Adding upstream version 2:4.17.12+dfsg.upstream/2%4.17.12+dfsgupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

82 files changed, 24519 insertions, 0 deletions

diff --git a/lib/tevent/ABI/tevent-0.10.0.sigs b/lib/tevent/ABI/tevent-0.10.0.sigs
new file mode 100644
index 0000000..f6227db
--- /dev/null
+++ b/lib/tevent/ABI/tevent-0.10.0.sigs
@@ -0,0 +1,126 @@
+_tevent_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+_tevent_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+_tevent_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+_tevent_context_pop_use: void (struct tevent_context *, const char *)
+_tevent_context_push_use: bool (struct tevent_context *, const char *)
+_tevent_context_wrapper_create: struct tevent_context *(struct tevent_context *, TALLOC_CTX *, const struct tevent_wrapper_ops *, void *, size_t, const char *, const char *)
+_tevent_create_immediate: struct tevent_immediate *(TALLOC_CTX *, const char *)
+_tevent_loop_once: int (struct tevent_context *, const char *)
+_tevent_loop_until: int (struct tevent_context *, bool (*)(void *), void *, const char *)
+_tevent_loop_wait: int (struct tevent_context *, const char *)
+_tevent_queue_create: struct tevent_queue *(TALLOC_CTX *, const char *, const char *)
+_tevent_req_callback_data: void *(struct tevent_req *)
+_tevent_req_cancel: bool (struct tevent_req *, const char *)
+_tevent_req_create: struct tevent_req *(TALLOC_CTX *, void *, size_t, const char *, const char *)
+_tevent_req_data: void *(struct tevent_req *)
+_tevent_req_done: void (struct tevent_req *, const char *)
+_tevent_req_error: bool (struct tevent_req *, uint64_t, const char *)
+_tevent_req_nomem: bool (const void *, struct tevent_req *, const char *)
+_tevent_req_notify_callback: void (struct tevent_req *, const char *)
+_tevent_req_oom: void (struct tevent_req *, const char *)
+_tevent_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+_tevent_threaded_schedule_immediate: void (struct tevent_threaded_context *, struct tevent_immediate *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_abort: void (struct tevent_context *, const char *)
+tevent_backend_list: const char **(TALLOC_CTX *)
+tevent_cleanup_pending_signal_handlers: void (struct tevent_signal *)
+tevent_common_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+tevent_common_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+tevent_common_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+tevent_common_add_timer_v2: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+tevent_common_check_double_free: void (TALLOC_CTX *, const char *)
+tevent_common_check_signal: int (struct tevent_context *)
+tevent_common_context_destructor: int (struct tevent_context *)
+tevent_common_fd_destructor: int (struct tevent_fd *)
+tevent_common_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_common_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_common_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_common_have_events: bool (struct tevent_context *)
+tevent_common_invoke_fd_handler: int (struct tevent_fd *, uint16_t, bool *)
+tevent_common_invoke_immediate_handler: int (struct tevent_immediate *, bool *)
+tevent_common_invoke_signal_handler: int (struct tevent_signal *, int, int, void *, bool *)
+tevent_common_invoke_timer_handler: int (struct tevent_timer *, struct timeval, bool *)
+tevent_common_loop_immediate: bool (struct tevent_context *)
+tevent_common_loop_timer_delay: struct timeval (struct tevent_context *)
+tevent_common_loop_wait: int (struct tevent_context *, const char *)
+tevent_common_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_common_threaded_activate_immediate: void (struct tevent_context *)
+tevent_common_wakeup: int (struct tevent_context *)
+tevent_common_wakeup_fd: int (int)
+tevent_common_wakeup_init: int (struct tevent_context *)
+tevent_context_init: struct tevent_context *(TALLOC_CTX *)
+tevent_context_init_byname: struct tevent_context *(TALLOC_CTX *, const char *)
+tevent_context_init_ops: struct tevent_context *(TALLOC_CTX *, const struct tevent_ops *, void *)
+tevent_context_is_wrapper: bool (struct tevent_context *)
+tevent_context_same_loop: bool (struct tevent_context *, struct tevent_context *)
+tevent_debug: void (struct tevent_context *, enum tevent_debug_level, const char *, ...)
+tevent_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_fd_set_auto_close: void (struct tevent_fd *)
+tevent_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_get_trace_callback: void (struct tevent_context *, tevent_trace_callback_t *, void *)
+tevent_loop_allow_nesting: void (struct tevent_context *)
+tevent_loop_set_nesting_hook: void (struct tevent_context *, tevent_nesting_hook, void *)
+tevent_num_signals: size_t (void)
+tevent_queue_add: bool (struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_add_entry: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_add_optimize_empty: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_entry_untrigger: void (struct tevent_queue_entry *)
+tevent_queue_length: size_t (struct tevent_queue *)
+tevent_queue_running: bool (struct tevent_queue *)
+tevent_queue_start: void (struct tevent_queue *)
+tevent_queue_stop: void (struct tevent_queue *)
+tevent_queue_wait_recv: bool (struct tevent_req *)
+tevent_queue_wait_send: struct tevent_req *(TALLOC_CTX *, struct tevent_context *, struct tevent_queue *)
+tevent_re_initialise: int (struct tevent_context *)
+tevent_register_backend: bool (const char *, const struct tevent_ops *)
+tevent_req_default_print: char *(struct tevent_req *, TALLOC_CTX *)
+tevent_req_defer_callback: void (struct tevent_req *, struct tevent_context *)
+tevent_req_get_profile: const struct tevent_req_profile *(struct tevent_req *)
+tevent_req_is_error: bool (struct tevent_req *, enum tevent_req_state *, uint64_t *)
+tevent_req_is_in_progress: bool (struct tevent_req *)
+tevent_req_move_profile: struct tevent_req_profile *(struct tevent_req *, TALLOC_CTX *)
+tevent_req_poll: bool (struct tevent_req *, struct tevent_context *)
+tevent_req_post: struct tevent_req *(struct tevent_req *, struct tevent_context *)
+tevent_req_print: char *(TALLOC_CTX *, struct tevent_req *)
+tevent_req_profile_append_sub: void (struct tevent_req_profile *, struct tevent_req_profile **)
+tevent_req_profile_create: struct tevent_req_profile *(TALLOC_CTX *)
+tevent_req_profile_get_name: void (const struct tevent_req_profile *, const char **)
+tevent_req_profile_get_start: void (const struct tevent_req_profile *, const char **, struct timeval *)
+tevent_req_profile_get_status: void (const struct tevent_req_profile *, pid_t *, enum tevent_req_state *, uint64_t *)
+tevent_req_profile_get_stop: void (const struct tevent_req_profile *, const char **, struct timeval *)
+tevent_req_profile_get_subprofiles: const struct tevent_req_profile *(const struct tevent_req_profile *)
+tevent_req_profile_next: const struct tevent_req_profile *(const struct tevent_req_profile *)
+tevent_req_profile_set_name: bool (struct tevent_req_profile *, const char *)
+tevent_req_profile_set_start: bool (struct tevent_req_profile *, const char *, struct timeval)
+tevent_req_profile_set_status: void (struct tevent_req_profile *, pid_t, enum tevent_req_state, uint64_t)
+tevent_req_profile_set_stop: bool (struct tevent_req_profile *, const char *, struct timeval)
+tevent_req_received: void (struct tevent_req *)
+tevent_req_reset_endtime: void (struct tevent_req *)
+tevent_req_set_callback: void (struct tevent_req *, tevent_req_fn, void *)
+tevent_req_set_cancel_fn: void (struct tevent_req *, tevent_req_cancel_fn)
+tevent_req_set_cleanup_fn: void (struct tevent_req *, tevent_req_cleanup_fn)
+tevent_req_set_endtime: bool (struct tevent_req *, struct tevent_context *, struct timeval)
+tevent_req_set_print_fn: void (struct tevent_req *, tevent_req_print_fn)
+tevent_req_set_profile: bool (struct tevent_req *)
+tevent_sa_info_queue_count: size_t (void)
+tevent_set_abort_fn: void (void (*)(const char *))
+tevent_set_debug: int (struct tevent_context *, void (*)(void *, enum tevent_debug_level, const char *, va_list), void *)
+tevent_set_debug_stderr: int (struct tevent_context *)
+tevent_set_default_backend: void (const char *)
+tevent_set_trace_callback: void (struct tevent_context *, tevent_trace_callback_t, void *)
+tevent_signal_support: bool (struct tevent_context *)
+tevent_thread_proxy_create: struct tevent_thread_proxy *(struct tevent_context *)
+tevent_thread_proxy_schedule: void (struct tevent_thread_proxy *, struct tevent_immediate **, tevent_immediate_handler_t, void *)
+tevent_threaded_context_create: struct tevent_threaded_context *(TALLOC_CTX *, struct tevent_context *)
+tevent_timeval_add: struct timeval (const struct timeval *, uint32_t, uint32_t)
+tevent_timeval_compare: int (const struct timeval *, const struct timeval *)
+tevent_timeval_current: struct timeval (void)
+tevent_timeval_current_ofs: struct timeval (uint32_t, uint32_t)
+tevent_timeval_is_zero: bool (const struct timeval *)
+tevent_timeval_set: struct timeval (uint32_t, uint32_t)
+tevent_timeval_until: struct timeval (const struct timeval *, const struct timeval *)
+tevent_timeval_zero: struct timeval (void)
+tevent_trace_point_callback: void (struct tevent_context *, enum tevent_trace_point)
+tevent_update_timer: void (struct tevent_timer *, struct timeval)
+tevent_wakeup_recv: bool (struct tevent_req *)
+tevent_wakeup_send: struct tevent_req *(TALLOC_CTX *, struct tevent_context *, struct timeval)
diff --git a/lib/tevent/ABI/tevent-0.10.1.sigs b/lib/tevent/ABI/tevent-0.10.1.sigs
new file mode 100644
index 0000000..f6227db
--- /dev/null
+++ b/lib/tevent/ABI/tevent-0.10.1.sigs
@@ -0,0 +1,126 @@
+_tevent_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+_tevent_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+_tevent_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+_tevent_context_pop_use: void (struct tevent_context *, const char *)
+_tevent_context_push_use: bool (struct tevent_context *, const char *)
+_tevent_context_wrapper_create: struct tevent_context *(struct tevent_context *, TALLOC_CTX *, const struct tevent_wrapper_ops *, void *, size_t, const char *, const char *)
+_tevent_create_immediate: struct tevent_immediate *(TALLOC_CTX *, const char *)
+_tevent_loop_once: int (struct tevent_context *, const char *)
+_tevent_loop_until: int (struct tevent_context *, bool (*)(void *), void *, const char *)
+_tevent_loop_wait: int (struct tevent_context *, const char *)
+_tevent_queue_create: struct tevent_queue *(TALLOC_CTX *, const char *, const char *)
+_tevent_req_callback_data: void *(struct tevent_req *)
+_tevent_req_cancel: bool (struct tevent_req *, const char *)
+_tevent_req_create: struct tevent_req *(TALLOC_CTX *, void *, size_t, const char *, const char *)
+_tevent_req_data: void *(struct tevent_req *)
+_tevent_req_done: void (struct tevent_req *, const char *)
+_tevent_req_error: bool (struct tevent_req *, uint64_t, const char *)
+_tevent_req_nomem: bool (const void *, struct tevent_req *, const char *)
+_tevent_req_notify_callback: void (struct tevent_req *, const char *)
+_tevent_req_oom: void (struct tevent_req *, const char *)
+_tevent_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+_tevent_threaded_schedule_immediate: void (struct tevent_threaded_context *, struct tevent_immediate *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_abort: void (struct tevent_context *, const char *)
+tevent_backend_list: const char **(TALLOC_CTX *)
+tevent_cleanup_pending_signal_handlers: void (struct tevent_signal *)
+tevent_common_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+tevent_common_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+tevent_common_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+tevent_common_add_timer_v2: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+tevent_common_check_double_free: void (TALLOC_CTX *, const char *)
+tevent_common_check_signal: int (struct tevent_context *)
+tevent_common_context_destructor: int (struct tevent_context *)
+tevent_common_fd_destructor: int (struct tevent_fd *)
+tevent_common_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_common_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_common_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_common_have_events: bool (struct tevent_context *)
+tevent_common_invoke_fd_handler: int (struct tevent_fd *, uint16_t, bool *)
+tevent_common_invoke_immediate_handler: int (struct tevent_immediate *, bool *)
+tevent_common_invoke_signal_handler: int (struct tevent_signal *, int, int, void *, bool *)
+tevent_common_invoke_timer_handler: int (struct tevent_timer *, struct timeval, bool *)
+tevent_common_loop_immediate: bool (struct tevent_context *)
+tevent_common_loop_timer_delay: struct timeval (struct tevent_context *)
+tevent_common_loop_wait: int (struct tevent_context *, const char *)
+tevent_common_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_common_threaded_activate_immediate: void (struct tevent_context *)
+tevent_common_wakeup: int (struct tevent_context *)
+tevent_common_wakeup_fd: int (int)
+tevent_common_wakeup_init: int (struct tevent_context *)
+tevent_context_init: struct tevent_context *(TALLOC_CTX *)
+tevent_context_init_byname: struct tevent_context *(TALLOC_CTX *, const char *)
+tevent_context_init_ops: struct tevent_context *(TALLOC_CTX *, const struct tevent_ops *, void *)
+tevent_context_is_wrapper: bool (struct tevent_context *)
+tevent_context_same_loop: bool (struct tevent_context *, struct tevent_context *)
+tevent_debug: void (struct tevent_context *, enum tevent_debug_level, const char *, ...)
+tevent_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_fd_set_auto_close: void (struct tevent_fd *)
+tevent_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_get_trace_callback: void (struct tevent_context *, tevent_trace_callback_t *, void *)
+tevent_loop_allow_nesting: void (struct tevent_context *)
+tevent_loop_set_nesting_hook: void (struct tevent_context *, tevent_nesting_hook, void *)
+tevent_num_signals: size_t (void)
+tevent_queue_add: bool (struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_add_entry: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_add_optimize_empty: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_entry_untrigger: void (struct tevent_queue_entry *)
+tevent_queue_length: size_t (struct tevent_queue *)
+tevent_queue_running: bool (struct tevent_queue *)
+tevent_queue_start: void (struct tevent_queue *)
+tevent_queue_stop: void (struct tevent_queue *)
+tevent_queue_wait_recv: bool (struct tevent_req *)
+tevent_queue_wait_send: struct tevent_req *(TALLOC_CTX *, struct tevent_context *, struct tevent_queue *)
+tevent_re_initialise: int (struct tevent_context *)
+tevent_register_backend: bool (const char *, const struct tevent_ops *)
+tevent_req_default_print: char *(struct tevent_req *, TALLOC_CTX *)
+tevent_req_defer_callback: void (struct tevent_req *, struct tevent_context *)
+tevent_req_get_profile: const struct tevent_req_profile *(struct tevent_req *)
+tevent_req_is_error: bool (struct tevent_req *, enum tevent_req_state *, uint64_t *)
+tevent_req_is_in_progress: bool (struct tevent_req *)
+tevent_req_move_profile: struct tevent_req_profile *(struct tevent_req *, TALLOC_CTX *)
+tevent_req_poll: bool (struct tevent_req *, struct tevent_context *)
+tevent_req_post: struct tevent_req *(struct tevent_req *, struct tevent_context *)
+tevent_req_print: char *(TALLOC_CTX *, struct tevent_req *)
+tevent_req_profile_append_sub: void (struct tevent_req_profile *, struct tevent_req_profile **)
+tevent_req_profile_create: struct tevent_req_profile *(TALLOC_CTX *)
+tevent_req_profile_get_name: void (const struct tevent_req_profile *, const char **)
+tevent_req_profile_get_start: void (const struct tevent_req_profile *, const char **, struct timeval *)
+tevent_req_profile_get_status: void (const struct tevent_req_profile *, pid_t *, enum tevent_req_state *, uint64_t *)
+tevent_req_profile_get_stop: void (const struct tevent_req_profile *, const char **, struct timeval *)
+tevent_req_profile_get_subprofiles: const struct tevent_req_profile *(const struct tevent_req_profile *)
+tevent_req_profile_next: const struct tevent_req_profile *(const struct tevent_req_profile *)
+tevent_req_profile_set_name: bool (struct tevent_req_profile *, const char *)
+tevent_req_profile_set_start: bool (struct tevent_req_profile *, const char *, struct timeval)
+tevent_req_profile_set_status: void (struct tevent_req_profile *, pid_t, enum tevent_req_state, uint64_t)
+tevent_req_profile_set_stop: bool (struct tevent_req_profile *, const char *, struct timeval)
+tevent_req_received: void (struct tevent_req *)
+tevent_req_reset_endtime: void (struct tevent_req *)
+tevent_req_set_callback: void (struct tevent_req *, tevent_req_fn, void *)
+tevent_req_set_cancel_fn: void (struct tevent_req *, tevent_req_cancel_fn)
+tevent_req_set_cleanup_fn: void (struct tevent_req *, tevent_req_cleanup_fn)
+tevent_req_set_endtime: bool (struct tevent_req *, struct tevent_context *, struct timeval)
+tevent_req_set_print_fn: void (struct tevent_req *, tevent_req_print_fn)
+tevent_req_set_profile: bool (struct tevent_req *)
+tevent_sa_info_queue_count: size_t (void)
+tevent_set_abort_fn: void (void (*)(const char *))
+tevent_set_debug: int (struct tevent_context *, void (*)(void *, enum tevent_debug_level, const char *, va_list), void *)
+tevent_set_debug_stderr: int (struct tevent_context *)
+tevent_set_default_backend: void (const char *)
+tevent_set_trace_callback: void (struct tevent_context *, tevent_trace_callback_t, void *)
+tevent_signal_support: bool (struct tevent_context *)
+tevent_thread_proxy_create: struct tevent_thread_proxy *(struct tevent_context *)
+tevent_thread_proxy_schedule: void (struct tevent_thread_proxy *, struct tevent_immediate **, tevent_immediate_handler_t, void *)
+tevent_threaded_context_create: struct tevent_threaded_context *(TALLOC_CTX *, struct tevent_context *)
+tevent_timeval_add: struct timeval (const struct timeval *, uint32_t, uint32_t)
+tevent_timeval_compare: int (const struct timeval *, const struct timeval *)
+tevent_timeval_current: struct timeval (void)
+tevent_timeval_current_ofs: struct timeval (uint32_t, uint32_t)
+tevent_timeval_is_zero: bool (const struct timeval *)
+tevent_timeval_set: struct timeval (uint32_t, uint32_t)
+tevent_timeval_until: struct timeval (const struct timeval *, const struct timeval *)
+tevent_timeval_zero: struct timeval (void)
+tevent_trace_point_callback: void (struct tevent_context *, enum tevent_trace_point)
+tevent_update_timer: void (struct tevent_timer *, struct timeval)
+tevent_wakeup_recv: bool (struct tevent_req *)
+tevent_wakeup_send: struct tevent_req *(TALLOC_CTX *, struct tevent_context *, struct timeval)
diff --git a/lib/tevent/ABI/tevent-0.10.2.sigs b/lib/tevent/ABI/tevent-0.10.2.sigs
new file mode 100644
index 0000000..f6227db
--- /dev/null
+++ b/lib/tevent/ABI/tevent-0.10.2.sigs
@@ -0,0 +1,126 @@
+_tevent_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+_tevent_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+_tevent_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+_tevent_context_pop_use: void (struct tevent_context *, const char *)
+_tevent_context_push_use: bool (struct tevent_context *, const char *)
+_tevent_context_wrapper_create: struct tevent_context *(struct tevent_context *, TALLOC_CTX *, const struct tevent_wrapper_ops *, void *, size_t, const char *, const char *)
+_tevent_create_immediate: struct tevent_immediate *(TALLOC_CTX *, const char *)
+_tevent_loop_once: int (struct tevent_context *, const char *)
+_tevent_loop_until: int (struct tevent_context *, bool (*)(void *), void *, const char *)
+_tevent_loop_wait: int (struct tevent_context *, const char *)
+_tevent_queue_create: struct tevent_queue *(TALLOC_CTX *, const char *, const char *)
+_tevent_req_callback_data: void *(struct tevent_req *)
+_tevent_req_cancel: bool (struct tevent_req *, const char *)
+_tevent_req_create: struct tevent_req *(TALLOC_CTX *, void *, size_t, const char *, const char *)
+_tevent_req_data: void *(struct tevent_req *)
+_tevent_req_done: void (struct tevent_req *, const char *)
+_tevent_req_error: bool (struct tevent_req *, uint64_t, const char *)
+_tevent_req_nomem: bool (const void *, struct tevent_req *, const char *)
+_tevent_req_notify_callback: void (struct tevent_req *, const char *)
+_tevent_req_oom: void (struct tevent_req *, const char *)
+_tevent_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+_tevent_threaded_schedule_immediate: void (struct tevent_threaded_context *, struct tevent_immediate *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_abort: void (struct tevent_context *, const char *)
+tevent_backend_list: const char **(TALLOC_CTX *)
+tevent_cleanup_pending_signal_handlers: void (struct tevent_signal *)
+tevent_common_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+tevent_common_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+tevent_common_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+tevent_common_add_timer_v2: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+tevent_common_check_double_free: void (TALLOC_CTX *, const char *)
+tevent_common_check_signal: int (struct tevent_context *)
+tevent_common_context_destructor: int (struct tevent_context *)
+tevent_common_fd_destructor: int (struct tevent_fd *)
+tevent_common_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_common_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_common_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_common_have_events: bool (struct tevent_context *)
+tevent_common_invoke_fd_handler: int (struct tevent_fd *, uint16_t, bool *)
+tevent_common_invoke_immediate_handler: int (struct tevent_immediate *, bool *)
+tevent_common_invoke_signal_handler: int (struct tevent_signal *, int, int, void *, bool *)
+tevent_common_invoke_timer_handler: int (struct tevent_timer *, struct timeval, bool *)
+tevent_common_loop_immediate: bool (struct tevent_context *)
+tevent_common_loop_timer_delay: struct timeval (struct tevent_context *)
+tevent_common_loop_wait: int (struct tevent_context *, const char *)
+tevent_common_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_common_threaded_activate_immediate: void (struct tevent_context *)
+tevent_common_wakeup: int (struct tevent_context *)
+tevent_common_wakeup_fd: int (int)
+tevent_common_wakeup_init: int (struct tevent_context *)
+tevent_context_init: struct tevent_context *(TALLOC_CTX *)
+tevent_context_init_byname: struct tevent_context *(TALLOC_CTX *, const char *)
+tevent_context_init_ops: struct tevent_context *(TALLOC_CTX *, const struct tevent_ops *, void *)
+tevent_context_is_wrapper: bool (struct tevent_context *)
+tevent_context_same_loop: bool (struct tevent_context *, struct tevent_context *)
+tevent_debug: void (struct tevent_context *, enum tevent_debug_level, const char *, ...)
+tevent_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_fd_set_auto_close: void (struct tevent_fd *)
+tevent_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_get_trace_callback: void (struct tevent_context *, tevent_trace_callback_t *, void *)
+tevent_loop_allow_nesting: void (struct tevent_context *)
+tevent_loop_set_nesting_hook: void (struct tevent_context *, tevent_nesting_hook, void *)
+tevent_num_signals: size_t (void)
+tevent_queue_add: bool (struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_add_entry: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_add_optimize_empty: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_entry_untrigger: void (struct tevent_queue_entry *)
+tevent_queue_length: size_t (struct tevent_queue *)
+tevent_queue_running: bool (struct tevent_queue *)
+tevent_queue_start: void (struct tevent_queue *)
+tevent_queue_stop: void (struct tevent_queue *)
+tevent_queue_wait_recv: bool (struct tevent_req *)
+tevent_queue_wait_send: struct tevent_req *(TALLOC_CTX *, struct tevent_context *, struct tevent_queue *)
+tevent_re_initialise: int (struct tevent_context *)
+tevent_register_backend: bool (const char *, const struct tevent_ops *)
+tevent_req_default_print: char *(struct tevent_req *, TALLOC_CTX *)
+tevent_req_defer_callback: void (struct tevent_req *, struct tevent_context *)
+tevent_req_get_profile: const struct tevent_req_profile *(struct tevent_req *)
+tevent_req_is_error: bool (struct tevent_req *, enum tevent_req_state *, uint64_t *)
+tevent_req_is_in_progress: bool (struct tevent_req *)
+tevent_req_move_profile: struct tevent_req_profile *(struct tevent_req *, TALLOC_CTX *)
+tevent_req_poll: bool (struct tevent_req *, struct tevent_context *)
+tevent_req_post: struct tevent_req *(struct tevent_req *, struct tevent_context *)
+tevent_req_print: char *(TALLOC_CTX *, struct tevent_req *)
+tevent_req_profile_append_sub: void (struct tevent_req_profile *, struct tevent_req_profile **)
+tevent_req_profile_create: struct tevent_req_profile *(TALLOC_CTX *)
+tevent_req_profile_get_name: void (const struct tevent_req_profile *, const char **)
+tevent_req_profile_get_start: void (const struct tevent_req_profile *, const char **, struct timeval *)
+tevent_req_profile_get_status: void (const struct tevent_req_profile *, pid_t *, enum tevent_req_state *, uint64_t *)
+tevent_req_profile_get_stop: void (const struct tevent_req_profile *, const char **, struct timeval *)
+tevent_req_profile_get_subprofiles: const struct tevent_req_profile *(const struct tevent_req_profile *)
+tevent_req_profile_next: const struct tevent_req_profile *(const struct tevent_req_profile *)
+tevent_req_profile_set_name: bool (struct tevent_req_profile *, const char *)
+tevent_req_profile_set_start: bool (struct tevent_req_profile *, const char *, struct timeval)
+tevent_req_profile_set_status: void (struct tevent_req_profile *, pid_t, enum tevent_req_state, uint64_t)
+tevent_req_profile_set_stop: bool (struct tevent_req_profile *, const char *, struct timeval)
+tevent_req_received: void (struct tevent_req *)
+tevent_req_reset_endtime: void (struct tevent_req *)
+tevent_req_set_callback: void (struct tevent_req *, tevent_req_fn, void *)
+tevent_req_set_cancel_fn: void (struct tevent_req *, tevent_req_cancel_fn)
+tevent_req_set_cleanup_fn: void (struct tevent_req *, tevent_req_cleanup_fn)
+tevent_req_set_endtime: bool (struct tevent_req *, struct tevent_context *, struct timeval)
+tevent_req_set_print_fn: void (struct tevent_req *, tevent_req_print_fn)
+tevent_req_set_profile: bool (struct tevent_req *)
+tevent_sa_info_queue_count: size_t (void)
+tevent_set_abort_fn: void (void (*)(const char *))
+tevent_set_debug: int (struct tevent_context *, void (*)(void *, enum tevent_debug_level, const char *, va_list), void *)
+tevent_set_debug_stderr: int (struct tevent_context *)
+tevent_set_default_backend: void (const char *)
+tevent_set_trace_callback: void (struct tevent_context *, tevent_trace_callback_t, void *)
+tevent_signal_support: bool (struct tevent_context *)
+tevent_thread_proxy_create: struct tevent_thread_proxy *(struct tevent_context *)
+tevent_thread_proxy_schedule: void (struct tevent_thread_proxy *, struct tevent_immediate **, tevent_immediate_handler_t, void *)
+tevent_threaded_context_create: struct tevent_threaded_context *(TALLOC_CTX *, struct tevent_context *)
+tevent_timeval_add: struct timeval (const struct timeval *, uint32_t, uint32_t)
+tevent_timeval_compare: int (const struct timeval *, const struct timeval *)
+tevent_timeval_current: struct timeval (void)
+tevent_timeval_current_ofs: struct timeval (uint32_t, uint32_t)
+tevent_timeval_is_zero: bool (const struct timeval *)
+tevent_timeval_set: struct timeval (uint32_t, uint32_t)
+tevent_timeval_until: struct timeval (const struct timeval *, const struct timeval *)
+tevent_timeval_zero: struct timeval (void)
+tevent_trace_point_callback: void (struct tevent_context *, enum tevent_trace_point)
+tevent_update_timer: void (struct tevent_timer *, struct timeval)
+tevent_wakeup_recv: bool (struct tevent_req *)
+tevent_wakeup_send: struct tevent_req *(TALLOC_CTX *, struct tevent_context *, struct timeval)
diff --git a/lib/tevent/ABI/tevent-0.11.0.sigs b/lib/tevent/ABI/tevent-0.11.0.sigs
new file mode 100644
index 0000000..e64007e
--- /dev/null
+++ b/lib/tevent/ABI/tevent-0.11.0.sigs
@@ -0,0 +1,146 @@
+_tevent_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+_tevent_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+_tevent_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+_tevent_context_pop_use: void (struct tevent_context *, const char *)
+_tevent_context_push_use: bool (struct tevent_context *, const char *)
+_tevent_context_wrapper_create: struct tevent_context *(struct tevent_context *, TALLOC_CTX *, const struct tevent_wrapper_ops *, void *, size_t, const char *, const char *)
+_tevent_create_immediate: struct tevent_immediate *(TALLOC_CTX *, const char *)
+_tevent_loop_once: int (struct tevent_context *, const char *)
+_tevent_loop_until: int (struct tevent_context *, bool (*)(void *), void *, const char *)
+_tevent_loop_wait: int (struct tevent_context *, const char *)
+_tevent_queue_create: struct tevent_queue *(TALLOC_CTX *, const char *, const char *)
+_tevent_req_callback_data: void *(struct tevent_req *)
+_tevent_req_cancel: bool (struct tevent_req *, const char *)
+_tevent_req_create: struct tevent_req *(TALLOC_CTX *, void *, size_t, const char *, const char *)
+_tevent_req_data: void *(struct tevent_req *)
+_tevent_req_done: void (struct tevent_req *, const char *)
+_tevent_req_error: bool (struct tevent_req *, uint64_t, const char *)
+_tevent_req_nomem: bool (const void *, struct tevent_req *, const char *)
+_tevent_req_notify_callback: void (struct tevent_req *, const char *)
+_tevent_req_oom: void (struct tevent_req *, const char *)
+_tevent_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+_tevent_threaded_schedule_immediate: void (struct tevent_threaded_context *, struct tevent_immediate *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_abort: void (struct tevent_context *, const char *)
+tevent_backend_list: const char **(TALLOC_CTX *)
+tevent_cleanup_pending_signal_handlers: void (struct tevent_signal *)
+tevent_common_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+tevent_common_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+tevent_common_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+tevent_common_add_timer_v2: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+tevent_common_check_double_free: void (TALLOC_CTX *, const char *)
+tevent_common_check_signal: int (struct tevent_context *)
+tevent_common_context_destructor: int (struct tevent_context *)
+tevent_common_fd_destructor: int (struct tevent_fd *)
+tevent_common_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_common_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_common_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_common_have_events: bool (struct tevent_context *)
+tevent_common_invoke_fd_handler: int (struct tevent_fd *, uint16_t, bool *)
+tevent_common_invoke_immediate_handler: int (struct tevent_immediate *, bool *)
+tevent_common_invoke_signal_handler: int (struct tevent_signal *, int, int, void *, bool *)
+tevent_common_invoke_timer_handler: int (struct tevent_timer *, struct timeval, bool *)
+tevent_common_loop_immediate: bool (struct tevent_context *)
+tevent_common_loop_timer_delay: struct timeval (struct tevent_context *)
+tevent_common_loop_wait: int (struct tevent_context *, const char *)
+tevent_common_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_common_threaded_activate_immediate: void (struct tevent_context *)
+tevent_common_wakeup: int (struct tevent_context *)
+tevent_common_wakeup_fd: int (int)
+tevent_common_wakeup_init: int (struct tevent_context *)
+tevent_context_init: struct tevent_context *(TALLOC_CTX *)
+tevent_context_init_byname: struct tevent_context *(TALLOC_CTX *, const char *)
+tevent_context_init_ops: struct tevent_context *(TALLOC_CTX *, const struct tevent_ops *, void *)
+tevent_context_is_wrapper: bool (struct tevent_context *)
+tevent_context_same_loop: bool (struct tevent_context *, struct tevent_context *)
+tevent_debug: void (struct tevent_context *, enum tevent_debug_level, const char *, ...)
+tevent_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_fd_get_tag: uint64_t (const struct tevent_fd *)
+tevent_fd_set_auto_close: void (struct tevent_fd *)
+tevent_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_fd_set_tag: void (struct tevent_fd *, uint64_t)
+tevent_get_trace_callback: void (struct tevent_context *, tevent_trace_callback_t *, void *)
+tevent_get_trace_fd_callback: void (struct tevent_context *, tevent_trace_fd_callback_t *, void *)
+tevent_get_trace_immediate_callback: void (struct tevent_context *, tevent_trace_immediate_callback_t *, void *)
+tevent_get_trace_signal_callback: void (struct tevent_context *, tevent_trace_signal_callback_t *, void *)
+tevent_get_trace_timer_callback: void (struct tevent_context *, tevent_trace_timer_callback_t *, void *)
+tevent_immediate_get_tag: uint64_t (const struct tevent_immediate *)
+tevent_immediate_set_tag: void (struct tevent_immediate *, uint64_t)
+tevent_loop_allow_nesting: void (struct tevent_context *)
+tevent_loop_set_nesting_hook: void (struct tevent_context *, tevent_nesting_hook, void *)
+tevent_num_signals: size_t (void)
+tevent_queue_add: bool (struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_add_entry: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_add_optimize_empty: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_entry_untrigger: void (struct tevent_queue_entry *)
+tevent_queue_length: size_t (struct tevent_queue *)
+tevent_queue_running: bool (struct tevent_queue *)
+tevent_queue_start: void (struct tevent_queue *)
+tevent_queue_stop: void (struct tevent_queue *)
+tevent_queue_wait_recv: bool (struct tevent_req *)
+tevent_queue_wait_send: struct tevent_req *(TALLOC_CTX *, struct tevent_context *, struct tevent_queue *)
+tevent_re_initialise: int (struct tevent_context *)
+tevent_register_backend: bool (const char *, const struct tevent_ops *)
+tevent_req_default_print: char *(struct tevent_req *, TALLOC_CTX *)
+tevent_req_defer_callback: void (struct tevent_req *, struct tevent_context *)
+tevent_req_get_profile: const struct tevent_req_profile *(struct tevent_req *)
+tevent_req_is_error: bool (struct tevent_req *, enum tevent_req_state *, uint64_t *)
+tevent_req_is_in_progress: bool (struct tevent_req *)
+tevent_req_move_profile: struct tevent_req_profile *(struct tevent_req *, TALLOC_CTX *)
+tevent_req_poll: bool (struct tevent_req *, struct tevent_context *)
+tevent_req_post: struct tevent_req *(struct tevent_req *, struct tevent_context *)
+tevent_req_print: char *(TALLOC_CTX *, struct tevent_req *)
+tevent_req_profile_append_sub: void (struct tevent_req_profile *, struct tevent_req_profile **)
+tevent_req_profile_create: struct tevent_req_profile *(TALLOC_CTX *)
+tevent_req_profile_get_name: void (const struct tevent_req_profile *, const char **)
+tevent_req_profile_get_start: void (const struct tevent_req_profile *, const char **, struct timeval *)
+tevent_req_profile_get_status: void (const struct tevent_req_profile *, pid_t *, enum tevent_req_state *, uint64_t *)
+tevent_req_profile_get_stop: void (const struct tevent_req_profile *, const char **, struct timeval *)
+tevent_req_profile_get_subprofiles: const struct tevent_req_profile *(const struct tevent_req_profile *)
+tevent_req_profile_next: const struct tevent_req_profile *(const struct tevent_req_profile *)
+tevent_req_profile_set_name: bool (struct tevent_req_profile *, const char *)
+tevent_req_profile_set_start: bool (struct tevent_req_profile *, const char *, struct timeval)
+tevent_req_profile_set_status: void (struct tevent_req_profile *, pid_t, enum tevent_req_state, uint64_t)
+tevent_req_profile_set_stop: bool (struct tevent_req_profile *, const char *, struct timeval)
+tevent_req_received: void (struct tevent_req *)
+tevent_req_reset_endtime: void (struct tevent_req *)
+tevent_req_set_callback: void (struct tevent_req *, tevent_req_fn, void *)
+tevent_req_set_cancel_fn: void (struct tevent_req *, tevent_req_cancel_fn)
+tevent_req_set_cleanup_fn: void (struct tevent_req *, tevent_req_cleanup_fn)
+tevent_req_set_endtime: bool (struct tevent_req *, struct tevent_context *, struct timeval)
+tevent_req_set_print_fn: void (struct tevent_req *, tevent_req_print_fn)
+tevent_req_set_profile: bool (struct tevent_req *)
+tevent_sa_info_queue_count: size_t (void)
+tevent_set_abort_fn: void (void (*)(const char *))
+tevent_set_debug: int (struct tevent_context *, void (*)(void *, enum tevent_debug_level, const char *, va_list), void *)
+tevent_set_debug_stderr: int (struct tevent_context *)
+tevent_set_default_backend: void (const char *)
+tevent_set_trace_callback: void (struct tevent_context *, tevent_trace_callback_t, void *)
+tevent_set_trace_fd_callback: void (struct tevent_context *, tevent_trace_fd_callback_t, void *)
+tevent_set_trace_immediate_callback: void (struct tevent_context *, tevent_trace_immediate_callback_t, void *)
+tevent_set_trace_signal_callback: void (struct tevent_context *, tevent_trace_signal_callback_t, void *)
+tevent_set_trace_timer_callback: void (struct tevent_context *, tevent_trace_timer_callback_t, void *)
+tevent_signal_get_tag: uint64_t (const struct tevent_signal *)
+tevent_signal_set_tag: void (struct tevent_signal *, uint64_t)
+tevent_signal_support: bool (struct tevent_context *)
+tevent_thread_proxy_create: struct tevent_thread_proxy *(struct tevent_context *)
+tevent_thread_proxy_schedule: void (struct tevent_thread_proxy *, struct tevent_immediate **, tevent_immediate_handler_t, void *)
+tevent_threaded_context_create: struct tevent_threaded_context *(TALLOC_CTX *, struct tevent_context *)
+tevent_timer_get_tag: uint64_t (const struct tevent_timer *)
+tevent_timer_set_tag: void (struct tevent_timer *, uint64_t)
+tevent_timeval_add: struct timeval (const struct timeval *, uint32_t, uint32_t)
+tevent_timeval_compare: int (const struct timeval *, const struct timeval *)
+tevent_timeval_current: struct timeval (void)
+tevent_timeval_current_ofs: struct timeval (uint32_t, uint32_t)
+tevent_timeval_is_zero: bool (const struct timeval *)
+tevent_timeval_set: struct timeval (uint32_t, uint32_t)
+tevent_timeval_until: struct timeval (const struct timeval *, const struct timeval *)
+tevent_timeval_zero: struct timeval (void)
+tevent_trace_fd_callback: void (struct tevent_context *, struct tevent_fd *, enum tevent_event_trace_point)
+tevent_trace_immediate_callback: void (struct tevent_context *, struct tevent_immediate *, enum tevent_event_trace_point)
+tevent_trace_point_callback: void (struct tevent_context *, enum tevent_trace_point)
+tevent_trace_signal_callback: void (struct tevent_context *, struct tevent_signal *, enum tevent_event_trace_point)
+tevent_trace_timer_callback: void (struct tevent_context *, struct tevent_timer *, enum tevent_event_trace_point)
+tevent_update_timer: void (struct tevent_timer *, struct timeval)
+tevent_wakeup_recv: bool (struct tevent_req *)
+tevent_wakeup_send: struct tevent_req *(TALLOC_CTX *, struct tevent_context *, struct timeval)
diff --git a/lib/tevent/ABI/tevent-0.12.0.sigs b/lib/tevent/ABI/tevent-0.12.0.sigs
new file mode 100644
index 0000000..22a8ce3
--- /dev/null
+++ b/lib/tevent/ABI/tevent-0.12.0.sigs
@@ -0,0 +1,151 @@
+_tevent_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+_tevent_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+_tevent_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+_tevent_context_pop_use: void (struct tevent_context *, const char *)
+_tevent_context_push_use: bool (struct tevent_context *, const char *)
+_tevent_context_wrapper_create: struct tevent_context *(struct tevent_context *, TALLOC_CTX *, const struct tevent_wrapper_ops *, void *, size_t, const char *, const char *)
+_tevent_create_immediate: struct tevent_immediate *(TALLOC_CTX *, const char *)
+_tevent_loop_once: int (struct tevent_context *, const char *)
+_tevent_loop_until: int (struct tevent_context *, bool (*)(void *), void *, const char *)
+_tevent_loop_wait: int (struct tevent_context *, const char *)
+_tevent_queue_create: struct tevent_queue *(TALLOC_CTX *, const char *, const char *)
+_tevent_req_callback_data: void *(struct tevent_req *)
+_tevent_req_cancel: bool (struct tevent_req *, const char *)
+_tevent_req_create: struct tevent_req *(TALLOC_CTX *, void *, size_t, const char *, const char *)
+_tevent_req_data: void *(struct tevent_req *)
+_tevent_req_done: void (struct tevent_req *, const char *)
+_tevent_req_error: bool (struct tevent_req *, uint64_t, const char *)
+_tevent_req_nomem: bool (const void *, struct tevent_req *, const char *)
+_tevent_req_notify_callback: void (struct tevent_req *, const char *)
+_tevent_req_oom: void (struct tevent_req *, const char *)
+_tevent_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+_tevent_threaded_schedule_immediate: void (struct tevent_threaded_context *, struct tevent_immediate *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_abort: void (struct tevent_context *, const char *)
+tevent_backend_list: const char **(TALLOC_CTX *)
+tevent_cleanup_pending_signal_handlers: void (struct tevent_signal *)
+tevent_common_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+tevent_common_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+tevent_common_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+tevent_common_add_timer_v2: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+tevent_common_check_double_free: void (TALLOC_CTX *, const char *)
+tevent_common_check_signal: int (struct tevent_context *)
+tevent_common_context_destructor: int (struct tevent_context *)
+tevent_common_fd_destructor: int (struct tevent_fd *)
+tevent_common_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_common_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_common_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_common_have_events: bool (struct tevent_context *)
+tevent_common_invoke_fd_handler: int (struct tevent_fd *, uint16_t, bool *)
+tevent_common_invoke_immediate_handler: int (struct tevent_immediate *, bool *)
+tevent_common_invoke_signal_handler: int (struct tevent_signal *, int, int, void *, bool *)
+tevent_common_invoke_timer_handler: int (struct tevent_timer *, struct timeval, bool *)
+tevent_common_loop_immediate: bool (struct tevent_context *)
+tevent_common_loop_timer_delay: struct timeval (struct tevent_context *)
+tevent_common_loop_wait: int (struct tevent_context *, const char *)
+tevent_common_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_common_threaded_activate_immediate: void (struct tevent_context *)
+tevent_common_wakeup: int (struct tevent_context *)
+tevent_common_wakeup_fd: int (int)
+tevent_common_wakeup_init: int (struct tevent_context *)
+tevent_context_init: struct tevent_context *(TALLOC_CTX *)
+tevent_context_init_byname: struct tevent_context *(TALLOC_CTX *, const char *)
+tevent_context_init_ops: struct tevent_context *(TALLOC_CTX *, const struct tevent_ops *, void *)
+tevent_context_is_wrapper: bool (struct tevent_context *)
+tevent_context_same_loop: bool (struct tevent_context *, struct tevent_context *)
+tevent_debug: void (struct tevent_context *, enum tevent_debug_level, const char *, ...)
+tevent_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_fd_get_tag: uint64_t (const struct tevent_fd *)
+tevent_fd_set_auto_close: void (struct tevent_fd *)
+tevent_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_fd_set_tag: void (struct tevent_fd *, uint64_t)
+tevent_get_trace_callback: void (struct tevent_context *, tevent_trace_callback_t *, void *)
+tevent_get_trace_fd_callback: void (struct tevent_context *, tevent_trace_fd_callback_t *, void *)
+tevent_get_trace_immediate_callback: void (struct tevent_context *, tevent_trace_immediate_callback_t *, void *)
+tevent_get_trace_queue_callback: void (struct tevent_context *, tevent_trace_queue_callback_t *, void *)
+tevent_get_trace_signal_callback: void (struct tevent_context *, tevent_trace_signal_callback_t *, void *)
+tevent_get_trace_timer_callback: void (struct tevent_context *, tevent_trace_timer_callback_t *, void *)
+tevent_immediate_get_tag: uint64_t (const struct tevent_immediate *)
+tevent_immediate_set_tag: void (struct tevent_immediate *, uint64_t)
+tevent_queue_entry_get_tag: uint64_t (const struct tevent_queue_entry *)
+tevent_queue_entry_set_tag: void (struct tevent_queue_entry *, uint64_t)
+tevent_loop_allow_nesting: void (struct tevent_context *)
+tevent_loop_set_nesting_hook: void (struct tevent_context *, tevent_nesting_hook, void *)
+tevent_num_signals: size_t (void)
+tevent_queue_add: bool (struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_add_entry: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_add_optimize_empty: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_entry_untrigger: void (struct tevent_queue_entry *)
+tevent_queue_length: size_t (struct tevent_queue *)
+tevent_queue_running: bool (struct tevent_queue *)
+tevent_queue_start: void (struct tevent_queue *)
+tevent_queue_stop: void (struct tevent_queue *)
+tevent_queue_wait_recv: bool (struct tevent_req *)
+tevent_queue_wait_send: struct tevent_req *(TALLOC_CTX *, struct tevent_context *, struct tevent_queue *)
+tevent_re_initialise: int (struct tevent_context *)
+tevent_register_backend: bool (const char *, const struct tevent_ops *)
+tevent_req_default_print: char *(struct tevent_req *, TALLOC_CTX *)
+tevent_req_defer_callback: void (struct tevent_req *, struct tevent_context *)
+tevent_req_get_profile: const struct tevent_req_profile *(struct tevent_req *)
+tevent_req_is_error: bool (struct tevent_req *, enum tevent_req_state *, uint64_t *)
+tevent_req_is_in_progress: bool (struct tevent_req *)
+tevent_req_move_profile: struct tevent_req_profile *(struct tevent_req *, TALLOC_CTX *)
+tevent_req_poll: bool (struct tevent_req *, struct tevent_context *)
+tevent_req_post: struct tevent_req *(struct tevent_req *, struct tevent_context *)
+tevent_req_print: char *(TALLOC_CTX *, struct tevent_req *)
+tevent_req_profile_append_sub: void (struct tevent_req_profile *, struct tevent_req_profile **)
+tevent_req_profile_create: struct tevent_req_profile *(TALLOC_CTX *)
+tevent_req_profile_get_name: void (const struct tevent_req_profile *, const char **)
+tevent_req_profile_get_start: void (const struct tevent_req_profile *, const char **, struct timeval *)
+tevent_req_profile_get_status: void (const struct tevent_req_profile *, pid_t *, enum tevent_req_state *, uint64_t *)
+tevent_req_profile_get_stop: void (const struct tevent_req_profile *, const char **, struct timeval *)
+tevent_req_profile_get_subprofiles: const struct tevent_req_profile *(const struct tevent_req_profile *)
+tevent_req_profile_next: const struct tevent_req_profile *(const struct tevent_req_profile *)
+tevent_req_profile_set_name: bool (struct tevent_req_profile *, const char *)
+tevent_req_profile_set_start: bool (struct tevent_req_profile *, const char *, struct timeval)
+tevent_req_profile_set_status: void (struct tevent_req_profile *, pid_t, enum tevent_req_state, uint64_t)
+tevent_req_profile_set_stop: bool (struct tevent_req_profile *, const char *, struct timeval)
+tevent_req_received: void (struct tevent_req *)
+tevent_req_reset_endtime: void (struct tevent_req *)
+tevent_req_set_callback: void (struct tevent_req *, tevent_req_fn, void *)
+tevent_req_set_cancel_fn: void (struct tevent_req *, tevent_req_cancel_fn)
+tevent_req_set_cleanup_fn: void (struct tevent_req *, tevent_req_cleanup_fn)
+tevent_req_set_endtime: bool (struct tevent_req *, struct tevent_context *, struct timeval)
+tevent_req_set_print_fn: void (struct tevent_req *, tevent_req_print_fn)
+tevent_req_set_profile: bool (struct tevent_req *)
+tevent_sa_info_queue_count: size_t (void)
+tevent_set_abort_fn: void (void (*)(const char *))
+tevent_set_debug: int (struct tevent_context *, void (*)(void *, enum tevent_debug_level, const char *, va_list), void *)
+tevent_set_debug_stderr: int (struct tevent_context *)
+tevent_set_default_backend: void (const char *)
+tevent_set_trace_callback: void (struct tevent_context *, tevent_trace_callback_t, void *)
+tevent_set_trace_fd_callback: void (struct tevent_context *, tevent_trace_fd_callback_t, void *)
+tevent_set_trace_immediate_callback: void (struct tevent_context *, tevent_trace_immediate_callback_t, void *)
+tevent_set_trace_queue_callback: void (struct tevent_context *, tevent_trace_queue_callback_t, void *)
+tevent_set_trace_signal_callback: void (struct tevent_context *, tevent_trace_signal_callback_t, void *)
+tevent_set_trace_timer_callback: void (struct tevent_context *, tevent_trace_timer_callback_t, void *)
+tevent_signal_get_tag: uint64_t (const struct tevent_signal *)
+tevent_signal_set_tag: void (struct tevent_signal *, uint64_t)
+tevent_signal_support: bool (struct tevent_context *)
+tevent_thread_proxy_create: struct tevent_thread_proxy *(struct tevent_context *)
+tevent_thread_proxy_schedule: void (struct tevent_thread_proxy *, struct tevent_immediate **, tevent_immediate_handler_t, void *)
+tevent_threaded_context_create: struct tevent_threaded_context *(TALLOC_CTX *, struct tevent_context *)
+tevent_timer_get_tag: uint64_t (const struct tevent_timer *)
+tevent_timer_set_tag: void (struct tevent_timer *, uint64_t)
+tevent_timeval_add: struct timeval (const struct timeval *, uint32_t, uint32_t)
+tevent_timeval_compare: int (const struct timeval *, const struct timeval *)
+tevent_timeval_current: struct timeval (void)
+tevent_timeval_current_ofs: struct timeval (uint32_t, uint32_t)
+tevent_timeval_is_zero: bool (const struct timeval *)
+tevent_timeval_set: struct timeval (uint32_t, uint32_t)
+tevent_timeval_until: struct timeval (const struct timeval *, const struct timeval *)
+tevent_timeval_zero: struct timeval (void)
+tevent_trace_fd_callback: void (struct tevent_context *, struct tevent_fd *, enum tevent_event_trace_point)
+tevent_trace_immediate_callback: void (struct tevent_context *, struct tevent_immediate *, enum tevent_event_trace_point)
+tevent_trace_queue_callback: void (struct tevent_context *, struct tevent_queue_entry *, enum tevent_event_trace_point)
+tevent_trace_point_callback: void (struct tevent_context *, enum tevent_trace_point)
+tevent_trace_signal_callback: void (struct tevent_context *, struct tevent_signal *, enum tevent_event_trace_point)
+tevent_trace_timer_callback: void (struct tevent_context *, struct tevent_timer *, enum tevent_event_trace_point)
+tevent_update_timer: void (struct tevent_timer *, struct timeval)
+tevent_wakeup_recv: bool (struct tevent_req *)
+tevent_wakeup_send: struct tevent_req *(TALLOC_CTX *, struct tevent_context *, struct timeval)
diff --git a/lib/tevent/ABI/tevent-0.12.1.sigs b/lib/tevent/ABI/tevent-0.12.1.sigs
new file mode 100644
index 0000000..0e4d1e1
--- /dev/null
+++ b/lib/tevent/ABI/tevent-0.12.1.sigs
@@ -0,0 +1,151 @@
+_tevent_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+_tevent_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+_tevent_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+_tevent_context_pop_use: void (struct tevent_context *, const char *)
+_tevent_context_push_use: bool (struct tevent_context *, const char *)
+_tevent_context_wrapper_create: struct tevent_context *(struct tevent_context *, TALLOC_CTX *, const struct tevent_wrapper_ops *, void *, size_t, const char *, const char *)
+_tevent_create_immediate: struct tevent_immediate *(TALLOC_CTX *, const char *)
+_tevent_loop_once: int (struct tevent_context *, const char *)
+_tevent_loop_until: int (struct tevent_context *, bool (*)(void *), void *, const char *)
+_tevent_loop_wait: int (struct tevent_context *, const char *)
+_tevent_queue_create: struct tevent_queue *(TALLOC_CTX *, const char *, const char *)
+_tevent_req_callback_data: void *(struct tevent_req *)
+_tevent_req_cancel: bool (struct tevent_req *, const char *)
+_tevent_req_create: struct tevent_req *(TALLOC_CTX *, void *, size_t, const char *, const char *)
+_tevent_req_data: void *(struct tevent_req *)
+_tevent_req_done: void (struct tevent_req *, const char *)
+_tevent_req_error: bool (struct tevent_req *, uint64_t, const char *)
+_tevent_req_nomem: bool (const void *, struct tevent_req *, const char *)
+_tevent_req_notify_callback: void (struct tevent_req *, const char *)
+_tevent_req_oom: void (struct tevent_req *, const char *)
+_tevent_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+_tevent_threaded_schedule_immediate: void (struct tevent_threaded_context *, struct tevent_immediate *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_abort: void (struct tevent_context *, const char *)
+tevent_backend_list: const char **(TALLOC_CTX *)
+tevent_cleanup_pending_signal_handlers: void (struct tevent_signal *)
+tevent_common_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+tevent_common_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+tevent_common_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+tevent_common_add_timer_v2: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+tevent_common_check_double_free: void (TALLOC_CTX *, const char *)
+tevent_common_check_signal: int (struct tevent_context *)
+tevent_common_context_destructor: int (struct tevent_context *)
+tevent_common_fd_destructor: int (struct tevent_fd *)
+tevent_common_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_common_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_common_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_common_have_events: bool (struct tevent_context *)
+tevent_common_invoke_fd_handler: int (struct tevent_fd *, uint16_t, bool *)
+tevent_common_invoke_immediate_handler: int (struct tevent_immediate *, bool *)
+tevent_common_invoke_signal_handler: int (struct tevent_signal *, int, int, void *, bool *)
+tevent_common_invoke_timer_handler: int (struct tevent_timer *, struct timeval, bool *)
+tevent_common_loop_immediate: bool (struct tevent_context *)
+tevent_common_loop_timer_delay: struct timeval (struct tevent_context *)
+tevent_common_loop_wait: int (struct tevent_context *, const char *)
+tevent_common_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_common_threaded_activate_immediate: void (struct tevent_context *)
+tevent_common_wakeup: int (struct tevent_context *)
+tevent_common_wakeup_fd: int (int)
+tevent_common_wakeup_init: int (struct tevent_context *)
+tevent_context_init: struct tevent_context *(TALLOC_CTX *)
+tevent_context_init_byname: struct tevent_context *(TALLOC_CTX *, const char *)
+tevent_context_init_ops: struct tevent_context *(TALLOC_CTX *, const struct tevent_ops *, void *)
+tevent_context_is_wrapper: bool (struct tevent_context *)
+tevent_context_same_loop: bool (struct tevent_context *, struct tevent_context *)
+tevent_debug: void (struct tevent_context *, enum tevent_debug_level, const char *, ...)
+tevent_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_fd_get_tag: uint64_t (const struct tevent_fd *)
+tevent_fd_set_auto_close: void (struct tevent_fd *)
+tevent_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_fd_set_tag: void (struct tevent_fd *, uint64_t)
+tevent_get_trace_callback: void (struct tevent_context *, tevent_trace_callback_t *, void *)
+tevent_get_trace_fd_callback: void (struct tevent_context *, tevent_trace_fd_callback_t *, void *)
+tevent_get_trace_immediate_callback: void (struct tevent_context *, tevent_trace_immediate_callback_t *, void *)
+tevent_get_trace_queue_callback: void (struct tevent_context *, tevent_trace_queue_callback_t *, void *)
+tevent_get_trace_signal_callback: void (struct tevent_context *, tevent_trace_signal_callback_t *, void *)
+tevent_get_trace_timer_callback: void (struct tevent_context *, tevent_trace_timer_callback_t *, void *)
+tevent_immediate_get_tag: uint64_t (const struct tevent_immediate *)
+tevent_immediate_set_tag: void (struct tevent_immediate *, uint64_t)
+tevent_loop_allow_nesting: void (struct tevent_context *)
+tevent_loop_set_nesting_hook: void (struct tevent_context *, tevent_nesting_hook, void *)
+tevent_num_signals: size_t (void)
+tevent_queue_add: bool (struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_add_entry: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_add_optimize_empty: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_entry_get_tag: uint64_t (const struct tevent_queue_entry *)
+tevent_queue_entry_set_tag: void (struct tevent_queue_entry *, uint64_t)
+tevent_queue_entry_untrigger: void (struct tevent_queue_entry *)
+tevent_queue_length: size_t (struct tevent_queue *)
+tevent_queue_running: bool (struct tevent_queue *)
+tevent_queue_start: void (struct tevent_queue *)
+tevent_queue_stop: void (struct tevent_queue *)
+tevent_queue_wait_recv: bool (struct tevent_req *)
+tevent_queue_wait_send: struct tevent_req *(TALLOC_CTX *, struct tevent_context *, struct tevent_queue *)
+tevent_re_initialise: int (struct tevent_context *)
+tevent_register_backend: bool (const char *, const struct tevent_ops *)
+tevent_req_default_print: char *(struct tevent_req *, TALLOC_CTX *)
+tevent_req_defer_callback: void (struct tevent_req *, struct tevent_context *)
+tevent_req_get_profile: const struct tevent_req_profile *(struct tevent_req *)
+tevent_req_is_error: bool (struct tevent_req *, enum tevent_req_state *, uint64_t *)
+tevent_req_is_in_progress: bool (struct tevent_req *)
+tevent_req_move_profile: struct tevent_req_profile *(struct tevent_req *, TALLOC_CTX *)
+tevent_req_poll: bool (struct tevent_req *, struct tevent_context *)
+tevent_req_post: struct tevent_req *(struct tevent_req *, struct tevent_context *)
+tevent_req_print: char *(TALLOC_CTX *, struct tevent_req *)
+tevent_req_profile_append_sub: void (struct tevent_req_profile *, struct tevent_req_profile **)
+tevent_req_profile_create: struct tevent_req_profile *(TALLOC_CTX *)
+tevent_req_profile_get_name: void (const struct tevent_req_profile *, const char **)
+tevent_req_profile_get_start: void (const struct tevent_req_profile *, const char **, struct timeval *)
+tevent_req_profile_get_status: void (const struct tevent_req_profile *, pid_t *, enum tevent_req_state *, uint64_t *)
+tevent_req_profile_get_stop: void (const struct tevent_req_profile *, const char **, struct timeval *)
+tevent_req_profile_get_subprofiles: const struct tevent_req_profile *(const struct tevent_req_profile *)
+tevent_req_profile_next: const struct tevent_req_profile *(const struct tevent_req_profile *)
+tevent_req_profile_set_name: bool (struct tevent_req_profile *, const char *)
+tevent_req_profile_set_start: bool (struct tevent_req_profile *, const char *, struct timeval)
+tevent_req_profile_set_status: void (struct tevent_req_profile *, pid_t, enum tevent_req_state, uint64_t)
+tevent_req_profile_set_stop: bool (struct tevent_req_profile *, const char *, struct timeval)
+tevent_req_received: void (struct tevent_req *)
+tevent_req_reset_endtime: void (struct tevent_req *)
+tevent_req_set_callback: void (struct tevent_req *, tevent_req_fn, void *)
+tevent_req_set_cancel_fn: void (struct tevent_req *, tevent_req_cancel_fn)
+tevent_req_set_cleanup_fn: void (struct tevent_req *, tevent_req_cleanup_fn)
+tevent_req_set_endtime: bool (struct tevent_req *, struct tevent_context *, struct timeval)
+tevent_req_set_print_fn: void (struct tevent_req *, tevent_req_print_fn)
+tevent_req_set_profile: bool (struct tevent_req *)
+tevent_sa_info_queue_count: size_t (void)
+tevent_set_abort_fn: void (void (*)(const char *))
+tevent_set_debug: int (struct tevent_context *, void (*)(void *, enum tevent_debug_level, const char *, va_list), void *)
+tevent_set_debug_stderr: int (struct tevent_context *)
+tevent_set_default_backend: void (const char *)
+tevent_set_trace_callback: void (struct tevent_context *, tevent_trace_callback_t, void *)
+tevent_set_trace_fd_callback: void (struct tevent_context *, tevent_trace_fd_callback_t, void *)
+tevent_set_trace_immediate_callback: void (struct tevent_context *, tevent_trace_immediate_callback_t, void *)
+tevent_set_trace_queue_callback: void (struct tevent_context *, tevent_trace_queue_callback_t, void *)
+tevent_set_trace_signal_callback: void (struct tevent_context *, tevent_trace_signal_callback_t, void *)
+tevent_set_trace_timer_callback: void (struct tevent_context *, tevent_trace_timer_callback_t, void *)
+tevent_signal_get_tag: uint64_t (const struct tevent_signal *)
+tevent_signal_set_tag: void (struct tevent_signal *, uint64_t)
+tevent_signal_support: bool (struct tevent_context *)
+tevent_thread_proxy_create: struct tevent_thread_proxy *(struct tevent_context *)
+tevent_thread_proxy_schedule: void (struct tevent_thread_proxy *, struct tevent_immediate **, tevent_immediate_handler_t, void *)
+tevent_threaded_context_create: struct tevent_threaded_context *(TALLOC_CTX *, struct tevent_context *)
+tevent_timer_get_tag: uint64_t (const struct tevent_timer *)
+tevent_timer_set_tag: void (struct tevent_timer *, uint64_t)
+tevent_timeval_add: struct timeval (const struct timeval *, uint32_t, uint32_t)
+tevent_timeval_compare: int (const struct timeval *, const struct timeval *)
+tevent_timeval_current: struct timeval (void)
+tevent_timeval_current_ofs: struct timeval (uint32_t, uint32_t)
+tevent_timeval_is_zero: bool (const struct timeval *)
+tevent_timeval_set: struct timeval (uint32_t, uint32_t)
+tevent_timeval_until: struct timeval (const struct timeval *, const struct timeval *)
+tevent_timeval_zero: struct timeval (void)
+tevent_trace_fd_callback: void (struct tevent_context *, struct tevent_fd *, enum tevent_event_trace_point)
+tevent_trace_immediate_callback: void (struct tevent_context *, struct tevent_immediate *, enum tevent_event_trace_point)
+tevent_trace_point_callback: void (struct tevent_context *, enum tevent_trace_point)
+tevent_trace_queue_callback: void (struct tevent_context *, struct tevent_queue_entry *, enum tevent_event_trace_point)
+tevent_trace_signal_callback: void (struct tevent_context *, struct tevent_signal *, enum tevent_event_trace_point)
+tevent_trace_timer_callback: void (struct tevent_context *, struct tevent_timer *, enum tevent_event_trace_point)
+tevent_update_timer: void (struct tevent_timer *, struct timeval)
+tevent_wakeup_recv: bool (struct tevent_req *)
+tevent_wakeup_send: struct tevent_req *(TALLOC_CTX *, struct tevent_context *, struct timeval)
diff --git a/lib/tevent/ABI/tevent-0.13.0.sigs b/lib/tevent/ABI/tevent-0.13.0.sigs
new file mode 100644
index 0000000..68722a0
--- /dev/null
+++ b/lib/tevent/ABI/tevent-0.13.0.sigs
@@ -0,0 +1,152 @@
+_tevent_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+_tevent_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+_tevent_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+_tevent_context_pop_use: void (struct tevent_context *, const char *)
+_tevent_context_push_use: bool (struct tevent_context *, const char *)
+_tevent_context_wrapper_create: struct tevent_context *(struct tevent_context *, TALLOC_CTX *, const struct tevent_wrapper_ops *, void *, size_t, const char *, const char *)
+_tevent_create_immediate: struct tevent_immediate *(TALLOC_CTX *, const char *)
+_tevent_loop_once: int (struct tevent_context *, const char *)
+_tevent_loop_until: int (struct tevent_context *, bool (*)(void *), void *, const char *)
+_tevent_loop_wait: int (struct tevent_context *, const char *)
+_tevent_queue_create: struct tevent_queue *(TALLOC_CTX *, const char *, const char *)
+_tevent_req_callback_data: void *(struct tevent_req *)
+_tevent_req_cancel: bool (struct tevent_req *, const char *)
+_tevent_req_create: struct tevent_req *(TALLOC_CTX *, void *, size_t, const char *, const char *)
+_tevent_req_data: void *(struct tevent_req *)
+_tevent_req_done: void (struct tevent_req *, const char *)
+_tevent_req_error: bool (struct tevent_req *, uint64_t, const char *)
+_tevent_req_nomem: bool (const void *, struct tevent_req *, const char *)
+_tevent_req_notify_callback: void (struct tevent_req *, const char *)
+_tevent_req_oom: void (struct tevent_req *, const char *)
+_tevent_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+_tevent_threaded_schedule_immediate: void (struct tevent_threaded_context *, struct tevent_immediate *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_abort: void (struct tevent_context *, const char *)
+tevent_backend_list: const char **(TALLOC_CTX *)
+tevent_cached_getpid: pid_t (void)
+tevent_cleanup_pending_signal_handlers: void (struct tevent_signal *)
+tevent_common_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+tevent_common_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+tevent_common_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+tevent_common_add_timer_v2: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+tevent_common_check_double_free: void (TALLOC_CTX *, const char *)
+tevent_common_check_signal: int (struct tevent_context *)
+tevent_common_context_destructor: int (struct tevent_context *)
+tevent_common_fd_destructor: int (struct tevent_fd *)
+tevent_common_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_common_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_common_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_common_have_events: bool (struct tevent_context *)
+tevent_common_invoke_fd_handler: int (struct tevent_fd *, uint16_t, bool *)
+tevent_common_invoke_immediate_handler: int (struct tevent_immediate *, bool *)
+tevent_common_invoke_signal_handler: int (struct tevent_signal *, int, int, void *, bool *)
+tevent_common_invoke_timer_handler: int (struct tevent_timer *, struct timeval, bool *)
+tevent_common_loop_immediate: bool (struct tevent_context *)
+tevent_common_loop_timer_delay: struct timeval (struct tevent_context *)
+tevent_common_loop_wait: int (struct tevent_context *, const char *)
+tevent_common_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_common_threaded_activate_immediate: void (struct tevent_context *)
+tevent_common_wakeup: int (struct tevent_context *)
+tevent_common_wakeup_fd: int (int)
+tevent_common_wakeup_init: int (struct tevent_context *)
+tevent_context_init: struct tevent_context *(TALLOC_CTX *)
+tevent_context_init_byname: struct tevent_context *(TALLOC_CTX *, const char *)
+tevent_context_init_ops: struct tevent_context *(TALLOC_CTX *, const struct tevent_ops *, void *)
+tevent_context_is_wrapper: bool (struct tevent_context *)
+tevent_context_same_loop: bool (struct tevent_context *, struct tevent_context *)
+tevent_debug: void (struct tevent_context *, enum tevent_debug_level, const char *, ...)
+tevent_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_fd_get_tag: uint64_t (const struct tevent_fd *)
+tevent_fd_set_auto_close: void (struct tevent_fd *)
+tevent_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_fd_set_tag: void (struct tevent_fd *, uint64_t)
+tevent_get_trace_callback: void (struct tevent_context *, tevent_trace_callback_t *, void *)
+tevent_get_trace_fd_callback: void (struct tevent_context *, tevent_trace_fd_callback_t *, void *)
+tevent_get_trace_immediate_callback: void (struct tevent_context *, tevent_trace_immediate_callback_t *, void *)
+tevent_get_trace_queue_callback: void (struct tevent_context *, tevent_trace_queue_callback_t *, void *)
+tevent_get_trace_signal_callback: void (struct tevent_context *, tevent_trace_signal_callback_t *, void *)
+tevent_get_trace_timer_callback: void (struct tevent_context *, tevent_trace_timer_callback_t *, void *)
+tevent_immediate_get_tag: uint64_t (const struct tevent_immediate *)
+tevent_immediate_set_tag: void (struct tevent_immediate *, uint64_t)
+tevent_loop_allow_nesting: void (struct tevent_context *)
+tevent_loop_set_nesting_hook: void (struct tevent_context *, tevent_nesting_hook, void *)
+tevent_num_signals: size_t (void)
+tevent_queue_add: bool (struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_add_entry: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_add_optimize_empty: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_entry_get_tag: uint64_t (const struct tevent_queue_entry *)
+tevent_queue_entry_set_tag: void (struct tevent_queue_entry *, uint64_t)
+tevent_queue_entry_untrigger: void (struct tevent_queue_entry *)
+tevent_queue_length: size_t (struct tevent_queue *)
+tevent_queue_running: bool (struct tevent_queue *)
+tevent_queue_start: void (struct tevent_queue *)
+tevent_queue_stop: void (struct tevent_queue *)
+tevent_queue_wait_recv: bool (struct tevent_req *)
+tevent_queue_wait_send: struct tevent_req *(TALLOC_CTX *, struct tevent_context *, struct tevent_queue *)
+tevent_re_initialise: int (struct tevent_context *)
+tevent_register_backend: bool (const char *, const struct tevent_ops *)
+tevent_req_default_print: char *(struct tevent_req *, TALLOC_CTX *)
+tevent_req_defer_callback: void (struct tevent_req *, struct tevent_context *)
+tevent_req_get_profile: const struct tevent_req_profile *(struct tevent_req *)
+tevent_req_is_error: bool (struct tevent_req *, enum tevent_req_state *, uint64_t *)
+tevent_req_is_in_progress: bool (struct tevent_req *)
+tevent_req_move_profile: struct tevent_req_profile *(struct tevent_req *, TALLOC_CTX *)
+tevent_req_poll: bool (struct tevent_req *, struct tevent_context *)
+tevent_req_post: struct tevent_req *(struct tevent_req *, struct tevent_context *)
+tevent_req_print: char *(TALLOC_CTX *, struct tevent_req *)
+tevent_req_profile_append_sub: void (struct tevent_req_profile *, struct tevent_req_profile **)
+tevent_req_profile_create: struct tevent_req_profile *(TALLOC_CTX *)
+tevent_req_profile_get_name: void (const struct tevent_req_profile *, const char **)
+tevent_req_profile_get_start: void (const struct tevent_req_profile *, const char **, struct timeval *)
+tevent_req_profile_get_status: void (const struct tevent_req_profile *, pid_t *, enum tevent_req_state *, uint64_t *)
+tevent_req_profile_get_stop: void (const struct tevent_req_profile *, const char **, struct timeval *)
+tevent_req_profile_get_subprofiles: const struct tevent_req_profile *(const struct tevent_req_profile *)
+tevent_req_profile_next: const struct tevent_req_profile *(const struct tevent_req_profile *)
+tevent_req_profile_set_name: bool (struct tevent_req_profile *, const char *)
+tevent_req_profile_set_start: bool (struct tevent_req_profile *, const char *, struct timeval)
+tevent_req_profile_set_status: void (struct tevent_req_profile *, pid_t, enum tevent_req_state, uint64_t)
+tevent_req_profile_set_stop: bool (struct tevent_req_profile *, const char *, struct timeval)
+tevent_req_received: void (struct tevent_req *)
+tevent_req_reset_endtime: void (struct tevent_req *)
+tevent_req_set_callback: void (struct tevent_req *, tevent_req_fn, void *)
+tevent_req_set_cancel_fn: void (struct tevent_req *, tevent_req_cancel_fn)
+tevent_req_set_cleanup_fn: void (struct tevent_req *, tevent_req_cleanup_fn)
+tevent_req_set_endtime: bool (struct tevent_req *, struct tevent_context *, struct timeval)
+tevent_req_set_print_fn: void (struct tevent_req *, tevent_req_print_fn)
+tevent_req_set_profile: bool (struct tevent_req *)
+tevent_sa_info_queue_count: size_t (void)
+tevent_set_abort_fn: void (void (*)(const char *))
+tevent_set_debug: int (struct tevent_context *, void (*)(void *, enum tevent_debug_level, const char *, va_list), void *)
+tevent_set_debug_stderr: int (struct tevent_context *)
+tevent_set_default_backend: void (const char *)
+tevent_set_trace_callback: void (struct tevent_context *, tevent_trace_callback_t, void *)
+tevent_set_trace_fd_callback: void (struct tevent_context *, tevent_trace_fd_callback_t, void *)
+tevent_set_trace_immediate_callback: void (struct tevent_context *, tevent_trace_immediate_callback_t, void *)
+tevent_set_trace_queue_callback: void (struct tevent_context *, tevent_trace_queue_callback_t, void *)
+tevent_set_trace_signal_callback: void (struct tevent_context *, tevent_trace_signal_callback_t, void *)
+tevent_set_trace_timer_callback: void (struct tevent_context *, tevent_trace_timer_callback_t, void *)
+tevent_signal_get_tag: uint64_t (const struct tevent_signal *)
+tevent_signal_set_tag: void (struct tevent_signal *, uint64_t)
+tevent_signal_support: bool (struct tevent_context *)
+tevent_thread_proxy_create: struct tevent_thread_proxy *(struct tevent_context *)
+tevent_thread_proxy_schedule: void (struct tevent_thread_proxy *, struct tevent_immediate **, tevent_immediate_handler_t, void *)
+tevent_threaded_context_create: struct tevent_threaded_context *(TALLOC_CTX *, struct tevent_context *)
+tevent_timer_get_tag: uint64_t (const struct tevent_timer *)
+tevent_timer_set_tag: void (struct tevent_timer *, uint64_t)
+tevent_timeval_add: struct timeval (const struct timeval *, uint32_t, uint32_t)
+tevent_timeval_compare: int (const struct timeval *, const struct timeval *)
+tevent_timeval_current: struct timeval (void)
+tevent_timeval_current_ofs: struct timeval (uint32_t, uint32_t)
+tevent_timeval_is_zero: bool (const struct timeval *)
+tevent_timeval_set: struct timeval (uint32_t, uint32_t)
+tevent_timeval_until: struct timeval (const struct timeval *, const struct timeval *)
+tevent_timeval_zero: struct timeval (void)
+tevent_trace_fd_callback: void (struct tevent_context *, struct tevent_fd *, enum tevent_event_trace_point)
+tevent_trace_immediate_callback: void (struct tevent_context *, struct tevent_immediate *, enum tevent_event_trace_point)
+tevent_trace_point_callback: void (struct tevent_context *, enum tevent_trace_point)
+tevent_trace_queue_callback: void (struct tevent_context *, struct tevent_queue_entry *, enum tevent_event_trace_point)
+tevent_trace_signal_callback: void (struct tevent_context *, struct tevent_signal *, enum tevent_event_trace_point)
+tevent_trace_timer_callback: void (struct tevent_context *, struct tevent_timer *, enum tevent_event_trace_point)
+tevent_update_timer: void (struct tevent_timer *, struct timeval)
+tevent_wakeup_recv: bool (struct tevent_req *)
+tevent_wakeup_send: struct tevent_req *(TALLOC_CTX *, struct tevent_context *, struct timeval)
diff --git a/lib/tevent/ABI/tevent-0.9.10.sigs b/lib/tevent/ABI/tevent-0.9.10.sigs
new file mode 100644
index 0000000..9adaba5
--- /dev/null
+++ b/lib/tevent/ABI/tevent-0.9.10.sigs
@@ -0,0 +1,73 @@
+_tevent_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+_tevent_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+_tevent_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+_tevent_create_immediate: struct tevent_immediate *(TALLOC_CTX *, const char *)
+_tevent_loop_once: int (struct tevent_context *, const char *)
+_tevent_loop_until: int (struct tevent_context *, bool (*)(void *), void *, const char *)
+_tevent_loop_wait: int (struct tevent_context *, const char *)
+_tevent_queue_create: struct tevent_queue *(TALLOC_CTX *, const char *, const char *)
+_tevent_req_callback_data: void *(struct tevent_req *)
+_tevent_req_cancel: bool (struct tevent_req *, const char *)
+_tevent_req_create: struct tevent_req *(TALLOC_CTX *, void *, size_t, const char *, const char *)
+_tevent_req_data: void *(struct tevent_req *)
+_tevent_req_done: void (struct tevent_req *, const char *)
+_tevent_req_error: bool (struct tevent_req *, uint64_t, const char *)
+_tevent_req_nomem: bool (const void *, struct tevent_req *, const char *)
+_tevent_req_notify_callback: void (struct tevent_req *, const char *)
+_tevent_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_backend_list: const char **(TALLOC_CTX *)
+tevent_cleanup_pending_signal_handlers: void (struct tevent_signal *)
+tevent_common_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+tevent_common_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+tevent_common_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+tevent_common_check_signal: int (struct tevent_context *)
+tevent_common_context_destructor: int (struct tevent_context *)
+tevent_common_fd_destructor: int (struct tevent_fd *)
+tevent_common_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_common_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_common_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_common_loop_immediate: bool (struct tevent_context *)
+tevent_common_loop_timer_delay: struct timeval (struct tevent_context *)
+tevent_common_loop_wait: int (struct tevent_context *, const char *)
+tevent_common_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_context_init: struct tevent_context *(TALLOC_CTX *)
+tevent_context_init_byname: struct tevent_context *(TALLOC_CTX *, const char *)
+tevent_debug: void (struct tevent_context *, enum tevent_debug_level, const char *, ...)
+tevent_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_fd_set_auto_close: void (struct tevent_fd *)
+tevent_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_loop_allow_nesting: void (struct tevent_context *)
+tevent_loop_set_nesting_hook: void (struct tevent_context *, tevent_nesting_hook, void *)
+tevent_queue_add: bool (struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_length: size_t (struct tevent_queue *)
+tevent_queue_start: void (struct tevent_queue *)
+tevent_queue_stop: void (struct tevent_queue *)
+tevent_re_initialise: int (struct tevent_context *)
+tevent_register_backend: bool (const char *, const struct tevent_ops *)
+tevent_req_default_print: char *(struct tevent_req *, TALLOC_CTX *)
+tevent_req_is_error: bool (struct tevent_req *, enum tevent_req_state *, uint64_t *)
+tevent_req_is_in_progress: bool (struct tevent_req *)
+tevent_req_poll: bool (struct tevent_req *, struct tevent_context *)
+tevent_req_post: struct tevent_req *(struct tevent_req *, struct tevent_context *)
+tevent_req_print: char *(TALLOC_CTX *, struct tevent_req *)
+tevent_req_received: void (struct tevent_req *)
+tevent_req_set_callback: void (struct tevent_req *, tevent_req_fn, void *)
+tevent_req_set_cancel_fn: void (struct tevent_req *, tevent_req_cancel_fn)
+tevent_req_set_endtime: bool (struct tevent_req *, struct tevent_context *, struct timeval)
+tevent_req_set_print_fn: void (struct tevent_req *, tevent_req_print_fn)
+tevent_set_abort_fn: void (void (*)(const char *))
+tevent_set_debug: int (struct tevent_context *, void (*)(void *, enum tevent_debug_level, const char *, va_list), void *)
+tevent_set_debug_stderr: int (struct tevent_context *)
+tevent_set_default_backend: void (const char *)
+tevent_signal_support: bool (struct tevent_context *)
+tevent_timeval_add: struct timeval (const struct timeval *, uint32_t, uint32_t)
+tevent_timeval_compare: int (const struct timeval *, const struct timeval *)
+tevent_timeval_current: struct timeval (void)
+tevent_timeval_current_ofs: struct timeval (uint32_t, uint32_t)
+tevent_timeval_is_zero: bool (const struct timeval *)
+tevent_timeval_set: struct timeval (uint32_t, uint32_t)
+tevent_timeval_until: struct timeval (const struct timeval *, const struct timeval *)
+tevent_timeval_zero: struct timeval (void)
+tevent_wakeup_recv: bool (struct tevent_req *)
+tevent_wakeup_send: struct tevent_req *(TALLOC_CTX *, struct tevent_context *, struct timeval)
diff --git a/lib/tevent/ABI/tevent-0.9.11.sigs b/lib/tevent/ABI/tevent-0.9.11.sigs
new file mode 100644
index 0000000..9adaba5
--- /dev/null
+++ b/lib/tevent/ABI/tevent-0.9.11.sigs
@@ -0,0 +1,73 @@
+_tevent_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+_tevent_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+_tevent_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+_tevent_create_immediate: struct tevent_immediate *(TALLOC_CTX *, const char *)
+_tevent_loop_once: int (struct tevent_context *, const char *)
+_tevent_loop_until: int (struct tevent_context *, bool (*)(void *), void *, const char *)
+_tevent_loop_wait: int (struct tevent_context *, const char *)
+_tevent_queue_create: struct tevent_queue *(TALLOC_CTX *, const char *, const char *)
+_tevent_req_callback_data: void *(struct tevent_req *)
+_tevent_req_cancel: bool (struct tevent_req *, const char *)
+_tevent_req_create: struct tevent_req *(TALLOC_CTX *, void *, size_t, const char *, const char *)
+_tevent_req_data: void *(struct tevent_req *)
+_tevent_req_done: void (struct tevent_req *, const char *)
+_tevent_req_error: bool (struct tevent_req *, uint64_t, const char *)
+_tevent_req_nomem: bool (const void *, struct tevent_req *, const char *)
+_tevent_req_notify_callback: void (struct tevent_req *, const char *)
+_tevent_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_backend_list: const char **(TALLOC_CTX *)
+tevent_cleanup_pending_signal_handlers: void (struct tevent_signal *)
+tevent_common_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+tevent_common_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+tevent_common_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+tevent_common_check_signal: int (struct tevent_context *)
+tevent_common_context_destructor: int (struct tevent_context *)
+tevent_common_fd_destructor: int (struct tevent_fd *)
+tevent_common_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_common_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_common_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_common_loop_immediate: bool (struct tevent_context *)
+tevent_common_loop_timer_delay: struct timeval (struct tevent_context *)
+tevent_common_loop_wait: int (struct tevent_context *, const char *)
+tevent_common_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_context_init: struct tevent_context *(TALLOC_CTX *)
+tevent_context_init_byname: struct tevent_context *(TALLOC_CTX *, const char *)
+tevent_debug: void (struct tevent_context *, enum tevent_debug_level, const char *, ...)
+tevent_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_fd_set_auto_close: void (struct tevent_fd *)
+tevent_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_loop_allow_nesting: void (struct tevent_context *)
+tevent_loop_set_nesting_hook: void (struct tevent_context *, tevent_nesting_hook, void *)
+tevent_queue_add: bool (struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_length: size_t (struct tevent_queue *)
+tevent_queue_start: void (struct tevent_queue *)
+tevent_queue_stop: void (struct tevent_queue *)
+tevent_re_initialise: int (struct tevent_context *)
+tevent_register_backend: bool (const char *, const struct tevent_ops *)
+tevent_req_default_print: char *(struct tevent_req *, TALLOC_CTX *)
+tevent_req_is_error: bool (struct tevent_req *, enum tevent_req_state *, uint64_t *)
+tevent_req_is_in_progress: bool (struct tevent_req *)
+tevent_req_poll: bool (struct tevent_req *, struct tevent_context *)
+tevent_req_post: struct tevent_req *(struct tevent_req *, struct tevent_context *)
+tevent_req_print: char *(TALLOC_CTX *, struct tevent_req *)
+tevent_req_received: void (struct tevent_req *)
+tevent_req_set_callback: void (struct tevent_req *, tevent_req_fn, void *)
+tevent_req_set_cancel_fn: void (struct tevent_req *, tevent_req_cancel_fn)
+tevent_req_set_endtime: bool (struct tevent_req *, struct tevent_context *, struct timeval)
+tevent_req_set_print_fn: void (struct tevent_req *, tevent_req_print_fn)
+tevent_set_abort_fn: void (void (*)(const char *))
+tevent_set_debug: int (struct tevent_context *, void (*)(void *, enum tevent_debug_level, const char *, va_list), void *)
+tevent_set_debug_stderr: int (struct tevent_context *)
+tevent_set_default_backend: void (const char *)
+tevent_signal_support: bool (struct tevent_context *)
+tevent_timeval_add: struct timeval (const struct timeval *, uint32_t, uint32_t)
+tevent_timeval_compare: int (const struct timeval *, const struct timeval *)
+tevent_timeval_current: struct timeval (void)
+tevent_timeval_current_ofs: struct timeval (uint32_t, uint32_t)
+tevent_timeval_is_zero: bool (const struct timeval *)
+tevent_timeval_set: struct timeval (uint32_t, uint32_t)
+tevent_timeval_until: struct timeval (const struct timeval *, const struct timeval *)
+tevent_timeval_zero: struct timeval (void)
+tevent_wakeup_recv: bool (struct tevent_req *)
+tevent_wakeup_send: struct tevent_req *(TALLOC_CTX *, struct tevent_context *, struct timeval)
diff --git a/lib/tevent/ABI/tevent-0.9.12.sigs b/lib/tevent/ABI/tevent-0.9.12.sigs
new file mode 100644
index 0000000..df9b08d
--- /dev/null
+++ b/lib/tevent/ABI/tevent-0.9.12.sigs
@@ -0,0 +1,74 @@
+_tevent_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+_tevent_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+_tevent_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+_tevent_create_immediate: struct tevent_immediate *(TALLOC_CTX *, const char *)
+_tevent_loop_once: int (struct tevent_context *, const char *)
+_tevent_loop_until: int (struct tevent_context *, bool (*)(void *), void *, const char *)
+_tevent_loop_wait: int (struct tevent_context *, const char *)
+_tevent_queue_create: struct tevent_queue *(TALLOC_CTX *, const char *, const char *)
+_tevent_req_callback_data: void *(struct tevent_req *)
+_tevent_req_cancel: bool (struct tevent_req *, const char *)
+_tevent_req_create: struct tevent_req *(TALLOC_CTX *, void *, size_t, const char *, const char *)
+_tevent_req_data: void *(struct tevent_req *)
+_tevent_req_done: void (struct tevent_req *, const char *)
+_tevent_req_error: bool (struct tevent_req *, uint64_t, const char *)
+_tevent_req_nomem: bool (const void *, struct tevent_req *, const char *)
+_tevent_req_notify_callback: void (struct tevent_req *, const char *)
+_tevent_req_oom: void (struct tevent_req *, const char *)
+_tevent_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_backend_list: const char **(TALLOC_CTX *)
+tevent_cleanup_pending_signal_handlers: void (struct tevent_signal *)
+tevent_common_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+tevent_common_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+tevent_common_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+tevent_common_check_signal: int (struct tevent_context *)
+tevent_common_context_destructor: int (struct tevent_context *)
+tevent_common_fd_destructor: int (struct tevent_fd *)
+tevent_common_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_common_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_common_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_common_loop_immediate: bool (struct tevent_context *)
+tevent_common_loop_timer_delay: struct timeval (struct tevent_context *)
+tevent_common_loop_wait: int (struct tevent_context *, const char *)
+tevent_common_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_context_init: struct tevent_context *(TALLOC_CTX *)
+tevent_context_init_byname: struct tevent_context *(TALLOC_CTX *, const char *)
+tevent_debug: void (struct tevent_context *, enum tevent_debug_level, const char *, ...)
+tevent_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_fd_set_auto_close: void (struct tevent_fd *)
+tevent_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_loop_allow_nesting: void (struct tevent_context *)
+tevent_loop_set_nesting_hook: void (struct tevent_context *, tevent_nesting_hook, void *)
+tevent_queue_add: bool (struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_length: size_t (struct tevent_queue *)
+tevent_queue_start: void (struct tevent_queue *)
+tevent_queue_stop: void (struct tevent_queue *)
+tevent_re_initialise: int (struct tevent_context *)
+tevent_register_backend: bool (const char *, const struct tevent_ops *)
+tevent_req_default_print: char *(struct tevent_req *, TALLOC_CTX *)
+tevent_req_is_error: bool (struct tevent_req *, enum tevent_req_state *, uint64_t *)
+tevent_req_is_in_progress: bool (struct tevent_req *)
+tevent_req_poll: bool (struct tevent_req *, struct tevent_context *)
+tevent_req_post: struct tevent_req *(struct tevent_req *, struct tevent_context *)
+tevent_req_print: char *(TALLOC_CTX *, struct tevent_req *)
+tevent_req_received: void (struct tevent_req *)
+tevent_req_set_callback: void (struct tevent_req *, tevent_req_fn, void *)
+tevent_req_set_cancel_fn: void (struct tevent_req *, tevent_req_cancel_fn)
+tevent_req_set_endtime: bool (struct tevent_req *, struct tevent_context *, struct timeval)
+tevent_req_set_print_fn: void (struct tevent_req *, tevent_req_print_fn)
+tevent_set_abort_fn: void (void (*)(const char *))
+tevent_set_debug: int (struct tevent_context *, void (*)(void *, enum tevent_debug_level, const char *, va_list), void *)
+tevent_set_debug_stderr: int (struct tevent_context *)
+tevent_set_default_backend: void (const char *)
+tevent_signal_support: bool (struct tevent_context *)
+tevent_timeval_add: struct timeval (const struct timeval *, uint32_t, uint32_t)
+tevent_timeval_compare: int (const struct timeval *, const struct timeval *)
+tevent_timeval_current: struct timeval (void)
+tevent_timeval_current_ofs: struct timeval (uint32_t, uint32_t)
+tevent_timeval_is_zero: bool (const struct timeval *)
+tevent_timeval_set: struct timeval (uint32_t, uint32_t)
+tevent_timeval_until: struct timeval (const struct timeval *, const struct timeval *)
+tevent_timeval_zero: struct timeval (void)
+tevent_wakeup_recv: bool (struct tevent_req *)
+tevent_wakeup_send: struct tevent_req *(TALLOC_CTX *, struct tevent_context *, struct timeval)
diff --git a/lib/tevent/ABI/tevent-0.9.13.sigs b/lib/tevent/ABI/tevent-0.9.13.sigs
new file mode 100644
index 0000000..888ca0e
--- /dev/null
+++ b/lib/tevent/ABI/tevent-0.9.13.sigs
@@ -0,0 +1,75 @@
+_tevent_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+_tevent_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+_tevent_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+_tevent_create_immediate: struct tevent_immediate *(TALLOC_CTX *, const char *)
+_tevent_loop_once: int (struct tevent_context *, const char *)
+_tevent_loop_until: int (struct tevent_context *, bool (*)(void *), void *, const char *)
+_tevent_loop_wait: int (struct tevent_context *, const char *)
+_tevent_queue_create: struct tevent_queue *(TALLOC_CTX *, const char *, const char *)
+_tevent_req_callback_data: void *(struct tevent_req *)
+_tevent_req_cancel: bool (struct tevent_req *, const char *)
+_tevent_req_create: struct tevent_req *(TALLOC_CTX *, void *, size_t, const char *, const char *)
+_tevent_req_data: void *(struct tevent_req *)
+_tevent_req_done: void (struct tevent_req *, const char *)
+_tevent_req_error: bool (struct tevent_req *, uint64_t, const char *)
+_tevent_req_nomem: bool (const void *, struct tevent_req *, const char *)
+_tevent_req_notify_callback: void (struct tevent_req *, const char *)
+_tevent_req_oom: void (struct tevent_req *, const char *)
+_tevent_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_backend_list: const char **(TALLOC_CTX *)
+tevent_cleanup_pending_signal_handlers: void (struct tevent_signal *)
+tevent_common_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+tevent_common_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+tevent_common_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+tevent_common_check_signal: int (struct tevent_context *)
+tevent_common_context_destructor: int (struct tevent_context *)
+tevent_common_fd_destructor: int (struct tevent_fd *)
+tevent_common_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_common_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_common_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_common_loop_immediate: bool (struct tevent_context *)
+tevent_common_loop_timer_delay: struct timeval (struct tevent_context *)
+tevent_common_loop_wait: int (struct tevent_context *, const char *)
+tevent_common_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_context_init: struct tevent_context *(TALLOC_CTX *)
+tevent_context_init_byname: struct tevent_context *(TALLOC_CTX *, const char *)
+tevent_debug: void (struct tevent_context *, enum tevent_debug_level, const char *, ...)
+tevent_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_fd_set_auto_close: void (struct tevent_fd *)
+tevent_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_loop_allow_nesting: void (struct tevent_context *)
+tevent_loop_set_nesting_hook: void (struct tevent_context *, tevent_nesting_hook, void *)
+tevent_queue_add: bool (struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_length: size_t (struct tevent_queue *)
+tevent_queue_start: void (struct tevent_queue *)
+tevent_queue_stop: void (struct tevent_queue *)
+tevent_re_initialise: int (struct tevent_context *)
+tevent_register_backend: bool (const char *, const struct tevent_ops *)
+tevent_req_default_print: char *(struct tevent_req *, TALLOC_CTX *)
+tevent_req_defer_callback: void (struct tevent_req *, struct tevent_context *)
+tevent_req_is_error: bool (struct tevent_req *, enum tevent_req_state *, uint64_t *)
+tevent_req_is_in_progress: bool (struct tevent_req *)
+tevent_req_poll: bool (struct tevent_req *, struct tevent_context *)
+tevent_req_post: struct tevent_req *(struct tevent_req *, struct tevent_context *)
+tevent_req_print: char *(TALLOC_CTX *, struct tevent_req *)
+tevent_req_received: void (struct tevent_req *)
+tevent_req_set_callback: void (struct tevent_req *, tevent_req_fn, void *)
+tevent_req_set_cancel_fn: void (struct tevent_req *, tevent_req_cancel_fn)
+tevent_req_set_endtime: bool (struct tevent_req *, struct tevent_context *, struct timeval)
+tevent_req_set_print_fn: void (struct tevent_req *, tevent_req_print_fn)
+tevent_set_abort_fn: void (void (*)(const char *))
+tevent_set_debug: int (struct tevent_context *, void (*)(void *, enum tevent_debug_level, const char *, va_list), void *)
+tevent_set_debug_stderr: int (struct tevent_context *)
+tevent_set_default_backend: void (const char *)
+tevent_signal_support: bool (struct tevent_context *)
+tevent_timeval_add: struct timeval (const struct timeval *, uint32_t, uint32_t)
+tevent_timeval_compare: int (const struct timeval *, const struct timeval *)
+tevent_timeval_current: struct timeval (void)
+tevent_timeval_current_ofs: struct timeval (uint32_t, uint32_t)
+tevent_timeval_is_zero: bool (const struct timeval *)
+tevent_timeval_set: struct timeval (uint32_t, uint32_t)
+tevent_timeval_until: struct timeval (const struct timeval *, const struct timeval *)
+tevent_timeval_zero: struct timeval (void)
+tevent_wakeup_recv: bool (struct tevent_req *)
+tevent_wakeup_send: struct tevent_req *(TALLOC_CTX *, struct tevent_context *, struct timeval)
diff --git a/lib/tevent/ABI/tevent-0.9.14.sigs b/lib/tevent/ABI/tevent-0.9.14.sigs
new file mode 100644
index 0000000..13c461c
--- /dev/null
+++ b/lib/tevent/ABI/tevent-0.9.14.sigs
@@ -0,0 +1,78 @@
+_tevent_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+_tevent_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+_tevent_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+_tevent_create_immediate: struct tevent_immediate *(TALLOC_CTX *, const char *)
+_tevent_loop_once: int (struct tevent_context *, const char *)
+_tevent_loop_until: int (struct tevent_context *, bool (*)(void *), void *, const char *)
+_tevent_loop_wait: int (struct tevent_context *, const char *)
+_tevent_queue_create: struct tevent_queue *(TALLOC_CTX *, const char *, const char *)
+_tevent_req_callback_data: void *(struct tevent_req *)
+_tevent_req_cancel: bool (struct tevent_req *, const char *)
+_tevent_req_create: struct tevent_req *(TALLOC_CTX *, void *, size_t, const char *, const char *)
+_tevent_req_data: void *(struct tevent_req *)
+_tevent_req_done: void (struct tevent_req *, const char *)
+_tevent_req_error: bool (struct tevent_req *, uint64_t, const char *)
+_tevent_req_nomem: bool (const void *, struct tevent_req *, const char *)
+_tevent_req_notify_callback: void (struct tevent_req *, const char *)
+_tevent_req_oom: void (struct tevent_req *, const char *)
+_tevent_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_backend_list: const char **(TALLOC_CTX *)
+tevent_cleanup_pending_signal_handlers: void (struct tevent_signal *)
+tevent_common_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+tevent_common_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+tevent_common_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+tevent_common_check_signal: int (struct tevent_context *)
+tevent_common_context_destructor: int (struct tevent_context *)
+tevent_common_fd_destructor: int (struct tevent_fd *)
+tevent_common_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_common_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_common_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_common_loop_immediate: bool (struct tevent_context *)
+tevent_common_loop_timer_delay: struct timeval (struct tevent_context *)
+tevent_common_loop_wait: int (struct tevent_context *, const char *)
+tevent_common_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_context_init: struct tevent_context *(TALLOC_CTX *)
+tevent_context_init_byname: struct tevent_context *(TALLOC_CTX *, const char *)
+tevent_debug: void (struct tevent_context *, enum tevent_debug_level, const char *, ...)
+tevent_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_fd_set_auto_close: void (struct tevent_fd *)
+tevent_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_loop_allow_nesting: void (struct tevent_context *)
+tevent_loop_set_nesting_hook: void (struct tevent_context *, tevent_nesting_hook, void *)
+tevent_queue_add: bool (struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_add_entry: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_add_optimize_empty: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_length: size_t (struct tevent_queue *)
+tevent_queue_running: bool (struct tevent_queue *)
+tevent_queue_start: void (struct tevent_queue *)
+tevent_queue_stop: void (struct tevent_queue *)
+tevent_re_initialise: int (struct tevent_context *)
+tevent_register_backend: bool (const char *, const struct tevent_ops *)
+tevent_req_default_print: char *(struct tevent_req *, TALLOC_CTX *)
+tevent_req_defer_callback: void (struct tevent_req *, struct tevent_context *)
+tevent_req_is_error: bool (struct tevent_req *, enum tevent_req_state *, uint64_t *)
+tevent_req_is_in_progress: bool (struct tevent_req *)
+tevent_req_poll: bool (struct tevent_req *, struct tevent_context *)
+tevent_req_post: struct tevent_req *(struct tevent_req *, struct tevent_context *)
+tevent_req_print: char *(TALLOC_CTX *, struct tevent_req *)
+tevent_req_received: void (struct tevent_req *)
+tevent_req_set_callback: void (struct tevent_req *, tevent_req_fn, void *)
+tevent_req_set_cancel_fn: void (struct tevent_req *, tevent_req_cancel_fn)
+tevent_req_set_endtime: bool (struct tevent_req *, struct tevent_context *, struct timeval)
+tevent_req_set_print_fn: void (struct tevent_req *, tevent_req_print_fn)
+tevent_set_abort_fn: void (void (*)(const char *))
+tevent_set_debug: int (struct tevent_context *, void (*)(void *, enum tevent_debug_level, const char *, va_list), void *)
+tevent_set_debug_stderr: int (struct tevent_context *)
+tevent_set_default_backend: void (const char *)
+tevent_signal_support: bool (struct tevent_context *)
+tevent_timeval_add: struct timeval (const struct timeval *, uint32_t, uint32_t)
+tevent_timeval_compare: int (const struct timeval *, const struct timeval *)
+tevent_timeval_current: struct timeval (void)
+tevent_timeval_current_ofs: struct timeval (uint32_t, uint32_t)
+tevent_timeval_is_zero: bool (const struct timeval *)
+tevent_timeval_set: struct timeval (uint32_t, uint32_t)
+tevent_timeval_until: struct timeval (const struct timeval *, const struct timeval *)
+tevent_timeval_zero: struct timeval (void)
+tevent_wakeup_recv: bool (struct tevent_req *)
+tevent_wakeup_send: struct tevent_req *(TALLOC_CTX *, struct tevent_context *, struct timeval)
diff --git a/lib/tevent/ABI/tevent-0.9.15.sigs b/lib/tevent/ABI/tevent-0.9.15.sigs
new file mode 100644
index 0000000..13c461c
--- /dev/null
+++ b/lib/tevent/ABI/tevent-0.9.15.sigs
@@ -0,0 +1,78 @@
+_tevent_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+_tevent_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+_tevent_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+_tevent_create_immediate: struct tevent_immediate *(TALLOC_CTX *, const char *)
+_tevent_loop_once: int (struct tevent_context *, const char *)
+_tevent_loop_until: int (struct tevent_context *, bool (*)(void *), void *, const char *)
+_tevent_loop_wait: int (struct tevent_context *, const char *)
+_tevent_queue_create: struct tevent_queue *(TALLOC_CTX *, const char *, const char *)
+_tevent_req_callback_data: void *(struct tevent_req *)
+_tevent_req_cancel: bool (struct tevent_req *, const char *)
+_tevent_req_create: struct tevent_req *(TALLOC_CTX *, void *, size_t, const char *, const char *)
+_tevent_req_data: void *(struct tevent_req *)
+_tevent_req_done: void (struct tevent_req *, const char *)
+_tevent_req_error: bool (struct tevent_req *, uint64_t, const char *)
+_tevent_req_nomem: bool (const void *, struct tevent_req *, const char *)
+_tevent_req_notify_callback: void (struct tevent_req *, const char *)
+_tevent_req_oom: void (struct tevent_req *, const char *)
+_tevent_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_backend_list: const char **(TALLOC_CTX *)
+tevent_cleanup_pending_signal_handlers: void (struct tevent_signal *)
+tevent_common_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+tevent_common_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+tevent_common_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+tevent_common_check_signal: int (struct tevent_context *)
+tevent_common_context_destructor: int (struct tevent_context *)
+tevent_common_fd_destructor: int (struct tevent_fd *)
+tevent_common_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_common_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_common_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_common_loop_immediate: bool (struct tevent_context *)
+tevent_common_loop_timer_delay: struct timeval (struct tevent_context *)
+tevent_common_loop_wait: int (struct tevent_context *, const char *)
+tevent_common_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_context_init: struct tevent_context *(TALLOC_CTX *)
+tevent_context_init_byname: struct tevent_context *(TALLOC_CTX *, const char *)
+tevent_debug: void (struct tevent_context *, enum tevent_debug_level, const char *, ...)
+tevent_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_fd_set_auto_close: void (struct tevent_fd *)
+tevent_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_loop_allow_nesting: void (struct tevent_context *)
+tevent_loop_set_nesting_hook: void (struct tevent_context *, tevent_nesting_hook, void *)
+tevent_queue_add: bool (struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_add_entry: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_add_optimize_empty: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_length: size_t (struct tevent_queue *)
+tevent_queue_running: bool (struct tevent_queue *)
+tevent_queue_start: void (struct tevent_queue *)
+tevent_queue_stop: void (struct tevent_queue *)
+tevent_re_initialise: int (struct tevent_context *)
+tevent_register_backend: bool (const char *, const struct tevent_ops *)
+tevent_req_default_print: char *(struct tevent_req *, TALLOC_CTX *)
+tevent_req_defer_callback: void (struct tevent_req *, struct tevent_context *)
+tevent_req_is_error: bool (struct tevent_req *, enum tevent_req_state *, uint64_t *)
+tevent_req_is_in_progress: bool (struct tevent_req *)
+tevent_req_poll: bool (struct tevent_req *, struct tevent_context *)
+tevent_req_post: struct tevent_req *(struct tevent_req *, struct tevent_context *)
+tevent_req_print: char *(TALLOC_CTX *, struct tevent_req *)
+tevent_req_received: void (struct tevent_req *)
+tevent_req_set_callback: void (struct tevent_req *, tevent_req_fn, void *)
+tevent_req_set_cancel_fn: void (struct tevent_req *, tevent_req_cancel_fn)
+tevent_req_set_endtime: bool (struct tevent_req *, struct tevent_context *, struct timeval)
+tevent_req_set_print_fn: void (struct tevent_req *, tevent_req_print_fn)
+tevent_set_abort_fn: void (void (*)(const char *))
+tevent_set_debug: int (struct tevent_context *, void (*)(void *, enum tevent_debug_level, const char *, va_list), void *)
+tevent_set_debug_stderr: int (struct tevent_context *)
+tevent_set_default_backend: void (const char *)
+tevent_signal_support: bool (struct tevent_context *)
+tevent_timeval_add: struct timeval (const struct timeval *, uint32_t, uint32_t)
+tevent_timeval_compare: int (const struct timeval *, const struct timeval *)
+tevent_timeval_current: struct timeval (void)
+tevent_timeval_current_ofs: struct timeval (uint32_t, uint32_t)
+tevent_timeval_is_zero: bool (const struct timeval *)
+tevent_timeval_set: struct timeval (uint32_t, uint32_t)
+tevent_timeval_until: struct timeval (const struct timeval *, const struct timeval *)
+tevent_timeval_zero: struct timeval (void)
+tevent_wakeup_recv: bool (struct tevent_req *)
+tevent_wakeup_send: struct tevent_req *(TALLOC_CTX *, struct tevent_context *, struct timeval)
diff --git a/lib/tevent/ABI/tevent-0.9.16.sigs b/lib/tevent/ABI/tevent-0.9.16.sigs
new file mode 100644
index 0000000..ea7f944
--- /dev/null
+++ b/lib/tevent/ABI/tevent-0.9.16.sigs
@@ -0,0 +1,82 @@
+_tevent_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+_tevent_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+_tevent_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+_tevent_create_immediate: struct tevent_immediate *(TALLOC_CTX *, const char *)
+_tevent_loop_once: int (struct tevent_context *, const char *)
+_tevent_loop_until: int (struct tevent_context *, bool (*)(void *), void *, const char *)
+_tevent_loop_wait: int (struct tevent_context *, const char *)
+_tevent_queue_create: struct tevent_queue *(TALLOC_CTX *, const char *, const char *)
+_tevent_req_callback_data: void *(struct tevent_req *)
+_tevent_req_cancel: bool (struct tevent_req *, const char *)
+_tevent_req_create: struct tevent_req *(TALLOC_CTX *, void *, size_t, const char *, const char *)
+_tevent_req_data: void *(struct tevent_req *)
+_tevent_req_done: void (struct tevent_req *, const char *)
+_tevent_req_error: bool (struct tevent_req *, uint64_t, const char *)
+_tevent_req_nomem: bool (const void *, struct tevent_req *, const char *)
+_tevent_req_notify_callback: void (struct tevent_req *, const char *)
+_tevent_req_oom: void (struct tevent_req *, const char *)
+_tevent_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_backend_list: const char **(TALLOC_CTX *)
+tevent_cleanup_pending_signal_handlers: void (struct tevent_signal *)
+tevent_common_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+tevent_common_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+tevent_common_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+tevent_common_check_signal: int (struct tevent_context *)
+tevent_common_context_destructor: int (struct tevent_context *)
+tevent_common_fd_destructor: int (struct tevent_fd *)
+tevent_common_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_common_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_common_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_common_loop_immediate: bool (struct tevent_context *)
+tevent_common_loop_timer_delay: struct timeval (struct tevent_context *)
+tevent_common_loop_wait: int (struct tevent_context *, const char *)
+tevent_common_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_context_init: struct tevent_context *(TALLOC_CTX *)
+tevent_context_init_byname: struct tevent_context *(TALLOC_CTX *, const char *)
+tevent_context_init_ops: struct tevent_context *(TALLOC_CTX *, const struct tevent_ops *, void *)
+tevent_debug: void (struct tevent_context *, enum tevent_debug_level, const char *, ...)
+tevent_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_fd_set_auto_close: void (struct tevent_fd *)
+tevent_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_get_trace_callback: void (struct tevent_context *, tevent_trace_callback_t *, void *)
+tevent_loop_allow_nesting: void (struct tevent_context *)
+tevent_loop_set_nesting_hook: void (struct tevent_context *, tevent_nesting_hook, void *)
+tevent_queue_add: bool (struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_add_entry: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_add_optimize_empty: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_length: size_t (struct tevent_queue *)
+tevent_queue_running: bool (struct tevent_queue *)
+tevent_queue_start: void (struct tevent_queue *)
+tevent_queue_stop: void (struct tevent_queue *)
+tevent_re_initialise: int (struct tevent_context *)
+tevent_register_backend: bool (const char *, const struct tevent_ops *)
+tevent_req_default_print: char *(struct tevent_req *, TALLOC_CTX *)
+tevent_req_defer_callback: void (struct tevent_req *, struct tevent_context *)
+tevent_req_is_error: bool (struct tevent_req *, enum tevent_req_state *, uint64_t *)
+tevent_req_is_in_progress: bool (struct tevent_req *)
+tevent_req_poll: bool (struct tevent_req *, struct tevent_context *)
+tevent_req_post: struct tevent_req *(struct tevent_req *, struct tevent_context *)
+tevent_req_print: char *(TALLOC_CTX *, struct tevent_req *)
+tevent_req_received: void (struct tevent_req *)
+tevent_req_set_callback: void (struct tevent_req *, tevent_req_fn, void *)
+tevent_req_set_cancel_fn: void (struct tevent_req *, tevent_req_cancel_fn)
+tevent_req_set_endtime: bool (struct tevent_req *, struct tevent_context *, struct timeval)
+tevent_req_set_print_fn: void (struct tevent_req *, tevent_req_print_fn)
+tevent_set_abort_fn: void (void (*)(const char *))
+tevent_set_debug: int (struct tevent_context *, void (*)(void *, enum tevent_debug_level, const char *, va_list), void *)
+tevent_set_debug_stderr: int (struct tevent_context *)
+tevent_set_default_backend: void (const char *)
+tevent_set_trace_callback: void (struct tevent_context *, tevent_trace_callback_t, void *)
+tevent_signal_support: bool (struct tevent_context *)
+tevent_timeval_add: struct timeval (const struct timeval *, uint32_t, uint32_t)
+tevent_timeval_compare: int (const struct timeval *, const struct timeval *)
+tevent_timeval_current: struct timeval (void)
+tevent_timeval_current_ofs: struct timeval (uint32_t, uint32_t)
+tevent_timeval_is_zero: bool (const struct timeval *)
+tevent_timeval_set: struct timeval (uint32_t, uint32_t)
+tevent_timeval_until: struct timeval (const struct timeval *, const struct timeval *)
+tevent_timeval_zero: struct timeval (void)
+tevent_trace_point_callback: void (struct tevent_context *, enum tevent_trace_point)
+tevent_wakeup_recv: bool (struct tevent_req *)
+tevent_wakeup_send: struct tevent_req *(TALLOC_CTX *, struct tevent_context *, struct timeval)
diff --git a/lib/tevent/ABI/tevent-0.9.17.sigs b/lib/tevent/ABI/tevent-0.9.17.sigs
new file mode 100644
index 0000000..ea7f944
--- /dev/null
+++ b/lib/tevent/ABI/tevent-0.9.17.sigs
@@ -0,0 +1,82 @@
+_tevent_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+_tevent_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+_tevent_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+_tevent_create_immediate: struct tevent_immediate *(TALLOC_CTX *, const char *)
+_tevent_loop_once: int (struct tevent_context *, const char *)
+_tevent_loop_until: int (struct tevent_context *, bool (*)(void *), void *, const char *)
+_tevent_loop_wait: int (struct tevent_context *, const char *)
+_tevent_queue_create: struct tevent_queue *(TALLOC_CTX *, const char *, const char *)
+_tevent_req_callback_data: void *(struct tevent_req *)
+_tevent_req_cancel: bool (struct tevent_req *, const char *)
+_tevent_req_create: struct tevent_req *(TALLOC_CTX *, void *, size_t, const char *, const char *)
+_tevent_req_data: void *(struct tevent_req *)
+_tevent_req_done: void (struct tevent_req *, const char *)
+_tevent_req_error: bool (struct tevent_req *, uint64_t, const char *)
+_tevent_req_nomem: bool (const void *, struct tevent_req *, const char *)
+_tevent_req_notify_callback: void (struct tevent_req *, const char *)
+_tevent_req_oom: void (struct tevent_req *, const char *)
+_tevent_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_backend_list: const char **(TALLOC_CTX *)
+tevent_cleanup_pending_signal_handlers: void (struct tevent_signal *)
+tevent_common_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+tevent_common_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+tevent_common_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+tevent_common_check_signal: int (struct tevent_context *)
+tevent_common_context_destructor: int (struct tevent_context *)
+tevent_common_fd_destructor: int (struct tevent_fd *)
+tevent_common_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_common_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_common_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_common_loop_immediate: bool (struct tevent_context *)
+tevent_common_loop_timer_delay: struct timeval (struct tevent_context *)
+tevent_common_loop_wait: int (struct tevent_context *, const char *)
+tevent_common_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_context_init: struct tevent_context *(TALLOC_CTX *)
+tevent_context_init_byname: struct tevent_context *(TALLOC_CTX *, const char *)
+tevent_context_init_ops: struct tevent_context *(TALLOC_CTX *, const struct tevent_ops *, void *)
+tevent_debug: void (struct tevent_context *, enum tevent_debug_level, const char *, ...)
+tevent_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_fd_set_auto_close: void (struct tevent_fd *)
+tevent_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_get_trace_callback: void (struct tevent_context *, tevent_trace_callback_t *, void *)
+tevent_loop_allow_nesting: void (struct tevent_context *)
+tevent_loop_set_nesting_hook: void (struct tevent_context *, tevent_nesting_hook, void *)
+tevent_queue_add: bool (struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_add_entry: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_add_optimize_empty: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_length: size_t (struct tevent_queue *)
+tevent_queue_running: bool (struct tevent_queue *)
+tevent_queue_start: void (struct tevent_queue *)
+tevent_queue_stop: void (struct tevent_queue *)
+tevent_re_initialise: int (struct tevent_context *)
+tevent_register_backend: bool (const char *, const struct tevent_ops *)
+tevent_req_default_print: char *(struct tevent_req *, TALLOC_CTX *)
+tevent_req_defer_callback: void (struct tevent_req *, struct tevent_context *)
+tevent_req_is_error: bool (struct tevent_req *, enum tevent_req_state *, uint64_t *)
+tevent_req_is_in_progress: bool (struct tevent_req *)
+tevent_req_poll: bool (struct tevent_req *, struct tevent_context *)
+tevent_req_post: struct tevent_req *(struct tevent_req *, struct tevent_context *)
+tevent_req_print: char *(TALLOC_CTX *, struct tevent_req *)
+tevent_req_received: void (struct tevent_req *)
+tevent_req_set_callback: void (struct tevent_req *, tevent_req_fn, void *)
+tevent_req_set_cancel_fn: void (struct tevent_req *, tevent_req_cancel_fn)
+tevent_req_set_endtime: bool (struct tevent_req *, struct tevent_context *, struct timeval)
+tevent_req_set_print_fn: void (struct tevent_req *, tevent_req_print_fn)
+tevent_set_abort_fn: void (void (*)(const char *))
+tevent_set_debug: int (struct tevent_context *, void (*)(void *, enum tevent_debug_level, const char *, va_list), void *)
+tevent_set_debug_stderr: int (struct tevent_context *)
+tevent_set_default_backend: void (const char *)
+tevent_set_trace_callback: void (struct tevent_context *, tevent_trace_callback_t, void *)
+tevent_signal_support: bool (struct tevent_context *)
+tevent_timeval_add: struct timeval (const struct timeval *, uint32_t, uint32_t)
+tevent_timeval_compare: int (const struct timeval *, const struct timeval *)
+tevent_timeval_current: struct timeval (void)
+tevent_timeval_current_ofs: struct timeval (uint32_t, uint32_t)
+tevent_timeval_is_zero: bool (const struct timeval *)
+tevent_timeval_set: struct timeval (uint32_t, uint32_t)
+tevent_timeval_until: struct timeval (const struct timeval *, const struct timeval *)
+tevent_timeval_zero: struct timeval (void)
+tevent_trace_point_callback: void (struct tevent_context *, enum tevent_trace_point)
+tevent_wakeup_recv: bool (struct tevent_req *)
+tevent_wakeup_send: struct tevent_req *(TALLOC_CTX *, struct tevent_context *, struct timeval)
diff --git a/lib/tevent/ABI/tevent-0.9.18.sigs b/lib/tevent/ABI/tevent-0.9.18.sigs
new file mode 100644
index 0000000..70d20b6
--- /dev/null
+++ b/lib/tevent/ABI/tevent-0.9.18.sigs
@@ -0,0 +1,83 @@
+_tevent_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+_tevent_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+_tevent_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+_tevent_create_immediate: struct tevent_immediate *(TALLOC_CTX *, const char *)
+_tevent_loop_once: int (struct tevent_context *, const char *)
+_tevent_loop_until: int (struct tevent_context *, bool (*)(void *), void *, const char *)
+_tevent_loop_wait: int (struct tevent_context *, const char *)
+_tevent_queue_create: struct tevent_queue *(TALLOC_CTX *, const char *, const char *)
+_tevent_req_callback_data: void *(struct tevent_req *)
+_tevent_req_cancel: bool (struct tevent_req *, const char *)
+_tevent_req_create: struct tevent_req *(TALLOC_CTX *, void *, size_t, const char *, const char *)
+_tevent_req_data: void *(struct tevent_req *)
+_tevent_req_done: void (struct tevent_req *, const char *)
+_tevent_req_error: bool (struct tevent_req *, uint64_t, const char *)
+_tevent_req_nomem: bool (const void *, struct tevent_req *, const char *)
+_tevent_req_notify_callback: void (struct tevent_req *, const char *)
+_tevent_req_oom: void (struct tevent_req *, const char *)
+_tevent_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_backend_list: const char **(TALLOC_CTX *)
+tevent_cleanup_pending_signal_handlers: void (struct tevent_signal *)
+tevent_common_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+tevent_common_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+tevent_common_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+tevent_common_add_timer_v2: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+tevent_common_check_signal: int (struct tevent_context *)
+tevent_common_context_destructor: int (struct tevent_context *)
+tevent_common_fd_destructor: int (struct tevent_fd *)
+tevent_common_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_common_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_common_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_common_loop_immediate: bool (struct tevent_context *)
+tevent_common_loop_timer_delay: struct timeval (struct tevent_context *)
+tevent_common_loop_wait: int (struct tevent_context *, const char *)
+tevent_common_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_context_init: struct tevent_context *(TALLOC_CTX *)
+tevent_context_init_byname: struct tevent_context *(TALLOC_CTX *, const char *)
+tevent_context_init_ops: struct tevent_context *(TALLOC_CTX *, const struct tevent_ops *, void *)
+tevent_debug: void (struct tevent_context *, enum tevent_debug_level, const char *, ...)
