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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
| commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
| tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /nsprpub/pr/src/md | |
| parent | Initial commit. (diff) | |
| download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip | |
Adding upstream version 115.7.0esr.upstream/115.7.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'nsprpub/pr/src/md')
79 files changed, 28453 insertions, 0 deletions
diff --git a/nsprpub/pr/src/md/Makefile.in b/nsprpub/pr/src/md/Makefile.in new file mode 100644 index 0000000000..e72bc65ab4 --- /dev/null +++ b/nsprpub/pr/src/md/Makefile.in @@ -0,0 +1,32 @@ +# +# This Source Code Form is subject to the terms of the Mozilla Public +# License, v. 2.0. If a copy of the MPL was not distributed with this +# file, You can obtain one at http://mozilla.org/MPL/2.0/. + +#! gmake + +MOD_DEPTH = ../../.. +topsrcdir = @top_srcdir@ +srcdir = @srcdir@ +VPATH = @srcdir@ + +include $(MOD_DEPTH)/config/autoconf.mk + +include $(topsrcdir)/config/config.mk + +DIRS = $(PR_MD_ARCH_DIR) + +CSRCS = \ + prosdep.c \ + $(NULL) + +TARGETS = $(OBJS) + +INCLUDES = -I$(dist_includedir) -I$(topsrcdir)/pr/include + +DEFINES += -D_NSPR_BUILD_ + +include $(topsrcdir)/config/rules.mk + +export:: $(TARGETS) + diff --git a/nsprpub/pr/src/md/os2/Makefile.in b/nsprpub/pr/src/md/os2/Makefile.in new file mode 100644 index 0000000000..9a7648ef8b --- /dev/null +++ b/nsprpub/pr/src/md/os2/Makefile.in @@ -0,0 +1,47 @@ +# +# This Source Code Form is subject to the terms of the Mozilla Public +# License, v. 2.0. If a copy of the MPL was not distributed with this +# file, You can obtain one at http://mozilla.org/MPL/2.0/. + +#! gmake + +MOD_DEPTH = ../../../.. +topsrcdir = @top_srcdir@ +srcdir = @srcdir@ +VPATH = @srcdir@ + +include $(MOD_DEPTH)/config/autoconf.mk + +include $(topsrcdir)/config/config.mk + +ifeq ($(OS_TARGET), OS2) +CSRCS = \ + os2misc.c \ + os2sem.c \ + os2inrval.c \ + os2gc.c \ + os2thred.c \ + os2io.c \ + os2cv.c \ + os2sock.c \ + os2_errors.c \ + os2poll.c \ + os2rng.c \ + $(NULL) +endif + +ASFILES = os2emx.s os2vaclegacy.s + +TARGETS = $(OBJS) + +INCLUDES = -I$(dist_includedir) -I$(topsrcdir)/pr/include -I$(topsrcdir)/pr/include/private + +DEFINES += -D_NSPR_BUILD_ + +include $(topsrcdir)/config/rules.mk + +export:: $(TARGETS) + + + + diff --git a/nsprpub/pr/src/md/os2/objs.mk b/nsprpub/pr/src/md/os2/objs.mk new file mode 100644 index 0000000000..c1a40e3f7d --- /dev/null +++ b/nsprpub/pr/src/md/os2/objs.mk @@ -0,0 +1,27 @@ +# +# This Source Code Form is subject to the terms of the Mozilla Public +# License, v. 2.0. If a copy of the MPL was not distributed with this +# file, You can obtain one at http://mozilla.org/MPL/2.0/. + +# This makefile appends to the variable OBJS the platform-dependent +# object modules that will be part of the nspr20 library. + +CSRCS = \ + os2io.c \ + os2sock.c \ + os2thred.c \ + os2cv.c \ + os2gc.c \ + os2misc.c \ + os2inrval.c \ + os2sem.c \ + os2_errors.c \ + os2poll.c \ + os2rng.c \ + $(NULL) + +ASFILES = os2emx.s os2vaclegacy.s + +OBJS += $(addprefix md/os2/$(OBJDIR)/,$(CSRCS:.c=.$(OBJ_SUFFIX))) \ + $(addprefix md/os2/$(OBJDIR)/,$(ASFILES:.$(ASM_SUFFIX)=.$(OBJ_SUFFIX))) + diff --git a/nsprpub/pr/src/md/os2/os2_errors.c b/nsprpub/pr/src/md/os2/os2_errors.c new file mode 100644 index 0000000000..dfcca6108d --- /dev/null +++ b/nsprpub/pr/src/md/os2/os2_errors.c @@ -0,0 +1,1095 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "prerror.h" +#include "primpl.h" + +void _MD_os2_map_default_error(PRInt32 err) +{ + switch (err) { + case EWOULDBLOCK: + PR_SetError(PR_WOULD_BLOCK_ERROR, err); + break; + case EBADF: + PR_SetError(PR_BAD_DESCRIPTOR_ERROR, err); + break; + case ENOTSOCK: + PR_SetError(PR_NOT_SOCKET_ERROR, err); + break; + case EMSGSIZE: + case EINVAL: + PR_SetError(PR_INVALID_ARGUMENT_ERROR, err); + break; + case ENOBUFS: + PR_SetError(PR_INSUFFICIENT_RESOURCES_ERROR, err); + break; + case ECONNREFUSED: + PR_SetError(PR_CONNECT_REFUSED_ERROR, err); + break; + case EISCONN: + PR_SetError(PR_IS_CONNECTED_ERROR, err); + break; +#ifdef SOCEFAULT + case SOCEFAULT: + PR_SetError(PR_ACCESS_FAULT_ERROR, err); + break; +#endif + case ERROR_NETNAME_DELETED: + PR_SetError(PR_CONNECT_RESET_ERROR, err); + break; + default: + PR_SetError(PR_UNKNOWN_ERROR, err); + break; + } +} +void _MD_os2_map_opendir_error(PRInt32 err) +{ + switch (err) { + case ERROR_FILE_NOT_FOUND: + case ERROR_PATH_NOT_FOUND: + PR_SetError(PR_FILE_NOT_FOUND_ERROR, err); + break; + case ERROR_ACCESS_DENIED: + PR_SetError(PR_NO_ACCESS_RIGHTS_ERROR, err); + break; + case ERROR_INVALID_ADDRESS: + case ERROR_INVALID_ACCESS: + PR_SetError(PR_ACCESS_FAULT_ERROR, err); + break; + case ERROR_INVALID_NAME: + case ERROR_INVALID_PARAMETER: + PR_SetError(PR_INVALID_ARGUMENT_ERROR, err); + break; + case ERROR_TOO_MANY_OPEN_FILES: + case ERROR_NOT_DOS_DISK: + case ERROR_NOT_READY: + case ERROR_OPEN_FAILED: + case ERROR_PATH_BUSY: + case ERROR_CANNOT_MAKE: + PR_SetError(PR_IO_ERROR, err); + break; + case ERROR_DRIVE_LOCKED: + case ERROR_DEVICE_IN_USE: + PR_SetError(PR_FILE_IS_LOCKED_ERROR, err); + break; + case ERROR_FILENAME_EXCED_RANGE: + PR_SetError(PR_NAME_TOO_LONG_ERROR, err); + break; + case ERROR_NOT_ENOUGH_MEMORY: + case ERROR_SHARING_BUFFER_EXCEEDED: + PR_SetError(PR_INSUFFICIENT_RESOURCES_ERROR, err); + break; + default: + PR_SetError(PR_UNKNOWN_ERROR, err); + break; + } +} + +void _MD_os2_map_closedir_error(PRInt32 err) +{ + switch (err) { + case ERROR_FILE_NOT_FOUND: + case ERROR_ACCESS_DENIED: + case ERROR_INVALID_HANDLE: + PR_SetError(PR_BAD_DESCRIPTOR_ERROR, err); + break; + default: + PR_SetError(PR_UNKNOWN_ERROR, err); + break; + } +} + +void _MD_os2_readdir_error(PRInt32 err) +{ + + switch (err) { + case ERROR_NO_MORE_FILES: + PR_SetError(PR_NO_MORE_FILES_ERROR, err); + break; + case ERROR_FILE_NOT_FOUND: + case ERROR_INVALID_HANDLE: + PR_SetError(PR_BAD_DESCRIPTOR_ERROR, err); + break; + case ERROR_INVALID_ADDRESS: + PR_SetError(PR_ACCESS_FAULT_ERROR, err); + break; + case ERROR_NOT_DOS_DISK: + case ERROR_LOCK_VIOLATION: + case ERROR_BROKEN_PIPE: + case ERROR_NOT_READY: + PR_SetError(PR_IO_ERROR, err); + break; + case ERROR_NOT_ENOUGH_MEMORY: + case ERROR_MORE_DATA: + PR_SetError(PR_INSUFFICIENT_RESOURCES_ERROR, err); + break; + default: + PR_SetError(PR_UNKNOWN_ERROR, err); + break; + } +} + +void _MD_os2_map_delete_error(PRInt32 err) +{ + switch (err) { + case ERROR_FILE_NOT_FOUND: + case ERROR_PATH_NOT_FOUND: + PR_SetError(PR_FILE_NOT_FOUND_ERROR, err); + break; + case ERROR_ACCESS_DENIED: + case ERROR_WRITE_PROTECT: + PR_SetError(PR_NO_ACCESS_RIGHTS_ERROR, err); + break; + case ERROR_INVALID_ADDRESS: + PR_SetError(PR_ACCESS_FAULT_ERROR, err); + break; + case ERROR_DRIVE_LOCKED: + case ERROR_LOCKED: + case ERROR_SHARING_VIOLATION: + PR_SetError(PR_FILE_IS_LOCKED_ERROR, err); + break; + default: + PR_SetError(PR_UNKNOWN_ERROR, err); + break; + } +} + +/* The error code for stat() is in errno. */ +void _MD_os2_map_stat_error(PRInt32 err) +{ + switch (err) { + case ENOENT: + PR_SetError(PR_FILE_NOT_FOUND_ERROR, err); + break; + case EACCES: + PR_SetError(PR_NO_ACCESS_RIGHTS_ERROR, err); + break; + default: + PR_SetError(PR_UNKNOWN_ERROR, err); + } +} + +void _MD_os2_map_fstat_error(PRInt32 err) +{ + switch (err) { + case ERROR_ACCESS_DENIED: + PR_SetError(PR_NO_ACCESS_RIGHTS_ERROR, err); + break; + case ERROR_INVALID_HANDLE: + PR_SetError(PR_BAD_DESCRIPTOR_ERROR, err); + break; + case ERROR_INVALID_ADDRESS: + PR_SetError(PR_ACCESS_FAULT_ERROR, err); + break; + case ERROR_NOT_READY: + case ERROR_PATH_BUSY: + PR_SetError(PR_IO_ERROR, err); + break; + case ERROR_NOT_ENOUGH_MEMORY: + case ERROR_MORE_DATA: + PR_SetError(PR_INSUFFICIENT_RESOURCES_ERROR, err); + break; + case ERROR_DRIVE_LOCKED: + case ERROR_LOCKED: + PR_SetError(PR_FILE_IS_LOCKED_ERROR, err); + break; + default: + PR_SetError(PR_UNKNOWN_ERROR, err); + break; + } +} + +void _MD_os2_map_rename_error(PRInt32 err) +{ + switch (err) { + case ERROR_FILE_NOT_FOUND: + case ERROR_PATH_NOT_FOUND: + PR_SetError(PR_FILE_NOT_FOUND_ERROR, err); + break; + case ERROR_ACCESS_DENIED: + PR_SetError(PR_NO_ACCESS_RIGHTS_ERROR, err); + break; + case ERROR_INVALID_ADDRESS: + PR_SetError(PR_ACCESS_FAULT_ERROR, err); + break; + case ERROR_INVALID_NAME: + PR_SetError(PR_INVALID_ARGUMENT_ERROR, err); + break; + case ERROR_NOT_READY: + case ERROR_PATH_BUSY: + PR_SetError(PR_IO_ERROR, err); + break; + case ERROR_DRIVE_LOCKED: + PR_SetError(PR_FILE_IS_LOCKED_ERROR, err); + break; + case ERROR_FILENAME_EXCED_RANGE: + PR_SetError(PR_NAME_TOO_LONG_ERROR, err); + break; + case ERROR_NOT_ENOUGH_MEMORY: + case ERROR_MORE_DATA: + PR_SetError(PR_INSUFFICIENT_RESOURCES_ERROR, err); + break; + case ERROR_ALREADY_EXISTS: + case ERROR_FILE_EXISTS: + PR_SetError(PR_FILE_EXISTS_ERROR, err); + break; + default: + PR_SetError(PR_UNKNOWN_ERROR, err); + break; + } +} + +/* The error code for access() is in errno. */ +void _MD_os2_map_access_error(PRInt32 err) +{ + switch (err) { + case ENOENT: + PR_SetError(PR_FILE_NOT_FOUND_ERROR, err); + break; + case EACCES: + PR_SetError(PR_NO_ACCESS_RIGHTS_ERROR, err); + break; + default: + PR_SetError(PR_UNKNOWN_ERROR, err); + } +} + +void _MD_os2_map_mkdir_error(PRInt32 err) +{ + switch (err) { + case ERROR_ALREADY_EXISTS: + case ERROR_FILE_EXISTS: + PR_SetError(PR_FILE_EXISTS_ERROR, err); + break; + case ERROR_FILE_NOT_FOUND: + PR_SetError(PR_FILE_NOT_FOUND_ERROR, err); + break; + case ERROR_ACCESS_DENIED: + PR_SetError(PR_NO_ACCESS_RIGHTS_ERROR, err); + break; + case ERROR_INVALID_ADDRESS: + PR_SetError(PR_ACCESS_FAULT_ERROR, err); + break; + case ERROR_INVALID_NAME: + PR_SetError(PR_INVALID_ARGUMENT_ERROR, err); + break; + case ERROR_NOT_READY: + case ERROR_PATH_BUSY: + PR_SetError(PR_IO_ERROR, err); + break; + case ERROR_DRIVE_LOCKED: + PR_SetError(PR_FILE_IS_LOCKED_ERROR, err); + break; + case ERROR_FILENAME_EXCED_RANGE: + PR_SetError(PR_NAME_TOO_LONG_ERROR, err); + break; + case ERROR_TOO_MANY_OPEN_FILES: + PR_SetError(PR_SYS_DESC_TABLE_FULL_ERROR, err); + break; + case ERROR_PATH_NOT_FOUND: + PR_SetError(PR_FILE_NOT_FOUND_ERROR, err); + break; + case ERROR_NOT_ENOUGH_MEMORY: + case ERROR_MORE_DATA: + PR_SetError(PR_INSUFFICIENT_RESOURCES_ERROR, err); + break; + case ERROR_DISK_FULL: + case ERROR_HANDLE_DISK_FULL: + PR_SetError(PR_NO_DEVICE_SPACE_ERROR, err); + break; + case ERROR_WRITE_PROTECT: + PR_SetError(PR_NO_ACCESS_RIGHTS_ERROR, err); + break; + default: + PR_SetError(PR_UNKNOWN_ERROR, err); + break; + } +} + +void _MD_os2_map_rmdir_error(PRInt32 err) +{ + + switch (err) { + case ERROR_FILE_NOT_FOUND: + PR_SetError(PR_FILE_NOT_FOUND_ERROR, err); + break; + case ERROR_ACCESS_DENIED: + PR_SetError(PR_NO_ACCESS_RIGHTS_ERROR, err); + break; + case ERROR_INVALID_ADDRESS: + PR_SetError(PR_ACCESS_FAULT_ERROR, err); + break; + case ERROR_INVALID_NAME: + PR_SetError(PR_INVALID_ARGUMENT_ERROR, err); + break; + case ERROR_NOT_READY: + case ERROR_PATH_BUSY: + PR_SetError(PR_IO_ERROR, err); + break; + case ERROR_DRIVE_LOCKED: + PR_SetError(PR_FILE_IS_LOCKED_ERROR, err); + break; + case ERROR_FILENAME_EXCED_RANGE: + PR_SetError(PR_NAME_TOO_LONG_ERROR, err); + break; + case ERROR_TOO_MANY_OPEN_FILES: + PR_SetError(PR_SYS_DESC_TABLE_FULL_ERROR, err); + break; + case ERROR_PATH_NOT_FOUND: + PR_SetError(PR_FILE_NOT_FOUND_ERROR, err); + break; + case ERROR_NOT_ENOUGH_MEMORY: + case ERROR_MORE_DATA: + PR_SetError(PR_INSUFFICIENT_RESOURCES_ERROR, err); + break; + case ERROR_WRITE_PROTECT: + PR_SetError(PR_NO_ACCESS_RIGHTS_ERROR, err); + break; + default: + PR_SetError(PR_UNKNOWN_ERROR, err); + break; + } +} + +void _MD_os2_map_read_error(PRInt32 err) +{ + switch (err) { + case ERROR_ACCESS_DENIED: + PR_SetError(PR_NO_ACCESS_RIGHTS_ERROR, err); + break; + case ERROR_INVALID_HANDLE: + PR_SetError(PR_BAD_DESCRIPTOR_ERROR, err); + break; + case ERROR_INVALID_ADDRESS: + PR_SetError(PR_ACCESS_FAULT_ERROR, err); + break; + case ERROR_NOT_READY: + case ERROR_PATH_BUSY: + PR_SetError(PR_IO_ERROR, err); + break; + case ERROR_NOT_ENOUGH_MEMORY: + case ERROR_MORE_DATA: + PR_SetError(PR_INSUFFICIENT_RESOURCES_ERROR, err); + break; + case ERROR_DRIVE_LOCKED: + case ERROR_LOCKED: + case ERROR_SHARING_VIOLATION: + PR_SetError(PR_FILE_IS_LOCKED_ERROR, err); + break; + case ERROR_NETNAME_DELETED: + PR_SetError(PR_CONNECT_RESET_ERROR, err); + break; + case EBADF: + PR_SetError(PR_BAD_DESCRIPTOR_ERROR, err); + break; + case ENOTSOCK: + PR_SetError(PR_NOT_SOCKET_ERROR, err); + break; +#ifdef SOCEFAULT + case SOCEFAULT: + PR_SetError(PR_ACCESS_FAULT_ERROR, err); + break; +#endif + default: + PR_SetError(PR_UNKNOWN_ERROR, err); + break; + } +} + +void _MD_os2_map_transmitfile_error(PRInt32 err) +{ + switch (err) { + case ERROR_ACCESS_DENIED: + PR_SetError(PR_NO_ACCESS_RIGHTS_ERROR, err); + break; + case ERROR_INVALID_HANDLE: + PR_SetError(PR_BAD_DESCRIPTOR_ERROR, err); + break; + case ERROR_INVALID_ADDRESS: + PR_SetError(PR_ACCESS_FAULT_ERROR, err); + break; + case ERROR_NOT_READY: + case ERROR_PATH_BUSY: + PR_SetError(PR_IO_ERROR, err); + break; + case ERROR_NOT_ENOUGH_MEMORY: + case ERROR_MORE_DATA: + PR_SetError(PR_INSUFFICIENT_RESOURCES_ERROR, err); + break; + case ERROR_DRIVE_LOCKED: + case ERROR_LOCKED: + case ERROR_SHARING_VIOLATION: + PR_SetError(PR_FILE_IS_LOCKED_ERROR, err); + break; + case ERROR_FILENAME_EXCED_RANGE: + PR_SetError(PR_NAME_TOO_LONG_ERROR, err); + break; + case ERROR_TOO_MANY_OPEN_FILES: + PR_SetError(PR_SYS_DESC_TABLE_FULL_ERROR, err); + break; + case ERROR_PATH_NOT_FOUND: + PR_SetError(PR_FILE_NOT_FOUND_ERROR, err); + break; + case EBADF: + PR_SetError(PR_BAD_DESCRIPTOR_ERROR, err); + break; + case ENOTSOCK: + PR_SetError(PR_NOT_SOCKET_ERROR, err); + break; +#ifdef SOCEFAULT + case SOCEFAULT: + PR_SetError(PR_ACCESS_FAULT_ERROR, err); + break; +#endif + default: + PR_SetError(PR_UNKNOWN_ERROR, err); + break; + } +} + +void _MD_os2_map_write_error(PRInt32 err) +{ + switch (err) { + case ERROR_ACCESS_DENIED: + case ERROR_WRITE_PROTECT: + PR_SetError(PR_NO_ACCESS_RIGHTS_ERROR, err); + break; + case ERROR_INVALID_HANDLE: + PR_SetError(PR_BAD_DESCRIPTOR_ERROR, err); + break; + case ERROR_INVALID_ADDRESS: + PR_SetError(PR_ACCESS_FAULT_ERROR, err); + break; + case ERROR_NOT_READY: + case ERROR_PATH_BUSY: + PR_SetError(PR_IO_ERROR, err); + break; + case ERROR_DRIVE_LOCKED: + case ERROR_LOCKED: + case ERROR_SHARING_VIOLATION: + PR_SetError(PR_FILE_IS_LOCKED_ERROR, err); + break; + case ERROR_NOT_ENOUGH_MEMORY: + case ERROR_MORE_DATA: + case ERROR_DISK_FULL: + case ERROR_HANDLE_DISK_FULL: + case ENOSPC: + PR_SetError(PR_NO_DEVICE_SPACE_ERROR, err); + break; + case ERROR_NETNAME_DELETED: + PR_SetError(PR_CONNECT_RESET_ERROR, err); + break; + case EBADF: + PR_SetError(PR_BAD_DESCRIPTOR_ERROR, err); + break; + case ENOTSOCK: + PR_SetError(PR_NOT_SOCKET_ERROR, err); + break; + case EMSGSIZE: + case EINVAL: + PR_SetError(PR_INVALID_ARGUMENT_ERROR, err); + break; + case ENOBUFS: + PR_SetError(PR_INSUFFICIENT_RESOURCES_ERROR, err); + break; + case ECONNREFUSED: + PR_SetError(PR_CONNECT_REFUSED_ERROR, err); + break; + case EISCONN: + PR_SetError(PR_IS_CONNECTED_ERROR, err); + break; +#ifdef SOCEFAULT + case SOCEFAULT: + PR_SetError(PR_ACCESS_FAULT_ERROR, err); + break; +#endif + default: + PR_SetError(PR_UNKNOWN_ERROR, err); + break; + } +} + +void _MD_os2_map_lseek_error(PRInt32 err) +{ + switch (err) { + case ERROR_INVALID_HANDLE: + PR_SetError(PR_BAD_DESCRIPTOR_ERROR, err); + break; + case ERROR_SEEK_ON_DEVICE: + PR_SetError(PR_IO_ERROR, err); + break; + default: + PR_SetError(PR_UNKNOWN_ERROR, err); + break; + } +} + +void _MD_os2_map_fsync_error(PRInt32 err) +{ + switch (err) { + case ERROR_ACCESS_DENIED: + case ERROR_WRITE_PROTECT: + PR_SetError(PR_NO_ACCESS_RIGHTS_ERROR, err); + break; + case ERROR_INVALID_HANDLE: + PR_SetError(PR_BAD_DESCRIPTOR_ERROR, err); + break; + case ERROR_NOT_ENOUGH_MEMORY: + case ERROR_MORE_DATA: + PR_SetError(PR_INSUFFICIENT_RESOURCES_ERROR, err); + break; + case ERROR_DISK_FULL: + case ERROR_HANDLE_DISK_FULL: + PR_SetError(PR_NO_DEVICE_SPACE_ERROR, err); + break; + default: + PR_SetError(PR_UNKNOWN_ERROR, err); + break; + } +} + +void _MD_os2_map_close_error(PRInt32 err) +{ + switch (err) { + case ERROR_INVALID_HANDLE: + case EBADF: + PR_SetError(PR_BAD_DESCRIPTOR_ERROR, err); + break; + case ERROR_NOT_READY: + case ERROR_PATH_BUSY: + PR_SetError(PR_IO_ERROR, err); + break; + default: + PR_SetError(PR_UNKNOWN_ERROR, err); + break; + } +} + +void _MD_os2_map_socket_error(PRInt32 err) +{ + switch (err) { + case EPROTONOSUPPORT: + PR_SetError(PR_PROTOCOL_NOT_SUPPORTED_ERROR, err); + break; + case EACCES: + PR_SetError(PR_NO_ACCESS_RIGHTS_ERROR, err); + break; + case ERROR_NOT_ENOUGH_MEMORY: + case ERROR_MORE_DATA: + case ENOBUFS: + PR_SetError(PR_INSUFFICIENT_RESOURCES_ERROR, err); + break; + default: + PR_SetError(PR_UNKNOWN_ERROR, err); + break; + } +} + +void _MD_os2_map_recv_error(PRInt32 err) +{ + switch (err) { + case EWOULDBLOCK: + PR_SetError(PR_WOULD_BLOCK_ERROR, err); + break; + case EBADF: + PR_SetError(PR_BAD_DESCRIPTOR_ERROR, err); + break; + case ENOTSOCK: + PR_SetError(PR_NOT_SOCKET_ERROR, err); + break; +#ifdef SOCEFAULT + case SOCEFAULT: + PR_SetError(PR_ACCESS_FAULT_ERROR, err); + break; +#endif + case ERROR_NETNAME_DELETED: + PR_SetError(PR_CONNECT_RESET_ERROR, err); + break; + default: + PR_SetError(PR_UNKNOWN_ERROR, err); + break; + } +} + +void _MD_os2_map_recvfrom_error(PRInt32 err) +{ + switch (err) { + case EWOULDBLOCK: + PR_SetError(PR_WOULD_BLOCK_ERROR, err); + break; + case EBADF: + PR_SetError(PR_BAD_DESCRIPTOR_ERROR, err); + break; + case ENOTSOCK: + PR_SetError(PR_NOT_SOCKET_ERROR, err); + break; +#ifdef SOCEFAULT + case SOCEFAULT: + PR_SetError(PR_ACCESS_FAULT_ERROR, err); + break; +#endif + case ERROR_NETNAME_DELETED: + PR_SetError(PR_CONNECT_RESET_ERROR, err); + break; + default: + PR_SetError(PR_UNKNOWN_ERROR, err); + break; + } +} + +void _MD_os2_map_send_error(PRInt32 err) +{ + switch (err) { + case EWOULDBLOCK: + PR_SetError(PR_WOULD_BLOCK_ERROR, err); + break; + case EBADF: + PR_SetError(PR_BAD_DESCRIPTOR_ERROR, err); + break; + case ENOTSOCK: + PR_SetError(PR_NOT_SOCKET_ERROR, err); + break; + case EMSGSIZE: + case EINVAL: + PR_SetError(PR_INVALID_ARGUMENT_ERROR, err); + break; + case ENOBUFS: + PR_SetError(PR_INSUFFICIENT_RESOURCES_ERROR, err); + break; + case ECONNREFUSED: + PR_SetError(PR_CONNECT_REFUSED_ERROR, err); + break; + case EISCONN: + PR_SetError(PR_IS_CONNECTED_ERROR, err); + break; +#ifdef SOCEFAULT + case SOCEFAULT: + PR_SetError(PR_ACCESS_FAULT_ERROR, err); + break; +#endif + case ERROR_NETNAME_DELETED: + PR_SetError(PR_CONNECT_RESET_ERROR, err); + break; + default: + PR_SetError(PR_UNKNOWN_ERROR, err); + break; + } +} + +void _MD_os2_map_sendto_error(PRInt32 err) +{ + _MD_os2_map_default_error(err); +} + +void _MD_os2_map_writev_error(int err) +{ + _MD_os2_map_default_error(err); +} + +void _MD_os2_map_accept_error(PRInt32 err) +{ + _MD_os2_map_default_error(err); +} + +void _MD_os2_map_acceptex_error(PRInt32 err) +{ + switch (err) { + case ERROR_INVALID_HANDLE: + PR_SetError(PR_BAD_DESCRIPTOR_ERROR, err); + break; + case ERROR_INVALID_ADDRESS: + PR_SetError(PR_ACCESS_FAULT_ERROR, err); + break; + case ERROR_NOT_ENOUGH_MEMORY: + case ERROR_MORE_DATA: + PR_SetError(PR_INSUFFICIENT_RESOURCES_ERROR, err); + break; + default: + PR_SetError(PR_UNKNOWN_ERROR, err); + break; + } +} + +/* + * An error code of 0 means that the nonblocking connect succeeded. + */ + +int _MD_os2_get_nonblocking_connect_error(int osfd) +{ + int err; + int len = sizeof(err); + if (getsockopt(osfd, SOL_SOCKET, SO_ERROR, (char *) &err, &len) == -1) { + return sock_errno(); + } else { + return err; + } +} + +void _MD_os2_map_connect_error(PRInt32 err) +{ + switch (err) { + case EWOULDBLOCK: + PR_SetError(PR_WOULD_BLOCK_ERROR, err); + break; + case EINPROGRESS: + PR_SetError(PR_IN_PROGRESS_ERROR, err); + break; + case EALREADY: + case EINVAL: + PR_SetError(PR_ALREADY_INITIATED_ERROR, err); + break; + case EBADF: + PR_SetError(PR_BAD_DESCRIPTOR_ERROR, err); + break; + case EADDRNOTAVAIL: + PR_SetError(PR_ADDRESS_NOT_AVAILABLE_ERROR, err); + break; + case ENOTSOCK: + PR_SetError(PR_NOT_SOCKET_ERROR, err); + break; + case EAFNOSUPPORT: + PR_SetError(PR_ADDRESS_NOT_SUPPORTED_ERROR, err); + break; + case ETIMEDOUT: + PR_SetError(PR_IO_TIMEOUT_ERROR, err); + break; + case ECONNREFUSED: + PR_SetError(PR_CONNECT_REFUSED_ERROR, err); + break; + case ENETUNREACH: + PR_SetError(PR_NETWORK_UNREACHABLE_ERROR, err); + break; + case EADDRINUSE: + PR_SetError(PR_ADDRESS_IN_USE_ERROR, err); + break; + case EISCONN: + PR_SetError(PR_IS_CONNECTED_ERROR, err); + break; +#ifdef SOCEFAULT + case SOCEFAULT: + PR_SetError(PR_ACCESS_FAULT_ERROR, err); + break; +#endif + default: + PR_SetError(PR_UNKNOWN_ERROR, err); + break; + } +} + +void _MD_os2_map_bind_error(PRInt32 err) +{ + switch (err) { + case EBADF: + PR_SetError(PR_BAD_DESCRIPTOR_ERROR, err); + break; + case ENOTSOCK: + PR_SetError(PR_NOT_SOCKET_ERROR, err); + break; +#ifdef SOCEFAULT + case SOCEFAULT: + PR_SetError(PR_ACCESS_FAULT_ERROR, err); + break; +#endif + case EADDRNOTAVAIL: + PR_SetError(PR_ADDRESS_NOT_AVAILABLE_ERROR, err); + break; + case EADDRINUSE: + PR_SetError(PR_ADDRESS_IN_USE_ERROR, err); + break; + case EACCES: + PR_SetError(PR_NO_ACCESS_RIGHTS_ERROR, err); + break; + case EINVAL: + PR_SetError(PR_SOCKET_ADDRESS_IS_BOUND_ERROR, err); + break; + default: + PR_SetError(PR_UNKNOWN_ERROR, err); + break; + } +} + +void _MD_os2_map_listen_error(PRInt32 err) +{ + switch (err) { + case EBADF: + PR_SetError(PR_BAD_DESCRIPTOR_ERROR, err); + break; + case ENOTSOCK: + PR_SetError(PR_NOT_SOCKET_ERROR, err); + break; + case EOPNOTSUPP: + PR_SetError(PR_NOT_TCP_SOCKET_ERROR, err); + break; + default: + PR_SetError(PR_UNKNOWN_ERROR, err); + break; + } +} + +void _MD_os2_map_shutdown_error(PRInt32 err) +{ + switch (err) { + case EBADF: + PR_SetError(PR_BAD_DESCRIPTOR_ERROR, err); + break; + case ENOTSOCK: + PR_SetError(PR_NOT_SOCKET_ERROR, err); + break; + case ENOTCONN: + PR_SetError(PR_NOT_CONNECTED_ERROR, err); + break; + default: + PR_SetError(PR_UNKNOWN_ERROR, err); + break; + } +} + +void _MD_os2_map_socketpair_error(PRInt32 err) +{ + switch (err) { + case ENOMEM: + PR_SetError(PR_INSUFFICIENT_RESOURCES_ERROR, err); + break; + case EAFNOSUPPORT: + PR_SetError(PR_ADDRESS_NOT_SUPPORTED_ERROR, err); + break; + case EPROTONOSUPPORT: + PR_SetError(PR_PROTOCOL_NOT_SUPPORTED_ERROR, err); + break; + case EOPNOTSUPP: + PR_SetError(PR_NOT_TCP_SOCKET_ERROR, err); + break; + case EPROTOTYPE: + PR_SetError(PR_ADDRESS_NOT_SUPPORTED_ERROR, err); + break; + default: + _MD_os2_map_default_error(err); + return; + } +} + +void _MD_os2_map_getsockname_error(PRInt32 err) +{ + switch (err) { + case EBADF: + PR_SetError(PR_BAD_DESCRIPTOR_ERROR, err); + break; + case ENOTSOCK: + PR_SetError(PR_NOT_SOCKET_ERROR, err); + break; +#ifdef SOCEFAULT + case SOCEFAULT: + PR_SetError(PR_ACCESS_FAULT_ERROR, err); + break; +#endif + case ENOBUFS: + PR_SetError(PR_INSUFFICIENT_RESOURCES_ERROR, err); + break; + default: + PR_SetError(PR_UNKNOWN_ERROR, err); + break; + } +} + +void _MD_os2_map_getpeername_error(PRInt32 err) +{ + + switch (err) { + case EBADF: + PR_SetError(PR_BAD_DESCRIPTOR_ERROR, err); + break; + case ENOTSOCK: + PR_SetError(PR_NOT_SOCKET_ERROR, err); + break; + case ENOTCONN: + PR_SetError(PR_NOT_CONNECTED_ERROR, err); + break; +#ifdef SOCEFAULT + case SOCEFAULT: + PR_SetError(PR_ACCESS_FAULT_ERROR, err); + break; +#endif + case ENOBUFS: + PR_SetError(PR_INSUFFICIENT_RESOURCES_ERROR, err); + break; + default: + PR_SetError(PR_UNKNOWN_ERROR, err); + break; + } +} + +void _MD_os2_map_getsockopt_error(PRInt32 err) +{ + switch (err) { + case EBADF: + PR_SetError(PR_BAD_DESCRIPTOR_ERROR, err); + break; + case ENOTSOCK: + PR_SetError(PR_NOT_SOCKET_ERROR, err); + break; + case ENOPROTOOPT: + PR_SetError(PR_INVALID_ARGUMENT_ERROR, err); + break; +#ifdef SOCEFAULT + case SOCEFAULT: + PR_SetError(PR_ACCESS_FAULT_ERROR, err); + break; +#endif + case EINVAL: + PR_SetError(PR_BUFFER_OVERFLOW_ERROR, err); + break; + default: + PR_SetError(PR_UNKNOWN_ERROR, err); + break; + } +} + +void _MD_os2_map_setsockopt_error(PRInt32 err) +{ + switch (err) { + case EBADF: + PR_SetError(PR_BAD_DESCRIPTOR_ERROR, err); + break; + case ENOTSOCK: + PR_SetError(PR_NOT_SOCKET_ERROR, err); + break; + case ENOPROTOOPT: + PR_SetError(PR_INVALID_ARGUMENT_ERROR, err); + break; +#ifdef SOCEFAULT + case SOCEFAULT: + PR_SetError(PR_ACCESS_FAULT_ERROR, err); + break; +#endif + case EINVAL: + PR_SetError(PR_BUFFER_OVERFLOW_ERROR, err); + break; + default: + PR_SetError(PR_UNKNOWN_ERROR, err); + break; + } +} + +void _MD_os2_map_open_error(PRInt32 err) +{ + switch (err) { + case ERROR_ALREADY_EXISTS: + case ERROR_FILE_EXISTS: + PR_SetError(PR_FILE_EXISTS_ERROR, err); + break; + case ERROR_FILE_NOT_FOUND: + PR_SetError(PR_FILE_NOT_FOUND_ERROR, err); + break; + case ERROR_ACCESS_DENIED: + PR_SetError(PR_NO_ACCESS_RIGHTS_ERROR, err); + break; + case ERROR_INVALID_ADDRESS: + PR_SetError(PR_ACCESS_FAULT_ERROR, err); + break; + case ERROR_INVALID_NAME: + PR_SetError(PR_INVALID_ARGUMENT_ERROR, err); + break; + case ERROR_NOT_READY: + case ERROR_OPEN_FAILED: + case ERROR_PATH_BUSY: + PR_SetError(PR_IO_ERROR, err); + break; + case ERROR_DRIVE_LOCKED: + PR_SetError(PR_FILE_IS_LOCKED_ERROR, err); + break; + case ERROR_FILENAME_EXCED_RANGE: + PR_SetError(PR_NAME_TOO_LONG_ERROR, err); + break; + case ERROR_TOO_MANY_OPEN_FILES: + PR_SetError(PR_SYS_DESC_TABLE_FULL_ERROR, err); + break; + case ERROR_PATH_NOT_FOUND: + PR_SetError(PR_FILE_NOT_FOUND_ERROR, err); + break; + case ERROR_NOT_ENOUGH_MEMORY: + case ERROR_MORE_DATA: + PR_SetError(PR_INSUFFICIENT_RESOURCES_ERROR, err); + break; + case ERROR_DISK_FULL: + case ERROR_HANDLE_DISK_FULL: + PR_SetError(PR_NO_DEVICE_SPACE_ERROR, err); + break; + case ERROR_WRITE_PROTECT: + PR_SetError(PR_NO_ACCESS_RIGHTS_ERROR, err); + break; + default: + PR_SetError(PR_UNKNOWN_ERROR, err); + break; + } +} + +void _MD_os2_map_gethostname_error(PRInt32 err) +{ + switch (err) { +#ifdef SOCEFAULT + case SOCEFAULT: + PR_SetError(PR_ACCESS_FAULT_ERROR, err); + break; +#endif + case ENETDOWN: + case EINPROGRESS: + default: + PR_SetError(PR_UNKNOWN_ERROR, err); + break; + } +} + +void _MD_os2_map_select_error(PRInt32 err) +{ + PRErrorCode prerror; + + switch (err) { + /* + * OS/2 select() only works on sockets. So in this + * context, ENOTSOCK is equivalent to EBADF on Unix. + */ + case ENOTSOCK: + prerror = PR_BAD_DESCRIPTOR_ERROR; + break; + case EINVAL: + prerror = PR_INVALID_ARGUMENT_ERROR; + break; +#ifdef SOCEFAULT + case SOCEFAULT: + prerror = PR_ACCESS_FAULT_ERROR; + break; +#endif + default: + prerror = PR_UNKNOWN_ERROR; + } + PR_SetError(prerror, err); +} + +void _MD_os2_map_lockf_error(PRInt32 err) +{ + switch (err) { + case ERROR_ACCESS_DENIED: + PR_SetError(PR_NO_ACCESS_RIGHTS_ERROR, err); + break; + case ERROR_INVALID_HANDLE: + PR_SetError(PR_BAD_DESCRIPTOR_ERROR, err); + break; + case ERROR_INVALID_ADDRESS: + PR_SetError(PR_ACCESS_FAULT_ERROR, err); + break; + case ERROR_DRIVE_LOCKED: + case ERROR_LOCKED: + case ERROR_SHARING_VIOLATION: + PR_SetError(PR_FILE_IS_LOCKED_ERROR, err); + break; + case ERROR_NOT_ENOUGH_MEMORY: + case ERROR_MORE_DATA: + PR_SetError(PR_INSUFFICIENT_RESOURCES_ERROR, err); + break; + default: + PR_SetError(PR_UNKNOWN_ERROR, err); + break; + } +} diff --git a/nsprpub/pr/src/md/os2/os2cv.c b/nsprpub/pr/src/md/os2/os2cv.c new file mode 100644 index 0000000000..91e85c0ebd --- /dev/null +++ b/nsprpub/pr/src/md/os2/os2cv.c @@ -0,0 +1,334 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +/* + * os2cv.c -- OS/2 Machine-Dependent Code for Condition Variables + * + * We implement our own condition variable wait queue. Each thread + * has a semaphore object (thread->md.blocked_sema) to block on while + * waiting on a condition variable. + * + * We use a deferred condition notify algorithm. When PR_NotifyCondVar + * or PR_NotifyAllCondVar is called, the condition notifies are simply + * recorded in the _MDLock structure. We defer the condition notifies + * until right after we unlock the lock. This way the awakened threads + * have a better chance to reaquire the lock. + */ + +#include "primpl.h" + +/* + * AddThreadToCVWaitQueueInternal -- + * + * Add the thread to the end of the condition variable's wait queue. + * The CV's lock must be locked when this function is called. + */ + +static void +AddThreadToCVWaitQueueInternal(PRThread *thred, struct _MDCVar *cv) +{ + PR_ASSERT((cv->waitTail != NULL && cv->waitHead != NULL) + || (cv->waitTail == NULL && cv->waitHead == NULL)); + cv->nwait += 1; + thred->md.inCVWaitQueue = PR_TRUE; + thred->md.next = NULL; + thred->md.prev = cv->waitTail; + if (cv->waitHead == NULL) { + cv->waitHead = thred; + } else { + cv->waitTail->md.next = thred; + } + cv->waitTail = thred; +} + +/* + * md_UnlockAndPostNotifies -- + * + * Unlock the lock, and then do the deferred condition notifies. + * If waitThred and waitCV are not NULL, waitThred is added to + * the wait queue of waitCV before the lock is unlocked. + * + * This function is called by _PR_MD_WAIT_CV and _PR_MD_UNLOCK, + * the two places where a lock is unlocked. + */ +void +md_UnlockAndPostNotifies( + _MDLock *lock, + PRThread *waitThred, + _MDCVar *waitCV) +{ + PRIntn index; + _MDNotified post; + _MDNotified *notified, *prev = NULL; + + /* + * Time to actually notify any conditions that were affected + * while the lock was held. Get a copy of the list that's in + * the lock structure and then zero the original. If it's + * linked to other such structures, we own that storage. + */ + post = lock->notified; /* a safe copy; we own the lock */ + +#if defined(DEBUG) + memset(&lock->notified, 0, sizeof(_MDNotified)); /* reset */ +#else + lock->notified.length = 0; /* these are really sufficient */ + lock->notified.link = NULL; +#endif + + /* + * Figure out how many threads we need to wake up. + */ + notified = &post; /* this is where we start */ + do { + for (index = 0; index < notified->length; ++index) { + _MDCVar *cv = notified->cv[index].cv; + PRThread *thred; + int i; + + /* Fast special case: no waiting threads */ + if (cv->waitHead == NULL) { + notified->cv[index].notifyHead = NULL; + continue; + } + + /* General case */ + if (-1 == notified->cv[index].times) { + /* broadcast */ + thred = cv->waitHead; + while (thred != NULL) { + thred->md.inCVWaitQueue = PR_FALSE; + thred = thred->md.next; + } + notified->cv[index].notifyHead = cv->waitHead; + cv->waitHead = cv->waitTail = NULL; + cv->nwait = 0; + } else { + thred = cv->waitHead; + i = notified->cv[index].times; + while (thred != NULL && i > 0) { + thred->md.inCVWaitQueue = PR_FALSE; + thred = thred->md.next; + i--; + } + notified->cv[index].notifyHead = cv->waitHead; + cv->waitHead = thred; + if (cv->waitHead == NULL) { + cv->waitTail = NULL; + } else { + if (cv->waitHead->md.prev != NULL) { + cv->waitHead->md.prev->md.next = NULL; + cv->waitHead->md.prev = NULL; + } + } + cv->nwait -= notified->cv[index].times - i; + } + } + notified = notified->link; + } while (NULL != notified); + + if (waitThred) { + AddThreadToCVWaitQueueInternal(waitThred, waitCV); + } + + /* Release the lock before notifying */ + DosReleaseMutexSem(lock->mutex); + + notified = &post; /* this is where we start */ + do { + for (index = 0; index < notified->length; ++index) { + PRThread *thred; + PRThread *next; + + thred = notified->cv[index].notifyHead; + while (thred != NULL) { + BOOL rv; + + next = thred->md.next; + thred->md.prev = thred->md.next = NULL; + rv = DosPostEventSem(thred->md.blocked_sema); + PR_ASSERT(rv == NO_ERROR); + thred = next; + } + } + prev = notified; + notified = notified->link; + if (&post != prev) { + PR_DELETE(prev); + } + } while (NULL != notified); +} + +/* + * Notifies just get posted to the protecting mutex. The + * actual notification is done when the lock is released so that + * MP systems don't contend for a lock that they can't have. + */ +static void md_PostNotifyToCvar(_MDCVar *cvar, _MDLock *lock, + PRBool broadcast) +{ + PRIntn index = 0; + _MDNotified *notified = &lock->notified; + + while (1) { + for (index = 0; index < notified->length; ++index) { + if (notified->cv[index].cv == cvar) { + if (broadcast) { + notified->cv[index].times = -1; + } else if (-1 != notified->cv[index].times) { + notified->cv[index].times += 1; + } + return; + } + } + /* if not full, enter new CV in this array */ + if (notified->length < _MD_CV_NOTIFIED_LENGTH) { + break; + } + + /* if there's no link, create an empty array and link it */ + if (NULL == notified->link) { + notified->link = PR_NEWZAP(_MDNotified); + } + + notified = notified->link; + } + + /* A brand new entry in the array */ + notified->cv[index].times = (broadcast) ? -1 : 1; + notified->cv[index].cv = cvar; + notified->length += 1; +} + +/* + * _PR_MD_NEW_CV() -- Creating new condition variable + * ... Solaris uses cond_init() in similar function. + * + * returns: -1 on failure + * 0 when it succeeds. + * + */ +PRInt32 +_PR_MD_NEW_CV(_MDCVar *cv) +{ + cv->magic = _MD_MAGIC_CV; + /* + * The waitHead, waitTail, and nwait fields are zeroed + * when the PRCondVar structure is created. + */ + return 0; +} + +void _PR_MD_FREE_CV(_MDCVar *cv) +{ + cv->magic = (PRUint32)-1; + return; +} + +/* + * _PR_MD_WAIT_CV() -- Wait on condition variable + */ +void +_PR_MD_WAIT_CV(_MDCVar *cv, _MDLock *lock, PRIntervalTime timeout ) +{ + PRThread *thred = _PR_MD_CURRENT_THREAD(); + ULONG rv, count; + ULONG msecs = (timeout == PR_INTERVAL_NO_TIMEOUT) ? + SEM_INDEFINITE_WAIT : PR_IntervalToMilliseconds(timeout); + + /* + * If we have pending notifies, post them now. + */ + if (0 != lock->notified.length) { + md_UnlockAndPostNotifies(lock, thred, cv); + } else { + AddThreadToCVWaitQueueInternal(thred, cv); + DosReleaseMutexSem(lock->mutex); + } + + /* Wait for notification or timeout; don't really care which */ + rv = DosWaitEventSem(thred->md.blocked_sema, msecs); + if (rv == NO_ERROR) { + DosResetEventSem(thred->md.blocked_sema, &count); + } + + DosRequestMutexSem((lock->mutex), SEM_INDEFINITE_WAIT); + + PR_ASSERT(rv == NO_ERROR || rv == ERROR_TIMEOUT); + + if(rv == ERROR_TIMEOUT) + { + if (thred->md.inCVWaitQueue) { + PR_ASSERT((cv->waitTail != NULL && cv->waitHead != NULL) + || (cv->waitTail == NULL && cv->waitHead == NULL)); + cv->nwait -= 1; + thred->md.inCVWaitQueue = PR_FALSE; + if (cv->waitHead == thred) { + cv->waitHead = thred->md.next; + if (cv->waitHead == NULL) { + cv->waitTail = NULL; + } else { + cv->waitHead->md.prev = NULL; + } + } else { + PR_ASSERT(thred->md.prev != NULL); + thred->md.prev->md.next = thred->md.next; + if (thred->md.next != NULL) { + thred->md.next->md.prev = thred->md.prev; + } else { + PR_ASSERT(cv->waitTail == thred); + cv->waitTail = thred->md.prev; + } + } + thred->md.next = thred->md.prev = NULL; + } else { + /* + * This thread must have been notified, but the + * SemRelease call happens after SemRequest + * times out. Wait on the semaphore again to make it + * non-signaled. We assume this wait won't take long. + */ + rv = DosWaitEventSem(thred->md.blocked_sema, SEM_INDEFINITE_WAIT); + if (rv == NO_ERROR) { + DosResetEventSem(thred->md.blocked_sema, &count); + } + PR_ASSERT(rv == NO_ERROR); + } + } + PR_ASSERT(thred->md.inCVWaitQueue == PR_FALSE); + return; +} /* --- end _PR_MD_WAIT_CV() --- */ + +void +_PR_MD_NOTIFY_CV(_MDCVar *cv, _MDLock *lock) +{ + md_PostNotifyToCvar(cv, lock, PR_FALSE); + return; +} + +PRStatus +_PR_MD_NEW_LOCK(_MDLock *lock) +{ + DosCreateMutexSem(0, &(lock->mutex), 0, 0); + (lock)->notified.length=0; + (lock)->notified.link=NULL; + return PR_SUCCESS; +} + +void +_PR_MD_NOTIFYALL_CV(_MDCVar *cv, _MDLock *lock) +{ + md_PostNotifyToCvar(cv, lock, PR_TRUE); + return; +} + +void _PR_MD_UNLOCK(_MDLock *lock) +{ + if (0 != lock->notified.length) { + md_UnlockAndPostNotifies(lock, NULL, NULL); + } else { + DosReleaseMutexSem(lock->mutex); + } +} diff --git a/nsprpub/pr/src/md/os2/os2emx.s b/nsprpub/pr/src/md/os2/os2emx.s new file mode 100644 index 0000000000..ef18e3bb14 --- /dev/null +++ b/nsprpub/pr/src/md/os2/os2emx.s @@ -0,0 +1,82 @@ +/ -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- +/ +/ This Source Code Form is subject to the terms of the Mozilla Public +/ License, v. 2.0. If a copy of the MPL was not distributed with this +/ file, You can obtain one at http://mozilla.org/MPL/2.0/. + +/ PRInt32 __PR_MD_ATOMIC_INCREMENT(PRInt32 *val) +/ +/ Atomically increment the integer pointed to by 'val' and return +/ the result of the increment. +/ + .text + .globl __PR_MD_ATOMIC_INCREMENT + .align 4 +__PR_MD_ATOMIC_INCREMENT: + movl 4(%esp), %ecx + movl $1, %eax + lock + xaddl %eax, (%ecx) + incl %eax + ret + +/ PRInt32 __PR_MD_ATOMIC_DECREMENT(PRInt32 *val) +/ +/ Atomically decrement the integer pointed to by 'val' and return +/ the result of the decrement. +/ + .text + .globl __PR_MD_ATOMIC_DECREMENT + .align 4 +__PR_MD_ATOMIC_DECREMENT: + movl 4(%esp), %ecx + movl $-1, %eax + lock + xaddl %eax, (%ecx) + decl %eax + ret + +/ PRInt32 __PR_MD_ATOMIC_SET(PRInt32 *val, PRInt32 newval) +/ +/ Atomically set the integer pointed to by 'val' to the new +/ value 'newval' and return the old value. +/ +/ An alternative implementation: +/ .text +/ .globl __PR_MD_ATOMIC_SET +/ .align 4 +/__PR_MD_ATOMIC_SET: +/ movl 4(%esp), %ecx +/ movl 8(%esp), %edx +/ movl (%ecx), %eax +/retry: +/ lock +/ cmpxchgl %edx, (%ecx) +/ jne retry +/ ret +/ + .text + .globl __PR_MD_ATOMIC_SET + .align 4 +__PR_MD_ATOMIC_SET: + movl 4(%esp), %ecx + movl 8(%esp), %eax + xchgl %eax, (%ecx) + ret + +/ PRInt32 __PR_MD_ATOMIC_ADD(PRInt32 *ptr, PRInt32 val) +/ +/ Atomically add 'val' to the integer pointed to by 'ptr' +/ and return the result of the addition. +/ + .text + .globl __PR_MD_ATOMIC_ADD + .align 4 +__PR_MD_ATOMIC_ADD: + movl 4(%esp), %ecx + movl 8(%esp), %eax + movl %eax, %edx + lock + xaddl %eax, (%ecx) + addl %edx, %eax + ret diff --git a/nsprpub/pr/src/md/os2/os2gc.c b/nsprpub/pr/src/md/os2/os2gc.c new file mode 100644 index 0000000000..79b6de5736 --- /dev/null +++ b/nsprpub/pr/src/md/os2/os2gc.c @@ -0,0 +1,58 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +/* + * GC related routines + * + */ +#include "primpl.h" + +PRWord *_MD_HomeGCRegisters(PRThread *t, int isCurrent, int *np) +{ + CONTEXTRECORD context; + context.ContextFlags = CONTEXT_INTEGER; + + if (_PR_IS_NATIVE_THREAD(t)) { + context.ContextFlags |= CONTEXT_CONTROL; + if (QueryThreadContext(t->md.handle, CONTEXT_CONTROL, &context)) { + t->md.gcContext[0] = context.ctx_RegEax; + t->md.gcContext[1] = context.ctx_RegEbx; + t->md.gcContext[2] = context.ctx_RegEcx; + t->md.gcContext[3] = context.ctx_RegEdx; + t->md.gcContext[4] = context.ctx_RegEsi; + t->md.gcContext[5] = context.ctx_RegEdi; + t->md.gcContext[6] = context.ctx_RegEsp; + t->md.gcContext[7] = context.ctx_RegEbp; + *np = PR_NUM_GCREGS; + } else { + PR_ASSERT(0);/* XXX */ + } + } + return (PRWord *)&t->md.gcContext; +} + +/* This function is not used right now, but is left as a reference. + * If you ever need to get the fiberID from the currently running fiber, + * this is it. + */ +void * +GetMyFiberID() +{ + void *fiberData = 0; + + /* A pointer to our tib entry is found at FS:[18] + * At offset 10h is the fiberData pointer. The context of the + * fiber is stored in there. + */ +#ifdef HAVE_ASM + __asm { + mov EDX, FS:[18h] + mov EAX, DWORD PTR [EDX+10h] + mov [fiberData], EAX + } +#endif + + return fiberData; +} diff --git a/nsprpub/pr/src/md/os2/os2inrval.c b/nsprpub/pr/src/md/os2/os2inrval.c new file mode 100644 index 0000000000..bd283f06d9 --- /dev/null +++ b/nsprpub/pr/src/md/os2/os2inrval.c @@ -0,0 +1,81 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +/* + * OS/2 interval timers + * + */ + +#include "primpl.h" + +static PRBool useHighResTimer = PR_FALSE; +PRIntervalTime _os2_ticksPerSec = -1; +PRIntn _os2_bitShift = 0; +PRInt32 _os2_highMask = 0; + +void +_PR_MD_INTERVAL_INIT() +{ + char *envp; + ULONG timerFreq; + APIRET rc; + + if ((envp = getenv("NSPR_OS2_NO_HIRES_TIMER")) != NULL) { + if (atoi(envp) == 1) { + return; + } + } + + timerFreq = 0; /* OS/2 high-resolution timer frequency in Hz */ + rc = DosTmrQueryFreq(&timerFreq); + if (NO_ERROR == rc) { + useHighResTimer = PR_TRUE; + PR_ASSERT(timerFreq != 0); + while (timerFreq > PR_INTERVAL_MAX) { + timerFreq >>= 1; + _os2_bitShift++; + _os2_highMask = (_os2_highMask << 1)+1; + } + + _os2_ticksPerSec = timerFreq; + PR_ASSERT(_os2_ticksPerSec > PR_INTERVAL_MIN); + } +} + +PRIntervalTime +_PR_MD_GET_INTERVAL() +{ + if (useHighResTimer) { + QWORD timestamp; + PRInt32 top; + APIRET rc = DosTmrQueryTime(×tamp); + if (NO_ERROR != rc) { + return -1; + } + /* Sadly, nspr requires the interval to range from 1000 ticks per + * second to only 100000 ticks per second. DosTmrQueryTime is too + * high resolution... + */ + top = timestamp.ulHi & _os2_highMask; + top = top << (32 - _os2_bitShift); + timestamp.ulLo = timestamp.ulLo >> _os2_bitShift; + timestamp.ulLo = timestamp.ulLo + top; + return (PRUint32)timestamp.ulLo; + } else { + ULONG msCount = -1; + DosQuerySysInfo(QSV_MS_COUNT, QSV_MS_COUNT, &msCount, sizeof(msCount)); + return msCount; + } +} + +PRIntervalTime +_PR_MD_INTERVAL_PER_SEC() +{ + if (useHighResTimer) { + return _os2_ticksPerSec; + } else { + return 1000; + } +} diff --git a/nsprpub/pr/src/md/os2/os2io.c b/nsprpub/pr/src/md/os2/os2io.c new file mode 100644 index 0000000000..639a0d3880 --- /dev/null +++ b/nsprpub/pr/src/md/os2/os2io.c @@ -0,0 +1,968 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +/* OS2 IO module + * + * Assumes synchronous I/O. + * + */ + +#include "primpl.h" +#include "prio.h" +#include <ctype.h> +#include <string.h> +#include <limits.h> +#include <dirent.h> +#include <fcntl.h> +#include <io.h> + +struct _MDLock _pr_ioq_lock; + +static PRBool isWSEB = PR_FALSE; /* whether we are using an OS/2 kernel that supports large files */ + +typedef APIRET (*DosOpenLType)(PSZ pszFileName, PHFILE pHf, PULONG pulAction, + LONGLONG cbFile, ULONG ulAttribute, + ULONG fsOpenFlags, ULONG fsOpenMode, + PEAOP2 peaop2); + +typedef APIRET (*DosSetFileLocksLType)(HFILE hFile, PFILELOCKL pflUnlock, + PFILELOCKL pflLock, ULONG timeout, + ULONG flags); + +typedef APIRET (*DosSetFilePtrLType)(HFILE hFile, LONGLONG ib, ULONG method, + PLONGLONG ibActual); + +DosOpenLType myDosOpenL; +DosSetFileLocksLType myDosSetFileLocksL; +DosSetFilePtrLType myDosSetFilePtrL; + +void +_PR_MD_INIT_IO() +{ + APIRET rc; + HMODULE module; + + sock_init(); + + rc = DosLoadModule(NULL, 0, "DOSCALL1", &module); + if (rc != NO_ERROR) + { + return; + } + rc = DosQueryProcAddr(module, 981, NULL, (PFN*) &myDosOpenL); + if (rc != NO_ERROR) + { + return; + } + rc = DosQueryProcAddr(module, 986, NULL, (PFN*) &myDosSetFileLocksL); + if (rc != NO_ERROR) + { + return; + } + rc = DosQueryProcAddr(module, 988, NULL, (PFN*) &myDosSetFilePtrL); + if (rc != NO_ERROR) + { + return; + } + isWSEB = PR_TRUE; +} + +PRStatus +_PR_MD_WAIT(PRThread *thread, PRIntervalTime ticks) +{ + PRInt32 rv; + ULONG count; + + PRUint32 msecs = (ticks == PR_INTERVAL_NO_TIMEOUT) ? + SEM_INDEFINITE_WAIT : PR_IntervalToMilliseconds(ticks); + rv = DosWaitEventSem(thread->md.blocked_sema, msecs); + DosResetEventSem(thread->md.blocked_sema, &count); + switch(rv) + { + case NO_ERROR: + return PR_SUCCESS; + break; + case ERROR_TIMEOUT: + _PR_THREAD_LOCK(thread); + if (thread->state == _PR_IO_WAIT) { + ; + } else { + if (thread->wait.cvar != NULL) { + thread->wait.cvar = NULL; + _PR_THREAD_UNLOCK(thread); + } else { + /* The CVAR was notified just as the timeout + * occurred. This led to us being notified twice. + * call SemRequest() to clear the semaphore. + */ + _PR_THREAD_UNLOCK(thread); + rv = DosWaitEventSem(thread->md.blocked_sema, 0); + DosResetEventSem(thread->md.blocked_sema, &count); + PR_ASSERT(rv == NO_ERROR); + } + } + return PR_SUCCESS; + break; + default: + break; + } + return PR_FAILURE; +} +PRStatus +_PR_MD_WAKEUP_WAITER(PRThread *thread) +{ + if ( _PR_IS_NATIVE_THREAD(thread) ) + { + if (DosPostEventSem(thread->md.blocked_sema) != NO_ERROR) { + return PR_FAILURE; + } + else { + return PR_SUCCESS; + } + } +} + + +/* --- FILE IO ----------------------------------------------------------- */ +/* + * _PR_MD_OPEN() -- Open a file + * + * returns: a fileHandle + * + * The NSPR open flags (osflags) are translated into flags for OS/2 + * + * Mode seems to be passed in as a unix style file permissions argument + * as in 0666, in the case of opening the logFile. + * + */ +PRInt32 +_PR_MD_OPEN(const char *name, PRIntn osflags, int mode) +{ + HFILE file; + PRInt32 access = OPEN_SHARE_DENYNONE; + PRInt32 flags = 0L; + APIRET rc = 0; + PRUword actionTaken; + +#ifdef MOZ_OS2_HIGH_MEMORY + /* + * All the pointer arguments (&file, &actionTaken and name) have to be in + * low memory for DosOpen to use them. + * The following moves name to low memory. + */ + if ((ULONG)name >= 0x20000000) + { + size_t len = strlen(name) + 1; + char *copy = (char *)alloca(len); + memcpy(copy, name, len); + name = copy; + } +#endif + + if (osflags & PR_SYNC) { + access |= OPEN_FLAGS_WRITE_THROUGH; + } + + if (osflags & PR_RDONLY) { + access |= OPEN_ACCESS_READONLY; + } + else if (osflags & PR_WRONLY) { + access |= OPEN_ACCESS_WRITEONLY; + } + else if(osflags & PR_RDWR) { + access |= OPEN_ACCESS_READWRITE; + } + + if ( osflags & PR_CREATE_FILE && osflags & PR_EXCL ) + { + flags = OPEN_ACTION_CREATE_IF_NEW | OPEN_ACTION_FAIL_IF_EXISTS; + } + else if (osflags & PR_CREATE_FILE) + { + if (osflags & PR_TRUNCATE) { + flags = OPEN_ACTION_CREATE_IF_NEW | OPEN_ACTION_REPLACE_IF_EXISTS; + } + else { + flags = OPEN_ACTION_CREATE_IF_NEW | OPEN_ACTION_OPEN_IF_EXISTS; + } + } + else + { + if (osflags & PR_TRUNCATE) { + flags = OPEN_ACTION_FAIL_IF_NEW | OPEN_ACTION_REPLACE_IF_EXISTS; + } + else { + flags = OPEN_ACTION_FAIL_IF_NEW | OPEN_ACTION_OPEN_IF_EXISTS; + } + } + + do { + if (isWSEB) + { + rc = myDosOpenL((char*)name, + &file, /* file handle if successful */ + &actionTaken, /* reason for failure */ + 0, /* initial size of new file */ + FILE_NORMAL, /* file system attributes */ + flags, /* Open flags */ + access, /* Open mode and rights */ + 0); /* OS/2 Extended Attributes */ + } + else + { + rc = DosOpen((char*)name, + &file, /* file handle if successful */ + &actionTaken, /* reason for failure */ + 0, /* initial size of new file */ + FILE_NORMAL, /* file system attributes */ + flags, /* Open flags */ + access, /* Open mode and rights */ + 0); /* OS/2 Extended Attributes */ + }; + if (rc == ERROR_TOO_MANY_OPEN_FILES) { + ULONG CurMaxFH = 0; + LONG ReqCount = 20; + APIRET rc2; + rc2 = DosSetRelMaxFH(&ReqCount, &CurMaxFH); + if (rc2 != NO_ERROR) { + break; + } + } + } while (rc == ERROR_TOO_MANY_OPEN_FILES); + + if (rc != NO_ERROR) { + _PR_MD_MAP_OPEN_ERROR(rc); + return -1; + } + + return (PRInt32)file; +} + +PRInt32 +_PR_MD_READ(PRFileDesc *fd, void *buf, PRInt32 len) +{ + ULONG bytes; + int rv; + + rv = DosRead((HFILE)fd->secret->md.osfd, + (PVOID)buf, + len, + &bytes); + + if (rv != NO_ERROR) + { + /* ERROR_HANDLE_EOF can only be returned by async io */ + PR_ASSERT(rv != ERROR_HANDLE_EOF); + if (rv == ERROR_BROKEN_PIPE) { + return 0; + } + else { + _PR_MD_MAP_READ_ERROR(rv); + return -1; + } + } + return (PRInt32)bytes; +} + +PRInt32 +_PR_MD_WRITE(PRFileDesc *fd, const void *buf, PRInt32 len) +{ + PRInt32 bytes; + int rv; + + rv = DosWrite((HFILE)fd->secret->md.osfd, + (PVOID)buf, + len, + (PULONG)&bytes); + + if (rv != NO_ERROR) + { + _PR_MD_MAP_WRITE_ERROR(rv); + return -1; + } + + if (len != bytes) { + rv = ERROR_DISK_FULL; + _PR_MD_MAP_WRITE_ERROR(rv); + return -1; + } + + return bytes; +} /* --- end _PR_MD_WRITE() --- */ + +PRInt32 +_PR_MD_LSEEK(PRFileDesc *fd, PRInt32 offset, PRSeekWhence whence) +{ + PRInt32 rv; + PRUword newLocation; + + rv = DosSetFilePtr((HFILE)fd->secret->md.osfd, offset, whence, &newLocation); + + if (rv != NO_ERROR) { + _PR_MD_MAP_LSEEK_ERROR(rv); + return -1; + } else { + return newLocation; + } +} + +PRInt64 +_PR_MD_LSEEK64(PRFileDesc *fd, PRInt64 offset, PRSeekWhence whence) +{ +#ifdef NO_LONG_LONG + PRInt64 result; + PRInt32 rv, low = offset.lo, hi = offset.hi; + PRUword newLocation; + + rv = DosSetFilePtr((HFILE)fd->secret->md.osfd, low, whence, &newLocation); + rv = DosSetFilePtr((HFILE)fd->secret->md.osfd, hi, FILE_CURRENT, &newLocation); + + if (rv != NO_ERROR) { + _PR_MD_MAP_LSEEK_ERROR(rv); + hi = newLocation = -1; + } + + result.lo = newLocation; + result.hi = hi; + return result; + +#else + PRInt32 where, rc, lo = (PRInt32)offset, hi = (PRInt32)(offset >> 32); + PRUint64 rv; + PRUint32 newLocation, uhi; + PRUint64 newLocationL; + + switch (whence) + { + case PR_SEEK_SET: + where = FILE_BEGIN; + break; + case PR_SEEK_CUR: + where = FILE_CURRENT; + break; + case PR_SEEK_END: + where = FILE_END; + break; + default: + PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0); + return -1; + } + if (isWSEB) + { + rc = myDosSetFilePtrL((HFILE)fd->secret->md.osfd, offset, where, (PLONGLONG)&newLocationL); + } + else + { + rc = DosSetFilePtr((HFILE)fd->secret->md.osfd, lo, where, (PULONG)&newLocation); + } + + if (rc != NO_ERROR) { + _PR_MD_MAP_LSEEK_ERROR(rc); + return -1; + } + + if (isWSEB) + { + return newLocationL; + } + + uhi = (PRUint32)hi; + PR_ASSERT((PRInt32)uhi >= 0); + rv = uhi; + PR_ASSERT((PRInt64)rv >= 0); + rv = (rv << 32); + PR_ASSERT((PRInt64)rv >= 0); + rv += newLocation; + PR_ASSERT((PRInt64)rv >= 0); + return (PRInt64)rv; +#endif +} + +PRInt32 +_PR_MD_FSYNC(PRFileDesc *fd) +{ + PRInt32 rc = DosResetBuffer((HFILE)fd->secret->md.osfd); + + if (rc != NO_ERROR) { + if (rc != ERROR_ACCESS_DENIED) { + _PR_MD_MAP_FSYNC_ERROR(rc); + return -1; + } + } + return 0; +} + +PRInt32 +_MD_CloseFile(PRInt32 osfd) +{ + PRInt32 rv; + + rv = DosClose((HFILE)osfd); + if (rv != NO_ERROR) { + _PR_MD_MAP_CLOSE_ERROR(rv); + } + return rv; +} + + +/* --- DIR IO ------------------------------------------------------------ */ +#define GetFileFromDIR(d) (isWSEB?(d)->d_entry.large.achName:(d)->d_entry.small.achName) +#define GetFileAttr(d) (isWSEB?(d)->d_entry.large.attrFile:(d)->d_entry.small.attrFile) + +void FlipSlashes(char *cp, int len) +{ + while (--len >= 0) { + if (cp[0] == '/') { + cp[0] = PR_DIRECTORY_SEPARATOR; + } + cp++; + } +} + +/* +** +** Local implementations of standard Unix RTL functions which are not provided +** by the VAC RTL. +** +*/ + +PRInt32 +_PR_MD_CLOSE_DIR(_MDDir *d) +{ + PRInt32 rc; + + if ( d ) { + rc = DosFindClose(d->d_hdl); + if(rc == NO_ERROR) { + d->magic = (PRUint32)-1; + return PR_SUCCESS; + } else { + _PR_MD_MAP_CLOSEDIR_ERROR(rc); + return PR_FAILURE; + } + } + PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0); + return PR_FAILURE; +} + + +PRStatus +_PR_MD_OPEN_DIR(_MDDir *d, const char *name) +{ + char filename[ CCHMAXPATH ]; + PRUword numEntries, rc; + + numEntries = 1; + + PR_snprintf(filename, CCHMAXPATH, "%s%s%s", + name, PR_DIRECTORY_SEPARATOR_STR, "*.*"); + FlipSlashes( filename, strlen(filename) ); + + d->d_hdl = HDIR_CREATE; + + if (isWSEB) + { + rc = DosFindFirst( filename, + &d->d_hdl, + FILE_DIRECTORY | FILE_HIDDEN, + &(d->d_entry.large), + sizeof(d->d_entry.large), + &numEntries, + FIL_STANDARDL); + } + else + { + rc = DosFindFirst( filename, + &d->d_hdl, + FILE_DIRECTORY | FILE_HIDDEN, + &(d->d_entry.small), + sizeof(d->d_entry.small), + &numEntries, + FIL_STANDARD); + } + if ( rc != NO_ERROR ) { + _PR_MD_MAP_OPENDIR_ERROR(rc); + return PR_FAILURE; + } + d->firstEntry = PR_TRUE; + d->magic = _MD_MAGIC_DIR; + return PR_SUCCESS; +} + +char * +_PR_MD_READ_DIR(_MDDir *d, PRIntn flags) +{ + PRUword numFiles = 1; + BOOL rv; + char *fileName; + USHORT fileAttr; + + if ( d ) { + while (1) { + if (d->firstEntry) { + d->firstEntry = PR_FALSE; + rv = NO_ERROR; + } else { + rv = DosFindNext(d->d_hdl, + &(d->d_entry), + sizeof(d->d_entry), + &numFiles); + } + if (rv != NO_ERROR) { + break; + } + fileName = GetFileFromDIR(d); + fileAttr = GetFileAttr(d); + if ( (flags & PR_SKIP_DOT) && + (fileName[0] == '.') && (fileName[1] == '\0')) { + continue; + } + if ( (flags & PR_SKIP_DOT_DOT) && + (fileName[0] == '.') && (fileName[1] == '.') && + (fileName[2] == '\0')) { + continue; + } + /* + * XXX + * Is this the correct definition of a hidden file on OS/2? + */ + if ((flags & PR_SKIP_NONE) && (fileAttr & FILE_HIDDEN)) { + return fileName; + } + else if ((flags & PR_SKIP_HIDDEN) && (fileAttr & FILE_HIDDEN)) { + continue; + } + return fileName; + } + PR_ASSERT(NO_ERROR != rv); + _PR_MD_MAP_READDIR_ERROR(rv); + return NULL; + } + PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0); + return NULL; +} + +PRInt32 +_PR_MD_DELETE(const char *name) +{ + PRInt32 rc = DosDelete((char*)name); + if(rc == NO_ERROR) { + return 0; + } else { + _PR_MD_MAP_DELETE_ERROR(rc); + return -1; + } +} + +PRInt32 +_PR_MD_STAT(const char *fn, struct stat *info) +{ + PRInt32 rv; + char filename[CCHMAXPATH]; + + PR_snprintf(filename, CCHMAXPATH, "%s", fn); + FlipSlashes(filename, strlen(filename)); + + rv = _stat((char*)filename, info); + if (-1 == rv) { + /* + * Check for MSVC runtime library _stat() bug. + * (It's really a bug in FindFirstFile().) + * If a pathname ends in a backslash or slash, + * e.g., c:\temp\ or c:/temp/, _stat() will fail. + * Note: a pathname ending in a slash (e.g., c:/temp/) + * can be handled by _stat() on NT but not on Win95. + * + * We remove the backslash or slash at the end and + * try again. + * + * Not sure if this happens on OS/2 or not, + * but it doesn't hurt to be careful. + */ + + int len = strlen(fn); + if (len > 0 && len <= _MAX_PATH + && (fn[len - 1] == '\\' || fn[len - 1] == '/')) { + char newfn[_MAX_PATH + 1]; + + strcpy(newfn, fn); + newfn[len - 1] = '\0'; + rv = _stat(newfn, info); + } + } + + if (-1 == rv) { + _PR_MD_MAP_STAT_ERROR(errno); + } + return rv; +} + +PRInt32 +_PR_MD_GETFILEINFO(const char *fn, PRFileInfo *info) +{ + struct stat sb; + PRInt32 rv; + PRInt64 s, s2us; + + if ( (rv = _PR_MD_STAT(fn, &sb)) == 0 ) { + if (info) { + if (S_IFREG & sb.st_mode) { + info->type = PR_FILE_FILE ; + } + else if (S_IFDIR & sb.st_mode) { + info->type = PR_FILE_DIRECTORY; + } + else { + info->type = PR_FILE_OTHER; + } + info->size = sb.st_size; + LL_I2L(s2us, PR_USEC_PER_SEC); + LL_I2L(s, sb.st_mtime); + LL_MUL(s, s, s2us); + info->modifyTime = s; + LL_I2L(s, sb.st_ctime); + LL_MUL(s, s, s2us); + info->creationTime = s; + } + } + return rv; +} + +PRInt32 +_PR_MD_GETFILEINFO64(const char *fn, PRFileInfo64 *info) +{ + PRFileInfo info32; + PRInt32 rv = _PR_MD_GETFILEINFO(fn, &info32); + if (rv != 0) + { + return rv; + } + info->type = info32.type; + LL_UI2L(info->size,info32.size); + info->modifyTime = info32.modifyTime; + info->creationTime = info32.creationTime; + + if (isWSEB) + { + APIRET rc ; + FILESTATUS3L fstatus; + + rc = DosQueryPathInfo(fn, FIL_STANDARDL, &fstatus, sizeof(fstatus)); + + if (NO_ERROR != rc) + { + _PR_MD_MAP_OPEN_ERROR(rc); + return -1; + } + + if (! (fstatus.attrFile & FILE_DIRECTORY)) + { + info->size = fstatus.cbFile; + } + } + + return rv; +} + +PRInt32 +_PR_MD_GETOPENFILEINFO(const PRFileDesc *fd, PRFileInfo *info) +{ + /* For once, the VAC compiler/library did a nice thing. + * The file handle used by the C runtime is the same one + * returned by the OS when you call DosOpen(). This means + * that you can take an OS HFILE and use it with C file + * functions. The only caveat is that you have to call + * _setmode() first to initialize some junk. This is + * immensely useful because I did not have a clue how to + * implement this function otherwise. The windows folks + * took the source from the Microsoft C library source, but + * IBM wasn't kind enough to ship the source with VAC. + * On second thought, the needed function could probably + * be gotten from the OS/2 GNU library source, but the + * point is now moot. + */ + struct stat hinfo; + PRInt64 s, s2us; + + _setmode(fd->secret->md.osfd, O_BINARY); + if(fstat((int)fd->secret->md.osfd, &hinfo) != NO_ERROR) { + _PR_MD_MAP_FSTAT_ERROR(errno); + return -1; + } + + if (hinfo.st_mode & S_IFDIR) { + info->type = PR_FILE_DIRECTORY; + } + else { + info->type = PR_FILE_FILE; + } + + info->size = hinfo.st_size; + LL_I2L(s2us, PR_USEC_PER_SEC); + LL_I2L(s, hinfo.st_mtime); + LL_MUL(s, s, s2us); + info->modifyTime = s; + LL_I2L(s, hinfo.st_ctime); + LL_MUL(s, s, s2us); + info->creationTime = s; + + return 0; +} + +PRInt32 +_PR_MD_GETOPENFILEINFO64(const PRFileDesc *fd, PRFileInfo64 *info) +{ + PRFileInfo info32; + PRInt32 rv = _PR_MD_GETOPENFILEINFO(fd, &info32); + if (0 == rv) + { + info->type = info32.type; + LL_UI2L(info->size,info32.size); + + info->modifyTime = info32.modifyTime; + info->creationTime = info32.creationTime; + } + + if (isWSEB) + { + APIRET rc ; + FILESTATUS3L fstatus; + + rc = DosQueryFileInfo(fd->secret->md.osfd, FIL_STANDARDL, &fstatus, sizeof(fstatus)); + + if (NO_ERROR != rc) + { + _PR_MD_MAP_OPEN_ERROR(rc); + return -1; + } + + if (! (fstatus.attrFile & FILE_DIRECTORY)) + { + info->size = fstatus.cbFile; + } + } + + return rv; +} + + +PRInt32 +_PR_MD_RENAME(const char *from, const char *to) +{ + PRInt32 rc; + /* Does this work with dot-relative pathnames? */ + if ( (rc = DosMove((char *)from, (char *)to)) == NO_ERROR) { + return 0; + } else { + _PR_MD_MAP_RENAME_ERROR(rc); + return -1; + } +} + +PRInt32 +_PR_MD_ACCESS(const char *name, PRAccessHow how) +{ + PRInt32 rv; + switch (how) { + case PR_ACCESS_WRITE_OK: + rv = access(name, 02); + break; + case PR_ACCESS_READ_OK: + rv = access(name, 04); + break; + case PR_ACCESS_EXISTS: + return access(name, 00); + break; + default: + PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0); + return -1; + } + if (rv < 0) { + _PR_MD_MAP_ACCESS_ERROR(errno); + } + return rv; +} + +PRInt32 +_PR_MD_MKDIR(const char *name, PRIntn mode) +{ + PRInt32 rc; + /* XXXMB - how to translate the "mode"??? */ + if ((rc = DosCreateDir((char *)name, NULL))== NO_ERROR) { + return 0; + } else { + _PR_MD_MAP_MKDIR_ERROR(rc); + return -1; + } +} + +PRInt32 +_PR_MD_RMDIR(const char *name) +{ + PRInt32 rc; + if ( (rc = DosDeleteDir((char *)name)) == NO_ERROR) { + return 0; + } else { + _PR_MD_MAP_RMDIR_ERROR(rc); + return -1; + } +} + +PRStatus +_PR_MD_LOCKFILE(PRInt32 f) +{ + PRInt32 rv; + FILELOCK lock, unlock; + FILELOCKL lockL, unlockL; + + lock.lOffset = 0; + lockL.lOffset = 0; + lock.lRange = 0xffffffff; + lockL.lRange = 0xffffffffffffffff; + unlock.lOffset = 0; + unlock.lRange = 0; + unlockL.lOffset = 0; + unlockL.lRange = 0; + + /* + * loop trying to DosSetFileLocks(), + * pause for a few miliseconds when can't get the lock + * and try again + */ + for( rv = FALSE; rv == FALSE; /* do nothing */ ) + { + if (isWSEB) + { + rv = myDosSetFileLocksL( (HFILE) f, + &unlockL, &lockL, + 0, 0); + } + else + { + rv = DosSetFileLocks( (HFILE) f, + &unlock, &lock, + 0, 0); + } + if ( rv != NO_ERROR ) + { + DosSleep( 50 ); /* Sleep() a few milisecs and try again. */ + } + } /* end for() */ + return PR_SUCCESS; +} /* end _PR_MD_LOCKFILE() */ + +PRStatus +_PR_MD_TLOCKFILE(PRInt32 f) +{ + return _PR_MD_LOCKFILE(f); +} /* end _PR_MD_TLOCKFILE() */ + + +PRStatus +_PR_MD_UNLOCKFILE(PRInt32 f) +{ + PRInt32 rv; + FILELOCK lock, unlock; + FILELOCKL lockL, unlockL; + + lock.lOffset = 0; + lockL.lOffset = 0; + lock.lRange = 0; + lockL.lRange = 0; + unlock.lOffset = 0; + unlockL.lOffset = 0; + unlock.lRange = 0xffffffff; + unlockL.lRange = 0xffffffffffffffff; + + if (isWSEB) + { + rv = myDosSetFileLocksL( (HFILE) f, + &unlockL, &lockL, + 0, 0); + } + else + { + rv = DosSetFileLocks( (HFILE) f, + &unlock, &lock, + 0, 0); + } + + if ( rv != NO_ERROR ) + { + return PR_SUCCESS; + } + else + { + return PR_FAILURE; + } +} /* end _PR_MD_UNLOCKFILE() */ + +PRStatus +_PR_MD_SET_FD_INHERITABLE(PRFileDesc *fd, PRBool inheritable) +{ + APIRET rc = 0; + ULONG flags; + switch (fd->methods->file_type) + { + case PR_DESC_PIPE: + case PR_DESC_FILE: + rc = DosQueryFHState((HFILE)fd->secret->md.osfd, &flags); + if (rc != NO_ERROR) { + PR_SetError(PR_UNKNOWN_ERROR, _MD_ERRNO()); + return PR_FAILURE; + } + + if (inheritable) { + flags &= ~OPEN_FLAGS_NOINHERIT; + } + else { + flags |= OPEN_FLAGS_NOINHERIT; + } + + /* Mask off flags DosSetFHState don't want. */ + flags &= (OPEN_FLAGS_WRITE_THROUGH | OPEN_FLAGS_FAIL_ON_ERROR | OPEN_FLAGS_NO_CACHE | OPEN_FLAGS_NOINHERIT); + rc = DosSetFHState((HFILE)fd->secret->md.osfd, flags); + if (rc != NO_ERROR) { + PR_SetError(PR_UNKNOWN_ERROR, _MD_ERRNO()); + return PR_FAILURE; + } + break; + + case PR_DESC_LAYERED: + /* what to do here? */ + PR_SetError(PR_UNKNOWN_ERROR, 87 /*ERROR_INVALID_PARAMETER*/); + return PR_FAILURE; + + case PR_DESC_SOCKET_TCP: + case PR_DESC_SOCKET_UDP: + /* These are global on OS/2. */ + break; + } + + return PR_SUCCESS; +} + +void +_PR_MD_INIT_FD_INHERITABLE(PRFileDesc *fd, PRBool imported) +{ + /* XXX this function needs to be implemented */ + fd->secret->inheritable = _PR_TRI_UNKNOWN; +} + +void +_PR_MD_QUERY_FD_INHERITABLE(PRFileDesc *fd) +{ + /* XXX this function needs to be reviewed */ + ULONG flags; + + PR_ASSERT(_PR_TRI_UNKNOWN == fd->secret->inheritable); + if (DosQueryFHState((HFILE)fd->secret->md.osfd, &flags) == 0) { + if (flags & OPEN_FLAGS_NOINHERIT) { + fd->secret->inheritable = _PR_TRI_FALSE; + } else { + fd->secret->inheritable = _PR_TRI_TRUE; + } + } +} diff --git a/nsprpub/pr/src/md/os2/os2misc.c b/nsprpub/pr/src/md/os2/os2misc.c new file mode 100644 index 0000000000..240f0905c9 --- /dev/null +++ b/nsprpub/pr/src/md/os2/os2misc.c @@ -0,0 +1,620 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +/* + * os2misc.c + * + */ + +#ifdef MOZ_OS2_HIGH_MEMORY +/* os2safe.h has to be included before os2.h, needed for high mem */ +#include <os2safe.h> +#endif + +#include <string.h> +#include "primpl.h" + +extern int _CRT_init(void); +extern void _CRT_term(void); +extern void __ctordtorInit(int flag); +extern void __ctordtorTerm(int flag); + +char * +_PR_MD_GET_ENV(const char *name) +{ + return getenv(name); +} + +PRIntn +_PR_MD_PUT_ENV(const char *name) +{ + return putenv(name); +} + + +/* + ************************************************************************** + ************************************************************************** + ** + ** Date and time routines + ** + ************************************************************************** + ************************************************************************** + */ + +#include <sys/timeb.h> +/* + *----------------------------------------------------------------------- + * + * PR_Now -- + * + * Returns the current time in microseconds since the epoch. + * The epoch is midnight January 1, 1970 GMT. + * The implementation is machine dependent. This is the + * implementation for OS/2. + * Cf. time_t time(time_t *tp) + * + *----------------------------------------------------------------------- + */ + +PR_IMPLEMENT(PRTime) +PR_Now(void) +{ + PRInt64 s, ms, ms2us, s2us; + struct timeb b; + + ftime(&b); + LL_I2L(ms2us, PR_USEC_PER_MSEC); + LL_I2L(s2us, PR_USEC_PER_SEC); + LL_I2L(s, b.time); + LL_I2L(ms, b.millitm); + LL_MUL(ms, ms, ms2us); + LL_MUL(s, s, s2us); + LL_ADD(s, s, ms); + return s; +} + + +/* + *********************************************************************** + *********************************************************************** + * + * Process creation routines + * + *********************************************************************** + *********************************************************************** + */ + +/* + * Assemble the command line by concatenating the argv array. + * Special characters intentionally do not get escaped, and it is + * expected that the caller wraps arguments in quotes if needed + * (e.g. for filename with spaces). + * + * On success, this function returns 0 and the resulting command + * line is returned in *cmdLine. On failure, it returns -1. + */ +static int assembleCmdLine(char *const *argv, char **cmdLine) +{ + char *const *arg; + int cmdLineSize; + + /* + * Find out how large the command line buffer should be. + */ + cmdLineSize = 1; /* final null */ + for (arg = argv+1; *arg; arg++) { + cmdLineSize += strlen(*arg) + 1; /* space in between */ + } + *cmdLine = PR_MALLOC(cmdLineSize); + if (*cmdLine == NULL) { + return -1; + } + + (*cmdLine)[0] = '\0'; + + for (arg = argv+1; *arg; arg++) { + if (arg > argv +1) { + strcat(*cmdLine, " "); + } + strcat(*cmdLine, *arg); + } + return 0; +} + +/* + * Assemble the environment block by concatenating the envp array + * (preserving the terminating null byte in each array element) + * and adding a null byte at the end. + * + * Returns 0 on success. The resulting environment block is returned + * in *envBlock. Note that if envp is NULL, a NULL pointer is returned + * in *envBlock. Returns -1 on failure. + */ +static int assembleEnvBlock(char **envp, char **envBlock) +{ + char *p; + char *q; + char **env; + char *curEnv; + char *cwdStart, *cwdEnd; + int envBlockSize; + + PPIB ppib = NULL; + PTIB ptib = NULL; + + if (envp == NULL) { + *envBlock = NULL; + return 0; + } + + if(DosGetInfoBlocks(&ptib, &ppib) != NO_ERROR) { + return -1; + } + + curEnv = ppib->pib_pchenv; + + cwdStart = curEnv; + while (*cwdStart) { + if (cwdStart[0] == '=' && cwdStart[1] != '\0' + && cwdStart[2] == ':' && cwdStart[3] == '=') { + break; + } + cwdStart += strlen(cwdStart) + 1; + } + cwdEnd = cwdStart; + if (*cwdEnd) { + cwdEnd += strlen(cwdEnd) + 1; + while (*cwdEnd) { + if (cwdEnd[0] != '=' || cwdEnd[1] == '\0' + || cwdEnd[2] != ':' || cwdEnd[3] != '=') { + break; + } + cwdEnd += strlen(cwdEnd) + 1; + } + } + envBlockSize = cwdEnd - cwdStart; + + for (env = envp; *env; env++) { + envBlockSize += strlen(*env) + 1; + } + envBlockSize++; + + p = *envBlock = PR_MALLOC(envBlockSize); + if (p == NULL) { + return -1; + } + + q = cwdStart; + while (q < cwdEnd) { + *p++ = *q++; + } + + for (env = envp; *env; env++) { + q = *env; + while (*q) { + *p++ = *q++; + } + *p++ = '\0'; + } + *p = '\0'; + return 0; +} + +/* + * For qsort. We sort (case-insensitive) the environment strings + * before generating the environment block. + */ +static int compare(const void *arg1, const void *arg2) +{ + return stricmp(* (char**)arg1, * (char**)arg2); +} + +PRProcess * _PR_CreateOS2Process( + const char *path, + char *const *argv, + char *const *envp, + const PRProcessAttr *attr) +{ + PRProcess *proc = NULL; + char *cmdLine = NULL; + char **newEnvp = NULL; + char *envBlock = NULL; + + STARTDATA startData = {0}; + APIRET rc; + ULONG ulAppType = 0; + PID pid = 0; + char *pszComSpec; + char pszEXEName[CCHMAXPATH] = ""; + char pszFormatString[CCHMAXPATH]; + char pszObjectBuffer[CCHMAXPATH]; + char *pszFormatResult = NULL; + + /* + * Variables for DosExecPgm + */ + char szFailed[CCHMAXPATH]; + char *pszCmdLine = NULL; + RESULTCODES procInfo; + HFILE hStdIn = 0, + hStdOut = 0, + hStdErr = 0; + HFILE hStdInSave = -1, + hStdOutSave = -1, + hStdErrSave = -1; + + proc = PR_NEW(PRProcess); + if (!proc) { + PR_SetError(PR_OUT_OF_MEMORY_ERROR, 0); + goto errorExit; + } + + if (assembleCmdLine(argv, &cmdLine) == -1) { + PR_SetError(PR_OUT_OF_MEMORY_ERROR, 0); + goto errorExit; + } + +#ifdef MOZ_OS2_HIGH_MEMORY + /* + * DosQueryAppType() fails if path (the char* in the first argument) is in + * high memory. If that is the case, the following moves it to low memory. + */ + if ((ULONG)path >= 0x20000000) { + size_t len = strlen(path) + 1; + char *copy = (char *)alloca(len); + memcpy(copy, path, len); + path = copy; + } +#endif + + if (envp == NULL) { + newEnvp = NULL; + } else { + int i; + int numEnv = 0; + while (envp[numEnv]) { + numEnv++; + } + newEnvp = (char **) PR_MALLOC((numEnv+1) * sizeof(char *)); + for (i = 0; i <= numEnv; i++) { + newEnvp[i] = envp[i]; + } + qsort((void *) newEnvp, (size_t) numEnv, sizeof(char *), compare); + } + if (assembleEnvBlock(newEnvp, &envBlock) == -1) { + PR_SetError(PR_OUT_OF_MEMORY_ERROR, 0); + goto errorExit; + } + + rc = DosQueryAppType(path, &ulAppType); + if (rc != NO_ERROR) { + char *pszDot = strrchr(path, '.'); + if (pszDot) { + /* If it is a CMD file, launch the users command processor */ + if (!stricmp(pszDot, ".cmd")) { + rc = DosScanEnv("COMSPEC", (PSZ *)&pszComSpec); + if (!rc) { + strcpy(pszFormatString, "/C %s %s"); + strcpy(pszEXEName, pszComSpec); + ulAppType = FAPPTYP_WINDOWCOMPAT; + } + } + } + } + if (ulAppType == 0) { + PR_SetError(PR_UNKNOWN_ERROR, 0); + goto errorExit; + } + + if ((ulAppType & FAPPTYP_WINDOWAPI) == FAPPTYP_WINDOWAPI) { + startData.SessionType = SSF_TYPE_PM; + } + else if (ulAppType & FAPPTYP_WINDOWCOMPAT) { + startData.SessionType = SSF_TYPE_WINDOWABLEVIO; + } + else { + startData.SessionType = SSF_TYPE_DEFAULT; + } + + if (ulAppType & (FAPPTYP_WINDOWSPROT31 | FAPPTYP_WINDOWSPROT | FAPPTYP_WINDOWSREAL)) + { + strcpy(pszEXEName, "WINOS2.COM"); + startData.SessionType = PROG_31_STDSEAMLESSVDM; + strcpy(pszFormatString, "/3 %s %s"); + } + + startData.InheritOpt = SSF_INHERTOPT_SHELL; + + if (pszEXEName[0]) { + pszFormatResult = PR_MALLOC(strlen(pszFormatString)+strlen(path)+strlen(cmdLine)); + sprintf(pszFormatResult, pszFormatString, path, cmdLine); + startData.PgmInputs = pszFormatResult; + } else { + strcpy(pszEXEName, path); + startData.PgmInputs = cmdLine; + } + startData.PgmName = pszEXEName; + + startData.Length = sizeof(startData); + startData.Related = SSF_RELATED_INDEPENDENT; + startData.ObjectBuffer = pszObjectBuffer; + startData.ObjectBuffLen = CCHMAXPATH; + startData.Environment = envBlock; + + if (attr) { + /* On OS/2, there is really no way to pass file handles for stdin, + * stdout, and stderr to a new process. Instead, we can make it + * a child process and make the given file handles a copy of our + * stdin, stdout, and stderr. The child process then inherits + * ours, and we set ours back. Twisted and gross I know. If you + * know a better way, please use it. + */ + if (attr->stdinFd) { + hStdIn = 0; + DosDupHandle(hStdIn, &hStdInSave); + DosDupHandle((HFILE) attr->stdinFd->secret->md.osfd, &hStdIn); + } + + if (attr->stdoutFd) { + hStdOut = 1; + DosDupHandle(hStdOut, &hStdOutSave); + DosDupHandle((HFILE) attr->stdoutFd->secret->md.osfd, &hStdOut); + } + + if (attr->stderrFd) { + hStdErr = 2; + DosDupHandle(hStdErr, &hStdErrSave); + DosDupHandle((HFILE) attr->stderrFd->secret->md.osfd, &hStdErr); + } + /* + * Build up the Command Line for DosExecPgm + */ + pszCmdLine = PR_MALLOC(strlen(pszEXEName) + + strlen(startData.PgmInputs) + 3); + sprintf(pszCmdLine, "%s%c%s%c", pszEXEName, '\0', + startData.PgmInputs, '\0'); + rc = DosExecPgm(szFailed, + CCHMAXPATH, + EXEC_ASYNCRESULT, + pszCmdLine, + envBlock, + &procInfo, + pszEXEName); + PR_DELETE(pszCmdLine); + + /* Restore our old values. Hope this works */ + if (hStdInSave != -1) { + DosDupHandle(hStdInSave, &hStdIn); + DosClose(hStdInSave); + } + + if (hStdOutSave != -1) { + DosDupHandle(hStdOutSave, &hStdOut); + DosClose(hStdOutSave); + } + + if (hStdErrSave != -1) { + DosDupHandle(hStdErrSave, &hStdErr); + DosClose(hStdErrSave); + } + + if (rc != NO_ERROR) { + /* XXX what error code? */ + PR_SetError(PR_UNKNOWN_ERROR, rc); + goto errorExit; + } + + proc->md.pid = procInfo.codeTerminate; + } else { + /* + * If no STDIN/STDOUT redirection is not needed, use DosStartSession + * to create a new, independent session + */ + rc = DosStartSession(&startData, &ulAppType, &pid); + + if ((rc != NO_ERROR) && (rc != ERROR_SMG_START_IN_BACKGROUND)) { + PR_SetError(PR_UNKNOWN_ERROR, rc); + goto errorExit; + } + + proc->md.pid = pid; + } + + if (pszFormatResult) { + PR_DELETE(pszFormatResult); + } + + PR_DELETE(cmdLine); + if (newEnvp) { + PR_DELETE(newEnvp); + } + if (envBlock) { + PR_DELETE(envBlock); + } + return proc; + +errorExit: + if (cmdLine) { + PR_DELETE(cmdLine); + } + if (newEnvp) { + PR_DELETE(newEnvp); + } + if (envBlock) { + PR_DELETE(envBlock); + } + if (proc) { + PR_DELETE(proc); + } + return NULL; +} /* _PR_CreateOS2Process */ + +PRStatus _PR_DetachOS2Process(PRProcess *process) +{ + /* On OS/2, a process is either created as a child or not. + * You can't 'detach' it later on. + */ + PR_DELETE(process); + return PR_SUCCESS; +} + +/* + * XXX: This will currently only work on a child process. + */ +PRStatus _PR_WaitOS2Process(PRProcess *process, + PRInt32 *exitCode) +{ + ULONG ulRetVal; + RESULTCODES results; + PID pidEnded = 0; + + ulRetVal = DosWaitChild(DCWA_PROCESS, DCWW_WAIT, + &results, + &pidEnded, process->md.pid); + + if (ulRetVal != NO_ERROR) { + printf("\nDosWaitChild rc = %lu\n", ulRetVal); + PR_SetError(PR_UNKNOWN_ERROR, ulRetVal); + return PR_FAILURE; + } + PR_DELETE(process); + return PR_SUCCESS; +} + +PRStatus _PR_KillOS2Process(PRProcess *process) +{ + ULONG ulRetVal; + if ((ulRetVal = DosKillProcess(DKP_PROCESS, process->md.pid)) == NO_ERROR) { + return PR_SUCCESS; + } + PR_SetError(PR_UNKNOWN_ERROR, ulRetVal); + return PR_FAILURE; +} + +PRStatus _MD_OS2GetHostName(char *name, PRUint32 namelen) +{ + PRIntn rv; + + rv = gethostname(name, (PRInt32) namelen); + if (0 == rv) { + return PR_SUCCESS; + } + _PR_MD_MAP_GETHOSTNAME_ERROR(sock_errno()); + return PR_FAILURE; +} + +void +_PR_MD_WAKEUP_CPUS( void ) +{ + return; +} + +/* + ********************************************************************** + * + * Memory-mapped files + * + * A credible emulation of memory-mapped i/o on OS/2 would require + * an exception-handler on each thread that might access the mapped + * memory. In the Mozilla environment, that would be impractical. + * Instead, the following simulates those modes which don't modify + * the mapped file. It reads the entire mapped file segment at once + * when MemMap is called, and frees it on MemUnmap. CreateFileMap + * only does sanity-checks, while CloseFileMap does almost nothing. + * + ********************************************************************** + */ + +PRStatus _MD_CreateFileMap(PRFileMap *fmap, PRInt64 size) +{ + PRFileInfo64 info; + + /* assert on PR_PROT_READWRITE which modifies the underlying file */ + PR_ASSERT(fmap->prot == PR_PROT_READONLY || + fmap->prot == PR_PROT_WRITECOPY); + if (fmap->prot != PR_PROT_READONLY && + fmap->prot != PR_PROT_WRITECOPY) { + PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0); + return PR_FAILURE; + } + if (PR_GetOpenFileInfo64(fmap->fd, &info) == PR_FAILURE) { + return PR_FAILURE; + } + /* reject zero-byte mappings & zero-byte files */ + if (!size || !info.size) { + PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0); + return PR_FAILURE; + } + /* file size rounded up to the next page boundary */ + fmap->md.maxExtent = (info.size + 0xfff) & ~(0xfff); + + return PR_SUCCESS; +} + +PRInt32 _MD_GetMemMapAlignment(void) +{ + /* OS/2 pages are 4k */ + return 0x1000; +} + +void * _MD_MemMap(PRFileMap *fmap, PROffset64 offset, PRUint32 len) +{ + PRUint32 rv; + void *addr; + + /* prevent mappings beyond EOF + remainder of page */ + if (offset + len > fmap->md.maxExtent) { + PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0); + return NULL; + } + if (PR_Seek64(fmap->fd, offset, PR_SEEK_SET) == -1) { + return NULL; + } + /* try for high memory, fall back to low memory if hi-mem fails */ + rv = DosAllocMem(&addr, len, OBJ_ANY | PAG_COMMIT | PAG_READ | PAG_WRITE); + if (rv) { + rv = DosAllocMem(&addr, len, PAG_COMMIT | PAG_READ | PAG_WRITE); + if (rv) { + PR_SetError(PR_OUT_OF_MEMORY_ERROR, rv); + return NULL; + } + } + if (PR_Read(fmap->fd, addr, len) == -1) { + DosFreeMem(addr); + return NULL; + } + /* don't permit writes if readonly */ + if (fmap->prot == PR_PROT_READONLY) { + rv = DosSetMem(addr, len, PAG_READ); + if (rv) { + DosFreeMem(addr); + PR_SetError(PR_UNKNOWN_ERROR, rv); + return NULL; + } + } + return addr; +} + +PRStatus _MD_MemUnmap(void *addr, PRUint32 len) +{ + PRUint32 rv; + + /* we just have to trust that addr & len are those used by MemMap */ + rv = DosFreeMem(addr); + if (rv) { + PR_SetError(PR_INVALID_ARGUMENT_ERROR, rv); + return PR_FAILURE; + } + return PR_SUCCESS; +} + +PRStatus _MD_CloseFileMap(PRFileMap *fmap) +{ + /* nothing to do except free the PRFileMap struct */ + PR_Free(fmap); + return PR_SUCCESS; +} + diff --git a/nsprpub/pr/src/md/os2/os2poll.c b/nsprpub/pr/src/md/os2/os2poll.c new file mode 100644 index 0000000000..47d9710454 --- /dev/null +++ b/nsprpub/pr/src/md/os2/os2poll.c @@ -0,0 +1,361 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +/* + * This file implements _PR_MD_PR_POLL for OS/2. + */ + +#include <sys/time.h> /* For timeval. */ + +#include "primpl.h" + +#ifndef BSD_SELECT +/* Utility functions called when using OS/2 select */ + +PRBool IsSocketSet( PRInt32 osfd, int* socks, int start, int count ) +{ + int i; + PRBool isSet = PR_FALSE; + + for( i = start; i < start+count; i++ ) + { + if( socks[i] == osfd ) { + isSet = PR_TRUE; + } + } + + return isSet; +} +#endif + +PRInt32 _PR_MD_PR_POLL(PRPollDesc *pds, PRIntn npds, PRIntervalTime timeout) +{ +#ifdef BSD_SELECT + fd_set rd, wt, ex; +#else + int rd, wt, ex; + int* socks; + unsigned long msecs; + int i, j; +#endif + PRFileDesc *bottom; + PRPollDesc *pd, *epd; + PRInt32 maxfd = -1, ready, err; + PRIntervalTime remaining, elapsed, start; + +#ifdef BSD_SELECT + struct timeval tv, *tvp = NULL; + + FD_ZERO(&rd); + FD_ZERO(&wt); + FD_ZERO(&ex); +#else + rd = 0; + wt = 0; + ex = 0; + socks = (int) PR_MALLOC( npds * 3 * sizeof(int) ); + + if (!socks) + { + PR_SetError(PR_OUT_OF_MEMORY_ERROR, 0); + return -1; + } +#endif + + ready = 0; + for (pd = pds, epd = pd + npds; pd < epd; pd++) + { + PRInt16 in_flags_read = 0, in_flags_write = 0; + PRInt16 out_flags_read = 0, out_flags_write = 0; + + if ((NULL != pd->fd) && (0 != pd->in_flags)) + { + if (pd->in_flags & PR_POLL_READ) + { + in_flags_read = (pd->fd->methods->poll)( + pd->fd, pd->in_flags & ~PR_POLL_WRITE, &out_flags_read); + } + if (pd->in_flags & PR_POLL_WRITE) + { + in_flags_write = (pd->fd->methods->poll)( + pd->fd, pd->in_flags & ~PR_POLL_READ, &out_flags_write); + } + if ((0 != (in_flags_read & out_flags_read)) || + (0 != (in_flags_write & out_flags_write))) + { + /* this one's ready right now */ + if (0 == ready) + { + /* + * We will have to return without calling the + * system poll/select function. So zero the + * out_flags fields of all the poll descriptors + * before this one. + */ + PRPollDesc *prev; + for (prev = pds; prev < pd; prev++) + { + prev->out_flags = 0; + } + } + ready += 1; + pd->out_flags = out_flags_read | out_flags_write; + } + else + { + pd->out_flags = 0; /* pre-condition */ + + /* make sure this is an NSPR supported stack */ + bottom = PR_GetIdentitiesLayer(pd->fd, PR_NSPR_IO_LAYER); + PR_ASSERT(NULL != bottom); /* what to do about that? */ + if ((NULL != bottom) && + (_PR_FILEDESC_OPEN == bottom->secret->state)) + { + if (0 == ready) + { + PRInt32 osfd = bottom->secret->md.osfd; + if (osfd > maxfd) { + maxfd = osfd; + } + if (in_flags_read & PR_POLL_READ) + { + pd->out_flags |= _PR_POLL_READ_SYS_READ; +#ifdef BSD_SELECT + FD_SET(osfd, &rd); +#else + socks[rd] = osfd; + rd++; +#endif + } + if (in_flags_read & PR_POLL_WRITE) + { + pd->out_flags |= _PR_POLL_READ_SYS_WRITE; +#ifdef BSD_SELECT + FD_SET(osfd, &wt); +#else + socks[npds+wt] = osfd; + wt++; +#endif + } + if (in_flags_write & PR_POLL_READ) + { + pd->out_flags |= _PR_POLL_WRITE_SYS_READ; +#ifdef BSD_SELECT + FD_SET(osfd, &rd); +#else + socks[rd] = osfd; + rd++; +#endif + } + if (in_flags_write & PR_POLL_WRITE) + { + pd->out_flags |= _PR_POLL_WRITE_SYS_WRITE; +#ifdef BSD_SELECT + FD_SET(osfd, &wt); +#else + socks[npds+wt] = osfd; + wt++; +#endif + } + if (pd->in_flags & PR_POLL_EXCEPT) + { +#ifdef BSD_SELECT + FD_SET(osfd, &ex); +#else + socks[npds*2+ex] = osfd; + ex++; +#endif + } + } + } + else + { + if (0 == ready) + { + PRPollDesc *prev; + for (prev = pds; prev < pd; prev++) + { + prev->out_flags = 0; + } + } + ready += 1; /* this will cause an abrupt return */ + pd->out_flags = PR_POLL_NVAL; /* bogii */ + } + } + } + else + { + pd->out_flags = 0; + } + } + + if (0 != ready) + { +#ifndef BSD_SELECT + PR_Free(socks); +#endif + return ready; /* no need to block */ + } + + remaining = timeout; + start = PR_IntervalNow(); + +retry: +#ifdef BSD_SELECT + if (timeout != PR_INTERVAL_NO_TIMEOUT) + { + PRInt32 ticksPerSecond = PR_TicksPerSecond(); + tv.tv_sec = remaining / ticksPerSecond; + tv.tv_usec = PR_IntervalToMicroseconds( remaining % ticksPerSecond ); + tvp = &tv; + } + + ready = bsdselect(maxfd + 1, &rd, &wt, &ex, tvp); +#else + switch (timeout) + { + case PR_INTERVAL_NO_WAIT: + msecs = 0; + break; + case PR_INTERVAL_NO_TIMEOUT: + msecs = -1; + break; + default: + msecs = PR_IntervalToMilliseconds(remaining); + } + + /* compact array */ + for( i = rd, j = npds; j < npds+wt; i++,j++ ) { + socks[i] = socks[j]; + } + for( i = rd+wt, j = npds*2; j < npds*2+ex; i++,j++ ) { + socks[i] = socks[j]; + } + + ready = os2_select(socks, rd, wt, ex, msecs); +#endif + + if (ready == -1 && errno == EINTR) + { + if (timeout == PR_INTERVAL_NO_TIMEOUT) { + goto retry; + } + else + { + elapsed = (PRIntervalTime) (PR_IntervalNow() - start); + if (elapsed > timeout) { + ready = 0; /* timed out */ + } + else + { + remaining = timeout - elapsed; + goto retry; + } + } + } + + /* + ** Now to unravel the select sets back into the client's poll + ** descriptor list. Is this possibly an area for pissing away + ** a few cycles or what? + */ + if (ready > 0) + { + ready = 0; + for (pd = pds, epd = pd + npds; pd < epd; pd++) + { + PRInt16 out_flags = 0; + if ((NULL != pd->fd) && (0 != pd->in_flags)) + { + PRInt32 osfd; + bottom = PR_GetIdentitiesLayer(pd->fd, PR_NSPR_IO_LAYER); + PR_ASSERT(NULL != bottom); + + osfd = bottom->secret->md.osfd; + +#ifdef BSD_SELECT + if (FD_ISSET(osfd, &rd)) +#else + if( IsSocketSet(osfd, socks, 0, rd) ) +#endif + { + if (pd->out_flags & _PR_POLL_READ_SYS_READ) { + out_flags |= PR_POLL_READ; + } + if (pd->out_flags & _PR_POLL_WRITE_SYS_READ) { + out_flags |= PR_POLL_WRITE; + } + } + +#ifdef BSD_SELECT + if (FD_ISSET(osfd, &wt)) +#else + if( IsSocketSet(osfd, socks, rd, wt) ) +#endif + { + if (pd->out_flags & _PR_POLL_READ_SYS_WRITE) { + out_flags |= PR_POLL_READ; + } + if (pd->out_flags & _PR_POLL_WRITE_SYS_WRITE) { + out_flags |= PR_POLL_WRITE; + } + } + +#ifdef BSD_SELECT + if (FD_ISSET(osfd, &ex)) +#else + if( IsSocketSet(osfd, socks, rd+wt, ex) ) +#endif + { + out_flags |= PR_POLL_EXCEPT; + } + } + pd->out_flags = out_flags; + if (out_flags) { + ready++; + } + } + PR_ASSERT(ready > 0); + } + else if (ready < 0) + { + err = _MD_ERRNO(); + if (err == EBADF) + { + /* Find the bad fds */ + int optval; + int optlen = sizeof(optval); + ready = 0; + for (pd = pds, epd = pd + npds; pd < epd; pd++) + { + pd->out_flags = 0; + if ((NULL != pd->fd) && (0 != pd->in_flags)) + { + bottom = PR_GetIdentitiesLayer(pd->fd, PR_NSPR_IO_LAYER); + if (getsockopt(bottom->secret->md.osfd, SOL_SOCKET, + SO_TYPE, (char *) &optval, &optlen) == -1) + { + PR_ASSERT(sock_errno() == ENOTSOCK); + if (sock_errno() == ENOTSOCK) + { + pd->out_flags = PR_POLL_NVAL; + ready++; + } + } + } + } + PR_ASSERT(ready > 0); + } + else { + _PR_MD_MAP_SELECT_ERROR(err); + } + } + +#ifndef BSD_SELECT + PR_Free(socks); +#endif + return ready; +} + diff --git a/nsprpub/pr/src/md/os2/os2rng.c b/nsprpub/pr/src/md/os2/os2rng.c new file mode 100644 index 0000000000..aaa9693817 --- /dev/null +++ b/nsprpub/pr/src/md/os2/os2rng.c @@ -0,0 +1,83 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + + +#define INCL_DOS +#define INCL_DOSERRORS +#include <os2.h> +#include <stdlib.h> +#include <time.h> +#include "primpl.h" + +static BOOL clockTickTime(unsigned long *phigh, unsigned long *plow) +{ + APIRET rc = NO_ERROR; + QWORD qword = {0,0}; + + rc = DosTmrQueryTime(&qword); + if (rc != NO_ERROR) { + return FALSE; + } + + *phigh = qword.ulHi; + *plow = qword.ulLo; + + return TRUE; +} + +extern PRSize _PR_MD_GetRandomNoise(void *buf, PRSize size ) +{ + unsigned long high = 0; + unsigned long low = 0; + clock_t val = 0; + int n = 0; + int nBytes = 0; + time_t sTime; + + if (size <= 0) { + return 0; + } + + clockTickTime(&high, &low); + + /* get the maximally changing bits first */ + nBytes = sizeof(low) > size ? size : sizeof(low); + memcpy(buf, &low, nBytes); + n += nBytes; + size -= nBytes; + + if (size <= 0) { + return n; + } + + nBytes = sizeof(high) > size ? size : sizeof(high); + memcpy(((char *)buf) + n, &high, nBytes); + n += nBytes; + size -= nBytes; + + if (size <= 0) { + return n; + } + + /* get the number of milliseconds that have elapsed since application started */ + val = clock(); + + nBytes = sizeof(val) > size ? size : sizeof(val); + memcpy(((char *)buf) + n, &val, nBytes); + n += nBytes; + size -= nBytes; + + if (size <= 0) { + return n; + } + + /* get the time in seconds since midnight Jan 1, 1970 */ + time(&sTime); + nBytes = sizeof(sTime) > size ? size : sizeof(sTime); + memcpy(((char *)buf) + n, &sTime, nBytes); + n += nBytes; + + return n; +} diff --git a/nsprpub/pr/src/md/os2/os2sem.c b/nsprpub/pr/src/md/os2/os2sem.c new file mode 100644 index 0000000000..a0dd88e4bd --- /dev/null +++ b/nsprpub/pr/src/md/os2/os2sem.c @@ -0,0 +1,63 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +/* + * OS/2-specific semaphore handling code. + * + */ + +#include "primpl.h" + + +void +_PR_MD_NEW_SEM(_MDSemaphore *md, PRUintn value) +{ + int rv; + + /* Our Sems don't support a value > 1 */ + PR_ASSERT(value <= 1); + + rv = DosCreateEventSem(NULL, &md->sem, 0, 0); + PR_ASSERT(rv == NO_ERROR); +} + +void +_PR_MD_DESTROY_SEM(_MDSemaphore *md) +{ + int rv; + rv = DosCloseEventSem(md->sem); + PR_ASSERT(rv == NO_ERROR); + +} + +PRStatus +_PR_MD_TIMED_WAIT_SEM(_MDSemaphore *md, PRIntervalTime ticks) +{ + int rv; + rv = DosWaitEventSem(md->sem, PR_IntervalToMilliseconds(ticks)); + + if (rv == NO_ERROR) { + return PR_SUCCESS; + } + else { + return PR_FAILURE; + } +} + +PRStatus +_PR_MD_WAIT_SEM(_MDSemaphore *md) +{ + return _PR_MD_TIMED_WAIT_SEM(md, PR_INTERVAL_NO_TIMEOUT); +} + +void +_PR_MD_POST_SEM(_MDSemaphore *md) +{ + int rv; + rv = DosPostEventSem(md->sem); + PR_ASSERT(rv == NO_ERROR); +} + + diff --git a/nsprpub/pr/src/md/os2/os2sock.c b/nsprpub/pr/src/md/os2/os2sock.c new file mode 100644 index 0000000000..c6b3ea3a52 --- /dev/null +++ b/nsprpub/pr/src/md/os2/os2sock.c @@ -0,0 +1,669 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ + +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +/* OS/2 Sockets module + * + */ + +/*Note from DSR111297 - it should be noted that there are two flavors of select() on OS/2 */ +/*There is standard BSD (which is kind of slow) and a new flavor of select() that takes */ +/*an integer list of sockets, the number of read sockets, write sockets, except sockets, and */ +/*a millisecond count for timeout. In the interest of performance I have choosen the OS/2 */ +/*specific version of select(). See OS/2 TCP/IP Programmer's Toolkit for more info. */ + +#include "primpl.h" + +#include <sys/time.h> /* For timeval. */ + +#define _PR_INTERRUPT_CHECK_INTERVAL_SECS 5 +#define READ_FD 1 +#define WRITE_FD 2 + +/* --- SOCKET IO --------------------------------------------------------- */ + + +PRInt32 +_PR_MD_SOCKET(int domain, int type, int flags) +{ + PRInt32 osfd, err; + + osfd = socket(domain, type, flags); + + if (osfd == -1) + { + err = sock_errno(); + _PR_MD_MAP_SOCKET_ERROR(err); + } + + return(osfd); +} + +/* +** _MD_CloseSocket() -- Close a socket +** +*/ +PRInt32 +_MD_CloseSocket(PRInt32 osfd) +{ + PRInt32 rv, err; + + rv = soclose(osfd); + if (rv == -1) { + err = sock_errno(); + _PR_MD_MAP_CLOSE_ERROR(err); + } + return rv; +} + +PRInt32 +_MD_SocketAvailable(PRFileDesc *fd) +{ + PRInt32 result; + + if (so_ioctl(fd->secret->md.osfd, FIONREAD, (char *) &result, sizeof(result)) < 0) { + PR_SetError(PR_BAD_DESCRIPTOR_ERROR, sock_errno()); + return -1; + } + return result; +} + +static PRInt32 +socket_io_wait( PRInt32 osfd, PRInt32 fd_type, PRIntervalTime timeout ) +{ + PRInt32 rv = -1; + PRThread *me = _PR_MD_CURRENT_THREAD(); + PRIntervalTime epoch, now, elapsed, remaining; + PRBool wait_for_remaining; + PRInt32 syserror; +#ifdef BSD_SELECT + struct timeval tv; + fd_set rd_wr; +#else + int socks[1]; + long lTimeout; +#endif + + switch (timeout) { + case PR_INTERVAL_NO_WAIT: + PR_SetError(PR_IO_TIMEOUT_ERROR, 0); + break; + case PR_INTERVAL_NO_TIMEOUT: + /* + * This is a special case of the 'default' case below. + * Please see the comments there. + */ +#ifdef BSD_SELECT + tv.tv_sec = _PR_INTERRUPT_CHECK_INTERVAL_SECS; + tv.tv_usec = 0; + FD_ZERO(&rd_wr); + do { + FD_SET(osfd, &rd_wr); + if (fd_type == READ_FD) { + rv = bsdselect(osfd + 1, &rd_wr, NULL, NULL, &tv); + } + else { + rv = bsdselect(osfd + 1, NULL, &rd_wr, NULL, &tv); + } +#else + lTimeout = _PR_INTERRUPT_CHECK_INTERVAL_SECS * 1000; + do { + socks[0] = osfd; + if (fd_type == READ_FD) { + rv = os2_select(socks, 1, 0, 0, lTimeout); + } + else { + rv = os2_select(socks, 0, 1, 0, lTimeout); + } +#endif + if (rv == -1 && (syserror = sock_errno()) != EINTR) { + _PR_MD_MAP_SELECT_ERROR(syserror); + break; + } + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + rv = -1; + break; + } + } while (rv == 0 || (rv == -1 && syserror == EINTR)); + break; + default: + now = epoch = PR_IntervalNow(); + remaining = timeout; +#ifdef BSD_SELECT + FD_ZERO(&rd_wr); +#endif + do { + /* + * We block in select for at most + * _PR_INTERRUPT_CHECK_INTERVAL_SECS seconds, + * so that there is an upper limit on the delay + * before the interrupt bit is checked. + */ +#ifdef BSD_SELECT + wait_for_remaining = PR_TRUE; + tv.tv_sec = PR_IntervalToSeconds(remaining); + if (tv.tv_sec > _PR_INTERRUPT_CHECK_INTERVAL_SECS) { + wait_for_remaining = PR_FALSE; + tv.tv_sec = _PR_INTERRUPT_CHECK_INTERVAL_SECS; + tv.tv_usec = 0; + } else { + tv.tv_usec = PR_IntervalToMicroseconds( + remaining - + PR_SecondsToInterval(tv.tv_sec)); + } + FD_SET(osfd, &rd_wr); + if (fd_type == READ_FD) { + rv = bsdselect(osfd + 1, &rd_wr, NULL, NULL, &tv); + } + else { + rv = bsdselect(osfd + 1, NULL, &rd_wr, NULL, &tv); + } +#else + wait_for_remaining = PR_TRUE; + lTimeout = PR_IntervalToMilliseconds(remaining); + if (lTimeout > _PR_INTERRUPT_CHECK_INTERVAL_SECS * 1000) { + wait_for_remaining = PR_FALSE; + lTimeout = _PR_INTERRUPT_CHECK_INTERVAL_SECS * 1000; + } + socks[0] = osfd; + if (fd_type == READ_FD) { + rv = os2_select(socks, 1, 0, 0, lTimeout); + } + else { + rv = os2_select(socks, 0, 1, 0, lTimeout); + } +#endif + /* + * we don't consider EINTR a real error + */ + if (rv == -1 && (syserror = sock_errno()) != EINTR) { + _PR_MD_MAP_SELECT_ERROR(syserror); + break; + } + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + rv = -1; + break; + } + /* + * We loop again if select timed out or got interrupted + * by a signal, and the timeout deadline has not passed yet. + */ + if (rv == 0 || (rv == -1 && syserror == EINTR)) { + /* + * If select timed out, we know how much time + * we spent in blocking, so we can avoid a + * PR_IntervalNow() call. + */ + if (rv == 0) { + if (wait_for_remaining) { + now += remaining; + } else { +#ifdef BSD_SELECT + now += PR_SecondsToInterval(tv.tv_sec) + + PR_MicrosecondsToInterval(tv.tv_usec); +#else + now += PR_MillisecondsToInterval(lTimeout); +#endif + } + } else { + now = PR_IntervalNow(); + } + elapsed = (PRIntervalTime) (now - epoch); + if (elapsed >= timeout) { + PR_SetError(PR_IO_TIMEOUT_ERROR, 0); + rv = -1; + break; + } else { + remaining = timeout - elapsed; + } + } + } while (rv == 0 || (rv == -1 && syserror == EINTR)); + break; + } + return(rv); +} + +PRInt32 +_MD_Accept(PRFileDesc *fd, PRNetAddr *addr, + PRUint32 *addrlen, PRIntervalTime timeout) +{ + PRInt32 osfd = fd->secret->md.osfd; + PRInt32 rv, err; + PRThread *me = _PR_MD_CURRENT_THREAD(); + + while ((rv = accept(osfd, (struct sockaddr*) addr, (int*)addrlen)) == -1) + { + err = sock_errno(); + if ((err == EWOULDBLOCK) || (err == ECONNABORTED)) + { + if (fd->secret->nonblocking) { + break; + } + if ((rv = socket_io_wait(osfd, READ_FD, timeout)) < 0) { + goto done; + } + } else if ((err == EINTR) && (!_PR_PENDING_INTERRUPT(me))) { + continue; + } else { + break; + } + } + if (rv < 0) { + _PR_MD_MAP_ACCEPT_ERROR(err); + } +done: + return(rv); +} + +PRInt32 +_PR_MD_CONNECT(PRFileDesc *fd, const PRNetAddr *addr, PRUint32 addrlen, + PRIntervalTime timeout) +{ + PRInt32 rv, err; + PRThread *me = _PR_MD_CURRENT_THREAD(); + PRInt32 osfd = fd->secret->md.osfd; + PRNetAddr addrCopy = *addr; /* Work around a bug in OS/2 where connect + * modifies the sockaddr structure. + * See Bugzilla bug 100776. */ + + /* + * We initiate the connection setup by making a nonblocking connect() + * call. If the connect() call fails, there are two cases we handle + * specially: + * 1. The connect() call was interrupted by a signal. In this case + * we simply retry connect(). + * 2. The NSPR socket is nonblocking and connect() fails with + * EINPROGRESS. We first wait until the socket becomes writable. + * Then we try to find out whether the connection setup succeeded + * or failed. + */ + +retry: + if ((rv = connect(osfd, (struct sockaddr *)&addrCopy, addrlen)) == -1) + { + err = sock_errno(); + + if (err == EINTR) { + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError( PR_PENDING_INTERRUPT_ERROR, 0); + return -1; + } + goto retry; + } + + if (!fd->secret->nonblocking && (err == EINPROGRESS)) + { + /* + * socket_io_wait() may return -1 or 1. + */ + + rv = socket_io_wait(osfd, WRITE_FD, timeout); + if (rv == -1) { + return -1; + } + + PR_ASSERT(rv == 1); + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError( PR_PENDING_INTERRUPT_ERROR, 0); + return -1; + } + err = _MD_os2_get_nonblocking_connect_error(osfd); + if (err != 0) { + _PR_MD_MAP_CONNECT_ERROR(err); + return -1; + } + return 0; + } + + _PR_MD_MAP_CONNECT_ERROR(err); + } + + return rv; +} /* _MD_connect */ + +PRInt32 +_PR_MD_BIND(PRFileDesc *fd, const PRNetAddr *addr, PRUint32 addrlen) +{ + PRInt32 rv, err; + rv = bind(fd->secret->md.osfd, (struct sockaddr *) addr, (int )addrlen); + if (rv < 0) { + err = sock_errno(); + _PR_MD_MAP_BIND_ERROR(err); + } + return(rv); +} + + +PRInt32 +_PR_MD_LISTEN(PRFileDesc *fd, PRIntn backlog) +{ + PRInt32 rv, err; + rv = listen(fd->secret->md.osfd, backlog); + if (rv < 0) { + err = sock_errno(); + _PR_MD_MAP_DEFAULT_ERROR(err); + } + return(rv); +} + + +PRInt32 +_PR_MD_RECV(PRFileDesc *fd, void *buf, PRInt32 amount, PRIntn flags, + PRIntervalTime timeout) +{ + PRInt32 osfd = fd->secret->md.osfd; + PRInt32 rv, err; + PRThread *me = _PR_MD_CURRENT_THREAD(); + + while ((rv = recv(osfd,buf,amount,flags)) == -1) + { + err = sock_errno(); + if ((err == EWOULDBLOCK)) { + if (fd->secret->nonblocking) { + break; + } + if ((rv = socket_io_wait(osfd, READ_FD, timeout)) < 0) { + goto done; + } + } else if ((err == EINTR) && (!_PR_PENDING_INTERRUPT(me))) { + continue; + } else { + break; + } + } + if (rv < 0) { + _PR_MD_MAP_RECV_ERROR(err); + } +done: + return(rv); +} + +PRInt32 +_PR_MD_SEND(PRFileDesc *fd, const void *buf, PRInt32 amount, PRIntn flags, + PRIntervalTime timeout) +{ + PRInt32 osfd = fd->secret->md.osfd; + PRInt32 rv, err; + PRThread *me = _PR_MD_CURRENT_THREAD(); + + while ((rv = send(osfd,buf,amount,flags)) == -1) + { + err = sock_errno(); + if ((err == EWOULDBLOCK)) { + if (fd->secret->nonblocking) { + break; + } + if ((rv = socket_io_wait(osfd, WRITE_FD, timeout)) < 0) { + goto done; + } + } else if ((err == EINTR) && (!_PR_PENDING_INTERRUPT(me))) { + continue; + } else { + break; + } + } + + /* + * optimization; if bytes sent is less than "amount" call + * select before returning. This is because it is likely that + * the next send() call will return EWOULDBLOCK. + */ + if ((!fd->secret->nonblocking) && (rv > 0) && (rv < amount) + && (timeout != PR_INTERVAL_NO_WAIT)) + { + if (socket_io_wait(osfd, WRITE_FD, timeout)< 0) { + rv = -1; + goto done; + } + } + if (rv < 0) { + _PR_MD_MAP_SEND_ERROR(err); + } +done: + return(rv); +} + +PRInt32 +_PR_MD_SENDTO(PRFileDesc *fd, const void *buf, PRInt32 amount, PRIntn flags, + const PRNetAddr *addr, PRUint32 addrlen, PRIntervalTime timeout) +{ + PRInt32 osfd = fd->secret->md.osfd; + PRInt32 rv, err; + PRThread *me = _PR_MD_CURRENT_THREAD(); + while ((rv = sendto(osfd, buf, amount, flags, + (struct sockaddr *) addr, addrlen)) == -1) + { + err = sock_errno(); + if ((err == EWOULDBLOCK)) + { + if (fd->secret->nonblocking) { + break; + } + if ((rv = socket_io_wait(osfd, WRITE_FD, timeout)) < 0) { + goto done; + } + } else if ((err == EINTR) && (!_PR_PENDING_INTERRUPT(me))) { + continue; + } else { + break; + } + } + if (rv < 0) { + _PR_MD_MAP_SENDTO_ERROR(err); + } +done: + return(rv); +} + +PRInt32 +_PR_MD_RECVFROM(PRFileDesc *fd, void *buf, PRInt32 amount, PRIntn flags, + PRNetAddr *addr, PRUint32 *addrlen, PRIntervalTime timeout) +{ + PRInt32 osfd = fd->secret->md.osfd; + PRInt32 rv, err; + PRThread *me = _PR_MD_CURRENT_THREAD(); + + while( (*addrlen = PR_NETADDR_SIZE(addr)), + ((rv = recvfrom(osfd, buf, amount, flags, + (struct sockaddr *) addr, (int *)addrlen)) == -1)) + { + err = sock_errno(); + if ((err == EWOULDBLOCK)) { + if (fd->secret->nonblocking) { + break; + } + if ((rv = socket_io_wait(osfd, READ_FD, timeout)) < 0) { + goto done; + } + } else if ((err == EINTR) && (!_PR_PENDING_INTERRUPT(me))) { + continue; + } else { + break; + } + } + if (rv < 0) { + _PR_MD_MAP_RECVFROM_ERROR(err); + } +done: + return(rv); +} + +PRInt32 +_PR_MD_WRITEV(PRFileDesc *fd, const PRIOVec *iov, PRInt32 iov_size, + PRIntervalTime timeout) +{ + PRInt32 rv, err; + PRThread *me = _PR_MD_CURRENT_THREAD(); + PRInt32 index, amount = 0; + PRInt32 osfd = fd->secret->md.osfd; + struct iovec osiov[PR_MAX_IOVECTOR_SIZE]; + + /* Ensured by PR_Writev */ + PR_ASSERT(iov_size <= PR_MAX_IOVECTOR_SIZE); + + /* + * We can't pass iov to so_writev because PRIOVec and struct iovec + * may not be binary compatible. Make osiov a copy of iov and + * pass osiov to so_writev . + */ + for (index = 0; index < iov_size; index++) { + osiov[index].iov_base = iov[index].iov_base; + osiov[index].iov_len = iov[index].iov_len; + } + + /* + * Calculate the total number of bytes to be sent; needed for + * optimization later. + * We could avoid this if this number was passed in; but it is + * probably not a big deal because iov_size is usually small (less than + * 3) + */ + if (!fd->secret->nonblocking) { + for (index=0; index<iov_size; index++) { + amount += iov[index].iov_len; + } + } + + while ((rv = so_writev(osfd, osiov, iov_size)) == -1) { + err = sock_errno(); + if ((err == EWOULDBLOCK)) { + if (fd->secret->nonblocking) { + break; + } + if ((rv = socket_io_wait(osfd, WRITE_FD, timeout))<0) { + goto done; + } + } else if ((err == EINTR) && (!_PR_PENDING_INTERRUPT(me))) { + continue; + } else { + break; + } + } + + /* + * optimization; if bytes sent is less than "amount" call + * select before returning. This is because it is likely that + * the next writev() call will return EWOULDBLOCK. + */ + if ((!fd->secret->nonblocking) && (rv > 0) && (rv < amount) + && (timeout != PR_INTERVAL_NO_WAIT)) { + if (socket_io_wait(osfd, WRITE_FD, timeout) < 0) { + rv = -1; + goto done; + } + } + if (rv < 0) { + _PR_MD_MAP_WRITEV_ERROR(err); + } +done: + return(rv); +} + +PRInt32 +_PR_MD_SHUTDOWN(PRFileDesc *fd, PRIntn how) +{ + PRInt32 rv; + + rv = shutdown(fd->secret->md.osfd, how); + if (rv < 0) { + _PR_MD_MAP_SHUTDOWN_ERROR(sock_errno()); + } + return rv; +} + +PRInt32 +_PR_MD_SOCKETPAIR(int af, int type, int flags, PRInt32 *osfd) +{ + PRInt32 rv, err; + + rv = socketpair(af, type, flags, osfd); + if (rv < 0) { + err = _MD_ERRNO(); + _PR_MD_MAP_SOCKETPAIR_ERROR(err); + } + return rv; +} + +PRStatus +_PR_MD_GETSOCKNAME(PRFileDesc *fd, PRNetAddr *addr, PRUint32 *addrlen) +{ + PRInt32 rv, err; + + rv = getsockname(fd->secret->md.osfd, + (struct sockaddr *) addr, (int *)addrlen); + if (rv < 0) { + err = sock_errno(); + _PR_MD_MAP_GETSOCKNAME_ERROR(err); + } + return rv==0?PR_SUCCESS:PR_FAILURE; +} + +PRStatus +_PR_MD_GETPEERNAME(PRFileDesc *fd, PRNetAddr *addr, PRUint32 *addrlen) +{ + PRInt32 rv, err; + + rv = getpeername(fd->secret->md.osfd, + (struct sockaddr *) addr, (int *)addrlen); + if (rv < 0) { + err = sock_errno(); + _PR_MD_MAP_GETPEERNAME_ERROR(err); + } + return rv==0?PR_SUCCESS:PR_FAILURE; +} + +PRStatus +_PR_MD_GETSOCKOPT(PRFileDesc *fd, PRInt32 level, PRInt32 optname, + char* optval, PRInt32* optlen) +{ + PRInt32 rv, err; + + rv = getsockopt(fd->secret->md.osfd, level, optname, optval, (int *)optlen); + if (rv < 0) { + err = sock_errno(); + _PR_MD_MAP_GETSOCKOPT_ERROR(err); + } + return rv==0?PR_SUCCESS:PR_FAILURE; +} + +PRStatus +_PR_MD_SETSOCKOPT(PRFileDesc *fd, PRInt32 level, PRInt32 optname, + const char* optval, PRInt32 optlen) +{ + PRInt32 rv, err; + + rv = setsockopt(fd->secret->md.osfd, level, optname, optval, optlen); + if (rv < 0) { + err = sock_errno(); + _PR_MD_MAP_SETSOCKOPT_ERROR(err); + } + return rv==0?PR_SUCCESS:PR_FAILURE; +} + +void +_MD_MakeNonblock(PRFileDesc *fd) +{ + PRInt32 osfd = fd->secret->md.osfd; + PRInt32 err; + PRUint32 one = 1; + + if (osfd <= 2) { + /* Don't mess around with stdin, stdout or stderr */ + return; + } + + err = so_ioctl( osfd, FIONBIO, (char *) &one, sizeof(one)); + if ( err != 0 ) + { + err = sock_errno(); + _PR_MD_MAP_SOCKET_ERROR(err); + } +} diff --git a/nsprpub/pr/src/md/os2/os2thred.c b/nsprpub/pr/src/md/os2/os2thred.c new file mode 100644 index 0000000000..aa929a1a23 --- /dev/null +++ b/nsprpub/pr/src/md/os2/os2thred.c @@ -0,0 +1,353 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "primpl.h" +#include <process.h> /* for _beginthread() */ +#include <signal.h> +#include <float.h> + +/* --- globals ------------------------------------------------ */ +_NSPR_TLS* pThreadLocalStorage = 0; +_PRInterruptTable _pr_interruptTable[] = { { 0 } }; +APIRET (* APIENTRY QueryThreadContext)(TID, ULONG, PCONTEXTRECORD); + +void +_PR_MD_ENSURE_TLS(void) +{ + if(!pThreadLocalStorage) + { + /* Allocate thread local storage (TLS). Note, that only 32 bytes can + * be allocated at a time. + */ + int rc = DosAllocThreadLocalMemory(sizeof(_NSPR_TLS) / 4, (PULONG*)&pThreadLocalStorage); + PR_ASSERT(rc == NO_ERROR); + memset(pThreadLocalStorage, 0, sizeof(_NSPR_TLS)); + } +} + +void +_PR_MD_EARLY_INIT() +{ + HMODULE hmod; + + if (DosLoadModule(NULL, 0, "DOSCALL1", &hmod) == 0) + DosQueryProcAddr(hmod, 877, "DOSQUERYTHREADCONTEXT", + (PFN *)&QueryThreadContext); +} + +static void +_pr_SetThreadMDHandle(PRThread *thread) +{ + PTIB ptib; + PPIB ppib; + PRUword rc; + + rc = DosGetInfoBlocks(&ptib, &ppib); + + thread->md.handle = ptib->tib_ptib2->tib2_ultid; +} + +/* On OS/2, some system function calls seem to change the FPU control word, + * such that we crash with a floating underflow exception. The FIX_FPU() call + * in jsnum.c does not always work, as sometimes FIX_FPU() is called BEFORE the + * OS/2 system call that horks the FPU control word. So, we set an exception + * handler that covers any floating point exceptions and resets the FPU CW to + * the required value. + */ +static ULONG +_System OS2_FloatExcpHandler(PEXCEPTIONREPORTRECORD p1, + PEXCEPTIONREGISTRATIONRECORD p2, + PCONTEXTRECORD p3, + PVOID pv) +{ +#ifdef DEBUG_pedemonte + printf("Entering exception handler; ExceptionNum = %x\n", p1->ExceptionNum); + switch(p1->ExceptionNum) { + case XCPT_FLOAT_DENORMAL_OPERAND: + printf("got XCPT_FLOAT_DENORMAL_OPERAND\n"); + break; + case XCPT_FLOAT_DIVIDE_BY_ZERO: + printf("got XCPT_FLOAT_DIVIDE_BY_ZERO\n"); + break; + case XCPT_FLOAT_INEXACT_RESULT: + printf("got XCPT_FLOAT_INEXACT_RESULT\n"); + break; + case XCPT_FLOAT_INVALID_OPERATION: + printf("got XCPT_FLOAT_INVALID_OPERATION\n"); + break; + case XCPT_FLOAT_OVERFLOW: + printf("got XCPT_FLOAT_OVERFLOW\n"); + break; + case XCPT_FLOAT_STACK_CHECK: + printf("got XCPT_FLOAT_STACK_CHECK\n"); + break; + case XCPT_FLOAT_UNDERFLOW: + printf("got XCPT_FLOAT_UNDERFLOW\n"); + break; + } +#endif + + switch(p1->ExceptionNum) { + case XCPT_FLOAT_DENORMAL_OPERAND: + case XCPT_FLOAT_DIVIDE_BY_ZERO: + case XCPT_FLOAT_INEXACT_RESULT: + case XCPT_FLOAT_INVALID_OPERATION: + case XCPT_FLOAT_OVERFLOW: + case XCPT_FLOAT_STACK_CHECK: + case XCPT_FLOAT_UNDERFLOW: + { + unsigned cw = p3->ctx_env[0]; + if ((cw & MCW_EM) != MCW_EM) { + /* Mask out all floating point exceptions */ + p3->ctx_env[0] |= MCW_EM; + /* Following two lines set precision to 53 bit mantissa. See jsnum.c */ + p3->ctx_env[0] &= ~MCW_PC; + p3->ctx_env[0] |= PC_53; + return XCPT_CONTINUE_EXECUTION; + } + } + } + return XCPT_CONTINUE_SEARCH; +} + +PR_IMPLEMENT(void) +PR_OS2_SetFloatExcpHandler(EXCEPTIONREGISTRATIONRECORD* excpreg) +{ + /* setup the exception handler for the thread */ + APIRET rv; + excpreg->ExceptionHandler = OS2_FloatExcpHandler; + excpreg->prev_structure = NULL; + rv = DosSetExceptionHandler(excpreg); + PR_ASSERT(rv == NO_ERROR); +} + +PR_IMPLEMENT(void) +PR_OS2_UnsetFloatExcpHandler(EXCEPTIONREGISTRATIONRECORD* excpreg) +{ + /* unset exception handler */ + APIRET rv = DosUnsetExceptionHandler(excpreg); + PR_ASSERT(rv == NO_ERROR); +} + +PRStatus +_PR_MD_INIT_THREAD(PRThread *thread) +{ + APIRET rv; + + if (thread->flags & (_PR_PRIMORDIAL | _PR_ATTACHED)) { + _pr_SetThreadMDHandle(thread); + } + + /* Create the blocking IO semaphore */ + rv = DosCreateEventSem(NULL, &(thread->md.blocked_sema), 0, 0); + return (rv == NO_ERROR) ? PR_SUCCESS : PR_FAILURE; +} + +typedef struct param_store +{ + void (*start)(void *); + PRThread* thread; +} PARAMSTORE; + +/* This is a small intermediate function that sets/unsets the exception + handler before calling the initial thread function */ +static void +ExcpStartFunc(void* arg) +{ + EXCEPTIONREGISTRATIONRECORD excpreg; + PARAMSTORE params, *pParams = arg; + + PR_OS2_SetFloatExcpHandler(&excpreg); + + params = *pParams; + PR_Free(pParams); + params.start(params.thread); + + PR_OS2_UnsetFloatExcpHandler(&excpreg); +} + +PRStatus +_PR_MD_CREATE_THREAD(PRThread *thread, + void (*start)(void *), + PRThreadPriority priority, + PRThreadScope scope, + PRThreadState state, + PRUint32 stackSize) +{ + PARAMSTORE* params = PR_Malloc(sizeof(PARAMSTORE)); + params->start = start; + params->thread = thread; + thread->md.handle = thread->id = (TID) _beginthread(ExcpStartFunc, + NULL, + thread->stack->stackSize, + params); + if(thread->md.handle == -1) { + return PR_FAILURE; + } + + /* + * On OS/2, a thread is created with a thread priority of + * THREAD_PRIORITY_NORMAL + */ + + if (priority != PR_PRIORITY_NORMAL) { + _PR_MD_SET_PRIORITY(&(thread->md), priority); + } + + return PR_SUCCESS; +} + +void +_PR_MD_YIELD(void) +{ + /* Isn't there some problem with DosSleep(0) on OS/2? */ + DosSleep(0); +} + +void +_PR_MD_SET_PRIORITY(_MDThread *thread, PRThreadPriority newPri) +{ + int nativePri = PRTYC_NOCHANGE; + BOOL rv; + + if (newPri < PR_PRIORITY_FIRST) { + newPri = PR_PRIORITY_FIRST; + } else if (newPri > PR_PRIORITY_LAST) { + newPri = PR_PRIORITY_LAST; + } + switch (newPri) { + case PR_PRIORITY_LOW: + case PR_PRIORITY_NORMAL: + nativePri = PRTYC_REGULAR; + break; + case PR_PRIORITY_HIGH: + nativePri = PRTYC_FOREGROUNDSERVER; + break; + case PR_PRIORITY_URGENT: + nativePri = PRTYC_TIMECRITICAL; + } + rv = DosSetPriority(PRTYS_THREAD, nativePri, 0, thread->handle); + PR_ASSERT(rv == NO_ERROR); + if (rv != NO_ERROR) { + PR_LOG(_pr_thread_lm, PR_LOG_MIN, + ("PR_SetThreadPriority: can't set thread priority\n")); + } + return; +} + +void +_PR_MD_CLEAN_THREAD(PRThread *thread) +{ + APIRET rv; + + if (thread->md.blocked_sema) { + rv = DosCloseEventSem(thread->md.blocked_sema); + PR_ASSERT(rv == NO_ERROR); + thread->md.blocked_sema = 0; + } + + if (thread->md.handle) { + thread->md.handle = 0; + } +} + +void +_PR_MD_EXIT_THREAD(PRThread *thread) +{ + _PR_MD_CLEAN_THREAD(thread); + _PR_MD_SET_CURRENT_THREAD(NULL); +} + + +void +_PR_MD_EXIT(PRIntn status) +{ + _exit(status); +} + +#ifdef HAVE_THREAD_AFFINITY +PR_EXTERN(PRInt32) +_PR_MD_SETTHREADAFFINITYMASK(PRThread *thread, PRUint32 mask ) +{ + /* Can we do this on OS/2? Only on SMP versions? */ + PR_NOT_REACHED("Not implemented"); + return 0; + + /* This is what windows does: + int rv; + + rv = SetThreadAffinityMask(thread->md.handle, mask); + + return rv?0:-1; + */ +} + +PR_EXTERN(PRInt32) +_PR_MD_GETTHREADAFFINITYMASK(PRThread *thread, PRUint32 *mask) +{ + /* Can we do this on OS/2? Only on SMP versions? */ + PR_NOT_REACHED("Not implemented"); + return 0; + + /* This is what windows does: + PRInt32 rv, system_mask; + + rv = GetProcessAffinityMask(GetCurrentProcess(), mask, &system_mask); + + return rv?0:-1; + */ +} +#endif /* HAVE_THREAD_AFFINITY */ + +void +_PR_MD_SUSPEND_CPU(_PRCPU *cpu) +{ + _PR_MD_SUSPEND_THREAD(cpu->thread); +} + +void +_PR_MD_RESUME_CPU(_PRCPU *cpu) +{ + _PR_MD_RESUME_THREAD(cpu->thread); +} + +void +_PR_MD_SUSPEND_THREAD(PRThread *thread) +{ + if (_PR_IS_NATIVE_THREAD(thread)) { + APIRET rc; + + /* XXXMB - DosSuspendThread() is not a blocking call; how do we + * know when the thread is *REALLY* suspended? + */ + rc = DosSuspendThread(thread->md.handle); + PR_ASSERT(rc == NO_ERROR); + } +} + +void +_PR_MD_RESUME_THREAD(PRThread *thread) +{ + if (_PR_IS_NATIVE_THREAD(thread)) { + DosResumeThread(thread->md.handle); + } +} + + +PRThread* +_MD_CURRENT_THREAD(void) +{ + PRThread *thread; + + thread = _MD_GET_ATTACHED_THREAD(); + + if (NULL == thread) { + thread = _PRI_AttachThread(PR_USER_THREAD, PR_PRIORITY_NORMAL, NULL, 0); + } + + PR_ASSERT(thread != NULL); + return thread; +} + diff --git a/nsprpub/pr/src/md/os2/os2vaclegacy.s b/nsprpub/pr/src/md/os2/os2vaclegacy.s new file mode 100644 index 0000000000..3dc1468752 --- /dev/null +++ b/nsprpub/pr/src/md/os2/os2vaclegacy.s @@ -0,0 +1,45 @@ +/ -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- +/ +/ This Source Code Form is subject to the terms of the Mozilla Public +/ License, v. 2.0. If a copy of the MPL was not distributed with this +/ file, You can obtain one at http://mozilla.org/MPL/2.0/. + + .text + .align 4 + .globl PR_NewMonitor +PR_NewMonitor: + jmp _PR_NewMonitor + + .align 4 + .globl PR_EnterMonitor +PR_EnterMonitor: + mov %eax, 4(%esp) + jmp _PR_EnterMonitor + + .align 4 + .globl PR_ExitMonitor +PR_ExitMonitor: + mov %eax, 4(%esp) + jmp _PR_ExitMonitor + + + + .align 4 + .globl PR_AttachThread +PR_AttachThread: + mov %eax, 4(%esp) + mov %edx, 8(%esp) + mov %ecx, 12(%esp) + jmp _PR_AttachThread + + .align 4 + .globl PR_DetachThread +PR_DetachThread: + jmp _PR_DetachThread + + .align 4 + .globl PR_GetCurrentThread +PR_GetCurrentThread: + jmp _PR_GetCurrentThread + + diff --git a/nsprpub/pr/src/md/prosdep.c b/nsprpub/pr/src/md/prosdep.c new file mode 100644 index 0000000000..0b1f3e597a --- /dev/null +++ b/nsprpub/pr/src/md/prosdep.c @@ -0,0 +1,69 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "prbit.h" +#include "prsystem.h" + +#ifdef XP_UNIX +#include <unistd.h> +#endif +#ifdef _WIN32 +#include <windows.h> +#endif + +PRInt32 _pr_pageShift; +PRInt32 _pr_pageSize; + +/* +** Get system page size +*/ +static void GetPageSize(void) +{ + PRInt32 pageSize; + + /* Get page size */ +#ifdef XP_UNIX +#if defined BSDI || defined AIX \ + || defined LINUX || defined __GNU__ || defined __GLIBC__ \ + || defined FREEBSD || defined NETBSD || defined OPENBSD \ + || defined DARWIN + _pr_pageSize = getpagesize(); +#elif defined(HPUX) + /* I have no idea. Don't get me started. --Rob */ + _pr_pageSize = sysconf(_SC_PAGE_SIZE); +#else + _pr_pageSize = sysconf(_SC_PAGESIZE); +#endif +#endif /* XP_UNIX */ + +#ifdef XP_PC +#ifdef _WIN32 + SYSTEM_INFO info; + GetSystemInfo(&info); + _pr_pageSize = info.dwPageSize; +#else + _pr_pageSize = 4096; +#endif +#endif /* XP_PC */ + + pageSize = _pr_pageSize; + PR_CEILING_LOG2(_pr_pageShift, pageSize); +} + +PR_IMPLEMENT(PRInt32) PR_GetPageShift(void) +{ + if (!_pr_pageSize) { + GetPageSize(); + } + return _pr_pageShift; +} + +PR_IMPLEMENT(PRInt32) PR_GetPageSize(void) +{ + if (!_pr_pageSize) { + GetPageSize(); + } + return _pr_pageSize; +} diff --git a/nsprpub/pr/src/md/unix/Makefile.in b/nsprpub/pr/src/md/unix/Makefile.in new file mode 100644 index 0000000000..f241840f8b --- /dev/null +++ b/nsprpub/pr/src/md/unix/Makefile.in @@ -0,0 +1,99 @@ +# +# This Source Code Form is subject to the terms of the Mozilla Public +# License, v. 2.0. If a copy of the MPL was not distributed with this +# file, You can obtain one at http://mozilla.org/MPL/2.0/. + + +MOD_DEPTH = ../../../.. +topsrcdir = @top_srcdir@ +srcdir = @srcdir@ +VPATH = @srcdir@ + +include $(MOD_DEPTH)/config/autoconf.mk + +include $(topsrcdir)/config/config.mk + +CSRCS = \ + unix.c \ + unix_errors.c \ + uxproces.c \ + uxrng.c \ + uxshm.c \ + uxwrap.c \ + $(NULL) + +ifneq ($(USE_PTHREADS),1) +CSRCS += uxpoll.c +endif + +ifeq ($(PTHREADS_USER),1) +CSRCS += pthreads_user.c +endif + +CSRCS += $(PR_MD_CSRCS) +ASFILES += $(PR_MD_ASFILES) + +TARGETS = $(OBJS) + +ifeq ($(OS_ARCH),SunOS) + ifeq ($(CPU_ARCH),sparc) + ifdef USE_64 + ULTRASPARC_ASFILES = os_SunOS_sparcv9.s + ULTRASPARC_ASOBJS = $(addprefix $(OBJDIR)/,$(ULTRASPARC_ASFILES:.s=.$(OBJ_SUFFIX))) + else + LIBRARY_NAME = $(ULTRASPARC_LIBRARY) + LIBRARY_VERSION = $(MOD_MAJOR_VERSION) + ULTRASPARC_ASFILES = os_SunOS_ultrasparc.s + ULTRASPARC_ASOBJS = $(addprefix $(OBJDIR)/,$(ULTRASPARC_ASFILES:.s=.$(OBJ_SUFFIX))) + TARGETS += $(ULTRASPARC_ASOBJS) $(SHARED_LIBRARY) + RELEASE_LIBS = $(SHARED_LIBRARY) + RELEASE_LIBS_DEST = $(RELEASE_LIB_DIR)/cpu/sparcv8plus + lib_subdir = cpu/sparcv8plus + endif + endif +endif + +INCLUDES = -I$(dist_includedir) -I$(topsrcdir)/pr/include -I$(topsrcdir)/pr/include/private + +DEFINES += -D_NSPR_BUILD_ + +include $(topsrcdir)/config/rules.mk + +export:: $(TARGETS) + +ifeq ($(OS_ARCH),SunOS) +ifeq ($(CPU_ARCH),sparc) + +ifdef USE_64 +$(ULTRASPARC_ASOBJS): $(ULTRASPARC_ASFILES) + /usr/ccs/bin/as -o $@ -K PIC -P -D_ASM -D__STDC__=0 -xarch=v9 $< +else +$(SHARED_LIBRARY): $(ULTRASPARC_ASOBJS) + $(LD) -G -z text -z endfiltee -o $@ $(ULTRASPARC_ASOBJS) + $(INSTALL) -m 444 $@ $(dist_libdir)/cpu/sparcv8plus + $(INSTALL) -m 444 $@ $(dist_bindir)/cpu/sparcv8plus +# +# The -f $(ORIGIN)/... linker flag uses the real file, after symbolic links +# are resolved, as the origin. If NSDISTMODE is not "copy", libnspr4.so +# will be installed as a symbolic link in $(dist_libdir), pointing to the +# real libnspr4.so file in pr/src. Therefore we need to install an +# additional copy of libnspr_flt4.so in pr/src/cpu/sparcv8plus. +# +ifneq ($(NSDISTMODE),copy) + $(INSTALL) -m 444 $@ ../../cpu/sparcv8plus +endif + +ifneq ($(NSDISTMODE),copy) +clobber realclean clobber_all distclean:: + rm -rf ../../cpu +endif + +$(ULTRASPARC_ASOBJS): $(ULTRASPARC_ASFILES) + /usr/ccs/bin/as -o $@ -K PIC -P -D_ASM -D__STDC__=0 -xarch=v8plus $< + +clean:: + rm -rf $(ULTRASPARC_ASOBJS) +endif + +endif +endif diff --git a/nsprpub/pr/src/md/unix/aix.c b/nsprpub/pr/src/md/unix/aix.c new file mode 100644 index 0000000000..c632c5790e --- /dev/null +++ b/nsprpub/pr/src/md/unix/aix.c @@ -0,0 +1,302 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "primpl.h" + +#ifdef AIX_HAVE_ATOMIC_OP_H +#include <sys/atomic_op.h> + +PRInt32 _AIX_AtomicSet(PRInt32 *val, PRInt32 newval) +{ + PRIntn oldval; + boolean_t stored; + oldval = fetch_and_add((atomic_p)val, 0); + do + { + stored = compare_and_swap((atomic_p)val, &oldval, newval); + } while (!stored); + return oldval; +} /* _AIX_AtomicSet */ +#endif /* AIX_HAVE_ATOMIC_OP_H */ + +#if defined(AIX_TIMERS) + +#include <sys/time.h> + +static PRUint32 _aix_baseline_epoch; + +static void _MD_AixIntervalInit(void) +{ + timebasestruct_t real_time; + read_real_time(&real_time, TIMEBASE_SZ); + (void)time_base_to_time(&real_time, TIMEBASE_SZ); + _aix_baseline_epoch = real_time.tb_high; +} /* _MD_AixIntervalInit */ + +PRIntervalTime _MD_AixGetInterval(void) +{ + PRIntn rv; + PRUint64 temp; + timebasestruct_t real_time; + read_real_time(&real_time, TIMEBASE_SZ); + (void)time_base_to_time(&real_time, TIMEBASE_SZ); + /* tb_high is in seconds, tb_low in 10(-9)seconds */ + temp = 1000000000ULL * (PRUint64)(real_time.tb_high - _aix_baseline_epoch); + temp += (PRUint64)real_time.tb_low; /* everything's 10(-9) seconds */ + temp >>= 16; /* now it's something way different */ + return (PRIntervalTime)temp; +} /* _MD_AixGetInterval */ + +PRIntervalTime _MD_AixIntervalPerSec(void) +{ + return 1000000000ULL >> 16; /* that's 15258, I think */ +} /* _MD_AixIntervalPerSec */ + +#endif /* defined(AIX_TIMERS) */ + +#if !defined(PTHREADS_USER) + +#if defined(_PR_PTHREADS) + +/* + * AIX 4.3 has sched_yield(). AIX 4.2 has pthread_yield(). + * So we look up the appropriate function pointer at run time. + */ + +#include <dlfcn.h> + +int (*_PT_aix_yield_fcn)() = NULL; +int _pr_aix_send_file_use_disabled = 0; + +void _MD_EarlyInit(void) +{ + void *main_app_handle; + char *evp; + + main_app_handle = dlopen(NULL, RTLD_NOW); + PR_ASSERT(NULL != main_app_handle); + + _PT_aix_yield_fcn = (int(*)())dlsym(main_app_handle, "sched_yield"); + if (!_PT_aix_yield_fcn) { + _PT_aix_yield_fcn = (int(*)())dlsym(main_app_handle,"pthread_yield"); + PR_ASSERT(NULL != _PT_aix_yield_fcn); + } + dlclose(main_app_handle); + + if (evp = getenv("NSPR_AIX_SEND_FILE_USE_DISABLED")) { + if (1 == atoi(evp)) { + _pr_aix_send_file_use_disabled = 1; + } + } + +#if defined(AIX_TIMERS) + _MD_AixIntervalInit(); +#endif +} + +#else /* _PR_PTHREADS */ + +void _MD_EarlyInit(void) +{ +#if defined(AIX_TIMERS) + _MD_AixIntervalInit(); +#endif +} + +#endif /* _PR_PTHREADS */ + +PRWord *_MD_HomeGCRegisters(PRThread *t, int isCurrent, int *np) +{ +#ifndef _PR_PTHREADS + if (isCurrent) { + (void) setjmp(CONTEXT(t)); + } + *np = sizeof(CONTEXT(t)) / sizeof(PRWord); + return (PRWord *) CONTEXT(t); +#else + *np = 0; + return NULL; +#endif +} + +#ifndef _PR_PTHREADS +PR_IMPLEMENT(void) +_MD_SET_PRIORITY(_MDThread *thread, PRUintn newPri) +{ + return; +} + +PR_IMPLEMENT(PRStatus) +_MD_InitializeThread(PRThread *thread) +{ + return PR_SUCCESS; +} + +PR_IMPLEMENT(PRStatus) +_MD_WAIT(PRThread *thread, PRIntervalTime ticks) +{ + PR_ASSERT(!(thread->flags & _PR_GLOBAL_SCOPE)); + _PR_MD_SWITCH_CONTEXT(thread); + return PR_SUCCESS; +} + +PR_IMPLEMENT(PRStatus) +_MD_WAKEUP_WAITER(PRThread *thread) +{ + if (thread) { + PR_ASSERT(!(thread->flags & _PR_GLOBAL_SCOPE)); + } + return PR_SUCCESS; +} + +/* These functions should not be called for AIX */ +PR_IMPLEMENT(void) +_MD_YIELD(void) +{ + PR_NOT_REACHED("_MD_YIELD should not be called for AIX."); +} + +PR_IMPLEMENT(PRStatus) +_MD_CREATE_THREAD( + PRThread *thread, + void (*start) (void *), + PRThreadPriority priority, + PRThreadScope scope, + PRThreadState state, + PRUint32 stackSize) +{ + PR_NOT_REACHED("_MD_CREATE_THREAD should not be called for AIX."); +} +#endif /* _PR_PTHREADS */ +#endif /* PTHREADS_USER */ + +/* + * NSPR 2.0 overrides the system select() and poll() functions. + * On AIX 4.2, we use dlopen("/unix", RTLD_NOW) and dlsym() to get + * at the original system select() and poll() functions. + */ + +#if !defined(AIX_RENAME_SELECT) + +#include <sys/select.h> +#include <sys/poll.h> +#include <dlfcn.h> + +static int (*aix_select_fcn)() = NULL; +static int (*aix_poll_fcn)() = NULL; + +int _MD_SELECT(int width, fd_set *r, fd_set *w, fd_set *e, struct timeval *t) +{ + int rv; + + if (!aix_select_fcn) { + void *aix_handle; + + aix_handle = dlopen("/unix", RTLD_NOW); + if (!aix_handle) { + PR_SetError(PR_UNKNOWN_ERROR, 0); + return -1; + } + aix_select_fcn = (int(*)())dlsym(aix_handle,"select"); + dlclose(aix_handle); + if (!aix_select_fcn) { + PR_SetError(PR_UNKNOWN_ERROR, 0); + return -1; + } + } + rv = (*aix_select_fcn)(width, r, w, e, t); + return rv; +} + +int _MD_POLL(void *listptr, unsigned long nfds, long timeout) +{ + int rv; + + if (!aix_poll_fcn) { + void *aix_handle; + + aix_handle = dlopen("/unix", RTLD_NOW); + if (!aix_handle) { + PR_SetError(PR_UNKNOWN_ERROR, 0); + return -1; + } + aix_poll_fcn = (int(*)())dlsym(aix_handle,"poll"); + dlclose(aix_handle); + if (!aix_poll_fcn) { + PR_SetError(PR_UNKNOWN_ERROR, 0); + return -1; + } + } + rv = (*aix_poll_fcn)(listptr, nfds, timeout); + return rv; +} + +#else + +/* + * In AIX versions prior to 4.2, we use the two-step rename/link trick. + * The binary must contain at least one "poll" symbol for linker's rename + * to work. So we must have this dummy function that references poll(). + */ +#include <sys/poll.h> +void _pr_aix_dummy() +{ + poll(0,0,0); +} + +#endif /* !defined(AIX_RENAME_SELECT) */ + +#ifdef _PR_HAVE_ATOMIC_CAS + +#include "pratom.h" + +#define _PR_AIX_ATOMIC_LOCK -1 + +PR_IMPLEMENT(void) +PR_StackPush(PRStack *stack, PRStackElem *stack_elem) +{ + PRStackElem *addr; + boolean_t locked = TRUE; + + /* Is it safe to cast a pointer to an int? */ + PR_ASSERT(sizeof(int) == sizeof(PRStackElem *)); + do { + while ((addr = stack->prstk_head.prstk_elem_next) == + (PRStackElem *)_PR_AIX_ATOMIC_LOCK) + ; + locked = _check_lock((atomic_p) &stack->prstk_head.prstk_elem_next, + (int) addr, _PR_AIX_ATOMIC_LOCK); + } while (locked == TRUE); + stack_elem->prstk_elem_next = addr; + _clear_lock((atomic_p)&stack->prstk_head.prstk_elem_next, (int)stack_elem); + return; +} + +PR_IMPLEMENT(PRStackElem *) +PR_StackPop(PRStack *stack) +{ + PRStackElem *element; + boolean_t locked = TRUE; + + /* Is it safe to cast a pointer to an int? */ + PR_ASSERT(sizeof(int) == sizeof(PRStackElem *)); + do { + while ((element = stack->prstk_head.prstk_elem_next) == + (PRStackElem *) _PR_AIX_ATOMIC_LOCK) + ; + locked = _check_lock((atomic_p) &stack->prstk_head.prstk_elem_next, + (int)element, _PR_AIX_ATOMIC_LOCK); + } while (locked == TRUE); + + if (element == NULL) { + _clear_lock((atomic_p) &stack->prstk_head.prstk_elem_next, NULL); + } else { + _clear_lock((atomic_p) &stack->prstk_head.prstk_elem_next, + (int) element->prstk_elem_next); + } + return element; +} + +#endif /* _PR_HAVE_ATOMIC_CAS */ diff --git a/nsprpub/pr/src/md/unix/aixwrap.c b/nsprpub/pr/src/md/unix/aixwrap.c new file mode 100644 index 0000000000..853825196b --- /dev/null +++ b/nsprpub/pr/src/md/unix/aixwrap.c @@ -0,0 +1,33 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +/* + * File: aixwrap.c + * Description: + * This file contains a single function, _MD_SELECT(), which simply + * invokes the select() function. This file is used in an ugly + * hack to override the system select() function on AIX releases + * prior to 4.2. (On AIX 4.2, we use a different mechanism to + * override select().) + */ + +#ifndef AIX_RENAME_SELECT +#error aixwrap.c should only be used on AIX 3.2 or 4.1 +#else + +#include <sys/select.h> +#include <sys/poll.h> + +int _MD_SELECT(int width, fd_set *r, fd_set *w, fd_set *e, struct timeval *t) +{ + return select(width, r, w, e, t); +} + +int _MD_POLL(void *listptr, unsigned long nfds, long timeout) +{ + return poll(listptr, nfds, timeout); +} + +#endif /* AIX_RENAME_SELECT */ diff --git a/nsprpub/pr/src/md/unix/bsdi.c b/nsprpub/pr/src/md/unix/bsdi.c new file mode 100644 index 0000000000..e625003f73 --- /dev/null +++ b/nsprpub/pr/src/md/unix/bsdi.c @@ -0,0 +1,87 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "primpl.h" + +#include <signal.h> + +void _MD_EarlyInit(void) +{ + /* + * Ignore FPE because coercion of a NaN to an int causes SIGFPE + * to be raised. + */ + struct sigaction act; + + act.sa_handler = SIG_IGN; + sigemptyset(&act.sa_mask); + act.sa_flags = SA_RESTART; + sigaction(SIGFPE, &act, 0); +} + +PRWord *_MD_HomeGCRegisters(PRThread *t, int isCurrent, int *np) +{ +#ifndef _PR_PTHREADS + if (isCurrent) { + (void) setjmp(CONTEXT(t)); + } + *np = sizeof(CONTEXT(t)) / sizeof(PRWord); + return (PRWord *) CONTEXT(t); +#else + *np = 0; + return NULL; +#endif +} + +#ifndef _PR_PTHREADS +void +_MD_SET_PRIORITY(_MDThread *thread, PRUintn newPri) +{ + return; +} + +PRStatus +_MD_InitializeThread(PRThread *thread) +{ + return PR_SUCCESS; +} + +PRStatus +_MD_WAIT(PRThread *thread, PRIntervalTime ticks) +{ + PR_ASSERT(!(thread->flags & _PR_GLOBAL_SCOPE)); + _PR_MD_SWITCH_CONTEXT(thread); + return PR_SUCCESS; +} + +PRStatus +_MD_WAKEUP_WAITER(PRThread *thread) +{ + if (thread) { + PR_ASSERT(!(thread->flags & _PR_GLOBAL_SCOPE)); + } + return PR_SUCCESS; +} + +/* These functions should not be called for BSDI */ +void +_MD_YIELD(void) +{ + PR_NOT_REACHED("_MD_YIELD should not be called for BSDI."); +} + +PRStatus +_MD_CREATE_THREAD( + PRThread *thread, + void (*start) (void *), + PRThreadPriority priority, + PRThreadScope scope, + PRThreadState state, + PRUint32 stackSize) +{ + PR_NOT_REACHED("_MD_CREATE_THREAD should not be called for BSDI."); + return PR_FAILURE; +} +#endif /* ! _PR_PTHREADS */ diff --git a/nsprpub/pr/src/md/unix/darwin.c b/nsprpub/pr/src/md/unix/darwin.c new file mode 100644 index 0000000000..6135e082ff --- /dev/null +++ b/nsprpub/pr/src/md/unix/darwin.c @@ -0,0 +1,113 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "primpl.h" + +#include <mach/mach_time.h> + +void _MD_EarlyInit(void) +{ +} + +/* + * The multiplier (as a fraction) for converting the Mach absolute time + * unit to nanoseconds. + */ +static mach_timebase_info_data_t machTimebaseInfo; + +void _PR_Mach_IntervalInit(void) +{ + kern_return_t rv; + + rv = mach_timebase_info(&machTimebaseInfo); + PR_ASSERT(rv == KERN_SUCCESS); +} + +PRIntervalTime _PR_Mach_GetInterval(void) +{ + uint64_t time; + + /* + * mach_absolute_time returns the time in the Mach absolute time unit. + * Convert it to milliseconds. See Mac Technical Q&A QA1398. + */ + time = mach_absolute_time(); + time = time * machTimebaseInfo.numer / machTimebaseInfo.denom / + PR_NSEC_PER_MSEC; + return (PRIntervalTime)time; +} /* _PR_Mach_GetInterval */ + +PRIntervalTime _PR_Mach_TicksPerSecond(void) +{ + return 1000; +} + +PRWord *_MD_HomeGCRegisters(PRThread *t, int isCurrent, int *np) +{ +#if !defined(_PR_PTHREADS) + if (isCurrent) { + (void) setjmp(CONTEXT(t)); + } + *np = sizeof(CONTEXT(t)) / sizeof(PRWord); + return (PRWord *) CONTEXT(t); +#else + *np = 0; + return NULL; +#endif +} + +#if !defined(_PR_PTHREADS) +void +_MD_SET_PRIORITY(_MDThread *thread, PRUintn newPri) +{ + return; +} + +PRStatus +_MD_InitializeThread(PRThread *thread) +{ + return PR_SUCCESS; +} + +PRStatus +_MD_WAIT(PRThread *thread, PRIntervalTime ticks) +{ + PR_ASSERT(!(thread->flags & _PR_GLOBAL_SCOPE)); + _PR_MD_SWITCH_CONTEXT(thread); + return PR_SUCCESS; +} + +PRStatus +_MD_WAKEUP_WAITER(PRThread *thread) +{ + if (thread) { + PR_ASSERT(!(thread->flags & _PR_GLOBAL_SCOPE)); + } + return PR_SUCCESS; +} + +/* These functions should not be called for Darwin */ +void +_MD_YIELD(void) +{ + PR_NOT_REACHED("_MD_YIELD should not be called for Darwin."); +} + +PRStatus +_MD_CREATE_THREAD( + PRThread *thread, + void (*start) (void *), + PRThreadPriority priority, + PRThreadScope scope, + PRThreadState state, + PRUint32 stackSize) +{ + PR_NOT_REACHED("_MD_CREATE_THREAD should not be called for Darwin."); + return PR_FAILURE; +} +#endif /* ! _PR_PTHREADS */ + +/* darwin.c */ + diff --git a/nsprpub/pr/src/md/unix/dgux.c b/nsprpub/pr/src/md/unix/dgux.c new file mode 100644 index 0000000000..a1b3602c5a --- /dev/null +++ b/nsprpub/pr/src/md/unix/dgux.c @@ -0,0 +1,77 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "primpl.h" + +/* + * using only NSPR threads here + * + * Copied from the UnixWare implementation. Should be kept in sync + * with ../../../include/md/_dgux.h. + */ + +#include <setjmp.h> + +void _MD_EarlyInit(void) +{ +} + +PRWord *_MD_HomeGCRegisters(PRThread *t, int isCurrent, int *np) +{ + if (isCurrent) { + (void) setjmp(CONTEXT(t)); + } + *np = sizeof(CONTEXT(t)) / sizeof(PRWord); + return (PRWord *) CONTEXT(t); +} + +void +_MD_SET_PRIORITY(_MDThread *thread, PRUintn newPri) +{ + return; +} + +PRStatus +_MD_InitializeThread(PRThread *thread) +{ + return PR_SUCCESS; +} + +PRStatus +_MD_WAIT(PRThread *thread, PRIntervalTime ticks) +{ + PR_ASSERT(!(thread->flags & _PR_GLOBAL_SCOPE)); + _PR_MD_SWITCH_CONTEXT(thread); + return PR_SUCCESS; +} + +PRStatus +_MD_WAKEUP_WAITER(PRThread *thread) +{ + if (thread) { + PR_ASSERT(!(thread->flags & _PR_GLOBAL_SCOPE)); + } + return PR_SUCCESS; +} + +/* These functions should not be called for DG/UX */ +void +_MD_YIELD(void) +{ + PR_NOT_REACHED("_MD_YIELD should not be called for DG/UX."); +} + +PRStatus +_MD_CREATE_THREAD( + PRThread *thread, + void (*start) (void *), + PRThreadPriority priority, + PRThreadScope scope, + PRThreadState state, + PRUint32 stackSize) +{ + PR_NOT_REACHED("_MD_CREATE_THREAD should not be called for DG/UX."); +} + diff --git a/nsprpub/pr/src/md/unix/freebsd.c b/nsprpub/pr/src/md/unix/freebsd.c new file mode 100644 index 0000000000..19af17a440 --- /dev/null +++ b/nsprpub/pr/src/md/unix/freebsd.c @@ -0,0 +1,87 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "primpl.h" + +#include <signal.h> + +void _MD_EarlyInit(void) +{ + /* + * Ignore FPE because coercion of a NaN to an int causes SIGFPE + * to be raised. + */ + struct sigaction act; + + act.sa_handler = SIG_IGN; + sigemptyset(&act.sa_mask); + act.sa_flags = SA_RESTART; + sigaction(SIGFPE, &act, 0); +} + +PRWord *_MD_HomeGCRegisters(PRThread *t, int isCurrent, int *np) +{ +#ifndef _PR_PTHREADS + if (isCurrent) { + (void) sigsetjmp(CONTEXT(t), 1); + } + *np = sizeof(CONTEXT(t)) / sizeof(PRWord); + return (PRWord *) CONTEXT(t); +#else + *np = 0; + return NULL; +#endif +} + +#ifndef _PR_PTHREADS +void +_MD_SET_PRIORITY(_MDThread *thread, PRUintn newPri) +{ + return; +} + +PRStatus +_MD_InitializeThread(PRThread *thread) +{ + return PR_SUCCESS; +} + +PRStatus +_MD_WAIT(PRThread *thread, PRIntervalTime ticks) +{ + PR_ASSERT(!(thread->flags & _PR_GLOBAL_SCOPE)); + _PR_MD_SWITCH_CONTEXT(thread); + return PR_SUCCESS; +} + +PRStatus +_MD_WAKEUP_WAITER(PRThread *thread) +{ + if (thread) { + PR_ASSERT(!