diff options
Diffstat (limited to 'wsrep-lib/wsrep-API/v26/wsrep_dummy.c')
| -rw-r--r-- | wsrep-lib/wsrep-API/v26/wsrep_dummy.c | 462 |
1 files changed, 462 insertions, 0 deletions
diff --git a/wsrep-lib/wsrep-API/v26/wsrep_dummy.c b/wsrep-lib/wsrep-API/v26/wsrep_dummy.c new file mode 100644 index 00000000..7bd441dc --- /dev/null +++ b/wsrep-lib/wsrep-API/v26/wsrep_dummy.c @@ -0,0 +1,462 @@ +/* Copyright (C) 2009-2010 Codership Oy <info@codersihp.com> + + 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; version 2 of the License. + + 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, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +/*! @file Dummy wsrep API implementation. */ + +#include "wsrep_api.h" + +#include <errno.h> +#include <stdbool.h> +#include <string.h> + +/*! Dummy backend context. */ +typedef struct wsrep_dummy +{ + wsrep_log_cb_t log_fn; + char* options; +} wsrep_dummy_t; + +/* Get pointer to wsrep_dummy context from wsrep_t pointer */ +#define WSREP_DUMMY(_p) ((wsrep_dummy_t *) (_p)->ctx) + +/* Trace function usage a-la DBUG */ +#define WSREP_DBUG_ENTER(_w) do { \ + if (WSREP_DUMMY(_w)) { \ + if (WSREP_DUMMY(_w)->log_fn) \ + WSREP_DUMMY(_w)->log_fn(WSREP_LOG_DEBUG, __FUNCTION__); \ + } \ + } while (0) + + +static void dummy_free(wsrep_t *w) +{ + if (!w->ctx) return; + + WSREP_DBUG_ENTER(w); + if (WSREP_DUMMY(w)->options) { + free(WSREP_DUMMY(w)->options); + WSREP_DUMMY(w)->options = NULL; + } + free(w->ctx); + w->ctx = NULL; +} + +static wsrep_status_t dummy_init (wsrep_t* w, + const struct wsrep_init_args* args) +{ + WSREP_DUMMY(w)->log_fn = args->logger_cb; + WSREP_DBUG_ENTER(w); + if (args->options) { + WSREP_DUMMY(w)->options = strdup(args->options); + } + return WSREP_OK; +} + +static wsrep_cap_t dummy_capabilities (wsrep_t* w __attribute__((unused))) +{ + return 0; +} + +static wsrep_status_t dummy_options_set( + wsrep_t* w, + const char* conf) +{ + WSREP_DBUG_ENTER(w); + if (WSREP_DUMMY(w)->options) { + free(WSREP_DUMMY(w)->options); + WSREP_DUMMY(w)->options = NULL; + } + if (conf) { + WSREP_DUMMY(w)->options = strdup(conf); + } + return WSREP_OK; +} + +static char* dummy_options_get (wsrep_t* w) +{ + WSREP_DBUG_ENTER(w); + return strdup(WSREP_DUMMY(w)->options); +} + +static wsrep_status_t dummy_enc_set_key( + wsrep_t* w, + const wsrep_enc_key_t* key __attribute__((unused))) +{ + WSREP_DBUG_ENTER(w); + return WSREP_OK; +} + +static wsrep_status_t dummy_connect( + wsrep_t* w, + const char* name __attribute__((unused)), + const char* url __attribute__((unused)), + const char* donor __attribute__((unused)), + wsrep_bool_t bootstrap __attribute__((unused))) +{ + WSREP_DBUG_ENTER(w); + return WSREP_OK; +} + +static wsrep_status_t dummy_disconnect(wsrep_t* w) +{ + WSREP_DBUG_ENTER(w); + return WSREP_OK; +} + +static wsrep_status_t dummy_recv(wsrep_t* w, + void* recv_ctx __attribute__((unused))) +{ + WSREP_DBUG_ENTER(w); + return WSREP_OK; +} + +static wsrep_status_t dummy_assign_read_view( + wsrep_t* w, + wsrep_ws_handle_t* ws_handle __attribute__((unused)), + const wsrep_gtid_t* rv __attribute__((unused))) +{ + WSREP_DBUG_ENTER(w); + return WSREP_OK; +} + +static wsrep_status_t dummy_certify( + wsrep_t* w, + const wsrep_conn_id_t conn_id __attribute__((unused)), + wsrep_ws_handle_t* ws_handle __attribute__((unused)), + uint32_t flags __attribute__((unused)), + wsrep_trx_meta_t* meta __attribute__((unused))) +{ + WSREP_DBUG_ENTER(w); + return WSREP_OK; +} + +static wsrep_status_t dummy_commit_order_enter( + wsrep_t* w, + const wsrep_ws_handle_t* ws_handle __attribute__((unused)), + const wsrep_trx_meta_t* meta __attribute__((unused))) +{ + WSREP_DBUG_ENTER(w); + return WSREP_OK; +} + +static wsrep_status_t dummy_commit_order_leave( + wsrep_t* w, + const wsrep_ws_handle_t* ws_handle __attribute__((unused)), + const wsrep_trx_meta_t* meta __attribute__((unused)), + const wsrep_buf_t* error __attribute__((unused))) +{ + WSREP_DBUG_ENTER(w); + return WSREP_OK; +} + +static wsrep_status_t dummy_release( + wsrep_t* w, + wsrep_ws_handle_t* ws_handle __attribute__((unused))) +{ + WSREP_DBUG_ENTER(w); + return WSREP_OK; +} + +static wsrep_status_t dummy_replay_trx( + wsrep_t* w, + const wsrep_ws_handle_t* ws_handle __attribute__((unused)), + void* trx_ctx __attribute__((unused))) +{ + WSREP_DBUG_ENTER(w); + return WSREP_OK; +} + +static wsrep_status_t dummy_abort_certification( + wsrep_t* w, + const wsrep_seqno_t bf_seqno __attribute__((unused)), + const wsrep_trx_id_t trx_id __attribute__((unused)), + wsrep_seqno_t *victim_seqno __attribute__((unused))) +{ + WSREP_DBUG_ENTER(w); + return WSREP_OK; +} + +static wsrep_status_t dummy_rollback( + wsrep_t* w, + const wsrep_trx_id_t trx __attribute__((unused)), + const wsrep_buf_t* data __attribute__((unused))) +{ + WSREP_DBUG_ENTER(w); + return WSREP_OK; +} + +static wsrep_status_t dummy_append_key( + wsrep_t* w, + wsrep_ws_handle_t* ws_handle __attribute__((unused)), + const wsrep_key_t* key __attribute__((unused)), + const size_t key_num __attribute__((unused)), + const wsrep_key_type_t key_type __attribute__((unused)), + const bool copy __attribute__((unused))) +{ + WSREP_DBUG_ENTER(w); + return WSREP_OK; +} + +static wsrep_status_t dummy_append_data( + wsrep_t* w, + wsrep_ws_handle_t* ws_handle __attribute__((unused)), + const struct wsrep_buf* data __attribute__((unused)), + const size_t count __attribute__((unused)), + const wsrep_data_type_t type __attribute__((unused)), + const bool copy __attribute__((unused))) +{ + WSREP_DBUG_ENTER(w); + return WSREP_OK; +} + +static wsrep_status_t dummy_sync_wait( + wsrep_t* w, + wsrep_gtid_t* upto __attribute__((unused)), + int tout __attribute__((unused)), + wsrep_gtid_t* gtid __attribute__((unused))) +{ + WSREP_DBUG_ENTER(w); + return WSREP_OK; +} + +static wsrep_status_t dummy_last_committed_id( + wsrep_t* w, + wsrep_gtid_t* gtid __attribute__((unused))) +{ + WSREP_DBUG_ENTER(w); + return WSREP_OK; +} + +static wsrep_status_t dummy_free_connection( + wsrep_t* w, + const wsrep_conn_id_t conn_id __attribute__((unused))) +{ + WSREP_DBUG_ENTER(w); + return WSREP_OK; +} + +static wsrep_status_t dummy_to_execute_start( + wsrep_t* w, + const wsrep_conn_id_t conn_id __attribute__((unused)), + const wsrep_key_t* key __attribute__((unused)), + const size_t key_num __attribute__((unused)), + const struct wsrep_buf* data __attribute__((unused)), + const size_t count __attribute__((unused)), + const uint32_t flags __attribute__((unused)), + wsrep_trx_meta_t* meta __attribute__((unused))) +{ + WSREP_DBUG_ENTER(w); + return WSREP_OK; +} + +static wsrep_status_t dummy_to_execute_end( + wsrep_t* w, + const wsrep_conn_id_t conn_id __attribute__((unused)), + const wsrep_buf_t* err __attribute__((unused))) +{ + WSREP_DBUG_ENTER(w); + return WSREP_OK; +} + +static wsrep_status_t dummy_preordered_collect( + wsrep_t* w, + wsrep_po_handle_t* handle __attribute__((unused)), + const struct wsrep_buf* data __attribute__((unused)), + size_t count __attribute__((unused)), + wsrep_bool_t copy __attribute__((unused))) +{ + WSREP_DBUG_ENTER(w); + return WSREP_OK; +} + +static wsrep_status_t dummy_preordered_commit( + wsrep_t* w, + wsrep_po_handle_t* handle __attribute__((unused)), + const wsrep_uuid_t* source_id __attribute__((unused)), + uint32_t flags __attribute__((unused)), + int pa_range __attribute__((unused)), + wsrep_bool_t commit __attribute__((unused))) +{ + WSREP_DBUG_ENTER(w); + return WSREP_OK; +} + +static wsrep_status_t dummy_sst_sent( + wsrep_t* w, + const wsrep_gtid_t* state_id __attribute__((unused)), + const int rcode __attribute__((unused))) +{ + WSREP_DBUG_ENTER(w); + return WSREP_OK; +} + +static wsrep_status_t dummy_sst_received( + wsrep_t* w, + const wsrep_gtid_t* state_id __attribute__((unused)), + const wsrep_buf_t* state __attribute__((unused)), + const int rcode __attribute__((unused))) +{ + WSREP_DBUG_ENTER(w); + return WSREP_OK; +} + +static wsrep_status_t dummy_snapshot( + wsrep_t* w, + const wsrep_buf_t* msg __attribute__((unused)), + const char* donor_spec __attribute__((unused))) +{ + WSREP_DBUG_ENTER(w); + return WSREP_OK; +} + +static struct wsrep_stats_var dummy_stats[] = { + { NULL, WSREP_VAR_STRING, { 0 } } +}; + +static struct wsrep_stats_var* dummy_stats_get (wsrep_t* w) +{ + WSREP_DBUG_ENTER(w); + return dummy_stats; +} + +static void dummy_stats_free ( + wsrep_t* w, + struct wsrep_stats_var* stats __attribute__((unused))) +{ + WSREP_DBUG_ENTER(w); +} + +static void dummy_stats_reset (wsrep_t* w) +{ + WSREP_DBUG_ENTER(w); +} + +static wsrep_seqno_t dummy_pause (wsrep_t* w) +{ + WSREP_DBUG_ENTER(w); + return -ENOSYS; +} + +static wsrep_status_t dummy_resume (wsrep_t* w) +{ + WSREP_DBUG_ENTER(w); + return WSREP_OK; +} + +static wsrep_status_t dummy_desync (wsrep_t* w) +{ + WSREP_DBUG_ENTER(w); + return WSREP_NOT_IMPLEMENTED; +} + +static wsrep_status_t dummy_resync (wsrep_t* w) +{ + WSREP_DBUG_ENTER(w); + return WSREP_OK; +} + +static wsrep_status_t dummy_lock (wsrep_t* w, + const char* s __attribute__((unused)), + bool r __attribute__((unused)), + uint64_t o __attribute__((unused)), + int64_t t __attribute__((unused))) +{ + WSREP_DBUG_ENTER(w); + return WSREP_NOT_IMPLEMENTED; +} + +static wsrep_status_t dummy_unlock (wsrep_t* w, + const char* s __attribute__((unused)), + uint64_t o __attribute__((unused))) +{ + WSREP_DBUG_ENTER(w); + return WSREP_OK; +} + +static bool dummy_is_locked (wsrep_t* w, + const char* s __attribute__((unused)), + uint64_t* o __attribute__((unused)), + wsrep_uuid_t* t __attribute__((unused))) +{ + WSREP_DBUG_ENTER(w); + return false; +} + +static wsrep_t dummy_iface = { + WSREP_INTERFACE_VERSION, + &dummy_init, + &dummy_capabilities, + &dummy_options_set, + &dummy_options_get, + &dummy_enc_set_key, + &dummy_connect, + &dummy_disconnect, + &dummy_recv, + &dummy_assign_read_view, + &dummy_certify, + &dummy_commit_order_enter, + &dummy_commit_order_leave, + &dummy_release, + &dummy_replay_trx, + &dummy_abort_certification, + &dummy_rollback, + &dummy_append_key, + &dummy_append_data, + &dummy_sync_wait, + &dummy_last_committed_id, + &dummy_free_connection, + &dummy_to_execute_start, + &dummy_to_execute_end, + &dummy_preordered_collect, + &dummy_preordered_commit, + &dummy_sst_sent, + &dummy_sst_received, + &dummy_snapshot, + &dummy_stats_get, + &dummy_stats_free, + &dummy_stats_reset, + &dummy_pause, + &dummy_resume, + &dummy_desync, + &dummy_resync, + &dummy_lock, + &dummy_unlock, + &dummy_is_locked, + WSREP_NONE, + WSREP_INTERFACE_VERSION, + "Codership Oy <info@codership.com>", + &dummy_free, + NULL, + NULL +}; + +int wsrep_dummy_loader(wsrep_t* w) +{ + if (!w) + return EINVAL; + + *w = dummy_iface; + + // allocate private context + if (!(w->ctx = malloc(sizeof(wsrep_dummy_t)))) + return ENOMEM; + + // initialize private context + WSREP_DUMMY(w)->log_fn = NULL; + WSREP_DUMMY(w)->options = NULL; + + return 0; +} |