+tevent_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_fd_set_auto_close: void (struct tevent_fd *)
+tevent_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_get_trace_callback: void (struct tevent_context *, tevent_trace_callback_t *, void *)
+tevent_loop_allow_nesting: void (struct tevent_context *)
+tevent_loop_set_nesting_hook: void (struct tevent_context *, tevent_nesting_hook, void *)
+tevent_queue_add: bool (struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_add_entry: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_add_optimize_empty: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_length: size_t (struct tevent_queue *)
+tevent_queue_running: bool (struct tevent_queue *)
+tevent_queue_start: void (struct tevent_queue *)
+tevent_queue_stop: void (struct tevent_queue *)
+tevent_re_initialise: int (struct tevent_context *)
+tevent_register_backend: bool (const char *, const struct tevent_ops *)
+tevent_req_default_print: char *(struct tevent_req *, TALLOC_CTX *)
+tevent_req_defer_callback: void (struct tevent_req *, struct tevent_context *)
+tevent_req_is_error: bool (struct tevent_req *, enum tevent_req_state *, uint64_t *)
+tevent_req_is_in_progress: bool (struct tevent_req *)
+tevent_req_poll: bool (struct tevent_req *, struct tevent_context *)
+tevent_req_post: struct tevent_req *(struct tevent_req *, struct tevent_context *)
+tevent_req_print: char *(TALLOC_CTX *, struct tevent_req *)
+tevent_req_received: void (struct tevent_req *)
+tevent_req_set_callback: void (struct tevent_req *, tevent_req_fn, void *)
+tevent_req_set_cancel_fn: void (struct tevent_req *, tevent_req_cancel_fn)
+tevent_req_set_endtime: bool (struct tevent_req *, struct tevent_context *, struct timeval)
+tevent_req_set_print_fn: void (struct tevent_req *, tevent_req_print_fn)
+tevent_set_abort_fn: void (void (*)(const char *))
+tevent_set_debug: int (struct tevent_context *, void (*)(void *, enum tevent_debug_level, const char *, va_list), void *)
+tevent_set_debug_stderr: int (struct tevent_context *)
+tevent_set_default_backend: void (const char *)
+tevent_set_trace_callback: void (struct tevent_context *, tevent_trace_callback_t, void *)
+tevent_signal_support: bool (struct tevent_context *)
+tevent_timeval_add: struct timeval (const struct timeval *, uint32_t, uint32_t)
+tevent_timeval_compare: int (const struct timeval *, const struct timeval *)
+tevent_timeval_current: struct timeval (void)
+tevent_timeval_current_ofs: struct timeval (uint32_t, uint32_t)
+tevent_timeval_is_zero: bool (const struct timeval *)
+tevent_timeval_set: struct timeval (uint32_t, uint32_t)
+tevent_timeval_until: struct timeval (const struct timeval *, const struct timeval *)
+tevent_timeval_zero: struct timeval (void)
+tevent_trace_point_callback: void (struct tevent_context *, enum tevent_trace_point)
+tevent_wakeup_recv: bool (struct tevent_req *)
+tevent_wakeup_send: struct tevent_req *(TALLOC_CTX *, struct tevent_context *, struct timeval)
diff --git a/lib/tevent/ABI/tevent-0.9.19.sigs b/lib/tevent/ABI/tevent-0.9.19.sigs
new file mode 100644
index 0000000..70d20b6
--- /dev/null
+++ b/lib/tevent/ABI/tevent-0.9.19.sigs
@@ -0,0 +1,83 @@
+_tevent_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+_tevent_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+_tevent_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+_tevent_create_immediate: struct tevent_immediate *(TALLOC_CTX *, const char *)
+_tevent_loop_once: int (struct tevent_context *, const char *)
+_tevent_loop_until: int (struct tevent_context *, bool (*)(void *), void *, const char *)
+_tevent_loop_wait: int (struct tevent_context *, const char *)
+_tevent_queue_create: struct tevent_queue *(TALLOC_CTX *, const char *, const char *)
+_tevent_req_callback_data: void *(struct tevent_req *)
+_tevent_req_cancel: bool (struct tevent_req *, const char *)
+_tevent_req_create: struct tevent_req *(TALLOC_CTX *, void *, size_t, const char *, const char *)
+_tevent_req_data: void *(struct tevent_req *)
+_tevent_req_done: void (struct tevent_req *, const char *)
+_tevent_req_error: bool (struct tevent_req *, uint64_t, const char *)
+_tevent_req_nomem: bool (const void *, struct tevent_req *, const char *)
+_tevent_req_notify_callback: void (struct tevent_req *, const char *)
+_tevent_req_oom: void (struct tevent_req *, const char *)
+_tevent_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_backend_list: const char **(TALLOC_CTX *)
+tevent_cleanup_pending_signal_handlers: void (struct tevent_signal *)
+tevent_common_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+tevent_common_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+tevent_common_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+tevent_common_add_timer_v2: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+tevent_common_check_signal: int (struct tevent_context *)
+tevent_common_context_destructor: int (struct tevent_context *)
+tevent_common_fd_destructor: int (struct tevent_fd *)
+tevent_common_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_common_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_common_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_common_loop_immediate: bool (struct tevent_context *)
+tevent_common_loop_timer_delay: struct timeval (struct tevent_context *)
+tevent_common_loop_wait: int (struct tevent_context *, const char *)
+tevent_common_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_context_init: struct tevent_context *(TALLOC_CTX *)
+tevent_context_init_byname: struct tevent_context *(TALLOC_CTX *, const char *)
+tevent_context_init_ops: struct tevent_context *(TALLOC_CTX *, const struct tevent_ops *, void *)
+tevent_debug: void (struct tevent_context *, enum tevent_debug_level, const char *, ...)
+tevent_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_fd_set_auto_close: void (struct tevent_fd *)
+tevent_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_get_trace_callback: void (struct tevent_context *, tevent_trace_callback_t *, void *)
+tevent_loop_allow_nesting: void (struct tevent_context *)
+tevent_loop_set_nesting_hook: void (struct tevent_context *, tevent_nesting_hook, void *)
+tevent_queue_add: bool (struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_add_entry: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_add_optimize_empty: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_length: size_t (struct tevent_queue *)
+tevent_queue_running: bool (struct tevent_queue *)
+tevent_queue_start: void (struct tevent_queue *)
+tevent_queue_stop: void (struct tevent_queue *)
+tevent_re_initialise: int (struct tevent_context *)
+tevent_register_backend: bool (const char *, const struct tevent_ops *)
+tevent_req_default_print: char *(struct tevent_req *, TALLOC_CTX *)
+tevent_req_defer_callback: void (struct tevent_req *, struct tevent_context *)
+tevent_req_is_error: bool (struct tevent_req *, enum tevent_req_state *, uint64_t *)
+tevent_req_is_in_progress: bool (struct tevent_req *)
+tevent_req_poll: bool (struct tevent_req *, struct tevent_context *)
+tevent_req_post: struct tevent_req *(struct tevent_req *, struct tevent_context *)
+tevent_req_print: char *(TALLOC_CTX *, struct tevent_req *)
+tevent_req_received: void (struct tevent_req *)
+tevent_req_set_callback: void (struct tevent_req *, tevent_req_fn, void *)
+tevent_req_set_cancel_fn: void (struct tevent_req *, tevent_req_cancel_fn)
+tevent_req_set_endtime: bool (struct tevent_req *, struct tevent_context *, struct timeval)
+tevent_req_set_print_fn: void (struct tevent_req *, tevent_req_print_fn)
+tevent_set_abort_fn: void (void (*)(const char *))
+tevent_set_debug: int (struct tevent_context *, void (*)(void *, enum tevent_debug_level, const char *, va_list), void *)
+tevent_set_debug_stderr: int (struct tevent_context *)
+tevent_set_default_backend: void (const char *)
+tevent_set_trace_callback: void (struct tevent_context *, tevent_trace_callback_t, void *)
+tevent_signal_support: bool (struct tevent_context *)
+tevent_timeval_add: struct timeval (const struct timeval *, uint32_t, uint32_t)
+tevent_timeval_compare: int (const struct timeval *, const struct timeval *)
+tevent_timeval_current: struct timeval (void)
+tevent_timeval_current_ofs: struct timeval (uint32_t, uint32_t)
+tevent_timeval_is_zero: bool (const struct timeval *)
+tevent_timeval_set: struct timeval (uint32_t, uint32_t)
+tevent_timeval_until: struct timeval (const struct timeval *, const struct timeval *)
+tevent_timeval_zero: struct timeval (void)
+tevent_trace_point_callback: void (struct tevent_context *, enum tevent_trace_point)
+tevent_wakeup_recv: bool (struct tevent_req *)
+tevent_wakeup_send: struct tevent_req *(TALLOC_CTX *, struct tevent_context *, struct timeval)
diff --git a/lib/tevent/ABI/tevent-0.9.20.sigs b/lib/tevent/ABI/tevent-0.9.20.sigs
new file mode 100644
index 0000000..7b9c77d
--- /dev/null
+++ b/lib/tevent/ABI/tevent-0.9.20.sigs
@@ -0,0 +1,87 @@
+_tevent_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+_tevent_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+_tevent_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+_tevent_create_immediate: struct tevent_immediate *(TALLOC_CTX *, const char *)
+_tevent_loop_once: int (struct tevent_context *, const char *)
+_tevent_loop_until: int (struct tevent_context *, bool (*)(void *), void *, const char *)
+_tevent_loop_wait: int (struct tevent_context *, const char *)
+_tevent_queue_create: struct tevent_queue *(TALLOC_CTX *, const char *, const char *)
+_tevent_req_callback_data: void *(struct tevent_req *)
+_tevent_req_cancel: bool (struct tevent_req *, const char *)
+_tevent_req_create: struct tevent_req *(TALLOC_CTX *, void *, size_t, const char *, const char *)
+_tevent_req_data: void *(struct tevent_req *)
+_tevent_req_done: void (struct tevent_req *, const char *)
+_tevent_req_error: bool (struct tevent_req *, uint64_t, const char *)
+_tevent_req_nomem: bool (const void *, struct tevent_req *, const char *)
+_tevent_req_notify_callback: void (struct tevent_req *, const char *)
+_tevent_req_oom: void (struct tevent_req *, const char *)
+_tevent_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_backend_list: const char **(TALLOC_CTX *)
+tevent_cleanup_pending_signal_handlers: void (struct tevent_signal *)
+tevent_common_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+tevent_common_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+tevent_common_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+tevent_common_add_timer_v2: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+tevent_common_check_signal: int (struct tevent_context *)
+tevent_common_context_destructor: int (struct tevent_context *)
+tevent_common_fd_destructor: int (struct tevent_fd *)
+tevent_common_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_common_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_common_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_common_loop_immediate: bool (struct tevent_context *)
+tevent_common_loop_timer_delay: struct timeval (struct tevent_context *)
+tevent_common_loop_wait: int (struct tevent_context *, const char *)
+tevent_common_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_context_init: struct tevent_context *(TALLOC_CTX *)
+tevent_context_init_byname: struct tevent_context *(TALLOC_CTX *, const char *)
+tevent_context_init_ops: struct tevent_context *(TALLOC_CTX *, const struct tevent_ops *, void *)
+tevent_debug: void (struct tevent_context *, enum tevent_debug_level, const char *, ...)
+tevent_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_fd_set_auto_close: void (struct tevent_fd *)
+tevent_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_get_trace_callback: void (struct tevent_context *, tevent_trace_callback_t *, void *)
+tevent_loop_allow_nesting: void (struct tevent_context *)
+tevent_loop_set_nesting_hook: void (struct tevent_context *, tevent_nesting_hook, void *)
+tevent_num_signals: size_t (void)
+tevent_queue_add: bool (struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_add_entry: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_add_optimize_empty: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_length: size_t (struct tevent_queue *)
+tevent_queue_running: bool (struct tevent_queue *)
+tevent_queue_start: void (struct tevent_queue *)
+tevent_queue_stop: void (struct tevent_queue *)
+tevent_queue_wait_recv: bool (struct tevent_req *)
+tevent_queue_wait_send: struct tevent_req *(TALLOC_CTX *, struct tevent_context *, struct tevent_queue *)
+tevent_re_initialise: int (struct tevent_context *)
+tevent_register_backend: bool (const char *, const struct tevent_ops *)
+tevent_req_default_print: char *(struct tevent_req *, TALLOC_CTX *)
+tevent_req_defer_callback: void (struct tevent_req *, struct tevent_context *)
+tevent_req_is_error: bool (struct tevent_req *, enum tevent_req_state *, uint64_t *)
+tevent_req_is_in_progress: bool (struct tevent_req *)
+tevent_req_poll: bool (struct tevent_req *, struct tevent_context *)
+tevent_req_post: struct tevent_req *(struct tevent_req *, struct tevent_context *)
+tevent_req_print: char *(TALLOC_CTX *, struct tevent_req *)
+tevent_req_received: void (struct tevent_req *)
+tevent_req_set_callback: void (struct tevent_req *, tevent_req_fn, void *)
+tevent_req_set_cancel_fn: void (struct tevent_req *, tevent_req_cancel_fn)
+tevent_req_set_endtime: bool (struct tevent_req *, struct tevent_context *, struct timeval)
+tevent_req_set_print_fn: void (struct tevent_req *, tevent_req_print_fn)
+tevent_sa_info_queue_count: size_t (void)
+tevent_set_abort_fn: void (void (*)(const char *))
+tevent_set_debug: int (struct tevent_context *, void (*)(void *, enum tevent_debug_level, const char *, va_list), void *)
+tevent_set_debug_stderr: int (struct tevent_context *)
+tevent_set_default_backend: void (const char *)
+tevent_set_trace_callback: void (struct tevent_context *, tevent_trace_callback_t, void *)
+tevent_signal_support: bool (struct tevent_context *)
+tevent_timeval_add: struct timeval (const struct timeval *, uint32_t, uint32_t)
+tevent_timeval_compare: int (const struct timeval *, const struct timeval *)
+tevent_timeval_current: struct timeval (void)
+tevent_timeval_current_ofs: struct timeval (uint32_t, uint32_t)
+tevent_timeval_is_zero: bool (const struct timeval *)
+tevent_timeval_set: struct timeval (uint32_t, uint32_t)
+tevent_timeval_until: struct timeval (const struct timeval *, const struct timeval *)
+tevent_timeval_zero: struct timeval (void)
+tevent_trace_point_callback: void (struct tevent_context *, enum tevent_trace_point)
+tevent_wakeup_recv: bool (struct tevent_req *)
+tevent_wakeup_send: struct tevent_req *(TALLOC_CTX *, struct tevent_context *, struct timeval)
diff --git a/lib/tevent/ABI/tevent-0.9.21.sigs b/lib/tevent/ABI/tevent-0.9.21.sigs
new file mode 100644
index 0000000..d8b9f4b
--- /dev/null
+++ b/lib/tevent/ABI/tevent-0.9.21.sigs
@@ -0,0 +1,88 @@
+_tevent_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+_tevent_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+_tevent_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+_tevent_create_immediate: struct tevent_immediate *(TALLOC_CTX *, const char *)
+_tevent_loop_once: int (struct tevent_context *, const char *)
+_tevent_loop_until: int (struct tevent_context *, bool (*)(void *), void *, const char *)
+_tevent_loop_wait: int (struct tevent_context *, const char *)
+_tevent_queue_create: struct tevent_queue *(TALLOC_CTX *, const char *, const char *)
+_tevent_req_callback_data: void *(struct tevent_req *)
+_tevent_req_cancel: bool (struct tevent_req *, const char *)
+_tevent_req_create: struct tevent_req *(TALLOC_CTX *, void *, size_t, const char *, const char *)
+_tevent_req_data: void *(struct tevent_req *)
+_tevent_req_done: void (struct tevent_req *, const char *)
+_tevent_req_error: bool (struct tevent_req *, uint64_t, const char *)
+_tevent_req_nomem: bool (const void *, struct tevent_req *, const char *)
+_tevent_req_notify_callback: void (struct tevent_req *, const char *)
+_tevent_req_oom: void (struct tevent_req *, const char *)
+_tevent_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_backend_list: const char **(TALLOC_CTX *)
+tevent_cleanup_pending_signal_handlers: void (struct tevent_signal *)
+tevent_common_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+tevent_common_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+tevent_common_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+tevent_common_add_timer_v2: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+tevent_common_check_signal: int (struct tevent_context *)
+tevent_common_context_destructor: int (struct tevent_context *)
+tevent_common_fd_destructor: int (struct tevent_fd *)
+tevent_common_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_common_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_common_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_common_loop_immediate: bool (struct tevent_context *)
+tevent_common_loop_timer_delay: struct timeval (struct tevent_context *)
+tevent_common_loop_wait: int (struct tevent_context *, const char *)
+tevent_common_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_context_init: struct tevent_context *(TALLOC_CTX *)
+tevent_context_init_byname: struct tevent_context *(TALLOC_CTX *, const char *)
+tevent_context_init_ops: struct tevent_context *(TALLOC_CTX *, const struct tevent_ops *, void *)
+tevent_debug: void (struct tevent_context *, enum tevent_debug_level, const char *, ...)
+tevent_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_fd_set_auto_close: void (struct tevent_fd *)
+tevent_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_get_trace_callback: void (struct tevent_context *, tevent_trace_callback_t *, void *)
+tevent_loop_allow_nesting: void (struct tevent_context *)
+tevent_loop_set_nesting_hook: void (struct tevent_context *, tevent_nesting_hook, void *)
+tevent_num_signals: size_t (void)
+tevent_queue_add: bool (struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_add_entry: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_add_optimize_empty: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_length: size_t (struct tevent_queue *)
+tevent_queue_running: bool (struct tevent_queue *)
+tevent_queue_start: void (struct tevent_queue *)
+tevent_queue_stop: void (struct tevent_queue *)
+tevent_queue_wait_recv: bool (struct tevent_req *)
+tevent_queue_wait_send: struct tevent_req *(TALLOC_CTX *, struct tevent_context *, struct tevent_queue *)
+tevent_re_initialise: int (struct tevent_context *)
+tevent_register_backend: bool (const char *, const struct tevent_ops *)
+tevent_req_default_print: char *(struct tevent_req *, TALLOC_CTX *)
+tevent_req_defer_callback: void (struct tevent_req *, struct tevent_context *)
+tevent_req_is_error: bool (struct tevent_req *, enum tevent_req_state *, uint64_t *)
+tevent_req_is_in_progress: bool (struct tevent_req *)
+tevent_req_poll: bool (struct tevent_req *, struct tevent_context *)
+tevent_req_post: struct tevent_req *(struct tevent_req *, struct tevent_context *)
+tevent_req_print: char *(TALLOC_CTX *, struct tevent_req *)
+tevent_req_received: void (struct tevent_req *)
+tevent_req_set_callback: void (struct tevent_req *, tevent_req_fn, void *)
+tevent_req_set_cancel_fn: void (struct tevent_req *, tevent_req_cancel_fn)
+tevent_req_set_cleanup_fn: void (struct tevent_req *, tevent_req_cleanup_fn)
+tevent_req_set_endtime: bool (struct tevent_req *, struct tevent_context *, struct timeval)
+tevent_req_set_print_fn: void (struct tevent_req *, tevent_req_print_fn)
+tevent_sa_info_queue_count: size_t (void)
+tevent_set_abort_fn: void (void (*)(const char *))
+tevent_set_debug: int (struct tevent_context *, void (*)(void *, enum tevent_debug_level, const char *, va_list), void *)
+tevent_set_debug_stderr: int (struct tevent_context *)
+tevent_set_default_backend: void (const char *)
+tevent_set_trace_callback: void (struct tevent_context *, tevent_trace_callback_t, void *)
+tevent_signal_support: bool (struct tevent_context *)
+tevent_timeval_add: struct timeval (const struct timeval *, uint32_t, uint32_t)
+tevent_timeval_compare: int (const struct timeval *, const struct timeval *)
+tevent_timeval_current: struct timeval (void)
+tevent_timeval_current_ofs: struct timeval (uint32_t, uint32_t)
+tevent_timeval_is_zero: bool (const struct timeval *)
+tevent_timeval_set: struct timeval (uint32_t, uint32_t)
+tevent_timeval_until: struct timeval (const struct timeval *, const struct timeval *)
+tevent_timeval_zero: struct timeval (void)
+tevent_trace_point_callback: void (struct tevent_context *, enum tevent_trace_point)
+tevent_wakeup_recv: bool (struct tevent_req *)
+tevent_wakeup_send: struct tevent_req *(TALLOC_CTX *, struct tevent_context *, struct timeval)
diff --git a/lib/tevent/ABI/tevent-0.9.22.sigs b/lib/tevent/ABI/tevent-0.9.22.sigs
new file mode 100644
index 0000000..d8b9f4b
--- /dev/null
+++ b/lib/tevent/ABI/tevent-0.9.22.sigs
@@ -0,0 +1,88 @@
+_tevent_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+_tevent_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+_tevent_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+_tevent_create_immediate: struct tevent_immediate *(TALLOC_CTX *, const char *)
+_tevent_loop_once: int (struct tevent_context *, const char *)
+_tevent_loop_until: int (struct tevent_context *, bool (*)(void *), void *, const char *)
+_tevent_loop_wait: int (struct tevent_context *, const char *)
+_tevent_queue_create: struct tevent_queue *(TALLOC_CTX *, const char *, const char *)
+_tevent_req_callback_data: void *(struct tevent_req *)
+_tevent_req_cancel: bool (struct tevent_req *, const char *)
+_tevent_req_create: struct tevent_req *(TALLOC_CTX *, void *, size_t, const char *, const char *)
+_tevent_req_data: void *(struct tevent_req *)
+_tevent_req_done: void (struct tevent_req *, const char *)
+_tevent_req_error: bool (struct tevent_req *, uint64_t, const char *)
+_tevent_req_nomem: bool (const void *, struct tevent_req *, const char *)
+_tevent_req_notify_callback: void (struct tevent_req *, const char *)
+_tevent_req_oom: void (struct tevent_req *, const char *)
+_tevent_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_backend_list: const char **(TALLOC_CTX *)
+tevent_cleanup_pending_signal_handlers: void (struct tevent_signal *)
+tevent_common_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+tevent_common_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+tevent_common_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+tevent_common_add_timer_v2: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+tevent_common_check_signal: int (struct tevent_context *)
+tevent_common_context_destructor: int (struct tevent_context *)
+tevent_common_fd_destructor: int (struct tevent_fd *)
+tevent_common_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_common_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_common_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_common_loop_immediate: bool (struct tevent_context *)
+tevent_common_loop_timer_delay: struct timeval (struct tevent_context *)
+tevent_common_loop_wait: int (struct tevent_context *, const char *)
+tevent_common_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_context_init: struct tevent_context *(TALLOC_CTX *)
+tevent_context_init_byname: struct tevent_context *(TALLOC_CTX *, const char *)
+tevent_context_init_ops: struct tevent_context *(TALLOC_CTX *, const struct tevent_ops *, void *)
+tevent_debug: void (struct tevent_context *, enum tevent_debug_level, const char *, ...)
+tevent_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_fd_set_auto_close: void (struct tevent_fd *)
+tevent_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_get_trace_callback: void (struct tevent_context *, tevent_trace_callback_t *, void *)
+tevent_loop_allow_nesting: void (struct tevent_context *)
+tevent_loop_set_nesting_hook: void (struct tevent_context *, tevent_nesting_hook, void *)
+tevent_num_signals: size_t (void)
+tevent_queue_add: bool (struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_add_entry: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_add_optimize_empty: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_length: size_t (struct tevent_queue *)
+tevent_queue_running: bool (struct tevent_queue *)
+tevent_queue_start: void (struct tevent_queue *)
+tevent_queue_stop: void (struct tevent_queue *)
+tevent_queue_wait_recv: bool (struct tevent_req *)
+tevent_queue_wait_send: struct tevent_req *(TALLOC_CTX *, struct tevent_context *, struct tevent_queue *)
+tevent_re_initialise: int (struct tevent_context *)
+tevent_register_backend: bool (const char *, const struct tevent_ops *)
+tevent_req_default_print: char *(struct tevent_req *, TALLOC_CTX *)
+tevent_req_defer_callback: void (struct tevent_req *, struct tevent_context *)
+tevent_req_is_error: bool (struct tevent_req *, enum tevent_req_state *, uint64_t *)
+tevent_req_is_in_progress: bool (struct tevent_req *)
+tevent_req_poll: bool (struct tevent_req *, struct tevent_context *)
+tevent_req_post: struct tevent_req *(struct tevent_req *, struct tevent_context *)
+tevent_req_print: char *(TALLOC_CTX *, struct tevent_req *)
+tevent_req_received: void (struct tevent_req *)
+tevent_req_set_callback: void (struct tevent_req *, tevent_req_fn, void *)
+tevent_req_set_cancel_fn: void (struct tevent_req *, tevent_req_cancel_fn)
+tevent_req_set_cleanup_fn: void (struct tevent_req *, tevent_req_cleanup_fn)
+tevent_req_set_endtime: bool (struct tevent_req *, struct tevent_context *, struct timeval)
+tevent_req_set_print_fn: void (struct tevent_req *, tevent_req_print_fn)
+tevent_sa_info_queue_count: size_t (void)
+tevent_set_abort_fn: void (void (*)(const char *))
+tevent_set_debug: int (struct tevent_context *, void (*)(void *, enum tevent_debug_level, const char *, va_list), void *)
+tevent_set_debug_stderr: int (struct tevent_context *)
+tevent_set_default_backend: void (const char *)
+tevent_set_trace_callback: void (struct tevent_context *, tevent_trace_callback_t, void *)
+tevent_signal_support: bool (struct tevent_context *)
+tevent_timeval_add: struct timeval (const struct timeval *, uint32_t, uint32_t)
+tevent_timeval_compare: int (const struct timeval *, const struct timeval *)
+tevent_timeval_current: struct timeval (void)
+tevent_timeval_current_ofs: struct timeval (uint32_t, uint32_t)
+tevent_timeval_is_zero: bool (const struct timeval *)
+tevent_timeval_set: struct timeval (uint32_t, uint32_t)
+tevent_timeval_until: struct timeval (const struct timeval *, const struct timeval *)
+tevent_timeval_zero: struct timeval (void)
+tevent_trace_point_callback: void (struct tevent_context *, enum tevent_trace_point)
+tevent_wakeup_recv: bool (struct tevent_req *)
+tevent_wakeup_send: struct tevent_req *(TALLOC_CTX *, struct tevent_context *, struct timeval)
diff --git a/lib/tevent/ABI/tevent-0.9.23.sigs b/lib/tevent/ABI/tevent-0.9.23.sigs
new file mode 100644
index 0000000..d8b9f4b
--- /dev/null
+++ b/lib/tevent/ABI/tevent-0.9.23.sigs
@@ -0,0 +1,88 @@
+_tevent_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+_tevent_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+_tevent_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+_tevent_create_immediate: struct tevent_immediate *(TALLOC_CTX *, const char *)
+_tevent_loop_once: int (struct tevent_context *, const char *)
+_tevent_loop_until: int (struct tevent_context *, bool (*)(void *), void *, const char *)
+_tevent_loop_wait: int (struct tevent_context *, const char *)
+_tevent_queue_create: struct tevent_queue *(TALLOC_CTX *, const char *, const char *)
+_tevent_req_callback_data: void *(struct tevent_req *)
+_tevent_req_cancel: bool (struct tevent_req *, const char *)
+_tevent_req_create: struct tevent_req *(TALLOC_CTX *, void *, size_t, const char *, const char *)
+_tevent_req_data: void *(struct tevent_req *)
+_tevent_req_done: void (struct tevent_req *, const char *)
+_tevent_req_error: bool (struct tevent_req *, uint64_t, const char *)
+_tevent_req_nomem: bool (const void *, struct tevent_req *, const char *)
+_tevent_req_notify_callback: void (struct tevent_req *, const char *)
+_tevent_req_oom: void (struct tevent_req *, const char *)
+_tevent_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_backend_list: const char **(TALLOC_CTX *)
+tevent_cleanup_pending_signal_handlers: void (struct tevent_signal *)
+tevent_common_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+tevent_common_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+tevent_common_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+tevent_common_add_timer_v2: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+tevent_common_check_signal: int (struct tevent_context *)
+tevent_common_context_destructor: int (struct tevent_context *)
+tevent_common_fd_destructor: int (struct tevent_fd *)
+tevent_common_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_common_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_common_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_common_loop_immediate: bool (struct tevent_context *)
+tevent_common_loop_timer_delay: struct timeval (struct tevent_context *)
+tevent_common_loop_wait: int (struct tevent_context *, const char *)
+tevent_common_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_context_init: struct tevent_context *(TALLOC_CTX *)
+tevent_context_init_byname: struct tevent_context *(TALLOC_CTX *, const char *)
+tevent_context_init_ops: struct tevent_context *(TALLOC_CTX *, const struct tevent_ops *, void *)
+tevent_debug: void (struct tevent_context *, enum tevent_debug_level, const char *, ...)
+tevent_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_fd_set_auto_close: void (struct tevent_fd *)
+tevent_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_get_trace_callback: void (struct tevent_context *, tevent_trace_callback_t *, void *)
+tevent_loop_allow_nesting: void (struct tevent_context *)
+tevent_loop_set_nesting_hook: void (struct tevent_context *, tevent_nesting_hook, void *)
+tevent_num_signals: size_t (void)
+tevent_queue_add: bool (struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_add_entry: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_add_optimize_empty: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_length: size_t (struct tevent_queue *)
+tevent_queue_running: bool (struct tevent_queue *)
+tevent_queue_start: void (struct tevent_queue *)
+tevent_queue_stop: void (struct tevent_queue *)
+tevent_queue_wait_recv: bool (struct tevent_req *)
+tevent_queue_wait_send: struct tevent_req *(TALLOC_CTX *, struct tevent_context *, struct tevent_queue *)
+tevent_re_initialise: int (struct tevent_context *)
+tevent_register_backend: bool (const char *, const struct tevent_ops *)
+tevent_req_default_print: char *(struct tevent_req *, TALLOC_CTX *)
+tevent_req_defer_callback: void (struct tevent_req *, struct tevent_context *)
+tevent_req_is_error: bool (struct tevent_req *, enum tevent_req_state *, uint64_t *)
+tevent_req_is_in_progress: bool (struct tevent_req *)
+tevent_req_poll: bool (struct tevent_req *, struct tevent_context *)
+tevent_req_post: struct tevent_req *(struct tevent_req *, struct tevent_context *)
+tevent_req_print: char *(TALLOC_CTX *, struct tevent_req *)
+tevent_req_received: void (struct tevent_req *)
+tevent_req_set_callback: void (struct tevent_req *, tevent_req_fn, void *)
+tevent_req_set_cancel_fn: void (struct tevent_req *, tevent_req_cancel_fn)
+tevent_req_set_cleanup_fn: void (struct tevent_req *, tevent_req_cleanup_fn)
+tevent_req_set_endtime: bool (struct tevent_req *, struct tevent_context *, struct timeval)
+tevent_req_set_print_fn: void (struct tevent_req *, tevent_req_print_fn)
+tevent_sa_info_queue_count: size_t (void)
+tevent_set_abort_fn: void (void (*)(const char *))
+tevent_set_debug: int (struct tevent_context *, void (*)(void *, enum tevent_debug_level, const char *, va_list), void *)
+tevent_set_debug_stderr: int (struct tevent_context *)
+tevent_set_default_backend: void (const char *)
+tevent_set_trace_callback: void (struct tevent_context *, tevent_trace_callback_t, void *)
+tevent_signal_support: bool (struct tevent_context *)
+tevent_timeval_add: struct timeval (const struct timeval *, uint32_t, uint32_t)
+tevent_timeval_compare: int (const struct timeval *, const struct timeval *)
+tevent_timeval_current: struct timeval (void)
+tevent_timeval_current_ofs: struct timeval (uint32_t, uint32_t)
+tevent_timeval_is_zero: bool (const struct timeval *)
+tevent_timeval_set: struct timeval (uint32_t, uint32_t)
+tevent_timeval_until: struct timeval (const struct timeval *, const struct timeval *)
+tevent_timeval_zero: struct timeval (void)
+tevent_trace_point_callback: void (struct tevent_context *, enum tevent_trace_point)
+tevent_wakeup_recv: bool (struct tevent_req *)
+tevent_wakeup_send: struct tevent_req *(TALLOC_CTX *, struct tevent_context *, struct timeval)
diff --git a/lib/tevent/ABI/tevent-0.9.24.sigs b/lib/tevent/ABI/tevent-0.9.24.sigs
new file mode 100644
index 0000000..d8b9f4b
--- /dev/null
+++ b/lib/tevent/ABI/tevent-0.9.24.sigs
@@ -0,0 +1,88 @@
+_tevent_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+_tevent_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+_tevent_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+_tevent_create_immediate: struct tevent_immediate *(TALLOC_CTX *, const char *)
+_tevent_loop_once: int (struct tevent_context *, const char *)
+_tevent_loop_until: int (struct tevent_context *, bool (*)(void *), void *, const char *)
+_tevent_loop_wait: int (struct tevent_context *, const char *)
+_tevent_queue_create: struct tevent_queue *(TALLOC_CTX *, const char *, const char *)
+_tevent_req_callback_data: void *(struct tevent_req *)
+_tevent_req_cancel: bool (struct tevent_req *, const char *)
+_tevent_req_create: struct tevent_req *(TALLOC_CTX *, void *, size_t, const char *, const char *)
+_tevent_req_data: void *(struct tevent_req *)
+_tevent_req_done: void (struct tevent_req *, const char *)
+_tevent_req_error: bool (struct tevent_req *, uint64_t, const char *)
+_tevent_req_nomem: bool (const void *, struct tevent_req *, const char *)
+_tevent_req_notify_callback: void (struct tevent_req *, const char *)
+_tevent_req_oom: void (struct tevent_req *, const char *)
+_tevent_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_backend_list: const char **(TALLOC_CTX *)
+tevent_cleanup_pending_signal_handlers: void (struct tevent_signal *)
+tevent_common_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+tevent_common_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+tevent_common_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+tevent_common_add_timer_v2: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+tevent_common_check_signal: int (struct tevent_context *)
+tevent_common_context_destructor: int (struct tevent_context *)
+tevent_common_fd_destructor: int (struct tevent_fd *)
+tevent_common_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_common_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_common_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_common_loop_immediate: bool (struct tevent_context *)
+tevent_common_loop_timer_delay: struct timeval (struct tevent_context *)
+tevent_common_loop_wait: int (struct tevent_context *, const char *)
+tevent_common_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_context_init: struct tevent_context *(TALLOC_CTX *)
+tevent_context_init_byname: struct tevent_context *(TALLOC_CTX *, const char *)
+tevent_context_init_ops: struct tevent_context *(TALLOC_CTX *, const struct tevent_ops *, void *)
+tevent_debug: void (struct tevent_context *, enum tevent_debug_level, const char *, ...)
+tevent_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_fd_set_auto_close: void (struct tevent_fd *)
+tevent_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_get_trace_callback: void (struct tevent_context *, tevent_trace_callback_t *, void *)
+tevent_loop_allow_nesting: void (struct tevent_context *)
+tevent_loop_set_nesting_hook: void (struct tevent_context *, tevent_nesting_hook, void *)
+tevent_num_signals: size_t (void)
+tevent_queue_add: bool (struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_add_entry: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_add_optimize_empty: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_length: size_t (struct tevent_queue *)
+tevent_queue_running: bool (struct tevent_queue *)
+tevent_queue_start: void (struct tevent_queue *)
+tevent_queue_stop: void (struct tevent_queue *)
+tevent_queue_wait_recv: bool (struct tevent_req *)
+tevent_queue_wait_send: struct tevent_req *(TALLOC_CTX *, struct tevent_context *, struct tevent_queue *)
+tevent_re_initialise: int (struct tevent_context *)
+tevent_register_backend: bool (const char *, const struct tevent_ops *)
+tevent_req_default_print: char *(struct tevent_req *, TALLOC_CTX *)
+tevent_req_defer_callback: void (struct tevent_req *, struct tevent_context *)
+tevent_req_is_error: bool (struct tevent_req *, enum tevent_req_state *, uint64_t *)
+tevent_req_is_in_progress: bool (struct tevent_req *)
+tevent_req_poll: bool (struct tevent_req *, struct tevent_context *)
+tevent_req_post: struct tevent_req *(struct tevent_req *, struct tevent_context *)
+tevent_req_print: char *(TALLOC_CTX *, struct tevent_req *)
+tevent_req_received: void (struct tevent_req *)
+tevent_req_set_callback: void (struct tevent_req *, tevent_req_fn, void *)
+tevent_req_set_cancel_fn: void (struct tevent_req *, tevent_req_cancel_fn)
+tevent_req_set_cleanup_fn: void (struct tevent_req *, tevent_req_cleanup_fn)
+tevent_req_set_endtime: bool (struct tevent_req *, struct tevent_context *, struct timeval)
+tevent_req_set_print_fn: void (struct tevent_req *, tevent_req_print_fn)
+tevent_sa_info_queue_count: size_t (void)
+tevent_set_abort_fn: void (void (*)(const char *))
+tevent_set_debug: int (struct tevent_context *, void (*)(void *, enum tevent_debug_level, const char *, va_list), void *)
+tevent_set_debug_stderr: int (struct tevent_context *)
+tevent_set_default_backend: void (const char *)
+tevent_set_trace_callback: void (struct tevent_context *, tevent_trace_callback_t, void *)
+tevent_signal_support: bool (struct tevent_context *)
+tevent_timeval_add: struct timeval (const struct timeval *, uint32_t, uint32_t)
+tevent_timeval_compare: int (const struct timeval *, const struct timeval *)
+tevent_timeval_current: struct timeval (void)
+tevent_timeval_current_ofs: struct timeval (uint32_t, uint32_t)
+tevent_timeval_is_zero: bool (const struct timeval *)
+tevent_timeval_set: struct timeval (uint32_t, uint32_t)
+tevent_timeval_until: struct timeval (const struct timeval *, const struct timeval *)
+tevent_timeval_zero: struct timeval (void)
+tevent_trace_point_callback: void (struct tevent_context *, enum tevent_trace_point)
+tevent_wakeup_recv: bool (struct tevent_req *)
+tevent_wakeup_send: struct tevent_req *(TALLOC_CTX *, struct tevent_context *, struct timeval)
diff --git a/lib/tevent/ABI/tevent-0.9.25.sigs b/lib/tevent/ABI/tevent-0.9.25.sigs
new file mode 100644
index 0000000..d8b9f4b
--- /dev/null
+++ b/lib/tevent/ABI/tevent-0.9.25.sigs
@@ -0,0 +1,88 @@
+_tevent_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+_tevent_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+_tevent_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+_tevent_create_immediate: struct tevent_immediate *(TALLOC_CTX *, const char *)
+_tevent_loop_once: int (struct tevent_context *, const char *)
+_tevent_loop_until: int (struct tevent_context *, bool (*)(void *), void *, const char *)
+_tevent_loop_wait: int (struct tevent_context *, const char *)
+_tevent_queue_create: struct tevent_queue *(TALLOC_CTX *, const char *, const char *)
+_tevent_req_callback_data: void *(struct tevent_req *)
+_tevent_req_cancel: bool (struct tevent_req *, const char *)
+_tevent_req_create: struct tevent_req *(TALLOC_CTX *, void *, size_t, const char *, const char *)
+_tevent_req_data: void *(struct tevent_req *)
+_tevent_req_done: void (struct tevent_req *, const char *)
+_tevent_req_error: bool (struct tevent_req *, uint64_t, const char *)
+_tevent_req_nomem: bool (const void *, struct tevent_req *, const char *)
+_tevent_req_notify_callback: void (struct tevent_req *, const char *)
+_tevent_req_oom: void (struct tevent_req *, const char *)
+_tevent_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_backend_list: const char **(TALLOC_CTX *)
+tevent_cleanup_pending_signal_handlers: void (struct tevent_signal *)
+tevent_common_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+tevent_common_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+tevent_common_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+tevent_common_add_timer_v2: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+tevent_common_check_signal: int (struct tevent_context *)
+tevent_common_context_destructor: int (struct tevent_context *)
+tevent_common_fd_destructor: int (struct tevent_fd *)
+tevent_common_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_common_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_common_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_common_loop_immediate: bool (struct tevent_context *)
+tevent_common_loop_timer_delay: struct timeval (struct tevent_context *)
+tevent_common_loop_wait: int (struct tevent_context *, const char *)
+tevent_common_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_context_init: struct tevent_context *(TALLOC_CTX *)
+tevent_context_init_byname: struct tevent_context *(TALLOC_CTX *, const char *)
+tevent_context_init_ops: struct tevent_context *(TALLOC_CTX *, const struct tevent_ops *, void *)
+tevent_debug: void (struct tevent_context *, enum tevent_debug_level, const char *, ...)
+tevent_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_fd_set_auto_close: void (struct tevent_fd *)
+tevent_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_get_trace_callback: void (struct tevent_context *, tevent_trace_callback_t *, void *)
+tevent_loop_allow_nesting: void (struct tevent_context *)
+tevent_loop_set_nesting_hook: void (struct tevent_context *, tevent_nesting_hook, void *)
+tevent_num_signals: size_t (void)
+tevent_queue_add: bool (struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_add_entry: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_add_optimize_empty: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_length: size_t (struct tevent_queue *)
+tevent_queue_running: bool (struct tevent_queue *)
+tevent_queue_start: void (struct tevent_queue *)
+tevent_queue_stop: void (struct tevent_queue *)
+tevent_queue_wait_recv: bool (struct tevent_req *)
+tevent_queue_wait_send: struct tevent_req *(TALLOC_CTX *, struct tevent_context *, struct tevent_queue *)
+tevent_re_initialise: int (struct tevent_context *)
+tevent_register_backend: bool (const char *, const struct tevent_ops *)
+tevent_req_default_print: char *(struct tevent_req *, TALLOC_CTX *)
+tevent_req_defer_callback: void (struct tevent_req *, struct tevent_context *)
+tevent_req_is_error: bool (struct tevent_req *, enum tevent_req_state *, uint64_t *)
+tevent_req_is_in_progress: bool (struct tevent_req *)
+tevent_req_poll: bool (struct tevent_req *, struct tevent_context *)
+tevent_req_post: struct tevent_req *(struct tevent_req *, struct tevent_context *)
+tevent_req_print: char *(TALLOC_CTX *, struct tevent_req *)
+tevent_req_received: void (struct tevent_req *)
+tevent_req_set_callback: void (struct tevent_req *, tevent_req_fn, void *)
+tevent_req_set_cancel_fn: void (struct tevent_req *, tevent_req_cancel_fn)
+tevent_req_set_cleanup_fn: void (struct tevent_req *, tevent_req_cleanup_fn)
+tevent_req_set_endtime: bool (struct tevent_req *, struct tevent_context *, struct timeval)
+tevent_req_set_print_fn: void (struct tevent_req *, tevent_req_print_fn)
+tevent_sa_info_queue_count: size_t (void)
+tevent_set_abort_fn: void (void (*)(const char *))
+tevent_set_debug: int (struct tevent_context *, void (*)(void *, enum tevent_debug_level, const char *, va_list), void *)
+tevent_set_debug_stderr: int (struct tevent_context *)
+tevent_set_default_backend: void (const char *)
+tevent_set_trace_callback: void (struct tevent_context *, tevent_trace_callback_t, void *)
+tevent_signal_support: bool (struct tevent_context *)
+tevent_timeval_add: struct timeval (const struct timeval *, uint32_t, uint32_t)
+tevent_timeval_compare: int (const struct timeval *, const struct timeval *)
+tevent_timeval_current: struct timeval (void)
+tevent_timeval_current_ofs: struct timeval (uint32_t, uint32_t)
+tevent_timeval_is_zero: bool (const struct timeval *)
+tevent_timeval_set: struct timeval (uint32_t, uint32_t)
+tevent_timeval_until: struct timeval (const struct timeval *, const struct timeval *)
+tevent_timeval_zero: struct timeval (void)
+tevent_trace_point_callback: void (struct tevent_context *, enum tevent_trace_point)
+tevent_wakeup_recv: bool (struct tevent_req *)
+tevent_wakeup_send: struct tevent_req *(TALLOC_CTX *, struct tevent_context *, struct timeval)
diff --git a/lib/tevent/ABI/tevent-0.9.26.sigs b/lib/tevent/ABI/tevent-0.9.26.sigs
new file mode 100644
index 0000000..1357751
--- /dev/null
+++ b/lib/tevent/ABI/tevent-0.9.26.sigs
@@ -0,0 +1,90 @@
+_tevent_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+_tevent_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+_tevent_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+_tevent_create_immediate: struct tevent_immediate *(TALLOC_CTX *, const char *)
+_tevent_loop_once: int (struct tevent_context *, const char *)
+_tevent_loop_until: int (struct tevent_context *, bool (*)(void *), void *, const char *)
+_tevent_loop_wait: int (struct tevent_context *, const char *)
+_tevent_queue_create: struct tevent_queue *(TALLOC_CTX *, const char *, const char *)
+_tevent_req_callback_data: void *(struct tevent_req *)
+_tevent_req_cancel: bool (struct tevent_req *, const char *)
+_tevent_req_create: struct tevent_req *(TALLOC_CTX *, void *, size_t, const char *, const char *)
+_tevent_req_data: void *(struct tevent_req *)
+_tevent_req_done: void (struct tevent_req *, const char *)
+_tevent_req_error: bool (struct tevent_req *, uint64_t, const char *)
+_tevent_req_nomem: bool (const void *, struct tevent_req *, const char *)
+_tevent_req_notify_callback: void (struct tevent_req *, const char *)
+_tevent_req_oom: void (struct tevent_req *, const char *)
+_tevent_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_backend_list: const char **(TALLOC_CTX *)
+tevent_cleanup_pending_signal_handlers: void (struct tevent_signal *)
+tevent_common_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+tevent_common_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+tevent_common_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+tevent_common_add_timer_v2: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+tevent_common_check_signal: int (struct tevent_context *)
+tevent_common_context_destructor: int (struct tevent_context *)
+tevent_common_fd_destructor: int (struct tevent_fd *)
+tevent_common_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_common_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_common_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_common_loop_immediate: bool (struct tevent_context *)
+tevent_common_loop_timer_delay: struct timeval (struct tevent_context *)
+tevent_common_loop_wait: int (struct tevent_context *, const char *)
+tevent_common_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_context_init: struct tevent_context *(TALLOC_CTX *)
+tevent_context_init_byname: struct tevent_context *(TALLOC_CTX *, const char *)
+tevent_context_init_ops: struct tevent_context *(TALLOC_CTX *, const struct tevent_ops *, void *)
+tevent_debug: void (struct tevent_context *, enum tevent_debug_level, const char *, ...)
+tevent_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_fd_set_auto_close: void (struct tevent_fd *)
+tevent_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_get_trace_callback: void (struct tevent_context *, tevent_trace_callback_t *, void *)
+tevent_loop_allow_nesting: void (struct tevent_context *)
+tevent_loop_set_nesting_hook: void (struct tevent_context *, tevent_nesting_hook, void *)
+tevent_num_signals: size_t (void)
+tevent_queue_add: bool (struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_add_entry: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_add_optimize_empty: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_length: size_t (struct tevent_queue *)
+tevent_queue_running: bool (struct tevent_queue *)
+tevent_queue_start: void (struct tevent_queue *)
+tevent_queue_stop: void (struct tevent_queue *)
+tevent_queue_wait_recv: bool (struct tevent_req *)
+tevent_queue_wait_send: struct tevent_req *(TALLOC_CTX *, struct tevent_context *, struct tevent_queue *)
+tevent_re_initialise: int (struct tevent_context *)
+tevent_register_backend: bool (const char *, const struct tevent_ops *)
+tevent_req_default_print: char *(struct tevent_req *, TALLOC_CTX *)
+tevent_req_defer_callback: void (struct tevent_req *, struct tevent_context *)
+tevent_req_is_error: bool (struct tevent_req *, enum tevent_req_state *, uint64_t *)
+tevent_req_is_in_progress: bool (struct tevent_req *)
+tevent_req_poll: bool (struct tevent_req *, struct tevent_context *)
+tevent_req_post: struct tevent_req *(struct tevent_req *, struct tevent_context *)
+tevent_req_print: char *(TALLOC_CTX *, struct tevent_req *)
+tevent_req_received: void (struct tevent_req *)
+tevent_req_set_callback: void (struct tevent_req *, tevent_req_fn, void *)
+tevent_req_set_cancel_fn: void (struct tevent_req *, tevent_req_cancel_fn)
+tevent_req_set_cleanup_fn: void (struct tevent_req *, tevent_req_cleanup_fn)
+tevent_req_set_endtime: bool (struct tevent_req *, struct tevent_context *, struct timeval)
+tevent_req_set_print_fn: void (struct tevent_req *, tevent_req_print_fn)
+tevent_sa_info_queue_count: size_t (void)
+tevent_set_abort_fn: void (void (*)(const char *))
+tevent_set_debug: int (struct tevent_context *, void (*)(void *, enum tevent_debug_level, const char *, va_list), void *)
+tevent_set_debug_stderr: int (struct tevent_context *)
+tevent_set_default_backend: void (const char *)
+tevent_set_trace_callback: void (struct tevent_context *, tevent_trace_callback_t, void *)
+tevent_signal_support: bool (struct tevent_context *)
+tevent_thread_proxy_create: struct tevent_thread_proxy *(struct tevent_context *)
+tevent_thread_proxy_schedule: void (struct tevent_thread_proxy *, struct tevent_immediate **, tevent_immediate_handler_t, void *)
+tevent_timeval_add: struct timeval (const struct timeval *, uint32_t, uint32_t)
+tevent_timeval_compare: int (const struct timeval *, const struct timeval *)
+tevent_timeval_current: struct timeval (void)
+tevent_timeval_current_ofs: struct timeval (uint32_t, uint32_t)
+tevent_timeval_is_zero: bool (const struct timeval *)
+tevent_timeval_set: struct timeval (uint32_t, uint32_t)
+tevent_timeval_until: struct timeval (const struct timeval *, const struct timeval *)
+tevent_timeval_zero: struct timeval (void)
+tevent_trace_point_callback: void (struct tevent_context *, enum tevent_trace_point)
+tevent_wakeup_recv: bool (struct tevent_req *)
+tevent_wakeup_send: struct tevent_req *(TALLOC_CTX *, struct tevent_context *, struct timeval)
diff --git a/lib/tevent/ABI/tevent-0.9.27.sigs b/lib/tevent/ABI/tevent-0.9.27.sigs
new file mode 100644
index 0000000..1357751
--- /dev/null
+++ b/lib/tevent/ABI/tevent-0.9.27.sigs
@@ -0,0 +1,90 @@
+_tevent_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+_tevent_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+_tevent_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+_tevent_create_immediate: struct tevent_immediate *(TALLOC_CTX *, const char *)
+_tevent_loop_once: int (struct tevent_context *, const char *)
+_tevent_loop_until: int (struct tevent_context *, bool (*)(void *), void *, const char *)
+_tevent_loop_wait: int (struct tevent_context *, const char *)
+_tevent_queue_create: struct tevent_queue *(TALLOC_CTX *, const char *, const char *)
+_tevent_req_callback_data: void *(struct tevent_req *)
+_tevent_req_cancel: bool (struct tevent_req *, const char *)
+_tevent_req_create: struct tevent_req *(TALLOC_CTX *, void *, size_t, const char *, const char *)
+_tevent_req_data: void *(struct tevent_req *)
+_tevent_req_done: void (struct tevent_req *, const char *)
+_tevent_req_error: bool (struct tevent_req *, uint64_t, const char *)
+_tevent_req_nomem: bool (const void *, struct tevent_req *, const char *)
+_tevent_req_notify_callback: void (struct tevent_req *, const char *)
+_tevent_req_oom: void (struct tevent_req *, const char *)
+_tevent_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_backend_list: const char **(TALLOC_CTX *)
+tevent_cleanup_pending_signal_handlers: void (struct tevent_signal *)
+tevent_common_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+tevent_common_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+tevent_common_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+tevent_common_add_timer_v2: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+tevent_common_check_signal: int (struct tevent_context *)
+tevent_common_context_destructor: int (struct tevent_context *)
+tevent_common_fd_destructor: int (struct tevent_fd *)
+tevent_common_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_common_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_common_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_common_loop_immediate: bool (struct tevent_context *)
+tevent_common_loop_timer_delay: struct timeval (struct tevent_context *)
+tevent_common_loop_wait: int (struct tevent_context *, const char *)
+tevent_common_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_context_init: struct tevent_context *(TALLOC_CTX *)
+tevent_context_init_byname: struct tevent_context *(TALLOC_CTX *, const char *)
+tevent_context_init_ops: struct tevent_context *(TALLOC_CTX *, const struct tevent_ops *, void *)
+tevent_debug: void (struct tevent_context *, enum tevent_debug_level, const char *, ...)
+tevent_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_fd_set_auto_close: void (struct tevent_fd *)
+tevent_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_get_trace_callback: void (struct tevent_context *, tevent_trace_callback_t *, void *)
+tevent_loop_allow_nesting: void (struct tevent_context *)
+tevent_loop_set_nesting_hook: void (struct tevent_context *, tevent_nesting_hook, void *)
+tevent_num_signals: size_t (void)
+tevent_queue_add: bool (struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_add_entry: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_add_optimize_empty: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_length: size_t (struct tevent_queue *)
+tevent_queue_running: bool (struct tevent_queue *)
+tevent_queue_start: void (struct tevent_queue *)
+tevent_queue_stop: void (struct tevent_queue *)
+tevent_queue_wait_recv: bool (struct tevent_req *)
+tevent_queue_wait_send: struct tevent_req *(TALLOC_CTX *, struct tevent_context *, struct tevent_queue *)
+tevent_re_initialise: int (struct tevent_context *)
+tevent_register_backend: bool (const char *, const struct tevent_ops *)
+tevent_req_default_print: char *(struct tevent_req *, TALLOC_CTX *)
+tevent_req_defer_callback: void (struct tevent_req *, struct tevent_context *)
+tevent_req_is_error: bool (struct tevent_req *, enum tevent_req_state *, uint64_t *)
+tevent_req_is_in_progress: bool (struct tevent_req *)
+tevent_req_poll: bool (struct tevent_req *, struct tevent_context *)
+tevent_req_post: struct tevent_req *(struct tevent_req *, struct tevent_context *)
+tevent_req_print: char *(TALLOC_CTX *, struct tevent_req *)
+tevent_req_received: void (struct tevent_req *)
+tevent_req_set_callback: void (struct tevent_req *, tevent_req_fn, void *)
+tevent_req_set_cancel_fn: void (struct tevent_req *, tevent_req_cancel_fn)
+tevent_req_set_cleanup_fn: void (struct tevent_req *, tevent_req_cleanup_fn)
+tevent_req_set_endtime: bool (struct tevent_req *, struct tevent_context *, struct timeval)
+tevent_req_set_print_fn: void (struct tevent_req *, tevent_req_print_fn)
+tevent_sa_info_queue_count: size_t (void)
+tevent_set_abort_fn: void (void (*)(const char *))
+tevent_set_debug: int (struct tevent_context *, void (*)(void *, enum tevent_debug_level, const char *, va_list), void *)
+tevent_set_debug_stderr: int (struct tevent_context *)
+tevent_set_default_backend: void (const char *)
+tevent_set_trace_callback: void (struct tevent_context *, tevent_trace_callback_t, void *)
+tevent_signal_support: bool (struct tevent_context *)
+tevent_thread_proxy_create: struct tevent_thread_proxy *(struct tevent_context *)
+tevent_thread_proxy_schedule: void (struct tevent_thread_proxy *, struct tevent_immediate **, tevent_immediate_handler_t, void *)
+tevent_timeval_add: struct timeval (const struct timeval *, uint32_t, uint32_t)
+tevent_timeval_compare: int (const struct timeval *, const struct timeval *)
+tevent_timeval_current: struct timeval (void)
+tevent_timeval_current_ofs: struct timeval (uint32_t, uint32_t)
+tevent_timeval_is_zero: bool (const struct timeval *)
+tevent_timeval_set: struct timeval (uint32_t, uint32_t)
+tevent_timeval_until: struct timeval (const struct timeval *, const struct timeval *)
+tevent_timeval_zero: struct timeval (void)
+tevent_trace_point_callback: void (struct tevent_context *, enum tevent_trace_point)
+tevent_wakeup_recv: bool (struct tevent_req *)
+tevent_wakeup_send: struct tevent_req *(TALLOC_CTX *, struct tevent_context *, struct timeval)
diff --git a/lib/tevent/ABI/tevent-0.9.28.sigs b/lib/tevent/ABI/tevent-0.9.28.sigs
new file mode 100644
index 0000000..1357751
--- /dev/null
+++ b/lib/tevent/ABI/tevent-0.9.28.sigs
@@ -0,0 +1,90 @@
+_tevent_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+_tevent_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+_tevent_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+_tevent_create_immediate: struct tevent_immediate *(TALLOC_CTX *, const char *)
+_tevent_loop_once: int (struct tevent_context *, const char *)
+_tevent_loop_until: int (struct tevent_context *, bool (*)(void *), void *, const char *)
+_tevent_loop_wait: int (struct tevent_context *, const char *)
+_tevent_queue_create: struct tevent_queue *(TALLOC_CTX *, const char *, const char *)
+_tevent_req_callback_data: void *(struct tevent_req *)
+_tevent_req_cancel: bool (struct tevent_req *, const char *)
+_tevent_req_create: struct tevent_req *(TALLOC_CTX *, void *, size_t, const char *, const char *)
+_tevent_req_data: void *(struct tevent_req *)
+_tevent_req_done: void (struct tevent_req *, const char *)
+_tevent_req_error: bool (struct tevent_req *, uint64_t, const char *)
+_tevent_req_nomem: bool (const void *, struct tevent_req *, const char *)
+_tevent_req_notify_callback: void (struct tevent_req *, const char *)
+_tevent_req_oom: void (struct tevent_req *, const char *)
+_tevent_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_backend_list: const char **(TALLOC_CTX *)
+tevent_cleanup_pending_signal_handlers: void (struct tevent_signal *)
+tevent_common_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+tevent_common_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+tevent_common_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+tevent_common_add_timer_v2: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+tevent_common_check_signal: int (struct tevent_context *)
+tevent_common_context_destructor: int (struct tevent_context *)
+tevent_common_fd_destructor: int (struct tevent_fd *)
+tevent_common_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_common_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_common_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_common_loop_immediate: bool (struct tevent_context *)
+tevent_common_loop_timer_delay: struct timeval (struct tevent_context *)
+tevent_common_loop_wait: int (struct tevent_context *, const char *)
+tevent_common_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_context_init: struct tevent_context *(TALLOC_CTX *)
+tevent_context_init_byname: struct tevent_context *(TALLOC_CTX *, const char *)
+tevent_context_init_ops: struct tevent_context *(TALLOC_CTX *, const struct tevent_ops *, void *)
+tevent_debug: void (struct tevent_context *, enum tevent_debug_level, const char *, ...)
+tevent_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_fd_set_auto_close: void (struct tevent_fd *)
+tevent_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_get_trace_callback: void (struct tevent_context *, tevent_trace_callback_t *, void *)
+tevent_loop_allow_nesting: void (struct tevent_context *)
+tevent_loop_set_nesting_hook: void (struct tevent_context *, tevent_nesting_hook, void *)
+tevent_num_signals: size_t (void)
+tevent_queue_add: bool (struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_add_entry: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_add_optimize_empty: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_length: size_t (struct tevent_queue *)
+tevent_queue_running: bool (struct tevent_queue *)
+tevent_queue_start: void (struct tevent_queue *)
+tevent_queue_stop: void (struct tevent_queue *)
+tevent_queue_wait_recv: bool (struct tevent_req *)
+tevent_queue_wait_send: struct tevent_req *(TALLOC_CTX *, struct tevent_context *, struct tevent_queue *)
+tevent_re_initialise: int (struct tevent_context *)
+tevent_register_backend: bool (const char *, const struct tevent_ops *)
+tevent_req_default_print: char *(struct tevent_req *, TALLOC_CTX *)
+tevent_req_defer_callback: void (struct tevent_req *, struct tevent_context *)
+tevent_req_is_error: bool (struct tevent_req *, enum tevent_req_state *, uint64_t *)
+tevent_req_is_in_progress: bool (struct tevent_req *)
+tevent_req_poll: bool (struct tevent_req *, struct tevent_context *)
+tevent_req_post: struct tevent_req *(struct tevent_req *, struct tevent_context *)
+tevent_req_print: char *(TALLOC_CTX *, struct tevent_req *)
+tevent_req_received: void (struct tevent_req *)
+tevent_req_set_callback: void (struct tevent_req *, tevent_req_fn, void *)
+tevent_req_set_cancel_fn: void (struct tevent_req *, tevent_req_cancel_fn)
+tevent_req_set_cleanup_fn: void (struct tevent_req *, tevent_req_cleanup_fn)
+tevent_req_set_endtime: bool (struct tevent_req *, struct tevent_context *, struct timeval)
+tevent_req_set_print_fn: void (struct tevent_req *, tevent_req_print_fn)
+tevent_sa_info_queue_count: size_t (void)
+tevent_set_abort_fn: void (void (*)(const char *))
+tevent_set_debug: int (struct tevent_context *, void (*)(void *, enum tevent_debug_level, const char *, va_list), void *)
+tevent_set_debug_stderr: int (struct tevent_context *)
+tevent_set_default_backend: void (const char *)
+tevent_set_trace_callback: void (struct tevent_context *, tevent_trace_callback_t, void *)
+tevent_signal_support: bool (struct tevent_context *)
+tevent_thread_proxy_create: struct tevent_thread_proxy *(struct tevent_context *)
+tevent_thread_proxy_schedule: void (struct tevent_thread_proxy *, struct tevent_immediate **, tevent_immediate_handler_t, void *)
+tevent_timeval_add: struct timeval (const struct timeval *, uint32_t, uint32_t)
+tevent_timeval_compare: int (const struct timeval *, const struct timeval *)
+tevent_timeval_current: struct timeval (void)
+tevent_timeval_current_ofs: struct timeval (uint32_t, uint32_t)
+tevent_timeval_is_zero: bool (const struct timeval *)
+tevent_timeval_set: struct timeval (uint32_t, uint32_t)
+tevent_timeval_until: struct timeval (const struct timeval *, const struct timeval *)
+tevent_timeval_zero: struct timeval (void)
+tevent_trace_point_callback: void (struct tevent_context *, enum tevent_trace_point)
+tevent_wakeup_recv: bool (struct tevent_req *)
+tevent_wakeup_send: struct tevent_req *(TALLOC_CTX *, struct tevent_context *, struct timeval)
diff --git a/lib/tevent/ABI/tevent-0.9.29.sigs b/lib/tevent/ABI/tevent-0.9.29.sigs
new file mode 100644
index 0000000..1357751
--- /dev/null
+++ b/lib/tevent/ABI/tevent-0.9.29.sigs
@@ -0,0 +1,90 @@
+_tevent_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+_tevent_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+_tevent_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+_tevent_create_immediate: struct tevent_immediate *(TALLOC_CTX *, const char *)
+_tevent_loop_once: int (struct tevent_context *, const char *)
+_tevent_loop_until: int (struct tevent_context *, bool (*)(void *), void *, const char *)
+_tevent_loop_wait: int (struct tevent_context *, const char *)
+_tevent_queue_create: struct tevent_queue *(TALLOC_CTX *, const char *, const char *)
+_tevent_req_callback_data: void *(struct tevent_req *)
+_tevent_req_cancel: bool (struct tevent_req *, const char *)
+_tevent_req_create: struct tevent_req *(TALLOC_CTX *, void *, size_t, const char *, const char *)
+_tevent_req_data: void *(struct tevent_req *)
+_tevent_req_done: void (struct tevent_req *, const char *)
+_tevent_req_error: bool (struct tevent_req *, uint64_t, const char *)
+_tevent_req_nomem: bool (const void *, struct tevent_req *, const char *)
+_tevent_req_notify_callback: void (struct tevent_req *, const char *)
+_tevent_req_oom: void (struct tevent_req *, const char *)
+_tevent_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_backend_list: const char **(TALLOC_CTX *)
+tevent_cleanup_pending_signal_handlers: void (struct tevent_signal *)
+tevent_common_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+tevent_common_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+tevent_common_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+tevent_common_add_timer_v2: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+tevent_common_check_signal: int (struct tevent_context *)
+tevent_common_context_destructor: int (struct tevent_context *)
+tevent_common_fd_destructor: int (struct tevent_fd *)
+tevent_common_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_common_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_common_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_common_loop_immediate: bool (struct tevent_context *)
+tevent_common_loop_timer_delay: struct timeval (struct tevent_context *)
+tevent_common_loop_wait: int (struct tevent_context *, const char *)
+tevent_common_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_context_init: struct tevent_context *(TALLOC_CTX *)
+tevent_context_init_byname: struct tevent_context *(TALLOC_CTX *, const char *)
+tevent_context_init_ops: struct tevent_context *(TALLOC_CTX *, const struct tevent_ops *, void *)
+tevent_debug: void (struct tevent_context *, enum tevent_debug_level, const char *, ...)
+tevent_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_fd_set_auto_close: void (struct tevent_fd *)
+tevent_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_get_trace_callback: void (struct tevent_context *, tevent_trace_callback_t *, void *)
+tevent_loop_allow_nesting: void (struct tevent_context *)
+tevent_loop_set_nesting_hook: void (struct tevent_context *, tevent_nesting_hook, void *)
+tevent_num_signals: size_t (void)
+tevent_queue_add: bool (struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_add_entry: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_add_optimize_empty: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_length: size_t (struct tevent_queue *)
+tevent_queue_running: bool (struct tevent_queue *)
+tevent_queue_start: void (struct tevent_queue *)
+tevent_queue_stop: void (struct tevent_queue *)
+tevent_queue_wait_recv: bool (struct tevent_req *)
+tevent_queue_wait_send: struct tevent_req *(TALLOC_CTX *, struct tevent_context *, struct tevent_queue *)
+tevent_re_initialise: int (struct tevent_context *)
+tevent_register_backend: bool (const char *, const struct tevent_ops *)
+tevent_req_default_print: char *(struct tevent_req *, TALLOC_CTX *)
+tevent_req_defer_callback: void (struct tevent_req *, struct tevent_context *)
+tevent_req_is_error: bool (struct tevent_req *, enum tevent_req_state *, uint64_t *)
+tevent_req_is_in_progress: bool (struct tevent_req *)
+tevent_req_poll: bool (struct tevent_req *, struct tevent_context *)
+tevent_req_post: struct tevent_req *(struct tevent_req *, struct tevent_context *)
+tevent_req_print: char *(TALLOC_CTX *, struct tevent_req *)
+tevent_req_received: void (struct tevent_req *)
+tevent_req_set_callback: void (struct tevent_req *, tevent_req_fn, void *)
+tevent_req_set_cancel_fn: void (struct tevent_req *, tevent_req_cancel_fn)
+tevent_req_set_cleanup_fn: void (struct tevent_req *, tevent_req_cleanup_fn)
+tevent_req_set_endtime: bool (struct tevent_req *, struct tevent_context *, struct timeval)
+tevent_req_set_print_fn: void (struct tevent_req *, tevent_req_print_fn)
+tevent_sa_info_queue_count: size_t (void)
+tevent_set_abort_fn: void (void (*)(const char *))
+tevent_set_debug: int (struct tevent_context *, void (*)(void *, enum tevent_debug_level, const char *, va_list), void *)
+tevent_set_debug_stderr: int (struct tevent_context *)
+tevent_set_default_backend: void (const char *)
+tevent_set_trace_callback: void (struct tevent_context *, tevent_trace_callback_t, void *)
+tevent_signal_support: bool (struct tevent_context *)
+tevent_thread_proxy_create: struct tevent_thread_proxy *(struct tevent_context *)
+tevent_thread_proxy_schedule: void (struct tevent_thread_proxy *, struct tevent_immediate **, tevent_immediate_handler_t, void *)
+tevent_timeval_add: struct timeval (const struct timeval *, uint32_t, uint32_t)
+tevent_timeval_compare: int (const struct timeval *, const struct timeval *)
+tevent_timeval_current: struct timeval (void)
+tevent_timeval_current_ofs: struct timeval (uint32_t, uint32_t)
+tevent_timeval_is_zero: bool (const struct timeval *)
+tevent_timeval_set: struct timeval (uint32_t, uint32_t)
+tevent_timeval_until: struct timeval (const struct timeval *, const struct timeval *)
+tevent_timeval_zero: struct timeval (void)
+tevent_trace_point_callback: void (struct tevent_context *, enum tevent_trace_point)
+tevent_wakeup_recv: bool (struct tevent_req *)
+tevent_wakeup_send: struct tevent_req *(TALLOC_CTX *, struct tevent_context *, struct timeval)
diff --git a/lib/tevent/ABI/tevent-0.9.30.sigs b/lib/tevent/ABI/tevent-0.9.30.sigs
new file mode 100644
index 0000000..9b8bfa1
--- /dev/null
+++ b/lib/tevent/ABI/tevent-0.9.30.sigs
@@ -0,0 +1,96 @@
+_tevent_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+_tevent_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+_tevent_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+_tevent_create_immediate: struct tevent_immediate *(TALLOC_CTX *, const char *)
+_tevent_loop_once: int (struct tevent_context *, const char *)
+_tevent_loop_until: int (struct tevent_context *, bool (*)(void *), void *, const char *)
+_tevent_loop_wait: int (struct tevent_context *, const char *)
+_tevent_queue_create: struct tevent_queue *(TALLOC_CTX *, const char *, const char *)
+_tevent_req_callback_data: void *(struct tevent_req *)
+_tevent_req_cancel: bool (struct tevent_req *, const char *)
+_tevent_req_create: struct tevent_req *(TALLOC_CTX *, void *, size_t, const char *, const char *)
+_tevent_req_data: void *(struct tevent_req *)
+_tevent_req_done: void (struct tevent_req *, const char *)
+_tevent_req_error: bool (struct tevent_req *, uint64_t, const char *)
+_tevent_req_nomem: bool (const void *, struct tevent_req *, const char *)
+_tevent_req_notify_callback: void (struct tevent_req *, const char *)
+_tevent_req_oom: void (struct tevent_req *, const char *)
+_tevent_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+_tevent_threaded_schedule_immediate: void (struct tevent_threaded_context *, struct tevent_immediate *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_backend_list: const char **(TALLOC_CTX *)
+tevent_cleanup_pending_signal_handlers: void (struct tevent_signal *)
+tevent_common_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+tevent_common_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+tevent_common_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+tevent_common_add_timer_v2: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+tevent_common_check_signal: int (struct tevent_context *)
+tevent_common_context_destructor: int (struct tevent_context *)
+tevent_common_fd_destructor: int (struct tevent_fd *)
+tevent_common_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_common_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_common_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_common_have_events: bool (struct tevent_context *)
+tevent_common_loop_immediate: bool (struct tevent_context *)
+tevent_common_loop_timer_delay: struct timeval (struct tevent_context *)
+tevent_common_loop_wait: int (struct tevent_context *, const char *)
+tevent_common_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_common_threaded_activate_immediate: void (struct tevent_context *)
+tevent_common_wakeup: int (struct tevent_context *)
+tevent_common_wakeup_init: int (struct tevent_context *)
+tevent_context_init: struct tevent_context *(TALLOC_CTX *)
+tevent_context_init_byname: struct tevent_context *(TALLOC_CTX *, const char *)
+tevent_context_init_ops: struct tevent_context *(TALLOC_CTX *, const struct tevent_ops *, void *)
+tevent_debug: void (struct tevent_context *, enum tevent_debug_level, const char *, ...)
+tevent_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_fd_set_auto_close: void (struct tevent_fd *)
+tevent_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_get_trace_callback: void (struct tevent_context *, tevent_trace_callback_t *, void *)
+tevent_loop_allow_nesting: void (struct tevent_context *)
+tevent_loop_set_nesting_hook: void (struct tevent_context *, tevent_nesting_hook, void *)
+tevent_num_signals: size_t (void)
+tevent_queue_add: bool (struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_add_entry: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_add_optimize_empty: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_length: size_t (struct tevent_queue *)
+tevent_queue_running: bool (struct tevent_queue *)
+tevent_queue_start: void (struct tevent_queue *)
+tevent_queue_stop: void (struct tevent_queue *)
+tevent_queue_wait_recv: bool (struct tevent_req *)
+tevent_queue_wait_send: struct tevent_req *(TALLOC_CTX *, struct tevent_context *, struct tevent_queue *)
+tevent_re_initialise: int (struct tevent_context *)
+tevent_register_backend: bool (const char *, const struct tevent_ops *)
+tevent_req_default_print: char *(struct tevent_req *, TALLOC_CTX *)
+tevent_req_defer_callback: void (struct tevent_req *, struct tevent_context *)
+tevent_req_is_error: bool (struct tevent_req *, enum tevent_req_state *, uint64_t *)
+tevent_req_is_in_progress: bool (struct tevent_req *)
+tevent_req_poll: bool (struct tevent_req *, struct tevent_context *)
+tevent_req_post: struct tevent_req *(struct tevent_req *, struct tevent_context *)
+tevent_req_print: char *(TALLOC_CTX *, struct tevent_req *)
+tevent_req_received: void (struct tevent_req *)
+tevent_req_set_callback: void (struct tevent_req *, tevent_req_fn, void *)
+tevent_req_set_cancel_fn: void (struct tevent_req *, tevent_req_cancel_fn)
+tevent_req_set_cleanup_fn: void (struct tevent_req *, tevent_req_cleanup_fn)
+tevent_req_set_endtime: bool (struct tevent_req *, struct tevent_context *, struct timeval)
+tevent_req_set_print_fn: void (struct tevent_req *, tevent_req_print_fn)
+tevent_sa_info_queue_count: size_t (void)
+tevent_set_abort_fn: void (void (*)(const char *))
+tevent_set_debug: int (struct tevent_context *, void (*)(void *, enum tevent_debug_level, const char *, va_list), void *)
+tevent_set_debug_stderr: int (struct tevent_context *)
+tevent_set_default_backend: void (const char *)
+tevent_set_trace_callback: void (struct tevent_context *, tevent_trace_callback_t, void *)
+tevent_signal_support: bool (struct tevent_context *)
+tevent_thread_proxy_create: struct tevent_thread_proxy *(struct tevent_context *)
+tevent_thread_proxy_schedule: void (struct tevent_thread_proxy *, struct tevent_immediate **, tevent_immediate_handler_t, void *)
+tevent_threaded_context_create: struct tevent_threaded_context *(TALLOC_CTX *, struct tevent_context *)
+tevent_timeval_add: struct timeval (const struct timeval *, uint32_t, uint32_t)
+tevent_timeval_compare: int (const struct timeval *, const struct timeval *)
+tevent_timeval_current: struct timeval (void)
+tevent_timeval_current_ofs: struct timeval (uint32_t, uint32_t)
+tevent_timeval_is_zero: bool (const struct timeval *)
+tevent_timeval_set: struct timeval (uint32_t, uint32_t)
+tevent_timeval_until: struct timeval (const struct timeval *, const struct timeval *)
+tevent_timeval_zero: struct timeval (void)
+tevent_trace_point_callback: void (struct tevent_context *, enum tevent_trace_point)
+tevent_wakeup_recv: bool (struct tevent_req *)
+tevent_wakeup_send: struct tevent_req *(TALLOC_CTX *, struct tevent_context *, struct timeval)
diff --git a/lib/tevent/ABI/tevent-0.9.31.sigs b/lib/tevent/ABI/tevent-0.9.31.sigs
new file mode 100644
index 0000000..7a6a236
--- /dev/null
+++ b/lib/tevent/ABI/tevent-0.9.31.sigs
@@ -0,0 +1,99 @@
+_tevent_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+_tevent_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+_tevent_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+_tevent_create_immediate: struct tevent_immediate *(TALLOC_CTX *, const char *)
+_tevent_loop_once: int (struct tevent_context *, const char *)
+_tevent_loop_until: int (struct tevent_context *, bool (*)(void *), void *, const char *)
+_tevent_loop_wait: int (struct tevent_context *, const char *)
+_tevent_queue_create: struct tevent_queue *(TALLOC_CTX *, const char *, const char *)
+_tevent_req_callback_data: void *(struct tevent_req *)
+_tevent_req_cancel: bool (struct tevent_req *, const char *)
+_tevent_req_create: struct tevent_req *(TALLOC_CTX *, void *, size_t, const char *, const char *)
+_tevent_req_data: void *(struct tevent_req *)
+_tevent_req_done: void (struct tevent_req *, const char *)
+_tevent_req_error: bool (struct tevent_req *, uint64_t, const char *)
+_tevent_req_nomem: bool (const void *, struct tevent_req *, const char *)
+_tevent_req_notify_callback: void (struct tevent_req *, const char *)
+_tevent_req_oom: void (struct tevent_req *, const char *)
+_tevent_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+_tevent_threaded_schedule_immediate: void (struct tevent_threaded_context *, struct tevent_immediate *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_backend_list: const char **(TALLOC_CTX *)
+tevent_cleanup_pending_signal_handlers: void (struct tevent_signal *)
+tevent_common_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+tevent_common_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+tevent_common_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+tevent_common_add_timer_v2: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+tevent_common_check_signal: int (struct tevent_context *)
+tevent_common_context_destructor: int (struct tevent_context *)
+tevent_common_fd_destructor: int (struct tevent_fd *)
+tevent_common_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_common_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_common_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_common_have_events: bool (struct tevent_context *)
+tevent_common_loop_immediate: bool (struct tevent_context *)
+tevent_common_loop_timer_delay: struct timeval (struct tevent_context *)
+tevent_common_loop_wait: int (struct tevent_context *, const char *)
+tevent_common_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_common_threaded_activate_immediate: void (struct tevent_context *)
+tevent_common_wakeup: int (struct tevent_context *)
+tevent_common_wakeup_fd: int (int)
+tevent_common_wakeup_init: int (struct tevent_context *)
+tevent_context_init: struct tevent_context *(TALLOC_CTX *)
+tevent_context_init_byname: struct tevent_context *(TALLOC_CTX *, const char *)
+tevent_context_init_ops: struct tevent_context *(TALLOC_CTX *, const struct tevent_ops *, void *)
+tevent_debug: void (struct tevent_context *, enum tevent_debug_level, const char *, ...)
+tevent_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_fd_set_auto_close: void (struct tevent_fd *)
+tevent_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_get_trace_callback: void (struct tevent_context *, tevent_trace_callback_t *, void *)
+tevent_loop_allow_nesting: void (struct tevent_context *)
+tevent_loop_set_nesting_hook: void (struct tevent_context *, tevent_nesting_hook, void *)
+tevent_num_signals: size_t (void)
+tevent_queue_add: bool (struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_add_entry: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_add_optimize_empty: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_length: size_t (struct tevent_queue *)
+tevent_queue_running: bool (struct tevent_queue *)
+tevent_queue_start: void (struct tevent_queue *)
+tevent_queue_stop: void (struct tevent_queue *)
+tevent_queue_wait_recv: bool (struct tevent_req *)
+tevent_queue_wait_send: struct tevent_req *(TALLOC_CTX *, struct tevent_context *, struct tevent_queue *)
+tevent_re_initialise: int (struct tevent_context *)
+tevent_register_backend: bool (const char *, const struct tevent_ops *)
+tevent_req_default_print: char *(struct tevent_req *, TALLOC_CTX *)
+tevent_req_defer_callback: void (struct tevent_req *, struct tevent_context *)
+tevent_req_is_error: bool (struct tevent_req *, enum tevent_req_state *, uint64_t *)
+tevent_req_is_in_progress: bool (struct tevent_req *)
+tevent_req_poll: bool (struct tevent_req *, struct tevent_context *)
+tevent_req_post: struct tevent_req *(struct tevent_req *, struct tevent_context *)
+tevent_req_print: char *(TALLOC_CTX *, struct tevent_req *)
+tevent_req_received: void (struct tevent_req *)
+tevent_req_reset_endtime: void (struct tevent_req *)
+tevent_req_set_callback: void (struct tevent_req *, tevent_req_fn, void *)
+tevent_req_set_cancel_fn: void (struct tevent_req *, tevent_req_cancel_fn)
+tevent_req_set_cleanup_fn: void (struct tevent_req *, tevent_req_cleanup_fn)
+tevent_req_set_endtime: bool (struct tevent_req *, struct tevent_context *, struct timeval)
+tevent_req_set_print_fn: void (struct tevent_req *, tevent_req_print_fn)
+tevent_sa_info_queue_count: size_t (void)
+tevent_set_abort_fn: void (void (*)(const char *))
+tevent_set_debug: int (struct tevent_context *, void (*)(void *, enum tevent_debug_level, const char *, va_list), void *)
+tevent_set_debug_stderr: int (struct tevent_context *)
+tevent_set_default_backend: void (const char *)
+tevent_set_trace_callback: void (struct tevent_context *, tevent_trace_callback_t, void *)
+tevent_signal_support: bool (struct tevent_context *)
+tevent_thread_proxy_create: struct tevent_thread_proxy *(struct tevent_context *)
+tevent_thread_proxy_schedule: void (struct tevent_thread_proxy *, struct tevent_immediate **, tevent_immediate_handler_t, void *)
+tevent_threaded_context_create: struct tevent_threaded_context *(TALLOC_CTX *, struct tevent_context *)
+tevent_timeval_add: struct timeval (const struct timeval *, uint32_t, uint32_t)
+tevent_timeval_compare: int (const struct timeval *, const struct timeval *)
+tevent_timeval_current: struct timeval (void)
+tevent_timeval_current_ofs: struct timeval (uint32_t, uint32_t)
+tevent_timeval_is_zero: bool (const struct timeval *)
+tevent_timeval_set: struct timeval (uint32_t, uint32_t)
+tevent_timeval_until: struct timeval (const struct timeval *, const struct timeval *)
+tevent_timeval_zero: struct timeval (void)
+tevent_trace_point_callback: void (struct tevent_context *, enum tevent_trace_point)
+tevent_update_timer: void (struct tevent_timer *, struct timeval)
+tevent_wakeup_recv: bool (struct tevent_req *)
+tevent_wakeup_send: struct tevent_req *(TALLOC_CTX *, struct tevent_context *, struct timeval)
diff --git a/lib/tevent/ABI/tevent-0.9.32.sigs b/lib/tevent/ABI/tevent-0.9.32.sigs
new file mode 100644
index 0000000..7a6a236
--- /dev/null
+++ b/lib/tevent/ABI/tevent-0.9.32.sigs
@@ -0,0 +1,99 @@
+_tevent_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+_tevent_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+_tevent_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+_tevent_create_immediate: struct tevent_immediate *(TALLOC_CTX *, const char *)
+_tevent_loop_once: int (struct tevent_context *, const char *)
+_tevent_loop_until: int (struct tevent_context *, bool (*)(void *), void *, const char *)
+_tevent_loop_wait: int (struct tevent_context *, const char *)
+_tevent_queue_create: struct tevent_queue *(TALLOC_CTX *, const char *, const char *)
+_tevent_req_callback_data: void *(struct tevent_req *)
+_tevent_req_cancel: bool (struct tevent_req *, const char *)
+_tevent_req_create: struct tevent_req *(TALLOC_CTX *, void *, size_t, const char *, const char *)
+_tevent_req_data: void *(struct tevent_req *)
+_tevent_req_done: void (struct tevent_req *, const char *)
+_tevent_req_error: bool (struct tevent_req *, uint64_t, const char *)
+_tevent_req_nomem: bool (const void *, struct tevent_req *, const char *)
+_tevent_req_notify_callback: void (struct tevent_req *, const char *)
+_tevent_req_oom: void (struct tevent_req *, const char *)
+_tevent_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+_tevent_threaded_schedule_immediate: void (struct tevent_threaded_context *, struct tevent_immediate *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_backend_list: const char **(TALLOC_CTX *)
+tevent_cleanup_pending_signal_handlers: void (struct tevent_signal *)
+tevent_common_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+tevent_common_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+tevent_common_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+tevent_common_add_timer_v2: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+tevent_common_check_signal: int (struct tevent_context *)
+tevent_common_context_destructor: int (struct tevent_context *)
+tevent_common_fd_destructor: int (struct tevent_fd *)
+tevent_common_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_common_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_common_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_common_have_events: bool (struct tevent_context *)
+tevent_common_loop_immediate: bool (struct tevent_context *)
+tevent_common_loop_timer_delay: struct timeval (struct tevent_context *)
+tevent_common_loop_wait: int (struct tevent_context *, const char *)
+tevent_common_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_common_threaded_activate_immediate: void (struct tevent_context *)
+tevent_common_wakeup: int (struct tevent_context *)
+tevent_common_wakeup_fd: int (int)
+tevent_common_wakeup_init: int (struct tevent_context *)
+tevent_context_init: struct tevent_context *(TALLOC_CTX *)
+tevent_context_init_byname: struct tevent_context *(TALLOC_CTX *, const char *)
+tevent_context_init_ops: struct tevent_context *(TALLOC_CTX *, const struct tevent_ops *, void *)
+tevent_debug: void (struct tevent_context *, enum tevent_debug_level, const char *, ...)
+tevent_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_fd_set_auto_close: void (struct tevent_fd *)
+tevent_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_get_trace_callback: void (struct tevent_context *, tevent_trace_callback_t *, void *)
+tevent_loop_allow_nesting: void (struct tevent_context *)
+tevent_loop_set_nesting_hook: void (struct tevent_context *, tevent_nesting_hook, void *)
+tevent_num_signals: size_t (void)
+tevent_queue_add: bool (struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_add_entry: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_add_optimize_empty: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_length: size_t (struct tevent_queue *)
+tevent_queue_running: bool (struct tevent_queue *)
+tevent_queue_start: void (struct tevent_queue *)
+tevent_queue_stop: void (struct tevent_queue *)
+tevent_queue_wait_recv: bool (struct tevent_req *)
+tevent_queue_wait_send: struct tevent_req *(TALLOC_CTX *, struct tevent_context *, struct tevent_queue *)
+tevent_re_initialise: int (struct tevent_context *)
+tevent_register_backend: bool (const char *, const struct tevent_ops *)
+tevent_req_default_print: char *(struct tevent_req *, TALLOC_CTX *)
+tevent_req_defer_callback: void (struct tevent_req *, struct tevent_context *)
+tevent_req_is_error: bool (struct tevent_req *, enum tevent_req_state *, uint64_t *)
+tevent_req_is_in_progress: bool (struct tevent_req *)
+tevent_req_poll: bool (struct tevent_req *, struct tevent_context *)
+tevent_req_post: struct tevent_req *(struct tevent_req *, struct tevent_context *)
+tevent_req_print: char *(TALLOC_CTX *, struct tevent_req *)
+tevent_req_received: void (struct tevent_req *)
+tevent_req_reset_endtime: void (struct tevent_req *)
+tevent_req_set_callback: void (struct tevent_req *, tevent_req_fn, void *)
+tevent_req_set_cancel_fn: void (struct tevent_req *, tevent_req_cancel_fn)
+tevent_req_set_cleanup_fn: void (struct tevent_req *, tevent_req_cleanup_fn)
+tevent_req_set_endtime: bool (struct tevent_req *, struct tevent_context *, struct timeval)
+tevent_req_set_print_fn: void (struct tevent_req *, tevent_req_print_fn)
+tevent_sa_info_queue_count: size_t (void)
+tevent_set_abort_fn: void (void (*)(const char *))
+tevent_set_debug: int (struct tevent_context *, void (*)(void *, enum tevent_debug_level, const char *, va_list), void *)
+tevent_set_debug_stderr: int (struct tevent_context *)
+tevent_set_default_backend: void (const char *)
+tevent_set_trace_callback: void (struct tevent_context *, tevent_trace_callback_t, void *)
+tevent_signal_support: bool (struct tevent_context *)
+tevent_thread_proxy_create: struct tevent_thread_proxy *(struct tevent_context *)
+tevent_thread_proxy_schedule: void (struct tevent_thread_proxy *, struct tevent_immediate **, tevent_immediate_handler_t, void *)
+tevent_threaded_context_create: struct tevent_threaded_context *(TALLOC_CTX *, struct tevent_context *)
+tevent_timeval_add: struct timeval (const struct timeval *, uint32_t, uint32_t)
+tevent_timeval_compare: int (const struct timeval *, const struct timeval *)
+tevent_timeval_current: struct timeval (void)
+tevent_timeval_current_ofs: struct timeval (uint32_t, uint32_t)
+tevent_timeval_is_zero: bool (const struct timeval *)
+tevent_timeval_set: struct timeval (uint32_t, uint32_t)
+tevent_timeval_until: struct timeval (const struct timeval *, const struct timeval *)
+tevent_timeval_zero: struct timeval (void)
+tevent_trace_point_callback: void (struct tevent_context *, enum tevent_trace_point)
+tevent_update_timer: void (struct tevent_timer *, struct timeval)
+tevent_wakeup_recv: bool (struct tevent_req *)
+tevent_wakeup_send: struct tevent_req *(TALLOC_CTX *, struct tevent_context *, struct timeval)
diff --git a/lib/tevent/ABI/tevent-0.9.33.sigs b/lib/tevent/ABI/tevent-0.9.33.sigs
new file mode 100644
index 0000000..7a6a236
--- /dev/null
+++ b/lib/tevent/ABI/tevent-0.9.33.sigs
@@ -0,0 +1,99 @@
+_tevent_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+_tevent_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+_tevent_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+_tevent_create_immediate: struct tevent_immediate *(TALLOC_CTX *, const char *)
+_tevent_loop_once: int (struct tevent_context *, const char *)
+_tevent_loop_until: int (struct tevent_context *, bool (*)(void *), void *, const char *)
+_tevent_loop_wait: int (struct tevent_context *, const char *)
+_tevent_queue_create: struct tevent_queue *(TALLOC_CTX *, const char *, const char *)
+_tevent_req_callback_data: void *(struct tevent_req *)
+_tevent_req_cancel: bool (struct tevent_req *, const char *)
+_tevent_req_create: struct tevent_req *(TALLOC_CTX *, void *, size_t, const char *, const char *)
+_tevent_req_data: void *(struct tevent_req *)
+_tevent_req_done: void (struct tevent_req *, const char *)
+_tevent_req_error: bool (struct tevent_req *, uint64_t, const char *)
+_tevent_req_nomem: bool (const void *, struct tevent_req *, const char *)
+_tevent_req_notify_callback: void (struct tevent_req *, const char *)
+_tevent_req_oom: void (struct tevent_req *, const char *)
+_tevent_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+_tevent_threaded_schedule_immediate: void (struct tevent_threaded_context *, struct tevent_immediate *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_backend_list: const char **(TALLOC_CTX *)
+tevent_cleanup_pending_signal_handlers: void (struct tevent_signal *)
+tevent_common_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+tevent_common_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+tevent_common_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+tevent_common_add_timer_v2: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+tevent_common_check_signal: int (struct tevent_context *)
+tevent_common_context_destructor: int (struct tevent_context *)
+tevent_common_fd_destructor: int (struct tevent_fd *)
+tevent_common_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_common_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_common_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_common_have_events: bool (struct tevent_context *)
+tevent_common_loop_immediate: bool (struct tevent_context *)
+tevent_common_loop_timer_delay: struct timeval (struct tevent_context *)
+tevent_common_loop_wait: int (struct tevent_context *, const char *)
+tevent_common_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_common_threaded_activate_immediate: void (struct tevent_context *)
+tevent_common_wakeup: int (struct tevent_context *)
+tevent_common_wakeup_fd: int (int)
+tevent_common_wakeup_init: int (struct tevent_context *)
+tevent_context_init: struct tevent_context *(TALLOC_CTX *)
+tevent_context_init_byname: struct tevent_context *(TALLOC_CTX *, const char *)
+tevent_context_init_ops: struct tevent_context *(TALLOC_CTX *, const struct tevent_ops *, void *)
+tevent_debug: void (struct tevent_context *, enum tevent_debug_level, const char *, ...)
+tevent_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_fd_set_auto_close: void (struct tevent_fd *)
+tevent_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_get_trace_callback: void (struct tevent_context *, tevent_trace_callback_t *, void *)
+tevent_loop_allow_nesting: void (struct tevent_context *)
+tevent_loop_set_nesting_hook: void (struct tevent_context *, tevent_nesting_hook, void *)
+tevent_num_signals: size_t (void)
+tevent_queue_add: bool (struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_add_entry: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_add_optimize_empty: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_length: size_t (struct tevent_queue *)
+tevent_queue_running: bool (struct tevent_queue *)
+tevent_queue_start: void (struct tevent_queue *)
+tevent_queue_stop: void (struct tevent_queue *)
+tevent_queue_wait_recv: bool (struct tevent_req *)
+tevent_queue_wait_send: struct tevent_req *(TALLOC_CTX *, struct tevent_context *, struct tevent_queue *)
+tevent_re_initialise: int (struct tevent_context *)
+tevent_register_backend: bool (const char *, const struct tevent_ops *)
+tevent_req_default_print: char *(struct tevent_req *, TALLOC_CTX *)
+tevent_req_defer_callback: void (struct tevent_req *, struct tevent_context *)
+tevent_req_is_error: bool (struct tevent_req *, enum tevent_req_state *, uint64_t *)
+tevent_req_is_in_progress: bool (struct tevent_req *)
+tevent_req_poll: bool (struct tevent_req *, struct tevent_context *)
+tevent_req_post: struct tevent_req *(struct tevent_req *, struct tevent_context *)
+tevent_req_print: char *(TALLOC_CTX *, struct tevent_req *)
+tevent_req_received: void (struct tevent_req *)
+tevent_req_reset_endtime: void (struct tevent_req *)
+tevent_req_set_callback: void (struct tevent_req *, tevent_req_fn, void *)
+tevent_req_set_cancel_fn: void (struct tevent_req *, tevent_req_cancel_fn)
+tevent_req_set_cleanup_fn: void (struct tevent_req *, tevent_req_cleanup_fn)
+tevent_req_set_endtime: bool (struct tevent_req *, struct tevent_context *, struct timeval)
+tevent_req_set_print_fn: void (struct tevent_req *, tevent_req_print_fn)
+tevent_sa_info_queue_count: size_t (void)
+tevent_set_abort_fn: void (void (*)(const char *))
+tevent_set_debug: int (struct tevent_context *, void (*)(void *, enum tevent_debug_level, const char *, va_list), void *)
+tevent_set_debug_stderr: int (struct tevent_context *)
+tevent_set_default_backend: void (const char *)
+tevent_set_trace_callback: void (struct tevent_context *, tevent_trace_callback_t, void *)
+tevent_signal_support: bool (struct tevent_context *)
+tevent_thread_proxy_create: struct tevent_thread_proxy *(struct tevent_context *)
+tevent_thread_proxy_schedule: void (struct tevent_thread_proxy *, struct tevent_immediate **, tevent_immediate_handler_t, void *)
+tevent_threaded_context_create: struct tevent_threaded_context *(TALLOC_CTX *, struct tevent_context *)
+tevent_timeval_add: struct timeval (const struct timeval *, uint32_t, uint32_t)
+tevent_timeval_compare: int (const struct timeval *, const struct timeval *)
+tevent_timeval_current: struct timeval (void)
+tevent_timeval_current_ofs: struct timeval (uint32_t, uint32_t)
+tevent_timeval_is_zero: bool (const struct timeval *)
+tevent_timeval_set: struct timeval (uint32_t, uint32_t)
+tevent_timeval_until: struct timeval (const struct timeval *, const struct timeval *)
+tevent_timeval_zero: struct timeval (void)
+tevent_trace_point_callback: void (struct tevent_context *, enum tevent_trace_point)
+tevent_update_timer: void (struct tevent_timer *, struct timeval)
+tevent_wakeup_recv: bool (struct tevent_req *)
+tevent_wakeup_send: struct tevent_req *(TALLOC_CTX *, struct tevent_context *, struct timeval)
diff --git a/lib/tevent/ABI/tevent-0.9.34.sigs b/lib/tevent/ABI/tevent-0.9.34.sigs
new file mode 100644
index 0000000..7a6a236
--- /dev/null
+++ b/lib/tevent/ABI/tevent-0.9.34.sigs
@@ -0,0 +1,99 @@
+_tevent_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+_tevent_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+_tevent_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+_tevent_create_immediate: struct tevent_immediate *(TALLOC_CTX *, const char *)
+_tevent_loop_once: int (struct tevent_context *, const char *)
+_tevent_loop_until: int (struct tevent_context *, bool (*)(void *), void *, const char *)
+_tevent_loop_wait: int (struct tevent_context *, const char *)
+_tevent_queue_create: struct tevent_queue *(TALLOC_CTX *, const char *, const char *)
+_tevent_req_callback_data: void *(struct tevent_req *)
+_tevent_req_cancel: bool (struct tevent_req *, const char *)
+_tevent_req_create: struct tevent_req *(TALLOC_CTX *, void *, size_t, const char *, const char *)
+_tevent_req_data: void *(struct tevent_req *)
+_tevent_req_done: void (struct tevent_req *, const char *)
+_tevent_req_error: bool (struct tevent_req *, uint64_t, const char *)
+_tevent_req_nomem: bool (const void *, struct tevent_req *, const char *)
+_tevent_req_notify_callback: void (struct tevent_req *, const char *)
+_tevent_req_oom: void (struct tevent_req *, const char *)
+_tevent_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+_tevent_threaded_schedule_immediate: void (struct tevent_threaded_context *, struct tevent_immediate *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_backend_list: const char **(TALLOC_CTX *)
+tevent_cleanup_pending_signal_handlers: void (struct tevent_signal *)
+tevent_common_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+tevent_common_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+tevent_common_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+tevent_common_add_timer_v2: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+tevent_common_check_signal: int (struct tevent_context *)
+tevent_common_context_destructor: int (struct tevent_context *)
+tevent_common_fd_destructor: int (struct tevent_fd *)
+tevent_common_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_common_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_common_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_common_have_events: bool (struct tevent_context *)
+tevent_common_loop_immediate: bool (struct tevent_context *)
+tevent_common_loop_timer_delay: struct timeval (struct tevent_context *)
+tevent_common_loop_wait: int (struct tevent_context *, const char *)
+tevent_common_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_common_threaded_activate_immediate: void (struct tevent_context *)
+tevent_common_wakeup: int (struct tevent_context *)
+tevent_common_wakeup_fd: int (int)
+tevent_common_wakeup_init: int (struct tevent_context *)
+tevent_context_init: struct tevent_context *(TALLOC_CTX *)
+tevent_context_init_byname: struct tevent_context *(TALLOC_CTX *, const char *)
+tevent_context_init_ops: struct tevent_context *(TALLOC_CTX *, const struct tevent_ops *, void *)
+tevent_debug: void (struct tevent_context *, enum tevent_debug_level, const char *, ...)
+tevent_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_fd_set_auto_close: void (struct tevent_fd *)
+tevent_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_get_trace_callback: void (struct tevent_context *, tevent_trace_callback_t *, void *)
+tevent_loop_allow_nesting: void (struct tevent_context *)
+tevent_loop_set_nesting_hook: void (struct tevent_context *, tevent_nesting_hook, void *)
+tevent_num_signals: size_t (void)
+tevent_queue_add: bool (struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_add_entry: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_add_optimize_empty: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_length: size_t (struct tevent_queue *)
+tevent_queue_running: bool (struct tevent_queue *)
+tevent_queue_start: void (struct tevent_queue *)
+tevent_queue_stop: void (struct tevent_queue *)
+tevent_queue_wait_recv: bool (struct tevent_req *)
+tevent_queue_wait_send: struct tevent_req *(TALLOC_CTX *, struct tevent_context *, struct tevent_queue *)
+tevent_re_initialise: int (struct tevent_context *)
+tevent_register_backend: bool (const char *, const struct tevent_ops *)
+tevent_req_default_print: char *(struct tevent_req *, TALLOC_CTX *)
+tevent_req_defer_callback: void (struct tevent_req *, struct tevent_context *)
+tevent_req_is_error: bool (struct tevent_req *, enum tevent_req_state *, uint64_t *)
+tevent_req_is_in_progress: bool (struct tevent_req *)
+tevent_req_poll: bool (struct tevent_req *, struct tevent_context *)
+tevent_req_post: struct tevent_req *(struct tevent_req *, struct tevent_context *)
+tevent_req_print: char *(TALLOC_CTX *, struct tevent_req *)
+tevent_req_received: void (struct tevent_req *)
+tevent_req_reset_endtime: void (struct tevent_req *)
+tevent_req_set_callback: void (struct tevent_req *, tevent_req_fn, void *)
+tevent_req_set_cancel_fn: void (struct tevent_req *, tevent_req_cancel_fn)
+tevent_req_set_cleanup_fn: void (struct tevent_req *, tevent_req_cleanup_fn)
+tevent_req_set_endtime: bool (struct tevent_req *, struct tevent_context *, struct timeval)
+tevent_req_set_print_fn: void (struct tevent_req *, tevent_req_print_fn)
+tevent_sa_info_queue_count: size_t (void)
+tevent_set_abort_fn: void (void (*)(const char *))
+tevent_set_debug: int (struct tevent_context *, void (*)(void *, enum tevent_debug_level, const char *, va_list), void *)
+tevent_set_debug_stderr: int (struct tevent_context *)
+tevent_set_default_backend: void (const char *)
+tevent_set_trace_callback: void (struct tevent_context *, tevent_trace_callback_t, void *)
+tevent_signal_support: bool (struct tevent_context *)
+tevent_thread_proxy_create: struct tevent_thread_proxy *(struct tevent_context *)
+tevent_thread_proxy_schedule: void (struct tevent_thread_proxy *, struct tevent_immediate **, tevent_immediate_handler_t, void *)
+tevent_threaded_context_create: struct tevent_threaded_context *(TALLOC_CTX *, struct tevent_context *)
+tevent_timeval_add: struct timeval (const struct timeval *, uint32_t, uint32_t)
+tevent_timeval_compare: int (const struct timeval *, const struct timeval *)
+tevent_timeval_current: struct timeval (void)
+tevent_timeval_current_ofs: struct timeval (uint32_t, uint32_t)
+tevent_timeval_is_zero: bool (const struct timeval *)
+tevent_timeval_set: struct timeval (uint32_t, uint32_t)
+tevent_timeval_until: struct timeval (const struct timeval *, const struct timeval *)
+tevent_timeval_zero: struct timeval (void)
+tevent_trace_point_callback: void (struct tevent_context *, enum tevent_trace_point)
+tevent_update_timer: void (struct tevent_timer *, struct timeval)
+tevent_wakeup_recv: bool (struct tevent_req *)
+tevent_wakeup_send: struct tevent_req *(TALLOC_CTX *, struct tevent_context *, struct timeval)
diff --git a/lib/tevent/ABI/tevent-0.9.35.sigs b/lib/tevent/ABI/tevent-0.9.35.sigs
new file mode 100644
index 0000000..7a6a236
--- /dev/null
+++ b/lib/tevent/ABI/tevent-0.9.35.sigs
@@ -0,0 +1,99 @@
+_tevent_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+_tevent_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+_tevent_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+_tevent_create_immediate: struct tevent_immediate *(TALLOC_CTX *, const char *)
+_tevent_loop_once: int (struct tevent_context *, const char *)
+_tevent_loop_until: int (struct tevent_context *, bool (*)(void *), void *, const char *)
+_tevent_loop_wait: int (struct tevent_context *, const char *)
+_tevent_queue_create: struct tevent_queue *(TALLOC_CTX *, const char *, const char *)
+_tevent_req_callback_data: void *(struct tevent_req *)
+_tevent_req_cancel: bool (struct tevent_req *, const char *)
+_tevent_req_create: struct tevent_req *(TALLOC_CTX *, void *, size_t, const char *, const char *)
+_tevent_req_data: void *(struct tevent_req *)
+_tevent_req_done: void (struct tevent_req *, const char *)
+_tevent_req_error: bool (struct tevent_req *, uint64_t, const char *)
+_tevent_req_nomem: bool (const void *, struct tevent_req *, const char *)
+_tevent_req_notify_callback: void (struct tevent_req *, const char *)
+_tevent_req_oom: void (struct tevent_req *, const char *)
+_tevent_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+_tevent_threaded_schedule_immediate: void (struct tevent_threaded_context *, struct tevent_immediate *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_backend_list: const char **(TALLOC_CTX *)
+tevent_cleanup_pending_signal_handlers: void (struct tevent_signal *)
+tevent_common_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+tevent_common_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+tevent_common_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+tevent_common_add_timer_v2: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+tevent_common_check_signal: int (struct tevent_context *)
+tevent_common_context_destructor: int (struct tevent_context *)
+tevent_common_fd_destructor: int (struct tevent_fd *)
+tevent_common_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_common_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_common_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_common_have_events: bool (struct tevent_context *)
+tevent_common_loop_immediate: bool (struct tevent_context *)
+tevent_common_loop_timer_delay: struct timeval (struct tevent_context *)
+tevent_common_loop_wait: int (struct tevent_context *, const char *)
+tevent_common_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_common_threaded_activate_immediate: void (struct tevent_context *)
+tevent_common_wakeup: int (struct tevent_context *)
+tevent_common_wakeup_fd: int (int)
+tevent_common_wakeup_init: int (struct tevent_context *)
+tevent_context_init: struct tevent_context *(TALLOC_CTX *)
+tevent_context_init_byname: struct tevent_context *(TALLOC_CTX *, const char *)
+tevent_context_init_ops: struct tevent_context *(TALLOC_CTX *, const struct tevent_ops *, void *)
+tevent_debug: void (struct tevent_context *, enum tevent_debug_level, const char *, ...)
+tevent_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_fd_set_auto_close: void (struct tevent_fd *)
+tevent_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_get_trace_callback: void (struct tevent_context *, tevent_trace_callback_t *, void *)
+tevent_loop_allow_nesting: void (struct tevent_context *)
+tevent_loop_set_nesting_hook: void (struct tevent_context *, tevent_nesting_hook, void *)
+tevent_num_signals: size_t (void)
+tevent_queue_add: bool (struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_add_entry: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_add_optimize_empty: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_length: size_t (struct tevent_queue *)
+tevent_queue_running: bool (struct tevent_queue *)
+tevent_queue_start: void (struct tevent_queue *)
+tevent_queue_stop: void (struct tevent_queue *)
+tevent_queue_wait_recv: bool (struct tevent_req *)
+tevent_queue_wait_send: struct tevent_req *(TALLOC_CTX *, struct tevent_context *, struct tevent_queue *)
+tevent_re_initialise: int (struct tevent_context *)
+tevent_register_backend: bool (const char *, const struct tevent_ops *)
+tevent_req_default_print: char *(struct tevent_req *, TALLOC_CTX *)
+tevent_req_defer_callback: void (struct tevent_req *, struct tevent_context *)
+tevent_req_is_error: bool (struct tevent_req *, enum tevent_req_state *, uint64_t *)
+tevent_req_is_in_progress: bool (struct tevent_req *)
+tevent_req_poll: bool (struct tevent_req *, struct tevent_context *)
+tevent_req_post: struct tevent_req *(struct tevent_req *, struct tevent_context *)
+tevent_req_print: char *(TALLOC_CTX *, struct tevent_req *)
+tevent_req_received: void (struct tevent_req *)
+tevent_req_reset_endtime: void (struct tevent_req *)
+tevent_req_set_callback: void (struct tevent_req *, tevent_req_fn, void *)
+tevent_req_set_cancel_fn: void (struct tevent_req *, tevent_req_cancel_fn)
+tevent_req_set_cleanup_fn: void (struct tevent_req *, tevent_req_cleanup_fn)
+tevent_req_set_endtime: bool (struct tevent_req *, struct tevent_context *, struct timeval)
+tevent_req_set_print_fn: void (struct tevent_req *, tevent_req_print_fn)
+tevent_sa_info_queue_count: size_t (void)
+tevent_set_abort_fn: void (void (*)(const char *))
+tevent_set_debug: int (struct tevent_context *, void (*)(void *, enum tevent_debug_level, const char *, va_list), void *)
+tevent_set_debug_stderr: int (struct tevent_context *)
+tevent_set_default_backend: void (const char *)
+tevent_set_trace_callback: void (struct tevent_context *, tevent_trace_callback_t, void *)
+tevent_signal_support: bool (struct tevent_context *)
+tevent_thread_proxy_create: struct tevent_thread_proxy *(struct tevent_context *)
+tevent_thread_proxy_schedule: void (struct tevent_thread_proxy *, struct tevent_immediate **, tevent_immediate_handler_t, void *)
+tevent_threaded_context_create: struct tevent_threaded_context *(TALLOC_CTX *, struct tevent_context *)
+tevent_timeval_add: struct timeval (const struct timeval *, uint32_t, uint32_t)
+tevent_timeval_compare: int (const struct timeval *, const struct timeval *)
+tevent_timeval_current: struct timeval (void)
+tevent_timeval_current_ofs: struct timeval (uint32_t, uint32_t)
+tevent_timeval_is_zero: bool (const struct timeval *)
+tevent_timeval_set: struct timeval (uint32_t, uint32_t)
+tevent_timeval_until: struct timeval (const struct timeval *, const struct timeval *)
+tevent_timeval_zero: struct timeval (void)
+tevent_trace_point_callback: void (struct tevent_context *, enum tevent_trace_point)
+tevent_update_timer: void (struct tevent_timer *, struct timeval)
+tevent_wakeup_recv: bool (struct tevent_req *)
+tevent_wakeup_send: struct tevent_req *(TALLOC_CTX *, struct tevent_context *, struct timeval)
diff --git a/lib/tevent/ABI/tevent-0.9.36.sigs b/lib/tevent/ABI/tevent-0.9.36.sigs
new file mode 100644
index 0000000..8a579c8
--- /dev/null
+++ b/lib/tevent/ABI/tevent-0.9.36.sigs
@@ -0,0 +1,100 @@
+_tevent_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+_tevent_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+_tevent_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+_tevent_create_immediate: struct tevent_immediate *(TALLOC_CTX *, const char *)
+_tevent_loop_once: int (struct tevent_context *, const char *)
+_tevent_loop_until: int (struct tevent_context *, bool (*)(void *), void *, const char *)
+_tevent_loop_wait: int (struct tevent_context *, const char *)
+_tevent_queue_create: struct tevent_queue *(TALLOC_CTX *, const char *, const char *)
+_tevent_req_callback_data: void *(struct tevent_req *)
+_tevent_req_cancel: bool (struct tevent_req *, const char *)
+_tevent_req_create: struct tevent_req *(TALLOC_CTX *, void *, size_t, const char *, const char *)
+_tevent_req_data: void *(struct tevent_req *)
+_tevent_req_done: void (struct tevent_req *, const char *)
+_tevent_req_error: bool (struct tevent_req *, uint64_t, const char *)
+_tevent_req_nomem: bool (const void *, struct tevent_req *, const char *)
+_tevent_req_notify_callback: void (struct tevent_req *, const char *)
+_tevent_req_oom: void (struct tevent_req *, const char *)
+_tevent_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+_tevent_threaded_schedule_immediate: void (struct tevent_threaded_context *, struct tevent_immediate *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_backend_list: const char **(TALLOC_CTX *)
+tevent_cleanup_pending_signal_handlers: void (struct tevent_signal *)
+tevent_common_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+tevent_common_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+tevent_common_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+tevent_common_add_timer_v2: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+tevent_common_check_signal: int (struct tevent_context *)
+tevent_common_context_destructor: int (struct tevent_context *)
+tevent_common_fd_destructor: int (struct tevent_fd *)
+tevent_common_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_common_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_common_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_common_have_events: bool (struct tevent_context *)
+tevent_common_loop_immediate: bool (struct tevent_context *)
+tevent_common_loop_timer_delay: struct timeval (struct tevent_context *)
+tevent_common_loop_wait: int (struct tevent_context *, const char *)
+tevent_common_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_common_threaded_activate_immediate: void (struct tevent_context *)
+tevent_common_wakeup: int (struct tevent_context *)
+tevent_common_wakeup_fd: int (int)
+tevent_common_wakeup_init: int (struct tevent_context *)
+tevent_context_init: struct tevent_context *(TALLOC_CTX *)
+tevent_context_init_byname: struct tevent_context *(TALLOC_CTX *, const char *)
+tevent_context_init_ops: struct tevent_context *(TALLOC_CTX *, const struct tevent_ops *, void *)
+tevent_debug: void (struct tevent_context *, enum tevent_debug_level, const char *, ...)
+tevent_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_fd_set_auto_close: void (struct tevent_fd *)
+tevent_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_get_trace_callback: void (struct tevent_context *, tevent_trace_callback_t *, void *)
+tevent_loop_allow_nesting: void (struct tevent_context *)
+tevent_loop_set_nesting_hook: void (struct tevent_context *, tevent_nesting_hook, void *)
+tevent_num_signals: size_t (void)
+tevent_queue_add: bool (struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_add_entry: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_add_optimize_empty: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_entry_untrigger: void (struct tevent_queue_entry *)
+tevent_queue_length: size_t (struct tevent_queue *)
+tevent_queue_running: bool (struct tevent_queue *)
+tevent_queue_start: void (struct tevent_queue *)
+tevent_queue_stop: void (struct tevent_queue *)
+tevent_queue_wait_recv: bool (struct tevent_req *)
+tevent_queue_wait_send: struct tevent_req *(TALLOC_CTX *, struct tevent_context *, struct tevent_queue *)
+tevent_re_initialise: int (struct tevent_context *)
+tevent_register_backend: bool (const char *, const struct tevent_ops *)
+tevent_req_default_print: char *(struct tevent_req *, TALLOC_CTX *)
+tevent_req_defer_callback: void (struct tevent_req *, struct tevent_context *)
+tevent_req_is_error: bool (struct tevent_req *, enum tevent_req_state *, uint64_t *)
+tevent_req_is_in_progress: bool (struct tevent_req *)
+tevent_req_poll: bool (struct tevent_req *, struct tevent_context *)
+tevent_req_post: struct tevent_req *(struct tevent_req *, struct tevent_context *)
+tevent_req_print: char *(TALLOC_CTX *, struct tevent_req *)
+tevent_req_received: void (struct tevent_req *)
+tevent_req_reset_endtime: void (struct tevent_req *)
+tevent_req_set_callback: void (struct tevent_req *, tevent_req_fn, void *)
+tevent_req_set_cancel_fn: void (struct tevent_req *, tevent_req_cancel_fn)
+tevent_req_set_cleanup_fn: void (struct tevent_req *, tevent_req_cleanup_fn)
+tevent_req_set_endtime: bool (struct tevent_req *, struct tevent_context *, struct timeval)
+tevent_req_set_print_fn: void (struct tevent_req *, tevent_req_print_fn)
+tevent_sa_info_queue_count: size_t (void)
+tevent_set_abort_fn: void (void (*)(const char *))
+tevent_set_debug: int (struct tevent_context *, void (*)(void *, enum tevent_debug_level, const char *, va_list), void *)
+tevent_set_debug_stderr: int (struct tevent_context *)
+tevent_set_default_backend: void (const char *)
+tevent_set_trace_callback: void (struct tevent_context *, tevent_trace_callback_t, void *)
+tevent_signal_support: bool (struct tevent_context *)
+tevent_thread_proxy_create: struct tevent_thread_proxy *(struct tevent_context *)
+tevent_thread_proxy_schedule: void (struct tevent_thread_proxy *, struct tevent_immediate **, tevent_immediate_handler_t, void *)
+tevent_threaded_context_create: struct tevent_threaded_context *(TALLOC_CTX *, struct tevent_context *)
+tevent_timeval_add: struct timeval (const struct timeval *, uint32_t, uint32_t)
+tevent_timeval_compare: int (const struct timeval *, const struct timeval *)
+tevent_timeval_current: struct timeval (void)
+tevent_timeval_current_ofs: struct timeval (uint32_t, uint32_t)
+tevent_timeval_is_zero: bool (const struct timeval *)
+tevent_timeval_set: struct timeval (uint32_t, uint32_t)
+tevent_timeval_until: struct timeval (const struct timeval *, const struct timeval *)
+tevent_timeval_zero: struct timeval (void)
+tevent_trace_point_callback: void (struct tevent_context *, enum tevent_trace_point)
+tevent_update_timer: void (struct tevent_timer *, struct timeval)
+tevent_wakeup_recv: bool (struct tevent_req *)
+tevent_wakeup_send: struct tevent_req *(TALLOC_CTX *, struct tevent_context *, struct timeval)
diff --git a/lib/tevent/ABI/tevent-0.9.37.sigs b/lib/tevent/ABI/tevent-0.9.37.sigs
new file mode 100644
index 0000000..f6227db
--- /dev/null
+++ b/lib/tevent/ABI/tevent-0.9.37.sigs
@@ -0,0 +1,126 @@
+_tevent_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+_tevent_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+_tevent_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+_tevent_context_pop_use: void (struct tevent_context *, const char *)
+_tevent_context_push_use: bool (struct tevent_context *, const char *)
+_tevent_context_wrapper_create: struct tevent_context *(struct tevent_context *, TALLOC_CTX *, const struct tevent_wrapper_ops *, void *, size_t, const char *, const char *)
+_tevent_create_immediate: struct tevent_immediate *(TALLOC_CTX *, const char *)
+_tevent_loop_once: int (struct tevent_context *, const char *)
+_tevent_loop_until: int (struct tevent_context *, bool (*)(void *), void *, const char *)
+_tevent_loop_wait: int (struct tevent_context *, const char *)
+_tevent_queue_create: struct tevent_queue *(TALLOC_CTX *, const char *, const char *)
+_tevent_req_callback_data: void *(struct tevent_req *)
+_tevent_req_cancel: bool (struct tevent_req *, const char *)
+_tevent_req_create: struct tevent_req *(TALLOC_CTX *, void *, size_t, const char *, const char *)
+_tevent_req_data: void *(struct tevent_req *)
+_tevent_req_done: void (struct tevent_req *, const char *)
+_tevent_req_error: bool (struct tevent_req *, uint64_t, const char *)
+_tevent_req_nomem: bool (const void *, struct tevent_req *, const char *)
+_tevent_req_notify_callback: void (struct tevent_req *, const char *)
+_tevent_req_oom: void (struct tevent_req *, const char *)
+_tevent_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+_tevent_threaded_schedule_immediate: void (struct tevent_threaded_context *, struct tevent_immediate *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_abort: void (struct tevent_context *, const char *)
+tevent_backend_list: const char **(TALLOC_CTX *)
+tevent_cleanup_pending_signal_handlers: void (struct tevent_signal *)
+tevent_common_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+tevent_common_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+tevent_common_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+tevent_common_add_timer_v2: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+tevent_common_check_double_free: void (TALLOC_CTX *, const char *)
+tevent_common_check_signal: int (struct tevent_context *)
+tevent_common_context_destructor: int (struct tevent_context *)
+tevent_common_fd_destructor: int (struct tevent_fd *)
+tevent_common_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_common_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_common_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_common_have_events: bool (struct tevent_context *)
+tevent_common_invoke_fd_handler: int (struct tevent_fd *, uint16_t, bool *)
+tevent_common_invoke_immediate_handler: int (struct tevent_immediate *, bool *)
+tevent_common_invoke_signal_handler: int (struct tevent_signal *, int, int, void *, bool *)
+tevent_common_invoke_timer_handler: int (struct tevent_timer *, struct timeval, bool *)
+tevent_common_loop_immediate: bool (struct tevent_context *)
+tevent_common_loop_timer_delay: struct timeval (struct tevent_context *)
+tevent_common_loop_wait: int (struct tevent_context *, const char *)
+tevent_common_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_common_threaded_activate_immediate: void (struct tevent_context *)
+tevent_common_wakeup: int (struct tevent_context *)
+tevent_common_wakeup_fd: int (int)
+tevent_common_wakeup_init: int (struct tevent_context *)
+tevent_context_init: struct tevent_context *(TALLOC_CTX *)
+tevent_context_init_byname: struct tevent_context *(TALLOC_CTX *, const char *)
+tevent_context_init_ops: struct tevent_context *(TALLOC_CTX *, const struct tevent_ops *, void *)
+tevent_context_is_wrapper: bool (struct tevent_context *)
+tevent_context_same_loop: bool (struct tevent_context *, struct tevent_context *)
+tevent_debug: void (struct tevent_context *, enum tevent_debug_level, const char *, ...)