(thread->flags & _PR_GLOBAL_SCOPE)); + } + return PR_SUCCESS; +} + +/* These functions should not be called for FreeBSD */ +void +_MD_YIELD(void) +{ + PR_NOT_REACHED("_MD_YIELD should not be called for FreeBSD."); +} + +PRStatus +_MD_CREATE_THREAD( + PRThread *thread, + void (*start) (void *), + PRThreadPriority priority, + PRThreadScope scope, + PRThreadState state, + PRUint32 stackSize) +{ + PR_NOT_REACHED("_MD_CREATE_THREAD should not be called for FreeBSD."); + return PR_FAILURE; +} +#endif /* ! _PR_PTHREADS */ diff --git a/nsprpub/pr/src/md/unix/hpux.c b/nsprpub/pr/src/md/unix/hpux.c new file mode 100644 index 0000000000..bf72567fd5 --- /dev/null +++ b/nsprpub/pr/src/md/unix/hpux.c @@ -0,0 +1,231 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "primpl.h" +#include <setjmp.h> + +#if defined(HPUX_LW_TIMER) + +#include <machine/inline.h> +#include <machine/clock.h> +#include <unistd.h> +#include <sys/time.h> +#include <sys/pstat.h> + +int __lw_get_thread_times(int which, int64_t *sample, int64_t *time); + +static double msecond_per_itick; + +void _PR_HPUX_LW_IntervalInit(void) +{ + struct pst_processor psp; + int iticksperclktick, clk_tck; + int rv; + + rv = pstat_getprocessor(&psp, sizeof(psp), 1, 0); + PR_ASSERT(rv != -1); + + iticksperclktick = psp.psp_iticksperclktick; + clk_tck = sysconf(_SC_CLK_TCK); + msecond_per_itick = (1000.0)/(double)(iticksperclktick * clk_tck); +} + +PRIntervalTime _PR_HPUX_LW_GetInterval(void) +{ + int64_t time, sample; + + __lw_get_thread_times(1, &sample, &time); + /* + * Division is slower than float multiplication. + * return (time / iticks_per_msecond); + */ + return (time * msecond_per_itick); +} +#endif /* HPUX_LW_TIMER */ + +#if !defined(PTHREADS_USER) + +void _MD_EarlyInit(void) +{ +#ifndef _PR_PTHREADS + /* + * The following piece of code is taken from ns/nspr/src/md_HP-UX.c. + * In the comment for revision 1.6, dated 1995/09/11 23:33:34, + * robm says: + * This version has some problems which need to be addressed. + * First, intercept all system calls and prevent them from + * executing the library code which performs stack switches + * before normal system call invocation. In order for library + * calls which make system calls to work (like stdio), however, + * we must also allocate our own stack and switch the primordial + * stack to use it. This isn't so bad, except that I fudged the + * backtrace length when copying the old stack to the new one. + * + * This is the original comment of robm in the code: + * XXXrobm Horrific. To avoid a problem with HP's system call + * code, we allocate a new stack for the primordial thread and + * use it. However, we don't know how far back the original stack + * goes. We should create a routine that performs a backtrace and + * finds out just how much we need to copy. As a temporary measure, + * I just copy an arbitrary guess. + * + * In an email to servereng dated 2 Jan 1997, Mike Patnode (mikep) + * suggests that this only needs to be done for HP-UX 9. + */ +#ifdef HPUX9 +#define PIDOOMA_STACK_SIZE 524288 +#define BACKTRACE_SIZE 8192 + { + jmp_buf jb; + char *newstack; + char *oldstack; + + if(!setjmp(jb)) { + newstack = (char *) PR_MALLOC(PIDOOMA_STACK_SIZE); + oldstack = (char *) (*(((int *) jb) + 1) - BACKTRACE_SIZE); + memcpy(newstack, oldstack, BACKTRACE_SIZE); + *(((int *) jb) + 1) = (int) (newstack + BACKTRACE_SIZE); + longjmp(jb, 1); + } + } +#endif /* HPUX9 */ +#endif /* !_PR_PTHREADS */ +} + +PRWord *_MD_HomeGCRegisters(PRThread *t, int isCurrent, int *np) +{ +#ifndef _PR_PTHREADS + if (isCurrent) { + (void) setjmp(CONTEXT(t)); + } + *np = sizeof(CONTEXT(t)) / sizeof(PRWord); + return (PRWord *) CONTEXT(t); +#else + *np = 0; + return NULL; +#endif +} + +#ifndef _PR_PTHREADS +void +_MD_SET_PRIORITY(_MDThread *thread, PRUintn newPri) +{ + return; +} + +PRStatus +_MD_InitializeThread(PRThread *thread) +{ + return PR_SUCCESS; +} + +PRStatus +_MD_WAIT(PRThread *thread, PRIntervalTime ticks) +{ + PR_ASSERT(!(thread->flags & _PR_GLOBAL_SCOPE)); + _PR_MD_SWITCH_CONTEXT(thread); + return PR_SUCCESS; +} + +PRStatus +_MD_WAKEUP_WAITER(PRThread *thread) +{ + if (thread) { + PR_ASSERT(!(thread->flags & _PR_GLOBAL_SCOPE)); + } + return PR_SUCCESS; +} + +/* These functions should not be called for HP-UX */ +void +_MD_YIELD(void) +{ + PR_NOT_REACHED("_MD_YIELD should not be called for HP-UX."); +} + +PRStatus +_MD_CREATE_THREAD( + PRThread *thread, + void (*start) (void *), + PRThreadPriority priority, + PRThreadScope scope, + PRThreadState state, + PRUint32 stackSize) +{ + PR_NOT_REACHED("_MD_CREATE_THREAD should not be called for HP-UX."); +} +#endif /* _PR_PTHREADS */ + +void +_MD_suspend_thread(PRThread *thread) +{ +#ifdef _PR_PTHREADS +#endif +} + +void +_MD_resume_thread(PRThread *thread) +{ +#ifdef _PR_PTHREADS +#endif +} +#endif /* PTHREADS_USER */ + +/* + * The HP version of strchr is buggy. It looks past the end of the + * string and causes a segmentation fault when our (NSPR) version + * of malloc is used. + * + * A better solution might be to put a cushion in our malloc just in + * case HP's version of strchr somehow gets used instead of this one. + */ +char * +strchr(const char *s, int c) +{ + char ch; + + if (!s) { + return NULL; + } + + ch = (char) c; + + while ((*s) && ((*s) != ch)) { + s++; + } + + if ((*s) == ch) { + return (char *) s; + } + + return NULL; +} + +/* + * Implemementation of memcmp in HP-UX (verified on releases A.09.03, + * A.09.07, and B.10.10) dumps core if called with: + * 1. First operand with address = 1(mod 4). + * 2. Size = 1(mod 4) + * 3. Last byte of the second operand is the last byte of the page and + * next page is not accessible(not mapped or protected) + * Thus, using the following naive version (tons of optimizations are + * possible;^) + */ + +int memcmp(const void *s1, const void *s2, size_t n) +{ + register unsigned char *p1 = (unsigned char *) s1, + *p2 = (unsigned char *) s2; + + while (n-- > 0) { + register int r = ((int) ((unsigned int) *p1)) + - ((int) ((unsigned int) *p2)); + if (r) { + return r; + } + p1++; p2++; + } + return 0; +} diff --git a/nsprpub/pr/src/md/unix/linux.c b/nsprpub/pr/src/md/unix/linux.c new file mode 100644 index 0000000000..6bfc7a8024 --- /dev/null +++ b/nsprpub/pr/src/md/unix/linux.c @@ -0,0 +1,91 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "primpl.h" + +void _MD_EarlyInit(void) +{ +} + +PRWord *_MD_HomeGCRegisters(PRThread *t, int isCurrent, int *np) +{ +#ifndef _PR_PTHREADS + if (isCurrent) { + (void) setjmp(CONTEXT(t)); + } + *np = sizeof(CONTEXT(t)) / sizeof(PRWord); + return (PRWord *) CONTEXT(t); +#else + *np = 0; + return NULL; +#endif +} + +#ifdef _PR_PTHREADS + +extern void _MD_unix_terminate_waitpid_daemon(void); + +void _MD_CleanupBeforeExit(void) +{ + _MD_unix_terminate_waitpid_daemon(); +} + +#else /* ! _PR_PTHREADS */ + +void +_MD_SET_PRIORITY(_MDThread *thread, PRUintn newPri) +{ + return; +} + +PRStatus +_MD_InitializeThread(PRThread *thread) +{ + /* + * set the pointers to the stack-pointer and frame-pointer words in the + * context structure; this is for debugging use. + */ + thread->md.sp = _MD_GET_SP_PTR(thread); + thread->md.fp = _MD_GET_FP_PTR(thread); + return PR_SUCCESS; +} + +PRStatus +_MD_WAIT(PRThread *thread, PRIntervalTime ticks) +{ + PR_ASSERT(!(thread->flags & _PR_GLOBAL_SCOPE)); + _PR_MD_SWITCH_CONTEXT(thread); + return PR_SUCCESS; +} + +PRStatus +_MD_WAKEUP_WAITER(PRThread *thread) +{ + if (thread) { + PR_ASSERT(!(thread->flags & _PR_GLOBAL_SCOPE)); + } + return PR_SUCCESS; +} + +/* These functions should not be called for Linux */ +void +_MD_YIELD(void) +{ + PR_NOT_REACHED("_MD_YIELD should not be called for Linux."); +} + +PRStatus +_MD_CREATE_THREAD( + PRThread *thread, + void (*start) (void *), + PRThreadPriority priority, + PRThreadScope scope, + PRThreadState state, + PRUint32 stackSize) +{ + PR_NOT_REACHED("_MD_CREATE_THREAD should not be called for Linux."); + return PR_FAILURE; +} +#endif /* ! _PR_PTHREADS */ diff --git a/nsprpub/pr/src/md/unix/netbsd.c b/nsprpub/pr/src/md/unix/netbsd.c new file mode 100644 index 0000000000..aa3618a31a --- /dev/null +++ b/nsprpub/pr/src/md/unix/netbsd.c @@ -0,0 +1,89 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "primpl.h" + +#include <signal.h> +#include <poll.h> +#include <sys/syscall.h> + +void _MD_EarlyInit(void) +{ + /* + * Ignore FPE because coercion of a NaN to an int causes SIGFPE + * to be raised. + */ + struct sigaction act; + + act.sa_handler = SIG_IGN; + sigemptyset(&act.sa_mask); + act.sa_flags = SA_RESTART; + sigaction(SIGFPE, &act, 0); +} + +PRWord *_MD_HomeGCRegisters(PRThread *t, int isCurrent, int *np) +{ +#ifndef _PR_PTHREADS + if (isCurrent) { + (void) sigsetjmp(CONTEXT(t), 1); + } + *np = sizeof(CONTEXT(t)) / sizeof(PRWord); + return (PRWord *) CONTEXT(t); +#else + *np = 0; + return NULL; +#endif +} + +#ifndef _PR_PTHREADS +void +_MD_SET_PRIORITY(_MDThread *thread, PRUintn newPri) +{ + return; +} + +PRStatus +_MD_InitializeThread(PRThread *thread) +{ + return PR_SUCCESS; +} + +PRStatus +_MD_WAIT(PRThread *thread, PRIntervalTime ticks) +{ + PR_ASSERT(!(thread->flags & _PR_GLOBAL_SCOPE)); + _PR_MD_SWITCH_CONTEXT(thread); + return PR_SUCCESS; +} + +PRStatus +_MD_WAKEUP_WAITER(PRThread *thread) +{ + if (thread) { + PR_ASSERT(!(thread->flags & _PR_GLOBAL_SCOPE)); + } + return PR_SUCCESS; +} + +/* These functions should not be called for NetBSD */ +void +_MD_YIELD(void) +{ + PR_NOT_REACHED("_MD_YIELD should not be called for NetBSD."); +} + +PRStatus +_MD_CREATE_THREAD( + PRThread *thread, + void (*start) (void *), + PRThreadPriority priority, + PRThreadScope scope, + PRThreadState state, + PRUint32 stackSize) +{ + PR_NOT_REACHED("_MD_CREATE_THREAD should not be called for NetBSD."); + return PR_FAILURE; +} +#endif /* ! _PR_PTHREADS */ diff --git a/nsprpub/pr/src/md/unix/nto.c b/nsprpub/pr/src/md/unix/nto.c new file mode 100644 index 0000000000..8ab8b1eab8 --- /dev/null +++ b/nsprpub/pr/src/md/unix/nto.c @@ -0,0 +1,34 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "primpl.h" + +#include <setjmp.h> + +/* Fake this out */ +int socketpair (int foo, int foo2, int foo3, int sv[2]) +{ + printf("error in socketpair\n"); + exit (-1); +} + +void _MD_EarlyInit(void) +{ +} + +PRWord *_MD_HomeGCRegisters(PRThread *t, int isCurrent, int *np) +{ +#ifndef _PR_PTHREADS + if (isCurrent) { + (void) setjmp(CONTEXT(t)); + } + + *np = sizeof(CONTEXT(t)) / sizeof(PRWord); + return (PRWord *) CONTEXT(t); +#else + *np = 0; + return NULL; +#endif +} diff --git a/nsprpub/pr/src/md/unix/objs.mk b/nsprpub/pr/src/md/unix/objs.mk new file mode 100644 index 0000000000..77eaa6d13b --- /dev/null +++ b/nsprpub/pr/src/md/unix/objs.mk @@ -0,0 +1,31 @@ +# +# This Source Code Form is subject to the terms of the Mozilla Public +# License, v. 2.0. If a copy of the MPL was not distributed with this +# file, You can obtain one at http://mozilla.org/MPL/2.0/. + +# This makefile appends to the variable OBJS the platform-dependent +# object modules that will be part of the nspr20 library. + +CSRCS = \ + unix.c \ + unix_errors.c \ + uxproces.c \ + uxrng.c \ + uxshm.c \ + uxwrap.c \ + $(NULL) + +ifneq ($(USE_PTHREADS),1) +CSRCS += uxpoll.c +endif + +ifeq ($(PTHREADS_USER),1) +CSRCS += pthreads_user.c +endif + +CSRCS += $(PR_MD_CSRCS) +ASFILES += $(PR_MD_ASFILES) + +OBJS += $(addprefix md/unix/$(OBJDIR)/,$(CSRCS:.c=.$(OBJ_SUFFIX))) \ + $(addprefix md/unix/$(OBJDIR)/,$(ASFILES:.s=.$(OBJ_SUFFIX))) + diff --git a/nsprpub/pr/src/md/unix/openbsd.c b/nsprpub/pr/src/md/unix/openbsd.c new file mode 100644 index 0000000000..b7f0a29954 --- /dev/null +++ b/nsprpub/pr/src/md/unix/openbsd.c @@ -0,0 +1,89 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "primpl.h" + +#include <signal.h> +#include <poll.h> +#include <sys/syscall.h> + +void _MD_EarlyInit(void) +{ + /* + * Ignore FPE because coercion of a NaN to an int causes SIGFPE + * to be raised. + */ + struct sigaction act; + + act.sa_handler = SIG_IGN; + sigemptyset(&act.sa_mask); + act.sa_flags = SA_RESTART; + sigaction(SIGFPE, &act, 0); +} + +PRWord *_MD_HomeGCRegisters(PRThread *t, int isCurrent, int *np) +{ +#ifndef _PR_PTHREADS + if (isCurrent) { + (void) sigsetjmp(CONTEXT(t), 1); + } + *np = sizeof(CONTEXT(t)) / sizeof(PRWord); + return (PRWord *) CONTEXT(t); +#else + *np = 0; + return NULL; +#endif +} + +#ifndef _PR_PTHREADS +void +_MD_SET_PRIORITY(_MDThread *thread, PRUintn newPri) +{ + return; +} + +PRStatus +_MD_InitializeThread(PRThread *thread) +{ + return PR_SUCCESS; +} + +PRStatus +_MD_WAIT(PRThread *thread, PRIntervalTime ticks) +{ + PR_ASSERT(!(thread->flags & _PR_GLOBAL_SCOPE)); + _PR_MD_SWITCH_CONTEXT(thread); + return PR_SUCCESS; +} + +PRStatus +_MD_WAKEUP_WAITER(PRThread *thread) +{ + if (thread) { + PR_ASSERT(!(thread->flags & _PR_GLOBAL_SCOPE)); + } + return PR_SUCCESS; +} + +/* These functions should not be called for OpenBSD */ +void +_MD_YIELD(void) +{ + PR_NOT_REACHED("_MD_YIELD should not be called for OpenBSD."); +} + +PRStatus +_MD_CREATE_THREAD( + PRThread *thread, + void (*start) (void *), + PRThreadPriority priority, + PRThreadScope scope, + PRThreadState state, + PRUint32 stackSize) +{ + PR_NOT_REACHED("_MD_CREATE_THREAD should not be called for OpenBSD."); + return PR_FAILURE; +} +#endif /* ! _PR_PTHREADS */ diff --git a/nsprpub/pr/src/md/unix/os_AIX.s b/nsprpub/pr/src/md/unix/os_AIX.s new file mode 100644 index 0000000000..0227cc47f8 --- /dev/null +++ b/nsprpub/pr/src/md/unix/os_AIX.s @@ -0,0 +1,91 @@ +# -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- +# +# This Source Code Form is subject to the terms of the Mozilla Public +# License, v. 2.0. If a copy of the MPL was not distributed with this +# file, You can obtain one at http://mozilla.org/MPL/2.0/. + +.set r0,0; .set SP,1; .set RTOC,2; .set r3,3; .set r4,4 +.set r5,5; .set r6,6; .set r7,7; .set r8,8; .set r9,9 +.set r10,10; .set r11,11; .set r12,12; .set r13,13; .set r14,14 +.set r15,15; .set r16,16; .set r17,17; .set r18,18; .set r19,19 +.set r20,20; .set r21,21; .set r22,22; .set r23,23; .set r24,24 +.set r25,25; .set r26,26; .set r27,27; .set r28,28; .set r29,29 +.set r30,30; .set r31,31 + + + .rename H.10.NO_SYMBOL{PR},"" + .rename H.18.longjmp{TC},"longjmp" + + .lglobl H.10.NO_SYMBOL{PR} + .globl .longjmp + .globl longjmp{DS} + .extern .sigcleanup + .extern .jmprestfpr + +# .text section + + .csect H.10.NO_SYMBOL{PR} +.longjmp: + mr r13,r3 + mr r14,r4 + stu SP,-56(SP) + bl .sigcleanup + l RTOC,0x14(SP) + cal SP,0x38(SP) + mr r3,r13 + mr r4,r14 + l r5,0x8(r3) + l SP,0xc(r3) + l r7,0xf8(r3) + st r7,0x0(SP) + l RTOC,0x10(r3) + bl .jmprestfpr +# 1 == cr0 in disassembly + cmpi 1,r4,0x0 + mtlr r5 + lm r13,0x14(r3) + l r5,0x60(r3) + mtcrf 0x38,r5 + mr r3,r4 + bne __L1 + lil r3,0x1 +__L1: + br + +# traceback table + .long 0x00000000 + .byte 0x00 # VERSION=0 + .byte 0x00 # LANG=TB_C + .byte 0x20 # IS_GL=0,IS_EPROL=0,HAS_TBOFF=1 + # INT_PROC=0,HAS_CTL=0,TOCLESS=0 + # FP_PRESENT=0,LOG_ABORT=0 + .byte 0x40 # INT_HNDL=0,NAME_PRESENT=1 + # USES_ALLOCA=0,CL_DIS_INV=WALK_ONCOND + # SAVES_CR=0,SAVES_LR=0 + .byte 0x80 # STORES_BC=1,FPR_SAVED=0 + .byte 0x00 # GPR_SAVED=0 + .byte 0x02 # FIXEDPARMS=2 + .byte 0x01 # FLOATPARMS=0,PARMSONSTK=1 + .long 0x00000000 # + .long 0x00000014 # TB_OFFSET + .short 7 # NAME_LEN + .byte "longjmp" + .byte 0 # padding + .byte 0 # padding + .byte 0 # padding +# End of traceback table + .long 0x00000000 # "\0\0\0\0" + +# .data section + + .toc # 0x00000038 +T.18.longjmp: + .tc H.18.longjmp{TC},longjmp{DS} + + .csect longjmp{DS} + .long .longjmp # "\0\0\0\0" + .long TOC{TC0} # "\0\0\0008" + .long 0x00000000 # "\0\0\0\0" +# End csect longjmp{DS} + +# .bss section diff --git a/nsprpub/pr/src/md/unix/os_BSD_386_2.s b/nsprpub/pr/src/md/unix/os_BSD_386_2.s new file mode 100644 index 0000000000..fa36599e73 --- /dev/null +++ b/nsprpub/pr/src/md/unix/os_BSD_386_2.s @@ -0,0 +1,42 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +/* + * os_BSD_386_2.s + * We need to define our own setjmp/longjmp on BSDI 2.x because libc's + * implementation does some sanity checking that defeats user level threads. + * This should no longer be necessary in BSDI 3.0. + */ + +.globl _setjmp +.align 2 +_setjmp: + movl 4(%esp),%eax + movl 0(%esp),%edx + movl %edx, 0(%eax) /* rta */ + movl %ebx, 4(%eax) + movl %esp, 8(%eax) + movl %ebp,12(%eax) + movl %esi,16(%eax) + movl %edi,20(%eax) + movl $0,%eax + ret + +.globl _longjmp +.align 2 +_longjmp: + movl 4(%esp),%edx + movl 8(%esp),%eax + movl 0(%edx),%ecx + movl 4(%edx),%ebx + movl 8(%edx),%esp + movl 12(%edx),%ebp + movl 16(%edx),%esi + movl 20(%edx),%edi + cmpl $0,%eax + jne 1f + movl $1,%eax +1: movl %ecx,0(%esp) + ret diff --git a/nsprpub/pr/src/md/unix/os_Darwin.s b/nsprpub/pr/src/md/unix/os_Darwin.s new file mode 100644 index 0000000000..26a0b9226e --- /dev/null +++ b/nsprpub/pr/src/md/unix/os_Darwin.s @@ -0,0 +1,13 @@ +# -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- +# +# This Source Code Form is subject to the terms of the Mozilla Public +# License, v. 2.0. If a copy of the MPL was not distributed with this +# file, You can obtain one at http://mozilla.org/MPL/2.0/. + +#ifdef __i386__ +#include "os_Darwin_x86.s" +#elif defined(__x86_64__) +#include "os_Darwin_x86_64.s" +#elif defined(__ppc__) +#include "os_Darwin_ppc.s" +#endif diff --git a/nsprpub/pr/src/md/unix/os_Darwin_ppc.s b/nsprpub/pr/src/md/unix/os_Darwin_ppc.s new file mode 100644 index 0000000000..8479dec01f --- /dev/null +++ b/nsprpub/pr/src/md/unix/os_Darwin_ppc.s @@ -0,0 +1,68 @@ +# -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- +# +# This Source Code Form is subject to the terms of the Mozilla Public +# License, v. 2.0. If a copy of the MPL was not distributed with this +# file, You can obtain one at http://mozilla.org/MPL/2.0/. + +# +# Based on the programming examples in The PowerPC Architecture: +# A Specification for A New Family of RISC Processors, 2nd Ed., +# Book I, Section E.1, "Synchronization," pp. 249-256, May 1994. +# + +.text + +# +# PRInt32 __PR_DarwinPPC_AtomicIncrement(PRInt32 *val); +# + .align 2 + .globl __PR_DarwinPPC_AtomicIncrement + .private_extern __PR_DarwinPPC_AtomicIncrement +__PR_DarwinPPC_AtomicIncrement: + lwarx r4,0,r3 + addi r0,r4,1 + stwcx. r0,0,r3 + bne- __PR_DarwinPPC_AtomicIncrement + mr r3,r0 + blr + +# +# PRInt32 __PR_DarwinPPC_AtomicDecrement(PRInt32 *val); +# + .align 2 + .globl __PR_DarwinPPC_AtomicDecrement + .private_extern __PR_DarwinPPC_AtomicDecrement +__PR_DarwinPPC_AtomicDecrement: + lwarx r4,0,r3 + addi r0,r4,-1 + stwcx. r0,0,r3 + bne- __PR_DarwinPPC_AtomicDecrement + mr r3,r0 + blr + +# +# PRInt32 __PR_DarwinPPC_AtomicSet(PRInt32 *val, PRInt32 newval); +# + .align 2 + .globl __PR_DarwinPPC_AtomicSet + .private_extern __PR_DarwinPPC_AtomicSet +__PR_DarwinPPC_AtomicSet: + lwarx r5,0,r3 + stwcx. r4,0,r3 + bne- __PR_DarwinPPC_AtomicSet + mr r3,r5 + blr + +# +# PRInt32 __PR_DarwinPPC_AtomicAdd(PRInt32 *ptr, PRInt32 val); +# + .align 2 + .globl __PR_DarwinPPC_AtomicAdd + .private_extern __PR_DarwinPPC_AtomicAdd +__PR_DarwinPPC_AtomicAdd: + lwarx r5,0,r3 + add r0,r4,r5 + stwcx. r0,0,r3 + bne- __PR_DarwinPPC_AtomicAdd + mr r3,r0 + blr diff --git a/nsprpub/pr/src/md/unix/os_Darwin_x86.s b/nsprpub/pr/src/md/unix/os_Darwin_x86.s new file mode 100644 index 0000000000..fc6379f952 --- /dev/null +++ b/nsprpub/pr/src/md/unix/os_Darwin_x86.s @@ -0,0 +1,80 @@ +# -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- +# +# This Source Code Form is subject to the terms of the Mozilla Public +# License, v. 2.0. If a copy of the MPL was not distributed with this +# file, You can obtain one at http://mozilla.org/MPL/2.0/. + +# +# Based on os_Linux_x86.s +# + +# +# PRInt32 __PR_Darwin_x86_AtomicIncrement(PRInt32 *val); +# +# Atomically increment the integer pointed to by 'val' and return +# the result of the increment. +# + .text + .globl __PR_Darwin_x86_AtomicIncrement + .private_extern __PR_Darwin_x86_AtomicIncrement + .align 4 +__PR_Darwin_x86_AtomicIncrement: + movl 4(%esp), %ecx + movl $1, %eax + lock + xaddl %eax, (%ecx) + incl %eax + ret + +# +# PRInt32 __PR_Darwin_x86_AtomicDecrement(PRInt32 *val); +# +# Atomically decrement the integer pointed to by 'val' and return +# the result of the decrement. +# + .text + .globl __PR_Darwin_x86_AtomicDecrement + .private_extern __PR_Darwin_x86_AtomicDecrement + .align 4 +__PR_Darwin_x86_AtomicDecrement: + movl 4(%esp), %ecx + movl $-1, %eax + lock + xaddl %eax, (%ecx) + decl %eax + ret + +# +# PRInt32 __PR_Darwin_x86_AtomicSet(PRInt32 *val, PRInt32 newval); +# +# Atomically set the integer pointed to by 'val' to the new +# value 'newval' and return the old value. +# + .text + .globl __PR_Darwin_x86_AtomicSet + .private_extern __PR_Darwin_x86_AtomicSet + .align 4 +__PR_Darwin_x86_AtomicSet: + movl 4(%esp), %ecx + movl 8(%esp), %eax + xchgl %eax, (%ecx) + ret + +# +# PRInt32 __PR_Darwin_x86_AtomicAdd(PRInt32 *ptr, PRInt32 val); +# +# Atomically add 'val' to the integer pointed to by 'ptr' +# and return the result of the addition. +# + .text + .globl __PR_Darwin_x86_AtomicAdd + .private_extern __PR_Darwin_x86_AtomicAdd + .align 4 +__PR_Darwin_x86_AtomicAdd: + movl 4(%esp), %ecx + movl 8(%esp), %eax + movl %eax, %edx + lock + xaddl %eax, (%ecx) + addl %edx, %eax + ret diff --git a/nsprpub/pr/src/md/unix/os_Darwin_x86_64.s b/nsprpub/pr/src/md/unix/os_Darwin_x86_64.s new file mode 100644 index 0000000000..449aaa5db6 --- /dev/null +++ b/nsprpub/pr/src/md/unix/os_Darwin_x86_64.s @@ -0,0 +1,67 @@ +# -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- +# +# This Source Code Form is subject to the terms of the Mozilla Public +# License, v. 2.0. If a copy of the MPL was not distributed with this +# file, You can obtain one at http://mozilla.org/MPL/2.0/. + +# PRInt32 __PR_Darwin_x86_64_AtomicIncrement(PRInt32 *val) +# +# Atomically increment the integer pointed to by 'val' and return +# the result of the increment. +# + .text + .globl __PR_Darwin_x86_64_AtomicIncrement + .private_extern __PR_Darwin_x86_64_AtomicIncrement + .align 4 +__PR_Darwin_x86_64_AtomicIncrement: + movl $1, %eax + lock + xaddl %eax, (%rdi) + incl %eax + ret + +# PRInt32 __PR_Darwin_x86_64_AtomicDecrement(PRInt32 *val) +# +# Atomically decrement the integer pointed to by 'val' and return +# the result of the decrement. +# + .text + .globl __PR_Darwin_x86_64_AtomicDecrement + .private_extern __PR_Darwin_x86_64_AtomicDecrement + .align 4 +__PR_Darwin_x86_64_AtomicDecrement: + movl $-1, %eax + lock + xaddl %eax, (%rdi) + decl %eax + ret + +# PRInt32 __PR_Darwin_x86_64_AtomicSet(PRInt32 *val, PRInt32 newval) +# +# Atomically set the integer pointed to by 'val' to the new +# value 'newval' and return the old value. +# + .text + .globl __PR_Darwin_x86_64_AtomicSet + .private_extern __PR_Darwin_x86_64_AtomicSet + .align 4 +__PR_Darwin_x86_64_AtomicSet: + movl %esi, %eax + xchgl %eax, (%rdi) + ret + +# PRInt32 __PR_Darwin_x86_64_AtomicAdd(PRInt32 *ptr, PRInt32 val) +# +# Atomically add 'val' to the integer pointed to by 'ptr' +# and return the result of the addition. +# + .text + .globl __PR_Darwin_x86_64_AtomicAdd + .private_extern __PR_Darwin_x86_64_AtomicAdd + .align 4 +__PR_Darwin_x86_64_AtomicAdd: + movl %esi, %eax + lock + xaddl %eax, (%rdi) + addl %esi, %eax + ret diff --git a/nsprpub/pr/src/md/unix/os_HPUX.s b/nsprpub/pr/src/md/unix/os_HPUX.s new file mode 100644 index 0000000000..f8ecabf9b0 --- /dev/null +++ b/nsprpub/pr/src/md/unix/os_HPUX.s @@ -0,0 +1,25 @@ +; +; This Source Code Form is subject to the terms of the Mozilla Public +; License, v. 2.0. If a copy of the MPL was not distributed with this +; file, You can obtain one at http://mozilla.org/MPL/2.0/. + +#ifdef __LP64__ + .LEVEL 2.0W +#else + .LEVEL 1.1 +#endif + + .CODE ; equivalent to the following two lines +; .SPACE $TEXT$,SORT=8 +; .SUBSPA $CODE$,QUAD=0,ALIGN=4,ACCESS=0x2c,CODE_ONLY,SORT=24 + +ret_cr16 + .PROC + .CALLINFO FRAME=0, NO_CALLS + .EXPORT ret_cr16,ENTRY + .ENTRY + BV %r0(%rp) + .EXIT + MFCTL %cr16,%ret0 + .PROCEND + .END diff --git a/nsprpub/pr/src/md/unix/os_HPUX_ia64.s b/nsprpub/pr/src/md/unix/os_HPUX_ia64.s new file mode 100644 index 0000000000..302ae7687d --- /dev/null +++ b/nsprpub/pr/src/md/unix/os_HPUX_ia64.s @@ -0,0 +1,80 @@ +// -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- +// +// This Source Code Form is subject to the terms of the Mozilla Public +// License, v. 2.0. If a copy of the MPL was not distributed with this +// file, You can obtain one at http://mozilla.org/MPL/2.0/. + +.text + +// PRInt32 _PR_ia64_AtomicIncrement(PRInt32 *val) +// +// Atomically increment the integer pointed to by 'val' and return +// the result of the increment. +// + .align 16 + .global _PR_ia64_AtomicIncrement# + .proc _PR_ia64_AtomicIncrement# +_PR_ia64_AtomicIncrement: +#ifndef _LP64 + addp4 r32 = 0, r32 ;; +#endif + fetchadd4.acq r8 = [r32], 1 ;; + adds r8 = 1, r8 + br.ret.sptk.many b0 + .endp _PR_ia64_AtomicIncrement# + +// PRInt32 _PR_ia64_AtomicDecrement(PRInt32 *val) +// +// Atomically decrement the integer pointed to by 'val' and return +// the result of the decrement. +// + .align 16 + .global _PR_ia64_AtomicDecrement# + .proc _PR_ia64_AtomicDecrement# +_PR_ia64_AtomicDecrement: +#ifndef _LP64 + addp4 r32 = 0, r32 ;; +#endif + fetchadd4.rel r8 = [r32], -1 ;; + adds r8 = -1, r8 + br.ret.sptk.many b0 + .endp _PR_ia64_AtomicDecrement# + +// PRInt32 _PR_ia64_AtomicAdd(PRInt32 *ptr, PRInt32 val) +// +// Atomically add 'val' to the integer pointed to by 'ptr' +// and return the result of the addition. +// + .align 16 + .global _PR_ia64_AtomicAdd# + .proc _PR_ia64_AtomicAdd# +_PR_ia64_AtomicAdd: +#ifndef _LP64 + addp4 r32 = 0, r32 ;; +#endif + ld4 r15 = [r32] ;; +.L3: + mov r14 = r15 + mov ar.ccv = r15 + add r8 = r15, r33 ;; + cmpxchg4.acq r15 = [r32], r8, ar.ccv ;; + cmp4.ne p6, p7 = r15, r14 + (p6) br.cond.dptk .L3 + br.ret.sptk.many b0 + .endp _PR_ia64_AtomicAdd# + +// PRInt32 _PR_ia64_AtomicSet(PRInt32 *val, PRInt32 newval) +// +// Atomically set the integer pointed to by 'val' to the new +// value 'newval' and return the old value. +// + .align 16 + .global _PR_ia64_AtomicSet# + .proc _PR_ia64_AtomicSet# +_PR_ia64_AtomicSet: +#ifndef _LP64 + addp4 r32 = 0, r32 ;; +#endif + xchg4 r8 = [r32], r33 + br.ret.sptk.many b0 + .endp _PR_ia64_AtomicSet# diff --git a/nsprpub/pr/src/md/unix/os_Linux_ia64.s b/nsprpub/pr/src/md/unix/os_Linux_ia64.s new file mode 100644 index 0000000000..39b724ae47 --- /dev/null +++ b/nsprpub/pr/src/md/unix/os_Linux_ia64.s @@ -0,0 +1,71 @@ +// -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- +// +// This Source Code Form is subject to the terms of the Mozilla Public +// License, v. 2.0. If a copy of the MPL was not distributed with this +// file, You can obtain one at http://mozilla.org/MPL/2.0/. + +.text + +// PRInt32 _PR_ia64_AtomicIncrement(PRInt32 *val) +// +// Atomically increment the integer pointed to by 'val' and return +// the result of the increment. +// + .align 16 + .global _PR_ia64_AtomicIncrement# + .proc _PR_ia64_AtomicIncrement# +_PR_ia64_AtomicIncrement: + fetchadd4.acq r8 = [r32], 1 ;; + adds r8 = 1, r8 + br.ret.sptk.many b0 + .endp _PR_ia64_AtomicIncrement# + +// PRInt32 _PR_ia64_AtomicDecrement(PRInt32 *val) +// +// Atomically decrement the integer pointed to by 'val' and return +// the result of the decrement. +// + .align 16 + .global _PR_ia64_AtomicDecrement# + .proc _PR_ia64_AtomicDecrement# +_PR_ia64_AtomicDecrement: + fetchadd4.rel r8 = [r32], -1 ;; + adds r8 = -1, r8 + br.ret.sptk.many b0 + .endp _PR_ia64_AtomicDecrement# + +// PRInt32 _PR_ia64_AtomicAdd(PRInt32 *ptr, PRInt32 val) +// +// Atomically add 'val' to the integer pointed to by 'ptr' +// and return the result of the addition. +// + .align 16 + .global _PR_ia64_AtomicAdd# + .proc _PR_ia64_AtomicAdd# +_PR_ia64_AtomicAdd: + ld4 r15 = [r32] ;; +.L3: + mov r14 = r15 + mov ar.ccv = r15 + add r8 = r15, r33 ;; + cmpxchg4.acq r15 = [r32], r8, ar.ccv ;; + cmp4.ne p6, p7 = r15, r14 + (p6) br.cond.dptk .L3 + br.ret.sptk.many b0 + .endp _PR_ia64_AtomicAdd# + +// PRInt32 _PR_ia64_AtomicSet(PRInt32 *val, PRInt32 newval) +// +// Atomically set the integer pointed to by 'val' to the new +// value 'newval' and return the old value. +// + .align 16 + .global _PR_ia64_AtomicSet# + .proc _PR_ia64_AtomicSet# +_PR_ia64_AtomicSet: + xchg4 r8 = [r32], r33 + br.ret.sptk.many b0 + .endp _PR_ia64_AtomicSet# + +// Magic indicating no need for an executable stack +.section .note.GNU-stack, "", @progbits diff --git a/nsprpub/pr/src/md/unix/os_Linux_ppc.s b/nsprpub/pr/src/md/unix/os_Linux_ppc.s new file mode 100644 index 0000000000..76da33bffc --- /dev/null +++ b/nsprpub/pr/src/md/unix/os_Linux_ppc.s @@ -0,0 +1,75 @@ +# -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- +# +# This Source Code Form is subject to the terms of the Mozilla Public +# License, v. 2.0. If a copy of the MPL was not distributed with this +# file, You can obtain one at http://mozilla.org/MPL/2.0/. + +# +# Based on the programming examples in The PowerPC Architecture: +# A Specification for A New Family of RISC Processors, 2nd Ed., +# Book I, Section E.1, "Synchronization," pp. 249-256, May 1994. +# + + .section ".text" + +# +# PRInt32 _PR_ppc_AtomicIncrement(PRInt32 *val); +# + .align 2 + .globl _PR_ppc_AtomicIncrement + .type _PR_ppc_AtomicIncrement,@function +_PR_ppc_AtomicIncrement: +.Lfd1: lwarx 4,0,3 + addi 0,4,1 + stwcx. 0,0,3 + bne- .Lfd1 + mr 3,0 + blr +.Lfe1: .size _PR_ppc_AtomicIncrement,.Lfe1-_PR_ppc_AtomicIncrement + +# +# PRInt32 _PR_ppc_AtomicDecrement(PRInt32 *val); +# + .align 2 + .globl _PR_ppc_AtomicDecrement + .type _PR_ppc_AtomicDecrement,@function +_PR_ppc_AtomicDecrement: +.Lfd2: lwarx 4,0,3 + addi 0,4,-1 + stwcx. 0,0,3 + bne- .Lfd2 + mr 3,0 + blr +.Lfe2: .size _PR_ppc_AtomicDecrement,.Lfe2-_PR_ppc_AtomicDecrement + +# +# PRInt32 _PR_ppc_AtomicSet(PRInt32 *val, PRInt32 newval); +# + .align 2 + .globl _PR_ppc_AtomicSet + .type _PR_ppc_AtomicSet,@function +_PR_ppc_AtomicSet: +.Lfd3: lwarx 5,0,3 + stwcx. 4,0,3 + bne- .Lfd3 + mr 3,5 + blr +.Lfe3: .size _PR_ppc_AtomicSet,.Lfe3-_PR_ppc_AtomicSet + +# +# PRInt32 _PR_ppc_AtomicAdd(PRInt32 *ptr, PRInt32 val); +# + .align 2 + .globl _PR_ppc_AtomicAdd + .type _PR_ppc_AtomicAdd,@function +_PR_ppc_AtomicAdd: +.Lfd4: lwarx 5,0,3 + add 0,4,5 + stwcx. 0,0,3 + bne- .Lfd4 + mr 3,0 + blr +.Lfe4: .size _PR_ppc_AtomicAdd,.Lfe4-_PR_ppc_AtomicAdd + +# Magic indicating no need for an executable stack +.section .note.GNU-stack, "", @progbits diff --git a/nsprpub/pr/src/md/unix/os_Linux_x86.s b/nsprpub/pr/src/md/unix/os_Linux_x86.s new file mode 100644 index 0000000000..83e10b4552 --- /dev/null +++ b/nsprpub/pr/src/md/unix/os_Linux_x86.s @@ -0,0 +1,85 @@ +// -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- +// +// This Source Code Form is subject to the terms of the Mozilla Public +// License, v. 2.0. If a copy of the MPL was not distributed with this +// file, You can obtain one at http://mozilla.org/MPL/2.0/. + +// PRInt32 _PR_x86_AtomicIncrement(PRInt32 *val) +// +// Atomically increment the integer pointed to by 'val' and return +// the result of the increment. +// + .text + .globl _PR_x86_AtomicIncrement + .align 4 +_PR_x86_AtomicIncrement: + movl 4(%esp), %ecx + movl $1, %eax + lock + xaddl %eax, (%ecx) + incl %eax + ret + +// PRInt32 _PR_x86_AtomicDecrement(PRInt32 *val) +// +// Atomically decrement the integer pointed to by 'val' and return +// the result of the decrement. +// + .text + .globl _PR_x86_AtomicDecrement + .align 4 +_PR_x86_AtomicDecrement: + movl 4(%esp), %ecx + movl $-1, %eax + lock + xaddl %eax, (%ecx) + decl %eax + ret + +// PRInt32 _PR_x86_AtomicSet(PRInt32 *val, PRInt32 newval) +// +// Atomically set the integer pointed to by 'val' to the new +// value 'newval' and return the old value. +// +// An alternative implementation: +// .text +// .globl _PR_x86_AtomicSet +// .align 4 +//_PR_x86_AtomicSet: +// movl 4(%esp), %ecx +// movl 8(%esp), %edx +// movl (%ecx), %eax +//retry: +// lock +// cmpxchgl %edx, (%ecx) +// jne retry +// ret +// + .text + .globl _PR_x86_AtomicSet + .align 4 +_PR_x86_AtomicSet: + movl 4(%esp), %ecx + movl 8(%esp), %eax + xchgl %eax, (%ecx) + ret + +// PRInt32 _PR_x86_AtomicAdd(PRInt32 *ptr, PRInt32 val) +// +// Atomically add 'val' to the integer pointed to by 'ptr' +// and return the result of the addition. +// + .text + .globl _PR_x86_AtomicAdd + .align 4 +_PR_x86_AtomicAdd: + movl 4(%esp), %ecx + movl 8(%esp), %eax + movl %eax, %edx + lock + xaddl %eax, (%ecx) + addl %edx, %eax + ret + +// Magic indicating no need for an executable stack +.section .note.GNU-stack, "", @progbits diff --git a/nsprpub/pr/src/md/unix/os_Linux_x86_64.s b/nsprpub/pr/src/md/unix/os_Linux_x86_64.s new file mode 100644 index 0000000000..f30e75d538 --- /dev/null +++ b/nsprpub/pr/src/md/unix/os_Linux_x86_64.s @@ -0,0 +1,74 @@ +// -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- +// +// This Source Code Form is subject to the terms of the Mozilla Public +// License, v. 2.0. If a copy of the MPL was not distributed with this +// file, You can obtain one at http://mozilla.org/MPL/2.0/. + +// PRInt32 _PR_x86_64_AtomicIncrement(PRInt32 *val) +// +// Atomically increment the integer pointed to by 'val' and return +// the result of the increment. +// + .text + .globl _PR_x86_64_AtomicIncrement + .type _PR_x86_64_AtomicIncrement, @function + .align 4 +_PR_x86_64_AtomicIncrement: + movl $1, %eax + lock + xaddl %eax, (%rdi) + incl %eax + ret + .size _PR_x86_64_AtomicIncrement, .-_PR_x86_64_AtomicIncrement + +// PRInt32 _PR_x86_64_AtomicDecrement(PRInt32 *val) +// +// Atomically decrement the integer pointed to by 'val' and return +// the result of the decrement. +// + .text + .globl _PR_x86_64_AtomicDecrement + .type _PR_x86_64_AtomicDecrement, @function + .align 4 +_PR_x86_64_AtomicDecrement: + movl $-1, %eax + lock + xaddl %eax, (%rdi) + decl %eax + ret + .size _PR_x86_64_AtomicDecrement, .-_PR_x86_64_AtomicDecrement + +// PRInt32 _PR_x86_64_AtomicSet(PRInt32 *val, PRInt32 newval) +// +// Atomically set the integer pointed to by 'val' to the new +// value 'newval' and return the old value. +// + .text + .globl _PR_x86_64_AtomicSet + .type _PR_x86_64_AtomicSet, @function + .align 4 +_PR_x86_64_AtomicSet: + movl %esi, %eax + xchgl %eax, (%rdi) + ret + .size _PR_x86_64_AtomicSet, .-_PR_x86_64_AtomicSet + +// PRInt32 _PR_x86_64_AtomicAdd(PRInt32 *ptr, PRInt32 val) +// +// Atomically add 'val' to the integer pointed to by 'ptr' +// and return the result of the addition. +// + .text + .globl _PR_x86_64_AtomicAdd + .type _PR_x86_64_AtomicAdd, @function + .align 4 +_PR_x86_64_AtomicAdd: + movl %esi, %eax + lock + xaddl %eax, (%rdi) + addl %esi, %eax + ret + .size _PR_x86_64_AtomicAdd, .-_PR_x86_64_AtomicAdd + +// Magic indicating no need for an executable stack +.section .note.GNU-stack, "", @progbits diff --git a/nsprpub/pr/src/md/unix/os_SunOS_sparcv9.s b/nsprpub/pr/src/md/unix/os_SunOS_sparcv9.s new file mode 100644 index 0000000000..8bc75af88d --- /dev/null +++ b/nsprpub/pr/src/md/unix/os_SunOS_sparcv9.s @@ -0,0 +1,173 @@ +! -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- +! +! This Source Code Form is subject to the terms of the Mozilla Public +! License, v. 2.0. If a copy of the MPL was not distributed with this +! file, You can obtain one at http://mozilla.org/MPL/2.0/. + +! +! atomic increment, decrement and swap routines for V8+ sparc (ultrasparc) +! using CAS (compare-and-swap) atomic instructions +! +! this MUST be compiled with an ultrasparc-aware assembler +! +! standard asm linkage macros; this module must be compiled +! with the -P option (use C preprocessor) + +#include <sys/asm_linkage.h> + +! ====================================================================== +! +! Perform the sequence a = a + 1 atomically with respect to other +! fetch-and-adds to location a in a wait-free fashion. +! +! usage : val = PR_AtomicIncrement(address) +! return: current value (you'd think this would be old val) +! +! ----------------------- +! Note on REGISTER USAGE: +! as this is a LEAF procedure, a new stack frame is not created; +! we use the caller's stack frame so what would normally be %i (input) +! registers are actually %o (output registers). Also, we must not +! overwrite the contents of %l (local) registers as they are not +! assumed to be volatile during calls. +! +! So, the registers used are: +! %o0 [input] - the address of the value to increment +! %o1 [local] - work register +! %o2 [local] - work register +! %o3 [local] - work register +! ----------------------- + + ENTRY(_MD_AtomicIncrement) ! standard assembler/ELF prologue + +retryAI: + ld [%o0], %o2 ! set o2 to the current value + add %o2, 0x1, %o3 ! calc the new value + mov %o3, %o1 ! save the return value + cas [%o0], %o2, %o3 ! atomically set if o0 hasn't changed + cmp %o2, %o3 ! see if we set the value + bne retryAI ! if not, try again + nop ! empty out the branch pipeline + retl ! return back to the caller + mov %o1, %o0 ! set the return code to the new value + + SET_SIZE(_MD_AtomicIncrement) ! standard assembler/ELF epilogue + +! +! end +! +! ====================================================================== +! + +! ====================================================================== +! +! Perform the sequence a = a - 1 atomically with respect to other +! fetch-and-decs to location a in a wait-free fashion. +! +! usage : val = PR_AtomicDecrement(address) +! return: current value (you'd think this would be old val) +! +! ----------------------- +! Note on REGISTER USAGE: +! as this is a LEAF procedure, a new stack frame is not created; +! we use the caller's stack frame so what would normally be %i (input) +! registers are actually %o (output registers). Also, we must not +! overwrite the contents of %l (local) registers as they are not +! assumed to be volatile during calls. +! +! So, the registers used are: +! %o0 [input] - the address of the value to increment +! %o1 [local] - work register +! %o2 [local] - work register +! %o3 [local] - work register +! ----------------------- + + ENTRY(_MD_AtomicDecrement) ! standard assembler/ELF prologue + +retryAD: + ld [%o0], %o2 ! set o2 to the current value + sub %o2, 0x1, %o3 ! calc the new value + mov %o3, %o1 ! save the return value + cas [%o0], %o2, %o3 ! atomically set if o0 hasn't changed + cmp %o2, %o3 ! see if we set the value + bne retryAD ! if not, try again + nop ! empty out the branch pipeline + retl ! return back to the caller + mov %o1, %o0 ! set the return code to the new value + + SET_SIZE(_MD_AtomicDecrement) ! standard assembler/ELF epilogue + +! +! end +! +! ====================================================================== +! + +! ====================================================================== +! +! Perform the sequence a = b atomically with respect to other +! fetch-and-stores to location a in a wait-free fashion. +! +! usage : old_val = PR_AtomicSet(address, newval) +! +! ----------------------- +! Note on REGISTER USAGE: +! as this is a LEAF procedure, a new stack frame is not created; +! we use the caller's stack frame so what would normally be %i (input) +! registers are actually %o (output registers). Also, we must not +! overwrite the contents of %l (local) registers as they are not +! assumed to be volatile during calls. +! +! So, the registers used are: +! %o0 [input] - the address of the value to increment +! %o1 [input] - the new value to set for [%o0] +! %o2 [local] - work register +! %o3 [local] - work register +! ----------------------- + + ENTRY(_MD_AtomicSet) ! standard assembler/ELF prologue + +retryAS: + ld [%o0], %o2 ! set o2 to the current value + mov %o1, %o3 ! set up the new value + cas [%o0], %o2, %o3 ! atomically set if o0 hasn't changed + cmp %o2, %o3 ! see if we set the value + bne retryAS ! if not, try again + nop ! empty out the branch pipeline + retl ! return back to the caller + mov %o3, %o0 ! set the return code to the prev value + + SET_SIZE(_MD_AtomicSet) ! standard assembler/ELF epilogue + +! +! end +! +! ====================================================================== +! + +! ====================================================================== +! +! Perform the sequence a = a + b atomically with respect to other +! fetch-and-adds to location a in a wait-free fashion. +! +! usage : newval = PR_AtomicAdd(address, val) +! return: the value after addition +! + ENTRY(_MD_AtomicAdd) ! standard assembler/ELF prologue + +retryAA: + ld [%o0], %o2 ! set o2 to the current value + add %o2, %o1, %o3 ! calc the new value + mov %o3, %o4 ! save the return value + cas [%o0], %o2, %o3 ! atomically set if o0 hasn't changed + cmp %o2, %o3 ! see if we set the value + bne retryAA ! if not, try again + nop ! empty out the branch pipeline + retl ! return back to the caller + mov %o4, %o0 ! set the return code to the new value + + SET_SIZE(_MD_AtomicAdd) ! standard assembler/ELF epilogue + +! +! end +! diff --git a/nsprpub/pr/src/md/unix/os_SunOS_ultrasparc.s b/nsprpub/pr/src/md/unix/os_SunOS_ultrasparc.s new file mode 100644 index 0000000000..32bf7884ac --- /dev/null +++ b/nsprpub/pr/src/md/unix/os_SunOS_ultrasparc.s @@ -0,0 +1,173 @@ +! -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- +! +! This Source Code Form is subject to the terms of the Mozilla Public +! License, v. 2.0. If a copy of the MPL was not distributed with this +! file, You can obtain one at http://mozilla.org/MPL/2.0/. + +! +! atomic increment, decrement and swap routines for V8+ sparc (ultrasparc) +! using CAS (compare-and-swap) atomic instructions +! +! this MUST be compiled with an ultrasparc-aware assembler +! +! standard asm linkage macros; this module must be compiled +! with the -P option (use C preprocessor) + +#include <sys/asm_linkage.h> + +! ====================================================================== +! +! Perform the sequence a = a + 1 atomically with respect to other +! fetch-and-adds to location a in a wait-free fashion. +! +! usage : val = PR_AtomicIncrement(address) +! return: current value (you'd think this would be old val) +! +! ----------------------- +! Note on REGISTER USAGE: +! as this is a LEAF procedure, a new stack frame is not created; +! we use the caller's stack frame so what would normally be %i (input) +! registers are actually %o (output registers). Also, we must not +! overwrite the contents of %l (local) registers as they are not +! assumed to be volatile during calls. +! +! So, the registers used are: +! %o0 [input] - the address of the value to increment +! %o1 [local] - work register +! %o2 [local] - work register +! %o3 [local] - work register +! ----------------------- + + ENTRY(PR_AtomicIncrement) ! standard assembler/ELF prologue + +retryAI: + ld [%o0], %o2 ! set o2 to the current value + add %o2, 0x1, %o3 ! calc the new value + mov %o3, %o1 ! save the return value + cas [%o0], %o2, %o3 ! atomically set if o0 hasn't changed + cmp %o2, %o3 ! see if we set the value + bne retryAI ! if not, try again + nop ! empty out the branch pipeline + retl ! return back to the caller + mov %o1, %o0 ! set the return code to the new value + + SET_SIZE(PR_AtomicIncrement) ! standard assembler/ELF epilogue + +! +! end +! +! ====================================================================== +! + +! ====================================================================== +! +! Perform the sequence a = a - 1 atomically with respect to other +! fetch-and-decs to location a in a wait-free fashion. +! +! usage : val = PR_AtomicDecrement(address) +! return: current value (you'd think this would be old val) +! +! ----------------------- +! Note on REGISTER USAGE: +! as this is a LEAF procedure, a new stack frame is not created; +! we use the caller's stack frame so what would normally be %i (input) +! registers are actually %o (output registers). Also, we must not +! overwrite the contents of %l (local) registers as they are not +! assumed to be volatile during calls. +! +! So, the registers used are: +! %o0 [input] - the address of the value to increment +! %o1 [local] - work register +! %o2 [local] - work register +! %o3 [local] - work register +! ----------------------- + + ENTRY(PR_AtomicDecrement) ! standard assembler/ELF prologue + +retryAD: + ld [%o0], %o2 ! set o2 to the current value + sub %o2, 0x1, %o3 ! calc the new value + mov %o3, %o1 ! save the return value + cas [%o0], %o2, %o3 ! atomically set if o0 hasn't changed + cmp %o2, %o3 ! see if we set the value + bne retryAD ! if not, try again + nop ! empty out the branch pipeline + retl ! return back to the caller + mov %o1, %o0 ! set the return code to the new value + + SET_SIZE(PR_AtomicDecrement) ! standard assembler/ELF epilogue + +! +! end +! +! ====================================================================== +! + +! ====================================================================== +! +! Perform the sequence a = b atomically with respect to other +! fetch-and-stores to location a in a wait-free fashion. +! +! usage : old_val = PR_AtomicSet(address, newval) +! +! ----------------------- +! Note on REGISTER USAGE: +! as this is a LEAF procedure, a new stack frame is not created; +! we use the caller's stack frame so what would normally be %i (input) +! registers are actually %o (output registers). Also, we must not +! overwrite the contents of %l (local) registers as they are not +! assumed to be volatile during calls. +! +! So, the registers used are: +! %o0 [input] - the address of the value to increment +! %o1 [input] - the new value to set for [%o0] +! %o2 [local] - work register +! %o3 [local] - work register +! ----------------------- + + ENTRY(PR_AtomicSet) ! standard assembler/ELF prologue + +retryAS: + ld [%o0], %o2 ! set o2 to the current value + mov %o1, %o3 ! set up the new value + cas [%o0], %o2, %o3 ! atomically set if o0 hasn't changed + cmp %o2, %o3 ! see if we set the value + bne retryAS ! if not, try again + nop ! empty out the branch pipeline + retl ! return back to the caller + mov %o3, %o0 ! set the return code to the prev value + + SET_SIZE(PR_AtomicSet) ! standard assembler/ELF epilogue + +! +! end +! +! ====================================================================== +! + +! ====================================================================== +! +! Perform the sequence a = a + b atomically with respect to other +! fetch-and-adds to location a in a wait-free fashion. +! +! usage : newval = PR_AtomicAdd(address, val) +! return: the value after addition +! + ENTRY(PR_AtomicAdd) ! standard assembler/ELF prologue + +retryAA: + ld [%o0], %o2 ! set o2 to the current value + add %o2, %o1, %o3 ! calc the new value + mov %o3, %o4 ! save the return value + cas [%o0], %o2, %o3 ! atomically set if o0 hasn't changed + cmp %o2, %o3 ! see if we set the value + bne retryAA ! if not, try again + nop ! empty out the branch pipeline + retl ! return back to the caller + mov %o4, %o0 ! set the return code to the new value + + SET_SIZE(PR_AtomicAdd) ! standard assembler/ELF epilogue + +! +! end +! diff --git a/nsprpub/pr/src/md/unix/os_SunOS_x86.s b/nsprpub/pr/src/md/unix/os_SunOS_x86.s new file mode 100644 index 0000000000..dcd7535bf6 --- /dev/null +++ b/nsprpub/pr/src/md/unix/os_SunOS_x86.s @@ -0,0 +1,126 @@ +// -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- +// +// This Source Code Form is subject to the terms of the Mozilla Public +// License, v. 2.0. If a copy of the MPL was not distributed with this +// file, You can obtain one at http://mozilla.org/MPL/2.0/. + + .text + + .globl getedi +getedi: + movl %edi,%eax + ret + .type getedi,@function + .size getedi,.-getedi + + .globl setedi +setedi: + movl 4(%esp),%edi + ret + .type setedi,@function + .size setedi,.-setedi + + .globl __MD_FlushRegisterWindows + .globl _MD_FlushRegisterWindows + +__MD_FlushRegisterWindows: +_MD_FlushRegisterWindows: + + ret + +// +// sol_getsp() +// +// Return the current sp (for debugging) +// + .globl sol_getsp +sol_getsp: + movl %esp, %eax + ret + +// +// sol_curthread() +// +// Return a unique identifier for the currently active thread. +// + .globl sol_curthread +sol_curthread: + movl %ecx, %eax + ret + +// PRInt32 _MD_AtomicIncrement(PRInt32 *val) +// +// Atomically increment the integer pointed to by 'val' and return +// the result of the increment. +// + .text + .globl _MD_AtomicIncrement + .align 4 +_MD_AtomicIncrement: + movl 4(%esp), %ecx + movl $1, %eax + lock + xaddl %eax, (%ecx) + incl %eax + ret + +// PRInt32 _MD_AtomicDecrement(PRInt32 *val) +// +// Atomically decrement the integer pointed to by 'val' and return +// the result of the decrement. +// + .text + .globl _MD_AtomicDecrement + .align 4 +_MD_AtomicDecrement: + movl 4(%esp), %ecx + movl $-1, %eax + lock + xaddl %eax, (%ecx) + decl %eax + ret + +// PRInt32 _MD_AtomicSet(PRInt32 *val, PRInt32 newval) +// +// Atomically set the integer pointed to by 'val' to the new +// value 'newval' and return the old value. +// +// An alternative implementation: +// .text +// .globl _MD_AtomicSet +// .align 4 +//_MD_AtomicSet: +// movl 4(%esp), %ecx +// movl 8(%esp), %edx +// movl (%ecx), %eax +//retry: +// lock +// cmpxchgl %edx, (%ecx) +// jne retry +// ret +// + .text + .globl _MD_AtomicSet + .align 4 +_MD_AtomicSet: + movl 4(%esp), %ecx + movl 8(%esp), %eax + xchgl %eax, (%ecx) + ret + +// PRInt32 _MD_AtomicAdd(PRInt32 *ptr, PRInt32 val) +// +// Atomically add 'val' to the integer pointed to by 'ptr' +// and return the result of the addition. +// + .text + .globl _MD_AtomicAdd + .align 4 +_MD_AtomicAdd: + movl 4(%esp), %ecx + movl 8(%esp), %eax + movl %eax, %edx + lock + xaddl %eax, (%ecx) + addl %edx, %eax + ret diff --git a/nsprpub/pr/src/md/unix/os_SunOS_x86_64.s b/nsprpub/pr/src/md/unix/os_SunOS_x86_64.s new file mode 100644 index 0000000000..5e3df049fe --- /dev/null +++ b/nsprpub/pr/src/md/unix/os_SunOS_x86_64.s @@ -0,0 +1,63 @@ +// -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- +// +// This Source Code Form is subject to the terms of the Mozilla Public +// License, v. 2.0. If a copy of the MPL was not distributed with this +// file, You can obtain one at http://mozilla.org/MPL/2.0/. + +// PRInt32 _MD_AtomicIncrement(PRInt32 *val) +// +// Atomically increment the integer pointed to by 'val' and return +// the result of the increment. +// + .text + .globl _MD_AtomicIncrement + .align 4 +_MD_AtomicIncrement: + movl $1, %eax + lock + xaddl %eax, (%rdi) + incl %eax + ret + +// PRInt32 _MD_AtomicDecrement(PRInt32 *val) +// +// Atomically decrement the integer pointed to by 'val' and return +// the result of the decrement. +// + .text + .globl _MD_AtomicDecrement + .align 4 +_MD_AtomicDecrement: + movl $-1, %eax + lock + xaddl %eax, (%rdi) + decl %eax + ret + +// PRInt32 _MD_AtomicSet(PRInt32 *val, PRInt32 newval) +// +// Atomically set the integer pointed to by 'val' to the new +// value 'newval' and return the old value. +// + .text + .globl _MD_AtomicSet + .align 4 +_MD_AtomicSet: + movl %esi, %eax + xchgl %eax, (%rdi) + ret + +// PRInt32 _MD_AtomicAdd(PRInt32 *ptr, PRInt32 val) +// +// Atomically add 'val' to the integer pointed to by 'ptr' +// and return the result of the addition. +// + .text + .globl _MD_AtomicAdd + .align 4 +_MD_AtomicAdd: + movl %esi, %eax + lock + xaddl %eax, (%rdi) + addl %esi, %eax + ret diff --git a/nsprpub/pr/src/md/unix/pthreads_user.c b/nsprpub/pr/src/md/unix/pthreads_user.c new file mode 100644 index 0000000000..525c1576ff --- /dev/null +++ b/nsprpub/pr/src/md/unix/pthreads_user.c @@ -0,0 +1,464 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "primpl.h" +#include <sys/types.h> +#include <unistd.h> +#include <signal.h> +#include <pthread.h> + + +sigset_t ints_off; +pthread_mutex_t _pr_heapLock; +pthread_key_t current_thread_key; +pthread_key_t current_cpu_key; +pthread_key_t last_thread_key; +pthread_key_t intsoff_key; + + +PRInt32 _pr_md_pthreads_created, _pr_md_pthreads_failed; +PRInt32 _pr_md_pthreads = 1; + +void _MD_EarlyInit(void) +{ + extern PRInt32 _nspr_noclock; + + if (pthread_key_create(¤t_thread_key, NULL) != 0) { + perror("pthread_key_create failed"); + exit(1); + } + if (pthread_key_create(¤t_cpu_key, NULL) != 0) { + perror("pthread_key_create failed"); + exit(1); + } + if (pthread_key_create(&last_thread_key, NULL) != 0) { + perror("pthread_key_create failed"); + exit(1); + } + if (pthread_key_create(&intsoff_key, NULL) != 0) { + perror("pthread_key_create failed"); + exit(1); + } + + sigemptyset(&ints_off); + sigaddset(&ints_off, SIGALRM); + sigaddset(&ints_off, SIGIO); + sigaddset(&ints_off, SIGCLD); + + /* + * disable clock interrupts + */ + _nspr_noclock = 1; + +} + +void _MD_InitLocks() +{ + if (pthread_mutex_init(&_pr_heapLock, NULL) != 0) { + perror("pthread_mutex_init failed"); + exit(1); + } +} + +PR_IMPLEMENT(void) _MD_FREE_LOCK(struct _MDLock *lockp) +{ + PRIntn _is; + PRThread *me = _PR_MD_CURRENT_THREAD(); + + if (me && !_PR_IS_NATIVE_THREAD(me)) { + _PR_INTSOFF(_is); + } + pthread_mutex_destroy(&lockp->mutex); + if (me && !_PR_IS_NATIVE_THREAD(me)) { + _PR_FAST_INTSON(_is); + } +} + + + +PR_IMPLEMENT(PRStatus) _MD_NEW_LOCK(struct _MDLock *lockp) +{ + PRStatus rv; + PRIntn is; + PRThread *me = _PR_MD_CURRENT_THREAD(); + + if (me && !_PR_IS_NATIVE_THREAD(me)) { + _PR_INTSOFF(is); + } + rv = pthread_mutex_init(&lockp->mutex, NULL); + if (me && !_PR_IS_NATIVE_THREAD(me)) { + _PR_FAST_INTSON(is); + } + return (rv == 0) ? PR_SUCCESS : PR_FAILURE; +} + + +PRWord *_MD_HomeGCRegisters(PRThread *t, int isCurrent, int *np) +{ + if (isCurrent) { + (void) setjmp(CONTEXT(t)); + } + *np = sizeof(CONTEXT(t)) / sizeof(PRWord); + return (PRWord *) CONTEXT(t); +} + +PR_IMPLEMENT(void) +_MD_SetPriority(_MDThread *thread, PRThreadPriority newPri) +{ + /* + * XXX - to be implemented + */ + return; +} + +PR_IMPLEMENT(PRStatus) _MD_InitThread(struct PRThread *thread) +{ + struct sigaction sigact; + + if (thread->flags & _PR_GLOBAL_SCOPE) { + thread->md.pthread = pthread_self(); +#if 0 + /* + * set up SIGUSR1 handler; this is used to save state + * during PR_SuspendAll + */ + sigact.sa_handler = save_context_and_block; + sigact.sa_flags = SA_RESTART; + /* + * Must mask clock interrupts + */ + sigact.sa_mask = timer_set; + sigaction(SIGUSR1, &sigact, 0); +#endif + } + + return PR_SUCCESS; +} + +PR_IMPLEMENT(void) _MD_ExitThread(struct PRThread *thread) +{ + if (thread->flags & _PR_GLOBAL_SCOPE) { + _MD_CLEAN_THREAD(thread); + _MD_SET_CURRENT_THREAD(NULL); + } +} + +PR_IMPLEMENT(void) _MD_CleanThread(struct PRThread *thread) +{ + if (thread->flags & _PR_GLOBAL_SCOPE) { + pthread_mutex_destroy(&thread->md.pthread_mutex); + pthread_cond_destroy(&thread->md.pthread_cond); + } +} + +PR_IMPLEMENT(void) _MD_SuspendThread(struct PRThread *thread) +{ + PRInt32 rv; + + PR_ASSERT((thread->flags & _PR_GLOBAL_SCOPE) && + _PR_IS_GCABLE_THREAD(thread)); +#if 0 + thread->md.suspending_id = getpid(); + rv = kill(thread->md.id, SIGUSR1); + PR_ASSERT(rv == 0); + /* + * now, block the current thread/cpu until woken up by the suspended + * thread from it's SIGUSR1 signal handler + */ + blockproc(getpid()); +#endif +} + +PR_IMPLEMENT(void) _MD_ResumeThread(struct PRThread *thread) +{ + PRInt32 rv; + + PR_ASSERT((thread->flags & _PR_GLOBAL_SCOPE) && + _PR_IS_GCABLE_THREAD(thread)); +#if 0 + rv = unblockproc(thread->md.id); +#endif +} + +PR_IMPLEMENT(void) _MD_SuspendCPU(struct _PRCPU *thread) +{ + PRInt32 rv; + +#if 0 + cpu->md.suspending_id = getpid(); + rv = kill(cpu->md.id, SIGUSR1); + PR_ASSERT(rv == 0); + /* + * now, block the current thread/cpu until woken up by the suspended + * thread from it's SIGUSR1 signal handler + */ + blockproc(getpid()); +#endif +} + +PR_IMPLEMENT(void) _MD_ResumeCPU(struct _PRCPU *thread) +{ +#if 0 + unblockproc(cpu->md.id); +#endif +} + + +#define PT_NANOPERMICRO 1000UL +#define PT_BILLION 1000000000UL + +PR_IMPLEMENT(PRStatus) +_pt_wait(PRThread *thread, PRIntervalTime timeout) +{ + int rv; + struct timeval now; + struct timespec tmo; + PRUint32 ticks = PR_TicksPerSecond(); + + + if (timeout != PR_INTERVAL_NO_TIMEOUT) { + tmo.tv_sec = timeout / ticks; + tmo.tv_nsec = timeout - (tmo.tv_sec * ticks); + tmo.tv_nsec = PR_IntervalToMicroseconds(PT_NANOPERMICRO * + tmo.tv_nsec); + + /* pthreads wants this in absolute time, off we go ... */ + (void)GETTIMEOFDAY(&now); + /* that one's usecs, this one's nsecs - grrrr! */ + tmo.tv_sec += now.tv_sec; + tmo.tv_nsec += (PT_NANOPERMICRO * now.tv_usec); + tmo.tv_sec += tmo.tv_nsec / PT_BILLION; + tmo.tv_nsec %= PT_BILLION; + } + + pthread_mutex_lock(&thread->md.pthread_mutex); + thread->md.wait--; + if (thread->md.wait < 0) { + if (timeout != PR_INTERVAL_NO_TIMEOUT) { + rv = pthread_cond_timedwait(&thread->md.pthread_cond, + &thread->md.pthread_mutex, &tmo); + } + else + rv = pthread_cond_wait(&thread->md.pthread_cond, + &thread->md.pthread_mutex); + if (rv != 0) { + thread->md.wait++; + } + } else { + rv = 0; + } + pthread_mutex_unlock(&thread->md.pthread_mutex); + + return (rv == 0) ? PR_SUCCESS : PR_FAILURE; +} + +PR_IMPLEMENT(PRStatus) +_MD_wait(PRThread *thread, PRIntervalTime ticks) +{ + if ( thread->flags & _PR_GLOBAL_SCOPE ) { + _MD_CHECK_FOR_EXIT(); + if (_pt_wait(thread, ticks) == PR_FAILURE) { + _MD_CHECK_FOR_EXIT(); + /* + * wait timed out + */ + _PR_THREAD_LOCK(thread); + if (thread->wait.cvar) { + /* + * The thread will remove itself from the waitQ + * of the cvar in _PR_WaitCondVar + */ + thread->wait.cvar = NULL; + thread->state = _PR_RUNNING; + _PR_THREAD_UNLOCK(thread); + } else { + _pt_wait(thread, PR_INTERVAL_NO_TIMEOUT); + _PR_THREAD_UNLOCK(thread); + } + } + } else { + _PR_MD_SWITCH_CONTEXT(thread); + } + return PR_SUCCESS; +} + +PR_IMPLEMENT(PRStatus) +_MD_WakeupWaiter(PRThread *thread) +{ + PRThread *me = _PR_MD_CURRENT_THREAD(); + PRInt32 pid, rv; + PRIntn is; + + PR_ASSERT(_pr_md_idle_cpus >= 0); + if (thread == NULL) { + if (_pr_md_idle_cpus) { + _MD_Wakeup_CPUs(); + } + } else if (!_PR_IS_NATIVE_THREAD(thread)) { + /* + * If the thread is on my cpu's runq there is no need to + * wakeup any cpus + */ + if (!_PR_IS_NATIVE_THREAD(me)) { + if (me->cpu != thread->cpu) { + if (_pr_md_idle_cpus) { + _MD_Wakeup_CPUs(); + } + } + } else { + if (_pr_md_idle_cpus) { + _MD_Wakeup_CPUs(); + } + } + } else { + PR_ASSERT(_PR_IS_NATIVE_THREAD(thread)); + if (!_PR_IS_NATIVE_THREAD(me)) { + _PR_INTSOFF(is); + } + + pthread_mutex_lock(&thread->md.pthread_mutex); + thread->md.wait++; + rv = pthread_cond_signal(&thread->md.pthread_cond); + PR_ASSERT(rv == 0); + pthread_mutex_unlock(&thread->md.pthread_mutex); + + if (!_PR_IS_NATIVE_THREAD(me)) { + _PR_FAST_INTSON(is); + } + } + return PR_SUCCESS; +} + +/* These functions should not be called for AIX */ +PR_IMPLEMENT(void) +_MD_YIELD(void) +{ + PR_NOT_REACHED("_MD_YIELD should not be called for AIX."); +} + +PR_IMPLEMENT(PRStatus) +_MD_CreateThread( + PRThread *thread, + void (*start) (void *), + PRThreadPriority priority, + PRThreadScope scope, + PRThreadState state, + PRUint32 stackSize) +{ + PRIntn is; + int rv; + PRThread *me = _PR_MD_CURRENT_THREAD(); + pthread_attr_t attr; + + if (!_PR_IS_NATIVE_THREAD(me)) { + _PR_INTSOFF(is); + } + + if (pthread_mutex_init(&thread->md.pthread_mutex, NULL) != 0) { + if (!_PR_IS_NATIVE_THREAD(me)) { + _PR_FAST_INTSON(is); + } + return PR_FAILURE; + } + + if (pthread_cond_init(&thread->md.pthread_cond, NULL) != 0) { + pthread_mutex_destroy(&thread->md.pthread_mutex); + if (!_PR_IS_NATIVE_THREAD(me)) { + _PR_FAST_INTSON(is); + } + return PR_FAILURE; + } + thread->flags |= _PR_GLOBAL_SCOPE; + + pthread_attr_init(&attr); /* initialize attr with default attributes */ + if (pthread_attr_setstacksize(&attr, (size_t) stackSize) != 0) { + pthread_mutex_destroy(&thread->md.pthread_mutex); + pthread_cond_destroy(&thread->md.pthread_cond); + pthread_attr_destroy(&attr); + if (!_PR_IS_NATIVE_THREAD(me)) { + _PR_FAST_INTSON(is); + } + return PR_FAILURE; + } + + thread->md.wait = 0; + rv = pthread_create(&thread->md.pthread, &attr, start, (void *)thread); + if (0 == rv) { + _MD_ATOMIC_INCREMENT(&_pr_md_pthreads_created); + _MD_ATOMIC_INCREMENT(&_pr_md_pthreads); + if (!_PR_IS_NATIVE_THREAD(me)) { + _PR_FAST_INTSON(is); + } + return PR_SUCCESS; + } else { + pthread_mutex_destroy(&thread->md.pthread_mutex); + pthread_cond_destroy(&thread->md.pthread_cond); + pthread_attr_destroy(&attr); + _MD_ATOMIC_INCREMENT(&_pr_md_pthreads_failed); + if (!_PR_IS_NATIVE_THREAD(me)) { + _PR_FAST_INTSON(is); + } + PR_SetError(PR_INSUFFICIENT_RESOURCES_ERROR, rv); + return PR_FAILURE; + } +} + +PR_IMPLEMENT(void) +_MD_InitRunningCPU(struct _PRCPU *cpu) +{ + extern int _pr_md_pipefd[2]; + + _MD_unix_init_running_cpu(cpu); + cpu->md.pthread = pthread_self(); + if (_pr_md_pipefd[0] >= 0) { + _PR_IOQ_MAX_OSFD(cpu) = _pr_md_pipefd[0]; +#ifndef _PR_USE_POLL + FD_SET(_pr_md_pipefd[0], &_PR_FD_READ_SET(cpu)); +#endif + } +} + + +void +_MD_CleanupBeforeExit(void) +{ +#if 0 + extern PRInt32 _pr_cpus_exit; + + _pr_irix_exit_now = 1; + if (_pr_numCPU > 1) { + /* + * Set a global flag, and wakeup all cpus which will notice the flag + * and exit. + */ + _pr_cpus_exit = getpid(); + _MD_Wakeup_CPUs(); + while(_pr_numCPU > 1) { + _PR_WAIT_SEM(_pr_irix_exit_sem); + _pr_numCPU--; + } + } + /* + * cause global threads on the recycle list to exit + */ + _PR_DEADQ_LOCK; + if (_PR_NUM_DEADNATIVE != 0) { + PRThread *thread; + PRCList *ptr; + + ptr = _PR_DEADNATIVEQ.next; + while( ptr != &_PR_DEADNATIVEQ ) { + thread = _PR_THREAD_PTR(ptr); + _MD_CVAR_POST_SEM(thread); + ptr = ptr->next; + } + } + _PR_DEADQ_UNLOCK; + while(_PR_NUM_DEADNATIVE > 1) { + _PR_WAIT_SEM(_pr_irix_exit_sem); + _PR_DEC_DEADNATIVE; + } +#endif +} diff --git a/nsprpub/pr/src/md/unix/qnx.c b/nsprpub/pr/src/md/unix/qnx.c new file mode 100644 index 0000000000..aef97a25a0 --- /dev/null +++ b/nsprpub/pr/src/md/unix/qnx.c @@ -0,0 +1,70 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "primpl.h" + +#include <setjmp.h> + +void _MD_EarlyInit(void) +{ +} + +PRWord *_MD_HomeGCRegisters(PRThread *t, int isCurrent, int *np) +{ + if (isCurrent) { + (void) setjmp(CONTEXT(t)); + } + *np = sizeof(CONTEXT(t)) / sizeof(PRWord); + return (PRWord *) CONTEXT(t); +} + +void +_MD_SET_PRIORITY(_MDThread *thread, PRUintn newPri) +{ + return; +} + +PRStatus +_MD_InitializeThread(PRThread *thread) +{ + return PR_SUCCESS; +} + +PRStatus +_MD_WAIT(PRThread *thread, PRIntervalTime ticks) +{ + PR_ASSERT(!(thread->flags & _PR_GLOBAL_SCOPE)); + _PR_MD_SWITCH_CONTEXT(thread); + return PR_SUCCESS; +} + +PRStatus +_MD_WAKEUP_WAITER(PRThread *thread) +{ + if (thread) { + PR_ASSERT(!(thread->flags & _PR_GLOBAL_SCOPE)); + } + return PR_SUCCESS; +} + +/* These functions should not be called for Unixware */ +void +_MD_YIELD(void) +{ + PR_NOT_REACHED("_MD_YIELD should not be called for Unixware."); +} + +PRStatus +_MD_CREATE_THREAD( + PRThread *thread, + void (*start) (void *), + PRUintn priority, + PRThreadScope scope, + PRThreadState state, + PRUint32 stackSize) +{ + PR_NOT_REACHED("_MD_CREATE_THREAD should not be called for Unixware."); + return PR_FAILURE; +} diff --git a/nsprpub/pr/src/md/unix/riscos.c b/nsprpub/pr/src/md/unix/riscos.c new file mode 100644 index 0000000000..a041188753 --- /dev/null +++ b/nsprpub/pr/src/md/unix/riscos.c @@ -0,0 +1,88 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "primpl.h" + +void _MD_EarlyInit(void) +{ +} + +PRWord *_MD_HomeGCRegisters(PRThread *t, int isCurrent, int *np) +{ +#ifndef _PR_PTHREADS + if (isCurrent) { + (void) setjmp(CONTEXT(t)); + } + *np = sizeof(CONTEXT(t)) / sizeof(PRWord); + return (PRWord *) CONTEXT(t); +#else + *np = 0; + return NULL; +#endif +} + +#ifdef _PR_PTHREADS + +void _MD_CleanupBeforeExit(void) +{ +} + +#else /* ! _PR_PTHREADS */ + +void +_MD_SET_PRIORITY(_MDThread *thread, PRUintn newPri) +{ + return; +} + +PRStatus +_MD_InitializeThread(PRThread *thread) +{ + /* + * set the pointers to the stack-pointer and frame-pointer words in the + * context structure; this is for debugging use. + */ + thread->md.sp = _MD_GET_SP_PTR(thread); + thread->md.fp = _MD_GET_FP_PTR(thread); + return PR_SUCCESS; +} + +PRStatus +_MD_WAIT(PRThread *thread, PRIntervalTime ticks) +{ + PR_ASSERT(!(thread->flags & _PR_GLOBAL_SCOPE)); + _PR_MD_SWITCH_CONTEXT(thread); + return PR_SUCCESS; +} + +PRStatus +_MD_WAKEUP_WAITER(PRThread *thread) +{ + if (thread) { + PR_ASSERT(!(thread->flags & _PR_GLOBAL_SCOPE)); + } + return PR_SUCCESS; +} + +/* These functions should not be called for RISC OS */ +void +_MD_YIELD(void) +{ + PR_NOT_REACHED("_MD_YIELD should not be called for RISC OS."); +} + +PRStatus +_MD_CREATE_THREAD( + PRThread *thread, + void (*start) (void *), + PRThreadPriority priority, + PRThreadScope scope, + PRThreadState state, + PRUint32 stackSize) +{ + PR_NOT_REACHED("_MD_CREATE_THREAD should not be called for RISC OS."); + return PR_FAILURE; +} +#endif /* ! _PR_PTHREADS */ diff --git a/nsprpub/pr/src/md/unix/scoos.c b/nsprpub/pr/src/md/unix/scoos.c new file mode 100644 index 0000000000..43b256d82b --- /dev/null +++ b/nsprpub/pr/src/md/unix/scoos.c @@ -0,0 +1,150 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +/* + * SCO ODT 5.0 - originally created by mikep + */ +#include "primpl.h" + +#include <setjmp.h> + +void _MD_EarlyInit(void) +{ +} + +PRWord *_MD_HomeGCRegisters(PRThread *t, int isCurrent, int *np) +{ + if (isCurrent) { + (void) setjmp(CONTEXT(t)); + } + *np = sizeof(CONTEXT(t)) / sizeof(PRWord); + return (PRWord *) CONTEXT(t); +} + +#ifdef ALARMS_BREAK_TCP /* I don't think they do */ + +PRInt32 _MD_connect(PRInt32 osfd, PRNetAddr *addr, PRInt32 addrlen, + PRIntervalTime timeout) +{ + PRInt32 rv; + + _MD_BLOCK_CLOCK_INTERRUPTS(); + rv = _connect(osfd,addr,addrlen); + _MD_UNBLOCK_CLOCK_INTERRUPTS(); +} + +PRInt32 _MD_accept(PRInt32 osfd, PRNetAddr *addr, PRInt32 addrlen, + PRIntervalTime timeout) +{ + PRInt32 rv; + + _MD_BLOCK_CLOCK_INTERRUPTS(); + rv = _accept(osfd,addr,addrlen); + _MD_UNBLOCK_CLOCK_INTERRUPTS(); + return(rv); +} +#endif + +/* + * These are also implemented in pratom.c using NSPR locks. Any reason + * this might be better or worse? If you like this better, define + * _PR_HAVE_ATOMIC_OPS in include/md/unixware.h + */ +#ifdef _PR_HAVE_ATOMIC_OPS +/* Atomic operations */ +#include <stdio.h> +static FILE *_uw_semf; + +void +_MD_INIT_ATOMIC(void) +{ + /* Sigh. Sure wish SYSV semaphores weren't such a pain to use */ + if ((_uw_semf = tmpfile()) == NULL) { + PR_ASSERT(0); + } + + return; +} + +void +_MD_ATOMIC_INCREMENT(PRInt32 *val) +{ + flockfile(_uw_semf); + (*val)++; + unflockfile(_uw_semf); +} + +void +_MD_ATOMIC_ADD(PRInt32 *ptr, PRInt32 val) +{ + flockfile(_uw_semf); + (*ptr) += val; + unflockfile(_uw_semf); +} + +void +_MD_ATOMIC_DECREMENT(PRInt32 *val) +{ + flockfile(_uw_semf); + (*val)--; + unflockfile(_uw_semf); +} + +void +_MD_ATOMIC_SET(PRInt32 *val, PRInt32 newval) +{ + flockfile(_uw_semf); + *val = newval; + unflockfile(_uw_semf); +} +#endif + +void +_MD_SET_PRIORITY(_MDThread *thread, PRUintn newPri) +{ + return; +} + +PRStatus +_MD_InitializeThread(PRThread *thread) +{ + return PR_SUCCESS; +} + +PRStatus +_MD_WAIT(PRThread *thread, PRIntervalTime ticks) +{ + PR_ASSERT(!(thread->flags & _PR_GLOBAL_SCOPE)); + _PR_MD_SWITCH_CONTEXT(thread); + return PR_SUCCESS; +} + +PRStatus +_MD_WAKEUP_WAITER(PRThread *thread) +{ + if (thread) { + PR_ASSERT(!(thread->flags & _PR_GLOBAL_SCOPE)); + } + return PR_SUCCESS; +} + +/* These functions should not be called for SCO */ +void +_MD_YIELD(void) +{ + PR_NOT_REACHED("_MD_YIELD should not be called for SCO."); +} + +PRStatus +_MD_CREATE_THREAD( + PRThread *thread, + void (*start) (void *), + PRThreadPriority priority, + PRThreadScope scope, + PRThreadState state, + PRUint32 stackSize) +{ + PR_NOT_REACHED("_MD_CREATE_THREAD should not be called for SCO."); +} diff --git a/nsprpub/pr/src/md/unix/solaris.c b/nsprpub/pr/src/md/unix/solaris.c new file mode 100644 index 0000000000..383f49d044 --- /dev/null +++ b/nsprpub/pr/src/md/unix/solaris.c @@ -0,0 +1,161 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "primpl.h" + + +extern PRBool suspendAllOn; +extern PRThread *suspendAllThread; + +extern void _MD_SET_PRIORITY(_MDThread *md, PRThreadPriority newPri); + +PRIntervalTime _MD_Solaris_TicksPerSecond(void) +{ + /* + * Ticks have a 10-microsecond resolution. So there are + * 100000 ticks per second. + */ + return 100000UL; +} + +/* Interval timers, implemented using gethrtime() */ + +PRIntervalTime _MD_Solaris_GetInterval(void) +{ + union { + hrtime_t hrt; /* hrtime_t is a 64-bit (long long) integer */ + PRInt64 pr64; + } time; + PRInt64 resolution; + PRIntervalTime ticks; + + time.hrt = gethrtime(); /* in nanoseconds */ + /* + * Convert from nanoseconds to ticks. A tick's resolution is + * 10 microseconds, or 10000 nanoseconds. + */ + LL_I2L(resolution, 10000); + LL_DIV(time.pr64, time.pr64, resolution); + LL_L2UI(ticks, time.pr64); + return ticks; +} + +#ifdef _PR_PTHREADS +void _MD_EarlyInit(void) +{ +} + +PRWord *_MD_HomeGCRegisters(PRThread *t, PRIntn isCurrent, PRIntn *np) +{ + *np = 0; + return NULL; +} +#endif /* _PR_PTHREADS */ + +#if defined(_PR_LOCAL_THREADS_ONLY) + +void _MD_EarlyInit(void) +{ +} + +void _MD_SolarisInit() +{ + _PR_UnixInit(); +} + +void +_MD_SET_PRIORITY(_MDThread *thread, PRThreadPriority newPri) +{ + return; +} + +PRStatus +_MD_InitializeThread(PRThread *thread) +{ + return PR_SUCCESS; +} + +PRStatus +_MD_WAIT(PRThread *thread, PRIntervalTime ticks) +{ + PR_ASSERT(!(thread->flags & _PR_GLOBAL_SCOPE)); + _PR_MD_SWITCH_CONTEXT(thread); + return PR_SUCCESS; +} + +PRStatus +_MD_WAKEUP_WAITER(PRThread *thread) +{ + PR_ASSERT((thread == NULL) || (!(thread->flags & _PR_GLOBAL_SCOPE))); + return PR_SUCCESS; +} + +/* These functions should not be called for Solaris */ +void +_MD_YIELD(void) +{ + PR_NOT_REACHED("_MD_YIELD should not be called for Solaris"); +} + +PRStatus +_MD_CREATE_THREAD( + PRThread *thread, + void (*start) (void *), + PRThreadPriority priority, + PRThreadScope scope, + PRThreadState state, + PRUint32 stackSize) +{ + PR_NOT_REACHED("_MD_CREATE_THREAD should not be called for Solaris"); + return(PR_FAILURE); +} + +#ifdef USE_SETJMP +PRWord *_MD_HomeGCRegisters(PRThread *t, int isCurrent, int *np) +{ + if (isCurrent) { + (void) setjmp(CONTEXT(t)); + } + *np = sizeof(CONTEXT(t)) / sizeof(PRWord); + return (PRWord *) CONTEXT(t); +} +#else +PRWord *_MD_HomeGCRegisters(PRThread *t, PRIntn isCurrent, PRIntn *np) +{ + if (isCurrent) { + (void) getcontext(CONTEXT(t)); + } + *np = NGREG; + return (PRWord*) &t->md.context.uc_mcontext.gregs[0]; +} +#endif /* USE_SETJMP */ + +#endif /* _PR_LOCAL_THREADS_ONLY */ + +#ifndef _PR_PTHREADS +#if defined(i386) && defined(SOLARIS2_4) +/* + * Because clock_gettime() on Solaris/x86 2.4 always generates a + * segmentation fault, we use an emulated version _pr_solx86_clock_gettime(), + * which is implemented using gettimeofday(). + */ + +int +_pr_solx86_clock_gettime(clockid_t clock_id, struct timespec *tp) +{ + struct timeval tv; + + if (clock_id != CLOCK_REALTIME) { + errno = EINVAL; + return -1; + } + + gettimeofday(&tv, NULL); + tp->tv_sec = tv.tv_sec; + tp->tv_nsec = tv.tv_usec * 1000; + return 0; +} +#endif /* i386 && SOLARIS2_4 */ +#endif /* _PR_PTHREADS */ diff --git a/nsprpub/pr/src/md/unix/unix.c b/nsprpub/pr/src/md/unix/unix.c new file mode 100644 index 0000000000..70bb8e8744 --- /dev/null +++ b/nsprpub/pr/src/md/unix/unix.c @@ -0,0 +1,3744 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "primpl.h" + +#include <string.h> +#include <signal.h> +#include <unistd.h> +#include <fcntl.h> +#include <sys/types.h> +#include <sys/socket.h> +#include <sys/time.h> +#include <sys/ioctl.h> +#include <sys/mman.h> +#include <unistd.h> +#include <sys/utsname.h> + +#ifdef _PR_POLL_AVAILABLE +#include <poll.h> +#endif + +#if defined(ANDROID) +#include <android/api-level.h> +#endif + +/* To get FIONREAD */ +#if defined(UNIXWARE) +#include <sys/filio.h> +#endif + +#if defined(NTO) +#include <sys/statvfs.h> +#endif + +/* + * Make sure _PRSockLen_t is 32-bit, because we will cast a PRUint32* or + * PRInt32* pointer to a _PRSockLen_t* pointer. + */ +#if defined(HAVE_SOCKLEN_T) \ + || (defined(__GLIBC__) && __GLIBC__ >= 2) +#define _PRSockLen_t socklen_t +#elif defined(HPUX) || defined(SOLARIS) \ + || defined(AIX4_1) || defined(LINUX) \ + || defined(BSDI) || defined(SCO) \ + || defined(DARWIN) \ + || defined(QNX) +#define _PRSockLen_t int +#elif (defined(AIX) && !defined(AIX4_1)) || defined(FREEBSD) \ + || defined(NETBSD) || defined(OPENBSD) || defined(UNIXWARE) \ + || defined(NTO) || defined(RISCOS) +#define _PRSockLen_t size_t +#else +#error "Cannot determine architecture" +#endif + +/* +** Global lock variable used to bracket calls into rusty libraries that +** aren't thread safe (like libc, libX, etc). +*/ +static PRLock *_pr_unix_rename_lock = NULL; +static PRMonitor *_pr_Xfe_mon = NULL; + +static PRInt64 minus_one; + +sigset_t timer_set; + +#if !defined(_PR_PTHREADS) + +static sigset_t empty_set; + +#ifdef SOLARIS +#include <sys/file.h> +#include <sys/filio.h> +#endif + +#ifndef PIPE_BUF +#define PIPE_BUF 512 +#endif + +/* + * _nspr_noclock - if set clock interrupts are disabled + */ +int _nspr_noclock = 1; + +/* + * There is an assertion in this code that NSPR's definition of PRIOVec + * is bit compatible with UNIX' definition of a struct iovec. This is + * applicable to the 'writev()' operations where the types are casually + * cast to avoid warnings. + */ + +int _pr_md_pipefd[2] = { -1, -1 }; +static char _pr_md_pipebuf[PIPE_BUF]; +static PRInt32 local_io_wait(PRInt32 osfd, PRInt32 wait_flag, + PRIntervalTime timeout); + +_PRInterruptTable _pr_interruptTable[] = { + { + "clock", _PR_MISSED_CLOCK, _PR_ClockInterrupt, + }, + { + 0 + } +}; + +void _MD_unix_init_running_cpu(_PRCPU *cpu) +{ + PR_INIT_CLIST(&(cpu->md.md_unix.ioQ)); + cpu->md.md_unix.ioq_max_osfd = -1; + cpu->md.md_unix.ioq_timeout = PR_INTERVAL_NO_TIMEOUT; +} + +PRStatus _MD_open_dir(_MDDir *d, const char *name) +{ + int err; + + d->d = opendir(name); + if (!d->d) { + err = _MD_ERRNO(); + _PR_MD_MAP_OPENDIR_ERROR(err); + return PR_FAILURE; + } + return PR_SUCCESS; +} + +PRInt32 _MD_close_dir(_MDDir *d) +{ + int rv = 0, err; + + if (d->d) { + rv = closedir(d->d); + if (rv == -1) { + err = _MD_ERRNO(); + _PR_MD_MAP_CLOSEDIR_ERROR(err); + } + } + return rv; +} + +char * _MD_read_dir(_MDDir *d, PRIntn flags) +{ + struct dirent *de; + int err; + + for (;;) { + /* + * XXX: readdir() is not MT-safe. There is an MT-safe version + * readdir_r() on some systems. + */ + _MD_ERRNO() = 0; + de = readdir(d->d); + if (!de) { + err = _MD_ERRNO(); + _PR_MD_MAP_READDIR_ERROR(err); + return 0; + } + if ((flags & PR_SKIP_DOT) && + (de->d_name[0] == '.') && (de->d_name[1] == 0)) { + continue; + } + if ((flags & PR_SKIP_DOT_DOT) && + (de->d_name[0] == '.') && (de->d_name[1] == '.') && + (de->d_name[2] == 0)) { + continue; + } + if ((flags & PR_SKIP_HIDDEN) && (de->d_name[0] == '.')) { + continue; + } + break; + } + return de->d_name; +} + +PRInt32 _MD_delete(const char *name) +{ + PRInt32 rv, err; +#ifdef UNIXWARE + sigset_t set, oset; +#endif + +#ifdef UNIXWARE + sigfillset(&set); + sigprocmask(SIG_SETMASK, &set, &oset); +#endif + rv = unlink(name); +#ifdef UNIXWARE + sigprocmask(SIG_SETMASK, &oset, NULL); +#endif + if (rv == -1) { + err = _MD_ERRNO(); + _PR_MD_MAP_UNLINK_ERROR(err); + } + return(rv); +} + +PRInt32 _MD_rename(const char *from, const char *to) +{ + PRInt32 rv = -1, err; + + /* + ** This is trying to enforce the semantics of WINDOZE' rename + ** operation. That means one is not allowed to rename over top + ** of an existing file. Holding a lock across these two function + ** and the open function is known to be a bad idea, but .... + */ + if (NULL != _pr_unix_rename_lock) { + PR_Lock(_pr_unix_rename_lock); + } + if (0 == access(to, F_OK)) { + PR_SetError(PR_FILE_EXISTS_ERROR, 0); + } + else + { + rv = rename(from, to); + if (rv < 0) { + err = _MD_ERRNO(); + _PR_MD_MAP_RENAME_ERROR(err); + } + } + if (NULL != _pr_unix_rename_lock) { + PR_Unlock(_pr_unix_rename_lock); + } + return rv; +} + +PRInt32 _MD_access(const char *name, PRAccessHow how) +{ + PRInt32 rv, err; + int amode; + + switch (how) { + case PR_ACCESS_WRITE_OK: + amode = W_OK; + break; + case PR_ACCESS_READ_OK: + amode = R_OK; + break; + case PR_ACCESS_EXISTS: + amode = F_OK; + break; + default: + PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0); + rv = -1; + goto done; + } + rv = access(name, amode); + + if (rv < 0) { + err = _MD_ERRNO(); + _PR_MD_MAP_ACCESS_ERROR(err); + } + +done: + return(rv); +} + +PRInt32 _MD_mkdir(const char *name, PRIntn mode) +{ + int rv, err; + + /* + ** This lock is used to enforce rename semantics as described + ** in PR_Rename. Look there for more fun details. + */ + if (NULL !=_pr_unix_rename_lock) { + PR_Lock(_pr_unix_rename_lock); + } + rv = mkdir(name, mode); + if (rv < 0) { + err = _MD_ERRNO(); + _PR_MD_MAP_MKDIR_ERROR(err); + } + if (NULL !=_pr_unix_rename_lock) { + PR_Unlock(_pr_unix_rename_lock); + } + return rv; +} + +PRInt32 _MD_rmdir(const char *name) +{ + int rv, err; + + rv = rmdir(name); + if (rv == -1) { + err = _MD_ERRNO(); + _PR_MD_MAP_RMDIR_ERROR(err); + } + return rv; +} + +PRInt32 _MD_read(PRFileDesc *fd, void *buf, PRInt32 amount) +{ + PRThread *me = _PR_MD_CURRENT_THREAD(); + PRInt32 rv, err; +#ifndef _PR_USE_POLL + fd_set rd; +#else + struct pollfd pfd; +#endif /* _PR_USE_POLL */ + PRInt32 osfd = fd->secret->md.osfd; + +#ifndef _PR_USE_POLL + FD_ZERO(&rd); + FD_SET(osfd, &rd); +#else + pfd.fd = osfd; + pfd.events = POLLIN; +#endif /* _PR_USE_POLL */ + while ((rv = read(osfd,buf,amount)) == -1) { + err = _MD_ERRNO(); + if ((err == EAGAIN) || (err == EWOULDBLOCK)) { + if (fd->secret->nonblocking) { + break; + } + if (!_PR_IS_NATIVE_THREAD(me)) { + if ((rv = local_io_wait(osfd, _PR_UNIX_POLL_READ, + PR_INTERVAL_NO_TIMEOUT)) < 0) { + goto done; + } + } else { +#ifndef _PR_USE_POLL + while ((rv = _MD_SELECT(osfd + 1, &rd, NULL, NULL, NULL)) + == -1 && (err = _MD_ERRNO()) == EINTR) { + /* retry _MD_SELECT() if it is interrupted */ + } +#else /* _PR_USE_POLL */ + while ((rv = _MD_POLL(&pfd, 1, -1)) + == -1 && (err = _MD_ERRNO()) == EINTR) { + /* retry _MD_POLL() if it is interrupted */ + } +#endif /* _PR_USE_POLL */ + if (rv == -1) { + break; + } + } + if (_PR_PENDING_INTERRUPT(me)) { + break; + } + } else if ((err == EINTR) && (!_PR_PENDING_INTERRUPT(me))) { + continue; + } else { + break; + } + } + if (rv < 0) { + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + } else { + _PR_MD_MAP_READ_ERROR(err); + } + } +done: + return(rv); +} + +PRInt32 _MD_write(PRFileDesc *fd, const void *buf, PRInt32 amount) +{ + PRThread *me = _PR_MD_CURRENT_THREAD(); + PRInt32 rv, err; +#ifndef _PR_USE_POLL + fd_set wd; +#else + struct pollfd pfd; +#endif /* _PR_USE_POLL */ + PRInt32 osfd = fd->secret->md.osfd; + +#ifndef _PR_USE_POLL + FD_ZERO(&wd); + FD_SET(osfd, &wd); +#else + pfd.fd = osfd; + pfd.events = POLLOUT; +#endif /* _PR_USE_POLL */ + while ((rv = write(osfd,buf,amount)) == -1) { + err = _MD_ERRNO(); + if ((err == EAGAIN) || (err == EWOULDBLOCK)) { + if (fd->secret->nonblocking) { + break; + } + if (!_PR_IS_NATIVE_THREAD(me)) { + if ((rv = local_io_wait(osfd, _PR_UNIX_POLL_WRITE, + PR_INTERVAL_NO_TIMEOUT)) < 0) { + goto done; + } + } else { +#ifndef _PR_USE_POLL + while ((rv = _MD_SELECT(osfd + 1, NULL, &wd, NULL, NULL)) + == -1 && (err = _MD_ERRNO()) == EINTR) { + /* retry _MD_SELECT() if it is interrupted */ + } +#else /* _PR_USE_POLL */ + while ((rv = _MD_POLL(&pfd, 1, -1)) + == -1 && (err = _MD_ERRNO()) == EINTR) { + /* retry _MD_POLL() if it is interrupted */ + } +#endif /* _PR_USE_POLL */ + if (rv == -1) { + break; + } + } + if (_PR_PENDING_INTERRUPT(me)) { + break; + } + } else if ((err == EINTR) && (!_PR_PENDING_INTERRUPT(me))) { + continue; + } else { + break; + } + } + if (rv < 0) { + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + } else { + _PR_MD_MAP_WRITE_ERROR(err); + } + } +done: + return(rv); +} + +PRInt32 _MD_fsync(PRFileDesc *fd) +{ + PRInt32 rv, err; + + rv = fsync(fd->secret->md.osfd); + if (rv == -1) { + err = _MD_ERRNO(); + _PR_MD_MAP_FSYNC_ERROR(err); + } + return(rv); +} + +PRInt32 _MD_close(PRInt32 osfd) +{ + PRInt32 rv, err; + + rv = close(osfd); + if (rv == -1) { + err = _MD_ERRNO(); + _PR_MD_MAP_CLOSE_ERROR(err); + } + return(rv); +} + +PRInt32 _MD_socket(PRInt32 domain, PRInt32 type, PRInt32 proto) +{ + PRInt32 osfd, err; + + osfd = socket(domain, type, proto); + + if (osfd == -1) { + err = _MD_ERRNO(); + _PR_MD_MAP_SOCKET_ERROR(err); + return(osfd); + } + + return(osfd); +} + +PRInt32 _MD_socketavailable(PRFileDesc *fd) +{ + PRInt32 result; + + if (ioctl(fd->secret->md.osfd, FIONREAD, &result) < 0) { + _PR_MD_MAP_SOCKETAVAILABLE_ERROR(_MD_ERRNO()); + return -1; + } + return result; +} + +PRInt64 _MD_socketavailable64(PRFileDesc *fd) +{ + PRInt64 result; + LL_I2L(result, _MD_socketavailable(fd)); + return result; +} /* _MD_socketavailable64 */ + +#define READ_FD 1 +#define WRITE_FD 2 + +/* + * socket_io_wait -- + * + * wait for socket i/o, periodically checking for interrupt + * + * The first implementation uses select(), for platforms without + * poll(). The second (preferred) implementation uses poll(). + */ + +#ifndef _PR_USE_POLL + +static PRInt32 socket_io_wait(PRInt32 osfd, PRInt32 fd_type, + PRIntervalTime timeout) +{ + PRInt32 rv = -1; + struct timeval tv; + PRThread *me = _PR_MD_CURRENT_THREAD(); + PRIntervalTime epoch, now, elapsed, remaining; + PRBool wait_for_remaining; + PRInt32 syserror; + fd_set rd_wr; + + switch (timeout) { + case PR_INTERVAL_NO_WAIT: + PR_SetError(PR_IO_TIMEOUT_ERROR, 0); + break; + case PR_INTERVAL_NO_TIMEOUT: + /* + * This is a special case of the 'default' case below. + * Please see the comments there. + */ + tv.tv_sec = _PR_INTERRUPT_CHECK_INTERVAL_SECS; + tv.tv_usec = 0; + FD_ZERO(&rd_wr); + do { + FD_SET(osfd, &rd_wr); + if (fd_type == READ_FD) { + rv = _MD_SELECT(osfd + 1, &rd_wr, NULL, NULL, &tv); + } + else { + rv = _MD_SELECT(osfd + 1, NULL, &rd_wr, NULL, &tv); + } + if (rv == -1 && (syserror = _MD_ERRNO()) != EINTR) { + _PR_MD_MAP_SELECT_ERROR(syserror); + break; + } + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + rv = -1; + break; + } + } while (rv == 0 || (rv == -1 && syserror == EINTR)); + break; + default: + now = epoch = PR_IntervalNow(); + remaining = timeout; + FD_ZERO(&rd_wr); + do { + /* + * We block in _MD_SELECT for at most + * _PR_INTERRUPT_CHECK_INTERVAL_SECS seconds, + * so that there is an upper limit on the delay + * before the interrupt bit is checked. + */ + wait_for_remaining = PR_TRUE; + tv.tv_sec = PR_IntervalToSeconds(remaining); + if (tv.tv_sec > _PR_INTERRUPT_CHECK_INTERVAL_SECS) { + wait_for_remaining = PR_FALSE; + tv.tv_sec = _PR_INTERRUPT_CHECK_INTERVAL_SECS; + tv.tv_usec = 0; + } else { + tv.tv_usec = PR_IntervalToMicroseconds( + remaining - + PR_SecondsToInterval(tv.tv_sec)); + } + FD_SET(osfd, &rd_wr); + if (fd_type == READ_FD) { + rv = _MD_SELECT(osfd + 1, &rd_wr, NULL, NULL, &tv); + } + else { + rv = _MD_SELECT(osfd + 1, NULL, &rd_wr, NULL, &tv); + } + /* + * we don't consider EINTR a real error + */ + if (rv == -1 && (syserror = _MD_ERRNO()) != EINTR) { + _PR_MD_MAP_SELECT_ERROR(syserror); + break; + } + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + rv = -1; + break; + } + /* + * We loop again if _MD_SELECT timed out or got interrupted + * by a signal, and the timeout deadline has not passed yet. + */ + if (rv == 0 || (rv == -1 && syserror == EINTR)) { + /* + * If _MD_SELECT timed out, we know how much time + * we spent in blocking, so we can avoid a + * PR_IntervalNow() call. + */ + if (rv == 0) { + if (wait_for_remaining) { + now += remaining; + } else { + now += PR_SecondsToInterval(tv.tv_sec) + + PR_MicrosecondsToInterval(tv.tv_usec); + } + } else { + now = PR_IntervalNow(); + } + elapsed = (PRIntervalTime) (now - epoch); + if (elapsed >= timeout) { + PR_SetError(PR_IO_TIMEOUT_ERROR, 0); + rv = -1; + break; + } else { + remaining = timeout - elapsed; + } + } + } while (rv == 0 || (rv == -1 && syserror == EINTR)); + break; + } + return(rv); +} + +#else /* _PR_USE_POLL */ + +static PRInt32 socket_io_wait(PRInt32 osfd, PRInt32 fd_type, + PRIntervalTime timeout) +{ + PRInt32 rv = -1; + int msecs; + PRThread *me = _PR_MD_CURRENT_THREAD(); + PRIntervalTime epoch, now, elapsed, remaining; + PRBool wait_for_remaining; + PRInt32 syserror; + struct pollfd pfd; + + switch (timeout) { + case PR_INTERVAL_NO_WAIT: + PR_SetError(PR_IO_TIMEOUT_ERROR, 0); + break; + case PR_INTERVAL_NO_TIMEOUT: + /* + * This is a special case of the 'default' case below. + * Please see the comments there. + */ + msecs = _PR_INTERRUPT_CHECK_INTERVAL_SECS * 1000; + pfd.fd = osfd; + if (fd_type == READ_FD) { + pfd.events = POLLIN; + } else { + pfd.events = POLLOUT; + } + do { + rv = _MD_POLL(&pfd, 1, msecs); + if (rv == -1 && (syserror = _MD_ERRNO()) != EINTR) { + _PR_MD_MAP_POLL_ERROR(syserror); + break; + } + /* + * If POLLERR is set, don't process it; retry the operation + */ + if ((rv == 1) && (pfd.revents & (POLLHUP | POLLNVAL))) { + rv = -1; + _PR_MD_MAP_POLL_REVENTS_ERROR(pfd.revents); + break; + } + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + rv = -1; + break; + } + } while (rv == 0 || (rv == -1 && syserror == EINTR)); + break; + default: + now = epoch = PR_IntervalNow(); + remaining = timeout; + pfd.fd = osfd; + if (fd_type == READ_FD) { + pfd.events = POLLIN; + } else { + pfd.events = POLLOUT; + } + do { + /* + * We block in _MD_POLL for at most + * _PR_INTERRUPT_CHECK_INTERVAL_SECS seconds, + * so that there is an upper limit on the delay + * before the interrupt bit is checked. + */ + wait_for_remaining = PR_TRUE; + msecs = PR_IntervalToMilliseconds(remaining); + if (msecs > _PR_INTERRUPT_CHECK_INTERVAL_SECS * 1000) { + wait_for_remaining = PR_FALSE; + msecs = _PR_INTERRUPT_CHECK_INTERVAL_SECS * 1000; + } + rv = _MD_POLL(&pfd, 1, msecs); + /* + * we don't consider EINTR a real error + */ + if (rv == -1 && (syserror = _MD_ERRNO()) != EINTR) { + _PR_MD_MAP_POLL_ERROR(syserror); + break; + } + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + rv = -1; + break; + } + /* + * If POLLERR is set, don't process it; retry the operation + */ + if ((rv == 1) && (pfd.revents & (POLLHUP | POLLNVAL))) { + rv = -1; + _PR_MD_MAP_POLL_REVENTS_ERROR(pfd.revents); + break; + } + /* + * We loop again if _MD_POLL timed out or got interrupted + * by a signal, and the timeout deadline has not passed yet. + */ + if (rv == 0 || (rv == -1 && syserror == EINTR)) { + /* + * If _MD_POLL timed out, we know how much time + * we spent in blocking, so we can avoid a + * PR_IntervalNow() call. + */ + if (rv == 0) { + if (wait_for_remaining) { + now += remaining; + } else { + now += PR_MillisecondsToInterval(msecs); + } + } else { + now = PR_IntervalNow(); + } + elapsed = (PRIntervalTime) (now - epoch); + if (elapsed >= timeout) { + PR_SetError(PR_IO_TIMEOUT_ERROR, 0); + rv = -1; + break; + } else { + remaining = timeout - elapsed; + } + } + } while (rv == 0 || (rv == -1 && syserror == EINTR)); + break; + } + return(rv); +} + +#endif /* _PR_USE_POLL */ + +static PRInt32 local_io_wait( + PRInt32 osfd, + PRInt32 wait_flag, + PRIntervalTime timeout) +{ + _PRUnixPollDesc pd; + PRInt32 rv; + + PR_LOG(_pr_io_lm, PR_LOG_MIN, + ("waiting to %s on osfd=%d", + (wait_flag == _PR_UNIX_POLL_READ) ? "read" : "write", + osfd)); + + if (timeout == PR_INTERVAL_NO_WAIT) { + return 0; + } + + pd.osfd = osfd; + pd.in_flags = wait_flag; + pd.out_flags = 0; + + rv = _PR_WaitForMultipleFDs(&pd, 1, timeout); + + if (rv == 0) { + PR_SetError(PR_IO_TIMEOUT_ERROR, 0); + rv = -1; + } + return rv; +} + + +PRInt32 _MD_recv(PRFileDesc *fd, void *buf, PRInt32 amount, + PRInt32 flags, PRIntervalTime timeout) +{ + PRInt32 osfd = fd->secret->md.osfd; + PRInt32 rv, err; + PRThread *me = _PR_MD_CURRENT_THREAD(); + + /* + * Many OS's (Solaris, Unixware) have a broken recv which won't read + * from socketpairs. As long as we don't use flags on socketpairs, this + * is a decent fix. - mikep + */ +#if defined(UNIXWARE) || defined(SOLARIS) + while ((rv = read(osfd,buf,amount)) == -1) { +#else + while ((rv = recv(osfd,buf,amount,flags)) == -1) { +#endif + err = _MD_ERRNO(); + if ((err == EAGAIN) || (err == EWOULDBLOCK)) { + if (fd->secret->nonblocking) { + break; + } + if (!_PR_IS_NATIVE_THREAD(me)) { + if ((rv = local_io_wait(osfd,_PR_UNIX_POLL_READ,timeout)) < 0) { + goto done; + } + } else { + if ((rv = socket_io_wait(osfd, READ_FD, timeout)) < 0) { + goto done; + } + } + } else if ((err == EINTR) && (!_PR_PENDING_INTERRUPT(me))) { + continue; + } else { + break; + } + } + if (rv < 0) { + _PR_MD_MAP_RECV_ERROR(err); + } +done: + return(rv); +} + +PRInt32 _MD_recvfrom(PRFileDesc *fd, void *buf, PRInt32 amount, + PRIntn flags, PRNetAddr *addr, PRUint32 *addrlen, + PRIntervalTime timeout) +{ + PRInt32 osfd = fd->secret->md.osfd; + PRInt32 rv, err; + PRThread *me = _PR_MD_CURRENT_THREAD(); + + while ((*addrlen = PR_NETADDR_SIZE(addr)), + ((rv = recvfrom(osfd, buf, amount, flags, + (struct sockaddr *) addr, (_PRSockLen_t *)addrlen)) == -1)) { + err = _MD_ERRNO(); + if ((err == EAGAIN) || (err == EWOULDBLOCK)) { + if (fd->secret->nonblocking) { + break; + } + if (!_PR_IS_NATIVE_THREAD(me)) { + if ((rv = local_io_wait(osfd, _PR_UNIX_POLL_READ, timeout)) < 0) { + goto done; + } + } else { + if ((rv = socket_io_wait(osfd, READ_FD, timeout)) < 0) { + goto done; + } + } + } else if ((err == EINTR) && (!_PR_PENDING_INTERRUPT(me))) { + continue; + } else { + break; + } + } + if (rv < 0) { + _PR_MD_MAP_RECVFROM_ERROR(err); + } +done: +#ifdef _PR_HAVE_SOCKADDR_LEN + if (rv != -1) { + /* ignore the sa_len field of struct sockaddr */ + if (addr) { + addr->raw.family = ((struct sockaddr *) addr)->sa_family; + } + } +#endif /* _PR_HAVE_SOCKADDR_LEN */ + return(rv); +} + +PRInt32 _MD_send(PRFileDesc *fd, const void *buf, PRInt32 amount, + PRInt32 flags, PRIntervalTime timeout) +{ + PRInt32 osfd = fd->secret->md.osfd; + PRInt32 rv, err; + PRThread *me = _PR_MD_CURRENT_THREAD(); +#if defined(SOLARIS) + PRInt32 tmp_amount = amount; +#endif + + /* + * On pre-2.6 Solaris, send() is much slower than write(). + * On 2.6 and beyond, with in-kernel sockets, send() and + * write() are fairly equivalent in performance. + */ +#if defined(SOLARIS) + PR_ASSERT(0 == flags); + while ((rv = write(osfd,buf,tmp_amount)) == -1) { +#else + while ((rv = send(osfd,buf,amount,flags)) == -1) { +#endif + err = _MD_ERRNO(); + if ((err == EAGAIN) || (err == EWOULDBLOCK)) { + if (fd->secret->nonblocking) { + break; + } + if (!_PR_IS_NATIVE_THREAD(me)) { + if ((rv = local_io_wait(osfd, _PR_UNIX_POLL_WRITE, timeout)) < 0) { + goto done; + } + } else { + if ((rv = socket_io_wait(osfd, WRITE_FD, timeout))< 0) { + goto done; + } + } + } else if ((err == EINTR) && (!_PR_PENDING_INTERRUPT(me))) { + continue; + } else { +#if defined(SOLARIS) + /* + * The write system call has been reported to return the ERANGE + * error on occasion. Try to write in smaller chunks to workaround + * this bug. + */ + if (err == ERANGE) { + if (tmp_amount > 1) { + tmp_amount = tmp_amount/2; /* half the bytes */ + continue; + } + } +#endif + break; + } + } + /* + * optimization; if bytes sent is less than "amount" call + * select before returning. This is because it is likely that + * the next send() call will return EWOULDBLOCK. + */ + if ((!fd->secret->nonblocking) && (rv > 0) && (rv < amount) + && (timeout != PR_INTERVAL_NO_WAIT)) { + if (_PR_IS_NATIVE_THREAD(me)) { + if (socket_io_wait(osfd, WRITE_FD, timeout)< 0) { + rv = -1; + goto done; + } + } else { + if (local_io_wait(osfd, _PR_UNIX_POLL_WRITE, timeout) < 0) { + rv = -1; + goto done; + } + } + } + if (rv < 0) { + _PR_MD_MAP_SEND_ERROR(err); + } +done: + return(rv); +} + +PRInt32 _MD_sendto( + PRFileDesc *fd, const void *buf, PRInt32 amount, PRIntn flags, + const PRNetAddr *addr, PRUint32 addrlen, PRIntervalTime timeout) +{ + PRInt32 osfd = fd->secret->md.osfd; + PRInt32 rv, err; + PRThread *me = _PR_MD_CURRENT_THREAD(); +#ifdef _PR_HAVE_SOCKADDR_LEN + PRNetAddr addrCopy; + + addrCopy = *addr; + ((struct sockaddr *) &addrCopy)->sa_len = addrlen; + ((struct sockaddr *) &addrCopy)->sa_family = addr->raw.family; + + while ((rv = sendto(osfd, buf, amount, flags, + (struct sockaddr *) &addrCopy, addrlen)) == -1) { +#else + while ((rv = sendto(osfd, buf, amount, flags, + (struct sockaddr *) addr, addrlen)) == -1) { +#endif + err = _MD_ERRNO(); + if ((err == EAGAIN) || (err == EWOULDBLOCK)) { + if (fd->secret->nonblocking) { + break; + } + if (!_PR_IS_NATIVE_THREAD(me)) { + if ((rv = local_io_wait(osfd, _PR_UNIX_POLL_WRITE, timeout)) < 0) { + goto done; + } + } else { + if ((rv = socket_io_wait(osfd, WRITE_FD, timeout))< 0) { + goto done; + } + } + } else if ((err == EINTR) && (!_PR_PENDING_INTERRUPT(me))) { + continue; + } else { + break; + } + } + if (rv < 0) { + _PR_MD_MAP_SENDTO_ERROR(err); + } +done: + return(rv); +} + +PRInt32 _MD_writev( + PRFileDesc *fd, const PRIOVec *iov, + PRInt32 iov_size, PRIntervalTime timeout) +{ + PRInt32 rv, err; + PRThread *me = _PR_MD_CURRENT_THREAD(); + PRInt32 index, amount = 0; + PRInt32 osfd = fd->secret->md.osfd; + + /* + * Calculate the total number of bytes to be sent; needed for + * optimization later. + * We could avoid this if this number was passed in; but it is + * probably not a big deal because iov_size is usually small (less than + * 3) + */ + if (!fd->secret->nonblocking) { + for (index=0; index<iov_size; index++) { + amount += iov[index].iov_len; + } + } + + while ((rv = writev(osfd, (const struct iovec*)iov, iov_size)) == -1) { + err = _MD_ERRNO(); + if ((err == EAGAIN) || (err == EWOULDBLOCK)) { + if (fd->secret->nonblocking) { + break; + } + if (!_PR_IS_NATIVE_THREAD(me)) { + if ((rv = local_io_wait(osfd, _PR_UNIX_POLL_WRITE, timeout)) < 0) { + goto done; + } + } else { + if ((rv = socket_io_wait(osfd, WRITE_FD, timeout))<0) { + goto done; + } + } + } else if ((err == EINTR) && (!_PR_PENDING_INTERRUPT(me))) { + continue; + } else { + break; + } + } + /* + * optimization; if bytes sent is less than "amount" call + * select before returning. This is because it is likely that + * the next writev() call will return EWOULDBLOCK. + */ + if ((!fd->secret->nonblocking) && (rv > 0) && (rv < amount) + && (timeout != PR_INTERVAL_NO_WAIT)) { + if (_PR_IS_NATIVE_THREAD(me)) { + if (socket_io_wait(osfd, WRITE_FD, timeout) < 0) { + rv = -1; + goto done; + } + } else { + if (local_io_wait(osfd, _PR_UNIX_POLL_WRITE, timeout) < 0) { + rv = -1; + goto done; + } + } + } + if (rv < 0) { + _PR_MD_MAP_WRITEV_ERROR(err); + } +done: + return(rv); +} + +PRInt32 _MD_accept(PRFileDesc *fd, PRNetAddr *addr, + PRUint32 *addrlen, PRIntervalTime timeout) +{ + PRInt32 osfd = fd->secret->md.osfd; + PRInt32 rv, err; + PRThread *me = _PR_MD_CURRENT_THREAD(); + + while ((rv = accept(osfd, (struct sockaddr *) addr, + (_PRSockLen_t *)addrlen)) == -1) { + err = _MD_ERRNO(); + if ((err == EAGAIN) || (err == EWOULDBLOCK) || (err == ECONNABORTED)) { + if (fd->secret->nonblocking) { + break; + } + if (!_PR_IS_NATIVE_THREAD(me)) { + if ((rv = local_io_wait(osfd, _PR_UNIX_POLL_READ, timeout)) < 0) { + goto done; + } + } else { + if ((rv = socket_io_wait(osfd, READ_FD, timeout)) < 0) { + goto done; + } + } + } else if ((err == EINTR) && (!_PR_PENDING_INTERRUPT(me))) { + continue; + } else { + break; + } + } + if (rv < 0) { + _PR_MD_MAP_ACCEPT_ERROR(err); + } +done: +#ifdef _PR_HAVE_SOCKADDR_LEN + if (rv != -1) { + /* ignore the sa_len field of struct sockaddr */ + if (addr) { + addr->raw.family = ((struct sockaddr *) addr)->sa_family; + } + } +#endif /* _PR_HAVE_SOCKADDR_LEN */ + return(rv); +} + +extern int _connect (int s, const struct sockaddr *name, int namelen); +PRInt32 _MD_connect( + PRFileDesc *fd, const PRNetAddr *addr, PRUint32 addrlen, PRIntervalTime timeout) +{ + PRInt32 rv, err; + PRThread *me = _PR_MD_CURRENT_THREAD(); + PRInt32 osfd = fd->secret->md.osfd; +#ifdef _PR_HAVE_SOCKADDR_LEN + PRNetAddr addrCopy; + + addrCopy = *addr; + ((struct sockaddr *) &addrCopy)->sa_len = addrlen; + ((struct sockaddr *) &addrCopy)->sa_family = addr->raw.family; +#endif + + /* + * We initiate the connection setup by making a nonblocking connect() + * call. If the connect() call fails, there are two cases we handle + * specially: + * 1. The connect() call was interrupted by a signal. In this case + * we simply retry connect(). + * 2. The NSPR socket is nonblocking and connect() fails with + * EINPROGRESS. We first wait until the socket becomes writable. + * Then we try to find out whether the connection setup succeeded + * or failed. + */ + +retry: +#ifdef _PR_HAVE_SOCKADDR_LEN + if ((rv = connect(osfd, (struct sockaddr *)&addrCopy, addrlen)) == -1) { +#else + if ((rv = connect(osfd, (struct sockaddr *)addr, addrlen)) == -1) { +#endif + err = _MD_ERRNO(); + + if (err == EINTR) { + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError( PR_PENDING_INTERRUPT_ERROR, 0); + return -1; + } + goto retry; + } + + if (!fd->secret->nonblocking && (err == EINPROGRESS)) { + if (!_PR_IS_NATIVE_THREAD(me)) { + + if ((rv = local_io_wait(osfd, _PR_UNIX_POLL_WRITE, timeout)) < 0) { + return -1; + } + } else { + /* + * socket_io_wait() may return -1 or 1. + */ + + rv = socket_io_wait(osfd, WRITE_FD, timeout); + if (rv == -1) { + return -1; + } + } + + PR_ASSERT(rv == 1); + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError( PR_PENDING_INTERRUPT_ERROR, 0); + return -1; + } + err = _MD_unix_get_nonblocking_connect_error(osfd); + if (err != 0) { + _PR_MD_MAP_CONNECT_ERROR(err); + return -1; + } + return 0; + } + + _PR_MD_MAP_CONNECT_ERROR(err); + } + + return rv; +} /* _MD_connect */ + +PRInt32 _MD_bind(PRFileDesc *fd, const PRNetAddr *addr, PRUint32 addrlen) +{ + PRInt32 rv, err; +#ifdef _PR_HAVE_SOCKADDR_LEN + PRNetAddr addrCopy; + + addrCopy = *addr; + ((struct sockaddr *) &addrCopy)->sa_len = addrlen; + ((struct sockaddr *) &addrCopy)->sa_family = addr->raw.family; + rv = bind(fd->secret->md.osfd, (struct sockaddr *) &addrCopy, (int )addrlen); +#else + rv = bind(fd->secret->md.osfd, (struct sockaddr *) addr, (int )addrlen); +#endif + if (rv < 0) { + err = _MD_ERRNO(); + _PR_MD_MAP_BIND_ERROR(err); + } + return(rv); +} + +PRInt32 _MD_listen(PRFileDesc *fd, PRIntn backlog) +{ + PRInt32 rv, err; + + rv = listen(fd->secret->md.osfd, backlog); + if (rv < 0) { + err = _MD_ERRNO(); + _PR_MD_MAP_LISTEN_ERROR(err); + } + return(rv); +} + +PRInt32 _MD_shutdown(PRFileDesc *fd, PRIntn how) +{ + PRInt32 rv, err; + + rv = shutdown(fd->secret->md.osfd, how); + if (rv < 0) { + err = _MD_ERRNO(); + _PR_MD_MAP_SHUTDOWN_ERROR(err); + } + return(rv); +} + +PRInt32 _MD_socketpair(int af, int type, int flags, + PRInt32 *osfd) +{ + PRInt32 rv, err; + + rv = socketpair(af, type, flags, osfd); + if (rv < 0) { + err = _MD_ERRNO(); + _PR_MD_MAP_SOCKETPAIR_ERROR(err); + } + return rv; +} + +PRStatus _MD_getsockname(PRFileDesc *fd, PRNetAddr *addr, + PRUint32 *addrlen) +{ + PRInt32 rv, err; + + rv = getsockname(fd->secret->md.osfd, + (struct sockaddr *) addr, (_PRSockLen_t *)addrlen); +#ifdef _PR_HAVE_SOCKADDR_LEN + if (rv == 0) { + /* ignore the sa_len field of struct sockaddr */ + if (addr) { + addr->raw.family = ((struct sockaddr *) addr)->sa_family; + } + } +#endif /* _PR_HAVE_SOCKADDR_LEN */ + if (rv < 0) { + err = _MD_ERRNO(); + _PR_MD_MAP_GETSOCKNAME_ERROR(err); + } + return rv==0?PR_SUCCESS:PR_FAILURE; +} + +PRStatus _MD_getpeername(PRFileDesc *fd, PRNetAddr *addr, + PRUint32 *addrlen) +{ + PRInt32 rv, err; + + rv = getpeername(fd->secret->md.osfd, + (struct sockaddr *) addr, (_PRSockLen_t *)addrlen); +#ifdef _PR_HAVE_SOCKADDR_LEN + if (rv == 0) { + /* ignore the sa_len field of struct sockaddr */ + if (addr) { + addr->raw.family = ((struct sockaddr *) addr)->sa_family; + } + } +#endif /* _PR_HAVE_SOCKADDR_LEN */ + if (rv < 0) { + err = _MD_ERRNO(); + _PR_MD_MAP_GETPEERNAME_ERROR(err); + } + return rv==0?PR_SUCCESS:PR_FAILURE; +} + +PRStatus _MD_getsockopt(PRFileDesc *fd, PRInt32 level, + PRInt32 optname, char* optval, PRInt32* optlen) +{ + PRInt32 rv, err; + + rv = getsockopt(fd->secret->md.osfd, level, optname, optval, (_PRSockLen_t *)optlen); + if (rv < 0) { + err = _MD_ERRNO(); + _PR_MD_MAP_GETSOCKOPT_ERROR(err); + } + return rv==0?PR_SUCCESS:PR_FAILURE; +} + +PRStatus _MD_setsockopt(PRFileDesc *fd, PRInt32 level, + PRInt32 optname, const char* optval, PRInt32 optlen) +{ + PRInt32 rv, err; + + rv = setsockopt(fd->secret->md.osfd, level, optname, optval, optlen); + if (rv < 0) { + err = _MD_ERRNO(); + _PR_MD_MAP_SETSOCKOPT_ERROR(err); + } + return rv==0?PR_SUCCESS:PR_FAILURE; +} + +PRStatus _MD_set_fd_inheritable(PRFileDesc *fd, PRBool inheritable) +{ + int rv; + + rv = fcntl(fd->secret->md.osfd, F_SETFD, inheritable ? 0 : FD_CLOEXEC); + if (-1 == rv) { + PR_SetError(PR_UNKNOWN_ERROR, _MD_ERRNO()); + return PR_FAILURE; + } + return PR_SUCCESS; +} + +void _MD_init_fd_inheritable(PRFileDesc *fd, PRBool imported) +{ + if (imported) { + fd->secret->inheritable = _PR_TRI_UNKNOWN; + } else { + /* By default, a Unix fd is not closed on exec. */ +#ifdef DEBUG + { + int flags = fcntl(fd->secret->md.osfd, F_GETFD, 0); + PR_ASSERT(0 == flags); + } +#endif + fd->secret->inheritable = _PR_TRI_TRUE; + } +} + +/************************************************************************/ +#if !defined(_PR_USE_POLL) + +/* +** Scan through io queue and find any bad fd's that triggered the error +** from _MD_SELECT +*/ +static void FindBadFDs(void) +{ + PRCList *q; + PRThread *me = _MD_CURRENT_THREAD(); + + PR_ASSERT(!_PR_IS_NATIVE_THREAD(me)); + q = (_PR_IOQ(me->cpu)).next; + _PR_IOQ_MAX_OSFD(me->cpu) = -1; + _PR_IOQ_TIMEOUT(me->cpu) = PR_INTERVAL_NO_TIMEOUT; + while (q != &_PR_IOQ(me->cpu)) { + PRPollQueue *pq = _PR_POLLQUEUE_PTR(q); + PRBool notify = PR_FALSE; + _PRUnixPollDesc *pds = pq->pds; + _PRUnixPollDesc *epds = pds + pq->npds; + PRInt32 pq_max_osfd = -1; + + q = q->next; + for (; pds < epds; pds++) { + PRInt32 osfd = pds->osfd; + pds->out_flags = 0; + PR_ASSERT(osfd >= 0 || pds->in_flags == 0); + if (pds->in_flags == 0) { + continue; /* skip this fd */ + } + if (fcntl(osfd, F_GETFL, 0) == -1) { + /* Found a bad descriptor, remove it from the fd_sets. */ + PR_LOG(_pr_io_lm, PR_LOG_MAX, + ("file descriptor %d is bad", osfd)); + pds->out_flags = _PR_UNIX_POLL_NVAL; + notify = PR_TRUE; + } + if (osfd > pq_max_osfd) { + pq_max_osfd = osfd; + } + } + + if (notify) { + PRIntn pri; + PR_REMOVE_LINK(&pq->links); + pq->on_ioq = PR_FALSE; + + /* + * Decrement the count of descriptors for each desciptor/event + * because this I/O request is being removed from the + * ioq + */ + pds = pq->pds; + for (; pds < epds; pds++) { + PRInt32 osfd = pds->osfd; + PRInt16 in_flags = pds->in_flags; + PR_ASSERT(osfd >= 0 || in_flags == 0); + if (in_flags & _PR_UNIX_POLL_READ) { + if (--(_PR_FD_READ_CNT(me->cpu))[osfd] == 0) { + FD_CLR(osfd, &_PR_FD_READ_SET(me->cpu)); + } + } + if (in_flags & _PR_UNIX_POLL_WRITE) { + if (--(_PR_FD_WRITE_CNT(me->cpu))[osfd] == 0) { + FD_CLR(osfd, &_PR_FD_WRITE_SET(me->cpu)); + } + } + if (in_flags & _PR_UNIX_POLL_EXCEPT) { + if (--(_PR_FD_EXCEPTION_CNT(me->cpu))[osfd] == 0) { + FD_CLR(osfd, &_PR_FD_EXCEPTION_SET(me->cpu)); + } + } + } + + _PR_THREAD_LOCK(pq->thr); + if (pq->thr->flags & (_PR_ON_PAUSEQ|_PR_ON_SLEEPQ)) { + _PRCPU *cpu = pq->thr->cpu; + _PR_SLEEPQ_LOCK(pq->thr->cpu); + _PR_DEL_SLEEPQ(pq->thr, PR_TRUE); + _PR_SLEEPQ_UNLOCK(pq->thr->cpu); + + if (pq->thr->flags & _PR_SUSPENDING) { + /* + * set thread state to SUSPENDED; + * a Resume operation on the thread + * will move it to the runQ + */ + pq->thr->state = _PR_SUSPENDED; + _PR_MISCQ_LOCK(pq->thr->cpu); + _PR_ADD_SUSPENDQ(pq->thr, pq->thr->cpu); + _PR_MISCQ_UNLOCK(pq->thr->cpu); + } else { + pri = pq->thr->priority; + pq->thr->state = _PR_RUNNABLE; + + _PR_RUNQ_LOCK(cpu); + _PR_ADD_RUNQ(pq->thr, cpu, pri); + _PR_RUNQ_UNLOCK(cpu); + } + } + _PR_THREAD_UNLOCK(pq->thr); + } else { + if (pq->timeout < _PR_IOQ_TIMEOUT(me->cpu)) { + _PR_IOQ_TIMEOUT(me->cpu) = pq->timeout; + } + if (_PR_IOQ_MAX_OSFD(me->cpu) < pq_max_osfd) { + _PR_IOQ_MAX_OSFD(me->cpu) = pq_max_osfd; + } + } + } + if (_PR_IS_NATIVE_THREAD_SUPPORTED()) { + if (_PR_IOQ_MAX_OSFD(me->cpu) < _pr_md_pipefd[0]) { + _PR_IOQ_MAX_OSFD(me->cpu) = _pr_md_pipefd[0]; + } + } +} +#endif /* !defined(_PR_USE_POLL) */ + +/************************************************************************/ + +/* +** Called by the scheduler when there is nothing to do. This means that +** all threads are blocked on some monitor somewhere. +** +** Note: this code doesn't release the scheduler lock. +*/ +/* +** Pause the current CPU. longjmp to the cpu's pause stack +** +** This must be called with the scheduler locked +*/ +void _MD_PauseCPU(PRIntervalTime ticks) +{ + PRThread *me = _MD_CURRENT_THREAD(); +#ifdef _PR_USE_POLL + int timeout; + struct pollfd *pollfds; /* an array of pollfd structures */ + struct pollfd *pollfdPtr; /* a pointer that steps through the array */ + unsigned long npollfds; /* number of pollfd structures in array */ + unsigned long pollfds_size; + int nfd; /* to hold the return value of poll() */ +#else + struct timeval timeout, *tvp; + fd_set r, w, e; + fd_set *rp, *wp, *ep; + PRInt32 max_osfd, nfd; +#endif /* _PR_USE_POLL */ + PRInt32 rv; + PRCList *q; + PRUint32 min_timeout; + sigset_t oldset; + + PR_ASSERT(_PR_MD_GET_INTSOFF() != 0); + + _PR_MD_IOQ_LOCK(); + +#ifdef _PR_USE_POLL + /* Build up the pollfd structure array to wait on */ + + /* Find out how many pollfd structures are needed */ + npollfds = _PR_IOQ_OSFD_CNT(me->cpu); + PR_ASSERT(npollfds >= 0); + + /* + * We use a pipe to wake up a native thread. An fd is needed + * for the pipe and we poll it for reading. + */ + if (_PR_IS_NATIVE_THREAD_SUPPORTED()) { + npollfds++; + } + + /* + * if the cpu's pollfd array is not big enough, release it and allocate a new one + */ + if (npollfds > _PR_IOQ_POLLFDS_SIZE(me->cpu)) { + if (_PR_IOQ_POLLFDS(me->cpu) != NULL) { + PR_DELETE(_PR_IOQ_POLLFDS(me->cpu)); + } + pollfds_size = PR_MAX(_PR_IOQ_MIN_POLLFDS_SIZE(me->cpu), npollfds); + pollfds = (struct pollfd *) PR_MALLOC(pollfds_size * sizeof(struct pollfd)); + _PR_IOQ_POLLFDS(me->cpu) = pollfds; + _PR_IOQ_POLLFDS_SIZE(me->cpu) = pollfds_size; + } else { + pollfds = _PR_IOQ_POLLFDS(me->cpu); + } + pollfdPtr = pollfds; + + /* + * If we need to poll the pipe for waking up a native thread, + * the pipe's fd is the first element in the pollfds array. + */ + if (_PR_IS_NATIVE_THREAD_SUPPORTED()) { + pollfdPtr->fd = _pr_md_pipefd[0]; + pollfdPtr->events = POLLIN; + pollfdPtr++; + } + + min_timeout = PR_INTERVAL_NO_TIMEOUT; + for (q = _PR_IOQ(me->cpu).next; q != &_PR_IOQ(me->cpu); q = q->next) { + PRPollQueue *pq = _PR_POLLQUEUE_PTR(q); + _PRUnixPollDesc *pds = pq->pds; + _PRUnixPollDesc *epds = pds + pq->npds; + + if (pq->timeout < min_timeout) { + min_timeout = pq->timeout; + } + for (; pds < epds; pds++, pollfdPtr++) { + /* + * Assert that the pollfdPtr pointer does not go + * beyond the end of the pollfds array + */ + PR_ASSERT(pollfdPtr < pollfds + npollfds); + pollfdPtr->fd = pds->osfd; + /* direct copy of poll flags */ + pollfdPtr->events = pds->in_flags; + } + } + _PR_IOQ_TIMEOUT(me->cpu) = min_timeout; +#else + /* + * assigment of fd_sets + */ + r = _PR_FD_READ_SET(me->cpu); + w = _PR_FD_WRITE_SET(me->cpu); + e = _PR_FD_EXCEPTION_SET(me->cpu); + + rp = &r; + wp = &w; + ep = &e; + + max_osfd = _PR_IOQ_MAX_OSFD(me->cpu) + 1; + min_timeout = _PR_IOQ_TIMEOUT(me->cpu); +#endif /* _PR_USE_POLL */ + /* + ** Compute the minimum timeout value: make it the smaller of the + ** timeouts specified by the i/o pollers or the timeout of the first + ** sleeping thread. + */ + q = _PR_SLEEPQ(me->cpu).next; + + if (q != &_PR_SLEEPQ(me->cpu)) { + PRThread *t = _PR_THREAD_PTR(q); + + if (t->sleep < min_timeout) { + min_timeout = t->sleep; + } + } + if (min_timeout > ticks) { + min_timeout = ticks; + } + +#ifdef _PR_USE_POLL + if (min_timeout == PR_INTERVAL_NO_TIMEOUT) { + timeout = -1; + } + else { + timeout = PR_IntervalToMilliseconds(min_timeout); + } +#else + if (min_timeout == PR_INTERVAL_NO_TIMEOUT) { + tvp = NULL; + } else { + timeout.tv_sec = PR_IntervalToSeconds(min_timeout); + timeout.tv_usec = PR_IntervalToMicroseconds(min_timeout) + % PR_USEC_PER_SEC; + tvp = &timeout; + } +#endif /* _PR_USE_POLL */ + + _PR_MD_IOQ_UNLOCK(); + _MD_CHECK_FOR_EXIT(); + /* + * check for i/o operations + */ +#ifndef _PR_NO_CLOCK_TIMER + /* + * Disable the clock interrupts while we are in select, if clock interrupts + * are enabled. Otherwise, when the select/poll calls are interrupted, the + * timer value starts ticking from zero again when the system call is restarted. + */ + if (!_nspr_noclock) { + PR_ASSERT(sigismember(&timer_set, SIGALRM)); + } + sigprocmask(SIG_BLOCK, &timer_set, &oldset); +#endif /* !_PR_NO_CLOCK_TIMER */ + +#ifndef _PR_USE_POLL + PR_ASSERT(FD_ISSET(_pr_md_pipefd[0],rp)); + nfd = _MD_SELECT(max_osfd, rp, wp, ep, tvp); +#else + nfd = _MD_POLL(pollfds, npollfds, timeout); +#endif /* !_PR_USE_POLL */ + +#ifndef _PR_NO_CLOCK_TIMER + if (!_nspr_noclock) { + sigprocmask(SIG_SETMASK, &oldset, 0); + } +#endif /* !_PR_NO_CLOCK_TIMER */ + + _MD_CHECK_FOR_EXIT(); + + _PR_MD_primordial_cpu(); + + _PR_MD_IOQ_LOCK(); + /* + ** Notify monitors that are associated with the selected descriptors. + */ +#ifdef _PR_USE_POLL + if (nfd > 0) { + pollfdPtr = pollfds; + if (_PR_IS_NATIVE_THREAD_SUPPORTED()) { + /* + * Assert that the pipe is the first element in the + * pollfds array. + */ + PR_ASSERT(pollfds[0].fd == _pr_md_pipefd[0]); + if ((pollfds[0].revents & POLLIN) && (nfd == 1)) { + /* + * woken up by another thread; read all the data + * in the pipe to empty the pipe + */ + while ((rv = read(_pr_md_pipefd[0], _pr_md_pipebuf, + PIPE_BUF)) == PIPE_BUF) { + } + PR_ASSERT((rv > 0) || ((rv == -1) && (errno == EAGAIN))); + } + pollfdPtr++; + } + for (q = _PR_IOQ(me->cpu).next; q != &_PR_IOQ(me->cpu); q = q->next) { + PRPollQueue *pq = _PR_POLLQUEUE_PTR(q); + PRBool notify = PR_FALSE; + _PRUnixPollDesc *pds = pq->pds; + _PRUnixPollDesc *epds = pds + pq->npds; + + for (; pds < epds; pds++, pollfdPtr++) { + /* + * Assert that the pollfdPtr pointer does not go beyond + * the end of the pollfds array. + */ + PR_ASSERT(pollfdPtr < pollfds + npollfds); + /* + * Assert that the fd's in the pollfds array (stepped + * through by pollfdPtr) are in the same order as + * the fd's in _PR_IOQ() (stepped through by q and pds). + * This is how the pollfds array was created earlier. + */ + PR_ASSERT(pollfdPtr->fd == pds->osfd); + pds->out_flags = pollfdPtr->revents; + /* Negative fd's are ignored by poll() */ + if (pds->osfd >= 0 && pds->out_flags) { + notify = PR_TRUE; + } + } + if (notify) { + PRIntn pri; + PRThread *thred; + + PR_REMOVE_LINK(&pq->links); + pq->on_ioq = PR_FALSE; + + thred = pq->thr; + _PR_THREAD_LOCK(thred); + if (pq->thr->flags & (_PR_ON_PAUSEQ|_PR_ON_SLEEPQ)) { + _PRCPU *cpu = pq->thr->cpu; + _PR_SLEEPQ_LOCK(pq->thr->cpu); + _PR_DEL_SLEEPQ(pq->thr, PR_TRUE); + _PR_SLEEPQ_UNLOCK(pq->thr->cpu); + + if (pq->thr->flags & _PR_SUSPENDING) { + /* + * set thread state to SUSPENDED; + * a Resume operation on the thread + * will move it to the runQ + */ + pq->thr->state = _PR_SUSPENDED; + _PR_MISCQ_LOCK(pq->thr->cpu); + _PR_ADD_SUSPENDQ(pq->thr, pq->thr->cpu); + _PR_MISCQ_UNLOCK(pq->thr->cpu); + } else { + pri = pq->thr->priority; + pq->thr->state = _PR_RUNNABLE; + + _PR_RUNQ_LOCK(cpu); + _PR_ADD_RUNQ(pq->thr, cpu, pri); + _PR_RUNQ_UNLOCK(cpu); + if (_pr_md_idle_cpus > 1) { + _PR_MD_WAKEUP_WAITER(thred); + } + } + } + _PR_THREAD_UNLOCK(thred); + _PR_IOQ_OSFD_CNT(me->cpu) -= pq->npds; + PR_ASSERT(_PR_IOQ_OSFD_CNT(me->cpu) >= 0); + } + } + } else if (nfd == -1) { + PR_LOG(_pr_io_lm, PR_LOG_MAX, ("poll() failed with errno %d", errno)); + } + +#else + if (nfd > 0) { + q = _PR_IOQ(me->cpu).next; + _PR_IOQ_MAX_OSFD(me->cpu) = -1; + _PR_IOQ_TIMEOUT(me->cpu) = PR_INTERVAL_NO_TIMEOUT; + while (q != &_PR_IOQ(me->cpu)) { + PRPollQueue *pq = _PR_POLLQUEUE_PTR(q); + PRBool notify = PR_FALSE; + _PRUnixPollDesc *pds = pq->pds; + _PRUnixPollDesc *epds = pds + pq->npds; + PRInt32 pq_max_osfd = -1; + + q = q->next; + for (; pds < epds; pds++) { + PRInt32 osfd = pds->osfd; + PRInt16 in_flags = pds->in_flags; + PRInt16 out_flags = 0; + PR_ASSERT(osfd >= 0 || in_flags == 0); + if ((in_flags & _PR_UNIX_POLL_READ) && FD_ISSET(osfd, rp)) { + out_flags |= _PR_UNIX_POLL_READ; + } + if ((in_flags & _PR_UNIX_POLL_WRITE) && FD_ISSET(osfd, wp)) { + out_flags |= _PR_UNIX_POLL_WRITE; + } + if ((in_flags & _PR_UNIX_POLL_EXCEPT) && FD_ISSET(osfd, ep)) { + out_flags |= _PR_UNIX_POLL_EXCEPT; + } + pds->out_flags = out_flags; + if (out_flags) { + notify = PR_TRUE; + } + if (osfd > pq_max_osfd) { + pq_max_osfd = osfd; + } + } + if (notify == PR_TRUE) { + PRIntn pri; + PRThread *thred; + + PR_REMOVE_LINK(&pq->links); + pq->on_ioq = PR_FALSE; + + /* + * Decrement the count of descriptors for each desciptor/event + * because this I/O request is being removed from the + * ioq + */ + pds = pq->pds; + for (; pds < epds; pds++) { + PRInt32 osfd = pds->osfd; + PRInt16 in_flags = pds->in_flags; + PR_ASSERT(osfd >= 0 || in_flags == 0); + if (in_flags & _PR_UNIX_POLL_READ) { + if (--(_PR_FD_READ_CNT(me->cpu))[osfd] == 0) { + FD_CLR(osfd, &_PR_FD_READ_SET(me->cpu)); + } + } + if (in_flags & _PR_UNIX_POLL_WRITE) { + if (--(_PR_FD_WRITE_CNT(me->cpu))[osfd] == 0) { + FD_CLR(osfd, &_PR_FD_WRITE_SET(me->cpu)); + } + } + if (in_flags & _PR_UNIX_POLL_EXCEPT) { + if (--(_PR_FD_EXCEPTION_CNT(me->cpu))[osfd] == 0) { + FD_CLR(osfd, &_PR_FD_EXCEPTION_SET(me->cpu)); + } + } + } + + /* + * Because this thread can run on a different cpu right + * after being added to the run queue, do not dereference + * pq + */ + thred = pq->thr; + _PR_THREAD_LOCK(thred); + if (pq->thr->flags & (_PR_ON_PAUSEQ|_PR_ON_SLEEPQ)) { + _PRCPU *cpu = thred->cpu; + _PR_SLEEPQ_LOCK(pq->thr->cpu); + _PR_DEL_SLEEPQ(pq->thr, PR_TRUE); + _PR_SLEEPQ_UNLOCK(pq->thr->cpu); + + if (pq->thr->flags & _PR_SUSPENDING) { + /* + * set thread state to SUSPENDED; + * a Resume operation on the thread + * will move it to the runQ + */ + pq->thr->state = _PR_SUSPENDED; + _PR_MISCQ_LOCK(pq->thr->cpu); + _PR_ADD_SUSPENDQ(pq->thr, pq->thr->cpu); + _PR_MISCQ_UNLOCK(pq->thr->cpu); + } else { + pri = pq->thr->priority; + pq->thr->state = _PR_RUNNABLE; + + pq->thr->cpu = cpu; + _PR_RUNQ_LOCK(cpu); + _PR_ADD_RUNQ(pq->thr, cpu, pri); + _PR_RUNQ_UNLOCK(cpu); + if (_pr_md_idle_cpus > 1) { + _PR_MD_WAKEUP_WAITER(thred); + } + } + } + _PR_THREAD_UNLOCK(thred); + } else { + if (pq->timeout < _PR_IOQ_TIMEOUT(me->cpu)) { + _PR_IOQ_TIMEOUT(me->cpu) = pq->timeout; + } + if (_PR_IOQ_MAX_OSFD(me->cpu) < pq_max_osfd) { + _PR_IOQ_MAX_OSFD(me->cpu) = pq_max_osfd; + } + } + } + if (_PR_IS_NATIVE_THREAD_SUPPORTED()) { + if ((FD_ISSET(_pr_md_pipefd[0], rp)) && (nfd == 1)) { + /* + * woken up by another thread; read all the data + * in the pipe to empty the pipe + */ + while ((rv = + read(_pr_md_pipefd[0], _pr_md_pipebuf, PIPE_BUF)) + == PIPE_BUF) { + } + PR_ASSERT((rv > 0) || + ((rv == -1) && (errno == EAGAIN))); + } + if (_PR_IOQ_MAX_OSFD(me->cpu) < _pr_md_pipefd[0]) { + _PR_IOQ_MAX_OSFD(me->cpu) = _pr_md_pipefd[0]; + } + } + } else if (nfd < 0) { + if (errno == EBADF) { + FindBadFDs(); + } else { + PR_LOG(_pr_io_lm, PR_LOG_MAX, ("select() failed with errno %d", + errno)); + } + } else { + PR_ASSERT(nfd == 0); + /* + * compute the new value of _PR_IOQ_TIMEOUT + */ + q = _PR_IOQ(me->cpu).next; + _PR_IOQ_MAX_OSFD(me->cpu) = -1; + _PR_IOQ_TIMEOUT(me->cpu) = PR_INTERVAL_NO_TIMEOUT; + while (q != &_PR_IOQ(me->cpu)) { + PRPollQueue *pq = _PR_POLLQUEUE_PTR(q); + _PRUnixPollDesc *pds = pq->pds; + _PRUnixPollDesc *epds = pds + pq->npds; + PRInt32 pq_max_osfd = -1; + + q = q->next; + for (; pds < epds; pds++) { + if (pds->osfd > pq_max_osfd) { + pq_max_osfd = pds->osfd; + } + } + if (pq->timeout < _PR_IOQ_TIMEOUT(me->cpu)) { + _PR_IOQ_TIMEOUT(me->cpu) = pq->timeout; + } + if (_PR_IOQ_MAX_OSFD(me->cpu) < pq_max_osfd) { + _PR_IOQ_MAX_OSFD(me->cpu) = pq_max_osfd; + } + } + if (_PR_IS_NATIVE_THREAD_SUPPORTED()) { + if (_PR_IOQ_MAX_OSFD(me->cpu) < _pr_md_pipefd[0]) { + _PR_IOQ_MAX_OSFD(me->cpu) = _pr_md_pipefd[0]; + } + } + } +#endif /* _PR_USE_POLL */ + _PR_MD_IOQ_UNLOCK(); +} + +void _MD_Wakeup_CPUs() +{ + PRInt32 rv, data; + + data = 0; + rv = write(_pr_md_pipefd[1], &data, 1); + + while ((rv < 0) && (errno == EAGAIN)) { + /* + * pipe full, read all data in pipe to empty it + */ + while ((rv = + read(_pr_md_pipefd[0], _pr_md_pipebuf, PIPE_BUF)) + == PIPE_BUF) { + } + PR_ASSERT((rv > 0) || + ((rv == -1) && (errno == EAGAIN))); + rv = write(_pr_md_pipefd[1], &data, 1); + } +} + + +void _MD_InitCPUS() +{ + PRInt32 rv, flags; + PRThread *me = _MD_CURRENT_THREAD(); + + rv = pipe(_pr_md_pipefd); + PR_ASSERT(rv == 0); + _PR_IOQ_MAX_OSFD(me->cpu) = _pr_md_pipefd[0]; +#ifndef _PR_USE_POLL + FD_SET(_pr_md_pipefd[0], &_PR_FD_READ_SET(me->cpu)); +#endif + + flags = fcntl(_pr_md_pipefd[0], F_GETFL, 0); + fcntl(_pr_md_pipefd[0], F_SETFL, flags | O_NONBLOCK); + flags = fcntl(_pr_md_pipefd[1], F_GETFL, 0); + fcntl(_pr_md_pipefd[1], F_SETFL, flags | O_NONBLOCK); +} + +/* +** Unix SIGALRM (clock) signal handler +*/ +static void ClockInterruptHandler() +{ + int olderrno; + PRUintn pri; + _PRCPU *cpu = _PR_MD_CURRENT_CPU(); + PRThread *me = _MD_CURRENT_THREAD(); + +#ifdef SOLARIS + if (!me || _PR_IS_NATIVE_THREAD(me)) { + _pr_primordialCPU->u.missed[_pr_primordialCPU->where] |= _PR_MISSED_CLOCK; + return; + } +#endif + + if (_PR_MD_GET_INTSOFF() != 0) { + cpu->u.missed[cpu->where] |= _PR_MISSED_CLOCK; + return; + } + _PR_MD_SET_INTSOFF(1); + + olderrno = errno; + _PR_ClockInterrupt(); + errno = olderrno; + + /* + ** If the interrupt wants a resched or if some other thread at + ** the same priority needs the cpu, reschedule. + */ + pri = me->priority; + if ((cpu->u.missed[3] || (_PR_RUNQREADYMASK(me->cpu) >> pri))) { +#ifdef _PR_NO_PREEMPT + cpu->resched = PR_TRUE; + if (pr_interruptSwitchHook) { + (*pr_interruptSwitchHook)(pr_interruptSwitchHookArg); + } +#else /* _PR_NO_PREEMPT */ + /* + ** Re-enable unix interrupts (so that we can use + ** setjmp/longjmp for context switching without having to + ** worry about the signal state) + */ + sigprocmask(SIG_SETMASK, &empty_set, 0); + PR_LOG(_pr_sched_lm, PR_LOG_MIN, ("clock caused context switch")); + + if(!(me->flags & _PR_IDLE_THREAD)) { + _PR_THREAD_LOCK(me); + me->state = _PR_RUNNABLE; + me->cpu = cpu; + _PR_RUNQ_LOCK(cpu); + _PR_ADD_RUNQ(me, cpu, pri); + _PR_RUNQ_UNLOCK(cpu); + _PR_THREAD_UNLOCK(me); + } else { + me->state = _PR_RUNNABLE; + } + _MD_SWITCH_CONTEXT(me); + PR_LOG(_pr_sched_lm, PR_LOG_MIN, ("clock back from context switch")); +#endif /* _PR_NO_PREEMPT */ + } + /* + * Because this thread could be running on a different cpu after + * a context switch the current cpu should be accessed and the + * value of the 'cpu' variable should not be used. + */ + _PR_MD_SET_INTSOFF(0); +} + +/* + * On HP-UX 9, we have to use the sigvector() interface to restart + * interrupted system calls, because sigaction() does not have the + * SA_RESTART flag. + */ + +#ifdef HPUX9 +static void HPUX9_ClockInterruptHandler( + int sig, + int code, + struct sigcontext *scp) +{ + ClockInterruptHandler(); + scp->sc_syscall_action = SIG_RESTART; +} +#endif /* HPUX9 */ + +/* # of milliseconds per clock tick that we will use */ +#define MSEC_PER_TICK 50 + + +void _MD_StartInterrupts() +{ + char *eval; + + if ((eval = getenv("NSPR_NOCLOCK")) != NULL) { + if (atoi(eval) == 0) { + _nspr_noclock = 0; + } + else { + _nspr_noclock = 1; + } + } + +#ifndef _PR_NO_CLOCK_TIMER + if (!_nspr_noclock) { + _MD_EnableClockInterrupts(); + } +#endif +} + +void _MD_StopInterrupts() +{ + sigprocmask(SIG_BLOCK, &timer_set, 0); +} + +void _MD_EnableClockInterrupts() +{ + struct itimerval itval; + extern PRUintn _pr_numCPU; +#ifdef HPUX9 + struct sigvec vec; + + vec.sv_handler = (void (*)()) HPUX9_ClockInterruptHandler; + vec.sv_mask = 0; + vec.sv_flags = 0; + sigvector(SIGALRM, &vec, 0); +#else + struct sigaction vtact; + + vtact.sa_handler = (void (*)()) ClockInterruptHandler; + sigemptyset(&vtact.sa_mask); + vtact.sa_flags = SA_RESTART; + sigaction(SIGALRM, &vtact, 0); +#endif /* HPUX9 */ + + PR_ASSERT(_pr_numCPU == 1); + itval.it_interval.tv_sec = 0; + itval.it_interval.tv_usec = MSEC_PER_TICK * PR_USEC_PER_MSEC; + itval.it_value = itval.it_interval; + setitimer(ITIMER_REAL, &itval, 0); +} + +void _MD_DisableClockInterrupts() +{ + struct itimerval itval; + extern PRUintn _pr_numCPU; + + PR_ASSERT(_pr_numCPU == 1); + itval.it_interval.tv_sec = 0; + itval.it_interval.tv_usec = 0; + itval.it_value = itval.it_interval; + setitimer(ITIMER_REAL, &itval, 0); +} + +void _MD_BlockClockInterrupts() +{ + sigprocmask(SIG_BLOCK, &timer_set, 0); +} + +void _MD_UnblockClockInterrupts() +{ + sigprocmask(SIG_UNBLOCK, &timer_set, 0); +} + +void _MD_MakeNonblock(PRFileDesc *fd) +{ + PRInt32 osfd = fd->secret->md.osfd; + int flags; + + if (osfd <= 2) { + /* Don't mess around with stdin, stdout or stderr */ + return; + } + flags = fcntl(osfd, F_GETFL, 0); + + /* + * Use O_NONBLOCK (POSIX-style non-blocking I/O) whenever possible. + * On SunOS 4, we must use FNDELAY (BSD-style non-blocking I/O), + * otherwise connect() still blocks and can be interrupted by SIGALRM. + */ + + fcntl(osfd, F_SETFL, flags | O_NONBLOCK); +} + +PRInt32 _MD_open(const char *name, PRIntn flags, PRIntn mode) +{ + PRInt32 osflags; + PRInt32 rv, err; + + if (flags & PR_RDWR) { + osflags = O_RDWR; + } else if (flags & PR_WRONLY) { + osflags = O_WRONLY; + } else { + osflags = O_RDONLY; + } + + if (flags & PR_EXCL) { + osflags |= O_EXCL; + } + if (flags & PR_APPEND) { + osflags |= O_APPEND; + } + if (flags & PR_TRUNCATE) { + osflags |= O_TRUNC; + } + if (flags & PR_SYNC) { +#if defined(O_SYNC) + osflags |= O_SYNC; +#elif defined(O_FSYNC) + osflags |= O_FSYNC; +#else +#error "Neither O_SYNC nor O_FSYNC is defined on this platform" +#endif + } + + /* + ** On creations we hold the 'create' lock in order to enforce + ** the semantics of PR_Rename. (see the latter for more details) + */ + if (flags & PR_CREATE_FILE) + { + osflags |= O_CREAT; + if (NULL !=_pr_unix_rename_lock) { + PR_Lock(_pr_unix_rename_lock); + } + } + +#if defined(ANDROID) + osflags |= O_LARGEFILE; +#endif + + rv = _md_iovector._open64(name, osflags, mode); + + if (rv < 0) { + err = _MD_ERRNO(); + _PR_MD_MAP_OPEN_ERROR(err); + } + + if ((flags & PR_CREATE_FILE) && (NULL !