+tevent_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_fd_set_auto_close: void (struct tevent_fd *)
+tevent_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_get_trace_callback: void (struct tevent_context *, tevent_trace_callback_t *, void *)
+tevent_loop_allow_nesting: void (struct tevent_context *)
+tevent_loop_set_nesting_hook: void (struct tevent_context *, tevent_nesting_hook, void *)
+tevent_num_signals: size_t (void)
+tevent_queue_add: bool (struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_add_entry: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_add_optimize_empty: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_entry_untrigger: void (struct tevent_queue_entry *)
+tevent_queue_length: size_t (struct tevent_queue *)
+tevent_queue_running: bool (struct tevent_queue *)
+tevent_queue_start: void (struct tevent_queue *)
+tevent_queue_stop: void (struct tevent_queue *)
+tevent_queue_wait_recv: bool (struct tevent_req *)
+tevent_queue_wait_send: struct tevent_req *(TALLOC_CTX *, struct tevent_context *, struct tevent_queue *)
+tevent_re_initialise: int (struct tevent_context *)
+tevent_register_backend: bool (const char *, const struct tevent_ops *)
+tevent_req_default_print: char *(struct tevent_req *, TALLOC_CTX *)
+tevent_req_defer_callback: void (struct tevent_req *, struct tevent_context *)
+tevent_req_get_profile: const struct tevent_req_profile *(struct tevent_req *)
+tevent_req_is_error: bool (struct tevent_req *, enum tevent_req_state *, uint64_t *)
+tevent_req_is_in_progress: bool (struct tevent_req *)
+tevent_req_move_profile: struct tevent_req_profile *(struct tevent_req *, TALLOC_CTX *)
+tevent_req_poll: bool (struct tevent_req *, struct tevent_context *)
+tevent_req_post: struct tevent_req *(struct tevent_req *, struct tevent_context *)
+tevent_req_print: char *(TALLOC_CTX *, struct tevent_req *)
+tevent_req_profile_append_sub: void (struct tevent_req_profile *, struct tevent_req_profile **)
+tevent_req_profile_create: struct tevent_req_profile *(TALLOC_CTX *)
+tevent_req_profile_get_name: void (const struct tevent_req_profile *, const char **)
+tevent_req_profile_get_start: void (const struct tevent_req_profile *, const char **, struct timeval *)
+tevent_req_profile_get_status: void (const struct tevent_req_profile *, pid_t *, enum tevent_req_state *, uint64_t *)
+tevent_req_profile_get_stop: void (const struct tevent_req_profile *, const char **, struct timeval *)
+tevent_req_profile_get_subprofiles: const struct tevent_req_profile *(const struct tevent_req_profile *)
+tevent_req_profile_next: const struct tevent_req_profile *(const struct tevent_req_profile *)
+tevent_req_profile_set_name: bool (struct tevent_req_profile *, const char *)
+tevent_req_profile_set_start: bool (struct tevent_req_profile *, const char *, struct timeval)
+tevent_req_profile_set_status: void (struct tevent_req_profile *, pid_t, enum tevent_req_state, uint64_t)
+tevent_req_profile_set_stop: bool (struct tevent_req_profile *, const char *, struct timeval)
+tevent_req_received: void (struct tevent_req *)
+tevent_req_reset_endtime: void (struct tevent_req *)
+tevent_req_set_callback: void (struct tevent_req *, tevent_req_fn, void *)
+tevent_req_set_cancel_fn: void (struct tevent_req *, tevent_req_cancel_fn)
+tevent_req_set_cleanup_fn: void (struct tevent_req *, tevent_req_cleanup_fn)
+tevent_req_set_endtime: bool (struct tevent_req *, struct tevent_context *, struct timeval)
+tevent_req_set_print_fn: void (struct tevent_req *, tevent_req_print_fn)
+tevent_req_set_profile: bool (struct tevent_req *)
+tevent_sa_info_queue_count: size_t (void)
+tevent_set_abort_fn: void (void (*)(const char *))
+tevent_set_debug: int (struct tevent_context *, void (*)(void *, enum tevent_debug_level, const char *, va_list), void *)
+tevent_set_debug_stderr: int (struct tevent_context *)
+tevent_set_default_backend: void (const char *)
+tevent_set_trace_callback: void (struct tevent_context *, tevent_trace_callback_t, void *)
+tevent_signal_support: bool (struct tevent_context *)
+tevent_thread_proxy_create: struct tevent_thread_proxy *(struct tevent_context *)
+tevent_thread_proxy_schedule: void (struct tevent_thread_proxy *, struct tevent_immediate **, tevent_immediate_handler_t, void *)
+tevent_threaded_context_create: struct tevent_threaded_context *(TALLOC_CTX *, struct tevent_context *)
+tevent_timeval_add: struct timeval (const struct timeval *, uint32_t, uint32_t)
+tevent_timeval_compare: int (const struct timeval *, const struct timeval *)
+tevent_timeval_current: struct timeval (void)
+tevent_timeval_current_ofs: struct timeval (uint32_t, uint32_t)
+tevent_timeval_is_zero: bool (const struct timeval *)
+tevent_timeval_set: struct timeval (uint32_t, uint32_t)
+tevent_timeval_until: struct timeval (const struct timeval *, const struct timeval *)
+tevent_timeval_zero: struct timeval (void)
+tevent_trace_point_callback: void (struct tevent_context *, enum tevent_trace_point)
+tevent_update_timer: void (struct tevent_timer *, struct timeval)
+tevent_wakeup_recv: bool (struct tevent_req *)
+tevent_wakeup_send: struct tevent_req *(TALLOC_CTX *, struct tevent_context *, struct timeval)
diff --git a/lib/tevent/ABI/tevent-0.9.38.sigs b/lib/tevent/ABI/tevent-0.9.38.sigs
new file mode 100644
index 0000000..f6227db
--- /dev/null
+++ b/lib/tevent/ABI/tevent-0.9.38.sigs
@@ -0,0 +1,126 @@
+_tevent_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+_tevent_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+_tevent_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+_tevent_context_pop_use: void (struct tevent_context *, const char *)
+_tevent_context_push_use: bool (struct tevent_context *, const char *)
+_tevent_context_wrapper_create: struct tevent_context *(struct tevent_context *, TALLOC_CTX *, const struct tevent_wrapper_ops *, void *, size_t, const char *, const char *)
+_tevent_create_immediate: struct tevent_immediate *(TALLOC_CTX *, const char *)
+_tevent_loop_once: int (struct tevent_context *, const char *)
+_tevent_loop_until: int (struct tevent_context *, bool (*)(void *), void *, const char *)
+_tevent_loop_wait: int (struct tevent_context *, const char *)
+_tevent_queue_create: struct tevent_queue *(TALLOC_CTX *, const char *, const char *)
+_tevent_req_callback_data: void *(struct tevent_req *)
+_tevent_req_cancel: bool (struct tevent_req *, const char *)
+_tevent_req_create: struct tevent_req *(TALLOC_CTX *, void *, size_t, const char *, const char *)
+_tevent_req_data: void *(struct tevent_req *)
+_tevent_req_done: void (struct tevent_req *, const char *)
+_tevent_req_error: bool (struct tevent_req *, uint64_t, const char *)
+_tevent_req_nomem: bool (const void *, struct tevent_req *, const char *)
+_tevent_req_notify_callback: void (struct tevent_req *, const char *)
+_tevent_req_oom: void (struct tevent_req *, const char *)
+_tevent_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+_tevent_threaded_schedule_immediate: void (struct tevent_threaded_context *, struct tevent_immediate *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_abort: void (struct tevent_context *, const char *)
+tevent_backend_list: const char **(TALLOC_CTX *)
+tevent_cleanup_pending_signal_handlers: void (struct tevent_signal *)
+tevent_common_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+tevent_common_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+tevent_common_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+tevent_common_add_timer_v2: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+tevent_common_check_double_free: void (TALLOC_CTX *, const char *)
+tevent_common_check_signal: int (struct tevent_context *)
+tevent_common_context_destructor: int (struct tevent_context *)
+tevent_common_fd_destructor: int (struct tevent_fd *)
+tevent_common_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_common_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_common_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_common_have_events: bool (struct tevent_context *)
+tevent_common_invoke_fd_handler: int (struct tevent_fd *, uint16_t, bool *)
+tevent_common_invoke_immediate_handler: int (struct tevent_immediate *, bool *)
+tevent_common_invoke_signal_handler: int (struct tevent_signal *, int, int, void *, bool *)
+tevent_common_invoke_timer_handler: int (struct tevent_timer *, struct timeval, bool *)
+tevent_common_loop_immediate: bool (struct tevent_context *)
+tevent_common_loop_timer_delay: struct timeval (struct tevent_context *)
+tevent_common_loop_wait: int (struct tevent_context *, const char *)
+tevent_common_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_common_threaded_activate_immediate: void (struct tevent_context *)
+tevent_common_wakeup: int (struct tevent_context *)
+tevent_common_wakeup_fd: int (int)
+tevent_common_wakeup_init: int (struct tevent_context *)
+tevent_context_init: struct tevent_context *(TALLOC_CTX *)
+tevent_context_init_byname: struct tevent_context *(TALLOC_CTX *, const char *)
+tevent_context_init_ops: struct tevent_context *(TALLOC_CTX *, const struct tevent_ops *, void *)
+tevent_context_is_wrapper: bool (struct tevent_context *)
+tevent_context_same_loop: bool (struct tevent_context *, struct tevent_context *)
+tevent_debug: void (struct tevent_context *, enum tevent_debug_level, const char *, ...)
+tevent_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_fd_set_auto_close: void (struct tevent_fd *)
+tevent_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_get_trace_callback: void (struct tevent_context *, tevent_trace_callback_t *, void *)
+tevent_loop_allow_nesting: void (struct tevent_context *)
+tevent_loop_set_nesting_hook: void (struct tevent_context *, tevent_nesting_hook, void *)
+tevent_num_signals: size_t (void)
+tevent_queue_add: bool (struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_add_entry: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_add_optimize_empty: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_entry_untrigger: void (struct tevent_queue_entry *)
+tevent_queue_length: size_t (struct tevent_queue *)
+tevent_queue_running: bool (struct tevent_queue *)
+tevent_queue_start: void (struct tevent_queue *)
+tevent_queue_stop: void (struct tevent_queue *)
+tevent_queue_wait_recv: bool (struct tevent_req *)
+tevent_queue_wait_send: struct tevent_req *(TALLOC_CTX *, struct tevent_context *, struct tevent_queue *)
+tevent_re_initialise: int (struct tevent_context *)
+tevent_register_backend: bool (const char *, const struct tevent_ops *)
+tevent_req_default_print: char *(struct tevent_req *, TALLOC_CTX *)
+tevent_req_defer_callback: void (struct tevent_req *, struct tevent_context *)
+tevent_req_get_profile: const struct tevent_req_profile *(struct tevent_req *)
+tevent_req_is_error: bool (struct tevent_req *, enum tevent_req_state *, uint64_t *)
+tevent_req_is_in_progress: bool (struct tevent_req *)
+tevent_req_move_profile: struct tevent_req_profile *(struct tevent_req *, TALLOC_CTX *)
+tevent_req_poll: bool (struct tevent_req *, struct tevent_context *)
+tevent_req_post: struct tevent_req *(struct tevent_req *, struct tevent_context *)
+tevent_req_print: char *(TALLOC_CTX *, struct tevent_req *)
+tevent_req_profile_append_sub: void (struct tevent_req_profile *, struct tevent_req_profile **)
+tevent_req_profile_create: struct tevent_req_profile *(TALLOC_CTX *)
+tevent_req_profile_get_name: void (const struct tevent_req_profile *, const char **)
+tevent_req_profile_get_start: void (const struct tevent_req_profile *, const char **, struct timeval *)
+tevent_req_profile_get_status: void (const struct tevent_req_profile *, pid_t *, enum tevent_req_state *, uint64_t *)
+tevent_req_profile_get_stop: void (const struct tevent_req_profile *, const char **, struct timeval *)
+tevent_req_profile_get_subprofiles: const struct tevent_req_profile *(const struct tevent_req_profile *)
+tevent_req_profile_next: const struct tevent_req_profile *(const struct tevent_req_profile *)
+tevent_req_profile_set_name: bool (struct tevent_req_profile *, const char *)
+tevent_req_profile_set_start: bool (struct tevent_req_profile *, const char *, struct timeval)
+tevent_req_profile_set_status: void (struct tevent_req_profile *, pid_t, enum tevent_req_state, uint64_t)
+tevent_req_profile_set_stop: bool (struct tevent_req_profile *, const char *, struct timeval)
+tevent_req_received: void (struct tevent_req *)
+tevent_req_reset_endtime: void (struct tevent_req *)
+tevent_req_set_callback: void (struct tevent_req *, tevent_req_fn, void *)
+tevent_req_set_cancel_fn: void (struct tevent_req *, tevent_req_cancel_fn)
+tevent_req_set_cleanup_fn: void (struct tevent_req *, tevent_req_cleanup_fn)
+tevent_req_set_endtime: bool (struct tevent_req *, struct tevent_context *, struct timeval)
+tevent_req_set_print_fn: void (struct tevent_req *, tevent_req_print_fn)
+tevent_req_set_profile: bool (struct tevent_req *)
+tevent_sa_info_queue_count: size_t (void)
+tevent_set_abort_fn: void (void (*)(const char *))
+tevent_set_debug: int (struct tevent_context *, void (*)(void *, enum tevent_debug_level, const char *, va_list), void *)
+tevent_set_debug_stderr: int (struct tevent_context *)
+tevent_set_default_backend: void (const char *)
+tevent_set_trace_callback: void (struct tevent_context *, tevent_trace_callback_t, void *)
+tevent_signal_support: bool (struct tevent_context *)
+tevent_thread_proxy_create: struct tevent_thread_proxy *(struct tevent_context *)
+tevent_thread_proxy_schedule: void (struct tevent_thread_proxy *, struct tevent_immediate **, tevent_immediate_handler_t, void *)
+tevent_threaded_context_create: struct tevent_threaded_context *(TALLOC_CTX *, struct tevent_context *)
+tevent_timeval_add: struct timeval (const struct timeval *, uint32_t, uint32_t)
+tevent_timeval_compare: int (const struct timeval *, const struct timeval *)
+tevent_timeval_current: struct timeval (void)
+tevent_timeval_current_ofs: struct timeval (uint32_t, uint32_t)
+tevent_timeval_is_zero: bool (const struct timeval *)
+tevent_timeval_set: struct timeval (uint32_t, uint32_t)
+tevent_timeval_until: struct timeval (const struct timeval *, const struct timeval *)
+tevent_timeval_zero: struct timeval (void)
+tevent_trace_point_callback: void (struct tevent_context *, enum tevent_trace_point)
+tevent_update_timer: void (struct tevent_timer *, struct timeval)
+tevent_wakeup_recv: bool (struct tevent_req *)
+tevent_wakeup_send: struct tevent_req *(TALLOC_CTX *, struct tevent_context *, struct timeval)
diff --git a/lib/tevent/ABI/tevent-0.9.39.sigs b/lib/tevent/ABI/tevent-0.9.39.sigs
new file mode 100644
index 0000000..f6227db
--- /dev/null
+++ b/lib/tevent/ABI/tevent-0.9.39.sigs
@@ -0,0 +1,126 @@
+_tevent_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+_tevent_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+_tevent_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+_tevent_context_pop_use: void (struct tevent_context *, const char *)
+_tevent_context_push_use: bool (struct tevent_context *, const char *)
+_tevent_context_wrapper_create: struct tevent_context *(struct tevent_context *, TALLOC_CTX *, const struct tevent_wrapper_ops *, void *, size_t, const char *, const char *)
+_tevent_create_immediate: struct tevent_immediate *(TALLOC_CTX *, const char *)
+_tevent_loop_once: int (struct tevent_context *, const char *)
+_tevent_loop_until: int (struct tevent_context *, bool (*)(void *), void *, const char *)
+_tevent_loop_wait: int (struct tevent_context *, const char *)
+_tevent_queue_create: struct tevent_queue *(TALLOC_CTX *, const char *, const char *)
+_tevent_req_callback_data: void *(struct tevent_req *)
+_tevent_req_cancel: bool (struct tevent_req *, const char *)
+_tevent_req_create: struct tevent_req *(TALLOC_CTX *, void *, size_t, const char *, const char *)
+_tevent_req_data: void *(struct tevent_req *)
+_tevent_req_done: void (struct tevent_req *, const char *)
+_tevent_req_error: bool (struct tevent_req *, uint64_t, const char *)
+_tevent_req_nomem: bool (const void *, struct tevent_req *, const char *)
+_tevent_req_notify_callback: void (struct tevent_req *, const char *)
+_tevent_req_oom: void (struct tevent_req *, const char *)
+_tevent_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+_tevent_threaded_schedule_immediate: void (struct tevent_threaded_context *, struct tevent_immediate *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_abort: void (struct tevent_context *, const char *)
+tevent_backend_list: const char **(TALLOC_CTX *)
+tevent_cleanup_pending_signal_handlers: void (struct tevent_signal *)
+tevent_common_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+tevent_common_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+tevent_common_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+tevent_common_add_timer_v2: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+tevent_common_check_double_free: void (TALLOC_CTX *, const char *)
+tevent_common_check_signal: int (struct tevent_context *)
+tevent_common_context_destructor: int (struct tevent_context *)
+tevent_common_fd_destructor: int (struct tevent_fd *)
+tevent_common_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_common_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_common_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_common_have_events: bool (struct tevent_context *)
+tevent_common_invoke_fd_handler: int (struct tevent_fd *, uint16_t, bool *)
+tevent_common_invoke_immediate_handler: int (struct tevent_immediate *, bool *)
+tevent_common_invoke_signal_handler: int (struct tevent_signal *, int, int, void *, bool *)
+tevent_common_invoke_timer_handler: int (struct tevent_timer *, struct timeval, bool *)
+tevent_common_loop_immediate: bool (struct tevent_context *)
+tevent_common_loop_timer_delay: struct timeval (struct tevent_context *)
+tevent_common_loop_wait: int (struct tevent_context *, const char *)
+tevent_common_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_common_threaded_activate_immediate: void (struct tevent_context *)
+tevent_common_wakeup: int (struct tevent_context *)
+tevent_common_wakeup_fd: int (int)
+tevent_common_wakeup_init: int (struct tevent_context *)
+tevent_context_init: struct tevent_context *(TALLOC_CTX *)
+tevent_context_init_byname: struct tevent_context *(TALLOC_CTX *, const char *)
+tevent_context_init_ops: struct tevent_context *(TALLOC_CTX *, const struct tevent_ops *, void *)
+tevent_context_is_wrapper: bool (struct tevent_context *)
+tevent_context_same_loop: bool (struct tevent_context *, struct tevent_context *)
+tevent_debug: void (struct tevent_context *, enum tevent_debug_level, const char *, ...)
+tevent_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_fd_set_auto_close: void (struct tevent_fd *)
+tevent_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_get_trace_callback: void (struct tevent_context *, tevent_trace_callback_t *, void *)
+tevent_loop_allow_nesting: void (struct tevent_context *)
+tevent_loop_set_nesting_hook: void (struct tevent_context *, tevent_nesting_hook, void *)
+tevent_num_signals: size_t (void)
+tevent_queue_add: bool (struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_add_entry: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_add_optimize_empty: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_entry_untrigger: void (struct tevent_queue_entry *)
+tevent_queue_length: size_t (struct tevent_queue *)
+tevent_queue_running: bool (struct tevent_queue *)
+tevent_queue_start: void (struct tevent_queue *)
+tevent_queue_stop: void (struct tevent_queue *)
+tevent_queue_wait_recv: bool (struct tevent_req *)
+tevent_queue_wait_send: struct tevent_req *(TALLOC_CTX *, struct tevent_context *, struct tevent_queue *)
+tevent_re_initialise: int (struct tevent_context *)
+tevent_register_backend: bool (const char *, const struct tevent_ops *)
+tevent_req_default_print: char *(struct tevent_req *, TALLOC_CTX *)
+tevent_req_defer_callback: void (struct tevent_req *, struct tevent_context *)
+tevent_req_get_profile: const struct tevent_req_profile *(struct tevent_req *)
+tevent_req_is_error: bool (struct tevent_req *, enum tevent_req_state *, uint64_t *)
+tevent_req_is_in_progress: bool (struct tevent_req *)
+tevent_req_move_profile: struct tevent_req_profile *(struct tevent_req *, TALLOC_CTX *)
+tevent_req_poll: bool (struct tevent_req *, struct tevent_context *)
+tevent_req_post: struct tevent_req *(struct tevent_req *, struct tevent_context *)
+tevent_req_print: char *(TALLOC_CTX *, struct tevent_req *)
+tevent_req_profile_append_sub: void (struct tevent_req_profile *, struct tevent_req_profile **)
+tevent_req_profile_create: struct tevent_req_profile *(TALLOC_CTX *)
+tevent_req_profile_get_name: void (const struct tevent_req_profile *, const char **)
+tevent_req_profile_get_start: void (const struct tevent_req_profile *, const char **, struct timeval *)
+tevent_req_profile_get_status: void (const struct tevent_req_profile *, pid_t *, enum tevent_req_state *, uint64_t *)
+tevent_req_profile_get_stop: void (const struct tevent_req_profile *, const char **, struct timeval *)
+tevent_req_profile_get_subprofiles: const struct tevent_req_profile *(const struct tevent_req_profile *)
+tevent_req_profile_next: const struct tevent_req_profile *(const struct tevent_req_profile *)
+tevent_req_profile_set_name: bool (struct tevent_req_profile *, const char *)
+tevent_req_profile_set_start: bool (struct tevent_req_profile *, const char *, struct timeval)
+tevent_req_profile_set_status: void (struct tevent_req_profile *, pid_t, enum tevent_req_state, uint64_t)
+tevent_req_profile_set_stop: bool (struct tevent_req_profile *, const char *, struct timeval)
+tevent_req_received: void (struct tevent_req *)
+tevent_req_reset_endtime: void (struct tevent_req *)
+tevent_req_set_callback: void (struct tevent_req *, tevent_req_fn, void *)
+tevent_req_set_cancel_fn: void (struct tevent_req *, tevent_req_cancel_fn)
+tevent_req_set_cleanup_fn: void (struct tevent_req *, tevent_req_cleanup_fn)
+tevent_req_set_endtime: bool (struct tevent_req *, struct tevent_context *, struct timeval)
+tevent_req_set_print_fn: void (struct tevent_req *, tevent_req_print_fn)
+tevent_req_set_profile: bool (struct tevent_req *)
+tevent_sa_info_queue_count: size_t (void)
+tevent_set_abort_fn: void (void (*)(const char *))
+tevent_set_debug: int (struct tevent_context *, void (*)(void *, enum tevent_debug_level, const char *, va_list), void *)
+tevent_set_debug_stderr: int (struct tevent_context *)
+tevent_set_default_backend: void (const char *)
+tevent_set_trace_callback: void (struct tevent_context *, tevent_trace_callback_t, void *)
+tevent_signal_support: bool (struct tevent_context *)
+tevent_thread_proxy_create: struct tevent_thread_proxy *(struct tevent_context *)
+tevent_thread_proxy_schedule: void (struct tevent_thread_proxy *, struct tevent_immediate **, tevent_immediate_handler_t, void *)
+tevent_threaded_context_create: struct tevent_threaded_context *(TALLOC_CTX *, struct tevent_context *)
+tevent_timeval_add: struct timeval (const struct timeval *, uint32_t, uint32_t)
+tevent_timeval_compare: int (const struct timeval *, const struct timeval *)
+tevent_timeval_current: struct timeval (void)
+tevent_timeval_current_ofs: struct timeval (uint32_t, uint32_t)
+tevent_timeval_is_zero: bool (const struct timeval *)
+tevent_timeval_set: struct timeval (uint32_t, uint32_t)
+tevent_timeval_until: struct timeval (const struct timeval *, const struct timeval *)
+tevent_timeval_zero: struct timeval (void)
+tevent_trace_point_callback: void (struct tevent_context *, enum tevent_trace_point)
+tevent_update_timer: void (struct tevent_timer *, struct timeval)
+tevent_wakeup_recv: bool (struct tevent_req *)
+tevent_wakeup_send: struct tevent_req *(TALLOC_CTX *, struct tevent_context *, struct timeval)
diff --git a/lib/tevent/ABI/tevent-0.9.9.sigs b/lib/tevent/ABI/tevent-0.9.9.sigs
new file mode 100644
index 0000000..9adaba5
--- /dev/null
+++ b/lib/tevent/ABI/tevent-0.9.9.sigs
@@ -0,0 +1,73 @@
+_tevent_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+_tevent_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+_tevent_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+_tevent_create_immediate: struct tevent_immediate *(TALLOC_CTX *, const char *)
+_tevent_loop_once: int (struct tevent_context *, const char *)
+_tevent_loop_until: int (struct tevent_context *, bool (*)(void *), void *, const char *)
+_tevent_loop_wait: int (struct tevent_context *, const char *)
+_tevent_queue_create: struct tevent_queue *(TALLOC_CTX *, const char *, const char *)
+_tevent_req_callback_data: void *(struct tevent_req *)
+_tevent_req_cancel: bool (struct tevent_req *, const char *)
+_tevent_req_create: struct tevent_req *(TALLOC_CTX *, void *, size_t, const char *, const char *)
+_tevent_req_data: void *(struct tevent_req *)
+_tevent_req_done: void (struct tevent_req *, const char *)
+_tevent_req_error: bool (struct tevent_req *, uint64_t, const char *)
+_tevent_req_nomem: bool (const void *, struct tevent_req *, const char *)
+_tevent_req_notify_callback: void (struct tevent_req *, const char *)
+_tevent_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_backend_list: const char **(TALLOC_CTX *)
+tevent_cleanup_pending_signal_handlers: void (struct tevent_signal *)
+tevent_common_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
+tevent_common_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
+tevent_common_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
+tevent_common_check_signal: int (struct tevent_context *)
+tevent_common_context_destructor: int (struct tevent_context *)
+tevent_common_fd_destructor: int (struct tevent_fd *)
+tevent_common_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_common_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_common_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_common_loop_immediate: bool (struct tevent_context *)
+tevent_common_loop_timer_delay: struct timeval (struct tevent_context *)
+tevent_common_loop_wait: int (struct tevent_context *, const char *)
+tevent_common_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
+tevent_context_init: struct tevent_context *(TALLOC_CTX *)
+tevent_context_init_byname: struct tevent_context *(TALLOC_CTX *, const char *)
+tevent_debug: void (struct tevent_context *, enum tevent_debug_level, const char *, ...)
+tevent_fd_get_flags: uint16_t (struct tevent_fd *)
+tevent_fd_set_auto_close: void (struct tevent_fd *)
+tevent_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
+tevent_fd_set_flags: void (struct tevent_fd *, uint16_t)
+tevent_loop_allow_nesting: void (struct tevent_context *)
+tevent_loop_set_nesting_hook: void (struct tevent_context *, tevent_nesting_hook, void *)
+tevent_queue_add: bool (struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
+tevent_queue_length: size_t (struct tevent_queue *)
+tevent_queue_start: void (struct tevent_queue *)
+tevent_queue_stop: void (struct tevent_queue *)
+tevent_re_initialise: int (struct tevent_context *)
+tevent_register_backend: bool (const char *, const struct tevent_ops *)
+tevent_req_default_print: char *(struct tevent_req *, TALLOC_CTX *)
+tevent_req_is_error: bool (struct tevent_req *, enum tevent_req_state *, uint64_t *)
+tevent_req_is_in_progress: bool (struct tevent_req *)
+tevent_req_poll: bool (struct tevent_req *, struct tevent_context *)
+tevent_req_post: struct tevent_req *(struct tevent_req *, struct tevent_context *)
+tevent_req_print: char *(TALLOC_CTX *, struct tevent_req *)
+tevent_req_received: void (struct tevent_req *)
+tevent_req_set_callback: void (struct tevent_req *, tevent_req_fn, void *)
+tevent_req_set_cancel_fn: void (struct tevent_req *, tevent_req_cancel_fn)
+tevent_req_set_endtime: bool (struct tevent_req *, struct tevent_context *, struct timeval)
+tevent_req_set_print_fn: void (struct tevent_req *, tevent_req_print_fn)
+tevent_set_abort_fn: void (void (*)(const char *))
+tevent_set_debug: int (struct tevent_context *, void (*)(void *, enum tevent_debug_level, const char *, va_list), void *)
+tevent_set_debug_stderr: int (struct tevent_context *)
+tevent_set_default_backend: void (const char *)
+tevent_signal_support: bool (struct tevent_context *)
+tevent_timeval_add: struct timeval (const struct timeval *, uint32_t, uint32_t)
+tevent_timeval_compare: int (const struct timeval *, const struct timeval *)
+tevent_timeval_current: struct timeval (void)
+tevent_timeval_current_ofs: struct timeval (uint32_t, uint32_t)
+tevent_timeval_is_zero: bool (const struct timeval *)
+tevent_timeval_set: struct timeval (uint32_t, uint32_t)
+tevent_timeval_until: struct timeval (const struct timeval *, const struct timeval *)
+tevent_timeval_zero: struct timeval (void)
+tevent_wakeup_recv: bool (struct tevent_req *)
+tevent_wakeup_send: struct tevent_req *(TALLOC_CTX *, struct tevent_context *, struct timeval)
diff --git a/lib/tevent/Makefile b/lib/tevent/Makefile
new file mode 100644
index 0000000..6a3aab0
--- /dev/null
+++ b/lib/tevent/Makefile
@@ -0,0 +1,52 @@
+# simple makefile wrapper to run waf
+WAF_BIN=`PATH=buildtools/bin:../../buildtools/bin:$$PATH which waf`
+WAF_BINARY=$(PYTHON) $(WAF_BIN)
+WAF=PYTHONHASHSEED=1 WAF_MAKE=1 $(WAF_BINARY)
+
+all:
+	$(WAF) build
+
+install:
+	$(WAF) install
+
+uninstall:
+	$(WAF) uninstall
+
+test:
+	$(WAF) test $(TEST_OPTIONS)
+
+dist:
+	touch .tmplock
+	WAFLOCK=.tmplock $(WAF) dist
+
+distcheck:
+	touch .tmplock
+	WAFLOCK=.tmplock $(WAF) distcheck
+
+clean:
+	$(WAF) clean
+
+distclean:
+	$(WAF) distclean
+
+reconfigure: configure
+	$(WAF) reconfigure
+
+show_waf_options:
+	$(WAF) --help
+
+# some compatibility make targets
+everything: all
+
+testsuite: all
+
+check: test
+
+# this should do an install as well, once install is finished
+installcheck: test
+
+etags:
+	$(WAF) etags
+
+ctags:
+	$(WAF) ctags
diff --git a/lib/tevent/bindings.py b/lib/tevent/bindings.py
new file mode 100644
index 0000000..f5e1499
--- /dev/null
+++ b/lib/tevent/bindings.py
@@ -0,0 +1,116 @@
+#!/usr/bin/python
+#
+#   Python integration for tevent - tests
+#
+#   Copyright (C) Jelmer Vernooij 2010
+#
+#     ** NOTE! The following LGPL license applies to the tevent
+#     ** library. This does NOT imply that all of Samba is released
+#     ** under the LGPL
+#
+#   This library is free software; you can redistribute it and/or
+#   modify it under the terms of the GNU Lesser General Public
+#   License as published by the Free Software Foundation; either
+#   version 3 of the License, or (at your option) any later version.
+#
+#   This library is distributed in the hope that it will be useful,
+#   but WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#   Lesser General Public License for more details.
+#
+#   You should have received a copy of the GNU Lesser General Public
+#   License along with this library; if not, see <http://www.gnu.org/licenses/>.
+
+import signal
+from unittest import TestCase, TestProgram
+import gc
+
+import _tevent
+
+
+class BackendListTests(TestCase):
+
+    def test_backend_list(self):
+        self.assertTrue(isinstance(_tevent.backend_list(), list))
+
+
+class CreateContextTests(TestCase):
+
+    def test_by_name(self):
+        ctx = _tevent.Context(_tevent.backend_list()[0])
+        self.assertTrue(ctx is not None)
+
+    def test_no_name(self):
+        ctx = _tevent.Context()
+        self.assertTrue(ctx is not None)
+
+
+class ContextTests(TestCase):
+
+    def setUp(self):
+        super(ContextTests, self).setUp()
+        self.ctx = _tevent.Context()
+
+    def test_signal_support(self):
+        self.assertTrue(type(self.ctx.signal_support) is bool)
+
+    def test_reinitialise(self):
+        self.ctx.reinitialise()
+
+    def test_loop_wait(self):
+        self.ctx.loop_wait()
+
+    def test_add_signal(self):
+        sig = self.ctx.add_signal(signal.SIGINT, 0, lambda callback: None)
+        self.assertTrue(isinstance(sig, _tevent.Signal))
+
+    def test_timer(self):
+        """Test a timer is can be scheduled"""
+        collecting_list = []
+        # time "0" has already passed, callback will be scheduled immediately
+        timer = self.ctx.add_timer(0, lambda t: collecting_list.append(True))
+        self.assertTrue(timer.active)
+        self.assertEqual(collecting_list, [])
+        self.ctx.loop_once()
+        self.assertFalse(timer.active)
+        self.assertEqual(collecting_list, [True])
+
+    def test_timer_deallocate_timer(self):
+        """Test timer is scheduled even if reference to it isn't held"""
+        collecting_list = []
+
+        def callback(t):
+            collecting_list.append(True)
+        timer = self.ctx.add_timer(0, lambda t: collecting_list.append(True))
+        gc.collect()
+        self.assertEqual(collecting_list, [])
+        self.ctx.loop_once()
+        self.assertEqual(collecting_list, [True])
+
+    def test_timer_deallocate_context(self):
+        """Test timer is unscheduled when context is freed"""
+        collecting_list = []
+
+        def callback(t):
+            collecting_list.append(True)
+        timer = self.ctx.add_timer(0, lambda t: collecting_list.append(True))
+        self.assertTrue(timer.active)
+        del self.ctx
+        gc.collect()
+        self.assertEqual(collecting_list, [])
+        self.assertFalse(timer.active)
+
+    def test_timer_offset(self):
+        """Test scheduling timer with an offset"""
+        collecting_list = []
+        self.ctx.add_timer_offset(0.2, lambda t: collecting_list.append(2))
+        self.ctx.add_timer_offset(0.1, lambda t: collecting_list.append(1))
+        self.assertEqual(collecting_list, [])
+        self.ctx.loop_once()
+        self.assertEqual(collecting_list, [1])
+        self.ctx.loop_once()
+        self.assertEqual(collecting_list, [1, 2])
+
+
+if __name__ == '__main__':
+    TestProgram()
diff --git a/lib/tevent/configure b/lib/tevent/configure
new file mode 100755
index 0000000..7b972bd
--- /dev/null
+++ b/lib/tevent/configure
@@ -0,0 +1,28 @@
+#!/bin/sh
+
+PREVPATH=$(dirname $0)
+
+if [ -f $PREVPATH/../../buildtools/bin/waf ]; then
+	WAF=../../buildtools/bin/waf
+elif [ -f $PREVPATH/buildtools/bin/waf ]; then
+	WAF=./buildtools/bin/waf
+else
+	echo "tevent: Unable to find waf"
+	exit 1
+fi
+
+# using JOBS=1 gives maximum compatibility with
+# systems like AIX which have broken threading in python
+JOBS=1
+export JOBS
+
+# Make sure we don't have any library preloaded.
+unset LD_PRELOAD
+
+# Make sure we get stable hashes
+PYTHONHASHSEED=1
+export PYTHONHASHSEED
+
+cd . || exit 1
+$PYTHON $WAF configure "$@" || exit 1
+cd $PREVPATH
diff --git a/lib/tevent/doc/img/tevent_context_stucture.png b/lib/tevent/doc/img/tevent_context_stucture.png
new file mode 100644
index 0000000..fba8161
--- /dev/null
+++ b/lib/tevent/doc/img/tevent_context_stucture.png
diff --git a/lib/tevent/doc/img/tevent_subrequest.png b/lib/tevent/doc/img/tevent_subrequest.png
new file mode 100644
index 0000000..ea79223
--- /dev/null
+++ b/lib/tevent/doc/img/tevent_subrequest.png
diff --git a/lib/tevent/doc/mainpage.dox b/lib/tevent/doc/mainpage.dox
new file mode 100644
index 0000000..5b76013
--- /dev/null
+++ b/lib/tevent/doc/mainpage.dox
@@ -0,0 +1,47 @@
+/**
+ * @mainpage
+ *
+ * Tevent is an event system based on the talloc memory management library. It
+ * is the core event system used in Samba.
+ *
+ * The low level tevent has support for many event types, including timers,
+ * signals, and the classic file descriptor events.
+ *
+ * Tevent also provide helpers to deal with asynchronous code providing the
+ * tevent_req (tevent request) functions.
+ *
+ * @section main_tevent_tutorial Tutorial
+ *
+ * You should start by reading @subpage tevent_tutorial, then reading the
+ * documentation of the interesting functions as you go.
+ *
+ * @section main_tevent_download Download
+ *
+ * You can download the latest releases of tevent from the
+ * <a href="http://samba.org/ftp/tevent" target="_blank">tevent directory</a>
+ * on the samba public source archive.
+ *
+ * @section main_tevent_bugs Discussion and bug reports
+ *
+ * tevent does not currently have its own mailing list or bug tracking system.
+ * For now, please use the
+ * <a href="https://lists.samba.org/mailman/listinfo/samba-technical" target="_blank">samba-technical</a>
+ * mailing list, and the
+ * <a href="http://bugzilla.samba.org/" target="_blank">Samba bugzilla</a>
+ * bug tracking system.
+ *
+ * @section main_tevent_devel Development
+ * You can download the latest code either via git or rsync.
+ *
+ * To fetch via git see the following guide:
+ *
+ * <a href="http://wiki.samba.org/index.php/Using_Git_for_Samba_Development" target="_blank">Using Git for Samba Development</a>
+ *
+ * Once you have cloned the tree switch to the master branch and cd into the
+ * lib/tevent directory.
+ *
+ * To fetch via rsync use this command:
+ *
+ *   rsync -Pavz samba.org::ftp/unpacked/standalone_projects/lib/tevent .
+ *
+ */
diff --git a/lib/tevent/doc/tevent_context.dox b/lib/tevent/doc/tevent_context.dox
new file mode 100644
index 0000000..39eb85e
--- /dev/null
+++ b/lib/tevent/doc/tevent_context.dox
@@ -0,0 +1,75 @@
+/**
+@page tevent_context Chapter 1: Tevent context
+
+@section context Tevent context
+
+Tevent context is an essential logical unit of tevent library. For working with
+events at least one such context has to be created - allocated, initialized.
+Then, events which are meant to be caught and handled have to be registered
+within this specific context. Reason for subordinating events to a tevent
+context structure rises from the fact that several context can be created and
+each of them is processed at different time. So, there can be 1 context
+containing just file descriptor events, another one taking care of signal and
+time events and the third one which keeps information about the rest.
+
+Tevent loops are the part of the library which represents the mechanism where
+noticing events and triggering handlers actually happens. They accept just one
+argument - tevent context structure. Therefore if theoretically an infinity
+loop (tevent_loop_wait) was called, only those arguments which belong to the
+passed tevent context structure can be caught and invoked within this call.
+Although some more signal events were registered (but within some other
+context) they will not be noticed.
+
+@subsection Example
+
+First lines which handle <code>mem_ctx</code> belong to talloc library
+knowledge but because of the fact that tevent uses the talloc library for its
+mechanisms it is necessary to understand a bit talloc as well. For more
+information about working with talloc, please visit <a
+href="http://talloc.samba.org/">talloc website</a> where tutorial and
+documentation are located.
+
+Tevent context structure <code>*event_ctx</code> represents the unit which will
+further contain information about registered events. It is created via calling
+tevent_context_init().
+
+@code
+TALLOC_CTX *mem_ctx = talloc_new(NULL);
+if (mem_ctx == NULL) {
+    // error handling
+}
+
+struct tevent_context *ev_ctx = tevent_context_init(mem_ctx);
+if(ev_ctx == NULL) {
+    // error handling
+}
+@endcode
+
+Tevent context has a structure containing lots of information. It include lists
+of all events which are divided according their type and are in order showing
+the sequence as they came.
+
+@image html tevent_context_stucture.png
+
+In addition to the lists shown in the diagram, the tevent context also contains
+many other data (e.g. information about the available system mechanism for
+triggering callbacks).
+
+@section tevent_loops Tevent loops
+
+Tevent loops are the dispatcher for events. They catch them and trigger the
+handlers. In the case of longer processes, the program spends most of its time
+at this point waiting for events, invoking handlers and waiting for another
+event again. There are 2 types of loop available for use in tevent library:
+
+<ul>
+<li>int tevent_loop_wait()</li>
+<li>int tevent_loop_once()</li>
+</ul>
+
+Both of functions accept just one parameter (tevent context) and the only
+difference lies in the fact that the first loop can theoretically last for ever
+but the second one will wait just for a single one event to catch and then the
+loop breaks and the program continue.
+
+*/
diff --git a/lib/tevent/doc/tevent_data.dox b/lib/tevent/doc/tevent_data.dox
new file mode 100644
index 0000000..dbe7a04
--- /dev/null
+++ b/lib/tevent/doc/tevent_data.dox
@@ -0,0 +1,137 @@
+/**
+@page tevent_data Chapter 3: Accessing data
+@section data Accessing data with tevent
+
+A tevent request is (usually) created together with a structure for storing the
+data necessary for an asynchronous computation. For these private data, tevent
+library uses void (generic) pointers, therefore any data type can be very
+simply pointed at. However, this attitude requires clear and guaranteed
+knowledge of the data type that will be handled, in advance. Private data can
+be of 2 types: connected with a request itself or given as an individual
+argument to a callback. It is necessary to differentiate these types, because
+there is a slightly different method of data access for each. There are two
+possibilities how to access data that is given as an argument directly to a
+callback. The difference lies in the pointer that is returned. In one case it
+is the data type specified in the function’s argument, in another void* is
+returned.
+
+@code
+void tevent_req_callback_data (struct tevent_req *req, #type)
+void tevent_req_callback_data_void (struct tevent_req *req)
+@endcode
+
+
+To obtain data that are strictly bound to a request, this function is the only
+direct procedure.
+
+@code
+void *tevent_req_data (struct tevent_req *req, #type)
+@endcode
+
+Example with both calls which differs between private data within tevent
+request and data handed over as an argument.
+
+@code
+#include <stdio.h>
+#include <unistd.h>
+#include <tevent.h>
+
+struct foo_state {
+    int x;
+};
+
+struct testA {
+    int y;
+};
+
+
+static void foo_done(struct tevent_req *req) {
+    // a->x contains 10 since it came from foo_send
+    struct foo_state *a = tevent_req_data(req, struct foo_state);
+
+    // b->y contains 9 since it came from run
+    struct testA *b = tevent_req_callback_data(req, struct testA);
+
+    // c->y contains 9 since it came from run we just used a different way
+    // of getting it.
+    struct testA *c = (struct testA *)tevent_req_callback_data_void(req);
+
+    printf("a->x: %d\n", a->x);
+    printf("b->y: %d\n", b->y);
+    printf("c->y: %d\n", c->y);
+}
+
+
+struct tevent_req * foo_send(TALLOC_CTX *mem_ctx, struct tevent_context *event_ctx) {
+
+printf("_send\n");
+struct tevent_req *req;
+struct foo_state *state;
+
+req = tevent_req_create(event_ctx, &state, struct foo_state);
+state->x = 10;
+
+return req;
+}
+
+static void run(struct tevent_context *ev, struct tevent_timer *te,
+                struct timeval current_time, void *private_data) {
+    struct tevent_req *req;
+    struct testA *tmp = talloc(ev, struct testA);
+
+    // Note that we did not use the private data passed in
+
+    tmp->y = 9;
+    req = foo_send(ev, ev);
+
+    tevent_req_set_callback(req, foo_done, tmp);
+    tevent_req_done(req);
+
+}
+
+int main (int argc, char **argv) {
+
+    struct tevent_context *event_ctx;
+    struct testA *data;
+    TALLOC_CTX *mem_ctx;
+    struct tevent_timer *time_event;
+
+    mem_ctx = talloc_new(NULL); //parent
+    if (mem_ctx == NULL)
+        return EXIT_FAILURE;
+
+    event_ctx = tevent_context_init(mem_ctx);
+    if (event_ctx == NULL)
+        return EXIT_FAILURE;
+
+    data = talloc(mem_ctx, struct testA);
+    data->y = 11;
+
+    time_event = tevent_add_timer(event_ctx,
+                                  mem_ctx,
+                                  tevent_timeval_current(),
+                                  run,
+                                  data);
+    if (time_event == NULL) {
+        fprintf(stderr, " FAILED\n");
+        return EXIT_FAILURE;
+    }
+
+    tevent_loop_once(event_ctx);
+
+    talloc_free(mem_ctx);
+
+    printf("Quit\n");
+    return EXIT_SUCCESS;
+}
+@endcode
+
+Output of this example is:
+
+@code
+a->x: 10
+b->y: 9
+c->y: 9
+@endcode
+
+*/
diff --git a/lib/tevent/doc/tevent_events.dox b/lib/tevent/doc/tevent_events.dox
new file mode 100644
index 0000000..d56af25
--- /dev/null
+++ b/lib/tevent/doc/tevent_events.dox
@@ -0,0 +1,341 @@
+/**
+@page tevent_events Chapter 2: Tevent events
+@section pools Tevent events
+
+Ok, after reading previous chapter we can start doing something useful. So, the
+way of creating events is similar for all types - signals, file descriptors,
+time or immediate events. At the beginning it is good to know about some
+typedefs which are set in tevent library and which specify the arguments for
+each callback. These callbacks are:
+
+- tevent_timer_handler_t()
+
+- tevent_immediate_handler_t()
+
+- tevent_signal_handler_t()
+
+- tevent_fd_handler_t()
+
+According their names it is obvious that for creating callback for e.g. time
+event, tevent_timer_handler_t will be used.
+
+The best way how to introduce registering an event and setting up a callback
+would be example, so examples describing all the types of events follow.
+
+@subsection Time Time event
+
+This example shows how to set up an event which will be repeated for a minute
+with interval of 2 seconds (will be triggered 30 times). After exceeding this
+limit, the event loop will finish and all the memory resources will be freed.
+This is just example describing repeated activity, nothing usefull is done
+within foo function
+
+@code
+#include <stdio.h>
+#include <unistd.h>
+#include <tevent.h>
+#include <sys/time.h>
+
+struct state {
+     struct timeval endtime;
+     int counter;
+     TALLOC_CTX *ctx;
+};
+
+static void callback(struct tevent_context *ev, struct tevent_timer *tim,
+                     struct timeval current_time, void *private_data)
+{
+    struct state *data = talloc_get_type_abort(private_data, struct state);
+    struct tevent_timer *time_event;
+    struct timeval schedule;
+
+    printf("Data value: %d\n", data->counter);
+    data->counter += 1; // increase counter
+
+    // if time has not reached its limit, set another event
+    if (tevent_timeval_compare(&current_time, &(data->endtime)) < 0) {
+        // do something
+        // set repeat with delay 2 seconds
+        schedule = tevent_timeval_current_ofs(2, 0);
+        time_event = tevent_add_timer(ev, data->ctx, schedule, callback, data);
+        if (time_event == NULL) { // error ...
+            fprintf(stderr, "MEMORY PROBLEM\n");
+            return;
+        }
+    } else {
+        // time limit exceeded
+    }
+}
+
+int main(void)  {
+    struct tevent_context *event_ctx;
+    TALLOC_CTX *mem_ctx;
+    struct tevent_timer *time_event;
+    struct timeval schedule;
+
+    mem_ctx = talloc_new(NULL); // parent
+    event_ctx = tevent_context_init(mem_ctx);
+
+    struct state *data = talloc(mem_ctx, struct state);
+
+    schedule = tevent_timeval_current_ofs(2, 0); // +2 second time value
+    data->endtime = tevent_timeval_add(&schedule, 60, 0); // one minute time limit
+    data->ctx = mem_ctx;
+    data->counter = 0;
+
+    // add time event
+    time_event = tevent_add_timer(event_ctx, mem_ctx, schedule, callback, data);
+    if (time_event == NULL) {
+        fprintf(stderr, "FAILED\n");
+        return EXIT_FAILURE;
+    }
+
+    tevent_loop_wait(event_ctx);
+    talloc_free(mem_ctx);
+    return EXIT_SUCCESS;
+}
+@endcode
+
+Variable <code>counter</code> is only used for counting the number of triggered
+functions. List of all available functions which tevent offers for working with
+time are listed
+<a href="http://tevent.samba.org/group__tevent__helpers.html">here</a> together
+with their description. More detailed view at these functions is unnecessary
+because their purpose and usage is quite simple and clear.
+
+@subsection Immediate Immediate event
+
+These events are, as their name indicates, activated and performed immediately.
+It means that this kind of events have priority over others (except signal
+events). So if there is a bulk of events registered and after that a
+tevent loop is launched, then all the immediate events will be triggered before
+the other events. Except other immediate events (and signal events) because
+they are also processed sequentially - according the order they were scheduled.
+Signals have the highest priority and therefore they are processed
+preferentially. Therefore the expression immediate may not correspond exactly
+to the dictionary definition of "something without delay" but rather "as soon
+as possible" after all preceding immediate events.
+
+For creating an immediate event there is a small different which lies in the
+fact that the creation of such event is done in 2 steps. One represents the
+creation (memory allocation), the second one represents registering as the
+event within some tevent context.
+
+@code
+struct tevent_immediate *run(TALLOC_CTX* mem_ctx,
+                             struct tevent_context event_ctx,
+                             void * data)
+{
+    struct tevent_immediate *im;
+
+    im = tevent_create_immediate(mem_ctx);
+    if (im == NULL) {
+        return NULL;
+    }
+    tevent_schedule_immediate(im, event_ctx, foo, data);
+
+    return im;
+}
+@endcode
+
+Example which may be compiled and run representing the creation of immediate event.
+
+@code
+
+#include <stdio.h>
+#include <unistd.h>
+#include <tevent.h>
+
+struct info_struct {
+    int counter;
+};
+
+static void foo(struct tevent_context *ev, struct tevent_immediate *im,
+                void *private_data)
+{
+    struct info_struct *data = talloc_get_type_abort(private_data, struct info_struct);
+    printf("Data value: %d\n", data->counter);
+}
+
+int main (void) {
+    struct tevent_context *event_ctx;
+    TALLOC_CTX *mem_ctx;
+    struct tevent_immediate *im;
+
+    printf("INIT\n");
+
+    mem_ctx = talloc_new(NULL);
+    event_ctx = tevent_context_init(mem_ctx);
+
+    struct info_struct *data = talloc(mem_ctx, struct info_struct);
+
+    // setting up private data
+    data->counter = 1;
+
+    // first immediate event
+    im = tevent_create_immediate(mem_ctx);
+    if (im == NULL) {
+        fprintf(stderr, "FAILED\n");
+        return EXIT_FAILURE;
+    }
+    tevent_schedule_immediate(im, event_ctx, foo, data);
+
+    tevent_loop_wait(event_ctx);
+    talloc_free(mem_ctx);
+
+    return 0;
+}
+@endcode
+
+@subsection Signal Signal event
+
+This is an alternative to standard C library functions signal() or sigaction().
+The main difference that distinguishes these ways of treating signals is their
+setting up of handlers for different time intervals of the running program. 
+
+While standard C library methods for dealing with signals offer sufficient
+tools for most cases, they are inadequate for handling signals within the
+tevent loop. It could be necessary to finish certain tevent requests within the
+tevent loop without interruption. If a signal was sent to a program at a moment
+when the tevent loop is in progress, a standard signal handler would not return
+processing to the application at the very same place and it would quit the
+tevent loop for ever. In such cases, tevent signal handlers offer the
+possibility of dealing with these signals by masking them from the rest of
+application and not quitting the loop, so the other events can still be
+processed.
+
+Tevent offers also a control function, which enables us to verify whether it is
+possible to handle signals via tevent, is defined within tevent library and it
+returns a boolean value revealing the result of the verification.
+
+@code
+bool tevent_signal_support (struct tevent_context *ev)
+@endcode
+
+Checking for signal support is not necessary, but if it is not guaranteed, this
+is a good and easy control to prevent unexpected behaviour or failure of the
+program occurring. Such a test of course does not have to be run every single
+time you wish to create a signal handler, but simply at the beginning - during
+the initialization procedures of the program. Afterthat, simply adapt to each
+situation that arises.
+
+@code
+
+#include <stdio.h>
+#include <tevent.h>
+#include <signal.h>
+
+static void handler(struct tevent_context *ev,
+                    struct tevent_signal *se,
+                    int signum,
+                    int count,
+                    void *siginfo,
+                    void *private_data)
+{
+
+    // Do something usefull
+
+    printf("handling signal...\n");
+    exit(EXIT_SUCCESS);
+}
+
+int main (void)
+{
+    struct tevent_context *event_ctx;
+    TALLOC_CTX *mem_ctx;
+    struct tevent_signal *sig;
+
+    mem_ctx = talloc_new(NULL); //parent
+    if (mem_ctx == NULL) {
+        fprintf(stderr, "FAILED\n");
+        return EXIT_FAILURE;
+    }
+
+    event_ctx = tevent_context_init(mem_ctx);
+    if (event_ctx == NULL) {
+        fprintf(stderr, "FAILED\n");
+        return EXIT_FAILURE;
+    }
+
+    if (tevent_signal_support(event_ctx)) {
+        // create signal event
+        sig = tevent_add_signal(event_ctx, mem_ctx, SIGINT, 0, handler, NULL);
+        if (sig == NULL) {
+            fprintf(stderr, "FAILED\n");
+            return EXIT_FAILURE;
+        }
+        tevent_loop_wait(event_ctx);
+    }
+
+    talloc_free(mem_ctx);
+    return EXIT_SUCCESS;
+}
+@endcode
+
+
+@subsection File File descriptor event
+
+Support of events on file descriptors is mainly useful for socket communication
+but it certainly works flawlessly with standard streams (stdin, stdout, stderr)
+    as well. Working asynchronously with file descriptors enables switching
+    within processing I/O operations. This ability may rise with a greater
+    number of I/O operations and such overlapping leads to enhancement of the
+    throughput.
+
+There are several other functions included in tevent API related to handling
+file descriptors (there are too many functions defined within tevent therefore
+just some of them are fully described within this thesis. The
+declaration of the rest can be easily found on the library’s website or
+directly from the source code):
+
+<ul>
+<li>tevent_fd_set_close_fn() - can add another function to be called at the
+    moment when a structure tevent fd is freed.</li>
+<li>tevent_fd_set_auto_close() - calling this function can simplify the
+    maintenance of file descriptors, because it instructs tevent to close the
+    appropriate file descriptor when the tevent fd structure is about to be
+    freed.</li>
+<li>tevent_fd_get_flags() - returns flags which are set on the file descriptor
+    connected with this tevent fd structure.</li>
+<li>tevent_fd_set_flags() - sets specified flags on the event’s file
+    descriptor.</li>
+</ul>
+
+@code
+
+static void close_fd(struct tevent_context *ev, struct tevent_fd *fd_event,
+                     int fd, void *private_data)
+{
+    // processing when fd_event is freed
+}
+
+struct static void handler(struct tevent_context *ev,
+                           struct tevent_fd *fde,
+                           uint16_t flags,
+                           void *private_data)
+{
+    // handling event; reading from a file descriptor
+    tevent_fd_set_close_fn (fd_event, close_fd);
+}
+
+int run(TALLOC_CTX *mem_ctx, struct tevent_context *event_ctx,
+        int fd, uint16_t flags, char *buffer)
+{
+    struct tevent_fd* fd_event = NULL;
+
+    if (flags & TEVENT_FD_READ) {
+        fd_event = tevent_add_fd(event_ctx,
+                                 mem_ctx,
+                                 fd,
+                                 flags,
+                                 handler,
+                                 buffer);
+    }
+    if (fd_event == NULL) {
+        // error handling
+    }
+    return tevent_loop_once();
+}
+@endcode
+
+*/
diff --git a/lib/tevent/doc/tevent_queue.dox b/lib/tevent/doc/tevent_queue.dox
new file mode 100644
index 0000000..9c247e5
--- /dev/null
+++ b/lib/tevent/doc/tevent_queue.dox
@@ -0,0 +1,275 @@
+/**
+@page tevent_queue Chapter 5: Tevent queue
+@section queue Tevent queue
+
+There is a possibility that the dispatcher and its handlers may not be able to
+handle all the incoming events as quickly as they arrive. One way to deal with
+this situation is to buffer the received events by introducing an event queue
+into the events stream, between the events generator and the dispatcher. Events
+are added to the queue as they arrive, and the dispatcher pops them off the
+beginning of the queue as fast as possible. In tevent library it is
+similar, but the queue is not automatically set for any event. The queue has to
+be created on purpose, and events which should follow the order of the FIFO
+queue have to be explicitly pinpointed. Creating such a queue is crucial in
+situations when sequential processing is absolutely essential for the
+successful
+completion of a task, e.g. for a large quantity of data that are about to be
+written from a buffer into a socket. The tevent library has its own queue
+structure that is ready to use after it has been initialized and started up
+once.
+
+@subsection cr_queue Creation of Queues
+
+The first and most important step is the creation of the tevent queue
+(represented by struct tevent_queue), which will then be in running mode.
+
+@code
+struct tevent_queue* tevent_queue_create (TALLOC_CTX *mem_ctx, const char *name)
+@endcode
+
+When the program returns from this function, the allocated memory, set
+destructor and labeled queue as running has been done and the structure is
+ready to be filled with entries. Stopping and starting queues on the run. If
+you need to stop a queue from processing its entries, and then turn it on
+again, a couple of functions which serve this purpose are:
+
+- bool tevent_queue_stop()
+- bool tevent_queue_start()
+
+These functions actually only provide for the simple setting of a variable,
+which indicates that the queue has been stopped/started. Returned value
+indicates result.
+
+@subsection add_queue  Adding Requests to a Queue
+
+Tevent in fact offers 3 possible ways of inserting a request into a queue.
+There are no vast differences between them, but still there might be situations
+where one of them is more suitable and desired than another. 
+
+@code
+bool tevent_queue_add(struct tevent_queue *queue,
+                      struct tevent_context *ev,
+                      struct tevent_req *req,
+                      tevent_queue_trigger_fn_t trigger,
+                      void *private_data)
+@endcode
+
+This call is the simplest of all three. It offers only boolean verification of
+whether the operation of adding the request into a queue was successful or not.
+No additional deletion of an item from the queue is possible, i.e. it is only
+possible to deallocate the whole tevent request, which would cause triggering
+of destructor handling and also dropping the request from the queue.
+
+<strong>Extended Options</strong>
+
+Both of the following functions have a feature in common - they return tevent
+queue entry structure representing the item in a queue. There is no further
+possible handling with this structure except the use of the structure’s pointer
+for its deallocation (which leads also its removal from the queue). The
+difference lies in the possibility that with the following functions it is
+possible to remove the tevent request from a queue without its deallocation.
+The previous function can only deallocate the tevent request as it was from
+memory, and thereby logically cause its removal from the queue as well. There
+is no other utilization of this structure via API at this stage of tevent
+library. The possibility of easier debugging while developing with tevent could
+be considered to be an advantage of this returned pointer.
+
+@code
+struct tevent_queue_entry *tevent_queue_add_entry(struct tevent_queue *queue,
+                                                  struct tevent_context *ev,
+                                                  struct tevent_req *req,
+                                                  tevent_queue_trigger_fn_t trigger,
+                                                  void *private_data)
+@endcode
+
+The feature that allows for the optimized addition of entries to a queue is
+that a check for an empty queue with no items is first of all carried out. If
+it is found that the queue is empty, then the request for inserting the entry
+into a queue will be omitted and directly triggered.
+
+@code
+struct tevent_queue_entry *tevent_queue_add_optimize_empty(struct tevent_queue *queue,
+                                                            struct tevent_context *ev,
+                                                            struct tevent_req *req,
+                                                            tevent_queue_trigger_fn_t trigger,
+                                                            void *private_data)
+@endcode
+
+When calling any of the functions serving for inserting an item into a queue,
+it is possible to leave out the fourth argument (trigger) and instead of a
+function pass a NULL pointer. This usage sets so-called blocking entries.
+These entries, since they do not have any trigger operation to be activated,
+just sit in their position until they are labeled as a done by another
+function. Their purpose is to block other items in the queue from being
+triggered.
+
+@subsection example_q Example of tevent queue
+
+@code
+#include <stdio.h>
+#include <unistd.h>
+#include <tevent.h>
+
+struct foo_state {
+    int local_var;
+    int x;
+};
+
+struct juststruct {
+    TALLOC_CTX * ctx;
+    struct tevent_context *ev;
+    int y;
+};
+
+int created = 0;
+
+static void timer_handler(struct tevent_context *ev, struct tevent_timer *te,
+                           struct timeval current_time, void *private_data)
+{
+    // time event which after all sets request as done. Following item from
+    // the queue  may be invoked.
+    struct tevent_req *req = private_data;
+    struct foo_state *stateX = tevent_req_data(req, struct foo_state);
+
+    // processing some stuff
+
+    printf("time_handler\n");
+
+    tevent_req_done(req);
+    talloc_free(req);
+
+    printf("Request #%d set as done.\n", stateX->x);
+}
+
+static void trigger(struct tevent_req *req, void *private_data)
+{
+    struct juststruct *priv = tevent_req_callback_data (req, struct juststruct);
+    struct foo_state *in = tevent_req_data(req, struct foo_state);
+    struct timeval schedule;
+    struct tevent_timer *tim;
+    schedule = tevent_timeval_current_ofs(1, 0);
+    printf("Processing request #%d\n", in->x);
+
+    if (in->x % 3 == 0) {   // just example; third request does not contain
+                            // any further operation and will be finished right
+                            // away.
+        tim = NULL;
+    } else {
+        tim = tevent_add_timer(priv->ev, req, schedule, timer_handler, req);
+    }
+
+    if (tim == NULL) {
+            tevent_req_done(req);
+            talloc_free(req);
+            printf("Request #%d set as done.\n", in->x);
+    }
+}
+
+struct tevent_req *foo_send(TALLOC_CTX *mem_ctx, struct tevent_context *ev,
+                            const char *name, int num)
+{
+    struct tevent_req *req;
+    struct foo_state *state;
+    struct foo_state *in;
+    struct tevent_timer *tim;
+
+    printf("foo_send\n");
+    req = tevent_req_create(mem_ctx, &state, struct foo_state);
+    if (req == NULL) { // check for appropriate allocation
+        tevent_req_error(req, 1);
+        return NULL;
+    }
+
+    // exemplary filling of variables
+    state->local_var = 1;
+    state->x = num;
+
+    return req;
+}
+
+static void foo_done(struct tevent_req *req) {
+
+    enum tevent_req_state state;
+    uint64_t err;
+
+    if (tevent_req_is_error(req, &state, &err)) {
+        printf("ERROR WAS SET %d\n", state);
+        return;
+    } else {
+        // processing some stuff
+        printf("Callback is done...\n");
+    }
+}
+
+int main (int argc, char **argv)
+{
+    TALLOC_CTX *mem_ctx;
+    struct tevent_req* req[6];
+    struct tevent_req* tmp;
+    struct tevent_context *ev;
+    struct tevent_queue *fronta = NULL;
+    struct juststruct *data;
+    int ret;
+    int i = 0;
+
+    const char * const names[] = {
+        "first", "second", "third", "fourth", "fifth"
+    };
+
+    printf("INIT\n");
+
+    mem_ctx = talloc_new(NULL); //parent
+    talloc_parent(mem_ctx);
+    ev = tevent_context_init(mem_ctx);
+    if (ev == NULL) {
+        fprintf(stderr, "MEMORY ERROR\n");
+        return EXIT_FAILURE;
+    }
+
+    // setting up queue
+    fronta = tevent_queue_create(mem_ctx, "test_queue");
+    tevent_queue_stop(fronta);
+    tevent_queue_start(fronta);
+    if (tevent_queue_running(fronta)) {
+        printf ("Queue is runnning (length: %d)\n", tevent_queue_length(fronta));
+    } else {
+        printf ("Queue is not runnning\n");
+    }
+
+    data = talloc(ev, struct juststruct);
+    data->ctx = mem_ctx;
+    data->ev = ev;
+
+
+    // create 4 requests
+    for (i = 1; i < 5; i++) {
+        req[i] = foo_send(mem_ctx, ev, names[i], i);
+        tmp = req[i];
+        if (req[i] == NULL) {
+            fprintf(stderr, "Request error! %d \n", ret);
+            break;
+        }
+        tevent_req_set_callback(req[i], foo_done, data);
+        created++;
+    }
+
+    // add item to a queue
+    tevent_queue_add(fronta, ev, req[1], trigger, data);
+    tevent_queue_add(fronta, ev, req[2], trigger, data);
+    tevent_queue_add(fronta, ev, req[3], trigger, data);
+    tevent_queue_add(fronta, ev, req[4], trigger, data);
+
+    printf("Queue length: %d\n", tevent_queue_length(fronta));
+    while(tevent_queue_length(fronta) > 0) {
+        tevent_loop_once(ev);
+        printf("Queue: %d items left\n", tevent_queue_length(fronta));
+    }
+
+    talloc_free(mem_ctx);
+    printf("FINISH\n");
+
+    return EXIT_SUCCESS;
+}
+@endcode
+
+*/
diff --git a/lib/tevent/doc/tevent_request.dox b/lib/tevent/doc/tevent_request.dox
new file mode 100644
index 0000000..e1e45b1
--- /dev/null
+++ b/lib/tevent/doc/tevent_request.dox
@@ -0,0 +1,189 @@
+/**
+@page tevent_request Chapter 4: Tevent request
+@section request Tevent request
+
+A specific feature of the library is the tevent request API that provides for
+asynchronous computation and allows much more interconnected working and
+cooperation among functions and events. When working with tevent request it
+is possible to nest one event under another and handle them bit by bit. This
+enables the creation of sequences of steps, and provides an opportunity to
+prepare for all problems which may unexpectedly happen within the different
+phases. One way or another, subrequests split bigger tasks into smaller ones
+which allow a clearer view of each task as a whole.
+
+@subsection name Naming conventions
+
+There is a naming convention which is not obligatory but it is followed in this
+tutorial:
+
+- Functions triggered before the event happens. These establish a request.
+- \b foo_send(...) - this function is called first and it includes the
+  creation of tevent request - tevent req structure. It does not block
+  anything, it simply creates a request, sets a callback (foo done) and lets
+  the program continue
+- Functions as a result of event.
+- \b foo_done(...) - this function contains code providing for handling itself
+  and based upon its results, the request is set either as a done or, if an
+  error occurs, the request is set as a failure.
+- \b foo_recv(...) - this function contains code which should, if demanded,
+  access the result data and make them further visible. The foo state should
+  be deallocated from memory when the request’s processing is over and
+  therefore all computed data up to this point would be lost.
+
+As was already mentioned, specific naming subsumes not only functions but also
+the data themselves:
+
+- \b foo_state - this is a structure. It contains all the data necessary for
+  the asynchronous task.
+
+@subsection cr_req Creating a New Asynchronous Request
+
+The first step for working asynchronously is the allocation of memory
+requirements. As in previous cases, the talloc context is required, upon which
+the asynchronous request will be tied. The next step is the creation of the
+request itself.
+
+@code
+struct tevent_req* tevent_req_create (TALLOC_CTX *mem_ctx, void **pstate, #type)
+@endcode
+
+The pstate is the pointer to the private data. The necessary amount of memory
+(based on data type) is allocated during this call. Within this same memory
+area all the data from the asynchronous request that need to be preserved for
+some time should be kept.
+
+<b>Dealing with a lack of memory</b>
+
+The verification of the returned pointer against NULL is necessary in order to
+identify a potential lack of memory. There is a special function which helps
+with this check tevent_req_nomem().
+
+It handles verification both of the talloc memory allocation and of the
+associated tevent request, and is therefore a very useful function for avoiding
+unexpected situations. It can easily be used when checking the availability of
+further memory resources that are required for a tevent request. Imagine an
+example where additional memory needs arise although no memory resources are
+currently available.
+
+@code
+bar = talloc(mem_ctx, struct foo);
+if(tevent_req_nomem (bar, req)) {
+  // handling a problem
+}
+@endcode
+
+This code ensures that the variable bar, which contains NULL as a result of the
+unsuccessful satisfaction of its memory requirements, is noticed, and also that
+the tevent request req declares it exceeds memory capacity, which implies the
+impossibility of finishing the request as originally programmed.
+
+
+@subsection fini_req Finishing a Request
+
+Marking each request as finished is an essential principle of the tevent
+library. Without marking the request as completed - either successfully or with
+an error - the tevent loop could not let the appropriate callback be triggered.
+It is important to understand that this would be a significant threat, because
+it is not usually a question of one single function which prints some text on a
+screen, but rather the request is itself probably just a link in a series of
+other requests. Stopping one request would stop the others, memory resources
+would not be freed, file descriptors might remain open, communication via
+socket could be interrupted, and so on. Therefore it is important to think
+about finishing requests, either successfully or not, and also to prepare
+functions for all possible scenarios, so that the the callbacks do not process
+data that are actually invalid or, even worse, in fact non-existent meaning
+that a segmentation fault may arise.
+
+<ul>
+<li>\b Manually - This is the most common type of finishing request. Calling
+this function sets the request as a TEVENT_REQ_DONE. This is the only purpose
+of this function and it should be used when everything went well. Typically it
+is used within the done functions.
+
+@code
+void tevent_req_done (struct tevent_req *req)
+@endcode
+Alternatively, the request can end up being unsuccessful.
+@code
+bool tevent_req_error (struct tevent_req *req, uint64_t error)
+@endcode
+
+The second argument takes the number of an error (declared by the programmer,
+for example in an enumerated variable). The function tevent_req_error() sets
+the status of the request as a TEVENT_REQ_USER_ERROR and also stores the code
+of error within the structure so it can be used, for example for debugging. The
+function returns true, if marking the request as an error was processed with no
+problem - value error passed to this function is not equal to 1.</li>
+
+<li>
+<b>Setting up a timeout for request</b> - A request can be finished virtually,
+or if the process takes too much time, it can be timed out. This is considered
+as an error of the request and it leads to calling callback.  In the
+background, this timeout is set through a time event (described in
+@subpage tevent_events ) which eventually triggers an operation marking the
+request as a TEVENT_REQ_TIMED_OUT (can not be considered as successfully
+finished). In case a time out was already set, this operation will overwrite it
+with a new time value (so the timeout may be lengthened) and if everything is
+set properly, it returns true.
+
+@code
+bool tevent_req_set_endtime(struct tevent_req *req,
+                            struct tevent_context *ev,
+                            struct timeval endtime);
+@endcode
+</li>
+
+
+<li><b>Premature Triggering</b> - Imagine a situation in which some part of a
+nested subrequest ended up with a failure and it is still required to trigger a
+callback. Such as example might result from lack of memory leading to the
+impossibility of allocating enough memory requirements for the event to start
+processing another subrequest, or from a clear intention to skip other
+procedures and trigger the callback regardless of other progress. In these
+cases, the function tevent_req_post() is very handy and offers this option.
+
+@code
+struct tevent_req* tevent_req_post (struct tevent_req *req,
+                                    struct tevent_context *ev);
+@endcode
+
+A request finished in this way does not behave as a time event nor as a file
+descriptor event but as a immediately scheduled event, and therefore it will be
+treated according the description laid down in @subpage tevent_events .
+</li>
+</ul>
+
+
+@section nested Subrequests - Nested Requests
+
+To create more complex and interconnected asynchronous operations, it is
+possible to submerge a request into another and thus create a so-called
+subrequest. Subrequests are not represented by any other special structure but
+they are created from tevent_req_create(). This diagram shows the nesting and
+life time of each request. The table below describes the same in words, and
+shows the triggering of functions during the application run.
+
+<i>Wrapper</i> represents the trigger of the whole cascade of (sub)requests. It
+may be e.g. a time or file descriptor event, or another request that was
+created at a specific time by the function tevent_wakeup_send() which is a
+slightly exceptional method of creating
+
+@code
+struct tevent_req *tevent_wakeup_send(TALLOC_CTX *mem_ctx,
+                                      struct tevent_context *ev,
+                                      struct timeval wakeup_time);
+@endcode
+
+By calling this function, it is possible to create a tevent request which is
+actually the return value of this function. In summary, it sets the time value
+of the tevent request’s creation.  While using this function it is necessary to
+use another function in the subrequest’s callback to check for any problems
+tevent_wakeup_recv() )
+
+@image html tevent_subrequest.png
+
+A comprehensive example of nested subrequests can be found in the file
+echo_server.c. It implements a complete, self-contained echo server with no
+dependencies but libevent and libtalloc.
+
+*/
diff --git a/lib/tevent/doc/tevent_thread.dox b/lib/tevent/doc/tevent_thread.dox
new file mode 100644
index 0000000..875dae8
--- /dev/null
+++ b/lib/tevent/doc/tevent_thread.dox
@@ -0,0 +1,322 @@
+/**
+@page tevent_thread Chapter 6: Tevent with threads
+
+@section threads Tevent with threads
+
+In order to use tevent with threads, you must first understand
+how to use the talloc library in threaded programs. For more
+information about working with talloc, please visit <a
+href="https://talloc.samba.org/">talloc website</a> where tutorial and
+documentation are located.
+
+If a tevent context structure is talloced from a NULL, thread-safe talloc
+context, then it can be safe to use in a threaded program. The function
+<code>talloc_disable_null_tracking()</code> <b>must</b> be called from the initial
+program thread before any talloc calls are made to ensure talloc is thread-safe.
+
+Each thread must create it's own tevent context structure as follows
+<code>tevent_context_init(NULL)</code> and no talloc memory contexts
+can be shared between threads.
+
+Separate threads using tevent in this way can communicate
+by writing data into file descriptors that are being monitored
+by a tevent context on another thread. For example (simplified
+with no error handling):
+
+@code
+Main thread:
+
+main()
+{
+	talloc_disable_null_tracking();
+
+	struct tevent_context *master_ev = tevent_context_init(NULL);
+	void *mem_ctx = talloc_new(master_ev);
+
+	// Create file descriptor to monitor.
+	int pipefds[2];
+
+	pipe(pipefds);
+
+	struct tevent_fd *fde = tevent_add_fd(master_ev,
+				mem_ctx,
+				pipefds[0], // read side of pipe
+				TEVENT_FD_READ,
+				pipe_read_handler, // callback function
+				private_data_pointer);
+
+	// Create sub thread, pass pipefds[1] write side of pipe to it.
+	// The above code not shown here..
+
+	// Process events.
+	tevent_loop_wait(master_ev);
+
+	// Cleanup if loop exits.
+	talloc_free(master_ev);
+}
+
+@endcode
+
+When the subthread writes to pipefds[1], the function
+<code>pipe_read_handler()</code> will be called in the main thread.
+
+@subsection More sophisticated use
+
+A popular way to use an event library within threaded programs
+is to allow a sub-thread to asynchronously schedule a tevent_immediate
+function call from the event loop of another thread. This can be built
+out of the basic functions and isolation mechanisms of tevent,
+but tevent also comes with some utility functions that make
+this easier, so long as you understand the limitations that
+using threads with talloc and tevent impose.
+
+To allow a tevent context to receive an asynchronous tevent_immediate
+function callback from another thread, create a struct tevent_thread_proxy *
+by calling @code
+
+struct tevent_thread_proxy *tevent_thread_proxy_create(
+                struct tevent_context *dest_ev_ctx);
+
+@endcode
+
+This function allocates the internal data structures to
+allow asynchronous callbacks as a talloc child of the
+struct tevent_context *, and returns a struct tevent_thread_proxy *
+that can be passed to another thread.
+
+When you have finished receiving asynchronous callbacks, simply
+talloc_free the struct tevent_thread_proxy *, or talloc_free
+the struct tevent_context *, which will deallocate the resources
+used.
+
+To schedule an asynchronous tevent_immediate function call from one
+thread on the tevent loop of another thread, use
+@code
+
+void tevent_thread_proxy_schedule(struct tevent_thread_proxy *tp,
+                                struct tevent_immediate **pp_im,
+                                tevent_immediate_handler_t handler,
+                                void **pp_private_data);
+
+@endcode
+
+This function causes the function <code>handler()</code>
+to be invoked as a tevent_immediate callback from the event loop
+of the thread that created the struct tevent_thread_proxy *
+(so the owning <code>struct tevent_context *</code> should be
+long-lived and not in the process of being torn down).
+
+The <code>struct tevent_thread_proxy</code> object being
+used here is a child of the event context of the target
+thread. So external synchronization mechanisms must be
+used to ensure that the target object is still in use
+at the time of the <code>tevent_thread_proxy_schedule()</code>
+call. In the example below, the request/response nature
+of the communication ensures this.
+
+The <code>struct tevent_immediate **pp_im</code> passed into this function
+should be a struct tevent_immediate * allocated on a talloc context
+local to this thread, and will be reparented via talloc_move
+to be owned by <code>struct tevent_thread_proxy *tp</code>.
+<code>*pp_im</code> will be set to NULL on successful scheduling
+of the tevent_immediate call.
+
+<code>handler()</code> will be called as a normal tevent_immediate
+callback from the <code>struct tevent_context *</code> of the destination
+event loop that created the <code>struct tevent_thread_proxy *</code>
+
+Returning from this functions does not mean that the <code>handler</code>
+has been invoked, merely that it has been scheduled to be called in the
+destination event loop.
+
+Because the calling thread does not wait for the
+callback to be scheduled and run on the destination
+thread, this is a fire-and-forget call. If you wish
+confirmation of the <code>handler()</code> being
+successfully invoked, you must ensure it replies to the
+caller in some way.
+
+Because of asynchronous nature of this call, the nature
+of the parameter passed to the destination thread has some
+restructions. If you don't need parameters, merely pass
+<code>NULL</code> as the value of
+<code>void **pp_private_data</code>.
+
+If you wish to pass a pointer to data between the threads,
+it <b>MUST</b> be a pointer to a talloced pointer, which is
+not part of a talloc-pool, and it must not have a destructor
+attached. The ownership of the memory pointed to will
+be passed from the calling thread to the tevent library,
+and if the receiving thread does not talloc-reparent
+it to its own contexts, it will be freed once the
+<code>handler</code> is called.
+
+On success, <code>*pp_private</code> will be <code>NULL</code>
+to signify the talloc memory ownership has been moved.
+
+In practice for message passing between threads in
+event loops these restrictions are not very onerous.
+
+The easiest way to to a request-reply pair between
+tevent loops on different threads is to pass the
+parameter block of memory back and forth using
+a reply <code>tevent_thread_proxy_schedule()</code>
+call.
+
+Here is an example (without error checking for
+simplicity):
+
+@code
+------------------------------------------------
+// Master thread.
+
+main()
+{
+	// Make talloc thread-safe.
+
+	talloc_disable_null_tracking();
+
+	// Create the master event context.
+
+	struct tevent_context *master_ev = tevent_context_init(NULL);
+
+	// Create the master thread proxy to allow it to receive
+	// async callbacks from other threads.
+
+	struct tevent_thread_proxy *master_tp =
+			tevent_thread_proxy_create(master_ev);
+
+	// Create sub-threads, passing master_tp in
+	// some way to them.
+	// This code not shown..
+
+	// Process events.
+	// Function master_callback() below
+	// will be invoked on this thread on
+	// master_ev event context.
+
+	tevent_loop_wait(master_ev);
+
+	// Cleanup if loop exits.
+
+	talloc_free(master_ev);
+}
+
+// Data passed between threads.
+struct reply_state {
+	struct tevent_thread_proxy *reply_tp;
+	pthread_t thread_id;
+	bool *p_finished;
+};
+
+// Callback Called in child thread context.
+
+static void thread_callback(struct tevent_context *ev,
+                                struct tevent_immediate *im,
+                                void *private_ptr)
+{
+	// Move the ownership of what private_ptr
+	// points to from the tevent library back to this thread.
+
+	struct reply_state *rsp =
+		talloc_get_type_abort(private_ptr, struct reply_state);
+
+	talloc_steal(ev, rsp);
+
+	*rsp->p_finished = true;
+
+	// im will be talloc_freed on return from this call.
+	// but rsp will not.
+}
+
+// Callback Called in master thread context.
+
+static void master_callback(struct tevent_context *ev,
+                                struct tevent_immediate *im,
+                                void *private_ptr)
+{
+	// Move the ownership of what private_ptr
+	// points to from the tevent library to this thread.
+
+	struct reply_state *rsp =
+		talloc_get_type_abort(private_ptr, struct reply_state);
+
+	talloc_steal(ev, rsp);
+
+	printf("Callback from thread %s\n", thread_id_to_string(rsp->thread_id));
+
+	/* Now reply to the thread ! */
+	tevent_thread_proxy_schedule(rsp->reply_tp,
+				&im,
+				thread_callback,
+				&rsp);
+
+	// Note - rsp and im are now NULL as the tevent library
+	// owns the memory.
+}
+
+// Child thread.
+
+static void *thread_fn(void *private_ptr)
+{
+	struct tevent_thread_proxy *master_tp =
+		talloc_get_type_abort(private_ptr, struct tevent_thread_proxy);
+	bool finished = false;
+	int ret;
+
+	// Create our own event context.
+
+	struct tevent_context *ev = tevent_context_init(NULL);
+
+	// Create the local thread proxy to allow us to receive
+	// async callbacks from other threads.
+
+	struct tevent_thread_proxy *local_tp =
+			tevent_thread_proxy_create(master_ev);
+
+	// Setup the data to send.
+
+	struct reply_state *rsp = talloc(ev, struct reply_state);
+
+	rsp->reply_tp = local_tp;
+	rsp->thread_id = pthread_self();
+	rsp->p_finished = &finished;
+
+	// Create the immediate event to use.
+
+	struct tevent_immediate *im = tevent_create_immediate(ev);
+
+	// Call the master thread.
+
+	tevent_thread_proxy_schedule(master_tp,
+				&im,
+				master_callback,
+				&rsp);
+
+	// Note - rsp and im are now NULL as the tevent library
+	// owns the memory.
+
+	// Wait for the reply.
+
+	while (!finished) {
+		tevent_loop_once(ev);
+	}
+
+	// Cleanup.
+
+	talloc_free(ev);
+	return NULL;
+}
+
+@endcode
+
+Note this doesn't have to be a master-subthread communication.
+Any thread that has access to the <code>struct tevent_thread_proxy *</code>
+pointer of another thread that has called <code>tevent_thread_proxy_create()
+</code> can send an async tevent_immediate request.
+
+But remember the caveat that external synchronization must be used
+to ensure the target <code>struct tevent_thread_proxy *</code> object
+exists at the time of the <code>tevent_thread_proxy_schedule()</code>
+call or unreproducible crashes will result.
+*/
diff --git a/lib/tevent/doc/tevent_tutorial.dox b/lib/tevent/doc/tevent_tutorial.dox
new file mode 100644
index 0000000..207a244
--- /dev/null
+++ b/lib/tevent/doc/tevent_tutorial.dox
@@ -0,0 +1,22 @@
+/**
+@page tevent_tutorial The Tutorial
+
+@section tevent_tutorial_introduction Introduction
+
+Tutorial describing working with tevent library.
+
+@section tevent_tutorial_toc Table of contents
+
+@subpage tevent_context
+
+@subpage tevent_events
+
+@subpage tevent_data
+
+@subpage tevent_request
+
+@subpage tevent_queue
+
+@subpage tevent_thread
+
+*/
diff --git a/lib/tevent/doc/tutorials.dox b/lib/tevent/doc/tutorials.dox
new file mode 100644
index 0000000..e8beed7
--- /dev/null
+++ b/lib/tevent/doc/tutorials.dox
@@ -0,0 +1,43 @@
+/**
+ * @page tevent_queue_tutorial The tevent_queue tutorial
+ *
+ * @section Introduction
+ *
+ * A tevent_queue is used to queue up async requests that must be
+ * serialized. For example writing buffers into a socket must be
+ * serialized. Writing a large lump of data into a socket can require
+ * multiple write(2) or send(2) system calls. If more than one async
+ * request is outstanding to write large buffers into a socket, every
+ * request must individually be completed before the next one begins,
+ * even if multiple syscalls are required.
+ *
+ * To do this, every socket gets assigned a tevent_queue struct.
+ *
+ * Creating a serialized async request follows the usual convention to
+ * return a tevent_req structure with an embedded state structure. To
+ * serialize the work the requests is about to so, instead of directly
+ * starting or doing that work, tevent_queue_add must be called. When it
+ * is time for the serialized async request to do its work, the trigger
+ * callback function tevent_queue_add was given is called. In the example
+ * of writing to a socket, the trigger is called when the write request
+ * can begin accessing the socket.
+ *
+ * How does this engine work behind the scenes? When the queue is empty,
+ * tevent_queue_add schedules an immediate call to the trigger
+ * callback. The trigger callback starts its work, likely by starting
+ * other async subrequests. While these async subrequests are working,
+ * more requests can accumulate in the queue by tevent_queue_add. While
+ * there is no function to explicitly trigger the next waiter in line, it
+ * still works: When the active request in the queue is done, it will be
+ * destroyed by talloc_free. Talloc_free of an serialized async request
+ * that had been added to a queue will trigger the next request in the
+ * queue via a talloc destructor attached to a child of the serialized
+ * request. This way the queue will be kept busy when an async request
+ * finishes.
+ *
+ * @section Example
+ *
+ * @code
+ *      Metze: Please add a code example here.
+ * @endcode
+ */
diff --git a/lib/tevent/doxy.config b/lib/tevent/doxy.config
new file mode 100644
index 0000000..76d8b4c
--- /dev/null
+++ b/lib/tevent/doxy.config
@@ -0,0 +1,1908 @@
+# Doxyfile 1.8.4
+
+# This file describes the settings to be used by the documentation system
+# doxygen (www.doxygen.org) for a project.
+#
+# All text after a double hash (##) is considered a comment and is placed
+# in front of the TAG it is preceding .
+# All text after a hash (#) is considered a comment and will be ignored.
+# The format is:
+#       TAG = value [value, ...]
+# For lists items can also be appended using:
+#       TAG += value [value, ...]
+# Values that contain spaces should be placed between quotes (" ").
+
+#---------------------------------------------------------------------------
+# Project related configuration options
+#---------------------------------------------------------------------------
+
+# This tag specifies the encoding used for all characters in the config file
+# that follow. The default is UTF-8 which is also the encoding used for all
+# text before the first occurrence of this tag. Doxygen uses libiconv (or the
+# iconv built into libc) for the transcoding. See
+# http://www.gnu.org/software/libiconv for the list of possible encodings.
+
+DOXYFILE_ENCODING      = UTF-8
+
+# The PROJECT_NAME tag is a single word (or sequence of words) that should
+# identify the project. Note that if you do not use Doxywizard you need
+# to put quotes around the project name if it contains spaces.
+
+PROJECT_NAME           = tevent
+
+# The PROJECT_NUMBER tag can be used to enter a project or revision number.
+# This could be handy for archiving the generated documentation or
+# if some version control system is used.
+
+PROJECT_NUMBER         = 0.9.8
+
+# Using the PROJECT_BRIEF tag one can provide an optional one line description
+# for a project that appears at the top of each page and should give viewer
+# a quick idea about the purpose of the project. Keep the description short.
+
+PROJECT_BRIEF          =
+
+# With the PROJECT_LOGO tag one can specify an logo or icon that is
+# included in the documentation. The maximum height of the logo should not
+# exceed 55 pixels and the maximum width should not exceed 200 pixels.
+# Doxygen will copy the logo to the output directory.
+
+PROJECT_LOGO           =
+
+# The OUTPUT_DIRECTORY tag is used to specify the (relative or absolute)
+# base path where the generated documentation will be put.
+# If a relative path is entered, it will be relative to the location
+# where doxygen was started. If left blank the current directory will be used.
+
+OUTPUT_DIRECTORY       = doc
+
+# If the CREATE_SUBDIRS tag is set to YES, then doxygen will create
+# 4096 sub-directories (in 2 levels) under the output directory of each output
+# format and will distribute the generated files over these directories.
+# Enabling this option can be useful when feeding doxygen a huge amount of
+# source files, where putting all generated files in the same directory would
+# otherwise cause performance problems for the file system.
+
+CREATE_SUBDIRS         = NO
+
+# The OUTPUT_LANGUAGE tag is used to specify the language in which all
+# documentation generated by doxygen is written. Doxygen will use this
+# information to generate all constant output in the proper language.
+# The default language is English, other supported languages are:
+# Afrikaans, Arabic, Brazilian, Catalan, Chinese, Chinese-Traditional,
+# Croatian, Czech, Danish, Dutch, Esperanto, Farsi, Finnish, French, German,
+# Greek, Hungarian, Italian, Japanese, Japanese-en (Japanese with English
+# messages), Korean, Korean-en, Latvian, Lithuanian, Norwegian, Macedonian,
+# Persian, Polish, Portuguese, Romanian, Russian, Serbian, Serbian-Cyrillic,
+# Slovak, Slovene, Spanish, Swedish, Ukrainian, and Vietnamese.
+
+OUTPUT_LANGUAGE        = English
+
+# If the BRIEF_MEMBER_DESC tag is set to YES (the default) Doxygen will
+# include brief member descriptions after the members that are listed in
+# the file and class documentation (similar to JavaDoc).
+# Set to NO to disable this.
+
+BRIEF_MEMBER_DESC      = YES
+
+# If the REPEAT_BRIEF tag is set to YES (the default) Doxygen will prepend
+# the brief description of a member or function before the detailed description.
+# Note: if both HIDE_UNDOC_MEMBERS and BRIEF_MEMBER_DESC are set to NO, the
+# brief descriptions will be completely suppressed.
+
+REPEAT_BRIEF           = YES
+
+# This tag implements a quasi-intelligent brief description abbreviator
+# that is used to form the text in various listings. Each string
+# in this list, if found as the leading text of the brief description, will be
+# stripped from the text and the result after processing the whole list, is
+# used as the annotated text. Otherwise, the brief description is used as-is.
+# If left blank, the following values are used ("$name" is automatically
+# replaced with the name of the entity): "The $name class" "The $name widget"
+# "The $name file" "is" "provides" "specifies" "contains"
+# "represents" "a" "an" "the"
+
+ABBREVIATE_BRIEF       = "The $name class" \
+                         "The $name widget" \
+                         "The $name file" \
+                         is \
+                         provides \
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+                         contains \
+                         represents \
+                         a \
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+                         the
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+# If the ALWAYS_DETAILED_SEC and REPEAT_BRIEF tags are both set to YES then
+# Doxygen will generate a detailed section even if there is only a brief
+# description.
+
+ALWAYS_DETAILED_SEC    = NO
+
+# If the INLINE_INHERITED_MEMB tag is set to YES, doxygen will show all
+# inherited members of a class in the documentation of that class as if those
+# members were ordinary class members. Constructors, destructors and assignment
+# operators of the base classes will not be shown.
+
+INLINE_INHERITED_MEMB  = NO
+
+# If the FULL_PATH_NAMES tag is set to YES then Doxygen will prepend the full
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+# to NO the shortest path that makes the file name unique will be used.
+
+FULL_PATH_NAMES        = YES
+
+# If the FULL_PATH_NAMES tag is set to YES then the STRIP_FROM_PATH tag
+# can be used to strip a user-defined part of the path. Stripping is
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+# the path. The tag can be used to show relative paths in the file list.
+# If left blank the directory from which doxygen is run is used as the
+# path to strip. Note that you specify absolute paths here, but also
+# relative paths, which will be relative from the directory where doxygen is
+# started.
+
+STRIP_FROM_PATH        =
+
+# The STRIP_FROM_INC_PATH tag can be used to strip a user-defined part of
+# the path mentioned in the documentation of a class, which tells
+# the reader which header file to include in order to use a class.
+# If left blank only the name of the header file containing the class
+# definition is used. Otherwise one should specify the include paths that
+# are normally passed to the compiler using the -I flag.
+
+STRIP_FROM_INC_PATH    =
+
+# If the SHORT_NAMES tag is set to YES, doxygen will generate much shorter
+# (but less readable) file names. This can be useful if your file system
+# doesn't support long names like on DOS, Mac, or CD-ROM.
+
+SHORT_NAMES            = NO
+
+# If the JAVADOC_AUTOBRIEF tag is set to YES then Doxygen
+# will interpret the first line (until the first dot) of a JavaDoc-style
+# comment as the brief description. If set to NO, the JavaDoc
+# comments will behave just like regular Qt-style comments
+# (thus requiring an explicit @brief command for a brief description.)
+
+JAVADOC_AUTOBRIEF      = YES
+
+# If the QT_AUTOBRIEF tag is set to YES then Doxygen will
+# interpret the first line (until the first dot) of a Qt-style
+# comment as the brief description. If set to NO, the comments
+# will behave just like regular Qt-style comments (thus requiring
+# an explicit \brief command for a brief description.)
+
+QT_AUTOBRIEF           = NO
+
+# The MULTILINE_CPP_IS_BRIEF tag can be set to YES to make Doxygen
+# treat a multi-line C++ special comment block (i.e. a block of //! or ///
+# comments) as a brief description. This used to be the default behaviour.
+# The new default is to treat a multi-line C++ comment block as a detailed
+# description. Set this tag to YES if you prefer the old behaviour instead.
+
+MULTILINE_CPP_IS_BRIEF = NO
+
+# If the INHERIT_DOCS tag is set to YES (the default) then an undocumented
+# member inherits the documentation from any documented member that it
+# re-implements.
+
+INHERIT_DOCS           = YES
+
+# If the SEPARATE_MEMBER_PAGES tag is set to YES, then doxygen will produce
+# a new page for each member. If set to NO, the documentation of a member will
+# be part of the file/class/namespace that contains it.
+
+SEPARATE_MEMBER_PAGES  = NO
+
+# The TAB_SIZE tag can be used to set the number of spaces in a tab.
+# Doxygen uses this value to replace tabs by spaces in code fragments.
+
+TAB_SIZE               = 8
+
+# This tag can be used to specify a number of aliases that acts
+# as commands in the documentation. An alias has the form "name=value".
+# For example adding "sideeffect=\par Side Effects:\n" will allow you to
+# put the command \sideeffect (or @sideeffect) in the documentation, which
+# will result in a user-defined paragraph with heading "Side Effects:".
+# You can put \n's in the value part of an alias to insert newlines.
+
+ALIASES                =
+
+# This tag can be used to specify a number of word-keyword mappings (TCL only).
+# A mapping has the form "name=value". For example adding
+# "class=itcl::class" will allow you to use the command class in the
+# itcl::class meaning.
+
+TCL_SUBST              =
+
+# Set the OPTIMIZE_OUTPUT_FOR_C tag to YES if your project consists of C
+# sources only. Doxygen will then generate output that is more tailored for C.
+# For instance, some of the names that are used will be different. The list
+# of all members will be omitted, etc.
+
+OPTIMIZE_OUTPUT_FOR_C  = YES
+
+# Set the OPTIMIZE_OUTPUT_JAVA tag to YES if your project consists of Java
+# sources only. Doxygen will then generate output that is more tailored for
+# Java. For instance, namespaces will be presented as packages, qualified
+# scopes will look different, etc.
+
+OPTIMIZE_OUTPUT_JAVA   = NO
+
+# Set the OPTIMIZE_FOR_FORTRAN tag to YES if your project consists of Fortran
+# sources only. Doxygen will then generate output that is more tailored for
+# Fortran.
+
+OPTIMIZE_FOR_FORTRAN   = NO
+
+# Set the OPTIMIZE_OUTPUT_VHDL tag to YES if your project consists of VHDL
+# sources. Doxygen will then generate output that is tailored for
+# VHDL.
+
+OPTIMIZE_OUTPUT_VHDL   = NO
+
+# Doxygen selects the parser to use depending on the extension of the files it
+# parses. With this tag you can assign which parser to use for a given
+# extension. Doxygen has a built-in mapping, but you can override or extend it
+# using this tag. The format is ext=language, where ext is a file extension,
+# and language is one of the parsers supported by doxygen: IDL, Java,
+# Javascript, CSharp, C, C++, D, PHP, Objective-C, Python, Fortran, VHDL, C,
+# C++. For instance to make doxygen treat .inc files as Fortran files (default
+# is PHP), and .f files as C (default is Fortran), use: inc=Fortran f=C. Note
+# that for custom extensions you also need to set FILE_PATTERNS otherwise the
+# files are not read by doxygen.
+
+EXTENSION_MAPPING      =
+
+# If MARKDOWN_SUPPORT is enabled (the default) then doxygen pre-processes all
+# comments according to the Markdown format, which allows for more readable
+# documentation. See http://daringfireball.net/projects/markdown/ for details.
+# The output of markdown processing is further processed by doxygen, so you
+# can mix doxygen, HTML, and XML commands with Markdown formatting.
+# Disable only in case of backward compatibilities issues.
+
+MARKDOWN_SUPPORT       = YES
+
+# When enabled doxygen tries to link words that correspond to documented
+# classes, or namespaces to their corresponding documentation. Such a link can
+# be prevented in individual cases by by putting a % sign in front of the word
+# or globally by setting AUTOLINK_SUPPORT to NO.
+
+AUTOLINK_SUPPORT       = YES
+
+# If you use STL classes (i.e. std::string, std::vector, etc.) but do not want
+# to include (a tag file for) the STL sources as input, then you should
+# set this tag to YES in order to let doxygen match functions declarations and
+# definitions whose arguments contain STL classes (e.g. func(std::string); v.s.
+# func(std::string) {}). This also makes the inheritance and collaboration
+# diagrams that involve STL classes more complete and accurate.
+
+BUILTIN_STL_SUPPORT    = NO
+
+# If you use Microsoft's C++/CLI language, you should set this option to YES to
+# enable parsing support.
+
+CPP_CLI_SUPPORT        = NO
+
+# Set the SIP_SUPPORT tag to YES if your project consists of sip sources only.
+# Doxygen will parse them like normal C++ but will assume all classes use public
+# instead of private inheritance when no explicit protection keyword is present.
+
+SIP_SUPPORT            = NO
+
+# For Microsoft's IDL there are propget and propput attributes to indicate
+# getter and setter methods for a property. Setting this option to YES (the
+# default) will make doxygen replace the get and set methods by a property in
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+# setting a simple type. If this is not the case, or you want to show the
+# methods anyway, you should set this option to NO.
+
+IDL_PROPERTY_SUPPORT   = YES
+
+# If member grouping is used in the documentation and the DISTRIBUTE_GROUP_DOC
+# tag is set to YES, then doxygen will reuse the documentation of the first
+# member in the group (if any) for the other members of the group. By default
+# all members of a group must be documented explicitly.
+
+DISTRIBUTE_GROUP_DOC   = NO
+
+# Set the SUBGROUPING tag to YES (the default) to allow class member groups of
+# the same type (for instance a group of public functions) to be put as a
+# subgroup of that type (e.g. under the Public Functions section). Set it to
+# NO to prevent subgrouping. Alternatively, this can be done per class using
+# the \nosubgrouping command.
+
+SUBGROUPING            = YES
+
+# When the INLINE_GROUPED_CLASSES tag is set to YES, classes, structs and
+# unions are shown inside the group in which they are included (e.g. using
+# @ingroup) instead of on a separate page (for HTML and Man pages) or
+# section (for LaTeX and RTF).
+
+INLINE_GROUPED_CLASSES = NO
+
+# When the INLINE_SIMPLE_STRUCTS tag is set to YES, structs, classes, and
+# unions with only public data fields or simple typedef fields will be shown
+# inline in the documentation of the scope in which they are defined (i.e. file,
+# namespace, or group documentation), provided this scope is documented. If set
+# to NO (the default), structs, classes, and unions are shown on a separate
+# page (for HTML and Man pages) or section (for LaTeX and RTF).
+
+INLINE_SIMPLE_STRUCTS  = NO
+
+# When TYPEDEF_HIDES_STRUCT is enabled, a typedef of a struct, union, or enum
+# is documented as struct, union, or enum with the name of the typedef. So
+# typedef struct TypeS {} TypeT, will appear in the documentation as a struct
+# with name TypeT. When disabled the typedef will appear as a member of a file,
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+# be useful for C code in case the coding convention dictates that all compound
+# types are typedef'ed and only the typedef is referenced, never the tag name.
+
+TYPEDEF_HIDES_STRUCT   = NO
+
+# The size of the symbol lookup cache can be set using LOOKUP_CACHE_SIZE. This
+# cache is used to resolve symbols given their name and scope. Since this can
+# be an expensive process and often the same symbol appear multiple times in
+# the code, doxygen keeps a cache of pre-resolved symbols. If the cache is too
+# small doxygen will become slower. If the cache is too large, memory is wasted.
+# The cache size is given by this formula: 2^(16+LOOKUP_CACHE_SIZE). The valid
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+# symbols.
+
+LOOKUP_CACHE_SIZE      = 0
+
+#---------------------------------------------------------------------------
+# Build related configuration options
+#---------------------------------------------------------------------------
+
+# If the EXTRACT_ALL tag is set to YES doxygen will assume all entities in
+# documentation are documented, even if no documentation was available.
+# Private class members and static file members will be hidden unless
+# the EXTRACT_PRIVATE respectively EXTRACT_STATIC tags are set to YES
+
+EXTRACT_ALL            = NO
+
+# If the EXTRACT_PRIVATE tag is set to YES all private members of a class
+# will be included in the documentation.
+
+EXTRACT_PRIVATE        = NO
+
+# If the EXTRACT_PACKAGE tag is set to YES all members with package or internal
+# scope will be included in the documentation.
+
+EXTRACT_PACKAGE        = NO
+
+# If the EXTRACT_STATIC tag is set to YES all static members of a file
+# will be included in the documentation.
+
+EXTRACT_STATIC         = NO
+
+# If the EXTRACT_LOCAL_CLASSES tag is set to YES classes (and structs)
+# defined locally in source files will be included in the documentation.
+# If set to NO only classes defined in header files are included.
+
+EXTRACT_LOCAL_CLASSES  = NO
+
+# This flag is only useful for Objective-C code. When set to YES local
+# methods, which are defined in the implementation section but not in
+# the interface are included in the documentation.
+# If set to NO (the default) only methods in the interface are included.
+
+EXTRACT_LOCAL_METHODS  = NO
+
+# If this flag is set to YES, the members of anonymous namespaces will be
+# extracted and appear in the documentation as a namespace called
+# 'anonymous_namespace{file}', where file will be replaced with the base
+# name of the file that contains the anonymous namespace. By default
+# anonymous namespaces are hidden.
+
+EXTRACT_ANON_NSPACES   = NO
+
+# If the HIDE_UNDOC_MEMBERS tag is set to YES, Doxygen will hide all
+# undocumented members of documented classes, files or namespaces.
+# If set to NO (the default) these members will be included in the
+# various overviews, but no documentation section is generated.
+# This option has no effect if EXTRACT_ALL is enabled.
+
+HIDE_UNDOC_MEMBERS     = YES
+
+# If the HIDE_UNDOC_CLASSES tag is set to YES, Doxygen will hide all
+# undocumented classes that are normally visible in the class hierarchy.
+# If set to NO (the default) these classes will be included in the various
+# overviews. This option has no effect if EXTRACT_ALL is enabled.
+
+HIDE_UNDOC_CLASSES     = YES
+
+# If the HIDE_FRIEND_COMPOUNDS tag is set to YES, Doxygen will hide all
+# friend (class|struct|union) declarations.
+# If set to NO (the default) these declarations will be included in the
+# documentation.
+
+HIDE_FRIEND_COMPOUNDS  = NO
+
+# If the HIDE_IN_BODY_DOCS tag is set to YES, Doxygen will hide any
+# documentation blocks found inside the body of a function.
+# If set to NO (the default) these blocks will be appended to the
+# function's detailed documentation block.
+
+HIDE_IN_BODY_DOCS      = NO
+
+# The INTERNAL_DOCS tag determines if documentation
+# that is typed after a \internal command is included. If the tag is set
+# to NO (the default) then the documentation will be excluded.
+# Set it to YES to include the internal documentation.
+
+INTERNAL_DOCS          = NO
+
+# If the CASE_SENSE_NAMES tag is set to NO then Doxygen will only generate
+# file names in lower-case letters. If set to YES upper-case letters are also
+# allowed. This is useful if you have classes or files whose names only differ
+# in case and if your file system supports case sensitive file names. Windows
+# and Mac users are advised to set this option to NO.
+
+CASE_SENSE_NAMES       = YES
+
+# If the HIDE_SCOPE_NAMES tag is set to NO (the default) then Doxygen
+# will show members with their full class and namespace scopes in the
+# documentation. If set to YES the scope will be hidden.
+
+HIDE_SCOPE_NAMES       = NO
+
+# If the SHOW_INCLUDE_FILES tag is set to YES (the default) then Doxygen
+# will put a list of the files that are included by a file in the documentation
+# of that file.
+
+SHOW_INCLUDE_FILES     = YES
+
+# If the FORCE_LOCAL_INCLUDES tag is set to YES then Doxygen
+# will list include files with double quotes in the documentation
+# rather than with sharp brackets.
+
+FORCE_LOCAL_INCLUDES   = NO
+
+# If the INLINE_INFO tag is set to YES (the default) then a tag [inline]
+# is inserted in the documentation for inline members.
+
+INLINE_INFO            = YES
+
+# If the SORT_MEMBER_DOCS tag is set to YES (the default) then doxygen
+# will sort the (detailed) documentation of file and class members
+# alphabetically by member name. If set to NO the members will appear in
+# declaration order.
+
+SORT_MEMBER_DOCS       = YES
+
+# If the SORT_BRIEF_DOCS tag is set to YES then doxygen will sort the
+# brief documentation of file, namespace and class members alphabetically
+# by member name. If set to NO (the default) the members will appear in
+# declaration order.
+
+SORT_BRIEF_DOCS        = NO
+
+# If the SORT_MEMBERS_CTORS_1ST tag is set to YES then doxygen
+# will sort the (brief and detailed) documentation of class members so that
+# constructors and destructors are listed first. If set to NO (the default)
+# the constructors will appear in the respective orders defined by
+# SORT_MEMBER_DOCS and SORT_BRIEF_DOCS.
+# This tag will be ignored for brief docs if SORT_BRIEF_DOCS is set to NO
+# and ignored for detailed docs if SORT_MEMBER_DOCS is set to NO.
+
+SORT_MEMBERS_CTORS_1ST = NO
+
+# If the SORT_GROUP_NAMES tag is set to YES then doxygen will sort the
+# hierarchy of group names into alphabetical order. If set to NO (the default)
+# the group names will appear in their defined order.
+
+SORT_GROUP_NAMES       = NO
+
+# If the SORT_BY_SCOPE_NAME tag is set to YES, the class list will be
+# sorted by fully-qualified names, including namespaces. If set to
+# NO (the default), the class list will be sorted only by class name,
+# not including the namespace part.
+# Note: This option is not very useful if HIDE_SCOPE_NAMES is set to YES.
+# Note: This option applies only to the class list, not to the
+# alphabetical list.
+
+SORT_BY_SCOPE_NAME     = NO
+
+# If the STRICT_PROTO_MATCHING option is enabled and doxygen fails to
+# do proper type resolution of all parameters of a function it will reject a
+# match between the prototype and the implementation of a member function even
+# if there is only one candidate or it is obvious which candidate to choose
+# by doing a simple string match. By disabling STRICT_PROTO_MATCHING doxygen
+# will still accept a match between prototype and implementation in such cases.
+
+STRICT_PROTO_MATCHING  = NO
+
+# The GENERATE_TODOLIST tag can be used to enable (YES) or
+# disable (NO) the todo list. This list is created by putting \todo
+# commands in the documentation.
+
+GENERATE_TODOLIST      = YES
+
+# The GENERATE_TESTLIST tag can be used to enable (YES) or
+# disable (NO) the test list. This list is created by putting \test
+# commands in the documentation.
+
+GENERATE_TESTLIST      = YES
+
+# The GENERATE_BUGLIST tag can be used to enable (YES) or
+# disable (NO) the bug list. This list is created by putting \bug
+# commands in the documentation.
+
+GENERATE_BUGLIST       = YES
+
+# The GENERATE_DEPRECATEDLIST tag can be used to enable (YES) or
+# disable (NO) the deprecated list. This list is created by putting
+# \deprecated commands in the documentation.
+
+GENERATE_DEPRECATEDLIST= YES
+
+# The ENABLED_SECTIONS tag can be used to enable conditional
+# documentation sections, marked by \if section-label ... \endif
+# and \cond section-label ... \endcond blocks.
+
+ENABLED_SECTIONS       =
+
+# The MAX_INITIALIZER_LINES tag determines the maximum number of lines
+# the initial value of a variable or macro consists of for it to appear in
+# the documentation. If the initializer consists of more lines than specified
+# here it will be hidden. Use a value of 0 to hide initializers completely.
+# The appearance of the initializer of individual variables and macros in the
+# documentation can be controlled using \showinitializer or \hideinitializer
+# command in the documentation regardless of this setting.
+
+MAX_INITIALIZER_LINES  = 30
+
+# Set the SHOW_USED_FILES tag to NO to disable the list of files generated
+# at the bottom of the documentation of classes and structs. If set to YES the
+# list will mention the files that were used to generate the documentation.
+
+SHOW_USED_FILES        = YES
+
+# Set the SHOW_FILES tag to NO to disable the generation of the Files page.
+# This will remove the Files entry from the Quick Index and from the
+# Folder Tree View (if specified). The default is YES.
+
+SHOW_FILES             = YES
+
+# Set the SHOW_NAMESPACES tag to NO to disable the generation of the
+# Namespaces page.
+# This will remove the Namespaces entry from the Quick Index
+# and from the Folder Tree View (if specified). The default is YES.
+
+SHOW_NAMESPACES        = YES
+
+# The FILE_VERSION_FILTER tag can be used to specify a program or script that
+# doxygen should invoke to get the current version for each file (typically from
+# the version control system). Doxygen will invoke the program by executing (via
+# popen()) the command <command> <input-file>, where <command> is the value of
+# the FILE_VERSION_FILTER tag, and <input-file> is the name of an input file
+# provided by doxygen. Whatever the program writes to standard output
+# is used as the file version. See the manual for examples.
+
+FILE_VERSION_FILTER    =
+
+# The LAYOUT_FILE tag can be used to specify a layout file which will be parsed
+# by doxygen. The layout file controls the global structure of the generated
+# output files in an output format independent way. To create the layout file
+# that represents doxygen's defaults, run doxygen with the -l option.
+# You can optionally specify a file name after the option, if omitted
+# DoxygenLayout.xml will be used as the name of the layout file.
+
+LAYOUT_FILE            =
+
+# The CITE_BIB_FILES tag can be used to specify one or more bib files
+# containing the references data. This must be a list of .bib files. The
+# .bib extension is automatically appended if omitted. Using this command
+# requires the bibtex tool to be installed. See also
+# http://en.wikipedia.org/wiki/BibTeX for more info. For LaTeX the style
+# of the bibliography can be controlled using LATEX_BIB_STYLE. To use this
+# feature you need bibtex and perl available in the search path. Do not use
+# file names with spaces, bibtex cannot handle them.
+
+CITE_BIB_FILES         =
+
+#---------------------------------------------------------------------------
+# configuration options related to warning and progress messages
+#---------------------------------------------------------------------------
+
+# The QUIET tag can be used to turn on/off the messages that are generated
+# by doxygen. Possible values are YES and NO. If left blank NO is used.
+
+QUIET                  = NO
+
+# The WARNINGS tag can be used to turn on/off the warning messages that are
+# generated by doxygen. Possible values are YES and NO. If left blank
+# NO is used.
+
+WARNINGS               = YES
+
+# If WARN_IF_UNDOCUMENTED is set to YES, then doxygen will generate warnings
+# for undocumented members. If EXTRACT_ALL is set to YES then this flag will
+# automatically be disabled.
+
+WARN_IF_UNDOCUMENTED   = YES
+
+# If WARN_IF_DOC_ERROR is set to YES, doxygen will generate warnings for
+# potential errors in the documentation, such as not documenting some
+# parameters in a documented function, or documenting parameters that
+# don't exist or using markup commands wrongly.
+
+WARN_IF_DOC_ERROR      = YES
+
+# The WARN_NO_PARAMDOC option can be enabled to get warnings for
+# functions that are documented, but have no documentation for their parameters
+# or return value. If set to NO (the default) doxygen will only warn about
+# wrong or incomplete parameter documentation, but not about the absence of
+# documentation.
+
+WARN_NO_PARAMDOC       = NO
+
+# The WARN_FORMAT tag determines the format of the warning messages that
+# doxygen can produce. The string should contain the $file, $line, and $text
+# tags, which will be replaced by the file and line number from which the
+# warning originated and the warning text. Optionally the format may contain
+# $version, which will be replaced by the version of the file (if it could
+# be obtained via FILE_VERSION_FILTER)
+
+WARN_FORMAT            = "$file:$line: $text"
+
+# The WARN_LOGFILE tag can be used to specify a file to which warning
+# and error messages should be written. If left blank the output is written
+# to stderr.
+
+WARN_LOGFILE           =
+
+#---------------------------------------------------------------------------
+# configuration options related to the input files
+#---------------------------------------------------------------------------
+
+# The INPUT tag can be used to specify the files and/or directories that contain
+# documented source files. You may enter file names like "myfile.cpp" or
+# directories like "/usr/src/myproject". Separate the files or directories
+# with spaces.
+
+INPUT                  = . \
+                         doc
+
+# This tag can be used to specify the character encoding of the source files
+# that doxygen parses. Internally doxygen uses the UTF-8 encoding, which is
+# also the default input encoding. Doxygen uses libiconv (or the iconv built
+# into libc) for the transcoding. See http://www.gnu.org/software/libiconv for
+# the list of possible encodings.
+
+INPUT_ENCODING         = UTF-8
+
+# If the value of the INPUT tag contains directories, you can use the
+# FILE_PATTERNS tag to specify one or more wildcard pattern (like *.cpp
+# and *.h) to filter out the source-files in the directories. If left
+# blank the following patterns are tested:
+# *.c *.cc *.cxx *.cpp *.c++ *.d *.java *.ii *.ixx *.ipp *.i++ *.inl *.h *.hh
+# *.hxx *.hpp *.h++ *.idl *.odl *.cs *.php *.php3 *.inc *.m *.mm *.dox *.py
+# *.f90 *.f *.for *.vhd *.vhdl
+
+FILE_PATTERNS          = *.cpp \
+                         *.cc \
+                         *.c \
+                         *.h \
+                         *.hh \
+                         *.hpp \
+                         *.dox
+
+# The RECURSIVE tag can be used to turn specify whether or not subdirectories
+# should be searched for input files as well. Possible values are YES and NO.
+# If left blank NO is used.
+
+RECURSIVE              = NO
+
+# The EXCLUDE tag can be used to specify files and/or directories that should be
+# excluded from the INPUT source files. This way you can easily exclude a
+# subdirectory from a directory tree whose root is specified with the INPUT tag.
+# Note that relative paths are relative to the directory from which doxygen is
+# run.
+
+EXCLUDE                =
+
+# The EXCLUDE_SYMLINKS tag can be used to select whether or not files or
+# directories that are symbolic links (a Unix file system feature) are excluded
+# from the input.
+
+EXCLUDE_SYMLINKS       = NO
+
+# If the value of the INPUT tag contains directories, you can use the
+# EXCLUDE_PATTERNS tag to specify one or more wildcard patterns to exclude
+# certain files from those directories. Note that the wildcards are matched
+# against the file with absolute path, so to exclude all test directories
+# for example use the pattern */test/*
+
+EXCLUDE_PATTERNS       = */.git/*
+
+# The EXCLUDE_SYMBOLS tag can be used to specify one or more symbol names
+# (namespaces, classes, functions, etc.) that should be excluded from the
+# output. The symbol name can be a fully qualified name, a word, or if the
+# wildcard * is used, a substring. Examples: ANamespace, AClass,
+# AClass::ANamespace, ANamespace::*Test
+
+EXCLUDE_SYMBOLS        =
+
+# The EXAMPLE_PATH tag can be used to specify one or more files or
+# directories that contain example code fragments that are included (see
+# the \include command).