=_pr_unix_rename_lock)) { + PR_Unlock(_pr_unix_rename_lock); + } + return rv; +} + +PRIntervalTime intr_timeout_ticks; + +#if defined(SOLARIS) +static void sigsegvhandler() { + fprintf(stderr,"Received SIGSEGV\n"); + fflush(stderr); + pause(); +} + +static void sigaborthandler() { + fprintf(stderr,"Received SIGABRT\n"); + fflush(stderr); + pause(); +} + +static void sigbushandler() { + fprintf(stderr,"Received SIGBUS\n"); + fflush(stderr); + pause(); +} +#endif /* SOLARIS */ + +#endif /* !defined(_PR_PTHREADS) */ + +void _MD_query_fd_inheritable(PRFileDesc *fd) +{ + int flags; + + PR_ASSERT(_PR_TRI_UNKNOWN == fd->secret->inheritable); + flags = fcntl(fd->secret->md.osfd, F_GETFD, 0); + PR_ASSERT(-1 != flags); + fd->secret->inheritable = (flags & FD_CLOEXEC) ? + _PR_TRI_FALSE : _PR_TRI_TRUE; +} + +PROffset32 _MD_lseek(PRFileDesc *fd, PROffset32 offset, PRSeekWhence whence) +{ + PROffset32 rv, where; + + switch (whence) { + case PR_SEEK_SET: + where = SEEK_SET; + break; + case PR_SEEK_CUR: + where = SEEK_CUR; + break; + case PR_SEEK_END: + where = SEEK_END; + break; + default: + PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0); + rv = -1; + goto done; + } + rv = lseek(fd->secret->md.osfd,offset,where); + if (rv == -1) + { + PRInt32 syserr = _MD_ERRNO(); + _PR_MD_MAP_LSEEK_ERROR(syserr); + } +done: + return(rv); +} + +PROffset64 _MD_lseek64(PRFileDesc *fd, PROffset64 offset, PRSeekWhence whence) +{ + PRInt32 where; + PROffset64 rv; + + switch (whence) + { + case PR_SEEK_SET: + where = SEEK_SET; + break; + case PR_SEEK_CUR: + where = SEEK_CUR; + break; + case PR_SEEK_END: + where = SEEK_END; + break; + default: + PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0); + rv = minus_one; + goto done; + } + rv = _md_iovector._lseek64(fd->secret->md.osfd, offset, where); + if (LL_EQ(rv, minus_one)) + { + PRInt32 syserr = _MD_ERRNO(); + _PR_MD_MAP_LSEEK_ERROR(syserr); + } +done: + return rv; +} /* _MD_lseek64 */ + +/* +** _MD_set_fileinfo_times -- +** Set the modifyTime and creationTime of the PRFileInfo +** structure using the values in struct stat. +** +** _MD_set_fileinfo64_times -- +** Set the modifyTime and creationTime of the PRFileInfo64 +** structure using the values in _MDStat64. +*/ + +#if defined(_PR_STAT_HAS_ST_ATIM) +/* +** struct stat has st_atim, st_mtim, and st_ctim fields of +** type timestruc_t. +*/ +static void _MD_set_fileinfo_times( + const struct stat *sb, + PRFileInfo *info) +{ + PRInt64 us, s2us; + + LL_I2L(s2us, PR_USEC_PER_SEC); + LL_I2L(info->modifyTime, sb->st_mtim.tv_sec); + LL_MUL(info->modifyTime, info->modifyTime, s2us); + LL_I2L(us, sb->st_mtim.tv_nsec / 1000); + LL_ADD(info->modifyTime, info->modifyTime, us); + LL_I2L(info->creationTime, sb->st_ctim.tv_sec); + LL_MUL(info->creationTime, info->creationTime, s2us); + LL_I2L(us, sb->st_ctim.tv_nsec / 1000); + LL_ADD(info->creationTime, info->creationTime, us); +} + +static void _MD_set_fileinfo64_times( + const _MDStat64 *sb, + PRFileInfo64 *info) +{ + PRInt64 us, s2us; + + LL_I2L(s2us, PR_USEC_PER_SEC); + LL_I2L(info->modifyTime, sb->st_mtim.tv_sec); + LL_MUL(info->modifyTime, info->modifyTime, s2us); + LL_I2L(us, sb->st_mtim.tv_nsec / 1000); + LL_ADD(info->modifyTime, info->modifyTime, us); + LL_I2L(info->creationTime, sb->st_ctim.tv_sec); + LL_MUL(info->creationTime, info->creationTime, s2us); + LL_I2L(us, sb->st_ctim.tv_nsec / 1000); + LL_ADD(info->creationTime, info->creationTime, us); +} +#elif defined(_PR_STAT_HAS_ST_ATIM_UNION) +/* +** The st_atim, st_mtim, and st_ctim fields in struct stat are +** unions with a st__tim union member of type timestruc_t. +*/ +static void _MD_set_fileinfo_times( + const struct stat *sb, + PRFileInfo *info) +{ + PRInt64 us, s2us; + + LL_I2L(s2us, PR_USEC_PER_SEC); + LL_I2L(info->modifyTime, sb->st_mtim.st__tim.tv_sec); + LL_MUL(info->modifyTime, info->modifyTime, s2us); + LL_I2L(us, sb->st_mtim.st__tim.tv_nsec / 1000); + LL_ADD(info->modifyTime, info->modifyTime, us); + LL_I2L(info->creationTime, sb->st_ctim.st__tim.tv_sec); + LL_MUL(info->creationTime, info->creationTime, s2us); + LL_I2L(us, sb->st_ctim.st__tim.tv_nsec / 1000); + LL_ADD(info->creationTime, info->creationTime, us); +} + +static void _MD_set_fileinfo64_times( + const _MDStat64 *sb, + PRFileInfo64 *info) +{ + PRInt64 us, s2us; + + LL_I2L(s2us, PR_USEC_PER_SEC); + LL_I2L(info->modifyTime, sb->st_mtim.st__tim.tv_sec); + LL_MUL(info->modifyTime, info->modifyTime, s2us); + LL_I2L(us, sb->st_mtim.st__tim.tv_nsec / 1000); + LL_ADD(info->modifyTime, info->modifyTime, us); + LL_I2L(info->creationTime, sb->st_ctim.st__tim.tv_sec); + LL_MUL(info->creationTime, info->creationTime, s2us); + LL_I2L(us, sb->st_ctim.st__tim.tv_nsec / 1000); + LL_ADD(info->creationTime, info->creationTime, us); +} +#elif defined(_PR_STAT_HAS_ST_ATIMESPEC) +/* +** struct stat has st_atimespec, st_mtimespec, and st_ctimespec +** fields of type struct timespec. +*/ +#if defined(_PR_TIMESPEC_HAS_TS_SEC) +static void _MD_set_fileinfo_times( + const struct stat *sb, + PRFileInfo *info) +{ + PRInt64 us, s2us; + + LL_I2L(s2us, PR_USEC_PER_SEC); + LL_I2L(info->modifyTime, sb->st_mtimespec.ts_sec); + LL_MUL(info->modifyTime, info->modifyTime, s2us); + LL_I2L(us, sb->st_mtimespec.ts_nsec / 1000); + LL_ADD(info->modifyTime, info->modifyTime, us); + LL_I2L(info->creationTime, sb->st_ctimespec.ts_sec); + LL_MUL(info->creationTime, info->creationTime, s2us); + LL_I2L(us, sb->st_ctimespec.ts_nsec / 1000); + LL_ADD(info->creationTime, info->creationTime, us); +} + +static void _MD_set_fileinfo64_times( + const _MDStat64 *sb, + PRFileInfo64 *info) +{ + PRInt64 us, s2us; + + LL_I2L(s2us, PR_USEC_PER_SEC); + LL_I2L(info->modifyTime, sb->st_mtimespec.ts_sec); + LL_MUL(info->modifyTime, info->modifyTime, s2us); + LL_I2L(us, sb->st_mtimespec.ts_nsec / 1000); + LL_ADD(info->modifyTime, info->modifyTime, us); + LL_I2L(info->creationTime, sb->st_ctimespec.ts_sec); + LL_MUL(info->creationTime, info->creationTime, s2us); + LL_I2L(us, sb->st_ctimespec.ts_nsec / 1000); + LL_ADD(info->creationTime, info->creationTime, us); +} +#else /* _PR_TIMESPEC_HAS_TS_SEC */ +/* +** The POSIX timespec structure has tv_sec and tv_nsec. +*/ +static void _MD_set_fileinfo_times( + const struct stat *sb, + PRFileInfo *info) +{ + PRInt64 us, s2us; + + LL_I2L(s2us, PR_USEC_PER_SEC); + LL_I2L(info->modifyTime, sb->st_mtimespec.tv_sec); + LL_MUL(info->modifyTime, info->modifyTime, s2us); + LL_I2L(us, sb->st_mtimespec.tv_nsec / 1000); + LL_ADD(info->modifyTime, info->modifyTime, us); + LL_I2L(info->creationTime, sb->st_ctimespec.tv_sec); + LL_MUL(info->creationTime, info->creationTime, s2us); + LL_I2L(us, sb->st_ctimespec.tv_nsec / 1000); + LL_ADD(info->creationTime, info->creationTime, us); +} + +static void _MD_set_fileinfo64_times( + const _MDStat64 *sb, + PRFileInfo64 *info) +{ + PRInt64 us, s2us; + + LL_I2L(s2us, PR_USEC_PER_SEC); + LL_I2L(info->modifyTime, sb->st_mtimespec.tv_sec); + LL_MUL(info->modifyTime, info->modifyTime, s2us); + LL_I2L(us, sb->st_mtimespec.tv_nsec / 1000); + LL_ADD(info->modifyTime, info->modifyTime, us); + LL_I2L(info->creationTime, sb->st_ctimespec.tv_sec); + LL_MUL(info->creationTime, info->creationTime, s2us); + LL_I2L(us, sb->st_ctimespec.tv_nsec / 1000); + LL_ADD(info->creationTime, info->creationTime, us); +} +#endif /* _PR_TIMESPEC_HAS_TS_SEC */ +#elif defined(_PR_STAT_HAS_ONLY_ST_ATIME) +/* +** struct stat only has st_atime, st_mtime, and st_ctime fields +** of type time_t. +*/ +static void _MD_set_fileinfo_times( + const struct stat *sb, + PRFileInfo *info) +{ + PRInt64 s, s2us; + LL_I2L(s2us, PR_USEC_PER_SEC); + LL_I2L(s, sb->st_mtime); + LL_MUL(s, s, s2us); + info->modifyTime = s; + LL_I2L(s, sb->st_ctime); + LL_MUL(s, s, s2us); + info->creationTime = s; +} + +static void _MD_set_fileinfo64_times( + const _MDStat64 *sb, + PRFileInfo64 *info) +{ + PRInt64 s, s2us; + LL_I2L(s2us, PR_USEC_PER_SEC); + LL_I2L(s, sb->st_mtime); + LL_MUL(s, s, s2us); + info->modifyTime = s; + LL_I2L(s, sb->st_ctime); + LL_MUL(s, s, s2us); + info->creationTime = s; +} +#else +#error "I don't know yet" +#endif + +static int _MD_convert_stat_to_fileinfo( + const struct stat *sb, + PRFileInfo *info) +{ + if (S_IFREG & sb->st_mode) { + info->type = PR_FILE_FILE; + } + else if (S_IFDIR & sb->st_mode) { + info->type = PR_FILE_DIRECTORY; + } + else { + info->type = PR_FILE_OTHER; + } + +#if defined(_PR_HAVE_LARGE_OFF_T) + if (0x7fffffffL < sb->st_size) + { + PR_SetError(PR_FILE_TOO_BIG_ERROR, 0); + return -1; + } +#endif /* defined(_PR_HAVE_LARGE_OFF_T) */ + info->size = sb->st_size; + + _MD_set_fileinfo_times(sb, info); + return 0; +} /* _MD_convert_stat_to_fileinfo */ + +static int _MD_convert_stat64_to_fileinfo64( + const _MDStat64 *sb, + PRFileInfo64 *info) +{ + if (S_IFREG & sb->st_mode) { + info->type = PR_FILE_FILE; + } + else if (S_IFDIR & sb->st_mode) { + info->type = PR_FILE_DIRECTORY; + } + else { + info->type = PR_FILE_OTHER; + } + + LL_I2L(info->size, sb->st_size); + + _MD_set_fileinfo64_times(sb, info); + return 0; +} /* _MD_convert_stat64_to_fileinfo64 */ + +PRInt32 _MD_getfileinfo(const char *fn, PRFileInfo *info) +{ + PRInt32 rv; + struct stat sb; + + rv = stat(fn, &sb); + if (rv < 0) { + _PR_MD_MAP_STAT_ERROR(_MD_ERRNO()); + } + else if (NULL != info) { + rv = _MD_convert_stat_to_fileinfo(&sb, info); + } + return rv; +} + +PRInt32 _MD_getfileinfo64(const char *fn, PRFileInfo64 *info) +{ + _MDStat64 sb; + PRInt32 rv = _md_iovector._stat64(fn, &sb); + if (rv < 0) { + _PR_MD_MAP_STAT_ERROR(_MD_ERRNO()); + } + else if (NULL != info) { + rv = _MD_convert_stat64_to_fileinfo64(&sb, info); + } + return rv; +} + +PRInt32 _MD_getopenfileinfo(const PRFileDesc *fd, PRFileInfo *info) +{ + struct stat sb; + PRInt32 rv = fstat(fd->secret->md.osfd, &sb); + if (rv < 0) { + _PR_MD_MAP_FSTAT_ERROR(_MD_ERRNO()); + } + else if (NULL != info) { + rv = _MD_convert_stat_to_fileinfo(&sb, info); + } + return rv; +} + +PRInt32 _MD_getopenfileinfo64(const PRFileDesc *fd, PRFileInfo64 *info) +{ + _MDStat64 sb; + PRInt32 rv = _md_iovector._fstat64(fd->secret->md.osfd, &sb); + if (rv < 0) { + _PR_MD_MAP_FSTAT_ERROR(_MD_ERRNO()); + } + else if (NULL != info) { + rv = _MD_convert_stat64_to_fileinfo64(&sb, info); + } + return rv; +} + +/* + * _md_iovector._open64 must be initialized to 'open' so that _PR_InitLog can + * open the log file during NSPR initialization, before _md_iovector is + * initialized by _PR_MD_FINAL_INIT. This means the log file cannot be a + * large file on some platforms. + */ +struct _MD_IOVector _md_iovector = { open }; + +/* +** These implementations are to emulate large file routines on systems that +** don't have them. Their goal is to check in case overflow occurs. Otherwise +** they will just operate as normal using 32-bit file routines. +** +** The checking might be pre- or post-op, depending on the semantics. +*/ + +#if defined(SOLARIS2_5) + +static PRIntn _MD_solaris25_fstat64(PRIntn osfd, _MDStat64 *buf) +{ + PRInt32 rv; + struct stat sb; + + rv = fstat(osfd, &sb); + if (rv >= 0) + { + /* + ** I'm only copying the fields that are immediately needed. + ** If somebody else calls this function, some of the fields + ** may not be defined. + */ + (void)memset(buf, 0, sizeof(_MDStat64)); + buf->st_mode = sb.st_mode; + buf->st_ctim = sb.st_ctim; + buf->st_mtim = sb.st_mtim; + buf->st_size = sb.st_size; + } + return rv; +} /* _MD_solaris25_fstat64 */ + +static PRIntn _MD_solaris25_stat64(const char *fn, _MDStat64 *buf) +{ + PRInt32 rv; + struct stat sb; + + rv = stat(fn, &sb); + if (rv >= 0) + { + /* + ** I'm only copying the fields that are immediately needed. + ** If somebody else calls this function, some of the fields + ** may not be defined. + */ + (void)memset(buf, 0, sizeof(_MDStat64)); + buf->st_mode = sb.st_mode; + buf->st_ctim = sb.st_ctim; + buf->st_mtim = sb.st_mtim; + buf->st_size = sb.st_size; + } + return rv; +} /* _MD_solaris25_stat64 */ +#endif /* defined(SOLARIS2_5) */ + +#if defined(_PR_NO_LARGE_FILES) || defined(SOLARIS2_5) + +static PROffset64 _MD_Unix_lseek64(PRIntn osfd, PROffset64 offset, PRIntn whence) +{ + PRUint64 maxoff; + PROffset64 rv = minus_one; + LL_I2L(maxoff, 0x7fffffff); + if (LL_CMP(offset, <=, maxoff)) + { + off_t off; + LL_L2I(off, offset); + LL_I2L(rv, lseek(osfd, off, whence)); + } + else { + errno = EFBIG; /* we can't go there */ + } + return rv; +} /* _MD_Unix_lseek64 */ + +static void* _MD_Unix_mmap64( + void *addr, PRSize len, PRIntn prot, PRIntn flags, + PRIntn fildes, PRInt64 offset) +{ + PR_SetError(PR_FILE_TOO_BIG_ERROR, 0); + return NULL; +} /* _MD_Unix_mmap64 */ +#endif /* defined(_PR_NO_LARGE_FILES) || defined(SOLARIS2_5) */ + +/* NDK non-unified headers for API < 21 don't have mmap64. However, + * NDK unified headers do provide mmap64 for all API versions when building + * with clang. Therefore, we should provide mmap64 here for API < 21 if we're + * not using clang or if we're using non-unified headers. We check for + * non-unified headers by the lack of __ANDROID_API_L__ macro. */ +#if defined(ANDROID) && __ANDROID_API__ < 21 && \ + (!defined(__clang__) || !defined(__ANDROID_API_L__)) +PR_IMPORT(void) *__mmap2(void *, size_t, int, int, int, size_t); + +#define ANDROID_PAGE_SIZE 4096 + +static void * +mmap64(void *addr, size_t len, int prot, int flags, int fd, loff_t offset) +{ + if (offset & (ANDROID_PAGE_SIZE - 1)) { + errno = EINVAL; + return MAP_FAILED; + } + return __mmap2(addr, len, prot, flags, fd, offset / ANDROID_PAGE_SIZE); +} +#endif + +static void _PR_InitIOV(void) +{ +#if defined(SOLARIS2_5) + PRLibrary *lib; + void *open64_func; + + open64_func = PR_FindSymbolAndLibrary("open64", &lib); + if (NULL != open64_func) + { + PR_ASSERT(NULL != lib); + _md_iovector._open64 = (_MD_Open64)open64_func; + _md_iovector._mmap64 = (_MD_Mmap64)PR_FindSymbol(lib, "mmap64"); + _md_iovector._fstat64 = (_MD_Fstat64)PR_FindSymbol(lib, "fstat64"); + _md_iovector._stat64 = (_MD_Stat64)PR_FindSymbol(lib, "stat64"); + _md_iovector._lseek64 = (_MD_Lseek64)PR_FindSymbol(lib, "lseek64"); + (void)PR_UnloadLibrary(lib); + } + else + { + _md_iovector._open64 = open; + _md_iovector._mmap64 = _MD_Unix_mmap64; + _md_iovector._fstat64 = _MD_solaris25_fstat64; + _md_iovector._stat64 = _MD_solaris25_stat64; + _md_iovector._lseek64 = _MD_Unix_lseek64; + } +#elif defined(_PR_NO_LARGE_FILES) + _md_iovector._open64 = open; + _md_iovector._mmap64 = _MD_Unix_mmap64; + _md_iovector._fstat64 = fstat; + _md_iovector._stat64 = stat; + _md_iovector._lseek64 = _MD_Unix_lseek64; +#elif defined(_PR_HAVE_OFF64_T) +#if (defined(ANDROID) && __ANDROID_API__ < 21) + /* + * Android < 21 doesn't have open64. We pass the O_LARGEFILE flag to open + * in _MD_open. + */ + _md_iovector._open64 = open; +#else + _md_iovector._open64 = open64; +#endif + _md_iovector._mmap64 = mmap64; +#if (defined(ANDROID) && __ANDROID_API__ < 21) + /* Same as the open64 case for Android. */ + _md_iovector._fstat64 = (_MD_Fstat64)fstat; + _md_iovector._stat64 = (_MD_Stat64)stat; +#else + _md_iovector._fstat64 = fstat64; + _md_iovector._stat64 = stat64; +#endif + _md_iovector._lseek64 = lseek64; +#elif defined(_PR_HAVE_LARGE_OFF_T) + _md_iovector._open64 = open; + _md_iovector._mmap64 = mmap; + _md_iovector._fstat64 = fstat; + _md_iovector._stat64 = stat; + _md_iovector._lseek64 = lseek; +#else +#error "I don't know yet" +#endif + LL_I2L(minus_one, -1); +} /* _PR_InitIOV */ + +void _PR_UnixInit(void) +{ + struct sigaction sigact; + int rv; + + sigemptyset(&timer_set); + +#if !defined(_PR_PTHREADS) + + sigaddset(&timer_set, SIGALRM); + sigemptyset(&empty_set); + intr_timeout_ticks = + PR_SecondsToInterval(_PR_INTERRUPT_CHECK_INTERVAL_SECS); + +#if defined(SOLARIS) + + if (getenv("NSPR_SIGSEGV_HANDLE")) { + sigact.sa_handler = sigsegvhandler; + sigact.sa_flags = 0; + sigact.sa_mask = timer_set; + sigaction(SIGSEGV, &sigact, 0); + } + + if (getenv("NSPR_SIGABRT_HANDLE")) { + sigact.sa_handler = sigaborthandler; + sigact.sa_flags = 0; + sigact.sa_mask = timer_set; + sigaction(SIGABRT, &sigact, 0); + } + + if (getenv("NSPR_SIGBUS_HANDLE")) { + sigact.sa_handler = sigbushandler; + sigact.sa_flags = 0; + sigact.sa_mask = timer_set; + sigaction(SIGBUS, &sigact, 0); + } + +#endif +#endif /* !defined(_PR_PTHREADS) */ + + sigact.sa_handler = SIG_IGN; + sigemptyset(&sigact.sa_mask); + sigact.sa_flags = 0; + rv = sigaction(SIGPIPE, &sigact, 0); + PR_ASSERT(0 == rv); + + _pr_unix_rename_lock = PR_NewLock(); + PR_ASSERT(NULL != _pr_unix_rename_lock); + _pr_Xfe_mon = PR_NewMonitor(); + PR_ASSERT(NULL != _pr_Xfe_mon); + + _PR_InitIOV(); /* one last hack */ +} + +void _PR_UnixCleanup(void) +{ + if (_pr_unix_rename_lock) { + PR_DestroyLock(_pr_unix_rename_lock); + _pr_unix_rename_lock = NULL; + } + if (_pr_Xfe_mon) { + PR_DestroyMonitor(_pr_Xfe_mon); + _pr_Xfe_mon = NULL; + } +} + +#if !defined(_PR_PTHREADS) + +/* + * Variables used by the GC code, initialized in _MD_InitSegs(). + */ +static PRInt32 _pr_zero_fd = -1; +static PRLock *_pr_md_lock = NULL; + +/* + * _MD_InitSegs -- + * + * This is Unix's version of _PR_MD_INIT_SEGS(), which is + * called by _PR_InitSegs(), which in turn is called by + * PR_Init(). + */ +void _MD_InitSegs(void) +{ +#ifdef DEBUG + /* + ** Disable using mmap(2) if NSPR_NO_MMAP is set + */ + if (getenv("NSPR_NO_MMAP")) { + _pr_zero_fd = -2; + return; + } +#endif + _pr_zero_fd = open("/dev/zero",O_RDWR, 0); + /* Prevent the fd from being inherited by child processes */ + fcntl(_pr_zero_fd, F_SETFD, FD_CLOEXEC); + _pr_md_lock = PR_NewLock(); +} + +PRStatus _MD_AllocSegment(PRSegment *seg, PRUint32 size, void *vaddr) +{ + static char *lastaddr = (char*) _PR_STACK_VMBASE; + PRStatus retval = PR_SUCCESS; + int prot; + void *rv; + + PR_ASSERT(seg != 0); + PR_ASSERT(size != 0); + + PR_Lock(_pr_md_lock); + if (_pr_zero_fd < 0) { +from_heap: + seg->vaddr = PR_MALLOC(size); + if (!seg->vaddr) { + retval = PR_FAILURE; + } + else { + seg->size = size; + } + goto exit; + } + + prot = PROT_READ|PROT_WRITE; + /* + * On Alpha Linux, the user-level thread stack needs + * to be made executable because longjmp/signal seem + * to put machine instructions on the stack. + */ +#if defined(LINUX) && defined(__alpha) + prot |= PROT_EXEC; +#endif + rv = mmap((vaddr != 0) ? vaddr : lastaddr, size, prot, + _MD_MMAP_FLAGS, + _pr_zero_fd, 0); + if (rv == (void*)-1) { + goto from_heap; + } + lastaddr += size; + seg->vaddr = rv; + seg->size = size; + seg->flags = _PR_SEG_VM; + +exit: + PR_Unlock(_pr_md_lock); + return retval; +} + +void _MD_FreeSegment(PRSegment *seg) +{ + if (seg->flags & _PR_SEG_VM) { + (void) munmap(seg->vaddr, seg->size); + } + else { + PR_DELETE(seg->vaddr); + } +} + +#endif /* _PR_PTHREADS */ + +/* + *----------------------------------------------------------------------- + * + * PR_Now -- + * + * Returns the current time in microseconds since the epoch. + * The epoch is midnight January 1, 1970 GMT. + * The implementation is machine dependent. This is the Unix + * implementation. + * Cf. time_t time(time_t *tp) + * + *----------------------------------------------------------------------- + */ + +PR_IMPLEMENT(PRTime) +PR_Now(void) +{ + struct timeval tv; + PRInt64 s, us, s2us; + + GETTIMEOFDAY(&tv); + LL_I2L(s2us, PR_USEC_PER_SEC); + LL_I2L(s, tv.tv_sec); + LL_I2L(us, tv.tv_usec); + LL_MUL(s, s, s2us); + LL_ADD(s, s, us); + return s; +} + +#if defined(_MD_INTERVAL_USE_GTOD) +/* + * This version of interval times is based on the time of day + * capability offered by the system. This isn't valid for two reasons: + * 1) The time of day is neither linear nor montonically increasing + * 2) The units here are milliseconds. That's not appropriate for our use. + */ +PRIntervalTime _PR_UNIX_GetInterval() +{ + struct timeval time; + PRIntervalTime ticks; + + (void)GETTIMEOFDAY(&time); /* fallicy of course */ + ticks = (PRUint32)time.tv_sec * PR_MSEC_PER_SEC; /* that's in milliseconds */ + ticks += (PRUint32)time.tv_usec / PR_USEC_PER_MSEC; /* so's that */ + return ticks; +} /* _PR_UNIX_GetInterval */ + +PRIntervalTime _PR_UNIX_TicksPerSecond() +{ + return 1000; /* this needs some work :) */ +} +#endif + +#if defined(_PR_HAVE_CLOCK_MONOTONIC) +PRIntervalTime _PR_UNIX_GetInterval2() +{ + struct timespec time; + PRIntervalTime ticks; + + if (clock_gettime(CLOCK_MONOTONIC, &time) != 0) { + fprintf(stderr, "clock_gettime failed: %d\n", errno); + abort(); + } + + ticks = (PRUint32)time.tv_sec * PR_MSEC_PER_SEC; + ticks += (PRUint32)time.tv_nsec / PR_NSEC_PER_MSEC; + return ticks; +} + +PRIntervalTime _PR_UNIX_TicksPerSecond2() +{ + return 1000; +} +#endif + +#if !defined(_PR_PTHREADS) +/* + * Wait for I/O on multiple descriptors. + * + * Return 0 if timed out, return -1 if interrupted, + * else return the number of ready descriptors. + */ +PRInt32 _PR_WaitForMultipleFDs( + _PRUnixPollDesc *unixpds, + PRInt32 pdcnt, + PRIntervalTime timeout) +{ + PRPollQueue pq; + PRIntn is; + PRInt32 rv; + _PRCPU *io_cpu; + _PRUnixPollDesc *unixpd, *eunixpd; + PRThread *me = _PR_MD_CURRENT_THREAD(); + + PR_ASSERT(!(me->flags & _PR_IDLE_THREAD)); + + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + return -1; + } + + pq.pds = unixpds; + pq.npds = pdcnt; + + _PR_INTSOFF(is); + _PR_MD_IOQ_LOCK(); + _PR_THREAD_LOCK(me); + + pq.thr = me; + io_cpu = me->cpu; + pq.on_ioq = PR_TRUE; + pq.timeout = timeout; + _PR_ADD_TO_IOQ(pq, me->cpu); + +#if !defined(_PR_USE_POLL) + eunixpd = unixpds + pdcnt; + for (unixpd = unixpds; unixpd < eunixpd; unixpd++) { + PRInt32 osfd = unixpd->osfd; + if (unixpd->in_flags & _PR_UNIX_POLL_READ) { + FD_SET(osfd, &_PR_FD_READ_SET(me->cpu)); + _PR_FD_READ_CNT(me->cpu)[osfd]++; + } + if (unixpd->in_flags & _PR_UNIX_POLL_WRITE) { + FD_SET(osfd, &_PR_FD_WRITE_SET(me->cpu)); + (_PR_FD_WRITE_CNT(me->cpu))[osfd]++; + } + if (unixpd->in_flags & _PR_UNIX_POLL_EXCEPT) { + FD_SET(osfd, &_PR_FD_EXCEPTION_SET(me->cpu)); + (_PR_FD_EXCEPTION_CNT(me->cpu))[osfd]++; + } + if (osfd > _PR_IOQ_MAX_OSFD(me->cpu)) { + _PR_IOQ_MAX_OSFD(me->cpu) = osfd; + } + } +#endif /* !defined(_PR_USE_POLL) */ + + if (_PR_IOQ_TIMEOUT(me->cpu) > timeout) { + _PR_IOQ_TIMEOUT(me->cpu) = timeout; + } + + _PR_IOQ_OSFD_CNT(me->cpu) += pdcnt; + + _PR_SLEEPQ_LOCK(me->cpu); + _PR_ADD_SLEEPQ(me, timeout); + me->state = _PR_IO_WAIT; + me->io_pending = PR_TRUE; + me->io_suspended = PR_FALSE; + _PR_SLEEPQ_UNLOCK(me->cpu); + _PR_THREAD_UNLOCK(me); + _PR_MD_IOQ_UNLOCK(); + + _PR_MD_WAIT(me, timeout); + + me->io_pending = PR_FALSE; + me->io_suspended = PR_FALSE; + + /* + * This thread should run on the same cpu on which it was blocked; when + * the IO request times out the fd sets and fd counts for the + * cpu are updated below. + */ + PR_ASSERT(me->cpu == io_cpu); + + /* + ** If we timed out the pollq might still be on the ioq. Remove it + ** before continuing. + */ + if (pq.on_ioq) { + _PR_MD_IOQ_LOCK(); + /* + * Need to check pq.on_ioq again + */ + if (pq.on_ioq) { + PR_REMOVE_LINK(&pq.links); +#ifndef _PR_USE_POLL + eunixpd = unixpds + pdcnt; + for (unixpd = unixpds; unixpd < eunixpd; unixpd++) { + PRInt32 osfd = unixpd->osfd; + PRInt16 in_flags = unixpd->in_flags; + + if (in_flags & _PR_UNIX_POLL_READ) { + if (--(_PR_FD_READ_CNT(me->cpu))[osfd] == 0) { + FD_CLR(osfd, &_PR_FD_READ_SET(me->cpu)); + } + } + if (in_flags & _PR_UNIX_POLL_WRITE) { + if (--(_PR_FD_WRITE_CNT(me->cpu))[osfd] == 0) { + FD_CLR(osfd, &_PR_FD_WRITE_SET(me->cpu)); + } + } + if (in_flags & _PR_UNIX_POLL_EXCEPT) { + if (--(_PR_FD_EXCEPTION_CNT(me->cpu))[osfd] == 0) { + FD_CLR(osfd, &_PR_FD_EXCEPTION_SET(me->cpu)); + } + } + } +#endif /* _PR_USE_POLL */ + PR_ASSERT(pq.npds == pdcnt); + _PR_IOQ_OSFD_CNT(me->cpu) -= pdcnt; + PR_ASSERT(_PR_IOQ_OSFD_CNT(me->cpu) >= 0); + } + _PR_MD_IOQ_UNLOCK(); + } + /* XXX Should we use _PR_FAST_INTSON or _PR_INTSON? */ + if (1 == pdcnt) { + _PR_FAST_INTSON(is); + } else { + _PR_INTSON(is); + } + + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + return -1; + } + + rv = 0; + if (pq.on_ioq == PR_FALSE) { + /* Count the number of ready descriptors */ + while (--pdcnt >= 0) { + if (unixpds->out_flags != 0) { + rv++; + } + unixpds++; + } + } + + return rv; +} + +/* + * Unblock threads waiting for I/O + * used when interrupting threads + * + * NOTE: The thread lock should held when this function is called. + * On return, the thread lock is released. + */ +void _PR_Unblock_IO_Wait(PRThread *thr) +{ + int pri = thr->priority; + _PRCPU *cpu = thr->cpu; + + /* + * GLOBAL threads wakeup periodically to check for interrupt + */ + if (_PR_IS_NATIVE_THREAD(thr)) { + _PR_THREAD_UNLOCK(thr); + return; + } + + PR_ASSERT(thr->flags & (_PR_ON_SLEEPQ | _PR_ON_PAUSEQ)); + _PR_SLEEPQ_LOCK(cpu); + _PR_DEL_SLEEPQ(thr, PR_TRUE); + _PR_SLEEPQ_UNLOCK(cpu); + + PR_ASSERT(!(thr->flags & _PR_IDLE_THREAD)); + thr->state = _PR_RUNNABLE; + _PR_RUNQ_LOCK(cpu); + _PR_ADD_RUNQ(thr, cpu, pri); + _PR_RUNQ_UNLOCK(cpu); + _PR_THREAD_UNLOCK(thr); + _PR_MD_WAKEUP_WAITER(thr); +} +#endif /* !defined(_PR_PTHREADS) */ + +/* + * When a nonblocking connect has completed, determine whether it + * succeeded or failed, and if it failed, what the error code is. + * + * The function returns the error code. An error code of 0 means + * that the nonblocking connect succeeded. + */ + +int _MD_unix_get_nonblocking_connect_error(int osfd) +{ +#if defined(NTO) + /* Neutrino does not support the SO_ERROR socket option */ + PRInt32 rv; + PRNetAddr addr; + _PRSockLen_t addrlen = sizeof(addr); + + /* Test to see if we are using the Tiny TCP/IP Stack or the Full one. */ + struct statvfs superblock; + rv = fstatvfs(osfd, &superblock); + if (rv == 0) { + if (strcmp(superblock.f_basetype, "ttcpip") == 0) { + /* Using the Tiny Stack! */ + rv = getpeername(osfd, (struct sockaddr *) &addr, + (_PRSockLen_t *) &addrlen); + if (rv == -1) { + int errno_copy = errno; /* make a copy so I don't + * accidentally reset */ + + if (errno_copy == ENOTCONN) { + struct stat StatInfo; + rv = fstat(osfd, &StatInfo); + if (rv == 0) { + time_t current_time = time(NULL); + + /* + * this is a real hack, can't explain why it + * works it just does + */ + if (abs(current_time - StatInfo.st_atime) < 5) { + return ECONNREFUSED; + } else { + return ETIMEDOUT; + } + } else { + return ECONNREFUSED; + } + } else { + return errno_copy; + } + } else { + /* No Error */ + return 0; + } + } else { + /* Have the FULL Stack which supports SO_ERROR */ + /* Hasn't been written yet, never been tested! */ + /* Jerry.Kirk@Nexwarecorp.com */ + + int err; + _PRSockLen_t optlen = sizeof(err); + + if (getsockopt(osfd, SOL_SOCKET, SO_ERROR, + (char *) &err, &optlen) == -1) { + return errno; + } else { + return err; + } + } + } else { + return ECONNREFUSED; + } +#elif defined(UNIXWARE) + /* + * getsockopt() fails with EPIPE, so use getmsg() instead. + */ + + int rv; + int flags = 0; + rv = getmsg(osfd, NULL, NULL, &flags); + PR_ASSERT(-1 == rv || 0 == rv); + if (-1 == rv && errno != EAGAIN && errno != EWOULDBLOCK) { + return errno; + } + return 0; /* no error */ +#else + int err; + _PRSockLen_t optlen = sizeof(err); + if (getsockopt(osfd, SOL_SOCKET, SO_ERROR, (char*)&err, &optlen) == -1) { + return errno; + } + return err; + +#endif +} + +/************************************************************************/ + +/* +** Special hacks for xlib. Xlib/Xt/Xm is not re-entrant nor is it thread +** safe. Unfortunately, neither is mozilla. To make these programs work +** in a pre-emptive threaded environment, we need to use a lock. +*/ + +void _PR_XLock(void) +{ + PR_EnterMonitor(_pr_Xfe_mon); +} + +void _PR_XUnlock(void) +{ + PR_ExitMonitor(_pr_Xfe_mon); +} + +PRBool _PR_XIsLocked(void) +{ + return (PR_InMonitor(_pr_Xfe_mon)) ? PR_TRUE : PR_FALSE; +} + +#if defined(HAVE_FCNTL_FILE_LOCKING) + +PRStatus +_MD_LockFile(PRInt32 f) +{ + PRInt32 rv; + struct flock arg; + + arg.l_type = F_WRLCK; + arg.l_whence = SEEK_SET; + arg.l_start = 0; + arg.l_len = 0; /* until EOF */ + rv = fcntl(f, F_SETLKW, &arg); + if (rv == 0) { + return PR_SUCCESS; + } + _PR_MD_MAP_FLOCK_ERROR(_MD_ERRNO()); + return PR_FAILURE; +} + +PRStatus +_MD_TLockFile(PRInt32 f) +{ + PRInt32 rv; + struct flock arg; + + arg.l_type = F_WRLCK; + arg.l_whence = SEEK_SET; + arg.l_start = 0; + arg.l_len = 0; /* until EOF */ + rv = fcntl(f, F_SETLK, &arg); + if (rv == 0) { + return PR_SUCCESS; + } + _PR_MD_MAP_FLOCK_ERROR(_MD_ERRNO()); + return PR_FAILURE; +} + +PRStatus +_MD_UnlockFile(PRInt32 f) +{ + PRInt32 rv; + struct flock arg; + + arg.l_type = F_UNLCK; + arg.l_whence = SEEK_SET; + arg.l_start = 0; + arg.l_len = 0; /* until EOF */ + rv = fcntl(f, F_SETLK, &arg); + if (rv == 0) { + return PR_SUCCESS; + } + _PR_MD_MAP_FLOCK_ERROR(_MD_ERRNO()); + return PR_FAILURE; +} + +#elif defined(HAVE_BSD_FLOCK) + +#include <sys/file.h> + +PRStatus +_MD_LockFile(PRInt32 f) +{ + PRInt32 rv; + rv = flock(f, LOCK_EX); + if (rv == 0) { + return PR_SUCCESS; + } + _PR_MD_MAP_FLOCK_ERROR(_MD_ERRNO()); + return PR_FAILURE; +} + +PRStatus +_MD_TLockFile(PRInt32 f) +{ + PRInt32 rv; + rv = flock(f, LOCK_EX|LOCK_NB); + if (rv == 0) { + return PR_SUCCESS; + } + _PR_MD_MAP_FLOCK_ERROR(_MD_ERRNO()); + return PR_FAILURE; +} + +PRStatus +_MD_UnlockFile(PRInt32 f) +{ + PRInt32 rv; + rv = flock(f, LOCK_UN); + if (rv == 0) { + return PR_SUCCESS; + } + _PR_MD_MAP_FLOCK_ERROR(_MD_ERRNO()); + return PR_FAILURE; +} +#else + +PRStatus +_MD_LockFile(PRInt32 f) +{ + PRInt32 rv; + rv = lockf(f, F_LOCK, 0); + if (rv == 0) { + return PR_SUCCESS; + } + _PR_MD_MAP_LOCKF_ERROR(_MD_ERRNO()); + return PR_FAILURE; +} + +PRStatus +_MD_TLockFile(PRInt32 f) +{ + PRInt32 rv; + rv = lockf(f, F_TLOCK, 0); + if (rv == 0) { + return PR_SUCCESS; + } + _PR_MD_MAP_LOCKF_ERROR(_MD_ERRNO()); + return PR_FAILURE; +} + +PRStatus +_MD_UnlockFile(PRInt32 f) +{ + PRInt32 rv; + rv = lockf(f, F_ULOCK, 0); + if (rv == 0) { + return PR_SUCCESS; + } + _PR_MD_MAP_LOCKF_ERROR(_MD_ERRNO()); + return PR_FAILURE; +} +#endif + +PRStatus _MD_gethostname(char *name, PRUint32 namelen) +{ + PRIntn rv; + + rv = gethostname(name, namelen); + if (0 == rv) { + return PR_SUCCESS; + } + _PR_MD_MAP_GETHOSTNAME_ERROR(_MD_ERRNO()); + return PR_FAILURE; +} + +PRStatus _MD_getsysinfo(PRSysInfo cmd, char *name, PRUint32 namelen) +{ + struct utsname info; + + PR_ASSERT((cmd == PR_SI_SYSNAME) || (cmd == PR_SI_RELEASE) || + (cmd == PR_SI_RELEASE_BUILD)); + + if (uname(&info) == -1) { + _PR_MD_MAP_DEFAULT_ERROR(errno); + return PR_FAILURE; + } + if (PR_SI_SYSNAME == cmd) { + (void)PR_snprintf(name, namelen, info.sysname); + } + else if (PR_SI_RELEASE == cmd) { + (void)PR_snprintf(name, namelen, info.release); + } + else if (PR_SI_RELEASE_BUILD == cmd) { + (void)PR_snprintf(name, namelen, info.version); + } + else { + return PR_FAILURE; + } + return PR_SUCCESS; +} + +/* + ******************************************************************* + * + * Memory-mapped files + * + ******************************************************************* + */ + +PRStatus _MD_CreateFileMap(PRFileMap *fmap, PRInt64 size) +{ + PRFileInfo info; + PRUint32 sz; + + LL_L2UI(sz, size); + if (sz) { + if (PR_GetOpenFileInfo(fmap->fd, &info) == PR_FAILURE) { + return PR_FAILURE; + } + if (sz > info.size) { + /* + * Need to extend the file + */ + if (fmap->prot != PR_PROT_READWRITE) { + PR_SetError(PR_NO_ACCESS_RIGHTS_ERROR, 0); + return PR_FAILURE; + } + if (PR_Seek(fmap->fd, sz - 1, PR_SEEK_SET) == -1) { + return PR_FAILURE; + } + if (PR_Write(fmap->fd, "", 1) != 1) { + return PR_FAILURE; + } + } + } + if (fmap->prot == PR_PROT_READONLY) { + fmap->md.prot = PROT_READ; +#if defined(DARWIN) || defined(ANDROID) + /* + * This is needed on OS X because its implementation of + * POSIX shared memory returns an error for MAP_PRIVATE, even + * when the mapping is read-only. + * + * And this is needed on Android, because mapping ashmem with + * MAP_PRIVATE creates a mapping of zeroed memory instead of + * the shm contents. + */ + fmap->md.flags = MAP_SHARED; +#else + fmap->md.flags = MAP_PRIVATE; +#endif + } else if (fmap->prot == PR_PROT_READWRITE) { + fmap->md.prot = PROT_READ | PROT_WRITE; + fmap->md.flags = MAP_SHARED; + } else { + PR_ASSERT(fmap->prot == PR_PROT_WRITECOPY); + fmap->md.prot = PROT_READ | PROT_WRITE; + fmap->md.flags = MAP_PRIVATE; + } + return PR_SUCCESS; +} + +void * _MD_MemMap( + PRFileMap *fmap, + PRInt64 offset, + PRUint32 len) +{ + PRInt32 off; + void *addr; + + LL_L2I(off, offset); + if ((addr = mmap(0, len, fmap->md.prot, fmap->md.flags, + fmap->fd->secret->md.osfd, off)) == (void *) -1) { + _PR_MD_MAP_MMAP_ERROR(_MD_ERRNO()); + addr = NULL; + } + return addr; +} + +PRStatus _MD_MemUnmap(void *addr, PRUint32 len) +{ + if (munmap(addr, len) == 0) { + return PR_SUCCESS; + } + _PR_MD_MAP_DEFAULT_ERROR(errno); + return PR_FAILURE; +} + +PRStatus _MD_CloseFileMap(PRFileMap *fmap) +{ + if ( PR_TRUE == fmap->md.isAnonFM ) { + PRStatus rc = PR_Close( fmap->fd ); + if ( PR_FAILURE == rc ) { + PR_LOG( _pr_io_lm, PR_LOG_DEBUG, + ("_MD_CloseFileMap(): error closing anonymnous file map osfd")); + return PR_FAILURE; + } + } + PR_DELETE(fmap); + return PR_SUCCESS; +} + +PRStatus _MD_SyncMemMap( + PRFileDesc *fd, + void *addr, + PRUint32 len) +{ + /* msync(..., MS_SYNC) alone is sufficient to flush modified data to disk + * synchronously. It is not necessary to call fsync. */ + if (msync(addr, len, MS_SYNC) == 0) { + return PR_SUCCESS; + } + _PR_MD_MAP_DEFAULT_ERROR(errno); + return PR_FAILURE; +} + +#if defined(_PR_NEED_FAKE_POLL) + +/* + * Some platforms don't have poll(). For easier porting of code + * that calls poll(), we emulate poll() using select(). + */ + +int poll(struct pollfd *filedes, unsigned long nfds, int timeout) +{ + int i; + int rv; + int maxfd; + fd_set rd, wr, ex; + struct timeval tv, *tvp; + + if (timeout < 0 && timeout != -1) { + errno = EINVAL; + return -1; + } + + if (timeout == -1) { + tvp = NULL; + } else { + tv.tv_sec = timeout / 1000; + tv.tv_usec = (timeout % 1000) * 1000; + tvp = &tv; + } + + maxfd = -1; + FD_ZERO(&rd); + FD_ZERO(&wr); + FD_ZERO(&ex); + + for (i = 0; i < nfds; i++) { + int osfd = filedes[i].fd; + int events = filedes[i].events; + PRBool fdHasEvent = PR_FALSE; + + PR_ASSERT(osfd < FD_SETSIZE); + if (osfd < 0 || osfd >= FD_SETSIZE) { + continue; /* Skip this osfd. */ + } + + /* + * Map the poll events to the select fd_sets. + * POLLIN, POLLRDNORM ===> readable + * POLLOUT, POLLWRNORM ===> writable + * POLLPRI, POLLRDBAND ===> exception + * POLLNORM, POLLWRBAND (and POLLMSG on some platforms) + * are ignored. + * + * The output events POLLERR and POLLHUP are never turned on. + * POLLNVAL may be turned on. + */ + + if (events & (POLLIN | POLLRDNORM)) { + FD_SET(osfd, &rd); + fdHasEvent = PR_TRUE; + } + if (events & (POLLOUT | POLLWRNORM)) { + FD_SET(osfd, &wr); + fdHasEvent = PR_TRUE; + } + if (events & (POLLPRI | POLLRDBAND)) { + FD_SET(osfd, &ex); + fdHasEvent = PR_TRUE; + } + if (fdHasEvent && osfd > maxfd) { + maxfd = osfd; + } + } + + rv = select(maxfd + 1, &rd, &wr, &ex, tvp); + + /* Compute poll results */ + if (rv > 0) { + rv = 0; + for (i = 0; i < nfds; i++) { + PRBool fdHasEvent = PR_FALSE; + + filedes[i].revents = 0; + if (filedes[i].fd < 0) { + continue; + } + if (filedes[i].fd >= FD_SETSIZE) { + filedes[i].revents |= POLLNVAL; + continue; + } + if (FD_ISSET(filedes[i].fd, &rd)) { + if (filedes[i].events & POLLIN) { + filedes[i].revents |= POLLIN; + } + if (filedes[i].events & POLLRDNORM) { + filedes[i].revents |= POLLRDNORM; + } + fdHasEvent = PR_TRUE; + } + if (FD_ISSET(filedes[i].fd, &wr)) { + if (filedes[i].events & POLLOUT) { + filedes[i].revents |= POLLOUT; + } + if (filedes[i].events & POLLWRNORM) { + filedes[i].revents |= POLLWRNORM; + } + fdHasEvent = PR_TRUE; + } + if (FD_ISSET(filedes[i].fd, &ex)) { + if (filedes[i].events & POLLPRI) { + filedes[i].revents |= POLLPRI; + } + if (filedes[i].events & POLLRDBAND) { + filedes[i].revents |= POLLRDBAND; + } + fdHasEvent = PR_TRUE; + } + if (fdHasEvent) { + rv++; + } + } + PR_ASSERT(rv > 0); + } else if (rv == -1 && errno == EBADF) { + rv = 0; + for (i = 0; i < nfds; i++) { + filedes[i].revents = 0; + if (filedes[i].fd < 0) { + continue; + } + if (fcntl(filedes[i].fd, F_GETFL, 0) == -1) { + filedes[i].revents = POLLNVAL; + rv++; + } + } + PR_ASSERT(rv > 0); + } + PR_ASSERT(-1 != timeout || rv != 0); + + return rv; +} +#endif /* _PR_NEED_FAKE_POLL */ diff --git a/nsprpub/pr/src/md/unix/unix_errors.c b/nsprpub/pr/src/md/unix/unix_errors.c new file mode 100644 index 0000000000..1d87659699 --- /dev/null +++ b/nsprpub/pr/src/md/unix/unix_errors.c @@ -0,0 +1,833 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "primpl.h" +#if defined(_PR_POLL_AVAILABLE) +#include <poll.h> +#endif +#include <errno.h> + +void _MD_unix_map_default_error(int err) +{ + PRErrorCode prError; + + switch (err ) { + case EACCES: + prError = PR_NO_ACCESS_RIGHTS_ERROR; + break; + case EADDRINUSE: + prError = PR_ADDRESS_IN_USE_ERROR; + break; + case EADDRNOTAVAIL: + prError = PR_ADDRESS_NOT_AVAILABLE_ERROR; + break; + case EAFNOSUPPORT: + prError = PR_ADDRESS_NOT_SUPPORTED_ERROR; + break; + case EAGAIN: + prError = PR_WOULD_BLOCK_ERROR; + break; + /* + * On QNX and Neutrino, EALREADY is defined as EBUSY. + */ +#if EALREADY != EBUSY + case EALREADY: + prError = PR_ALREADY_INITIATED_ERROR; + break; +#endif + case EBADF: + prError = PR_BAD_DESCRIPTOR_ERROR; + break; +#ifdef EBADMSG + case EBADMSG: + prError = PR_IO_ERROR; + break; +#endif + case EBUSY: + prError = PR_FILESYSTEM_MOUNTED_ERROR; + break; + case ECONNABORTED: + prError = PR_CONNECT_ABORTED_ERROR; + break; + case ECONNREFUSED: + prError = PR_CONNECT_REFUSED_ERROR; + break; + case ECONNRESET: + prError = PR_CONNECT_RESET_ERROR; + break; + case EDEADLK: + prError = PR_DEADLOCK_ERROR; + break; +#ifdef EDIRCORRUPTED + case EDIRCORRUPTED: + prError = PR_DIRECTORY_CORRUPTED_ERROR; + break; +#endif +#ifdef EDQUOT + case EDQUOT: + prError = PR_NO_DEVICE_SPACE_ERROR; + break; +#endif + case EEXIST: + prError = PR_FILE_EXISTS_ERROR; + break; + case EFAULT: + prError = PR_ACCESS_FAULT_ERROR; + break; + case EFBIG: + prError = PR_FILE_TOO_BIG_ERROR; + break; + case EHOSTUNREACH: + case EHOSTDOWN: + prError = PR_HOST_UNREACHABLE_ERROR; + break; + case EINPROGRESS: + prError = PR_IN_PROGRESS_ERROR; + break; + case EINTR: + prError = PR_PENDING_INTERRUPT_ERROR; + break; + case EINVAL: + prError = PR_INVALID_ARGUMENT_ERROR; + break; + case EIO: + prError = PR_IO_ERROR; + break; + case EISCONN: + prError = PR_IS_CONNECTED_ERROR; + break; + case EISDIR: + prError = PR_IS_DIRECTORY_ERROR; + break; + case ELOOP: + prError = PR_LOOP_ERROR; + break; + case EMFILE: + prError = PR_PROC_DESC_TABLE_FULL_ERROR; + break; + case EMLINK: + prError = PR_MAX_DIRECTORY_ENTRIES_ERROR; + break; + case EMSGSIZE: + prError = PR_INVALID_ARGUMENT_ERROR; + break; +#ifdef EMULTIHOP + case EMULTIHOP: + prError = PR_REMOTE_FILE_ERROR; + break; +#endif + case ENAMETOOLONG: + prError = PR_NAME_TOO_LONG_ERROR; + break; + case ENETUNREACH: + prError = PR_NETWORK_UNREACHABLE_ERROR; + break; + case ENFILE: + prError = PR_SYS_DESC_TABLE_FULL_ERROR; + break; + /* + * On SCO OpenServer 5, ENOBUFS is defined as ENOSR. + */ +#if defined(ENOBUFS) && (ENOBUFS != ENOSR) + case ENOBUFS: + prError = PR_INSUFFICIENT_RESOURCES_ERROR; + break; +#endif + case ENODEV: + prError = PR_FILE_NOT_FOUND_ERROR; + break; + case ENOENT: + prError = PR_FILE_NOT_FOUND_ERROR; + break; + case ENOLCK: + prError = PR_FILE_IS_LOCKED_ERROR; + break; +#ifdef ENOLINK + case ENOLINK: + prError = PR_REMOTE_FILE_ERROR; + break; +#endif + case ENOMEM: + prError = PR_OUT_OF_MEMORY_ERROR; + break; + case ENOPROTOOPT: + prError = PR_INVALID_ARGUMENT_ERROR; + break; + case ENOSPC: + prError = PR_NO_DEVICE_SPACE_ERROR; + break; +#ifdef ENOSR + case ENOSR: + prError = PR_INSUFFICIENT_RESOURCES_ERROR; + break; +#endif + case ENOSYS: + prError = PR_NOT_IMPLEMENTED_ERROR; + break; + case ENOTCONN: + prError = PR_NOT_CONNECTED_ERROR; + break; + case ENOTDIR: + prError = PR_NOT_DIRECTORY_ERROR; + break; + case ENOTSOCK: + prError = PR_NOT_SOCKET_ERROR; + break; + case ENXIO: + prError = PR_FILE_NOT_FOUND_ERROR; + break; + case EOPNOTSUPP: + prError = PR_NOT_TCP_SOCKET_ERROR; + break; +#ifdef EOVERFLOW + case EOVERFLOW: + prError = PR_BUFFER_OVERFLOW_ERROR; + break; +#endif + case EPERM: + prError = PR_NO_ACCESS_RIGHTS_ERROR; + break; + case EPIPE: + prError = PR_CONNECT_RESET_ERROR; + break; +#ifdef EPROTO + case EPROTO: + prError = PR_IO_ERROR; + break; +#endif + case EPROTONOSUPPORT: + prError = PR_PROTOCOL_NOT_SUPPORTED_ERROR; + break; + case EPROTOTYPE: + prError = PR_ADDRESS_NOT_SUPPORTED_ERROR; + break; + case ERANGE: + prError = PR_INVALID_METHOD_ERROR; + break; + case EROFS: + prError = PR_READ_ONLY_FILESYSTEM_ERROR; + break; + case ESPIPE: + prError = PR_INVALID_METHOD_ERROR; + break; + case ETIMEDOUT: + prError = PR_IO_TIMEOUT_ERROR; + break; +#if EWOULDBLOCK != EAGAIN + case EWOULDBLOCK: + prError = PR_WOULD_BLOCK_ERROR; + break; +#endif + case EXDEV: + prError = PR_NOT_SAME_DEVICE_ERROR; + break; + default: + prError = PR_UNKNOWN_ERROR; + break; + } + PR_SetError(prError, err); +} + +void _MD_unix_map_opendir_error(int err) +{ + _MD_unix_map_default_error(err); +} + +void _MD_unix_map_closedir_error(int err) +{ + PRErrorCode prError; + + switch (err) { + case EINVAL: + prError = PR_BAD_DESCRIPTOR_ERROR; + break; + default: + _MD_unix_map_default_error(err); + return; + } + PR_SetError(prError, err); +} + +void _MD_unix_readdir_error(int err) +{ + PRErrorCode prError; + + switch (err) { + case 0: + case ENOENT: + prError = PR_NO_MORE_FILES_ERROR; + break; +#ifdef EOVERFLOW + case EOVERFLOW: + prError = PR_IO_ERROR; + break; +#endif + case EINVAL: + prError = PR_IO_ERROR; + break; + case ENXIO: + prError = PR_IO_ERROR; + break; + default: + _MD_unix_map_default_error(err); + return; + } + PR_SetError(prError, err); +} + +void _MD_unix_map_unlink_error(int err) +{ + PRErrorCode prError; + + switch (err) { + case EPERM: + prError = PR_IS_DIRECTORY_ERROR; + break; + default: + _MD_unix_map_default_error(err); + return; + } + PR_SetError(prError, err); +} + +void _MD_unix_map_stat_error(int err) +{ + PRErrorCode prError; + + switch (err) { + case ETIMEDOUT: + prError = PR_REMOTE_FILE_ERROR; + break; + default: + _MD_unix_map_default_error(err); + return; + } + PR_SetError(prError, err); +} + +void _MD_unix_map_fstat_error(int err) +{ + PRErrorCode prError; + + switch (err) { + case ETIMEDOUT: + prError = PR_REMOTE_FILE_ERROR; + break; + default: + _MD_unix_map_default_error(err); + return; + } + PR_SetError(prError, err); +} + +void _MD_unix_map_rename_error(int err) +{ + PRErrorCode prError; + + switch (err) { + case EEXIST: + prError = PR_DIRECTORY_NOT_EMPTY_ERROR; + break; + default: + _MD_unix_map_default_error(err); + return; + } + PR_SetError(prError, err); +} + +void _MD_unix_map_access_error(int err) +{ + PRErrorCode prError; + + switch (err) { + case ETIMEDOUT: + prError = PR_REMOTE_FILE_ERROR; + break; + default: + _MD_unix_map_default_error(err); + return; + } + PR_SetError(prError, err); +} + +void _MD_unix_map_mkdir_error(int err) +{ + _MD_unix_map_default_error(err); +} + +void _MD_unix_map_rmdir_error(int err) +{ + PRErrorCode prError; + + switch (err) { + /* + * On AIX 4.3, ENOTEMPTY is defined as EEXIST. + */ +#if ENOTEMPTY != EEXIST + case ENOTEMPTY: + prError = PR_DIRECTORY_NOT_EMPTY_ERROR; + break; +#endif + case EEXIST: + prError = PR_DIRECTORY_NOT_EMPTY_ERROR; + break; + case EINVAL: + prError = PR_DIRECTORY_NOT_EMPTY_ERROR; + break; + case ETIMEDOUT: + prError = PR_REMOTE_FILE_ERROR; + break; + default: + _MD_unix_map_default_error(err); + return; + } + PR_SetError(prError, err); +} + +void _MD_unix_map_read_error(int err) +{ + PRErrorCode prError; + + switch (err) { + case EINVAL: + prError = PR_INVALID_METHOD_ERROR; + break; + case ENXIO: + prError = PR_INVALID_ARGUMENT_ERROR; + break; + default: + _MD_unix_map_default_error(err); + return; + } + PR_SetError(prError, err); +} + +void _MD_unix_map_write_error(int err) +{ + PRErrorCode prError; + + switch (err) { + case EINVAL: + prError = PR_INVALID_METHOD_ERROR; + break; + case ENXIO: + prError = PR_INVALID_METHOD_ERROR; + break; + case ETIMEDOUT: + prError = PR_REMOTE_FILE_ERROR; + break; + default: + _MD_unix_map_default_error(err); + return; + } + PR_SetError(prError, err); +} + +void _MD_unix_map_lseek_error(int err) +{ + _MD_unix_map_default_error(err); +} + +void _MD_unix_map_fsync_error(int err) +{ + PRErrorCode prError; + + switch (err) { + case ETIMEDOUT: + prError = PR_REMOTE_FILE_ERROR; + break; + case EINVAL: + prError = PR_INVALID_METHOD_ERROR; + break; + default: + _MD_unix_map_default_error(err); + return; + } + PR_SetError(prError, err); +} + +void _MD_unix_map_close_error(int err) +{ + PRErrorCode prError; + + switch (err) { + case ETIMEDOUT: + prError = PR_REMOTE_FILE_ERROR; + break; + default: + _MD_unix_map_default_error(err); + return; + } + PR_SetError(prError, err); +} + +void _MD_unix_map_socket_error(int err) +{ + PRErrorCode prError; + + switch (err) { + case ENOMEM: + prError = PR_INSUFFICIENT_RESOURCES_ERROR; + break; + default: + _MD_unix_map_default_error(err); + return; + } + PR_SetError(prError, err); +} + +void _MD_unix_map_socketavailable_error(int err) +{ + PR_SetError(PR_BAD_DESCRIPTOR_ERROR, err); +} + +void _MD_unix_map_recv_error(int err) +{ + _MD_unix_map_default_error(err); +} + +void _MD_unix_map_recvfrom_error(int err) +{ + _MD_unix_map_default_error(err); +} + +void _MD_unix_map_send_error(int err) +{ + _MD_unix_map_default_error(err); +} + +void _MD_unix_map_sendto_error(int err) +{ + _MD_unix_map_default_error(err); +} + +void _MD_unix_map_writev_error(int err) +{ + _MD_unix_map_default_error(err); +} + +void _MD_unix_map_accept_error(int err) +{ + PRErrorCode prError; + + switch (err) { + case ENODEV: + prError = PR_NOT_TCP_SOCKET_ERROR; + break; + default: + _MD_unix_map_default_error(err); + return; + } + PR_SetError(prError, err); +} + +void _MD_unix_map_connect_error(int err) +{ + PRErrorCode prError; + + switch (err) { +#if defined(UNIXWARE) + /* + * On some platforms, if we connect to a port on the local host + * (the loopback address) that no process is listening on, we get + * EIO instead of ECONNREFUSED. + */ + case EIO: + prError = PR_CONNECT_REFUSED_ERROR; + break; +#endif + case ENXIO: + prError = PR_IO_ERROR; + break; + default: + _MD_unix_map_default_error(err); + return; + } + PR_SetError(prError, err); +} + +void _MD_unix_map_bind_error(int err) +{ + PRErrorCode prError; + + switch (err) { + case EINVAL: + prError = PR_SOCKET_ADDRESS_IS_BOUND_ERROR; + break; + default: + _MD_unix_map_default_error(err); + return; + } + PR_SetError(prError, err); +} + +void _MD_unix_map_listen_error(int err) +{ + _MD_unix_map_default_error(err); +} + +void _MD_unix_map_shutdown_error(int err) +{ + _MD_unix_map_default_error(err); +} + +void _MD_unix_map_socketpair_error(int err) +{ + PRErrorCode prError; + + switch (err) { + case ENOMEM: + prError = PR_INSUFFICIENT_RESOURCES_ERROR; + break; + default: + _MD_unix_map_default_error(err); + return; + } + PR_SetError(prError, err); +} + +void _MD_unix_map_getsockname_error(int err) +{ + PRErrorCode prError; + + switch (err) { + case ENOMEM: + prError = PR_INSUFFICIENT_RESOURCES_ERROR; + break; + default: + _MD_unix_map_default_error(err); + return; + } + PR_SetError(prError, err); +} + +void _MD_unix_map_getpeername_error(int err) +{ + PRErrorCode prError; + + switch (err) { + case ENOMEM: + prError = PR_INSUFFICIENT_RESOURCES_ERROR; + break; + default: + _MD_unix_map_default_error(err); + return; + } + PR_SetError(prError, err); +} + +void _MD_unix_map_getsockopt_error(int err) +{ + PRErrorCode prError; + + switch (err) { + case EINVAL: + prError = PR_BUFFER_OVERFLOW_ERROR; + break; + case ENOMEM: + prError = PR_INSUFFICIENT_RESOURCES_ERROR; + break; + default: + _MD_unix_map_default_error(err); + return; + } + PR_SetError(prError, err); +} + +void _MD_unix_map_setsockopt_error(int err) +{ + PRErrorCode prError; + + switch (err) { + case EINVAL: + prError = PR_BUFFER_OVERFLOW_ERROR; + break; + case ENOMEM: + prError = PR_INSUFFICIENT_RESOURCES_ERROR; + break; + default: + _MD_unix_map_default_error(err); + return; + } + PR_SetError(prError, err); +} + +void _MD_unix_map_open_error(int err) +{ + PRErrorCode prError; + + switch (err) { + case EAGAIN: + prError = PR_INSUFFICIENT_RESOURCES_ERROR; + break; + case EBUSY: + prError = PR_IO_ERROR; + break; + case ENODEV: + prError = PR_FILE_NOT_FOUND_ERROR; + break; + case ENOMEM: + prError = PR_INSUFFICIENT_RESOURCES_ERROR; + break; +#ifdef EOVERFLOW + case EOVERFLOW: + prError = PR_FILE_TOO_BIG_ERROR; + break; +#endif + case ETIMEDOUT: + prError = PR_REMOTE_FILE_ERROR; + break; + default: + _MD_unix_map_default_error(err); + return; + } + PR_SetError(prError, err); +} + +void _MD_unix_map_mmap_error(int err) +{ + PRErrorCode prError; + + switch (err) { + case EAGAIN: + prError = PR_INSUFFICIENT_RESOURCES_ERROR; + break; + case EMFILE: + prError = PR_INSUFFICIENT_RESOURCES_ERROR; + break; + case ENODEV: + prError = PR_OPERATION_NOT_SUPPORTED_ERROR; + break; + case ENXIO: + prError = PR_INVALID_ARGUMENT_ERROR; + break; + default: + _MD_unix_map_default_error(err); + return; + } + PR_SetError(prError, err); +} + +void _MD_unix_map_gethostname_error(int err) +{ + _MD_unix_map_default_error(err); +} + +void _MD_unix_map_select_error(int err) +{ + _MD_unix_map_default_error(err); +} + +#if defined(_PR_POLL_AVAILABLE) || defined(_PR_NEED_FAKE_POLL) +void _MD_unix_map_poll_error(int err) +{ + PRErrorCode prError; + + switch (err) { + case EAGAIN: + prError = PR_INSUFFICIENT_RESOURCES_ERROR; + break; + default: + _MD_unix_map_default_error(err); + return; + } + PR_SetError(prError, err); +} + +void _MD_unix_map_poll_revents_error(int err) +{ + if (err & POLLNVAL) { + PR_SetError(PR_BAD_DESCRIPTOR_ERROR, EBADF); + } + else if (err & POLLHUP) { + PR_SetError(PR_CONNECT_RESET_ERROR, EPIPE); + } + else if (err & POLLERR) { + PR_SetError(PR_IO_ERROR, EIO); + } + else { + PR_SetError(PR_UNKNOWN_ERROR, err); + } +} +#endif /* _PR_POLL_AVAILABLE || _PR_NEED_FAKE_POLL */ + + +void _MD_unix_map_flock_error(int err) +{ + PRErrorCode prError; + + switch (err) { + case EINVAL: + prError = PR_BAD_DESCRIPTOR_ERROR; + break; + case EWOULDBLOCK: + prError = PR_FILE_IS_LOCKED_ERROR; + break; + default: + _MD_unix_map_default_error(err); + return; + } + PR_SetError(prError, err); +} + +void _MD_unix_map_lockf_error(int err) +{ + PRErrorCode prError; + + switch (err) { + case EACCES: + prError = PR_FILE_IS_LOCKED_ERROR; + break; + case EDEADLK: + prError = PR_INSUFFICIENT_RESOURCES_ERROR; + break; + default: + _MD_unix_map_default_error(err); + return; + } + PR_SetError(prError, err); +} + +#ifdef AIX +void _MD_aix_map_sendfile_error(int err) +{ + _MD_unix_map_default_error(err); +} +#endif /* AIX */ + +#ifdef HPUX11 +void _MD_hpux_map_sendfile_error(int err) +{ + _MD_unix_map_default_error(err); +} +#endif /* HPUX11 */ + +#ifdef SOLARIS +void _MD_solaris_map_sendfile_error(int err) +{ + PRErrorCode prError; + + switch (err) { + /* + * Solaris defines a 0 return value for sendfile to mean end-of-file. + */ + case 0: + prError = PR_END_OF_FILE_ERROR; + break; + + default: + _MD_unix_map_default_error(err) ; + return; + } + PR_SetError(prError, err); +} +#endif /* SOLARIS */ + +#ifdef LINUX +void _MD_linux_map_sendfile_error(int err) +{ + _MD_unix_map_default_error(err) ; +} +#endif /* LINUX */ diff --git a/nsprpub/pr/src/md/unix/unixware.c b/nsprpub/pr/src/md/unix/unixware.c new file mode 100644 index 0000000000..d6958558b2 --- /dev/null +++ b/nsprpub/pr/src/md/unix/unixware.c @@ -0,0 +1,559 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "primpl.h" + +#if !defined (USE_SVR4_THREADS) + +/* + * using only NSPR threads here + */ + +#include <setjmp.h> + +void _MD_EarlyInit(void) +{ +} + +PRWord *_MD_HomeGCRegisters(PRThread *t, int isCurrent, int *np) +{ + if (isCurrent) { + (void) setjmp(CONTEXT(t)); + } + *np = sizeof(CONTEXT(t)) / sizeof(PRWord); + return (PRWord *) CONTEXT(t); +} + +#ifdef ALARMS_BREAK_TCP /* I don't think they do */ + +PRInt32 _MD_connect(PRInt32 osfd, const PRNetAddr *addr, PRInt32 addrlen, + PRIntervalTime timeout) +{ + PRInt32 rv; + + _MD_BLOCK_CLOCK_INTERRUPTS(); + rv = _connect(osfd,addr,addrlen); + _MD_UNBLOCK_CLOCK_INTERRUPTS(); +} + +PRInt32 _MD_accept(PRInt32 osfd, PRNetAddr *addr, PRInt32 addrlen, + PRIntervalTime timeout) +{ + PRInt32 rv; + + _MD_BLOCK_CLOCK_INTERRUPTS(); + rv = _accept(osfd,addr,addrlen); + _MD_UNBLOCK_CLOCK_INTERRUPTS(); + return(rv); +} +#endif + +/* + * These are also implemented in pratom.c using NSPR locks. Any reason + * this might be better or worse? If you like this better, define + * _PR_HAVE_ATOMIC_OPS in include/md/unixware.h + */ +#ifdef _PR_HAVE_ATOMIC_OPS +/* Atomic operations */ +#include <stdio.h> +static FILE *_uw_semf; + +void +_MD_INIT_ATOMIC(void) +{ + /* Sigh. Sure wish SYSV semaphores weren't such a pain to use */ + if ((_uw_semf = tmpfile()) == NULL) { + PR_ASSERT(0); + } + + return; +} + +void +_MD_ATOMIC_INCREMENT(PRInt32 *val) +{ + flockfile(_uw_semf); + (*val)++; + unflockfile(_uw_semf); +} + +void +_MD_ATOMIC_ADD(PRInt32 *ptr, PRInt32 val) +{ + flockfile(_uw_semf); + (*ptr) += val; + unflockfile(_uw_semf); +} + +void +_MD_ATOMIC_DECREMENT(PRInt32 *val) +{ + flockfile(_uw_semf); + (*val)--; + unflockfile(_uw_semf); +} + +void +_MD_ATOMIC_SET(PRInt32 *val, PRInt32 newval) +{ + flockfile(_uw_semf); + *val = newval; + unflockfile(_uw_semf); +} +#endif + +void +_MD_SET_PRIORITY(_MDThread *thread, PRUintn newPri) +{ + return; +} + +PRStatus +_MD_InitializeThread(PRThread *thread) +{ + return PR_SUCCESS; +} + +PRStatus +_MD_WAIT(PRThread *thread, PRIntervalTime ticks) +{ + PR_ASSERT(!(thread->flags & _PR_GLOBAL_SCOPE)); + _PR_MD_SWITCH_CONTEXT(thread); + return PR_SUCCESS; +} + +PRStatus +_MD_WAKEUP_WAITER(PRThread *thread) +{ + if (thread) { + PR_ASSERT(!(thread->flags & _PR_GLOBAL_SCOPE)); + } + return PR_SUCCESS; +} + +/* These functions should not be called for Unixware */ +void +_MD_YIELD(void) +{ + PR_NOT_REACHED("_MD_YIELD should not be called for Unixware."); +} + +PRStatus +_MD_CREATE_THREAD( + PRThread *thread, + void (*start) (void *), + PRThreadPriority priority, + PRThreadScope scope, + PRThreadState state, + PRUint32 stackSize) +{ + PR_NOT_REACHED("_MD_CREATE_THREAD should not be called for Unixware."); +} + +#else /* USE_SVR4_THREADS */ + +/* NOTE: + * SPARC v9 (Ultras) do have an atomic test-and-set operation. But + * SPARC v8 doesn't. We should detect in the init if we are running on + * v8 or v9, and then use assembly where we can. + */ + +#include <thread.h> +#include <synch.h> + +static mutex_t _unixware_atomic = DEFAULTMUTEX; + +#define TEST_THEN_ADD(where, inc) \ + if (mutex_lock(&_unixware_atomic) != 0)\ + PR_ASSERT(0);\ + *where += inc;\ + if (mutex_unlock(&_unixware_atomic) != 0)\ + PR_ASSERT(0); + +#define TEST_THEN_SET(where, val) \ + if (mutex_lock(&_unixware_atomic) != 0)\ + PR_ASSERT(0);\ + *where = val;\ + if (mutex_unlock(&_unixware_atomic) != 0)\ + PR_ASSERT(0); + +void +_MD_INIT_ATOMIC(void) +{ +} + +void +_MD_ATOMIC_INCREMENT(PRInt32 *val) +{ + TEST_THEN_ADD(val, 1); +} + +void +_MD_ATOMIC_ADD(PRInt32 *ptr, PRInt32 val) +{ + TEST_THEN_ADD(ptr, val); +} + +void +_MD_ATOMIC_DECREMENT(PRInt32 *val) +{ + TEST_THEN_ADD(val, 0xffffffff); +} + +void +_MD_ATOMIC_SET(PRInt32 *val, PRInt32 newval) +{ + TEST_THEN_SET(val, newval); +} + +#include <signal.h> +#include <errno.h> +#include <fcntl.h> + +#include <sys/lwp.h> +#include <sys/procfs.h> +#include <sys/syscall.h> + + +THREAD_KEY_T threadid_key; +THREAD_KEY_T cpuid_key; +THREAD_KEY_T last_thread_key; +static sigset_t set, oldset; + +void _MD_EarlyInit(void) +{ + THR_KEYCREATE(&threadid_key, NULL); + THR_KEYCREATE(&cpuid_key, NULL); + THR_KEYCREATE(&last_thread_key, NULL); + sigemptyset(&set); + sigaddset(&set, SIGALRM); +} + +PRStatus _MD_CREATE_THREAD(PRThread *thread, + void (*start)(void *), + PRThreadPriority priority, + PRThreadScope scope, + PRThreadState state, + PRUint32 stackSize) +{ + long flags; + + /* mask out SIGALRM for native thread creation */ + thr_sigsetmask(SIG_BLOCK, &set, &oldset); + + flags = (state == PR_JOINABLE_THREAD ? THR_SUSPENDED/*|THR_NEW_LWP*/ + : THR_SUSPENDED|THR_DETACHED/*|THR_NEW_LWP*/); + if (_PR_IS_GCABLE_THREAD(thread) || + (scope == PR_GLOBAL_BOUND_THREAD)) { + flags |= THR_BOUND; + } + + if (thr_create(NULL, thread->stack->stackSize, + (void *(*)(void *)) start, (void *) thread, + flags, + &thread->md.handle)) { + thr_sigsetmask(SIG_SETMASK, &oldset, NULL); + return PR_FAILURE; + } + + + /* When the thread starts running, then the lwpid is set to the right + * value. Until then we want to mark this as 'uninit' so that + * its register state is initialized properly for GC */ + + thread->md.lwpid = -1; + thr_sigsetmask(SIG_SETMASK, &oldset, NULL); + _MD_NEW_SEM(&thread->md.waiter_sem, 0); + + if ((scope == PR_GLOBAL_THREAD) || (scope == PR_GLOBAL_BOUND_THREAD)) { + thread->flags |= _PR_GLOBAL_SCOPE; + } + + /* + ** Set the thread priority. This will also place the thread on + ** the runQ. + ** + ** Force PR_SetThreadPriority to set the priority by + ** setting thread->priority to 100. + */ + { + int pri; + pri = thread->priority; + thread->priority = 100; + PR_SetThreadPriority( thread, pri ); + + PR_LOG(_pr_thread_lm, PR_LOG_MIN, + ("(0X%x)[Start]: on to runq at priority %d", + thread, thread->priority)); + } + + /* Activate the thread */ + if (thr_continue( thread->md.handle ) ) { + return PR_FAILURE; + } + return PR_SUCCESS; +} + +void _MD_cleanup_thread(PRThread *thread) +{ + thread_t hdl; + PRMonitor *mon; + + hdl = thread->md.handle; + + /* + ** First, suspend the thread (unless it's the active one) + ** Because we suspend it first, we don't have to use LOCK_SCHEDULER to + ** prevent both of us modifying the thread structure at the same time. + */ + if ( thread != _PR_MD_CURRENT_THREAD() ) { + thr_suspend(hdl); + } + PR_LOG(_pr_thread_lm, PR_LOG_MIN, + ("(0X%x)[DestroyThread]\n", thread)); + + _MD_DESTROY_SEM(&thread->md.waiter_sem); +} + +void _MD_SET_PRIORITY(_MDThread *md_thread, PRUintn newPri) +{ + if(thr_setprio((thread_t)md_thread->handle, newPri)) { + PR_LOG(_pr_thread_lm, PR_LOG_MIN, + ("_PR_SetThreadPriority: can't set thread priority\n")); + } +} + +void _MD_WAIT_CV( + struct _MDCVar *md_cv, struct _MDLock *md_lock, PRIntervalTime timeout) +{ + struct timespec tt; + PRUint32 msec; + int rv; + PRThread *me = _PR_MD_CURRENT_THREAD(); + + msec = PR_IntervalToMilliseconds(timeout); + + GETTIME (&tt); + + tt.tv_sec += msec / PR_MSEC_PER_SEC; + tt.tv_nsec += (msec % PR_MSEC_PER_SEC) * PR_NSEC_PER_MSEC; + /* Check for nsec overflow - otherwise we'll get an EINVAL */ + if (tt.tv_nsec >= PR_NSEC_PER_SEC) { + tt.tv_sec++; + tt.tv_nsec -= PR_NSEC_PER_SEC; + } + me->md.sp = unixware_getsp(); + + + /* XXX Solaris 2.5.x gives back EINTR occasionally for no reason + * hence ignore EINTR for now */ + + COND_TIMEDWAIT(&md_cv->cv, &md_lock->lock, &tt); +} + +void _MD_lock(struct _MDLock *md_lock) +{ + mutex_lock(&md_lock->lock); +} + +void _MD_unlock(struct _MDLock *md_lock) +{ + mutex_unlock(&((md_lock)->lock)); +} + + +PRThread *_pr_current_thread_tls() +{ + PRThread *ret; + + thr_getspecific(threadid_key, (void **)&ret); + return ret; +} + +PRStatus +_MD_WAIT(PRThread *thread, PRIntervalTime ticks) +{ + _MD_WAIT_SEM(&thread->md.waiter_sem); + return PR_SUCCESS; +} + +PRStatus +_MD_WAKEUP_WAITER(PRThread *thread) +{ + if (thread == NULL) { + return PR_SUCCESS; + } + _MD_POST_SEM(&thread->md.waiter_sem); + return PR_SUCCESS; +} + +_PRCPU *_pr_current_cpu_tls() +{ + _PRCPU *ret; + + thr_getspecific(cpuid_key, (void **)&ret); + return ret; +} + +PRThread *_pr_last_thread_tls() +{ + PRThread *ret; + + thr_getspecific(last_thread_key, (void **)&ret); + return ret; +} + +_MDLock _pr_ioq_lock; + +void _MD_INIT_IO (void) +{ + _MD_NEW_LOCK(&_pr_ioq_lock); +} + +PRStatus _MD_InitializeThread(PRThread *thread) +{ + if (!_PR_IS_NATIVE_THREAD(thread)) { + return; + } + /* prime the sp; substract 4 so we don't hit the assert that + * curr sp > base_stack + */ + thread->md.sp = (uint_t) thread->stack->allocBase - sizeof(long); + thread->md.lwpid = _lwp_self(); + thread->md.handle = THR_SELF(); + + /* all threads on Solaris are global threads from NSPR's perspective + * since all of them are mapped to Solaris threads. + */ + thread->flags |= _PR_GLOBAL_SCOPE; + + /* For primordial/attached thread, we don't create an underlying native thread. + * So, _MD_CREATE_THREAD() does not get called. We need to do initialization + * like allocating thread's synchronization variables and set the underlying + * native thread's priority. + */ + if (thread->flags & (_PR_PRIMORDIAL | _PR_ATTACHED)) { + _MD_NEW_SEM(&thread->md.waiter_sem, 0); + _MD_SET_PRIORITY(&(thread->md), thread->priority); + } + return PR_SUCCESS; +} + +static sigset_t old_mask; /* store away original gc thread sigmask */ +static int gcprio; /* store away original gc thread priority */ +static lwpid_t *all_lwps=NULL; /* list of lwps that we suspended */ +static int num_lwps ; +static int suspendAllOn = 0; + +#define VALID_SP(sp, bottom, top) \ + (((uint_t)(sp)) > ((uint_t)(bottom)) && ((uint_t)(sp)) < ((uint_t)(top))) + +void unixware_preempt_off() +{ + sigset_t set; + (void)sigfillset(&set); + sigprocmask (SIG_SETMASK, &set, &old_mask); +} + +void unixware_preempt_on() +{ + sigprocmask (SIG_SETMASK, &old_mask, NULL); +} + +void _MD_Begin_SuspendAll() +{ + unixware_preempt_off(); + + PR_LOG(_pr_gc_lm, PR_LOG_ALWAYS, ("Begin_SuspendAll\n")); + /* run at highest prio so I cannot be preempted */ + thr_getprio(thr_self(), &gcprio); + thr_setprio(thr_self(), 0x7fffffff); + suspendAllOn = 1; +} + +void _MD_End_SuspendAll() +{ +} + +void _MD_End_ResumeAll() +{ + PR_LOG(_pr_gc_lm, PR_LOG_ALWAYS, ("End_ResumeAll\n")); + thr_setprio(thr_self(), gcprio); + unixware_preempt_on(); + suspendAllOn = 0; +} + +void _MD_Suspend(PRThread *thr) +{ + int lwp_fd, result; + int lwp_main_proc_fd = 0; + + thr_suspend(thr->md.handle); + if (!_PR_IS_GCABLE_THREAD(thr)) { + return; + } + /* XXX Primordial thread can't be bound to an lwp, hence there is no + * way we can assume that we can get the lwp status for primordial + * thread reliably. Hence we skip this for primordial thread, hoping + * that the SP is saved during lock and cond. wait. + * XXX - Again this is concern only for java interpreter, not for the + * server, 'cause primordial thread in the server does not do java work + */ + if (thr->flags & _PR_PRIMORDIAL) { + return; + } + + /* if the thread is not started yet then don't do anything */ + if (!suspendAllOn || thr->md.lwpid == -1) { + return; + } + +} +void _MD_Resume(PRThread *thr) +{ + if (!_PR_IS_GCABLE_THREAD(thr) || !suspendAllOn) { + /*XXX When the suspendAllOn is set, we will be trying to do lwp_suspend + * during that time we can't call any thread lib or libc calls. Hence + * make sure that no resume is requested for Non gcable thread + * during suspendAllOn */ + PR_ASSERT(!suspendAllOn); + thr_continue(thr->md.handle); + return; + } + if (thr->md.lwpid == -1) { + return; + } + + if ( _lwp_continue(thr->md.lwpid) < 0) { + PR_ASSERT(0); /* ARGH, we are hosed! */ + } +} + + +PRWord *_MD_HomeGCRegisters(PRThread *t, int isCurrent, int *np) +{ + if (isCurrent) { + (void) getcontext(CONTEXT(t)); /* XXX tune me: set md_IRIX.c */ + } + *np = NGREG; + if (t->md.lwpid == -1) { + memset(&t->md.context.uc_mcontext.gregs[0], 0, NGREG * sizeof(PRWord)); + } + return (PRWord*) &t->md.context.uc_mcontext.gregs[0]; +} + +int +_pr_unixware_clock_gettime (struct timespec *tp) +{ + struct timeval tv; + + gettimeofday(&tv, NULL); + tp->tv_sec = tv.tv_sec; + tp->tv_nsec = tv.tv_usec * 1000; + return 0; +} + + +#endif /* USE_SVR4_THREADS */ diff --git a/nsprpub/pr/src/md/unix/uxpoll.c b/nsprpub/pr/src/md/unix/uxpoll.c new file mode 100644 index 0000000000..d01121cbf1 --- /dev/null +++ b/nsprpub/pr/src/md/unix/uxpoll.c @@ -0,0 +1,722 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#if defined(_PR_PTHREADS) + +#error "This file should not be compiled" + +#else /* defined(_PR_PTHREADS) */ + +#include "primpl.h" + +#include <sys/time.h> + +#include <fcntl.h> +#ifdef _PR_USE_POLL +#include <poll.h> +#endif + +#if defined(_PR_USE_POLL) +static PRInt32 NativeThreadPoll( + PRPollDesc *pds, PRIntn npds, PRIntervalTime timeout) +{ + /* + * This function is mostly duplicated from ptio.s's PR_Poll(). + */ + PRInt32 ready = 0; + /* + * For restarting poll() if it is interrupted by a signal. + * We use these variables to figure out how much time has + * elapsed and how much of the timeout still remains. + */ + PRIntn index, msecs; + struct pollfd *syspoll = NULL; + PRIntervalTime start, elapsed, remaining; + + syspoll = (struct pollfd*)PR_MALLOC(npds * sizeof(struct pollfd)); + if (NULL == syspoll) + { + PR_SetError(PR_OUT_OF_MEMORY_ERROR, 0); + return -1; + } + for (index = 0; index < npds; ++index) + { + PRFileDesc *bottom; + PRInt16 in_flags_read = 0, in_flags_write = 0; + PRInt16 out_flags_read = 0, out_flags_write = 0; + + if ((NULL != pds[index].fd) && (0 != pds[index].in_flags)) + { + if (pds[index].in_flags & PR_POLL_READ) + { + in_flags_read = (pds[index].fd->methods->poll)( + pds[index].fd, + pds[index].in_flags & ~PR_POLL_WRITE, + &out_flags_read); + } + if (pds[index].in_flags & PR_POLL_WRITE) + { + in_flags_write = (pds[index].fd->methods->poll)( + pds[index].fd, + pds[index].in_flags & ~PR_POLL_READ, + &out_flags_write); + } + if ((0 != (in_flags_read & out_flags_read)) + || (0 != (in_flags_write & out_flags_write))) + { + /* this one is ready right now */ + if (0 == ready) + { + /* + * We will return without calling the system + * poll function. So zero the out_flags + * fields of all the poll descriptors before + * this one. + */ + int i; + for (i = 0; i < index; i++) + { + pds[i].out_flags = 0; + } + } + ready += 1; + pds[index].out_flags = out_flags_read | out_flags_write; + } + else + { + pds[index].out_flags = 0; /* pre-condition */ + /* now locate the NSPR layer at the bottom of the stack */ + bottom = PR_GetIdentitiesLayer(pds[index].fd, PR_NSPR_IO_LAYER); + PR_ASSERT(NULL != bottom); /* what to do about that? */ + if ((NULL != bottom) + && (_PR_FILEDESC_OPEN == bottom->secret->state)) + { + if (0 == ready) + { + syspoll[index].fd = bottom->secret->md.osfd; + syspoll[index].events = 0; /* pre-condition */ + if (in_flags_read & PR_POLL_READ) + { + pds[index].out_flags |= + _PR_POLL_READ_SYS_READ; + syspoll[index].events |= POLLIN; + } + if (in_flags_read & PR_POLL_WRITE) + { + pds[index].out_flags |= + _PR_POLL_READ_SYS_WRITE; + syspoll[index].events |= POLLOUT; + } + if (in_flags_write & PR_POLL_READ) + { + pds[index].out_flags |= + _PR_POLL_WRITE_SYS_READ; + syspoll[index].events |= POLLIN; + } + if (in_flags_write & PR_POLL_WRITE) + { + pds[index].out_flags |= + _PR_POLL_WRITE_SYS_WRITE; + syspoll[index].events |= POLLOUT; + } + if (pds[index].in_flags & PR_POLL_EXCEPT) { + syspoll[index].events |= POLLPRI; + } + } + } + else + { + if (0 == ready) + { + int i; + for (i = 0; i < index; i++) + { + pds[i].out_flags = 0; + } + } + ready += 1; /* this will cause an abrupt return */ + pds[index].out_flags = PR_POLL_NVAL; /* bogii */ + } + } + } + else + { + /* make poll() ignore this entry */ + syspoll[index].fd = -1; + syspoll[index].events = 0; + pds[index].out_flags = 0; + } + } + + if (0 == ready) + { + switch (timeout) + { + case PR_INTERVAL_NO_WAIT: msecs = 0; break; + case PR_INTERVAL_NO_TIMEOUT: msecs = -1; break; + default: + msecs = PR_IntervalToMilliseconds(timeout); + start = PR_IntervalNow(); + } + +retry: + ready = _MD_POLL(syspoll, npds, msecs); + if (-1 == ready) + { + PRIntn oserror = errno; + + if (EINTR == oserror) + { + if (timeout == PR_INTERVAL_NO_TIMEOUT) { + goto retry; + } + else if (timeout == PR_INTERVAL_NO_WAIT) { + ready = 0; + } + else + { + elapsed = (PRIntervalTime)(PR_IntervalNow() - start); + if (elapsed > timeout) { + ready = 0; /* timed out */ + } + else + { + remaining = timeout - elapsed; + msecs = PR_IntervalToMilliseconds(remaining); + goto retry; + } + } + } + else { + _PR_MD_MAP_POLL_ERROR(oserror); + } + } + else if (ready > 0) + { + for (index = 0; index < npds; ++index) + { + PRInt16 out_flags = 0; + if ((NULL != pds[index].fd) && (0 != pds[index].in_flags)) + { + if (0 != syspoll[index].revents) + { + /* + ** Set up the out_flags so that it contains the + ** bits that the highest layer thinks are nice + ** to have. Then the client of that layer will + ** call the appropriate I/O function and maybe + ** the protocol will make progress. + */ + if (syspoll[index].revents & POLLIN) + { + if (pds[index].out_flags + & _PR_POLL_READ_SYS_READ) + { + out_flags |= PR_POLL_READ; + } + if (pds[index].out_flags + & _PR_POLL_WRITE_SYS_READ) + { + out_flags |= PR_POLL_WRITE; + } + } + if (syspoll[index].revents & POLLOUT) + { + if (pds[index].out_flags + & _PR_POLL_READ_SYS_WRITE) + { + out_flags |= PR_POLL_READ; + } + if (pds[index].out_flags + & _PR_POLL_WRITE_SYS_WRITE) + { + out_flags |= PR_POLL_WRITE; + } + } + if (syspoll[index].revents & POLLPRI) { + out_flags |= PR_POLL_EXCEPT; + } + if (syspoll[index].revents & POLLERR) { + out_flags |= PR_POLL_ERR; + } + if (syspoll[index].revents & POLLNVAL) { + out_flags |= PR_POLL_NVAL; + } + if (syspoll[index].revents & POLLHUP) { + out_flags |= PR_POLL_HUP; + } + } + } + pds[index].out_flags = out_flags; + } + } + } + + PR_DELETE(syspoll); + return ready; + +} /* NativeThreadPoll */ +#endif /* defined(_PR_USE_POLL) */ + +#if !defined(_PR_USE_POLL) +static PRInt32 NativeThreadSelect( + PRPollDesc *pds, PRIntn npds, PRIntervalTime timeout) +{ + /* + * This code is almost a duplicate of w32poll.c's _PR_MD_PR_POLL(). + */ + fd_set rd, wt, ex; + PRFileDesc *bottom; + PRPollDesc *pd, *epd; + PRInt32 maxfd = -1, ready, err; + PRIntervalTime remaining, elapsed, start; + + struct timeval tv, *tvp = NULL; + + FD_ZERO(&rd); + FD_ZERO(&wt); + FD_ZERO(&ex); + + ready = 0; + for (pd = pds, epd = pd + npds; pd < epd; pd++) + { + PRInt16 in_flags_read = 0, in_flags_write = 0; + PRInt16 out_flags_read = 0, out_flags_write = 0; + + if ((NULL != pd->fd) && (0 != pd->in_flags)) + { + if (pd->in_flags & PR_POLL_READ) + { + in_flags_read = (pd->fd->methods->poll)( + pd->fd, pd->in_flags & ~PR_POLL_WRITE, &out_flags_read); + } + if (pd->in_flags & PR_POLL_WRITE) + { + in_flags_write = (pd->fd->methods->poll)( + pd->fd, pd->in_flags & ~PR_POLL_READ, &out_flags_write); + } + if ((0 != (in_flags_read & out_flags_read)) + || (0 != (in_flags_write & out_flags_write))) + { + /* this one's ready right now */ + if (0 == ready) + { + /* + * We will have to return without calling the + * system poll/select function. So zero the + * out_flags fields of all the poll descriptors + * before this one. + */ + PRPollDesc *prev; + for (prev = pds; prev < pd; prev++) + { + prev->out_flags = 0; + } + } + ready += 1; + pd->out_flags = out_flags_read | out_flags_write; + } + else + { + pd->out_flags = 0; /* pre-condition */ + + /* make sure this is an NSPR supported stack */ + bottom = PR_GetIdentitiesLayer(pd->fd, PR_NSPR_IO_LAYER); + PR_ASSERT(NULL != bottom); /* what to do about that? */ + if ((NULL != bottom) + && (_PR_FILEDESC_OPEN == bottom->secret->state)) + { + if (0 == ready) + { + PRInt32 osfd = bottom->secret->md.osfd; + if (osfd > maxfd) { + maxfd = osfd; + } + if (in_flags_read & PR_POLL_READ) + { + pd->out_flags |= _PR_POLL_READ_SYS_READ; + FD_SET(osfd, &rd); + } + if (in_flags_read & PR_POLL_WRITE) + { + pd->out_flags |= _PR_POLL_READ_SYS_WRITE; + FD_SET(osfd, &wt); + } + if (in_flags_write & PR_POLL_READ) + { + pd->out_flags |= _PR_POLL_WRITE_SYS_READ; + FD_SET(osfd, &rd); + } + if (in_flags_write & PR_POLL_WRITE) + { + pd->out_flags |= _PR_POLL_WRITE_SYS_WRITE; + FD_SET(osfd, &wt); + } + if (pd->in_flags & PR_POLL_EXCEPT) { + FD_SET(osfd, &ex); + } + } + } + else + { + if (0 == ready) + { + PRPollDesc *prev; + for (prev = pds; prev < pd; prev++) + { + prev->out_flags = 0; + } + } + ready += 1; /* this will cause an abrupt return */ + pd->out_flags = PR_POLL_NVAL; /* bogii */ + } + } + } + else + { + pd->out_flags = 0; + } + } + + if (0 != ready) { + return ready; /* no need to block */ + } + + remaining = timeout; + start = PR_IntervalNow(); + +retry: + if (timeout != PR_INTERVAL_NO_TIMEOUT) + { + PRInt32 ticksPerSecond = PR_TicksPerSecond(); + tv.tv_sec = remaining / ticksPerSecond; + tv.tv_usec = PR_IntervalToMicroseconds( remaining % ticksPerSecond ); + tvp = &tv; + } + + ready = _MD_SELECT(maxfd + 1, &rd, &wt, &ex, tvp); + + if (ready == -1 && errno == EINTR) + { + if (timeout == PR_INTERVAL_NO_TIMEOUT) { + goto retry; + } + else + { + elapsed = (PRIntervalTime) (PR_IntervalNow() - start); + if (elapsed > timeout) { + ready = 0; /* timed out */ + } + else + { + remaining = timeout - elapsed; + goto retry; + } + } + } + + /* + ** Now to unravel the select sets back into the client's poll + ** descriptor list. Is this possibly an area for pissing away + ** a few cycles or what? + */ + if (ready > 0) + { + ready = 0; + for (pd = pds, epd = pd + npds; pd < epd; pd++) + { + PRInt16 out_flags = 0; + if ((NULL != pd->fd) && (0 != pd->in_flags)) + { + PRInt32 osfd; + bottom = PR_GetIdentitiesLayer(pd->fd, PR_NSPR_IO_LAYER); + PR_ASSERT(NULL != bottom); + + osfd = bottom->secret->md.osfd; + + if (FD_ISSET(osfd, &rd)) + { + if (pd->out_flags & _PR_POLL_READ_SYS_READ) { + out_flags |= PR_POLL_READ; + } + if (pd->out_flags & _PR_POLL_WRITE_SYS_READ) { + out_flags |= PR_POLL_WRITE; + } + } + if (FD_ISSET(osfd, &wt)) + { + if (pd->out_flags & _PR_POLL_READ_SYS_WRITE) { + out_flags |= PR_POLL_READ; + } + if (pd->out_flags & _PR_POLL_WRITE_SYS_WRITE) { + out_flags |= PR_POLL_WRITE; + } + } + if (FD_ISSET(osfd, &ex)) { + out_flags |= PR_POLL_EXCEPT; + } + } + pd->out_flags = out_flags; + if (out_flags) { + ready++; + } + } + PR_ASSERT(ready > 0); + } + else if (ready < 0) + { + err = _MD_ERRNO(); + if (err == EBADF) + { + /* Find the bad fds */ + ready = 0; + for (pd = pds, epd = pd + npds; pd < epd; pd++) + { + pd->out_flags = 0; + if ((NULL != pd->fd) && (0 != pd->in_flags)) + { + bottom = PR_GetIdentitiesLayer(pd->fd, PR_NSPR_IO_LAYER); + if (fcntl(bottom->secret->md.osfd, F_GETFL, 0) == -1) + { + pd->out_flags = PR_POLL_NVAL; + ready++; + } + } + } + PR_ASSERT(ready > 0); + } + else { + _PR_MD_MAP_SELECT_ERROR(err); + } + } + + return ready; +} /* NativeThreadSelect */ +#endif /* !defined(_PR_USE_POLL) */ + +static PRInt32 LocalThreads( + PRPollDesc *pds, PRIntn npds, PRIntervalTime timeout) +{ + PRPollDesc *pd, *epd; + PRInt32 ready, pdcnt; + _PRUnixPollDesc *unixpds, *unixpd; + + /* + * XXX + * PRPollDesc has a PRFileDesc field, fd, while the IOQ + * is a list of PRPollQueue structures, each of which contains + * a _PRUnixPollDesc. A _PRUnixPollDesc struct contains + * the OS file descriptor, osfd, and not a PRFileDesc. + * So, we have allocate memory for _PRUnixPollDesc structures, + * copy the flags information from the pds list and have pq + * point to this list of _PRUnixPollDesc structures. + * + * It would be better if the memory allocation can be avoided. + */ + + unixpd = unixpds = (_PRUnixPollDesc*) + PR_MALLOC(npds * sizeof(_PRUnixPollDesc)); + if (NULL == unixpds) + { + PR_SetError(PR_OUT_OF_MEMORY_ERROR, 0); + return -1; + } + + ready = 0; + for (pdcnt = 0, pd = pds, epd = pd + npds; pd < epd; pd++) + { + PRFileDesc *bottom; + PRInt16 in_flags_read = 0, in_flags_write = 0; + PRInt16 out_flags_read = 0, out_flags_write = 0; + + if ((NULL != pd->fd) && (0 != pd->in_flags)) + { + if (pd->in_flags & PR_POLL_READ) + { + in_flags_read = (pd->fd->methods->poll)( + pd->fd, pd->in_flags & ~PR_POLL_WRITE, &out_flags_read); + } + if (pd->in_flags & PR_POLL_WRITE) + { + in_flags_write = (pd->fd->methods->poll)( + pd->fd, pd->in_flags & ~PR_POLL_READ, &out_flags_write); + } + if ((0 != (in_flags_read & out_flags_read)) + || (0 != (in_flags_write & out_flags_write))) + { + /* this one's ready right now */ + if (0 == ready) + { + /* + * We will have to return without calling the + * system poll/select function. So zero the + * out_flags fields of all the poll descriptors + * before this one. + */ + PRPollDesc *prev; + for (prev = pds; prev < pd; prev++) + { + prev->out_flags = 0; + } + } + ready += 1; + pd->out_flags = out_flags_read | out_flags_write; + } + else + { + pd->out_flags = 0; /* pre-condition */ + bottom = PR_GetIdentitiesLayer(pd->fd, PR_NSPR_IO_LAYER); + PR_ASSERT(NULL != bottom); /* what to do about that? */ + if ((NULL != bottom) + && (_PR_FILEDESC_OPEN == bottom->secret->state)) + { + if (0 == ready) + { + unixpd->osfd = bottom->secret->md.osfd; + unixpd->in_flags = 0; + if (in_flags_read & PR_POLL_READ) + { + unixpd->in_flags |= _PR_UNIX_POLL_READ; + pd->out_flags |= _PR_POLL_READ_SYS_READ; + } + if (in_flags_read & PR_POLL_WRITE) + { + unixpd->in_flags |= _PR_UNIX_POLL_WRITE; + pd->out_flags |= _PR_POLL_READ_SYS_WRITE; + } + if (in_flags_write & PR_POLL_READ) + { + unixpd->in_flags |= _PR_UNIX_POLL_READ; + pd->out_flags |= _PR_POLL_WRITE_SYS_READ; + } + if (in_flags_write & PR_POLL_WRITE) + { + unixpd->in_flags |= _PR_UNIX_POLL_WRITE; + pd->out_flags |= _PR_POLL_WRITE_SYS_WRITE; + } + if ((in_flags_read | in_flags_write) & PR_POLL_EXCEPT) + { + unixpd->in_flags |= _PR_UNIX_POLL_EXCEPT; + } + unixpd++; pdcnt++; + } + } + else + { + if (0 == ready) + { + PRPollDesc *prev; + for (prev = pds; prev < pd; prev++) + { + prev->out_flags = 0; + } + } + ready += 1; /* this will cause an abrupt return */ + pd->out_flags = PR_POLL_NVAL; /* bogii */ + } + } + } + } + + if (0 != ready) + { + /* no need to block */ + PR_DELETE(unixpds); + return ready; + } + + ready = _PR_WaitForMultipleFDs(unixpds, pdcnt, timeout); + + /* + * Copy the out_flags from the _PRUnixPollDesc structures to the + * user's PRPollDesc structures and free the allocated memory + */ + unixpd = unixpds; + for (pd = pds, epd = pd + npds; pd < epd; pd++) + { + PRInt16 out_flags = 0; + if ((NULL != pd->fd) && (0 != pd->in_flags)) + { + /* + * take errors from the poll operation, + * the R/W bits from the request + */ + if (0 != unixpd->out_flags) + { + if (unixpd->out_flags & _PR_UNIX_POLL_READ) + { + if (pd->out_flags & _PR_POLL_READ_SYS_READ) { + out_flags |= PR_POLL_READ; + } + if (pd->out_flags & _PR_POLL_WRITE_SYS_READ) { + out_flags |= PR_POLL_WRITE; + } + } + if (unixpd->out_flags & _PR_UNIX_POLL_WRITE) + { + if (pd->out_flags & _PR_POLL_READ_SYS_WRITE) { + out_flags |= PR_POLL_READ; + } + if (pd->out_flags & _PR_POLL_WRITE_SYS_WRITE) { + out_flags |= PR_POLL_WRITE; + } + } + if (unixpd->out_flags & _PR_UNIX_POLL_EXCEPT) { + out_flags |= PR_POLL_EXCEPT; + } + if (unixpd->out_flags & _PR_UNIX_POLL_ERR) { + out_flags |= PR_POLL_ERR; + } + if (unixpd->out_flags & _PR_UNIX_POLL_NVAL) { + out_flags |= PR_POLL_NVAL; + } + if (unixpd->out_flags & _PR_UNIX_POLL_HUP) { + out_flags |= PR_POLL_HUP; + } + } + unixpd++; + } + pd->out_flags = out_flags; + } + + PR_DELETE(unixpds); + + return ready; +} /* LocalThreads */ + +#if defined(_PR_USE_POLL) +#define NativeThreads NativeThreadPoll +#else +#define NativeThreads NativeThreadSelect +#endif + +PRInt32 _MD_pr_poll(PRPollDesc *pds, PRIntn npds, PRIntervalTime timeout) +{ + PRInt32 rv = 0; + PRThread *me = _PR_MD_CURRENT_THREAD(); + + if (_PR_PENDING_INTERRUPT(me)) + { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + return -1; + } + if (0 == npds) { + PR_Sleep(timeout); + } + else if (_PR_IS_NATIVE_THREAD(me)) { + rv = NativeThreads(pds, npds, timeout); + } + else { + rv = LocalThreads(pds, npds, timeout); + } + + return rv; +} /* _MD_pr_poll */ + +#endif /* defined(_PR_PTHREADS) */ + +/* uxpoll.c */ + diff --git a/nsprpub/pr/src/md/unix/uxproces.c b/nsprpub/pr/src/md/unix/uxproces.c new file mode 100644 index 0000000000..4216c04424 --- /dev/null +++ b/nsprpub/pr/src/md/unix/uxproces.c @@ -0,0 +1,877 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "primpl.h" + +#include <sys/types.h> +#include <unistd.h> +#include <fcntl.h> +#include <signal.h> +#include <sys/wait.h> +#include <string.h> +#if defined(AIX) +#include <dlfcn.h> /* For dlopen, dlsym, dlclose */ +#endif + +#if defined(DARWIN) +#if defined(HAVE_CRT_EXTERNS_H) +#include <crt_externs.h> +#endif +#else +PR_IMPORT_DATA(char **) environ; +#endif + +/* + * HP-UX 9 doesn't have the SA_RESTART flag. + */ +#ifndef SA_RESTART +#define SA_RESTART 0 +#endif + +/* + ********************************************************************** + * + * The Unix process routines + * + ********************************************************************** + */ + +#define _PR_SIGNALED_EXITSTATUS 256 + +typedef enum pr_PidState { + _PR_PID_DETACHED, + _PR_PID_REAPED, + _PR_PID_WAITING +} pr_PidState; + +typedef struct pr_PidRecord { + pid_t pid; + int exitStatus; + pr_PidState state; + PRCondVar *reapedCV; + struct pr_PidRecord *next; +} pr_PidRecord; + +/* + * LinuxThreads are actually a kind of processes + * that can share the virtual address space and file descriptors. + */ +#if ((defined(LINUX) || defined(__GNU__) || defined(__GLIBC__)) \ + && defined(_PR_PTHREADS)) +#define _PR_SHARE_CLONES +#endif + +/* + * The macro _PR_NATIVE_THREADS indicates that we are + * using native threads only, so waitpid() blocks just the + * calling thread, not the process. In this case, the waitpid + * daemon thread can safely block in waitpid(). So we don't + * need to catch SIGCHLD, and the pipe to unblock PR_Poll() is + * also not necessary. + */ + +#if defined(_PR_GLOBAL_THREADS_ONLY) \ + || (defined(_PR_PTHREADS) \ + && !defined(LINUX) && !defined(__GNU__) && !defined(__GLIBC__)) +#define _PR_NATIVE_THREADS +#endif + +/* + * All the static variables used by the Unix process routines are + * collected in this structure. + */ + +static struct { + PRCallOnceType once; + PRThread *thread; + PRLock *ml; +#if defined(_PR_NATIVE_THREADS) + PRInt32 numProcs; + PRCondVar *cv; +#else + int pipefd[2]; +#endif + pr_PidRecord **pidTable; + +#ifdef _PR_SHARE_CLONES + struct pr_CreateProcOp *opHead, *opTail; +#endif + +#ifdef AIX + pid_t (*forkptr)(void); /* Newer versions of AIX (starting in 4.3.2) + * have f_fork, which is faster than the + * regular fork in a multithreaded process + * because it skips calling the fork handlers. + * So we look up the f_fork symbol to see if + * it's available and fall back on fork. + */ +#endif /* AIX */ +} pr_wp; + +#ifdef _PR_SHARE_CLONES +static int pr_waitpid_daemon_exit; + +void +_MD_unix_terminate_waitpid_daemon(void) +{ + if (pr_wp.thread) { + pr_waitpid_daemon_exit = 1; + write(pr_wp.pipefd[1], "", 1); + PR_JoinThread(pr_wp.thread); + } +} +#endif + +static PRStatus _MD_InitProcesses(void); +#if !defined(_PR_NATIVE_THREADS) +static void pr_InstallSigchldHandler(void); +#endif + +static PRProcess * +ForkAndExec( + const char *path, + char *const *argv, + char *const *envp, + const PRProcessAttr *attr) +{ + PRProcess *process; + int nEnv, idx; + char *const *childEnvp; + char **newEnvp = NULL; + int flags; + + process = PR_NEW(PRProcess); + if (!process) { + PR_SetError(PR_OUT_OF_MEMORY_ERROR, 0); + return NULL; + } + + childEnvp = envp; + if (attr && attr->fdInheritBuffer) { + PRBool found = PR_FALSE; + + if (NULL == childEnvp) { +#ifdef DARWIN +#ifdef HAVE_CRT_EXTERNS_H + childEnvp = *(_NSGetEnviron()); +#else + /* _NSGetEnviron() is not available on iOS. */ + PR_DELETE(process); + PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0); + return NULL; +#endif +#else + childEnvp = environ; +#endif + } + + for (nEnv = 0; childEnvp[nEnv]; nEnv++) { + } + newEnvp = (char **) PR_MALLOC((nEnv + 2) * sizeof(char *)); + if (NULL == newEnvp) { + PR_DELETE(process); + PR_SetError(PR_OUT_OF_MEMORY_ERROR, 0); + return NULL; + } + for (idx = 0; idx < nEnv; idx++) { + newEnvp[idx] = childEnvp[idx]; + if (!found && !strncmp(newEnvp[idx], "NSPR_INHERIT_FDS=", 17)) { + newEnvp[idx] = attr->fdInheritBuffer; + found = PR_TRUE; + } + } + if (!found) { + newEnvp[idx++] = attr->fdInheritBuffer; + } + newEnvp[idx] = NULL; + childEnvp = newEnvp; + } + +#ifdef AIX + process->md.pid = (*pr_wp.forkptr)(); +#elif defined(NTO) + /* + * fork() & exec() does not work in a multithreaded process. + * Use spawn() instead. + */ + { + int fd_map[3] = { 0, 1, 2 }; + + if (attr) { + if (attr->stdinFd && attr->stdinFd->secret->md.osfd != 0) { + fd_map[0] = dup(attr->stdinFd->secret->md.osfd); + flags = fcntl(fd_map[0], F_GETFL, 0); + if (flags & O_NONBLOCK) { + fcntl(fd_map[0], F_SETFL, flags & ~O_NONBLOCK); + } + } + if (attr->stdoutFd && attr->stdoutFd->secret->md.osfd != 1) { + fd_map[1] = dup(attr->stdoutFd->secret->md.osfd); + flags = fcntl(fd_map[1], F_GETFL, 0); + if (flags & O_NONBLOCK) { + fcntl(fd_map[1], F_SETFL, flags & ~O_NONBLOCK); + } + } + if (attr->stderrFd && attr->stderrFd->secret->md.osfd != 2) { + fd_map[2] = dup(attr->stderrFd->secret->md.osfd); + flags = fcntl(fd_map[2], F_GETFL, 0); + if (flags & O_NONBLOCK) { + fcntl(fd_map[2], F_SETFL, flags & ~O_NONBLOCK); + } + } + + PR_ASSERT(attr->currentDirectory == NULL); /* not implemented */ + } + + process->md.pid = spawn(path, 3, fd_map, NULL, argv, childEnvp); + + if (fd_map[0] != 0) { + close(fd_map[0]); + } + if (fd_map[1] != 1) { + close(fd_map[1]); + } + if (fd_map[2] != 2) { + close(fd_map[2]); + } + } +#else + process->md.pid = fork(); +#endif + if ((pid_t) -1 == process->md.pid) { + PR_SetError(PR_INSUFFICIENT_RESOURCES_ERROR, errno); + PR_DELETE(process); + if (newEnvp) { + PR_DELETE(newEnvp); + } + return NULL; + } + if (0 == process->md.pid) { /* the child process */ + /* + * If the child process needs to exit, it must call _exit(). + * Do not call exit(), because exit() will flush and close + * the standard I/O file descriptors, and hence corrupt + * the parent process's standard I/O data structures. + */ + +#if !defined(NTO) + if (attr) { + /* the osfd's to redirect stdin, stdout, and stderr to */ + int in_osfd = -1, out_osfd = -1, err_osfd = -1; + + if (attr->stdinFd + && attr->stdinFd->secret->md.osfd != 0) { + in_osfd = attr->stdinFd->secret->md.osfd; + if (dup2(in_osfd, 0) != 0) { + _exit(1); /* failed */ + } + flags = fcntl(0, F_GETFL, 0); + if (flags & O_NONBLOCK) { + fcntl(0, F_SETFL, flags & ~O_NONBLOCK); + } + } + if (attr->stdoutFd + && attr->stdoutFd->secret->md.osfd != 1) { + out_osfd = attr->stdoutFd->secret->md.osfd; + if (dup2(out_osfd, 1) != 1) { + _exit(1); /* failed */ + } + flags = fcntl(1, F_GETFL, 0); + if (flags & O_NONBLOCK) { + fcntl(1, F_SETFL, flags & ~O_NONBLOCK); + } + } + if (attr->stderrFd + && attr->stderrFd->secret->md.osfd != 2) { + err_osfd = attr->stderrFd->secret->md.osfd; + if (dup2(err_osfd, 2) != 2) { + _exit(1); /* failed */ + } + flags = fcntl(2, F_GETFL, 0); + if (flags & O_NONBLOCK) { + fcntl(2, F_SETFL, flags & ~O_NONBLOCK); + } + } + if (in_osfd != -1) { + close(in_osfd); + } + if (out_osfd != -1 && out_osfd != in_osfd) { + close(out_osfd); + } + if (err_osfd != -1 && err_osfd != in_osfd + && err_osfd != out_osfd) { + close(err_osfd); + } + if (attr->currentDirectory) { + if (chdir(attr->currentDirectory) < 0) { + _exit(1); /* failed */ + } + } + } + + if (childEnvp) { + (void)execve(path, argv, childEnvp); + } else { + /* Inherit the environment of the parent. */ + (void)execv(path, argv); + } + /* Whoops! It returned. That's a bad sign. */ + _exit(1); +#endif /* !NTO */ + } + + if (newEnvp) { + PR_DELETE(newEnvp); + } + +#if defined(_PR_NATIVE_THREADS) + PR_Lock(pr_wp.ml); + if (0 == pr_wp.numProcs++) { + PR_NotifyCondVar(pr_wp.cv); + } + PR_Unlock(pr_wp.ml); +#endif + return process; +} + +#ifdef _PR_SHARE_CLONES + +struct pr_CreateProcOp { + const char *path; + char *const *argv; + char *const *envp; + const PRProcessAttr *attr; + PRProcess *process; + PRErrorCode prerror; + PRInt32 oserror; + PRBool done; + PRCondVar *doneCV; + struct pr_CreateProcOp *next; +}; + +PRProcess * +_MD_CreateUnixProcess( + const char *path, + char *const *argv, + char *const *envp, + const PRProcessAttr *attr) +{ + struct pr_CreateProcOp *op; + PRProcess *proc; + int rv; + + if (PR_CallOnce(&pr_wp.once, _MD_InitProcesses) == PR_FAILURE) { + return NULL; + } + + op = PR_NEW(struct pr_CreateProcOp); + if (NULL == op) { + PR_SetError(PR_OUT_OF_MEMORY_ERROR, 0); + return NULL; + } + op->path = path; + op->argv = argv; + op->envp = envp; + op->attr = attr; + op->done = PR_FALSE; + op->doneCV = PR_NewCondVar(pr_wp.ml); + if (NULL == op->doneCV) { + PR_DELETE(op); + return NULL; + } + PR_Lock(pr_wp.ml); + + /* add to the tail of op queue */ + op->next = NULL; + if (pr_wp.opTail) { + pr_wp.opTail->next = op; + pr_wp.opTail = op; + } else { + PR_ASSERT(NULL == pr_wp.opHead); + pr_wp.opHead = pr_wp.opTail = op; + } + + /* wake up the daemon thread */ + do { + rv = write(pr_wp.pipefd[1], "", 1); + } while (-1 == rv && EINTR == errno); + + while (op->done == PR_FALSE) { + PR_WaitCondVar(op->doneCV, PR_INTERVAL_NO_TIMEOUT); + } + PR_Unlock(pr_wp.ml); + PR_DestroyCondVar(op->doneCV); + proc = op->process; + if (!proc) { + PR_SetError(op->prerror, op->oserror); + } + PR_DELETE(op); + return proc; +} + +#else /* ! _PR_SHARE_CLONES */ + +PRProcess * +_MD_CreateUnixProcess( + const char *path, + char *const *argv, + char *const *envp, + const PRProcessAttr *attr) +{ + if (PR_CallOnce(&pr_wp.once, _MD_InitProcesses) == PR_FAILURE) { + return NULL; + } + return ForkAndExec(path, argv, envp, attr); +} /* _MD_CreateUnixProcess */ + +#endif /* _PR_SHARE_CLONES */ + +/* + * The pid table is a hashtable. + * + * The number of buckets in the hashtable (NBUCKETS) must be a power of 2. + */ +#define NBUCKETS_LOG2 6 +#define NBUCKETS (1 << NBUCKETS_LOG2) +#define PID_HASH_MASK ((pid_t) (NBUCKETS - 1)) + +static pr_PidRecord * +FindPidTable(pid_t pid) +{ + pr_PidRecord *pRec; + int keyHash = (int) (pid & PID_HASH_MASK); + + pRec = pr_wp.pidTable[keyHash]; + while (pRec) { + if (pRec->pid == pid) { + break; + } + pRec = pRec->next; + } + return pRec; +} + +static void +InsertPidTable(pr_PidRecord *pRec) +{ + int keyHash = (int) (pRec->pid & PID_HASH_MASK); + + pRec->next = pr_wp.pidTable[keyHash]; + pr_wp.pidTable[keyHash] = pRec; +} + +static void +DeletePidTable(pr_PidRecord *pRec) +{ + int keyHash = (int) (pRec->pid & PID_HASH_MASK); + + if (pr_wp.pidTable[keyHash] == pRec) { + pr_wp.pidTable[keyHash] = pRec->next; + } else { + pr_PidRecord *pred, *cur; /* predecessor and current */ + + pred = pr_wp.pidTable[keyHash]; + cur = pred->next; + while (cur) { + if (cur == pRec) { + pred->next = cur->next; + break; + } + pred = cur; + cur = cur->next; + } + PR_ASSERT(cur != NULL); + } +} + +static int +ExtractExitStatus(int rawExitStatus) +{ + /* + * We did not specify the WCONTINUED and WUNTRACED options + * for waitpid, so these two events should not be reported. + */ + PR_ASSERT(!WIFSTOPPED(rawExitStatus)); +#ifdef WIFCONTINUED + PR_ASSERT(!WIFCONTINUED(rawExitStatus)); +#endif + if (WIFEXITED(rawExitStatus)) { + return WEXITSTATUS(rawExitStatus); + } + PR_ASSERT(WIFSIGNALED(rawExitStatus)); + return _PR_SIGNALED_EXITSTATUS; +} + +static void +ProcessReapedChildInternal(pid_t pid, int status) +{ + pr_PidRecord *pRec; + + pRec = FindPidTable(pid); + if (NULL == pRec) { + pRec = PR_NEW(pr_PidRecord); + pRec->pid = pid; + pRec->state = _PR_PID_REAPED; + pRec->exitStatus = ExtractExitStatus(status); + pRec->reapedCV = NULL; + InsertPidTable(pRec); + } else { + PR_ASSERT(pRec->state != _PR_PID_REAPED); + if (_PR_PID_DETACHED == pRec->state) { + PR_ASSERT(NULL == pRec->reapedCV); + DeletePidTable(pRec); + PR_DELETE(pRec); + } else { + PR_ASSERT(_PR_PID_WAITING == pRec->state); + PR_ASSERT(NULL != pRec->reapedCV); + pRec->exitStatus = ExtractExitStatus(status); + pRec->state = _PR_PID_REAPED; + PR_NotifyCondVar(pRec->reapedCV); + } + } +} + +#if defined(_PR_NATIVE_THREADS) + +/* + * If all the threads are native threads, the daemon thread is + * simpler. We don't need to catch the SIGCHLD signal. We can + * just have the daemon thread block in waitpid(). + */ + +static void WaitPidDaemonThread(void *unused) +{ + pid_t pid; + int status; + + while (1) { + PR_Lock(pr_wp.ml); + while (0 == pr_wp.numProcs) { + PR_WaitCondVar(pr_wp.cv, PR_INTERVAL_NO_TIMEOUT); + } + PR_Unlock(pr_wp.ml); + + while (1) { + do { + pid = waitpid((pid_t) -1, &status, 0); + } while ((pid_t) -1 == pid && EINTR == errno); + + /* + * waitpid() cannot return 0 because we did not invoke it + * with the WNOHANG option. + */ + PR_ASSERT(0 != pid); + + /* + * The only possible error code is ECHILD. But if we do + * our accounting correctly, we should only call waitpid() + * when there is a child process to wait for. + */ + PR_ASSERT((pid_t) -1 != pid); + if ((pid_t) -1 == pid) { + break; + } + + PR_Lock(pr_wp.ml); + ProcessReapedChildInternal(pid, status); + pr_wp.numProcs--; + while (0 == pr_wp.numProcs) { + PR_WaitCondVar(pr_wp.cv, PR_INTERVAL_NO_TIMEOUT); + } + PR_Unlock(pr_wp.ml); + } + } +} + +#else /* _PR_NATIVE_THREADS */ + +static void WaitPidDaemonThread(void *unused) +{ + PRPollDesc pd; + PRFileDesc *fd; + int rv; + char buf[128]; + pid_t pid; + int status; +#ifdef _PR_SHARE_CLONES + struct pr_CreateProcOp *op; +#endif + +#ifdef _PR_SHARE_CLONES + pr_InstallSigchldHandler(); +#endif + + fd = PR_ImportFile(pr_wp.pipefd[0]); + PR_ASSERT(NULL != fd); + pd.fd = fd; + pd.in_flags = PR_POLL_READ; + + while (1) { + rv = PR_Poll(&pd, 1, PR_INTERVAL_NO_TIMEOUT); + PR_ASSERT(1 == rv); + +#ifdef _PR_SHARE_CLONES + if (pr_waitpid_daemon_exit) { + return; + } + PR_Lock(pr_wp.ml); +#endif + + do { + rv = read(pr_wp.pipefd[0], buf, sizeof(buf)); + } while (sizeof(buf) == rv || (-1 == rv && EINTR == errno)); + +#ifdef _PR_SHARE_CLONES + while ((op = pr_wp.opHead) != NULL) { + PR_Unlock(pr_wp.ml); + op->process = ForkAndExec(op->path, op->argv, + op->envp, op->attr); + if (NULL == op->process) { + op->prerror = PR_GetError(); + op->oserror = PR_GetOSError(); + } + PR_Lock(pr_wp.ml); + pr_wp.opHead = op->next; + if (NULL == pr_wp.opHead) { + pr_wp.opTail = NULL; + } + op->done = PR_TRUE; + PR_NotifyCondVar(op->doneCV); + } + PR_Unlock(pr_wp.ml); +#endif + + while (1) { + do { + pid = waitpid((pid_t) -1, &status, WNOHANG); + } while ((pid_t) -1 == pid && EINTR == errno); + if (0 == pid) { + break; + } + if ((pid_t) -1 == pid) { + /* must be because we have no child processes */ + PR_ASSERT(ECHILD == errno); + break; + } + + PR_Lock(pr_wp.ml); + ProcessReapedChildInternal(pid, status); + PR_Unlock(pr_wp.ml); + } + } +} + +static void pr_SigchldHandler(int sig) +{ + int errnoCopy; + int rv; + + errnoCopy = errno; + + do { + rv = write(pr_wp.pipefd[1], "", 1); + } while (-1 == rv && EINTR == errno); + +#ifdef DEBUG + if (-1 == rv && EAGAIN != errno && EWOULDBLOCK != errno) { + char *msg = "cannot write to pipe\n"; + write(2, msg, strlen(msg) + 1); + _exit(1); + } +#endif + + errno = errnoCopy; +} + +static void pr_InstallSigchldHandler() +{ + struct sigaction act, oact; + int rv; + + act.sa_handler = pr_SigchldHandler; + sigemptyset(&act.sa_mask); + act.sa_flags = SA_NOCLDSTOP | SA_RESTART; + rv = sigaction(SIGCHLD, &act, &oact); + PR_ASSERT(0 == rv); + /* Make sure we are not overriding someone else's SIGCHLD handler */ +#ifndef _PR_SHARE_CLONES + PR_ASSERT(oact.sa_handler == SIG_DFL); +#endif +} + +#endif /* !defined(_PR_NATIVE_THREADS) */ + +static PRStatus _MD_InitProcesses(void) +{ +#if !defined(_PR_NATIVE_THREADS) + int rv; + int flags; +#endif + +#ifdef AIX + { + void *handle = dlopen(NULL, RTLD_NOW | RTLD_GLOBAL); + pr_wp.forkptr = (pid_t (*)(void)) dlsym(handle, "f_fork"); + if (!pr_wp.forkptr) { + pr_wp.forkptr = fork; + } + dlclose(handle); + } +#endif /* AIX */ + + pr_wp.ml = PR_NewLock(); + PR_ASSERT(NULL != pr_wp.ml); + +#if defined(_PR_NATIVE_THREADS) + pr_wp.numProcs = 0; + pr_wp.cv = PR_NewCondVar(pr_wp.ml); + PR_ASSERT(NULL != pr_wp.cv); +#else + rv = pipe(pr_wp.pipefd); + PR_ASSERT(0 == rv); + flags = fcntl(pr_wp.pipefd[0], F_GETFL, 0); + fcntl(pr_wp.pipefd[0], F_SETFL, flags | O_NONBLOCK); + flags = fcntl(pr_wp.pipefd[1], F_GETFL, 0); + fcntl(pr_wp.pipefd[1], F_SETFL, flags | O_NONBLOCK); + +#ifndef _PR_SHARE_CLONES + pr_InstallSigchldHandler(); +#endif +#endif /* !_PR_NATIVE_THREADS */ + + pr_wp.thread = PR_CreateThread(PR_SYSTEM_THREAD, + WaitPidDaemonThread, NULL, PR_PRIORITY_NORMAL, +#ifdef _PR_SHARE_CLONES + PR_GLOBAL_THREAD, +#else + PR_LOCAL_THREAD, +#endif + PR_JOINABLE_THREAD, 0); + PR_ASSERT(NULL != pr_wp.thread); + + pr_wp.pidTable = (pr_PidRecord**)PR_CALLOC(NBUCKETS * sizeof(pr_PidRecord *)); + PR_ASSERT(NULL != pr_wp.pidTable); + return PR_SUCCESS; +} + +PRStatus _MD_DetachUnixProcess(PRProcess *process) +{ + PRStatus retVal = PR_SUCCESS; + pr_PidRecord *pRec; + + PR_Lock(pr_wp.ml); + pRec = FindPidTable(process->md.pid); + if (NULL == pRec) { + pRec = PR_NEW(pr_PidRecord); + if (NULL == pRec) { + PR_SetError(PR_OUT_OF_MEMORY_ERROR, 0); + retVal = PR_FAILURE; + goto done; + } + pRec->pid = process->md.pid; + pRec->state = _PR_PID_DETACHED; + pRec->reapedCV = NULL; + InsertPidTable(pRec); + } else { + PR_ASSERT(_PR_PID_REAPED == pRec->state); + if (_PR_PID_REAPED != pRec->state) { + PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0); + retVal = PR_FAILURE; + } else { + DeletePidTable(pRec); + PR_ASSERT(NULL == pRec->reapedCV); + PR_DELETE(pRec); + } + } + PR_DELETE(process); + +done: + PR_Unlock(pr_wp.ml); + return retVal; +} + +PRStatus _MD_WaitUnixProcess( + PRProcess *process, + PRInt32 *exitCode) +{ + pr_PidRecord *pRec; + PRStatus retVal = PR_SUCCESS; + PRBool interrupted = PR_FALSE; + + PR_Lock(pr_wp.ml); + pRec = FindPidTable(process->md.pid); + if (NULL == pRec) { + pRec = PR_NEW(pr_PidRecord); + if (NULL == pRec) { + PR_SetError(PR_OUT_OF_MEMORY_ERROR, 0); + retVal = PR_FAILURE; + goto done; + } + pRec->pid = process->md.pid; + pRec->state = _PR_PID_WAITING; + pRec->reapedCV = PR_NewCondVar(pr_wp.ml); + if (NULL == pRec->reapedCV) { + PR_DELETE(pRec); + retVal = PR_FAILURE; + goto done; + } + InsertPidTable(pRec); + while (!interrupted && _PR_PID_REAPED != pRec->state) { + if (PR_WaitCondVar(pRec->reapedCV, + PR_INTERVAL_NO_TIMEOUT) == PR_FAILURE + && PR_GetError() == PR_PENDING_INTERRUPT_ERROR) { + interrupted = PR_TRUE; + } + } + if (_PR_PID_REAPED == pRec->state) { + if (exitCode) { + *exitCode = pRec->exitStatus; + } + } else { + PR_ASSERT(interrupted); + retVal = PR_FAILURE; + } + DeletePidTable(pRec); + PR_DestroyCondVar(pRec->reapedCV); + PR_DELETE(pRec); + } else { + PR_ASSERT(_PR_PID_REAPED == pRec->state); + PR_ASSERT(NULL == pRec->reapedCV); + DeletePidTable(pRec); + if (exitCode) { + *exitCode = pRec->exitStatus; + } + PR_DELETE(pRec); + } + PR_DELETE(process); + +done: + PR_Unlock(pr_wp.ml); + return retVal; +} /* _MD_WaitUnixProcess */ + +PRStatus _MD_KillUnixProcess(PRProcess *process) +{ + PRErrorCode prerror; + PRInt32 oserror; + + if (kill(process->md.pid, SIGKILL) == 0) { + return PR_SUCCESS; + } + oserror = errno; + switch (oserror) { + case EPERM: + prerror = PR_NO_ACCESS_RIGHTS_ERROR; + break; + case ESRCH: + prerror = PR_INVALID_ARGUMENT_ERROR; + break; + default: + prerror = PR_UNKNOWN_ERROR; + break; + } + PR_SetError(prerror, oserror); + return PR_FAILURE; +} /* _MD_KillUnixProcess */ diff --git a/nsprpub/pr/src/md/unix/uxrng.c b/nsprpub/pr/src/md/unix/uxrng.c new file mode 100644 index 0000000000..479859000a --- /dev/null +++ b/nsprpub/pr/src/md/unix/uxrng.c @@ -0,0 +1,147 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + + +#include "primpl.h" + +#include <string.h> +#include <unistd.h> +#include <errno.h> +#include <sys/time.h> + + +#if defined(SOLARIS) + +static size_t +GetHighResClock(void *buf, size_t maxbytes) +{ + hrtime_t t; + t = gethrtime(); + if (t) { + return _pr_CopyLowBits(buf, maxbytes, &t, sizeof(t)); + } + return 0; +} + +#elif defined(HPUX) + +#ifdef __ia64 +#include <ia64/sys/inline.h> + +static size_t +GetHighResClock(void *buf, size_t maxbytes) +{ + PRUint64 t; + +#ifdef __GNUC__ + __asm__ __volatile__("mov %0 = ar.itc" : "=r" (t)); +#else + t = _Asm_mov_from_ar(_AREG44); +#endif + return _pr_CopyLowBits(buf, maxbytes, &t, sizeof(t)); +} +#else +static size_t +GetHighResClock(void *buf, size_t maxbytes) +{ + extern int ret_cr16(); + int cr16val; + + cr16val = ret_cr16(); + return(_pr_CopyLowBits(buf, maxbytes, &cr16val, sizeof(cr16val))); +} +#endif + +#elif defined(AIX) + +static size_t +GetHighResClock(void *buf, size_t maxbytes) +{ + return 0; +} + +#elif (defined(LINUX) || defined(FREEBSD) || defined(__FreeBSD_kernel__) \ + || defined(NETBSD) || defined(__NetBSD_kernel__) || defined(OPENBSD) \ + || defined(__GNU__)) +#include <sys/types.h> +#include <sys/stat.h> +#include <fcntl.h> + +static int fdDevURandom; +static PRCallOnceType coOpenDevURandom; + +static PRStatus OpenDevURandom( void ) +{ + fdDevURandom = open( "/dev/urandom", O_RDONLY ); + return((-1 == fdDevURandom)? PR_FAILURE : PR_SUCCESS ); +} /* end OpenDevURandom() */ + +static size_t GetDevURandom( void *buf, size_t size ) +{ + int bytesIn; + int rc; + + rc = PR_CallOnce( &coOpenDevURandom, OpenDevURandom ); + if ( PR_FAILURE == rc ) { + _PR_MD_MAP_OPEN_ERROR( errno ); + return(0); + } + + bytesIn = read( fdDevURandom, buf, size ); + if ( -1 == bytesIn ) { + _PR_MD_MAP_READ_ERROR( errno ); + return(0); + } + + return( bytesIn ); +} /* end GetDevURandom() */ + +static size_t +GetHighResClock(void *buf, size_t maxbytes) +{ + return(GetDevURandom( buf, maxbytes )); +} + +#elif defined(SCO) || defined(UNIXWARE) || defined(BSDI) || defined(NTO) \ + || defined(QNX) || defined(DARWIN) || defined(RISCOS) +#include <sys/times.h> + +static size_t +GetHighResClock(void *buf, size_t maxbytes) +{ + int ticks; + struct tms buffer; + + ticks=times(&buffer); + return _pr_CopyLowBits(buf, maxbytes, &ticks, sizeof(ticks)); +} +#else +#error! Platform undefined +#endif /* defined(SOLARIS) */ + +extern PRSize _PR_MD_GetRandomNoise( void *buf, PRSize size ) +{ + struct timeval tv; + int n = 0; + int s; + + n += GetHighResClock(buf, size); + size -= n; + + GETTIMEOFDAY(&tv); + + if ( size > 0 ) { + s = _pr_CopyLowBits((char*)buf+n, size, &tv.tv_usec, sizeof(tv.tv_usec)); + size -= s; + n += s; + } + if ( size > 0 ) { + s = _pr_CopyLowBits((char*)buf+n, size, &tv.tv_sec, sizeof(tv.tv_usec)); + size -= s; + n += s; + } + + return n; +} /* end _PR_MD_GetRandomNoise() */ diff --git a/nsprpub/pr/src/md/unix/uxshm.c b/nsprpub/pr/src/md/unix/uxshm.c new file mode 100644 index 0000000000..29a6030f44 --- /dev/null +++ b/nsprpub/pr/src/md/unix/uxshm.c @@ -0,0 +1,632 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +/* +** uxshm.c -- Unix Implementations NSPR Named Shared Memory +** +** +** lth. Jul-1999. +** +*/ +#include <string.h> +#include <prshm.h> +#include <prerr.h> +#include <prmem.h> +#include "primpl.h" +#include <fcntl.h> + +extern PRLogModuleInfo *_pr_shm_lm; + + +#define NSPR_IPC_SHM_KEY 'b' +/* +** Implementation for System V +*/ +#if defined PR_HAVE_SYSV_NAMED_SHARED_MEMORY +#include <sys/ipc.h> +#include <sys/shm.h> +#include <sys/types.h> +#include <sys/stat.h> + +#define _MD_OPEN_SHARED_MEMORY _MD_OpenSharedMemory +#define _MD_ATTACH_SHARED_MEMORY _MD_AttachSharedMemory +#define _MD_DETACH_SHARED_MEMORY _MD_DetachSharedMemory +#define _MD_CLOSE_SHARED_MEMORY _MD_CloseSharedMemory +#define _MD_DELETE_SHARED_MEMORY _MD_DeleteSharedMemory + +extern PRSharedMemory * _MD_OpenSharedMemory( + const char *name, + PRSize size, + PRIntn flags, + PRIntn mode +) +{ + PRStatus rc = PR_SUCCESS; + key_t key; + PRSharedMemory *shm; + char ipcname[PR_IPC_NAME_SIZE]; + + rc = _PR_MakeNativeIPCName( name, ipcname, PR_IPC_NAME_SIZE, _PRIPCShm ); + if ( PR_FAILURE == rc ) + { + _PR_MD_MAP_DEFAULT_ERROR( errno ); + PR_LOG( _pr_shm_lm, PR_LOG_DEBUG, + ("_MD_OpenSharedMemory(): _PR_MakeNativeIPCName() failed: %s", name )); + return( NULL ); + } + + shm = PR_NEWZAP( PRSharedMemory ); + if ( NULL == shm ) + { + PR_SetError(PR_OUT_OF_MEMORY_ERROR, 0 ); + PR_LOG(_pr_shm_lm, PR_LOG_DEBUG, ( "PR_OpenSharedMemory: New PRSharedMemory out of memory")); + return( NULL ); + } + + shm->ipcname = (char*)PR_MALLOC( strlen( ipcname ) + 1 ); + if ( NULL == shm->ipcname ) + { + PR_SetError(PR_OUT_OF_MEMORY_ERROR, 0 ); + PR_LOG(_pr_shm_lm, PR_LOG_DEBUG, ( "PR_OpenSharedMemory: New shm->ipcname out of memory")); + PR_DELETE( shm ); + return( NULL ); + } + + /* copy args to struct */ + strcpy( shm->ipcname, ipcname ); + shm->size = size; + shm->mode = mode; + shm->flags = flags; + shm->ident = _PR_SHM_IDENT; + + /* create the file first */ + if ( flags & PR_SHM_CREATE ) { + int osfd = open( shm->ipcname, (O_RDWR | O_CREAT), shm->mode ); + if ( -1 == osfd ) { + _PR_MD_MAP_OPEN_ERROR( errno ); + PR_FREEIF( shm->ipcname ); + PR_DELETE( shm ); + return( NULL ); + } + if ( close(osfd) == -1 ) { + _PR_MD_MAP_CLOSE_ERROR( errno ); + PR_FREEIF( shm->ipcname ); + PR_DELETE( shm ); + return( NULL ); + } + } + + /* hash the shm.name to an ID */ + key = ftok( shm->ipcname, NSPR_IPC_SHM_KEY ); + if ( -1 == key ) + { + rc = PR_FAILURE; + _PR_MD_MAP_DEFAULT_ERROR( errno ); + PR_LOG( _pr_shm_lm, PR_LOG_DEBUG, + ("_MD_OpenSharedMemory(): ftok() failed on name: %s", shm->ipcname)); + PR_FREEIF( shm->ipcname ); + PR_DELETE( shm ); + return( NULL ); + } + + /* get the shared memory */ + if ( flags & PR_SHM_CREATE ) { + shm->id = shmget( key, shm->size, ( shm->mode | IPC_CREAT|IPC_EXCL)); + if ( shm->id >= 0 ) { + return( shm ); + } + if ((errno == EEXIST) && (flags & PR_SHM_EXCL)) { + PR_SetError( PR_FILE_EXISTS_ERROR, errno ); + PR_LOG( _pr_shm_lm, PR_LOG_DEBUG, + ("_MD_OpenSharedMemory(): shmget() exclusive failed, errno: %d", errno)); + PR_FREEIF(shm->ipcname); + PR_DELETE(shm); + return(NULL); + } + } + + shm->id = shmget( key, shm->size, shm->mode ); + if ( -1 == shm->id ) { + _PR_MD_MAP_DEFAULT_ERROR( errno ); + PR_LOG( _pr_shm_lm, PR_LOG_DEBUG, + ("_MD_OpenSharedMemory(): shmget() failed, errno: %d", errno)); + PR_FREEIF(shm->ipcname); + PR_DELETE(shm); + return(NULL); + } + + return( shm ); +} /* end _MD_OpenSharedMemory() */ + +extern void * _MD_AttachSharedMemory( PRSharedMemory *shm, PRIntn flags ) +{ + void *addr; + PRUint32 aFlags = shm->mode; + + PR_ASSERT( shm->ident == _PR_SHM_IDENT ); + + aFlags |= (flags & PR_SHM_READONLY )? SHM_RDONLY : 0; + + addr = shmat( shm->id, NULL, aFlags ); + if ( (void*)-1 == addr ) + { + _PR_MD_MAP_DEFAULT_ERROR( errno ); + PR_LOG( _pr_shm_lm, PR_LOG_DEBUG, + ("_MD_AttachSharedMemory(): shmat() failed on name: %s, OsError: %d", + shm->ipcname, PR_GetOSError() )); + addr = NULL; + } + + return addr; +} + +extern PRStatus _MD_DetachSharedMemory( PRSharedMemory *shm, void *addr ) +{ + PRStatus rc = PR_SUCCESS; + PRIntn urc; + + PR_ASSERT( shm->ident == _PR_SHM_IDENT ); + + urc = shmdt( addr ); + if ( -1 == urc ) + { + rc = PR_FAILURE; + _PR_MD_MAP_DEFAULT_ERROR( errno ); + PR_LOG( _pr_shm_lm, PR_LOG_DEBUG, + ("_MD_DetachSharedMemory(): shmdt() failed on name: %s", shm->ipcname )); + } + + return rc; +} + +extern PRStatus _MD_CloseSharedMemory( PRSharedMemory *shm ) +{ + PR_ASSERT( shm->ident == _PR_SHM_IDENT ); + + PR_FREEIF(shm->ipcname); + PR_DELETE(shm); + + return PR_SUCCESS; +} + +extern PRStatus _MD_DeleteSharedMemory( const char *name ) +{ + PRStatus rc = PR_SUCCESS; + key_t key; + int id; + PRIntn urc; + char ipcname[PR_IPC_NAME_SIZE]; + + rc = _PR_MakeNativeIPCName( name, ipcname, PR_IPC_NAME_SIZE, _PRIPCShm ); + if ( PR_FAILURE == rc ) + { + PR_SetError( PR_UNKNOWN_ERROR, errno ); + PR_LOG( _pr_shm_lm, PR_LOG_DEBUG, + ("_MD_DeleteSharedMemory(): _PR_MakeNativeIPCName() failed: %s", name )); + return(PR_FAILURE); + } + + /* create the file first */ + { + int osfd = open( ipcname, (O_RDWR | O_CREAT), 0666 ); + if ( -1 == osfd ) { + _PR_MD_MAP_OPEN_ERROR( errno ); + return( PR_FAILURE ); + } + if ( close(osfd) == -1 ) { + _PR_MD_MAP_CLOSE_ERROR( errno ); + return( PR_FAILURE ); + } + } + + /* hash the shm.name to an ID */ + key = ftok( ipcname, NSPR_IPC_SHM_KEY ); + if ( -1 == key ) + { + rc = PR_FAILURE; + _PR_MD_MAP_DEFAULT_ERROR( errno ); + PR_LOG( _pr_shm_lm, PR_LOG_DEBUG, + ("_MD_DeleteSharedMemory(): ftok() failed on name: %s", ipcname)); + } + + id = shmget( key, 0, 0 ); + if ( -1 == id ) { + _PR_MD_MAP_DEFAULT_ERROR( errno ); + PR_LOG( _pr_shm_lm, PR_LOG_DEBUG, + ("_MD_DeleteSharedMemory(): shmget() failed, errno: %d", errno)); + return(PR_FAILURE); + } + + urc = shmctl( id, IPC_RMID, NULL ); + if ( -1 == urc ) + { + _PR_MD_MAP_DEFAULT_ERROR( errno ); + PR_LOG( _pr_shm_lm, PR_LOG_DEBUG, + ("_MD_DeleteSharedMemory(): shmctl() failed on name: %s", ipcname )); + return(PR_FAILURE); + } + + urc = unlink( ipcname ); + if ( -1 == urc ) { + _PR_MD_MAP_UNLINK_ERROR( errno ); + PR_LOG( _pr_shm_lm, PR_LOG_DEBUG, + ("_MD_DeleteSharedMemory(): unlink() failed: %s", ipcname )); + return(PR_FAILURE); + } + + return rc; +} /* end _MD_DeleteSharedMemory() */ + +/* +** Implementation for Posix +*/ +#elif defined PR_HAVE_POSIX_NAMED_SHARED_MEMORY +#include <sys/mman.h> + +#define _MD_OPEN_SHARED_MEMORY _MD_OpenSharedMemory +#define _MD_ATTACH_SHARED_MEMORY _MD_AttachSharedMemory +#define _MD_DETACH_SHARED_MEMORY _MD_DetachSharedMemory +#define _MD_CLOSE_SHARED_MEMORY _MD_CloseSharedMemory +#define _MD_DELETE_SHARED_MEMORY _MD_DeleteSharedMemory + +struct _MDSharedMemory { + int handle; +}; + +extern PRSharedMemory * _MD_OpenSharedMemory( + const char *name, + PRSize size, + PRIntn flags, + PRIntn mode +) +{ + PRStatus rc = PR_SUCCESS; + PRInt32 end; + PRSharedMemory *shm; + char ipcname[PR_IPC_NAME_SIZE]; + + rc = _PR_MakeNativeIPCName( name, ipcname, PR_IPC_NAME_SIZE, _PRIPCShm ); + if ( PR_FAILURE == rc ) + { + PR_SetError( PR_UNKNOWN_ERROR, errno ); + PR_LOG( _pr_shm_lm, PR_LOG_DEBUG, + ("_MD_OpenSharedMemory(): _PR_MakeNativeIPCName() failed: %s", name )); + return( NULL ); + } + + shm = PR_NEWZAP( PRSharedMemory ); + if ( NULL == shm ) + { + PR_SetError(PR_OUT_OF_MEMORY_ERROR, 0 ); + PR_LOG(_pr_shm_lm, PR_LOG_DEBUG, ( "PR_OpenSharedMemory: New PRSharedMemory out of memory")); + return( NULL ); + } + + shm->ipcname = PR_MALLOC( strlen( ipcname ) + 1 ); + if ( NULL == shm->ipcname ) + { + PR_SetError(PR_OUT_OF_MEMORY_ERROR, 0 ); + PR_LOG(_pr_shm_lm, PR_LOG_DEBUG, ( "PR_OpenSharedMemory: New shm->ipcname out of memory")); + return( NULL ); + } + + /* copy args to struct */ + strcpy( shm->ipcname, ipcname ); + shm->size = size; + shm->mode = mode; + shm->flags = flags; + shm->ident = _PR_SHM_IDENT; + + /* + ** Create the shared memory + */ + if ( flags & PR_SHM_CREATE ) { + int oflag = (O_CREAT | O_RDWR); + + if ( flags & PR_SHM_EXCL ) { + oflag |= O_EXCL; + } + shm->id = shm_open( shm->ipcname, oflag, shm->mode ); + } else { + shm->id = shm_open( shm->ipcname, O_RDWR, shm->mode ); + } + + if ( -1 == shm->id ) { + _PR_MD_MAP_DEFAULT_ERROR( errno ); + PR_LOG(_pr_shm_lm, PR_LOG_DEBUG, + ("_MD_OpenSharedMemory(): shm_open failed: %s, OSError: %d", + shm->ipcname, PR_GetOSError())); + PR_DELETE( shm->ipcname ); + PR_DELETE( shm ); + return(NULL); + } + + end = ftruncate( shm->id, shm->size ); + if ( -1 == end ) { + _PR_MD_MAP_DEFAULT_ERROR( errno ); + PR_LOG(_pr_shm_lm, PR_LOG_DEBUG, + ("_MD_OpenSharedMemory(): ftruncate failed, OSError: %d", + PR_GetOSError())); + PR_DELETE( shm->ipcname ); + PR_DELETE( shm ); + return(NULL); + } + + return(shm); +} /* end _MD_OpenSharedMemory() */ + +extern void * _MD_AttachSharedMemory( PRSharedMemory *shm, PRIntn flags ) +{ + void *addr; + PRIntn prot = (PROT_READ | PROT_WRITE); + + PR_ASSERT( shm->ident == _PR_SHM_IDENT ); + + if ( PR_SHM_READONLY == flags) { + prot ^= PROT_WRITE; + } + + addr = mmap( (void*)0, shm->size, prot, MAP_SHARED, shm->id, 0 ); + if ((void*)-1 == addr ) + { + _PR_MD_MAP_DEFAULT_ERROR( errno ); + PR_LOG( _pr_shm_lm, PR_LOG_DEBUG, + ("_MD_AttachSharedMemory(): mmap failed: %s, errno: %d", + shm->ipcname, PR_GetOSError())); + addr = NULL; + } else { + PR_LOG( _pr_shm_lm, PR_LOG_DEBUG, + ("_MD_AttachSharedMemory(): name: %s, attached at: %p", shm->ipcname, addr)); + } + + return addr; +} + +extern PRStatus _MD_DetachSharedMemory( PRSharedMemory *shm, void *addr ) +{ + PRStatus rc = PR_SUCCESS; + PRIntn urc; + + PR_ASSERT( shm->ident == _PR_SHM_IDENT ); + + urc = munmap( addr, shm->size ); + if ( -1 == urc ) + { + rc = PR_FAILURE; + _PR_MD_MAP_DEFAULT_ERROR( errno ); + PR_LOG( _pr_shm_lm, PR_LOG_DEBUG, + ("_MD_DetachSharedMemory(): munmap failed: %s, errno: %d", + shm->ipcname, PR_GetOSError())); + } + return rc; +} + +extern PRStatus _MD_CloseSharedMemory( PRSharedMemory *shm ) +{ + int urc; + + PR_ASSERT( shm->ident == _PR_SHM_IDENT ); + + urc = close( shm->id ); + if ( -1 == urc ) { + _PR_MD_MAP_CLOSE_ERROR( errno ); + PR_LOG( _pr_shm_lm, PR_LOG_DEBUG, + ("_MD_CloseSharedMemory(): close() failed, error: %d", PR_GetOSError())); + return(PR_FAILURE); + } + PR_DELETE( shm->ipcname ); + PR_DELETE( shm ); + return PR_SUCCESS; +} + +extern PRStatus _MD_DeleteSharedMemory( const char *name ) +{ + PRStatus rc = PR_SUCCESS; + PRUintn urc; + char ipcname[PR_IPC_NAME_SIZE]; + + rc = _PR_MakeNativeIPCName( name, ipcname, PR_IPC_NAME_SIZE, _PRIPCShm ); + if ( PR_FAILURE == rc ) + { + PR_SetError( PR_UNKNOWN_ERROR, errno ); + PR_LOG( _pr_shm_lm, PR_LOG_DEBUG, + ("_MD_OpenSharedMemory(): _PR_MakeNativeIPCName() failed: %s", name )); + return rc; + } + + urc = shm_unlink( ipcname ); + if ( -1 == urc ) { + rc = PR_FAILURE; + _PR_MD_MAP_DEFAULT_ERROR( errno ); + PR_LOG( _pr_shm_lm, PR_LOG_DEBUG, + ("_MD_DeleteSharedMemory(): shm_unlink failed: %s, errno: %d", + ipcname, PR_GetOSError())); + } else { + PR_LOG( _pr_shm_lm, PR_LOG_DEBUG, + ("_MD_DeleteSharedMemory(): %s, success", ipcname)); + } + + return rc; +} /* end _MD_DeleteSharedMemory() */ +#endif + + + +/* +** Unix implementation for anonymous memory (file) mapping +*/ +extern PRLogModuleInfo *_pr_shma_lm; + +#include <unistd.h> + +extern PRFileMap* _md_OpenAnonFileMap( + const char *dirName, + PRSize size, + PRFileMapProtect prot +) +{ + PRFileMap *fm = NULL; + PRFileDesc *fd; + int osfd; + PRIntn urc; + PRIntn mode = 0600; + char *genName; + pid_t pid = getpid(); /* for generating filename */ + PRThread *tid = PR_GetCurrentThread(); /* for generating filename */ + int incr; /* for generating filename */ + const int maxTries = 20; /* maximum # attempts at a unique filename */ + PRInt64 size64; /* 64-bit version of 'size' */ + + /* + ** generate a filename from input and runtime environment + ** open the file, unlink the file. + ** make maxTries number of attempts at uniqueness in the filename + */ + for ( incr = 0; incr < maxTries ; incr++ ) { +#define NSPR_AFM_FILENAME "%s/.NSPR-AFM-%d-%p.%d" + genName = PR_smprintf( NSPR_AFM_FILENAME, + dirName, (int) pid, tid, incr ); + if ( NULL == genName ) { + PR_LOG( _pr_shma_lm, PR_LOG_DEBUG, + ("_md_OpenAnonFileMap(): PR_snprintf(): failed, generating filename")); + goto Finished; + } + + /* create the file */ + osfd = open(genName, (O_CREAT | O_EXCL | O_RDWR), mode); + if (-1 == osfd) { + if (EEXIST == errno) { + PR_smprintf_free(genName); + continue; /* name exists, try again */ + } + _PR_MD_MAP_OPEN_ERROR(errno); + PR_LOG( + _pr_shma_lm, + PR_LOG_DEBUG, + ("_md_OpenAnonFileMap(): open(): failed, filename: %s, errno: %d", + genName, + PR_GetOSError())); + PR_smprintf_free(genName); + goto Finished; + } + break; /* name generation and open successful, break; */ + } /* end for() */ + + if (incr == maxTries) { + PR_ASSERT(-1 == osfd); + PR_ASSERT(EEXIST == errno); + _PR_MD_MAP_OPEN_ERROR(errno); + goto Finished; + } + + urc = unlink( genName ); + if ( -1 == urc ) { + _PR_MD_MAP_UNLINK_ERROR( errno ); + PR_LOG( _pr_shma_lm, PR_LOG_DEBUG, + ("_md_OpenAnonFileMap(): failed on unlink(), errno: %d", errno)); + PR_smprintf_free( genName ); + close( osfd ); + goto Finished; + } + PR_LOG( _pr_shma_lm, PR_LOG_DEBUG, + ("_md_OpenAnonFileMap(): unlink(): %s", genName )); + + PR_smprintf_free( genName ); + + fd = PR_ImportFile( osfd ); + if ( NULL == fd ) { + PR_LOG( _pr_shma_lm, PR_LOG_DEBUG, + ("_md_OpenAnonFileMap(): PR_ImportFile(): failed")); + goto Finished; + } + PR_LOG( _pr_shma_lm, PR_LOG_DEBUG, + ("_md_OpenAnonFileMap(): fd: %p", fd )); + + urc = ftruncate( fd->secret->md.osfd, size ); + if ( -1 == urc ) { + _PR_MD_MAP_DEFAULT_ERROR( errno ); + PR_LOG( _pr_shma_lm, PR_LOG_DEBUG, + ("_md_OpenAnonFileMap(): failed on ftruncate(), errno: %d", errno)); + PR_Close( fd ); + goto Finished; + } + PR_LOG( _pr_shma_lm, PR_LOG_DEBUG, + ("_md_OpenAnonFileMap(): ftruncate(): size: %d", size )); + + LL_UI2L(size64, size); /* PRSize (size_t) is unsigned */ + fm = PR_CreateFileMap( fd, size64, prot ); + if ( NULL == fm ) { + PR_LOG( _pr_shma_lm, PR_LOG_DEBUG, + ("PR_OpenAnonFileMap(): failed")); + PR_Close( fd ); + goto Finished; + } + fm->md.isAnonFM = PR_TRUE; /* set fd close */ + + PR_LOG( _pr_shma_lm, PR_LOG_DEBUG, + ("_md_OpenAnonFileMap(): PR_CreateFileMap(): fm: %p", fm )); + +Finished: + return(fm); +} /* end md_OpenAnonFileMap() */ + +/* +** _md_ExportFileMapAsString() +** +** +*/ +extern PRStatus _md_ExportFileMapAsString( + PRFileMap *fm, + PRSize bufSize, + char *buf +) +{ + PRIntn written; + PRIntn prot = (PRIntn)fm->prot; + + written = PR_snprintf( buf, bufSize, "%ld:%d", + fm->fd->secret->md.osfd, prot ); + + return((written == -1)? PR_FAILURE : PR_SUCCESS); +} /* end _md_ExportFileMapAsString() */ + + +extern PRFileMap * _md_ImportFileMapFromString( + const char *fmstring +) +{ + PRStatus rc; + PRInt32 osfd; + PRIntn prot; /* really: a PRFileMapProtect */ + PRFileDesc *fd; + PRFileMap *fm = NULL; /* default return value */ + PRFileInfo64 info; + + PR_sscanf( fmstring, "%ld:%d", &osfd, &prot ); + + /* import the os file descriptor */ + fd = PR_ImportFile( osfd ); + if ( NULL == fd ) { + PR_LOG( _pr_shma_lm, PR_LOG_DEBUG, + ("_md_ImportFileMapFromString(): PR_ImportFile() failed")); + goto Finished; + } + + rc = PR_GetOpenFileInfo64( fd, &info ); + if ( PR_FAILURE == rc ) { + PR_LOG( _pr_shma_lm, PR_LOG_DEBUG, + ("_md_ImportFileMapFromString(): PR_GetOpenFileInfo64() failed")); + goto Finished; + } + + fm = PR_CreateFileMap( fd, info.size, (PRFileMapProtect)prot ); + if ( NULL == fm ) { + PR_LOG( _pr_shma_lm, PR_LOG_DEBUG, + ("_md_ImportFileMapFromString(): PR_CreateFileMap() failed")); + } + +Finished: + return(fm); +} /* end _md_ImportFileMapFromString() */ diff --git a/nsprpub/pr/src/md/unix/uxwrap.c b/nsprpub/pr/src/md/unix/uxwrap.c new file mode 100644 index 0000000000..e0ddc50eb8 --- /dev/null +++ b/nsprpub/pr/src/md/unix/uxwrap.c @@ -0,0 +1,512 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +/* + *------------------------------------------------------------------------ + * File: uxwrap.c + * + * Our wrapped versions of the Unix select() and poll() system calls. + * + *------------------------------------------------------------------------ + */ + +#include "primpl.h" + +#if defined(_PR_PTHREADS) || defined(_PR_GLOBAL_THREADS_ONLY) || defined(QNX) +/* Do not wrap select() and poll(). */ +#else /* defined(_PR_PTHREADS) || defined(_PR_GLOBAL_THREADS_ONLY) */ +/* The include files for select() */ +#include <string.h> +#include <sys/types.h> +#include <sys/time.h> + +#define ZAP_SET(_to, _width) \ + PR_BEGIN_MACRO \ + memset(_to, 0, \ + ((_width + 8*sizeof(int)-1) / (8*sizeof(int))) \ + * sizeof(int) \ + ); \ + PR_END_MACRO + +/* see comments in ns/cmd/xfe/mozilla.c (look for "PR_XGetXtHackFD") */ +static int _pr_xt_hack_fd = -1; + +int PR_XGetXtHackFD(void) +{ + int fds[2]; + + if (_pr_xt_hack_fd == -1) { + if (!pipe(fds)) { + _pr_xt_hack_fd = fds[0]; + } + } + return _pr_xt_hack_fd; +} + +static int (*_pr_xt_hack_okayToReleaseXLock)(void) = 0; + +void PR_SetXtHackOkayToReleaseXLockFn(int (*fn)(void)) +{ + _pr_xt_hack_okayToReleaseXLock = fn; +} + + +/* + *----------------------------------------------------------------------- + * select() -- + * + * Wrap up the select system call so that we can deschedule + * a thread that tries to wait for i/o. + * + *----------------------------------------------------------------------- + */ + +#if defined(HPUX9) +int select(size_t width, int *rl, int *wl, int *el, const struct timeval *tv) +#elif defined(AIX_RENAME_SELECT) +int wrap_select(unsigned long width, void *rl, void *wl, void *el, + struct timeval *tv) +#elif defined(_PR_SELECT_CONST_TIMEVAL) +int select(int width, fd_set *rd, fd_set *wr, fd_set *ex, + const struct timeval *tv) +#else +int select(int width, fd_set *rd, fd_set *wr, fd_set *ex, struct timeval *tv) +#endif +{ + int osfd; + _PRUnixPollDesc *unixpds, *unixpd, *eunixpd; + PRInt32 pdcnt; + PRIntervalTime timeout; + int retVal; +#if defined(HPUX9) || defined(AIX_RENAME_SELECT) + fd_set *rd = (fd_set*) rl; + fd_set *wr = (fd_set*) wl; + fd_set *ex = (fd_set*) el; +#endif + +#if 0 + /* + * Easy special case: zero timeout. Simply call the native + * select() with no fear of blocking. + */ + if (tv != NULL && tv->tv_sec == 0 && tv->tv_usec == 0) { +#if defined(HPUX9) || defined(AIX_RENAME_SELECT) + return _MD_SELECT(width, rl, wl, el, tv); +#else + return _MD_SELECT(width, rd, wr, ex, tv); +#endif + } +#endif + + if (!_pr_initialized) { + _PR_ImplicitInitialization(); + } + +#ifndef _PR_LOCAL_THREADS_ONLY + if (_PR_IS_NATIVE_THREAD(_PR_MD_CURRENT_THREAD())) { + return _MD_SELECT(width, rd, wr, ex, tv); + } +#endif + + if (width < 0 || width > FD_SETSIZE) { + errno = EINVAL; + return -1; + } + + /* Compute timeout */ + if (tv) { + /* + * These acceptable ranges for t_sec and t_usec are taken + * from the select() man pages. + */ + if (tv->tv_sec < 0 || tv->tv_sec > 100000000 + || tv->tv_usec < 0 || tv->tv_usec >= 1000000) { + errno = EINVAL; + return -1; + } + + /* Convert microseconds to ticks */ + timeout = PR_MicrosecondsToInterval(1000000*tv->tv_sec + tv->tv_usec); + } else { + /* tv being a NULL pointer means blocking indefinitely */ + timeout = PR_INTERVAL_NO_TIMEOUT; + } + + /* Check for no descriptors case (just doing a timeout) */ + if ((!rd && !wr && !ex) || !width) { + PR_Sleep(timeout); + return 0; + } + + /* + * Set up for PR_Poll(). The PRPollDesc array is allocated + * dynamically. If this turns out to have high performance + * penalty, one can change to use a large PRPollDesc array + * on the stack, and allocate dynamically only when it turns + * out to be not large enough. + * + * I allocate an array of size 'width', which is the maximum + * number of fds we may need to poll. + */ + unixpds = (_PRUnixPollDesc *) PR_CALLOC(width * sizeof(_PRUnixPollDesc)); + if (!unixpds) { + errno = ENOMEM; + return -1; + } + + pdcnt = 0; + unixpd = unixpds; + for (osfd = 0; osfd < width; osfd++) { + int in_flags = 0; + if (rd && FD_ISSET(osfd, rd)) { + in_flags |= _PR_UNIX_POLL_READ; + } + if (wr && FD_ISSET(osfd, wr)) { + in_flags |= _PR_UNIX_POLL_WRITE; + } + if (ex && FD_ISSET(osfd, ex)) { + in_flags |= _PR_UNIX_POLL_EXCEPT; + } + if (in_flags) { + unixpd->osfd = osfd; + unixpd->in_flags = in_flags; + unixpd->out_flags = 0; + unixpd++; + pdcnt++; + } + } + + /* + * see comments in mozilla/cmd/xfe/mozilla.c (look for + * "PR_XGetXtHackFD") + */ + { + int needToLockXAgain; + + needToLockXAgain = 0; + if (rd && (_pr_xt_hack_fd != -1) + && FD_ISSET(_pr_xt_hack_fd, rd) && _PR_XIsLocked() + && (!_pr_xt_hack_okayToReleaseXLock + || _pr_xt_hack_okayToReleaseXLock())) { + _PR_XUnlock(); + needToLockXAgain = 1; + } + + /* This is the potentially blocking step */ + retVal = _PR_WaitForMultipleFDs(unixpds, pdcnt, timeout); + + if (needToLockXAgain) { + _PR_XLock(); + } + } + + if (retVal > 0) { + /* Compute select results */ + if (rd) { + ZAP_SET(rd, width); + } + if (wr) { + ZAP_SET(wr, width); + } + if (ex) { + ZAP_SET(ex, width); + } + + /* + * The return value can be either the number of ready file + * descriptors or the number of set bits in the three fd_set's. + */ + retVal = 0; /* we're going to recompute */ + eunixpd = unixpds + pdcnt; + for (unixpd = unixpds; unixpd < eunixpd; unixpd++) { + if (unixpd->out_flags) { + int nbits = 0; /* The number of set bits on for this fd */ + + if (unixpd->out_flags & _PR_UNIX_POLL_NVAL) { + errno = EBADF; + PR_LOG(_pr_io_lm, PR_LOG_ERROR, + ("select returns EBADF for %d", unixpd->osfd)); + retVal = -1; + break; + } + /* + * If a socket has a pending error, it is considered + * both readable and writable. (See W. Richard Stevens, + * Unix Network Programming, Vol. 1, 2nd Ed., Section 6.3, + * pp. 153-154.) We also consider a socket readable if + * it has a hangup condition. + */ + if (rd && (unixpd->in_flags & _PR_UNIX_POLL_READ) + && (unixpd->out_flags & (_PR_UNIX_POLL_READ + | _PR_UNIX_POLL_ERR | _PR_UNIX_POLL_HUP))) { + FD_SET(unixpd->osfd, rd); + nbits++; + } + if (wr && (unixpd->in_flags & _PR_UNIX_POLL_WRITE) + && (unixpd->out_flags & (_PR_UNIX_POLL_WRITE + | _PR_UNIX_POLL_ERR))) { + FD_SET(unixpd->osfd, wr); + nbits++; + } + if (ex && (unixpd->in_flags & _PR_UNIX_POLL_WRITE) + && (unixpd->out_flags & PR_POLL_EXCEPT)) { + FD_SET(unixpd->osfd, ex); + nbits++; + } + PR_ASSERT(nbits > 0); +#if defined(HPUX) || defined(SOLARIS) || defined(AIX) + retVal += nbits; +#endif + } + } + } + + PR_ASSERT(tv || retVal != 0); + PR_LOG(_pr_io_lm, PR_LOG_MIN, ("select returns %d", retVal)); + PR_DELETE(unixpds); + + return retVal; +} + +/* + * Redefine poll, when supported on platforms, for local threads + */ + +/* + * I am commenting out the poll() wrapper for Linux for now + * because it is difficult to define _MD_POLL that works on all + * Linux varieties. People reported that glibc 2.0.7 on Debian + * 2.0 Linux machines doesn't have the __syscall_poll symbol + * defined. (WTC 30 Nov. 1998) + */ +#if defined(_PR_POLL_AVAILABLE) && !defined(LINUX) + +/* + *----------------------------------------------------------------------- + * poll() -- + * + * RETURN VALUES: + * -1: fails, errno indicates the error. + * 0: timed out, the revents bitmasks are not set. + * positive value: the number of file descriptors for which poll() + * has set the revents bitmask. + * + *----------------------------------------------------------------------- + */ + +#include <poll.h> + +#if defined(AIX_RENAME_SELECT) +int wrap_poll(void *listptr, unsigned long nfds, long timeout) +#elif (defined(AIX) && !defined(AIX_RENAME_SELECT)) +int poll(void *listptr, unsigned long nfds, long timeout) +#elif defined(HPUX) && !defined(HPUX9) +int poll(struct pollfd filedes[], unsigned int nfds, int timeout) +#elif defined(HPUX9) +int poll(struct pollfd filedes[], int nfds, int timeout) +#elif defined(NETBSD) +int poll(struct pollfd *filedes, nfds_t nfds, int timeout) +#elif defined(OPENBSD) +int poll(struct pollfd filedes[], nfds_t nfds, int timeout) +#elif defined(FREEBSD) +int poll(struct pollfd *filedes, unsigned nfds, int timeout) +#else +int poll(struct pollfd *filedes, unsigned long nfds, int timeout) +#endif +{ +#ifdef AIX + struct pollfd *filedes = (struct pollfd *) listptr; +#endif + struct pollfd *pfd, *epfd; + _PRUnixPollDesc *unixpds, *unixpd, *eunixpd; + PRIntervalTime ticks; + PRInt32 pdcnt; + int ready; + + /* + * Easy special case: zero timeout. Simply call the native + * poll() with no fear of blocking. + */ + if (timeout == 0) { +#if defined(AIX) + return _MD_POLL(listptr, nfds, timeout); +#else + return _MD_POLL(filedes, nfds, timeout); +#endif + } + + if (!_pr_initialized) { + _PR_ImplicitInitialization(); + } + +#ifndef _PR_LOCAL_THREADS_ONLY + if (_PR_IS_NATIVE_THREAD(_PR_MD_CURRENT_THREAD())) { + return _MD_POLL(filedes, nfds, timeout); + } +#endif + + /* We do not support the pollmsg structures on AIX */ +#ifdef AIX + PR_ASSERT((nfds & 0xff00) == 0); +#endif + + if (timeout < 0 && timeout != -1) { + errno = EINVAL; + return -1; + } + + /* Convert timeout from miliseconds to ticks */ + if (timeout == -1) { + ticks = PR_INTERVAL_NO_TIMEOUT; + } else { + ticks = PR_MillisecondsToInterval(timeout); + } + + /* Check for no descriptor case (just do a timeout) */ + if (nfds == 0) { + PR_Sleep(ticks); + return 0; + } + + unixpds = (_PRUnixPollDesc *) + PR_MALLOC(nfds * sizeof(_PRUnixPollDesc)); + if (NULL == unixpds) { + errno = EAGAIN; + return -1; + } + + pdcnt = 0; + epfd = filedes + nfds; + unixpd = unixpds; + for (pfd = filedes; pfd < epfd; pfd++) { + /* + * poll() ignores negative fd's. + */ + if (pfd->fd >= 0) { + unixpd->osfd = pfd->fd; +#ifdef _PR_USE_POLL + unixpd->in_flags = pfd->events; +#else + /* + * Map the poll events to one of the three that can be + * represented by the select fd_sets: + * POLLIN, POLLRDNORM ===> readable + * POLLOUT, POLLWRNORM ===> writable + * POLLPRI, POLLRDBAND ===> exception + * POLLNORM, POLLWRBAND (and POLLMSG on some platforms) + * are ignored. + * + * The output events POLLERR and POLLHUP are never turned on. + * POLLNVAL may be turned on. + */ + unixpd->in_flags = 0; + if (pfd->events & (POLLIN +#ifdef POLLRDNORM + | POLLRDNORM +#endif + )) { + unixpd->in_flags |= _PR_UNIX_POLL_READ; + } + if (pfd->events & (POLLOUT +#ifdef POLLWRNORM + | POLLWRNORM +#endif + )) { + unixpd->in_flags |= _PR_UNIX_POLL_WRITE; + } + if (pfd->events & (POLLPRI +#ifdef POLLRDBAND + | POLLRDBAND +#endif + )) { + unixpd->in_flags |= PR_POLL_EXCEPT; + } +#endif /* _PR_USE_POLL */ + unixpd->out_flags = 0; + unixpd++; + pdcnt++; + } + } + + ready = _PR_WaitForMultipleFDs(unixpds, pdcnt, ticks); + if (-1 == ready) { + if (PR_GetError() == PR_PENDING_INTERRUPT_ERROR) { + errno = EINTR; /* XXX we aren't interrupted by a signal, but... */ + } else { + errno = PR_GetOSError(); + } + } + if (ready <= 0) { + goto done; + } + + /* + * Copy the out_flags from the _PRUnixPollDesc structures to the + * user's pollfd structures and free the allocated memory + */ + unixpd = unixpds; + for (pfd = filedes; pfd < epfd; pfd++) { + pfd->revents = 0; + if (pfd->fd >= 0) { +#ifdef _PR_USE_POLL + pfd->revents = unixpd->out_flags; +#else + if (0 != unixpd->out_flags) { + if (unixpd->out_flags & _PR_UNIX_POLL_READ) { + if (pfd->events & POLLIN) { + pfd->revents |= POLLIN; + } +#ifdef POLLRDNORM + if (pfd->events & POLLRDNORM) { + pfd->revents |= POLLRDNORM; + } +#endif + } + if (unixpd->out_flags & _PR_UNIX_POLL_WRITE) { + if (pfd->events & POLLOUT) { + pfd->revents |= POLLOUT; + } +#ifdef POLLWRNORM + if (pfd->events & POLLWRNORM) { + pfd->revents |= POLLWRNORM; + } +#endif + } + if (unixpd->out_flags & _PR_UNIX_POLL_EXCEPT) { + if (pfd->events & POLLPRI) { + pfd->revents |= POLLPRI; + } +#ifdef POLLRDBAND + if (pfd->events & POLLRDBAND) { + pfd->revents |= POLLRDBAND; + } +#endif + } + if (unixpd->out_flags & _PR_UNIX_POLL_ERR) { + pfd->revents |= POLLERR; + } + if (unixpd->out_flags & _PR_UNIX_POLL_NVAL) { + pfd->revents |= POLLNVAL; + } + if (unixpd->out_flags & _PR_UNIX_POLL_HUP) { + pfd->revents |= POLLHUP; + } + } +#endif /* _PR_USE_POLL */ + unixpd++; + } + } + +done: + PR_DELETE(unixpds); + return ready; +} + +#endif /* !defined(LINUX) */ + +#endif /* defined(_PR_PTHREADS) || defined(_PR_GLOBAL_THREADS_ONLY) */ + +/* uxwrap.c */ + diff --git a/nsprpub/pr/src/md/windows/Makefile.in b/nsprpub/pr/src/md/windows/Makefile.in new file mode 100644 index 0000000000..04bd716d9a --- /dev/null +++ b/nsprpub/pr/src/md/windows/Makefile.in @@ -0,0 +1,72 @@ +# +# This Source Code Form is subject to the terms of the Mozilla Public +# License, v. 2.0. If a copy of the MPL was not distributed with this +# file, You can obtain one at http://mozilla.org/MPL/2.0/. + +#! gmake + +MOD_DEPTH = ../../../.. +topsrcdir = @top_srcdir@ +srcdir = @srcdir@ +VPATH = @srcdir@ + +include $(MOD_DEPTH)/config/autoconf.mk + +include $(topsrcdir)/config/config.mk + +ifeq (,$(filter-out WIN95 WINCE WINMO, $(OS_TARGET))) +CSRCS = \ + ntmisc.c \ + ntsec.c \ + ntsem.c \ + ntinrval.c \ + ntgc.c \ + w95thred.c \ + w95io.c \ + w95cv.c \ + w32rng.c \ + w95sock.c \ + win32_errors.c \ + w32ipcsem.c \ + w32poll.c \ + w32shm.c \ + w95dllmain.c \ + $(NULL) +else +CSRCS = \ + ntdllmn.c \ + ntmisc.c \ + ntsec.c \ + ntsem.c \ + ntinrval.c \ + ntgc.c \ + ntthread.c \ + ntio.c \ + win32_errors.c \ + w32ipcsem.c \ + w32poll.c \ + w32rng.c \ + w32shm.c \ + $(NULL) +endif + +TARGETS = $(OBJS) + +INCLUDES = -I$(dist_includedir) -I$(topsrcdir)/pr/include -I$(topsrcdir)/pr/include/private + +DEFINES += -D_NSPR_BUILD_ + +include $(topsrcdir)/config/rules.mk + +export:: $(TARGETS) + +# Bug 122433 workaround: disable global optimization (-Og-) on ntio.c. +ifdef MOZ_OPTIMIZE +ifeq ($(OS_TARGET), WINNT) +ifndef NS_USE_GCC +$(OBJDIR)/ntio.$(OBJ_SUFFIX): ntio.c + @$(MAKE_OBJDIR) + $(CC) -Fo$@ -c $(CFLAGS) -Og- $< +endif +endif +endif diff --git a/nsprpub/pr/src/md/windows/ntdllmn.c b/nsprpub/pr/src/md/windows/ntdllmn.c new file mode 100644 index 0000000000..e64b312d09 --- /dev/null +++ b/nsprpub/pr/src/md/windows/ntdllmn.c @@ -0,0 +1,57 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +/* + * The DLL entry point (DllMain) for NSPR. + * + * The only reason we use DLLMain() now is to find out whether + * the NSPR DLL is statically or dynamically loaded. When + * dynamically loaded, we cannot use static thread-local storage. + * However, static TLS is faster than the TlsXXX() functions. + * So we want to use static TLS whenever we can. A global + * variable _pr_use_static_tls is set in DllMain() during process + * attachment to indicate whether it is safe to use static TLS + * or not. + */ + +#include <windows.h> +#include <primpl.h> + +extern BOOL _pr_use_static_tls; /* defined in ntthread.c */ + +BOOL WINAPI DllMain( + HINSTANCE hinstDLL, + DWORD fdwReason, + LPVOID lpvReserved) +{ + PRThread *me; + + switch (fdwReason) { + case DLL_PROCESS_ATTACH: + /* + * If lpvReserved is NULL, we are dynamically loaded + * and therefore can't use static thread-local storage. + */ + if (lpvReserved == NULL) { + _pr_use_static_tls = FALSE; + } else { + _pr_use_static_tls = TRUE; + } + break; + case DLL_THREAD_ATTACH: + break; + case DLL_THREAD_DETACH: + if (_pr_initialized) { + me = _MD_GET_ATTACHED_THREAD(); + if ((me != NULL) && (me->flags & _PR_ATTACHED)) { + _PRI_DetachThread(); + } + } + break; + case DLL_PROCESS_DETACH: + break; + } + return TRUE; +} diff --git a/nsprpub/pr/src/md/windows/ntgc.c b/nsprpub/pr/src/md/windows/ntgc.c new file mode 100644 index 0000000000..20ad8a81e4 --- /dev/null +++ b/nsprpub/pr/src/md/windows/ntgc.c @@ -0,0 +1,98 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +/* + * GC related routines + * + */ +#include <windows.h> +#include "primpl.h" + +PRWord *_MD_HomeGCRegisters(PRThread *t, int isCurrent, int *np) +{ +#if defined(_X86_) + CONTEXT context; + context.ContextFlags = CONTEXT_INTEGER; + + if (_PR_IS_NATIVE_THREAD(t)) { + context.ContextFlags |= CONTEXT_CONTROL; + if (GetThreadContext(t->md.handle, &context)) { + t->md.gcContext[0] = context.Eax; + t->md.gcContext[1] = context.Ebx; + t->md.gcContext[2] = context.Ecx; + t->md.gcContext[3] = context.Edx; + t->md.gcContext[4] = context.Esi; + t->md.gcContext[5] = context.Edi; + t->md.gcContext[6] = context.Esp; + t->md.gcContext[7] = context.Ebp; + *np = PR_NUM_GCREGS; + } else { + PR_ASSERT(0);/* XXX */ + } + } else { + /* WARNING WARNING WARNING WARNING WARNING WARNING WARNING + * + * This code is extremely machine dependant and completely + * undocumented by MS. Its only known to work experimentally. + * Ready for a walk on the wild * side? + * + * WARNING WARNING WARNING WARNING WARNING WARNING WARNING */ + +#if !defined WIN95 // Win95 does not have fibers + int *fiberData = t->md.fiber_id; + + /* I found these offsets by disassembling SwitchToFiber(). + * Are your palms sweating yet? + */ + + /* + ** EAX is on the stack (ESP+0) + ** EDX is on the stack (ESP+4) + ** ECX is on the stack (ESP+8) + */ + t->md.gcContext[0] = 0; /* context.Eax */ + t->md.gcContext[1] = fiberData[0x2e]; /* context.Ebx */ + t->md.gcContext[2] = 0; /* context.Ecx */ + t->md.gcContext[3] = 0; /* context.Edx */ + t->md.gcContext[4] = fiberData[0x2d]; /* context.Esi */ + t->md.gcContext[5] = fiberData[0x2c]; /* context.Edi */ + t->md.gcContext[6] = fiberData[0x36]; /* context.Esp */ + t->md.gcContext[7] = fiberData[0x32]; /* context.Ebp */ + *np = PR_NUM_GCREGS; +#endif + } + return (PRWord *)&t->md.gcContext; +#else + PR_NOT_REACHED("not implemented"); + return NULL; +#endif /* defined(_X86_) */ +} + +/* This function is not used right now, but is left as a reference. + * If you ever need to get the fiberID from the currently running fiber, + * this is it. + */ +void * +GetMyFiberID() +{ +#if defined(_X86_) && !defined(__MINGW32__) + void *fiberData; + + /* A pointer to our tib entry is found at FS:[18] + * At offset 10h is the fiberData pointer. The context of the + * fiber is stored in there. + */ + __asm { + mov EDX, FS:[18h] + mov EAX, DWORD PTR [EDX+10h] + mov [fiberData], EAX + } + + return fiberData; +#else + PR_NOT_REACHED("not implemented"); + return NULL; +#endif /* defined(_X86_) */ +} diff --git a/nsprpub/pr/src/md/windows/ntinrval.c b/nsprpub/pr/src/md/windows/ntinrval.c new file mode 100644 index 0000000000..a447804558 --- /dev/null +++ b/nsprpub/pr/src/md/windows/ntinrval.c @@ -0,0 +1,51 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +/* + * NT interval timers + * + */ + +/* Mozilla's build system defines this globally. */ +#ifdef WIN32_LEAN_AND_MEAN +#undef WIN32_LEAN_AND_MEAN +#endif +#include "primpl.h" + +#ifdef WINCE +typedef DWORD (*IntervalFuncType)(void); +static IntervalFuncType intervalFunc; +#endif + +void +_PR_MD_INTERVAL_INIT() +{ +#ifdef WINCE + HMODULE mmtimerlib = LoadLibraryW(L"mmtimer.dll"); /* XXX leaked! */ + if (mmtimerlib) { + intervalFunc = (IntervalFuncType)GetProcAddress(mmtimerlib, + "timeGetTime"); + } else { + intervalFunc = &GetTickCount; + } +#endif +} + +PRIntervalTime +_PR_MD_GET_INTERVAL() +{ + /* milliseconds since system start */ +#ifdef WINCE + return (*intervalFunc)(); +#else + return timeGetTime(); +#endif +} + +PRIntervalTime +_PR_MD_INTERVAL_PER_SEC() +{ + return 1000; +} diff --git a/nsprpub/pr/src/md/windows/ntio.c b/nsprpub/pr/src/md/windows/ntio.c new file mode 100644 index 0000000000..40f5200789 --- /dev/null +++ b/nsprpub/pr/src/md/windows/ntio.c @@ -0,0 +1,4761 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +/* Windows NT IO module + * + * This module handles IO for LOCAL_SCOPE and GLOBAL_SCOPE threads. + * For LOCAL_SCOPE threads, we're using NT fibers. For GLOBAL_SCOPE threads + * we're using NT-native threads. + * + * When doing IO, we want to use completion ports for optimal performance + * with fibers. But if we use completion ports for all IO, it is difficult + * to project a blocking model with GLOBAL_SCOPE threads. To handle this + * we create an extra thread for completing IO for GLOBAL_SCOPE threads. + * We don't really want to complete IO on a separate thread for LOCAL_SCOPE + * threads because it means extra context switches, which are really slow + * on NT... Since we're using a single completion port, some IO will + * be incorrectly completed on the GLOBAL_SCOPE IO thread; this will mean + * extra context switching; but I don't think there is anything I can do + * about it. + */ + +#include "primpl.h" +#include "pprmwait.h" +#include <direct.h> +#include <mbstring.h> + +static HANDLE _pr_completion_port; +static PRThread *_pr_io_completion_thread; + +#define RECYCLE_SIZE 512 +static struct _MDLock _pr_recycle_lock; +static PRInt32 _pr_recycle_INET_array[RECYCLE_SIZE]; +static PRInt32 _pr_recycle_INET_tail = 0; +static PRInt32 _pr_recycle_INET6_array[RECYCLE_SIZE]; +static PRInt32 _pr_recycle_INET6_tail = 0; + +__declspec(thread) PRThread *_pr_io_restarted_io = NULL; +DWORD _pr_io_restartedIOIndex; /* The thread local storage slot for each + * thread is initialized to NULL. */ + +PRBool _nt_version_gets_lockfile_completion; + +struct _MDLock _pr_ioq_lock; +extern _MDLock _nt_idleLock; +extern PRCList _nt_idleList; +extern PRUint32 _nt_idleCount; + +#define CLOSE_TIMEOUT PR_SecondsToInterval(5) + +/* + * NSPR-to-NT access right mapping table for files. + */ +static DWORD fileAccessTable[] = { + FILE_GENERIC_READ, + FILE_GENERIC_WRITE, + FILE_GENERIC_EXECUTE +}; + +/* + * NSPR-to-NT access right mapping table for directories. + */ +static DWORD dirAccessTable[] = { + FILE_GENERIC_READ, + FILE_GENERIC_WRITE|FILE_DELETE_CHILD, + FILE_GENERIC_EXECUTE +}; + +static PRBool IsPrevCharSlash(const char *str, const char *current); + +#define _NEED_351_FILE_LOCKING_HACK +#ifdef _NEED_351_FILE_LOCKING_HACK +#define _PR_LOCAL_FILE 1 +#define _PR_REMOTE_FILE 2 +PRBool IsFileLocalInit(); +PRInt32 IsFileLocal(HANDLE hFile); +#endif /* _NEED_351_FILE_LOCKING_HACK */ + +static PRInt32 _md_MakeNonblock(HANDLE); + +static PROsfd _nt_nonblock_accept(PRFileDesc *fd, struct sockaddr *addr, int *addrlen, PRIntervalTime); +static PRInt32 _nt_nonblock_connect(PRFileDesc *fd, struct sockaddr *addr, int addrlen, PRIntervalTime); +static PRInt32 _nt_nonblock_recv(PRFileDesc *fd, char *buf, int len, int flags, PRIntervalTime); +static PRInt32 _nt_nonblock_send(PRFileDesc *fd, char *buf, int len, PRIntervalTime); +static PRInt32 _nt_nonblock_writev(PRFileDesc *fd, const PRIOVec *iov, int size, PRIntervalTime); +static PRInt32 _nt_nonblock_sendto(PRFileDesc *, const char *, int, const struct sockaddr *, int, PRIntervalTime); +static PRInt32 _nt_nonblock_recvfrom(PRFileDesc *, char *, int, struct sockaddr *, int *, PRIntervalTime); + +/* + * We cannot associate a fd (a socket) with an I/O completion port + * if the fd is nonblocking or inheritable. + * + * Nonblocking socket I/O won't work if the socket is associated with + * an I/O completion port. + * + * An inheritable fd cannot be associated with an I/O completion port + * because the completion notification of async I/O initiated by the + * child process is still posted to the I/O completion port in the + * parent process. + */ +#define _NT_USE_NB_IO(fd) \ + ((fd)->secret->nonblocking || (fd)->secret->inheritable == _PR_TRI_TRUE) + +/* + * UDP support + * + * UDP is supported on NT by the continuation thread mechanism. + * The code is borrowed from ptio.c in pthreads nspr, hence the + * PT and pt prefixes. This mechanism is in fact general and + * not limited to UDP. For now, only UDP's recvfrom and sendto + * go through the continuation thread if they get WSAEWOULDBLOCK + * on first try. Recv and send on a connected UDP socket still + * goes through asychronous io. + */ + +#define PT_DEFAULT_SELECT_MSEC 100 + +typedef struct pt_Continuation pt_Continuation; +typedef PRBool (*ContinuationFn)(pt_Continuation *op, PRInt16 revent); + +typedef enum pr_ContuationStatus +{ + pt_continuation_sumbitted, + pt_continuation_inprogress, + pt_continuation_abort, + pt_continuation_done +} pr_ContuationStatus; + +struct pt_Continuation +{ + /* These objects are linked in ascending timeout order */ + pt_Continuation *next, *prev; /* self linked list of these things */ + + /* The building of the continuation operation */ + ContinuationFn function; /* what function to continue */ + union { + SOCKET osfd; + } arg1; /* #1 - the op's fd */ + union { + void* buffer; + } arg2; /* #2 - primary transfer buffer */ + union { + PRIntn amount; + } arg3; /* #3 - size of 'buffer' */ + union { + PRIntn flags; + } arg4; /* #4 - read/write flags */ + union { + PRNetAddr *addr; + } arg5; /* #5 - send/recv address */ + + PRIntervalTime timeout; /* representation of the timeout */ + + PRIntn event; /* flags for select()'s events */ + + /* + ** The representation and notification of the results of the operation. + ** These function can either return an int return code or a pointer to + ** some object. + */ + union { + PRIntn code; + void *object; + } result; + + PRIntn syserrno; /* in case it failed, why (errno) */ + pr_ContuationStatus status; /* the status of the operation */ + PRCondVar *complete; /* to notify the initiating thread */ +}; + +static struct pt_TimedQueue +{ + PRLock *ml; /* a little protection */ + PRThread *thread; /* internal thread's identification */ + PRCondVar *new_op; /* new operation supplied */ + PRCondVar *finish_op; /* an existing operation finished */ + PRUintn op_count; /* number of operations in the list */ + pt_Continuation *head, *tail; /* head/tail of list of operations */ + + pt_Continuation *op; /* timed operation furthest in future */ + PRIntervalTime epoch; /* the epoch of 'timed' */ +} pt_tq; + +#if defined(DEBUG) +static struct pt_debug_s +{ + PRIntn predictionsFoiled; + PRIntn pollingListMax; + PRIntn continuationsServed; +} pt_debug; +#endif /* DEBUG */ + +static void ContinuationThread(void *arg); +static PRInt32 pt_SendTo( + SOCKET osfd, const void *buf, + PRInt32 amount, PRInt32 flags, const PRNetAddr *addr, + PRIntn addrlen, PRIntervalTime timeout); +static PRInt32 pt_RecvFrom(SOCKET osfd, void *buf, PRInt32 amount, + PRInt32 flags, PRNetAddr *addr, PRIntn *addr_len, PRIntervalTime timeout); + + +/* The key returned from GetQueuedCompletionStatus() is used to determine what + * type of completion we have. We differentiate between IO completions and + * CVAR completions. + */ +#define KEY_IO 0xaaaaaaaa +#define KEY_CVAR 0xbbbbbbbb + +PRInt32 +_PR_MD_PAUSE_CPU(PRIntervalTime ticks) +{ + int awoken = 0; + unsigned long bytes, key; + int rv; + LPOVERLAPPED olp; + _MDOverlapped *mdOlp; + PRUint32 timeout; + + if (_nt_idleCount > 0) { + PRThread *deadThread; + + _MD_LOCK(&_nt_idleLock); + while( !PR_CLIST_IS_EMPTY(&_nt_idleList) ) { + deadThread = _PR_THREAD_PTR(PR_LIST_HEAD(&_nt_idleList)); + PR_REMOVE_LINK(&deadThread->links); + + PR_ASSERT(deadThread->state == _PR_DEAD_STATE); + + /* XXXMB - cleanup to do here? */ + if ( !