+
+EXAMPLE_PATH           =
+
+# If the value of the EXAMPLE_PATH tag contains directories, you can use the
+# EXAMPLE_PATTERNS tag to specify one or more wildcard pattern (like *.cpp
+# and *.h) to filter out the source-files in the directories. If left
+# blank all files are included.
+
+EXAMPLE_PATTERNS       =
+
+# If the EXAMPLE_RECURSIVE tag is set to YES then subdirectories will be
+# searched for input files to be used with the \include or \dontinclude
+# commands irrespective of the value of the RECURSIVE tag.
+# Possible values are YES and NO. If left blank NO is used.
+
+EXAMPLE_RECURSIVE      = NO
+
+# The IMAGE_PATH tag can be used to specify one or more files or
+# directories that contain image that are included in the documentation (see
+# the \image command).
+
+IMAGE_PATH             = doc/img
+
+# The INPUT_FILTER tag can be used to specify a program that doxygen should
+# invoke to filter for each input file. Doxygen will invoke the filter program
+# by executing (via popen()) the command <filter> <input-file>, where <filter>
+# is the value of the INPUT_FILTER tag, and <input-file> is the name of an
+# input file. Doxygen will then use the output that the filter program writes
+# to standard output.
+# If FILTER_PATTERNS is specified, this tag will be ignored.
+# Note that the filter must not add or remove lines; it is applied before the
+# code is scanned, but not when the output code is generated. If lines are added
+# or removed, the anchors will not be placed correctly.
+
+INPUT_FILTER           =
+
+# The FILTER_PATTERNS tag can be used to specify filters on a per file pattern
+# basis.
+# Doxygen will compare the file name with each pattern and apply the
+# filter if there is a match.
+# The filters are a list of the form:
+# pattern=filter (like *.cpp=my_cpp_filter). See INPUT_FILTER for further
+# info on how filters are used. If FILTER_PATTERNS is empty or if
+# non of the patterns match the file name, INPUT_FILTER is applied.
+
+FILTER_PATTERNS        =
+
+# If the FILTER_SOURCE_FILES tag is set to YES, the input filter (if set using
+# INPUT_FILTER) will be used to filter the input files when producing source
+# files to browse (i.e. when SOURCE_BROWSER is set to YES).
+
+FILTER_SOURCE_FILES    = NO
+
+# The FILTER_SOURCE_PATTERNS tag can be used to specify source filters per file
+# pattern. A pattern will override the setting for FILTER_PATTERN (if any)
+# and it is also possible to disable source filtering for a specific pattern
+# using *.ext= (so without naming a filter). This option only has effect when
+# FILTER_SOURCE_FILES is enabled.
+
+FILTER_SOURCE_PATTERNS =
+
+# If the USE_MD_FILE_AS_MAINPAGE tag refers to the name of a markdown file that
+# is part of the input, its contents will be placed on the main page
+# (index.html). This can be useful if you have a project on for instance GitHub
+# and want reuse the introduction page also for the doxygen output.
+
+USE_MDFILE_AS_MAINPAGE =
+
+#---------------------------------------------------------------------------
+# configuration options related to source browsing
+#---------------------------------------------------------------------------
+
+# If the SOURCE_BROWSER tag is set to YES then a list of source files will
+# be generated. Documented entities will be cross-referenced with these sources.
+# Note: To get rid of all source code in the generated output, make sure also
+# VERBATIM_HEADERS is set to NO.
+
+SOURCE_BROWSER         = NO
+
+# Setting the INLINE_SOURCES tag to YES will include the body
+# of functions and classes directly in the documentation.
+
+INLINE_SOURCES         = NO
+
+# Setting the STRIP_CODE_COMMENTS tag to YES (the default) will instruct
+# doxygen to hide any special comment blocks from generated source code
+# fragments. Normal C, C++ and Fortran comments will always remain visible.
+
+STRIP_CODE_COMMENTS    = YES
+
+# If the REFERENCED_BY_RELATION tag is set to YES
+# then for each documented function all documented
+# functions referencing it will be listed.
+
+REFERENCED_BY_RELATION = NO
+
+# If the REFERENCES_RELATION tag is set to YES
+# then for each documented function all documented entities
+# called/used by that function will be listed.
+
+REFERENCES_RELATION    = NO
+
+# If the REFERENCES_LINK_SOURCE tag is set to YES (the default)
+# and SOURCE_BROWSER tag is set to YES, then the hyperlinks from
+# functions in REFERENCES_RELATION and REFERENCED_BY_RELATION lists will
+# link to the source code.
+# Otherwise they will link to the documentation.
+
+REFERENCES_LINK_SOURCE = YES
+
+# If the USE_HTAGS tag is set to YES then the references to source code
+# will point to the HTML generated by the htags(1) tool instead of doxygen
+# built-in source browser. The htags tool is part of GNU's global source
+# tagging system (see http://www.gnu.org/software/global/global.html). You
+# will need version 4.8.6 or higher.
+
+USE_HTAGS              = NO
+
+# If the VERBATIM_HEADERS tag is set to YES (the default) then Doxygen
+# will generate a verbatim copy of the header file for each class for
+# which an include is specified. Set to NO to disable this.
+
+VERBATIM_HEADERS       = YES
+
+#---------------------------------------------------------------------------
+# configuration options related to the alphabetical class index
+#---------------------------------------------------------------------------
+
+# If the ALPHABETICAL_INDEX tag is set to YES, an alphabetical index
+# of all compounds will be generated. Enable this if the project
+# contains a lot of classes, structs, unions or interfaces.
+
+ALPHABETICAL_INDEX     = NO
+
+# If the alphabetical index is enabled (see ALPHABETICAL_INDEX) then
+# the COLS_IN_ALPHA_INDEX tag can be used to specify the number of columns
+# in which this list will be split (can be a number in the range [1..20])
+
+COLS_IN_ALPHA_INDEX    = 5
+
+# In case all classes in a project start with a common prefix, all
+# classes will be put under the same header in the alphabetical index.
+# The IGNORE_PREFIX tag can be used to specify one or more prefixes that
+# should be ignored while generating the index headers.
+
+IGNORE_PREFIX          =
+
+#---------------------------------------------------------------------------
+# configuration options related to the HTML output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_HTML tag is set to YES (the default) Doxygen will
+# generate HTML output.
+
+GENERATE_HTML          = YES
+
+# The HTML_OUTPUT tag is used to specify where the HTML docs will be put.
+# If a relative path is entered the value of OUTPUT_DIRECTORY will be
+# put in front of it. If left blank `html' will be used as the default path.
+
+HTML_OUTPUT            = html
+
+# The HTML_FILE_EXTENSION tag can be used to specify the file extension for
+# each generated HTML page (for example: .htm,.php,.asp). If it is left blank
+# doxygen will generate files with .html extension.
+
+HTML_FILE_EXTENSION    = .html
+
+# The HTML_HEADER tag can be used to specify a personal HTML header for
+# each generated HTML page. If it is left blank doxygen will generate a
+# standard header. Note that when using a custom header you are responsible
+#  for the proper inclusion of any scripts and style sheets that doxygen
+# needs, which is dependent on the configuration options used.
+# It is advised to generate a default header using "doxygen -w html
+# header.html footer.html stylesheet.css YourConfigFile" and then modify
+# that header. Note that the header is subject to change so you typically
+# have to redo this when upgrading to a newer version of doxygen or when
+# changing the value of configuration settings such as GENERATE_TREEVIEW!
+
+HTML_HEADER            =
+
+# The HTML_FOOTER tag can be used to specify a personal HTML footer for
+# each generated HTML page. If it is left blank doxygen will generate a
+# standard footer.
+
+HTML_FOOTER            =
+
+# The HTML_STYLESHEET tag can be used to specify a user-defined cascading
+# style sheet that is used by each HTML page. It can be used to
+# fine-tune the look of the HTML output. If left blank doxygen will
+# generate a default style sheet. Note that it is recommended to use
+# HTML_EXTRA_STYLESHEET instead of this one, as it is more robust and this
+# tag will in the future become obsolete.
+
+HTML_STYLESHEET        =
+
+# The HTML_EXTRA_STYLESHEET tag can be used to specify an additional
+# user-defined cascading style sheet that is included after the standard
+# style sheets created by doxygen. Using this option one can overrule
+# certain style aspects. This is preferred over using HTML_STYLESHEET
+# since it does not replace the standard style sheet and is therefor more
+# robust against future updates. Doxygen will copy the style sheet file to
+# the output directory.
+
+HTML_EXTRA_STYLESHEET  =
+
+# The HTML_EXTRA_FILES tag can be used to specify one or more extra images or
+# other source files which should be copied to the HTML output directory. Note
+# that these files will be copied to the base HTML output directory. Use the
+# $relpath^ marker in the HTML_HEADER and/or HTML_FOOTER files to load these
+# files. In the HTML_STYLESHEET file, use the file name only. Also note that
+# the files will be copied as-is; there are no commands or markers available.
+
+HTML_EXTRA_FILES       =
+
+# The HTML_COLORSTYLE_HUE tag controls the color of the HTML output.
+# Doxygen will adjust the colors in the style sheet and background images
+# according to this color. Hue is specified as an angle on a colorwheel,
+# see http://en.wikipedia.org/wiki/Hue for more information.
+# For instance the value 0 represents red, 60 is yellow, 120 is green,
+# 180 is cyan, 240 is blue, 300 purple, and 360 is red again.
+# The allowed range is 0 to 359.
+
+HTML_COLORSTYLE_HUE    = 220
+
+# The HTML_COLORSTYLE_SAT tag controls the purity (or saturation) of
+# the colors in the HTML output. For a value of 0 the output will use
+# grayscales only. A value of 255 will produce the most vivid colors.
+
+HTML_COLORSTYLE_SAT    = 100
+
+# The HTML_COLORSTYLE_GAMMA tag controls the gamma correction applied to
+# the luminance component of the colors in the HTML output. Values below
+# 100 gradually make the output lighter, whereas values above 100 make
+# the output darker. The value divided by 100 is the actual gamma applied,
+# so 80 represents a gamma of 0.8, The value 220 represents a gamma of 2.2,
+# and 100 does not change the gamma.
+
+HTML_COLORSTYLE_GAMMA  = 80
+
+# If the HTML_TIMESTAMP tag is set to YES then the footer of each generated HTML
+# page will contain the date and time when the page was generated. Setting
+# this to NO can help when comparing the output of multiple runs.
+
+HTML_TIMESTAMP         = NO
+
+# If the HTML_DYNAMIC_SECTIONS tag is set to YES then the generated HTML
+# documentation will contain sections that can be hidden and shown after the
+# page has loaded.
+
+HTML_DYNAMIC_SECTIONS  = NO
+
+# With HTML_INDEX_NUM_ENTRIES one can control the preferred number of
+# entries shown in the various tree structured indices initially; the user
+# can expand and collapse entries dynamically later on. Doxygen will expand
+# the tree to such a level that at most the specified number of entries are
+# visible (unless a fully collapsed tree already exceeds this amount).
+# So setting the number of entries 1 will produce a full collapsed tree by
+# default. 0 is a special value representing an infinite number of entries
+# and will result in a full expanded tree by default.
+
+HTML_INDEX_NUM_ENTRIES = 100
+
+# If the GENERATE_DOCSET tag is set to YES, additional index files
+# will be generated that can be used as input for Apple's Xcode 3
+# integrated development environment, introduced with OSX 10.5 (Leopard).
+# To create a documentation set, doxygen will generate a Makefile in the
+# HTML output directory. Running make will produce the docset in that
+# directory and running "make install" will install the docset in
+# ~/Library/Developer/Shared/Documentation/DocSets so that Xcode will find
+# it at startup.
+# See http://developer.apple.com/tools/creatingdocsetswithdoxygen.html
+# for more information.
+
+GENERATE_DOCSET        = NO
+
+# When GENERATE_DOCSET tag is set to YES, this tag determines the name of the
+# feed. A documentation feed provides an umbrella under which multiple
+# documentation sets from a single provider (such as a company or product suite)
+# can be grouped.
+
+DOCSET_FEEDNAME        = "Doxygen generated docs"
+
+# When GENERATE_DOCSET tag is set to YES, this tag specifies a string that
+# should uniquely identify the documentation set bundle. This should be a
+# reverse domain-name style string, e.g. com.mycompany.MyDocSet. Doxygen
+# will append .docset to the name.
+
+DOCSET_BUNDLE_ID       = org.doxygen.Project
+
+# When GENERATE_PUBLISHER_ID tag specifies a string that should uniquely
+# identify the documentation publisher. This should be a reverse domain-name
+# style string, e.g. com.mycompany.MyDocSet.documentation.
+
+DOCSET_PUBLISHER_ID    = org.doxygen.Publisher
+
+# The GENERATE_PUBLISHER_NAME tag identifies the documentation publisher.
+
+DOCSET_PUBLISHER_NAME  = Publisher
+
+# If the GENERATE_HTMLHELP tag is set to YES, additional index files
+# will be generated that can be used as input for tools like the
+# Microsoft HTML help workshop to generate a compiled HTML help file (.chm)
+# of the generated HTML documentation.
+
+GENERATE_HTMLHELP      = NO
+
+# If the GENERATE_HTMLHELP tag is set to YES, the CHM_FILE tag can
+# be used to specify the file name of the resulting .chm file. You
+# can add a path in front of the file if the result should not be
+# written to the html output directory.
+
+CHM_FILE               =
+
+# If the GENERATE_HTMLHELP tag is set to YES, the HHC_LOCATION tag can
+# be used to specify the location (absolute path including file name) of
+# the HTML help compiler (hhc.exe). If non-empty doxygen will try to run
+# the HTML help compiler on the generated index.hhp.
+
+HHC_LOCATION           =
+
+# If the GENERATE_HTMLHELP tag is set to YES, the GENERATE_CHI flag
+# controls if a separate .chi index file is generated (YES) or that
+# it should be included in the master .chm file (NO).
+
+GENERATE_CHI           = NO
+
+# If the GENERATE_HTMLHELP tag is set to YES, the CHM_INDEX_ENCODING
+# is used to encode HtmlHelp index (hhk), content (hhc) and project file
+# content.
+
+CHM_INDEX_ENCODING     =
+
+# If the GENERATE_HTMLHELP tag is set to YES, the BINARY_TOC flag
+# controls whether a binary table of contents is generated (YES) or a
+# normal table of contents (NO) in the .chm file.
+
+BINARY_TOC             = NO
+
+# The TOC_EXPAND flag can be set to YES to add extra items for group members
+# to the contents of the HTML help documentation and to the tree view.
+
+TOC_EXPAND             = NO
+
+# If the GENERATE_QHP tag is set to YES and both QHP_NAMESPACE and
+# QHP_VIRTUAL_FOLDER are set, an additional index file will be generated
+# that can be used as input for Qt's qhelpgenerator to generate a
+# Qt Compressed Help (.qch) of the generated HTML documentation.
+
+GENERATE_QHP           = NO
+
+# If the QHG_LOCATION tag is specified, the QCH_FILE tag can
+# be used to specify the file name of the resulting .qch file.
+# The path specified is relative to the HTML output folder.
+
+QCH_FILE               =
+
+# The QHP_NAMESPACE tag specifies the namespace to use when generating
+# Qt Help Project output. For more information please see
+# http://doc.trolltech.com/qthelpproject.html#namespace
+
+QHP_NAMESPACE          =
+
+# The QHP_VIRTUAL_FOLDER tag specifies the namespace to use when generating
+# Qt Help Project output. For more information please see
+# http://doc.trolltech.com/qthelpproject.html#virtual-folders
+
+QHP_VIRTUAL_FOLDER     = doc
+
+# If QHP_CUST_FILTER_NAME is set, it specifies the name of a custom filter to
+# add. For more information please see
+# http://doc.trolltech.com/qthelpproject.html#custom-filters
+
+QHP_CUST_FILTER_NAME   =
+
+# The QHP_CUST_FILT_ATTRS tag specifies the list of the attributes of the
+# custom filter to add. For more information please see
+# <a href="http://doc.trolltech.com/qthelpproject.html#custom-filters">
+# Qt Help Project / Custom Filters</a>.
+
+QHP_CUST_FILTER_ATTRS  =
+
+# The QHP_SECT_FILTER_ATTRS tag specifies the list of the attributes this
+# project's
+# filter section matches.
+# <a href="http://doc.trolltech.com/qthelpproject.html#filter-attributes">
+# Qt Help Project / Filter Attributes</a>.
+
+QHP_SECT_FILTER_ATTRS  =
+
+# If the GENERATE_QHP tag is set to YES, the QHG_LOCATION tag can
+# be used to specify the location of Qt's qhelpgenerator.
+# If non-empty doxygen will try to run qhelpgenerator on the generated
+# .qhp file.
+
+QHG_LOCATION           =
+
+# If the GENERATE_ECLIPSEHELP tag is set to YES, additional index files
+#  will be generated, which together with the HTML files, form an Eclipse help
+# plugin. To install this plugin and make it available under the help contents
+# menu in Eclipse, the contents of the directory containing the HTML and XML
+# files needs to be copied into the plugins directory of eclipse. The name of
+# the directory within the plugins directory should be the same as
+# the ECLIPSE_DOC_ID value. After copying Eclipse needs to be restarted before
+# the help appears.
+
+GENERATE_ECLIPSEHELP   = NO
+
+# A unique identifier for the eclipse help plugin. When installing the plugin
+# the directory name containing the HTML and XML files should also have
+# this name.
+
+ECLIPSE_DOC_ID         = org.doxygen.Project
+
+# The DISABLE_INDEX tag can be used to turn on/off the condensed index (tabs)
+# at top of each HTML page. The value NO (the default) enables the index and
+# the value YES disables it. Since the tabs have the same information as the
+# navigation tree you can set this option to NO if you already set
+# GENERATE_TREEVIEW to YES.
+
+DISABLE_INDEX          = NO
+
+# The GENERATE_TREEVIEW tag is used to specify whether a tree-like index
+# structure should be generated to display hierarchical information.
+# If the tag value is set to YES, a side panel will be generated
+# containing a tree-like index structure (just like the one that
+# is generated for HTML Help). For this to work a browser that supports
+# JavaScript, DHTML, CSS and frames is required (i.e. any modern browser).
+# Windows users are probably better off using the HTML help feature.
+# Since the tree basically has the same information as the tab index you
+# could consider to set DISABLE_INDEX to NO when enabling this option.
+
+GENERATE_TREEVIEW      = NONE
+
+# The ENUM_VALUES_PER_LINE tag can be used to set the number of enum values
+# (range [0,1..20]) that doxygen will group on one line in the generated HTML
+# documentation. Note that a value of 0 will completely suppress the enum
+# values from appearing in the overview section.
+
+ENUM_VALUES_PER_LINE   = 4
+
+# If the treeview is enabled (see GENERATE_TREEVIEW) then this tag can be
+# used to set the initial width (in pixels) of the frame in which the tree
+# is shown.
+
+TREEVIEW_WIDTH         = 250
+
+# When the EXT_LINKS_IN_WINDOW option is set to YES doxygen will open
+# links to external symbols imported via tag files in a separate window.
+
+EXT_LINKS_IN_WINDOW    = NO
+
+# Use this tag to change the font size of Latex formulas included
+# as images in the HTML documentation. The default is 10. Note that
+# when you change the font size after a successful doxygen run you need
+# to manually remove any form_*.png images from the HTML output directory
+# to force them to be regenerated.
+
+FORMULA_FONTSIZE       = 10
+
+# Use the FORMULA_TRANPARENT tag to determine whether or not the images
+# generated for formulas are transparent PNGs. Transparent PNGs are
+# not supported properly for IE 6.0, but are supported on all modern browsers.
+# Note that when changing this option you need to delete any form_*.png files
+# in the HTML output before the changes have effect.
+
+FORMULA_TRANSPARENT    = YES
+
+# Enable the USE_MATHJAX option to render LaTeX formulas using MathJax
+# (see http://www.mathjax.org) which uses client side Javascript for the
+# rendering instead of using prerendered bitmaps. Use this if you do not
+# have LaTeX installed or if you want to formulas look prettier in the HTML
+# output. When enabled you may also need to install MathJax separately and
+# configure the path to it using the MATHJAX_RELPATH option.
+
+USE_MATHJAX            = NO
+
+# When MathJax is enabled you can set the default output format to be used for
+# the MathJax output. Supported types are HTML-CSS, NativeMML (i.e. MathML) and
+# SVG. The default value is HTML-CSS, which is slower, but has the best
+# compatibility.
+
+MATHJAX_FORMAT         = HTML-CSS
+
+# When MathJax is enabled you need to specify the location relative to the
+# HTML output directory using the MATHJAX_RELPATH option. The destination
+# directory should contain the MathJax.js script. For instance, if the mathjax
+# directory is located at the same level as the HTML output directory, then
+# MATHJAX_RELPATH should be ../mathjax. The default value points to
+# the MathJax Content Delivery Network so you can quickly see the result without
+# installing MathJax.
+# However, it is strongly recommended to install a local
+# copy of MathJax from http://www.mathjax.org before deployment.
+
+MATHJAX_RELPATH        = http://cdn.mathjax.org/mathjax/latest
+
+# The MATHJAX_EXTENSIONS tag can be used to specify one or MathJax extension
+# names that should be enabled during MathJax rendering.
+
+MATHJAX_EXTENSIONS     =
+
+# The MATHJAX_CODEFILE tag can be used to specify a file with javascript
+# pieces of code that will be used on startup of the MathJax code.
+
+MATHJAX_CODEFILE       =
+
+# When the SEARCHENGINE tag is enabled doxygen will generate a search box
+# for the HTML output. The underlying search engine uses javascript
+# and DHTML and should work on any modern browser. Note that when using
+# HTML help (GENERATE_HTMLHELP), Qt help (GENERATE_QHP), or docsets
+# (GENERATE_DOCSET) there is already a search function so this one should
+# typically be disabled. For large projects the javascript based search engine
+# can be slow, then enabling SERVER_BASED_SEARCH may provide a better solution.
+
+SEARCHENGINE           = NO
+
+# When the SERVER_BASED_SEARCH tag is enabled the search engine will be
+# implemented using a web server instead of a web client using Javascript.
+# There are two flavours of web server based search depending on the
+# EXTERNAL_SEARCH setting. When disabled, doxygen will generate a PHP script for
+# searching and an index file used by the script. When EXTERNAL_SEARCH is
+# enabled the indexing and searching needs to be provided by external tools.
+# See the manual for details.
+
+SERVER_BASED_SEARCH    = NO
+
+# When EXTERNAL_SEARCH is enabled doxygen will no longer generate the PHP
+# script for searching. Instead the search results are written to an XML file
+# which needs to be processed by an external indexer. Doxygen will invoke an
+# external search engine pointed to by the SEARCHENGINE_URL option to obtain
+# the search results. Doxygen ships with an example indexer (doxyindexer) and
+# search engine (doxysearch.cgi) which are based on the open source search
+# engine library Xapian. See the manual for configuration details.
+
+EXTERNAL_SEARCH        = NO
+
+# The SEARCHENGINE_URL should point to a search engine hosted by a web server
+# which will returned the search results when EXTERNAL_SEARCH is enabled.
+# Doxygen ships with an example search engine (doxysearch) which is based on
+# the open source search engine library Xapian. See the manual for configuration
+# details.
+
+SEARCHENGINE_URL       =
+
+# When SERVER_BASED_SEARCH and EXTERNAL_SEARCH are both enabled the unindexed
+# search data is written to a file for indexing by an external tool. With the
+# SEARCHDATA_FILE tag the name of this file can be specified.
+
+SEARCHDATA_FILE        = searchdata.xml
+
+# When SERVER_BASED_SEARCH AND EXTERNAL_SEARCH are both enabled the
+# EXTERNAL_SEARCH_ID tag can be used as an identifier for the project. This is
+# useful in combination with EXTRA_SEARCH_MAPPINGS to search through multiple
+# projects and redirect the results back to the right project.
+
+EXTERNAL_SEARCH_ID     =
+
+# The EXTRA_SEARCH_MAPPINGS tag can be used to enable searching through doxygen
+# projects other than the one defined by this configuration file, but that are
+# all added to the same external search index. Each project needs to have a
+# unique id set via EXTERNAL_SEARCH_ID. The search mapping then maps the id
+# of to a relative location where the documentation can be found.
+# The format is: EXTRA_SEARCH_MAPPINGS = id1=loc1 id2=loc2 ...
+
+EXTRA_SEARCH_MAPPINGS  =
+
+#---------------------------------------------------------------------------
+# configuration options related to the LaTeX output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_LATEX tag is set to YES (the default) Doxygen will
+# generate Latex output.
+
+GENERATE_LATEX         = YES
+
+# The LATEX_OUTPUT tag is used to specify where the LaTeX docs will be put.
+# If a relative path is entered the value of OUTPUT_DIRECTORY will be
+# put in front of it. If left blank `latex' will be used as the default path.
+
+LATEX_OUTPUT           = latex
+
+# The LATEX_CMD_NAME tag can be used to specify the LaTeX command name to be
+# invoked. If left blank `latex' will be used as the default command name.
+# Note that when enabling USE_PDFLATEX this option is only used for
+# generating bitmaps for formulas in the HTML output, but not in the
+# Makefile that is written to the output directory.
+
+LATEX_CMD_NAME         = latex
+
+# The MAKEINDEX_CMD_NAME tag can be used to specify the command name to
+# generate index for LaTeX. If left blank `makeindex' will be used as the
+# default command name.
+
+MAKEINDEX_CMD_NAME     = makeindex
+
+# If the COMPACT_LATEX tag is set to YES Doxygen generates more compact
+# LaTeX documents. This may be useful for small projects and may help to
+# save some trees in general.
+
+COMPACT_LATEX          = NO
+
+# The PAPER_TYPE tag can be used to set the paper type that is used
+# by the printer. Possible values are: a4, letter, legal and
+# executive. If left blank a4 will be used.
+
+PAPER_TYPE             = a4wide
+
+# The EXTRA_PACKAGES tag can be to specify one or more names of LaTeX
+# packages that should be included in the LaTeX output.
+
+EXTRA_PACKAGES         =
+
+# The LATEX_HEADER tag can be used to specify a personal LaTeX header for
+# the generated latex document. The header should contain everything until
+# the first chapter. If it is left blank doxygen will generate a
+# standard header. Notice: only use this tag if you know what you are doing!
+
+LATEX_HEADER           =
+
+# The LATEX_FOOTER tag can be used to specify a personal LaTeX footer for
+# the generated latex document. The footer should contain everything after
+# the last chapter. If it is left blank doxygen will generate a
+# standard footer. Notice: only use this tag if you know what you are doing!
+
+LATEX_FOOTER           =
+
+# The LATEX_EXTRA_FILES tag can be used to specify one or more extra images
+# or other source files which should be copied to the LaTeX output directory.
+# Note that the files will be copied as-is; there are no commands or markers
+# available.
+
+LATEX_EXTRA_FILES      =
+
+# If the PDF_HYPERLINKS tag is set to YES, the LaTeX that is generated
+# is prepared for conversion to pdf (using ps2pdf). The pdf file will
+# contain links (just like the HTML output) instead of page references
+# This makes the output suitable for online browsing using a pdf viewer.
+
+PDF_HYPERLINKS         = YES
+
+# If the USE_PDFLATEX tag is set to YES, pdflatex will be used instead of
+# plain latex in the generated Makefile. Set this option to YES to get a
+# higher quality PDF documentation.
+
+USE_PDFLATEX           = YES
+
+# If the LATEX_BATCHMODE tag is set to YES, doxygen will add the \\batchmode.
+# command to the generated LaTeX files. This will instruct LaTeX to keep
+# running if errors occur, instead of asking the user for help.
+# This option is also used when generating formulas in HTML.
+
+LATEX_BATCHMODE        = NO
+
+# If LATEX_HIDE_INDICES is set to YES then doxygen will not
+# include the index chapters (such as File Index, Compound Index, etc.)
+# in the output.
+
+LATEX_HIDE_INDICES     = NO
+
+# If LATEX_SOURCE_CODE is set to YES then doxygen will include
+# source code with syntax highlighting in the LaTeX output.
+# Note that which sources are shown also depends on other settings
+# such as SOURCE_BROWSER.
+
+LATEX_SOURCE_CODE      = NO
+
+# The LATEX_BIB_STYLE tag can be used to specify the style to use for the
+# bibliography, e.g. plainnat, or ieeetr. The default style is "plain". See
+# http://en.wikipedia.org/wiki/BibTeX for more info.
+
+LATEX_BIB_STYLE        = plain
+
+#---------------------------------------------------------------------------
+# configuration options related to the RTF output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_RTF tag is set to YES Doxygen will generate RTF output
+# The RTF output is optimized for Word 97 and may not look very pretty with
+# other RTF readers or editors.
+
+GENERATE_RTF           = NO
+
+# The RTF_OUTPUT tag is used to specify where the RTF docs will be put.
+# If a relative path is entered the value of OUTPUT_DIRECTORY will be
+# put in front of it. If left blank `rtf' will be used as the default path.
+
+RTF_OUTPUT             = rtf
+
+# If the COMPACT_RTF tag is set to YES Doxygen generates more compact
+# RTF documents. This may be useful for small projects and may help to
+# save some trees in general.
+
+COMPACT_RTF            = NO
+
+# If the RTF_HYPERLINKS tag is set to YES, the RTF that is generated
+# will contain hyperlink fields. The RTF file will
+# contain links (just like the HTML output) instead of page references.
+# This makes the output suitable for online browsing using WORD or other
+# programs which support those fields.
+# Note: wordpad (write) and others do not support links.
+
+RTF_HYPERLINKS         = NO
+
+# Load style sheet definitions from file. Syntax is similar to doxygen's
+# config file, i.e. a series of assignments. You only have to provide
+# replacements, missing definitions are set to their default value.
+
+RTF_STYLESHEET_FILE    =
+
+# Set optional variables used in the generation of an rtf document.
+# Syntax is similar to doxygen's config file.
+
+RTF_EXTENSIONS_FILE    =
+
+#---------------------------------------------------------------------------
+# configuration options related to the man page output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_MAN tag is set to YES (the default) Doxygen will
+# generate man pages
+
+GENERATE_MAN           = YES
+
+# The MAN_OUTPUT tag is used to specify where the man pages will be put.
+# If a relative path is entered the value of OUTPUT_DIRECTORY will be
+# put in front of it. If left blank `man' will be used as the default path.
+
+MAN_OUTPUT             = man
+
+# The MAN_EXTENSION tag determines the extension that is added to
+# the generated man pages (default is the subroutine's section .3)
+
+MAN_EXTENSION          = .3
+
+# If the MAN_LINKS tag is set to YES and Doxygen generates man output,
+# then it will generate one additional man file for each entity
+# documented in the real man page(s). These additional files
+# only source the real man page, but without them the man command
+# would be unable to find the correct page. The default is NO.
+
+MAN_LINKS              = NO
+
+#---------------------------------------------------------------------------
+# configuration options related to the XML output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_XML tag is set to YES Doxygen will
+# generate an XML file that captures the structure of
+# the code including all documentation.
+
+GENERATE_XML           = NO
+
+# The XML_OUTPUT tag is used to specify where the XML pages will be put.
+# If a relative path is entered the value of OUTPUT_DIRECTORY will be
+# put in front of it. If left blank `xml' will be used as the default path.
+
+XML_OUTPUT             = xml
+
+# The XML_SCHEMA tag can be used to specify an XML schema,
+# which can be used by a validating XML parser to check the
+# syntax of the XML files.
+
+XML_SCHEMA             =
+
+# The XML_DTD tag can be used to specify an XML DTD,
+# which can be used by a validating XML parser to check the
+# syntax of the XML files.
+
+XML_DTD                =
+
+# If the XML_PROGRAMLISTING tag is set to YES Doxygen will
+# dump the program listings (including syntax highlighting
+# and cross-referencing information) to the XML output. Note that
+# enabling this will significantly increase the size of the XML output.
+
+XML_PROGRAMLISTING     = YES
+
+#---------------------------------------------------------------------------
+# configuration options related to the DOCBOOK output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_DOCBOOK tag is set to YES Doxygen will generate DOCBOOK files
+# that can be used to generate PDF.
+
+GENERATE_DOCBOOK       = NO
+
+# The DOCBOOK_OUTPUT tag is used to specify where the DOCBOOK pages will be put.
+# If a relative path is entered the value of OUTPUT_DIRECTORY will be put in
+# front of it. If left blank docbook will be used as the default path.
+
+DOCBOOK_OUTPUT         = docbook
+
+#---------------------------------------------------------------------------
+# configuration options for the AutoGen Definitions output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_AUTOGEN_DEF tag is set to YES Doxygen will
+# generate an AutoGen Definitions (see autogen.sf.net) file
+# that captures the structure of the code including all
+# documentation. Note that this feature is still experimental
+# and incomplete at the moment.
+
+GENERATE_AUTOGEN_DEF   = NO
+
+#---------------------------------------------------------------------------
+# configuration options related to the Perl module output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_PERLMOD tag is set to YES Doxygen will
+# generate a Perl module file that captures the structure of
+# the code including all documentation. Note that this
+# feature is still experimental and incomplete at the
+# moment.
+
+GENERATE_PERLMOD       = NO
+
+# If the PERLMOD_LATEX tag is set to YES Doxygen will generate
+# the necessary Makefile rules, Perl scripts and LaTeX code to be able
+# to generate PDF and DVI output from the Perl module output.
+
+PERLMOD_LATEX          = NO
+
+# If the PERLMOD_PRETTY tag is set to YES the Perl module output will be
+# nicely formatted so it can be parsed by a human reader.
+# This is useful
+# if you want to understand what is going on.
+# On the other hand, if this
+# tag is set to NO the size of the Perl module output will be much smaller
+# and Perl will parse it just the same.
+
+PERLMOD_PRETTY         = YES
+
+# The names of the make variables in the generated doxyrules.make file
+# are prefixed with the string contained in PERLMOD_MAKEVAR_PREFIX.
+# This is useful so different doxyrules.make files included by the same
+# Makefile don't overwrite each other's variables.
+
+PERLMOD_MAKEVAR_PREFIX =
+
+#---------------------------------------------------------------------------
+# Configuration options related to the preprocessor
+#---------------------------------------------------------------------------
+
+# If the ENABLE_PREPROCESSING tag is set to YES (the default) Doxygen will
+# evaluate all C-preprocessor directives found in the sources and include
+# files.
+
+ENABLE_PREPROCESSING   = YES
+
+# If the MACRO_EXPANSION tag is set to YES Doxygen will expand all macro
+# names in the source code. If set to NO (the default) only conditional
+# compilation will be performed. Macro expansion can be done in a controlled
+# way by setting EXPAND_ONLY_PREDEF to YES.
+
+MACRO_EXPANSION        = YES
+
+# If the EXPAND_ONLY_PREDEF and MACRO_EXPANSION tags are both set to YES
+# then the macro expansion is limited to the macros specified with the
+# PREDEFINED and EXPAND_AS_DEFINED tags.
+
+EXPAND_ONLY_PREDEF     = YES
+
+# If the SEARCH_INCLUDES tag is set to YES (the default) the includes files
+# pointed to by INCLUDE_PATH will be searched when a #include is found.
+
+SEARCH_INCLUDES        = YES
+
+# The INCLUDE_PATH tag can be used to specify one or more directories that
+# contain include files that are not input files but should be processed by
+# the preprocessor.
+
+INCLUDE_PATH           =
+
+# You can use the INCLUDE_FILE_PATTERNS tag to specify one or more wildcard
+# patterns (like *.h and *.hpp) to filter out the header-files in the
+# directories. If left blank, the patterns specified with FILE_PATTERNS will
+# be used.
+
+INCLUDE_FILE_PATTERNS  =
+
+# The PREDEFINED tag can be used to specify one or more macro names that
+# are defined before the preprocessor is started (similar to the -D option of
+# gcc). The argument of the tag is a list of macros of the form: name
+# or name=definition (no spaces). If the definition and the = are
+# omitted =1 is assumed. To prevent a macro definition from being
+# undefined via #undef or recursively expanded use the := operator
+# instead of the = operator.
+
+PREDEFINED             = DOXYGEN \
+                         PRINTF_ATTRIBUTE(x,y)=
+
+# If the MACRO_EXPANSION and EXPAND_ONLY_PREDEF tags are set to YES then
+# this tag can be used to specify a list of macro names that should be expanded.
+# The macro definition that is found in the sources will be used.
+# Use the PREDEFINED tag if you want to use a different macro definition that
+# overrules the definition found in the source code.
+
+EXPAND_AS_DEFINED      =
+
+# If the SKIP_FUNCTION_MACROS tag is set to YES (the default) then
+# doxygen's preprocessor will remove all references to function-like macros
+# that are alone on a line, have an all uppercase name, and do not end with a
+# semicolon, because these will confuse the parser if not removed.
+
+SKIP_FUNCTION_MACROS   = YES
+
+#---------------------------------------------------------------------------
+# Configuration::additions related to external references
+#---------------------------------------------------------------------------
+
+# The TAGFILES option can be used to specify one or more tagfiles. For each
+# tag file the location of the external documentation should be added. The
+# format of a tag file without this location is as follows:
+#
+# TAGFILES = file1 file2 ...
+# Adding location for the tag files is done as follows:
+#
+# TAGFILES = file1=loc1 "file2 = loc2" ...
+# where "loc1" and "loc2" can be relative or absolute paths
+# or URLs. Note that each tag file must have a unique name (where the name does
+# NOT include the path). If a tag file is not located in the directory in which
+# doxygen is run, you must also specify the path to the tagfile here.
+
+TAGFILES               =
+
+# When a file name is specified after GENERATE_TAGFILE, doxygen will create
+# a tag file that is based on the input files it reads.
+
+GENERATE_TAGFILE       =
+
+# If the ALLEXTERNALS tag is set to YES all external classes will be listed
+# in the class index. If set to NO only the inherited external classes
+# will be listed.
+
+ALLEXTERNALS           = NO
+
+# If the EXTERNAL_GROUPS tag is set to YES all external groups will be listed
+# in the modules index. If set to NO, only the current project's groups will
+# be listed.
+
+EXTERNAL_GROUPS        = YES
+
+# If the EXTERNAL_PAGES tag is set to YES all external pages will be listed
+# in the related pages index. If set to NO, only the current project's
+# pages will be listed.
+
+EXTERNAL_PAGES         = YES
+
+# The PERL_PATH should be the absolute path and name of the perl script
+# interpreter (i.e. the result of `which perl').
+
+PERL_PATH              = /usr/bin/perl
+
+#---------------------------------------------------------------------------
+# Configuration options related to the dot tool
+#---------------------------------------------------------------------------
+
+# If the CLASS_DIAGRAMS tag is set to YES (the default) Doxygen will
+# generate a inheritance diagram (in HTML, RTF and LaTeX) for classes with base
+# or super classes. Setting the tag to NO turns the diagrams off. Note that
+# this option also works with HAVE_DOT disabled, but it is recommended to
+# install and use dot, since it yields more powerful graphs.
+
+CLASS_DIAGRAMS         = YES
+
+# You can define message sequence charts within doxygen comments using the \msc
+# command. Doxygen will then run the mscgen tool (see
+# http://www.mcternan.me.uk/mscgen/) to produce the chart and insert it in the
+# documentation. The MSCGEN_PATH tag allows you to specify the directory where
+# the mscgen tool resides. If left empty the tool is assumed to be found in the
+# default search path.
+
+MSCGEN_PATH            =
+
+# If set to YES, the inheritance and collaboration graphs will hide
+# inheritance and usage relations if the target is undocumented
+# or is not a class.
+
+HIDE_UNDOC_RELATIONS   = YES
+
+# If you set the HAVE_DOT tag to YES then doxygen will assume the dot tool is
+# available from the path. This tool is part of Graphviz, a graph visualization
+# toolkit from AT&T and Lucent Bell Labs. The other options in this section
+# have no effect if this option is set to NO (the default)
+
+HAVE_DOT               = NO
+
+# The DOT_NUM_THREADS specifies the number of dot invocations doxygen is
+# allowed to run in parallel. When set to 0 (the default) doxygen will
+# base this on the number of processors available in the system. You can set it
+# explicitly to a value larger than 0 to get control over the balance
+# between CPU load and processing speed.
+
+DOT_NUM_THREADS        = 0
+
+# By default doxygen will use the Helvetica font for all dot files that
+# doxygen generates. When you want a differently looking font you can specify
+# the font name using DOT_FONTNAME. You need to make sure dot is able to find
+# the font, which can be done by putting it in a standard location or by setting
+# the DOTFONTPATH environment variable or by setting DOT_FONTPATH to the
+# directory containing the font.
+
+DOT_FONTNAME           = FreeSans
+
+# The DOT_FONTSIZE tag can be used to set the size of the font of dot graphs.
+# The default size is 10pt.
+
+DOT_FONTSIZE           = 10
+
+# By default doxygen will tell dot to use the Helvetica font.
+# If you specify a different font using DOT_FONTNAME you can use DOT_FONTPATH to
+# set the path where dot can find it.
+
+DOT_FONTPATH           =
+
+# If the CLASS_GRAPH and HAVE_DOT tags are set to YES then doxygen
+# will generate a graph for each documented class showing the direct and
+# indirect inheritance relations. Setting this tag to YES will force the
+# CLASS_DIAGRAMS tag to NO.
+
+CLASS_GRAPH            = YES
+
+# If the COLLABORATION_GRAPH and HAVE_DOT tags are set to YES then doxygen
+# will generate a graph for each documented class showing the direct and
+# indirect implementation dependencies (inheritance, containment, and
+# class references variables) of the class with other documented classes.
+
+COLLABORATION_GRAPH    = YES
+
+# If the GROUP_GRAPHS and HAVE_DOT tags are set to YES then doxygen
+# will generate a graph for groups, showing the direct groups dependencies
+
+GROUP_GRAPHS           = YES
+
+# If the UML_LOOK tag is set to YES doxygen will generate inheritance and
+# collaboration diagrams in a style similar to the OMG's Unified Modeling
+# Language.
+
+UML_LOOK               = NO
+
+# If the UML_LOOK tag is enabled, the fields and methods are shown inside
+# the class node. If there are many fields or methods and many nodes the
+# graph may become too big to be useful. The UML_LIMIT_NUM_FIELDS
+# threshold limits the number of items for each type to make the size more
+# manageable. Set this to 0 for no limit. Note that the threshold may be
+# exceeded by 50% before the limit is enforced.
+
+UML_LIMIT_NUM_FIELDS   = 10
+
+# If set to YES, the inheritance and collaboration graphs will show the
+# relations between templates and their instances.
+
+TEMPLATE_RELATIONS     = NO
+
+# If the ENABLE_PREPROCESSING, SEARCH_INCLUDES, INCLUDE_GRAPH, and HAVE_DOT
+# tags are set to YES then doxygen will generate a graph for each documented
+# file showing the direct and indirect include dependencies of the file with
+# other documented files.
+
+INCLUDE_GRAPH          = YES
+
+# If the ENABLE_PREPROCESSING, SEARCH_INCLUDES, INCLUDED_BY_GRAPH, and
+# HAVE_DOT tags are set to YES then doxygen will generate a graph for each
+# documented header file showing the documented files that directly or
+# indirectly include this file.
+
+INCLUDED_BY_GRAPH      = YES
+
+# If the CALL_GRAPH and HAVE_DOT options are set to YES then
+# doxygen will generate a call dependency graph for every global function
+# or class method. Note that enabling this option will significantly increase
+# the time of a run. So in most cases it will be better to enable call graphs
+# for selected functions only using the \callgraph command.
+
+CALL_GRAPH             = NO
+
+# If the CALLER_GRAPH and HAVE_DOT tags are set to YES then
+# doxygen will generate a caller dependency graph for every global function
+# or class method. Note that enabling this option will significantly increase
+# the time of a run. So in most cases it will be better to enable caller
+# graphs for selected functions only using the \callergraph command.
+
+CALLER_GRAPH           = NO
+
+# If the GRAPHICAL_HIERARCHY and HAVE_DOT tags are set to YES then doxygen
+# will generate a graphical hierarchy of all classes instead of a textual one.
+
+GRAPHICAL_HIERARCHY    = YES
+
+# If the DIRECTORY_GRAPH and HAVE_DOT tags are set to YES
+# then doxygen will show the dependencies a directory has on other directories
+# in a graphical way. The dependency relations are determined by the #include
+# relations between the files in the directories.
+
+DIRECTORY_GRAPH        = YES
+
+# The DOT_IMAGE_FORMAT tag can be used to set the image format of the images
+# generated by dot. Possible values are svg, png, jpg, or gif.
+# If left blank png will be used. If you choose svg you need to set
+# HTML_FILE_EXTENSION to xhtml in order to make the SVG files
+# visible in IE 9+ (other browsers do not have this requirement).
+
+DOT_IMAGE_FORMAT       = png
+
+# If DOT_IMAGE_FORMAT is set to svg, then this option can be set to YES to
+# enable generation of interactive SVG images that allow zooming and panning.
+# Note that this requires a modern browser other than Internet Explorer.
+# Tested and working are Firefox, Chrome, Safari, and Opera. For IE 9+ you
+# need to set HTML_FILE_EXTENSION to xhtml in order to make the SVG files
+# visible. Older versions of IE do not have SVG support.
+
+INTERACTIVE_SVG        = NO
+
+# The tag DOT_PATH can be used to specify the path where the dot tool can be
+# found. If left blank, it is assumed the dot tool can be found in the path.
+
+DOT_PATH               =
+
+# The DOTFILE_DIRS tag can be used to specify one or more directories that
+# contain dot files that are included in the documentation (see the
+# \dotfile command).
+
+DOTFILE_DIRS           =
+
+# The MSCFILE_DIRS tag can be used to specify one or more directories that
+# contain msc files that are included in the documentation (see the
+# \mscfile command).
+
+MSCFILE_DIRS           =
+
+# The DOT_GRAPH_MAX_NODES tag can be used to set the maximum number of
+# nodes that will be shown in the graph. If the number of nodes in a graph
+# becomes larger than this value, doxygen will truncate the graph, which is
+# visualized by representing a node as a red box. Note that doxygen if the
+# number of direct children of the root node in a graph is already larger than
+# DOT_GRAPH_MAX_NODES then the graph will not be shown at all. Also note
+# that the size of a graph can be further restricted by MAX_DOT_GRAPH_DEPTH.
+
+DOT_GRAPH_MAX_NODES    = 50
+
+# The MAX_DOT_GRAPH_DEPTH tag can be used to set the maximum depth of the
+# graphs generated by dot. A depth value of 3 means that only nodes reachable
+# from the root by following a path via at most 3 edges will be shown. Nodes
+# that lay further from the root node will be omitted. Note that setting this
+# option to 1 or 2 may greatly reduce the computation time needed for large
+# code bases. Also note that the size of a graph can be further restricted by
+# DOT_GRAPH_MAX_NODES. Using a depth of 0 means no depth restriction.
+
+MAX_DOT_GRAPH_DEPTH    = 0
+
+# Set the DOT_TRANSPARENT tag to YES to generate images with a transparent
+# background. This is disabled by default, because dot on Windows does not
+# seem to support this out of the box. Warning: Depending on the platform used,
+# enabling this option may lead to badly anti-aliased labels on the edges of
+# a graph (i.e. they become hard to read).
+
+DOT_TRANSPARENT        = YES
+
+# Set the DOT_MULTI_TARGETS tag to YES allow dot to generate multiple output
+# files in one run (i.e. multiple -o and -T options on the command line). This
+# makes dot run faster, but since only newer versions of dot (>1.8.10)
+# support this, this feature is disabled by default.
+
+DOT_MULTI_TARGETS      = NO
+
+# If the GENERATE_LEGEND tag is set to YES (the default) Doxygen will
+# generate a legend page explaining the meaning of the various boxes and
+# arrows in the dot generated graphs.
+
+GENERATE_LEGEND        = YES
+
+# If the DOT_CLEANUP tag is set to YES (the default) Doxygen will
+# remove the intermediate dot files that are used to generate
+# the various graphs.
+
+DOT_CLEANUP            = YES
diff --git a/lib/tevent/echo_server.c b/lib/tevent/echo_server.c
new file mode 100644
index 0000000..f93d8bc
--- /dev/null
+++ b/lib/tevent/echo_server.c
@@ -0,0 +1,667 @@
+/**
+ ** NOTE! The following liberal license applies to this sample file only.
+ ** This does NOT imply that all of Samba is released under this license.
+ **
+ ** This file is meant as a starting point for libtevent users to be used
+ ** in any program linking against the LGPL licensed libtevent.
+ **/
+
+/*
+ * This file is being made available by the Samba Team under the following
+ * license:
+ *
+ * Permission to use, copy, modify, and distribute this sample file for any
+ * purpose is hereby granted without fee.
+ *
+ * This work is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <netinet/in.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <errno.h>
+#include <unistd.h>
+#include "tevent.h"
+#include "talloc.h"
+
+/**
+ * @brief Helper function to get a useful unix error from tevent_req
+ */
+
+static bool tevent_req_is_unix_error(struct tevent_req *req, int *perrno)
+{
+	enum tevent_req_state state;
+	uint64_t err;
+
+	if (!tevent_req_is_error(req, &state, &err)) {
+		return false;
+	}
+	switch (state) {
+	case TEVENT_REQ_TIMED_OUT:
+		*perrno = ETIMEDOUT;
+		break;
+	case TEVENT_REQ_NO_MEMORY:
+		*perrno = ENOMEM;
+		break;
+	case TEVENT_REQ_USER_ERROR:
+		*perrno = err;
+		break;
+	default:
+		*perrno = EINVAL;
+		break;
+	}
+	return true;
+}
+
+/**
+ * @brief Wrapper around accept(2)
+ */
+
+struct accept_state {
+	struct tevent_fd *fde;
+	int listen_sock;
+	socklen_t addrlen;
+	struct sockaddr_storage addr;
+	int sock;
+};
+
+static void accept_handler(struct tevent_context *ev, struct tevent_fd *fde,
+			   uint16_t flags, void *private_data);
+
+static struct tevent_req *accept_send(TALLOC_CTX *mem_ctx,
+				      struct tevent_context *ev,
+				      int listen_sock)
+{
+	struct tevent_req *req;
+	struct accept_state *state;
+
+	req = tevent_req_create(mem_ctx, &state, struct accept_state);
+	if (req == NULL) {
+		return NULL;
+	}
+
+	state->listen_sock = listen_sock;
+
+	state->fde = tevent_add_fd(ev, state, listen_sock, TEVENT_FD_READ,
+				   accept_handler, req);
+	if (tevent_req_nomem(state->fde, req)) {
+		return tevent_req_post(req, ev);
+	}
+	return req;
+}
+
+static void accept_handler(struct tevent_context *ev, struct tevent_fd *fde,
+			   uint16_t flags, void *private_data)
+{
+	struct tevent_req *req = talloc_get_type_abort(
+		private_data, struct tevent_req);
+	struct accept_state *state = tevent_req_data(req, struct accept_state);
+	int ret;
+
+	TALLOC_FREE(state->fde);
+
+	if ((flags & TEVENT_FD_READ) == 0) {
+		tevent_req_error(req, EIO);
+		return;
+	}
+	state->addrlen = sizeof(state->addr);
+
+	ret = accept(state->listen_sock,
+			(struct sockaddr *)&state->addr,
+			&state->addrlen);
+	if (ret == -1) {
+		tevent_req_error(req, errno);
+		return;
+	}
+	smb_set_close_on_exec(ret);
+	state->sock = ret;
+	tevent_req_done(req);
+}
+
+static int accept_recv(struct tevent_req *req, struct sockaddr *paddr,
+		       socklen_t *paddrlen, int *perr)
+{
+	struct accept_state *state = tevent_req_data(req, struct accept_state);
+	int err;
+
+	if (tevent_req_is_unix_error(req, &err)) {
+		if (perr != NULL) {
+			*perr = err;
+		}
+		return -1;
+	}
+	if (paddr != NULL) {
+		memcpy(paddr, &state->addr, state->addrlen);
+	}
+	if (paddrlen != NULL) {
+		*paddrlen = state->addrlen;
+	}
+	return state->sock;
+}
+
+/**
+ * @brief Wrapper around read(2)
+ */
+
+struct read_state {
+	struct tevent_fd *fde;
+	int fd;
+	void *buf;
+	size_t count;
+
+	ssize_t nread;
+};
+
+static void read_handler(struct tevent_context *ev, struct tevent_fd *fde,
+			 uint16_t flags, void *private_data);
+
+static struct tevent_req *read_send(TALLOC_CTX *mem_ctx,
+				    struct tevent_context *ev,
+				    int fd, void *buf, size_t count)
+{
+	struct tevent_req *req;
+	struct read_state *state;
+
+	req = tevent_req_create(mem_ctx, &state, struct read_state);
+	if (req == NULL) {
+		return NULL;
+	}
+
+	state->fd = fd;
+	state->buf = buf;
+	state->count = count;
+
+	state->fde = tevent_add_fd(ev, state, fd, TEVENT_FD_READ,
+				   read_handler, req);
+	if (tevent_req_nomem(state->fde, req)) {
+		return tevent_req_post(req, ev);
+	}
+	return req;
+}
+
+static void read_handler(struct tevent_context *ev, struct tevent_fd *fde,
+			 uint16_t flags, void *private_data)
+{
+	struct tevent_req *req = talloc_get_type_abort(
+		private_data, struct tevent_req);
+	struct read_state *state = tevent_req_data(req, struct read_state);
+	ssize_t ret;
+
+	TALLOC_FREE(state->fde);
+
+	if ((flags & TEVENT_FD_READ) == 0) {
+		tevent_req_error(req, EIO);
+		return;
+	}
+
+	ret = read(state->fd, state->buf, state->count);
+	if (ret == -1) {
+		tevent_req_error(req, errno);
+		return;
+	}
+	state->nread = ret;
+	tevent_req_done(req);
+}
+
+static ssize_t read_recv(struct tevent_req *req, int *perr)
+{
+	struct read_state *state = tevent_req_data(req, struct read_state);
+	int err;
+
+	if (tevent_req_is_unix_error(req, &err)) {
+		if (perr != NULL) {
+			*perr = err;
+		}
+		return -1;
+	}
+	return state->nread;
+}
+
+/**
+ * @brief Wrapper around write(2)
+ */
+
+struct write_state {
+	struct tevent_fd *fde;
+	int fd;
+	const void *buf;
+	size_t count;
+
+	ssize_t nwritten;
+};
+
+static void write_handler(struct tevent_context *ev, struct tevent_fd *fde,
+			 uint16_t flags, void *private_data);
+
+static struct tevent_req *write_send(TALLOC_CTX *mem_ctx,
+				    struct tevent_context *ev,
+				    int fd, const void *buf, size_t count)
+{
+	struct tevent_req *req;
+	struct write_state *state;
+
+	req = tevent_req_create(mem_ctx, &state, struct write_state);
+	if (req == NULL) {
+		return NULL;
+	}
+
+	state->fd = fd;
+	state->buf = buf;
+	state->count = count;
+
+	state->fde = tevent_add_fd(ev, state, fd, TEVENT_FD_WRITE,
+				   write_handler, req);
+	if (tevent_req_nomem(state->fde, req)) {
+		return tevent_req_post(req, ev);
+	}
+	return req;
+}
+
+static void write_handler(struct tevent_context *ev, struct tevent_fd *fde,
+			 uint16_t flags, void *private_data)
+{
+	struct tevent_req *req = talloc_get_type_abort(
+		private_data, struct tevent_req);
+	struct write_state *state = tevent_req_data(req, struct write_state);
+	ssize_t ret;
+
+	TALLOC_FREE(state->fde);
+
+	if ((flags & TEVENT_FD_WRITE) == 0) {
+		tevent_req_error(req, EIO);
+		return;
+	}
+
+	ret = write(state->fd, state->buf, state->count);
+	if (ret == -1) {
+		tevent_req_error(req, errno);
+		return;
+	}
+	state->nwritten = ret;
+	tevent_req_done(req);
+}
+
+static ssize_t write_recv(struct tevent_req *req, int *perr)
+{
+	struct write_state *state = tevent_req_data(req, struct write_state);
+	int err;
+
+	if (tevent_req_is_unix_error(req, &err)) {
+		if (perr != NULL) {
+			*perr = err;
+		}
+		return -1;
+	}
+	return state->nwritten;
+}
+
+/**
+ * @brief Wrapper function that deals with short writes
+ */
+
+struct writeall_state {
+	struct tevent_context *ev;
+	int fd;
+	const void *buf;
+	size_t count;
+	size_t nwritten;
+};
+
+static void writeall_done(struct tevent_req *subreq);
+
+static struct tevent_req *writeall_send(TALLOC_CTX *mem_ctx,
+					struct tevent_context *ev,
+					int fd, const void *buf, size_t count)
+{
+	struct tevent_req *req, *subreq;
+	struct writeall_state *state;
+
+	req = tevent_req_create(mem_ctx, &state, struct writeall_state);
+	if (req == NULL) {
+		return NULL;
+	}
+	state->ev = ev;
+	state->fd = fd;
+	state->buf = buf;
+	state->count = count;
+	state->nwritten = 0;
+
+	subreq = write_send(state, state->ev, state->fd,
+			    ((char *)state->buf)+state->nwritten,
+			    state->count - state->nwritten);
+	if (tevent_req_nomem(subreq, req)) {
+		return tevent_req_post(req, ev);
+	}
+	tevent_req_set_callback(subreq, writeall_done, req);
+	return req;
+}
+
+static void writeall_done(struct tevent_req *subreq)
+{
+	struct tevent_req *req = tevent_req_callback_data(
+		subreq, struct tevent_req);
+	struct writeall_state *state = tevent_req_data(
+		req, struct writeall_state);
+	ssize_t nwritten;
+	int err = 0;
+
+	nwritten = write_recv(subreq, &err);
+	TALLOC_FREE(subreq);
+	if (nwritten == -1) {
+		tevent_req_error(req, err);
+		return;
+	}
+
+	state->nwritten += nwritten;
+
+	if (state->nwritten < state->count) {
+		subreq = write_send(state, state->ev, state->fd,
+				    ((char *)state->buf)+state->nwritten,
+				    state->count - state->nwritten);
+		if (tevent_req_nomem(subreq, req)) {
+			return;
+		}
+		tevent_req_set_callback(subreq, writeall_done, req);
+		return;
+	}
+	tevent_req_done(req);
+}
+
+static ssize_t writeall_recv(struct tevent_req *req, int *perr)
+{
+	struct writeall_state *state = tevent_req_data(
+		req, struct writeall_state);
+	int err;
+
+	if (tevent_req_is_unix_error(req, &err)) {
+		if (perr != NULL) {
+			*perr = err;
+		}
+		return -1;
+	}
+	return state->nwritten;
+}
+
+/**
+ * @brief Async echo handler code dealing with one client
+ */
+
+struct echo_state {
+	struct tevent_context *ev;
+	int fd;
+	uint8_t *buf;
+};
+
+static int echo_state_destructor(struct echo_state *s);
+static void echo_read_done(struct tevent_req *subreq);
+static void echo_writeall_done(struct tevent_req *subreq);
+
+static struct tevent_req *echo_send(TALLOC_CTX *mem_ctx,
+				    struct tevent_context *ev,
+				    int fd, size_t bufsize)
+{
+	struct tevent_req *req, *subreq;
+	struct echo_state *state;
+
+	req = tevent_req_create(mem_ctx, &state, struct echo_state);
+	if (req == NULL) {
+		return NULL;
+	}
+	state->ev = ev;
+	state->fd = fd;
+
+	talloc_set_destructor(state, echo_state_destructor);
+
+	state->buf = talloc_array(state, uint8_t, bufsize);
+	if (tevent_req_nomem(state->buf, req)) {
+		return tevent_req_post(req, ev);
+	}
+
+	subreq = read_send(state, state->ev, state->fd,
+			   state->buf, talloc_get_size(state->buf));
+	if (tevent_req_nomem(subreq, req)) {
+		return tevent_req_post(req, ev);
+	}
+	tevent_req_set_callback(subreq, echo_read_done, req);
+	return req;
+}
+
+static int echo_state_destructor(struct echo_state *s)
+{
+	if (s->fd != -1) {
+		printf("Closing client fd %d\n", s->fd);
+		close(s->fd);
+		s->fd = -1;
+	}
+	return 0;
+}
+
+static void echo_read_done(struct tevent_req *subreq)
+{
+	struct tevent_req *req = tevent_req_callback_data(
+		subreq, struct tevent_req);
+	struct echo_state *state = tevent_req_data(
+		req, struct echo_state);
+	ssize_t nread;
+	int err;
+
+	nread = read_recv(subreq, &err);
+	TALLOC_FREE(subreq);
+	if (nread == -1) {
+		tevent_req_error(req, err);
+		return;
+	}
+	if (nread == 0) {
+		tevent_req_done(req);
+		return;
+	}
+
+	subreq = writeall_send(state, state->ev, state->fd, state->buf, nread);
+	if (tevent_req_nomem(subreq, req)) {
+		return;
+	}
+	tevent_req_set_callback(subreq, echo_writeall_done, req);
+}
+
+static void echo_writeall_done(struct tevent_req *subreq)
+{
+	struct tevent_req *req = tevent_req_callback_data(
+		subreq, struct tevent_req);
+	struct echo_state *state = tevent_req_data(
+		req, struct echo_state);
+	ssize_t nwritten;
+	int err;
+
+	nwritten = writeall_recv(subreq, &err);
+	TALLOC_FREE(subreq);
+	if (nwritten == -1) {
+		if (err == EPIPE) {
+			tevent_req_done(req);
+			return;
+		}
+		tevent_req_error(req, err);
+		return;
+	}
+
+	subreq = read_send(state, state->ev, state->fd,
+			   state->buf, talloc_get_size(state->buf));
+	if (tevent_req_nomem(subreq, req)) {
+		return;
+	}
+	tevent_req_set_callback(subreq, echo_read_done, req);
+}
+
+static bool echo_recv(struct tevent_req *req, int *perr)
+{
+	int err;
+
+	if (tevent_req_is_unix_error(req, &err)) {
+		*perr = err;
+		return false;
+	}
+	return true;
+}
+
+/**
+ * @brief Full echo handler code accepting and handling clients
+ */
+
+struct echo_server_state {
+	struct tevent_context *ev;
+	int listen_sock;
+};
+
+static void echo_server_accepted(struct tevent_req *subreq);
+static void echo_server_client_done(struct tevent_req *subreq);
+
+static struct tevent_req *echo_server_send(TALLOC_CTX *mem_ctx,
+					   struct tevent_context *ev,
+					   int listen_sock)
+{
+	struct tevent_req *req, *subreq;
+	struct echo_server_state *state;
+
+	req = tevent_req_create(mem_ctx, &state,
+				struct echo_server_state);
+	if (req == NULL) {
+		return NULL;
+	}
+	state->ev = ev;
+	state->listen_sock = listen_sock;
+
+	subreq = accept_send(state, state->ev, state->listen_sock);
+	if (tevent_req_nomem(subreq, req)) {
+		return tevent_req_post(req, ev);
+	}
+	tevent_req_set_callback(subreq, echo_server_accepted, req);
+	return req;
+}
+
+static void echo_server_accepted(struct tevent_req *subreq)
+{
+	struct tevent_req *req = tevent_req_callback_data(
+		subreq, struct tevent_req);
+	struct echo_server_state *state = tevent_req_data(
+		req, struct echo_server_state);
+	int sock, err;
+
+	sock = accept_recv(subreq, NULL, NULL, &err);
+	TALLOC_FREE(subreq);
+	if (sock == -1) {
+		tevent_req_error(req, err);
+		return;
+	}
+
+	printf("new client fd %d\n", sock);
+
+	subreq = echo_send(state, state->ev, sock, 100);
+	if (tevent_req_nomem(subreq, req)) {
+		return;
+	}
+	tevent_req_set_callback(subreq, echo_server_client_done, req);
+
+	subreq = accept_send(state, state->ev, state->listen_sock);
+	if (tevent_req_nomem(subreq, req)) {
+		return;
+	}
+	tevent_req_set_callback(subreq, echo_server_accepted, req);
+}
+
+static void echo_server_client_done(struct tevent_req *subreq)
+{
+	bool ret;
+	int err;
+
+	ret = echo_recv(subreq, &err);
+	TALLOC_FREE(subreq);
+
+	if (ret) {
+		printf("Client done\n");
+	} else {
+		printf("Client failed: %s\n", strerror(err));
+	}
+}
+
+static bool echo_server_recv(struct tevent_req *req, int *perr)
+{
+	int err;
+
+	if (tevent_req_is_unix_error(req, &err)) {
+		*perr = err;
+		return false;
+	}
+	return true;
+}
+
+int main(int argc, const char **argv)
+{
+	int ret, port, listen_sock, err;
+	struct tevent_context *ev;
+	struct sockaddr_in addr;
+	struct tevent_req *req;
+	bool result;
+
+	if (argc != 2) {
+		fprintf(stderr, "Usage: %s <port>\n", argv[0]);
+		exit(1);
+	}
+
+	port = atoi(argv[1]);
+
+	printf("listening on port %d\n", port);
+
+	listen_sock = socket(AF_INET, SOCK_STREAM, 0);
+
+	if (listen_sock == -1) {
+		perror("socket() failed");
+		exit(1);
+	}
+
+	addr = (struct sockaddr_in) {
+		.sin_family = AF_INET,
+		.sin_port = htons(port)
+	};
+
+	ret = bind(listen_sock, (struct sockaddr *)&addr, sizeof(addr));
+	if (ret == -1) {
+		perror("bind() failed");
+		exit(1);
+	}
+
+	ret = listen(listen_sock, 5);
+	if (ret == -1) {
+		perror("listen() failed");
+		exit(1);
+	}
+
+	ev = tevent_context_init(NULL);
+	if (ev == NULL) {
+		fprintf(stderr, "tevent_context_init failed\n");
+		exit(1);
+	}
+
+	req = echo_server_send(ev, ev, listen_sock);
+	if (req == NULL) {
+		fprintf(stderr, "echo_server_send failed\n");
+		exit(1);
+	}
+
+	if (!tevent_req_poll(req, ev)) {
+		perror("tevent_req_poll() failed");
+		exit(1);
+	}
+
+	result = echo_server_recv(req, &err);
+	TALLOC_FREE(req);
+	if (!result) {
+		fprintf(stderr, "echo_server failed: %s\n", strerror(err));
+		exit(1);
+	}
+
+	return 0;
+}
diff --git a/lib/tevent/pytevent.c b/lib/tevent/pytevent.c
new file mode 100644
index 0000000..62dfe24
--- /dev/null
+++ b/lib/tevent/pytevent.c
@@ -0,0 +1,945 @@
+/*
+   Unix SMB/CIFS implementation.
+   Python bindings for tevent
+
+   Copyright (C) Jelmer Vernooij 2010
+
+     ** NOTE! The following LGPL license applies to the tevent
+     ** library. This does NOT imply that all of Samba is released
+     ** under the LGPL
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 3 of the License, or (at your option) any later version.
+
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with this library; if not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <Python.h>
+#include "replace.h"
+#include <tevent.h>
+
+#if PY_MAJOR_VERSION >= 3
+#define PyLong_FromLong PyLong_FromLong
+#endif
+
+/* discard signature of 'func' in favour of 'target_sig' */
+#define PY_DISCARD_FUNC_SIG(target_sig, func) (target_sig)(void(*)(void))func
+
+void init_tevent(void);
+
+typedef struct {
+	PyObject_HEAD
+	struct tevent_context *ev;
+} TeventContext_Object;
+
+typedef struct {
+	PyObject_HEAD
+	struct tevent_queue *queue;
+} TeventQueue_Object;
+
+typedef struct {
+	PyObject_HEAD
+	struct tevent_req *req;
+} TeventReq_Object;
+
+typedef struct {
+	PyObject_HEAD
+	struct tevent_signal *signal;
+} TeventSignal_Object;
+
+typedef struct {
+	PyObject_HEAD
+	struct tevent_timer *timer;
+	PyObject *callback;
+} TeventTimer_Object;
+
+typedef struct {
+	PyObject_HEAD
+	struct tevent_fd *fd;
+} TeventFd_Object;
+
+static PyTypeObject TeventContext_Type;
+static PyTypeObject TeventReq_Type;
+static PyTypeObject TeventQueue_Type;
+static PyTypeObject TeventSignal_Type;
+static PyTypeObject TeventTimer_Type;
+static PyTypeObject TeventFd_Type;
+
+static int py_context_init(struct tevent_context *ev)
+{
+	/* FIXME */
+	return 0;
+}
+
+static struct tevent_fd *py_add_fd(struct tevent_context *ev,
+				    TALLOC_CTX *mem_ctx,
+				    int fd, uint16_t flags,
+				    tevent_fd_handler_t handler,
+				    void *private_data,
+				    const char *handler_name,
+				    const char *location)
+{
+	/* FIXME */
+	return NULL;
+}
+
+static void py_set_fd_close_fn(struct tevent_fd *fde,
+				tevent_fd_close_fn_t close_fn)
+{
+	/* FIXME */
+}
+
+static uint16_t py_get_fd_flags(struct tevent_fd *fde)
+{
+	/* FIXME */
+	return 0;
+}
+
+static void py_set_fd_flags(struct tevent_fd *fde, uint16_t flags)
+{
+	/* FIXME */
+}
+
+/* timed_event functions */
+static struct tevent_timer *py_add_timer(struct tevent_context *ev,
+					  TALLOC_CTX *mem_ctx,
+					  struct timeval next_event,
+					  tevent_timer_handler_t handler,
+					  void *private_data,
+					  const char *handler_name,
+					  const char *location)
+{
+	/* FIXME */
+	return NULL;
+}
+
+/* immediate event functions */
+static void py_schedule_immediate(struct tevent_immediate *im,
+				   struct tevent_context *ev,
+				   tevent_immediate_handler_t handler,
+				   void *private_data,
+				   const char *handler_name,
+				   const char *location)
+{
+	/* FIXME */
+}
+
+/* signal functions */
+static struct tevent_signal *py_add_signal(struct tevent_context *ev,
+					    TALLOC_CTX *mem_ctx,
+					    int signum, int sa_flags,
+					    tevent_signal_handler_t handler,
+					    void *private_data,
+					    const char *handler_name,
+					    const char *location)
+{
+	/* FIXME */
+	return NULL;
+}
+
+/* loop functions */
+static int py_loop_once(struct tevent_context *ev, const char *location)
+{
+	/* FIXME */
+	return 0;
+}
+
+static int py_loop_wait(struct tevent_context *ev, const char *location)
+{
+	/* FIXME */
+	return 0;
+}
+
+const static struct tevent_ops py_tevent_ops = {
+	.context_init = py_context_init,
+	.add_fd = py_add_fd,
+	.set_fd_close_fn = py_set_fd_close_fn,
+	.get_fd_flags = py_get_fd_flags,
+	.set_fd_flags = py_set_fd_flags,
+	.add_timer = py_add_timer,
+	.schedule_immediate = py_schedule_immediate,
+	.add_signal = py_add_signal,
+	.loop_wait = py_loop_wait,
+	.loop_once = py_loop_once,
+};
+
+static PyObject *py_register_backend(PyObject *self, PyObject *args)
+{
+	PyObject *name, *py_backend;
+
+	if (!PyArg_ParseTuple(args, "O", &py_backend))
+		return NULL;
+
+	name = PyObject_GetAttrString(py_backend, "name");
+	if (name == NULL) {
+		PyErr_SetNone(PyExc_AttributeError);
+		return NULL;
+	}
+
+	if (!PyUnicode_Check(name)) {
+		PyErr_SetNone(PyExc_TypeError);
+		Py_DECREF(name);
+		return NULL;
+	}
+
+	if (!tevent_register_backend(PyUnicode_AsUTF8(name), &py_tevent_ops)) { /* FIXME: What to do with backend */
+		PyErr_SetNone(PyExc_RuntimeError);
+		Py_DECREF(name);
+		return NULL;
+	}
+
+	Py_DECREF(name);
+
+	Py_RETURN_NONE;
+}
+
+static PyObject *py_tevent_context_reinitialise(TeventContext_Object *self,
+		PyObject *Py_UNUSED(ignored))
+{
+	int ret = tevent_re_initialise(self->ev);
+	if (ret != 0) {
+		PyErr_SetNone(PyExc_RuntimeError);
+		return NULL;
+	}
+	Py_RETURN_NONE;
+}
+
+static PyObject *py_tevent_queue_stop(TeventQueue_Object *self,
+		PyObject *Py_UNUSED(ignored))
+{
+	tevent_queue_stop(self->queue);
+	Py_RETURN_NONE;
+}
+
+static PyObject *py_tevent_queue_start(TeventQueue_Object *self,
+		PyObject *Py_UNUSED(ignored))
+{
+	tevent_queue_start(self->queue);
+	Py_RETURN_NONE;
+}
+
+static void py_queue_trigger(struct tevent_req *req, void *private_data)
+{
+	PyObject *callback = private_data, *ret;
+
+	ret = PyObject_CallFunction(callback, discard_const_p(char, ""));
+	Py_XDECREF(ret);
+}
+
+static PyObject *py_tevent_queue_add(TeventQueue_Object *self, PyObject *args)
+{
+	TeventContext_Object *py_ev;
+	TeventReq_Object *py_req;
+	PyObject *trigger;
+	bool ret;
+
+	if (!PyArg_ParseTuple(args, "O!O!O", 
+						  &TeventContext_Type, &py_ev,
+						  &TeventReq_Type, &py_req,
+						  &trigger))
+		return NULL;
+
+	Py_INCREF(trigger);
+
+	ret = tevent_queue_add(self->queue, py_ev->ev, py_req->req,
+						   py_queue_trigger, trigger);
+	if (!ret) {
+		PyErr_SetString(PyExc_RuntimeError, "queue add failed");
+		Py_DECREF(trigger);
+		return NULL;
+	}
+
+	Py_RETURN_NONE;
+}
+
+static PyMethodDef py_tevent_queue_methods[] = {
+	{ "stop", (PyCFunction)py_tevent_queue_stop,
+		METH_NOARGS,
+		"S.stop()" },
+	{ "start", (PyCFunction)py_tevent_queue_start,
+		METH_NOARGS,
+		"S.start()" },
+	{ "add", (PyCFunction)py_tevent_queue_add, METH_VARARGS,
+		"S.add(ctx, req, trigger, baton)" },
+	{0},
+};
+
+static PyObject *py_tevent_context_wakeup_send(PyObject *self, PyObject *args)
+{
+	/* FIXME */
+
+	Py_RETURN_NONE;
+}
+
+static PyObject *py_tevent_context_loop_wait(TeventContext_Object *self,
+		PyObject *Py_UNUSED(ignored))
+{
+	if (tevent_loop_wait(self->ev) != 0) {
+		PyErr_SetNone(PyExc_RuntimeError);
+		return NULL;
+	}
+	Py_RETURN_NONE;
+}
+
+static PyObject *py_tevent_context_loop_once(TeventContext_Object *self,
+		PyObject *Py_UNUSED(ignored))
+{
+	if (tevent_loop_once(self->ev) != 0) {
+		PyErr_SetNone(PyExc_RuntimeError);
+		return NULL;
+	}
+	Py_RETURN_NONE;
+}
+
+static void py_tevent_signal_handler(struct tevent_context *ev,
+					struct tevent_signal *se,
+					int signum,
+					int count,
+					void *siginfo,
+					void *private_data)
+{
+	PyObject *callback = (PyObject *)private_data, *ret;
+
+	ret = PyObject_CallFunction(callback, discard_const_p(char, "ii"), signum, count);
+	Py_XDECREF(ret);
+}
+
+static void py_tevent_signal_dealloc(TeventSignal_Object *self)
+{
+	talloc_free(self->signal);
+	PyObject_Del(self);
+}
+
+static PyTypeObject TeventSignal_Type = {
+	.tp_name = "tevent.Signal",
+	.tp_basicsize = sizeof(TeventSignal_Object),
+	.tp_dealloc = (destructor)py_tevent_signal_dealloc,
+	.tp_flags = Py_TPFLAGS_DEFAULT,
+};
+
+static PyObject *py_tevent_context_add_signal(TeventContext_Object *self, PyObject *args)
+{
+	int signum, sa_flags;
+	PyObject *handler;
+	struct tevent_signal *sig;
+	TeventSignal_Object *ret;
+
+	if (!PyArg_ParseTuple(args, "iiO", &signum, &sa_flags, &handler))
+		return NULL;
+
+	Py_INCREF(handler);
+	sig = tevent_add_signal(self->ev, NULL, signum, sa_flags,
+							py_tevent_signal_handler, handler);
+
+	ret = PyObject_New(TeventSignal_Object, &TeventSignal_Type);
+	if (ret == NULL) {
+		PyErr_NoMemory();
+		talloc_free(sig);
+		return NULL;
+	}
+
+	ret->signal = sig;
+
+	return (PyObject *)ret;
+}
+
+static void py_timer_handler(struct tevent_context *ev,
+				       struct tevent_timer *te,
+				       struct timeval current_time,
+				       void *private_data)
+{
+	TeventTimer_Object *self = private_data;
+	PyObject *ret;
+
+	ret = PyObject_CallFunction(self->callback, discard_const_p(char, "l"), te);
+	if (ret == NULL) {
+		/* No Python stack to propagate exception to; just print traceback */
+		PyErr_PrintEx(0);
+	}
+	Py_XDECREF(ret);
+}
+
+static void py_tevent_timer_dealloc(TeventTimer_Object *self)
+{
+	if (self->timer) {
+		talloc_free(self->timer);
+	}
+	Py_DECREF(self->callback);
+	PyObject_Del(self);
+}
+
+static int py_tevent_timer_traverse(TeventTimer_Object *self, visitproc visit, void *arg)
+{
+	Py_VISIT(self->callback);
+	return 0;
+}
+
+static PyObject* py_tevent_timer_get_active(TeventTimer_Object *self,
+			PyObject *Py_UNUSED(ignored))
+{
+	return PyBool_FromLong(self->timer != NULL);
+}
+
+struct PyGetSetDef py_tevent_timer_getset[] = {
+	{
+		.name = discard_const_p(char, "active"),
+		.get = (getter)py_tevent_timer_get_active,
+		.doc = discard_const_p(char, "true if the timer is scheduled to run"),
+	},
+	{0},
+};
+
+static PyTypeObject TeventTimer_Type = {
+	.tp_name = "tevent.Timer",
+	.tp_basicsize = sizeof(TeventTimer_Object),
+	.tp_dealloc = (destructor)py_tevent_timer_dealloc,
+	.tp_traverse = (traverseproc)py_tevent_timer_traverse,
+	.tp_getset = py_tevent_timer_getset,
+	.tp_flags = Py_TPFLAGS_DEFAULT,
+};
+
+struct TeventTimer_Object_ref {
+	TeventTimer_Object *obj;
+};
+
+static int TeventTimer_Object_ref_destructor(struct TeventTimer_Object_ref *ref)
+{
+	ref->obj->timer = NULL;
+	Py_DECREF(ref->obj);
+	return 0;
+}
+
+static PyObject *py_tevent_context_add_timer_internal(TeventContext_Object *self,
+                                                      struct timeval next_event,
+                                                      PyObject *callback)
+{
+	/* Ownership notes:
+	 *
+	 * There are 5 pieces in play; two tevent contexts and 3 Python objects:
+	 * - The tevent timer
+	 * - The tevent context
+	 * - The Python context -- "self"
+	 * - The Python timer (TeventTimer_Object) -- "ret"
+	 * - The Python callback function -- "callback"
+	 *
+	 * We only use the Python context for getting the tevent context,
+	 * afterwards it can be destroyed.
+	 *
+	 * The tevent context owns the tevent timer.
+	 *
+	 * The tevent timer holds a reference to the Python timer, so the Python
+	 * timer must always outlive the tevent timer.
+	 * The Python timer has a pointer to the tevent timer; a destructor is
+	 * used to set this to NULL when the tevent timer is deallocated.
+	 *
+	 * The tevent timer can be deallocated in these cases:
+	 *  1) when the context is destroyed
+	 *  2) after the event fires
+	 *  Posssibly, API might be added to cancel (free the tevent timer).
+	 *
+	 * The Python timer holds a reference to the callback.
+	 */
+	TeventTimer_Object *ret;
+	struct TeventTimer_Object_ref *ref;
+
+	ret = PyObject_New(TeventTimer_Object, &TeventTimer_Type);
+	if (ret == NULL) {
+		PyErr_NoMemory();
+		return NULL;
+	}
+	Py_INCREF(callback);
+	ret->callback = callback;
+	ret->timer = tevent_add_timer(self->ev, NULL, next_event, py_timer_handler,
+	                              ret);
+	if (ret->timer == NULL) {
+		Py_DECREF(ret);
+		PyErr_SetString(PyExc_RuntimeError, "Could not initialize timer");
+		return NULL;
+	}
+	ref = talloc(ret->timer, struct TeventTimer_Object_ref);
+	if (ref == NULL) {
+		talloc_free(ret->timer);
+		Py_DECREF(ret);
+		PyErr_SetString(PyExc_RuntimeError, "Could not initialize timer");
+		return NULL;
+	}
+	Py_INCREF(ret);
+	ref->obj = ret;
+
+	talloc_set_destructor(ref, TeventTimer_Object_ref_destructor);
+
+	return (PyObject *)ret;
+}
+
+static PyObject *py_tevent_context_add_timer(TeventContext_Object *self, PyObject *args)
+{
+	struct timeval next_event;
+	PyObject *callback;
+	double secs, usecs;
+	if (!PyArg_ParseTuple(args, "dO", &secs, &callback)){
+		return NULL;
+	}
+	next_event.tv_sec = secs;
+	usecs = (secs - next_event.tv_sec) * 1000000.0;
+	next_event.tv_usec = usecs;
+	return py_tevent_context_add_timer_internal(self, next_event, callback);
+}
+
+static PyObject *py_tevent_context_add_timer_offset(TeventContext_Object *self, PyObject *args)
+{
+	struct timeval next_event;
+	double offset;
+	int seconds;
+	PyObject *callback;
+	if (!PyArg_ParseTuple(args, "dO", &offset, &callback))
+		return NULL;
+
+	seconds = offset;
+	offset -= seconds;
+	next_event = tevent_timeval_current_ofs(seconds, (int)(offset*1000000));
+	return py_tevent_context_add_timer_internal(self, next_event, callback);
+}
+
+static void py_fd_handler(struct tevent_context *ev,
+				    struct tevent_fd *fde,
+				    uint16_t flags,
+				    void *private_data)
+{
+	PyObject *callback = private_data, *ret;
+
+	ret = PyObject_CallFunction(callback, discard_const_p(char, "i"), flags);
+	Py_XDECREF(ret);
+}
+
+static void py_tevent_fp_dealloc(TeventFd_Object *self)
+{
+	talloc_free(self->fd);
+	PyObject_Del(self);
+}
+
+static PyTypeObject TeventFd_Type = {
+	.tp_name = "tevent.Fd",
+	.tp_basicsize = sizeof(TeventFd_Object),
+	.tp_dealloc = (destructor)py_tevent_fp_dealloc,
+	.tp_flags = Py_TPFLAGS_DEFAULT,
+};
+
+static PyObject *py_tevent_context_add_fd(TeventContext_Object *self, PyObject *args)
+{
+	int fd, flags;
+	PyObject *handler;
+	struct tevent_fd *tfd;
+	TeventFd_Object *ret;
+
+	if (!PyArg_ParseTuple(args, "iiO", &fd, &flags, &handler))
+		return NULL;
+
+	tfd = tevent_add_fd(self->ev, NULL, fd, flags, py_fd_handler, handler);
+	if (tfd == NULL) {
+		PyErr_SetNone(PyExc_RuntimeError);
+		return NULL;
+	}
+
+	ret = PyObject_New(TeventFd_Object, &TeventFd_Type);
+	if (ret == NULL) {
+		talloc_free(tfd);
+		return NULL;
+	}
+	ret->fd = tfd;
+
+	return (PyObject *)ret;
+}
+
+static PyMethodDef py_tevent_context_methods[] = {
+	{ "reinitialise", (PyCFunction)py_tevent_context_reinitialise,
+		METH_NOARGS,
+		"S.reinitialise()" },
+	{ "wakeup_send", (PyCFunction)py_tevent_context_wakeup_send, 
+		METH_VARARGS, "S.wakeup_send(wakeup_time) -> req" },
+	{ "loop_wait", (PyCFunction)py_tevent_context_loop_wait,
+		METH_NOARGS, "S.loop_wait()" },
+	{ "loop_once", (PyCFunction)py_tevent_context_loop_once,
+		METH_NOARGS, "S.loop_once()" },
+	{ "add_signal", (PyCFunction)py_tevent_context_add_signal,
+		METH_VARARGS, "S.add_signal(signum, sa_flags, handler) -> signal" },
+	{ "add_timer", (PyCFunction)py_tevent_context_add_timer,
+		METH_VARARGS, "S.add_timer(next_event, handler) -> timer" },
+	{ "add_timer_offset", (PyCFunction)py_tevent_context_add_timer_offset,
+		METH_VARARGS, "S.add_timer_offset(offset_seconds, handler) -> timer" },
+	{ "add_fd", (PyCFunction)py_tevent_context_add_fd, 
+		METH_VARARGS, "S.add_fd(fd, flags, handler) -> fd" },
+	{0},
+};
+
+static PyObject *py_tevent_req_wakeup_recv(PyObject *self,
+		PyObject *Py_UNUSED(ignored))
+{
+	/* FIXME */
+	Py_RETURN_NONE;
+}
+
+static PyObject *py_tevent_req_received(PyObject *self,
+		PyObject *Py_UNUSED(ignored))
+{
+	/* FIXME */
+	Py_RETURN_NONE;
+}
+
+static PyObject *py_tevent_req_is_error(PyObject *self,
+		PyObject *Py_UNUSED(ignored))
+{
+	/* FIXME */
+	Py_RETURN_NONE;
+}
+
+static PyObject *py_tevent_req_poll(PyObject *self,
+		PyObject *Py_UNUSED(ignored))
+{
+	/* FIXME */
+	Py_RETURN_NONE;
+}
+
+static PyObject *py_tevent_req_is_in_progress(PyObject *self,
+		PyObject *Py_UNUSED(ignored))
+{
+	/* FIXME */
+	Py_RETURN_NONE;
+}
+
+static PyGetSetDef py_tevent_req_getsetters[] = {
+	{
+		.name = discard_const_p(char, "in_progress"),
+		.get = (getter)py_tevent_req_is_in_progress,
+		.doc = discard_const_p(char, "Whether the request is in progress"),
+	},
+	{0}
+};
+
+static PyObject *py_tevent_req_post(PyObject *self, PyObject *args)
+{
+	/* FIXME */
+	Py_RETURN_NONE;
+}
+
+static PyObject *py_tevent_req_set_error(PyObject *self, PyObject *args)
+{
+	/* FIXME */
+	Py_RETURN_NONE;
+}
+
+static PyObject *py_tevent_req_done(PyObject *self,
+		PyObject *Py_UNUSED(ignored))
+{
+	/* FIXME */
+	Py_RETURN_NONE;
+}
+
+static PyObject *py_tevent_req_notify_callback(PyObject *self,
+		PyObject *Py_UNUSED(ignored))
+{
+	/* FIXME */
+	Py_RETURN_NONE;
+}
+
+static PyObject *py_tevent_req_set_endtime(PyObject *self, PyObject *args)
+{
+	/* FIXME */
+	Py_RETURN_NONE;
+}
+
+static PyObject *py_tevent_req_cancel(TeventReq_Object *self,
+		PyObject *Py_UNUSED(ignored))
+{
+	if (!tevent_req_cancel(self->req)) {
+		PyErr_SetNone(PyExc_RuntimeError);
+		return NULL;
+	}
+	Py_RETURN_NONE;
+}
+
+static PyMethodDef py_tevent_req_methods[] = {
+	{ "wakeup_recv", (PyCFunction)py_tevent_req_wakeup_recv,
+		METH_NOARGS,
+		"Wakeup received" },
+	{ "received", (PyCFunction)py_tevent_req_received,
+		METH_NOARGS,
+		"Receive finished" },
+	{ "is_error", (PyCFunction)py_tevent_req_is_error, METH_NOARGS,
+		"is_error() -> (error, state)" },
+	{ "poll", (PyCFunction)py_tevent_req_poll, METH_VARARGS,
+		"poll(ctx)" },
+	{ "post", (PyCFunction)py_tevent_req_post, METH_VARARGS,
+		"post(ctx) -> req" },
+	{ "set_error", (PyCFunction)py_tevent_req_set_error, METH_VARARGS,
+		"set_error(error)" },
+	{ "done", (PyCFunction)py_tevent_req_done, METH_NOARGS,
+		"done()" },
+	{ "notify_callback", (PyCFunction)py_tevent_req_notify_callback,
+		METH_NOARGS, "notify_callback()" },
+	{ "set_endtime", (PyCFunction)py_tevent_req_set_endtime,
+		METH_VARARGS, "set_endtime(ctx, endtime)" },
+	{ "cancel", (PyCFunction)py_tevent_req_cancel,
+		METH_NOARGS, "cancel()" },
+	{0}
+};
+
+static void py_tevent_req_dealloc(TeventReq_Object *self)
+{
+	talloc_free(self->req);
+	PyObject_DEL(self);
+}
+
+static PyTypeObject TeventReq_Type = {
+	.tp_name = "tevent.Request",
+	.tp_basicsize = sizeof(TeventReq_Object),
+	.tp_methods = py_tevent_req_methods,
+	.tp_dealloc = (destructor)py_tevent_req_dealloc,
+	.tp_getset = py_tevent_req_getsetters,
+	/* FIXME: .tp_new = py_tevent_req_new, */
+};
+
+static PyObject *py_tevent_queue_get_length(TeventQueue_Object *self,
+			PyObject *Py_UNUSED(ignored))
+{
+	return PyLong_FromLong(tevent_queue_length(self->queue));
+}
+
+static PyGetSetDef py_tevent_queue_getsetters[] = {
+	{
+		.name = discard_const_p(char, "length"),
+		.get = (getter)py_tevent_queue_get_length,
+		.doc = discard_const_p(char, "The number of elements in the queue."),
+	},
+	{0},
+};
+
+static void py_tevent_queue_dealloc(TeventQueue_Object *self)
+{
+	talloc_free(self->queue);
+	PyObject_Del(self);
+}
+
+static PyTypeObject TeventQueue_Type = {
+	.tp_name = "tevent.Queue",
+	.tp_basicsize = sizeof(TeventQueue_Object),
+	.tp_dealloc = (destructor)py_tevent_queue_dealloc,
+	.tp_flags = Py_TPFLAGS_DEFAULT,
+	.tp_getset = py_tevent_queue_getsetters,
+	.tp_methods = py_tevent_queue_methods,
+};
+
+static PyObject *py_tevent_context_signal_support(PyObject *_self,
+		PyObject *Py_UNUSED(ignored))
+{
+	TeventContext_Object *self = (TeventContext_Object *)_self;
+	return PyBool_FromLong(tevent_signal_support(self->ev));
+}
+
+static PyGetSetDef py_tevent_context_getsetters[] = {
+	{
+		.name = discard_const_p(char, "signal_support"),
+		.get = PY_DISCARD_FUNC_SIG(getter,
+					   py_tevent_context_signal_support),
+		.doc = discard_const_p(char, "if this platform and tevent context support signal handling"),
+	},
+	{0}
+};
+
+static void py_tevent_context_dealloc(TeventContext_Object *self)
+{
+	talloc_free(self->ev);
+	PyObject_Del(self);
+}
+
+static PyObject *py_tevent_context_new(PyTypeObject *type, PyObject *args, PyObject *kwargs)
+{
+	const char * const kwnames[] = { "name", NULL };
+	char *name = NULL;
+	struct tevent_context *ev;
+	TeventContext_Object *ret;
+
+	if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|s", discard_const_p(char *, kwnames), &name))
+		return NULL;
+
+	if (name == NULL) {
+		ev = tevent_context_init(NULL);
+	} else {
+		ev = tevent_context_init_byname(NULL, name);
+	}
+
+	if (ev == NULL) {
+		PyErr_SetNone(PyExc_RuntimeError);
+		return NULL;
+	}
+
+	ret = PyObject_New(TeventContext_Object, type);
+	if (ret == NULL) {
+		PyErr_NoMemory();
+		talloc_free(ev);
+		return NULL;
+	}
+
+	ret->ev = ev;
+	return (PyObject *)ret;
+}
+
+static PyTypeObject TeventContext_Type = {
+	.tp_name = "tevent.Context",
+	.tp_new = py_tevent_context_new,
+	.tp_basicsize = sizeof(TeventContext_Object),
+	.tp_dealloc = (destructor)py_tevent_context_dealloc,
+	.tp_methods = py_tevent_context_methods,
+	.tp_getset = py_tevent_context_getsetters,
+	.tp_flags = Py_TPFLAGS_DEFAULT,
+};
+
+static PyObject *py_set_default_backend(PyObject *self, PyObject *args)
+{
+	char *backend_name;
+	if (!PyArg_ParseTuple(args, "s", &backend_name))
+		return NULL;
+
+	tevent_set_default_backend(backend_name);
+
+	Py_RETURN_NONE;
+}
+
+static PyObject *py_backend_list(PyObject *self,
+		PyObject *Py_UNUSED(ignored))
+{
+	PyObject *ret = NULL;
+	PyObject *string = NULL;
+	int i, result;
+	const char **backends = NULL;
+
+	ret = PyList_New(0);
+	if (ret == NULL) {
+		return NULL;
+	}
+
+	backends = tevent_backend_list(NULL);
+	if (backends == NULL) {
+		PyErr_SetNone(PyExc_RuntimeError);
+		goto err;
+	}
+	for (i = 0; backends[i]; i++) {
+		string = PyUnicode_FromString(backends[i]);
+		if (!string) {
+			goto err;
+		}
+		result = PyList_Append(ret, string);
+		if (result) {
+			goto err;
+		}
+		Py_DECREF(string);
+		string = NULL;
+	}
+
+	talloc_free(backends);
+
+	return ret;
+
+err:
+	Py_XDECREF(ret);
+	Py_XDECREF(string);
+	talloc_free(backends);
+	return NULL;
+}
+
+static PyMethodDef tevent_methods[] = {
+	{ "register_backend", (PyCFunction)py_register_backend, METH_VARARGS,
+		"register_backend(backend)" },
+	{ "set_default_backend", (PyCFunction)py_set_default_backend, 
+		METH_VARARGS, "set_default_backend(backend)" },
+	{ "backend_list", (PyCFunction)py_backend_list, 
+		METH_NOARGS, "backend_list() -> list" },
+	{0},
+};
+
+#define MODULE_DOC PyDoc_STR("Python wrapping of talloc-maintained objects.")
+
+#if PY_MAJOR_VERSION >= 3
+static struct PyModuleDef moduledef = {
+	PyModuleDef_HEAD_INIT,
+	.m_name = "_tevent",
+	.m_doc = MODULE_DOC,
+	.m_size = -1,
+	.m_methods = tevent_methods,
+};
+#endif
+
+PyObject * module_init(void);
+PyObject * module_init(void)
+{
+	PyObject *m;
+
+	if (PyType_Ready(&TeventContext_Type) < 0)
+		return NULL;
+
+	if (PyType_Ready(&TeventQueue_Type) < 0)
+		return NULL;
+
+	if (PyType_Ready(&TeventReq_Type) < 0)
+		return NULL;
+
+	if (PyType_Ready(&TeventSignal_Type) < 0)
+		return NULL;
+
+	if (PyType_Ready(&TeventTimer_Type) < 0)
+		return NULL;
+
+	if (PyType_Ready(&TeventFd_Type) < 0)
+		return NULL;
+
+#if PY_MAJOR_VERSION >= 3
+	m = PyModule_Create(&moduledef);
+#else
+	m = Py_InitModule3("_tevent", tevent_methods, MODULE_DOC);
+#endif
+	if (m == NULL)
+		return NULL;
+
+	Py_INCREF(&TeventContext_Type);
+	PyModule_AddObject(m, "Context", (PyObject *)&TeventContext_Type);
+
+	Py_INCREF(&TeventQueue_Type);
+	PyModule_AddObject(m, "Queue", (PyObject *)&TeventQueue_Type);
+
+	Py_INCREF(&TeventReq_Type);
+	PyModule_AddObject(m, "Request", (PyObject *)&TeventReq_Type);
+
+	Py_INCREF(&TeventSignal_Type);
+	PyModule_AddObject(m, "Signal", (PyObject *)&TeventSignal_Type);
+
+	Py_INCREF(&TeventTimer_Type);
+	PyModule_AddObject(m, "Timer", (PyObject *)&TeventTimer_Type);
+
+	Py_INCREF(&TeventFd_Type);
+	PyModule_AddObject(m, "Fd", (PyObject *)&TeventFd_Type);
+
+	PyModule_AddStringConstant(m, "__version__", PACKAGE_VERSION);
+
+	return m;
+}
+
+#if PY_MAJOR_VERSION >= 3
+PyMODINIT_FUNC PyInit__tevent(void);
+PyMODINIT_FUNC PyInit__tevent(void)
+{
+	return module_init();
+}
+#else
+void init_tevent(void);
+void init_tevent(void)
+{
+	module_init();
+}
+#endif
diff --git a/lib/tevent/test_req.c b/lib/tevent/test_req.c
new file mode 100644
index 0000000..2274a8c
--- /dev/null
+++ b/lib/tevent/test_req.c
@@ -0,0 +1,288 @@
+/*
+ * Unix SMB/CIFS implementation.
+ *
+ * testing of some tevent_req aspects
+ *
+ * Copyright (C) Volker Lendecke 2018
+ *
+ *   ** NOTE! The following LGPL license applies to the tevent
+ *   ** library. This does NOT imply that all of Samba is released
+ *   ** under the LGPL
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "includes.h"
+#include "tevent.h"
+#include "torture/torture.h"
+#include "torture/local/proto.h"
+#include "lib/util/tevent_unix.h"
+#include "lib/util/tevent_req_profile.h"
+#include "lib/util/time_basic.h"
+
+struct tevent_req_create_state {
+	uint8_t val;
+};
+
+static bool test_tevent_req_create(struct torture_context *tctx,
+				   const void *test_data)
+{
+	struct tevent_req *req;
+	struct tevent_req_create_state *state;
+
+	req = tevent_req_create(tctx, &state,
+				struct tevent_req_create_state);
+	torture_assert_not_null(tctx, req, "tevent_req_create failed\n");
+	torture_assert_int_equal(tctx, state->val, 0, "state not initialized\n");
+
+	TALLOC_FREE(req);
+
+	return true;
+}
+
+struct profile1_state {
+	uint8_t dummy;
+};
+
+static bool test_tevent_req_profile1(struct torture_context *tctx,
+				     const void *test_data)
+{
+	struct tevent_req *req;
+	struct profile1_state *state;
+	const struct tevent_req_profile *p1;
+	struct tevent_req_profile *p2;
+	struct timeval start, stop;
+	bool ok;
+	int cmp;
+
+	req = tevent_req_create(tctx, &state, struct profile1_state);
+	torture_assert_not_null(tctx, req, "tevent_req_create failed\n");
+
+	p1 = tevent_req_get_profile(req);
+	torture_assert(tctx, p1 == NULL, "profile not initialized to NULL\n");
+
+	ok = tevent_req_set_profile(req);
+	torture_assert(tctx, ok, "set_profile failed\n");
+
+	tevent_req_done(req);
+
+	p2 = tevent_req_move_profile(req, tctx);
+	torture_assert_not_null(tctx, p2, "get_profile failed\n");
+
+	/* Demonstrate sure "p2" outlives req */
+	TALLOC_FREE(req);
+
+	tevent_req_profile_get_start(p2, NULL, &start);
+	tevent_req_profile_get_stop(p2, NULL, &stop);
+
+	cmp = tevent_timeval_compare(&start, &stop);
+	torture_assert(tctx, cmp <= 0, "stop before start\n");
+
+	TALLOC_FREE(p2);
+
+	return true;
+}
+
+struct profile2_state {
+	uint8_t dummy;
+};
+
+static void profile2_done(struct tevent_req *subreq);
+
+static struct tevent_req *profile2_send(TALLOC_CTX *mem_ctx,
+					struct tevent_context *ev)
+{
+	struct tevent_req *req, *subreq;
+	struct profile2_state *state;
+	bool ok;
+
+	req = tevent_req_create(mem_ctx, &state, struct profile2_state);
+	if (req == NULL) {
+		return NULL;
+	}
+
+	ok = tevent_req_set_profile(req);
+	if (!ok) {
+		return tevent_req_post(req, ev);
+	}
+
+	subreq = tevent_wakeup_send(
+		state,
+		ev,
+		tevent_timeval_current_ofs(0, 1));
+	if (tevent_req_nomem(subreq, req)) {
+		return tevent_req_post(req, ev);
+	}
+	tevent_req_set_callback(subreq, profile2_done, req);
+
+	return req;
+}
+
+static void profile2_done(struct tevent_req *subreq)
+{
+	struct tevent_req *req = tevent_req_callback_data(
+		subreq, struct tevent_req);
+	bool ok;
+
+	ok = tevent_wakeup_recv(subreq);
+	if (!ok) {
+		tevent_req_oom(req);
+		return;
+	}
+	tevent_req_done(req);
+}
+
+static int profile2_recv(struct tevent_req *req,
+			  TALLOC_CTX *mem_ctx,
+			  struct tevent_req_profile **profile)
+{
+	int err;
+
+	if (tevent_req_is_unix_error(req, &err)) {
+		return err;
+	}
+
+	*profile = tevent_req_move_profile(req, mem_ctx);
+
+	return 0;
+}
+
+static bool test_tevent_req_profile2(struct torture_context *tctx,
+				     const void *test_data)
+{
+	struct tevent_context *ev;
+	struct tevent_req *req;
+	struct tevent_req_profile *p1 = NULL;
+	struct tevent_req_profile *p2 = NULL;
+	const char *str1, *str2;
+	struct timeval tv1, tv2;
+	pid_t pid1, pid2;
+	enum tevent_req_state state1, state2;
+	uint64_t err1, err2;
+	char *printstring;
+	ssize_t pack_len;
+	int err;
+	bool ok;
+
+	ev = samba_tevent_context_init(tctx);
+	torture_assert_not_null(tctx, ev, "samba_tevent_context_init failed\n");
+
+	req = profile2_send(tctx, ev);
+	torture_assert_not_null(tctx, req, "profile2_send failed\n");
+
+	ok = tevent_req_poll_unix(req, ev, &err);
+	torture_assert(tctx, ok, "tevent_req_poll_unix failed\n");
+
+	err = profile2_recv(req, tctx, &p1);
+	torture_assert_int_equal(tctx, err, 0, "profile2_recv failed\n");
+
+	TALLOC_FREE(req);
+	TALLOC_FREE(ev);
+
+	printstring = tevent_req_profile_string(tctx, p1, 0, UINT_MAX);
+	torture_assert_not_null(
+		tctx,
+		printstring,
+		"tevent_req_profile_string failed\n");
+	printf("%s\n", printstring);
+
+	pack_len = tevent_req_profile_pack(p1, NULL, 0);
+	torture_assert(tctx, pack_len>0, "profile_pack failed\n");
+
+	{
+		uint8_t buf[pack_len];
+		ssize_t unpack_len;
+
+		tevent_req_profile_pack(p1, buf, sizeof(buf));
+		dump_data(10, buf, sizeof(buf));
+
+		unpack_len = tevent_req_profile_unpack(
+			buf,
+			pack_len,
+			tctx,
+			&p2);
+		torture_assert_int_equal(tctx,
+					 pack_len,
+					 unpack_len,
+					 "profile_unpack failed\n");
+	}
+
+	printstring = tevent_req_profile_string(tctx, p2, 0, UINT_MAX);
+	torture_assert_not_null(
+		tctx,
+		printstring,
+		"tevent_req_profile_string failed\n");
+	printf("%s\n", printstring);
+
+	tevent_req_profile_get_name(p1, &str1);
+	tevent_req_profile_get_name(p2, &str2);
+	torture_assert_str_equal(tctx, str1, str2, "names differ\n");
+
+	tevent_req_profile_get_start(p1, &str1, &tv1);
+	tevent_req_profile_get_start(p2, &str2, &tv2);
+	torture_assert_str_equal(tctx, str1, str2, "start strings differ\n");
+	torture_assert(tctx,
+		       tevent_timeval_compare(&tv1, &tv2) == 0,
+		       "start times differ\n");
+
+	tevent_req_profile_get_stop(p1, &str1, &tv1);
+	tevent_req_profile_get_stop(p2, &str2, &tv2);
+	torture_assert_str_equal(tctx, str1, str2, "stop strings differ\n");
+	torture_assert(tctx,
+		       tevent_timeval_compare(&tv1, &tv2) == 0,
+		       "stop times differ\n");
+
+	tevent_req_profile_get_status(p1, &pid1, &state1, &err1);
+	tevent_req_profile_get_status(p2, &pid2, &state2, &err2);
+	torture_assert_int_equal(tctx, pid1, pid2, "pids differ\n");
+	torture_assert_int_equal(tctx, state1, state2, "states differ\n");
+	torture_assert_int_equal(tctx, err1, err2, "user errors differ\n");
+
+	str1 = tevent_req_profile_string(p1, p1, 0, UINT_MAX);
+	torture_assert_not_null(tctx, str1, "profile_string failed\n");
+	str2 = tevent_req_profile_string(p2, p2, 0, UINT_MAX);
+	torture_assert_not_null(tctx, str2, "profile_string failed\n");
+
+	torture_assert_str_equal(tctx, str1, str2, "result strings differ\n");
+
+	TALLOC_FREE(p1);
+	TALLOC_FREE(p2);
+
+	return true;
+}
+
+struct torture_suite *torture_local_tevent_req(TALLOC_CTX *mem_ctx)
+{
+	struct torture_suite *suite;
+
+	suite = torture_suite_create(mem_ctx, "tevent_req");
+
+	torture_suite_add_simple_tcase_const(
+		suite,
+		"create",
+		test_tevent_req_create,
+		NULL);
+	torture_suite_add_simple_tcase_const(
+		suite,
+		"profile1",
+		test_tevent_req_profile1,
+		NULL);
+	torture_suite_add_simple_tcase_const(
+		suite,
+		"profile2",
+		test_tevent_req_profile2,
+		NULL);
+
+	return suite;
+}
diff --git a/lib/tevent/tests/test_tevent_tag.c b/lib/tevent/tests/test_tevent_tag.c
new file mode 100644
index 0000000..2ae0e38
--- /dev/null
+++ b/lib/tevent/tests/test_tevent_tag.c
@@ -0,0 +1,253 @@
+/*
+ * Unix SMB/CIFS implementation.
+ *
+ * testing of some tevent_req aspects
+ *
+ * Copyright (C) Pavel Březina <pbrezina@redhat.com> 2021
+ *
+ *   ** NOTE! The following LGPL license applies to the tevent
+ *   ** library. This does NOT imply that all of Samba is released
+ *   ** under the LGPL
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <errno.h>
+#include <setjmp.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <signal.h>
+
+#include <talloc.h>
+#include <tevent.h>
+#include <cmocka.h>
+
+static void queue_trigger(struct tevent_req *req, void *private_data)
+{
+	/* Dummy handler. Just return. */
+	return;
+}
+
+static void fd_handler(struct tevent_context *ev,
+		       struct tevent_fd *fde,
+		       uint16_t flags,
+		       void *private_data)
+{
+	/* Dummy handler. Just return. */
+	return;
+}
+
+static void timer_handler(struct tevent_context *ev,
+			  struct tevent_timer *te,
+			  struct timeval current_time,
+			  void *private_data)
+{
+	/* Dummy handler. Just return. */
+	return;
+}
+
+static void signal_handler(struct tevent_context *ev,
+			   struct tevent_signal *se,
+			   int signum,
+			   int count,
+			   void *siginfo,
+			   void *private_data)
+{
+	/* Dummy handler. Just return. */
+	return;
+}
+
+static void immediate_handler(struct tevent_context *ctx,
+			      struct tevent_immediate *im,
+			      void *private_data)
+{
+	/* Dummy handler. Just return. */
+	return;
+}
+
+static int test_setup(void **state)
+{
+	struct tevent_context *ev;
+
+	ev = tevent_context_init(NULL);
+	assert_non_null(ev);
+
+	*state = ev;
+	return 0;
+}
+
+static int test_teardown(void **state)
+{
+	struct tevent_context *ev = (struct tevent_context *)(*state);
+	talloc_free(ev);
+	return 0;
+}
+
+static void test_fd_tag(void **state)
+{
+	struct tevent_context *ev = (struct tevent_context *)(*state);
+	struct tevent_fd *fde;
+	uint64_t tag;
+
+	fde = tevent_add_fd(ev, ev, 0, TEVENT_FD_READ, fd_handler, NULL);
+	assert_non_null(fde);
+
+	tag = tevent_fd_get_tag(fde);
+	assert_int_equal(0, tag);
+
+	tevent_fd_set_tag(fde, 1);
+	tag = tevent_fd_get_tag(fde);
+	assert_int_equal(1, tag);
+
+	tevent_re_initialise(ev);
+
+	tag = tevent_fd_get_tag(fde);
+	assert_int_equal(1, tag);
+
+	TALLOC_FREE(fde);
+}
+
+static void test_timer_tag(void **state)
+{
+	struct tevent_context *ev = (struct tevent_context *)(*state);
+	struct tevent_timer *te;
+	struct timeval next;
+	uint64_t tag;
+
+	next = tevent_timeval_current();
+	te = tevent_add_timer(ev, ev, next, timer_handler, NULL);
+	assert_non_null(te);
+
+	tag = tevent_timer_get_tag(te);
+	assert_int_equal(0, tag);
+
+	tevent_timer_set_tag(te, 1);
+	tag = tevent_timer_get_tag(te);
+	assert_int_equal(1, tag);
+
+	next = tevent_timeval_current();
+	tevent_update_timer(te, next);
+
+	tag = tevent_timer_get_tag(te);
+	assert_int_equal(1, tag);
+
+	tevent_re_initialise(ev);
+
+	tag = tevent_timer_get_tag(te);
+	assert_int_equal(1, tag);
+
+	TALLOC_FREE(te);
+}
+
+static void test_signal_tag(void **state)
+{
+	struct tevent_context *ev = (struct tevent_context *)(*state);
+	struct tevent_signal *se;
+	uint64_t tag;
+
+	se = tevent_add_signal(ev, ev, SIGUSR1, 0, signal_handler, NULL);
+	assert_non_null(se);
+
+	tag = tevent_signal_get_tag(se);
+	assert_int_equal(0, tag);
+
+	tevent_signal_set_tag(se, 1);
+	tag = tevent_signal_get_tag(se);
+	assert_int_equal(1, tag);
+
+	tevent_re_initialise(ev);
+
+	tag = tevent_signal_get_tag(se);
+	assert_int_equal(1, tag);
+
+	TALLOC_FREE(se);
+}
+
+static void test_immediate_tag(void **state)
+{
+	struct tevent_context *ev = (struct tevent_context *)(*state);
+	struct tevent_immediate *im;
+	uint64_t tag;
+
+	im = tevent_create_immediate(ev);
+	assert_non_null(im);
+
+	tag = tevent_immediate_get_tag(im);
+	assert_int_equal(0, tag);
+
+	tevent_immediate_set_tag(im, 1);
+	tag = tevent_immediate_get_tag(im);
+	assert_int_equal(1, tag);
+
+	tevent_schedule_immediate(im, ev, immediate_handler, NULL);
+
+	tag = tevent_immediate_get_tag(im);
+	assert_int_equal(1, tag);
+
+	tevent_re_initialise(ev);
+
+	tag = tevent_immediate_get_tag(im);
+	assert_int_equal(1, tag);
+
+	TALLOC_FREE(im);
+}
+
+static void test_queue_entry_tag(void **state)
+{
+	struct tevent_context *ev = (struct tevent_context *)(*state);
+	struct tevent_queue *q;
+	struct tevent_queue_entry *e1, *e2;
+	struct tevent_req *r1, *r2;
+	int *s1, *s2;
+	uint64_t tag;
+
+	q = tevent_queue_create(ev, "test_queue");
+	assert_non_null(q);
+
+	r1 = tevent_req_create(ev, &s1, int);
+	r2 = tevent_req_create(ev, &s2, int);
+	e1 = tevent_queue_add_entry(q, ev, r1, queue_trigger, NULL);
+	e2 = tevent_queue_add_entry(q, ev, r2, queue_trigger, NULL);
+
+	tag = tevent_queue_entry_get_tag(e1);
+	assert_int_equal(0, tag);
+	tag = tevent_queue_entry_get_tag(e2);
+	assert_int_equal(0, tag);
+
+	tevent_queue_entry_set_tag(e1, 1);
+	tevent_queue_entry_set_tag(e2, 2);
+
+	tag = tevent_queue_entry_get_tag(e1);
+	assert_int_equal(1, tag);
+
+	tag = tevent_queue_entry_get_tag(e2);
+	assert_int_equal(2, tag);
+
+	TALLOC_FREE(q);
+}
+
+int main(int argc, char **argv)
+{
+	const struct CMUnitTest tests[] = {
+		cmocka_unit_test_setup_teardown(test_fd_tag, test_setup, test_teardown),
+		cmocka_unit_test_setup_teardown(test_timer_tag, test_setup, test_teardown),
+		cmocka_unit_test_setup_teardown(test_signal_tag, test_setup, test_teardown),
+		cmocka_unit_test_setup_teardown(test_immediate_tag, test_setup, test_teardown),
+		cmocka_unit_test_setup_teardown(test_queue_entry_tag, test_setup, test_teardown),
+	};
+
+	cmocka_set_message_output(CM_OUTPUT_SUBUNIT);
+
+	return cmocka_run_group_tests(tests, NULL, NULL);
+}
diff --git a/lib/tevent/tests/test_tevent_trace.c b/lib/tevent/tests/test_tevent_trace.c
new file mode 100644
index 0000000..10e1ee0
--- /dev/null
+++ b/lib/tevent/tests/test_tevent_trace.c
@@ -0,0 +1,1324 @@
+/*
+ * Unix SMB/CIFS implementation.