_PR_IS_NATIVE_THREAD(deadThread) ) { + /* Spinlock while user thread is still running. + * There is no way to use a condition variable here. The thread + * is dead, and we have to wait until we switch off the dead + * thread before we can kill the fiber completely. + */ + while ( deadThread->no_sched) + ; + + DeleteFiber(deadThread->md.fiber_id); + } + memset(deadThread, 0xa, sizeof(PRThread)); /* debugging */ + if (!deadThread->threadAllocatedOnStack) { + PR_DELETE(deadThread); + } + _nt_idleCount--; + } + _MD_UNLOCK(&_nt_idleLock); + } + + if (ticks == PR_INTERVAL_NO_TIMEOUT) +#if 0 + timeout = INFINITE; +#else + /* + * temporary hack to poll the runq every 5 seconds because of bug in + * native threads creating user threads and not poking the right cpu. + * + * A local thread that was interrupted is bound to its current + * cpu but there is no easy way for the interrupter to poke the + * right cpu. This is a hack to poll the runq every 5 seconds. + */ + timeout = 5000; +#endif + else { + timeout = PR_IntervalToMilliseconds(ticks); + } + + /* + * The idea of looping here is to complete as many IOs as possible before + * returning. This should minimize trips to the idle thread. + */ + while(1) { + rv = GetQueuedCompletionStatus( + _pr_completion_port, + &bytes, + &key, + &olp, + timeout); + if (rv == 0 && olp == NULL) { + /* Error in GetQueuedCompetionStatus */ + if (GetLastError() != WAIT_TIMEOUT) { + /* ARGH - what can we do here? Log an error? XXXMB */ + return -1; + } else { + /* If awoken == 0, then we just had a timeout */ + return awoken; + } + } + + if (olp == NULL) { + return 0; + } + + mdOlp = (_MDOverlapped *)olp; + + if (mdOlp->ioModel == _MD_MultiWaitIO) { + PRRecvWait *desc; + PRWaitGroup *group; + PRThread *thred = NULL; + PRMWStatus mwstatus; + + desc = mdOlp->data.mw.desc; + PR_ASSERT(desc != NULL); + mwstatus = rv ? PR_MW_SUCCESS : PR_MW_FAILURE; + if (InterlockedCompareExchange((PVOID *)&desc->outcome, + (PVOID)mwstatus, (PVOID)PR_MW_PENDING) + == (PVOID)PR_MW_PENDING) { + if (mwstatus == PR_MW_SUCCESS) { + desc->bytesRecv = bytes; + } else { + mdOlp->data.mw.error = GetLastError(); + } + } + group = mdOlp->data.mw.group; + PR_ASSERT(group != NULL); + + _PR_MD_LOCK(&group->mdlock); + PR_APPEND_LINK(&mdOlp->data.mw.links, &group->io_ready); + PR_ASSERT(desc->fd != NULL); + NT_HashRemoveInternal(group, desc->fd); + if (!PR_CLIST_IS_EMPTY(&group->wait_list)) { + thred = _PR_THREAD_CONDQ_PTR(PR_LIST_HEAD(&group->wait_list)); + PR_REMOVE_LINK(&thred->waitQLinks); + } + _PR_MD_UNLOCK(&group->mdlock); + + if (thred) { + if (!_PR_IS_NATIVE_THREAD(thred)) { + int pri = thred->priority; + _PRCPU *lockedCPU = _PR_MD_CURRENT_CPU(); + _PR_THREAD_LOCK(thred); + if (thred->flags & _PR_ON_PAUSEQ) { + _PR_SLEEPQ_LOCK(thred->cpu); + _PR_DEL_SLEEPQ(thred, PR_TRUE); + _PR_SLEEPQ_UNLOCK(thred->cpu); + _PR_THREAD_UNLOCK(thred); + thred->cpu = lockedCPU; + thred->state = _PR_RUNNABLE; + _PR_RUNQ_LOCK(lockedCPU); + _PR_ADD_RUNQ(thred, lockedCPU, pri); + _PR_RUNQ_UNLOCK(lockedCPU); + } else { + /* + * The thread was just interrupted and moved + * from the pause queue to the run queue. + */ + _PR_THREAD_UNLOCK(thred); + } + } else { + _PR_THREAD_LOCK(thred); + thred->state = _PR_RUNNABLE; + _PR_THREAD_UNLOCK(thred); + ReleaseSemaphore(thred->md.blocked_sema, 1, NULL); + } + } + } else { + PRThread *completed_io; + + PR_ASSERT(mdOlp->ioModel == _MD_BlockingIO); + completed_io = _PR_THREAD_MD_TO_PTR(mdOlp->data.mdThread); + completed_io->md.blocked_io_status = rv; + if (rv == 0) { + completed_io->md.blocked_io_error = GetLastError(); + } + completed_io->md.blocked_io_bytes = bytes; + + if ( !_PR_IS_NATIVE_THREAD(completed_io) ) { + int pri = completed_io->priority; + _PRCPU *lockedCPU = _PR_MD_CURRENT_CPU(); + + /* The KEY_CVAR notification only occurs when a native thread + * is notifying a user thread. For user-user notifications + * the wakeup occurs by having the notifier place the thread + * on the runq directly; for native-native notifications the + * wakeup occurs by calling ReleaseSemaphore. + */ + if ( key == KEY_CVAR ) { + PR_ASSERT(completed_io->io_pending == PR_FALSE); + PR_ASSERT(completed_io->io_suspended == PR_FALSE); + PR_ASSERT(completed_io->md.thr_bound_cpu == NULL); + + /* Thread has already been deleted from sleepQ */ + + /* Switch CPU and add to runQ */ + completed_io->cpu = lockedCPU; + completed_io->state = _PR_RUNNABLE; + _PR_RUNQ_LOCK(lockedCPU); + _PR_ADD_RUNQ(completed_io, lockedCPU, pri); + _PR_RUNQ_UNLOCK(lockedCPU); + } else { + PR_ASSERT(key == KEY_IO); + PR_ASSERT(completed_io->io_pending == PR_TRUE); + + _PR_THREAD_LOCK(completed_io); + + completed_io->io_pending = PR_FALSE; + + /* If io_suspended is true, then this IO has already resumed. + * We don't need to do anything; because the thread is + * already running. + */ + if (completed_io->io_suspended == PR_FALSE) { + if (completed_io->flags & (_PR_ON_SLEEPQ|_PR_ON_PAUSEQ)) { + _PR_SLEEPQ_LOCK(completed_io->cpu); + _PR_DEL_SLEEPQ(completed_io, PR_TRUE); + _PR_SLEEPQ_UNLOCK(completed_io->cpu); + + _PR_THREAD_UNLOCK(completed_io); + + /* + * If an I/O operation is suspended, the thread + * must be running on the same cpu on which the + * I/O operation was issued. + */ + PR_ASSERT(!completed_io->md.thr_bound_cpu || + (completed_io->cpu == completed_io->md.thr_bound_cpu)); + + if (!completed_io->md.thr_bound_cpu) { + completed_io->cpu = lockedCPU; + } + completed_io->state = _PR_RUNNABLE; + _PR_RUNQ_LOCK(completed_io->cpu); + _PR_ADD_RUNQ(completed_io, completed_io->cpu, pri); + _PR_RUNQ_UNLOCK(completed_io->cpu); + } else { + _PR_THREAD_UNLOCK(completed_io); + } + } else { + _PR_THREAD_UNLOCK(completed_io); + } + } + } else { + /* For native threads, they are only notified through this loop + * when completing IO. So, don't worry about this being a CVAR + * notification, because that is not possible. + */ + _PR_THREAD_LOCK(completed_io); + completed_io->io_pending = PR_FALSE; + if (completed_io->io_suspended == PR_FALSE) { + completed_io->state = _PR_RUNNABLE; + _PR_THREAD_UNLOCK(completed_io); + rv = ReleaseSemaphore(completed_io->md.blocked_sema, + 1, NULL); + PR_ASSERT(0 != rv); + } else { + _PR_THREAD_UNLOCK(completed_io); + } + } + } + + awoken++; + timeout = 0; /* Don't block on subsequent trips through the loop */ + } + + /* never reached */ + return 0; +} + +static PRStatus +_native_thread_md_wait(PRThread *thread, PRIntervalTime ticks) +{ + DWORD rv; + PRUint32 msecs = (ticks == PR_INTERVAL_NO_TIMEOUT) ? + INFINITE : PR_IntervalToMilliseconds(ticks); + + /* + * thread waiting for a cvar or a joining thread + */ + rv = WaitForSingleObject(thread->md.blocked_sema, msecs); + switch(rv) { + case WAIT_OBJECT_0: + return PR_SUCCESS; + break; + case WAIT_TIMEOUT: + _PR_THREAD_LOCK(thread); + PR_ASSERT (thread->state != _PR_IO_WAIT); + if (thread->wait.cvar != NULL) { + PR_ASSERT(thread->state == _PR_COND_WAIT); + thread->wait.cvar = NULL; + thread->state = _PR_RUNNING; + _PR_THREAD_UNLOCK(thread); + } else { + /* The CVAR was notified just as the timeout + * occurred. This left the semaphore in the + * signaled state. Call WaitForSingleObject() + * to clear the semaphore. + */ + _PR_THREAD_UNLOCK(thread); + rv = WaitForSingleObject(thread->md.blocked_sema, INFINITE); + PR_ASSERT(rv == WAIT_OBJECT_0); + } + return PR_SUCCESS; + break; + default: + return PR_FAILURE; + break; + } + + return PR_SUCCESS; +} + +PRStatus +_PR_MD_WAIT(PRThread *thread, PRIntervalTime ticks) +{ + DWORD rv; + + if (_native_threads_only) { + return(_native_thread_md_wait(thread, ticks)); + } + if ( thread->flags & _PR_GLOBAL_SCOPE ) { + PRUint32 msecs = (ticks == PR_INTERVAL_NO_TIMEOUT) ? + INFINITE : PR_IntervalToMilliseconds(ticks); + rv = WaitForSingleObject(thread->md.blocked_sema, msecs); + switch(rv) { + case WAIT_OBJECT_0: + return PR_SUCCESS; + break; + case WAIT_TIMEOUT: + _PR_THREAD_LOCK(thread); + if (thread->state == _PR_IO_WAIT) { + if (thread->io_pending == PR_TRUE) { + thread->state = _PR_RUNNING; + thread->io_suspended = PR_TRUE; + _PR_THREAD_UNLOCK(thread); + } else { + /* The IO completed just at the same time the timeout + * occurred. This left the semaphore in the signaled + * state. Call WaitForSingleObject() to clear the + * semaphore. + */ + _PR_THREAD_UNLOCK(thread); + rv = WaitForSingleObject(thread->md.blocked_sema, INFINITE); + PR_ASSERT(rv == WAIT_OBJECT_0); + } + } else { + if (thread->wait.cvar != NULL) { + PR_ASSERT(thread->state == _PR_COND_WAIT); + thread->wait.cvar = NULL; + thread->state = _PR_RUNNING; + _PR_THREAD_UNLOCK(thread); + } else { + /* The CVAR was notified just as the timeout + * occurred. This left the semaphore in the + * signaled state. Call WaitForSingleObject() + * to clear the semaphore. + */ + _PR_THREAD_UNLOCK(thread); + rv = WaitForSingleObject(thread->md.blocked_sema, INFINITE); + PR_ASSERT(rv == WAIT_OBJECT_0); + } + } + return PR_SUCCESS; + break; + default: + return PR_FAILURE; + break; + } + } else { + PRInt32 is; + + _PR_INTSOFF(is); + _PR_MD_SWITCH_CONTEXT(thread); + } + + return PR_SUCCESS; +} + +static void +_native_thread_io_nowait( + PRThread *thread, + int rv, + int bytes) +{ + int rc; + + PR_ASSERT(rv != 0); + _PR_THREAD_LOCK(thread); + if (thread->state == _PR_IO_WAIT) { + PR_ASSERT(thread->io_suspended == PR_FALSE); + PR_ASSERT(thread->io_pending == PR_TRUE); + thread->state = _PR_RUNNING; + thread->io_pending = PR_FALSE; + _PR_THREAD_UNLOCK(thread); + } else { + /* The IO completed just at the same time the + * thread was interrupted. This left the semaphore + * in the signaled state. Call WaitForSingleObject() + * to clear the semaphore. + */ + PR_ASSERT(thread->io_suspended == PR_TRUE); + PR_ASSERT(thread->io_pending == PR_TRUE); + thread->io_pending = PR_FALSE; + _PR_THREAD_UNLOCK(thread); + rc = WaitForSingleObject(thread->md.blocked_sema, INFINITE); + PR_ASSERT(rc == WAIT_OBJECT_0); + } + + thread->md.blocked_io_status = rv; + thread->md.blocked_io_bytes = bytes; + rc = ResetEvent(thread->md.thr_event); + PR_ASSERT(rc != 0); + return; +} + +static PRStatus +_native_thread_io_wait(PRThread *thread, PRIntervalTime ticks) +{ + DWORD rv, bytes; +#define _NATIVE_IO_WAIT_HANDLES 2 +#define _NATIVE_WAKEUP_EVENT_INDEX 0 +#define _NATIVE_IO_EVENT_INDEX 1 + + HANDLE wait_handles[_NATIVE_IO_WAIT_HANDLES]; + + PRUint32 msecs = (ticks == PR_INTERVAL_NO_TIMEOUT) ? + INFINITE : PR_IntervalToMilliseconds(ticks); + + PR_ASSERT(thread->flags & _PR_GLOBAL_SCOPE); + + wait_handles[0] = thread->md.blocked_sema; + wait_handles[1] = thread->md.thr_event; + rv = WaitForMultipleObjects(_NATIVE_IO_WAIT_HANDLES, wait_handles, + FALSE, msecs); + + switch(rv) { + case WAIT_OBJECT_0 + _NATIVE_IO_EVENT_INDEX: + /* + * I/O op completed + */ + _PR_THREAD_LOCK(thread); + if (thread->state == _PR_IO_WAIT) { + + PR_ASSERT(thread->io_suspended == PR_FALSE); + PR_ASSERT(thread->io_pending == PR_TRUE); + thread->state = _PR_RUNNING; + thread->io_pending = PR_FALSE; + _PR_THREAD_UNLOCK(thread); + } else { + /* The IO completed just at the same time the + * thread was interrupted. This led to us being + * notified twice. Call WaitForSingleObject() + * to clear the semaphore. + */ + PR_ASSERT(thread->io_suspended == PR_TRUE); + PR_ASSERT(thread->io_pending == PR_TRUE); + thread->io_pending = PR_FALSE; + _PR_THREAD_UNLOCK(thread); + rv = WaitForSingleObject(thread->md.blocked_sema, + INFINITE); + PR_ASSERT(rv == WAIT_OBJECT_0); + } + + rv = GetOverlappedResult((HANDLE) thread->io_fd, + &thread->md.overlapped.overlapped, &bytes, FALSE); + + thread->md.blocked_io_status = rv; + if (rv != 0) { + thread->md.blocked_io_bytes = bytes; + } else { + thread->md.blocked_io_error = GetLastError(); + PR_ASSERT(ERROR_IO_PENDING != thread->md.blocked_io_error); + } + rv = ResetEvent(thread->md.thr_event); + PR_ASSERT(rv != 0); + break; + case WAIT_OBJECT_0 + _NATIVE_WAKEUP_EVENT_INDEX: + /* + * I/O interrupted; + */ +#ifdef DEBUG + _PR_THREAD_LOCK(thread); + PR_ASSERT(thread->io_suspended == PR_TRUE); + _PR_THREAD_UNLOCK(thread); +#endif + break; + case WAIT_TIMEOUT: + _PR_THREAD_LOCK(thread); + if (thread->state == _PR_IO_WAIT) { + thread->state = _PR_RUNNING; + thread->io_suspended = PR_TRUE; + _PR_THREAD_UNLOCK(thread); + } else { + /* + * The thread was interrupted just as the timeout + * occurred. This left the semaphore in the signaled + * state. Call WaitForSingleObject() to clear the + * semaphore. + */ + PR_ASSERT(thread->io_suspended == PR_TRUE); + _PR_THREAD_UNLOCK(thread); + rv = WaitForSingleObject(thread->md.blocked_sema, INFINITE); + PR_ASSERT(rv == WAIT_OBJECT_0); + } + break; + default: + return PR_FAILURE; + break; + } + + return PR_SUCCESS; +} + + +static PRStatus +_NT_IO_WAIT(PRThread *thread, PRIntervalTime timeout) +{ + PRBool fWait = PR_TRUE; + + if (_native_threads_only) { + return(_native_thread_io_wait(thread, timeout)); + } + if (!_PR_IS_NATIVE_THREAD(thread)) { + + _PR_THREAD_LOCK(thread); + + /* The IO may have already completed; if so, don't add to sleepQ, + * since we are already on the runQ! + */ + if (thread->io_pending == PR_TRUE) { + _PR_SLEEPQ_LOCK(thread->cpu); + _PR_ADD_SLEEPQ(thread, timeout); + _PR_SLEEPQ_UNLOCK(thread->cpu); + } else { + fWait = PR_FALSE; + } + _PR_THREAD_UNLOCK(thread); + } + if (fWait) { + return _PR_MD_WAIT(thread, timeout); + } + else { + return PR_SUCCESS; + } +} + +/* + * Unblock threads waiting for I/O + * used when interrupting threads + * + * NOTE: The thread lock should held when this function is called. + * On return, the thread lock is released. + */ +void _PR_Unblock_IO_Wait(PRThread *thr) +{ + PRStatus rv; + _PRCPU *cpu = thr->cpu; + + PR_ASSERT(thr->state == _PR_IO_WAIT); + /* + * A thread for which an I/O timed out or was interrupted cannot be + * in an IO_WAIT state except as a result of calling PR_Close or + * PR_NT_CancelIo for the FD. For these two cases, _PR_IO_WAIT state + * is not interruptible + */ + if (thr->md.interrupt_disabled == PR_TRUE) { + _PR_THREAD_UNLOCK(thr); + return; + } + thr->io_suspended = PR_TRUE; + thr->state = _PR_RUNNABLE; + + if (!_PR_IS_NATIVE_THREAD(thr)) { + PRThread *me = _PR_MD_CURRENT_THREAD(); + PR_ASSERT(thr->flags & (_PR_ON_SLEEPQ | _PR_ON_PAUSEQ)); + _PR_SLEEPQ_LOCK(cpu); + _PR_DEL_SLEEPQ(thr, PR_TRUE); + _PR_SLEEPQ_UNLOCK(cpu); + /* + * this thread will continue to run on the same cpu until the + * I/O is aborted by closing the FD or calling CancelIO + */ + thr->md.thr_bound_cpu = cpu; + + PR_ASSERT(!(thr->flags & _PR_IDLE_THREAD)); + _PR_AddThreadToRunQ(me, thr); + } + _PR_THREAD_UNLOCK(thr); + rv = _PR_MD_WAKEUP_WAITER(thr); + PR_ASSERT(PR_SUCCESS == rv); +} + +/* Resume an outstanding IO; requires that after the switch, we disable */ +static PRStatus +_NT_ResumeIO(PRThread *thread, PRIntervalTime ticks) +{ + PRBool fWait = PR_TRUE; + + if (!_PR_IS_NATIVE_THREAD(thread)) { + if (_pr_use_static_tls) { + _pr_io_restarted_io = thread; + } else { + TlsSetValue(_pr_io_restartedIOIndex, thread); + } + } else { + _PR_THREAD_LOCK(thread); + if (!thread->io_pending) { + fWait = PR_FALSE; + } + thread->io_suspended = PR_FALSE; + + _PR_THREAD_UNLOCK(thread); + } + /* We don't put ourselves back on the sleepQ yet; until we + * set the suspended bit to false, we can't do that. Just save + * the sleep time here, and then continue. The restarted_io handler + * will add us to the sleepQ if needed. + */ + thread->sleep = ticks; + + if (fWait) { + if (!_PR_IS_NATIVE_THREAD(thread)) { + return _PR_MD_WAIT(thread, ticks); + } + else { + return _NT_IO_WAIT(thread, ticks); + } + } + return PR_SUCCESS; +} + +PRStatus +_PR_MD_WAKEUP_WAITER(PRThread *thread) +{ + if (thread == NULL) { + /* If thread is NULL, we aren't waking a thread, we're just poking + * idle thread + */ + if ( PostQueuedCompletionStatus(_pr_completion_port, 0, + KEY_CVAR, NULL) == FALSE) { + return PR_FAILURE; + } + return PR_SUCCESS; + } + + if ( _PR_IS_NATIVE_THREAD(thread) ) { + if (ReleaseSemaphore(thread->md.blocked_sema, 1, NULL) == FALSE) { + return PR_FAILURE; + } + else { + return PR_SUCCESS; + } + } else { + PRThread *me = _PR_MD_CURRENT_THREAD(); + + /* When a Native thread has to awaken a user thread, it has to poke + * the completion port because all user threads might be idle, and + * thus the CPUs are just waiting for a completion. + * + * XXXMB - can we know when we are truely idle (and not checking + * the runq)? + */ + if ((_PR_IS_NATIVE_THREAD(me) || (thread->cpu != me->cpu)) && + (!thread->md.thr_bound_cpu)) { + /* The thread should not be in any queue */ + PR_ASSERT(thread->queueCount == 0); + if ( PostQueuedCompletionStatus(_pr_completion_port, 0, + KEY_CVAR, &(thread->md.overlapped.overlapped)) == FALSE) { + return PR_FAILURE; + } + } + return PR_SUCCESS; + } +} + +void +_PR_MD_INIT_IO() +{ + WORD WSAVersion = 0x0101; + WSADATA WSAData; + int err; + OSVERSIONINFO OSversion; + + err = WSAStartup( WSAVersion, &WSAData ); + PR_ASSERT(0 == err); + + _pr_completion_port = CreateIoCompletionPort(INVALID_HANDLE_VALUE, + NULL, + 0, + 0); + + _MD_NEW_LOCK(&_pr_recycle_lock); + _MD_NEW_LOCK(&_pr_ioq_lock); + + OSversion.dwOSVersionInfoSize = sizeof(OSVERSIONINFO); + if (GetVersionEx(&OSversion)) { + _nt_version_gets_lockfile_completion = PR_FALSE; + if (OSversion.dwMajorVersion >= 4) { + _nt_version_gets_lockfile_completion = PR_TRUE; + } + } else { + PR_ASSERT(0); + } + +#ifdef _NEED_351_FILE_LOCKING_HACK + IsFileLocalInit(); +#endif /* _NEED_351_FILE_LOCKING_HACK */ + + /* + * UDP support: start up the continuation thread + */ + + pt_tq.op_count = 0; + pt_tq.head = pt_tq.tail = NULL; + pt_tq.ml = PR_NewLock(); + PR_ASSERT(NULL != pt_tq.ml); + pt_tq.new_op = PR_NewCondVar(pt_tq.ml); + PR_ASSERT(NULL != pt_tq.new_op); +#if defined(DEBUG) + memset(&pt_debug, 0, sizeof(struct pt_debug_s)); +#endif + + pt_tq.thread = PR_CreateThread( + PR_SYSTEM_THREAD, ContinuationThread, NULL, + PR_PRIORITY_URGENT, PR_GLOBAL_THREAD, PR_JOINABLE_THREAD, 0); + + PR_ASSERT(NULL != pt_tq.thread); + +#ifdef DEBUG + /* Doublecheck _pr_filetime_offset's hard-coded value is correct. */ + { + SYSTEMTIME systime; + union { + PRTime prt; + FILETIME ft; + } filetime; + BOOL rv; + + systime.wYear = 1970; + systime.wMonth = 1; + /* wDayOfWeek is ignored */ + systime.wDay = 1; + systime.wHour = 0; + systime.wMinute = 0; + systime.wSecond = 0; + systime.wMilliseconds = 0; + + rv = SystemTimeToFileTime(&systime, &filetime.ft); + PR_ASSERT(0 != rv); + PR_ASSERT(filetime.prt == _pr_filetime_offset); + } +#endif /* DEBUG */ + + _PR_NT_InitSids(); +} + +/* --- SOCKET IO --------------------------------------------------------- */ + +/* _md_get_recycled_socket() + * Get a socket from the recycle bin; if no sockets are in the bin, + * create one. The socket will be passed to AcceptEx() as the + * second argument. + */ +static SOCKET +_md_get_recycled_socket(int af) +{ + SOCKET rv; + + _MD_LOCK(&_pr_recycle_lock); + if (af == AF_INET && _pr_recycle_INET_tail) { + _pr_recycle_INET_tail--; + rv = _pr_recycle_INET_array[_pr_recycle_INET_tail]; + _MD_UNLOCK(&_pr_recycle_lock); + return rv; + } + if (af == AF_INET6 && _pr_recycle_INET6_tail) { + _pr_recycle_INET6_tail--; + rv = _pr_recycle_INET6_array[_pr_recycle_INET6_tail]; + _MD_UNLOCK(&_pr_recycle_lock); + return rv; + } + _MD_UNLOCK(&_pr_recycle_lock); + + rv = _PR_MD_SOCKET(af, SOCK_STREAM, 0); + if (rv != INVALID_SOCKET && _md_Associate((HANDLE)rv) == 0) { + closesocket(rv); + return INVALID_SOCKET; + } + return rv; +} + +/* _md_put_recycled_socket() + * Add a socket to the recycle bin. + */ +static void +_md_put_recycled_socket(SOCKET newsock, int af) +{ + PR_ASSERT(_pr_recycle_INET_tail >= 0); + PR_ASSERT(_pr_recycle_INET6_tail >= 0); + + _MD_LOCK(&_pr_recycle_lock); + if (af == AF_INET && _pr_recycle_INET_tail < RECYCLE_SIZE) { + _pr_recycle_INET_array[_pr_recycle_INET_tail] = newsock; + _pr_recycle_INET_tail++; + _MD_UNLOCK(&_pr_recycle_lock); + } else if (af == AF_INET6 && _pr_recycle_INET6_tail < RECYCLE_SIZE) { + _pr_recycle_INET6_array[_pr_recycle_INET6_tail] = newsock; + _pr_recycle_INET6_tail++; + _MD_UNLOCK(&_pr_recycle_lock); + } else { + _MD_UNLOCK(&_pr_recycle_lock); + closesocket(newsock); + } + + return; +} + +/* _md_Associate() + * Associates a file with the completion port. + * Returns 0 on failure, 1 on success. + */ +PRInt32 +_md_Associate(HANDLE file) +{ + HANDLE port; + + if (!_native_threads_only) { + port = CreateIoCompletionPort((HANDLE)file, + _pr_completion_port, + KEY_IO, + 0); + + /* XXX should map error codes on failures */ + return (port == _pr_completion_port); + } else { + return 1; + } +} + +/* + * _md_MakeNonblock() + * Make a socket nonblocking. + * Returns 0 on failure, 1 on success. + */ +static PRInt32 +_md_MakeNonblock(HANDLE file) +{ + int rv; + u_long one = 1; + + rv = ioctlsocket((SOCKET)file, FIONBIO, &one); + /* XXX should map error codes on failures */ + return (rv == 0); +} + +static int missing_completions = 0; +static int max_wait_loops = 0; + +static PRInt32 +_NT_IO_ABORT(PROsfd sock) +{ + PRThread *me = _PR_MD_CURRENT_THREAD(); + PRBool fWait; + PRInt32 rv; + int loop_count; + + /* This is a clumsy way to abort the IO, but it is all we can do. + * It looks a bit racy, but we handle all the cases. + * case 1: IO completes before calling closesocket + * case 1a: fWait is set to PR_FALSE + * This should e the most likely case. We'll properly + * not wait call _NT_IO_WAIT, since the closesocket() + * won't be forcing a completion. + * case 1b: fWait is set to PR_TRUE + * This hopefully won't happen much. When it does, this + * thread will timeout in _NT_IO_WAIT for CLOSE_INTERVAL + * before cleaning up. + * case 2: IO does not complete before calling closesocket + * case 2a: IO never completes + * This is the likely case. We'll close it and wait + * for the completion forced by the close. Return should + * be immediate. + * case 2b: IO completes just after calling closesocket + * Since the closesocket is issued, we'll either get a + * completion back for the real IO or for the close. We + * don't really care. It may not even be possible to get + * a real completion here. In any event, we'll awaken + * from NT_IO_WAIT immediately. + */ + + _PR_THREAD_LOCK(me); + fWait = me->io_pending; + if (fWait) { + /* + * If there's still I/O pending, it should have already timed + * out once before this function is called. + */ + PR_ASSERT(me->io_suspended == PR_TRUE); + + /* Set up to wait for I/O completion again */ + me->state = _PR_IO_WAIT; + me->io_suspended = PR_FALSE; + me->md.interrupt_disabled = PR_TRUE; + } + _PR_THREAD_UNLOCK(me); + + /* Close the socket if there is one */ + if (sock != INVALID_SOCKET) { + rv = closesocket((SOCKET)sock); + } + + /* If there was I/O pending before the close, wait for it to complete */ + if (fWait) { + + /* Wait and wait for the I/O to complete */ + for (loop_count = 0; fWait; ++loop_count) { + + _NT_IO_WAIT(me, CLOSE_TIMEOUT); + + _PR_THREAD_LOCK(me); + fWait = me->io_pending; + if (fWait) { + PR_ASSERT(me->io_suspended == PR_TRUE); + me->state = _PR_IO_WAIT; + me->io_suspended = PR_FALSE; + } + _PR_THREAD_UNLOCK(me); + + if (loop_count > max_wait_loops) { + max_wait_loops = loop_count; + } + } + + if (loop_count > 1) { + ++missing_completions; + } + + me->md.interrupt_disabled = PR_FALSE; + me->io_pending = PR_FALSE; + me->state = _PR_RUNNING; + } + + PR_ASSERT(me->io_pending == PR_FALSE); + me->md.thr_bound_cpu = NULL; + me->io_suspended = PR_FALSE; + + return rv; +} + + +PROsfd +_PR_MD_SOCKET(int af, int type, int flags) +{ + SOCKET sock; + + sock = socket(af, type, flags); + + if (sock == INVALID_SOCKET) { + _PR_MD_MAP_SOCKET_ERROR(WSAGetLastError()); + } + + return (PROsfd)sock; +} + +struct connect_data_s { + PRInt32 status; + PRInt32 error; + PROsfd osfd; + struct sockaddr *addr; + PRUint32 addrlen; + PRIntervalTime timeout; +}; + +void +_PR_MD_connect_thread(void *cdata) +{ + struct connect_data_s *cd = (struct connect_data_s *)cdata; + + cd->status = connect(cd->osfd, cd->addr, cd->addrlen); + + if (cd->status == SOCKET_ERROR) { + cd->error = WSAGetLastError(); + } + + return; +} + + +PRInt32 +_PR_MD_CONNECT(PRFileDesc *fd, const PRNetAddr *addr, PRUint32 addrlen, + PRIntervalTime timeout) +{ + PROsfd osfd = fd->secret->md.osfd; + PRInt32 rv, err; + u_long nbio; + PRInt32 rc; + + if (fd->secret->nonblocking) { + if (!fd->secret->md.io_model_committed) { + rv = _md_MakeNonblock((HANDLE)osfd); + PR_ASSERT(0 != rv); + fd->secret->md.io_model_committed = PR_TRUE; + } + + if ((rv = connect(osfd, (struct sockaddr *) addr, addrlen)) == -1) { + err = WSAGetLastError(); + _PR_MD_MAP_CONNECT_ERROR(err); + } + return rv; + } + + /* + * Temporarily make the socket non-blocking so that we can + * initiate a non-blocking connect and wait for its completion + * (with a timeout) in select. + */ + PR_ASSERT(!fd->secret->md.io_model_committed); + nbio = 1; + rv = ioctlsocket((SOCKET)osfd, FIONBIO, &nbio); + PR_ASSERT(0 == rv); + + rc = _nt_nonblock_connect(fd, (struct sockaddr *) addr, addrlen, timeout); + + /* Set the socket back to blocking. */ + nbio = 0; + rv = ioctlsocket((SOCKET)osfd, FIONBIO, &nbio); + PR_ASSERT(0 == rv); + + return rc; +} + +PRInt32 +_PR_MD_BIND(PRFileDesc *fd, const PRNetAddr *addr, PRUint32 addrlen) +{ + PRInt32 rv; +#if 0 + int one = 1; +#endif + + rv = bind(fd->secret->md.osfd, (const struct sockaddr *)&(addr->inet), addrlen); + + if (rv == SOCKET_ERROR) { + _PR_MD_MAP_BIND_ERROR(WSAGetLastError()); + return -1; + } + +#if 0 + /* Disable nagle- so far unknown if this is good or not... + */ + rv = setsockopt(fd->secret->md.osfd, + SOL_SOCKET, + TCP_NODELAY, + (const char *)&one, + sizeof(one)); + PR_ASSERT(rv == 0); +#endif + + return 0; +} + +void _PR_MD_UPDATE_ACCEPT_CONTEXT(PROsfd accept_sock, PROsfd listen_sock) +{ + /* Sockets accept()'d with AcceptEx need to call this setsockopt before + * calling anything other than ReadFile(), WriteFile(), send(), recv(), + * Transmitfile(), and closesocket(). In order to call any other + * winsock functions, we have to make this setsockopt call. + * + * XXXMB - For the server, we *NEVER* need this in + * the "normal" code path. But now we have to call it. This is a waste + * of a system call. We'd like to only call it before calling the + * obscure socket calls, but since we don't know at that point what the + * original socket was (or even if it is still alive) we can't do it + * at that point... + */ + setsockopt((SOCKET)accept_sock, + SOL_SOCKET, + SO_UPDATE_ACCEPT_CONTEXT, + (char *)&listen_sock, + sizeof(listen_sock)); + +} + +#define INET_ADDR_PADDED (sizeof(PRNetAddr) + 16) +PROsfd +_PR_MD_FAST_ACCEPT(PRFileDesc *fd, PRNetAddr *raddr, PRUint32 *rlen, + PRIntervalTime timeout, PRBool fast, + _PR_AcceptTimeoutCallback callback, void *callbackArg) +{ + PROsfd osfd = fd->secret->md.osfd; + PRThread *me = _PR_MD_CURRENT_THREAD(); + SOCKET accept_sock; + int bytes; + PRNetAddr *Laddr; + PRNetAddr *Raddr; + PRUint32 llen, err; + int rv; + + if (_NT_USE_NB_IO(fd)) { + if (!fd->secret->md.io_model_committed) { + rv = _md_MakeNonblock((HANDLE)osfd); + PR_ASSERT(0 != rv); + fd->secret->md.io_model_committed = PR_TRUE; + } + /* + * The accepted socket inherits the nonblocking and + * inheritable (HANDLE_FLAG_INHERIT) attributes of + * the listening socket. + */ + accept_sock = _nt_nonblock_accept(fd, (struct sockaddr *)raddr, rlen, timeout); + if (!fd->secret->nonblocking) { + u_long zero = 0; + + rv = ioctlsocket(accept_sock, FIONBIO, &zero); + PR_ASSERT(0 == rv); + } + return accept_sock; + } + + if (me->io_suspended) { + PR_SetError(PR_INVALID_STATE_ERROR, 0); + return -1; + } + + if (!fd->secret->md.io_model_committed) { + rv = _md_Associate((HANDLE)osfd); + PR_ASSERT(0 != rv); + fd->secret->md.io_model_committed = PR_TRUE; + } + + if (!me->md.acceptex_buf) { + me->md.acceptex_buf = PR_MALLOC(2*INET_ADDR_PADDED); + if (!me->md.acceptex_buf) { + PR_SetError(PR_OUT_OF_MEMORY_ERROR, 0); + return -1; + } + } + + accept_sock = _md_get_recycled_socket(fd->secret->af); + if (accept_sock == INVALID_SOCKET) { + return -1; + } + + memset(&(me->md.overlapped.overlapped), 0, sizeof(OVERLAPPED)); + if (_native_threads_only) { + me->md.overlapped.overlapped.hEvent = me->md.thr_event; + } + + _PR_THREAD_LOCK(me); + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + _PR_THREAD_UNLOCK(me); + closesocket(accept_sock); + return -1; + } + me->io_pending = PR_TRUE; + me->state = _PR_IO_WAIT; + _PR_THREAD_UNLOCK(me); + me->io_fd = osfd; + + rv = AcceptEx((SOCKET)osfd, + accept_sock, + me->md.acceptex_buf, + 0, + INET_ADDR_PADDED, + INET_ADDR_PADDED, + &bytes, + &(me->md.overlapped.overlapped)); + + if ( (rv == 0) && ((err = WSAGetLastError()) != ERROR_IO_PENDING)) { + /* Argh! The IO failed */ + closesocket(accept_sock); + _PR_THREAD_LOCK(me); + me->io_pending = PR_FALSE; + me->state = _PR_RUNNING; + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + _PR_THREAD_UNLOCK(me); + return -1; + } + _PR_THREAD_UNLOCK(me); + + _PR_MD_MAP_ACCEPTEX_ERROR(err); + return -1; + } + + if (_native_threads_only && rv) { + _native_thread_io_nowait(me, rv, bytes); + } else if (_NT_IO_WAIT(me, timeout) == PR_FAILURE) { + PR_ASSERT(0); + closesocket(accept_sock); + return -1; + } + + PR_ASSERT(me->io_pending == PR_FALSE || me->io_suspended == PR_TRUE); + + if (me->io_suspended) { + closesocket(accept_sock); + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + } else { + PR_SetError(PR_IO_TIMEOUT_ERROR, 0); + } + return -1; + } + + if (me->md.blocked_io_status == 0) { + closesocket(accept_sock); + _PR_MD_MAP_ACCEPTEX_ERROR(me->md.blocked_io_error); + return -1; + } + + if (!fast) { + _PR_MD_UPDATE_ACCEPT_CONTEXT((SOCKET)accept_sock, (SOCKET)osfd); + } + + /* IO is done */ + GetAcceptExSockaddrs( + me->md.acceptex_buf, + 0, + INET_ADDR_PADDED, + INET_ADDR_PADDED, + (LPSOCKADDR *)&(Laddr), + &llen, + (LPSOCKADDR *)&(Raddr), + (unsigned int *)rlen); + + if (raddr != NULL) { + memcpy((char *)raddr, (char *)&Raddr->inet, *rlen); + } + + PR_ASSERT(me->io_pending == PR_FALSE); + + return accept_sock; +} + +PRInt32 +_PR_MD_FAST_ACCEPT_READ(PRFileDesc *sd, PROsfd *newSock, PRNetAddr **raddr, + void *buf, PRInt32 amount, PRIntervalTime timeout, + PRBool fast, _PR_AcceptTimeoutCallback callback, + void *callbackArg) +{ + PROsfd sock = sd->secret->md.osfd; + PRThread *me = _PR_MD_CURRENT_THREAD(); + int bytes; + PRNetAddr *Laddr; + PRUint32 llen, rlen, err; + int rv; + PRBool isConnected; + PRBool madeCallback = PR_FALSE; + + if (me->io_suspended) { + PR_SetError(PR_INVALID_STATE_ERROR, 0); + return -1; + } + + if (!sd->secret->md.io_model_committed) { + rv = _md_Associate((HANDLE)sock); + PR_ASSERT(0 != rv); + sd->secret->md.io_model_committed = PR_TRUE; + } + + *newSock = _md_get_recycled_socket(sd->secret->af); + if (*newSock == INVALID_SOCKET) { + return -1; + } + + memset(&(me->md.overlapped.overlapped), 0, sizeof(OVERLAPPED)); + if (_native_threads_only) { + me->md.overlapped.overlapped.hEvent = me->md.thr_event; + } + + _PR_THREAD_LOCK(me); + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + _PR_THREAD_UNLOCK(me); + closesocket(*newSock); + return -1; + } + me->io_pending = PR_TRUE; + me->state = _PR_IO_WAIT; + _PR_THREAD_UNLOCK(me); + me->io_fd = sock; + + rv = AcceptEx((SOCKET)sock, + *newSock, + buf, + amount, + INET_ADDR_PADDED, + INET_ADDR_PADDED, + &bytes, + &(me->md.overlapped.overlapped)); + + if ( (rv == 0) && ((err = GetLastError()) != ERROR_IO_PENDING)) { + closesocket(*newSock); + _PR_THREAD_LOCK(me); + me->io_pending = PR_FALSE; + me->state = _PR_RUNNING; + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + _PR_THREAD_UNLOCK(me); + return -1; + } + _PR_THREAD_UNLOCK(me); + + _PR_MD_MAP_ACCEPTEX_ERROR(err); + return -1; + } + + if (_native_threads_only && rv) { + _native_thread_io_nowait(me, rv, bytes); + } else if (_NT_IO_WAIT(me, timeout) == PR_FAILURE) { + PR_ASSERT(0); + closesocket(*newSock); + return -1; + } + +retry: + if (me->io_suspended) { + PRInt32 err; + INT seconds; + INT bytes = sizeof(seconds); + + PR_ASSERT(timeout != PR_INTERVAL_NO_TIMEOUT); + + err = getsockopt(*newSock, + SOL_SOCKET, + SO_CONNECT_TIME, + (char *)&seconds, + (PINT)&bytes); + if ( err == NO_ERROR ) { + PRIntervalTime elapsed = PR_SecondsToInterval(seconds); + + if (seconds == 0xffffffff) { + isConnected = PR_FALSE; + } + else { + isConnected = PR_TRUE; + } + + if (!isConnected) { + if (madeCallback == PR_FALSE && callback) { + callback(callbackArg); + } + madeCallback = PR_TRUE; + me->state = _PR_IO_WAIT; + if (_NT_ResumeIO(me, timeout) == PR_FAILURE) { + closesocket(*newSock); + return -1; + } + goto retry; + } + + if (elapsed < timeout) { + /* Socket is connected but time not elapsed, RESUME IO */ + timeout -= elapsed; + me->state = _PR_IO_WAIT; + if (_NT_ResumeIO(me, timeout) == PR_FAILURE) { + closesocket(*newSock); + return -1; + } + goto retry; + } + } else { + /* What to do here? Assume socket not open?*/ + PR_ASSERT(0); + isConnected = PR_FALSE; + } + + rv = _NT_IO_ABORT(*newSock); + + PR_ASSERT(me->io_pending == PR_FALSE); + PR_ASSERT(me->io_suspended == PR_FALSE); + PR_ASSERT(me->md.thr_bound_cpu == NULL); + /* If the IO is still suspended, it means we didn't get any + * completion from NT_IO_WAIT. This is not disasterous, I hope, + * but it may mean we still have an IO outstanding... Try to + * recover by just allowing ourselves to continue. + */ + me->io_suspended = PR_FALSE; + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + } else { + PR_SetError(PR_IO_TIMEOUT_ERROR, 0); + } + me->state = _PR_RUNNING; + closesocket(*newSock); + return -1; + } + + PR_ASSERT(me->io_pending == PR_FALSE); + PR_ASSERT(me->io_suspended == PR_FALSE); + PR_ASSERT(me->md.thr_bound_cpu == NULL); + + if (me->md.blocked_io_status == 0) { + _PR_MD_MAP_ACCEPTEX_ERROR(me->md.blocked_io_error); + closesocket(*newSock); + return -1; + } + + if (!fast) { + _PR_MD_UPDATE_ACCEPT_CONTEXT((SOCKET)*newSock, (SOCKET)sock); + } + + /* IO is done */ + GetAcceptExSockaddrs( + buf, + amount, + INET_ADDR_PADDED, + INET_ADDR_PADDED, + (LPSOCKADDR *)&(Laddr), + &llen, + (LPSOCKADDR *)(raddr), + (unsigned int *)&rlen); + + return me->md.blocked_io_bytes; +} + +PRInt32 +_PR_MD_SENDFILE(PRFileDesc *sock, PRSendFileData *sfd, + PRInt32 flags, PRIntervalTime timeout) +{ + PRThread *me = _PR_MD_CURRENT_THREAD(); + PRInt32 tflags; + int rv, err; + + if (me->io_suspended) { + PR_SetError(PR_INVALID_STATE_ERROR, 0); + return -1; + } + + if (!sock->secret->md.io_model_committed) { + rv = _md_Associate((HANDLE)sock->secret->md.osfd); + PR_ASSERT(0 != rv); + sock->secret->md.io_model_committed = PR_TRUE; + } + if (!me->md.xmit_bufs) { + me->md.xmit_bufs = PR_NEW(TRANSMIT_FILE_BUFFERS); + if (!me->md.xmit_bufs) { + PR_SetError(PR_OUT_OF_MEMORY_ERROR, 0); + return -1; + } + } + me->md.xmit_bufs->Head = (void *)sfd->header; + me->md.xmit_bufs->HeadLength = sfd->hlen; + me->md.xmit_bufs->Tail = (void *)sfd->trailer; + me->md.xmit_bufs->TailLength = sfd->tlen; + + memset(&(me->md.overlapped.overlapped), 0, sizeof(OVERLAPPED)); + me->md.overlapped.overlapped.Offset = sfd->file_offset; + if (_native_threads_only) { + me->md.overlapped.overlapped.hEvent = me->md.thr_event; + } + + tflags = 0; + if (flags & PR_TRANSMITFILE_CLOSE_SOCKET) { + tflags = TF_DISCONNECT | TF_REUSE_SOCKET; + } + + _PR_THREAD_LOCK(me); + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + _PR_THREAD_UNLOCK(me); + return -1; + } + me->io_pending = PR_TRUE; + me->state = _PR_IO_WAIT; + _PR_THREAD_UNLOCK(me); + me->io_fd = sock->secret->md.osfd; + + rv = TransmitFile((SOCKET)sock->secret->md.osfd, + (HANDLE)sfd->fd->secret->md.osfd, + (DWORD)sfd->file_nbytes, + (DWORD)0, + (LPOVERLAPPED)&(me->md.overlapped.overlapped), + (TRANSMIT_FILE_BUFFERS *)me->md.xmit_bufs, + (DWORD)tflags); + if ( (rv == 0) && ((err = GetLastError()) != ERROR_IO_PENDING) ) { + _PR_THREAD_LOCK(me); + me->io_pending = PR_FALSE; + me->state = _PR_RUNNING; + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + _PR_THREAD_UNLOCK(me); + return -1; + } + _PR_THREAD_UNLOCK(me); + + _PR_MD_MAP_TRANSMITFILE_ERROR(err); + return -1; + } + + if (_NT_IO_WAIT(me, timeout) == PR_FAILURE) { + PR_ASSERT(0); + return -1; + } + + PR_ASSERT(me->io_pending == PR_FALSE || me->io_suspended == PR_TRUE); + + if (me->io_suspended) { + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + } else { + PR_SetError(PR_IO_TIMEOUT_ERROR, 0); + } + return -1; + } + + if (me->md.blocked_io_status == 0) { + _PR_MD_MAP_TRANSMITFILE_ERROR(me->md.blocked_io_error); + return -1; + } + + if (flags & PR_TRANSMITFILE_CLOSE_SOCKET) { + _md_put_recycled_socket(sock->secret->md.osfd, sock->secret->af); + } + + PR_ASSERT(me->io_pending == PR_FALSE); + + return me->md.blocked_io_bytes; +} + +PRInt32 +_PR_MD_RECV(PRFileDesc *fd, void *buf, PRInt32 amount, PRIntn flags, + PRIntervalTime timeout) +{ + PROsfd osfd = fd->secret->md.osfd; + PRThread *me = _PR_MD_CURRENT_THREAD(); + int bytes; + int rv, err; + + if (_NT_USE_NB_IO(fd)) { + if (!fd->secret->md.io_model_committed) { + rv = _md_MakeNonblock((HANDLE)osfd); + PR_ASSERT(0 != rv); + fd->secret->md.io_model_committed = PR_TRUE; + } + return _nt_nonblock_recv(fd, buf, amount, flags, timeout); + } + + if (me->io_suspended) { + PR_SetError(PR_INVALID_STATE_ERROR, 0); + return -1; + } + + if (!fd->secret->md.io_model_committed) { + rv = _md_Associate((HANDLE)osfd); + PR_ASSERT(0 != rv); + fd->secret->md.io_model_committed = PR_TRUE; + } + + memset(&(me->md.overlapped.overlapped), 0, sizeof(OVERLAPPED)); + if (_native_threads_only) { + me->md.overlapped.overlapped.hEvent = me->md.thr_event; + } + + _PR_THREAD_LOCK(me); + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + _PR_THREAD_UNLOCK(me); + return -1; + } + me->io_pending = PR_TRUE; + me->state = _PR_IO_WAIT; + _PR_THREAD_UNLOCK(me); + me->io_fd = osfd; + + rv = ReadFile((HANDLE)osfd, + buf, + amount, + &bytes, + &(me->md.overlapped.overlapped)); + if ( (rv == 0) && (GetLastError() != ERROR_IO_PENDING) ) { + _PR_THREAD_LOCK(me); + me->io_pending = PR_FALSE; + me->state = _PR_RUNNING; + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + _PR_THREAD_UNLOCK(me); + return -1; + } + _PR_THREAD_UNLOCK(me); + + if ((err = GetLastError()) == ERROR_HANDLE_EOF) { + return 0; + } + _PR_MD_MAP_READ_ERROR(err); + return -1; + } + + if (_native_threads_only && rv) { + _native_thread_io_nowait(me, rv, bytes); + } else if (_NT_IO_WAIT(me, timeout) == PR_FAILURE) { + PR_ASSERT(0); + return -1; + } + + PR_ASSERT(me->io_pending == PR_FALSE || me->io_suspended == PR_TRUE); + + if (me->io_suspended) { + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + } else { + PR_SetError(PR_IO_TIMEOUT_ERROR, 0); + } + return -1; + } + + if (me->md.blocked_io_status == 0) { + if (me->md.blocked_io_error == ERROR_HANDLE_EOF) { + return 0; + } + _PR_MD_MAP_READ_ERROR(me->md.blocked_io_error); + return -1; + } + + PR_ASSERT(me->io_pending == PR_FALSE); + + return me->md.blocked_io_bytes; +} + +PRInt32 +_PR_MD_SEND(PRFileDesc *fd, const void *buf, PRInt32 amount, PRIntn flags, + PRIntervalTime timeout) +{ + PROsfd osfd = fd->secret->md.osfd; + PRThread *me = _PR_MD_CURRENT_THREAD(); + int bytes; + int rv, err; + + if (_NT_USE_NB_IO(fd)) { + if (!fd->secret->md.io_model_committed) { + rv = _md_MakeNonblock((HANDLE)osfd); + PR_ASSERT(0 != rv); + fd->secret->md.io_model_committed = PR_TRUE; + } + return _nt_nonblock_send(fd, (char *)buf, amount, timeout); + } + + if (me->io_suspended) { + PR_SetError(PR_INVALID_STATE_ERROR, 0); + return -1; + } + + if (!fd->secret->md.io_model_committed) { + rv = _md_Associate((HANDLE)osfd); + PR_ASSERT(0 != rv); + fd->secret->md.io_model_committed = PR_TRUE; + } + + memset(&(me->md.overlapped.overlapped), 0, sizeof(OVERLAPPED)); + if (_native_threads_only) { + me->md.overlapped.overlapped.hEvent = me->md.thr_event; + } + + _PR_THREAD_LOCK(me); + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + _PR_THREAD_UNLOCK(me); + return -1; + } + me->io_pending = PR_TRUE; + me->state = _PR_IO_WAIT; + _PR_THREAD_UNLOCK(me); + me->io_fd = osfd; + + rv = WriteFile((HANDLE)osfd, + buf, + amount, + &bytes, + &(me->md.overlapped.overlapped)); + if ( (rv == 0) && ((err = GetLastError()) != ERROR_IO_PENDING) ) { + _PR_THREAD_LOCK(me); + me->io_pending = PR_FALSE; + me->state = _PR_RUNNING; + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + _PR_THREAD_UNLOCK(me); + return -1; + } + _PR_THREAD_UNLOCK(me); + + _PR_MD_MAP_WRITE_ERROR(err); + return -1; + } + + if (_native_threads_only && rv) { + _native_thread_io_nowait(me, rv, bytes); + } else if (_NT_IO_WAIT(me, timeout) == PR_FAILURE) { + PR_ASSERT(0); + return -1; + } + + PR_ASSERT(me->io_pending == PR_FALSE || me->io_suspended == PR_TRUE); + + if (me->io_suspended) { + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + } else { + PR_SetError(PR_IO_TIMEOUT_ERROR, 0); + } + return -1; + } + + if (me->md.blocked_io_status == 0) { + _PR_MD_MAP_WRITE_ERROR(me->md.blocked_io_error); + return -1; + } + + PR_ASSERT(me->io_pending == PR_FALSE); + + return me->md.blocked_io_bytes; +} + +PRInt32 +_PR_MD_SENDTO(PRFileDesc *fd, const void *buf, PRInt32 amount, PRIntn flags, + const PRNetAddr *addr, PRUint32 addrlen, PRIntervalTime timeout) +{ + PROsfd osfd = fd->secret->md.osfd; + PRInt32 rv; + + if (!fd->secret->md.io_model_committed) { + rv = _md_MakeNonblock((HANDLE)osfd); + PR_ASSERT(0 != rv); + fd->secret->md.io_model_committed = PR_TRUE; + } + if (_NT_USE_NB_IO(fd)) { + return _nt_nonblock_sendto(fd, buf, amount, (struct sockaddr *)addr, addrlen, timeout); + } + else { + return pt_SendTo(osfd, buf, amount, flags, addr, addrlen, timeout); + } +} + +PRInt32 +_PR_MD_RECVFROM(PRFileDesc *fd, void *buf, PRInt32 amount, PRIntn flags, + PRNetAddr *addr, PRUint32 *addrlen, PRIntervalTime timeout) +{ + PROsfd osfd = fd->secret->md.osfd; + PRInt32 rv; + + if (!fd->secret->md.io_model_committed) { + rv = _md_MakeNonblock((HANDLE)osfd); + PR_ASSERT(0 != rv); + fd->secret->md.io_model_committed = PR_TRUE; + } + if (_NT_USE_NB_IO(fd)) { + return _nt_nonblock_recvfrom(fd, buf, amount, (struct sockaddr *)addr, addrlen, timeout); + } + else { + return pt_RecvFrom(osfd, buf, amount, flags, addr, addrlen, timeout); + } +} + +/* XXXMB - for now this is a sockets call only */ +PRInt32 +_PR_MD_WRITEV(PRFileDesc *fd, const PRIOVec *iov, PRInt32 iov_size, PRIntervalTime timeout) +{ + PROsfd osfd = fd->secret->md.osfd; + int index; + int sent = 0; + int rv; + + if (_NT_USE_NB_IO(fd)) { + if (!fd->secret->md.io_model_committed) { + rv = _md_MakeNonblock((HANDLE)osfd); + PR_ASSERT(0 != rv); + fd->secret->md.io_model_committed = PR_TRUE; + } + return _nt_nonblock_writev(fd, iov, iov_size, timeout); + } + + for (index=0; index<iov_size; index++) { + rv = _PR_MD_SEND(fd, iov[index].iov_base, iov[index].iov_len, 0, + timeout); + if (rv > 0) { + sent += rv; + } + if ( rv != iov[index].iov_len ) { + if (sent <= 0) { + return -1; + } + return -1; + } + } + + return sent; +} + +PRInt32 +_PR_MD_LISTEN(PRFileDesc *fd, PRIntn backlog) +{ + PRInt32 rv; + + rv = listen(fd->secret->md.osfd, backlog); + if (rv < 0) { + _PR_MD_MAP_LISTEN_ERROR(WSAGetLastError()); + } + return(rv); +} + +PRInt32 +_PR_MD_SHUTDOWN(PRFileDesc *fd, PRIntn how) +{ + PRInt32 rv; + + rv = shutdown(fd->secret->md.osfd, how); + if (rv < 0) { + _PR_MD_MAP_SHUTDOWN_ERROR(WSAGetLastError()); + } + return(rv); +} + +PRStatus +_PR_MD_GETSOCKNAME(PRFileDesc *fd, PRNetAddr *addr, PRUint32 *len) +{ + PRInt32 rv; + + rv = getsockname((SOCKET)fd->secret->md.osfd, (struct sockaddr *)addr, len); + if (rv==0) { + return PR_SUCCESS; + } + else { + _PR_MD_MAP_GETSOCKNAME_ERROR(WSAGetLastError()); + return PR_FAILURE; + } +} + +PRStatus +_PR_MD_GETPEERNAME(PRFileDesc *fd, PRNetAddr *addr, PRUint32 *len) +{ + PRInt32 rv; + + /* + * NT has a bug that, when invoked on a socket accepted by + * AcceptEx(), getpeername() returns an all-zero peer address. + * To work around this bug, we store the peer's address (returned + * by AcceptEx()) with the socket fd and use the cached peer + * address if the socket is an accepted socket. + */ + + if (fd->secret->md.accepted_socket) { + INT seconds; + INT bytes = sizeof(seconds); + + /* + * Determine if the socket is connected. + */ + + rv = getsockopt(fd->secret->md.osfd, + SOL_SOCKET, + SO_CONNECT_TIME, + (char *) &seconds, + (PINT) &bytes); + if (rv == NO_ERROR) { + if (seconds == 0xffffffff) { + PR_SetError(PR_NOT_CONNECTED_ERROR, 0); + return PR_FAILURE; + } + *len = PR_NETADDR_SIZE(&fd->secret->md.peer_addr); + memcpy(addr, &fd->secret->md.peer_addr, *len); + return PR_SUCCESS; + } else { + _PR_MD_MAP_GETSOCKOPT_ERROR(WSAGetLastError()); + return PR_FAILURE; + } + } else { + rv = getpeername((SOCKET)fd->secret->md.osfd, + (struct sockaddr *) addr, len); + if (rv == 0) { + return PR_SUCCESS; + } else { + _PR_MD_MAP_GETPEERNAME_ERROR(WSAGetLastError()); + return PR_FAILURE; + } + } +} + +PRStatus +_PR_MD_GETSOCKOPT(PRFileDesc *fd, PRInt32 level, PRInt32 optname, char* optval, PRInt32* optlen) +{ + PRInt32 rv; + + rv = getsockopt((SOCKET)fd->secret->md.osfd, level, optname, optval, optlen); + if (rv==0) { + return PR_SUCCESS; + } + else { + _PR_MD_MAP_GETSOCKOPT_ERROR(WSAGetLastError()); + return PR_FAILURE; + } +} + +PRStatus +_PR_MD_SETSOCKOPT(PRFileDesc *fd, PRInt32 level, PRInt32 optname, const char* optval, PRInt32 optlen) +{ + PRInt32 rv; + + rv = setsockopt((SOCKET)fd->secret->md.osfd, level, optname, optval, optlen); + if (rv==0) { + return PR_SUCCESS; + } + else { + _PR_MD_MAP_SETSOCKOPT_ERROR(WSAGetLastError()); + return PR_FAILURE; + } +} + +/* --- FILE IO ----------------------------------------------------------- */ + +PROsfd +_PR_MD_OPEN(const char *name, PRIntn osflags, PRIntn mode) +{ + HANDLE file; + PRInt32 access = 0; + PRInt32 flags = 0; + PRInt32 flag6 = 0; + + if (osflags & PR_SYNC) { + flag6 = FILE_FLAG_WRITE_THROUGH; + } + + if (osflags & PR_RDONLY || osflags & PR_RDWR) { + access |= GENERIC_READ; + } + if (osflags & PR_WRONLY || osflags & PR_RDWR) { + access |= GENERIC_WRITE; + } + + if ( osflags & PR_CREATE_FILE && osflags & PR_EXCL ) { + flags = CREATE_NEW; + } + else if (osflags & PR_CREATE_FILE) { + flags = (0 != (osflags & PR_TRUNCATE)) ? CREATE_ALWAYS : OPEN_ALWAYS; + } + else if (osflags & PR_TRUNCATE) { + flags = TRUNCATE_EXISTING; + } + else { + flags = OPEN_EXISTING; + } + + + flag6 |= FILE_FLAG_OVERLAPPED; + + file = CreateFile(name, + access, + FILE_SHARE_READ|FILE_SHARE_WRITE, + NULL, + flags, + flag6, + NULL); + if (file == INVALID_HANDLE_VALUE) { + _PR_MD_MAP_OPEN_ERROR(GetLastError()); + return -1; + } + + if (osflags & PR_APPEND) { + if ( SetFilePointer(file, 0, 0, FILE_END) == 0xFFFFFFFF ) { + _PR_MD_MAP_LSEEK_ERROR(GetLastError()); + CloseHandle(file); + return -1; + } + } + + return (PROsfd)file; +} + +PROsfd +_PR_MD_OPEN_FILE(const char *name, PRIntn osflags, PRIntn mode) +{ + HANDLE file; + PRInt32 access = 0; + PRInt32 flags = 0; + PRInt32 flag6 = 0; + SECURITY_ATTRIBUTES sa; + LPSECURITY_ATTRIBUTES lpSA = NULL; + PSECURITY_DESCRIPTOR pSD = NULL; + PACL pACL = NULL; + + if (osflags & PR_SYNC) { + flag6 = FILE_FLAG_WRITE_THROUGH; + } + + if (osflags & PR_RDONLY || osflags & PR_RDWR) { + access |= GENERIC_READ; + } + if (osflags & PR_WRONLY || osflags & PR_RDWR) { + access |= GENERIC_WRITE; + } + + if ( osflags & PR_CREATE_FILE && osflags & PR_EXCL ) { + flags = CREATE_NEW; + } + else if (osflags & PR_CREATE_FILE) { + flags = (0 != (osflags & PR_TRUNCATE)) ? CREATE_ALWAYS : OPEN_ALWAYS; + } + else if (osflags & PR_TRUNCATE) { + flags = TRUNCATE_EXISTING; + } + else { + flags = OPEN_EXISTING; + } + + + flag6 |= FILE_FLAG_OVERLAPPED; + + if (osflags & PR_CREATE_FILE) { + if (_PR_NT_MakeSecurityDescriptorACL(mode, fileAccessTable, + &pSD, &pACL) == PR_SUCCESS) { + sa.nLength = sizeof(sa); + sa.lpSecurityDescriptor = pSD; + sa.bInheritHandle = FALSE; + lpSA = &sa; + } + } + file = CreateFile(name, + access, + FILE_SHARE_READ|FILE_SHARE_WRITE, + lpSA, + flags, + flag6, + NULL); + if (lpSA != NULL) { + _PR_NT_FreeSecurityDescriptorACL(pSD, pACL); + } + if (file == INVALID_HANDLE_VALUE) { + _PR_MD_MAP_OPEN_ERROR(GetLastError()); + return -1; + } + + if (osflags & PR_APPEND) { + if ( SetFilePointer(file, 0, 0, FILE_END) == 0xFFFFFFFF ) { + _PR_MD_MAP_LSEEK_ERROR(GetLastError()); + CloseHandle(file); + return -1; + } + } + + return (PROsfd)file; +} + +PRInt32 +_PR_MD_READ(PRFileDesc *fd, void *buf, PRInt32 len) +{ + PROsfd f = fd->secret->md.osfd; + PRUint32 bytes; + int rv, err; + LONG hiOffset = 0; + LONG loOffset; + LARGE_INTEGER offset; /* use for a normalized add of len to offset */ + + if (!fd->secret->md.sync_file_io) { + PRThread *me = _PR_MD_CURRENT_THREAD(); + + if (me->io_suspended) { + PR_SetError(PR_INVALID_STATE_ERROR, 0); + return -1; + } + + memset(&(me->md.overlapped.overlapped), 0, sizeof(OVERLAPPED)); + + me->md.overlapped.overlapped.Offset = SetFilePointer((HANDLE)f, 0, &me->md.overlapped.overlapped.OffsetHigh, FILE_CURRENT); + PR_ASSERT((me->md.overlapped.overlapped.Offset != 0xffffffff) || (GetLastError() == NO_ERROR)); + + if (fd->secret->inheritable == _PR_TRI_TRUE) { + rv = ReadFile((HANDLE)f, + (LPVOID)buf, + len, + &bytes, + &me->md.overlapped.overlapped); + if (rv != 0) { + loOffset = SetFilePointer((HANDLE)f, bytes, &hiOffset, FILE_CURRENT); + PR_ASSERT((loOffset != 0xffffffff) || (GetLastError() == NO_ERROR)); + return bytes; + } + err = GetLastError(); + if (err == ERROR_IO_PENDING) { + rv = GetOverlappedResult((HANDLE)f, + &me->md.overlapped.overlapped, &bytes, TRUE); + if (rv != 0) { + loOffset = SetFilePointer((HANDLE)f, bytes, &hiOffset, FILE_CURRENT); + PR_ASSERT((loOffset != 0xffffffff) || (GetLastError() == NO_ERROR)); + return bytes; + } + err = GetLastError(); + } + if (err == ERROR_HANDLE_EOF) { + return 0; + } else { + _PR_MD_MAP_READ_ERROR(err); + return -1; + } + } else { + if (!fd->secret->md.io_model_committed) { + rv = _md_Associate((HANDLE)f); + PR_ASSERT(rv != 0); + fd->secret->md.io_model_committed = PR_TRUE; + } + + if (_native_threads_only) { + me->md.overlapped.overlapped.hEvent = me->md.thr_event; + } + + _PR_THREAD_LOCK(me); + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + _PR_THREAD_UNLOCK(me); + return -1; + } + me->io_pending = PR_TRUE; + me->state = _PR_IO_WAIT; + _PR_THREAD_UNLOCK(me); + me->io_fd = f; + + rv = ReadFile((HANDLE)f, + (LPVOID)buf, + len, + &bytes, + &me->md.overlapped.overlapped); + if ( (rv == 0) && ((err = GetLastError()) != ERROR_IO_PENDING) ) { + _PR_THREAD_LOCK(me); + me->io_pending = PR_FALSE; + me->state = _PR_RUNNING; + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + _PR_THREAD_UNLOCK(me); + return -1; + } + _PR_THREAD_UNLOCK(me); + + if (err == ERROR_HANDLE_EOF) { + return 0; + } + _PR_MD_MAP_READ_ERROR(err); + return -1; + } + + if (_native_threads_only && rv) { + _native_thread_io_nowait(me, rv, bytes); + } else if (_NT_IO_WAIT(me, PR_INTERVAL_NO_TIMEOUT) == PR_FAILURE) { + PR_ASSERT(0); + return -1; + } + + PR_ASSERT(me->io_pending == PR_FALSE || me->io_suspended == PR_TRUE); + + if (me->io_suspended) { + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + } else { + PR_SetError(PR_IO_TIMEOUT_ERROR, 0); + } + return -1; + } + + if (me->md.blocked_io_status == 0) { + if (me->md.blocked_io_error == ERROR_HANDLE_EOF) { + return 0; + } + _PR_MD_MAP_READ_ERROR(me->md.blocked_io_error); + return -1; + } + + /* Apply the workaround from bug 70765 (see _PR_MD_WRITE) + * to the reading code, too. */ + + offset.LowPart = me->md.overlapped.overlapped.Offset; + offset.HighPart = me->md.overlapped.overlapped.OffsetHigh; + offset.QuadPart += me->md.blocked_io_bytes; + + SetFilePointer((HANDLE)f, offset.LowPart, &offset.HighPart, FILE_BEGIN); + + PR_ASSERT(me->io_pending == PR_FALSE); + + return me->md.blocked_io_bytes; + } + } else { + + rv = ReadFile((HANDLE)f, + (LPVOID)buf, + len, + &bytes, + NULL); + if (rv == 0) { + err = GetLastError(); + /* ERROR_HANDLE_EOF can only be returned by async io */ + PR_ASSERT(err != ERROR_HANDLE_EOF); + if (err == ERROR_BROKEN_PIPE) { + /* The write end of the pipe has been closed. */ + return 0; + } + _PR_MD_MAP_READ_ERROR(err); + return -1; + } + return bytes; + } +} + +PRInt32 +_PR_MD_WRITE(PRFileDesc *fd, const void *buf, PRInt32 len) +{ + PROsfd f = fd->secret->md.osfd; + PRInt32 bytes; + int rv, err; + LONG hiOffset = 0; + LONG loOffset; + LARGE_INTEGER offset; /* use for the calculation of the new offset */ + + if (!fd->secret->md.sync_file_io) { + PRThread *me = _PR_MD_CURRENT_THREAD(); + + if (me->io_suspended) { + PR_SetError(PR_INVALID_STATE_ERROR, 0); + return -1; + } + + memset(&(me->md.overlapped.overlapped), 0, sizeof(OVERLAPPED)); + + me->md.overlapped.overlapped.Offset = SetFilePointer((HANDLE)f, 0, &me->md.overlapped.overlapped.OffsetHigh, FILE_CURRENT); + PR_ASSERT((me->md.overlapped.overlapped.Offset != 0xffffffff) || (GetLastError() == NO_ERROR)); + + if (fd->secret->inheritable == _PR_TRI_TRUE) { + rv = WriteFile((HANDLE)f, + (LPVOID)buf, + len, + &bytes, + &me->md.overlapped.overlapped); + if (rv != 0) { + loOffset = SetFilePointer((HANDLE)f, bytes, &hiOffset, FILE_CURRENT); + PR_ASSERT((loOffset != 0xffffffff) || (GetLastError() == NO_ERROR)); + return bytes; + } + err = GetLastError(); + if (err == ERROR_IO_PENDING) { + rv = GetOverlappedResult((HANDLE)f, + &me->md.overlapped.overlapped, &bytes, TRUE); + if (rv != 0) { + loOffset = SetFilePointer((HANDLE)f, bytes, &hiOffset, FILE_CURRENT); + PR_ASSERT((loOffset != 0xffffffff) || (GetLastError() == NO_ERROR)); + return bytes; + } + err = GetLastError(); + } + _PR_MD_MAP_READ_ERROR(err); + return -1; + } else { + if (!fd->secret->md.io_model_committed) { + rv = _md_Associate((HANDLE)f); + PR_ASSERT(rv != 0); + fd->secret->md.io_model_committed = PR_TRUE; + } + if (_native_threads_only) { + me->md.overlapped.overlapped.hEvent = me->md.thr_event; + } + + _PR_THREAD_LOCK(me); + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + _PR_THREAD_UNLOCK(me); + return -1; + } + me->io_pending = PR_TRUE; + me->state = _PR_IO_WAIT; + _PR_THREAD_UNLOCK(me); + me->io_fd = f; + + rv = WriteFile((HANDLE)f, + buf, + len, + &bytes, + &(me->md.overlapped.overlapped)); + if ( (rv == 0) && ((err = GetLastError()) != ERROR_IO_PENDING) ) { + _PR_THREAD_LOCK(me); + me->io_pending = PR_FALSE; + me->state = _PR_RUNNING; + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + _PR_THREAD_UNLOCK(me); + return -1; + } + _PR_THREAD_UNLOCK(me); + + _PR_MD_MAP_WRITE_ERROR(err); + return -1; + } + + if (_native_threads_only && rv) { + _native_thread_io_nowait(me, rv, bytes); + } else if (_NT_IO_WAIT(me, PR_INTERVAL_NO_TIMEOUT) == PR_FAILURE) { + PR_ASSERT(0); + return -1; + } + + PR_ASSERT(me->io_pending == PR_FALSE || me->io_suspended == PR_TRUE); + + if (me->io_suspended) { + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + } else { + PR_SetError(PR_IO_TIMEOUT_ERROR, 0); + } + return -1; + } + + if (me->md.blocked_io_status == 0) { + _PR_MD_MAP_WRITE_ERROR(me->md.blocked_io_error); + return -1; + } + + /* + * Moving the file pointer by a relative offset (FILE_CURRENT) + * does not work with a file on a network drive exported by a + * Win2K system. We still don't know why. A workaround is to + * move the file pointer by an absolute offset (FILE_BEGIN). + * (Bugzilla bug 70765) + */ + offset.LowPart = me->md.overlapped.overlapped.Offset; + offset.HighPart = me->md.overlapped.overlapped.OffsetHigh; + offset.QuadPart += me->md.blocked_io_bytes; + + SetFilePointer((HANDLE)f, offset.LowPart, &offset.HighPart, FILE_BEGIN); + + PR_ASSERT(me->io_pending == PR_FALSE); + + return me->md.blocked_io_bytes; + } + } else { + rv = WriteFile((HANDLE)f, + buf, + len, + &bytes, + NULL); + if (rv == 0) { + _PR_MD_MAP_WRITE_ERROR(GetLastError()); + return -1; + } + return bytes; + } +} + +PRInt32 +_PR_MD_SOCKETAVAILABLE(PRFileDesc *fd) +{ + PRInt32 result; + + if (ioctlsocket(fd->secret->md.osfd, FIONREAD, &result) < 0) { + PR_SetError(PR_BAD_DESCRIPTOR_ERROR, WSAGetLastError()); + return -1; + } + return result; +} + +PRInt32 +_PR_MD_PIPEAVAILABLE(PRFileDesc *fd) +{ + if (NULL == fd) { + PR_SetError(PR_BAD_DESCRIPTOR_ERROR, 0); + } + else { + PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0); + } + return -1; +} + +PROffset32 +_PR_MD_LSEEK(PRFileDesc *fd, PROffset32 offset, PRSeekWhence whence) +{ + DWORD moveMethod; + PROffset32 rv; + + switch (whence) { + case PR_SEEK_SET: + moveMethod = FILE_BEGIN; + break; + case PR_SEEK_CUR: + moveMethod = FILE_CURRENT; + break; + case PR_SEEK_END: + moveMethod = FILE_END; + break; + default: + PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0); + return -1; + } + + rv = SetFilePointer((HANDLE)fd->secret->md.osfd, offset, NULL, moveMethod); + + /* + * If the lpDistanceToMoveHigh argument (third argument) is + * NULL, SetFilePointer returns 0xffffffff on failure. + */ + if (-1 == rv) { + _PR_MD_MAP_LSEEK_ERROR(GetLastError()); + } + return rv; +} + +PROffset64 +_PR_MD_LSEEK64(PRFileDesc *fd, PROffset64 offset, PRSeekWhence whence) +{ + DWORD moveMethod; + LARGE_INTEGER li; + DWORD err; + + switch (whence) { + case PR_SEEK_SET: + moveMethod = FILE_BEGIN; + break; + case PR_SEEK_CUR: + moveMethod = FILE_CURRENT; + break; + case PR_SEEK_END: + moveMethod = FILE_END; + break; + default: + PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0); + return -1; + } + + li.QuadPart = offset; + li.LowPart = SetFilePointer((HANDLE)fd->secret->md.osfd, + li.LowPart, &li.HighPart, moveMethod); + + if (0xffffffff == li.LowPart && (err = GetLastError()) != NO_ERROR) { + _PR_MD_MAP_LSEEK_ERROR(err); + li.QuadPart = -1; + } + return li.QuadPart; +} + +/* + * This is documented to succeed on read-only files, but Win32's + * FlushFileBuffers functions fails with "access denied" in such a + * case. So we only signal an error if the error is *not* "access + * denied". + */ +PRInt32 +_PR_MD_FSYNC(PRFileDesc *fd) +{ + /* + * From the documentation: + * + * On Windows NT, the function FlushFileBuffers fails if hFile + * is a handle to console output. That is because console + * output is not buffered. The function returns FALSE, and + * GetLastError returns ERROR_INVALID_HANDLE. + * + * On the other hand, on Win95, it returns without error. I cannot + * assume that 0, 1, and 2 are console, because if someone closes + * System.out and then opens a file, they might get file descriptor + * 1. An error on *that* version of 1 should be reported, whereas + * an error on System.out (which was the original 1) should be + * ignored. So I use isatty() to ensure that such an error was + * because of this, and if it was, I ignore the error. + */ + + BOOL ok = FlushFileBuffers((HANDLE)fd->secret->md.osfd); + + if (!ok) { + DWORD err = GetLastError(); + + if (err != ERROR_ACCESS_DENIED) { /* from winerror.h */ + _PR_MD_MAP_FSYNC_ERROR(err); + return -1; + } + } + return 0; +} + +PRInt32 +_PR_MD_CLOSE(PROsfd osfd, PRBool socket) +{ + PRInt32 rv; + PRThread *me = _PR_MD_CURRENT_THREAD(); + + if (socket) { + rv = closesocket((SOCKET)osfd); + if (rv < 0) { + _PR_MD_MAP_CLOSE_ERROR(WSAGetLastError()); + } + } else { + rv = CloseHandle((HANDLE)osfd)?0:-1; + if (rv < 0) { + _PR_MD_MAP_CLOSE_ERROR(GetLastError()); + } + } + + if (rv == 0 && me->io_suspended) { + if (me->io_fd == osfd) { + PRBool fWait; + + _PR_THREAD_LOCK(me); + me->state = _PR_IO_WAIT; + /* The IO could have completed on another thread just after + * calling closesocket while the io_suspended flag was true. + * So we now grab the lock to do a safe check on io_pending to + * see if we need to wait or not. + */ + fWait = me->io_pending; + me->io_suspended = PR_FALSE; + me->md.interrupt_disabled = PR_TRUE; + _PR_THREAD_UNLOCK(me); + + if (fWait) { + _NT_IO_WAIT(me, PR_INTERVAL_NO_TIMEOUT); + } + PR_ASSERT(me->io_suspended == PR_FALSE); + PR_ASSERT(me->io_pending == PR_FALSE); + /* + * I/O operation is no longer pending; the thread can now + * run on any cpu + */ + _PR_THREAD_LOCK(me); + me->md.interrupt_disabled = PR_FALSE; + me->md.thr_bound_cpu = NULL; + me->io_suspended = PR_FALSE; + me->io_pending = PR_FALSE; + me->state = _PR_RUNNING; + _PR_THREAD_UNLOCK(me); + } + } + return rv; +} + +PRStatus +_PR_MD_SET_FD_INHERITABLE(PRFileDesc *fd, PRBool inheritable) +{ + BOOL rv; + + if (fd->secret->md.io_model_committed) { + PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0); + return PR_FAILURE; + } + rv = SetHandleInformation( + (HANDLE)fd->secret->md.osfd, + HANDLE_FLAG_INHERIT, + inheritable ? HANDLE_FLAG_INHERIT : 0); + if (0 == rv) { + _PR_MD_MAP_DEFAULT_ERROR(GetLastError()); + return PR_FAILURE; + } + return PR_SUCCESS; +} + +void +_PR_MD_INIT_FD_INHERITABLE(PRFileDesc *fd, PRBool imported) +{ + if (imported) { + fd->secret->inheritable = _PR_TRI_UNKNOWN; + } else { + fd->secret->inheritable = _PR_TRI_FALSE; + } +} + +void +_PR_MD_QUERY_FD_INHERITABLE(PRFileDesc *fd) +{ + DWORD flags; + + PR_ASSERT(_PR_TRI_UNKNOWN == fd->secret->inheritable); + if (fd->secret->md.io_model_committed) { + return; + } + if (GetHandleInformation((HANDLE)fd->secret->md.osfd, &flags)) { + if (flags & HANDLE_FLAG_INHERIT) { + fd->secret->inheritable = _PR_TRI_TRUE; + } else { + fd->secret->inheritable = _PR_TRI_FALSE; + } + } +} + + +/* --- DIR IO ------------------------------------------------------------ */ +#define GetFileFromDIR(d) (d)->d_entry.cFileName +#define FileIsHidden(d) ((d)->d_entry.dwFileAttributes & FILE_ATTRIBUTE_HIDDEN) + +void FlipSlashes(char *cp, int len) +{ + while (--len >= 0) { + if (cp[0] == '/') { + cp[0] = PR_DIRECTORY_SEPARATOR; + } + cp = _mbsinc(cp); + } +} /* end FlipSlashes() */ + +/* +** +** Local implementations of standard Unix RTL functions which are not provided +** by the VC RTL. +** +*/ + +PRInt32 +_PR_MD_CLOSE_DIR(_MDDir *d) +{ + if ( d ) { + if (FindClose( d->d_hdl )) { + d->magic = (PRUint32)-1; + return 0; + } else { + _PR_MD_MAP_CLOSEDIR_ERROR(GetLastError()); + return -1; + } + } + PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0); + return -1; +} + + +PRStatus +_PR_MD_OPEN_DIR(_MDDir *d, const char *name) +{ + char filename[ MAX_PATH ]; + int len; + + len = strlen(name); + /* Need 5 bytes for \*.