+ *
+ * testing of some tevent_req aspects
+ *
+ * Copyright (C) Pavel Březina <pbrezina@redhat.com> 2021
+ *
+ *   ** NOTE! The following LGPL license applies to the tevent
+ *   ** library. This does NOT imply that all of Samba is released
+ *   ** under the LGPL
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <errno.h>
+#include <setjmp.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <signal.h>
+#include <unistd.h>
+
+#include <talloc.h>
+#include <tevent.h>
+#include <cmocka.h>
+
+struct test_ctx {
+	struct tevent_context *ev;
+
+	bool handler_skipped;
+	bool reattach_reset;
+
+	uint64_t (*get_tag)(const void *event);
+	void (*set_tag)(void *event, uint64_t tag);
+	uint64_t current_tag;
+
+	bool attach;
+	bool before_handler;
+	bool handler_called;
+	bool detach;
+};
+
+static void fd_handler(struct tevent_context *ev,
+		       struct tevent_fd *fde,
+		       uint16_t flags,
+		       void *private_data)
+{
+	struct test_ctx *tctx = (struct test_ctx *)private_data;
+	uint64_t tag = tevent_fd_get_tag(fde);
+	assert_true(tctx->attach);
+	assert_true(tctx->before_handler);
+	assert_false(tctx->handler_called);
+	assert_false(tctx->detach);
+	tctx->handler_called = true;
+	assert_int_equal(tag, tctx->current_tag);
+	return;
+}
+
+static void timer_handler(struct tevent_context *ev,
+			  struct tevent_timer *te,
+			  struct timeval current_time,
+			  void *private_data)
+{
+	struct test_ctx *tctx = (struct test_ctx *)private_data;
+	uint64_t tag = tevent_timer_get_tag(te);
+	assert_true(tctx->attach);
+	assert_true(tctx->before_handler);
+	assert_false(tctx->handler_called);
+	assert_false(tctx->detach);
+	tctx->handler_called = true;
+	assert_int_equal(tag, tctx->current_tag);
+	return;
+}
+
+static void signal_handler(struct tevent_context *ev,
+			   struct tevent_signal *se,
+			   int signum,
+			   int count,
+			   void *siginfo,
+			   void *private_data)
+{
+	struct test_ctx *tctx = (struct test_ctx *)private_data;
+	uint64_t tag = tevent_signal_get_tag(se);
+	assert_true(tctx->attach);
+	assert_true(tctx->before_handler);
+	assert_false(tctx->handler_called);
+	assert_false(tctx->detach);
+	tctx->handler_called = true;
+	assert_int_equal(tag, tctx->current_tag);
+	return;
+}
+
+static void immediate_handler(struct tevent_context *ctx,
+			      struct tevent_immediate *im,
+			      void *private_data)
+{
+	struct test_ctx *tctx = (struct test_ctx *)private_data;
+	uint64_t tag = tevent_immediate_get_tag(im);
+	assert_true(tctx->attach);
+	assert_true(tctx->before_handler);
+	assert_false(tctx->handler_called);
+	assert_false(tctx->detach);
+	tctx->handler_called = true;
+	assert_int_equal(tag, tctx->current_tag);
+	return;
+}
+
+static void immediate_handler_reschedule(struct tevent_context *ctx,
+					 struct tevent_immediate *im,
+					 void *private_data)
+{
+	struct test_ctx *tctx = (struct test_ctx *)private_data;
+	uint64_t tag = tevent_immediate_get_tag(im);
+	assert_true(tctx->attach);
+	assert_true(tctx->before_handler);
+	assert_false(tctx->handler_called);
+	assert_false(tctx->detach);
+	tctx->handler_called = true;
+	assert_int_equal(tag, tctx->current_tag);
+
+	assert_false(tctx->reattach_reset);
+	tctx->reattach_reset = true;
+	tevent_schedule_immediate(im, tctx->ev, immediate_handler, tctx);
+	assert_false(tctx->reattach_reset);
+	assert_false(tctx->handler_skipped);
+	assert_true(tctx->attach);
+	assert_false(tctx->before_handler);
+	assert_false(tctx->handler_called);
+	assert_false(tctx->detach);
+	assert_int_not_equal(tag, tctx->current_tag);
+	tag = tevent_immediate_get_tag(im);
+	assert_int_equal(tag, tctx->current_tag);
+
+	tctx->handler_skipped = true;
+	tctx->reattach_reset = true;
+	tevent_schedule_immediate(im, tctx->ev, immediate_handler, tctx);
+	assert_false(tctx->reattach_reset);
+	assert_false(tctx->handler_skipped);
+	assert_true(tctx->attach);
+	assert_false(tctx->before_handler);
+	assert_false(tctx->handler_called);
+	assert_false(tctx->detach);
+	assert_int_not_equal(tag, tctx->current_tag);
+	tag = tevent_immediate_get_tag(im);
+	assert_int_equal(tag, tctx->current_tag);
+}
+
+static void fd_handler_free(struct tevent_context *ev,
+			    struct tevent_fd *fde,
+			    uint16_t flags,
+			    void *private_data)
+{
+	struct test_ctx *tctx = (struct test_ctx *)private_data;
+	uint64_t tag = tevent_fd_get_tag(fde);
+	assert_true(tctx->attach);
+	assert_true(tctx->before_handler);
+	assert_false(tctx->handler_called);
+	assert_false(tctx->detach);
+	tctx->handler_called = true;
+	assert_int_equal(tag, tctx->current_tag);
+	TALLOC_FREE(fde);
+	assert_true(tctx->detach);
+	return;
+}
+
+static void timer_handler_free(struct tevent_context *ev,
+			       struct tevent_timer *te,
+			       struct timeval current_time,
+			       void *private_data)
+{
+	struct test_ctx *tctx = (struct test_ctx *)private_data;
+	uint64_t tag = tevent_timer_get_tag(te);
+	assert_true(tctx->attach);
+	assert_true(tctx->before_handler);
+	assert_false(tctx->handler_called);
+	assert_false(tctx->detach);
+	tctx->handler_called = true;
+	assert_int_equal(tag, tctx->current_tag);
+	TALLOC_FREE(te);
+	assert_true(tctx->detach);
+	return;
+}
+
+static void signal_handler_free(struct tevent_context *ev,
+				struct tevent_signal *se,
+				int signum,
+				int count,
+				void *siginfo,
+				void *private_data)
+{
+	struct test_ctx *tctx = (struct test_ctx *)private_data;
+	uint64_t tag = tevent_signal_get_tag(se);
+	assert_true(tctx->attach);
+	assert_true(tctx->before_handler);
+	assert_false(tctx->handler_called);
+	assert_false(tctx->detach);
+	tctx->handler_called = true;
+	assert_int_equal(tag, tctx->current_tag);
+	TALLOC_FREE(se);
+	assert_true(tctx->detach);
+	return;
+}
+
+static void immediate_handler_free(struct tevent_context *ctx,
+				   struct tevent_immediate *im,
+				   void *private_data)
+{
+	struct test_ctx *tctx = (struct test_ctx *)private_data;
+	uint64_t tag = tevent_immediate_get_tag(im);
+	assert_true(tctx->attach);
+	assert_true(tctx->before_handler);
+	assert_false(tctx->handler_called);
+	assert_false(tctx->detach);
+	tctx->handler_called = true;
+	assert_int_equal(tag, tctx->current_tag);
+	TALLOC_FREE(im);
+	assert_true(tctx->detach);
+	return;
+}
+
+static void trace_event_cb(void *event,
+			   enum tevent_event_trace_point point,
+			   void *private_data)
+{
+	struct test_ctx *tctx = (struct test_ctx *)private_data;
+	uint64_t tag = tctx->get_tag(event);
+
+	switch (point) {
+	case TEVENT_EVENT_TRACE_ATTACH:
+		if (tctx->reattach_reset) {
+			assert_true(tctx->attach);
+			assert_true(tctx->detach);
+			tctx->attach = false;
+			tctx->before_handler = false;
+			tctx->handler_called = false;
+			tctx->detach = false;
+			tctx->handler_skipped = false;
+			tctx->reattach_reset = false;
+		}
+		assert_false(tctx->attach);
+		assert_false(tctx->before_handler);
+		assert_false(tctx->handler_called);
+		assert_false(tctx->detach);
+		tctx->attach = true;
+		assert_int_equal(tag, tctx->current_tag);
+		tag = ++tctx->current_tag;
+		tctx->set_tag(event, tag);
+		break;
+	case TEVENT_EVENT_TRACE_BEFORE_HANDLER:
+		assert_true(tctx->attach);
+		assert_false(tctx->before_handler);
+		assert_false(tctx->handler_called);
+		assert_false(tctx->detach);
+		tctx->before_handler = true;
+		assert_int_equal(tag, tctx->current_tag);
+		break;
+	case TEVENT_EVENT_TRACE_DETACH:
+		assert_true(tctx->attach);
+		if (tctx->handler_skipped) {
+			assert_false(tctx->before_handler);
+			assert_false(tctx->handler_called);
+		} else {
+			assert_true(tctx->before_handler);
+			assert_true(tctx->handler_called);
+		}
+		assert_false(tctx->detach);
+		tctx->detach = true;
+		assert_int_equal(tag, tctx->current_tag);
+		break;
+	}
+}
+
+static void trace_event_cb1(void *event,
+			   enum tevent_event_trace_point point,
+			   void *private_data)
+{
+	struct test_ctx *tctx = (struct test_ctx *)private_data;
+	uint64_t tag;
+
+	switch (point) {
+	case TEVENT_EVENT_TRACE_ATTACH:
+		tctx->attach = true;
+		tag = ++tctx->current_tag;
+		tctx->set_tag(event, tag);
+		break;
+	case TEVENT_EVENT_TRACE_BEFORE_HANDLER:
+		tctx->before_handler = true;
+		break;
+	case TEVENT_EVENT_TRACE_DETACH:
+		tctx->detach = true;
+		break;
+	}
+}
+
+static int test_setup(void **state)
+{
+	struct test_ctx *tctx;
+
+	tctx = talloc_zero(NULL, struct test_ctx);
+	assert_non_null(tctx);
+
+	tctx->ev = tevent_context_init(tctx);
+	assert_non_null(tctx->ev);
+
+	*state = tctx;
+	return 0;
+}
+
+static int test_teardown(void **state)
+{
+	struct test_ctx *tctx = (struct test_ctx *)(*state);
+	tctx->get_tag = NULL;
+	tctx->set_tag = NULL;
+	tevent_set_trace_fd_callback(tctx->ev, NULL, NULL);
+	tevent_set_trace_timer_callback(tctx->ev, NULL, NULL);
+	tevent_set_trace_signal_callback(tctx->ev, NULL, NULL);
+	tevent_set_trace_immediate_callback(tctx->ev, NULL, NULL);
+	TALLOC_FREE(tctx);
+	return 0;
+}
+
+static uint64_t fd_get_tag(const void *_event)
+{
+	const struct tevent_fd *event =
+		(const struct tevent_fd *)_event;
+
+	return tevent_fd_get_tag(event);
+}
+
+static void fd_set_tag(void *_event, uint64_t tag)
+{
+	struct tevent_fd *event =
+		(struct tevent_fd *)_event;
+
+	tevent_fd_set_tag(event, tag);
+}
+
+static uint64_t timer_get_tag(const void *_event)
+{
+	const struct tevent_timer *event =
+		(const struct tevent_timer *)_event;
+
+	return tevent_timer_get_tag(event);
+}
+
+static void timer_set_tag(void *_event, uint64_t tag)
+{
+	struct tevent_timer *event =
+		(struct tevent_timer *)_event;
+
+	tevent_timer_set_tag(event, tag);
+}
+
+static uint64_t signal_get_tag(const void *_event)
+{
+	const struct tevent_signal *event =
+		(const struct tevent_signal *)_event;
+
+	return tevent_signal_get_tag(event);
+}
+
+static void signal_set_tag(void *_event, uint64_t tag)
+{
+	struct tevent_signal *event =
+		(struct tevent_signal *)_event;
+
+	tevent_signal_set_tag(event, tag);
+}
+
+static uint64_t immediate_get_tag(const void *_event)
+{
+	const struct tevent_immediate *event =
+		(const struct tevent_immediate *)_event;
+
+	return tevent_immediate_get_tag(event);
+}
+
+static void immediate_set_tag(void *_event, uint64_t tag)
+{
+	struct tevent_immediate *event =
+		(struct tevent_immediate *)_event;
+
+	tevent_immediate_set_tag(event, tag);
+}
+
+static uint64_t queue_entry_get_tag(const void *_event)
+{
+	const struct tevent_queue_entry *event =
+		(const struct tevent_queue_entry *)_event;
+
+	return tevent_queue_entry_get_tag(event);
+}
+
+static void queue_entry_set_tag(void *_event, uint64_t tag)
+{
+	struct tevent_queue_entry *event =
+		(struct tevent_queue_entry *)_event;
+
+	tevent_queue_entry_set_tag(event, tag);
+}
+
+static void test_trace_event_fd__loop(void **state)
+{
+	struct test_ctx *tctx = (struct test_ctx *)(*state);
+	struct tevent_fd *fde;
+
+	tctx->get_tag = fd_get_tag;
+	tctx->set_tag = fd_set_tag;
+	tevent_set_trace_fd_callback(tctx->ev, (tevent_trace_fd_callback_t)trace_event_cb, tctx);
+
+	assert_false(tctx->attach);
+	assert_false(tctx->before_handler);
+	assert_false(tctx->handler_called);
+	assert_false(tctx->detach);
+
+	fde = tevent_add_fd(tctx->ev, tctx, 0, TEVENT_FD_WRITE, fd_handler, tctx);
+	assert_non_null(fde);
+	assert_true(tctx->attach);
+	assert_false(tctx->before_handler);
+	assert_false(tctx->handler_called);
+	assert_false(tctx->detach);
+
+	TEVENT_FD_WRITEABLE(fde);
+	tevent_loop_once(tctx->ev);
+	assert_true(tctx->attach);
+	assert_true(tctx->before_handler);
+	assert_true(tctx->handler_called);
+	assert_false(tctx->detach);
+
+	TALLOC_FREE(fde);
+	assert_true(tctx->attach);
+	assert_true(tctx->before_handler);
+	assert_true(tctx->handler_called);
+	assert_true(tctx->detach);
+}
+
+static void test_trace_event_fd__reset(void **state)
+{
+	struct test_ctx *tctx = (struct test_ctx *)(*state);
+	struct tevent_fd *fde;
+
+	tctx->get_tag = fd_get_tag;
+	tctx->set_tag = fd_set_tag;
+	tevent_set_trace_fd_callback(tctx->ev, (tevent_trace_fd_callback_t)trace_event_cb, tctx);
+
+	assert_false(tctx->attach);
+	assert_false(tctx->before_handler);
+	assert_false(tctx->handler_called);
+	assert_false(tctx->detach);
+
+	fde = tevent_add_fd(tctx->ev, tctx, 0, TEVENT_FD_WRITE, fd_handler, tctx);
+	assert_non_null(fde);
+	assert_true(tctx->attach);
+	assert_false(tctx->before_handler);
+	assert_false(tctx->handler_called);
+	assert_false(tctx->detach);
+
+	tctx->handler_skipped = true;
+	tevent_re_initialise(tctx->ev);
+	assert_true(tctx->attach);
+	assert_false(tctx->before_handler);
+	assert_false(tctx->handler_called);
+	assert_true(tctx->detach);
+}
+
+static void test_trace_event_fd__free(void **state)
+{
+	struct test_ctx *tctx = (struct test_ctx *)(*state);
+	struct tevent_fd *fde;
+
+	tctx->get_tag = fd_get_tag;
+	tctx->set_tag = fd_set_tag;
+	tevent_set_trace_fd_callback(tctx->ev, (tevent_trace_fd_callback_t)trace_event_cb, tctx);
+
+	assert_false(tctx->attach);
+	assert_false(tctx->before_handler);
+	assert_false(tctx->handler_called);
+	assert_false(tctx->detach);
+
+	fde = tevent_add_fd(tctx->ev, tctx, 0, TEVENT_FD_WRITE, fd_handler, tctx);
+	assert_non_null(fde);
+	assert_true(tctx->attach);
+	assert_false(tctx->before_handler);
+	assert_false(tctx->handler_called);
+	assert_false(tctx->detach);
+
+	tctx->handler_skipped = true;
+	TALLOC_FREE(fde);
+	assert_true(tctx->attach);
+	assert_false(tctx->before_handler);
+	assert_false(tctx->handler_called);
+	assert_true(tctx->detach);
+}
+
+static void test_trace_event_fd__free_in_handler(void **state)
+{
+	struct test_ctx *tctx = (struct test_ctx *)(*state);
+	struct tevent_fd *fde;
+
+	tctx->get_tag = fd_get_tag;
+	tctx->set_tag = fd_set_tag;
+	tevent_set_trace_fd_callback(tctx->ev, (tevent_trace_fd_callback_t)trace_event_cb, tctx);
+
+	assert_false(tctx->attach);
+	assert_false(tctx->before_handler);
+	assert_false(tctx->handler_called);
+	assert_false(tctx->detach);
+
+	fde = tevent_add_fd(tctx->ev, tctx, 0, TEVENT_FD_WRITE, fd_handler_free, tctx);
+	assert_non_null(fde);
+	assert_true(tctx->attach);
+	assert_false(tctx->before_handler);
+	assert_false(tctx->handler_called);
+	assert_false(tctx->detach);
+
+	TEVENT_FD_WRITEABLE(fde);
+	tevent_loop_once(tctx->ev);
+	assert_true(tctx->attach);
+	assert_true(tctx->before_handler);
+	assert_true(tctx->handler_called);
+	assert_true(tctx->detach);
+}
+
+static void test_trace_event_timer__loop(void **state)
+{
+	struct test_ctx *tctx = (struct test_ctx *)(*state);
+	struct tevent_timer *te;
+	struct timeval next;
+
+	tctx->get_tag = timer_get_tag;
+	tctx->set_tag = timer_set_tag;
+	tevent_set_trace_timer_callback(tctx->ev, (tevent_trace_timer_callback_t)trace_event_cb, tctx);
+
+	assert_false(tctx->attach);
+	assert_false(tctx->before_handler);
+	assert_false(tctx->handler_called);
+	assert_false(tctx->detach);
+
+	next = tevent_timeval_current();
+	te = tevent_add_timer(tctx->ev, tctx, next, timer_handler, tctx);
+	assert_non_null(te);
+	assert_true(tctx->attach);
+	assert_false(tctx->before_handler);
+	assert_false(tctx->handler_called);
+	assert_false(tctx->detach);
+
+	tevent_loop_once(tctx->ev);
+	assert_true(tctx->attach);
+	assert_true(tctx->before_handler);
+	assert_true(tctx->handler_called);
+	/* timer events are self destructing after calling the handler */
+	assert_true(tctx->detach);
+}
+
+static void test_trace_event_timer__reset(void **state)
+{
+	struct test_ctx *tctx = (struct test_ctx *)(*state);
+	struct tevent_timer *te;
+	struct timeval next;
+
+	tctx->get_tag = timer_get_tag;
+	tctx->set_tag = timer_set_tag;
+	tevent_set_trace_timer_callback(tctx->ev, (tevent_trace_timer_callback_t)trace_event_cb, tctx);
+
+	assert_false(tctx->attach);
+	assert_false(tctx->before_handler);
+	assert_false(tctx->handler_called);
+	assert_false(tctx->detach);
+
+	next = tevent_timeval_current();
+	te = tevent_add_timer(tctx->ev, tctx, next, timer_handler, tctx);
+	assert_non_null(te);
+	assert_true(tctx->attach);
+	assert_false(tctx->before_handler);
+	assert_false(tctx->handler_called);
+	assert_false(tctx->detach);
+	assert_true(tctx->attach);
+
+	assert_false(tctx->reattach_reset);
+	tctx->handler_skipped = true;
+	tctx->reattach_reset = true;
+	next = tevent_timeval_current();
+	tevent_update_timer(te, next);
+	assert_false(tctx->reattach_reset);
+	assert_false(tctx->handler_skipped);
+	assert_true(tctx->attach);
+	assert_false(tctx->before_handler);
+	assert_false(tctx->handler_called);
+	assert_false(tctx->detach);
+
+	tctx->handler_skipped = true;
+	tevent_re_initialise(tctx->ev);
+	assert_true(tctx->attach);
+	assert_false(tctx->before_handler);
+	assert_false(tctx->handler_called);
+	assert_true(tctx->detach);
+}
+
+static void test_trace_event_timer__free(void **state)
+{
+	struct test_ctx *tctx = (struct test_ctx *)(*state);
+	struct tevent_timer *te;
+	struct timeval next;
+
+	tctx->get_tag = timer_get_tag;
+	tctx->set_tag = timer_set_tag;
+	tevent_set_trace_timer_callback(tctx->ev, (tevent_trace_timer_callback_t)trace_event_cb, tctx);
+
+	assert_false(tctx->attach);
+	assert_false(tctx->before_handler);
+	assert_false(tctx->handler_called);
+	assert_false(tctx->detach);
+
+	next = tevent_timeval_current();
+	te = tevent_add_timer(tctx->ev, tctx, next, timer_handler, tctx);
+	assert_non_null(te);
+	assert_true(tctx->attach);
+	assert_false(tctx->before_handler);
+	assert_false(tctx->handler_called);
+	assert_false(tctx->detach);
+	assert_true(tctx->attach);
+
+	tctx->handler_skipped = true;
+	TALLOC_FREE(te);
+	assert_true(tctx->attach);
+	assert_false(tctx->before_handler);
+	assert_false(tctx->handler_called);
+	assert_true(tctx->detach);
+}
+
+static void test_trace_event_timer__free_in_handler(void **state)
+{
+	struct test_ctx *tctx = (struct test_ctx *)(*state);
+	struct tevent_timer *te;
+	struct timeval next;
+
+	tctx->get_tag = timer_get_tag;
+	tctx->set_tag = timer_set_tag;
+	tevent_set_trace_timer_callback(tctx->ev, (tevent_trace_timer_callback_t)trace_event_cb, tctx);
+
+	assert_false(tctx->attach);
+	assert_false(tctx->before_handler);
+	assert_false(tctx->handler_called);
+	assert_false(tctx->detach);
+
+	next = tevent_timeval_current();
+	te = tevent_add_timer(tctx->ev, tctx, next, timer_handler_free, tctx);
+	assert_non_null(te);
+	assert_true(tctx->attach);
+	assert_false(tctx->before_handler);
+	assert_false(tctx->handler_called);
+	assert_false(tctx->detach);
+
+	tevent_loop_once(tctx->ev);
+	assert_true(tctx->attach);
+	assert_true(tctx->before_handler);
+	assert_true(tctx->handler_called);
+	assert_true(tctx->detach);
+}
+
+static void test_trace_event_signal__loop(void **state)
+{
+	struct test_ctx *tctx = (struct test_ctx *)(*state);
+	struct tevent_signal *se;
+
+	tctx->get_tag = signal_get_tag;
+	tctx->set_tag = signal_set_tag;
+	tevent_set_trace_signal_callback(tctx->ev, (tevent_trace_signal_callback_t)trace_event_cb, tctx);
+
+	assert_false(tctx->attach);
+	assert_false(tctx->before_handler);
+	assert_false(tctx->handler_called);
+	assert_false(tctx->detach);
+
+	se = tevent_add_signal(tctx->ev, tctx, SIGUSR1, 0, signal_handler, tctx);
+	assert_non_null(se);
+	assert_true(tctx->attach);
+	assert_false(tctx->before_handler);
+	assert_false(tctx->handler_called);
+	assert_false(tctx->detach);
+
+	kill(getpid(), SIGUSR1);
+	tevent_loop_once(tctx->ev);
+	assert_true(tctx->attach);
+	assert_true(tctx->before_handler);
+	assert_true(tctx->handler_called);
+	assert_false(tctx->detach);
+
+	TALLOC_FREE(se);
+	assert_true(tctx->attach);
+	assert_true(tctx->before_handler);
+	assert_true(tctx->handler_called);
+	assert_true(tctx->detach);
+}
+
+static void test_trace_event_signal__reset(void **state)
+{
+	struct test_ctx *tctx = (struct test_ctx *)(*state);
+	struct tevent_signal *se;
+
+	tctx->get_tag = signal_get_tag;
+	tctx->set_tag = signal_set_tag;
+	tevent_set_trace_signal_callback(tctx->ev, (tevent_trace_signal_callback_t)trace_event_cb, tctx);
+
+	assert_false(tctx->attach);
+	assert_false(tctx->before_handler);
+	assert_false(tctx->handler_called);
+	assert_false(tctx->detach);
+
+	se = tevent_add_signal(tctx->ev, tctx, SIGUSR1, 0, signal_handler, tctx);
+	assert_non_null(se);
+	assert_true(tctx->attach);
+	assert_false(tctx->before_handler);
+	assert_false(tctx->handler_called);
+	assert_false(tctx->detach);
+
+	tctx->handler_skipped = true;
+	TALLOC_FREE(se);
+	assert_true(tctx->attach);
+	assert_false(tctx->before_handler);
+	assert_false(tctx->handler_called);
+	assert_true(tctx->detach);
+}
+
+static void test_trace_event_signal__free(void **state)
+{
+	struct test_ctx *tctx = (struct test_ctx *)(*state);
+	struct tevent_signal *se;
+
+	tctx->get_tag = signal_get_tag;
+	tctx->set_tag = signal_set_tag;
+	tevent_set_trace_signal_callback(tctx->ev, (tevent_trace_signal_callback_t)trace_event_cb, tctx);
+
+	assert_false(tctx->attach);
+	assert_false(tctx->before_handler);
+	assert_false(tctx->handler_called);
+	assert_false(tctx->detach);
+
+	se = tevent_add_signal(tctx->ev, tctx, SIGUSR1, 0, signal_handler, tctx);
+	assert_non_null(se);
+	assert_true(tctx->attach);
+	assert_false(tctx->before_handler);
+	assert_false(tctx->handler_called);
+	assert_false(tctx->detach);
+
+	tctx->handler_skipped = true;
+	TALLOC_FREE(se);
+	assert_true(tctx->attach);
+	assert_false(tctx->before_handler);
+	assert_false(tctx->handler_called);
+	assert_true(tctx->detach);
+}
+
+static void test_trace_event_signal__free_in_handler(void **state)
+{
+	struct test_ctx *tctx = (struct test_ctx *)(*state);
+	struct tevent_signal *se;
+
+	tctx->get_tag = signal_get_tag;
+	tctx->set_tag = signal_set_tag;
+	tevent_set_trace_signal_callback(tctx->ev, (tevent_trace_signal_callback_t)trace_event_cb, tctx);
+
+	assert_false(tctx->attach);
+	assert_false(tctx->before_handler);
+	assert_false(tctx->handler_called);
+	assert_false(tctx->detach);
+
+	se = tevent_add_signal(tctx->ev, tctx, SIGUSR1, 0, signal_handler_free, tctx);
+	assert_non_null(se);
+	assert_true(tctx->attach);
+	assert_false(tctx->before_handler);
+	assert_false(tctx->handler_called);
+	assert_false(tctx->detach);
+
+	kill(getpid(), SIGUSR1);
+	tevent_loop_once(tctx->ev);
+	assert_true(tctx->attach);
+	assert_true(tctx->before_handler);
+	assert_true(tctx->handler_called);
+	assert_true(tctx->detach);
+}
+
+static void test_trace_event_immediate__loop(void **state)
+{
+	struct test_ctx *tctx = (struct test_ctx *)(*state);
+	struct tevent_immediate *im;
+
+	tctx->get_tag = immediate_get_tag;
+	tctx->set_tag = immediate_set_tag;
+	tevent_set_trace_immediate_callback(tctx->ev, (tevent_trace_immediate_callback_t)trace_event_cb, tctx);
+
+	assert_false(tctx->attach);
+	assert_false(tctx->before_handler);
+	assert_false(tctx->handler_called);
+	assert_false(tctx->detach);
+
+	im = tevent_create_immediate(tctx);
+	assert_non_null(im);
+
+	assert_false(tctx->attach);
+	assert_false(tctx->before_handler);
+	assert_false(tctx->handler_called);
+	assert_false(tctx->detach);
+
+	tevent_schedule_immediate(im, tctx->ev, immediate_handler, tctx);
+	assert_true(tctx->attach);
+	assert_false(tctx->before_handler);
+	assert_false(tctx->handler_called);
+	assert_false(tctx->detach);
+
+	tevent_loop_once(tctx->ev);
+	assert_true(tctx->attach);
+	assert_true(tctx->before_handler);
+	assert_true(tctx->handler_called);
+	/* immediate events are self detaching */
+	assert_true(tctx->detach);
+}
+
+static void test_trace_event_immediate__reset(void **state)
+{
+	struct test_ctx *tctx = (struct test_ctx *)(*state);
+	struct tevent_immediate *im;
+
+	tctx->get_tag = immediate_get_tag;
+	tctx->set_tag = immediate_set_tag;
+	tevent_set_trace_immediate_callback(tctx->ev, (tevent_trace_immediate_callback_t)trace_event_cb, tctx);
+
+	assert_false(tctx->attach);
+	assert_false(tctx->before_handler);
+	assert_false(tctx->handler_called);
+	assert_false(tctx->detach);
+
+	im = tevent_create_immediate(tctx);
+	assert_non_null(im);
+
+	assert_false(tctx->attach);
+	assert_false(tctx->before_handler);
+	assert_false(tctx->handler_called);
+	assert_false(tctx->detach);
+
+	tevent_schedule_immediate(im, tctx->ev, immediate_handler, tctx);
+	assert_true(tctx->attach);
+	assert_false(tctx->before_handler);
+	assert_false(tctx->handler_called);
+	assert_false(tctx->detach);
+
+	tctx->handler_skipped = true;
+	tevent_re_initialise(tctx->ev);
+	assert_true(tctx->attach);
+	assert_false(tctx->before_handler);
+	assert_false(tctx->handler_called);
+	assert_true(tctx->detach);
+}
+
+static void test_trace_event_immediate__free(void **state)
+{
+	struct test_ctx *tctx = (struct test_ctx *)(*state);
+	struct tevent_immediate *im;
+
+	tctx->get_tag = immediate_get_tag;
+	tctx->set_tag = immediate_set_tag;
+	tevent_set_trace_immediate_callback(tctx->ev, (tevent_trace_immediate_callback_t)trace_event_cb, tctx);
+
+	assert_false(tctx->attach);
+	assert_false(tctx->before_handler);
+	assert_false(tctx->handler_called);
+	assert_false(tctx->detach);
+
+	im = tevent_create_immediate(tctx);
+	assert_non_null(im);
+
+	assert_false(tctx->attach);
+	assert_false(tctx->before_handler);
+	assert_false(tctx->handler_called);
+	assert_false(tctx->detach);
+
+	tevent_schedule_immediate(im, tctx->ev, immediate_handler, tctx);
+	assert_true(tctx->attach);
+	assert_false(tctx->before_handler);
+	assert_false(tctx->handler_called);
+	assert_false(tctx->detach);
+
+	tctx->handler_skipped = true;
+	TALLOC_FREE(im);
+	assert_true(tctx->attach);
+	assert_false(tctx->before_handler);
+	assert_false(tctx->handler_called);
+	assert_true(tctx->detach);
+}
+
+static void test_trace_event_immediate__free_in_handler(void **state)
+{
+	struct test_ctx *tctx = (struct test_ctx *)(*state);
+	struct tevent_immediate *im;
+
+	tctx->get_tag = immediate_get_tag;
+	tctx->set_tag = immediate_set_tag;
+	tevent_set_trace_immediate_callback(tctx->ev, (tevent_trace_immediate_callback_t)trace_event_cb, tctx);
+
+	assert_false(tctx->attach);
+	assert_false(tctx->before_handler);
+	assert_false(tctx->handler_called);
+	assert_false(tctx->detach);
+
+	im = tevent_create_immediate(tctx);
+	assert_non_null(im);
+
+	assert_false(tctx->attach);
+	assert_false(tctx->before_handler);
+	assert_false(tctx->handler_called);
+	assert_false(tctx->detach);
+
+	tevent_schedule_immediate(im, tctx->ev, immediate_handler_free, tctx);
+	assert_true(tctx->attach);
+	assert_false(tctx->before_handler);
+	assert_false(tctx->handler_called);
+	assert_false(tctx->detach);
+
+	tevent_loop_once(tctx->ev);
+	assert_true(tctx->attach);
+	assert_true(tctx->before_handler);
+	assert_true(tctx->handler_called);
+	assert_true(tctx->detach);
+}
+
+static void test_trace_event_immediate__reschedule(void **state)
+{
+	struct test_ctx *tctx = (struct test_ctx *)(*state);
+	struct tevent_immediate *im;
+
+	tctx->get_tag = immediate_get_tag;
+	tctx->set_tag = immediate_set_tag;
+	tevent_set_trace_immediate_callback(tctx->ev, (tevent_trace_immediate_callback_t)trace_event_cb, tctx);
+
+	assert_false(tctx->attach);
+	assert_false(tctx->before_handler);
+	assert_false(tctx->handler_called);
+	assert_false(tctx->detach);
+
+	im = tevent_create_immediate(tctx);
+	assert_non_null(im);
+
+	assert_false(tctx->attach);
+	assert_false(tctx->before_handler);
+	assert_false(tctx->handler_called);
+	assert_false(tctx->detach);
+
+	tevent_schedule_immediate(im, tctx->ev, immediate_handler, tctx);
+	assert_true(tctx->attach);
+	assert_false(tctx->before_handler);
+	assert_false(tctx->handler_called);
+	assert_false(tctx->detach);
+
+	assert_false(tctx->reattach_reset);
+	tctx->handler_skipped = true;
+	tctx->reattach_reset = true;
+	tevent_schedule_immediate(im, tctx->ev, immediate_handler_reschedule, tctx);
+	assert_false(tctx->reattach_reset);
+	assert_false(tctx->handler_skipped);
+	assert_true(tctx->attach);
+	assert_false(tctx->before_handler);
+	assert_false(tctx->handler_called);
+	assert_false(tctx->detach);
+
+	tevent_loop_once(tctx->ev);
+	assert_false(tctx->reattach_reset);
+	assert_true(tctx->attach);
+	assert_false(tctx->before_handler);
+	assert_false(tctx->handler_called);
+	assert_false(tctx->detach);
+
+	tevent_loop_once(tctx->ev);
+	assert_true(tctx->attach);
+	assert_true(tctx->before_handler);
+	assert_true(tctx->handler_called);
+	/* immediate events are self detaching */
+	assert_true(tctx->detach);
+}
+
+struct dummy_request_state
+{
+	int i;
+	struct tevent_queue_entry *e;
+};
+
+static void queue_trigger(struct tevent_req *req, void *private_data)
+{
+	struct test_ctx *tctx = (struct test_ctx *)private_data;
+	struct dummy_request_state *state = tevent_req_data(
+		req, struct dummy_request_state);
+
+	tctx->handler_called = true;
+	assert_int_equal(tevent_queue_entry_get_tag(state->e), state->i);
+	TALLOC_FREE(req);
+
+	return;
+}
+
+static void test_trace_queue__loop(void **state)
+{
+	struct test_ctx *tctx = (struct test_ctx *)(*state);
+	struct tevent_queue *qa, *qb;
+	struct tevent_req *r1, *r2, *r3, *r4, *r5;
+	struct dummy_request_state *ds1, *ds2, *ds3, *ds4, *ds5;
+
+	tevent_set_trace_queue_callback(
+			tctx->ev,
+			(tevent_trace_queue_callback_t)trace_event_cb1,
+			tctx);
+	tctx->get_tag = queue_entry_get_tag;
+	tctx->set_tag = queue_entry_set_tag;
+
+	qa = tevent_queue_create(tctx->ev, "test_queue A");
+	assert_non_null(qa);
+	qb = tevent_queue_create(tctx->ev, "test_queue B");
+	assert_non_null(qb);
+
+	r1 = tevent_req_create(tctx->ev, &ds1, struct dummy_request_state);
+	ds1->e = tevent_queue_add_entry(qa,
+					tctx->ev,
+					r1,
+					queue_trigger,
+					*state);
+	ds1->i = tctx->current_tag;
+	assert_int_equal(ds1->i, 1);
+
+	r2 = tevent_req_create(tctx->ev, &ds2, struct dummy_request_state);
+	ds2->e = tevent_queue_add_entry(qa,
+					tctx->ev,
+					r2,
+					queue_trigger,
+					*state);
+	ds2->i = tctx->current_tag;
+	assert_int_equal(ds2->i, 2);
+
+	r3 = tevent_req_create(tctx->ev, &ds3, struct dummy_request_state);
+	ds3->e = tevent_queue_add_entry(qb,
+					tctx->ev,
+					r3,
+					queue_trigger,
+					*state);
+	ds3->i = tctx->current_tag;
+	assert_int_equal(ds3->i, 3);
+
+	r4 = tevent_req_create(tctx->ev, &ds4, struct dummy_request_state);
+	ds4->e = tevent_queue_add_entry(qb,
+					tctx->ev,
+					r4,
+					queue_trigger,
+					*state);
+	ds4->i = tctx->current_tag;
+	assert_int_equal(ds4->i, 4);
+
+	r5 = tevent_req_create(tctx->ev, &ds5, struct dummy_request_state);
+	ds5->e = tevent_queue_add_entry(qa,
+					tctx->ev,
+					r5,
+					queue_trigger,
+					*state);
+	ds5->i = tctx->current_tag;
+	assert_int_equal(ds5->i, 5);
+
+	tevent_loop_once(tctx->ev);
+	tevent_loop_once(tctx->ev);
+	tevent_loop_once(tctx->ev);
+	tevent_loop_once(tctx->ev);
+	tevent_loop_once(tctx->ev);
+}
+
+static void reset_tctx(struct test_ctx *tctx)
+{
+	tctx->attach = false;
+	tctx->before_handler = false;
+	tctx->handler_called = false;
+	tctx->detach = false;
+}
+
+static void test_trace_queue__extra(void **state)
+{
+	struct test_ctx *tctx = (struct test_ctx *)(*state);
+	struct tevent_queue *qa;
+	struct tevent_req *r1, *r2, *r3;
+	struct dummy_request_state *ds1, *ds2, *ds3;
+
+	tevent_set_trace_queue_callback(
+				tctx->ev,
+				(tevent_trace_queue_callback_t)trace_event_cb1,
+				tctx);
+	tctx->get_tag = queue_entry_get_tag;
+	tctx->set_tag = queue_entry_set_tag;
+
+	qa = tevent_queue_create(tctx->ev, "test_queue A");
+	assert_non_null(qa);
+
+	/*
+	 * r1 - this tests optimize_empty - request is triggered immediately,
+	 * (and not even scheduled to tevent_context). The TALLOC_FREE() called
+	 * from queue_trigger removes the request/queue_entry from the queue qa.
+	 * So qa is empty
+	 */
+	r1 = tevent_req_create(tctx->ev, &ds1, struct dummy_request_state);
+	ds1->e = tevent_queue_add_optimize_empty(qa,
+						 tctx->ev,
+						 r1,
+						 queue_trigger,
+						 *state);
+	assert_true(tctx->attach);
+	assert_true(tctx->before_handler);
+	assert_true(tctx->handler_called);
+	assert_true(tctx->detach);
+	assert_int_equal(tevent_queue_length(qa), 0);
+
+	reset_tctx(tctx);
+
+	/*
+	 * Test a blocker request r2 - the trigger function is NULL.
+	 */
+	r2 = tevent_req_create(tctx->ev, &ds2, struct dummy_request_state);
+	ds2->e = tevent_queue_add_entry(qa, tctx->ev, r2, NULL, *state);
+	ds2->i = tctx->current_tag;
+	assert_true(tctx->attach);
+	assert_false(tctx->before_handler);
+	assert_false(tctx->handler_called);
+	assert_false(tctx->detach);
+	assert_int_equal(tevent_queue_length(qa), 1);
+
+	/*
+	 * This runs the tevent_queue_noop_trigger().
+	 * A blocker r2 is still on the queue head, with triggered==true
+	 */
+	tevent_loop_once(tctx->ev);
+
+	assert_true(tctx->attach);
+	assert_true(tctx->before_handler);
+	assert_false(tctx->handler_called);
+	/* tevent_queue_noop_trigger() is a noop. Does not set handler_called */
+	assert_false(tctx->detach);
+	assert_int_equal(tevent_queue_length(qa), 1);
+
+	/*
+	 * Add a normal request r3. It will be blocked by r2.
+	 */
+	r3 = tevent_req_create(tctx->ev, &ds3, struct dummy_request_state);
+	ds3->e = tevent_queue_add_entry(qa,
+					tctx->ev,
+					r3,
+					queue_trigger,
+					*state);
+	ds3->i = tctx->current_tag;
+	assert_true(tctx->attach);
+	assert_true(tctx->before_handler);
+	assert_false(tctx->handler_called);
+	assert_false(tctx->detach);
+	assert_int_equal(tevent_queue_length(qa), 2);
+
+	/*
+	 * Remove the blocker r2.
+	 */
+	TALLOC_FREE(r2);
+	assert_true(tctx->attach);
+	assert_true(tctx->before_handler);
+	assert_false(tctx->handler_called);
+	assert_true(tctx->detach);
+	assert_int_equal(tevent_queue_length(qa), 1);
+
+	reset_tctx(tctx);
+
+	/* Process r3 */
+	tevent_loop_once(tctx->ev);
+
+	assert_false(tctx->attach);
+	assert_true(tctx->before_handler);
+	assert_true(tctx->handler_called);
+	assert_true(tctx->detach);
+}
+
+static void test_get_set_trace_fd_callback(void **state)
+{
+	struct test_ctx *tctx = (struct test_ctx *)(*state);
+	tevent_trace_fd_callback_t cb;
+	void *pvt;
+
+	tevent_get_trace_fd_callback(tctx->ev, &cb, &pvt);
+	assert_null(cb);
+	assert_null(pvt);
+
+	tevent_set_trace_fd_callback(tctx->ev, (tevent_trace_fd_callback_t)trace_event_cb, tctx);
+	tevent_get_trace_fd_callback(tctx->ev, &cb, &pvt);
+	assert_ptr_equal(cb, trace_event_cb);
+	assert_ptr_equal(pvt, tctx);
+
+	tevent_set_trace_fd_callback(tctx->ev, NULL, NULL);
+	tevent_get_trace_fd_callback(tctx->ev, &cb, &pvt);
+	assert_null(cb);
+	assert_null(pvt);
+}
+
+static void test_get_set_trace_timer_callback(void **state)
+{
+	struct test_ctx *tctx = (struct test_ctx *)(*state);
+	tevent_trace_timer_callback_t cb;
+	void *pvt;
+
+	tevent_get_trace_timer_callback(tctx->ev, &cb, &pvt);
+	assert_null(cb);
+	assert_null(pvt);
+
+	tevent_set_trace_timer_callback(tctx->ev, (tevent_trace_timer_callback_t)trace_event_cb, tctx);
+	tevent_get_trace_timer_callback(tctx->ev, &cb, &pvt);
+	assert_ptr_equal(cb, trace_event_cb);
+	assert_ptr_equal(pvt, tctx);
+
+	tevent_set_trace_timer_callback(tctx->ev, NULL, NULL);
+	tevent_get_trace_timer_callback(tctx->ev, &cb, &pvt);
+	assert_null(cb);
+	assert_null(pvt);
+}
+
+static void test_get_set_trace_signal_callback(void **state)
+{
+	struct test_ctx *tctx = (struct test_ctx *)(*state);
+	tevent_trace_signal_callback_t cb;
+	void *pvt;
+
+	tevent_get_trace_signal_callback(tctx->ev, &cb, &pvt);
+	assert_null(cb);
+	assert_null(pvt);
+
+	tevent_set_trace_signal_callback(tctx->ev, (tevent_trace_signal_callback_t)trace_event_cb, tctx);
+	tevent_get_trace_signal_callback(tctx->ev, &cb, &pvt);
+	assert_ptr_equal(cb, trace_event_cb);
+	assert_ptr_equal(pvt, tctx);
+
+	tevent_set_trace_signal_callback(tctx->ev, NULL, NULL);
+	tevent_get_trace_signal_callback(tctx->ev, &cb, &pvt);
+	assert_null(cb);
+	assert_null(pvt);
+}
+
+static void test_get_set_trace_immediate_callback(void **state)
+{
+	struct test_ctx *tctx = (struct test_ctx *)(*state);
+	tevent_trace_immediate_callback_t cb;
+	void *pvt;
+
+	tevent_get_trace_immediate_callback(tctx->ev, &cb, &pvt);
+	assert_null(cb);
+	assert_null(pvt);
+
+	tevent_set_trace_immediate_callback(tctx->ev, (tevent_trace_immediate_callback_t)trace_event_cb, tctx);
+	tevent_get_trace_immediate_callback(tctx->ev, &cb, &pvt);
+	assert_ptr_equal(cb, trace_event_cb);
+	assert_ptr_equal(pvt, tctx);
+
+	tevent_set_trace_immediate_callback(tctx->ev, NULL, NULL);
+	tevent_get_trace_immediate_callback(tctx->ev, &cb, &pvt);
+	assert_null(cb);
+	assert_null(pvt);
+}
+
+static void test_get_set_trace_queue_callback(void **state)
+{
+	struct test_ctx *tctx = (struct test_ctx *)(*state);
+	tevent_trace_queue_callback_t cb;
+	void *pvt;
+
+	tevent_get_trace_queue_callback(tctx->ev, &cb, &pvt);
+	assert_null(cb);
+	assert_null(pvt);
+
+	tevent_set_trace_queue_callback(tctx->ev, (tevent_trace_queue_callback_t)trace_event_cb, tctx);
+	tevent_get_trace_queue_callback(tctx->ev, &cb, &pvt);
+	assert_ptr_equal(cb, trace_event_cb);
+	assert_ptr_equal(pvt, tctx);
+
+	tevent_set_trace_queue_callback(tctx->ev, NULL, NULL);
+	tevent_get_trace_queue_callback(tctx->ev, &cb, &pvt);
+	assert_null(cb);
+	assert_null(pvt);
+}
+
+int main(int argc, char **argv)
+{
+	const struct CMUnitTest tests[] = {
+		cmocka_unit_test_setup_teardown(test_trace_event_fd__loop, test_setup, test_teardown),
+		cmocka_unit_test_setup_teardown(test_trace_event_fd__reset, test_setup, test_teardown),
+		cmocka_unit_test_setup_teardown(test_trace_event_fd__free, test_setup, test_teardown),
+		cmocka_unit_test_setup_teardown(test_trace_event_fd__free_in_handler, test_setup, test_teardown),
+		cmocka_unit_test_setup_teardown(test_trace_event_timer__loop, test_setup, test_teardown),
+		cmocka_unit_test_setup_teardown(test_trace_event_timer__reset, test_setup, test_teardown),
+		cmocka_unit_test_setup_teardown(test_trace_event_timer__free, test_setup, test_teardown),
+		cmocka_unit_test_setup_teardown(test_trace_event_timer__free_in_handler, test_setup, test_teardown),
+		cmocka_unit_test_setup_teardown(test_trace_event_signal__loop, test_setup, test_teardown),
+		cmocka_unit_test_setup_teardown(test_trace_event_signal__reset, test_setup, test_teardown),
+		cmocka_unit_test_setup_teardown(test_trace_event_signal__free, test_setup, test_teardown),
+		cmocka_unit_test_setup_teardown(test_trace_event_signal__free_in_handler, test_setup, test_teardown),
+		cmocka_unit_test_setup_teardown(test_trace_event_immediate__loop, test_setup, test_teardown),
+		cmocka_unit_test_setup_teardown(test_trace_event_immediate__reset, test_setup, test_teardown),
+		cmocka_unit_test_setup_teardown(test_trace_event_immediate__free, test_setup, test_teardown),
+		cmocka_unit_test_setup_teardown(test_trace_event_immediate__free_in_handler, test_setup, test_teardown),
+		cmocka_unit_test_setup_teardown(test_trace_event_immediate__reschedule, test_setup, test_teardown),
+		cmocka_unit_test_setup_teardown(test_trace_queue__loop, test_setup, test_teardown),
+		cmocka_unit_test_setup_teardown(test_trace_queue__extra, test_setup, test_teardown),
+		cmocka_unit_test_setup_teardown(test_get_set_trace_fd_callback, test_setup, test_teardown),
+		cmocka_unit_test_setup_teardown(test_get_set_trace_timer_callback, test_setup, test_teardown),
+		cmocka_unit_test_setup_teardown(test_get_set_trace_signal_callback, test_setup, test_teardown),
+		cmocka_unit_test_setup_teardown(test_get_set_trace_immediate_callback, test_setup, test_teardown),
+		cmocka_unit_test_setup_teardown(test_get_set_trace_queue_callback, test_setup, test_teardown),
+	};
+
+	cmocka_set_message_output(CM_OUTPUT_SUBUNIT);
+
+	return cmocka_run_group_tests(tests, NULL, NULL);
+}
diff --git a/lib/tevent/testsuite.c b/lib/tevent/testsuite.c
new file mode 100644
index 0000000..8894e44
--- /dev/null
+++ b/lib/tevent/testsuite.c
@@ -0,0 +1,1892 @@
+/* 
+   Unix SMB/CIFS implementation.
+
+   testing of the events subsystem
+
+   Copyright (C) Stefan Metzmacher 2006-2009
+   Copyright (C) Jeremy Allison    2013
+
+     ** NOTE! The following LGPL license applies to the tevent
+     ** library. This does NOT imply that all of Samba is released
+     ** under the LGPL
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 3 of the License, or (at your option) any later version.
+
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with this library; if not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+#define TEVENT_DEPRECATED 1
+#include "tevent.h"
+#include "system/filesys.h"
+#include "system/select.h"
+#include "system/network.h"
+#include "torture/torture.h"
+#include "torture/local/proto.h"
+#ifdef HAVE_PTHREAD
+#include "system/threads.h"
+#include <assert.h>
+#endif
+
+static int fde_count;
+
+static void do_read(int fd, void *buf, size_t count)
+{
+	ssize_t ret;
+
+	do {
+		ret = read(fd, buf, count);
+	} while (ret == -1 && errno == EINTR);
+}
+
+static void fde_handler_read(struct tevent_context *ev_ctx, struct tevent_fd *f,
+			uint16_t flags, void *private_data)
+{
+	int *fd = (int *)private_data;
+	char c;
+#ifdef SA_SIGINFO
+	kill(getpid(), SIGUSR1);
+#endif
+	kill(getpid(), SIGALRM);
+
+	do_read(fd[0], &c, 1);
+	fde_count++;
+}
+
+static void do_write(int fd, void *buf, size_t count)
+{
+	ssize_t ret;
+
+	do {
+		ret = write(fd, buf, count);
+	} while (ret == -1 && errno == EINTR);
+}
+
+static void fde_handler_write(struct tevent_context *ev_ctx, struct tevent_fd *f,
+			uint16_t flags, void *private_data)
+{
+	int *fd = (int *)private_data;
+	char c = 0;
+
+	do_write(fd[1], &c, 1);
+}
+
+
+/* This will only fire if the fd's returned from pipe() are bi-directional. */
+static void fde_handler_read_1(struct tevent_context *ev_ctx, struct tevent_fd *f,
+			uint16_t flags, void *private_data)
+{
+	int *fd = (int *)private_data;
+	char c;
+#ifdef SA_SIGINFO
+	kill(getpid(), SIGUSR1);
+#endif
+	kill(getpid(), SIGALRM);
+
+	do_read(fd[1], &c, 1);
+	fde_count++;
+}
+
+/* This will only fire if the fd's returned from pipe() are bi-directional. */
+static void fde_handler_write_1(struct tevent_context *ev_ctx, struct tevent_fd *f,
+			uint16_t flags, void *private_data)
+{
+	int *fd = (int *)private_data;
+	char c = 0;
+	do_write(fd[0], &c, 1);
+}
+
+static void finished_handler(struct tevent_context *ev_ctx, struct tevent_timer *te,
+			     struct timeval tval, void *private_data)
+{
+	int *finished = (int *)private_data;
+	(*finished) = 1;
+}
+
+static void count_handler(struct tevent_context *ev_ctx, struct tevent_signal *te,
+			  int signum, int count, void *info, void *private_data)
+{
+	int *countp = (int *)private_data;
+	(*countp) += count;
+}
+
+static bool test_event_context(struct torture_context *test,
+			       const void *test_data)
+{
+	struct tevent_context *ev_ctx;
+	int fd[2] = { -1, -1 };
+	const char *backend = (const char *)test_data;
+	int alarm_count=0, info_count=0;
+	struct tevent_fd *fde_read;
+	struct tevent_fd *fde_read_1;
+	struct tevent_fd *fde_write;
+	struct tevent_fd *fde_write_1;
+#ifdef SA_RESTART
+	struct tevent_signal *se1 = NULL;
+#endif
+#ifdef SA_RESETHAND
+	struct tevent_signal *se2 = NULL;
+#endif
+#ifdef SA_SIGINFO
+	struct tevent_signal *se3 = NULL;
+#endif
+	int finished=0;
+	struct timeval t;
+	int ret;
+
+	ev_ctx = tevent_context_init_byname(test, backend);
+	if (ev_ctx == NULL) {
+		torture_comment(test, "event backend '%s' not supported\n", backend);
+		return true;
+	}
+
+	torture_comment(test, "backend '%s' - %s\n",
+			backend, __FUNCTION__);
+
+	/* reset globals */
+	fde_count = 0;
+
+	/* create a pipe */
+	ret = pipe(fd);
+	torture_assert_int_equal(test, ret, 0, "pipe failed");
+
+	fde_read = tevent_add_fd(ev_ctx, ev_ctx, fd[0], TEVENT_FD_READ,
+			    fde_handler_read, fd);
+	fde_write_1 = tevent_add_fd(ev_ctx, ev_ctx, fd[0], TEVENT_FD_WRITE,
+			    fde_handler_write_1, fd);
+
+	fde_write = tevent_add_fd(ev_ctx, ev_ctx, fd[1], TEVENT_FD_WRITE,
+			    fde_handler_write, fd);
+	fde_read_1 = tevent_add_fd(ev_ctx, ev_ctx, fd[1], TEVENT_FD_READ,
+			    fde_handler_read_1, fd);
+
+	tevent_fd_set_auto_close(fde_read);
+	tevent_fd_set_auto_close(fde_write);
+
+	tevent_add_timer(ev_ctx, ev_ctx, timeval_current_ofs(2,0),
+			 finished_handler, &finished);
+
+#ifdef SA_RESTART
+	se1 = tevent_add_signal(ev_ctx, ev_ctx, SIGALRM, SA_RESTART, count_handler, &alarm_count);
+	torture_assert(test, se1 != NULL, "failed to setup se1");
+#endif
+#ifdef SA_RESETHAND
+	se2 = tevent_add_signal(ev_ctx, ev_ctx, SIGALRM, SA_RESETHAND, count_handler, &alarm_count);
+	torture_assert(test, se2 != NULL, "failed to setup se2");
+#endif
+#ifdef SA_SIGINFO
+	se3 = tevent_add_signal(ev_ctx, ev_ctx, SIGUSR1, SA_SIGINFO, count_handler, &info_count);
+	torture_assert(test, se3 != NULL, "failed to setup se3");
+#endif
+
+	t = timeval_current();
+	while (!finished) {
+		errno = 0;
+		if (tevent_loop_once(ev_ctx) == -1) {
+			TALLOC_FREE(ev_ctx);
+			torture_fail(test, talloc_asprintf(test, "Failed event loop %s\n", strerror(errno)));
+			return false;
+		}
+	}
+
+	talloc_free(fde_read_1);
+	talloc_free(fde_write_1);
+	talloc_free(fde_read);
+	talloc_free(fde_write);
+
+	while (alarm_count < fde_count+1) {
+		if (tevent_loop_once(ev_ctx) == -1) {
+			break;
+		}
+	}
+
+	torture_comment(test, "Got %.2f pipe events/sec\n", fde_count/timeval_elapsed(&t));
+
+#ifdef SA_RESTART
+	talloc_free(se1);
+#endif
+
+	torture_assert_int_equal(test, alarm_count, 1+fde_count, "alarm count mismatch");
+
+#ifdef SA_RESETHAND
+	/*
+	 * we do not call talloc_free(se2)
+	 * because it is already gone,
+	 * after triggering the event handler.
+	 */
+#endif
+
+#ifdef SA_SIGINFO
+	talloc_free(se3);
+	torture_assert_int_equal(test, info_count, fde_count, "info count mismatch");
+#endif
+
+	talloc_free(ev_ctx);
+
+	return true;
+}
+
+struct test_event_fd1_state {
+	struct torture_context *tctx;
+	const char *backend;
+	struct tevent_context *ev;
+	int sock[2];
+	struct tevent_timer *te;
+	struct tevent_fd *fde0;
+	struct tevent_fd *fde1;
+	bool got_write;
+	bool got_read;
+	bool drain;
+	bool drain_done;
+	unsigned loop_count;
+	bool finished;
+	const char *error;
+};
+
+static void test_event_fd1_fde_handler(struct tevent_context *ev_ctx,
+				       struct tevent_fd *fde,
+				       uint16_t flags,
+				       void *private_data)
+{
+	struct test_event_fd1_state *state =
+		(struct test_event_fd1_state *)private_data;
+
+	if (state->drain_done) {
+		state->finished = true;
+		state->error = __location__;
+		return;
+	}
+
+	if (state->drain) {
+		ssize_t ret;
+		uint8_t c = 0;
+
+		if (!(flags & TEVENT_FD_READ)) {
+			state->finished = true;
+			state->error = __location__;
+			return;
+		}
+
+		ret = read(state->sock[0], &c, 1);
+		if (ret == 1) {
+			return;
+		}
+
+		/*
+		 * end of test...
+		 */
+		tevent_fd_set_flags(fde, 0);
+		state->drain_done = true;
+		return;
+	}
+
+	if (!state->got_write) {
+		uint8_t c = 0;
+
+		if (flags != TEVENT_FD_WRITE) {
+			state->finished = true;
+			state->error = __location__;
+			return;
+		}
+		state->got_write = true;
+
+		/*
+		 * we write to the other socket...
+		 */
+		do_write(state->sock[1], &c, 1);
+		TEVENT_FD_NOT_WRITEABLE(fde);
+		TEVENT_FD_READABLE(fde);
+		return;
+	}
+
+	if (!state->got_read) {
+		if (flags != TEVENT_FD_READ) {
+			state->finished = true;
+			state->error = __location__;
+			return;
+		}
+		state->got_read = true;
+
+		TEVENT_FD_NOT_READABLE(fde);
+		return;
+	}
+
+	state->finished = true;
+	state->error = __location__;
+	return;
+}
+
+static void test_event_fd1_finished(struct tevent_context *ev_ctx,
+				    struct tevent_timer *te,
+				    struct timeval tval,
+				    void *private_data)
+{
+	struct test_event_fd1_state *state =
+		(struct test_event_fd1_state *)private_data;
+
+	if (state->drain_done) {
+		state->finished = true;
+		return;
+	}
+
+	if (!state->got_write) {
+		state->finished = true;
+		state->error = __location__;
+		return;
+	}
+
+	if (!state->got_read) {
+		state->finished = true;
+		state->error = __location__;
+		return;
+	}
+
+	state->loop_count++;
+	if (state->loop_count > 3) {
+		state->finished = true;
+		state->error = __location__;
+		return;
+	}
+
+	state->got_write = false;
+	state->got_read = false;
+
+	tevent_fd_set_flags(state->fde0, TEVENT_FD_WRITE);
+
+	if (state->loop_count > 2) {
+		state->drain = true;
+		TALLOC_FREE(state->fde1);
+		TEVENT_FD_READABLE(state->fde0);
+	}
+
+	state->te = tevent_add_timer(state->ev, state->ev,
+				    timeval_current_ofs(0,2000),
+				    test_event_fd1_finished, state);
+}
+
+static bool test_event_fd1(struct torture_context *tctx,
+			   const void *test_data)
+{
+	struct test_event_fd1_state state;
+	int ret;
+
+	ZERO_STRUCT(state);
+	state.tctx = tctx;
+	state.backend = (const char *)test_data;
+
+	state.ev = tevent_context_init_byname(tctx, state.backend);
+	if (state.ev == NULL) {
+		torture_skip(tctx, talloc_asprintf(tctx,
+			     "event backend '%s' not supported\n",
+			     state.backend));
+		return true;
+	}
+
+	tevent_set_debug_stderr(state.ev);
+	torture_comment(tctx, "backend '%s' - %s\n",
+			state.backend, __FUNCTION__);
+
+	/*
+	 * This tests the following:
+	 *
+	 * It monitors the state of state.sock[0]
+	 * with tevent_fd, but we never read/write on state.sock[0]
+	 * while state.sock[1] * is only used to write a few bytes.
+	 *
+	 * We have a loop:
+	 *   - we wait only for TEVENT_FD_WRITE on state.sock[0]
+	 *   - we write 1 byte to state.sock[1]
+	 *   - we wait only for TEVENT_FD_READ on state.sock[0]
+	 *   - we disable events on state.sock[0]
+	 *   - the timer event restarts the loop
+	 * Then we close state.sock[1]
+	 * We have a loop:
+	 *   - we wait for TEVENT_FD_READ/WRITE on state.sock[0]
+	 *   - we try to read 1 byte
+	 *   - if the read gets an error of returns 0
+	 *     we disable the event handler
+	 *   - the timer finishes the test
+	 */
+	state.sock[0] = -1;
+	state.sock[1] = -1;
+
+	ret = socketpair(AF_UNIX, SOCK_STREAM, 0, state.sock);
+	torture_assert(tctx, ret == 0, "socketpair() failed");
+
+	state.te = tevent_add_timer(state.ev, state.ev,
+				    timeval_current_ofs(0,10000),
+				    test_event_fd1_finished, &state);
+	state.fde0 = tevent_add_fd(state.ev, state.ev,
+				   state.sock[0], TEVENT_FD_WRITE,
+				   test_event_fd1_fde_handler, &state);
+	/* state.fde1 is only used to auto close */
+	state.fde1 = tevent_add_fd(state.ev, state.ev,
+				   state.sock[1], 0,
+				   test_event_fd1_fde_handler, &state);
+
+	tevent_fd_set_auto_close(state.fde0);
+	tevent_fd_set_auto_close(state.fde1);
+
+	while (!state.finished) {
+		errno = 0;
+		if (tevent_loop_once(state.ev) == -1) {
+			talloc_free(state.ev);
+			torture_fail(tctx, talloc_asprintf(tctx,
+				     "Failed event loop %s\n",
+				     strerror(errno)));
+		}
+	}
+
+	talloc_free(state.ev);
+
+	torture_assert(tctx, state.error == NULL, talloc_asprintf(tctx,
+		       "%s", state.error));
+
+	return true;
+}
+
+struct test_event_fd2_state {
+	struct torture_context *tctx;
+	const char *backend;
+	struct tevent_context *ev;
+	struct tevent_timer *te;
+	struct test_event_fd2_sock {
+		struct test_event_fd2_state *state;
+		int fd;
+		struct tevent_fd *fde;
+		size_t num_written;
+		size_t num_read;
+		bool got_full;
+	} sock0, sock1;
+	bool finished;
+	const char *error;
+};
+
+static void test_event_fd2_sock_handler(struct tevent_context *ev_ctx,
+					struct tevent_fd *fde,
+					uint16_t flags,
+					void *private_data)
+{
+	struct test_event_fd2_sock *cur_sock =
+		(struct test_event_fd2_sock *)private_data;
+	struct test_event_fd2_state *state = cur_sock->state;
+	struct test_event_fd2_sock *oth_sock = NULL;
+	uint8_t v = 0, c;
+	ssize_t ret;
+
+	if (cur_sock == &state->sock0) {
+		oth_sock = &state->sock1;
+	} else {
+		oth_sock = &state->sock0;
+	}
+
+	if (oth_sock->num_written == 1) {
+		if (flags != (TEVENT_FD_READ | TEVENT_FD_WRITE)) {
+			state->finished = true;
+			state->error = __location__;
+			return;
+		}
+	}
+
+	if (cur_sock->num_read == oth_sock->num_written) {
+		state->finished = true;
+		state->error = __location__;
+		return;
+	}
+
+	if (!(flags & TEVENT_FD_READ)) {
+		state->finished = true;
+		state->error = __location__;
+		return;
+	}
+
+	if (oth_sock->num_read >= PIPE_BUF) {
+		/*
+		 * On Linux we become writable once we've read
+		 * one byte. On Solaris we only become writable
+		 * again once we've read 4096 bytes. PIPE_BUF
+		 * is probably a safe bet to test against.
+		 *
+		 * There should be room to write a byte again
+		 */
+		if (!(flags & TEVENT_FD_WRITE)) {
+			state->finished = true;
+			state->error = __location__;
+			return;
+		}
+	}
+
+	if ((flags & TEVENT_FD_WRITE) && !cur_sock->got_full) {
+		v = (uint8_t)cur_sock->num_written;
+		ret = write(cur_sock->fd, &v, 1);
+		if (ret != 1) {
+			state->finished = true;
+			state->error = __location__;
+			return;
+		}
+		cur_sock->num_written++;
+		if (cur_sock->num_written > 0x80000000) {
+			state->finished = true;
+			state->error = __location__;
+			return;
+		}
+		return;
+	}
+
+	if (!cur_sock->got_full) {
+		cur_sock->got_full = true;
+
+		if (!oth_sock->got_full) {
+			/*
+			 * cur_sock is full,
+			 * lets wait for oth_sock
+			 * to be filled
+			 */
+			tevent_fd_set_flags(cur_sock->fde, 0);
+			return;
+		}
+
+		/*
+		 * oth_sock waited for cur_sock,
+		 * lets restart it
+		 */
+		tevent_fd_set_flags(oth_sock->fde,
+				    TEVENT_FD_READ|TEVENT_FD_WRITE);
+	}
+
+	ret = read(cur_sock->fd, &v, 1);
+	if (ret != 1) {
+		state->finished = true;
+		state->error = __location__;
+		return;
+	}
+	c = (uint8_t)cur_sock->num_read;
+	if (c != v) {
+		state->finished = true;
+		state->error = __location__;
+		return;
+	}
+	cur_sock->num_read++;
+
+	if (cur_sock->num_read < oth_sock->num_written) {
+		/* there is more to read */
+		return;
+	}
+	/*
+	 * we read everything, we need to remove TEVENT_FD_WRITE
+	 * to avoid spinning
+	 */
+	TEVENT_FD_NOT_WRITEABLE(cur_sock->fde);
+
+	if (oth_sock->num_read == cur_sock->num_written) {
+		/*
+		 * both directions are finished
+		 */
+		state->finished = true;
+	}
+
+	return;
+}
+
+static void test_event_fd2_finished(struct tevent_context *ev_ctx,
+				    struct tevent_timer *te,
+				    struct timeval tval,
+				    void *private_data)
+{
+	struct test_event_fd2_state *state =
+		(struct test_event_fd2_state *)private_data;
+
+	/*
+	 * this should never be triggered
+	 */
+	state->finished = true;
+	state->error = __location__;
+}
+
+static bool test_event_fd2(struct torture_context *tctx,
+			   const void *test_data)
+{
+	struct test_event_fd2_state state;
+	int sock[2];
+	uint8_t c = 0;
+
+	ZERO_STRUCT(state);
+	state.tctx = tctx;
+	state.backend = (const char *)test_data;
+
+	state.ev = tevent_context_init_byname(tctx, state.backend);
+	if (state.ev == NULL) {
+		torture_skip(tctx, talloc_asprintf(tctx,
+			     "event backend '%s' not supported\n",
+			     state.backend));
+		return true;
+	}
+
+	tevent_set_debug_stderr(state.ev);
+	torture_comment(tctx, "backend '%s' - %s\n",
+			state.backend, __FUNCTION__);
+
+	/*
+	 * This tests the following
+	 *
+	 * - We write 1 byte to each socket
+	 * - We wait for TEVENT_FD_READ/WRITE on both sockets
+	 * - When we get TEVENT_FD_WRITE we write 1 byte
+	 *   until both socket buffers are full, which
+	 *   means both sockets only get TEVENT_FD_READ.
+	 * - Then we read 1 byte until we have consumed
+	 *   all bytes the other end has written.
+	 */
+	sock[0] = -1;
+	sock[1] = -1;
+	socketpair(AF_UNIX, SOCK_STREAM, 0, sock);
+
+	/*
+	 * the timer should never expire
+	 */
+	state.te = tevent_add_timer(state.ev, state.ev,
+				    timeval_current_ofs(600, 0),
+				    test_event_fd2_finished, &state);
+	state.sock0.state = &state;
+	state.sock0.fd = sock[0];
+	state.sock0.fde = tevent_add_fd(state.ev, state.ev,
+					state.sock0.fd,
+					TEVENT_FD_READ | TEVENT_FD_WRITE,
+					test_event_fd2_sock_handler,
+					&state.sock0);
+	state.sock1.state = &state;
+	state.sock1.fd = sock[1];
+	state.sock1.fde = tevent_add_fd(state.ev, state.ev,
+					state.sock1.fd,
+					TEVENT_FD_READ | TEVENT_FD_WRITE,
+					test_event_fd2_sock_handler,
+					&state.sock1);
+
+	tevent_fd_set_auto_close(state.sock0.fde);
+	tevent_fd_set_auto_close(state.sock1.fde);
+
+	do_write(state.sock0.fd, &c, 1);
+	state.sock0.num_written++;
+	do_write(state.sock1.fd, &c, 1);
+	state.sock1.num_written++;
+
+	while (!state.finished) {
+		errno = 0;
+		if (tevent_loop_once(state.ev) == -1) {
+			talloc_free(state.ev);
+			torture_fail(tctx, talloc_asprintf(tctx,
+				     "Failed event loop %s\n",
+				     strerror(errno)));
+		}
+	}
+
+	talloc_free(state.ev);
+
+	torture_assert(tctx, state.error == NULL, talloc_asprintf(tctx,
+		       "%s", state.error));
+
+	return true;
+}
+
+struct test_wrapper_state {
+	struct torture_context *tctx;
+	int num_events;
+	int num_wrap_handlers;
+};
+
+static bool test_wrapper_before_use(struct tevent_context *wrap_ev,
+				    void *private_data,
+				    struct tevent_context *main_ev,
+				    const char *location)
+{
+	struct test_wrapper_state *state =
+		talloc_get_type_abort(private_data,
+		struct test_wrapper_state);
+
+	torture_comment(state->tctx, "%s\n", __func__);
+	state->num_wrap_handlers++;
+	return true;
+}
+
+static void test_wrapper_after_use(struct tevent_context *wrap_ev,
+				   void *private_data,
+				   struct tevent_context *main_ev,
+				   const char *location)
+{
+	struct test_wrapper_state *state =
+		talloc_get_type_abort(private_data,
+		struct test_wrapper_state);
+
+	torture_comment(state->tctx, "%s\n", __func__);
+	state->num_wrap_handlers++;
+}
+
+static void test_wrapper_before_fd_handler(struct tevent_context *wrap_ev,
+					   void *private_data,
+					   struct tevent_context *main_ev,
+					   struct tevent_fd *fde,
+					   uint16_t flags,
+					   const char *handler_name,
+					   const char *location)
+{
+	struct test_wrapper_state *state =
+		talloc_get_type_abort(private_data,
+		struct test_wrapper_state);
+
+	torture_comment(state->tctx, "%s\n", __func__);
+	state->num_wrap_handlers++;
+}
+
+static void test_wrapper_after_fd_handler(struct tevent_context *wrap_ev,
+					  void *private_data,
+					  struct tevent_context *main_ev,
+					  struct tevent_fd *fde,
+					  uint16_t flags,
+					  const char *handler_name,
+					  const char *location)
+{
+	struct test_wrapper_state *state =
+		talloc_get_type_abort(private_data,
+		struct test_wrapper_state);
+
+	torture_comment(state->tctx, "%s\n", __func__);
+	state->num_wrap_handlers++;
+}
+
+static void test_wrapper_before_timer_handler(struct tevent_context *wrap_ev,
+					      void *private_data,
+					      struct tevent_context *main_ev,
+					      struct tevent_timer *te,
+					      struct timeval requested_time,
+					      struct timeval trigger_time,
+					      const char *handler_name,
+					      const char *location)
+{
+	struct test_wrapper_state *state =
+		talloc_get_type_abort(private_data,
+		struct test_wrapper_state);
+
+	torture_comment(state->tctx, "%s\n", __func__);
+	state->num_wrap_handlers++;
+}
+
+static void test_wrapper_after_timer_handler(struct tevent_context *wrap_ev,
+					     void *private_data,
+					     struct tevent_context *main_ev,
+					     struct tevent_timer *te,
+					     struct timeval requested_time,
+					     struct timeval trigger_time,
+					     const char *handler_name,
+					     const char *location)
+{
+	struct test_wrapper_state *state =
+		talloc_get_type_abort(private_data,
+		struct test_wrapper_state);
+
+	torture_comment(state->tctx, "%s\n", __func__);
+	state->num_wrap_handlers++;
+}
+
+static void test_wrapper_before_immediate_handler(struct tevent_context *wrap_ev,
+						  void *private_data,
+						  struct tevent_context *main_ev,
+						  struct tevent_immediate *im,
+						  const char *handler_name,
+						  const char *location)
+{
+	struct test_wrapper_state *state =
+		talloc_get_type_abort(private_data,
+		struct test_wrapper_state);
+
+	torture_comment(state->tctx, "%s\n", __func__);
+	state->num_wrap_handlers++;
+}
+
+static void test_wrapper_after_immediate_handler(struct tevent_context *wrap_ev,
+						 void *private_data,
+						 struct tevent_context *main_ev,
+						 struct tevent_immediate *im,
+						 const char *handler_name,
+						 const char *location)
+{
+	struct test_wrapper_state *state =
+		talloc_get_type_abort(private_data,
+		struct test_wrapper_state);
+
+	torture_comment(state->tctx, "%s\n", __func__);
+	state->num_wrap_handlers++;
+}
+
+static void test_wrapper_before_signal_handler(struct tevent_context *wrap_ev,
+					       void *private_data,
+					       struct tevent_context *main_ev,
+					       struct tevent_signal *se,
+					       int signum,
+					       int count,
+					       void *siginfo,
+					       const char *handler_name,
+					       const char *location)
+{
+	struct test_wrapper_state *state =
+		talloc_get_type_abort(private_data,
+		struct test_wrapper_state);
+
+	torture_comment(state->tctx, "%s\n", __func__);
+	state->num_wrap_handlers++;
+}
+
+static void test_wrapper_after_signal_handler(struct tevent_context *wrap_ev,
+					      void *private_data,
+					      struct tevent_context *main_ev,
+					      struct tevent_signal *se,
+					      int signum,
+					      int count,
+					      void *siginfo,
+					      const char *handler_name,
+					      const char *location)
+{
+	struct test_wrapper_state *state =
+		talloc_get_type_abort(private_data,
+		struct test_wrapper_state);
+
+	torture_comment(state->tctx, "%s\n", __func__);
+	state->num_wrap_handlers++;
+}
+
+static const struct tevent_wrapper_ops test_wrapper_ops = {
+	.name				= "test_wrapper",
+	.before_use			= test_wrapper_before_use,
+	.after_use			= test_wrapper_after_use,
+	.before_fd_handler		= test_wrapper_before_fd_handler,
+	.after_fd_handler		= test_wrapper_after_fd_handler,
+	.before_timer_handler		= test_wrapper_before_timer_handler,
+	.after_timer_handler		= test_wrapper_after_timer_handler,
+	.before_immediate_handler	= test_wrapper_before_immediate_handler,
+	.after_immediate_handler	= test_wrapper_after_immediate_handler,
+	.before_signal_handler		= test_wrapper_before_signal_handler,
+	.after_signal_handler		= test_wrapper_after_signal_handler,
+};
+
+static void test_wrapper_timer_handler(struct tevent_context *ev,
+				       struct tevent_timer *te,
+				       struct timeval tv,
+				       void *private_data)
+{
+	struct test_wrapper_state *state =
+		(struct test_wrapper_state *)private_data;
+
+
+	torture_comment(state->tctx, "timer handler\n");
+
+	state->num_events++;
+	talloc_free(te);
+	return;
+}
+
+static void test_wrapper_fd_handler(struct tevent_context *ev,
+				    struct tevent_fd *fde,
+				    unsigned short fd_flags,
+				    void *private_data)
+{
+	struct test_wrapper_state *state =
+		(struct test_wrapper_state *)private_data;
+
+	torture_comment(state->tctx, "fd handler\n");
+
+	state->num_events++;
+	talloc_free(fde);
+	return;
+}
+
+static void test_wrapper_immediate_handler(struct tevent_context *ev,
+					   struct tevent_immediate *im,
+					   void *private_data)
+{
+	struct test_wrapper_state *state =
+		(struct test_wrapper_state *)private_data;
+
+	state->num_events++;
+	talloc_free(im);
+
+	torture_comment(state->tctx, "immediate handler\n");
+	return;
+}
+
+static void test_wrapper_signal_handler(struct tevent_context *ev,
+					struct tevent_signal *se,
+					int signum,
+					int count,
+					void *siginfo,
+					void *private_data)
+{
+	struct test_wrapper_state *state =
+		(struct test_wrapper_state *)private_data;
+
+	torture_comment(state->tctx, "signal handler\n");
+
+	state->num_events++;
+	talloc_free(se);
+	return;
+}
+
+static bool test_wrapper(struct torture_context *tctx,
+			 const void *test_data)
+{
+	struct test_wrapper_state *state = NULL;
+	int sock[2] = { -1, -1};
+	uint8_t c = 0;
+	const int num_events = 4;
+	const char *backend = (const char *)test_data;
+	struct tevent_context *ev = NULL;
+	struct tevent_context *wrap_ev = NULL;
+	struct tevent_fd *fde = NULL;
+	struct tevent_timer *te = NULL;
+	struct tevent_signal *se = NULL;
+	struct tevent_immediate *im = NULL;
+	int ret;
+	bool ok = false;
+	bool ret2;
+
+	ev = tevent_context_init_byname(tctx, backend);
+	if (ev == NULL) {
+		torture_skip(tctx, talloc_asprintf(tctx,
+			     "event backend '%s' not supported\n",
+			     backend));
+		return true;
+	}
+
+	tevent_set_debug_stderr(ev);
+	torture_comment(tctx, "tevent backend '%s'\n", backend);
+
+	wrap_ev = tevent_context_wrapper_create(
+		ev, ev,	&test_wrapper_ops, &state, struct test_wrapper_state);
+	torture_assert_not_null_goto(tctx, wrap_ev, ok, done,
+				     "tevent_context_wrapper_create failed\n");
+	*state = (struct test_wrapper_state) {
+		.tctx = tctx,
+	};
+
+	ret = socketpair(AF_UNIX, SOCK_STREAM, 0, sock);
+	torture_assert_goto(tctx, ret == 0, ok, done, "socketpair failed\n");
+
+	te = tevent_add_timer(wrap_ev, wrap_ev,
+			      timeval_current_ofs(0, 0),
+			      test_wrapper_timer_handler, state);
+	torture_assert_not_null_goto(tctx, te, ok, done,
+				     "tevent_add_timer failed\n");
+
+	fde = tevent_add_fd(wrap_ev, wrap_ev,
+			    sock[1],
+			    TEVENT_FD_READ,
+			    test_wrapper_fd_handler,
+			    state);
+	torture_assert_not_null_goto(tctx, fde, ok, done,
+				     "tevent_add_fd failed\n");
+
+	im = tevent_create_immediate(wrap_ev);
+	torture_assert_not_null_goto(tctx, im, ok, done,
+				     "tevent_create_immediate failed\n");
+
+	se = tevent_add_signal(wrap_ev, wrap_ev,
+			       SIGUSR1,
+			       0,
+			       test_wrapper_signal_handler,
+			       state);
+	torture_assert_not_null_goto(tctx, se, ok, done,
+				     "tevent_add_signal failed\n");
+
+	do_write(sock[0], &c, 1);
+	kill(getpid(), SIGUSR1);
+	tevent_schedule_immediate(im,
+				  wrap_ev,
+				  test_wrapper_immediate_handler,
+				  state);
+
+	ret2 = tevent_context_push_use(wrap_ev);
+	torture_assert_goto(tctx, ret2, ok, done, "tevent_context_push_use(wrap_ev) failed\n");
+	ret2 = tevent_context_push_use(ev);
+	torture_assert_goto(tctx, ret2, ok, pop_use, "tevent_context_push_use(ev) failed\n");
+	tevent_context_pop_use(ev);
+	tevent_context_pop_use(wrap_ev);
+
+	ret = tevent_loop_wait(ev);
+	torture_assert_int_equal_goto(tctx, ret, 0, ok, done, "tevent_loop_wait failed\n");
+
+	torture_comment(tctx, "Num events: %d\n", state->num_events);
+	torture_comment(tctx, "Num wrap handlers: %d\n",
+			state->num_wrap_handlers);
+
+	torture_assert_int_equal_goto(tctx, state->num_events, num_events, ok, done,
+				      "Wrong event count\n");
+	torture_assert_int_equal_goto(tctx, state->num_wrap_handlers,
+				      num_events*2+2,
+				      ok, done, "Wrong wrapper count\n");
+
+	ok = true;
+
+done:
+	TALLOC_FREE(wrap_ev);
+	TALLOC_FREE(ev);
+
+	if (sock[0] != -1) {
+		close(sock[0]);
+	}
+	if (sock[1] != -1) {
+		close(sock[1]);
+	}
+	return ok;
+pop_use:
+	tevent_context_pop_use(wrap_ev);
+	goto done;
+}
+
+static void test_free_wrapper_signal_handler(struct tevent_context *ev,
+					struct tevent_signal *se,
+					int signum,
+					int count,
+					void *siginfo,
+					void *private_data)
+{
+	struct torture_context *tctx =
+		talloc_get_type_abort(private_data,
+		struct torture_context);
+
+	torture_comment(tctx, "signal handler\n");
+
+	talloc_free(se);
+
+	/*
+	 * signal handlers have highest priority in tevent, so this signal
+	 * handler will always be started before the other handlers
+	 * below. Freeing the (wrapper) event context here tests that the
+	 * wrapper implementation correclty handles the wrapper ev going away
+	 * with pending events.
+	 */
+	talloc_free(ev);
+	return;
+}
+
+static void test_free_wrapper_fd_handler(struct tevent_context *ev,
+					 struct tevent_fd *fde,
+					 unsigned short fd_flags,
+					 void *private_data)
+{
+	/*
+	 * This should never be called as
+	 * test_free_wrapper_signal_handler()
+	 * already destroyed the wrapper tevent_context.
+	 */
+	abort();
+}
+
+static void test_free_wrapper_immediate_handler(struct tevent_context *ev,
+					   struct tevent_immediate *im,
+					   void *private_data)
+{
+	/*
+	 * This should never be called as
+	 * test_free_wrapper_signal_handler()
+	 * already destroyed the wrapper tevent_context.
+	 */
+	abort();
+}
+
+static void test_free_wrapper_timer_handler(struct tevent_context *ev,
+				       struct tevent_timer *te,
+				       struct timeval tv,
+				       void *private_data)
+{
+	/*
+	 * This should never be called as
+	 * test_free_wrapper_signal_handler()
+	 * already destroyed the wrapper tevent_context.
+	 */
+	abort();
+}
+
+static bool test_free_wrapper(struct torture_context *tctx,
+			      const void *test_data)
+{
+	struct test_wrapper_state *state = NULL;
+	int sock[2] = { -1, -1};
+	uint8_t c = 0;
+	const char *backend = (const char *)test_data;
+	TALLOC_CTX *frame = talloc_stackframe();
+	struct tevent_context *ev = NULL;
+	struct tevent_context *wrap_ev = NULL;
+	struct tevent_fd *fde = NULL;
+	struct tevent_timer *te = NULL;
+	struct tevent_signal *se = NULL;
+	struct tevent_immediate *im = NULL;
+	int ret;
+	bool ok = false;
+
+	ev = tevent_context_init_byname(frame, backend);
+	if (ev == NULL) {
+		torture_skip(tctx, talloc_asprintf(tctx,
+			     "event backend '%s' not supported\n",
+			     backend));
+		return true;
+	}
+
+	tevent_set_debug_stderr(ev);
+	torture_comment(tctx, "tevent backend '%s'\n", backend);
+
+	wrap_ev = tevent_context_wrapper_create(
+		ev, ev,	&test_wrapper_ops, &state, struct test_wrapper_state);
+	torture_assert_not_null_goto(tctx, wrap_ev, ok, done,
+				     "tevent_context_wrapper_create failed\n");
+	*state = (struct test_wrapper_state) {
+		.tctx = tctx,
+	};
+
+	ret = socketpair(AF_UNIX, SOCK_STREAM, 0, sock);
+	torture_assert_goto(tctx, ret == 0, ok, done, "socketpair failed\n");
+
+	fde = tevent_add_fd(wrap_ev, frame,
+			    sock[1],
+			    TEVENT_FD_READ,
+			    test_free_wrapper_fd_handler,
+			    NULL);
+	torture_assert_not_null_goto(tctx, fde, ok, done,
+				     "tevent_add_fd failed\n");
+
+	te = tevent_add_timer(wrap_ev, frame,
+			      timeval_current_ofs(0, 0),
+			      test_free_wrapper_timer_handler, NULL);
+	torture_assert_not_null_goto(tctx, te, ok, done,
+				     "tevent_add_timer failed\n");
+
+	im = tevent_create_immediate(frame);
+	torture_assert_not_null_goto(tctx, im, ok, done,
+				     "tevent_create_immediate failed\n");
+
+	se = tevent_add_signal(wrap_ev, frame,
+			       SIGUSR1,
+			       0,
+			       test_free_wrapper_signal_handler,
+			       tctx);
+	torture_assert_not_null_goto(tctx, se, ok, done,
+				     "tevent_add_signal failed\n");
+
+	do_write(sock[0], &c, 1);
+	kill(getpid(), SIGUSR1);
+	tevent_schedule_immediate(im,
+				  wrap_ev,
+				  test_free_wrapper_immediate_handler,
+				  NULL);
+
+	ret = tevent_loop_wait(ev);
+	torture_assert_goto(tctx, ret == 0, ok, done, "tevent_loop_wait failed\n");
+
+	ok = true;
+
+done:
+	TALLOC_FREE(frame);
+
+	if (sock[0] != -1) {
+		close(sock[0]);
+	}
+	if (sock[1] != -1) {
+		close(sock[1]);
+	}
+	return ok;
+}
+
+#ifdef HAVE_PTHREAD
+
+static pthread_mutex_t threaded_mutex = PTHREAD_MUTEX_INITIALIZER;
+static bool do_shutdown = false;
+
+static void test_event_threaded_lock(void)
+{
+	int ret;
+	ret = pthread_mutex_lock(&threaded_mutex);
+	assert(ret == 0);
+}
+
+static void test_event_threaded_unlock(void)
+{
+	int ret;
+	ret = pthread_mutex_unlock(&threaded_mutex);
+	assert(ret == 0);
+}
+
+static void test_event_threaded_trace(enum tevent_trace_point point,
+				      void *private_data)
+{
+	switch (point) {
+	case TEVENT_TRACE_BEFORE_WAIT:
+		test_event_threaded_unlock();
+		break;
+	case TEVENT_TRACE_AFTER_WAIT:
+		test_event_threaded_lock();
+		break;
+	case TEVENT_TRACE_BEFORE_LOOP_ONCE:
+	case TEVENT_TRACE_AFTER_LOOP_ONCE:
+		break;
+	}
+}
+
+static void test_event_threaded_timer(struct tevent_context *ev,
+				      struct tevent_timer *te,
+				      struct timeval current_time,
+				      void *private_data)
+{
+	return;
+}
+
+static void *test_event_poll_thread(void *private_data)
+{
+	struct tevent_context *ev = (struct tevent_context *)private_data;
+
+	test_event_threaded_lock();
+
+	while (true) {
+		int ret;
+		ret = tevent_loop_once(ev);
+		assert(ret == 0);
+		if (do_shutdown) {
+			test_event_threaded_unlock();
+			return NULL;
+		}
+	}
+
+}
+
+static void test_event_threaded_read_handler(struct tevent_context *ev,
+					     struct tevent_fd *fde,
+					     uint16_t flags,
+					     void *private_data)
+{
+	int *pfd = (int *)private_data;
+	char c;
+	ssize_t nread;
+
+	if ((flags & TEVENT_FD_READ) == 0) {
+		return;
+	}
+
+	do {
+		nread = read(*pfd, &c, 1);
+	} while ((nread == -1) && (errno == EINTR));
+
+	assert(nread == 1);
+}
+
+static bool test_event_context_threaded(struct torture_context *test,
+					const void *test_data)
+{
+	struct tevent_context *ev;
+	struct tevent_timer *te;
+	struct tevent_fd *fde;
+	pthread_t poll_thread;
+	int fds[2];
+	int ret;
+	char c = 0;
+
+	ev = tevent_context_init_byname(test, "poll_mt");
+	torture_assert(test, ev != NULL, "poll_mt not supported");
+
+	tevent_set_trace_callback(ev, test_event_threaded_trace, NULL);
+
+	te = tevent_add_timer(ev, ev, timeval_current_ofs(5, 0),
+			      test_event_threaded_timer, NULL);
+	torture_assert(test, te != NULL, "Could not add timer");
+
+	ret = pthread_create(&poll_thread, NULL, test_event_poll_thread, ev);
+	torture_assert(test, ret == 0, "Could not create poll thread");
+
+	ret = pipe(fds);
+	torture_assert(test, ret == 0, "Could not create pipe");
+
+	poll(NULL, 0, 100);
+
+	test_event_threaded_lock();
+
+	fde = tevent_add_fd(ev, ev, fds[0], TEVENT_FD_READ,
+			    test_event_threaded_read_handler, &fds[0]);
+	torture_assert(test, fde != NULL, "Could not add fd event");
+
+	test_event_threaded_unlock();
+
+	poll(NULL, 0, 100);
+
+	do_write(fds[1], &c, 1);
+
+	poll(NULL, 0, 100);
+
+	test_event_threaded_lock();
+	do_shutdown = true;
+	test_event_threaded_unlock();
+
+	do_write(fds[1], &c, 1);
+
+	ret = pthread_join(poll_thread, NULL);
+	torture_assert(test, ret == 0, "pthread_join failed");
+
+	return true;
+}
+
+#define NUM_TEVENT_THREADS 100
+
+/* Ugly, but needed for torture_comment... */
+static struct torture_context *thread_test_ctx;
+static pthread_t thread_map[NUM_TEVENT_THREADS];
+static unsigned thread_counter;
+
+/* Called in master thread context */
+static void callback_nowait(struct tevent_context *ev,
+				struct tevent_immediate *im,
+				void *private_ptr)
+{
+	pthread_t *thread_id_ptr =
+		talloc_get_type_abort(private_ptr, pthread_t);
+	unsigned i;
+
+	for (i = 0; i < NUM_TEVENT_THREADS; i++) {
+		if (pthread_equal(*thread_id_ptr,
+				thread_map[i])) {
+			break;
+		}
+	}
+	torture_comment(thread_test_ctx,
+			"Callback %u from thread %u\n",
+			thread_counter,
+			i);
+	thread_counter++;
+}
+
+/* Blast the master tevent_context with a callback, no waiting. */
+static void *thread_fn_nowait(void *private_ptr)
+{
+	struct tevent_thread_proxy *master_tp =
+		talloc_get_type_abort(private_ptr, struct tevent_thread_proxy);
+	struct tevent_immediate *im;
+	pthread_t *thread_id_ptr;
+
+	im = tevent_create_immediate(NULL);
+	if (im == NULL) {
+		return NULL;
+	}
+	thread_id_ptr = talloc(NULL, pthread_t);
+	if (thread_id_ptr == NULL) {
+		return NULL;
+	}
+	*thread_id_ptr = pthread_self();
+
+	tevent_thread_proxy_schedule(master_tp,
+				&im,
+				callback_nowait,
+				&thread_id_ptr);
+	return NULL;
+}
+
+static void timeout_fn(struct tevent_context *ev,
+			struct tevent_timer *te,
+			struct timeval tv, void *p)
+{
+	thread_counter = NUM_TEVENT_THREADS * 10;
+}
+
+static bool test_multi_tevent_threaded(struct torture_context *test,
+					const void *test_data)
+{
+	unsigned i;
+	struct tevent_context *master_ev;
+	struct tevent_thread_proxy *tp;
+
+	talloc_disable_null_tracking();
+
+	/* Ugly global stuff. */
+	thread_test_ctx = test;
+	thread_counter = 0;
+
+	master_ev = tevent_context_init(NULL);
+	if (master_ev == NULL) {
+		return false;
+	}
+	tevent_set_debug_stderr(master_ev);
+
+	tp = tevent_thread_proxy_create(master_ev);
+	if (tp == NULL) {
+		torture_fail(test,
+			talloc_asprintf(test,
+				"tevent_thread_proxy_create failed\n"));
+		talloc_free(master_ev);
+		return false;
+	}
+
+	for (i = 0; i < NUM_TEVENT_THREADS; i++) {
+		int ret = pthread_create(&thread_map[i],
+				NULL,
+				thread_fn_nowait,
+				tp);
+		if (ret != 0) {
+			torture_fail(test,
+				talloc_asprintf(test,
+					"Failed to create thread %i, %d\n",
+					i, ret));
+			return false;
+		}
+	}
+
+	/* Ensure we don't wait more than 10 seconds. */
+	tevent_add_timer(master_ev,
+			master_ev,
+			timeval_current_ofs(10,0),
+			timeout_fn,
+			NULL);
+
+	while (thread_counter < NUM_TEVENT_THREADS) {
+		int ret = tevent_loop_once(master_ev);
+		torture_assert(test, ret == 0, "tevent_loop_once failed");
+	}
+
+	torture_assert(test, thread_counter == NUM_TEVENT_THREADS,
+		"thread_counter fail\n");
+
+	talloc_free(master_ev);
+	return true;
+}
+
+struct reply_state {
+	struct tevent_thread_proxy *reply_tp;
+	pthread_t thread_id;
+	int *p_finished;
+};
+
+static void thread_timeout_fn(struct tevent_context *ev,
+			struct tevent_timer *te,
+			struct timeval tv, void *p)
+{
+	int *p_finished = (int *)p;
+
+	*p_finished = 2;
+}
+
+/* Called in child-thread context */
+static void thread_callback(struct tevent_context *ev,
+				struct tevent_immediate *im,
+				void *private_ptr)
+{
+	struct reply_state *rsp =
+		talloc_get_type_abort(private_ptr, struct reply_state);
+
+	talloc_steal(ev, rsp);
+	*rsp->p_finished = 1;
+}
+
+/* Called in master thread context */
+static void master_callback(struct tevent_context *ev,
+				struct tevent_immediate *im,
+				void *private_ptr)
+{
+	struct reply_state *rsp =
+		talloc_get_type_abort(private_ptr, struct reply_state);
+	unsigned i;
+
+	talloc_steal(ev, rsp);
+
+	for (i = 0; i < NUM_TEVENT_THREADS; i++) {
+		if (pthread_equal(rsp->thread_id,
+				thread_map[i])) {
+			break;
+		}
+	}
+	torture_comment(thread_test_ctx,
+			"Callback %u from thread %u\n",
+			thread_counter,
+			i);
+	/* Now reply to the thread ! */
+	tevent_thread_proxy_schedule(rsp->reply_tp,
+				&im,
+				thread_callback,
+				&rsp);
+
+	thread_counter++;
+}
+
+static void *thread_fn_1(void *private_ptr)
+{
+	struct tevent_thread_proxy *master_tp =
+		talloc_get_type_abort(private_ptr, struct tevent_thread_proxy);
+	struct tevent_thread_proxy *tp;
+	struct tevent_immediate *im;
+	struct tevent_context *ev;
+	struct reply_state *rsp;
+	int finished = 0;
+	int ret;
+
+	ev = tevent_context_init(NULL);
+	if (ev == NULL) {
+		return NULL;
+	}
+
+	tp = tevent_thread_proxy_create(ev);
+	if (tp == NULL) {
+		talloc_free(ev);
+		return NULL;
+	}
+
+	im = tevent_create_immediate(ev);
+	if (im == NULL) {
+		talloc_free(ev);
+		return NULL;
+	}
+
+	rsp = talloc(ev, struct reply_state);
+	if (rsp == NULL) {
+		talloc_free(ev);
+		return NULL;
+	}
+
+	rsp->thread_id = pthread_self();
+	rsp->reply_tp = tp;
+	rsp->p_finished = &finished;
+
+	/* Introduce a little randomness into the mix.. */
+	usleep(random() % 7000);
+
+	tevent_thread_proxy_schedule(master_tp,
+				&im,
+				master_callback,
+				&rsp);
+
+	/* Ensure we don't wait more than 10 seconds. */
+	tevent_add_timer(ev,
+			ev,
+			timeval_current_ofs(10,0),
+			thread_timeout_fn,
+			&finished);
+
+	while (finished == 0) {
+		ret = tevent_loop_once(ev);
+		assert(ret == 0);
+	}
+
+	if (finished > 1) {
+		/* Timeout ! */
+		abort();
+	}
+
+	/*
+	 * NB. We should talloc_free(ev) here, but if we do
+	 * we currently get hit by helgrind Fix #323432
+	 * "When calling pthread_cond_destroy or pthread_mutex_destroy
+	 * with initializers as argument Helgrind (incorrectly) reports errors."
+	 *
+	 * http://valgrind.10908.n7.nabble.com/Helgrind-3-9-0-false-positive-
+	 * with-pthread-mutex-destroy-td47757.html
+	 *
+	 * Helgrind doesn't understand that the request/reply
+	 * messages provide synchronization between the lock/unlock
+	 * in tevent_thread_proxy_schedule(), and the pthread_destroy()
+	 * when the struct tevent_thread_proxy object is talloc_free'd.
+	 *
+	 * As a work-around for now return ev for the parent thread to free.
+	 */
+	return ev;
+}
+
+static bool test_multi_tevent_threaded_1(struct torture_context *test,
+					const void *test_data)
+{
+	unsigned i;
+	struct tevent_context *master_ev;
+	struct tevent_thread_proxy *master_tp;
+	int ret;
+
+	talloc_disable_null_tracking();
+
+	/* Ugly global stuff. */
+	thread_test_ctx = test;
+	thread_counter = 0;
+
+	master_ev = tevent_context_init(NULL);
+	if (master_ev == NULL) {
+		return false;
+	}
+	tevent_set_debug_stderr(master_ev);
+
+	master_tp = tevent_thread_proxy_create(master_ev);
+	if (master_tp == NULL) {
+		torture_fail(test,
+			talloc_asprintf(test,
+				"tevent_thread_proxy_create failed\n"));
+		talloc_free(master_ev);
+		return false;
+	}
+
+	for (i = 0; i < NUM_TEVENT_THREADS; i++) {
+		ret = pthread_create(&thread_map[i],
+				NULL,
+				thread_fn_1,
+				master_tp);
+		if (ret != 0) {
+			torture_fail(test,
+				talloc_asprintf(test,
+					"Failed to create thread %i, %d\n",
+					i, ret));
+				return false;
+		}
+	}
+
+	while (thread_counter < NUM_TEVENT_THREADS) {
+		ret = tevent_loop_once(master_ev);
+		torture_assert(test, ret == 0, "tevent_loop_once failed");
+	}
+
+	/* Wait for all the threads to finish - join 'em. */
+	for (i = 0; i < NUM_TEVENT_THREADS; i++) {
+		void *retval;
+		ret = pthread_join(thread_map[i], &retval);
+		torture_assert(test, ret == 0, "pthread_join failed");
+		/* Free the child thread event context. */
+		talloc_free(retval);
+	}
+
+	talloc_free(master_ev);
+	return true;
+}
+
+struct threaded_test_2 {
+	struct tevent_threaded_context *tctx;
+	struct tevent_immediate *im;
+	pthread_t thread_id;
+};
+
+static void master_callback_2(struct tevent_context *ev,
+			      struct tevent_immediate *im,
+			      void *private_data);
+
+static void *thread_fn_2(void *private_data)
+{
+	struct threaded_test_2 *state = private_data;
+
+	state->thread_id = pthread_self();
+
+	usleep(random() % 7000);
+
+	tevent_threaded_schedule_immediate(
+		state->tctx, state->im, master_callback_2, state);
+
+	return NULL;
+}
+
+static void master_callback_2(struct tevent_context *ev,
+			      struct tevent_immediate *im,
+			      void *private_data)
+{
+	struct threaded_test_2 *state = private_data;
+	int i;
+
+	for (i = 0; i < NUM_TEVENT_THREADS; i++) {
+		if (pthread_equal(state->thread_id, thread_map[i])) {
+			break;
+		}
+	}
+	torture_comment(thread_test_ctx,
+			"Callback_2 %u from thread %u\n",
+			thread_counter,
+			i);
+	thread_counter++;
+}
+
+static bool test_multi_tevent_threaded_2(struct torture_context *test,
+					 const void *test_data)
+{
+	unsigned i;
+
+	struct tevent_context *ev;
+	struct tevent_threaded_context *tctx;
+	int ret;
+
+	thread_test_ctx = test;
+	thread_counter = 0;
+
+	ev = tevent_context_init(test);
+	torture_assert(test, ev != NULL, "tevent_context_init failed");
+
+	/*
+	 * tevent_re_initialise used to have a bug where it did not
+	 * re-initialise the thread support after taking it
+	 * down. Exercise that code path.
+	 */
+	ret = tevent_re_initialise(ev);
+	torture_assert(test, ret == 0, "tevent_re_initialise failed");
+
+	tctx = tevent_threaded_context_create(ev, ev);
+	torture_assert(test, tctx != NULL,
+		       "tevent_threaded_context_create failed");
+
+	for (i=0; i<NUM_TEVENT_THREADS; i++) {
+		struct threaded_test_2 *state;
+
+		state = talloc(ev, struct threaded_test_2);
+		torture_assert(test, state != NULL, "talloc failed");
+
+		state->tctx = tctx;
+		state->im = tevent_create_immediate(state);
+		torture_assert(test, state->im != NULL,
+			       "tevent_create_immediate failed");
+
+		ret = pthread_create(&thread_map[i], NULL, thread_fn_2, state);
+		torture_assert(test, ret == 0, "pthread_create failed");
+	}
+
+	while (thread_counter < NUM_TEVENT_THREADS) {
+		ret = tevent_loop_once(ev);
+		torture_assert(test, ret == 0, "tevent_loop_once failed");
+	}
+
+	/* Wait for all the threads to finish - join 'em. */
+	for (i = 0; i < NUM_TEVENT_THREADS; i++) {
+		void *retval;
+		ret = pthread_join(thread_map[i], &retval);
+		torture_assert(test, ret == 0, "pthread_join failed");
+		/* Free the child thread event context. */
+	}
+
+	talloc_free(tctx);
+	talloc_free(ev);
+	return true;
+}
+
+struct test_cached_pid_thread_state {
+	pid_t thread_cached_pid;
+	pid_t thread_pid;
+};
+
+static void *test_cached_pid_thread(void *private_data)
+{
+	struct test_cached_pid_thread_state *state =
+		(struct test_cached_pid_thread_state *)private_data;
+
+	state->thread_cached_pid = tevent_cached_getpid();
+	state->thread_pid = getpid();
+
+	return NULL;
+}
+#endif
+
+static bool test_cached_pid(struct torture_context *test,
+			    const void *test_data)
+{
+	pid_t parent_pid = getpid();
+	pid_t child_pid;
+	pid_t finished_pid;
+	int child_status;
+
+	torture_assert(test, tevent_cached_getpid() == parent_pid, "tevent_cached_getpid()");
+
+#ifdef HAVE_PTHREAD
+	{
+		struct test_cached_pid_thread_state state = { .thread_cached_pid = -1, };
+		pthread_t thread;
+		void *retval = NULL;
+		int ret;
+
+		ret = pthread_create(&thread, NULL, test_cached_pid_thread, &state);
+		torture_assert(test, ret == 0, "pthread_create failed");
+
+		ret = pthread_join(thread, &retval);
+		torture_assert(test, ret == 0, "pthread_join failed");
+
+		torture_assert(test, state.thread_pid == parent_pid, "getpid() in thread");
+		torture_assert(test, state.thread_cached_pid == parent_pid, "tevent_cached_getpid() in thread");
+	}
+#endif /* HAVE_PTHREAD */
+
+	child_pid = fork();
+	if (child_pid == 0) {
+		/* child */
+		pid_t pid = getpid();
+		pid_t cached_pid = tevent_cached_getpid();
+
+		if (parent_pid == pid) {
+			exit(1);
+		}
+		if (pid != cached_pid) {
+			exit(2);
+		}
+		exit(0);
+	}
+	torture_assert(test, child_pid > 0, "fork failed");
+
+	finished_pid = waitpid(child_pid, &child_status, 0);
+	torture_assert(test, finished_pid == child_pid, "wrong child");
+	torture_assert(test, child_status == 0, "child_status");
+
+	return true;
+}
+
+struct torture_suite *torture_local_event(TALLOC_CTX *mem_ctx)
+{
+	struct torture_suite *suite = torture_suite_create(mem_ctx, "event");
+	const char **list = tevent_backend_list(suite);
+	int i;
+
+	for (i=0;list && list[i];i++) {
+		struct torture_suite *backend_suite;
+
+		backend_suite = torture_suite_create(mem_ctx, list[i]);
+
+		torture_suite_add_simple_tcase_const(backend_suite,
+					       "context",
+					       test_event_context,
+					       (const void *)list[i]);
+		torture_suite_add_simple_tcase_const(backend_suite,
+					       "fd1",
+					       test_event_fd1,
+					       (const void *)list[i]);
+		torture_suite_add_simple_tcase_const(backend_suite,
+					       "fd2",
+					       test_event_fd2,
+					       (const void *)list[i]);
+		torture_suite_add_simple_tcase_const(backend_suite,
+					       "wrapper",
+					       test_wrapper,
+					       (const void *)list[i]);
+		torture_suite_add_simple_tcase_const(backend_suite,
+					       "free_wrapper",
+					       test_free_wrapper,
+					       (const void *)list[i]);
+
+		torture_suite_add_suite(suite, backend_suite);
+	}
+
+#ifdef HAVE_PTHREAD
+	torture_suite_add_simple_tcase_const(suite, "threaded_poll_mt",
+					     test_event_context_threaded,
+					     NULL);
+
+	torture_suite_add_simple_tcase_const(suite, "multi_tevent_threaded",
+					     test_multi_tevent_threaded,
+					     NULL);
+
+	torture_suite_add_simple_tcase_const(suite, "multi_tevent_threaded_1",
+					     test_multi_tevent_threaded_1,
+					     NULL);
+
+	torture_suite_add_simple_tcase_const(suite, "multi_tevent_threaded_2",
+					     test_multi_tevent_threaded_2,
+					     NULL);
+
+#endif
+
+	torture_suite_add_simple_tcase_const(suite, "tevent_cached_getpid",
+					     test_cached_pid,
+					     NULL);
+
+	return suite;
+}
diff --git a/lib/tevent/tevent.c b/lib/tevent/tevent.c
new file mode 100644
index 0000000..262fdaa
--- /dev/null
+++ b/lib/tevent/tevent.c
@@ -0,0 +1,1090 @@
+/* 
+   Unix SMB/CIFS implementation.
+   main select loop and event handling
+   Copyright (C) Andrew Tridgell 2003
+   Copyright (C) Stefan Metzmacher 2009
+
+     ** NOTE! The following LGPL license applies to the tevent
+     ** library. This does NOT imply that all of Samba is released
+     ** under the LGPL
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 3 of the License, or (at your option) any later version.
+
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with this library; if not, see <http://www.gnu.org/licenses/>.
+*/
+
+/*
+  PLEASE READ THIS BEFORE MODIFYING!
+
+  This module is a general abstraction for the main select loop and
+  event handling. Do not ever put any localised hacks in here, instead
+  register one of the possible event types and implement that event
+  somewhere else.
+
+  There are 2 types of event handling that are handled in this module:
+
+  1) a file descriptor becoming readable or writeable. This is mostly
+     used for network sockets, but can be used for any type of file
+     descriptor. You may only register one handler for each file
+     descriptor/io combination or you will get unpredictable results
+     (this means that you can have a handler for read events, and a
+     separate handler for write events, but not two handlers that are
+     both handling read events)
+
+  2) a timed event. You can register an event that happens at a
+     specific time.  You can register as many of these as you
+     like. They are single shot - add a new timed event in the event
+     handler to get another event.
+
+  To setup a set of events you first need to create a event_context
+  structure using the function tevent_context_init(); This returns a
+  'struct tevent_context' that you use in all subsequent calls.
+
+  After that you can add/remove events that you are interested in
+  using tevent_add_*() and talloc_free()
+
+  Finally, you call tevent_loop_wait_once() to block waiting for one of the
+  events to occor or tevent_loop_wait() which will loop
+  forever.
+
+*/
+#include "replace.h"
+#include "system/filesys.h"
+#ifdef HAVE_PTHREAD
+#include "system/threads.h"
+#endif
+#define TEVENT_DEPRECATED 1
+#include "tevent.h"
+#include "tevent_internal.h"
+#include "tevent_util.h"
+#ifdef HAVE_EVENTFD
+#include <sys/eventfd.h>
+#endif
+
+struct tevent_ops_list {
+	struct tevent_ops_list *next, *prev;
+	const char *name;
+	const struct tevent_ops *ops;
+};
+
+/* list of registered event backends */
+static struct tevent_ops_list *tevent_backends = NULL;
+static char *tevent_default_backend = NULL;
+
+/*
+  register an events backend
+*/
+bool tevent_register_backend(const char *name, const struct tevent_ops *ops)
+{
+	struct tevent_ops_list *e;
+
+	for (e = tevent_backends; e != NULL; e = e->next) {
+		if (0 == strcmp(e->name, name)) {
+			/* already registered, skip it */
+			return true;
+		}
+	}
+
+	e = talloc(NULL, struct tevent_ops_list);
+	if (e == NULL) return false;
+
+	e->name = name;
+	e->ops = ops;
+	DLIST_ADD(tevent_backends, e);
+
+	return true;
+}
+
+/*
+  set the default event backend
+ */
+void tevent_set_default_backend(const char *backend)
+{
+	talloc_free(tevent_default_backend);
+	tevent_default_backend = talloc_strdup(NULL, backend);
+}
+
+/*
+  initialise backends if not already done
+*/
+static void tevent_backend_init(void)
+{
+	static bool done;
+
+	if (done) {
+		return;
+	}
+
+	done = true;
+
+	tevent_poll_init();
+	tevent_poll_mt_init();
+#if defined(HAVE_EPOLL)
+	tevent_epoll_init();
+#elif defined(HAVE_SOLARIS_PORTS)
+	tevent_port_init();
+#endif
+
+	tevent_standard_init();
+}
+
+_PRIVATE_ const struct tevent_ops *tevent_find_ops_byname(const char *name)
+{
+	struct tevent_ops_list *e;
+
+	tevent_backend_init();
+
+	if (name == NULL) {
+		name = tevent_default_backend;
+	}
+	if (name == NULL) {
+		name = "standard";
+	}
+
+	for (e = tevent_backends; e != NULL; e = e->next) {
+		if (0 == strcmp(e->name, name)) {
+			return e->ops;
+		}
+	}
+
+	return NULL;
+}
+
+/*
+  list available backends
+*/
+const char **tevent_backend_list(TALLOC_CTX *mem_ctx)
+{
+	const char **list = NULL;
+	struct tevent_ops_list *e;
+	size_t idx = 0;
+
+	tevent_backend_init();
+
+	for (e=tevent_backends;e;e=e->next) {
+		idx += 1;
+	}
+
+	list = talloc_zero_array(mem_ctx, const char *, idx+1);
+	if (list == NULL) {
+		return NULL;
+	}
+
+	idx = 0;
+	for (e=tevent_backends;e;e=e->next) {
+		list[idx] = talloc_strdup(list, e->name);
+		if (list[idx] == NULL) {
+			TALLOC_FREE(list);
+			return NULL;
+		}
+		idx += 1;
+	}
+
+	return list;
+}
+
+static void tevent_common_wakeup_fini(struct tevent_context *ev);
+
+#ifdef HAVE_PTHREAD
+
+static pthread_mutex_t tevent_contexts_mutex = PTHREAD_MUTEX_INITIALIZER;
+static struct tevent_context *tevent_contexts = NULL;
+static pthread_once_t tevent_atfork_initialized = PTHREAD_ONCE_INIT;
+static pid_t tevent_cached_global_pid = 0;
+
+static void tevent_atfork_prepare(void)
+{
+	struct tevent_context *ev;
+	int ret;
+
+	ret = pthread_mutex_lock(&tevent_contexts_mutex);
+	if (ret != 0) {
+		abort();
+	}
+
+	for (ev = tevent_contexts; ev != NULL; ev = ev->next) {
+		struct tevent_threaded_context *tctx;
+
+		for (tctx = ev->threaded_contexts; tctx != NULL;
+		     tctx = tctx->next) {
+			ret = pthread_mutex_lock(&tctx->event_ctx_mutex);
+			if (ret != 0) {
+				tevent_abort(ev, "pthread_mutex_lock failed");
+			}
+		}
+
+		ret = pthread_mutex_lock(&ev->scheduled_mutex);
+		if (ret != 0) {
+			tevent_abort(ev, "pthread_mutex_lock failed");
+		}
+	}
+}
+
+static void tevent_atfork_parent(void)
+{
+	struct tevent_context *ev;
+	int ret;
+
+	for (ev = DLIST_TAIL(tevent_contexts); ev != NULL;
+	     ev = DLIST_PREV(ev)) {
+		struct tevent_threaded_context *tctx;
+
+		ret = pthread_mutex_unlock(&ev->scheduled_mutex);
+		if (ret != 0) {
+			tevent_abort(ev, "pthread_mutex_unlock failed");
+		}
+
+		for (tctx = DLIST_TAIL(ev->threaded_contexts); tctx != NULL;
+		     tctx = DLIST_PREV(tctx)) {
+			ret = pthread_mutex_unlock(&tctx->event_ctx_mutex);
+			if (ret != 0) {
+				tevent_abort(
+					ev, "pthread_mutex_unlock failed");
+			}
+		}
+	}
+
+	ret = pthread_mutex_unlock(&tevent_contexts_mutex);
+	if (ret != 0) {
+		abort();
+	}
+}
+
+static void tevent_atfork_child(void)
+{
+	struct tevent_context *ev;
+	int ret;
+
+	tevent_cached_global_pid = getpid();
+
+	for (ev = DLIST_TAIL(tevent_contexts); ev != NULL;
+	     ev = DLIST_PREV(ev)) {
+		struct tevent_threaded_context *tctx;
+
+		for (tctx = DLIST_TAIL(ev->threaded_contexts); tctx != NULL;
+		     tctx = DLIST_PREV(tctx)) {
+			tctx->event_ctx = NULL;
+
+			ret = pthread_mutex_unlock(&tctx->event_ctx_mutex);
+			if (ret != 0) {
+				tevent_abort(
+					ev, "pthread_mutex_unlock failed");
+			}
+		}
+
+		ev->threaded_contexts = NULL;
+
+		ret = pthread_mutex_unlock(&ev->scheduled_mutex);
+		if (ret != 0) {
+			tevent_abort(ev, "pthread_mutex_unlock failed");
+		}
+	}
+
+	ret = pthread_mutex_unlock(&tevent_contexts_mutex);
+	if (ret != 0) {
+		abort();
+	}
+}
+
+static void tevent_prep_atfork(void)
+{
+	int ret;
+
+	ret = pthread_atfork(tevent_atfork_prepare,
+			     tevent_atfork_parent,
+			     tevent_atfork_child);
+	if (ret != 0) {
+		abort();
+	}
+
+	tevent_cached_global_pid = getpid();
+}
+
+#endif
+
+static int tevent_init_globals(void)
+{
+#ifdef HAVE_PTHREAD
+	int ret;
+
+	ret = pthread_once(&tevent_atfork_initialized, tevent_prep_atfork);
+	if (ret != 0) {
+		return ret;
+	}
+#endif
+
+	return 0;
+}
+
+_PUBLIC_ pid_t tevent_cached_getpid(void)
+{
+#ifdef HAVE_PTHREAD
+	tevent_init_globals();
+#ifdef TEVENT_VERIFY_CACHED_GETPID
+	if (tevent_cached_global_pid != getpid()) {
+		tevent_abort(NULL, "tevent_cached_global_pid invalid");
+	}
+#endif
+	if (tevent_cached_global_pid != 0) {
+		return tevent_cached_global_pid;
+	}
+#endif
+	return getpid();
+}
+
+int tevent_common_context_destructor(struct tevent_context *ev)
+{
+	struct tevent_fd *fd, *fn;
+	struct tevent_timer *te, *tn;
+	struct tevent_immediate *ie, *in;
+	struct tevent_signal *se, *sn;
+	struct tevent_wrapper_glue *gl, *gn;
+#ifdef HAVE_PTHREAD
+	int ret;
+#endif
+
+	if (ev->wrapper.glue != NULL) {
+		tevent_abort(ev,
+			"tevent_common_context_destructor() active on wrapper");
+	}
+
+#ifdef HAVE_PTHREAD
+	ret = pthread_mutex_lock(&tevent_contexts_mutex);
+	if (ret != 0) {
+		abort();
+	}
+
+	DLIST_REMOVE(tevent_contexts, ev);
+
+	ret = pthread_mutex_unlock(&tevent_contexts_mutex);
+	if (ret != 0) {
+		abort();
+	}
+
+	while (ev->threaded_contexts != NULL) {
+		struct tevent_threaded_context *tctx = ev->threaded_contexts;
+
+		ret = pthread_mutex_lock(&tctx->event_ctx_mutex);
+		if (ret != 0) {
+			abort();
+		}
+
+		/*
+		 * Indicate to the thread that the tevent_context is
+		 * gone. The counterpart of this is in
+		 * _tevent_threaded_schedule_immediate, there we read
+		 * this under the threaded_context's mutex.
+		 */
+
+		tctx->event_ctx = NULL;
+
+		ret = pthread_mutex_unlock(&tctx->event_ctx_mutex);
+		if (ret != 0) {
+			abort();
+		}
+
+		DLIST_REMOVE(ev->threaded_contexts, tctx);
+	}
+
+	ret = pthread_mutex_destroy(&ev->scheduled_mutex);
+	if (ret != 0) {
+		abort();
+	}
+#endif
+
+	for (gl = ev->wrapper.list; gl; gl = gn) {
+		gn = gl->next;
+
+		gl->main_ev = NULL;
+		DLIST_REMOVE(ev->wrapper.list, gl);
+	}
+
+	tevent_common_wakeup_fini(ev);
+
+	for (fd = ev->fd_events; fd; fd = fn) {
+		fn = fd->next;
+		tevent_trace_fd_callback(fd->event_ctx, fd, TEVENT_EVENT_TRACE_DETACH);
+		fd->wrapper = NULL;
+		fd->event_ctx = NULL;
+		DLIST_REMOVE(ev->fd_events, fd);
+	}
+
+	ev->last_zero_timer = NULL;
+	for (te = ev->timer_events; te; te = tn) {
+		tn = te->next;
+		tevent_trace_timer_callback(te->event_ctx, te, TEVENT_EVENT_TRACE_DETACH);
+		te->wrapper = NULL;
+		te->event_ctx = NULL;
+		DLIST_REMOVE(ev->timer_events, te);
+	}
+
+	for (ie = ev->immediate_events; ie; ie = in) {
+		in = ie->next;
+		tevent_trace_immediate_callback(ie->event_ctx, ie, TEVENT_EVENT_TRACE_DETACH);
+		ie->wrapper = NULL;
+		ie->event_ctx = NULL;
+		ie->cancel_fn = NULL;
+		DLIST_REMOVE(ev->immediate_events, ie);
+	}
+
+	for (se = ev->signal_events; se; se = sn) {
+		sn = se->next;
+		tevent_trace_signal_callback(se->event_ctx, se, TEVENT_EVENT_TRACE_DETACH);
+		se->wrapper = NULL;
+		se->event_ctx = NULL;
+		DLIST_REMOVE(ev->signal_events, se);
+		/*
+		 * This is important, Otherwise signals
+		 * are handled twice in child. eg, SIGHUP.
+		 * one added in parent, and another one in
+		 * the child. -- BoYang
+		 */
+		tevent_cleanup_pending_signal_handlers(se);
+	}
+
+	/* removing nesting hook or we get an abort when nesting is
+	 * not allowed. -- SSS
+	 * Note that we need to leave the allowed flag at its current
+	 * value, otherwise the use in tevent_re_initialise() will
+	 * leave the event context with allowed forced to false, which
+	 * will break users that expect nesting to be allowed
+	 */
+	ev->nesting.level = 0;
+	ev->nesting.hook_fn = NULL;
+	ev->nesting.hook_private = NULL;
+
+	return 0;
+}
+
+static int tevent_common_context_constructor(struct tevent_context *ev)
+{
+	int ret;
+
+	ret = tevent_init_globals();
+	if (ret != 0) {
+		return ret;
+	}
+
+#ifdef HAVE_PTHREAD
+
+	ret = pthread_mutex_init(&ev->scheduled_mutex, NULL);
+	if (ret != 0) {
+		return ret;
+	}
+
+	ret = pthread_mutex_lock(&tevent_contexts_mutex);
+	if (ret != 0) {
+		pthread_mutex_destroy(&ev->scheduled_mutex);
+		return ret;
+	}
+
+	DLIST_ADD(tevent_contexts, ev);
+
+	ret = pthread_mutex_unlock(&tevent_contexts_mutex);
+	if (ret != 0) {
+		abort();
+	}
+#endif
+
+	talloc_set_destructor(ev, tevent_common_context_destructor);
+
+	return 0;
+}
+
+void tevent_common_check_double_free(TALLOC_CTX *ptr, const char *reason)
+{
+	void *parent_ptr = talloc_parent(ptr);
+	size_t parent_blocks = talloc_total_blocks(parent_ptr);
+
+	if (parent_ptr != NULL && parent_blocks == 0) {
+		/*
+		 * This is an implicit talloc free, as we still have a parent
+		 * but it's already being destroyed. Note that
+		 * talloc_total_blocks(ptr) also just returns 0 if a
+		 * talloc_free(ptr) is still in progress of freeing all
+		 * children.
+		 */
+		return;
+	}
+
+	tevent_abort(NULL, reason);
+}
+
+/*
+  create a event_context structure for a specific implemementation.
+  This must be the first events call, and all subsequent calls pass
+  this event_context as the first element. Event handlers also
+  receive this as their first argument.
+
+  This function is for allowing third-party-applications to hook in gluecode
+  to their own event loop code, so that they can make async usage of our client libs
+
+  NOTE: use tevent_context_init() inside of samba!
+*/
+struct tevent_context *tevent_context_init_ops(TALLOC_CTX *mem_ctx,
+					       const struct tevent_ops *ops,
+					       void *additional_data)
+{
+	struct tevent_context *ev;
+	int ret;
+
+	ev = talloc_zero(mem_ctx, struct tevent_context);
+	if (!ev) return NULL;
+
+	ret = tevent_common_context_constructor(ev);
+	if (ret != 0) {
+		talloc_free(ev);
+		return NULL;
+	}
+
+	ev->ops = ops;
+	ev->additional_data = additional_data;
+
+	ret = ev->ops->context_init(ev);
+	if (ret != 0) {
+		talloc_free(ev);
+		return NULL;
+	}
+
+	return ev;
+}
+
+/*
+  create a event_context structure. This must be the first events
+  call, and all subsequent calls pass this event_context as the first
+  element. Event handlers also receive this as their first argument.
+*/
+struct tevent_context *tevent_context_init_byname(TALLOC_CTX *mem_ctx,
+						  const char *name)
+{
+	const struct tevent_ops *ops;
+
+	ops = tevent_find_ops_byname(name);
+	if (ops == NULL) {
+		return NULL;
+	}
+
+	return tevent_context_init_ops(mem_ctx, ops, NULL);
+}
+
+
+/*
+  create a event_context structure. This must be the first events
+  call, and all subsequent calls pass this event_context as the first
+  element. Event handlers also receive this as their first argument.
+*/
+struct tevent_context *tevent_context_init(TALLOC_CTX *mem_ctx)
+{
+	return tevent_context_init_byname(mem_ctx, NULL);
+}
+
+/*
+  add a fd based event
+  return NULL on failure (memory allocation error)
+*/
+struct tevent_fd *_tevent_add_fd(struct tevent_context *ev,
+				 TALLOC_CTX *mem_ctx,
+				 int fd,
+				 uint16_t flags,
+				 tevent_fd_handler_t handler,
+				 void *private_data,
+				 const char *handler_name,
+				 const char *location)
+{
+	return ev->ops->add_fd(ev, mem_ctx, fd, flags, handler, private_data,
+			       handler_name, location);
+}
+
+/*
+  set a close function on the fd event
+*/
+void tevent_fd_set_close_fn(struct tevent_fd *fde,
+			    tevent_fd_close_fn_t close_fn)
+{
+	if (!fde) return;
+	if (!fde->event_ctx) return;
+	fde->event_ctx->ops->set_fd_close_fn(fde, close_fn);
+}
+
+static void tevent_fd_auto_close_fn(struct tevent_context *ev,
+				    struct tevent_fd *fde,
+				    int fd,
+				    void *private_data)
+{
+	close(fd);
+}
+
+void tevent_fd_set_auto_close(struct tevent_fd *fde)
+{
+	tevent_fd_set_close_fn(fde, tevent_fd_auto_close_fn);
+}
+
+/*
+  return the fd event flags
+*/
+uint16_t tevent_fd_get_flags(struct tevent_fd *fde)
+{
+	if (!fde) return 0;
+	if (!fde->event_ctx) return 0;
+	return fde->event_ctx->ops->get_fd_flags(fde);
+}
+
+/*
+  set the fd event flags
+*/
+void tevent_fd_set_flags(struct tevent_fd *fde, uint16_t flags)
+{
+	if (!fde) return;
+	if (!fde->event_ctx) return;
+	fde->event_ctx->ops->set_fd_flags(fde, flags);
+}
+
+bool tevent_signal_support(struct tevent_context *ev)
+{
+	if (ev->ops->add_signal) {
+		return true;
+	}
+	return false;
+}
+
+static void (*tevent_abort_fn)(const char *reason);
+
+void tevent_set_abort_fn(void (*abort_fn)(const char *reason))
+{
+	tevent_abort_fn = abort_fn;
+}
+
+void tevent_abort(struct tevent_context *ev, const char *reason)
+{
+	if (ev != NULL) {
+		tevent_debug(ev, TEVENT_DEBUG_FATAL,
+			     "abort: %s\n", reason);
+	}
+
+	if (!tevent_abort_fn) {
+		abort();
+	}
+
+	tevent_abort_fn(reason);
+}
+
+/*
+  add a timer event
+  return NULL on failure
+*/
+struct tevent_timer *_tevent_add_timer(struct tevent_context *ev,
+				       TALLOC_CTX *mem_ctx,
+				       struct timeval next_event,
+				       tevent_timer_handler_t handler,
+				       void *private_data,
+				       const char *handler_name,
+				       const char *location)
+{
+	return ev->ops->add_timer(ev, mem_ctx, next_event, handler, private_data,
+				  handler_name, location);
+}
+
+/*
+  allocate an immediate event
+  return NULL on failure (memory allocation error)
+*/
+struct tevent_immediate *_tevent_create_immediate(TALLOC_CTX *mem_ctx,
+						  const char *location)
+{
+	struct tevent_immediate *im;
+
+	im = talloc(mem_ctx, struct tevent_immediate);
+	if (im == NULL) return NULL;
+
+	*im = (struct tevent_immediate) { .create_location = location };
+
+	return im;
+}
+
+/*
+  schedule an immediate event
+*/
+void _tevent_schedule_immediate(struct tevent_immediate *im,
+				struct tevent_context *ev,
+				tevent_immediate_handler_t handler,
+				void *private_data,
+				const char *handler_name,
+				const char *location)
+{
+	ev->ops->schedule_immediate(im, ev, handler, private_data,
+				    handler_name, location);
+}
+
+/*
+  add a signal event
+
+  sa_flags are flags to sigaction(2)
+
+  return NULL on failure
+*/
+struct tevent_signal *_tevent_add_signal(struct tevent_context *ev,
+					 TALLOC_CTX *mem_ctx,
+					 int signum,
+					 int sa_flags,
+					 tevent_signal_handler_t handler,
+					 void *private_data,
+					 const char *handler_name,
+					 const char *location)
+{
+	return ev->ops->add_signal(ev, mem_ctx, signum, sa_flags, handler, private_data,
+				   handler_name, location);
+}
+
+void tevent_loop_allow_nesting(struct tevent_context *ev)
+{
+	if (ev->wrapper.glue != NULL) {
+		tevent_abort(ev, "tevent_loop_allow_nesting() on wrapper");
+		return;
+	}
+
+	if (ev->wrapper.list != NULL) {
+		tevent_abort(ev, "tevent_loop_allow_nesting() with wrapper");
+		return;
+	}
+
+	ev->nesting.allowed = true;
+}
+
+void tevent_loop_set_nesting_hook(struct tevent_context *ev,
+				  tevent_nesting_hook hook,
+				  void *private_data)
+{
+	if (ev->nesting.hook_fn && 
+	    (ev->nesting.hook_fn != hook ||
+	     ev->nesting.hook_private != private_data)) {
+		/* the way the nesting hook code is currently written
+		   we cannot support two different nesting hooks at the
+		   same time. */
+		tevent_abort(ev, "tevent: Violation of nesting hook rules\n");
+	}
+	ev->nesting.hook_fn = hook;
+	ev->nesting.hook_private = private_data;
+}
+
+static void tevent_abort_nesting(struct tevent_context *ev, const char *location)
+{
+	const char *reason;
+
+	reason = talloc_asprintf(NULL, "tevent_loop_once() nesting at %s",
+				 location);
+	if (!reason) {
+		reason = "tevent_loop_once() nesting";
+	}
+
+	tevent_abort(ev, reason);
+}
+
+/*
+  do a single event loop using the events defined in ev 
+*/
+int _tevent_loop_once(struct tevent_context *ev, const char *location)
+{
+	int ret;
+	void *nesting_stack_ptr = NULL;
+
+	ev->nesting.level++;
+
+	if (ev->nesting.level > 1) {
+		if (!ev->nesting.allowed) {
+			tevent_abort_nesting(ev, location);
+			errno = ELOOP;
+			return -1;
+		}
+	}
+	if (ev->nesting.level > 0) {
+		if (ev->nesting.hook_fn) {
+			int ret2;
+			ret2 = ev->nesting.hook_fn(ev,
+						   ev->nesting.hook_private,
+						   ev->nesting.level,
+						   true,
+						   (void *)&nesting_stack_ptr,
+						   location);
+			if (ret2 != 0) {
+				ret = ret2;
+				goto done;
+			}
+		}
+	}
+
+	tevent_trace_point_callback(ev, TEVENT_TRACE_BEFORE_LOOP_ONCE);
+	ret = ev->ops->loop_once(ev, location);
+	tevent_trace_point_callback(ev, TEVENT_TRACE_AFTER_LOOP_ONCE);
+
+	if (ev->nesting.level > 0) {
+		if (ev->nesting.hook_fn) {
+			int ret2;
+			ret2 = ev->nesting.hook_fn(ev,
+						   ev->nesting.hook_private,
+						   ev->nesting.level,
+						   false,
+						   (void *)&nesting_stack_ptr,
+						   location);
+			if (ret2 != 0) {
+				ret = ret2;
+				goto done;
+			}
+		}
+	}
+
+done:
+	ev->nesting.level--;
+	return ret;
+}
+
+/*
+  this is a performance optimization for the samba4 nested event loop problems
+*/
+int _tevent_loop_until(struct tevent_context *ev,
+		       bool (*finished)(void *private_data),
+		       void *private_data,
+		       const char *location)
+{
+	int ret = 0;
+	void *nesting_stack_ptr = NULL;
+
+	ev->nesting.level++;
+
+	if (ev->nesting.level > 1) {
+		if (!ev->nesting.allowed) {
+			tevent_abort_nesting(ev, location);
+			errno = ELOOP;
+			return -1;
+		}
+	}
+	if (ev->nesting.level > 0) {
+		if (ev->nesting.hook_fn) {
+			int ret2;
+			ret2 = ev->nesting.hook_fn(ev,
+						   ev->nesting.hook_private,
+						   ev->nesting.level,
+						   true,
+						   (void *)&nesting_stack_ptr,
+						   location);
+			if (ret2 != 0) {
+				ret = ret2;
+				goto done;
+			}
+		}
+	}
+
+	while (!finished(private_data)) {
+		tevent_trace_point_callback(ev, TEVENT_TRACE_BEFORE_LOOP_ONCE);
+		ret = ev->ops->loop_once(ev, location);
+		tevent_trace_point_callback(ev, TEVENT_TRACE_AFTER_LOOP_ONCE);
+		if (ret != 0) {
+			break;
+		}
+	}
+
+	if (ev->nesting.level > 0) {
+		if (ev->nesting.hook_fn) {
+			int ret2;
+			ret2 = ev->nesting.hook_fn(ev,
+						   ev->nesting.hook_private,
+						   ev->nesting.level,
+						   false,
+						   (void *)&nesting_stack_ptr,
+						   location);
+			if (ret2 != 0) {
+				ret = ret2;
+				goto done;
+			}
+		}
+	}
+
+done:
+	ev->nesting.level--;
+	return ret;
+}
+
+bool tevent_common_have_events(struct tevent_context *ev)
+{
+	if (ev->fd_events != NULL) {
+		if (ev->fd_events != ev->wakeup_fde) {
+			return true;
+		}
+		if (ev->fd_events->next != NULL) {
+			return true;
+		}
+
+		/*
+		 * At this point we just have the wakeup pipe event as
+		 * the only fd_event. That one does not count as a
+		 * regular event, so look at the other event types.
+		 */
+	}
+
+	return ((ev->timer_events != NULL) ||
+		(ev->immediate_events != NULL) ||
+		(ev->signal_events != NULL));
+}
+
+/*
+  return on failure or (with 0) if all fd events are removed
+*/
+int tevent_common_loop_wait(struct tevent_context *ev,
+			    const char *location)
+{
+	/*
+	 * loop as long as we have events pending
+	 */
+	while (tevent_common_have_events(ev)) {
+		int ret;
+		ret = _tevent_loop_once(ev, location);
+		if (ret != 0) {
+			tevent_debug(ev, TEVENT_DEBUG_FATAL,
+				     "_tevent_loop_once() failed: %d - %s\n",
+				     ret, strerror(errno));
+			return ret;
+		}
+	}
+
+	tevent_debug(ev, TEVENT_DEBUG_WARNING,
+		     "tevent_common_loop_wait() out of events\n");
+	return 0;
+}
+
+/*
+  return on failure or (with 0) if all fd events are removed
+*/
+int _tevent_loop_wait(struct tevent_context *ev, const char *location)
+{
+	return ev->ops->loop_wait(ev, location);
+}
+
+
+/*
+  re-initialise a tevent context. This leaves you with the same
+  event context, but all events are wiped and the structure is
+  re-initialised. This is most useful after a fork()  
+
+  zero is returned on success, non-zero on failure
+*/
+int tevent_re_initialise(struct tevent_context *ev)
+{
+	tevent_common_context_destructor(ev);
+
+	tevent_common_context_constructor(ev);
+
+	return ev->ops->context_init(ev);
+}
+
+static void wakeup_pipe_handler(struct tevent_context *ev,
+				struct tevent_fd *fde,
+				uint16_t flags, void *_private)
+{
+	ssize_t ret;
+
+	do {
+		/*
+		 * This is the boilerplate for eventfd, but it works
+		 * for pipes too. And as we don't care about the data
+		 * we read, we're fine.
+		 */
+		uint64_t val;
+		ret = read(fde->fd, &val, sizeof(val));
+	} while (ret == -1 && errno == EINTR);
+}
+
+/*
+ * Initialize the wakeup pipe and pipe fde
+ */
+
+int tevent_common_wakeup_init(struct tevent_context *ev)
+{
+	int ret, read_fd;
+
+	if (ev->wakeup_fde != NULL) {
+		return 0;
+	}
+
+#ifdef HAVE_EVENTFD
+	ret = eventfd(0, EFD_NONBLOCK);
+	if (ret == -1) {
+		return errno;
+	}
+	read_fd = ev->wakeup_fd = ret;
+#else
+	{
+		int pipe_fds[2];
+		ret = pipe(pipe_fds);
+		if (ret == -1) {
+			return errno;
+		}
+		ev->wakeup_fd = pipe_fds[1];
+		ev->wakeup_read_fd = pipe_fds[0];
+
+		ev_set_blocking(ev->wakeup_fd, false);
+		ev_set_blocking(ev->wakeup_read_fd, false);
+
+		read_fd = ev->wakeup_read_fd;
+	}
+#endif
+
+	ev->wakeup_fde = tevent_add_fd(ev, ev, read_fd, TEVENT_FD_READ,
+				     wakeup_pipe_handler, NULL);
+	if (ev->wakeup_fde == NULL) {
+		close(ev->wakeup_fd);
+#ifndef HAVE_EVENTFD
+		close(ev->wakeup_read_fd);
+#endif
+		return ENOMEM;
+	}
+
+	return 0;
+}
+
+int tevent_common_wakeup_fd(int fd)
+{
+	ssize_t ret;
+
+	do {
+#ifdef HAVE_EVENTFD
+		uint64_t val = 1;
+		ret = write(fd, &val, sizeof(val));
+#else
+		char c = '\0';
+		ret = write(fd, &c, 1);
+#endif
+	} while ((ret == -1) && (errno == EINTR));
+
+	return 0;
+}
+
+int tevent_common_wakeup(struct tevent_context *ev)
+{
+	if (ev->wakeup_fde == NULL) {
+		return ENOTCONN;
+	}
+
+	return tevent_common_wakeup_fd(ev->wakeup_fd);
+}
+
+static void tevent_common_wakeup_fini(struct tevent_context *ev)
+{
+	if (ev->wakeup_fde == NULL) {
+		return;
+	}
+
+	TALLOC_FREE(ev->wakeup_fde);
+
+	close(ev->wakeup_fd);
+#ifndef HAVE_EVENTFD
+	close(ev->wakeup_read_fd);
+#endif
+}
diff --git a/lib/tevent/tevent.h b/lib/tevent/tevent.h
new file mode 100644
index 0000000..656df25
--- /dev/null
+++ b/lib/tevent/tevent.h
@@ -0,0 +1,2796 @@
+/*
+   Unix SMB/CIFS implementation.
+
+   generalised event loop handling
+
+   Copyright (C) Andrew Tridgell 2005
+   Copyright (C) Stefan Metzmacher 2005-2009
+   Copyright (C) Volker Lendecke 2008
+
+     ** NOTE! The following LGPL license applies to the tevent
+     ** library. This does NOT imply that all of Samba is released
+     ** under the LGPL
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 3 of the License, or (at your option) any later version.
+
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with this library; if not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __TEVENT_H__
+#define __TEVENT_H__
+
+#include <stdint.h>
+#include <talloc.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <stdbool.h>
+
+/* for old gcc releases that don't have the feature test macro __has_attribute */
+#ifndef __has_attribute
+#define __has_attribute(x) 0
+#endif
+
+
+struct tevent_context;
+struct tevent_ops;
+struct tevent_fd;
+struct tevent_timer;
+struct tevent_immediate;
+struct tevent_signal;
+struct tevent_thread_proxy;
+struct tevent_threaded_context;
+
+/**
+ * @defgroup tevent The tevent API
+ *
+ * The tevent low-level API
+ *
+ * This API provides the public interface to manage events in the tevent
+ * mainloop. Functions are provided for managing low-level events such
+ * as timer events, fd events and signal handling.
+ *
+ * @{
+ */
+
+/* event handler types */
+/**
+ * Called when a file descriptor monitored by tevent has
+ * data to be read or written on it.
+ */
+typedef void (*tevent_fd_handler_t)(struct tevent_context *ev,
+				    struct tevent_fd *fde,
+				    uint16_t flags,
+				    void *private_data);
+
+/**
+ * Called when tevent is ceasing the monitoring of a file descriptor.
+ */
+typedef void (*tevent_fd_close_fn_t)(struct tevent_context *ev,
+				     struct tevent_fd *fde,
+				     int fd,
+				     void *private_data);
+
+/**
+ * Called when a tevent timer has fired.
+ */
+typedef void (*tevent_timer_handler_t)(struct tevent_context *ev,
+				       struct tevent_timer *te,
+				       struct timeval current_time,
+				       void *private_data);
+
+/**
+ * Called when a tevent immediate event is invoked.
+ */
+typedef void (*tevent_immediate_handler_t)(struct tevent_context *ctx,
+					   struct tevent_immediate *im,
+					   void *private_data);
+
+/**
+ * Called after tevent detects the specified signal.
+ */
+typedef void (*tevent_signal_handler_t)(struct tevent_context *ev,
+					struct tevent_signal *se,
+					int signum,
+					int count,
+					void *siginfo,
+					void *private_data);
+
+/**
+ * @brief Create a event_context structure.
+ *
+ * This must be the first events call, and all subsequent calls pass this
+ * event_context as the first element. Event handlers also receive this as
+ * their first argument.
+ *
+ * @param[in]  mem_ctx  The memory context to use.
+ *
+ * @return              An allocated tevent context, NULL on error.
+ *
+ * @see tevent_context_init()
+ */
+struct tevent_context *tevent_context_init(TALLOC_CTX *mem_ctx);
+
+/**
+ * @brief Create a event_context structure and select a specific backend.
+ *
+ * This must be the first events call, and all subsequent calls pass this
+ * event_context as the first element. Event handlers also receive this as
+ * their first argument.
+ *
+ * @param[in]  mem_ctx  The memory context to use.
+ *
+ * @param[in]  name     The name of the backend to use.
+ *
+ * @return              An allocated tevent context, NULL on error.
+ */
+struct tevent_context *tevent_context_init_byname(TALLOC_CTX *mem_ctx, const char *name);
+
+/**
+ * @brief Create a custom event context
+ *
+ * @param[in]  mem_ctx  The memory context to use.
+ * @param[in]  ops      The function pointer table of the backend.
+ * @param[in]  additional_data  The additional/private data to this instance
+ *
+ * @return              An allocated tevent context, NULL on error.
+ *
+ */
+struct tevent_context *tevent_context_init_ops(TALLOC_CTX *mem_ctx,
+					       const struct tevent_ops *ops,
+					       void *additional_data);
+
+/**
+ * @brief List available backends.
+ *
+ * @param[in]  mem_ctx  The memory context to use.
+ *
+ * @return              A string vector with a terminating NULL element, NULL
+ *                      on error.
+ */
+const char **tevent_backend_list(TALLOC_CTX *mem_ctx);
+
+/**
+ * @brief Set the default tevent backend.
+ *
+ * @param[in]  backend  The name of the backend to set.
+ */
+void tevent_set_default_backend(const char *backend);
+
+#ifdef DOXYGEN
+/**
+ * @brief Add a file descriptor based event.
+ *
+ * @param[in]  ev       The event context to work on.
+ *
+ * @param[in]  mem_ctx  The talloc memory context to use.
+ *
+ * @param[in]  fd       The file descriptor to base the event on.
+ *
+ * @param[in]  flags    #TEVENT_FD_READ or #TEVENT_FD_WRITE
+ *
+ * @param[in]  handler  The callback handler for the event.
+ *
+ * @param[in]  private_data  The private data passed to the callback handler.
+ *
+ * @return              The file descriptor based event, NULL on error.
+ *
+ * @note To cancel the monitoring of a file descriptor, call talloc_free()
+ * on the object returned by this function.
+ *
+ * @note The caller should avoid closing the file descriptor before
+ * calling talloc_free()! Otherwise the behaviour is undefined which
+ * might result in crashes. See https://bugzilla.samba.org/show_bug.cgi?id=11141
+ * for an example.
+ */
+struct tevent_fd *tevent_add_fd(struct tevent_context *ev,
+				TALLOC_CTX *mem_ctx,
+				int fd,
+				uint16_t flags,
+				tevent_fd_handler_t handler,
+				void *private_data);
+#else
+struct tevent_fd *_tevent_add_fd(struct tevent_context *ev,
+				 TALLOC_CTX *mem_ctx,
+				 int fd,
+				 uint16_t flags,
+				 tevent_fd_handler_t handler,
+				 void *private_data,
+				 const char *handler_name,
+				 const char *location);
+#define tevent_add_fd(ev, mem_ctx, fd, flags, handler, private_data) \
+	_tevent_add_fd(ev, mem_ctx, fd, flags, handler, private_data, \
+		       #handler, __location__)
+#endif
+
+/**
+ * @brief Associate a custom tag with the event.
+ *
+ * This tag can be then retrieved with tevent_fd_get_tag()
+ *
+ * @param[in]  fde  The file descriptor event.
+ *
+ * @param[in]  tag  Custom tag.
+ */
+void tevent_fd_set_tag(struct tevent_fd *fde, uint64_t tag);
+
+/**
+ * @brief Get custom event tag.
+ */
+uint64_t tevent_fd_get_tag(const struct tevent_fd *fde);
+
+#ifdef DOXYGEN
+/**
+ * @brief Add a timed event
+ *
+ * @param[in]  ev       The event context to work on.
+ *
+ * @param[in]  mem_ctx  The talloc memory context to use.
+ *
+ * @param[in]  next_event  Timeval specifying the absolute time to fire this
+ * event. This is not an offset.
+ *
+ * @param[in]  handler  The callback handler for the event.
+ *
+ * @param[in]  private_data  The private data passed to the callback handler.
+ *
+ * @return The newly-created timer event, or NULL on error.
+ *
+ * @note To cancel a timer event before it fires, call talloc_free() on the
+ * event returned from this function. This event is automatically
+ * talloc_free()-ed after its event handler files, if it hasn't been freed yet.
+ *
+ * @note Unlike some mainloops, tevent timers are one-time events. To set up
+ * a recurring event, it is necessary to call tevent_add_timer() again during
+ * the handler processing.
+ *
+ * @note Due to the internal mainloop processing, a timer set to run
+ * immediately will do so after any other pending timers fire, but before
+ * any further file descriptor or signal handling events fire. Callers should
+ * not rely on this behavior!
+ */
+struct tevent_timer *tevent_add_timer(struct tevent_context *ev,
+                                      TALLOC_CTX *mem_ctx,
+                                      struct timeval next_event,
+                                      tevent_timer_handler_t handler,
+                                      void *private_data);
+#else
+struct tevent_timer *_tevent_add_timer(struct tevent_context *ev,
+				       TALLOC_CTX *mem_ctx,
+				       struct timeval next_event,
+				       tevent_timer_handler_t handler,
+				       void *private_data,
+				       const char *handler_name,
+				       const char *location);
+#define tevent_add_timer(ev, mem_ctx, next_event, handler, private_data) \
+	_tevent_add_timer(ev, mem_ctx, next_event, handler, private_data, \
+			  #handler, __location__)
+#endif
+
+/**
+ * @brief Set the time a tevent_timer fires
+ *
+ * @param[in]  te       The timer event to reset
+ *
+ * @param[in]  next_event  Timeval specifying the absolute time to fire this
+ * event. This is not an offset.
+ */
+void tevent_update_timer(struct tevent_timer *te, struct timeval next_event);
+
+/**
+ * @brief Associate a custom tag with the event.
+ *
+ * This tag can be then retrieved with tevent_timer_get_tag()
+ *
+ * @param[in]  te   The timer event.
+ *
+ * @param[in]  tag  Custom tag.
+ */
+void tevent_timer_set_tag(struct tevent_timer *te, uint64_t tag);
+
+/**
+ * @brief Get custom event tag.
+ */
+uint64_t tevent_timer_get_tag(const struct tevent_timer *te);
+
+#ifdef DOXYGEN
+/**
+ * Initialize an immediate event object
+ *
+ * This object can be used to trigger an event to occur immediately after
+ * returning from the current event (before any other event occurs)
+ *
+ * @param[in] mem_ctx  The talloc memory context to use as the parent
+ *
+ * @return An empty tevent_immediate object. Use tevent_schedule_immediate
+ * to populate and use it.
+ *
+ * @note Available as of tevent 0.9.8
+ */
+struct tevent_immediate *tevent_create_immediate(TALLOC_CTX *mem_ctx);
+#else
+struct tevent_immediate *_tevent_create_immediate(TALLOC_CTX *mem_ctx,
+						  const char *location);
+#define tevent_create_immediate(mem_ctx) \
+	_tevent_create_immediate(mem_ctx, __location__)
+#endif
+
+#ifdef DOXYGEN
+
+/**
+ * Schedule an event for immediate execution. This event will occur
+ * immediately after returning from the current event (before any other
+ * event occurs)
+ *
+ * @param[in] im       The tevent_immediate object to populate and use
+ * @param[in] ctx      The tevent_context to run this event
+ * @param[in] handler  The event handler to run when this event fires
+ * @param[in] private_data  Data to pass to the event handler
+ */
+void tevent_schedule_immediate(struct tevent_immediate *im,
+                struct tevent_context *ctx,
+                tevent_immediate_handler_t handler,
+                void *private_data);
+#else
+void _tevent_schedule_immediate(struct tevent_immediate *im,
+				struct tevent_context *ctx,
+				tevent_immediate_handler_t handler,
+				void *private_data,
+				const char *handler_name,
+				const char *location);
+#define tevent_schedule_immediate(im, ctx, handler, private_data) \
+	_tevent_schedule_immediate(im, ctx, handler, private_data, \
+				   #handler, __location__);
+#endif
+
+/**
+ * @brief Associate a custom tag with the event.
+ *
+ * This tag can be then retrieved with tevent_immediate_get_tag()
+ *
+ * @param[in]  im   The immediate event.
+ *
+ * @param[in]  tag  Custom tag.
+ */
+void tevent_immediate_set_tag(struct tevent_immediate *im, uint64_t tag);
+
+/**
+ * @brief Get custom event tag.
+ */
+uint64_t tevent_immediate_get_tag(const struct tevent_immediate *fde);
+
+#ifdef DOXYGEN
+/**
+ * @brief Add a tevent signal handler
+ *
+ * tevent_add_signal() creates a new event for handling a signal the next
+ * time through the mainloop. It implements a very simple traditional signal
+ * handler whose only purpose is to add the handler event into the mainloop.
+ *
+ * @param[in]  ev       The event context to work on.
+ *
+ * @param[in]  mem_ctx  The talloc memory context to use.
+ *
+ * @param[in]  signum   The signal to trap
+ *
+ * @param[in]  handler  The callback handler for the signal.
+ *
+ * @param[in]  sa_flags sigaction flags for this signal handler.
+ *
+ * @param[in]  private_data  The private data passed to the callback handler.
+ *
+ * @return The newly-created signal handler event, or NULL on error.
+ *
+ * @note To cancel a signal handler, call talloc_free() on the event returned
+ * from this function.
+ *
+ * @see tevent_num_signals, tevent_sa_info_queue_count
+ */
+struct tevent_signal *tevent_add_signal(struct tevent_context *ev,
+                     TALLOC_CTX *mem_ctx,
+                     int signum,
+                     int sa_flags,
+                     tevent_signal_handler_t handler,
+                     void *private_data);
+#else
+struct tevent_signal *_tevent_add_signal(struct tevent_context *ev,
+					 TALLOC_CTX *mem_ctx,
+					 int signum,
+					 int sa_flags,
+					 tevent_signal_handler_t handler,
+					 void *private_data,
+					 const char *handler_name,
+					 const char *location);
+#define tevent_add_signal(ev, mem_ctx, signum, sa_flags, handler, private_data) \
+	_tevent_add_signal(ev, mem_ctx, signum, sa_flags, handler, private_data, \
+			   #handler, __location__)
+#endif
+
+/**
+ * @brief Associate a custom tag with the event.
+ *
+ * This tag can be then retrieved with tevent_signal_get_tag()
+ *
+ * @param[in]  fde  The signal event.
+ *
+ * @param[in]  tag  Custom tag.
+ */
+void tevent_signal_set_tag(struct tevent_signal *se, uint64_t tag);
+
+/**
+ * @brief Get custom event tag.
+ */
+uint64_t tevent_signal_get_tag(const struct tevent_signal *se);
+
+/**
+ * @brief the number of supported signals
+ *
+ * This returns value of the configure time TEVENT_NUM_SIGNALS constant.
+ *
+ * The 'signum' argument of tevent_add_signal() must be less than
+ * TEVENT_NUM_SIGNALS.
+ *
+ * @see tevent_add_signal
+ */
+size_t tevent_num_signals(void);
+
+/**
+ * @brief the number of pending realtime signals
+ *
+ * This returns value of TEVENT_SA_INFO_QUEUE_COUNT.
+ *
+ * The tevent internals remember the last TEVENT_SA_INFO_QUEUE_COUNT
+ * siginfo_t structures for SA_SIGINFO signals. If the system generates
+ * more some signals get lost.
+ *
+ * @see tevent_add_signal
+ */
+size_t tevent_sa_info_queue_count(void);
+
+#ifdef DOXYGEN
+/**
+ * @brief Pass a single time through the mainloop
+ *
+ * This will process any appropriate signal, immediate, fd and timer events
+ *
+ * @param[in]  ev The event context to process
+ *
+ * @return Zero on success, nonzero if an internal error occurred
+ */
+int tevent_loop_once(struct tevent_context *ev);
+#else
+int _tevent_loop_once(struct tevent_context *ev, const char *location);
+#define tevent_loop_once(ev) \
+	_tevent_loop_once(ev, __location__)
+#endif
+
+#ifdef DOXYGEN
+/**
+ * @brief Run the mainloop
+ *
+ * The mainloop will run until there are no events remaining to be processed
+ *
+ * @param[in]  ev The event context to process
+ *
+ * @return Zero if all events have been processed. Nonzero if an internal
+ * error occurred.
+ */
+int tevent_loop_wait(struct tevent_context *ev);
+#else
+int _tevent_loop_wait(struct tevent_context *ev, const char *location);
+#define tevent_loop_wait(ev) \
+	_tevent_loop_wait(ev, __location__)
+#endif
+
+
+/**
+ * Assign a function to run when a tevent_fd is freed
+ *
+ * This function is a destructor for the tevent_fd. It does not automatically
+ * close the file descriptor. If this is the desired behavior, then it must be
+ * performed by the close_fn.
+ *
+ * @param[in] fde       File descriptor event on which to set the destructor
+ * @param[in] close_fn  Destructor to execute when fde is freed
+ *
+ * @note That the close_fn() on tevent_fd is *NOT* wrapped on contexts
+ * created by tevent_context_wrapper_create()!
+ *
+ * @see tevent_fd_set_close_fn
+ * @see tevent_context_wrapper_create
+ */
+void tevent_fd_set_close_fn(struct tevent_fd *fde,
+			    tevent_fd_close_fn_t close_fn);
+
+/**
+ * Automatically close the file descriptor when the tevent_fd is freed
+ *
+ * This function calls close(fd) internally.
+ *
+ * @param[in] fde  File descriptor event to auto-close
+ *
+ * @see tevent_fd_set_close_fn
+ */
+void tevent_fd_set_auto_close(struct tevent_fd *fde);
+
+/**
+ * Return the flags set on this file descriptor event
+ *
+ * @param[in] fde  File descriptor event to query
+ *
+ * @return The flags set on the event. See #TEVENT_FD_READ and
+ * #TEVENT_FD_WRITE
+ */
+uint16_t tevent_fd_get_flags(struct tevent_fd *fde);
+
+/**
+ * Set flags on a file descriptor event
+ *
+ * @param[in] fde    File descriptor event to set
+ * @param[in] flags  Flags to set on the event. See #TEVENT_FD_READ and
+ * #TEVENT_FD_WRITE
+ */
+void tevent_fd_set_flags(struct tevent_fd *fde, uint16_t flags);
+
+/**
+ * Query whether tevent supports signal handling
+ *
+ * @param[in] ev  An initialized tevent context
+ *
+ * @return True if this platform and tevent context support signal handling
+ */
+bool tevent_signal_support(struct tevent_context *ev);
+
+void tevent_set_abort_fn(void (*abort_fn)(const char *reason));
+
+/* bits for file descriptor event flags */
+
+/**
+ * Monitor a file descriptor for data to be read
+ */
+#define TEVENT_FD_READ 1
+/**
+ * Monitor a file descriptor for writeability
+ */
+#define TEVENT_FD_WRITE 2
+
+/**
+ * Convenience function for declaring a tevent_fd writable
+ */
+#define TEVENT_FD_WRITEABLE(fde) \
+	tevent_fd_set_flags(fde, tevent_fd_get_flags(fde) | TEVENT_FD_WRITE)
+
+/**
+ * Convenience function for declaring a tevent_fd readable
+ */
+#define TEVENT_FD_READABLE(fde) \
+	tevent_fd_set_flags(fde, tevent_fd_get_flags(fde) | TEVENT_FD_READ)
+
+/**
+ * Convenience function for declaring a tevent_fd non-writable
+ */
+#define TEVENT_FD_NOT_WRITEABLE(fde) \
+	tevent_fd_set_flags(fde, tevent_fd_get_flags(fde) & ~TEVENT_FD_WRITE)
+
+/**
+ * Convenience function for declaring a tevent_fd non-readable
+ */
+#define TEVENT_FD_NOT_READABLE(fde) \
+	tevent_fd_set_flags(fde, tevent_fd_get_flags(fde) & ~TEVENT_FD_READ)
+
+/**
+ * Debug level of tevent
+ */
+enum tevent_debug_level {
+	TEVENT_DEBUG_FATAL,
+	TEVENT_DEBUG_ERROR,
+	TEVENT_DEBUG_WARNING,
+	TEVENT_DEBUG_TRACE
+};
+
+/**
+ * @brief The tevent debug callbac.
+ *
+ * @param[in]  context  The memory context to use.
+ *
+ * @param[in]  level    The debug level.
+ *
+ * @param[in]  fmt      The format string.
+ *
+ * @param[in]  ap       The arguments for the format string.
+ */
+typedef void (*tevent_debug_fn)(void *context,
+				enum tevent_debug_level level,
+				const char *fmt,
+				va_list ap) PRINTF_ATTRIBUTE(3,0);
+
+/**
+ * Set destination for tevent debug messages
+ *
+ * @param[in] ev        Event context to debug
+ * @param[in] debug     Function to handle output printing
+ * @param[in] context   The context to pass to the debug function.
+ *
+ * @return Always returns 0 as of version 0.9.8
+ *
+ * @note Default is to emit no debug messages
+ */
+int tevent_set_debug(struct tevent_context *ev,
+		     tevent_debug_fn debug,
+		     void *context);
+
+/**
+ * Designate stderr for debug message output
+ *
+ * @param[in] ev     Event context to debug
+ *
+ * @note This function will only output TEVENT_DEBUG_FATAL, TEVENT_DEBUG_ERROR
+ * and TEVENT_DEBUG_WARNING messages. For TEVENT_DEBUG_TRACE, please define a
+ * function for tevent_set_debug()
+ */
+int tevent_set_debug_stderr(struct tevent_context *ev);
+
+enum tevent_trace_point {
+	/**
+	 * Corresponds to a trace point just before waiting
+	 */
+	TEVENT_TRACE_BEFORE_WAIT,
+	/**
+	 * Corresponds to a trace point just after waiting
+	 */
+	TEVENT_TRACE_AFTER_WAIT,
+#define TEVENT_HAS_LOOP_ONCE_TRACE_POINTS 1
+	/**
+	 * Corresponds to a trace point just before calling
+	 * the loop_once() backend function.
+	 */
+	TEVENT_TRACE_BEFORE_LOOP_ONCE,
+	/**
+	 * Corresponds to a trace point right after the
+	 * loop_once() backend function has returned.
+	 */
+	TEVENT_TRACE_AFTER_LOOP_ONCE,
+};
+
+typedef void (*tevent_trace_callback_t)(enum tevent_trace_point,
+					void *private_data);
+
+/**
+ * Register a callback to be called at certain trace points
+ *
+ * @param[in] ev             Event context
+ * @param[in] cb             Trace callback
+ * @param[in] private_data   Data to be passed to callback
+ *
+ * @note The callback will be called at trace points defined by
+ * tevent_trace_point.  Call with NULL to reset.
+ */
+void tevent_set_trace_callback(struct tevent_context *ev,
+			       tevent_trace_callback_t cb,
+			       void *private_data);
+
+/**
+ * Retrieve the current trace callback
+ *
+ * @param[in] ev             Event context
+ * @param[out] cb            Registered trace callback
+ * @param[out] private_data  Registered data to be passed to callback
+ *
+ * @note This can be used to allow one component that wants to
+ * register a callback to respect the callback that another component
+ * has already registered.
+ */
+void tevent_get_trace_callback(struct tevent_context *ev,
+			       tevent_trace_callback_t *cb,
+			       void *private_data);
+
+enum tevent_event_trace_point {
+	/**
+	 * Corresponds to a trace point just before the event is added.
+	 */
+	TEVENT_EVENT_TRACE_ATTACH,
+
+	/**
+	 * Corresponds to a trace point just before the event is removed.
+	 */
+	TEVENT_EVENT_TRACE_DETACH,
+
+	/**
+	 * Corresponds to a trace point just before the event handler is called.
+	 */
+	TEVENT_EVENT_TRACE_BEFORE_HANDLER,
+};
+
+typedef void (*tevent_trace_fd_callback_t)(struct tevent_fd *fde,
+					   enum tevent_event_trace_point,
+					   void *private_data);
+
+typedef void (*tevent_trace_signal_callback_t)(struct tevent_signal *se,
+					       enum tevent_event_trace_point,
+					       void *private_data);
+
+typedef void (*tevent_trace_timer_callback_t)(struct tevent_timer *te,
+					      enum tevent_event_trace_point,
+					      void *private_data);
+
+typedef void (*tevent_trace_immediate_callback_t)(struct tevent_immediate *im,
+						  enum tevent_event_trace_point,
+						  void *private_data);
+
+/**
+ * Register a callback to be called at certain trace points of fd event.
+ *
+ * @param[in] ev             Event context
+ * @param[in] cb             Trace callback
+ * @param[in] private_data   Data to be passed to callback
+ *
+ * @note The callback will be called at trace points defined by
+ * tevent_event_trace_point. Call with NULL to reset.
+ */
+void tevent_set_trace_fd_callback(struct tevent_context *ev,
+				  tevent_trace_fd_callback_t cb,
+				  void *private_data);
+
+/**
+ * Retrieve the current trace callback of file descriptor event.
+ *
+ * @param[in] ev             Event context
+ * @param[out] cb            Registered trace callback
+ * @param[out] p_private_data  Registered data to be passed to callback
+ *
+ * @note This can be used to allow one component that wants to
+ * register a callback to respect the callback that another component
+ * has already registered.
+ */
+void tevent_get_trace_fd_callback(struct tevent_context *ev,
+				  tevent_trace_fd_callback_t *cb,
+				  void *p_private_data);
+
+/**
+ * Register a callback to be called at certain trace points of signal event.
+ *
+ * @param[in] ev             Event context
+ * @param[in] cb             Trace callback
+ * @param[in] private_data   Data to be passed to callback
+ *
+ * @note The callback will be called at trace points defined by
+ * tevent_event_trace_point. Call with NULL to reset.
+ */
+void tevent_set_trace_signal_callback(struct tevent_context *ev,
+				      tevent_trace_signal_callback_t cb,
+				      void *private_data);
+
+/**
+ * Retrieve the current trace callback of signal event.
+ *
+ * @param[in] ev             Event context
+ * @param[out] cb            Registered trace callback
+ * @param[out] p_private_data  Registered data to be passed to callback
+ *
+ * @note This can be used to allow one component that wants to
+ * register a callback to respect the callback that another component
+ * has already registered.
+ */
+void tevent_get_trace_signal_callback(struct tevent_context *ev,
+				      tevent_trace_signal_callback_t *cb,
+				      void *p_private_data);
+
+/**
+ * Register a callback to be called at certain trace points of timer event.
+ *
+ * @param[in] ev             Event context
+ * @param[in] cb             Trace callback
+ * @param[in] private_data   Data to be passed to callback
+ *
+ * @note The callback will be called at trace points defined by
+ * tevent_event_trace_point. Call with NULL to reset.
+ */
+void tevent_set_trace_timer_callback(struct tevent_context *ev,
+				     tevent_trace_timer_callback_t cb,
+				     void *private_data);
+
+/**
+ * Retrieve the current trace callback of timer event.
+ *
+ * @param[in] ev             Event context
+ * @param[out] cb            Registered trace callback
+ * @param[out] p_private_data  Registered data to be passed to callback
+ *
+ * @note This can be used to allow one component that wants to
+ * register a callback to respect the callback that another component
+ * has already registered.
+ */
+void tevent_get_trace_timer_callback(struct tevent_context *ev,
+				     tevent_trace_timer_callback_t *cb,
+				     void *p_private_data);
+
+/**
+ * Register a callback to be called at certain trace points of immediate event.
+ *
+ * @param[in] ev             Event context
+ * @param[in] cb             Trace callback
+ * @param[in] private_data   Data to be passed to callback
+ *
+ * @note The callback will be called at trace points defined by
+ * tevent_event_trace_point. Call with NULL to reset.
+ */
+void tevent_set_trace_immediate_callback(struct tevent_context *ev,
+					 tevent_trace_immediate_callback_t cb,
+					 void *private_data);
+
+/**
+ * Retrieve the current trace callback of immediate event.
+ *
+ * @param[in] ev             Event context
+ * @param[out] cb            Registered trace callback
+ * @param[out] p_private_data  Registered data to be passed to callback
+ *
+ * @note This can be used to allow one component that wants to
+ * register a callback to respect the callback that another component
+ * has already registered.
+ */
+void tevent_get_trace_immediate_callback(struct tevent_context *ev,
+					 tevent_trace_immediate_callback_t *cb,
+					 void *p_private_data);
+
+/**
+ * @}
+ */
+
+/**
+ * @defgroup tevent_request The tevent request functions.
+ * @ingroup tevent
+ *
+ * A tevent_req represents an asynchronous computation.
+ *
+ * The tevent_req group of API calls is the recommended way of
+ * programming async computations within tevent. In particular the
+ * file descriptor (tevent_add_fd) and timer (tevent_add_timed) events
+ * are considered too low-level to be used in larger computations. To
+ * read and write from and to sockets, Samba provides two calls on top
+ * of tevent_add_fd: tstream_read_packet_send/recv and tstream_writev_send/recv.
+ * These requests are much easier to compose than the low-level event
+ * handlers called from tevent_add_fd.
+ *
+ * A lot of the simplicity tevent_req has brought to the notoriously
+ * hairy async programming came via a set of conventions that every
+ * async computation programmed should follow. One central piece of
+ * these conventions is the naming of routines and variables.
+ *
+ * Every async computation needs a name (sensibly called "computation"
+ * down from here). From this name quite a few naming conventions are
+ * derived.
+ *
+ * Every computation that requires local state needs a
+ * @code
+ * struct computation_state {
+ *     int local_var;
+ * };
+ * @endcode
+ * Even if no local variables are required, such a state struct should
+ * be created containing a dummy variable. Quite a few helper
+ * functions and macros (for example tevent_req_create()) assume such
+ * a state struct.
+ *
+ * An async computation is started by a computation_send
+ * function. When it is finished, its result can be received by a
+ * computation_recv function. For an example how to set up an async
+ * computation, see the code example in the documentation for
+ * tevent_req_create() and tevent_req_post(). The prototypes for _send
+ * and _recv functions should follow some conventions:
+ *
+ * @code
+ * struct tevent_req *computation_send(TALLOC_CTX *mem_ctx,
+ *                                     struct tevent_context *ev,
+ *                                     ... further args);
+ * int computation_recv(struct tevent_req *req, ... further output args);
+ * @endcode
+ *
+ * The "int" result of computation_recv() depends on the result the
+ * sync version of the function would have, "int" is just an example
+ * here.
+ *
+ * Another important piece of the conventions is that the program flow
+ * is interrupted as little as possible. Because a blocking
+ * sub-computation requires that the flow needs to continue in a
+ * separate function that is the logical sequel of some computation,
+ * it should lexically follow sending off the blocking
+ * sub-computation. Setting the callback function via
+ * tevent_req_set_callback() requires referencing a function lexically
+ * below the call to tevent_req_set_callback(), forward declarations
+ * are required. A lot of the async computations thus begin with a
+ * sequence of declarations such as
+ *
+ * @code
+ * static void computation_step1_done(struct tevent_req *subreq);
+ * static void computation_step2_done(struct tevent_req *subreq);
+ * static void computation_step3_done(struct tevent_req *subreq);
+ * @endcode
+ *
+ * It really helps readability a lot to do these forward declarations,
+ * because the lexically sequential program flow makes the async
+ * computations almost as clear to read as a normal, sync program
+ * flow.
+ *
+ * It is up to the user of the async computation to talloc_free it
+ * after it has finished. If an async computation should be aborted,
+ * the tevent_req structure can be talloc_free'ed. After it has
+ * finished, it should talloc_free'ed by the API user.
+ *
+ * tevent_req variable naming conventions:
+ *
+ * The name of the variable pointing to the tevent_req structure
+ * returned by a _send() function SHOULD be named differently between
+ * implementation and caller.
+ *
+ * From the point of view of the implementation (of the _send() and
+ * _recv() functions) the variable returned by tevent_req_create() is
+ * always called @em req.
+ *
+ * While the caller of the _send() function should use @em subreq to
+ * hold the result.
+ *
+ * @see tevent_req_create()
+ * @see tevent_req_fn()
+ *
+ * @{
+ */
+
+/**
+ * An async request moves from TEVENT_REQ_INIT to
+ * TEVENT_REQ_IN_PROGRESS. All other states are valid after a request
+ * has finished.
+ */
+enum tevent_req_state {
+	/**
+	 * We are creating the request
+	 */
+	TEVENT_REQ_INIT,
+	/**
+	 * We are waiting the request to complete
+	 */
+	TEVENT_REQ_IN_PROGRESS,
+	/**
+	 * The request is finished successfully
+	 */
+	TEVENT_REQ_DONE,
+	/**
+	 * A user error has occurred. The user error has been
+	 * indicated by tevent_req_error(), it can be retrieved via
+	 * tevent_req_is_error().
+	 */
+	TEVENT_REQ_USER_ERROR,
+	/**
+	 * Request timed out after the timeout set by tevent_req_set_endtime.
+	 */
+	TEVENT_REQ_TIMED_OUT,
+	/**
+	 * An internal allocation has failed, or tevent_req_nomem has
+	 * been given a NULL pointer as the first argument.
+	 */
+	TEVENT_REQ_NO_MEMORY,
+	/**
+	 * The request has been received by the caller. No further
+	 * action is valid.
+	 */
+	TEVENT_REQ_RECEIVED
+};
+
+/**
+ * @brief An async request
+ */
+struct tevent_req;
+
+/**
+ * @brief A tevent request callback function.
+ *
+ * @param[in]  subreq      The tevent async request which executed this callback.
+ */
+typedef void (*tevent_req_fn)(struct tevent_req *subreq);
+
+/**
+ * @brief Set an async request callback.
+ *
+ * See the documentation of tevent_req_post() for an example how this
+ * is supposed to be used.
+ *
+ * @param[in]  req      The async request to set the callback.
+ *
+ * @param[in]  fn       The callback function to set.
+ *
+ * @param[in]  pvt      A pointer to private data to pass to the async request
+ *                      callback.
+ */
+void tevent_req_set_callback(struct tevent_req *req, tevent_req_fn fn, void *pvt);
+
+#ifdef DOXYGEN
+/**
+ * @brief Get the private data cast to the given type for a callback from
+ *        a tevent request structure.
+ *
+ * @code
+ * static void computation_done(struct tevent_req *subreq) {
+ *     struct tevent_req *req = tevent_req_callback_data(subreq, struct tevent_req);
+ *     struct computation_state *state = tevent_req_data(req, struct computation_state);
+ *     .... more things, eventually maybe call tevent_req_done(req);
+ * }
+ * @endcode
+ *
+ * @param[in]  req      The structure to get the callback data from.
+ *
+ * @param[in]  type     The type of the private callback data to get.
+ *
+ * @return              The type casted private data set NULL if not set.
+ */
+void *tevent_req_callback_data(struct tevent_req *req, #type);
+#else
+void *_tevent_req_callback_data(struct tevent_req *req);
+#define tevent_req_callback_data(_req, _type) \
+	talloc_get_type_abort(_tevent_req_callback_data(_req), _type)
+#endif
+
+#ifdef DOXYGEN
+/**
+ * @brief Get the private data for a callback from a tevent request structure.
+ *
+ * @param[in]  req      The structure to get the callback data from.
+ *
+ * @return              The private data or NULL if not set.
+ */
+void *tevent_req_callback_data_void(struct tevent_req *req);
+#else
+#define tevent_req_callback_data_void(_req) \
+	_tevent_req_callback_data(_req)
+#endif
+
+#ifdef DOXYGEN
+/**
+ * @brief Get the private data from a tevent request structure.
+ *
+ * When the tevent_req has been created by tevent_req_create, the
+ * result of tevent_req_data() is the state variable created by
+ * tevent_req_create() as a child of the req.
+ *
+ * @param[in]  req      The structure to get the private data from.
+ *
+ * @param[in]  type	The type of the private data
+ *
+ * @return              The private data or NULL if not set.
+ */
+void *tevent_req_data(struct tevent_req *req, #type);
+#else
+void *_tevent_req_data(struct tevent_req *req);
+#define tevent_req_data(_req, _type) \
+	talloc_get_type_abort(_tevent_req_data(_req), _type)
+#endif
+
+/**
+ * @brief The print function which can be set for a tevent async request.
+ *
+ * @param[in]  req      The tevent async request.
+ *
+ * @param[in]  ctx      A talloc memory context which can be uses to allocate
+ *                      memory.
+ *
+ * @return              An allocated string buffer to print.
+ *
+ * Example:
+ * @code
+ *   static char *my_print(struct tevent_req *req, TALLOC_CTX *mem_ctx)
+ *   {
+ *     struct my_data *data = tevent_req_data(req, struct my_data);
+ *     char *result;
+ *
+ *     result = tevent_req_default_print(mem_ctx, req);
+ *     if (result == NULL) {
+ *       return NULL;
+ *     }
+ *
+ *     return talloc_asprintf_append_buffer(result, "foo=%d, bar=%d",
+ *       data->foo, data->bar);
+ *   }
+ * @endcode
+ */
+typedef char *(*tevent_req_print_fn)(struct tevent_req *req, TALLOC_CTX *ctx);
+
+/**
+ * @brief This function sets a print function for the given request.
+ *
+ * This function can be used to setup a print function for the given request.
+ * This will be triggered if the tevent_req_print() function was
+ * called on the given request.
+ *
+ * @param[in]  req      The request to use.
+ *
+ * @param[in]  fn       A pointer to the print function
+ *
+ * @note This function should only be used for debugging.
+ */
+void tevent_req_set_print_fn(struct tevent_req *req, tevent_req_print_fn fn);
+
+/**
+ * @brief The default print function for creating debug messages.
+ *
+ * The function should not be used by users of the async API,
+ * but custom print function can use it and append custom text
+ * to the string.
+ *
+ * @param[in]  req      The request to be printed.
+ *
+ * @param[in]  mem_ctx  The memory context for the result.
+ *
+ * @return              Text representation of request.
+ *
+ */
+char *tevent_req_default_print(struct tevent_req *req, TALLOC_CTX *mem_ctx);
+
+/**
+ * @brief Print an tevent_req structure in debug messages.
+ *
+ * This function should be used by callers of the async API.
+ *
+ * @param[in]  mem_ctx  The memory context for the result.
+ *
+ * @param[in] req       The request to be printed.
+ *
+ * @return              Text representation of request.
+ */
+char *tevent_req_print(TALLOC_CTX *mem_ctx, struct tevent_req *req);
+
+/**
+ * @brief A typedef for a cancel function for a tevent request.
+ *
+ * @param[in]  req      The tevent request calling this function.
+ *
+ * @return              True if the request could be canceled, false if not.
+ */
+typedef bool (*tevent_req_cancel_fn)(struct tevent_req *req);
+
+/**
+ * @brief This function sets a cancel function for the given tevent request.
+ *
+ * This function can be used to setup a cancel function for the given request.
+ * This will be triggered if the tevent_req_cancel() function was
+ * called on the given request.
+ *
+ * @param[in]  req      The request to use.
+ *
+ * @param[in]  fn       A pointer to the cancel function.
+ */
+void tevent_req_set_cancel_fn(struct tevent_req *req, tevent_req_cancel_fn fn);
+
+#ifdef DOXYGEN
+/**
+ * @brief Try to cancel the given tevent request.
+ *
+ * This function can be used to cancel the given request.
+ *
+ * It is only possible to cancel a request when the implementation
+ * has registered a cancel function via the tevent_req_set_cancel_fn().
+ *
+ * @param[in]  req      The request to use.
+ *
+ * @return              This function returns true if the request is
+ *                      cancelable, otherwise false is returned.
+ *
+ * @note Even if the function returns true, the caller need to wait
+ *       for the function to complete normally.
+ *       Only the _recv() function of the given request indicates
+ *       if the request was really canceled.
+ */
+bool tevent_req_cancel(struct tevent_req *req);
+#else
+bool _tevent_req_cancel(struct tevent_req *req, const char *location);
+#define tevent_req_cancel(req) \
+	_tevent_req_cancel(req, __location__)
+#endif
+
+/**
+ * @brief A typedef for a cleanup function for a tevent request.
+ *
+ * @param[in]  req       The tevent request calling this function.
+ *
+ * @param[in]  req_state The current tevent_req_state.
+ *
+ */
+typedef void (*tevent_req_cleanup_fn)(struct tevent_req *req,
+				      enum tevent_req_state req_state);
+
+/**
+ * @brief This function sets a cleanup function for the given tevent request.
+ *
+ * This function can be used to setup a cleanup function for the given request.
+ * This will be triggered when the tevent_req_done() or tevent_req_error()
+ * function was called, before notifying the callers callback function,
+ * and also before scheduling the deferred trigger.
+ *
+ * This might be useful if more than one tevent_req belong together
+ * and need to finish both requests at the same time.
+ *
+ * The cleanup function is able to call tevent_req_done() or tevent_req_error()
+ * recursively, the cleanup function is only triggered the first time.
+ *
+ * The cleanup function is also called by tevent_req_received()
+ * (possibly triggered from tevent_req_destructor()) before destroying
+ * the private data of the tevent_req.
+ *
+ * @param[in]  req      The request to use.
+ *
+ * @param[in]  fn       A pointer to the cancel function.
+ */
+void tevent_req_set_cleanup_fn(struct tevent_req *req, tevent_req_cleanup_fn fn);
+
+#ifdef DOXYGEN
+/**
+ * @brief Create an async tevent request.
+ *
+ * The new async request will be initialized in state TEVENT_REQ_IN_PROGRESS.
+ *
+ * @code
+ * struct tevent_req *req;
+ * struct computation_state *state;
+ * req = tevent_req_create(mem_ctx, &state, struct computation_state);
+ * @endcode
+ *
+ * Tevent_req_create() allocates and zeros the state variable as a talloc
+ * child of its result. The state variable should be used as the talloc
+ * parent for all temporary variables that are allocated during the async
+ * computation. This way, when the user of the async computation frees
+ * the request, the state as a talloc child will be free'd along with
+ * all the temporary variables hanging off the state.
+ *
+ * @param[in] mem_ctx   The memory context for the result.
+ * @param[in] pstate    Pointer to the private request state.
+ * @param[in] type      The name of the request.
+ *
+ * @return              A new async request. NULL on error.
+ */
+struct tevent_req *tevent_req_create(TALLOC_CTX *mem_ctx,
+				     void **pstate, #type);
+#else
+struct tevent_req *_tevent_req_create(TALLOC_CTX *mem_ctx,
+				      void *pstate,
+				      size_t state_size,
+				      const char *type,
+				      const char *location);
+
+#define tevent_req_create(_mem_ctx, _pstate, _type) \
+	_tevent_req_create((_mem_ctx), (_pstate), sizeof(_type), \
+			   #_type, __location__)
+#endif
+
+/**
+ * @brief Set a timeout for an async request. On failure, "req" is already
+ *        set to state TEVENT_REQ_NO_MEMORY.
+ *
+ * @param[in]  req      The request to set the timeout for.
+ *
+ * @param[in]  ev       The event context to use for the timer.
+ *
+ * @param[in]  endtime  The endtime of the request.
+ *
+ * @return              True if succeeded, false if not.
+ */
+bool tevent_req_set_endtime(struct tevent_req *req,
+			    struct tevent_context *ev,
+			    struct timeval endtime);
+
+/**
+ * @brief Reset the timer set by tevent_req_set_endtime.
+ *
+ * @param[in]  req      The request to reset the timeout for
+ */
+void tevent_req_reset_endtime(struct tevent_req *req);
+
+#ifdef DOXYGEN
+/**
+ * @brief Call the notify callback of the given tevent request manually.
+ *
+ * @param[in]  req      The tevent request to call the notify function from.
+ *
+ * @see tevent_req_set_callback()
+ */
+void tevent_req_notify_callback(struct tevent_req *req);
+#else
+void _tevent_req_notify_callback(struct tevent_req *req, const char *location);
+#define tevent_req_notify_callback(req)		\
+	_tevent_req_notify_callback(req, __location__)
+#endif
+
+#ifdef DOXYGEN
+/**
+ * @brief An async request has successfully finished.
+ *
+ * This function is to be used by implementors of async requests. When a
+ * request is successfully finished, this function calls the user's completion
+ * function.
+ *
+ * @param[in]  req       The finished request.
+ */
+void tevent_req_done(struct tevent_req *req);
+#else
+void _tevent_req_done(struct tevent_req *req,
+		      const char *location);
+#define tevent_req_done(req) \
+	_tevent_req_done(req, __location__)
+#endif
+
+#ifdef DOXYGEN
+/**
+ * @brief An async request has seen an error.
+ *
+ * This function is to be used by implementors of async requests. When a
+ * request can not successfully completed, the implementation should call this
+ * function with the appropriate status code.
+ *
+ * If error is 0 the function returns false and does nothing more.
+ *
+ * @param[in]  req      The request with an error.
+ *
+ * @param[in]  error    The error code.
+ *
+ * @return              On success true is returned, false if error is 0.
+ *
+ * @code
+ * int error = first_function();
+ * if (tevent_req_error(req, error)) {
+ *      return;
+ * }
+ *
+ * error = second_function();
+ * if (tevent_req_error(req, error)) {
+ *      return;
+ * }
+ *
+ * tevent_req_done(req);
+ * return;
+ * @endcode
+ */
+bool tevent_req_error(struct tevent_req *req,
+		      uint64_t error);
+#else
+bool _tevent_req_error(struct tevent_req *req,
+		       uint64_t error,
+		       const char *location);
+#define tevent_req_error(req, error) \
+	_tevent_req_error(req, error, __location__)
+#endif
+
+#ifdef DOXYGEN
+/**
+ * @brief Helper function for nomem check.
+ *
+ * Convenience helper to easily check alloc failure within a callback
+ * implementing the next step of an async request.
+ *
+ * @param[in]  p        The pointer to be checked.
+ *
+ * @param[in]  req      The request being processed.
+ *
+ * @code
+ * p = talloc(mem_ctx, bla);
+ * if (tevent_req_nomem(p, req)) {
+ *      return;
+ * }
+ * @endcode
+ */
+bool tevent_req_nomem(const void *p,
+		      struct tevent_req *req);
+#else
+bool _tevent_req_nomem(const void *p,
+		       struct tevent_req *req,
+		       const char *location);
+#define tevent_req_nomem(p, req) \
+	_tevent_req_nomem(p, req, __location__)
+#endif
+
+#ifdef DOXYGEN
+/**
+ * @brief Indicate out of memory to a request
+ *
+ * @param[in]  req      The request being processed.
+ */
+void tevent_req_oom(struct tevent_req *req);
+#else
+void _tevent_req_oom(struct tevent_req *req,
+		     const char *location);
+#define tevent_req_oom(req) \
+	_tevent_req_oom(req, __location__)
+#endif
+
+/**
+ * @brief Finish a request before the caller had a chance to set the callback.
+ *
+ * An implementation of an async request might find that it can either finish
+ * the request without waiting for an external event, or it can not even start
+ * the engine. To present the illusion of a callback to the user of the API,
+ * the implementation can call this helper function which triggers an
+ * immediate event. This way the caller can use the same calling
+ * conventions, independent of whether the request was actually deferred.
+ *
+ * @code
+ * struct tevent_req *computation_send(TALLOC_CTX *mem_ctx,
+ *                                     struct tevent_context *ev)
+ * {
+ *     struct tevent_req *req, *subreq;
+ *     struct computation_state *state;
+ *     req = tevent_req_create(mem_ctx, &state, struct computation_state);
+ *     if (req == NULL) {
+ *         return NULL;
+ *     }
+ *     subreq = subcomputation_send(state, ev);
+ *     if (tevent_req_nomem(subreq, req)) {
+ *         return tevent_req_post(req, ev);
+ *     }
+ *     tevent_req_set_callback(subreq, computation_done, req);
+ *     return req;
+ * }
+ * @endcode
+ *
+ * @param[in]  req      The finished request.
+ *
+ * @param[in]  ev       The tevent_context for the immediate event.
+ *
+ * @return              The given request will be returned.
+ */
+struct tevent_req *tevent_req_post(struct tevent_req *req,
+				   struct tevent_context *ev);
+
+/**
+ * @brief Finish multiple requests within one function
+ *
+ * Normally tevent_req_notify_callback() and all wrappers
+ * (e.g. tevent_req_done() and tevent_req_error())
+ * need to be the last thing an event handler should call.
+ * This is because the callback is likely to destroy the
+ * context of the current function.
+ *
+ * If a function wants to notify more than one caller,
+ * it is dangerous if it just triggers multiple callbacks
+ * in a row. With tevent_req_defer_callback() it is possible
+ * to set an event context that will be used to defer the callback
+ * via an immediate event (similar to tevent_req_post()).
+ *
+ * @code
+ * struct complete_state {
+ *       struct tevent_context *ev;
+ *
+ *       struct tevent_req **reqs;
+ * };
+ *
+ * void complete(struct complete_state *state)
+ * {
+ *       size_t i, c = talloc_array_length(state->reqs);
+ *
+ *       for (i=0; i < c; i++) {
+ *            tevent_req_defer_callback(state->reqs[i], state->ev);
+ *            tevent_req_done(state->reqs[i]);
+ *       }
+ * }
+ * @endcode
+ *
+ * @param[in]  req      The finished request.
+ *
+ * @param[in]  ev       The tevent_context for the immediate event.
+ *
+ * @return              The given request will be returned.
+ */
+void tevent_req_defer_callback(struct tevent_req *req,
+			       struct tevent_context *ev);
+
+/**
+ * @brief Check if the given request is still in progress.
+ *
+ * It is typically used by sync wrapper functions.
+ *
+ * @param[in]  req      The request to poll.
+ *
+ * @return              The boolean form of "is in progress".
+ */
+bool tevent_req_is_in_progress(struct tevent_req *req);
+
+/**
+ * @brief Actively poll for the given request to finish.
+ *
+ * This function is typically used by sync wrapper functions.
+ *
+ * @param[in]  req      The request to poll.
+ *
+ * @param[in]  ev       The tevent_context to be used.
+ *
+ * @return              On success true is returned. If a critical error has
+ *                      happened in the tevent loop layer false is returned.
+ *                      This is not the return value of the given request!
+ *
+ * @note This should only be used if the given tevent context was created by the
+ * caller, to avoid event loop nesting.
+ *
+ * @code
+ * req = tstream_writev_queue_send(mem_ctx,
+ *                                 ev_ctx,
+ *                                 tstream,
+ *                                 send_queue,
+ *                                 iov, 2);
+ * ok = tevent_req_poll(req, tctx->ev);
+ * rc = tstream_writev_queue_recv(req, &sys_errno);
+ * TALLOC_FREE(req);
+ * @endcode
+ */
+bool tevent_req_poll(struct tevent_req *req,
+		     struct tevent_context *ev);
+
+/**
+ * @brief Get the tevent request state and the actual error set by
+ * tevent_req_error.
+ *
+ * @code
+ * int computation_recv(struct tevent_req *req, uint64_t *perr)
+ * {
+ *     enum tevent_req_state state;
+ *     uint64_t err;
+ *     if (tevent_req_is_error(req, &state, &err)) {
+ *         *perr = err;
+ *         return -1;
+ *     }
+ *     return 0;
+ * }
+ * @endcode
+ *
+ * @param[in]  req      The tevent request to get the error from.
+ *
+ * @param[out] state    A pointer to store the tevent request error state.
+ *
+ * @param[out] error    A pointer to store the error set by tevent_req_error().
+ *
+ * @return              True if the function could set error and state, false
+ *                      otherwise.
+ *
+ * @see tevent_req_error()
+ */
+bool tevent_req_is_error(struct tevent_req *req,
+			 enum tevent_req_state *state,
+			 uint64_t *error);
+
+/**
+ * @brief Use as the last action of a _recv() function.
+ *
+ * This function destroys the attached private data.
+ *
+ * @param[in]  req      The finished request.
+ */
+void tevent_req_received(struct tevent_req *req);
+
+/**
+ * @brief Mark a tevent_req for profiling
+ *
+ * This will turn on profiling for this tevent_req an all subreqs that
+ * are directly started as helper requests off this
+ * tevent_req. subreqs are chained by walking up the talloc_parent
+ * hierarchy at a subreq's tevent_req_create. This means to get the
+ * profiling chain right the subreq that needs to be profiled as part
+ * of this tevent_req's profile must be a talloc child of the requests
+ * state variable.
+ *
+ * @param[in] req The request to do tracing for
+ *
+ * @return        False if the profile could not be activated
+ */
+bool tevent_req_set_profile(struct tevent_req *req);
+
+struct tevent_req_profile;
+
+/**
+ * @brief Get the a request's profile for inspection
+ *
+ * @param[in] req The request to get the profile from
+ *
+ * @return        The request's profile
+ */
+const struct tevent_req_profile *tevent_req_get_profile(
+	struct tevent_req *req);
+
+/**
+ * @brief Move the profile out of a request
+ *
+ * This function detaches the request's profile from the request, so
+ * that the profile can outlive the request in a _recv function.
+ *
+ * @param[in] req     The request to move the profile out of
+ * @param[in] mem_ctx The new talloc context for the profile
+ *
+ * @return            The moved profile
+ */
+
+struct tevent_req_profile *tevent_req_move_profile(struct tevent_req *req,
+						   TALLOC_CTX *mem_ctx);
+
+/**
+ * @brief Get a profile description
+ *
+ * @param[in] profile  The profile to be queried
+ * @param[in] req_name The name of the request (state's name)
+ *
+ * "req_name" after this call is still in talloc-posession of "profile"
+ */
+void tevent_req_profile_get_name(const struct tevent_req_profile *profile,
+				 const char **req_name);
+
+/**
+ * @brief Get a profile's start event data
+ *
+ * @param[in] profile        The profile to be queried
+ * @param[in] start_location The location where this event started
+ * @param[in] start_time     The time this event started
+ *
+ * "start_location" after this call is still in talloc-posession of "profile"
+ */
+void tevent_req_profile_get_start(const struct tevent_req_profile *profile,
+				  const char **start_location,
+				  struct timeval *start_time);
+
+/**
+ * @brief Get a profile's stop event data
+ *
+ * @param[in] profile        The profile to be queried
+ * @param[in] stop_location  The location where this event stopped
+ * @param[in] stop_time      The time this event stopped
+ *
+ * "stop_location" after this call is still in talloc-posession of "profile"
+ */
+void tevent_req_profile_get_stop(const struct tevent_req_profile *profile,
+				 const char **stop_location,
+				 struct timeval *stop_time);
+
+/**
+ * @brief Get a profile's result data
+ *
+ * @param[in] pid        The process where this profile was taken
+ * @param[in] state      The status the profile's tevent_req finished with
+ * @param[in] user_error The user error of the profile's tevent_req
+ */
+void tevent_req_profile_get_status(const struct tevent_req_profile *profile,
+				   pid_t *pid,
+				   enum tevent_req_state *state,
+				   uint64_t *user_error);
+
+/**
+ * @brief Retrieve the first subreq's profile from a profile
+ *
+ * @param[in] profile The profile to query
+ *
+ * @return The first tevent subreq's profile
+ */
+const struct tevent_req_profile *tevent_req_profile_get_subprofiles(
+	const struct tevent_req_profile *profile);
+
+/**
+ * @brief Walk the chain of subreqs
+ *
+ * @param[in] profile The subreq's profile to walk
+ *
+ * @return The next subprofile in the list
+ */
+const struct tevent_req_profile *tevent_req_profile_next(
+	const struct tevent_req_profile *profile);
+
+/**
+ * @brief Create a fresh tevent_req_profile
+ *
+ * @param[in] mem_ctx The talloc context to hang the fresh struct off
+ *
+ * @return The fresh struct
+ */
+struct tevent_req_profile *tevent_req_profile_create(TALLOC_CTX *mem_ctx);
+
+/**
+ * @brief Set a profile's name
+ *
+ * @param[in] profile The profile to set the name for
+ * @param[in] name    The new name for the profile
+ *
+ * @return True if the internal talloc_strdup succeeded
+ */
+bool tevent_req_profile_set_name(struct tevent_req_profile *profile,
+				 const char *name);
+
+/**
+ * @brief Set a profile's start event
+ *
+ * @param[in] profile        The profile to set the start data for
+ * @param[in] start_location The new start location
+ * @param[in] start_time     The new start time
+ *
+ * @return True if the internal talloc_strdup succeeded
+ */
+bool tevent_req_profile_set_start(struct tevent_req_profile *profile,
+				  const char *start_location,
+				  struct timeval start_time);
+
+/**
+ * @brief Set a profile's stop event
+ *
+ * @param[in] profile        The profile to set the stop data for
+ * @param[in] stop_location  The new stop location
+ * @param[in] stop_time      The new stop time
+ *
+ * @return True if the internal talloc_strdup succeeded
+ */
+bool tevent_req_profile_set_stop(struct tevent_req_profile *profile,
+				 const char *stop_location,
+				 struct timeval stop_time);
+
+/**
+ * @brief Set a profile's exit status
+ *
+ * @param[in] profile    The profile to set the exit status for
+ * @param[in] pid        The process where this profile was taken
+ * @param[in] state      The status the profile's tevent_req finished with
+ * @param[in] user_error The user error of the profile's tevent_req
+ */
+void tevent_req_profile_set_status(struct tevent_req_profile *profile,
+				   pid_t pid,
+				   enum tevent_req_state state,
+				   uint64_t user_error);
+
+/**
+ * @brief Add a subprofile to a profile
+ *
+ * @param[in] parent_profile The profile to be modified
+ * @param[in] sub_profile The subreqs profile profile to be added
+ *
+ * "subreq" is talloc_move'ed into "parent_profile", so the talloc
+ * ownership of "sub_profile" changes
+ */
+
+void tevent_req_profile_append_sub(struct tevent_req_profile *parent_profile,
+				   struct tevent_req_profile **sub_profile);
+
+/**
+ * @brief Create a tevent subrequest at a given time.
+ *
+ * The idea is that always the same syntax for tevent requests.
+ *
+ * @param[in]  mem_ctx  The talloc memory context to use.
+ *
+ * @param[in]  ev       The event handle to setup the request.
+ *
+ * @param[in]  wakeup_time The time to wakeup and execute the request.
+ *
+ * @return              The new subrequest, NULL on error.
+ *
+ * Example:
+ * @code
+ *   static void my_callback_wakeup_done(tevent_req *subreq)
+ *   {
+ *     struct tevent_req *req = tevent_req_callback_data(subreq,
+ *                              struct tevent_req);
+ *     bool ok;
+ *
+ *     ok = tevent_wakeup_recv(subreq);
+ *     TALLOC_FREE(subreq);
+ *     if (!ok) {
+ *         tevent_req_error(req, -1);
+ *         return;
+ *     }
+ *     ...
+ *   }
+ * @endcode
+ *
+ * @code
+ *   subreq = tevent_wakeup_send(mem_ctx, ev, wakeup_time);
+ *   if (tevent_req_nomem(subreq, req)) {
+ *     return false;
+ *   }
+ *   tevent_set_callback(subreq, my_callback_wakeup_done, req);
+ * @endcode
+ *
+ * @see tevent_wakeup_recv()
+ */
+struct tevent_req *tevent_wakeup_send(TALLOC_CTX *mem_ctx,
+				      struct tevent_context *ev,
+				      struct timeval wakeup_time);
+
+/**
+ * @brief Check if the wakeup has been correctly executed.
+ *
+ * This function needs to be called in the callback function set after calling
+ * tevent_wakeup_send().
+ *
+ * @param[in]  req      The tevent request to check.
+ *
+ * @return              True on success, false otherwise.
+ *
+ * @see tevent_wakeup_recv()
+ */
+bool tevent_wakeup_recv(struct tevent_req *req);
+
+/* @} */
+
+/**
+ * @defgroup tevent_helpers The tevent helper functions
+ * @ingroup tevent
+ *
+ * @todo description
+ *
+ * @{
+ */
+
+/**
+ * @brief Compare two timeval values.
+ *
+ * @param[in]  tv1      The first timeval value to compare.
+ *
+ * @param[in]  tv2      The second timeval value to compare.
+ *
+ * @return              0 if they are equal.
+ *                      1 if the first time is greater than the second.
+ *                      -1 if the first time is smaller than the second.
+ */
+int tevent_timeval_compare(const struct timeval *tv1,
+			   const struct timeval *tv2);
+
+/**
+ * @brief Get a zero timeval value.
+ *
+ * @return              A zero timeval value.
+ */
+struct timeval tevent_timeval_zero(void);
+
+/**
+ * @brief Get a timeval value for the current time.
+ *
+ * @return              A timeval value with the current time.
+ */
+struct timeval tevent_timeval_current(void);
+
+/**
+ * @brief Get a timeval structure with the given values.
+ *
+ * @param[in]  secs     The seconds to set.
+ *
+ * @param[in]  usecs    The microseconds to set.
+ *
+ * @return              A timeval structure with the given values.
+ */
+struct timeval tevent_timeval_set(uint32_t secs, uint32_t usecs);
+
+/**
+ * @brief Get the difference between two timeval values.
+ *
+ * @param[in]  tv1      The first timeval.
+ *
+ * @param[in]  tv2      The second timeval.
+ *
+ * @return              A timeval structure with the difference between the
+ *                      first and the second value.
+ */
+struct timeval tevent_timeval_until(const struct timeval *tv1,
+				    const struct timeval *tv2);
+
+/**
+ * @brief Check if a given timeval structure is zero.
+ *
+ * @param[in]  tv       The timeval to check if it is zero.
+ *
+ * @return              True if it is zero, false otherwise.
+ */
+bool tevent_timeval_is_zero(const struct timeval *tv);
+
+/**
+ * @brief Add the given amount of time to a timeval structure.
+ *
+ * @param[in]  tv        The timeval structure to add the time.
+ *
+ * @param[in]  secs      The seconds to add to the timeval.
+ *
+ * @param[in]  usecs     The microseconds to add to the timeval.
+ *
+ * @return               The timeval structure with the new time.
+ */
+struct timeval tevent_timeval_add(const struct timeval *tv, uint32_t secs,
+				  uint32_t usecs);
+
+/**
+ * @brief Get a timeval in the future with a specified offset from now.
+ *
+ * @param[in]  secs     The seconds of the offset from now.
+ *
+ * @param[in]  usecs    The microseconds of the offset from now.
+ *
+ * @return              A timeval with the given offset in the future.
+ */
+struct timeval tevent_timeval_current_ofs(uint32_t secs, uint32_t usecs);
+
+/**
+ *
+ * @brief A cached version of getpid()
+ *
+ * We use getpid() in a lot a performance critical situations
+ * in order to check if caches are still valid in the current process.
+ *
+ * Calling getpid() always add the cost of an additional syscall!
+ *
+ * When tevent is build with pthread support, we already make use
+ * of pthread_atfork(), so it's trivial to use it maintain a cache for getpid().
+ *
+ * @return              The pid of the current process.
+ */
+pid_t tevent_cached_getpid(void);
+
+/* @} */
+
+
+/**
+ * @defgroup tevent_queue The tevent queue functions
+ * @ingroup tevent
+ *
+ * A tevent_queue is used to queue up async requests that must be
+ * serialized. For example writing buffers into a socket must be
+ * serialized. Writing a large lump of data into a socket can require
+ * multiple write(2) or send(2) system calls. If more than one async
+ * request is outstanding to write large buffers into a socket, every
+ * request must individually be completed before the next one begins,
+ * even if multiple syscalls are required.
+ *
+ * Take a look at @ref tevent_queue_tutorial for more details.
+ * @{
+ */
+
+struct tevent_queue;
+struct tevent_queue_entry;
+
+/**
+ * @brief Associate a custom tag with the queue entry.
+ *
+ * This tag can be then retrieved with tevent_queue_entry_get_tag()
+ *
+ * @param[in]  qe   The queue entry.
+ *
+ * @param[in]  tag  Custom tag.
+ */
+void tevent_queue_entry_set_tag(struct tevent_queue_entry *qe, uint64_t tag);
+
+/**
+ * @brief Get custom queue entry tag.
+ */
+uint64_t tevent_queue_entry_get_tag(const struct tevent_queue_entry *qe);
+
+typedef void (*tevent_trace_queue_callback_t)(struct tevent_queue_entry *qe,
+					      enum tevent_event_trace_point,
+					      void *private_data);
+
+/**
+ * Register a callback to be called at certain trace points of queue.
+ *
+ * @param[in] ev             Event context
+ * @param[in] cb             Trace callback
+ * @param[in] private_data   Data to be passed to callback
+ *
+ * @note The callback will be called at trace points defined by
+ * tevent_event_trace_point. Call with NULL to reset.
+ */
+void tevent_set_trace_queue_callback(struct tevent_context *ev,
+				     tevent_trace_queue_callback_t cb,
+				     void *private_data);
+
+/**
+ * Retrieve the current trace callback of queue.
+ *
+ * @param[in] ev             Event context
+ * @param[out] cb            Registered trace callback
+ * @param[out] p_private_data  Registered data to be passed to callback
+ *
+ * @note This can be used to allow one component that wants to
+ * register a callback to respect the callback that another component
+ * has already registered.
+ */
+void tevent_get_trace_queue_callback(struct tevent_context *ev,
+				     tevent_trace_queue_callback_t *cb,
+				     void *p_private_data);
+
+#ifdef DOXYGEN
+/**
+ * @brief Create and start a tevent queue.
+ *
+ * @param[in]  mem_ctx  The talloc memory context to allocate the queue.
+ *
+ * @param[in]  name     The name to use to identify the queue.
+ *
+ * @return              An allocated tevent queue on success, NULL on error.
+ *
+ * @see tevent_queue_start()
+ * @see tevent_queue_stop()
+ */
+struct tevent_queue *tevent_queue_create(TALLOC_CTX *mem_ctx,
+					 const char *name);
+#else
+struct tevent_queue *_tevent_queue_create(TALLOC_CTX *mem_ctx,
+					  const char *name,
+					  const char *location);
+
+#define tevent_queue_create(_mem_ctx, _name) \
+	_tevent_queue_create((_mem_ctx), (_name), __location__)
+#endif
+
+/**
+ * @brief A callback trigger function run by the queue.
+ *
+ * @param[in]  req      The tevent request the trigger function is executed on.
+ *
+ * @param[in]  private_data The private data pointer specified by
+ *                          tevent_queue_add().
+ *
+ * @see tevent_queue_add()
+ * @see tevent_queue_add_entry()
+ * @see tevent_queue_add_optimize_empty()
+ */
+typedef void (*tevent_queue_trigger_fn_t)(struct tevent_req *req,
+					  void *private_data);
+
+/**
+ * @brief Add a tevent request to the queue.
+ *
+ * @param[in]  queue    The queue to add the request.
+ *
+ * @param[in]  ev       The event handle to use for the request.
+ *
+ * @param[in]  req      The tevent request to add to the queue.
+ *
+ * @param[in]  trigger  The function triggered by the queue when the request
+ *                      is called. Since tevent 0.9.14 it's possible to
+ *                      pass NULL, in order to just add a "blocker" to the
+ *                      queue.
+ *
+ * @param[in]  private_data The private data passed to the trigger function.
+ *
+ * @return              True if the request has been successfully added, false
+ *                      otherwise.
+ */
+bool tevent_queue_add(struct tevent_queue *queue,
+		      struct tevent_context *ev,
+		      struct tevent_req *req,
+		      tevent_queue_trigger_fn_t trigger,
+		      void *private_data);
+
+/**
+ * @brief Add a tevent request to the queue.
+ *
+ * The request can be removed from the queue by calling talloc_free()
+ * (or a similar function) on the returned queue entry. This
+ * is the only difference to tevent_queue_add().
+ *
+ * @param[in]  queue    The queue to add the request.
+ *
+ * @param[in]  ev       The event handle to use for the request.
+ *
+ * @param[in]  req      The tevent request to add to the queue.
+ *
+ * @param[in]  trigger  The function triggered by the queue when the request
+ *                      is called. Since tevent 0.9.14 it's possible to
+ *                      pass NULL, in order to just add a "blocker" to the
+ *                      queue.
+ *
+ * @param[in]  private_data The private data passed to the trigger function.
+ *
+ * @return              a pointer to the tevent_queue_entry if the request
+ *                      has been successfully added, NULL otherwise.
+ *
+ * @see tevent_queue_add()
+ * @see tevent_queue_add_optimize_empty()
+ */
+struct tevent_queue_entry *tevent_queue_add_entry(
+					struct tevent_queue *queue,
+					struct tevent_context *ev,
+					struct tevent_req *req,
+					tevent_queue_trigger_fn_t trigger,
+					void *private_data);
+
+/**
+ * @brief Add a tevent request to the queue using a possible optimization.
+ *
+ * This tries to optimize for the empty queue case and may calls
+ * the trigger function directly. This is the only difference compared
+ * to tevent_queue_add_entry().
+ *
+ * The caller needs to be prepared that the trigger function has
+ * already called tevent_req_notify_callback(), tevent_req_error(),
+ * tevent_req_done() or a similar function.
+ *
+ * The trigger function has no chance to see the returned
+ * queue_entry in the optimized case.
+ *
+ * The request can be removed from the queue by calling talloc_free()
+ * (or a similar function) on the returned queue entry.
+ *
+ * @param[in]  queue    The queue to add the request.
+ *
+ * @param[in]  ev       The event handle to use for the request.
+ *
+ * @param[in]  req      The tevent request to add to the queue.
+ *
+ * @param[in]  trigger  The function triggered by the queue when the request
+ *                      is called. Since tevent 0.9.14 it's possible to
+ *                      pass NULL, in order to just add a "blocker" to the
+ *                      queue.
+ *
+ * @param[in]  private_data The private data passed to the trigger function.
+ *
+ * @return              a pointer to the tevent_queue_entry if the request
+ *                      has been successfully added, NULL otherwise.
+ *
+ * @see tevent_queue_add()
+ * @see tevent_queue_add_entry()
+ */
+struct tevent_queue_entry *tevent_queue_add_optimize_empty(
+					struct tevent_queue *queue,
+					struct tevent_context *ev,
+					struct tevent_req *req,
+					tevent_queue_trigger_fn_t trigger,
+					void *private_data);
+
+/**
+ * @brief Untrigger an already triggered queue entry.
+ *
+ * If a trigger function detects that it needs to remain
+ * in the queue, it needs to call tevent_queue_stop()
+ * followed by tevent_queue_entry_untrigger().
+ *
+ * @note In order to call tevent_queue_entry_untrigger()
+ * the queue must be already stopped and the given queue_entry
+ * must be the first one in the queue! Otherwise it calls abort().
+ *
+ * @note You can't use this together with tevent_queue_add_optimize_empty()
+ * because the trigger function don't have access to the quene entry
+ * in the case of an empty queue.
+ *
+ * @param[in]  queue_entry The queue entry to rearm.
+ *
+ * @see tevent_queue_add_entry()
+ * @see tevent_queue_stop()
+ */
+void tevent_queue_entry_untrigger(struct tevent_queue_entry *entry);
+
+/**
+ * @brief Start a tevent queue.
+ *
+ * The queue is started by default.
+ *
+ * @param[in]  queue    The queue to start.
+ */
+void tevent_queue_start(struct tevent_queue *queue);
+
+/**
+ * @brief Stop a tevent queue.
+ *
+ * The queue is started by default.
+ *
+ * @param[in]  queue    The queue to stop.
+ */
+void tevent_queue_stop(struct tevent_queue *queue);
+
+/**
+ * @brief Get the length of the queue.
+ *
+ * @param[in]  queue    The queue to get the length from.
+ *
+ * @return              The number of elements.
+ */
+size_t tevent_queue_length(struct tevent_queue *queue);
+
+/**
+ * @brief Is the tevent queue running.
+ *
+ * The queue is started by default.
+ *
+ * @param[in]  queue    The queue.
+ *
+ * @return              Whether the queue is running or not..
+ */
+bool tevent_queue_running(struct tevent_queue *queue);
+
+/**
+ * @brief Create a tevent subrequest that waits in a tevent_queue
+ *
+ * The idea is that always the same syntax for tevent requests.
+ *
+ * @param[in]  mem_ctx  The talloc memory context to use.
+ *
+ * @param[in]  ev       The event handle to setup the request.
+ *
+ * @param[in]  queue    The queue to wait in.
+ *
+ * @return              The new subrequest, NULL on error.
+ *
+ * @see tevent_queue_wait_recv()
+ */
+struct tevent_req *tevent_queue_wait_send(TALLOC_CTX *mem_ctx,
+					  struct tevent_context *ev,
+					  struct tevent_queue *queue);
+
+/**
+ * @brief Check if we no longer need to wait in the queue.
+ *
+ * This function needs to be called in the callback function set after calling
+ * tevent_queue_wait_send().
+ *
+ * @param[in]  req      The tevent request to check.
+ *
+ * @return              True on success, false otherwise.
+ *
+ * @see tevent_queue_wait_send()
+ */
+bool tevent_queue_wait_recv(struct tevent_req *req);
+
+typedef int (*tevent_nesting_hook)(struct tevent_context *ev,
+				   void *private_data,
+				   uint32_t level,
+				   bool begin,
+				   void *stack_ptr,
+				   const char *location);
+
+/**
+ * @brief Create a tevent_thread_proxy for message passing between threads.
+ *
+ * The tevent_context must have been allocated on the NULL
+ * talloc context, and talloc_disable_null_tracking() must
+ * have been called.
+ *
+ * @param[in]  dest_ev_ctx      The tevent_context to receive events.
+ *
+ * @return              An allocated tevent_thread_proxy, NULL on error.
+ *                      If tevent was compiled without PTHREAD support
+ *                      NULL is always returned and errno set to ENOSYS.
+ *
+ * @see tevent_thread_proxy_schedule()
+ */
+struct tevent_thread_proxy *tevent_thread_proxy_create(
+                struct tevent_context *dest_ev_ctx);
+
+/**
+ * @brief Schedule an immediate event on an event context from another thread.
+ *
+ * Causes dest_ev_ctx, being run by another thread, to receive an
+ * immediate event calling the handler with the *pp_private parameter.
+ *
+ * *pp_im must be a pointer to an immediate event talloced on a context owned
+ * by the calling thread, or the NULL context. Ownership will
+ * be transferred to the tevent_thread_proxy and *pp_im will be returned as NULL.
+ *
+ * *pp_private_data must be a talloced area of memory with no destructors.
+ * Ownership of this memory will be transferred to the tevent library and
+ * *pp_private_data will be set to NULL on successful completion of
+ * the call. Set pp_private to NULL if no parameter transfer
+ * needed (a pure callback). This is an asynchronous request, caller
+ * does not wait for callback to be completed before returning.
+ *
+ * @param[in]  tp               The tevent_thread_proxy to use.
+ *
+ * @param[in]  pp_im            Pointer to immediate event pointer.
+ *
+ * @param[in]  handler          The function that will be called.
+ *
+ * @param[in]  pp_private_data  The talloced memory to transfer.
+ *
+ * @see tevent_thread_proxy_create()
+ */
+void tevent_thread_proxy_schedule(struct tevent_thread_proxy *tp,
+				  struct tevent_immediate **pp_im,
+				  tevent_immediate_handler_t handler,
+				  void *pp_private_data);
+
+/*
+ * @brief Create a context for threaded activation of immediates
+ *
+ * A tevent_treaded_context provides a link into an event
+ * context. Using tevent_threaded_schedule_immediate, it is possible
+ * to activate an immediate event from within a thread.
+ *
+ * It is the duty of the caller of tevent_threaded_context_create() to
+ * keep the event context around longer than any
+ * tevent_threaded_context. tevent will abort if ev is talloc_free'ed
+ * with an active tevent_threaded_context.
+ *
+ * If tevent is build without pthread support, this always returns
+ * NULL with errno=ENOSYS.
+ *
+ * @param[in]  mem_ctx  The talloc memory context to use.
+ * @param[in]  ev       The event context to link this to.
+ * @return              The threaded context, or NULL with errno set.
+ *
+ * @see tevent_threaded_schedule_immediate()
+ *
+ * @note Available as of tevent 0.9.30
+ */
+struct tevent_threaded_context *tevent_threaded_context_create(
+	TALLOC_CTX *mem_ctx, struct tevent_context *ev);
+
+#ifdef DOXYGEN
+/*
+ * @brief Activate an immediate from a thread
+ *
+ * Activate an immediate from within a thread.
+ *
+ * This routine does not watch out for talloc hierarchies. This means
+ * that it is highly recommended to create the tevent_immediate in the
+ * thread owning tctx, allocate a threaded job description for the
+ * thread, hand over both pointers to a helper thread and not touch it
+ * in the main thread at all anymore.
+ *
+ * tevent_threaded_schedule_immediate is intended as a job completion
+ * indicator for simple threaded helpers.
+ *
+ * Please be aware that tevent_threaded_schedule_immediate is very
+ * picky about its arguments: An immediate may not already be
+ * activated and the handler must exist. With
+ * tevent_threaded_schedule_immediate memory ownership is transferred
+ * to the main thread holding the tevent context behind tctx, the
+ * helper thread can't access it anymore.
+ *
+ * @param[in]  tctx     The threaded context to go through
+ * @param[in]  im       The immediate event to activate
+ * @param[in]  handler  The immediate handler to call in the main thread
+ * @param[in]  private_data Pointer for the immediate handler
+ *
+ * @see tevent_threaded_context_create()
+ *
+ * @note Available as of tevent 0.9.30
+ */
+void tevent_threaded_schedule_immediate(struct tevent_threaded_context *tctx,
+					struct tevent_immediate *im,
+					tevent_immediate_handler_t handler,
+					void *private_data);
+#else
+void _tevent_threaded_schedule_immediate(struct tevent_threaded_context *tctx,
+					 struct tevent_immediate *im,
+					 tevent_immediate_handler_t handler,
+					 void *private_data,
+					 const char *handler_name,
+					 const char *location);
+#define tevent_threaded_schedule_immediate(tctx, im, handler, private_data) \
+	_tevent_threaded_schedule_immediate(tctx, im, handler, private_data, \
+				   #handler, __location__);
+#endif
+
+#ifdef TEVENT_DEPRECATED
+#ifndef _DEPRECATED_
+#if __has_attribute(deprecated) || (__GNUC__ >= 3)
+#define _DEPRECATED_ __attribute__ ((deprecated))
+#else
+#define _DEPRECATED_
+#endif
+#endif
+void tevent_loop_allow_nesting(struct tevent_context *ev) _DEPRECATED_;
+void tevent_loop_set_nesting_hook(struct tevent_context *ev,
+				  tevent_nesting_hook hook,
+				  void *private_data) _DEPRECATED_;
+int _tevent_loop_until(struct tevent_context *ev,
+		       bool (*finished)(void *private_data),
+		       void *private_data,
+		       const char *location) _DEPRECATED_;
+#define tevent_loop_until(ev, finished, private_data) \
+	_tevent_loop_until(ev, finished, private_data, __location__)
+#endif
+
+int tevent_re_initialise(struct tevent_context *ev);
+
+/* @} */
+
+/**
+ * @defgroup tevent_ops The tevent operation functions
+ * @ingroup tevent
+ *
+ * The following structure and registration functions are exclusively
+ * needed for people writing and pluggin a different event engine.
+ * There is nothing useful for normal tevent user in here.
+ * @{
+ */
+
+struct tevent_ops {
+	/* context init */
+	int (*context_init)(struct tevent_context *ev);
+
+	/* fd_event functions */
+	struct tevent_fd *(*add_fd)(struct tevent_context *ev,
+				    TALLOC_CTX *mem_ctx,
+				    int fd, uint16_t flags,
+				    tevent_fd_handler_t handler,
+				    void *private_data,
+				    const char *handler_name,
+				    const char *location);
+	void (*set_fd_close_fn)(struct tevent_fd *fde,
+				tevent_fd_close_fn_t close_fn);
+	uint16_t (*get_fd_flags)(struct tevent_fd *fde);
+	void (*set_fd_flags)(struct tevent_fd *fde, uint16_t flags);
+
+	/* timed_event functions */
+	struct tevent_timer *(*add_timer)(struct tevent_context *ev,
+					  TALLOC_CTX *mem_ctx,
+					  struct timeval next_event,
+					  tevent_timer_handler_t handler,
+					  void *private_data,
+					  const char *handler_name,
+					  const char *location);
+
+	/* immediate event functions */
+	void (*schedule_immediate)(struct tevent_immediate *im,
+				   struct tevent_context *ev,
+				   tevent_immediate_handler_t handler,
+				   void *private_data,
+				   const char *handler_name,
+				   const char *location);
+
+	/* signal functions */
+	struct tevent_signal *(*add_signal)(struct tevent_context *ev,
+					    TALLOC_CTX *mem_ctx,
+					    int signum, int sa_flags,
+					    tevent_signal_handler_t handler,
+					    void *private_data,
+					    const char *handler_name,
+					    const char *location);
+
+	/* loop functions */
+	int (*loop_once)(struct tevent_context *ev, const char *location);
+	int (*loop_wait)(struct tevent_context *ev, const char *location);
+};
+
+bool tevent_register_backend(const char *name, const struct tevent_ops *ops);
+
+/* @} */
+
+#ifdef TEVENT_DEPRECATED
+/**
+ * @defgroup tevent_wrapper_ops The tevent wrapper operation functions
+ * @ingroup tevent
+ *
+ * The following structure and registration functions are exclusively
+ * needed for people writing wrapper functions for event handlers
+ * e.g. wrappers can be used for debugging/profiling or impersonation.
+ *
+ * There is nothing useful for normal tevent user in here.
+ *
+ * @note That the close_fn() on tevent_fd is *NOT* wrapped!
+ *
+ * @see tevent_context_wrapper_create
+ * @see tevent_fd_set_auto_close
+ * @{
+ */
+
+struct tevent_wrapper_ops {
+	const char *name;
+
+	bool (*before_use)(struct tevent_context *wrap_ev,
+			   void *private_state,
+			   struct tevent_context *main_ev,
+			   const char *location);
+	void (*after_use)(struct tevent_context *wrap_ev,
+			  void *private_state,
+			  struct tevent_context *main_ev,
+			  const char *location);
+
+	void (*before_fd_handler)(struct tevent_context *wrap_ev,
+				  void *private_state,
+				  struct tevent_context *main_ev,
+				  struct tevent_fd *fde,
+				  uint16_t flags,
+				  const char *handler_name,
+				  const char *location);
+	void (*after_fd_handler)(struct tevent_context *wrap_ev,
+				 void *private_state,
+				 struct tevent_context *main_ev,
+				 struct tevent_fd *fde,
+				 uint16_t flags,
+				 const char *handler_name,
+				 const char *location);
+
+	void (*before_timer_handler)(struct tevent_context *wrap_ev,
+				     void *private_state,
+				     struct tevent_context *main_ev,
+				     struct tevent_timer *te,
+				     struct timeval requested_time,
+				     struct timeval trigger_time,
+				     const char *handler_name,
+				     const char *location);
+	void (*after_timer_handler)(struct tevent_context *wrap_ev,
+				    void *private_state,
+				    struct tevent_context *main_ev,
+				    struct tevent_timer *te,
+				    struct timeval requested_time,
+				    struct timeval trigger_time,
+				    const char *handler_name,
+				    const char *location);
+
+	void (*before_immediate_handler)(struct tevent_context *wrap_ev,
+					 void *private_state,
+					 struct tevent_context *main_ev,
+					 struct tevent_immediate *im,
+					 const char *handler_name,
+					 const char *location);
+	void (*after_immediate_handler)(struct tevent_context *wrap_ev,
+					void *private_state,
+					struct tevent_context *main_ev,
+					struct tevent_immediate *im,
+					const char *handler_name,
+					const char *location);
+
+	void (*before_signal_handler)(struct tevent_context *wrap_ev,
+				      void *private_state,
+				      struct tevent_context *main_ev,
+				      struct tevent_signal *se,
+				      int signum,
+				      int count,
+				      void *siginfo,
+				      const char *handler_name,
+				      const char *location);
+	void (*after_signal_handler)(struct tevent_context *wrap_ev,
+				     void *private_state,
+				     struct tevent_context *main_ev,
+				     struct tevent_signal *se,
+				     int signum,
+				     int count,
+				     void *siginfo,
+				     const char *handler_name,
+				     const char *location);
+};
+
+#ifdef DOXYGEN
+/**
+ * @brief Create a wrapper tevent_context.
+ *
+ * @param[in]  main_ev        The main event context to work on.
+ *
+ * @param[in]  mem_ctx        The talloc memory context to use.
+ *
+ * @param[in]  ops            The tevent_wrapper_ops function table.
+ *
+ * @param[out] private_state  The private state use by the wrapper functions.
+ *
+ * @param[in]  private_type   The talloc type of the private_state.
+ *
+ * @return                    The wrapper event context, NULL on error.
+ *
+ * @note Available as of tevent 0.9.37
+ * @note Deprecated as of tevent 0.9.38
+ */
+struct tevent_context *tevent_context_wrapper_create(struct tevent_context *main_ev,
+						TALLOC_CTX *mem_ctx,
+						const struct tevent_wrapper_ops *ops,
+						void **private_state,
+						const char *private_type);
+#else
+struct tevent_context *_tevent_context_wrapper_create(struct tevent_context *main_ev,
+						TALLOC_CTX *mem_ctx,
+						const struct tevent_wrapper_ops *ops,
+						void *pstate,
+						size_t psize,
+						const char *type,
+						const char *location) _DEPRECATED_;
+#define tevent_context_wrapper_create(main_ev, mem_ctx, ops, state, type) \
+	_tevent_context_wrapper_create(main_ev, mem_ctx, ops, \
+				       state, sizeof(type), #type, __location__)
+#endif
+
+/**
+ * @brief Check if the event context is a wrapper event context.
+ *
+ * @param[in]  ev       The event context to work on.
+ *
+ * @return              Is a wrapper (true), otherwise (false).
+ *
+ * @see tevent_context_wrapper_create()
+ *
+ * @note Available as of tevent 0.9.37
+ * @note Deprecated as of tevent 0.9.38
+ */
+bool tevent_context_is_wrapper(struct tevent_context *ev) _DEPRECATED_;
+
+#ifdef DOXYGEN
+/**
+ * @brief Prepare the environment of a (wrapper) event context.
+ *
+ * A caller might call this before passing a wrapper event context
+ * to a tevent_req based *_send() function.
+ *
+ * The wrapper event context might do something like impersonation.
+ *
+ * tevent_context_push_use() must always be used in combination
+ * with tevent_context_pop_use().
+ *
+ * There is a global stack of currently active/busy wrapper event contexts.
+ * Each wrapper can only appear once on that global stack!
+ * The stack size is limited to 32 elements, which should be enough
+ * for all useful scenarios.
+ *
+ * In addition to an explicit tevent_context_push_use() also
+ * the invocation of an immediate, timer or fd handler implicitly
+ * pushes the wrapper on the stack.
+ *
+ * Therefore there are some strict constraints for the usage of
+ * tevent_context_push_use():
+ * - It must not be called from within an event handler
+ *   that already acts on the wrapper.
+ * - tevent_context_pop_use() must be called before
+ *   leaving the code block that called tevent_context_push_use().
+ * - The caller is responsible ensure the correct stack ordering
+ * - Any violation of these constraints results in calling
+ *   the abort handler of the given tevent context.
+ *
+ * Calling tevent_context_push_use() on a raw event context
+ * still consumes an element on the stack, but it's otherwise
+ * a no-op.
+ *
+ * If tevent_context_push_use() returns false, it means
+ * that the wrapper's before_use() hook returned this failure,
+ * in that case you must not call tevent_context_pop_use() as
+ * the wrapper is not pushed onto the stack.
+ *
+ * @param[in]  ev       The event context to work on.
+ *
+ * @return              Success (true) or failure (false).
+ *
+ * @note This is only needed if wrapper event contexts are in use.
+ *
+ * @see tevent_context_pop_use
+ *
+ * @note Available as of tevent 0.9.37
+ * @note Deprecated as of tevent 0.9.38
+ */
+bool tevent_context_push_use(struct tevent_context *ev);
+#else
+bool _tevent_context_push_use(struct tevent_context *ev,
+				const char *location) _DEPRECATED_;
+#define tevent_context_push_use(ev) \
+	_tevent_context_push_use(ev, __location__)
+#endif
+
+#ifdef DOXYGEN
+/**
+ * @brief Release the environment of a (wrapper) event context.
+ *
+ * The wrapper event context might undo something like impersonation.
+ *
+ * This must be called after a succesful tevent_context_push_use().
+ * Any ordering violation results in calling
+ * the abort handler of the given tevent context.
+ *
+ * This basically calls the wrapper's after_use() hook.
+ *
+ * @param[in]  ev       The event context to work on.
+ *
+ * @note This is only needed if wrapper event contexts are in use.
+ *
+ * @see tevent_context_push_use
+ *
+ * @note Available as of tevent 0.9.37
+ * @note Deprecated as of tevent 0.9.38
+ */
+void tevent_context_pop_use(struct tevent_context *ev);
+#else
+void _tevent_context_pop_use(struct tevent_context *ev,
+			       const char *location) _DEPRECATED_;
+#define tevent_context_pop_use(ev) \
+	_tevent_context_pop_use(ev, __location__)
+#endif
+
+/**
+ * @brief Check is the two context pointers belong to the same low level loop
+ *
+ * With the introduction of wrapper contexts it's not trivial
+ * to check if two context pointers belong to the same low level
+ * event loop. Some code may need to know this in order
+ * to make some caching decisions.
+ *
+ * @param[in]  ev1       The first event context.
+ * @param[in]  ev2       The second event context.
+ *
+ * @return true if both contexts belong to the same (still existing) context
+ * loop, false otherwise.
+ *
+ * @see tevent_context_wrapper_create
+ *
+ * @note Available as of tevent 0.9.37
+ * @note Deprecated as of tevent 0.9.38
+ */
+bool tevent_context_same_loop(struct tevent_context *ev1,
+			      struct tevent_context *ev2) _DEPRECATED_;
+
+/* @} */
+#endif /* TEVENT_DEPRECATED */
+
+/**
+ * @defgroup tevent_compat The tevent compatibility functions
+ * @ingroup tevent
+ *
+ * The following definitions are usueful only for compatibility with the
+ * implementation originally developed within the samba4 code and will be
+ * soon removed. Please NEVER use in new code.
+ *
+ * @todo Ignore it?
+ *
+ * @{
+ */
+
+#ifdef TEVENT_COMPAT_DEFINES
+
+#define event_context	tevent_context
+#define event_ops	tevent_ops
+#define fd_event	tevent_fd
+#define timed_event	tevent_timer
+#define signal_event	tevent_signal
+
+#define event_fd_handler_t	tevent_fd_handler_t
+#define event_timed_handler_t	tevent_timer_handler_t
+#define event_signal_handler_t	tevent_signal_handler_t
+
+#define event_context_init(mem_ctx) \
+	tevent_context_init(mem_ctx)
+
+#define event_context_init_byname(mem_ctx, name) \
+	tevent_context_init_byname(mem_ctx, name)
+
+#define event_backend_list(mem_ctx) \
+	tevent_backend_list(mem_ctx)
+
+#define event_set_default_backend(backend) \
+	tevent_set_default_backend(backend)
+
+#define event_add_fd(ev, mem_ctx, fd, flags, handler, private_data) \
+	tevent_add_fd(ev, mem_ctx, fd, flags, handler, private_data)
+
+#define event_add_timed(ev, mem_ctx, next_event, handler, private_data) \
+	tevent_add_timer(ev, mem_ctx, next_event, handler, private_data)
+
+#define event_add_signal(ev, mem_ctx, signum, sa_flags, handler, private_data) \
+	tevent_add_signal(ev, mem_ctx, signum, sa_flags, handler, private_data)
+
+#define event_loop_once(ev) \
+	tevent_loop_once(ev)
+
+#define event_loop_wait(ev) \
+	tevent_loop_wait(ev)
+
+#define event_get_fd_flags(fde) \
+	tevent_fd_get_flags(fde)
+
+#define event_set_fd_flags(fde, flags) \
+	tevent_fd_set_flags(fde, flags)
+
+#define EVENT_FD_READ		TEVENT_FD_READ
+#define EVENT_FD_WRITE		TEVENT_FD_WRITE
+
+#define EVENT_FD_WRITEABLE(fde) \
+	TEVENT_FD_WRITEABLE(fde)
+
+#define EVENT_FD_READABLE(fde) \
+	TEVENT_FD_READABLE(fde)
+
+#define EVENT_FD_NOT_WRITEABLE(fde) \
+	TEVENT_FD_NOT_WRITEABLE(fde)
+
+#define EVENT_FD_NOT_READABLE(fde) \
+	TEVENT_FD_NOT_READABLE(fde)
+
+#define ev_debug_level		tevent_debug_level
+
+#define EV_DEBUG_FATAL		TEVENT_DEBUG_FATAL
+#define EV_DEBUG_ERROR		TEVENT_DEBUG_ERROR
+#define EV_DEBUG_WARNING	TEVENT_DEBUG_WARNING
+#define EV_DEBUG_TRACE		TEVENT_DEBUG_TRACE
+
+#define ev_set_debug(ev, debug, context) \
+	tevent_set_debug(ev, debug, context)
+
+#define ev_set_debug_stderr(_ev) tevent_set_debug_stderr(ev)
+
+#endif /* TEVENT_COMPAT_DEFINES */
+
+/* @} */
+
+#endif /* __TEVENT_H__ */
diff --git a/lib/tevent/tevent.pc.in b/lib/tevent/tevent.pc.in
new file mode 100644
index 0000000..eb0e564
--- /dev/null
+++ b/lib/tevent/tevent.pc.in
@@ -0,0 +1,12 @@
+prefix=@prefix@
+exec_prefix=@exec_prefix@
+libdir=@libdir@
+includedir=@includedir@
+
+Name: tevent
+Description: An event system library
+Version: @PACKAGE_VERSION@
+Requires: talloc
+Libs: @LIB_RPATH@ -L${libdir} -ltevent
+Cflags: -I${includedir}
+URL: http://samba.org/
diff --git a/lib/tevent/tevent.py b/lib/tevent/tevent.py
new file mode 100644
index 0000000..14aa27d
--- /dev/null
+++ b/lib/tevent/tevent.py
@@ -0,0 +1,28 @@
+#
+#   Python integration for tevent
+#
+#   Copyright (C) Jelmer Vernooij 2011
+#
+#     ** NOTE! The following LGPL license applies to the tevent
+#     ** library. This does NOT imply that all of Samba is released
+#     ** under the LGPL
+#
+#   This library is free software; you can redistribute it and/or
+#   modify it under the terms of the GNU Lesser General Public
+#   License as published by the Free Software Foundation; either
+#   version 3 of the License, or (at your option) any later version.
+#
+#   This library is distributed in the hope that it will be useful,
+#   but WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#   Lesser General Public License for more details.
+#
+#   You should have received a copy of the GNU Lesser General Public
+#   License along with this library; if not, see <http://www.gnu.org/licenses/>.
+
+from _tevent import (
+    __version__,
+    backend_list,
+    Context,
+    Signal,
+)
diff --git a/lib/tevent/tevent_debug.c b/lib/tevent/tevent_debug.c
new file mode 100644
index 0000000..6b8f2d5
--- /dev/null
+++ b/lib/tevent/tevent_debug.c
@@ -0,0 +1,294 @@
+/*
+   Unix SMB/CIFS implementation.
+
+   Copyright (C) Andrew Tridgell 2005
+   Copyright (C) Jelmer Vernooij 2005
+
+     ** NOTE! The following LGPL license applies to the tevent
+     ** library. This does NOT imply that all of Samba is released
+     ** under the LGPL
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 3 of the License, or (at your option) any later version.
+
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with this library; if not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "replace.h"
+#include "tevent.h"
+#include "tevent_internal.h"
+
+/********************************************************************
+ * Debug wrapper functions, modeled (with lot's of code copied as is)
+ * after the ev debug wrapper functions
+ ********************************************************************/
+
+/*
+  this allows the user to choose their own debug function
+*/
+int tevent_set_debug(struct tevent_context *ev,
+		     void (*debug)(void *context,
+				   enum tevent_debug_level level,
+				   const char *fmt,
+				   va_list ap) PRINTF_ATTRIBUTE(3,0),
+		     void *context)
+{
+	if (ev->wrapper.glue != NULL) {
+		ev = tevent_wrapper_main_ev(ev);
+		tevent_abort(ev, "tevent_set_debug() on wrapper");
+		errno = EINVAL;
+		return -1;
+	}
+
+	ev->debug_ops.debug = debug;
+	ev->debug_ops.context = context;
+	return 0;
+}
+
+/*
+  debug function for ev_set_debug_stderr
+*/
+static void tevent_debug_stderr(void *private_data,
+				enum tevent_debug_level level,
+				const char *fmt,
+				va_list ap) PRINTF_ATTRIBUTE(3,0);
+static void tevent_debug_stderr(void *private_data,
+				enum tevent_debug_level level,
+				const char *fmt, va_list ap)
+{
+	if (level <= TEVENT_DEBUG_WARNING) {
+		vfprintf(stderr, fmt, ap);
+	}
+}
+
+/*
+  convenience function to setup debug messages on stderr
+  messages of level TEVENT_DEBUG_WARNING and higher are printed
+*/
+int tevent_set_debug_stderr(struct tevent_context *ev)
+{
+	return tevent_set_debug(ev, tevent_debug_stderr, ev);
+}
+
+/*
+ * log a message
+ *
+ * The default debug action is to ignore debugging messages.
+ * This is the most appropriate action for a library.
+ * Applications using the library must decide where to
+ * redirect debugging messages
+*/
+void tevent_debug(struct tevent_context *ev, enum tevent_debug_level level,
+		  const char *fmt, ...)
+{
+	va_list ap;
+	if (!ev) {
+		return;
+	}
+	if (ev->wrapper.glue != NULL) {
+		ev = tevent_wrapper_main_ev(ev);
+	}
+	if (ev->debug_ops.debug == NULL) {
+		return;
+	}
+	va_start(ap, fmt);
+	ev->debug_ops.debug(ev->debug_ops.context, level, fmt, ap);
+	va_end(ap);
+}
+
+void tevent_set_trace_callback(struct tevent_context *ev,
+			       tevent_trace_callback_t cb,
+			       void *private_data)
+{
+	if (ev->wrapper.glue != NULL) {
+		ev = tevent_wrapper_main_ev(ev);
+		tevent_abort(ev, "tevent_set_trace_callback() on wrapper");
+		return;
+	}
+
+	ev->tracing.point.callback = cb;
+	ev->tracing.point.private_data = private_data;
+}
+
+void tevent_get_trace_callback(struct tevent_context *ev,
+			       tevent_trace_callback_t *cb,
+			       void *private_data)
+{
+	*cb = ev->tracing.point.callback;
+	*(void**)private_data = ev->tracing.point.private_data;
+}
+
+void tevent_trace_point_callback(struct tevent_context *ev,
+				 enum tevent_trace_point tp)
+{
+	if (ev->tracing.point.callback != NULL) {
+		ev->tracing.point.callback(tp, ev->tracing.point.private_data);
+	}
+}
+
+void tevent_set_trace_fd_callback(struct tevent_context *ev,
+				  tevent_trace_fd_callback_t cb,
+				  void *private_data)
+{
+	if (ev->wrapper.glue != NULL) {
+		ev = tevent_wrapper_main_ev(ev);
+		tevent_abort(ev, "tevent_set_trace_fd_callback() on wrapper");
+		return;
+	}
+
+	ev->tracing.fde.callback = cb;
+	ev->tracing.fde.private_data = private_data;
+}
+
+void tevent_get_trace_fd_callback(struct tevent_context *ev,
+				  tevent_trace_fd_callback_t *cb,
+				  void *p_private_data)
+{
+	*cb = ev->tracing.fde.callback;
+	*(void**)p_private_data = ev->tracing.fde.private_data;
+}
+
+void tevent_trace_fd_callback(struct tevent_context *ev,
+			      struct tevent_fd *fde,
+			      enum tevent_event_trace_point tp)
+{
+	if (ev->tracing.fde.callback != NULL) {
+		ev->tracing.fde.callback(fde, tp, ev->tracing.fde.private_data);
+	}
+}
+
+void tevent_set_trace_signal_callback(struct tevent_context *ev,
+				      tevent_trace_signal_callback_t cb,
+				      void *private_data)
+{
+	if (ev->wrapper.glue != NULL) {
+		ev = tevent_wrapper_main_ev(ev);
+		tevent_abort(ev, "tevent_set_trace_signal_callback() "
+			     "on wrapper");
+		return;
+	}
+
+	ev->tracing.se.callback = cb;
+	ev->tracing.se.private_data = private_data;
+}
+
+void tevent_get_trace_signal_callback(struct tevent_context *ev,
+				      tevent_trace_signal_callback_t *cb,
+				      void *p_private_data)
+{
+	*cb = ev->tracing.se.callback;
+	*(void**)p_private_data = ev->tracing.se.private_data;
+}
+
+void tevent_trace_signal_callback(struct tevent_context *ev,
+				  struct tevent_signal *se,
+				  enum tevent_event_trace_point tp)
+{
+	if (ev->tracing.se.callback != NULL) {
+		ev->tracing.se.callback(se, tp, ev->tracing.se.private_data);
+	}
+}
+
+void tevent_set_trace_timer_callback(struct tevent_context *ev,
+				     tevent_trace_timer_callback_t cb,
+				     void *private_data)
+{
+	if (ev->wrapper.glue != NULL) {
+		ev = tevent_wrapper_main_ev(ev);
+		tevent_abort(ev, "tevent_set_trace_timer_callback() "
+			     "on wrapper");
+		return;
+	}
+
+	ev->tracing.te.callback = cb;
+	ev->tracing.te.private_data = private_data;
+}
+
+void tevent_get_trace_timer_callback(struct tevent_context *ev,
+				     tevent_trace_timer_callback_t *cb,
+				     void *p_private_data)
+{
+	*cb = ev->tracing.te.callback;
+	*(void**)p_private_data = ev->tracing.te.private_data;
+}
+
+void tevent_trace_timer_callback(struct tevent_context *ev,
+				 struct tevent_timer *te,
+				 enum tevent_event_trace_point tp)
+{
+	if (ev->tracing.te.callback != NULL) {
+		ev->tracing.te.callback(te, tp, ev->tracing.te.private_data);
+	}
+}
+
+void tevent_set_trace_immediate_callback(struct tevent_context *ev,
+					 tevent_trace_immediate_callback_t cb,
+					 void *private_data)
+{
+	if (ev->wrapper.glue != NULL) {
+		ev = tevent_wrapper_main_ev(ev);
+		tevent_abort(ev, "tevent_set_trace_immediate_callback() "
+		             "on wrapper");
+		return;
+	}
+
+	ev->tracing.im.callback = cb;
+	ev->tracing.im.private_data = private_data;
+}
+
+void tevent_get_trace_immediate_callback(struct tevent_context *ev,
+					 tevent_trace_immediate_callback_t *cb,
+					 void *p_private_data)
+{
+	*cb = ev->tracing.im.callback;
+	*(void**)p_private_data = ev->tracing.im.private_data;
+}
+
+void tevent_trace_immediate_callback(struct tevent_context *ev,
+				     struct tevent_immediate *im,
+				     enum tevent_event_trace_point tp)
+{
+	if (ev->tracing.im.callback != NULL) {
+		ev->tracing.im.callback(im, tp, ev->tracing.im.private_data);
+	}
+}
+
+void tevent_set_trace_queue_callback(struct tevent_context *ev,
+				     tevent_trace_queue_callback_t cb,
+				     void *private_data)
+{
+	if (ev->wrapper.glue != NULL) {
+		ev = tevent_wrapper_main_ev(ev);
+		tevent_abort(ev, "tevent_set_trace_queue_callback() "
+		             "on wrapper");
+		return;
+	}
+
+	ev->tracing.qe.callback = cb;
+	ev->tracing.qe.private_data = private_data;
+}
+
+void tevent_get_trace_queue_callback(struct tevent_context *ev,
+				     tevent_trace_queue_callback_t *cb,
+				     void *p_private_data)
+{
+	*cb = ev->tracing.qe.callback;
+	*(void**)p_private_data = ev->tracing.qe.private_data;
+}
+
+void tevent_trace_queue_callback(struct tevent_context *ev,
+				 struct tevent_queue_entry *qe,
+				 enum tevent_event_trace_point tp)
+{
+	if (ev->tracing.qe.callback != NULL) {
+		ev->tracing.qe.callback(qe, tp, ev->tracing.qe.private_data);
+	}
+}
diff --git a/lib/tevent/tevent_epoll.c b/lib/tevent/tevent_epoll.c
new file mode 100644
index 0000000..1f1f47b
--- /dev/null
+++ b/lib/tevent/tevent_epoll.c
@@ -0,0 +1,957 @@
+/* 
+   Unix SMB/CIFS implementation.
+
+   main select loop and event handling - epoll implementation
+
+   Copyright (C) Andrew Tridgell	2003-2005
+   Copyright (C) Stefan Metzmacher	2005-2013
+   Copyright (C) Jeremy Allison		2013
+
+     ** NOTE! The following LGPL license applies to the tevent
+     ** library. This does NOT imply that all of Samba is released
+     ** under the LGPL
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 3 of the License, or (at your option) any later version.
+
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with this library; if not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "replace.h"
+#include "system/filesys.h"
+#include "system/select.h"
+#include "tevent.h"
+#include "tevent_internal.h"
+#include "tevent_util.h"
+
+struct epoll_event_context {
+	/* a pointer back to the generic event_context */
+	struct tevent_context *ev;
+
+	/* when using epoll this is the handle from epoll_create */
+	int epoll_fd;
+
+	pid_t pid;
+
+	bool panic_force_replay;
+	bool *panic_state;
+	bool (*panic_fallback)(struct tevent_context *ev, bool replay);
+};
+
+#define EPOLL_ADDITIONAL_FD_FLAG_HAS_EVENT	(1<<0)
+#define EPOLL_ADDITIONAL_FD_FLAG_REPORT_ERROR	(1<<1)
+#define EPOLL_ADDITIONAL_FD_FLAG_GOT_ERROR	(1<<2)
+#define EPOLL_ADDITIONAL_FD_FLAG_HAS_MPX	(1<<3)
+
+#ifdef TEST_PANIC_FALLBACK
+
+static int epoll_create_panic_fallback(struct epoll_event_context *epoll_ev,
+				       int size)
+{
+	if (epoll_ev->panic_fallback == NULL) {
+		return epoll_create(size);
+	}
+
+	/* 50% of the time, fail... */
+	if ((random() % 2) == 0) {
+		errno = EINVAL;
+		return -1;
+	}
+
+	return epoll_create(size);
+}
+
+static int epoll_ctl_panic_fallback(struct epoll_event_context *epoll_ev,
+				    int epfd, int op, int fd,
+				    struct epoll_event *event)
+{
+	if (epoll_ev->panic_fallback == NULL) {
+		return epoll_ctl(epfd, op, fd, event);
+	}
+
+	/* 50% of the time, fail... */
+	if ((random() % 2) == 0) {
+		errno = EINVAL;
+		return -1;
+	}
+
+	return epoll_ctl(epfd, op, fd, event);
+}
+
+static int epoll_wait_panic_fallback(struct epoll_event_context *epoll_ev,
+				     int epfd,
+				     struct epoll_event *events,
+				     int maxevents,
+				     int timeout)
+{
+	if (epoll_ev->panic_fallback == NULL) {
+		return epoll_wait(epfd, events, maxevents, timeout);
+	}
+
+	/* 50% of the time, fail... */
+	if ((random() % 2) == 0) {
+		errno = EINVAL;
+		return -1;
+	}
+
+	return epoll_wait(epfd, events, maxevents, timeout);
+}
+
+#define epoll_create(_size) \
+	epoll_create_panic_fallback(epoll_ev, _size)
+#define epoll_ctl(_epfd, _op, _fd, _event) \
+	epoll_ctl_panic_fallback(epoll_ev,_epfd, _op, _fd, _event)
+#define epoll_wait(_epfd, _events, _maxevents, _timeout) \
+	epoll_wait_panic_fallback(epoll_ev, _epfd, _events, _maxevents, _timeout)
+#endif
+
+/*
+  called to set the panic fallback function.
+*/
+_PRIVATE_ void tevent_epoll_set_panic_fallback(struct tevent_context *ev,
+				bool (*panic_fallback)(struct tevent_context *ev,
+						       bool replay))
+{
+	struct epoll_event_context *epoll_ev =
+		talloc_get_type_abort(ev->additional_data,
+		struct epoll_event_context);
+
+	epoll_ev->panic_fallback = panic_fallback;
+}
+
+/*
+  called when a epoll call fails
+*/
+static void epoll_panic(struct epoll_event_context *epoll_ev,
+			const char *reason, bool replay)
+{
+	struct tevent_context *ev = epoll_ev->ev;
+	bool (*panic_fallback)(struct tevent_context *ev, bool replay);
+
+	panic_fallback = epoll_ev->panic_fallback;
+
+	if (epoll_ev->panic_state != NULL) {
+		*epoll_ev->panic_state = true;
+	}
+
+	if (epoll_ev->panic_force_replay) {
+		replay = true;
+	}
+
+	TALLOC_FREE(ev->additional_data);
+
+	if (panic_fallback == NULL) {
+		tevent_debug(ev, TEVENT_DEBUG_FATAL,
+			"%s (%s) replay[%u] - calling abort()\n",
+			reason, strerror(errno), (unsigned)replay);
+		abort();
+	}
+
+	tevent_debug(ev, TEVENT_DEBUG_ERROR,
+		     "%s (%s) replay[%u] - calling panic_fallback\n",
+		     reason, strerror(errno), (unsigned)replay);
+
+	if (!panic_fallback(ev, replay)) {
+		/* Fallback failed. */
+		tevent_debug(ev, TEVENT_DEBUG_FATAL,
+			"%s (%s) replay[%u] - calling abort()\n",
+			reason, strerror(errno), (unsigned)replay);
+		abort();
+	}
+}
+
+/*
+  map from TEVENT_FD_* to EPOLLIN/EPOLLOUT
+*/
+static uint32_t epoll_map_flags(uint16_t flags)
+{
+	uint32_t ret = 0;
+	if (flags & TEVENT_FD_READ) ret |= (EPOLLIN | EPOLLERR | EPOLLHUP);
+	if (flags & TEVENT_FD_WRITE) ret |= (EPOLLOUT | EPOLLERR | EPOLLHUP);
+	return ret;
+}
+
+/*
+ free the epoll fd
+*/
+static int epoll_ctx_destructor(struct epoll_event_context *epoll_ev)
+{
+	close(epoll_ev->epoll_fd);
+	epoll_ev->epoll_fd = -1;
+	return 0;
+}
+
+/*
+ init the epoll fd
+*/
+static int epoll_init_ctx(struct epoll_event_context *epoll_ev)
+{
+	epoll_ev->epoll_fd = epoll_create(64);
+	if (epoll_ev->epoll_fd == -1) {
+		tevent_debug(epoll_ev->ev, TEVENT_DEBUG_FATAL,
+			     "Failed to create epoll handle.\n");
+		return -1;
+	}
+
+	if (!ev_set_close_on_exec(epoll_ev->epoll_fd)) {
+		tevent_debug(epoll_ev->ev, TEVENT_DEBUG_WARNING,
+			     "Failed to set close-on-exec, file descriptor may be leaked to children.\n");
+	}
+
+	epoll_ev->pid = tevent_cached_getpid();
+	talloc_set_destructor(epoll_ev, epoll_ctx_destructor);
+
+	return 0;
+}
+
+static void epoll_update_event(struct epoll_event_context *epoll_ev, struct tevent_fd *fde);
+
+/*
+  reopen the epoll handle when our pid changes
+  see http://junkcode.samba.org/ftp/unpacked/junkcode/epoll_fork.c for an
+  demonstration of why this is needed
+ */
+static void epoll_check_reopen(struct epoll_event_context *epoll_ev)
+{
+	struct tevent_fd *fde;
+	bool *caller_panic_state = epoll_ev->panic_state;
+	bool panic_triggered = false;
+	pid_t pid = tevent_cached_getpid();
+
+	if (epoll_ev->pid == pid) {
+		return;
+	}
+
+	close(epoll_ev->epoll_fd);
+	epoll_ev->epoll_fd = epoll_create(64);
+	if (epoll_ev->epoll_fd == -1) {
+		epoll_panic(epoll_ev, "epoll_create() failed", false);
+		return;
+	}
+
+	if (!ev_set_close_on_exec(epoll_ev->epoll_fd)) {
+		tevent_debug(epoll_ev->ev, TEVENT_DEBUG_WARNING,
+			     "Failed to set close-on-exec, file descriptor may be leaked to children.\n");
+	}
+
+	epoll_ev->pid = pid;
+	epoll_ev->panic_state = &panic_triggered;
+	for (fde=epoll_ev->ev->fd_events;fde;fde=fde->next) {
+		fde->additional_flags &= ~EPOLL_ADDITIONAL_FD_FLAG_HAS_EVENT;
+		epoll_update_event(epoll_ev, fde);
+
+		if (panic_triggered) {
+			if (caller_panic_state != NULL) {
+				*caller_panic_state = true;
+			}
+			return;
+		}
+	}
+	epoll_ev->panic_state = NULL;
+}
+
+/*
+ epoll cannot add the same file descriptor twice, once
+ with read, once with write which is allowed by the
+ tevent backend. Multiplex the existing fde, flag it
+ as such so we can search for the correct fde on
+ event triggering.
+*/
+
+static int epoll_add_multiplex_fd(struct epoll_event_context *epoll_ev,
+				  struct tevent_fd *add_fde)
+{
+	struct epoll_event event;
+	struct tevent_fd *mpx_fde;
+	int ret;
+
+	/* Find the existing fde that caused the EEXIST error. */
+	for (mpx_fde = epoll_ev->ev->fd_events; mpx_fde; mpx_fde = mpx_fde->next) {
+		if (mpx_fde->fd != add_fde->fd) {
+			continue;
+		}
+
+		if (mpx_fde == add_fde) {
+			continue;
+		}
+
+		break;
+	}
+	if (mpx_fde == NULL) {
+		tevent_debug(epoll_ev->ev, TEVENT_DEBUG_FATAL,
+			     "can't find multiplex fde for fd[%d]",
+			     add_fde->fd);
+		return -1;
+	}
+
+	if (mpx_fde->additional_flags & EPOLL_ADDITIONAL_FD_FLAG_HAS_MPX) {
+		/* Logic error. Can't have more than 2 multiplexed fde's. */
+		tevent_debug(epoll_ev->ev, TEVENT_DEBUG_FATAL,
+			     "multiplex fde for fd[%d] is already multiplexed\n",
+			     mpx_fde->fd);
+		return -1;
+	}
+
+	/*
+	 * The multiplex fde must have the same fd, and also
+	 * already have an epoll event attached.
+	 */
+	if (!(mpx_fde->additional_flags & EPOLL_ADDITIONAL_FD_FLAG_HAS_EVENT)) {
+		/* Logic error. Can't have more than 2 multiplexed fde's. */
+		tevent_debug(epoll_ev->ev, TEVENT_DEBUG_FATAL,
+			     "multiplex fde for fd[%d] has no event\n",
+			     mpx_fde->fd);
+		return -1;
+	}
+
+	/* Modify the mpx_fde to add in the new flags. */
+	ZERO_STRUCT(event);
+	event.events = epoll_map_flags(mpx_fde->flags);
+	event.events |= epoll_map_flags(add_fde->flags);
+	event.data.ptr = mpx_fde;
+	ret = epoll_ctl(epoll_ev->epoll_fd, EPOLL_CTL_MOD, mpx_fde->fd, &event);
+	if (ret != 0 && errno == EBADF) {
+		tevent_debug(epoll_ev->ev, TEVENT_DEBUG_ERROR,
+			     "EPOLL_CTL_MOD EBADF for "
+			     "add_fde[%p] mpx_fde[%p] fd[%d] - disabling\n",
+			     add_fde, mpx_fde, add_fde->fd);
+		DLIST_REMOVE(epoll_ev->ev->fd_events, mpx_fde);
+		mpx_fde->wrapper = NULL;
+		mpx_fde->event_ctx = NULL;
+		DLIST_REMOVE(epoll_ev->ev->fd_events, add_fde);
+		add_fde->wrapper = NULL;
+		add_fde->event_ctx = NULL;
+		return 0;
+	} else if (ret != 0) {
+		return ret;
+	}
+
+	/*
+	 * Make each fde->additional_data pointers point at each other
+	 * so we can look them up from each other. They are now paired.
+	 */
+	mpx_fde->additional_data = (struct tevent_fd *)add_fde;
+	add_fde->additional_data = (struct tevent_fd *)mpx_fde;
+
+	/* Now flag both fde's as being multiplexed. */
+	mpx_fde->additional_flags |= EPOLL_ADDITIONAL_FD_FLAG_HAS_MPX;
+	add_fde->additional_flags |= EPOLL_ADDITIONAL_FD_FLAG_HAS_MPX;
+
+	/* we need to keep the GOT_ERROR flag */
+	if (mpx_fde->additional_flags & EPOLL_ADDITIONAL_FD_FLAG_GOT_ERROR) {
+		add_fde->additional_flags |= EPOLL_ADDITIONAL_FD_FLAG_GOT_ERROR;
+	}
+
+	return 0;
+}
+
+/*
+ add the epoll event to the given fd_event
+*/
+static void epoll_add_event(struct epoll_event_context *epoll_ev, struct tevent_fd *fde)
+{
+	struct epoll_event event;
+	int ret;
+	struct tevent_fd *mpx_fde = NULL;
+
+	fde->additional_flags &= ~EPOLL_ADDITIONAL_FD_FLAG_HAS_EVENT;
+	fde->additional_flags &= ~EPOLL_ADDITIONAL_FD_FLAG_REPORT_ERROR;
+
+	if (fde->additional_flags & EPOLL_ADDITIONAL_FD_FLAG_HAS_MPX) {
+		/*
+		 * This is a multiplexed fde, we need to include both
+		 * flags in the modified event.
+		 */
+		mpx_fde = talloc_get_type_abort(fde->additional_data,
+						struct tevent_fd);
+
+		mpx_fde->additional_flags &= ~EPOLL_ADDITIONAL_FD_FLAG_HAS_EVENT;
+		mpx_fde->additional_flags &= ~EPOLL_ADDITIONAL_FD_FLAG_REPORT_ERROR;
+	}
+
+	ZERO_STRUCT(event);
+	event.events = epoll_map_flags(fde->flags);
+	if (mpx_fde != NULL) {
+		event.events |= epoll_map_flags(mpx_fde->flags);
+	}
+	event.data.ptr = fde;
+	ret = epoll_ctl(epoll_ev->epoll_fd, EPOLL_CTL_ADD, fde->fd, &event);
+	if (ret != 0 && errno == EBADF) {
+		tevent_debug(epoll_ev->ev, TEVENT_DEBUG_ERROR,
+			     "EPOLL_CTL_ADD EBADF for "
+			     "fde[%p] mpx_fde[%p] fd[%d] - disabling\n",
+			     fde, mpx_fde, fde->fd);
+		DLIST_REMOVE(epoll_ev->ev->fd_events, fde);
+		fde->wrapper = NULL;
+		fde->event_ctx = NULL;
+		if (mpx_fde != NULL) {
+			DLIST_REMOVE(epoll_ev->ev->fd_events, mpx_fde);
+			mpx_fde->wrapper = NULL;
+			mpx_fde->event_ctx = NULL;
+		}
+		return;
+	} else if (ret != 0 && errno == EEXIST && mpx_fde == NULL) {
+		ret = epoll_add_multiplex_fd(epoll_ev, fde);
+		if (ret != 0) {
+			epoll_panic(epoll_ev, "epoll_add_multiplex_fd failed",
+				    false);
+			return;
+		}
+	} else if (ret != 0) {
+		epoll_panic(epoll_ev, "EPOLL_CTL_ADD failed", false);
+		return;
+	}
+
+	fde->additional_flags |= EPOLL_ADDITIONAL_FD_FLAG_HAS_EVENT;
+	/* only if we want to read we want to tell the event handler about errors */
+	if (fde->flags & TEVENT_FD_READ) {
+		fde->additional_flags |= EPOLL_ADDITIONAL_FD_FLAG_REPORT_ERROR;
+	}
+
+	if (mpx_fde == NULL) {
+		return;
+	}
+
+	mpx_fde->additional_flags |= EPOLL_ADDITIONAL_FD_FLAG_HAS_EVENT;
+	/* only if we want to read we want to tell the event handler about errors */
+	if (mpx_fde->flags & TEVENT_FD_READ) {
+		mpx_fde->additional_flags |= EPOLL_ADDITIONAL_FD_FLAG_REPORT_ERROR;
+	}
+}
+
+/*
+ delete the epoll event for given fd_event
+*/
+static void epoll_del_event(struct epoll_event_context *epoll_ev, struct tevent_fd *fde)
+{
+	struct epoll_event event;
+	int ret;
+	struct tevent_fd *mpx_fde = NULL;
+
+	fde->additional_flags &= ~EPOLL_ADDITIONAL_FD_FLAG_HAS_EVENT;
+	fde->additional_flags &= ~EPOLL_ADDITIONAL_FD_FLAG_REPORT_ERROR;
+
+	if (fde->additional_flags & EPOLL_ADDITIONAL_FD_FLAG_HAS_MPX) {
+		/*
+		 * This is a multiplexed fde, we need to modify both events.
+		 */
+		mpx_fde = talloc_get_type_abort(fde->additional_data,
+						struct tevent_fd);
+
+		mpx_fde->additional_flags &= ~EPOLL_ADDITIONAL_FD_FLAG_HAS_EVENT;
+		mpx_fde->additional_flags &= ~EPOLL_ADDITIONAL_FD_FLAG_REPORT_ERROR;
+	}
+
+	ZERO_STRUCT(event);
+	ret = epoll_ctl(epoll_ev->epoll_fd, EPOLL_CTL_DEL, fde->fd, &event);
+	if (ret != 0 && errno == ENOENT) {
+		/*
+		 * This can happen after a epoll_check_reopen
+		 * within epoll_event_fd_destructor.
+		 */
+		tevent_debug(epoll_ev->ev, TEVENT_DEBUG_TRACE,
+			     "EPOLL_CTL_DEL ignoring ENOENT for fd[%d]\n",
+			     fde->fd);
+		return;
+	} else if (ret != 0 && errno == EBADF) {
+		tevent_debug(epoll_ev->ev, TEVENT_DEBUG_WARNING,
+			     "EPOLL_CTL_DEL EBADF for "
+			     "fde[%p] mpx_fde[%p] fd[%d] - disabling\n",
+			     fde, mpx_fde, fde->fd);
+		DLIST_REMOVE(epoll_ev->ev->fd_events, fde);
+		fde->wrapper = NULL;
+		fde->event_ctx = NULL;
+		if (mpx_fde != NULL) {
+			DLIST_REMOVE(epoll_ev->ev->fd_events, mpx_fde);
+			mpx_fde->wrapper = NULL;
+			mpx_fde->event_ctx = NULL;
+		}
+		return;
+	} else if (ret != 0) {
+		epoll_panic(epoll_ev, "EPOLL_CTL_DEL failed", false);
+		return;
+	}
+}
+
+/*
+ change the epoll event to the given fd_event
+*/
+static void epoll_mod_event(struct epoll_event_context *epoll_ev, struct tevent_fd *fde)
+{
+	struct tevent_fd *mpx_fde = NULL;
+	struct epoll_event event;
+	int ret;
+
+	fde->additional_flags &= ~EPOLL_ADDITIONAL_FD_FLAG_HAS_EVENT;
+	fde->additional_flags &= ~EPOLL_ADDITIONAL_FD_FLAG_REPORT_ERROR;
+
+	if (fde->additional_flags & EPOLL_ADDITIONAL_FD_FLAG_HAS_MPX) {
+		/*
+		 * This is a multiplexed fde, we need to include both
+		 * flags in the modified event.
+		 */
+		mpx_fde = talloc_get_type_abort(fde->additional_data,
+						struct tevent_fd);
+
+		mpx_fde->additional_flags &= ~EPOLL_ADDITIONAL_FD_FLAG_HAS_EVENT;
+		mpx_fde->additional_flags &= ~EPOLL_ADDITIONAL_FD_FLAG_REPORT_ERROR;
+	}
+
+	ZERO_STRUCT(event);
+	event.events = epoll_map_flags(fde->flags);
+	if (mpx_fde != NULL) {
+		event.events |= epoll_map_flags(mpx_fde->flags);
+	}
+	event.data.ptr = fde;
+	ret = epoll_ctl(epoll_ev->epoll_fd, EPOLL_CTL_MOD, fde->fd, &event);
+	if (ret != 0 && errno == EBADF) {
+		tevent_debug(epoll_ev->ev, TEVENT_DEBUG_ERROR,
+			     "EPOLL_CTL_MOD EBADF for "
+			     "fde[%p] mpx_fde[%p] fd[%d] - disabling\n",
+			     fde, mpx_fde, fde->fd);
+		DLIST_REMOVE(epoll_ev->ev->fd_events, fde);
+		fde->wrapper = NULL;
+		fde->event_ctx = NULL;
+		if (mpx_fde != NULL) {
+			DLIST_REMOVE(epoll_ev->ev->fd_events, mpx_fde);
+			mpx_fde->wrapper = NULL;
+			mpx_fde->event_ctx = NULL;
+		}
+		return;
+	} else if (ret != 0) {
+		epoll_panic(epoll_ev, "EPOLL_CTL_MOD failed", false);
+		return;
+	}
+
+	fde->additional_flags |= EPOLL_ADDITIONAL_FD_FLAG_HAS_EVENT;
+	/* only if we want to read we want to tell the event handler about errors */
+	if (fde->flags & TEVENT_FD_READ) {
+		fde->additional_flags |= EPOLL_ADDITIONAL_FD_FLAG_REPORT_ERROR;
+	}
+
+	if (mpx_fde == NULL) {
+		return;
+	}
+
+	mpx_fde->additional_flags |= EPOLL_ADDITIONAL_FD_FLAG_HAS_EVENT;
+	/* only if we want to read we want to tell the event handler about errors */
+	if (mpx_fde->flags & TEVENT_FD_READ) {
+		mpx_fde->additional_flags |= EPOLL_ADDITIONAL_FD_FLAG_REPORT_ERROR;
+	}
+}
+
+static void epoll_update_event(struct epoll_event_context *epoll_ev, struct tevent_fd *fde)
+{
+	bool got_error = (fde->additional_flags & EPOLL_ADDITIONAL_FD_FLAG_GOT_ERROR);
+	bool want_read = (fde->flags & TEVENT_FD_READ);
+	bool want_write= (fde->flags & TEVENT_FD_WRITE);
+	struct tevent_fd *mpx_fde = NULL;
+
+	if (fde->additional_flags & EPOLL_ADDITIONAL_FD_FLAG_HAS_MPX) {
+		/*
+		 * work out what the multiplexed fde wants.
+		 */
+		mpx_fde = talloc_get_type_abort(fde->additional_data,
+						struct tevent_fd);
+
+		if (mpx_fde->flags & TEVENT_FD_READ) {
+			want_read = true;
+		}
+
+		if (mpx_fde->flags & TEVENT_FD_WRITE) {
+			want_write = true;
+		}
+	}
+
+	/* there's already an event */
+	if (fde->additional_flags & EPOLL_ADDITIONAL_FD_FLAG_HAS_EVENT) {
+		if (want_read || (want_write && !got_error)) {
+			epoll_mod_event(epoll_ev, fde);
+			return;
+		}
+		/* 
+		 * if we want to match the select behavior, we need to remove the epoll_event
+		 * when the caller isn't interested in events.
+		 *
+		 * this is because epoll reports EPOLLERR and EPOLLHUP, even without asking for them
+		 */
+		epoll_del_event(epoll_ev, fde);
+		return;
+	}
+
+	/* there's no epoll_event attached to the fde */
+	if (want_read || (want_write && !got_error)) {
+		epoll_add_event(epoll_ev, fde);
+		return;
+	}
+}
+
+/*
+  Cope with epoll returning EPOLLHUP|EPOLLERR on an event.
+  Return true if there's nothing else to do, false if
+  this event needs further handling.
+*/
+static bool epoll_handle_hup_or_err(struct epoll_event_context *epoll_ev,
+				struct tevent_fd *fde)
+{
+	if (fde == NULL) {
+		/* Nothing to do if no event. */
+		return true;
+	}
+
+	fde->additional_flags |= EPOLL_ADDITIONAL_FD_FLAG_GOT_ERROR;
+	/*
+	 * if we only wait for TEVENT_FD_WRITE, we should not tell the
+	 * event handler about it, and remove the epoll_event,
+	 * as we only report errors when waiting for read events,
+	 * to match the select() behavior
+	 */
+	if (!(fde->additional_flags & EPOLL_ADDITIONAL_FD_FLAG_REPORT_ERROR)) {
+		/*
+		 * Do the same as the poll backend and
+		 * remove the writeable flag.
+		 */
+		fde->flags &= ~TEVENT_FD_WRITE;
+		return true;
+	}
+	/* This has TEVENT_FD_READ set, we're not finished. */
+	return false;
+}
+
+/*
+  event loop handling using epoll
+*/
+static int epoll_event_loop(struct epoll_event_context *epoll_ev, struct timeval *tvalp)
+{
+	int ret, i;
+#define MAXEVENTS 1
+	struct epoll_event events[MAXEVENTS];
+	int timeout = -1;
+	int wait_errno;
+
+	if (tvalp) {
+		/* it's better to trigger timed events a bit later than too early */
+		timeout = ((tvalp->tv_usec+999) / 1000) + (tvalp->tv_sec*1000);
+	}
+
+	if (epoll_ev->ev->signal_events &&
+	    tevent_common_check_signal(epoll_ev->ev)) {
+		return 0;
+	}
+
+	tevent_trace_point_callback(epoll_ev->ev, TEVENT_TRACE_BEFORE_WAIT);
+	ret = epoll_wait(epoll_ev->epoll_fd, events, MAXEVENTS, timeout);
+	wait_errno = errno;
+	tevent_trace_point_callback(epoll_ev->ev, TEVENT_TRACE_AFTER_WAIT);
+
+	if (ret == -1 && wait_errno == EINTR && epoll_ev->ev->signal_events) {
+		if (tevent_common_check_signal(epoll_ev->ev)) {
+			return 0;
+		}
+	}
+
+	if (ret == -1 && wait_errno != EINTR) {
+		epoll_panic(epoll_ev, "epoll_wait() failed", true);
+		return -1;
+	}
+
+	if (ret == 0 && tvalp) {
+		/* we don't care about a possible delay here */
+		tevent_common_loop_timer_delay(epoll_ev->ev);
+		return 0;
+	}
+
+	for (i=0;i<ret;i++) {
+		struct tevent_fd *fde = talloc_get_type(events[i].data.ptr,
+						       struct tevent_fd);
+		uint16_t flags = 0;
+		struct tevent_fd *mpx_fde = NULL;
+
+		if (fde == NULL) {
+			epoll_panic(epoll_ev, "epoll_wait() gave bad data", true);
+			return -1;
+		}
+		if (fde->additional_flags & EPOLL_ADDITIONAL_FD_FLAG_HAS_MPX) {
+			/*
+			 * Save off the multiplexed event in case we need
+			 * to use it to call the handler function.
+			 */
+			mpx_fde = talloc_get_type_abort(fde->additional_data,
+							struct tevent_fd);
+		}
+		if (events[i].events & (EPOLLHUP|EPOLLERR)) {
+			bool handled_fde = epoll_handle_hup_or_err(epoll_ev, fde);
+			bool handled_mpx = epoll_handle_hup_or_err(epoll_ev, mpx_fde);
+
+			if (handled_fde && handled_mpx) {
+				epoll_update_event(epoll_ev, fde);
+				continue;
+			}
+
+			if (!handled_mpx) {
+				/*
+				 * If the mpx event was the one that needs
+				 * further handling, it's the TEVENT_FD_READ
+				 * event so switch over and call that handler.
+				 */
+				fde = mpx_fde;
+				mpx_fde = NULL;
+			}
+			flags |= TEVENT_FD_READ;
+		}
+		if (events[i].events & EPOLLIN) flags |= TEVENT_FD_READ;
+		if (events[i].events & EPOLLOUT) flags |= TEVENT_FD_WRITE;
+
+		if (flags & TEVENT_FD_WRITE) {
+			if (fde->flags & TEVENT_FD_WRITE) {
+				mpx_fde = NULL;
+			}
+			if (mpx_fde && mpx_fde->flags & TEVENT_FD_WRITE) {
+				fde = mpx_fde;
+				mpx_fde = NULL;
+			}
+		}
+
+		if (mpx_fde) {
+			/* Ensure we got the right fde. */
+			if ((flags & fde->flags) == 0) {
+				fde = mpx_fde;
+				mpx_fde = NULL;
+			}
+		}
+
+		/*
+		 * make sure we only pass the flags
+		 * the handler is expecting.
+		 */
+		flags &= fde->flags;
+		if (flags) {
+			return tevent_common_invoke_fd_handler(fde, flags, NULL);
+		}
+	}
+
+	return 0;
+}
+
+/*
+  create a epoll_event_context structure.
+*/
+static int epoll_event_context_init(struct tevent_context *ev)
+{
+	int ret;
+	struct epoll_event_context *epoll_ev;
+
+	/*
+	 * We might be called during tevent_re_initialise()
+	 * which means we need to free our old additional_data.
+	 */
+	TALLOC_FREE(ev->additional_data);
+
+	epoll_ev = talloc_zero(ev, struct epoll_event_context);
+	if (!epoll_ev) return -1;
+	epoll_ev->ev = ev;
+	epoll_ev->epoll_fd = -1;
+
+	ret = epoll_init_ctx(epoll_ev);
+	if (ret != 0) {
+		talloc_free(epoll_ev);
+		return ret;
+	}
+
+	ev->additional_data = epoll_ev;
+	return 0;
+}
+
+/*
+  destroy an fd_event
+*/
+static int epoll_event_fd_destructor(struct tevent_fd *fde)
+{
+	struct tevent_context *ev = fde->event_ctx;
+	struct epoll_event_context *epoll_ev = NULL;
+	bool panic_triggered = false;
+	struct tevent_fd *mpx_fde = NULL;
+	int flags = fde->flags;
+
+	if (ev == NULL) {
+		return tevent_common_fd_destructor(fde);
+	}
+
+	epoll_ev = talloc_get_type_abort(ev->additional_data,
+					 struct epoll_event_context);
+
+	/*
+	 * we must remove the event from the list
+	 * otherwise a panic fallback handler may
+	 * reuse invalid memory
+	 */
+	DLIST_REMOVE(ev->fd_events, fde);
+
+	if (fde->additional_flags & EPOLL_ADDITIONAL_FD_FLAG_HAS_MPX) {
+		mpx_fde = talloc_get_type_abort(fde->additional_data,
+						struct tevent_fd);
+
+		fde->additional_flags &= ~EPOLL_ADDITIONAL_FD_FLAG_HAS_MPX;
+		mpx_fde->additional_flags &= ~EPOLL_ADDITIONAL_FD_FLAG_HAS_MPX;
+
+		fde->additional_data = NULL;
+		mpx_fde->additional_data = NULL;
+
+		fde->additional_flags &= ~EPOLL_ADDITIONAL_FD_FLAG_HAS_EVENT;
+	}
+
+	epoll_ev->panic_state = &panic_triggered;
+	epoll_check_reopen(epoll_ev);
+	if (panic_triggered) {
+		return tevent_common_fd_destructor(fde);
+	}
+
+	if (mpx_fde != NULL) {
+		epoll_update_event(epoll_ev, mpx_fde);
+		if (panic_triggered) {
+			return tevent_common_fd_destructor(fde);
+		}
+	}
+
+	fde->flags = 0;
+	epoll_update_event(epoll_ev, fde);
+	fde->flags = flags;
+	if (panic_triggered) {
+		return tevent_common_fd_destructor(fde);
+	}
+	epoll_ev->panic_state = NULL;
+
+	return tevent_common_fd_destructor(fde);
+}
+
+/*
+  add a fd based event
+  return NULL on failure (memory allocation error)
+*/
+static struct tevent_fd *epoll_event_add_fd(struct tevent_context *ev, TALLOC_CTX *mem_ctx,
+					    int fd, uint16_t flags,
+					    tevent_fd_handler_t handler,
+					    void *private_data,
+					    const char *handler_name,
+					    const char *location)
+{
+	struct epoll_event_context *epoll_ev =
+		talloc_get_type_abort(ev->additional_data,
+		struct epoll_event_context);
+	struct tevent_fd *fde;
+	bool panic_triggered = false;
+
+	fde = tevent_common_add_fd(ev, mem_ctx, fd, flags,
+				   handler, private_data,
+				   handler_name, location);
+	if (!fde) return NULL;
+
+	talloc_set_destructor(fde, epoll_event_fd_destructor);
+
+	epoll_ev->panic_state = &panic_triggered;
+	epoll_check_reopen(epoll_ev);
+	if (panic_triggered) {
+		return fde;
+	}
+	epoll_ev->panic_state = NULL;
+
+	epoll_update_event(epoll_ev, fde);
+
+	return fde;
+}
+
+/*
+  set the fd event flags
+*/
+static void epoll_event_set_fd_flags(struct tevent_fd *fde, uint16_t flags)
+{
+	struct tevent_context *ev;
+	struct epoll_event_context *epoll_ev;
+	bool panic_triggered = false;
+
+	if (fde->flags == flags) return;
+
+	ev = fde->event_ctx;
+	epoll_ev = talloc_get_type_abort(ev->additional_data,
+					 struct epoll_event_context);
+
+	fde->flags = flags;
+
+	epoll_ev->panic_state = &panic_triggered;
+	epoll_check_reopen(epoll_ev);
+	if (panic_triggered) {
+		return;
+	}
+	epoll_ev->panic_state = NULL;
+
+	epoll_update_event(epoll_ev, fde);
+}
+
+/*
+  do a single event loop using the events defined in ev
+*/
+static int epoll_event_loop_once(struct tevent_context *ev, const char *location)
+{
+	struct epoll_event_context *epoll_ev =
+		talloc_get_type_abort(ev->additional_data,
+		struct epoll_event_context);
+	struct timeval tval;
+	bool panic_triggered = false;
+
+	if (ev->signal_events &&
+	    tevent_common_check_signal(ev)) {
+		return 0;
+	}
+
+	if (ev->threaded_contexts != NULL) {
+		tevent_common_threaded_activate_immediate(ev);
+	}
+
+	if (ev->immediate_events &&
+	    tevent_common_loop_immediate(ev)) {
+		return 0;
+	}
+
+	tval = tevent_common_loop_timer_delay(ev);
+	if (tevent_timeval_is_zero(&tval)) {
+		return 0;
+	}
+
+	epoll_ev->panic_state = &panic_triggered;
+	epoll_ev->panic_force_replay = true;
+	epoll_check_reopen(epoll_ev);
+	if (panic_triggered) {
+		errno = EINVAL;
+		return -1;
+	}
+	epoll_ev->panic_force_replay = false;
+	epoll_ev->panic_state = NULL;
+
+	return epoll_event_loop(epoll_ev, &tval);
+}
+
+static const struct tevent_ops epoll_event_ops = {
+	.context_init		= epoll_event_context_init,
+	.add_fd			= epoll_event_add_fd,
+	.set_fd_close_fn	= tevent_common_fd_set_close_fn,
+	.get_fd_flags		= tevent_common_fd_get_flags,
+	.set_fd_flags		= epoll_event_set_fd_flags,
+	.add_timer		= tevent_common_add_timer_v2,
+	.schedule_immediate	= tevent_common_schedule_immediate,
+	.add_signal		= tevent_common_add_signal,
+	.loop_once		= epoll_event_loop_once,
+	.loop_wait		= tevent_common_loop_wait,
+};
+
+_PRIVATE_ bool tevent_epoll_init(void)
+{
+	return tevent_register_backend("epoll", &epoll_event_ops);
+}
diff --git a/lib/tevent/tevent_fd.c b/lib/tevent/tevent_fd.c
new file mode 100644
index 0000000..0e55cf1
--- /dev/null
+++ b/lib/tevent/tevent_fd.c
@@ -0,0 +1,183 @@
+/*
+   Unix SMB/CIFS implementation.
+
+   common events code for fd events
+
+   Copyright (C) Stefan Metzmacher 2009
+
+     ** NOTE! The following LGPL license applies to the tevent
+     ** library. This does NOT imply that all of Samba is released
+     ** under the LGPL
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 3 of the License, or (at your option) any later version.
+
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with this library; if not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "replace.h"
+#define TEVENT_DEPRECATED 1
+#include "tevent.h"
+#include "tevent_internal.h"
+#include "tevent_util.h"
+
+int tevent_common_fd_destructor(struct tevent_fd *fde)
+{
+	if (fde->destroyed) {
+		tevent_common_check_double_free(fde, "tevent_fd double free");
+		goto done;
+	}
+	fde->destroyed = true;
+
+	if (fde->event_ctx) {
+		tevent_trace_fd_callback(fde->event_ctx, fde, TEVENT_EVENT_TRACE_DETACH);
+		DLIST_REMOVE(fde->event_ctx->fd_events, fde);
+	}
+
+	if (fde->close_fn) {
+		fde->close_fn(fde->event_ctx, fde, fde->fd, fde->private_data);
+		fde->fd = -1;
+		fde->close_fn = NULL;
+	}
+
+	fde->event_ctx = NULL;
+done:
+	if (fde->busy) {
+		return -1;
+	}
+	fde->wrapper = NULL;
+
+	return 0;
+}
+
+struct tevent_fd *tevent_common_add_fd(struct tevent_context *ev, TALLOC_CTX *mem_ctx,
+				       int fd, uint16_t flags,
+				       tevent_fd_handler_t handler,
+				       void *private_data,
+				       const char *handler_name,
+				       const char *location)
+{
+	struct tevent_fd *fde;
+
+	/* tevent will crash later on select() if we save
+	 * a negative file descriptor. Better to fail here
+	 * so that consumers will be able to debug it
+	 */
+	if (fd < 0) return NULL;
+
+	fde = talloc(mem_ctx?mem_ctx:ev, struct tevent_fd);
+	if (!fde) return NULL;
+
+	*fde = (struct tevent_fd) {
+		.event_ctx	= ev,
+		.fd		= fd,
+		.flags		= flags,
+		.handler	= handler,
+		.private_data	= private_data,
+		.handler_name	= handler_name,
+		.location	= location,
+	};
+
+	tevent_trace_fd_callback(fde->event_ctx, fde, TEVENT_EVENT_TRACE_ATTACH);
+	DLIST_ADD(ev->fd_events, fde);
+
+	talloc_set_destructor(fde, tevent_common_fd_destructor);
+
+
+	return fde;
+}
+uint16_t tevent_common_fd_get_flags(struct tevent_fd *fde)
+{
+	return fde->flags;
+}
+
+void tevent_common_fd_set_flags(struct tevent_fd *fde, uint16_t flags)
+{
+	if (fde->flags == flags) return;
+	fde->flags = flags;
+}
+
+void tevent_common_fd_set_close_fn(struct tevent_fd *fde,
+				   tevent_fd_close_fn_t close_fn)
+{
+	fde->close_fn = close_fn;
+}
+
+int tevent_common_invoke_fd_handler(struct tevent_fd *fde, uint16_t flags,
+				    bool *removed)
+{
+	struct tevent_context *handler_ev = fde->event_ctx;
+
+	if (removed != NULL) {
+		*removed = false;
+	}
+
+	if (fde->event_ctx == NULL) {
+		return 0;
+	}
+
+	fde->busy = true;
+	if (fde->wrapper != NULL) {
+		handler_ev = fde->wrapper->wrap_ev;
+
+		tevent_wrapper_push_use_internal(handler_ev, fde->wrapper);
+		fde->wrapper->ops->before_fd_handler(
+					fde->wrapper->wrap_ev,
+					fde->wrapper->private_state,
+					fde->wrapper->main_ev,
+					fde,
+					flags,
+					fde->handler_name,
+					fde->location);
+	}
+	tevent_trace_fd_callback(fde->event_ctx, fde, TEVENT_EVENT_TRACE_BEFORE_HANDLER);
+	fde->handler(handler_ev, fde, flags, fde->private_data);
+	if (fde->wrapper != NULL) {
+		fde->wrapper->ops->after_fd_handler(
+					fde->wrapper->wrap_ev,
+					fde->wrapper->private_state,
+					fde->wrapper->main_ev,
+					fde,
+					flags,
+					fde->handler_name,
+					fde->location);
+		tevent_wrapper_pop_use_internal(handler_ev, fde->wrapper);
+	}
+	fde->busy = false;
+
+	if (fde->destroyed) {
+		talloc_set_destructor(fde, NULL);
+		TALLOC_FREE(fde);
+		if (removed != NULL) {
+			*removed = true;
+		}
+	}
+
+	return 0;
+}
+
+void tevent_fd_set_tag(struct tevent_fd *fde, uint64_t tag)
+{
+	if (fde == NULL) {
+		return;
+	}
+
+	fde->tag = tag;
+}
+
+uint64_t tevent_fd_get_tag(const struct tevent_fd *fde)
+{
+	if (fde == NULL) {
+		return 0;
+	}
+
+	return fde->tag;
+}
diff --git a/lib/tevent/tevent_immediate.c b/lib/tevent/tevent_immediate.c
new file mode 100644
index 0000000..eb607c4
--- /dev/null
+++ b/lib/tevent/tevent_immediate.c
@@ -0,0 +1,261 @@
+/*
+   Unix SMB/CIFS implementation.
+
+   common events code for immediate events
+
+   Copyright (C) Stefan Metzmacher 2009
+
+     ** NOTE! The following LGPL license applies to the tevent
+     ** library. This does NOT imply that all of Samba is released
+     ** under the LGPL
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 3 of the License, or (at your option) any later version.
+
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with this library; if not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "replace.h"
+#define TEVENT_DEPRECATED 1
+#include "tevent.h"
+#include "tevent_internal.h"
+#include "tevent_util.h"
+
+static void tevent_common_immediate_cancel(struct tevent_immediate *im)
+{
+	const char *create_location = im->create_location;
+	bool busy = im->busy;
+	uint64_t tag = im->tag;
+	struct tevent_context *detach_ev_ctx = NULL;
+
+	if (im->destroyed) {
+		tevent_abort(im->event_ctx, "tevent_immediate use after free");
+		return;
+	}
+
+	if (im->detach_ev_ctx != NULL) {
+		detach_ev_ctx = im->detach_ev_ctx;
+		im->detach_ev_ctx = NULL;
+		tevent_trace_immediate_callback(detach_ev_ctx,
+						im,
+						TEVENT_EVENT_TRACE_DETACH);
+		return;
+	}
+
+	if (!im->event_ctx) {
+		return;
+	}
+
+	if (im->handler_name != NULL) {
+		tevent_debug(im->event_ctx, TEVENT_DEBUG_TRACE,
+			     "Cancel immediate event %p \"%s\"\n",
+			     im, im->handler_name);
+	}
+
+	/* let the backend free im->additional_data */
+	if (im->cancel_fn) {
+		im->cancel_fn(im);
+	}
+
+	if (busy && im->handler_name == NULL) {
+		detach_ev_ctx = im->event_ctx;
+	} else {
+		tevent_trace_immediate_callback(im->event_ctx,
+						im,
+						TEVENT_EVENT_TRACE_DETACH);
+	}
+	DLIST_REMOVE(im->event_ctx->immediate_events, im);
+
+	*im = (struct tevent_immediate) {
+		.create_location	= create_location,
+		.busy			= busy,
+		.tag			= tag,
+		.detach_ev_ctx		= detach_ev_ctx,
+	};
+
+	if (!busy) {
+		talloc_set_destructor(im, NULL);
+	}
+}
+
+/*
+  destroy an immediate event
+*/
+static int tevent_common_immediate_destructor(struct tevent_immediate *im)
+{
+	if (im->destroyed) {
+		tevent_common_check_double_free(im,
+						"tevent_immediate double free");
+		goto done;
+	}
+
+	tevent_common_immediate_cancel(im);
+
+	im->destroyed = true;
+
+done:
+	if (im->busy) {
+		return -1;
+	}
+
+	return 0;
+}
+
+/*
+ * schedule an immediate event on
+ */
+void tevent_common_schedule_immediate(struct tevent_immediate *im,
+				      struct tevent_context *ev,
+				      tevent_immediate_handler_t handler,
+				      void *private_data,
+				      const char *handler_name,
+				      const char *location)
+{
+	const char *create_location = im->create_location;
+	bool busy = im->busy;
+	uint64_t tag = im->tag;
+	struct tevent_wrapper_glue *glue = im->wrapper;
+
+	tevent_common_immediate_cancel(im);
+
+	if (!handler) {
+		return;
+	}
+
+	*im = (struct tevent_immediate) {
+		.event_ctx		= ev,
+		.wrapper		= glue,
+		.handler		= handler,
+		.private_data		= private_data,
+		.handler_name		= handler_name,
+		.create_location	= create_location,
+		.schedule_location	= location,
+		.busy			= busy,
+		.tag			= tag,
+	};
+
+	tevent_trace_immediate_callback(im->event_ctx, im, TEVENT_EVENT_TRACE_ATTACH);
+	DLIST_ADD_END(ev->immediate_events, im);
+	talloc_set_destructor(im, tevent_common_immediate_destructor);
+
+	tevent_debug(ev, TEVENT_DEBUG_TRACE,
+		     "Schedule immediate event \"%s\": %p\n",
+		     handler_name, im);
+}
+
+int tevent_common_invoke_immediate_handler(struct tevent_immediate *im,
+					   bool *removed)
+{
+	struct tevent_context *handler_ev = im->event_ctx;
+	struct tevent_context *ev = im->event_ctx;
+	struct tevent_immediate cur = *im;
+
+	if (removed != NULL) {
+		*removed = false;
+	}
+
+	tevent_debug(ev, TEVENT_DEBUG_TRACE,
+		     "Run immediate event \"%s\": %p\n",
+		     im->handler_name, im);
+
+	/*
+	 * remember the handler and then clear the event
+	 * the handler might reschedule the event
+	 */
+
+	im->busy = true;
+	im->handler_name = NULL;
+	tevent_common_immediate_cancel(im);
+	if (cur.wrapper != NULL) {
+		handler_ev = cur.wrapper->wrap_ev;
+
+		tevent_wrapper_push_use_internal(handler_ev, cur.wrapper);
+		cur.wrapper->ops->before_immediate_handler(
+					cur.wrapper->wrap_ev,
+					cur.wrapper->private_state,
+					cur.wrapper->main_ev,
+					im,
+					cur.handler_name,
+					cur.schedule_location);
+	}
+	tevent_trace_immediate_callback(cur.event_ctx, im, TEVENT_EVENT_TRACE_BEFORE_HANDLER);
+	cur.handler(handler_ev, im, cur.private_data);
+	if (cur.wrapper != NULL) {
+		cur.wrapper->ops->after_immediate_handler(
+					cur.wrapper->wrap_ev,
+					cur.wrapper->private_state,
+					cur.wrapper->main_ev,
+					im,
+					cur.handler_name,
+					cur.schedule_location);
+		tevent_wrapper_pop_use_internal(handler_ev, cur.wrapper);
+	}
+	im->busy = false;
+
+	/* The event was removed in tevent_common_immediate_cancel(). */
+	if (im->detach_ev_ctx != NULL) {
+		struct tevent_context *detach_ev_ctx = im->detach_ev_ctx;
+		im->detach_ev_ctx = NULL;
+		tevent_trace_immediate_callback(detach_ev_ctx,
+						im,
+						TEVENT_EVENT_TRACE_DETACH);
+	}
+
+	if (im->destroyed) {
+		talloc_set_destructor(im, NULL);
+		TALLOC_FREE(im);
+		if (removed != NULL) {
+			*removed = true;
+		}
+	}
+
+	return 0;
+}
+
+/*
+  trigger the first immediate event and return true
+  if no event was triggered return false
+*/
+bool tevent_common_loop_immediate(struct tevent_context *ev)
+{
+	struct tevent_immediate *im = ev->immediate_events;
+	int ret;
+
+	if (!im) {
+		return false;
+	}
+
+	ret = tevent_common_invoke_immediate_handler(im, NULL);
+	if (ret != 0) {
+		tevent_abort(ev, "tevent_common_invoke_immediate_handler() failed");
+	}
+
+	return true;
+}
+
+
+void tevent_immediate_set_tag(struct tevent_immediate *im, uint64_t tag)
+{
+	if (im == NULL) {
+		return;
+	}
+
+	im->tag = tag;
+}
+
+uint64_t tevent_immediate_get_tag(const struct tevent_immediate *im)
+{
+	if (im == NULL) {
+		return 0;
+	}
+
+	return im->tag;
+}
diff --git a/lib/tevent/tevent_internal.h b/lib/tevent/tevent_internal.h
new file mode 100644
index 0000000..3ca7fe1
--- /dev/null
+++ b/lib/tevent/tevent_internal.h
@@ -0,0 +1,527 @@
+/*
+   Unix SMB/CIFS implementation.
+
+   generalised event loop handling
+
+   INTERNAL STRUCTS. THERE ARE NO API GUARANTEES.
+   External users should only ever have to include this header when
+   implementing new tevent backends.
+
+   Copyright (C) Stefan Metzmacher 2005-2009
+
+     ** NOTE! The following LGPL license applies to the tevent
+     ** library. This does NOT imply that all of Samba is released
+     ** under the LGPL
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 3 of the License, or (at your option) any later version.
+
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with this library; if not, see <http://www.gnu.org/licenses/>.
+*/
+
+struct tevent_req {
+	/**
+	 * @brief What to do on completion
+	 *
+	 * This is used for the user of an async request, fn is called when
+	 * the request completes, either successfully or with an error.
+	 */
+	struct {
+		/**
+		 * @brief Completion function
+		 * Completion function, to be filled by the API user
+		 */
+		tevent_req_fn fn;
+		/**
+		 * @brief Private data for the completion function
+		 */
+		void *private_data;
+	} async;
+
+	/**
+	 * @brief Private state pointer for the actual implementation
+	 *
+	 * The implementation doing the work for the async request needs to
+	 * keep around current data like for example a fd event. The user of
+	 * an async request should not touch this.
+	 */
+	void *data;
+
+	/**
+	 * @brief A function to overwrite the default print function
+	 *
+	 * The implementation doing the work may want to implement a
+	 * custom function to print the text representation of the async
+	 * request.
+	 */
+	tevent_req_print_fn private_print;
+
+	/**
+	 * @brief A function to cancel the request
+	 *
+	 * The implementation might want to set a function
+	 * that is called when the tevent_req_cancel() function
+	 * was called.
+	 */
+	tevent_req_cancel_fn private_cancel;
+
+	/**
+	 * @brief A function to cleanup the request
+	 *
+	 * The implementation might want to set a function
+	 * that is called before the tevent_req_done() and tevent_req_error()
+	 * trigger the callers callback function.
+	 */
+	struct {
+		tevent_req_cleanup_fn fn;
+		enum tevent_req_state state;
+	} private_cleanup;
+
+	/**
+	 * @brief Internal state of the request
+	 *
+	 * Callers should only access this via functions and never directly.
+	 */
+	struct {
+		/**
+		 * @brief The talloc type of the data pointer
+		 *
+		 * This is filled by the tevent_req_create() macro.
+		 *
+		 * This for debugging only.
+		 */
+		const char *private_type;
+
+		/**
+		 * @brief The location where the request was created
+		 *
+		 * This uses the __location__ macro via the tevent_req_create()
+		 * macro.
+		 *
+		 * This for debugging only.
+		 */
+		const char *create_location;
+
+		/**
+		 * @brief The location where the request was finished
+		 *
+		 * This uses the __location__ macro via the tevent_req_done(),
+		 * tevent_req_error() or tevent_req_nomem() macro.
+		 *
+		 * This for debugging only.
+		 */
+		const char *finish_location;
+
+		/**
+		 * @brief The location where the request was canceled
+		 *
+		 * This uses the __location__ macro via the
+		 * tevent_req_cancel() macro.
+		 *
+		 * This for debugging only.
+		 */
+		const char *cancel_location;
+
+		/**
+		 * @brief The external state - will be queried by the caller
+		 *
+		 * While the async request is being processed, state will remain in
+		 * TEVENT_REQ_IN_PROGRESS. A request is finished if
+		 * req->state>=TEVENT_REQ_DONE.
+		 */
+		enum tevent_req_state state;
+
+		/**
+		 * @brief status code when finished
+		 *
+		 * This status can be queried in the async completion function. It
+		 * will be set to 0 when everything went fine.
+		 */
+		uint64_t error;
+
+		/**
+		 * @brief the immediate event used by tevent_req_post
+		 *
+		 */
+		struct tevent_immediate *trigger;
+
+		/**
+		 * @brief An event context which will be used to
+		 *        defer the _tevent_req_notify_callback().
+		 */
+		struct tevent_context *defer_callback_ev;
+
+		/**
+		 * @brief the timer event if tevent_req_set_endtime was used
+		 *
+		 */
+		struct tevent_timer *timer;
+
+		/**
+		 * @brief The place where profiling data is kept
+		 */
+		struct tevent_req_profile *profile;
+	} internal;
+};
+
+struct tevent_req_profile {
+	struct tevent_req_profile *prev, *next;
+	struct tevent_req_profile *parent;
+	const char *req_name;
+	pid_t pid;
+	const char *start_location;
+	struct timeval start_time;
+	const char *stop_location;
+	struct timeval stop_time;
+	enum tevent_req_state state;
+	uint64_t user_error;
+	struct tevent_req_profile *subprofiles;
+};
+
+struct tevent_fd {
+	struct tevent_fd *prev, *next;
+	struct tevent_context *event_ctx;
+	struct tevent_wrapper_glue *wrapper;
+	bool busy;
+	bool destroyed;
+	int fd;
+	uint16_t flags; /* see TEVENT_FD_* flags */
+	tevent_fd_handler_t handler;
+	tevent_fd_close_fn_t close_fn;
+	/* this is private for the specific handler */
+	void *private_data;
+	/* this is for debugging only! */
+	const char *handler_name;
+	const char *location;
+	/* this is private for the events_ops implementation */
+	uint64_t additional_flags;
+	void *additional_data;
+	/* custom tag that can be set by caller */
+	uint64_t tag;
+};
+
+struct tevent_timer {
+	struct tevent_timer *prev, *next;
+	struct tevent_context *event_ctx;
+	struct tevent_wrapper_glue *wrapper;
+	bool busy;
+	bool destroyed;
+	struct timeval next_event;
+	tevent_timer_handler_t handler;
+	/* this is private for the specific handler */
+	void *private_data;
+	/* this is for debugging only! */
+	const char *handler_name;
+	const char *location;
+	/* this is private for the events_ops implementation */
+	void *additional_data;
+	/* custom tag that can be set by caller */
+	uint64_t tag;
+};
+
+struct tevent_immediate {
+	struct tevent_immediate *prev, *next;
+	struct tevent_context *event_ctx;
+	struct tevent_wrapper_glue *wrapper;
+	bool busy;
+	bool destroyed;
+	struct tevent_context *detach_ev_ctx;
+	tevent_immediate_handler_t handler;
+	/* this is private for the specific handler */
+	void *private_data;
+	/* this is for debugging only! */
+	const char *handler_name;
+	const char *create_location;
+	const char *schedule_location;
+	/* this is private for the events_ops implementation */
+	void (*cancel_fn)(struct tevent_immediate *im);
+	void *additional_data;
+	/* custom tag that can be set by caller */
+	uint64_t tag;
+};
+
+struct tevent_signal {
+	struct tevent_signal *prev, *next;
+	struct tevent_context *event_ctx;
+	struct tevent_wrapper_glue *wrapper;
+	bool busy;
+	bool destroyed;
+	int signum;
+	int sa_flags;
+	tevent_signal_handler_t handler;
+	/* this is private for the specific handler */
+	void *private_data;
+	/* this is for debugging only! */
+	const char *handler_name;
+	const char *location;
+	/* this is private for the events_ops implementation */
+	void *additional_data;
+	/* custom tag that can be set by caller */
+	uint64_t tag;
+};
+
+struct tevent_threaded_context {
+	struct tevent_threaded_context *next, *prev;
+
+#ifdef HAVE_PTHREAD
+	pthread_mutex_t event_ctx_mutex;
+#endif
+	struct tevent_context *event_ctx;
+};
+
+struct tevent_debug_ops {
+	void (*debug)(void *context, enum tevent_debug_level level,
+		      const char *fmt, va_list ap) PRINTF_ATTRIBUTE(3,0);
+	void *context;
+};
+
+void tevent_debug(struct tevent_context *ev, enum tevent_debug_level level,
+		  const char *fmt, ...) PRINTF_ATTRIBUTE(3,4);
+
+void tevent_abort(struct tevent_context *ev, const char *reason);
+
+void tevent_common_check_double_free(TALLOC_CTX *ptr, const char *reason);
+
+struct tevent_context {
+	/* the specific events implementation */
+	const struct tevent_ops *ops;
+
+	/*
+	 * The following three pointers are queried on every loop_once
+	 * in the order in which they appear here. Not measured, but
+	 * hopefully putting them at the top together with "ops"
+	 * should make tevent a *bit* more cache-friendly than before.
+	 */
+
+	/* list of signal events - used by common code */
+	struct tevent_signal *signal_events;
+
+	/* List of threaded job indicators */
+	struct tevent_threaded_context *threaded_contexts;
+
+	/* list of immediate events - used by common code */
+	struct tevent_immediate *immediate_events;
+
+	/* list of fd events - used by common code */
+	struct tevent_fd *fd_events;
+
+	/* list of timed events - used by common code */
+	struct tevent_timer *timer_events;
+
+	/* List of scheduled immediates */
+	pthread_mutex_t scheduled_mutex;
+	struct tevent_immediate *scheduled_immediates;
+
+	/* this is private for the events_ops implementation */
+	void *additional_data;
+
+	/* pipe hack used with signal handlers */
+	struct tevent_fd *wakeup_fde;
+	int wakeup_fd;		/* fd to write into */
+#ifndef HAVE_EVENT_FD
+	int wakeup_read_fd;
+#endif
+
+	/* debugging operations */
+	struct tevent_debug_ops debug_ops;
+
+	/* info about the nesting status */
+	struct {
+		bool allowed;
+		uint32_t level;
+		tevent_nesting_hook hook_fn;
+		void *hook_private;
+	} nesting;
+
+	struct {
+		struct {
+			tevent_trace_callback_t callback;
+			void *private_data;
+		} point;
+
+		struct {
+			tevent_trace_fd_callback_t callback;
+			void *private_data;
+		} fde;
+
+		struct {
+			tevent_trace_signal_callback_t callback;
+			void *private_data;
+		} se;
+
+		struct {
+			tevent_trace_timer_callback_t callback;
+			void *private_data;
+		} te;
+
+		struct {
+			tevent_trace_immediate_callback_t callback;
+			void *private_data;
+		} im;
+
+		struct {
+			tevent_trace_queue_callback_t callback;
+			void *private_data;
+		} qe;
+	} tracing;
+
+	struct {
+		/*
+		 * This is used on the main event context
+		 */
+		struct tevent_wrapper_glue *list;
+
+		/*
+		 * This is used on the wrapper event context
+		 */
+		struct tevent_wrapper_glue *glue;
+	} wrapper;
+
+	/*
+	 * an optimization pointer into timer_events
+	 * used by used by common code via
+	 * tevent_common_add_timer_v2()
+	 */
+	struct tevent_timer *last_zero_timer;
+
+#ifdef HAVE_PTHREAD
+	struct tevent_context *prev, *next;
+#endif
+};
+
+const struct tevent_ops *tevent_find_ops_byname(const char *name);
+
+int tevent_common_context_destructor(struct tevent_context *ev);
+int tevent_common_loop_wait(struct tevent_context *ev,
+			    const char *location);
+
+int tevent_common_fd_destructor(struct tevent_fd *fde);
+struct tevent_fd *tevent_common_add_fd(struct tevent_context *ev,
+				       TALLOC_CTX *mem_ctx,
+				       int fd,
+				       uint16_t flags,
+				       tevent_fd_handler_t handler,
+				       void *private_data,
+				       const char *handler_name,
+				       const char *location);
+void tevent_common_fd_set_close_fn(struct tevent_fd *fde,
+				   tevent_fd_close_fn_t close_fn);
+uint16_t tevent_common_fd_get_flags(struct tevent_fd *fde);
+void tevent_common_fd_set_flags(struct tevent_fd *fde, uint16_t flags);
+int tevent_common_invoke_fd_handler(struct tevent_fd *fde, uint16_t flags,
+				    bool *removed);
+
+struct tevent_timer *tevent_common_add_timer(struct tevent_context *ev,
+					     TALLOC_CTX *mem_ctx,
+					     struct timeval next_event,
+					     tevent_timer_handler_t handler,
+					     void *private_data,
+					     const char *handler_name,
+					     const char *location);
+struct tevent_timer *tevent_common_add_timer_v2(struct tevent_context *ev,
+						TALLOC_CTX *mem_ctx,
+					        struct timeval next_event,
+					        tevent_timer_handler_t handler,
+					        void *private_data,
+					        const char *handler_name,
+					        const char *location);
+struct timeval tevent_common_loop_timer_delay(struct tevent_context *);
+int tevent_common_invoke_timer_handler(struct tevent_timer *te,
+				       struct timeval current_time,
+				       bool *removed);
+
+void tevent_common_schedule_immediate(struct tevent_immediate *im,
+				      struct tevent_context *ev,
+				      tevent_immediate_handler_t handler,
+				      void *private_data,
+				      const char *handler_name,
+				      const char *location);
+int tevent_common_invoke_immediate_handler(struct tevent_immediate *im,
+					   bool *removed);
+bool tevent_common_loop_immediate(struct tevent_context *ev);
+void tevent_common_threaded_activate_immediate(struct tevent_context *ev);
+
+bool tevent_common_have_events(struct tevent_context *ev);
+int tevent_common_wakeup_init(struct tevent_context *ev);
+int tevent_common_wakeup_fd(int fd);
+int tevent_common_wakeup(struct tevent_context *ev);
+
+struct tevent_signal *tevent_common_add_signal(struct tevent_context *ev,
+					       TALLOC_CTX *mem_ctx,
+					       int signum,
+					       int sa_flags,
+					       tevent_signal_handler_t handler,
+					       void *private_data,
+					       const char *handler_name,
+					       const char *location);
+int tevent_common_check_signal(struct tevent_context *ev);
+void tevent_cleanup_pending_signal_handlers(struct tevent_signal *se);
+int tevent_common_invoke_signal_handler(struct tevent_signal *se,
+					int signum, int count, void *siginfo,
+					bool *removed);
+
+struct tevent_context *tevent_wrapper_main_ev(struct tevent_context *ev);
+
+struct tevent_wrapper_ops;
+
+struct tevent_wrapper_glue {
+	struct tevent_wrapper_glue *prev, *next;
+	struct tevent_context *wrap_ev;
+	struct tevent_context *main_ev;
+	bool busy;
+	bool destroyed;
+	const struct tevent_wrapper_ops *ops;
+	void *private_state;
+};
+
+void tevent_wrapper_push_use_internal(struct tevent_context *ev,
+				      struct tevent_wrapper_glue *wrapper);
+void tevent_wrapper_pop_use_internal(const struct tevent_context *__ev_ptr,
+				     struct tevent_wrapper_glue *wrapper);
+
+bool tevent_standard_init(void);
+bool tevent_poll_init(void);
+bool tevent_poll_event_add_fd_internal(struct tevent_context *ev,
+				       struct tevent_fd *fde);
+bool tevent_poll_mt_init(void);
+#ifdef HAVE_EPOLL
+bool tevent_epoll_init(void);
+void tevent_epoll_set_panic_fallback(struct tevent_context *ev,
+			bool (*panic_fallback)(struct tevent_context *ev,
+					       bool replay));
+#endif
+#ifdef HAVE_SOLARIS_PORTS
+bool tevent_port_init(void);
+#endif
+
+
+void tevent_trace_point_callback(struct tevent_context *ev,
+				 enum tevent_trace_point);
+
+void tevent_trace_fd_callback(struct tevent_context *ev,
+			      struct tevent_fd *fde,
+			      enum tevent_event_trace_point);
+
+void tevent_trace_signal_callback(struct tevent_context *ev,
+				  struct tevent_signal *se,
+				  enum tevent_event_trace_point);
+
+void tevent_trace_timer_callback(struct tevent_context *ev,
+				 struct tevent_timer *te,
+				 enum tevent_event_trace_point);
+
+void tevent_trace_immediate_callback(struct tevent_context *ev,
+				     struct tevent_immediate *im,
+				     enum tevent_event_trace_point);
+
+void tevent_trace_queue_callback(struct tevent_context *ev,
+				 struct tevent_queue_entry *qe,
+				 enum tevent_event_trace_point);
diff --git a/lib/tevent/tevent_liboop.c b/lib/tevent/tevent_liboop.c
new file mode 100644
index 0000000..68be76b
--- /dev/null
+++ b/lib/tevent/tevent_liboop.c
@@ -0,0 +1,292 @@
+/* 
+   Unix SMB/CIFS implementation.
+   main select loop and event handling
+   wrapper for http://git.lysator.liu.se/liboop/
+
+   Copyright (C) Stefan Metzmacher 2005
+
+     ** NOTE! The following LGPL license applies to the tevent
+     ** library. This does NOT imply that all of Samba is released
+     ** under the LGPL
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 3 of the License, or (at your option) any later version.
+
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with this library; if not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "events.h"
+#include "events_internal.h"
+
+#include <oop.h>
+
+/*
+ !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 
+
+ NOTE: this code compiles fine, but is completely *UNTESTED*
+       and is only committed as an example
+
+ !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!	 
+*/
+
+static int oop_event_context_destructor(struct tevent_context *ev)
+{
+	oop_source_sys *oop_sys = ev->additional_data;
+
+	oop_sys_delete(oop_sys);
+
+	return 0;
+}
+
+/*
+  create a oop_event_context structure.
+*/
+static int oop_event_context_init(struct tevent_context *ev, void *private_data)
+{
+	oop_source_sys *oop_sys = private_data;
+
+	if (!oop_sys) {
+		oop_sys = oop_sys_new();
+		if (!oop_sys) {
+			return -1;
+		}
+
+		talloc_set_destructor(ev, oop_event_context_destructor);
+	}
+
+	ev->additional_data = oop_sys;
+
+	return 0;
+}
+
+static void *oop_event_fd_handler(oop_source *oop, int fd, oop_event oop_type, void *ptr)
+{
+	struct tevent_fd *fde = ptr;
+
+	if (fd != fde->fd) return OOP_ERROR;
+
+	switch(oop_type) {
+		case OOP_READ:
+			fde->handler(fde->event_ctx, fde, EVENT_FD_READ, fde->private_data);
+			return OOP_CONTINUE;
+		case OOP_WRITE:
+			fde->handler(fde->event_ctx, fde, EVENT_FD_WRITE, fde->private_data);
+			return OOP_CONTINUE;			
+		case OOP_EXCEPTION:
+			return OOP_ERROR;
+		case OOP_NUM_EVENTS:
+			return OOP_ERROR;
+	}
+
+	return OOP_ERROR;
+}
+
+/*
+  destroy an fd_event
+*/
+static int oop_event_fd_destructor(struct tevent_fd *fde)
+{
+	struct tevent_context *ev = fde->event_ctx;
+	oop_source_sys *oop_sys = ev->additional_data;
+	oop_source *oop = oop_sys_source(oop_sys);
+
+	if (fde->flags & EVENT_FD_READ)
+		oop->cancel_fd(oop, fde->fd, OOP_READ);
+	if (fde->flags & EVENT_FD_WRITE)
+		oop->cancel_fd(oop, fde->fd, OOP_WRITE);
+
+	if (fde->flags & EVENT_FD_AUTOCLOSE) {
+		close(fde->fd);
+		fde->fd = -1;
+	}
+
+	return 0;
+}
+
+/*
+  add a fd based event
+  return NULL on failure (memory allocation error)
+*/
+static struct tevent_fd *oop_event_add_fd(struct tevent_context *ev, TALLOC_CTX *mem_ctx,
+					 int fd, uint16_t flags,
+					 event_fd_handler_t handler,
+					 void *private_data)
+{
+	struct tevent_fd *fde;
+	oop_source_sys *oop_sys = ev->additional_data;
+	oop_source *oop = oop_sys_source(oop_sys);
+	
+	fde = talloc(mem_ctx?mem_ctx:ev, struct tevent_fd);
+	if (!fde) return NULL;
+
+	fde->event_ctx		= ev;
+	fde->fd			= fd;
+	fde->flags		= flags;
+	fde->handler		= handler;
+	fde->private_data	= private_data;
+	fde->additional_flags	= 0;
+	fde->additional_data	= NULL;
+
+	if (fde->flags & EVENT_FD_READ)
+		oop->on_fd(oop, fde->fd, OOP_READ, oop_event_fd_handler, fde);
+	if (fde->flags & EVENT_FD_WRITE)
+		oop->on_fd(oop, fde->fd, OOP_WRITE, oop_event_fd_handler, fde);
+
+	talloc_set_destructor(fde, oop_event_fd_destructor);
+
+	return fde;
+}
+
+/*
+  return the fd event flags
+*/
+static uint16_t oop_event_get_fd_flags(struct tevent_fd *fde)
+{
+	return fde->flags;
+}
+
+/*
+  set the fd event flags
+*/
+static void oop_event_set_fd_flags(struct tevent_fd *fde, uint16_t flags)
+{
+	oop_source_sys *oop_sys;
+	oop_source *oop;
+
+	oop_sys = fde->event_ctx->additional_data;
+	oop = oop_sys_source(oop_sys);
+
+	if ((fde->flags & EVENT_FD_READ)&&(!(flags & EVENT_FD_READ)))
+		oop->cancel_fd(oop, fde->fd, OOP_READ);
+
+	if ((!(fde->flags & EVENT_FD_READ))&&(flags & EVENT_FD_READ))
+		oop->on_fd(oop, fde->fd, OOP_READ, oop_event_fd_handler, fde);
+
+	if ((fde->flags & EVENT_FD_WRITE)&&(!(flags & EVENT_FD_WRITE)))
+		oop->cancel_fd(oop, fde->fd, OOP_WRITE);
+
+	if ((!(fde->flags & EVENT_FD_WRITE))&&(flags & EVENT_FD_WRITE))
+		oop->on_fd(oop, fde->fd, OOP_WRITE, oop_event_fd_handler, fde);
+
+	fde->flags = flags;
+}
+
+static int oop_event_timed_destructor(struct tevent_timer *te);
+
+static int oop_event_timed_deny_destructor(struct tevent_timer *te)
+{
+	return -1;
+}
+
+static void *oop_event_timed_handler(oop_source *oop, struct timeval t, void *ptr)
+{
+	struct tevent_timer *te = ptr;
+
+	/* deny the handler to free the event */
+	talloc_set_destructor(te, oop_event_timed_deny_destructor);
+	te->handler(te->event_ctx, te, t, te->private_data);
+
+	talloc_set_destructor(te, oop_event_timed_destructor);
+	talloc_free(te);
+
+	return OOP_CONTINUE;
+}
+
+/*
+  destroy a timed event
+*/
+static int oop_event_timed_destructor(struct tevent_timer *te)
+{
+	struct tevent_context *ev = te->event_ctx;
+	oop_source_sys *oop_sys = ev->additional_data;
+	oop_source *oop = oop_sys_source(oop_sys);
+
+	oop->cancel_time(oop, te->next_event, oop_event_timed_handler, te);
+
+	return 0;
+}
+
+/*
+  add a timed event
+  return NULL on failure (memory allocation error)
+*/
+static struct tevent_timer *oop_event_add_timed(struct tevent_context *ev, TALLOC_CTX *mem_ctx,
+					       struct timeval next_event, 
+					       event_timed_handler_t handler, 
+					       void *private_data) 
+{
+	oop_source_sys *oop_sys = ev->additional_data;
+	oop_source *oop = oop_sys_source(oop_sys);
+	struct tevent_timer *te;
+
+	te = talloc(mem_ctx?mem_ctx:ev, struct tevent_timer);
+	if (te == NULL) return NULL;
+
+	te->event_ctx		= ev;
+	te->next_event		= next_event;
+	te->handler		= handler;
+	te->private_data	= private_data;
+	te->additional_data	= NULL;
+
+	oop->on_time(oop, te->next_event, oop_event_timed_handler, te);
+
+	talloc_set_destructor(te, oop_event_timed_destructor);
+
+	return te;
+}
+
+/*
+  do a single event loop using the events defined in ev 
+*/
+static int oop_event_loop_once(struct tevent_context *ev)
+{
+	void *oop_ret;
+	oop_source_sys *oop_sys = ev->additional_data;
+
+	oop_ret = oop_sys_run_once(oop_sys);
+	if (oop_ret == OOP_CONTINUE) {
+		return 0;
+	}
+
+	return -1;
+}
+
+/*
+  return on failure or (with 0) if all fd events are removed
+*/
+static int oop_event_loop_wait(struct tevent_context *ev)
+{
+	void *oop_ret;
+	oop_source_sys *oop_sys = ev->additional_data;
+
+	oop_ret = oop_sys_run(oop_sys);
+	if (oop_ret == OOP_CONTINUE) {
+		return 0;
+	}
+
+	return -1;
+}
+
+static const struct event_ops event_oop_ops = {
+	.context_init	= oop_event_context_init,
+	.add_fd		= oop_event_add_fd,
+	.get_fd_flags	= oop_event_get_fd_flags,
+	.set_fd_flags	= oop_event_set_fd_flags,
+	.add_timer	= oop_event_add_timed,
+	.add_signal	= common_event_add_signal,
+	.loop_once	= oop_event_loop_once,
+	.loop_wait	= oop_event_loop_wait,
+};
+
+const struct event_ops *event_liboop_get_ops(void)
+{
+	return &event_oop_ops;
+}
diff --git a/lib/tevent/tevent_poll.c b/lib/tevent/tevent_poll.c
new file mode 100644
index 0000000..f4c6c2d
--- /dev/null
+++ b/lib/tevent/tevent_poll.c
@@ -0,0 +1,663 @@
+/*
+   Unix SMB/CIFS implementation.
+   main select loop and event handling
+   Copyright (C) Andrew Tridgell	2003-2005
+   Copyright (C) Stefan Metzmacher	2005-2009
+
+     ** NOTE! The following LGPL license applies to the tevent
+     ** library. This does NOT imply that all of Samba is released
+     ** under the LGPL
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 3 of the License, or (at your option) any later version.
+
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with this library; if not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "replace.h"
+#include "system/filesys.h"
+#include "system/select.h"
+#include "tevent.h"
+#include "tevent_util.h"
+#include "tevent_internal.h"
+
+struct poll_event_context {
+	/* a pointer back to the generic event_context */
+	struct tevent_context *ev;
+
+	/*
+	 * one or more events were deleted or disabled
+	 */
+	bool deleted;
+
+	/*
+	 * These two arrays are maintained together.
+	 *
+	 * The following is always true:
+	 * num_fds <= num_fdes
+	 *
+	 * new 'fresh' elements are added at the end
+	 * of the 'fdes' array and picked up later
+	 * to the 'fds' array in poll_event_sync_arrays()
+	 * before the poll() syscall.
+	 */
+	struct pollfd *fds;
+	size_t num_fds;
+	struct tevent_fd **fdes;
+	size_t num_fdes;
+
+	/*
+	 * use tevent_common_wakeup(ev) to wake the poll() thread
+	 */
+	bool use_mt_mode;
+};
+
+/*
+  create a poll_event_context structure.
+*/
+static int poll_event_context_init(struct tevent_context *ev)
+{
+	struct poll_event_context *poll_ev;
+
+	/*
+	 * we might be called during tevent_re_initialise()
+	 * which means we need to free our old additional_data
+	 * in order to detach old fd events from the
+	 * poll_ev->fresh list
+	 */
+	TALLOC_FREE(ev->additional_data);
+
+	poll_ev = talloc_zero(ev, struct poll_event_context);
+	if (poll_ev == NULL) {
+		return -1;
+	}
+	poll_ev->ev = ev;
+	ev->additional_data = poll_ev;
+	return 0;
+}
+
+static int poll_event_context_init_mt(struct tevent_context *ev)
+{
+	struct poll_event_context *poll_ev;
+	int ret;
+
+	ret = poll_event_context_init(ev);
+	if (ret == -1) {
+		return ret;
+	}
+
+	poll_ev = talloc_get_type_abort(
+		ev->additional_data, struct poll_event_context);
+
+	ret = tevent_common_wakeup_init(ev);
+	if (ret != 0) {
+		return ret;
+	}
+
+	poll_ev->use_mt_mode = true;
+
+	return 0;
+}
+
+static void poll_event_wake_pollthread(struct poll_event_context *poll_ev)
+{
+	if (!poll_ev->use_mt_mode) {
+		return;
+	}
+	tevent_common_wakeup(poll_ev->ev);
+}
+
+/*
+  destroy an fd_event
+*/
+static int poll_event_fd_destructor(struct tevent_fd *fde)
+{
+	struct tevent_context *ev = fde->event_ctx;
+	struct poll_event_context *poll_ev;
+	uint64_t del_idx = fde->additional_flags;
+
+	if (ev == NULL) {
+		goto done;
+	}
+
+	poll_ev = talloc_get_type_abort(
+		ev->additional_data, struct poll_event_context);
+
+	if (del_idx == UINT64_MAX) {
+		goto done;
+	}
+
+	poll_ev->fdes[del_idx] = NULL;
+	poll_ev->deleted = true;
+	poll_event_wake_pollthread(poll_ev);
+done:
+	return tevent_common_fd_destructor(fde);
+}
+
+static void poll_event_schedule_immediate(struct tevent_immediate *im,
+					  struct tevent_context *ev,
+					  tevent_immediate_handler_t handler,
+					  void *private_data,
+					  const char *handler_name,
+					  const char *location)
+{
+	struct poll_event_context *poll_ev = talloc_get_type_abort(
+		ev->additional_data, struct poll_event_context);
+
+	tevent_common_schedule_immediate(im, ev, handler, private_data,
+					 handler_name, location);
+	poll_event_wake_pollthread(poll_ev);
+}
+
+/*
+  Private function called by "standard" backend fallback.
+  Note this only allows fallback to "poll" backend, not "poll-mt".
+*/
+_PRIVATE_ bool tevent_poll_event_add_fd_internal(struct tevent_context *ev,
+						 struct tevent_fd *fde)
+{
+	struct poll_event_context *poll_ev = talloc_get_type_abort(
+		ev->additional_data, struct poll_event_context);
+	uint64_t fde_idx = UINT64_MAX;
+	size_t num_fdes;
+
+	fde->additional_flags = UINT64_MAX;
+	talloc_set_destructor(fde, poll_event_fd_destructor);
+
+	if (fde->flags == 0) {
+		/*
+		 * Nothing more to do...
+		 */
+		return true;
+	}
+
+	/*
+	 * We need to add it to the end of the 'fdes' array.
+	 */
+	num_fdes = poll_ev->num_fdes + 1;
+	if (num_fdes > talloc_array_length(poll_ev->fdes)) {
+		struct tevent_fd **tmp_fdes = NULL;
+		size_t array_length;
+
+		array_length = (num_fdes + 15) & ~15; /* round up to 16 */
+
+		tmp_fdes = talloc_realloc(poll_ev,
+					  poll_ev->fdes,
+					  struct tevent_fd *,
+					  array_length);
+		if (tmp_fdes == NULL) {
+			return false;
+		}
+		poll_ev->fdes = tmp_fdes;
+	}
+
+	fde_idx = poll_ev->num_fdes;
+	fde->additional_flags = fde_idx;
+	poll_ev->fdes[fde_idx] = fde;
+	poll_ev->num_fdes++;
+
+	return true;
+}
+
+/*
+  add a fd based event
+  return NULL on failure (memory allocation error)
+*/
+static struct tevent_fd *poll_event_add_fd(struct tevent_context *ev,
+					   TALLOC_CTX *mem_ctx,
+					   int fd, uint16_t flags,
+					   tevent_fd_handler_t handler,
+					   void *private_data,
+					   const char *handler_name,
+					   const char *location)
+{
+	struct poll_event_context *poll_ev = talloc_get_type_abort(
+		ev->additional_data, struct poll_event_context);
+	struct tevent_fd *fde;
+	bool ok;
+
+	if (fd < 0) {
+		return NULL;
+	}
+
+	fde = tevent_common_add_fd(ev,
+				   mem_ctx,
+				   fd,
+				   flags,
+				   handler,
+				   private_data,
+				   handler_name,
+				   location);
+	if (fde == NULL) {
+		return NULL;
+	}
+
+	ok = tevent_poll_event_add_fd_internal(ev, fde);
+	if (!ok) {
+		TALLOC_FREE(fde);
+		return NULL;
+	}
+	poll_event_wake_pollthread(poll_ev);
+
+	/*
+	 * poll_event_loop_poll will take care of the rest in
+	 * poll_event_setup_fresh
+	 */
+	return fde;
+}
+
+/*
+  set the fd event flags
+*/
+static void poll_event_set_fd_flags(struct tevent_fd *fde, uint16_t flags)
+{
+	struct tevent_context *ev = fde->event_ctx;
+	struct poll_event_context *poll_ev;
+	uint64_t idx = fde->additional_flags;
+	uint16_t pollflags;
+
+	if (ev == NULL) {
+		return;
+	}
+
+	if (fde->flags == flags) {
+		return;
+	}
+
+	poll_ev = talloc_get_type_abort(
+		ev->additional_data, struct poll_event_context);
+
+	fde->flags = flags;
+
+	if (idx == UINT64_MAX) {
+		/*
+		 * We move it between the fresh and disabled lists.
+		 */
+		tevent_poll_event_add_fd_internal(ev, fde);
+		poll_event_wake_pollthread(poll_ev);
+		return;
+	}
+
+	if (fde->flags == 0) {
+		/*
+		 * We need to remove it from the array
+		 * and move it to the disabled list.
+		 */
+		poll_ev->fdes[idx] = NULL;
+		poll_ev->deleted = true;
+		fde->additional_flags = UINT64_MAX;
+		poll_event_wake_pollthread(poll_ev);
+		return;
+	}
+
+	if (idx >= poll_ev->num_fds) {
+		/*
+		 * Not yet added to the
+		 * poll_ev->fds array.
+		 */
+		poll_event_wake_pollthread(poll_ev);
+		return;
+	}
+
+	pollflags = 0;
+
+	if (flags & TEVENT_FD_READ) {
+		pollflags |= (POLLIN|POLLHUP);
+	}
+	if (flags & TEVENT_FD_WRITE) {
+		pollflags |= (POLLOUT);
+	}
+	poll_ev->fds[idx].events = pollflags;
+
+	poll_event_wake_pollthread(poll_ev);
+}
+
+static bool poll_event_sync_arrays(struct tevent_context *ev,
+				   struct poll_event_context *poll_ev)
+{
+	size_t i;
+	size_t array_length;
+
+	if (poll_ev->deleted) {
+
+		for (i=0; i < poll_ev->num_fds;) {
+			struct tevent_fd *fde = poll_ev->fdes[i];
+			size_t ci;
+
+			if (fde != NULL) {
+				i++;
+				continue;
+			}
+
+			/*
+			 * This fde was talloc_free()'ed. Delete it
+			 * from the arrays
+			 */
+			poll_ev->num_fds -= 1;
+			ci = poll_ev->num_fds;
+			if (ci > i) {
+				poll_ev->fds[i] = poll_ev->fds[ci];
+				poll_ev->fdes[i] = poll_ev->fdes[ci];
+				if (poll_ev->fdes[i] != NULL) {
+					poll_ev->fdes[i]->additional_flags = i;
+				}
+			}
+			poll_ev->fds[ci] = (struct pollfd) { .fd = -1 };
+			poll_ev->fdes[ci] = NULL;
+		}
+		poll_ev->deleted = false;
+	}
+
+	if (poll_ev->num_fds == poll_ev->num_fdes) {
+		return true;
+	}
+
+	/*
+	 * Recheck the size of both arrays and make sure
+	 * poll_fd->fds array has at least the size of the
+	 * in use poll_ev->fdes array.
+	 */
+	if (poll_ev->num_fdes > talloc_array_length(poll_ev->fds)) {
+		struct pollfd *tmp_fds = NULL;
+
+		/*
+		 * Make sure both allocated the same length.
+		 */
+		array_length = talloc_array_length(poll_ev->fdes);
+
+		tmp_fds = talloc_realloc(poll_ev,
+					 poll_ev->fds,
+					 struct pollfd,
+					 array_length);
+		if (tmp_fds == NULL) {
+			return false;
+		}
+		poll_ev->fds = tmp_fds;
+	}
+
+	/*
+	 * Now setup the new elements.
+	 */
+	for (i = poll_ev->num_fds; i < poll_ev->num_fdes; i++) {
+		struct tevent_fd *fde = poll_ev->fdes[i];
+		struct pollfd *pfd = &poll_ev->fds[poll_ev->num_fds];
+
+		if (fde == NULL) {
+			continue;
+		}
+
+		if (i > poll_ev->num_fds) {
+			poll_ev->fdes[poll_ev->num_fds] = fde;
+			fde->additional_flags = poll_ev->num_fds;
+			poll_ev->fdes[i] = NULL;
+		}
+
+		pfd->fd = fde->fd;
+		pfd->events = 0;
+		pfd->revents = 0;
+
+		if (fde->flags & TEVENT_FD_READ) {
+			pfd->events |= (POLLIN|POLLHUP);
+		}
+		if (fde->flags & TEVENT_FD_WRITE) {
+			pfd->events |= (POLLOUT);
+		}
+
+		poll_ev->num_fds += 1;
+	}
+	/* Both are in sync again */
+	poll_ev->num_fdes = poll_ev->num_fds;
+
+	/*
+	 * Check if we should shrink the arrays
+	 * But keep at least 16 elements.
+	 */
+
+	array_length = (poll_ev->num_fds + 15) & ~15; /* round up to 16 */
+	array_length = MAX(array_length, 16);
+	if (array_length < talloc_array_length(poll_ev->fdes)) {
+		struct tevent_fd **tmp_fdes = NULL;
+		struct pollfd *tmp_fds = NULL;
+
+		tmp_fdes = talloc_realloc(poll_ev,
+					  poll_ev->fdes,
+					  struct tevent_fd *,
+					  array_length);
+		if (tmp_fdes == NULL) {
+			return false;
+		}
+		poll_ev->fdes = tmp_fdes;
+
+		tmp_fds = talloc_realloc(poll_ev,
+					 poll_ev->fds,
+					 struct pollfd,
+					 array_length);
+		if (tmp_fds == NULL) {
+			return false;
+		}
+		poll_ev->fds = tmp_fds;
+	}
+
+	return true;
+}
+
+/*
+  event loop handling using poll()
+*/
+static int poll_event_loop_poll(struct tevent_context *ev,
+				struct timeval *tvalp)
+{
+	struct poll_event_context *poll_ev = talloc_get_type_abort(
+		ev->additional_data, struct poll_event_context);
+	int pollrtn;
+	int timeout = -1;
+	int poll_errno;
+	struct tevent_fd *fde = NULL;
+	struct tevent_fd *next = NULL;
+	unsigned i;
+	bool ok;
+
+	if (ev->signal_events && tevent_common_check_signal(ev)) {
+		return 0;
+	}
+
+	if (tvalp != NULL) {
+		timeout = tvalp->tv_sec * 1000;
+		timeout += (tvalp->tv_usec + 999) / 1000;
+	}
+
+	ok = poll_event_sync_arrays(ev, poll_ev);
+	if (!ok) {
+		return -1;
+	}
+
+	tevent_trace_point_callback(poll_ev->ev, TEVENT_TRACE_BEFORE_WAIT);
+	pollrtn = poll(poll_ev->fds, poll_ev->num_fds, timeout);
+	poll_errno = errno;
+	tevent_trace_point_callback(poll_ev->ev, TEVENT_TRACE_AFTER_WAIT);
+
+	if (pollrtn == -1 && poll_errno == EINTR && ev->signal_events) {
+		tevent_common_check_signal(ev);
+		return 0;
+	}
+
+	if (pollrtn == 0 && tvalp) {
+		/* we don't care about a possible delay here */
+		tevent_common_loop_timer_delay(ev);
+		return 0;
+	}
+
+	if (pollrtn <= 0) {
+		/*
+		 * No fd's ready
+		 */
+		return 0;
+	}
+
+	/* at least one file descriptor is ready - check
+	   which ones and call the handler, being careful to allow
+	   the handler to remove itself when called */
+
+	for (fde = ev->fd_events; fde; fde = next) {
+		uint64_t idx = fde->additional_flags;
+		struct pollfd *pfd;
+		uint16_t flags = 0;
+
+		next = fde->next;
+
+		if (idx == UINT64_MAX) {
+			continue;
+		}
+
+		pfd = &poll_ev->fds[idx];
+
+		if (pfd->revents & POLLNVAL) {
+			/*
+			 * the socket is dead! this should never
+			 * happen as the socket should have first been
+			 * made readable and that should have removed
+			 * the event, so this must be a bug.
+			 *
+			 * We ignore it here to match the epoll
+			 * behavior.
+			 */
+			tevent_debug(ev, TEVENT_DEBUG_ERROR,
+				     "POLLNVAL on fde[%p] fd[%d] - disabling\n",
+				     fde, pfd->fd);
+			poll_ev->fdes[idx] = NULL;
+			poll_ev->deleted = true;
+			DLIST_REMOVE(ev->fd_events, fde);
+			fde->wrapper = NULL;
+			fde->event_ctx = NULL;
+			continue;
+		}
+
+		if (pfd->revents & (POLLHUP|POLLERR)) {
+			/* If we only wait for TEVENT_FD_WRITE, we
+			   should not tell the event handler about it,
+			   and remove the writable flag, as we only
+			   report errors when waiting for read events
+			   to match the select behavior. */
+			if (!(fde->flags & TEVENT_FD_READ)) {
+				TEVENT_FD_NOT_WRITEABLE(fde);
+				continue;
+			}
+			flags |= TEVENT_FD_READ;
+		}
+		if (pfd->revents & POLLIN) {
+			flags |= TEVENT_FD_READ;
+		}
+		if (pfd->revents & POLLOUT) {
+			flags |= TEVENT_FD_WRITE;
+		}
+		/*
+		 * Note that fde->flags could be changed when using
+		 * the poll_mt backend together with threads,
+		 * that why we need to check pfd->revents and fde->flags
+		 */
+		flags &= fde->flags;
+		if (flags != 0) {
+			DLIST_DEMOTE(ev->fd_events, fde);
+			return tevent_common_invoke_fd_handler(fde, flags, NULL);
+		}
+	}
+
+	for (i = 0; i < poll_ev->num_fds; i++) {
+		if (poll_ev->fds[i].revents & POLLNVAL) {
+			/*
+			 * the socket is dead! this should never
+			 * happen as the socket should have first been
+			 * made readable and that should have removed
+			 * the event, so this must be a bug or
+			 * a race in the poll_mt usage.
+			 */
+			fde = poll_ev->fdes[i];
+			tevent_debug(ev, TEVENT_DEBUG_WARNING,
+				     "POLLNVAL on dangling fd[%d] fde[%p] - disabling\n",
+				     poll_ev->fds[i].fd, fde);
+			poll_ev->fdes[i] = NULL;
+			poll_ev->deleted = true;
+			if (fde != NULL) {
+				DLIST_REMOVE(ev->fd_events, fde);
+				fde->wrapper = NULL;
+				fde->event_ctx = NULL;
+			}
+		}
+	}
+
+	return 0;
+}
+
+/*
+  do a single event loop using the events defined in ev
+*/
+static int poll_event_loop_once(struct tevent_context *ev,
+				const char *location)
+{
+	struct timeval tval;
+
+	if (ev->signal_events &&
+	    tevent_common_check_signal(ev)) {
+		return 0;
+	}
+
+	if (ev->threaded_contexts != NULL) {
+		tevent_common_threaded_activate_immediate(ev);
+	}
+
+	if (ev->immediate_events &&
+	    tevent_common_loop_immediate(ev)) {
+		return 0;
+	}
+
+	tval = tevent_common_loop_timer_delay(ev);
+	if (tevent_timeval_is_zero(&tval)) {
+		return 0;
+	}
+
+	return poll_event_loop_poll(ev, &tval);
+}
+
+static const struct tevent_ops poll_event_ops = {
+	.context_init		= poll_event_context_init,
+	.add_fd			= poll_event_add_fd,
+	.set_fd_close_fn	= tevent_common_fd_set_close_fn,
+	.get_fd_flags		= tevent_common_fd_get_flags,
+	.set_fd_flags		= poll_event_set_fd_flags,
+	.add_timer		= tevent_common_add_timer_v2,
+	.schedule_immediate	= tevent_common_schedule_immediate,
+	.add_signal		= tevent_common_add_signal,
+	.loop_once		= poll_event_loop_once,
+	.loop_wait		= tevent_common_loop_wait,
+};
+
+_PRIVATE_ bool tevent_poll_init(void)
+{
+	return tevent_register_backend("poll", &poll_event_ops);
+}
+
+static const struct tevent_ops poll_event_mt_ops = {
+	.context_init		= poll_event_context_init_mt,
+	.add_fd			= poll_event_add_fd,
+	.set_fd_close_fn	= tevent_common_fd_set_close_fn,
+	.get_fd_flags		= tevent_common_fd_get_flags,
+	.set_fd_flags		= poll_event_set_fd_flags,
+	.add_timer		= tevent_common_add_timer_v2,
+	.schedule_immediate	= poll_event_schedule_immediate,
+	.add_signal		= tevent_common_add_signal,
+	.loop_once		= poll_event_loop_once,
+	.loop_wait		= tevent_common_loop_wait,
+};
+
+_PRIVATE_ bool tevent_poll_mt_init(void)
+{
+	return tevent_register_backend("poll_mt", &poll_event_mt_ops);
+}
diff --git a/lib/tevent/tevent_port.c b/lib/tevent/tevent_port.c
new file mode 100644
index 0000000..ccb65a7
--- /dev/null
+++ b/lib/tevent/tevent_port.c
@@ -0,0 +1,804 @@
+/*
+   Unix SMB/CIFS implementation.
+
+   Main select loop and event handling - Solaris port implementation.
+   Losely based on the Linux epoll backend.
+
+   Copyright (C) Jeremy Allison		2013
+
+     ** NOTE! The following LGPL license applies to the tevent
+     ** library. This does NOT imply that all of Samba is released
+     ** under the LGPL
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 3 of the License, or (at your option) any later version.
+
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with this library; if not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "replace.h"
+#include "system/filesys.h"
+#include "system/select.h"
+#include "tevent.h"
+#include "tevent_internal.h"
+#include "tevent_util.h"
+
+struct port_associate_vals {
+	struct port_associate_vals *prev, *next;
+	struct port_event_context *port_ev;
+	int events;
+	struct tevent_fd *fde;
+	bool associated_event;
+};
+
+struct port_event_context {
+	/* a pointer back to the generic event_context */
+	struct tevent_context *ev;
+
+	/* This is the handle from port_create */
+	int port_fd;
+
+	pid_t pid;
+
+	/* List of associations. */
+	struct port_associate_vals *po_vals;
+};
+
+#define PORT_ADDITIONAL_FD_FLAG_HAS_ASSOCIATION	(1<<0)
+#define PORT_ADDITIONAL_FD_FLAG_REPORT_ERROR	(1<<1)
+#define PORT_ADDITIONAL_FD_FLAG_GOT_ERROR	(1<<2)
+#define PORT_ADDITIONAL_FD_FLAG_HAS_MPX		(1<<3)
+
+/*
+  Map from TEVENT_FD_* to POLLIN/POLLOUT
+*/
+static int port_map_flags(uint16_t flags)
+{
+	int ret = 0;
+	if (flags & TEVENT_FD_READ) ret |= (POLLIN | POLLERR | POLLHUP);
+	if (flags & TEVENT_FD_WRITE) ret |= (POLLOUT | POLLERR | POLLHUP);
+	return ret;
+}
+
+/*
+ Free the port fd
+*/
+static int port_ctx_destructor(struct port_event_context *port_ev)
+{
+	close(port_ev->port_fd);
+	port_ev->port_fd = -1;
+	return 0;
+}
+
+/*
+ Init the port fd
+*/
+static int port_init_ctx(struct port_event_context *port_ev)
+{
+	port_ev->port_fd = port_create();
+	if (port_ev->port_fd == -1) {
+		tevent_debug(port_ev->ev, TEVENT_DEBUG_FATAL,
+			     "Failed to create port handle.\n");
+		return -1;
+	}
+
+	if (!ev_set_close_on_exec(port_ev->port_fd)) {
+		tevent_debug(port_ev->ev, TEVENT_DEBUG_WARNING,
+			     "Failed to set close-on-exec, file descriptor may be leaked to children.\n");
+	}
+
+	port_ev->pid = tevent_cached_getpid();
+	talloc_set_destructor(port_ev, port_ctx_destructor);
+
+	return 0;
+}
+
+/*
+ Functions to manage the lower level cache of associated events on the port_fd.
+*/
+
+static int port_associate_vals_destructor(struct port_associate_vals *val)
+{
+	DLIST_REMOVE(val->port_ev->po_vals, val);
+	memset(val, '\0', sizeof(struct port_associate_vals));
+	return 0;
+}
+
+/*
+ * TODO: As the port_association is per-fde, it should be possible to store it
+ * directly in fde->additional_data, alongside any multiplexed-fde. That way the
+ * lookup on store and delete would be avoided, and associate_all_events() could
+ * walk the ev->fd_events list.
+ */
+static bool store_port_association(struct port_event_context *port_ev,
+				struct tevent_fd *fde,
+				int events)
+{
+	struct port_associate_vals *val;
+
+	for (val = port_ev->po_vals; val; val = val->next) {
+		if (val->fde->fd == fde->fd) {
+			/* Association already attached to fd. */
+			if (val->events != events) {
+				val->events = events;
+				val->associated_event = false;
+			}
+			return true;
+		}
+	}
+
+	val = talloc_zero(port_ev, struct port_associate_vals);
+	if (val == NULL) {
+		return false;
+	}
+
+	val->port_ev = port_ev;
+	val->fde = fde;
+	val->events = events;
+	val->associated_event = false;
+
+	DLIST_ADD(port_ev->po_vals, val);
+	talloc_set_destructor(val, port_associate_vals_destructor);
+
+	return true;
+}
+
+static void delete_port_association(struct port_event_context *port_ev,
+				struct tevent_fd *fde)
+{
+	struct port_associate_vals *val;
+
+	for (val = port_ev->po_vals; val; val = val->next) {
+		if (val->fde == fde) {
+			if (val->associated_event) {
+				(void)port_dissociate(port_ev->port_fd,
+							PORT_SOURCE_FD,
+							fde->fd);
+			}
+			talloc_free(val);
+			return;
+		}
+	}
+}
+
+static int associate_all_events(struct port_event_context *port_ev)
+{
+	struct port_associate_vals *val;
+
+	for (val = port_ev->po_vals; val; val = val->next) {
+		int ret;
+		if (val->associated_event) {
+			continue;
+		}
+		ret = port_associate(port_ev->port_fd,
+					PORT_SOURCE_FD,
+					(uintptr_t)val->fde->fd,
+					val->events,
+					(void *)val);
+		if (ret != 0) {
+			return -1;
+		}
+		val->associated_event = true;
+	}
+	return 0;
+}
+
+static int port_update_event(struct port_event_context *port_ev, struct tevent_fd *fde);
+
+/*
+  Reopen the port handle when our pid changes.
+ */
+static int port_check_reopen(struct port_event_context *port_ev)
+{
+	struct tevent_fd *fde;
+	pid_t pid = tevent_cached_getpid();
+
+	if (port_ev->pid == pid) {
+		return 0;
+	}
+
+	close(port_ev->port_fd);
+	port_ev->port_fd = port_create();
+	if (port_ev->port_fd == -1) {
+		tevent_debug(port_ev->ev, TEVENT_DEBUG_FATAL,
+				"port_create() failed");
+		return -1;
+	}
+
+	if (!ev_set_close_on_exec(port_ev->port_fd)) {
+		tevent_debug(port_ev->ev, TEVENT_DEBUG_WARNING,
+			     "Failed to set close-on-exec, file descriptor may be leaked to children.\n");
+	}
+
+	port_ev->pid = pid;
+	for (fde=port_ev->ev->fd_events;fde;fde=fde->next) {
+		fde->additional_flags &= PORT_ADDITIONAL_FD_FLAG_HAS_ASSOCIATION;
+		if (port_update_event(port_ev, fde) != 0) {
+			return -1;
+		}
+	}
+	return 0;
+}
+
+/*
+ * Solaris ports cannot add the same file descriptor twice, once
+ * with read, once with write which is allowed by the tevent backend.
+ * Multiplex the existing fde, flag it as such so we can search for the
+ * correct fde on event triggering.
+ */
+
+static void port_setup_multiplex_fd(struct port_event_context *port_ev,
+				struct tevent_fd *add_fde,
+				struct tevent_fd *mpx_fde)
+{
+	/*
+	 * Make each fde->additional_data pointers point at each other
+	 * so we can look them up from each other. They are now paired.
+	 */
+	mpx_fde->additional_data = add_fde;
+	add_fde->additional_data = mpx_fde;
+
+	/* Now flag both fde's as being multiplexed. */
+	mpx_fde->additional_flags |= PORT_ADDITIONAL_FD_FLAG_HAS_MPX;
+	add_fde->additional_flags |= PORT_ADDITIONAL_FD_FLAG_HAS_MPX;
+
+	/* We need to keep the GOT_ERROR flag. */
+	if (mpx_fde->additional_flags & PORT_ADDITIONAL_FD_FLAG_GOT_ERROR) {
+		add_fde->additional_flags |= PORT_ADDITIONAL_FD_FLAG_GOT_ERROR;
+	}
+}
+
+/*
+ Add the port event to the given fd_event,
+ Or modify an existing event.
+*/
+
+static int port_add_event(struct port_event_context *port_ev, struct tevent_fd *fde)
+{
+	int flags = port_map_flags(fde->flags);
+	struct tevent_fd *mpx_fde = NULL;
+
+	fde->additional_flags &= ~PORT_ADDITIONAL_FD_FLAG_HAS_ASSOCIATION;
+	fde->additional_flags &= ~PORT_ADDITIONAL_FD_FLAG_REPORT_ERROR;
+
+	if (fde->additional_flags & PORT_ADDITIONAL_FD_FLAG_HAS_MPX) {
+		/*
+		 * This is already a multiplexed fde, we need to include both
+		 * flags in the modified event.
+		 */
+		mpx_fde = talloc_get_type_abort(fde->additional_data,
+						struct tevent_fd);
+
+		mpx_fde->additional_flags &= ~PORT_ADDITIONAL_FD_FLAG_HAS_ASSOCIATION;
+		mpx_fde->additional_flags &= ~PORT_ADDITIONAL_FD_FLAG_REPORT_ERROR;
+
+		flags |= port_map_flags(mpx_fde->flags);
+	} else {
+		/*
+		 * Not (yet) a multiplexed event. See if there
+		 * is already an event with the same fd.
+		 */
+		for (mpx_fde = port_ev->ev->fd_events; mpx_fde; mpx_fde = mpx_fde->next) {
+			if (mpx_fde->fd != fde->fd) {
+				continue;
+			}
+			if (mpx_fde == fde) {
+				continue;
+			}
+			/* Same fd. */
+			break;
+		}
+		if (mpx_fde) {
+			if (mpx_fde->additional_flags & PORT_ADDITIONAL_FD_FLAG_HAS_MPX) {
+				/* Logic error. Can't have more then 2 multiplexed fde's. */
+				tevent_debug(port_ev->ev, TEVENT_DEBUG_FATAL,
+					"multiplex fde for fd[%d] is already multiplexed\n",
+					mpx_fde->fd);
+				return -1;
+			}
+			flags |= port_map_flags(mpx_fde->flags);
+		}
+	}
+
+	if (!store_port_association(port_ev,
+				fde,
+				flags)) {
+		tevent_debug(port_ev->ev, TEVENT_DEBUG_FATAL,
+			"store_port_association failed for fd[%d]\n",
+			fde->fd);
+		return -1;
+	}
+
+	/* Note we have an association now. */
+	fde->additional_flags |= PORT_ADDITIONAL_FD_FLAG_HAS_ASSOCIATION;
+	/* Only if we want to read do we tell the event handler about errors. */
+	if (fde->flags & TEVENT_FD_READ) {
+		fde->additional_flags |= PORT_ADDITIONAL_FD_FLAG_REPORT_ERROR;
+	}
+	if (mpx_fde == NULL) {
+		return 0;
+	}
+	/* Set up the multiplex pointer. Does no harm if already multiplexed. */
+	port_setup_multiplex_fd(port_ev,
+				fde,
+				mpx_fde);
+
+	mpx_fde->additional_flags |= PORT_ADDITIONAL_FD_FLAG_HAS_ASSOCIATION;
+	/* Only if we want to read do we tell the event handler about errors. */
+	if (mpx_fde->flags & TEVENT_FD_READ) {
+		mpx_fde->additional_flags |= PORT_ADDITIONAL_FD_FLAG_REPORT_ERROR;
+	}
+
+	return 0;
+}
+
+/*
+ Delete the port association for the given fd_event.
+*/
+
+static void port_del_event(struct port_event_context *port_ev, struct tevent_fd *fde)
+{
+	struct tevent_fd *mpx_fde = NULL;
+
+	fde->additional_flags &= ~PORT_ADDITIONAL_FD_FLAG_HAS_ASSOCIATION;
+	fde->additional_flags &= ~PORT_ADDITIONAL_FD_FLAG_REPORT_ERROR;
+
+	if (fde->additional_flags & PORT_ADDITIONAL_FD_FLAG_HAS_MPX) {
+		/*
+		 * This is a multiplexed fde, we need to remove
+		 * both associations.
+		 */
+		mpx_fde = talloc_get_type_abort(fde->additional_data,
+						struct tevent_fd);
+
+		mpx_fde->additional_flags &= ~PORT_ADDITIONAL_FD_FLAG_HAS_ASSOCIATION;
+		mpx_fde->additional_flags &= ~PORT_ADDITIONAL_FD_FLAG_REPORT_ERROR;
+		mpx_fde->additional_data = NULL;
+
+		fde->additional_data = NULL;
+	}
+	delete_port_association(port_ev, fde);
+}
+
+/*
+ Add or remove the port event from the given fd_event
+*/
+static int port_update_event(struct port_event_context *port_ev, struct tevent_fd *fde)
+{
+	bool got_error = (fde->additional_flags & PORT_ADDITIONAL_FD_FLAG_GOT_ERROR);
+	bool want_read = (fde->flags & TEVENT_FD_READ);
+	bool want_write = (fde->flags & TEVENT_FD_WRITE);
+	struct tevent_fd *mpx_fde = NULL;
+
+	if (fde->additional_flags & PORT_ADDITIONAL_FD_FLAG_HAS_MPX) {
+		/*
+		 * work out what the multiplexed fde wants.
+		 */
+		mpx_fde = talloc_get_type_abort(fde->additional_data,
+						struct tevent_fd);
+		if (mpx_fde->flags & TEVENT_FD_READ) {
+			want_read = true;
+		}
+		if (mpx_fde->flags & TEVENT_FD_WRITE) {
+			want_write = true;
+		}
+	}
+
+	if (fde->additional_flags & PORT_ADDITIONAL_FD_FLAG_HAS_ASSOCIATION) {
+		/* There's already an association. */
+		if (want_read || (want_write && !got_error)) {
+			return port_add_event(port_ev, fde);
+		}
+		/*
+		 * If we want to match the select behavior, we need to remove the port event
+		 * when the caller isn't interested in events.
+		 */
+		port_del_event(port_ev, fde);
+		return 0;
+	}
+
+	/* There's no port event attached to the fde. */
+	if (want_read || (want_write && !got_error)) {
+		return port_add_event(port_ev, fde);
+	}
+	return 0;
+}
+
+/*
+ Cope with port_get returning EPOLLHP|EPOLLERR on an association.
+ Return true if there's nothing else to do, false if this event
+ needs further handling.
+*/
+
+static bool port_handle_hup_or_err(struct port_event_context *port_ev,
+				struct tevent_fd *fde)
+{
+	if (fde == NULL) {
+		return true;
+	}
+
+	fde->additional_flags |= PORT_ADDITIONAL_FD_FLAG_GOT_ERROR;
+	/*
+	 * If we only wait for TEVENT_FD_WRITE, we should not tell the
+	 * event handler about it, and remove the port association,
+	 * as we only report error when waiting for read events,
+	 * to match the select() behavior.
+	 */
+	if (!(fde->additional_flags & PORT_ADDITIONAL_FD_FLAG_REPORT_ERROR)) {
+		/*
+		 * Do the same as the poll backend and
+		 * remove the writable flag.
+		 */
+		fde->flags &= ~TEVENT_FD_WRITE;
+		return true;
+	}
+	/* This has TEVENT_FD_READ set, we're not finished. */
+	return false;
+}
+
+/*
+  Event loop handling using Solaris ports.
+*/
+static int port_event_loop(struct port_event_context *port_ev, struct timeval *tvalp)
+{
+	int ret;
+#define MAXEVENTS 1
+	port_event_t events[MAXEVENTS];
+	uint_t nget = 1;
+	uint_t max_events = MAXEVENTS;
+	uint_t i;
+	int port_errno;
+	struct timespec ts;
+	struct tevent_context *ev = port_ev->ev;
+
+	if (tvalp) {
+		ts.tv_sec = tvalp->tv_sec;
+		ts.tv_nsec = tvalp->tv_usec * 1000;
+	}
+
+	if (port_ev->ev->signal_events &&
+	    tevent_common_check_signal(ev)) {
+		return 0;
+	}
+
+	/*
+	 * Solaris triggers sending the event to the port
+	 * at the time the port association is done. Postpone
+	 * associating fd's until just before we get the events,
+	 * otherwise we can deadlock.
+	 */
+
+	if (associate_all_events(port_ev) != 0) {
+		return -1;
+	}
+
+	tevent_trace_point_callback(ev, TEVENT_TRACE_BEFORE_WAIT);
+	ret = port_getn(port_ev->port_fd, events, max_events, &nget, &ts);
+	port_errno = errno;
+	tevent_trace_point_callback(ev, TEVENT_TRACE_AFTER_WAIT);
+
+	if (ret == -1 && port_errno == EINTR) {
+		if (ev->signal_events) {
+			tevent_common_check_signal(ev);
+		}
+		/*
+		 * If no signal handlers we got an unsolicited
+		 * signal wakeup. This can happen with epoll
+		 * too. Just return and ignore.
+		 */
+		return 0;
+	}
+
+	if (ret == -1 && port_errno == ETIME) {
+		/*
+		 * If errno is set to ETIME it is possible that we still got an event.
+		 * In that case we need to go through the processing loop so that we
+		 * reassociate the received event with the port or the association will
+		 * be lost so check the value of nget is 0 before returning.
+		 */
+		if (nget == 0) {
+			/* we don't care about a possible delay here */
+			tevent_common_loop_timer_delay(ev);
+			return 0;
+		}
+		/*
+		 * Set the return value to 0 since we do not actually have an error and we
+		 * do have events that need to be processed.  This keeps us from getting
+		 * caught in the generic error test.
+		 */
+		ret = 0;
+	}
+
+	if (ret == -1) {
+		tevent_debug(ev, TEVENT_DEBUG_ERROR,
+				"port_get failed (%s)\n",
+				strerror(errno));
+		return -1;
+	}
+
+	for (i = 0; i < nget; i++) {
+		struct tevent_fd *mpx_fde = NULL;
+		struct tevent_fd *fde = NULL;
+		uint16_t flags = 0;
+		struct port_associate_vals *val = talloc_get_type(events[i].portev_user,
+							struct port_associate_vals);
+		if (val == NULL) {
+			tevent_debug(ev, TEVENT_DEBUG_ERROR,
+				"port_getn() gave bad data");
+			return -1;
+		}
+
+		/* Mark this event as needing to be re-associated. */
+		val->associated_event = false;
+
+		fde = val->fde;
+
+		if (fde->additional_flags & PORT_ADDITIONAL_FD_FLAG_HAS_MPX) {
+			/*
+			 * Save off the multiplexed event in case we need
+			 * to use it to call the handler function.
+			 */
+			mpx_fde = talloc_get_type_abort(fde->additional_data,
+						struct tevent_fd);
+		}
+
+		if (events[i].portev_events & (POLLHUP|POLLERR)) {
+			bool handled_fde = port_handle_hup_or_err(port_ev, fde);
+			bool handled_mpx = port_handle_hup_or_err(port_ev, mpx_fde);
+
+			if (handled_fde && handled_mpx) {
+				return port_update_event(port_ev, fde);
+			}
+
+			if (!handled_mpx) {
+				/*
+				 * If the mpx event was the one that needs
+				 * further handling, it's the TEVENT_FD_READ
+				 * event so switch over and call that handler.
+				 */
+				fde = mpx_fde;
+				mpx_fde = NULL;
+			}
+			flags |= TEVENT_FD_READ;
+		}
+
+		if (events[i].portev_events & POLLIN) {
+			flags |= TEVENT_FD_READ;
+		}
+		if (events[i].portev_events & POLLOUT) {
+			flags |= TEVENT_FD_WRITE;
+		}
+
+		if (flags & TEVENT_FD_WRITE) {
+			if (fde->flags & TEVENT_FD_WRITE) {
+				mpx_fde = NULL;
+			}
+			if (mpx_fde && (mpx_fde->flags & TEVENT_FD_WRITE)) {
+				fde = mpx_fde;
+				mpx_fde = NULL;
+			}
+
+			if (mpx_fde) {
+				/* Ensure we got the right fde. */
+				if ((flags & fde->flags) == 0) {
+					fde = mpx_fde;
+					mpx_fde = NULL;
+				}
+			}
+		}
+
+		/*
+		 * Make sure we only pass the flags
+		 * the handler is expecting.
+		 */
+		flags &= fde->flags;
+		if (flags) {
+			return tevent_common_invoke_fd_handler(fde, flags, NULL);
+		}
+	}
+
+	return 0;
+}
+
+
+/*
+  create a port_event_context structure.
+*/
+static int port_event_context_init(struct tevent_context *ev)
+{
+	int ret;
+	struct port_event_context *port_ev;
+
+	/*
+	 * We might be called during tevent_re_initialise()
+	 * which means we need to free our old additional_data.
+	 */
+	TALLOC_FREE(ev->additional_data);
+
+	port_ev = talloc_zero(ev, struct port_event_context);
+	if (!port_ev) {
+		return -1;
+	}
+	port_ev->ev = ev;
+	port_ev->port_fd = -1;
+	port_ev->pid = (pid_t)-1;
+
+	ret = port_init_ctx(port_ev);
+	if (ret != 0) {
+		talloc_free(port_ev);
+		return ret;
+	}
+
+	ev->additional_data = port_ev;
+	return 0;
+}
+
+/*
+  destroy an fd_event
+*/
+static int port_event_fd_destructor(struct tevent_fd *fde)
+{
+	struct tevent_context *ev = fde->event_ctx;
+	struct port_event_context *port_ev = NULL;
+	struct tevent_fd *mpx_fde = NULL;
+	int flags = (int)fde->flags;
+
+	if (ev == NULL) {
+		return tevent_common_fd_destructor(fde);
+	}
+
+	port_ev = talloc_get_type_abort(ev->additional_data,
+					 struct port_event_context);
+
+	DLIST_REMOVE(ev->fd_events, fde);
+
+	if (fde->additional_flags & PORT_ADDITIONAL_FD_FLAG_HAS_MPX) {
+		mpx_fde = talloc_get_type_abort(fde->additional_data,
+						struct tevent_fd);
+
+		fde->additional_flags &= ~PORT_ADDITIONAL_FD_FLAG_HAS_MPX;
+		mpx_fde->additional_flags &= ~PORT_ADDITIONAL_FD_FLAG_HAS_MPX;
+
+		fde->additional_data = NULL;
+		mpx_fde->additional_data = NULL;
+
+		fde->additional_flags &= PORT_ADDITIONAL_FD_FLAG_HAS_ASSOCIATION;
+	}
+
+	(void)port_check_reopen(port_ev);
+
+	if (mpx_fde != NULL) {
+		(void)port_update_event(port_ev, mpx_fde);
+	}
+
+	fde->flags = 0;
+	(void)port_update_event(port_ev, fde);
+	fde->flags = flags;
+
+	return tevent_common_fd_destructor(fde);
+}
+
+/*
+  add a fd based event
+  return NULL on failure (memory allocation error)
+*/
+static struct tevent_fd *port_event_add_fd(struct tevent_context *ev, TALLOC_CTX *mem_ctx,
+					    int fd, uint16_t flags,
+					    tevent_fd_handler_t handler,
+					    void *private_data,
+					    const char *handler_name,
+					    const char *location)
+{
+	struct port_event_context *port_ev =
+				talloc_get_type_abort(ev->additional_data,
+				struct port_event_context);
+	struct tevent_fd *fde;
+
+	fde = tevent_common_add_fd(ev, mem_ctx, fd, flags,
+				   handler, private_data,
+				   handler_name, location);
+	if (!fde) {
+		return NULL;
+	}
+
+	talloc_set_destructor(fde, port_event_fd_destructor);
+
+	if (port_check_reopen(port_ev) != 0) {
+		TALLOC_FREE(fde);
+		return NULL;
+	}
+
+	if (port_update_event(port_ev, fde) != 0) {
+		TALLOC_FREE(fde);
+		return NULL;
+	}
+
+	return fde;
+}
+
+/*
+  set the fd event flags
+*/
+static void port_event_set_fd_flags(struct tevent_fd *fde, uint16_t flags)
+{
+	struct tevent_context *ev;
+	struct port_event_context *port_ev;
+
+	if (fde->flags == flags) {
+		return;
+	}
+
+	ev = fde->event_ctx;
+	port_ev = talloc_get_type_abort(ev->additional_data,
+				struct port_event_context);
+
+	fde->flags = flags;
+
+	(void)port_check_reopen(port_ev);
+	(void)port_update_event(port_ev, fde);
+}
+
+/*
+  do a single event loop using the events defined in ev
+*/
+static int port_event_loop_once(struct tevent_context *ev, const char *location)
+{
+	struct port_event_context *port_ev = talloc_get_type(ev->additional_data,
+							   struct port_event_context);
+	struct timeval tval;
+
+	if (ev->signal_events &&
+	    tevent_common_check_signal(ev)) {
+		return 0;
+	}
+
+	if (ev->threaded_contexts != NULL) {
+		tevent_common_threaded_activate_immediate(ev);
+	}
+
+	if (ev->immediate_events &&
+	    tevent_common_loop_immediate(ev)) {
+		return 0;
+	}
+
+	tval = tevent_common_loop_timer_delay(ev);
+	if (tevent_timeval_is_zero(&tval)) {
+		return 0;
+	}
+
+	if (port_check_reopen(port_ev) != 0) {
+		errno = EINVAL;
+		return -1;
+	}
+	return port_event_loop(port_ev, &tval);
+}
+
+static const struct tevent_ops port_event_ops = {
+	.context_init		= port_event_context_init,
+	.add_fd			= port_event_add_fd,
+	.set_fd_close_fn	= tevent_common_fd_set_close_fn,
+	.get_fd_flags		= tevent_common_fd_get_flags,
+	.set_fd_flags		= port_event_set_fd_flags,
+	.add_timer		= tevent_common_add_timer_v2,
+	.schedule_immediate	= tevent_common_schedule_immediate,
+	.add_signal		= tevent_common_add_signal,
+	.loop_once		= port_event_loop_once,
+	.loop_wait		= tevent_common_loop_wait,
+};
+
+_PRIVATE_ bool tevent_port_init(void)
+{
+	if (!tevent_register_backend("port", &port_event_ops)) {
+		return false;
+	}
+	tevent_set_default_backend("port");
+	return true;
+}
diff --git a/lib/tevent/tevent_queue.c b/lib/tevent/tevent_queue.c
new file mode 100644
index 0000000..dffe30f
--- /dev/null
+++ b/lib/tevent/tevent_queue.c
@@ -0,0 +1,402 @@
+/*
+   Unix SMB/CIFS implementation.
+   Infrastructure for async requests
+   Copyright (C) Volker Lendecke 2008
+   Copyright (C) Stefan Metzmacher 2009
+
+     ** NOTE! The following LGPL license applies to the tevent
+     ** library. This does NOT imply that all of Samba is released
+     ** under the LGPL
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 3 of the License, or (at your option) any later version.
+
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with this library; if not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "replace.h"
+#include "tevent.h"
+#include "tevent_internal.h"
+#include "tevent_util.h"
+
+struct tevent_queue_entry {
+	struct tevent_queue_entry *prev, *next;
+	struct tevent_queue *queue;
+
+	bool triggered;
+
+	struct tevent_req *req;
+	struct tevent_context *ev;
+
+	tevent_queue_trigger_fn_t trigger;
+	void *private_data;
+	uint64_t tag;
+};
+
+struct tevent_queue {
+	const char *name;
+	const char *location;
+
+	bool running;
+	struct tevent_immediate *immediate;
+
+	size_t length;
+	struct tevent_queue_entry *list;
+};
+
+static void tevent_queue_immediate_trigger(struct tevent_context *ev,
+					   struct tevent_immediate *im,
+					   void *private_data);
+
+static int tevent_queue_entry_destructor(struct tevent_queue_entry *e)
+{
+	struct tevent_queue *q = e->queue;
+
+	if (!q) {
+		return 0;
+	}
+
+	tevent_trace_queue_callback(q->list->ev, e, TEVENT_EVENT_TRACE_DETACH);
+	DLIST_REMOVE(q->list, e);
+	q->length--;
+
+	if (!q->running) {
+		return 0;
+	}
+
+	if (!q->list) {
+		return 0;
+	}
+
+	if (q->list->triggered) {
+		return 0;
+	}
+
+	tevent_schedule_immediate(q->immediate,
+				  q->list->ev,
+				  tevent_queue_immediate_trigger,
+				  q);
+
+	return 0;
+}
+
+static int tevent_queue_destructor(struct tevent_queue *q)
+{
+	q->running = false;
+
+	while (q->list) {
+		struct tevent_queue_entry *e = q->list;
+		talloc_free(e);
+	}
+
+	return 0;
+}
+
+struct tevent_queue *_tevent_queue_create(TALLOC_CTX *mem_ctx,
+					  const char *name,
+					  const char *location)
+{
+	struct tevent_queue *queue;
+
+	queue = talloc_zero(mem_ctx, struct tevent_queue);
+	if (!queue) {
+		return NULL;
+	}
+
+	queue->name = talloc_strdup(queue, name);
+	if (!queue->name) {
+		talloc_free(queue);
+		return NULL;
+	}
+	queue->immediate = tevent_create_immediate(queue);
+	if (!queue->immediate) {
+		talloc_free(queue);
+		return NULL;
+	}
+
+	queue->location = location;
+
+	/* queue is running by default */
+	queue->running = true;
+
+	talloc_set_destructor(queue, tevent_queue_destructor);
+	return queue;
+}
+
+static void tevent_queue_immediate_trigger(struct tevent_context *ev,
+					   struct tevent_immediate *im,
+					   void *private_data)
+{
+	struct tevent_queue *q =
+		talloc_get_type_abort(private_data,
+		struct tevent_queue);
+
+	if (!q->running) {
+		return;
+	}
+
+	if (!q->list) {
+		return;
+	}
+
+	tevent_trace_queue_callback(ev, q->list,
+				    TEVENT_EVENT_TRACE_BEFORE_HANDLER);
+	q->list->triggered = true;
+	q->list->trigger(q->list->req, q->list->private_data);
+}
+
+static void tevent_queue_noop_trigger(struct tevent_req *req,
+				      void *_private_data)
+{
+	/* this is doing nothing but blocking the queue */
+}
+
+static struct tevent_queue_entry *tevent_queue_add_internal(
+					struct tevent_queue *queue,
+					struct tevent_context *ev,
+					struct tevent_req *req,
+					tevent_queue_trigger_fn_t trigger,
+					void *private_data,
+					bool allow_direct)
+{
+	struct tevent_queue_entry *e;
+
+	e = talloc_zero(req, struct tevent_queue_entry);
+	if (e == NULL) {
+		return NULL;
+	}
+
+	/*
+	 * if there is no trigger, it is just a blocker
+	 */
+	if (trigger == NULL) {
+		trigger = tevent_queue_noop_trigger;
+	}
+
+	e->queue = queue;
+	e->req = req;
+	e->ev = ev;
+	e->trigger = trigger;
+	e->private_data = private_data;
+
+	if (queue->length > 0) {
+		/*
+		 * if there are already entries in the
+		 * queue do not optimize.
+		 */
+		allow_direct = false;
+	}
+
+	if (req->async.fn != NULL) {
+		/*
+		 * If the caller wants to optimize for the
+		 * empty queue case, call the trigger only
+		 * if there is no callback defined for the
+		 * request yet.
+		 */
+		allow_direct = false;
+	}
+
+	DLIST_ADD_END(queue->list, e);
+	queue->length++;
+	talloc_set_destructor(e, tevent_queue_entry_destructor);
+	tevent_trace_queue_callback(ev, e, TEVENT_EVENT_TRACE_ATTACH);
+
+	if (!queue->running) {
+		return e;
+	}
+
+	if (queue->list->triggered) {
+		return e;
+	}
+
+	/*
+	 * If allowed we directly call the trigger
+	 * avoiding possible delays caused by
+	 * an immediate event.
+	 */
+	if (allow_direct) {
+		tevent_trace_queue_callback(ev,
+					    queue->list,
+					    TEVENT_EVENT_TRACE_BEFORE_HANDLER);
+		queue->list->triggered = true;
+		queue->list->trigger(queue->list->req,
+				     queue->list->private_data);
+		return e;
+	}
+
+	tevent_schedule_immediate(queue->immediate,
+				  queue->list->ev,
+				  tevent_queue_immediate_trigger,
+				  queue);
+
+	return e;
+}
+
+bool tevent_queue_add(struct tevent_queue *queue,
+		      struct tevent_context *ev,
+		      struct tevent_req *req,
+		      tevent_queue_trigger_fn_t trigger,
+		      void *private_data)
+{
+	struct tevent_queue_entry *e;
+
+	e = tevent_queue_add_internal(queue, ev, req,
+				      trigger, private_data, false);
+	if (e == NULL) {
+		return false;
+	}
+
+	return true;
+}
+
+struct tevent_queue_entry *tevent_queue_add_entry(
+					struct tevent_queue *queue,
+					struct tevent_context *ev,
+					struct tevent_req *req,
+					tevent_queue_trigger_fn_t trigger,
+					void *private_data)
+{
+	return tevent_queue_add_internal(queue, ev, req,
+					 trigger, private_data, false);
+}
+
+struct tevent_queue_entry *tevent_queue_add_optimize_empty(
+					struct tevent_queue *queue,
+					struct tevent_context *ev,
+					struct tevent_req *req,
+					tevent_queue_trigger_fn_t trigger,
+					void *private_data)
+{
+	return tevent_queue_add_internal(queue, ev, req,
+					 trigger, private_data, true);
+}
+
+void tevent_queue_entry_untrigger(struct tevent_queue_entry *entry)
+{
+	if (entry->queue->running) {
+		abort();
+	}
+
+	if (entry->queue->list != entry) {
+		abort();
+	}
+
+	entry->triggered = false;
+}
+
+void tevent_queue_start(struct tevent_queue *queue)
+{
+	if (queue->running) {
+		/* already started */
+		return;
+	}
+
+	queue->running = true;
+
+	if (!queue->list) {
+		return;
+	}
+
+	if (queue->list->triggered) {
+		return;
+	}
+
+	tevent_schedule_immediate(queue->immediate,
+				  queue->list->ev,
+				  tevent_queue_immediate_trigger,
+				  queue);
+}
+
+void tevent_queue_stop(struct tevent_queue *queue)
+{
+	queue->running = false;
+}
+
+size_t tevent_queue_length(struct tevent_queue *queue)
+{
+	return queue->length;
+}
+
+bool tevent_queue_running(struct tevent_queue *queue)
+{
+	return queue->running;
+}
+
+struct tevent_queue_wait_state {
+	uint8_t dummy;
+};
+
+static void tevent_queue_wait_trigger(struct tevent_req *req,
+				      void *private_data);
+
+struct tevent_req *tevent_queue_wait_send(TALLOC_CTX *mem_ctx,
+					  struct tevent_context *ev,
+					  struct tevent_queue *queue)
+{
+	struct tevent_req *req;
+	struct tevent_queue_wait_state *state;
+	bool ok;
+
+	req = tevent_req_create(mem_ctx, &state,
+				struct tevent_queue_wait_state);
+	if (req == NULL) {
+		return NULL;
+	}
+
+	ok = tevent_queue_add(queue, ev, req,
+			      tevent_queue_wait_trigger,
+			      NULL);
+	if (!ok) {
+		tevent_req_oom(req);
+		return tevent_req_post(req, ev);
+	}
+
+	return req;
+}
+
+static void tevent_queue_wait_trigger(struct tevent_req *req,
+					 void *private_data)
+{
+	tevent_req_done(req);
+}
+
+bool tevent_queue_wait_recv(struct tevent_req *req)
+{
+	enum tevent_req_state state;
+	uint64_t err;
+
+	if (tevent_req_is_error(req, &state, &err)) {
+		tevent_req_received(req);
+		return false;
+	}
+
+	tevent_req_received(req);
+	return true;
+}
+
+void tevent_queue_entry_set_tag(struct tevent_queue_entry *qe, uint64_t tag)
+{
+	if (qe == NULL) {
+		return;
+	}
+
+	qe->tag = tag;
+}
+
+uint64_t tevent_queue_entry_get_tag(const struct tevent_queue_entry *qe)
+{
+	if (qe == NULL) {
+		return 0;
+	}
+
+	return qe->tag;
+}
diff --git a/lib/tevent/tevent_req.c b/lib/tevent/tevent_req.c
new file mode 100644
index 0000000..7821d9a
--- /dev/null
+++ b/lib/tevent/tevent_req.c
@@ -0,0 +1,570 @@
+/*
+   Unix SMB/CIFS implementation.
+   Infrastructure for async requests
+   Copyright (C) Volker Lendecke 2008
+   Copyright (C) Stefan Metzmacher 2009
+
+     ** NOTE! The following LGPL license applies to the tevent
+     ** library. This does NOT imply that all of Samba is released
+     ** under the LGPL
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 3 of the License, or (at your option) any later version.
+
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with this library; if not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "replace.h"
+#include "tevent.h"
+#include "tevent_internal.h"
+#include "tevent_util.h"
+
+char *tevent_req_default_print(struct tevent_req *req, TALLOC_CTX *mem_ctx)
+{
+	return talloc_asprintf(mem_ctx,
+			       "tevent_req[%p/%s]: state[%d] error[%lld (0x%llX)] "
+			       " state[%s (%p)] timer[%p] finish[%s]",
+			       req, req->internal.create_location,
+			       req->internal.state,
+			       (unsigned long long)req->internal.error,
+			       (unsigned long long)req->internal.error,
+			       req->internal.private_type,
+			       req->data,
+			       req->internal.timer,
+			       req->internal.finish_location
+			       );
+}
+
+char *tevent_req_print(TALLOC_CTX *mem_ctx, struct tevent_req *req)
+{
+	if (req == NULL) {
+		return talloc_strdup(mem_ctx, "tevent_req[NULL]");
+	}
+
+	if (!req->private_print) {
+		return tevent_req_default_print(req, mem_ctx);
+	}
+
+	return req->private_print(req, mem_ctx);
+}
+
+static int tevent_req_destructor(struct tevent_req *req);
+
+struct tevent_req *_tevent_req_create(TALLOC_CTX *mem_ctx,
+				    void *pdata,
+				    size_t data_size,
+				    const char *type,
+				    const char *location)
+{
+	struct tevent_req *req;
+	struct tevent_req *parent;
+	void **ppdata = (void **)pdata;
+	void *data;
+	size_t payload;
+
+	payload = sizeof(struct tevent_immediate) + data_size;
+	if (payload < sizeof(struct tevent_immediate)) {
+		/* overflow */
+		return NULL;
+	}
+
+	req = talloc_pooled_object(
+		mem_ctx, struct tevent_req, 2,
+		sizeof(struct tevent_immediate) + data_size);
+	if (req == NULL) {
+		return NULL;
+	}
+
+	*req = (struct tevent_req) {
+		.internal = {
+			.private_type		= type,
+			.create_location	= location,
+			.state			= TEVENT_REQ_IN_PROGRESS,
+			.trigger		= tevent_create_immediate(req),
+		},
+	};
+
+	data = talloc_zero_size(req, data_size);
+
+	/*
+	 * No need to check for req->internal.trigger!=NULL or
+	 * data!=NULL, this can't fail: talloc_pooled_object has
+	 * already allocated sufficient memory.
+	 */
+
+	talloc_set_name_const(data, type);
+
+	req->data = data;
+
+	talloc_set_destructor(req, tevent_req_destructor);
+
+	parent = talloc_get_type(talloc_parent(mem_ctx), struct tevent_req);
+	if ((parent != NULL) && (parent->internal.profile != NULL)) {
+		bool ok = tevent_req_set_profile(req);
+
+		if (!ok) {
+			TALLOC_FREE(req);
+			return NULL;
+		}
+		req->internal.profile->parent = parent->internal.profile;
+		DLIST_ADD_END(parent->internal.profile->subprofiles,
+			      req->internal.profile);
+	}
+
+	*ppdata = data;
+	return req;
+}
+
+static int tevent_req_destructor(struct tevent_req *req)
+{
+	tevent_req_received(req);
+	return 0;
+}
+
+void _tevent_req_notify_callback(struct tevent_req *req, const char *location)
+{
+	req->internal.finish_location = location;
+	if (req->internal.defer_callback_ev) {
+		(void)tevent_req_post(req, req->internal.defer_callback_ev);
+		req->internal.defer_callback_ev = NULL;
+		return;
+	}
+	if (req->async.fn != NULL) {
+		req->async.fn(req);
+	}
+}
+
+static void tevent_req_cleanup(struct tevent_req *req)
+{
+	if (req->private_cleanup.fn == NULL) {
+		return;
+	}
+
+	if (req->private_cleanup.state >= req->internal.state) {
+		/*
+		 * Don't call the cleanup_function multiple times for the same
+		 * state recursively
+		 */
+		return;
+	}
+
+	req->private_cleanup.state = req->internal.state;
+	req->private_cleanup.fn(req, req->internal.state);
+}
+
+static void tevent_req_finish(struct tevent_req *req,
+			      enum tevent_req_state state,
+			      const char *location)
+{
+	struct tevent_req_profile *p;
+	/*
+	 * make sure we do not timeout after
+	 * the request was already finished
+	 */
+	TALLOC_FREE(req->internal.timer);
+
+	req->internal.state = state;
+	req->internal.finish_location = location;
+
+	tevent_req_cleanup(req);
+
+	p = req->internal.profile;
+
+	if (p != NULL) {
+		p->stop_location = location;
+		p->stop_time = tevent_timeval_current();
+		p->state = state;
+		p->user_error = req->internal.error;
+
+		if (p->parent != NULL) {
+			talloc_steal(p->parent, p);
+			req->internal.profile = NULL;
+		}
+	}
+
+	_tevent_req_notify_callback(req, location);
+}
+
+void _tevent_req_done(struct tevent_req *req,
+		      const char *location)
+{
+	tevent_req_finish(req, TEVENT_REQ_DONE, location);
+}
+
+bool _tevent_req_error(struct tevent_req *req,
+		       uint64_t error,
+		       const char *location)
+{
+	if (error == 0) {
+		return false;
+	}
+
+	req->internal.error = error;
+	tevent_req_finish(req, TEVENT_REQ_USER_ERROR, location);
+	return true;
+}
+
+void _tevent_req_oom(struct tevent_req *req, const char *location)
+{
+	tevent_req_finish(req, TEVENT_REQ_NO_MEMORY, location);
+}
+
+bool _tevent_req_nomem(const void *p,
+		       struct tevent_req *req,
+		       const char *location)
+{
+	if (p != NULL) {
+		return false;
+	}
+	_tevent_req_oom(req, location);
+	return true;
+}
+
+/**
+ * @internal
+ *
+ * @brief Immediate event callback.
+ *
+ * @param[in]  ev       The event context to use.
+ *
+ * @param[in]  im       The immediate event.
+ *
+ * @param[in]  priv     The async request to be finished.
+ */
+static void tevent_req_trigger(struct tevent_context *ev,
+			       struct tevent_immediate *im,
+			       void *private_data)
+{
+	struct tevent_req *req =
+		talloc_get_type_abort(private_data,
+		struct tevent_req);
+
+	tevent_req_finish(req, req->internal.state,
+			  req->internal.finish_location);
+}
+
+struct tevent_req *tevent_req_post(struct tevent_req *req,
+				   struct tevent_context *ev)
+{
+	tevent_schedule_immediate(req->internal.trigger,
+				  ev, tevent_req_trigger, req);
+	return req;
+}
+
+void tevent_req_defer_callback(struct tevent_req *req,
+			       struct tevent_context *ev)
+{
+	req->internal.defer_callback_ev = ev;
+}
+
+bool tevent_req_is_in_progress(struct tevent_req *req)
+{
+	if (req->internal.state == TEVENT_REQ_IN_PROGRESS) {
+		return true;
+	}
+
+	return false;
+}
+
+void tevent_req_received(struct tevent_req *req)
+{
+	talloc_set_destructor(req, NULL);
+
+	req->private_print = NULL;
+	req->private_cancel = NULL;
+
+	TALLOC_FREE(req->internal.trigger);
+	TALLOC_FREE(req->internal.timer);
+
+	req->internal.state = TEVENT_REQ_RECEIVED;
+
+	tevent_req_cleanup(req);
+
+	TALLOC_FREE(req->data);
+}
+
+bool tevent_req_poll(struct tevent_req *req,
+		     struct tevent_context *ev)
+{
+	while (tevent_req_is_in_progress(req)) {
+		int ret;
+
+		ret = tevent_loop_once(ev);
+		if (ret != 0) {
+			return false;
+		}
+	}
+
+	return true;
+}
+
+bool tevent_req_is_error(struct tevent_req *req, enum tevent_req_state *state,
+			uint64_t *error)
+{
+	if (req->internal.state == TEVENT_REQ_DONE) {
+		return false;
+	}
+	if (req->internal.state == TEVENT_REQ_USER_ERROR) {
+		*error = req->internal.error;
+	}
+	*state = req->internal.state;
+	return true;
+}
+
+static void tevent_req_timedout(struct tevent_context *ev,
+			       struct tevent_timer *te,
+			       struct timeval now,
+			       void *private_data)
+{
+	struct tevent_req *req =
+		talloc_get_type_abort(private_data,
+		struct tevent_req);
+
+	TALLOC_FREE(req->internal.timer);
+
+	tevent_req_finish(req, TEVENT_REQ_TIMED_OUT, __FUNCTION__);
+}
+
+bool tevent_req_set_endtime(struct tevent_req *req,
+			    struct tevent_context *ev,
+			    struct timeval endtime)
+{
+	TALLOC_FREE(req->internal.timer);
+
+	req->internal.timer = tevent_add_timer(ev, req, endtime,
+					       tevent_req_timedout,
+					       req);
+	if (tevent_req_nomem(req->internal.timer, req)) {
+		return false;
+	}
+
+	return true;
+}
+
+void tevent_req_reset_endtime(struct tevent_req *req)
+{
+	TALLOC_FREE(req->internal.timer);
+}
+
+void tevent_req_set_callback(struct tevent_req *req, tevent_req_fn fn, void *pvt)
+{
+	req->async.fn = fn;
+	req->async.private_data = pvt;
+}
+
+void *_tevent_req_callback_data(struct tevent_req *req)
+{
+	return req->async.private_data;
+}
+
+void *_tevent_req_data(struct tevent_req *req)
+{
+	return req->data;
+}
+
+void tevent_req_set_print_fn(struct tevent_req *req, tevent_req_print_fn fn)
+{
+	req->private_print = fn;
+}
+
+void tevent_req_set_cancel_fn(struct tevent_req *req, tevent_req_cancel_fn fn)
+{
+	req->private_cancel = fn;
+}
+
+bool _tevent_req_cancel(struct tevent_req *req, const char *location)
+{
+	if (req->private_cancel == NULL) {
+		return false;
+	}
+
+	return req->private_cancel(req);
+}
+
+void tevent_req_set_cleanup_fn(struct tevent_req *req, tevent_req_cleanup_fn fn)
+{
+	req->private_cleanup.state = req->internal.state;
+	req->private_cleanup.fn = fn;
+}
+
+static int tevent_req_profile_destructor(struct tevent_req_profile *p);
+
+bool tevent_req_set_profile(struct tevent_req *req)
+{
+	struct tevent_req_profile *p;
+
+	if (req->internal.profile != NULL) {
+		tevent_req_error(req, EINVAL);
+		return false;
+	}
+
+	p = tevent_req_profile_create(req);
+
+	if (tevent_req_nomem(p, req)) {
+		return false;
+	}
+
+	p->req_name = talloc_get_name(req->data);
+	p->start_location = req->internal.create_location;
+	p->start_time = tevent_timeval_current();
+
+	req->internal.profile = p;
+
+	return true;
+}
+
+static int tevent_req_profile_destructor(struct tevent_req_profile *p)
+{
+	if (p->parent != NULL) {
+		DLIST_REMOVE(p->parent->subprofiles, p);
+		p->parent = NULL;
+	}
+
+	while (p->subprofiles != NULL) {
+		p->subprofiles->parent = NULL;
+		DLIST_REMOVE(p->subprofiles, p->subprofiles);
+	}
+
+	return 0;
+}
+
+struct tevent_req_profile *tevent_req_move_profile(struct tevent_req *req,
+						   TALLOC_CTX *mem_ctx)
+{
+	return talloc_move(mem_ctx, &req->internal.profile);
+}
+
+const struct tevent_req_profile *tevent_req_get_profile(
+	struct tevent_req *req)
+{
+	return req->internal.profile;
+}
+
+void tevent_req_profile_get_name(const struct tevent_req_profile *profile,
+				 const char **req_name)
+{
+	if (req_name != NULL) {
+		*req_name = profile->req_name;
+	}
+}
+
+void tevent_req_profile_get_start(const struct tevent_req_profile *profile,
+				  const char **start_location,
+				  struct timeval *start_time)
+{
+	if (start_location != NULL) {
+		*start_location = profile->start_location;
+	}
+	if (start_time != NULL) {
+		*start_time = profile->start_time;
+	}
+}
+
+void tevent_req_profile_get_stop(const struct tevent_req_profile *profile,
+				 const char **stop_location,
+				 struct timeval *stop_time)
+{
+	if (stop_location != NULL) {
+		*stop_location = profile->stop_location;
+	}
+	if (stop_time != NULL) {
+		*stop_time = profile->stop_time;
+	}
+}
+
+void tevent_req_profile_get_status(const struct tevent_req_profile *profile,
+				   pid_t *pid,
+				   enum tevent_req_state *state,
+				   uint64_t *user_error)
+{
+	if (pid != NULL) {
+		*pid = profile->pid;
+	}
+	if (state != NULL) {
+		*state = profile->state;
+	}
+	if (user_error != NULL) {
+		*user_error = profile->user_error;
+	}
+}
+
+const struct tevent_req_profile *tevent_req_profile_get_subprofiles(
+	const struct tevent_req_profile *profile)
+{
+	return profile->subprofiles;
+}
+
+const struct tevent_req_profile *tevent_req_profile_next(
+	const struct tevent_req_profile *profile)
+{
+	return profile->next;
+}
+
+struct tevent_req_profile *tevent_req_profile_create(TALLOC_CTX *mem_ctx)
+{
+	struct tevent_req_profile *result;
+
+	result = talloc_zero(mem_ctx, struct tevent_req_profile);
+	if (result == NULL) {
+		return NULL;
+	}
+	talloc_set_destructor(result, tevent_req_profile_destructor);
+
+	return result;
+}
+
+bool tevent_req_profile_set_name(struct tevent_req_profile *profile,
+				 const char *req_name)
+{
+	profile->req_name = talloc_strdup(profile, req_name);
+	return (profile->req_name != NULL);
+}
+
+bool tevent_req_profile_set_start(struct tevent_req_profile *profile,
+				  const char *start_location,
+				  struct timeval start_time)
+{
+	profile->start_time = start_time;
+
+	profile->start_location = talloc_strdup(profile, start_location);
+	return (profile->start_location != NULL);
+}
+
+bool tevent_req_profile_set_stop(struct tevent_req_profile *profile,
+				 const char *stop_location,
+				 struct timeval stop_time)
+{
+	profile->stop_time = stop_time;
+
+	profile->stop_location = talloc_strdup(profile, stop_location);
+	return (profile->stop_location != NULL);
+}
+
+void tevent_req_profile_set_status(struct tevent_req_profile *profile,
+				   pid_t pid,
+				   enum tevent_req_state state,
+				   uint64_t user_error)
+{
+	profile->pid = pid;
+	profile->state = state;
+	profile->user_error = user_error;
+}
+
+void tevent_req_profile_append_sub(struct tevent_req_profile *parent_profile,
+				   struct tevent_req_profile **sub_profile)
+{
+	struct tevent_req_profile *sub;
+
+	sub = talloc_move(parent_profile, sub_profile);
+
+	sub->parent = parent_profile;
+	DLIST_ADD_END(parent_profile->subprofiles, sub);
+}
diff --git a/lib/tevent/tevent_signal.c b/lib/tevent/tevent_signal.c
new file mode 100644
index 0000000..eab3654
--- /dev/null
+++ b/lib/tevent/tevent_signal.c
@@ -0,0 +1,539 @@
+/*
+   Unix SMB/CIFS implementation.
+
+   common events code for signal events
+
+   Copyright (C) Andrew Tridgell	2007
+
+     ** NOTE! The following LGPL license applies to the tevent
+     ** library. This does NOT imply that all of Samba is released
+     ** under the LGPL
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 3 of the License, or (at your option) any later version.
+
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with this library; if not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "replace.h"
+#include "system/filesys.h"
+#include "system/wait.h"
+#define TEVENT_DEPRECATED 1
+#include "tevent.h"
+#include "tevent_internal.h"
+#include "tevent_util.h"
+
+/* maximum number of SA_SIGINFO signals to hold in the queue.
+  NB. This *MUST* be a power of 2, in order for the ring buffer
+  wrap to work correctly. Thanks to Petr Vandrovec <petr@vandrovec.name>
+  for this. */
+
+#define TEVENT_SA_INFO_QUEUE_COUNT 256
+
+size_t tevent_num_signals(void)
+{
+	return TEVENT_NUM_SIGNALS;
+}
+
+size_t tevent_sa_info_queue_count(void)
+{
+	return TEVENT_SA_INFO_QUEUE_COUNT;
+}
+
+struct tevent_sigcounter {
+	uint32_t count;
+	uint32_t seen;
+};
+
+#if defined(HAVE___SYNC_FETCH_AND_ADD)
+#define TEVENT_SIG_INCREMENT(s) __sync_fetch_and_add(&((s).count), 1)
+#elif defined(HAVE_ATOMIC_ADD_32)
+#define TEVENT_SIG_INCREMENT(s) atomic_add_32(&((s).count), 1)
+#else
+#define TEVENT_SIG_INCREMENT(s) (s).count++
+#endif
+#define TEVENT_SIG_SEEN(s, n) (s).seen += (n)
+#define TEVENT_SIG_PENDING(s) ((s).seen != (s).count)
+
+struct tevent_common_signal_list {
+	struct tevent_common_signal_list *prev, *next;
+	struct tevent_signal *se;
+};
+
+/*
+  the poor design of signals means that this table must be static global
+*/
+static struct tevent_sig_state {
+	struct tevent_common_signal_list *sig_handlers[TEVENT_NUM_SIGNALS+1];
+	struct sigaction *oldact[TEVENT_NUM_SIGNALS+1];
+	struct tevent_sigcounter signal_count[TEVENT_NUM_SIGNALS+1];
+	struct tevent_sigcounter got_signal;
+#ifdef SA_SIGINFO
+	/* with SA_SIGINFO we get quite a lot of info per signal */
+	siginfo_t *sig_info[TEVENT_NUM_SIGNALS+1];
+	struct tevent_sigcounter sig_blocked[TEVENT_NUM_SIGNALS+1];
+#endif
+} *sig_state;
+
+/*
+  return number of sigcounter events not processed yet
+*/
+static uint32_t tevent_sig_count(struct tevent_sigcounter s)
+{
+	return s.count - s.seen;
+}
+
+/*
+  signal handler - redirects to registered signals
+*/
+static void tevent_common_signal_handler(int signum)
+{
+	struct tevent_common_signal_list *sl;
+	struct tevent_context *ev = NULL;
+	int saved_errno = errno;
+
+	TEVENT_SIG_INCREMENT(sig_state->signal_count[signum]);
+	TEVENT_SIG_INCREMENT(sig_state->got_signal);
+
+	/* Write to each unique event context. */
+	for (sl = sig_state->sig_handlers[signum]; sl; sl = sl->next) {
+		if (sl->se->event_ctx && sl->se->event_ctx != ev) {
+			ev = sl->se->event_ctx;
+			tevent_common_wakeup(ev);
+		}
+	}
+
+	errno = saved_errno;
+}
+
+#ifdef SA_SIGINFO
+/*
+  signal handler with SA_SIGINFO - redirects to registered signals
+*/
+static void tevent_common_signal_handler_info(int signum, siginfo_t *info,
+					      void *uctx)
+{
+	uint32_t count = tevent_sig_count(sig_state->signal_count[signum]);
+	/* sig_state->signal_count[signum].seen % TEVENT_SA_INFO_QUEUE_COUNT
+	 * is the base of the unprocessed signals in the ringbuffer. */
+	uint32_t ofs = (sig_state->signal_count[signum].seen + count) %
+				TEVENT_SA_INFO_QUEUE_COUNT;
+	sig_state->sig_info[signum][ofs] = *info;
+
+	tevent_common_signal_handler(signum);
+
+	/* handle SA_SIGINFO */
+	if (count+1 == TEVENT_SA_INFO_QUEUE_COUNT) {
+		/* we've filled the info array - block this signal until
+		   these ones are delivered */
+#ifdef HAVE_UCONTEXT_T
+		/*
+		 * This is the only way for this to work.
+		 * By default signum is blocked inside this
+		 * signal handler using a temporary mask,
+		 * but what we really need to do now is
+		 * block it in the callers mask, so it
+		 * stays blocked when the temporary signal
+		 * handler mask is replaced when we return
+		 * from here. The callers mask can be found
+		 * in the ucontext_t passed in as the
+		 * void *uctx argument.
+		 */
+		ucontext_t *ucp = (ucontext_t *)uctx;
+		sigaddset(&ucp->uc_sigmask, signum);
+#else
+		/*
+		 * WARNING !!! WARNING !!!!
+		 *
+		 * This code doesn't work.
+		 * By default signum is blocked inside this
+		 * signal handler, but calling sigprocmask
+		 * modifies the temporary signal mask being
+		 * used *inside* this handler, which will be
+		 * replaced by the callers signal mask once
+		 * we return from here. See Samba
+		 * bug #9550 for details.
+		 */
+		sigset_t set;
+		sigemptyset(&set);
+		sigaddset(&set, signum);
+		sigprocmask(SIG_BLOCK, &set, NULL);
+#endif
+		TEVENT_SIG_INCREMENT(sig_state->sig_blocked[signum]);
+	}
+}
+#endif
+
+static int tevent_common_signal_list_destructor(struct tevent_common_signal_list *sl)
+{
+	if (sig_state->sig_handlers[sl->se->signum]) {
+		DLIST_REMOVE(sig_state->sig_handlers[sl->se->signum], sl);
+	}
+	return 0;
+}
+
+/*
+  destroy a signal event
+*/
+static int tevent_signal_destructor(struct tevent_signal *se)
+{
+	if (se->destroyed) {
+		tevent_common_check_double_free(se, "tevent_signal double free");
+		goto done;
+	}
+	se->destroyed = true;
+
+	TALLOC_FREE(se->additional_data);
+
+	if (se->event_ctx != NULL) {
+		tevent_trace_signal_callback(se->event_ctx, se, TEVENT_EVENT_TRACE_DETACH);
+		DLIST_REMOVE(se->event_ctx->signal_events, se);
+	}
+
+	if (sig_state->sig_handlers[se->signum] == NULL) {
+		/* restore old handler, if any */
+		if (sig_state->oldact[se->signum]) {
+			sigaction(se->signum, sig_state->oldact[se->signum], NULL);
+			TALLOC_FREE(sig_state->oldact[se->signum]);
+		}
+#ifdef SA_SIGINFO
+		if (se->sa_flags & SA_SIGINFO) {
+			if (sig_state->sig_info[se->signum]) {
+				TALLOC_FREE(sig_state->sig_info[se->signum]);
+			}
+		}
+#endif
+	}
+
+	se->event_ctx = NULL;
+done:
+	if (se->busy) {
+		return -1;
+	}
+	se->wrapper = NULL;
+
+	return 0;
+}
+
+/*
+  add a signal event
+  return NULL on failure (memory allocation error)
+*/
+struct tevent_signal *tevent_common_add_signal(struct tevent_context *ev,
+					       TALLOC_CTX *mem_ctx,
+					       int signum,
+					       int sa_flags,
+					       tevent_signal_handler_t handler,
+					       void *private_data,
+					       const char *handler_name,
+					       const char *location)
+{
+	struct tevent_signal *se;
+	struct tevent_common_signal_list *sl;
+	sigset_t set, oldset;
+	int ret;
+
+	ret = tevent_common_wakeup_init(ev);
+	if (ret != 0) {
+		errno = ret;
+		return NULL;
+	}
+
+	if (signum >= TEVENT_NUM_SIGNALS) {
+		errno = EINVAL;
+		return NULL;
+	}
+
+	/* the sig_state needs to be on a global context as it can last across
+	   multiple event contexts */
+	if (sig_state == NULL) {
+		sig_state = talloc_zero(NULL, struct tevent_sig_state);
+		if (sig_state == NULL) {
+			return NULL;
+		}
+	}
+
+	se = talloc_zero(mem_ctx?mem_ctx:ev, struct tevent_signal);
+	if (se == NULL) return NULL;
+
+	sl = talloc_zero(se, struct tevent_common_signal_list);
+	if (!sl) {
+		talloc_free(se);
+		return NULL;
+	}
+	sl->se = se;
+
+	*se = (struct tevent_signal) {
+		.event_ctx	= ev,
+		.signum		= signum,
+		.sa_flags	= sa_flags,
+		.handler	= handler,
+		.private_data	= private_data,
+		.handler_name	= handler_name,
+		.location	= location,
+		.additional_data= sl,
+	};
+
+	/* Ensure, no matter the destruction order, that we always have a handle on the global sig_state */
+	if (!talloc_reference(se, sig_state)) {
+		talloc_free(se);
+		return NULL;
+	}
+
+	/* only install a signal handler if not already installed */
+	if (sig_state->sig_handlers[signum] == NULL) {
+		struct sigaction act;
+		ZERO_STRUCT(act);
+		act.sa_handler = tevent_common_signal_handler;
+		act.sa_flags = sa_flags;
+#ifdef SA_SIGINFO
+		if (sa_flags & SA_SIGINFO) {
+			act.sa_handler   = NULL;
+			act.sa_sigaction = tevent_common_signal_handler_info;
+			if (sig_state->sig_info[signum] == NULL) {
+				sig_state->sig_info[signum] =
+					talloc_zero_array(sig_state, siginfo_t,
+							  TEVENT_SA_INFO_QUEUE_COUNT);
+				if (sig_state->sig_info[signum] == NULL) {
+					talloc_free(se);
+					return NULL;
+				}
+			}
+		}
+#endif
+		sig_state->oldact[signum] = talloc_zero(sig_state, struct sigaction);
+		if (sig_state->oldact[signum] == NULL) {
+			talloc_free(se);
+			return NULL;
+		}
+		if (sigaction(signum, &act, sig_state->oldact[signum]) == -1) {
+			talloc_free(sig_state->oldact[signum]);
+			sig_state->oldact[signum] = NULL;
+			talloc_free(se);
+			return NULL;
+		}
+	}
+
+	DLIST_ADD(se->event_ctx->signal_events, se);
+
+	/* Make sure the signal doesn't come in while we're mangling list. */
+	sigemptyset(&set);
+	sigaddset(&set, signum);
+	sigprocmask(SIG_BLOCK, &set, &oldset);
+	tevent_trace_signal_callback(se->event_ctx, se, TEVENT_EVENT_TRACE_ATTACH);
+	DLIST_ADD(sig_state->sig_handlers[signum], sl);
+	sigprocmask(SIG_SETMASK, &oldset, NULL);
+
+	talloc_set_destructor(se, tevent_signal_destructor);
+	talloc_set_destructor(sl, tevent_common_signal_list_destructor);
+
+	return se;
+}
+
+int tevent_common_invoke_signal_handler(struct tevent_signal *se,
+					int signum, int count, void *siginfo,
+					bool *removed)
+{
+	struct tevent_context *handler_ev = se->event_ctx;
+	bool remove = false;
+
+	if (removed != NULL) {
+		*removed = false;
+	}
+
+	if (se->event_ctx == NULL) {
+		return 0;
+	}
+
+	se->busy = true;
+	if (se->wrapper != NULL) {
+		handler_ev = se->wrapper->wrap_ev;
+
+		tevent_wrapper_push_use_internal(handler_ev, se->wrapper);
+		se->wrapper->ops->before_signal_handler(
+						se->wrapper->wrap_ev,
+						se->wrapper->private_state,
+						se->wrapper->main_ev,
+						se,
+						signum,
+						count,
+						siginfo,
+						se->handler_name,
+						se->location);
+	}
+	tevent_trace_signal_callback(se->event_ctx, se, TEVENT_EVENT_TRACE_BEFORE_HANDLER);
+	se->handler(handler_ev, se, signum, count, siginfo, se->private_data);
+	if (se->wrapper != NULL) {
+		se->wrapper->ops->after_signal_handler(
+						se->wrapper->wrap_ev,
+						se->wrapper->private_state,
+						se->wrapper->main_ev,
+						se,
+						signum,
+						count,
+						siginfo,
+						se->handler_name,
+						se->location);
+		tevent_wrapper_pop_use_internal(handler_ev, se->wrapper);
+	}
+	se->busy = false;
+
+#ifdef SA_RESETHAND
+	if (se->sa_flags & SA_RESETHAND) {
+		remove = true;
+	}
+#endif
+
+	if (se->destroyed) {
+		talloc_set_destructor(se, NULL);
+		remove = true;
+	}
+
+	if (remove) {
+		TALLOC_FREE(se);
+		if (removed != NULL) {
+			*removed = true;
+		}
+	}
+
+	return 0;
+}
+
+/*
+  check if a signal is pending
+  return != 0 if a signal was pending
+*/
+int tevent_common_check_signal(struct tevent_context *ev)
+{
+	int i;
+
+	if (!sig_state || !TEVENT_SIG_PENDING(sig_state->got_signal)) {
+		return 0;
+	}
+
+	for (i=0;i<TEVENT_NUM_SIGNALS+1;i++) {
+		struct tevent_common_signal_list *sl, *next;
+		struct tevent_sigcounter counter = sig_state->signal_count[i];
+		uint32_t count = tevent_sig_count(counter);
+		int ret;
+#ifdef SA_SIGINFO
+		/* Ensure we null out any stored siginfo_t entries
+		 * after processing for debugging purposes. */
+		bool clear_processed_siginfo = false;
+#endif
+
+		if (count == 0) {
+			continue;
+		}
+		for (sl=sig_state->sig_handlers[i];sl;sl=next) {
+			struct tevent_signal *se = sl->se;
+
+			next = sl->next;
+
+#ifdef SA_SIGINFO
+			if (se->sa_flags & SA_SIGINFO) {
+				uint32_t j;
+
+				clear_processed_siginfo = true;
+
+				for (j=0;j<count;j++) {
+					/* sig_state->signal_count[i].seen
+					 * % TEVENT_SA_INFO_QUEUE_COUNT is
+					 * the base position of the unprocessed
+					 * signals in the ringbuffer. */
+					uint32_t ofs = (counter.seen + j)
+						% TEVENT_SA_INFO_QUEUE_COUNT;
+					bool removed = false;
+
+					ret = tevent_common_invoke_signal_handler(
+						se, i, 1,
+						(void*)&sig_state->sig_info[i][ofs],
+						&removed);
+					if (ret != 0) {
+						tevent_abort(ev, "tevent_common_invoke_signal_handler() failed");
+					}
+					if (removed) {
+						break;
+					}
+				}
+				continue;
+			}
+#endif
+
+			ret = tevent_common_invoke_signal_handler(se, i, count,
+								  NULL, NULL);
+			if (ret != 0) {
+				tevent_abort(ev, "tevent_common_invoke_signal_handler() failed");
+			}
+		}
+
+#ifdef SA_SIGINFO
+		if (clear_processed_siginfo && sig_state->sig_info[i] != NULL) {
+			uint32_t j;
+			for (j=0;j<count;j++) {
+				uint32_t ofs = (counter.seen + j)
+					% TEVENT_SA_INFO_QUEUE_COUNT;
+				memset((void*)&sig_state->sig_info[i][ofs],
+					'\0',
+					sizeof(siginfo_t));
+			}
+		}
+#endif
+
+		TEVENT_SIG_SEEN(sig_state->signal_count[i], count);
+		TEVENT_SIG_SEEN(sig_state->got_signal, count);
+
+#ifdef SA_SIGINFO
+		if (TEVENT_SIG_PENDING(sig_state->sig_blocked[i])) {
+			/* We'd filled the queue, unblock the
+			   signal now the queue is empty again.
+			   Note we MUST do this after the
+			   TEVENT_SIG_SEEN(sig_state->signal_count[i], count)
+			   call to prevent a new signal running
+			   out of room in the sig_state->sig_info[i][]
+			   ring buffer. */
+			sigset_t set;
+			sigemptyset(&set);
+			sigaddset(&set, i);
+			TEVENT_SIG_SEEN(sig_state->sig_blocked[i],
+				 tevent_sig_count(sig_state->sig_blocked[i]));
+			sigprocmask(SIG_UNBLOCK, &set, NULL);
+		}
+#endif
+	}
+
+	return 1;
+}
+
+void tevent_cleanup_pending_signal_handlers(struct tevent_signal *se)
+{
+	tevent_signal_destructor(se);
+	talloc_set_destructor(se, NULL);
+	return;
+}
+
+void tevent_signal_set_tag(struct tevent_signal *se, uint64_t tag)
+{
+	if (se == NULL) {
+		return;
+	}
+
+	se->tag = tag;
+}
+
+uint64_t tevent_signal_get_tag(const struct tevent_signal *se)
+{
+	if (se == NULL) {
+		return 0;
+	}
+
+	return se->tag;
+}
diff --git a/lib/tevent/tevent_standard.c b/lib/tevent/tevent_standard.c
new file mode 100644
index 0000000..3872020
--- /dev/null
+++ b/lib/tevent/tevent_standard.c
@@ -0,0 +1,238 @@
+/* 
+   Unix SMB/CIFS implementation.
+   main select loop and event handling
+   Copyright (C) Stefan Metzmacher      2013
+   Copyright (C) Jeremy Allison         2013
+
+     ** NOTE! The following LGPL license applies to the tevent
+     ** library. This does NOT imply that all of Samba is released
+     ** under the LGPL
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 3 of the License, or (at your option) any later version.
+
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with this library; if not, see <http://www.gnu.org/licenses/>.
+*/
+
+/*
+  This is SAMBA's default event loop code
+
+  - we try to use epoll if configure detected support for it
+    otherwise we use poll()
+  - if epoll is broken on the system or the kernel doesn't support it
+    at runtime we fallback to poll()
+*/
+
+#include "replace.h"
+#include "tevent.h"
+#include "tevent_util.h"
+#include "tevent_internal.h"
+
+struct std_event_glue {
+	const struct tevent_ops *epoll_ops;
+	const struct tevent_ops *poll_ops;
+	struct tevent_ops *glue_ops;
+	bool fallback_replay;
+};
+
+static int std_event_context_init(struct tevent_context *ev);
+
+static const struct tevent_ops std_event_ops = {
+	.context_init           = std_event_context_init,
+};
+
+/*
+  If this function gets called. epoll failed at runtime.
+  Move us to using poll instead. If we return false here,
+  caller should abort().
+*/
+#ifdef HAVE_EPOLL
+static bool std_fallback_to_poll(struct tevent_context *ev, bool replay)
+{
+	void *glue_ptr = talloc_parent(ev->ops);
+	struct std_event_glue *glue =
+		talloc_get_type_abort(glue_ptr,
+		struct std_event_glue);
+	int ret;
+	struct tevent_fd *fde;
+
+	glue->fallback_replay = replay;
+
+	/* First switch all the ops to poll. */
+	glue->epoll_ops = NULL;
+
+	/*
+	 * Set custom_ops the same as poll.
+	 */
+	*glue->glue_ops = *glue->poll_ops;
+	glue->glue_ops->context_init = std_event_context_init;
+
+	/* Next initialize the poll backend. */
+	ret = glue->poll_ops->context_init(ev);
+	if (ret != 0) {
+		return false;
+	}
+
+	/*
+	 * Now we have to change all the existing file descriptor
+	 * events from the epoll backend to the poll backend.
+	 */
+	for (fde = ev->fd_events; fde; fde = fde->next) {
+		bool ok;
+
+		/* Re-add this event as a poll backend event. */
+		ok = tevent_poll_event_add_fd_internal(ev, fde);
+		if (!ok) {
+			return false;
+		}
+	}
+
+	return true;
+}
+#endif
+
+static int std_event_loop_once(struct tevent_context *ev, const char *location)
+{
+	void *glue_ptr = talloc_parent(ev->ops);
+	struct std_event_glue *glue =
+		talloc_get_type_abort(glue_ptr,
+		struct std_event_glue);
+	int ret;
+
+	ret = glue->epoll_ops->loop_once(ev, location);
+	/*
+	 * If the above hasn't panicked due to an epoll interface failure,
+	 * std_fallback_to_poll() wasn't called, and hasn't cleared epoll_ops to
+	 * signify fallback to poll_ops.
+	 */
+	if (glue->epoll_ops != NULL) {
+		/* No fallback */
+		return ret;
+	}
+
+	if (!glue->fallback_replay) {
+		/*
+		 * The problem happened while modifying an event.
+		 * An event handler was triggered in this case
+		 * and there is no need to call loop_once() again.
+		 */
+		return ret;
+	}
+
+	return glue->poll_ops->loop_once(ev, location);
+}
+
+static int std_event_loop_wait(struct tevent_context *ev, const char *location)
+{
+	void *glue_ptr = talloc_parent(ev->ops);
+	struct std_event_glue *glue =
+		talloc_get_type_abort(glue_ptr,
+		struct std_event_glue);
+	int ret;
+
+	ret = glue->epoll_ops->loop_wait(ev, location);
+	/*
+	 * If the above hasn't panicked due to an epoll interface failure,
+	 * std_fallback_to_poll() wasn't called, and hasn't cleared epoll_ops to
+	 * signify fallback to poll_ops.
+	 */
+	if (glue->epoll_ops != NULL) {
+		/* No fallback */
+		return ret;
+	}
+
+	return glue->poll_ops->loop_wait(ev, location);
+}
+/*
+  Initialize the epoll backend and allow it to call a
+  switch function if epoll fails at runtime.
+*/
+static int std_event_context_init(struct tevent_context *ev)
+{
+	struct std_event_glue *glue;
+	int ret;
+
+	/*
+	 * If this is the first initialization
+	 * we need to set up the allocated ops
+	 * pointers.
+	 */
+
+	if (ev->ops == &std_event_ops) {
+		glue = talloc_zero(ev, struct std_event_glue);
+		if (glue == NULL) {
+			return -1;
+		}
+
+		glue->epoll_ops = tevent_find_ops_byname("epoll");
+
+		glue->poll_ops = tevent_find_ops_byname("poll");
+		if (glue->poll_ops == NULL) {
+			return -1;
+		}
+
+		/*
+		 * Allocate space for our custom ops.
+		 * Allocate as a child of our epoll_ops pointer
+		 * so we can easily get to it using talloc_parent.
+		 */
+		glue->glue_ops = talloc_zero(glue, struct tevent_ops);
+		if (glue->glue_ops == NULL) {
+			talloc_free(glue);
+			return -1;
+		}
+
+		ev->ops = glue->glue_ops;
+	} else {
+		void *glue_ptr = talloc_parent(ev->ops);
+		glue = talloc_get_type_abort(glue_ptr, struct std_event_glue);
+	}
+
+	if (glue->epoll_ops != NULL) {
+		/*
+		 * Set custom_ops the same as epoll,
+		 * except re-init using std_event_context_init()
+		 * and use std_event_loop_once() to add the
+		 * ability to fallback to a poll backend on
+		 * epoll runtime error.
+		 */
+		*glue->glue_ops = *glue->epoll_ops;
+		glue->glue_ops->context_init = std_event_context_init;
+		glue->glue_ops->loop_once = std_event_loop_once;
+		glue->glue_ops->loop_wait = std_event_loop_wait;
+
+		ret = glue->epoll_ops->context_init(ev);
+		if (ret == -1) {
+			goto fallback;
+		}
+#ifdef HAVE_EPOLL
+		tevent_epoll_set_panic_fallback(ev, std_fallback_to_poll);
+#endif
+
+		return ret;
+	}
+
+fallback:
+	glue->epoll_ops = NULL;
+
+	/*
+	 * Set custom_ops the same as poll.
+	 */
+	*glue->glue_ops = *glue->poll_ops;
+	glue->glue_ops->context_init = std_event_context_init;
+
+	return glue->poll_ops->context_init(ev);
+}
+
+_PRIVATE_ bool tevent_standard_init(void)
+{
+	return tevent_register_backend("standard", &std_event_ops);
+}
diff --git a/lib/tevent/tevent_threads.c b/lib/tevent/tevent_threads.c
new file mode 100644
index 0000000..a89990f
--- /dev/null
+++ b/lib/tevent/tevent_threads.c
@@ -0,0 +1,601 @@
+/*
+   tevent event library.
+
+   Copyright (C) Jeremy Allison 2015
+
+     ** NOTE! The following LGPL license applies to the tevent
+     ** library. This does NOT imply that all of Samba is released
+     ** under the LGPL
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 3 of the License, or (at your option) any later version.
+
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with this library; if not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "replace.h"
+#include "system/filesys.h"
+#include "talloc.h"
+#include "tevent.h"
+#include "tevent_internal.h"
+#include "tevent_util.h"
+
+#ifdef HAVE_PTHREAD
+#include "system/threads.h"
+
+struct tevent_immediate_list {
+	struct tevent_immediate_list *next, *prev;
+	tevent_immediate_handler_t handler;
+	struct tevent_immediate *im;
+	void *private_ptr;
+};
+
+struct tevent_thread_proxy {
+	pthread_mutex_t mutex;
+	struct tevent_context *dest_ev_ctx;
+	int read_fd;
+	int write_fd;
+	struct tevent_fd *pipe_read_fde;
+	/* Pending events list. */
+	struct tevent_immediate_list *im_list;
+	/* Completed events list. */
+	struct tevent_immediate_list *tofree_im_list;
+	struct tevent_immediate *free_im;
+};
+
+static void free_im_list(struct tevent_immediate_list **pp_list_head)
+{
+	struct tevent_immediate_list *im_entry = NULL;
+	struct tevent_immediate_list *im_next = NULL;
+
+	for (im_entry = *pp_list_head; im_entry; im_entry = im_next) {
+		im_next = im_entry->next;
+		DLIST_REMOVE(*pp_list_head, im_entry);
+		TALLOC_FREE(im_entry);
+	}
+}
+
+static void free_list_handler(struct tevent_context *ev,
+				struct tevent_immediate *im,
+				void *private_ptr)
+{
+	struct tevent_thread_proxy *tp =
+		talloc_get_type_abort(private_ptr, struct tevent_thread_proxy);
+	int ret;
+
+	ret = pthread_mutex_lock(&tp->mutex);
+	if (ret != 0) {
+		abort();
+		/* Notreached. */
+		return;
+	}
+
+	free_im_list(&tp->tofree_im_list);
+
+	ret = pthread_mutex_unlock(&tp->mutex);
+	if (ret != 0) {
+		abort();
+		/* Notreached. */
+		return;
+	}
+}
+
+static void schedule_immediate_functions(struct tevent_thread_proxy *tp)
+{
+	struct tevent_immediate_list *im_entry = NULL;
+	struct tevent_immediate_list *im_next = NULL;
+
+	for (im_entry = tp->im_list; im_entry; im_entry = im_next) {
+		im_next = im_entry->next;
+		DLIST_REMOVE(tp->im_list, im_entry);
+
+		tevent_schedule_immediate(im_entry->im,
+					tp->dest_ev_ctx,
+					im_entry->handler,
+					im_entry->private_ptr);
+
+		/* Move from pending list to free list. */
+		DLIST_ADD(tp->tofree_im_list, im_entry);
+	}
+	if (tp->tofree_im_list != NULL) {
+		/*
+		 * Once the current immediate events
+		 * are processed, we need to reschedule
+		 * ourselves to free them. This works
+		 * as tevent_schedule_immediate()
+		 * always adds events to the *END* of
+		 * the immediate events list.
+		 */
+		tevent_schedule_immediate(tp->free_im,
+					tp->dest_ev_ctx,
+					free_list_handler,
+					tp);
+	}
+}
+
+static void pipe_read_handler(struct tevent_context *ev,
+				struct tevent_fd *fde,
+				uint16_t flags,
+				void *private_ptr)
+{
+	struct tevent_thread_proxy *tp =
+		talloc_get_type_abort(private_ptr, struct tevent_thread_proxy);
+	ssize_t len = 64;
+	int ret;
+
+	ret = pthread_mutex_lock(&tp->mutex);
+	if (ret != 0) {
+		abort();
+		/* Notreached. */
+		return;
+	}
+
+	/*
+	 * Clear out all data in the pipe. We
+	 * don't really care if this returns -1.
+	 */
+	while (len == 64) {
+		char buf[64];
+		len = read(tp->read_fd, buf, 64);
+	};
+
+	schedule_immediate_functions(tp);
+
+	ret = pthread_mutex_unlock(&tp->mutex);
+	if (ret != 0) {
+		abort();
+		/* Notreached. */
+		return;
+	}
+}
+
+static int tevent_thread_proxy_destructor(struct tevent_thread_proxy *tp)
+{
+	int ret;
+
+	ret = pthread_mutex_lock(&tp->mutex);
+	if (ret != 0) {
+		abort();
+		/* Notreached. */
+		return 0;
+	}
+
+	TALLOC_FREE(tp->pipe_read_fde);
+
+	if (tp->read_fd != -1) {
+		(void)close(tp->read_fd);
+		tp->read_fd = -1;
+	}
+	if (tp->write_fd != -1) {
+		(void)close(tp->write_fd);
+		tp->write_fd = -1;
+	}
+
+	/* Hmmm. It's probably an error if we get here with
+	   any non-NULL immediate entries.. */
+
+	free_im_list(&tp->im_list);
+	free_im_list(&tp->tofree_im_list);
+
+	TALLOC_FREE(tp->free_im);
+
+	ret = pthread_mutex_unlock(&tp->mutex);
+	if (ret != 0) {
+		abort();
+		/* Notreached. */
+		return 0;
+	}
+
+	ret = pthread_mutex_destroy(&tp->mutex);
+	if (ret != 0) {
+		abort();
+		/* Notreached. */
+		return 0;
+	}
+
+	return 0;
+}
+
+/*
+ * Create a struct that can be passed to other threads
+ * to allow them to signal the struct tevent_context *
+ * passed in.
+ */
+
+struct tevent_thread_proxy *tevent_thread_proxy_create(
+		struct tevent_context *dest_ev_ctx)
+{
+	int ret;
+	int pipefds[2];
+	struct tevent_thread_proxy *tp;
+
+	if (dest_ev_ctx->wrapper.glue != NULL) {
+		/*
+		 * stacking of wrappers is not supported
+		 */
+		tevent_debug(dest_ev_ctx->wrapper.glue->main_ev,
+			     TEVENT_DEBUG_FATAL,
+			     "%s() not allowed on a wrapper context\n",
+			     __func__);
+		errno = EINVAL;
+		return NULL;
+	}
+
+	tp = talloc_zero(dest_ev_ctx, struct tevent_thread_proxy);
+	if (tp == NULL) {
+		return NULL;
+	}
+
+	ret = pthread_mutex_init(&tp->mutex, NULL);
+	if (ret != 0) {
+		goto fail;
+	}
+
+	tp->dest_ev_ctx = dest_ev_ctx;
+	tp->read_fd = -1;
+	tp->write_fd = -1;
+
+	talloc_set_destructor(tp, tevent_thread_proxy_destructor);
+
+	ret = pipe(pipefds);
+	if (ret == -1) {
+		goto fail;
+	}
+
+	tp->read_fd = pipefds[0];
+	tp->write_fd = pipefds[1];
+
+	ret = ev_set_blocking(pipefds[0], false);
+	if (ret != 0) {
+		goto fail;
+	}
+	ret = ev_set_blocking(pipefds[1], false);
+	if (ret != 0) {
+		goto fail;
+	}
+	if (!ev_set_close_on_exec(pipefds[0])) {
+		goto fail;
+	}
+	if (!ev_set_close_on_exec(pipefds[1])) {
+		goto fail;
+	}
+
+	tp->pipe_read_fde = tevent_add_fd(dest_ev_ctx,
+				tp,
+				tp->read_fd,
+				TEVENT_FD_READ,
+				pipe_read_handler,
+				tp);
+	if (tp->pipe_read_fde == NULL) {
+		goto fail;
+	}
+
+	/*
+	 * Create an immediate event to free
+	 * completed lists.
+	 */
+	tp->free_im = tevent_create_immediate(tp);
+	if (tp->free_im == NULL) {
+		goto fail;
+	}
+
+	return tp;
+
+  fail:
+
+	TALLOC_FREE(tp);
+	return NULL;
+}
+
+/*
+ * This function schedules an immediate event to be called with argument
+ * *pp_private in the thread context of dest_ev_ctx. Caller doesn't
+ * wait for activation to take place, this is simply fire-and-forget.
+ *
+ * pp_im must be a pointer to an immediate event talloced on
+ * a context owned by the calling thread, or the NULL context.
+ * Ownership of *pp_im will be transfered to the tevent library.
+ *
+ * pp_private can be null, or contents of *pp_private must be
+ * talloc'ed memory on a context owned by the calling thread
+ * or the NULL context. If non-null, ownership of *pp_private will
+ * be transfered to the tevent library.
+ *
+ * If you want to return a message, have the destination use the
+ * same function call to send back to the caller.
+ */
+
+
+void tevent_thread_proxy_schedule(struct tevent_thread_proxy *tp,
+				  struct tevent_immediate **pp_im,
+				  tevent_immediate_handler_t handler,
+				  void *pp_private_data)
+{
+	struct tevent_immediate_list *im_entry;
+	int ret;
+	char c;
+	ssize_t written;
+
+	ret = pthread_mutex_lock(&tp->mutex);
+	if (ret != 0) {
+		abort();
+		/* Notreached. */
+		return;
+	}
+
+	if (tp->write_fd == -1) {
+		/* In the process of being destroyed. Ignore. */
+		goto end;
+	}
+
+	/* Create a new immediate_list entry. MUST BE ON THE NULL CONTEXT */
+	im_entry = talloc_zero(NULL, struct tevent_immediate_list);
+	if (im_entry == NULL) {
+		goto end;
+	}
+
+	im_entry->handler = handler;
+	im_entry->im = talloc_move(im_entry, pp_im);
+
+	if (pp_private_data != NULL) {
+		void **pptr = (void **)pp_private_data;
+		im_entry->private_ptr = talloc_move(im_entry, pptr);
+	}
+
+	DLIST_ADD(tp->im_list, im_entry);
+
+	/* And notify the dest_ev_ctx to wake up. */
+	c = '\0';
+	do {
+		written = write(tp->write_fd, &c, 1);
+	} while (written == -1 && errno == EINTR);
+
+  end:
+
+	ret = pthread_mutex_unlock(&tp->mutex);
+	if (ret != 0) {
+		abort();
+		/* Notreached. */
+	}
+}
+#else
+/* !HAVE_PTHREAD */
+struct tevent_thread_proxy *tevent_thread_proxy_create(
+		struct tevent_context *dest_ev_ctx)
+{
+	errno = ENOSYS;
+	return NULL;
+}
+
+void tevent_thread_proxy_schedule(struct tevent_thread_proxy *tp,
+				  struct tevent_immediate **pp_im,
+				  tevent_immediate_handler_t handler,
+				  void *pp_private_data)
+{
+	;
+}
+#endif
+
+static int tevent_threaded_context_destructor(
+	struct tevent_threaded_context *tctx)
+{
+	struct tevent_context *main_ev = tevent_wrapper_main_ev(tctx->event_ctx);
+	int ret;
+
+	if (main_ev != NULL) {
+		DLIST_REMOVE(main_ev->threaded_contexts, tctx);
+	}
+
+	/*
+	 * We have to coordinate with _tevent_threaded_schedule_immediate's
+	 * unlock of the event_ctx_mutex. We're in the main thread here,
+	 * and we can be scheduled before the helper thread finalizes its
+	 * call _tevent_threaded_schedule_immediate. This means we would
+	 * pthreadpool_destroy a locked mutex, which is illegal.
+	 */
+	ret = pthread_mutex_lock(&tctx->event_ctx_mutex);
+	if (ret != 0) {
+		abort();
+	}
+
+	ret = pthread_mutex_unlock(&tctx->event_ctx_mutex);
+	if (ret != 0) {
+		abort();
+	}
+
+	ret = pthread_mutex_destroy(&tctx->event_ctx_mutex);
+	if (ret != 0) {
+		abort();
+	}
+
+	return 0;
+}
+
+struct tevent_threaded_context *tevent_threaded_context_create(
+	TALLOC_CTX *mem_ctx, struct tevent_context *ev)
+{
+#ifdef HAVE_PTHREAD
+	struct tevent_context *main_ev = tevent_wrapper_main_ev(ev);
+	struct tevent_threaded_context *tctx;
+	int ret;
+
+	ret = tevent_common_wakeup_init(main_ev);
+	if (ret != 0) {
+		errno = ret;
+		return NULL;
+	}
+
+	tctx = talloc(mem_ctx, struct tevent_threaded_context);
+	if (tctx == NULL) {
+		return NULL;
+	}
+	tctx->event_ctx = ev;
+
+	ret = pthread_mutex_init(&tctx->event_ctx_mutex, NULL);
+	if (ret != 0) {
+		TALLOC_FREE(tctx);
+		return NULL;
+	}
+
+	DLIST_ADD(main_ev->threaded_contexts, tctx);
+	talloc_set_destructor(tctx, tevent_threaded_context_destructor);
+
+	return tctx;
+#else
+	errno = ENOSYS;
+	return NULL;
+#endif
+}
+
+static int tevent_threaded_schedule_immediate_destructor(struct tevent_immediate *im)
+{
+	if (im->event_ctx != NULL) {
+		abort();
+	}
+	return 0;
+}
+
+void _tevent_threaded_schedule_immediate(struct tevent_threaded_context *tctx,
+					 struct tevent_immediate *im,
+					 tevent_immediate_handler_t handler,
+					 void *private_data,
+					 const char *handler_name,
+					 const char *location)
+{
+#ifdef HAVE_PTHREAD
+	const char *create_location = im->create_location;
+	struct tevent_context *main_ev = NULL;
+	struct tevent_wrapper_glue *glue = NULL;
+	int ret, wakeup_fd;
+
+	ret = pthread_mutex_lock(&tctx->event_ctx_mutex);
+	if (ret != 0) {
+		abort();
+	}
+
+	if (tctx->event_ctx == NULL) {
+		/*
+		 * Our event context is already gone.
+		 */
+		ret = pthread_mutex_unlock(&tctx->event_ctx_mutex);
+		if (ret != 0) {
+			abort();
+		}
+		return;
+	}
+
+	glue = tctx->event_ctx->wrapper.glue;
+
+	if ((im->event_ctx != NULL) || (handler == NULL)) {
+		abort();
+	}
+	if (im->destroyed) {
+		abort();
+	}
+	if (im->busy) {
+		abort();
+	}
+
+	main_ev = tevent_wrapper_main_ev(tctx->event_ctx);
+
+	*im = (struct tevent_immediate) {
+		.event_ctx		= tctx->event_ctx,
+		.wrapper		= glue,
+		.handler		= handler,
+		.private_data		= private_data,
+		.handler_name		= handler_name,
+		.create_location	= create_location,
+		.schedule_location	= location,
+	};
+
+	/*
+	 * Make sure the event won't be destroyed while
+	 * it's part of the ev->scheduled_immediates list.
+	 * _tevent_schedule_immediate() will reset the destructor
+	 * in tevent_common_threaded_activate_immediate().
+	 */
+	talloc_set_destructor(im, tevent_threaded_schedule_immediate_destructor);
+
+	ret = pthread_mutex_lock(&main_ev->scheduled_mutex);
+	if (ret != 0) {
+		abort();
+	}
+
+	DLIST_ADD_END(main_ev->scheduled_immediates, im);
+	wakeup_fd = main_ev->wakeup_fd;
+
+	ret = pthread_mutex_unlock(&main_ev->scheduled_mutex);
+	if (ret != 0) {
+		abort();
+	}
+
+	ret = pthread_mutex_unlock(&tctx->event_ctx_mutex);
+	if (ret != 0) {
+		abort();
+	}
+
+	/*
+	 * We might want to wake up the main thread under the lock. We
+	 * had a slightly similar situation in pthreadpool, changed
+	 * with 1c4284c7395f23. This is not exactly the same, as the
+	 * wakeup is only a last-resort thing in case the main thread
+	 * is sleeping. Doing the wakeup under the lock can easily
+	 * lead to a contended mutex, which is much more expensive
+	 * than a noncontended one. So I'd opt for the lower footprint
+	 * initially. Maybe we have to change that later.
+	 */
+	tevent_common_wakeup_fd(wakeup_fd);
+#else
+	/*
+	 * tevent_threaded_context_create() returned NULL with ENOSYS...
+	 */
+	abort();
+#endif
+}
+
+void tevent_common_threaded_activate_immediate(struct tevent_context *ev)
+{
+#ifdef HAVE_PTHREAD
+	int ret;
+	ret = pthread_mutex_lock(&ev->scheduled_mutex);
+	if (ret != 0) {
+		abort();
+	}
+
+	while (ev->scheduled_immediates != NULL) {
+		struct tevent_immediate *im = ev->scheduled_immediates;
+		struct tevent_immediate copy = *im;
+
+		DLIST_REMOVE(ev->scheduled_immediates, im);
+
+		tevent_debug(ev, TEVENT_DEBUG_TRACE,
+			     "Schedule immediate event \"%s\": %p from thread into main\n",
+			     im->handler_name, im);
+		im->handler_name = NULL;
+		_tevent_schedule_immediate(im,
+					   ev,
+					   copy.handler,
+					   copy.private_data,
+					   copy.handler_name,
+					   copy.schedule_location);
+	}
+
+	ret = pthread_mutex_unlock(&ev->scheduled_mutex);
+	if (ret != 0) {
+		abort();
+	}
+#else
+	/*
+	 * tevent_threaded_context_create() returned NULL with ENOSYS...
+	 */
+	abort();
+#endif
+}
diff --git a/lib/tevent/tevent_timed.c b/lib/tevent/tevent_timed.c
new file mode 100644
index 0000000..67e39ed
--- /dev/null
+++ b/lib/tevent/tevent_timed.c
@@ -0,0 +1,477 @@
+/*
+   Unix SMB/CIFS implementation.
+
+   common events code for timed events
+
+   Copyright (C) Andrew Tridgell	2003-2006
+   Copyright (C) Stefan Metzmacher	2005-2009
+
+     ** NOTE! The following LGPL license applies to the tevent
+     ** library. This does NOT imply that all of Samba is released
+     ** under the LGPL
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 3 of the License, or (at your option) any later version.
+
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with this library; if not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "replace.h"
+#include "system/time.h"
+#define TEVENT_DEPRECATED 1
+#include "tevent.h"
+#include "tevent_internal.h"
+#include "tevent_util.h"
+
+/**
+  compare two timeval structures.
+  Return -1 if tv1 < tv2
+  Return 0 if tv1 == tv2
+  Return 1 if tv1 > tv2
+*/
+int tevent_timeval_compare(const struct timeval *tv1, const struct timeval *tv2)
+{
+	if (tv1->tv_sec  > tv2->tv_sec)  return 1;
+	if (tv1->tv_sec  < tv2->tv_sec)  return -1;
+	if (tv1->tv_usec > tv2->tv_usec) return 1;
+	if (tv1->tv_usec < tv2->tv_usec) return -1;
+	return 0;
+}
+
+/**
+  return a zero timeval
+*/
+struct timeval tevent_timeval_zero(void)
+{
+	struct timeval tv;
+	tv.tv_sec = 0;
+	tv.tv_usec = 0;
+	return tv;
+}
+
+/**
+  return a timeval for the current time
+*/
+struct timeval tevent_timeval_current(void)
+{
+	struct timeval tv;
+	gettimeofday(&tv, NULL);
+	return tv;
+}
+
+/**
+  return a timeval struct with the given elements
+*/
+struct timeval tevent_timeval_set(uint32_t secs, uint32_t usecs)
+{
+	struct timeval tv;
+	tv.tv_sec = secs;
+	tv.tv_usec = usecs;
+	return tv;
+}
+
+/**
+  return the difference between two timevals as a timeval
+  if tv1 comes after tv2, then return a zero timeval
+  (this is *tv2 - *tv1)
+*/
+struct timeval tevent_timeval_until(const struct timeval *tv1,
+				    const struct timeval *tv2)
+{
+	struct timeval t;
+	if (tevent_timeval_compare(tv1, tv2) >= 0) {
+		return tevent_timeval_zero();
+	}
+	t.tv_sec = tv2->tv_sec - tv1->tv_sec;
+	if (tv1->tv_usec > tv2->tv_usec) {
+		t.tv_sec--;
+		t.tv_usec = 1000000 - (tv1->tv_usec - tv2->tv_usec);
+	} else {
+		t.tv_usec = tv2->tv_usec - tv1->tv_usec;
+	}
+	return t;
+}
+
+/**
+  return true if a timeval is zero
+*/
+bool tevent_timeval_is_zero(const struct timeval *tv)
+{
+	return tv->tv_sec == 0 && tv->tv_usec == 0;
+}
+
+struct timeval tevent_timeval_add(const struct timeval *tv, uint32_t secs,
+				  uint32_t usecs)
+{
+	struct timeval tv2 = *tv;
+	tv2.tv_sec += secs;
+	tv2.tv_usec += usecs;
+	tv2.tv_sec += tv2.tv_usec / 1000000;
+	tv2.tv_usec = tv2.tv_usec % 1000000;
+
+	return tv2;
+}
+
+/**
+  return a timeval in the future with a specified offset
+*/
+struct timeval tevent_timeval_current_ofs(uint32_t secs, uint32_t usecs)
+{
+	struct timeval tv = tevent_timeval_current();
+	return tevent_timeval_add(&tv, secs, usecs);
+}
+
+/*
+  destroy a timed event
+*/
+static int tevent_common_timed_destructor(struct tevent_timer *te)
+{
+	if (te->destroyed) {
+		tevent_common_check_double_free(te, "tevent_timer double free");
+		goto done;
+	}
+	te->destroyed = true;
+
+	if (te->event_ctx == NULL) {
+		return 0;
+	}
+
+	tevent_debug(te->event_ctx, TEVENT_DEBUG_TRACE,
+		     "Destroying timer event %p \"%s\"\n",
+		     te, te->handler_name);
+
+	if (te->event_ctx->last_zero_timer == te) {
+		te->event_ctx->last_zero_timer = DLIST_PREV(te);
+	}
+
+	tevent_trace_timer_callback(te->event_ctx, te, TEVENT_EVENT_TRACE_DETACH);
+	DLIST_REMOVE(te->event_ctx->timer_events, te);
+
+	te->event_ctx = NULL;
+done:
+	if (te->busy) {
+		return -1;
+	}
+	te->wrapper = NULL;
+
+	return 0;
+}
+
+static void tevent_common_insert_timer(struct tevent_context *ev,
+				       struct tevent_timer *te,
+				       bool optimize_zero)
+{
+	struct tevent_timer *prev_te = NULL;
+
+	if (te->destroyed) {
+		tevent_abort(ev, "tevent_timer use after free");
+		return;
+	}
+
+	/* keep the list ordered */
+	if (optimize_zero && tevent_timeval_is_zero(&te->next_event)) {
+		/*
+		 * Some callers use zero tevent_timer
+		 * instead of tevent_immediate events.
+		 *
+		 * As these can happen very often,
+		 * we remember the last zero timer
+		 * in the list.
+		 */
+		prev_te = ev->last_zero_timer;
+		ev->last_zero_timer = te;
+	} else {
+		struct tevent_timer *cur_te;
+
+		/*
+		 * we traverse the list from the tail
+		 * because it's much more likely that
+		 * timers are added at the end of the list
+		 */
+		for (cur_te = DLIST_TAIL(ev->timer_events);
+		     cur_te != NULL;
+		     cur_te = DLIST_PREV(cur_te))
+		{
+			int ret;
+
+			/*
+			 * if the new event comes before the current
+			 * we continue searching
+			 */
+			ret = tevent_timeval_compare(&te->next_event,
+						     &cur_te->next_event);
+			if (ret < 0) {
+				continue;
+			}
+
+			break;
+		}
+
+		prev_te = cur_te;
+	}
+
+	tevent_trace_timer_callback(te->event_ctx, te, TEVENT_EVENT_TRACE_ATTACH);
+	DLIST_ADD_AFTER(ev->timer_events, te, prev_te);
+}
+
+/*
+  add a timed event
+  return NULL on failure (memory allocation error)
+*/
+static struct tevent_timer *tevent_common_add_timer_internal(
+					struct tevent_context *ev,
+					TALLOC_CTX *mem_ctx,
+					struct timeval next_event,
+					tevent_timer_handler_t handler,
+					void *private_data,
+					const char *handler_name,
+					const char *location,
+					bool optimize_zero)
+{
+	struct tevent_timer *te;
+
+	te = talloc(mem_ctx?mem_ctx:ev, struct tevent_timer);
+	if (te == NULL) return NULL;
+
+	*te = (struct tevent_timer) {
+		.event_ctx	= ev,
+		.next_event	= next_event,
+		.handler	= handler,
+		.private_data	= private_data,
+		.handler_name	= handler_name,
+		.location	= location,
+	};
+
+	if (ev->timer_events == NULL) {
+		ev->last_zero_timer = NULL;
+	}
+
+	tevent_common_insert_timer(ev, te, optimize_zero);
+
+	talloc_set_destructor(te, tevent_common_timed_destructor);
+
+
+	tevent_debug(ev, TEVENT_DEBUG_TRACE,
+		     "Added timed event \"%s\": %p\n",
+		     handler_name, te);
+	return te;
+}
+
+struct tevent_timer *tevent_common_add_timer(struct tevent_context *ev,
+					     TALLOC_CTX *mem_ctx,
+					     struct timeval next_event,
+					     tevent_timer_handler_t handler,
+					     void *private_data,
+					     const char *handler_name,
+					     const char *location)
+{
+	/*
+	 * do not use optimization, there are broken Samba
+	 * versions which use tevent_common_add_timer()
+	 * without using tevent_common_loop_timer_delay(),
+	 * it just uses DLIST_REMOVE(ev->timer_events, te)
+	 * and would leave ev->last_zero_timer behind.
+	 */
+	return tevent_common_add_timer_internal(ev, mem_ctx, next_event,
+						handler, private_data,
+						handler_name, location,
+						false);
+}
+
+struct tevent_timer *tevent_common_add_timer_v2(struct tevent_context *ev,
+						TALLOC_CTX *mem_ctx,
+					        struct timeval next_event,
+					        tevent_timer_handler_t handler,
+					        void *private_data,
+					        const char *handler_name,
+					        const char *location)
+{
+	/*
+	 * Here we turn on last_zero_timer optimization
+	 */
+	return tevent_common_add_timer_internal(ev, mem_ctx, next_event,
+						handler, private_data,
+						handler_name, location,
+						true);
+}
+
+void tevent_update_timer(struct tevent_timer *te, struct timeval next_event)
+{
+	struct tevent_context *ev = te->event_ctx;
+
+	if (ev->last_zero_timer == te) {
+		te->event_ctx->last_zero_timer = DLIST_PREV(te);
+	}
+	tevent_trace_timer_callback(te->event_ctx, te, TEVENT_EVENT_TRACE_DETACH);
+	DLIST_REMOVE(ev->timer_events, te);
+
+	te->next_event = next_event;
+
+	/*
+	 * Not doing the zero_timer optimization. This is for new code
+	 * that should know about immediates.
+	 */
+	tevent_common_insert_timer(ev, te, false);
+}
+
+int tevent_common_invoke_timer_handler(struct tevent_timer *te,
+				       struct timeval current_time,
+				       bool *removed)
+{
+	struct tevent_context *handler_ev = te->event_ctx;
+
+	if (removed != NULL) {
+		*removed = false;
+	}
+
+	if (te->event_ctx == NULL) {
+		return 0;
+	}
+
+	/*
+	 * We need to remove the timer from the list before calling the
+	 * handler because in a semi-async inner event loop called from the
+	 * handler we don't want to come across this event again -- vl
+	 */
+	if (te->event_ctx->last_zero_timer == te) {
+		te->event_ctx->last_zero_timer = DLIST_PREV(te);
+	}
+	DLIST_REMOVE(te->event_ctx->timer_events, te);
+
+	tevent_debug(te->event_ctx, TEVENT_DEBUG_TRACE,
+		     "Running timer event %p \"%s\"\n",
+		     te, te->handler_name);
+
+	/*
+	 * If the timed event was registered for a zero current_time,
+	 * then we pass a zero timeval here too! To avoid the
+	 * overhead of gettimeofday() calls.
+	 *
+	 * otherwise we pass the current time
+	 */
+	te->busy = true;
+	if (te->wrapper != NULL) {
+		handler_ev = te->wrapper->wrap_ev;
+
+		tevent_wrapper_push_use_internal(handler_ev, te->wrapper);
+		te->wrapper->ops->before_timer_handler(
+					te->wrapper->wrap_ev,
+					te->wrapper->private_state,
+					te->wrapper->main_ev,
+					te,
+					te->next_event,
+					current_time,
+					te->handler_name,
+					te->location);
+	}
+	tevent_trace_timer_callback(te->event_ctx, te, TEVENT_EVENT_TRACE_BEFORE_HANDLER);
+	te->handler(handler_ev, te, current_time, te->private_data);
+	if (te->wrapper != NULL) {
+		te->wrapper->ops->after_timer_handler(
+					te->wrapper->wrap_ev,
+					te->wrapper->private_state,
+					te->wrapper->main_ev,
+					te,
+					te->next_event,
+					current_time,
+					te->handler_name,
+					te->location);
+		tevent_wrapper_pop_use_internal(handler_ev, te->wrapper);
+	}
+	te->busy = false;
+
+	tevent_debug(te->event_ctx, TEVENT_DEBUG_TRACE,
+		     "Ending timer event %p \"%s\"\n",
+		     te, te->handler_name);
+
+	/* The callback was already called when freed from the handler. */
+	if (!te->destroyed) {
+		tevent_trace_timer_callback(te->event_ctx, te, TEVENT_EVENT_TRACE_DETACH);
+	}
+
+	te->wrapper = NULL;
+	te->event_ctx = NULL;
+	talloc_set_destructor(te, NULL);
+	TALLOC_FREE(te);
+
+	if (removed != NULL) {
+		*removed = true;
+	}
+
+	return 0;
+}
+/*
+  do a single event loop using the events defined in ev
+
+  return the delay until the next timed event,
+  or zero if a timed event was triggered
+*/
+struct timeval tevent_common_loop_timer_delay(struct tevent_context *ev)
+{
+	struct timeval current_time = tevent_timeval_zero();
+	struct tevent_timer *te = ev->timer_events;
+	int ret;
+
+	if (!te) {
+		/* have a default tick time of 30 seconds. This guarantees
+		   that code that uses its own timeout checking will be
+		   able to proceed eventually */
+		return tevent_timeval_set(30, 0);
+	}
+
+	/*
+	 * work out the right timeout for the next timed event
+	 *
+	 * avoid the syscall to gettimeofday() if the timed event should
+	 * be triggered directly
+	 *
+	 * if there's a delay till the next timed event, we're done
+	 * with just returning the delay
+	 */
+	if (!tevent_timeval_is_zero(&te->next_event)) {
+		struct timeval delay;
+
+		current_time = tevent_timeval_current();
+
+		delay = tevent_timeval_until(&current_time, &te->next_event);
+		if (!tevent_timeval_is_zero(&delay)) {
+			return delay;
+		}
+	}
+
+	/*
+	 * ok, we have a timed event that we'll process ...
+	 */
+	ret = tevent_common_invoke_timer_handler(te, current_time, NULL);
+	if (ret != 0) {
+		tevent_abort(ev, "tevent_common_invoke_timer_handler() failed");
+	}
+
+	return tevent_timeval_zero();
+}
+
+void tevent_timer_set_tag(struct tevent_timer *te, uint64_t tag)
+{
+	if (te == NULL) {
+		return;
+	}
+
+	te->tag = tag;
+}
+
+uint64_t tevent_timer_get_tag(const struct tevent_timer *te)
+{
+	if (te == NULL) {
+		return 0;
+	}
+
+	return te->tag;
+}
diff --git a/lib/tevent/tevent_util.c b/lib/tevent/tevent_util.c
new file mode 100644
index 0000000..7519e11
--- /dev/null
+++ b/lib/tevent/tevent_util.c
@@ -0,0 +1,77 @@
+/*
+   Unix SMB/CIFS implementation.
+
+   Copyright (C) Andrew Tridgell 2005
+   Copyright (C) Jelmer Vernooij 2005
+
+     ** NOTE! The following LGPL license applies to the tevent
+     ** library. This does NOT imply that all of Samba is released
+     ** under the LGPL
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 3 of the License, or (at your option) any later version.
+
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with this library; if not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "replace.h"
+#include "talloc.h"
+#include "tevent.h"
+#include "tevent_internal.h"
+#include "tevent_util.h"
+#include <fcntl.h>
+
+/**
+ Set a fd into blocking/nonblocking mode. Uses POSIX O_NONBLOCK if available,
+ else
+  if SYSV use O_NDELAY
+  if BSD use FNDELAY
+**/
+
+int ev_set_blocking(int fd, bool set)
+{
+	int val;
+#ifdef O_NONBLOCK
+#define FLAG_TO_SET O_NONBLOCK
+#else
+#ifdef SYSV
+#define FLAG_TO_SET O_NDELAY
+#else /* BSD */
+#define FLAG_TO_SET FNDELAY
+#endif
+#endif
+
+	if((val = fcntl(fd, F_GETFL, 0)) == -1)
+		return -1;
+	if(set) /* Turn blocking on - ie. clear nonblock flag */
+		val &= ~FLAG_TO_SET;
+	else
+		val |= FLAG_TO_SET;
+	return fcntl( fd, F_SETFL, val);
+#undef FLAG_TO_SET
+}
+
+bool ev_set_close_on_exec(int fd)
+{
+#ifdef FD_CLOEXEC
+	int val;
+
+	val = fcntl(fd, F_GETFD, 0);
+	if (val >= 0) {
+		val |= FD_CLOEXEC;
+		val = fcntl(fd, F_SETFD, val);
+		if (val != -1) {
+			return true;
+		}
+	}
+#endif
+	return false;
+}
diff --git a/lib/tevent/tevent_util.h b/lib/tevent/tevent_util.h
new file mode 100644
index 0000000..128c231
--- /dev/null
+++ b/lib/tevent/tevent_util.h
@@ -0,0 +1,183 @@
+/*
+   Unix SMB/CIFS implementation.
+
+   Copyright (C) Andrew Tridgell 1998-2010
+   Copyright (C) Jelmer Vernooij 2005
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/* To use these macros you must have a structure containing a next and
+   prev pointer */
+
+#ifndef _DLINKLIST_H
+#define _DLINKLIST_H
+
+/*
+  February 2010 - changed list format to have a prev pointer from the
+  list head. This makes DLIST_ADD_END() O(1) even though we only have
+  one list pointer.
+
+  The scheme is as follows:
+
+     1) with no entries in the list:
+          list_head == NULL
+
+     2) with 1 entry in the list:
+          list_head->next == NULL
+          list_head->prev == list_head
+
+     3) with 2 entries in the list:
+          list_head->next == element2
+          list_head->prev == element2
+	  element2->prev == list_head
+	  element2->next == NULL
+
+     4) with N entries in the list:
+          list_head->next == element2
+          list_head->prev == elementN
+	  elementN->prev == element{N-1}
+	  elementN->next == NULL
+
+  This allows us to find the tail of the list by using
+  list_head->prev, which means we can add to the end of the list in
+  O(1) time
+ */
+
+
+/*
+   add an element at the front of a list
+*/
+#define DLIST_ADD(list, p) \
+do { \
+        if (!(list)) { \
+		(p)->prev = (list) = (p);  \
+		(p)->next = NULL; \
+	} else { \
+		(p)->prev = (list)->prev; \
+		(list)->prev = (p); \
+		(p)->next = (list); \
+		(list) = (p); \
+	} \
+} while (0)
+
+/*
+   remove an element from a list
+   Note that the element doesn't have to be in the list. If it
+   isn't then this is a no-op
+*/
+#define DLIST_REMOVE(list, p) \
+do { \
+	if ((p) == (list)) { \
+		if ((p)->next) (p)->next->prev = (p)->prev; \
+		(list) = (p)->next; \
+	} else if ((p)->prev && (list) && (p) == (list)->prev) {	\
+		(p)->prev->next = NULL; \
+		(list)->prev = (p)->prev; \
+	} else { \
+		if ((p)->prev) (p)->prev->next = (p)->next; \
+		if ((p)->next) (p)->next->prev = (p)->prev; \
+	} \
+	if ((p) != (list)) (p)->next = (p)->prev = NULL;	\
+} while (0)
+
+/*
+   find the head of the list given any element in it.
+   Note that this costs O(N), so you should avoid this macro
+   if at all possible!
+*/
+#define DLIST_HEAD(p, result_head) \
+do { \
+       (result_head) = (p); \
+       while (DLIST_PREV(result_head)) (result_head) = (result_head)->prev; \
+} while(0)
+
+/* return the last element in the list */
+#define DLIST_TAIL(list) ((list)?(list)->prev:NULL)
+
+/* return the previous element in the list. */
+#define DLIST_PREV(p) (((p)->prev && (p)->prev->next != NULL)?(p)->prev:NULL)
+
+/* insert 'p' after the given element 'el' in a list. If el is NULL then
+   this is the same as a DLIST_ADD() */
+#define DLIST_ADD_AFTER(list, p, el) \
+do { \
+        if (!(list) || !(el)) { \
+		DLIST_ADD(list, p); \
+	} else { \
+		(p)->prev = (el);   \
+		(p)->next = (el)->next;		\
+		(el)->next = (p);		\
+		if ((p)->next) (p)->next->prev = (p);	\
+		if ((list)->prev == (el)) (list)->prev = (p); \
+	}\
+} while (0)
+
+
+/*
+   add to the end of a list.
+*/
+#define DLIST_ADD_END(list, p) \
+do { \
+	if (!(list)) { \
+		DLIST_ADD(list, p); \
+	} else { \
+		DLIST_ADD_AFTER(list, p, (list)->prev); \
+	} \
+} while (0)
+
+/* promote an element to the front of a list */
+#define DLIST_PROMOTE(list, p) \
+do { \
+          DLIST_REMOVE(list, p); \
+          DLIST_ADD(list, p); \
+} while (0)
+
+/*
+   demote an element to the end of a list.
+*/
+#define DLIST_DEMOTE(list, p) \
+do { \
+	DLIST_REMOVE(list, p); \
+	DLIST_ADD_END(list, p); \
+} while (0)
+
+/*
+   concatenate two lists - putting all elements of the 2nd list at the
+   end of the first list.
+*/
+#define DLIST_CONCATENATE(list1, list2) \
+do { \
+	if (!(list1)) { \
+		(list1) = (list2); \
+	} else { \
+		(list1)->prev->next = (list2); \
+		if (list2) { \
+			void *_tmplist = (void *)(list1)->prev; \
+			(list1)->prev = (list2)->prev; \
+			(list2)->prev = _tmplist; \
+		} \
+	} \
+} while (0)
+
+#endif /* _DLINKLIST_H */
+
+int ev_set_blocking(int fd, bool set);
+bool ev_set_close_on_exec(int fd);
+
+/* Defined here so we can build against older talloc versions that don't
+ * have this define yet. */
+#ifndef TALLOC_FREE
+#define TALLOC_FREE(ctx) do { talloc_free(ctx); ctx=NULL; } while(0)
+#endif
diff --git a/lib/tevent/tevent_wakeup.c b/lib/tevent/tevent_wakeup.c
new file mode 100644
index 0000000..e217f33
--- /dev/null
+++ b/lib/tevent/tevent_wakeup.c
@@ -0,0 +1,67 @@
+/*
+   Unix SMB/CIFS implementation.
+   Infrastructure for async requests
+   Copyright (C) Volker Lendecke 2008
+   Copyright (C) Stefan Metzmacher 2009
+
+     ** NOTE! The following LGPL license applies to the tevent
+     ** library. This does NOT imply that all of Samba is released
+     ** under the LGPL
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 3 of the License, or (at your option) any later version.
+
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with this library; if not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "replace.h"
+#include "tevent.h"
+#include "tevent_internal.h"
+#include "tevent_util.h"
+
+struct tevent_wakeup_state {
+	struct timeval wakeup_time;
+};
+
+struct tevent_req *tevent_wakeup_send(TALLOC_CTX *mem_ctx,
+				      struct tevent_context *ev,
+				      struct timeval wakeup_time)
+{
+	struct tevent_req *req;
+	struct tevent_wakeup_state *state;
+
+	req = tevent_req_create(mem_ctx, &state,
+				struct tevent_wakeup_state);
+	if (!req) {
+		return NULL;
+	}
+	state->wakeup_time = wakeup_time;
+
+	if (!tevent_req_set_endtime(req, ev, wakeup_time)) {
+		return tevent_req_post(req, ev);
+	}
+	return req;
+}
+
+bool tevent_wakeup_recv(struct tevent_req *req)
+{
+	enum tevent_req_state state;
+	uint64_t error;
+
+	if (tevent_req_is_error(req, &state, &error)) {
+		if (state == TEVENT_REQ_TIMED_OUT) {
+			return true;
+		}
+	}
+
+	return false;
+}
+
diff --git a/lib/tevent/tevent_wrapper.c b/lib/tevent/tevent_wrapper.c
new file mode 100644
index 0000000..a0e915f
--- /dev/null
+++ b/lib/tevent/tevent_wrapper.c
@@ -0,0 +1,571 @@
+/*
+   Infrastructure for event context wrappers
+
+   Copyright (C) Stefan Metzmacher 2014
+
+     ** NOTE! The following LGPL license applies to the tevent
+     ** library. This does NOT imply that all of Samba is released
+     ** under the LGPL
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 3 of the License, or (at your option) any later version.
+
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with this library; if not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "replace.h"
+#ifdef HAVE_PTHREAD
+#include "system/threads.h"
+#endif
+#define TEVENT_DEPRECATED 1
+#include "tevent.h"
+#include "tevent_internal.h"
+#include "tevent_util.h"
+
+static int tevent_wrapper_glue_context_init(struct tevent_context *ev)
+{
+	tevent_abort(ev, "tevent_wrapper_glue_context_init() called");
+	errno = ENOSYS;
+	return -1;
+}
+
+static struct tevent_fd *tevent_wrapper_glue_add_fd(struct tevent_context *ev,
+						    TALLOC_CTX *mem_ctx,
+						    int fd, uint16_t flags,
+						    tevent_fd_handler_t handler,
+						    void *private_data,
+						    const char *handler_name,
+						    const char *location)
+{
+	struct tevent_wrapper_glue *glue = ev->wrapper.glue;
+	struct tevent_fd *fde = NULL;
+
+	if (glue->destroyed) {
+		tevent_abort(ev, "add_fd wrapper use after free");
+		return NULL;
+	}
+
+	if (glue->main_ev == NULL) {
+		errno = EINVAL;
+		return NULL;
+	}
+
+	fde = _tevent_add_fd(glue->main_ev, mem_ctx, fd, flags,
+			     handler, private_data,
+			     handler_name, location);
+	if (fde == NULL) {
+		return NULL;
+	}
+
+	fde->wrapper = glue;
+
+	return fde;
+}
+
+static struct tevent_timer *tevent_wrapper_glue_add_timer(struct tevent_context *ev,
+							  TALLOC_CTX *mem_ctx,
+							  struct timeval next_event,
+							  tevent_timer_handler_t handler,
+							  void *private_data,
+							  const char *handler_name,
+							  const char *location)
+{
+	struct tevent_wrapper_glue *glue = ev->wrapper.glue;
+	struct tevent_timer *te = NULL;
+
+	if (glue->destroyed) {
+		tevent_abort(ev, "add_timer wrapper use after free");
+		return NULL;
+	}
+
+	if (glue->main_ev == NULL) {
+		errno = EINVAL;
+		return NULL;
+	}
+
+	te = _tevent_add_timer(glue->main_ev, mem_ctx, next_event,
+			       handler, private_data,
+			       handler_name, location);
+	if (te == NULL) {
+		return NULL;
+	}
+
+	te->wrapper = glue;
+
+	return te;
+}
+
+static void tevent_wrapper_glue_schedule_immediate(struct tevent_immediate *im,
+						   struct tevent_context *ev,
+						   tevent_immediate_handler_t handler,
+						   void *private_data,
+						   const char *handler_name,
+						   const char *location)
+{
+	struct tevent_wrapper_glue *glue = ev->wrapper.glue;
+
+	if (glue->destroyed) {
+		tevent_abort(ev, "scheduke_immediate wrapper use after free");
+		return;
+	}
+
+	if (glue->main_ev == NULL) {
+		tevent_abort(ev, location);
+		errno = EINVAL;
+		return;
+	}
+
+	_tevent_schedule_immediate(im, glue->main_ev,
+				   handler, private_data,
+				   handler_name, location);
+
+	im->wrapper = glue;
+
+	return;
+}
+
+static struct tevent_signal *tevent_wrapper_glue_add_signal(struct tevent_context *ev,
+							    TALLOC_CTX *mem_ctx,
+							    int signum, int sa_flags,
+							    tevent_signal_handler_t handler,
+							    void *private_data,
+							    const char *handler_name,
+							    const char *location)
+{
+	struct tevent_wrapper_glue *glue = ev->wrapper.glue;
+	struct tevent_signal *se = NULL;
+
+	if (glue->destroyed) {
+		tevent_abort(ev, "add_signal wrapper use after free");
+		return NULL;
+	}
+
+	if (glue->main_ev == NULL) {
+		errno = EINVAL;
+		return NULL;
+	}
+
+	se = _tevent_add_signal(glue->main_ev, mem_ctx,
+				signum, sa_flags,
+				handler, private_data,
+				handler_name, location);
+	if (se == NULL) {
+		return NULL;
+	}
+
+	se->wrapper = glue;
+
+	return se;
+}
+
+static int tevent_wrapper_glue_loop_once(struct tevent_context *ev, const char *location)
+{
+	tevent_abort(ev, "tevent_wrapper_glue_loop_once() called");
+	errno = ENOSYS;
+	return -1;
+}
+
+static int tevent_wrapper_glue_loop_wait(struct tevent_context *ev, const char *location)
+{
+	tevent_abort(ev, "tevent_wrapper_glue_loop_wait() called");
+	errno = ENOSYS;
+	return -1;
+}
+
+static const struct tevent_ops tevent_wrapper_glue_ops = {
+	.context_init		= tevent_wrapper_glue_context_init,
+	.add_fd			= tevent_wrapper_glue_add_fd,
+	.set_fd_close_fn	= tevent_common_fd_set_close_fn,
+	.get_fd_flags		= tevent_common_fd_get_flags,
+	.set_fd_flags		= tevent_common_fd_set_flags,
+	.add_timer		= tevent_wrapper_glue_add_timer,
+	.schedule_immediate	= tevent_wrapper_glue_schedule_immediate,
+	.add_signal		= tevent_wrapper_glue_add_signal,
+	.loop_once		= tevent_wrapper_glue_loop_once,
+	.loop_wait		= tevent_wrapper_glue_loop_wait,
+};
+
+static int tevent_wrapper_context_destructor(struct tevent_context *wrap_ev)
+{
+	struct tevent_wrapper_glue *glue = wrap_ev->wrapper.glue;
+	struct tevent_context *main_ev = NULL;
+	struct tevent_fd *fd = NULL, *fn = NULL;
+	struct tevent_timer *te = NULL, *tn = NULL;
+	struct tevent_immediate *ie = NULL, *in = NULL;
+	struct tevent_signal *se = NULL, *sn = NULL;
+#ifdef HAVE_PTHREAD
+	struct tevent_threaded_context *tctx = NULL, *tctxn = NULL;
+#endif
+
+	if (glue == NULL) {
+		tevent_abort(wrap_ev,
+			"tevent_wrapper_context_destructor() active on main");
+		/* static checker support, return below is never reached */
+		return -1;
+	}
+
+	if (glue->destroyed && glue->busy) {
+		tevent_common_check_double_free(wrap_ev,
+			"tevent_context wrapper double free");
+	}
+	glue->destroyed = true;
+
+	if (glue->busy) {
+		return -1;
+	}
+
+	main_ev = glue->main_ev;
+	if (main_ev == NULL) {
+		return 0;
+	}
+
+	tevent_debug(wrap_ev, TEVENT_DEBUG_TRACE,
+		     "Destroying wrapper context %p \"%s\"\n",
+		     wrap_ev, talloc_get_name(glue->private_state));
+
+	glue->main_ev = NULL;
+	DLIST_REMOVE(main_ev->wrapper.list, glue);
+
+#ifdef HAVE_PTHREAD
+	for (tctx = main_ev->threaded_contexts; tctx != NULL; tctx = tctxn) {
+		int ret;
+
+		tctxn = tctx->next;
+
+		if (tctx->event_ctx != glue->wrap_ev) {
+			continue;
+		}
+
+		ret = pthread_mutex_lock(&tctx->event_ctx_mutex);
+		if (ret != 0) {
+			abort();
+		}
+
+		/*
+		 * Indicate to the thread that the tevent_context is
+		 * gone. The counterpart of this is in
+		 * _tevent_threaded_schedule_immediate, there we read
+		 * this under the threaded_context's mutex.
+		 */
+
+		tctx->event_ctx = NULL;
+
+		ret = pthread_mutex_unlock(&tctx->event_ctx_mutex);
+		if (ret != 0) {
+			abort();
+		}
+
+		DLIST_REMOVE(main_ev->threaded_contexts, tctx);
+	}
+#endif
+
+	for (fd = main_ev->fd_events; fd; fd = fn) {
+		fn = fd->next;
+
+		if (fd->wrapper != glue) {
+			continue;
+		}
+
+		tevent_fd_set_flags(fd, 0);
+
+		fd->wrapper = NULL;
+		fd->event_ctx = NULL;
+		DLIST_REMOVE(main_ev->fd_events, fd);
+	}
+
+	for (te = main_ev->timer_events; te; te = tn) {
+		tn = te->next;
+
+		if (te->wrapper != glue) {
+			continue;
+		}
+
+		te->wrapper = NULL;
+		te->event_ctx = NULL;
+
+		if (main_ev->last_zero_timer == te) {
+			main_ev->last_zero_timer = DLIST_PREV(te);
+		}
+		DLIST_REMOVE(main_ev->timer_events, te);
+	}
+
+	for (ie = main_ev->immediate_events; ie; ie = in) {
+		in = ie->next;
+
+		if (ie->wrapper != glue) {
+			continue;
+		}
+
+		ie->wrapper = NULL;
+		ie->event_ctx = NULL;
+		ie->cancel_fn = NULL;
+		DLIST_REMOVE(main_ev->immediate_events, ie);
+	}
+
+	for (se = main_ev->signal_events; se; se = sn) {
+		sn = se->next;
+
+		if (se->wrapper != glue) {
+			continue;
+		}
+
+		se->wrapper = NULL;
+		tevent_cleanup_pending_signal_handlers(se);
+	}
+
+	return 0;
+}
+
+struct tevent_context *_tevent_context_wrapper_create(struct tevent_context *main_ev,
+						TALLOC_CTX *mem_ctx,
+						const struct tevent_wrapper_ops *ops,
+						void *pstate,
+						size_t psize,
+						const char *type,
+						const char *location)
+{
+	void **ppstate = (void **)pstate;
+	struct tevent_context *ev = NULL;
+
+	if (main_ev->wrapper.glue != NULL) {
+		/*
+		 * stacking of wrappers is not supported
+		 */
+		tevent_debug(main_ev->wrapper.glue->main_ev, TEVENT_DEBUG_FATAL,
+			     "%s: %s() stacking not allowed\n",
+			     __func__, location);
+		errno = EINVAL;
+		return NULL;
+	}
+
+	if (main_ev->nesting.allowed) {
+		/*
+		 * wrappers conflict with nesting
+		 */
+		tevent_debug(main_ev, TEVENT_DEBUG_FATAL,
+			     "%s: %s() conflicts with nesting\n",
+			     __func__, location);
+		errno = EINVAL;
+		return NULL;
+	}
+
+	ev = talloc_zero(mem_ctx, struct tevent_context);
+	if (ev == NULL) {
+		return NULL;
+	}
+	ev->ops = &tevent_wrapper_glue_ops;
+
+	ev->wrapper.glue = talloc_zero(ev, struct tevent_wrapper_glue);
+	if (ev->wrapper.glue == NULL) {
+		talloc_free(ev);
+		return NULL;
+	}
+
+	talloc_set_destructor(ev, tevent_wrapper_context_destructor);
+
+	ev->wrapper.glue->wrap_ev = ev;
+	ev->wrapper.glue->main_ev = main_ev;
+	ev->wrapper.glue->ops = ops;
+	ev->wrapper.glue->private_state = talloc_zero_size(ev->wrapper.glue, psize);
+	if (ev->wrapper.glue->private_state == NULL) {
+		talloc_free(ev);
+		return NULL;
+	}
+	talloc_set_name_const(ev->wrapper.glue->private_state, type);
+
+	DLIST_ADD_END(main_ev->wrapper.list, ev->wrapper.glue);
+
+	*ppstate = ev->wrapper.glue->private_state;
+	return ev;
+}
+
+bool tevent_context_is_wrapper(struct tevent_context *ev)
+{
+	if (ev->wrapper.glue != NULL) {
+		return true;
+	}
+
+	return false;
+}
+
+_PRIVATE_
+struct tevent_context *tevent_wrapper_main_ev(struct tevent_context *ev)
+{
+	if (ev == NULL) {
+		return NULL;
+	}
+
+	if (ev->wrapper.glue == NULL) {
+		return ev;
+	}
+
+	return ev->wrapper.glue->main_ev;
+}
+
+/*
+ * 32 stack elements should be more than enough
+ *
+ * e.g. Samba uses just 8 elements for [un]become_{root,user}()
+ */
+#define TEVENT_WRAPPER_STACK_SIZE 32
+
+static struct tevent_wrapper_stack {
+	const void *ev_ptr;
+	const struct tevent_wrapper_glue *wrapper;
+} wrapper_stack[TEVENT_WRAPPER_STACK_SIZE];
+
+static size_t wrapper_stack_idx;
+
+_PRIVATE_
+void tevent_wrapper_push_use_internal(struct tevent_context *ev,
+				      struct tevent_wrapper_glue *wrapper)
+{
+	/*
+	 * ev and wrapper need to belong together!
+	 * It's also fine to only have a raw ev
+	 * without a wrapper.
+	 */
+	if (unlikely(ev->wrapper.glue != wrapper)) {
+		tevent_abort(ev, "tevent_wrapper_push_use_internal() invalid arguments");
+		return;
+	}
+
+	if (wrapper != NULL) {
+		if (unlikely(wrapper->busy)) {
+			tevent_abort(ev, "wrapper already busy!");
+			return;
+		}
+		wrapper->busy = true;
+	}
+
+	if (unlikely(wrapper_stack_idx >= TEVENT_WRAPPER_STACK_SIZE)) {
+		tevent_abort(ev, "TEVENT_WRAPPER_STACK_SIZE overflow");
+		return;
+	}
+
+	wrapper_stack[wrapper_stack_idx] = (struct tevent_wrapper_stack) {
+		.ev_ptr = ev,
+		.wrapper = wrapper,
+	};
+	wrapper_stack_idx++;
+}
+
+_PRIVATE_
+void tevent_wrapper_pop_use_internal(const struct tevent_context *__ev_ptr,
+				     struct tevent_wrapper_glue *wrapper)
+{
+	struct tevent_context *main_ev = NULL;
+
+	/*
+	 * Note that __ev_ptr might a a stale pointer and should not
+	 * be touched, we just compare the pointer value in order
+	 * to enforce the stack order.
+	 */
+
+	if (wrapper != NULL) {
+		main_ev = wrapper->main_ev;
+	}
+
+	if (unlikely(wrapper_stack_idx == 0)) {
+		tevent_abort(main_ev, "tevent_wrapper stack already empty");
+		return;
+	}
+	wrapper_stack_idx--;
+
+	if (wrapper != NULL) {
+		wrapper->busy = false;
+	}
+
+	if (wrapper_stack[wrapper_stack_idx].ev_ptr != __ev_ptr) {
+		tevent_abort(main_ev, "tevent_wrapper_pop_use mismatch ev!");
+		return;
+	}
+	if (wrapper_stack[wrapper_stack_idx].wrapper != wrapper) {
+		tevent_abort(main_ev, "tevent_wrapper_pop_use mismatch wrap!");
+		return;
+	}
+
+	if (wrapper == NULL) {
+		return;
+	}
+
+	if (wrapper->destroyed) {
+		/*
+		 * Notice that we can't use TALLOC_FREE()
+		 * here because wrapper is a talloc child
+		 * of wrapper->wrap_ev.
+		 */
+		talloc_free(wrapper->wrap_ev);
+	}
+}
+
+bool _tevent_context_push_use(struct tevent_context *ev,
+			      const char *location)
+{
+	bool ok;
+
+	if (ev->wrapper.glue == NULL) {
+		tevent_wrapper_push_use_internal(ev, NULL);
+		return true;
+	}
+
+	if (ev->wrapper.glue->main_ev == NULL) {
+		return false;
+	}
+
+	tevent_wrapper_push_use_internal(ev, ev->wrapper.glue);
+	ok = ev->wrapper.glue->ops->before_use(ev->wrapper.glue->wrap_ev,
+					       ev->wrapper.glue->private_state,
+					       ev->wrapper.glue->main_ev,
+					       location);
+	if (!ok) {
+		tevent_wrapper_pop_use_internal(ev, ev->wrapper.glue);
+		return false;
+	}
+
+	return true;
+}
+
+void _tevent_context_pop_use(struct tevent_context *ev,
+			     const char *location)
+{
+	tevent_wrapper_pop_use_internal(ev, ev->wrapper.glue);
+
+	if (ev->wrapper.glue == NULL) {
+		return;
+	}
+
+	if (ev->wrapper.glue->main_ev == NULL) {
+		return;
+	}
+
+	ev->wrapper.glue->ops->after_use(ev->wrapper.glue->wrap_ev,
+					 ev->wrapper.glue->private_state,
+					 ev->wrapper.glue->main_ev,
+					 location);
+}
+
+bool tevent_context_same_loop(struct tevent_context *ev1,
+			      struct tevent_context *ev2)
+{
+	struct tevent_context *main_ev1 = tevent_wrapper_main_ev(ev1);
+	struct tevent_context *main_ev2 = tevent_wrapper_main_ev(ev2);
+
+	if (main_ev1 == NULL) {
+		return false;
+	}
+
+	if (main_ev1 == main_ev2) {
+		return true;
+	}
+
+	return false;
+}
diff --git a/lib/tevent/wscript b/lib/tevent/wscript
new file mode 100644
index 0000000..5c6f02c
--- /dev/null
+++ b/lib/tevent/wscript
@@ -0,0 +1,175 @@
+#!/usr/bin/env python
+
+APPNAME = 'tevent'
+VERSION = '0.13.0'
+
+import sys, os
+
+# find the buildtools directory
+top = '.'
+while not os.path.exists(top+'/buildtools') and len(top.split('/')) < 5:
+    top = top + '/..'
+sys.path.insert(0, top + '/buildtools/wafsamba')
+
+out = 'bin'
+
+import wafsamba
+from wafsamba import samba_dist, samba_utils
+from waflib import Options, Logs, Context, Errors
+
+samba_dist.DIST_DIRS('''lib/tevent:. lib/replace:lib/replace
+                        lib/talloc:lib/talloc buildtools:buildtools
+                        third_party/cmocka:third_party/cmocka
+                        third_party/waf:third_party/waf''')
+
+def options(opt):
+    opt.BUILTIN_DEFAULT('replace')
+    opt.PRIVATE_EXTENSION_DEFAULT('tevent', noextension='tevent')
+    opt.RECURSE('lib/replace')
+    opt.RECURSE('lib/talloc')
+
+
+def configure(conf):
+    conf.RECURSE('lib/replace')
+    conf.RECURSE('lib/talloc')
+
+    if conf.CHECK_FOR_THIRD_PARTY():
+        conf.RECURSE('third_party/cmocka')
+    else:
+        if not conf.CHECK_CMOCKA():
+            raise Errors.WafError('cmocka development package have not been found.\nIf third_party is installed, check that it is in the proper place.')
+        else:
+            conf.define('USING_SYSTEM_CMOCKA', 1)
+
+    conf.env.standalone_tevent = conf.IN_LAUNCH_DIR()
+
+    if not conf.env.standalone_tevent:
+        if conf.CHECK_BUNDLED_SYSTEM_PKG('tevent', minversion=VERSION,
+                                     onlyif='talloc', implied_deps='replace talloc'):
+            conf.define('USING_SYSTEM_TEVENT', 1)
+            if not conf.env.disable_python and \
+                conf.CHECK_BUNDLED_SYSTEM_PYTHON('pytevent', 'tevent', minversion=VERSION):
+                conf.define('USING_SYSTEM_PYTEVENT', 1)
+
+    if conf.CHECK_FUNCS('epoll_create', headers='sys/epoll.h'):
+        conf.DEFINE('HAVE_EPOLL', 1)
+
+    tevent_num_signals = 64
+    v = conf.CHECK_VALUEOF('NSIG', headers='signal.h')
+    if v is not None:
+        tevent_num_signals = max(tevent_num_signals, v)
+    v = conf.CHECK_VALUEOF('_NSIG', headers='signal.h')
+    if v is not None:
+        tevent_num_signals = max(tevent_num_signals, v)
+    v = conf.CHECK_VALUEOF('SIGRTMAX', headers='signal.h')
+    if v is not None:
+        tevent_num_signals = max(tevent_num_signals, v)
+    v = conf.CHECK_VALUEOF('SIGRTMIN', headers='signal.h')
+    if v is not None:
+        tevent_num_signals = max(tevent_num_signals, v*2)
+
+    if not conf.CONFIG_SET('USING_SYSTEM_TEVENT'):
+        conf.DEFINE('TEVENT_NUM_SIGNALS', tevent_num_signals)
+
+    conf.SAMBA_CHECK_PYTHON()
+    conf.SAMBA_CHECK_PYTHON_HEADERS()
+
+    conf.SAMBA_CONFIG_H()
+
+    conf.SAMBA_CHECK_UNDEFINED_SYMBOL_FLAGS()
+
+def build(bld):
+    bld.RECURSE('lib/replace')
+    bld.RECURSE('lib/talloc')
+
+    if bld.CHECK_FOR_THIRD_PARTY():
+        bld.RECURSE('third_party/cmocka')
+
+    SRC = '''tevent.c tevent_debug.c tevent_fd.c tevent_immediate.c
+             tevent_queue.c tevent_req.c tevent_wrapper.c
+             tevent_poll.c tevent_threads.c
+             tevent_signal.c tevent_standard.c tevent_timed.c tevent_util.c tevent_wakeup.c'''
+
+    if bld.CONFIG_SET('HAVE_EPOLL'):
+        SRC += ' tevent_epoll.c'
+
+    if bld.CONFIG_SET('HAVE_SOLARIS_PORTS'):
+        SRC += ' tevent_port.c'
+
+    if bld.env.standalone_tevent:
+        bld.env.PKGCONFIGDIR = '${LIBDIR}/pkgconfig'
+        private_library = False
+    else:
+        private_library = True
+
+    if not bld.CONFIG_SET('USING_SYSTEM_TEVENT'):
+        tevent_deps = 'replace talloc'
+        if bld.CONFIG_SET('HAVE_PTHREAD'):
+            tevent_deps += ' pthread'
+
+        bld.SAMBA_LIBRARY('tevent',
+                          SRC,
+                          deps=tevent_deps,
+                          enabled= not bld.CONFIG_SET('USING_SYSTEM_TEVENT'),
+                          includes='.',
+                          abi_directory='ABI',
+                          abi_match='tevent_* _tevent_*',
+                          vnum=VERSION,
+                          public_headers=('' if private_library else 'tevent.h'),
+                          public_headers_install=not private_library,
+                          pc_files='tevent.pc',
+                          private_library=private_library)
+
+    if not bld.CONFIG_SET('USING_SYSTEM_PYTEVENT') and not bld.env.disable_python:
+        bld.SAMBA_PYTHON('_tevent',
+                         'pytevent.c',
+                         deps='tevent',
+                         realname='_tevent.so',
+                         cflags='-DPACKAGE_VERSION=\"%s\"' % VERSION)
+
+
+        bld.INSTALL_WILDCARD('${PYTHONARCHDIR}', 'tevent.py', flat=False)
+
+        # install out various python scripts for use by make test
+        bld.SAMBA_SCRIPT('tevent_python',
+                         pattern='tevent.py',
+                         installdir='python')
+
+    bld.SAMBA_BINARY('test_tevent_tag',
+                     source='tests/test_tevent_tag.c',
+                     deps='cmocka tevent',
+                     install=False)
+
+    bld.SAMBA_BINARY('test_tevent_trace',
+                     source='tests/test_tevent_trace.c',
+                     deps='cmocka tevent',
+                     install=False)
+
+def test(ctx):
+    '''test tevent'''
+    print("The tevent testsuite is part of smbtorture in samba4")
+
+    samba_utils.ADD_LD_LIBRARY_PATH('bin/shared')
+    samba_utils.ADD_LD_LIBRARY_PATH('bin/shared/private')
+
+    pyret = samba_utils.RUN_PYTHON_TESTS(['bindings.py'])
+
+    unit_test_ret = 0
+    unit_tests = [
+        'test_tevent_tag',
+        'test_tevent_trace',
+    ]
+
+    for unit_test in unit_tests:
+        unit_test_cmd = os.path.join(Context.g_module.out, unit_test)
+        unit_test_ret = unit_test_ret or samba_utils.RUN_COMMAND(unit_test_cmd)
+
+    sys.exit(pyret or unit_test_ret)
+
+def dist():
+    '''makes a tarball for distribution'''
+    samba_dist.dist()
+
+def reconfigure(ctx):
+    '''reconfigure if config scripts have changed'''
+    samba_utils.reconfigure(ctx)