* and the trailing null byte. */ + if (len + 5 > MAX_PATH) { + PR_SetError(PR_NAME_TOO_LONG_ERROR, 0); + return PR_FAILURE; + } + strcpy(filename, name); + + /* + * If 'name' ends in a slash or backslash, do not append + * another backslash. + */ + if (IsPrevCharSlash(filename, filename + len)) { + len--; + } + strcpy(&filename[len], "\\*.*"); + FlipSlashes( filename, strlen(filename) ); + + d->d_hdl = FindFirstFile( filename, &(d->d_entry) ); + if ( d->d_hdl == INVALID_HANDLE_VALUE ) { + _PR_MD_MAP_OPENDIR_ERROR(GetLastError()); + return PR_FAILURE; + } + d->firstEntry = PR_TRUE; + d->magic = _MD_MAGIC_DIR; + return PR_SUCCESS; +} + +char * +_PR_MD_READ_DIR(_MDDir *d, PRIntn flags) +{ + PRInt32 err; + BOOL rv; + char *fileName; + + if ( d ) { + while (1) { + if (d->firstEntry) { + d->firstEntry = PR_FALSE; + rv = 1; + } else { + rv = FindNextFile(d->d_hdl, &(d->d_entry)); + } + if (rv == 0) { + break; + } + fileName = GetFileFromDIR(d); + if ( (flags & PR_SKIP_DOT) && + (fileName[0] == '.') && (fileName[1] == '\0')) { + continue; + } + if ( (flags & PR_SKIP_DOT_DOT) && + (fileName[0] == '.') && (fileName[1] == '.') && + (fileName[2] == '\0')) { + continue; + } + if ( (flags & PR_SKIP_HIDDEN) && FileIsHidden(d)) { + continue; + } + return fileName; + } + err = GetLastError(); + PR_ASSERT(NO_ERROR != err); + _PR_MD_MAP_READDIR_ERROR(err); + return NULL; + } + PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0); + return NULL; +} + +PRInt32 +_PR_MD_DELETE(const char *name) +{ + if (DeleteFile(name)) { + return 0; + } else { + _PR_MD_MAP_DELETE_ERROR(GetLastError()); + return -1; + } +} + +void +_PR_FileTimeToPRTime(const FILETIME *filetime, PRTime *prtm) +{ + PR_ASSERT(sizeof(FILETIME) == sizeof(PRTime)); + CopyMemory(prtm, filetime, sizeof(PRTime)); +#ifdef __GNUC__ + *prtm = (*prtm - _pr_filetime_offset) / 10LL; +#else + *prtm = (*prtm - _pr_filetime_offset) / 10i64; +#endif + +#ifdef DEBUG + /* Doublecheck our calculation. */ + { + SYSTEMTIME systime; + PRExplodedTime etm; + PRTime cmp; /* for comparison */ + BOOL rv; + + rv = FileTimeToSystemTime(filetime, &systime); + PR_ASSERT(0 != rv); + + /* + * PR_ImplodeTime ignores wday and yday. + */ + etm.tm_usec = systime.wMilliseconds * PR_USEC_PER_MSEC; + etm.tm_sec = systime.wSecond; + etm.tm_min = systime.wMinute; + etm.tm_hour = systime.wHour; + etm.tm_mday = systime.wDay; + etm.tm_month = systime.wMonth - 1; + etm.tm_year = systime.wYear; + /* + * It is not well-documented what time zone the FILETIME's + * are in. WIN32_FIND_DATA is documented to be in UTC (GMT). + * But BY_HANDLE_FILE_INFORMATION is unclear about this. + * By our best judgement, we assume that FILETIME is in UTC. + */ + etm.tm_params.tp_gmt_offset = 0; + etm.tm_params.tp_dst_offset = 0; + cmp = PR_ImplodeTime(&etm); + + /* + * SYSTEMTIME is in milliseconds precision, so we convert PRTime's + * microseconds to milliseconds before doing the comparison. + */ + PR_ASSERT((cmp / PR_USEC_PER_MSEC) == (*prtm / PR_USEC_PER_MSEC)); + } +#endif /* DEBUG */ +} + +PRInt32 +_PR_MD_STAT(const char *fn, struct stat *info) +{ + PRInt32 rv; + + rv = _stat(fn, (struct _stat *)info); + if (-1 == rv) { + /* + * Check for MSVC runtime library _stat() bug. + * (It's really a bug in FindFirstFile().) + * If a pathname ends in a backslash or slash, + * e.g., c:\temp\ or c:/temp/, _stat() will fail. + * Note: a pathname ending in a slash (e.g., c:/temp/) + * can be handled by _stat() on NT but not on Win95. + * + * We remove the backslash or slash at the end and + * try again. + */ + + int len = strlen(fn); + if (len > 0 && len <= _MAX_PATH + && IsPrevCharSlash(fn, fn + len)) { + char newfn[_MAX_PATH + 1]; + + strcpy(newfn, fn); + newfn[len - 1] = '\0'; + rv = _stat(newfn, (struct _stat *)info); + } + } + + if (-1 == rv) { + _PR_MD_MAP_STAT_ERROR(errno); + } + return rv; +} + +#define _PR_IS_SLASH(ch) ((ch) == '/' || (ch) == '\\') + +static PRBool +IsPrevCharSlash(const char *str, const char *current) +{ + const char *prev; + + if (str >= current) { + return PR_FALSE; + } + prev = _mbsdec(str, current); + return (prev == current - 1) && _PR_IS_SLASH(*prev); +} + +/* + * IsRootDirectory -- + * + * Return PR_TRUE if the pathname 'fn' is a valid root directory, + * else return PR_FALSE. The char buffer pointed to by 'fn' must + * be writable. During the execution of this function, the contents + * of the buffer pointed to by 'fn' may be modified, but on return + * the original contents will be restored. 'buflen' is the size of + * the buffer pointed to by 'fn'. + * + * Root directories come in three formats: + * 1. / or \, meaning the root directory of the current drive. + * 2. C:/ or C:\, where C is a drive letter. + * 3. \\<server name>\<share point name>\ or + * \\<server name>\<share point name>, meaning the root directory + * of a UNC (Universal Naming Convention) name. + */ + +static PRBool +IsRootDirectory(char *fn, size_t buflen) +{ + char *p; + PRBool slashAdded = PR_FALSE; + PRBool rv = PR_FALSE; + + if (_PR_IS_SLASH(fn[0]) && fn[1] == '\0') { + return PR_TRUE; + } + + if (isalpha(fn[0]) && fn[1] == ':' && _PR_IS_SLASH(fn[2]) + && fn[3] == '\0') { + rv = GetDriveType(fn) > 1 ? PR_TRUE : PR_FALSE; + return rv; + } + + /* The UNC root directory */ + + if (_PR_IS_SLASH(fn[0]) && _PR_IS_SLASH(fn[1])) { + /* The 'server' part should have at least one character. */ + p = &fn[2]; + if (*p == '\0' || _PR_IS_SLASH(*p)) { + return PR_FALSE; + } + + /* look for the next slash */ + do { + p = _mbsinc(p); + } while (*p != '\0' && !_PR_IS_SLASH(*p)); + if (*p == '\0') { + return PR_FALSE; + } + + /* The 'share' part should have at least one character. */ + p++; + if (*p == '\0' || _PR_IS_SLASH(*p)) { + return PR_FALSE; + } + + /* look for the final slash */ + do { + p = _mbsinc(p); + } while (*p != '\0' && !_PR_IS_SLASH(*p)); + if (_PR_IS_SLASH(*p) && p[1] != '\0') { + return PR_FALSE; + } + if (*p == '\0') { + /* + * GetDriveType() doesn't work correctly if the + * path is of the form \\server\share, so we add + * a final slash temporarily. + */ + if ((p + 1) < (fn + buflen)) { + *p++ = '\\'; + *p = '\0'; + slashAdded = PR_TRUE; + } else { + return PR_FALSE; /* name too long */ + } + } + rv = GetDriveType(fn) > 1 ? PR_TRUE : PR_FALSE; + /* restore the 'fn' buffer */ + if (slashAdded) { + *--p = '\0'; + } + } + return rv; +} + +PRInt32 +_PR_MD_GETFILEINFO64(const char *fn, PRFileInfo64 *info) +{ + WIN32_FILE_ATTRIBUTE_DATA findFileData; + + if (NULL == fn || '\0' == *fn) { + PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0); + return -1; + } + + if (!GetFileAttributesEx(fn, GetFileExInfoStandard, &findFileData)) { + _PR_MD_MAP_OPENDIR_ERROR(GetLastError()); + return -1; + } + + if (findFileData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) { + info->type = PR_FILE_DIRECTORY; + } else { + info->type = PR_FILE_FILE; + } + + info->size = findFileData.nFileSizeHigh; + info->size = (info->size << 32) + findFileData.nFileSizeLow; + + _PR_FileTimeToPRTime(&findFileData.ftLastWriteTime, &info->modifyTime); + + if (0 == findFileData.ftCreationTime.dwLowDateTime && + 0 == findFileData.ftCreationTime.dwHighDateTime) { + info->creationTime = info->modifyTime; + } else { + _PR_FileTimeToPRTime(&findFileData.ftCreationTime, + &info->creationTime); + } + + return 0; +} + +PRInt32 +_PR_MD_GETFILEINFO(const char *fn, PRFileInfo *info) +{ + PRFileInfo64 info64; + PRInt32 rv = _PR_MD_GETFILEINFO64(fn, &info64); + if (0 == rv) + { + info->type = info64.type; + info->size = (PRUint32) info64.size; + info->modifyTime = info64.modifyTime; + info->creationTime = info64.creationTime; + } + return rv; +} + +PRInt32 +_PR_MD_GETOPENFILEINFO64(const PRFileDesc *fd, PRFileInfo64 *info) +{ + int rv; + + BY_HANDLE_FILE_INFORMATION hinfo; + + rv = GetFileInformationByHandle((HANDLE)fd->secret->md.osfd, &hinfo); + if (rv == FALSE) { + _PR_MD_MAP_FSTAT_ERROR(GetLastError()); + return -1; + } + + if (hinfo.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) { + info->type = PR_FILE_DIRECTORY; + } + else { + info->type = PR_FILE_FILE; + } + + info->size = hinfo.nFileSizeHigh; + info->size = (info->size << 32) + hinfo.nFileSizeLow; + + _PR_FileTimeToPRTime(&hinfo.ftLastWriteTime, &(info->modifyTime) ); + _PR_FileTimeToPRTime(&hinfo.ftCreationTime, &(info->creationTime) ); + + return 0; +} + +PRInt32 +_PR_MD_GETOPENFILEINFO(const PRFileDesc *fd, PRFileInfo *info) +{ + int rv; + + BY_HANDLE_FILE_INFORMATION hinfo; + + rv = GetFileInformationByHandle((HANDLE)fd->secret->md.osfd, &hinfo); + if (rv == FALSE) { + _PR_MD_MAP_FSTAT_ERROR(GetLastError()); + return -1; + } + + if (hinfo.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) { + info->type = PR_FILE_DIRECTORY; + } + else { + info->type = PR_FILE_FILE; + } + + info->size = hinfo.nFileSizeLow; + + _PR_FileTimeToPRTime(&hinfo.ftLastWriteTime, &(info->modifyTime) ); + _PR_FileTimeToPRTime(&hinfo.ftCreationTime, &(info->creationTime) ); + + return 0; +} + +PRInt32 +_PR_MD_RENAME(const char *from, const char *to) +{ + /* Does this work with dot-relative pathnames? */ + if (MoveFile(from, to)) { + return 0; + } else { + _PR_MD_MAP_RENAME_ERROR(GetLastError()); + return -1; + } +} + +PRInt32 +_PR_MD_ACCESS(const char *name, PRAccessHow how) +{ + PRInt32 rv; + + switch (how) { + case PR_ACCESS_WRITE_OK: + rv = _access(name, 02); + break; + case PR_ACCESS_READ_OK: + rv = _access(name, 04); + break; + case PR_ACCESS_EXISTS: + rv = _access(name, 00); + break; + default: + PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0); + return -1; + } + if (rv < 0) { + _PR_MD_MAP_ACCESS_ERROR(errno); + } + return rv; +} + +PRInt32 +_PR_MD_MKDIR(const char *name, PRIntn mode) +{ + /* XXXMB - how to translate the "mode"??? */ + if (CreateDirectory(name, NULL)) { + return 0; + } else { + _PR_MD_MAP_MKDIR_ERROR(GetLastError()); + return -1; + } +} + +PRInt32 +_PR_MD_MAKE_DIR(const char *name, PRIntn mode) +{ + BOOL rv; + SECURITY_ATTRIBUTES sa; + LPSECURITY_ATTRIBUTES lpSA = NULL; + PSECURITY_DESCRIPTOR pSD = NULL; + PACL pACL = NULL; + + if (_PR_NT_MakeSecurityDescriptorACL(mode, dirAccessTable, + &pSD, &pACL) == PR_SUCCESS) { + sa.nLength = sizeof(sa); + sa.lpSecurityDescriptor = pSD; + sa.bInheritHandle = FALSE; + lpSA = &sa; + } + rv = CreateDirectory(name, lpSA); + if (lpSA != NULL) { + _PR_NT_FreeSecurityDescriptorACL(pSD, pACL); + } + if (rv) { + return 0; + } else { + _PR_MD_MAP_MKDIR_ERROR(GetLastError()); + return -1; + } +} + +PRInt32 +_PR_MD_RMDIR(const char *name) +{ + if (RemoveDirectory(name)) { + return 0; + } else { + _PR_MD_MAP_RMDIR_ERROR(GetLastError()); + return -1; + } +} + +PRStatus +_PR_MD_LOCKFILE(PROsfd f) +{ + PRInt32 rv, err; + PRThread *me = _PR_MD_CURRENT_THREAD(); + + if (me->io_suspended) { + PR_SetError(PR_INVALID_STATE_ERROR, 0); + return PR_FAILURE; + } + + memset(&(me->md.overlapped.overlapped), 0, sizeof(OVERLAPPED)); + + _PR_THREAD_LOCK(me); + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + _PR_THREAD_UNLOCK(me); + return -1; + } + me->io_pending = PR_TRUE; + me->state = _PR_IO_WAIT; + _PR_THREAD_UNLOCK(me); + + rv = LockFileEx((HANDLE)f, + LOCKFILE_EXCLUSIVE_LOCK, + 0, + 0x7fffffff, + 0, + &me->md.overlapped.overlapped); + + if (_native_threads_only) { + _PR_THREAD_LOCK(me); + me->io_pending = PR_FALSE; + me->state = _PR_RUNNING; + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + _PR_THREAD_UNLOCK(me); + return PR_FAILURE; + } + _PR_THREAD_UNLOCK(me); + + if (rv == FALSE) { + err = GetLastError(); + PR_ASSERT(err != ERROR_IO_PENDING); + _PR_MD_MAP_LOCKF_ERROR(err); + return PR_FAILURE; + } + return PR_SUCCESS; + } + + /* HACK AROUND NT BUG + * NT 3.51 has a bug. In NT 3.51, if LockFileEx returns true, you + * don't get any completion on the completion port. This is a bug. + * + * They fixed it on NT4.0 so that you do get a completion. + * + * If we pretend we won't get a completion, NSPR gets confused later + * when the unexpected completion arrives. If we assume we do get + * a completion, we hang on 3.51. Worse, Microsoft informs me that the + * behavior varies on 3.51 depending on if you are using a network + * file system or a local disk! + * + * Solution: For now, _nt_version_gets_lockfile_completion is set + * depending on whether or not this system is EITHER + * - running NT 4.0 + * - running NT 3.51 with a service pack greater than 5. + * + * In the meantime, this code may not work on network file systems. + * + */ + + if ( rv == FALSE && ((err = GetLastError()) != ERROR_IO_PENDING)) { + _PR_THREAD_LOCK(me); + me->io_pending = PR_FALSE; + me->state = _PR_RUNNING; + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + _PR_THREAD_UNLOCK(me); + return PR_FAILURE; + } + _PR_THREAD_UNLOCK(me); + + _PR_MD_MAP_LOCKF_ERROR(err); + return PR_FAILURE; + } +#ifdef _NEED_351_FILE_LOCKING_HACK + else if (rv) { + /* If this is NT 3.51 and the file is local, then we won't get a + * completion back from LockFile when it succeeded. + */ + if (_nt_version_gets_lockfile_completion == PR_FALSE) { + if ( IsFileLocal((HANDLE)f) == _PR_LOCAL_FILE) { + me->io_pending = PR_FALSE; + me->state = _PR_RUNNING; + return PR_SUCCESS; + } + } + } +#endif /* _NEED_351_FILE_LOCKING_HACK */ + + if (_NT_IO_WAIT(me, PR_INTERVAL_NO_TIMEOUT) == PR_FAILURE) { + _PR_THREAD_LOCK(me); + me->io_pending = PR_FALSE; + me->state = _PR_RUNNING; + _PR_THREAD_UNLOCK(me); + return PR_FAILURE; + } + + if (me->md.blocked_io_status == 0) { + _PR_MD_MAP_LOCKF_ERROR(me->md.blocked_io_error); + return PR_FAILURE; + } + + return PR_SUCCESS; +} + +PRStatus +_PR_MD_TLOCKFILE(PROsfd f) +{ + PRInt32 rv, err; + PRThread *me = _PR_MD_CURRENT_THREAD(); + + if (me->io_suspended) { + PR_SetError(PR_INVALID_STATE_ERROR, 0); + return PR_FAILURE; + } + + memset(&(me->md.overlapped.overlapped), 0, sizeof(OVERLAPPED)); + + _PR_THREAD_LOCK(me); + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + _PR_THREAD_UNLOCK(me); + return -1; + } + me->io_pending = PR_TRUE; + me->state = _PR_IO_WAIT; + _PR_THREAD_UNLOCK(me); + + rv = LockFileEx((HANDLE)f, + LOCKFILE_FAIL_IMMEDIATELY|LOCKFILE_EXCLUSIVE_LOCK, + 0, + 0x7fffffff, + 0, + &me->md.overlapped.overlapped); + if (_native_threads_only) { + _PR_THREAD_LOCK(me); + me->io_pending = PR_FALSE; + me->state = _PR_RUNNING; + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + _PR_THREAD_UNLOCK(me); + return PR_FAILURE; + } + _PR_THREAD_UNLOCK(me); + + if (rv == FALSE) { + err = GetLastError(); + PR_ASSERT(err != ERROR_IO_PENDING); + _PR_MD_MAP_LOCKF_ERROR(err); + return PR_FAILURE; + } + return PR_SUCCESS; + } + if ( rv == FALSE && ((err = GetLastError()) != ERROR_IO_PENDING)) { + _PR_THREAD_LOCK(me); + me->io_pending = PR_FALSE; + me->state = _PR_RUNNING; + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + _PR_THREAD_UNLOCK(me); + return PR_FAILURE; + } + _PR_THREAD_UNLOCK(me); + + _PR_MD_MAP_LOCKF_ERROR(err); + return PR_FAILURE; + } +#ifdef _NEED_351_FILE_LOCKING_HACK + else if (rv) { + /* If this is NT 3.51 and the file is local, then we won't get a + * completion back from LockFile when it succeeded. + */ + if (_nt_version_gets_lockfile_completion == PR_FALSE) { + if ( IsFileLocal((HANDLE)f) == _PR_LOCAL_FILE) { + _PR_THREAD_LOCK(me); + me->io_pending = PR_FALSE; + me->state = _PR_RUNNING; + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + _PR_THREAD_UNLOCK(me); + return PR_FAILURE; + } + _PR_THREAD_UNLOCK(me); + + return PR_SUCCESS; + } + } + } +#endif /* _NEED_351_FILE_LOCKING_HACK */ + + if (_NT_IO_WAIT(me, PR_INTERVAL_NO_TIMEOUT) == PR_FAILURE) { + _PR_THREAD_LOCK(me); + me->io_pending = PR_FALSE; + me->state = _PR_RUNNING; + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + _PR_THREAD_UNLOCK(me); + return PR_FAILURE; + } + _PR_THREAD_UNLOCK(me); + + return PR_FAILURE; + } + + if (me->md.blocked_io_status == 0) { + _PR_MD_MAP_LOCKF_ERROR(me->md.blocked_io_error); + return PR_FAILURE; + } + + return PR_SUCCESS; +} + + +PRStatus +_PR_MD_UNLOCKFILE(PROsfd f) +{ + PRInt32 rv; + PRThread *me = _PR_MD_CURRENT_THREAD(); + + if (me->io_suspended) { + PR_SetError(PR_INVALID_STATE_ERROR, 0); + return PR_FAILURE; + } + + memset(&(me->md.overlapped.overlapped), 0, sizeof(OVERLAPPED)); + + rv = UnlockFileEx((HANDLE)f, + 0, + 0x7fffffff, + 0, + &me->md.overlapped.overlapped); + + if (rv) { + return PR_SUCCESS; + } + else { + int err = GetLastError(); + _PR_MD_MAP_LOCKF_ERROR(err); + return PR_FAILURE; + } +} + +void +_PR_MD_MAKE_NONBLOCK(PRFileDesc *f) +{ + /* + * On NT, we either call _md_Associate() or _md_MakeNonblock(), + * depending on whether the socket is blocking or not. + * + * Once we associate a socket with the io completion port, + * there is no way to disassociate it from the io completion + * port. So we have to call _md_Associate/_md_MakeNonblock + * lazily. + */ +} + +#ifdef _NEED_351_FILE_LOCKING_HACK +/*************** +** +** Lockfile hacks +** +** The following code is a hack to work around a microsoft bug with lockfile. +** The problem is that on NT 3.51, if LockFileEx() succeeds, you never +** get a completion back for files that are on local disks. So, we need to +** know if a file is local or remote so we can tell if we should expect +** a completion. +** +** The only way to check if a file is local or remote based on the handle is +** to get the serial number for the volume it is mounted on and then to +** compare that with mounted drives. This code caches the volume numbers of +** fixed disks and does a relatively quick check. +** +** Locking: Since the only thing we ever do when multithreaded is a 32bit +** assignment, we probably don't need locking. It is included just +** case anyway. +** +** Limitations: Does not work on floppies because they are too slow +** Unknown if it will work on wierdo 3rd party file systems +** +**************** +*/ + +/* There can only be 26 drive letters on NT */ +#define _PR_MAX_DRIVES 26 + +_MDLock cachedVolumeLock; +DWORD dwCachedVolumeSerialNumbers[_PR_MAX_DRIVES] = {0}; +DWORD dwLastCachedDrive = 0; +DWORD dwRemoveableDrivesToCheck = 0; /* bitmask for removeable drives */ + +PRBool IsFileLocalInit() +{ + TCHAR lpBuffer[_PR_MAX_DRIVES*5]; + DWORD nBufferLength = _PR_MAX_DRIVES*5; + DWORD nBufferNeeded = GetLogicalDriveStrings(0, NULL); + DWORD dwIndex = 0; + DWORD dwDriveType; + DWORD dwVolumeSerialNumber; + DWORD dwDriveIndex = 0; + DWORD oldmode = (DWORD) -1; + + _MD_NEW_LOCK(&cachedVolumeLock); + + nBufferNeeded = GetLogicalDriveStrings(nBufferLength, lpBuffer); + if (nBufferNeeded == 0 || nBufferNeeded > nBufferLength) { + return PR_FALSE; + } + + // Calling GetVolumeInformation on a removeable drive where the + // disk is currently removed will cause a dialog box to the + // console. This is not good. + // Temporarily disable the SEM_FAILCRITICALERRORS to avoid the + // damn dialog. + + dwCachedVolumeSerialNumbers[dwDriveIndex] = 0; + oldmode = SetErrorMode(SEM_FAILCRITICALERRORS); + + // now loop through the logical drives + while(lpBuffer[dwIndex] != TEXT('\0')) + { + // skip the floppy drives. This is *SLOW* + if ((lpBuffer[dwIndex] == TEXT('A')) || (lpBuffer[dwIndex] == TEXT('B'))) + /* Skip over floppies */; + else + { + dwDriveIndex = (lpBuffer[dwIndex] - TEXT('A')); + + dwDriveType = GetDriveType(&lpBuffer[dwIndex]); + + switch(dwDriveType) + { + // Ignore these drive types + case 0: + case 1: + case DRIVE_REMOTE: + default: // If the drive type is unknown, ignore it. + break; + + // Removable media drives can have different serial numbers + // at different times, so cache the current serial number + // but keep track of them so they can be rechecked if necessary. + case DRIVE_REMOVABLE: + + // CDROM is a removable media + case DRIVE_CDROM: + + // no idea if ramdisks can change serial numbers or not + // but it doesn't hurt to treat them as removable. + + case DRIVE_RAMDISK: + + + // Here is where we keep track of removable drives. + dwRemoveableDrivesToCheck |= 1 << dwDriveIndex; + + // removable drives fall through to fixed drives and get cached. + + case DRIVE_FIXED: + + // cache volume serial numbers. + if (GetVolumeInformation( + &lpBuffer[dwIndex], + NULL, 0, + &dwVolumeSerialNumber, + NULL, NULL, NULL, 0) + ) + { + if (dwLastCachedDrive < dwDriveIndex) { + dwLastCachedDrive = dwDriveIndex; + } + dwCachedVolumeSerialNumbers[dwDriveIndex] = dwVolumeSerialNumber; + } + + break; + } + } + + dwIndex += lstrlen(&lpBuffer[dwIndex]) +1; + } + + if (oldmode != (DWORD) -1) { + SetErrorMode(oldmode); + oldmode = (DWORD) -1; + } + + return PR_TRUE; +} + +PRInt32 IsFileLocal(HANDLE hFile) +{ + DWORD dwIndex = 0, dwMask; + BY_HANDLE_FILE_INFORMATION Info; + TCHAR szDrive[4] = TEXT("C:\\"); + DWORD dwVolumeSerialNumber; + DWORD oldmode = (DWORD) -1; + int rv = _PR_REMOTE_FILE; + + if (!GetFileInformationByHandle(hFile, &Info)) { + return -1; + } + + // look to see if the volume serial number has been cached. + _MD_LOCK(&cachedVolumeLock); + while(dwIndex <= dwLastCachedDrive) + if (dwCachedVolumeSerialNumbers[dwIndex++] == Info.dwVolumeSerialNumber) + { + _MD_UNLOCK(&cachedVolumeLock); + return _PR_LOCAL_FILE; + } + _MD_UNLOCK(&cachedVolumeLock); + + // volume serial number not found in the cache. Check removable files. + // removable drives are noted as a bitmask. If the bit associated with + // a specific drive is set, then we should query its volume serial number + // as its possible it has changed. + dwMask = dwRemoveableDrivesToCheck; + dwIndex = 0; + + while(dwMask) + { + while(!(dwMask & 1)) + { + dwIndex++; + dwMask = dwMask >> 1; + } + + szDrive[0] = TEXT('A')+ (TCHAR) dwIndex; + + // Calling GetVolumeInformation on a removeable drive where the + // disk is currently removed will cause a dialog box to the + // console. This is not good. + // Temporarily disable the SEM_FAILCRITICALERRORS to avoid the + // dialog. + + oldmode = SetErrorMode(SEM_FAILCRITICALERRORS); + + if (GetVolumeInformation( + szDrive, + NULL, 0, + &dwVolumeSerialNumber, + NULL, NULL, NULL, 0) + ) + { + if (dwVolumeSerialNumber == Info.dwVolumeSerialNumber) + { + _MD_LOCK(&cachedVolumeLock); + if (dwLastCachedDrive < dwIndex) { + dwLastCachedDrive = dwIndex; + } + dwCachedVolumeSerialNumbers[dwIndex] = dwVolumeSerialNumber; + _MD_UNLOCK(&cachedVolumeLock); + rv = _PR_LOCAL_FILE; + } + } + if (oldmode != (DWORD) -1) { + SetErrorMode(oldmode); + oldmode = (DWORD) -1; + } + + if (rv == _PR_LOCAL_FILE) { + return _PR_LOCAL_FILE; + } + + dwIndex++; + dwMask = dwMask >> 1; + } + + return _PR_REMOTE_FILE; +} +#endif /* _NEED_351_FILE_LOCKING_HACK */ + +PR_IMPLEMENT(PRStatus) PR_NT_CancelIo(PRFileDesc *fd) +{ + PRThread *me = _PR_MD_CURRENT_THREAD(); + PRBool fWait; + PRFileDesc *bottom; + + bottom = PR_GetIdentitiesLayer(fd, PR_NSPR_IO_LAYER); + if (!me->io_suspended || (NULL == bottom) || + (me->io_fd != bottom->secret->md.osfd)) { + PR_SetError(PR_INVALID_STATE_ERROR, 0); + return PR_FAILURE; + } + /* + * The CancelIO operation has to be issued by the same NT thread that + * issued the I/O operation + */ + PR_ASSERT(_PR_IS_NATIVE_THREAD(me) || (me->cpu == me->md.thr_bound_cpu)); + if (me->io_pending) { + if (!CancelIo((HANDLE)bottom->secret->md.osfd)) { + PR_SetError(PR_INVALID_STATE_ERROR, GetLastError()); + return PR_FAILURE; + } + } + _PR_THREAD_LOCK(me); + fWait = me->io_pending; + me->io_suspended = PR_FALSE; + me->state = _PR_IO_WAIT; + me->md.interrupt_disabled = PR_TRUE; + _PR_THREAD_UNLOCK(me); + if (fWait) { + _NT_IO_WAIT(me, PR_INTERVAL_NO_TIMEOUT); + } + PR_ASSERT(me->io_suspended == PR_FALSE); + PR_ASSERT(me->io_pending == PR_FALSE); + + _PR_THREAD_LOCK(me); + me->md.interrupt_disabled = PR_FALSE; + me->md.thr_bound_cpu = NULL; + me->io_suspended = PR_FALSE; + me->io_pending = PR_FALSE; + me->state = _PR_RUNNING; + _PR_THREAD_UNLOCK(me); + return PR_SUCCESS; +} + +static PROsfd _nt_nonblock_accept(PRFileDesc *fd, struct sockaddr *addr, int *addrlen, PRIntervalTime timeout) +{ + PROsfd osfd = fd->secret->md.osfd; + SOCKET sock; + PRInt32 rv, err; + fd_set rd; + struct timeval tv, *tvp; + + FD_ZERO(&rd); + FD_SET((SOCKET)osfd, &rd); + if (timeout == PR_INTERVAL_NO_TIMEOUT) { + while ((sock = accept(osfd, addr, addrlen)) == -1) { + if (((err = WSAGetLastError()) == WSAEWOULDBLOCK) + && (!fd->secret->nonblocking)) { + if ((rv = _PR_NTFiberSafeSelect(0, &rd, NULL, NULL, + NULL)) == -1) { + _PR_MD_MAP_SELECT_ERROR(WSAGetLastError()); + break; + } + } else { + _PR_MD_MAP_ACCEPT_ERROR(err); + break; + } + } + } else if (timeout == PR_INTERVAL_NO_WAIT) { + if ((sock = accept(osfd, addr, addrlen)) == -1) { + if (((err = WSAGetLastError()) == WSAEWOULDBLOCK) + && (!fd->secret->nonblocking)) { + PR_SetError(PR_IO_TIMEOUT_ERROR, 0); + } else { + _PR_MD_MAP_ACCEPT_ERROR(err); + } + } + } else { +retry: + if ((sock = accept(osfd, addr, addrlen)) == -1) { + if (((err = WSAGetLastError()) == WSAEWOULDBLOCK) + && (!fd->secret->nonblocking)) { + tv.tv_sec = PR_IntervalToSeconds(timeout); + tv.tv_usec = PR_IntervalToMicroseconds( + timeout - PR_SecondsToInterval(tv.tv_sec)); + tvp = &tv; + + rv = _PR_NTFiberSafeSelect(0, &rd, NULL, NULL, tvp); + if (rv > 0) { + goto retry; + } else if (rv == 0) { + PR_SetError(PR_IO_TIMEOUT_ERROR, 0); + } else { + _PR_MD_MAP_SELECT_ERROR(WSAGetLastError()); + } + } else { + _PR_MD_MAP_ACCEPT_ERROR(err); + } + } + } + return (PROsfd)sock; +} + +static PRInt32 _nt_nonblock_connect(PRFileDesc *fd, struct sockaddr *addr, int addrlen, PRIntervalTime timeout) +{ + PROsfd osfd = fd->secret->md.osfd; + PRInt32 rv; + int err; + fd_set wr, ex; + struct timeval tv, *tvp; + int len; + + if ((rv = connect(osfd, addr, addrlen)) == -1) { + if ((err = WSAGetLastError()) == WSAEWOULDBLOCK) { + if ( timeout == PR_INTERVAL_NO_TIMEOUT ) { + tvp = NULL; + } else { + tv.tv_sec = PR_IntervalToSeconds(timeout); + tv.tv_usec = PR_IntervalToMicroseconds( + timeout - PR_SecondsToInterval(tv.tv_sec)); + tvp = &tv; + } + FD_ZERO(&wr); + FD_ZERO(&ex); + FD_SET((SOCKET)osfd, &wr); + FD_SET((SOCKET)osfd, &ex); + if ((rv = _PR_NTFiberSafeSelect(0, NULL, &wr, &ex, + tvp)) == -1) { + _PR_MD_MAP_SELECT_ERROR(WSAGetLastError()); + return rv; + } + if (rv == 0) { + PR_SetError(PR_IO_TIMEOUT_ERROR, 0); + return -1; + } + /* Call Sleep(0) to work around a Winsock timeing bug. */ + Sleep(0); + if (FD_ISSET((SOCKET)osfd, &ex)) { + len = sizeof(err); + if (getsockopt(osfd, SOL_SOCKET, SO_ERROR, + (char *) &err, &len) == SOCKET_ERROR) { + _PR_MD_MAP_GETSOCKOPT_ERROR(WSAGetLastError()); + return -1; + } + _PR_MD_MAP_CONNECT_ERROR(err); + return -1; + } + PR_ASSERT(FD_ISSET((SOCKET)osfd, &wr)); + rv = 0; + } else { + _PR_MD_MAP_CONNECT_ERROR(err); + } + } + return rv; +} + +static PRInt32 _nt_nonblock_recv(PRFileDesc *fd, char *buf, int len, int flags, PRIntervalTime timeout) +{ + PROsfd osfd = fd->secret->md.osfd; + PRInt32 rv, err; + struct timeval tv, *tvp; + fd_set rd; + int osflags; + + if (0 == flags) { + osflags = 0; + } else { + PR_ASSERT(PR_MSG_PEEK == flags); + osflags = MSG_PEEK; + } + while ((rv = recv(osfd,buf,len,osflags)) == -1) { + if (((err = WSAGetLastError()) == WSAEWOULDBLOCK) + && (!fd->secret->nonblocking)) { + FD_ZERO(&rd); + FD_SET((SOCKET)osfd, &rd); + if (timeout == PR_INTERVAL_NO_TIMEOUT) { + tvp = NULL; + } else { + tv.tv_sec = PR_IntervalToSeconds(timeout); + tv.tv_usec = PR_IntervalToMicroseconds( + timeout - PR_SecondsToInterval(tv.tv_sec)); + tvp = &tv; + } + if ((rv = _PR_NTFiberSafeSelect(0, &rd, NULL, NULL, + tvp)) == -1) { + _PR_MD_MAP_SELECT_ERROR(WSAGetLastError()); + break; + } else if (rv == 0) { + PR_SetError(PR_IO_TIMEOUT_ERROR, 0); + rv = -1; + break; + } + } else { + _PR_MD_MAP_RECV_ERROR(err); + break; + } + } + return(rv); +} + +static PRInt32 _nt_nonblock_send(PRFileDesc *fd, char *buf, int len, PRIntervalTime timeout) +{ + PROsfd osfd = fd->secret->md.osfd; + PRInt32 rv, err; + struct timeval tv, *tvp; + fd_set wd; + PRInt32 bytesSent = 0; + + while(bytesSent < len) { + while ((rv = send(osfd,buf,len,0)) == -1) { + if (((err = WSAGetLastError()) == WSAEWOULDBLOCK) + && (!fd->secret->nonblocking)) { + if ( timeout == PR_INTERVAL_NO_TIMEOUT ) { + tvp = NULL; + } else { + tv.tv_sec = PR_IntervalToSeconds(timeout); + tv.tv_usec = PR_IntervalToMicroseconds( + timeout - PR_SecondsToInterval(tv.tv_sec)); + tvp = &tv; + } + FD_ZERO(&wd); + FD_SET((SOCKET)osfd, &wd); + if ((rv = _PR_NTFiberSafeSelect(0, NULL, &wd, NULL, + tvp)) == -1) { + _PR_MD_MAP_SELECT_ERROR(WSAGetLastError()); + return -1; + } + if (rv == 0) { + PR_SetError(PR_IO_TIMEOUT_ERROR, 0); + return -1; + } + } else { + _PR_MD_MAP_SEND_ERROR(err); + return -1; + } + } + bytesSent += rv; + if (fd->secret->nonblocking) { + break; + } + if (bytesSent < len) { + if ( timeout == PR_INTERVAL_NO_TIMEOUT ) { + tvp = NULL; + } else { + tv.tv_sec = PR_IntervalToSeconds(timeout); + tv.tv_usec = PR_IntervalToMicroseconds( + timeout - PR_SecondsToInterval(tv.tv_sec)); + tvp = &tv; + } + FD_ZERO(&wd); + FD_SET((SOCKET)osfd, &wd); + if ((rv = _PR_NTFiberSafeSelect(0, NULL, &wd, NULL, + tvp)) == -1) { + _PR_MD_MAP_SELECT_ERROR(WSAGetLastError()); + return -1; + } + if (rv == 0) { + PR_SetError(PR_IO_TIMEOUT_ERROR, 0); + return -1; + } + } + } + return bytesSent; +} + +static PRInt32 _nt_nonblock_writev(PRFileDesc *fd, const PRIOVec *iov, int size, PRIntervalTime timeout) +{ + int index; + int sent = 0; + int rv; + + for (index=0; index<size; index++) { + rv = _nt_nonblock_send(fd, iov[index].iov_base, iov[index].iov_len, timeout); + if (rv > 0) { + sent += rv; + } + if ( rv != iov[index].iov_len ) { + if (rv < 0) { + if (fd->secret->nonblocking + && (PR_GetError() == PR_WOULD_BLOCK_ERROR) + && (sent > 0)) { + return sent; + } else { + return -1; + } + } + /* Only a nonblocking socket can have partial sends */ + PR_ASSERT(fd->secret->nonblocking); + return sent; + } + } + + return sent; +} + +static PRInt32 _nt_nonblock_sendto( + PRFileDesc *fd, const char *buf, int len, + const struct sockaddr *addr, int addrlen, PRIntervalTime timeout) +{ + PROsfd osfd = fd->secret->md.osfd; + PRInt32 rv, err; + struct timeval tv, *tvp; + fd_set wd; + PRInt32 bytesSent = 0; + + while(bytesSent < len) { + while ((rv = sendto(osfd,buf,len,0, addr, addrlen)) == -1) { + if (((err = WSAGetLastError()) == WSAEWOULDBLOCK) + && (!fd->secret->nonblocking)) { + if ( timeout == PR_INTERVAL_NO_TIMEOUT ) { + tvp = NULL; + } else { + tv.tv_sec = PR_IntervalToSeconds(timeout); + tv.tv_usec = PR_IntervalToMicroseconds( + timeout - PR_SecondsToInterval(tv.tv_sec)); + tvp = &tv; + } + FD_ZERO(&wd); + FD_SET((SOCKET)osfd, &wd); + if ((rv = _PR_NTFiberSafeSelect(0, NULL, &wd, NULL, + tvp)) == -1) { + _PR_MD_MAP_SELECT_ERROR(WSAGetLastError()); + return -1; + } + if (rv == 0) { + PR_SetError(PR_IO_TIMEOUT_ERROR, 0); + return -1; + } + } else { + _PR_MD_MAP_SENDTO_ERROR(err); + return -1; + } + } + bytesSent += rv; + if (fd->secret->nonblocking) { + break; + } + if (bytesSent < len) { + if ( timeout == PR_INTERVAL_NO_TIMEOUT ) { + tvp = NULL; + } else { + tv.tv_sec = PR_IntervalToSeconds(timeout); + tv.tv_usec = PR_IntervalToMicroseconds( + timeout - PR_SecondsToInterval(tv.tv_sec)); + tvp = &tv; + } + FD_ZERO(&wd); + FD_SET((SOCKET)osfd, &wd); + if ((rv = _PR_NTFiberSafeSelect(0, NULL, &wd, NULL, + tvp)) == -1) { + _PR_MD_MAP_SELECT_ERROR(WSAGetLastError()); + return -1; + } + if (rv == 0) { + PR_SetError(PR_IO_TIMEOUT_ERROR, 0); + return -1; + } + } + } + return bytesSent; +} + +static PRInt32 _nt_nonblock_recvfrom(PRFileDesc *fd, char *buf, int len, struct sockaddr *addr, int *addrlen, PRIntervalTime timeout) +{ + PROsfd osfd = fd->secret->md.osfd; + PRInt32 rv, err; + struct timeval tv, *tvp; + fd_set rd; + + while ((rv = recvfrom(osfd,buf,len,0,addr, addrlen)) == -1) { + if (((err = WSAGetLastError()) == WSAEWOULDBLOCK) + && (!fd->secret->nonblocking)) { + if (timeout == PR_INTERVAL_NO_TIMEOUT) { + tvp = NULL; + } else { + tv.tv_sec = PR_IntervalToSeconds(timeout); + tv.tv_usec = PR_IntervalToMicroseconds( + timeout - PR_SecondsToInterval(tv.tv_sec)); + tvp = &tv; + } + FD_ZERO(&rd); + FD_SET((SOCKET)osfd, &rd); + if ((rv = _PR_NTFiberSafeSelect(0, &rd, NULL, NULL, + tvp)) == -1) { + _PR_MD_MAP_SELECT_ERROR(WSAGetLastError()); + break; + } else if (rv == 0) { + PR_SetError(PR_IO_TIMEOUT_ERROR, 0); + rv = -1; + break; + } + } else { + _PR_MD_MAP_RECVFROM_ERROR(err); + break; + } + } + return(rv); +} + +/* + * UDP support: the continuation thread functions and recvfrom and sendto. + */ + +static void pt_InsertTimedInternal(pt_Continuation *op) +{ + PRInt32 delta = 0; + pt_Continuation *t_op = NULL; + PRIntervalTime now = PR_IntervalNow(), op_tmo, qd_tmo; + + /* + * If this element operation isn't timed, it gets queued at the + * end of the list (just after pt_tq.tail) and we're + * finishd early. + */ + if (PR_INTERVAL_NO_TIMEOUT == op->timeout) + { + t_op = pt_tq.tail; /* put it at the end */ + goto done; + } + + /* + * The rest of this routine actaully deals with timed ops. + */ + + if (NULL != pt_tq.op) + { + /* + * To find where in the list to put the new operation, form + * the absolute time the operations in question will expire. + * + * The new operation ('op') will expire at now() + op->timeout. + * + * The operation that will time out furthest in the future will + * do so at pt_tq.epoch + pt_tq.op->timeout. + * + * Subsequently earlier timeouts are computed based on the latter + * knowledge by subracting the timeout deltas that are stored in + * the operation list. There are operation[n]->timeout ticks + * between the expiration of operation[n-1] and operation[n].e e + * + * Therefore, the operation[n-1] will expire operation[n]->timeout + * ticks prior to operation[n]. + * + * This should be easy! + */ + t_op = pt_tq.op; /* running pointer to queued op */ + op_tmo = now + op->timeout; /* that's in absolute ticks */ + qd_tmo = pt_tq.epoch + t_op->timeout; /* likewise */ + + do + { + /* + * If 'op' expires later than t_op, then insert 'op' just + * ahead of t_op. Otherwise, compute when operation[n-1] + * expires and try again. + * + * The actual different between the expiriation of 'op' + * and the current operation what becomes the new operaton's + * timeout interval. That interval is also subtracted from + * the interval of the operation immediately following where + * we stick 'op' (unless the next one isn't timed). The new + * timeout assigned to 'op' takes into account the values of + * now() and when the previous intervals were compured. + */ + delta = op_tmo - qd_tmo; + if (delta >= 0) + { + op->timeout += (now - pt_tq.epoch); + goto done; + } + + qd_tmo -= t_op->timeout; /* previous operaton expiration */ + t_op = t_op->prev; /* point to previous operation */ + if (NULL != t_op) { + qd_tmo += t_op->timeout; + } + } while (NULL != t_op); + + /* + * If we got here we backed off the head of the list. That means that + * this timed entry has to go at the head of the list. This is just + * about like having an empty timer list. + */ + delta = op->timeout; /* $$$ is this right? */ + } + +done: + + /* + * Insert 'op' into the queue just after t_op or if t_op is null, + * at the head of the list. + * + * If t_op is NULL, the list is currently empty and this is pretty + * easy. + */ + if (NULL == t_op) + { + op->prev = NULL; + op->next = pt_tq.head; + pt_tq.head = op; + if (NULL == pt_tq.tail) { + pt_tq.tail = op; + } + else { + op->next->prev = op; + } + } + else + { + op->prev = t_op; + op->next = t_op->next; + if (NULL != op->prev) { + op->prev->next = op; + } + if (NULL != op->next) { + op->next->prev = op; + } + if (t_op == pt_tq.tail) { + pt_tq.tail = op; + } + } + + /* + * Are we adjusting our epoch, etc? Are we replacing + * what was previously the element due to expire furthest + * out in the future? Is this even a timed operation? + */ + if (PR_INTERVAL_NO_TIMEOUT != op->timeout) + { + if ((NULL == pt_tq.op) /* we're the one and only */ + || (t_op == pt_tq.op)) /* we're replacing */ + { + pt_tq.op = op; + pt_tq.epoch = now; + } + } + + pt_tq.op_count += 1; + +} /* pt_InsertTimedInternal */ + +/* + * function: pt_FinishTimed + * + * Takes the finished operation out of the timed queue. It + * notifies the initiating thread that the opertions is + * complete and returns to the caller the value of the next + * operation in the list (or NULL). + */ +static pt_Continuation *pt_FinishTimedInternal(pt_Continuation *op) +{ + pt_Continuation *next; + + /* remove this one from the list */ + if (NULL == op->prev) { + pt_tq.head = op->next; + } + else { + op->prev->next = op->next; + } + if (NULL == op->next) { + pt_tq.tail = op->prev; + } + else { + op->next->prev = op->prev; + } + + /* did we happen to hit the timed op? */ + if (op == pt_tq.op) { + pt_tq.op = op->prev; + } + + next = op->next; + op->next = op->prev = NULL; + op->status = pt_continuation_done; + + pt_tq.op_count -= 1; +#if defined(DEBUG) + pt_debug.continuationsServed += 1; +#endif + PR_NotifyCondVar(op->complete); + + return next; +} /* pt_FinishTimedInternal */ + +static void ContinuationThread(void *arg) +{ + /* initialization */ + fd_set readSet, writeSet, exceptSet; + struct timeval tv; + SOCKET *pollingList = 0; /* list built for polling */ + PRIntn pollingListUsed; /* # entries used in the list */ + PRIntn pollingListNeeded; /* # entries needed this time */ + PRIntn pollingSlotsAllocated = 0; /* # entries available in list */ + PRIntervalTime mx_select_ticks = PR_MillisecondsToInterval(PT_DEFAULT_SELECT_MSEC); + + /* do some real work */ + while (1) + { + PRIntn rv; + PRStatus status; + PRIntn pollIndex; + pt_Continuation *op; + PRIntervalTime now = PR_IntervalNow(); + PRIntervalTime timeout = PR_INTERVAL_NO_TIMEOUT; + + PR_Lock(pt_tq.ml); + while (NULL == pt_tq.head) + { + status = PR_WaitCondVar(pt_tq.new_op, PR_INTERVAL_NO_TIMEOUT); + if ((PR_FAILURE == status) + && (PR_PENDING_INTERRUPT_ERROR == PR_GetError())) { + break; + } + } + pollingListNeeded = pt_tq.op_count; + PR_Unlock(pt_tq.ml); + + /* Okay. We're history */ + if ((PR_FAILURE == status) + && (PR_PENDING_INTERRUPT_ERROR == PR_GetError())) { + break; + } + + /* + * We are not holding the pt_tq.ml lock now, so more items may + * get added to pt_tq during this window of time. We hope + * that 10 more spaces in the polling list should be enough. + */ + + FD_ZERO(&readSet); + FD_ZERO(&writeSet); + FD_ZERO(&exceptSet); + pollingListNeeded += 10; + if (pollingListNeeded > pollingSlotsAllocated) + { + if (NULL != pollingList) { + PR_DELETE(pollingList); + } + pollingList = PR_MALLOC(pollingListNeeded * sizeof(PRPollDesc)); + PR_ASSERT(NULL != pollingList); + pollingSlotsAllocated = pollingListNeeded; + } + +#if defined(DEBUG) + if (pollingListNeeded > pt_debug.pollingListMax) { + pt_debug.pollingListMax = pollingListUsed; + } +#endif + + /* + * Build up a polling list. + * This list is sorted on time. Operations that have been + * interrupted are completed and not included in the list. + * There is an assertion that the operation is in progress. + */ + pollingListUsed = 0; + PR_Lock(pt_tq.ml); + + for (op = pt_tq.head; NULL != op;) + { + if (pt_continuation_abort == op->status) + { + op->result.code = -1; + op->syserrno = WSAEINTR; + op = pt_FinishTimedInternal(op); + } + else + { + PR_ASSERT(pt_continuation_done != op->status); + op->status = pt_continuation_inprogress; + if (op->event & PR_POLL_READ) { + FD_SET(op->arg1.osfd, &readSet); + } + if (op->event & PR_POLL_WRITE) { + FD_SET(op->arg1.osfd, &writeSet); + } + if (op->event & PR_POLL_EXCEPT) { + FD_SET(op->arg1.osfd, &exceptSet); + } + pollingList[pollingListUsed] = op->arg1.osfd; + pollingListUsed += 1; + if (pollingListUsed == pollingSlotsAllocated) { + break; + } + op = op->next; + } + } + + PR_Unlock(pt_tq.ml); + + /* + * If 'op' isn't NULL at this point, then we didn't get to + * the end of the list. That means that more items got added + * to the list than we anticipated. So, forget this iteration, + * go around the horn again. + * One would hope this doesn't happen all that often. + */ + if (NULL != op) + { +#if defined(DEBUG) + pt_debug.predictionsFoiled += 1; /* keep track */ +#endif + continue; /* make it rethink things */ + } + + /* there's a chance that all ops got blown away */ + if (NULL == pt_tq.head) { + continue; + } + /* if not, we know this is the shortest timeout */ + timeout = pt_tq.head->timeout; + + /* + * We don't want to wait forever on this poll. So keep + * the interval down. The operations, if they are timed, + * still have to timeout, while those that are not timed + * should persist forever. But they may be aborted. That's + * what this anxiety is all about. + */ + if (timeout > mx_select_ticks) { + timeout = mx_select_ticks; + } + + if (PR_INTERVAL_NO_TIMEOUT != pt_tq.head->timeout) { + pt_tq.head->timeout -= timeout; + } + tv.tv_sec = PR_IntervalToSeconds(timeout); + tv.tv_usec = PR_IntervalToMicroseconds(timeout) % PR_USEC_PER_SEC; + + rv = select(0, &readSet, &writeSet, &exceptSet, &tv); + + if (0 == rv) /* poll timed out - what about leading op? */ + { + if (0 == pt_tq.head->timeout) + { + /* + * The leading element of the timed queue has timed + * out. Get rid of it. In any case go around the + * loop again, computing the polling list, checking + * for interrupted operations. + */ + PR_Lock(pt_tq.ml); + do + { + pt_tq.head->result.code = -1; + pt_tq.head->syserrno = WSAETIMEDOUT; + op = pt_FinishTimedInternal(pt_tq.head); + } while ((NULL != op) && (0 == op->timeout)); + PR_Unlock(pt_tq.ml); + } + continue; + } + + if (-1 == rv && (WSAGetLastError() == WSAEINTR + || WSAGetLastError() == WSAEINPROGRESS)) + { + continue; /* go around the loop again */ + } + + /* + * select() says that something in our list is ready for some more + * action or is an invalid fd. Find it, load up the operation and + * see what happens. + */ + + PR_ASSERT(rv > 0 || WSAGetLastError() == WSAENOTSOCK); + + + /* + * $$$ There's a problem here. I'm running the operations list + * and I'm not holding any locks. I don't want to hold the lock + * and do the operation, so this is really messed up.. + * + * This may work out okay. The rule is that only this thread, + * the continuation thread, can remove elements from the list. + * Therefore, the list is at worst, longer than when we built + * the polling list. + */ + op = pt_tq.head; + for (pollIndex = 0; pollIndex < pollingListUsed; ++pollIndex) + { + PRInt16 revents = 0; + + PR_ASSERT(NULL != op); + + /* + * This one wants attention. Redo the operation. + * We know that there can only be more elements + * in the op list than we knew about when we created + * the poll list. Therefore, we might have to skip + * a few ops to find the right one to operation on. + */ + while (pollingList[pollIndex] != op->arg1.osfd ) + { + op = op->next; + PR_ASSERT(NULL != op); + } + + if (FD_ISSET(op->arg1.osfd, &readSet)) { + revents |= PR_POLL_READ; + } + if (FD_ISSET(op->arg1.osfd, &writeSet)) { + revents |= PR_POLL_WRITE; + } + if (FD_ISSET(op->arg1.osfd, &exceptSet)) { + revents |= PR_POLL_EXCEPT; + } + + /* + * Sip over all those not in progress. They'll be + * pruned next time we build a polling list. Call + * the continuation function. If it reports completion, + * finish off the operation. + */ + if (revents && (pt_continuation_inprogress == op->status) + && (op->function(op, revents))) + { + PR_Lock(pt_tq.ml); + op = pt_FinishTimedInternal(op); + PR_Unlock(pt_tq.ml); + } + } + } + if (NULL != pollingList) { + PR_DELETE(pollingList); + } +} /* ContinuationThread */ + +static int pt_Continue(pt_Continuation *op) +{ + PRStatus rv; + /* Finish filling in the blank slots */ + op->status = pt_continuation_sumbitted; + op->complete = PR_NewCondVar(pt_tq.ml); + + PR_Lock(pt_tq.ml); /* we provide the locking */ + + pt_InsertTimedInternal(op); /* insert in the structure */ + + PR_NotifyCondVar(pt_tq.new_op); /* notify the continuation thread */ + + while (pt_continuation_done != op->status) /* wait for completion */ + { + rv = PR_WaitCondVar(op->complete, PR_INTERVAL_NO_TIMEOUT); + /* + * If we get interrupted, we set state the continuation thread will + * see and allow it to finish the I/O operation w/ error. That way + * the rule that only the continuation thread is removing elements + * from the list is still valid. + * + * Don't call interrupt on the continuation thread. That'll just + * piss him off. He's cycling around at least every mx_select_ticks + * anyhow and should notice the request in there. + */ + if ((PR_FAILURE == rv) + && (PR_PENDING_INTERRUPT_ERROR == PR_GetError())) { + op->status = pt_continuation_abort; /* our status */ + } + } + + PR_Unlock(pt_tq.ml); /* we provide the locking */ + + PR_DestroyCondVar(op->complete); + + return op->result.code; /* and the primary answer */ +} /* pt_Continue */ + +static PRBool pt_sendto_cont(pt_Continuation *op, PRInt16 revents) +{ + PRIntn bytes = sendto( + op->arg1.osfd, op->arg2.buffer, op->arg3.amount, op->arg4.flags, + (struct sockaddr*)op->arg5.addr, sizeof(*(op->arg5.addr))); + op->syserrno = WSAGetLastError(); + if (bytes > 0) /* this is progress */ + { + char *bp = op->arg2.buffer; + bp += bytes; /* adjust the buffer pointer */ + op->arg2.buffer = bp; + op->result.code += bytes; /* accumulate the number sent */ + op->arg3.amount -= bytes; /* and reduce the required count */ + return (0 == op->arg3.amount) ? PR_TRUE : PR_FALSE; + } + else return ((-1 == bytes) && (WSAEWOULDBLOCK == op->syserrno)) ? + PR_FALSE : PR_TRUE; +} /* pt_sendto_cont */ + +static PRBool pt_recvfrom_cont(pt_Continuation *op, PRInt16 revents) +{ + PRIntn addr_len = sizeof(*(op->arg5.addr)); + op->result.code = recvfrom( + op->arg1.osfd, op->arg2.buffer, op->arg3.amount, + op->arg4.flags, (struct sockaddr*)op->arg5.addr, &addr_len); + op->syserrno = WSAGetLastError(); + return ((-1 == op->result.code) && (WSAEWOULDBLOCK == op->syserrno)) ? + PR_FALSE : PR_TRUE; +} /* pt_recvfrom_cont */ + +static PRInt32 pt_SendTo( + SOCKET osfd, const void *buf, + PRInt32 amount, PRInt32 flags, const PRNetAddr *addr, + PRIntn addrlen, PRIntervalTime timeout) +{ + PRInt32 bytes = -1, err; + PRBool fNeedContinue = PR_FALSE; + + bytes = sendto( + osfd, buf, amount, flags, + (struct sockaddr*)addr, PR_NETADDR_SIZE(addr)); + if (bytes == -1) { + if ((err = WSAGetLastError()) == WSAEWOULDBLOCK) { + fNeedContinue = PR_TRUE; + } + else { + _PR_MD_MAP_SENDTO_ERROR(err); + } + } + if (fNeedContinue == PR_TRUE) + { + pt_Continuation op; + op.arg1.osfd = osfd; + op.arg2.buffer = (void*)buf; + op.arg3.amount = amount; + op.arg4.flags = flags; + op.arg5.addr = (PRNetAddr*)addr; + op.timeout = timeout; + op.result.code = 0; /* initialize the number sent */ + op.function = pt_sendto_cont; + op.event = PR_POLL_WRITE | PR_POLL_EXCEPT; + bytes = pt_Continue(&op); + if (bytes < 0) { + WSASetLastError(op.syserrno); + _PR_MD_MAP_SENDTO_ERROR(op.syserrno); + } + } + return bytes; +} /* pt_SendTo */ + +static PRInt32 pt_RecvFrom(SOCKET osfd, void *buf, PRInt32 amount, + PRInt32 flags, PRNetAddr *addr, PRIntn *addr_len, PRIntervalTime timeout) +{ + PRInt32 bytes = -1, err; + PRBool fNeedContinue = PR_FALSE; + + bytes = recvfrom( + osfd, buf, amount, flags, + (struct sockaddr*)addr, addr_len); + if (bytes == -1) { + if ((err = WSAGetLastError()) == WSAEWOULDBLOCK) { + fNeedContinue = PR_TRUE; + } + else { + _PR_MD_MAP_RECVFROM_ERROR(err); + } + } + + if (fNeedContinue == PR_TRUE) + { + pt_Continuation op; + op.arg1.osfd = osfd; + op.arg2.buffer = buf; + op.arg3.amount = amount; + op.arg4.flags = flags; + op.arg5.addr = addr; + op.timeout = timeout; + op.function = pt_recvfrom_cont; + op.event = PR_POLL_READ | PR_POLL_EXCEPT; + bytes = pt_Continue(&op); + if (bytes < 0) { + WSASetLastError(op.syserrno); + _PR_MD_MAP_RECVFROM_ERROR(op.syserrno); + } + } + return bytes; +} /* pt_RecvFrom */ diff --git a/nsprpub/pr/src/md/windows/ntmisc.c b/nsprpub/pr/src/md/windows/ntmisc.c new file mode 100644 index 0000000000..839e3de8d8 --- /dev/null +++ b/nsprpub/pr/src/md/windows/ntmisc.c @@ -0,0 +1,1230 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +/* + * ntmisc.c + * + */ + +#include "primpl.h" +#include <math.h> /* for fabs() */ +#include <windows.h> + +char *_PR_MD_GET_ENV(const char *name) +{ + return getenv(name); +} + +/* +** _PR_MD_PUT_ENV() -- add or change environment variable +** +** +*/ +PRIntn _PR_MD_PUT_ENV(const char *name) +{ + return(putenv(name)); +} + + +/* + ************************************************************************** + ************************************************************************** + ** + ** Date and time routines + ** + ************************************************************************** + ************************************************************************** + */ + +/* + * The NSPR epoch (00:00:00 1 Jan 1970 UTC) in FILETIME. + * We store the value in a PRTime variable for convenience. + */ +#ifdef __GNUC__ +const PRTime _pr_filetime_offset = 116444736000000000LL; +const PRTime _pr_filetime_divisor = 10LL; +#else +const PRTime _pr_filetime_offset = 116444736000000000i64; +const PRTime _pr_filetime_divisor = 10i64; +#endif + +#ifdef WINCE + +#define FILETIME_TO_INT64(ft) \ + (((PRInt64)ft.dwHighDateTime) << 32 | (PRInt64)ft.dwLowDateTime) + +static void +LowResTime(LPFILETIME lpft) +{ + GetCurrentFT(lpft); +} + +typedef struct CalibrationData { + long double freq; /* The performance counter frequency */ + long double offset; /* The low res 'epoch' */ + long double timer_offset; /* The high res 'epoch' */ + + /* The last high res time that we returned since recalibrating */ + PRInt64 last; + + PRBool calibrated; + + CRITICAL_SECTION data_lock; + CRITICAL_SECTION calibration_lock; + PRInt64 granularity; +} CalibrationData; + +static CalibrationData calibration; + +typedef void (*GetSystemTimeAsFileTimeFcn)(LPFILETIME); +static GetSystemTimeAsFileTimeFcn ce6_GetSystemTimeAsFileTime = NULL; + +static void +NowCalibrate(void) +{ + FILETIME ft, ftStart; + LARGE_INTEGER liFreq, now; + + if (calibration.freq == 0.0) { + if(!QueryPerformanceFrequency(&liFreq)) { + /* High-performance timer is unavailable */ + calibration.freq = -1.0; + } else { + calibration.freq = (long double) liFreq.QuadPart; + } + } + if (calibration.freq > 0.0) { + PRInt64 calibrationDelta = 0; + /* + * By wrapping a timeBegin/EndPeriod pair of calls around this loop, + * the loop seems to take much less time (1 ms vs 15ms) on Vista. + */ + timeBeginPeriod(1); + LowResTime(&ftStart); + do { + LowResTime(&ft); + } while (memcmp(&ftStart,&ft, sizeof(ft)) == 0); + timeEndPeriod(1); + + calibration.granularity = + (FILETIME_TO_INT64(ft) - FILETIME_TO_INT64(ftStart))/10; + + QueryPerformanceCounter(&now); + + calibration.offset = (long double) FILETIME_TO_INT64(ft); + calibration.timer_offset = (long double) now.QuadPart; + /* + * The windows epoch is around 1600. The unix epoch is around 1970. + * _pr_filetime_offset is the difference (in windows time units which + * are 10 times more highres than the JS time unit) + */ + calibration.offset -= _pr_filetime_offset; + calibration.offset *= 0.1; + calibration.last = 0; + + calibration.calibrated = PR_TRUE; + } +} + +#define CALIBRATIONLOCK_SPINCOUNT 0 +#define DATALOCK_SPINCOUNT 4096 +#define LASTLOCK_SPINCOUNT 4096 + +void +_MD_InitTime(void) +{ + /* try for CE6 GetSystemTimeAsFileTime first */ + HANDLE h = GetModuleHandleW(L"coredll.dll"); + ce6_GetSystemTimeAsFileTime = (GetSystemTimeAsFileTimeFcn) + GetProcAddressA(h, "GetSystemTimeAsFileTime"); + + /* otherwise go the slow route */ + if (ce6_GetSystemTimeAsFileTime == NULL) { + memset(&calibration, 0, sizeof(calibration)); + NowCalibrate(); + InitializeCriticalSection(&calibration.calibration_lock); + InitializeCriticalSection(&calibration.data_lock); + } +} + +void +_MD_CleanupTime(void) +{ + if (ce6_GetSystemTimeAsFileTime == NULL) { + DeleteCriticalSection(&calibration.calibration_lock); + DeleteCriticalSection(&calibration.data_lock); + } +} + +#define MUTEX_SETSPINCOUNT(m, c) + +/* + *----------------------------------------------------------------------- + * + * PR_Now -- + * + * Returns the current time in microseconds since the epoch. + * The epoch is midnight January 1, 1970 GMT. + * The implementation is machine dependent. This is the + * implementation for Windows. + * Cf. time_t time(time_t *tp) + * + *----------------------------------------------------------------------- + */ + +PR_IMPLEMENT(PRTime) +PR_Now(void) +{ + long double lowresTime, highresTimerValue; + FILETIME ft; + LARGE_INTEGER now; + PRBool calibrated = PR_FALSE; + PRBool needsCalibration = PR_FALSE; + PRInt64 returnedTime; + long double cachedOffset = 0.0; + + if (ce6_GetSystemTimeAsFileTime) { + union { + FILETIME ft; + PRTime prt; + } currentTime; + + PR_ASSERT(sizeof(FILETIME) == sizeof(PRTime)); + + ce6_GetSystemTimeAsFileTime(¤tTime.ft); + + /* written this way on purpose, since the second term becomes + * a constant, and the entire expression is faster to execute. + */ + return currentTime.prt/_pr_filetime_divisor - + _pr_filetime_offset/_pr_filetime_divisor; + } + + do { + if (!calibration.calibrated || needsCalibration) { + EnterCriticalSection(&calibration.calibration_lock); + EnterCriticalSection(&calibration.data_lock); + + /* Recalibrate only if no one else did before us */ + if (calibration.offset == cachedOffset) { + /* + * Since calibration can take a while, make any other + * threads immediately wait + */ + MUTEX_SETSPINCOUNT(&calibration.data_lock, 0); + + NowCalibrate(); + + calibrated = PR_TRUE; + + /* Restore spin count */ + MUTEX_SETSPINCOUNT(&calibration.data_lock, DATALOCK_SPINCOUNT); + } + LeaveCriticalSection(&calibration.data_lock); + LeaveCriticalSection(&calibration.calibration_lock); + } + + /* Calculate a low resolution time */ + LowResTime(&ft); + lowresTime = + ((long double)(FILETIME_TO_INT64(ft) - _pr_filetime_offset)) * 0.1; + + if (calibration.freq > 0.0) { + long double highresTime, diff; + DWORD timeAdjustment, timeIncrement; + BOOL timeAdjustmentDisabled; + + /* Default to 15.625 ms if the syscall fails */ + long double skewThreshold = 15625.25; + + /* Grab high resolution time */ + QueryPerformanceCounter(&now); + highresTimerValue = (long double)now.QuadPart; + + EnterCriticalSection(&calibration.data_lock); + highresTime = calibration.offset + 1000000L * + (highresTimerValue-calibration.timer_offset)/calibration.freq; + cachedOffset = calibration.offset; + + /* + * On some dual processor/core systems, we might get an earlier + * time so we cache the last time that we returned. + */ + calibration.last = PR_MAX(calibration.last,(PRInt64)highresTime); + returnedTime = calibration.last; + LeaveCriticalSection(&calibration.data_lock); + + /* Get an estimate of clock ticks per second from our own test */ + skewThreshold = calibration.granularity; + /* Check for clock skew */ + diff = lowresTime - highresTime; + + /* + * For some reason that I have not determined, the skew can be + * up to twice a kernel tick. This does not seem to happen by + * itself, but I have only seen it triggered by another program + * doing some kind of file I/O. The symptoms are a negative diff + * followed by an equally large positive diff. + */ + if (fabs(diff) > 2*skewThreshold) { + if (calibrated) { + /* + * If we already calibrated once this instance, and the + * clock is still skewed, then either the processor(s) are + * wildly changing clockspeed or the system is so busy that + * we get switched out for long periods of time. In either + * case, it would be infeasible to make use of high + * resolution results for anything, so let's resort to old + * behavior for this call. It's possible that in the + * future, the user will want the high resolution timer, so + * we don't disable it entirely. + */ + returnedTime = (PRInt64)lowresTime; + needsCalibration = PR_FALSE; + } else { + /* + * It is possible that when we recalibrate, we will return + * a value less than what we have returned before; this is + * unavoidable. We cannot tell the different between a + * faulty QueryPerformanceCounter implementation and user + * changes to the operating system time. Since we must + * respect user changes to the operating system time, we + * cannot maintain the invariant that Date.now() never + * decreases; the old implementation has this behavior as + * well. + */ + needsCalibration = PR_TRUE; + } + } else { + /* No detectable clock skew */ + returnedTime = (PRInt64)highresTime; + needsCalibration = PR_FALSE; + } + } else { + /* No high resolution timer is available, so fall back */ + returnedTime = (PRInt64)lowresTime; + } + } while (needsCalibration); + + return returnedTime; +} + +#else + +PR_IMPLEMENT(PRTime) +PR_Now(void) +{ + PRTime prt; + FILETIME ft; + SYSTEMTIME st; + + GetSystemTime(&st); + SystemTimeToFileTime(&st, &ft); + _PR_FileTimeToPRTime(&ft, &prt); + return prt; +} + +#endif + +/* + *********************************************************************** + *********************************************************************** + * + * Process creation routines + * + *********************************************************************** + *********************************************************************** + */ + +/* + * Assemble the command line by concatenating the argv array. + * On success, this function returns 0 and the resulting command + * line is returned in *cmdLine. On failure, it returns -1. + */ +static int assembleCmdLine(char *const *argv, char **cmdLine) +{ + char *const *arg; + char *p, *q; + size_t cmdLineSize; + int numBackslashes; + int i; + int argNeedQuotes; + + /* + * Find out how large the command line buffer should be. + */ + cmdLineSize = 0; + for (arg = argv; *arg; arg++) { + /* + * \ and " need to be escaped by a \. In the worst case, + * every character is a \ or ", so the string of length + * may double. If we quote an argument, that needs two ". + * Finally, we need a space between arguments, and + * a null byte at the end of command line. + */ + cmdLineSize += 2 * strlen(*arg) /* \ and " need to be escaped */ + + 2 /* we quote every argument */ + + 1; /* space in between, or final null */ + } + p = *cmdLine = PR_MALLOC((PRUint32) cmdLineSize); + if (p == NULL) { + return -1; + } + + for (arg = argv; *arg; arg++) { + /* Add a space to separates the arguments */ + if (arg != argv) { + *p++ = ' '; + } + q = *arg; + numBackslashes = 0; + argNeedQuotes = 0; + + /* + * If the argument is empty or contains white space, it needs to + * be quoted. + */ + if (**arg == '\0' || strpbrk(*arg, " \f\n\r\t\v")) { + argNeedQuotes = 1; + } + + if (argNeedQuotes) { + *p++ = '"'; + } + while (*q) { + if (*q == '\\') { + numBackslashes++; + q++; + } else if (*q == '"') { + if (numBackslashes) { + /* + * Double the backslashes since they are followed + * by a quote + */ + for (i = 0; i < 2 * numBackslashes; i++) { + *p++ = '\\'; + } + numBackslashes = 0; + } + /* To escape the quote */ + *p++ = '\\'; + *p++ = *q++; + } else { + if (numBackslashes) { + /* + * Backslashes are not followed by a quote, so + * don't need to double the backslashes. + */ + for (i = 0; i < numBackslashes; i++) { + *p++ = '\\'; + } + numBackslashes = 0; + } + *p++ = *q++; + } + } + + /* Now we are at the end of this argument */ + if (numBackslashes) { + /* + * Double the backslashes if we have a quote string + * delimiter at the end. + */ + if (argNeedQuotes) { + numBackslashes *= 2; + } + for (i = 0; i < numBackslashes; i++) { + *p++ = '\\'; + } + } + if (argNeedQuotes) { + *p++ = '"'; + } + } + + *p = '\0'; + return 0; +} + +/* + * Assemble the environment block by concatenating the envp array + * (preserving the terminating null byte in each array element) + * and adding a null byte at the end. + * + * Returns 0 on success. The resulting environment block is returned + * in *envBlock. Note that if envp is NULL, a NULL pointer is returned + * in *envBlock. Returns -1 on failure. + */ +static int assembleEnvBlock(char **envp, char **envBlock) +{ + char *p; + char *q; + char **env; + char *curEnv; + char *cwdStart, *cwdEnd; + size_t envBlockSize; + + if (envp == NULL) { + *envBlock = NULL; + return 0; + } + +#ifdef WINCE + { + PRUnichar *wideCurEnv = mozce_GetEnvString(); + int len = WideCharToMultiByte(CP_ACP, 0, wideCurEnv, -1, + NULL, 0, NULL, NULL); + curEnv = (char *) PR_MALLOC(len * sizeof(char)); + WideCharToMultiByte(CP_ACP, 0, wideCurEnv, -1, + curEnv, len, NULL, NULL); + free(wideCurEnv); + } +#else + curEnv = GetEnvironmentStrings(); +#endif + + cwdStart = curEnv; + while (*cwdStart) { + if (cwdStart[0] == '=' && cwdStart[1] != '\0' + && cwdStart[2] == ':' && cwdStart[3] == '=') { + break; + } + cwdStart += strlen(cwdStart) + 1; + } + cwdEnd = cwdStart; + if (*cwdEnd) { + cwdEnd += strlen(cwdEnd) + 1; + while (*cwdEnd) { + if (cwdEnd[0] != '=' || cwdEnd[1] == '\0' + || cwdEnd[2] != ':' || cwdEnd[3] != '=') { + break; + } + cwdEnd += strlen(cwdEnd) + 1; + } + } + envBlockSize = cwdEnd - cwdStart; + + for (env = envp; *env; env++) { + envBlockSize += strlen(*env) + 1; + } + envBlockSize++; + + p = *envBlock = PR_MALLOC((PRUint32) envBlockSize); + if (p == NULL) { +#ifdef WINCE + PR_Free(curEnv); +#else + FreeEnvironmentStrings(curEnv); +#endif + return -1; + } + + q = cwdStart; + while (q < cwdEnd) { + *p++ = *q++; + } +#ifdef WINCE + PR_Free(curEnv); +#else + FreeEnvironmentStrings(curEnv); +#endif + + for (env = envp; *env; env++) { + q = *env; + while (*q) { + *p++ = *q++; + } + *p++ = '\0'; + } + *p = '\0'; + return 0; +} + +/* + * For qsort. We sort (case-insensitive) the environment strings + * before generating the environment block. + */ +static int compare(const void *arg1, const void *arg2) +{ + return _stricmp(* (char**)arg1, * (char**)arg2); +} + +PRProcess * _PR_CreateWindowsProcess( + const char *path, + char *const *argv, + char *const *envp, + const PRProcessAttr *attr) +{ +#ifdef WINCE + STARTUPINFOW startupInfo; + PRUnichar *wideCmdLine; + PRUnichar *wideCwd; + int len = 0; +#else + STARTUPINFO startupInfo; +#endif + DWORD creationFlags = 0; + PROCESS_INFORMATION procInfo; + BOOL retVal; + char *cmdLine = NULL; + char *envBlock = NULL; + char **newEnvp = NULL; + const char *cwd = NULL; /* current working directory */ + PRProcess *proc = NULL; + PRBool hasFdInheritBuffer; + + proc = PR_NEW(PRProcess); + if (!proc) { + PR_SetError(PR_OUT_OF_MEMORY_ERROR, 0); + goto errorExit; + } + + if (assembleCmdLine(argv, &cmdLine) == -1) { + PR_SetError(PR_OUT_OF_MEMORY_ERROR, 0); + goto errorExit; + } + +#ifndef WINCE + /* + * If attr->fdInheritBuffer is not NULL, we need to insert + * it into the envp array, so envp cannot be NULL. + */ + hasFdInheritBuffer = (attr && attr->fdInheritBuffer); + if ((envp == NULL) && hasFdInheritBuffer) { + envp = environ; + } + + if (envp != NULL) { + int idx; + int numEnv; + PRBool found = PR_FALSE; + + numEnv = 0; + while (envp[numEnv]) { + numEnv++; + } + newEnvp = (char **) PR_MALLOC((numEnv + 2) * sizeof(char *)); + for (idx = 0; idx < numEnv; idx++) { + newEnvp[idx] = envp[idx]; + if (hasFdInheritBuffer && !found + && !strncmp(newEnvp[idx], "NSPR_INHERIT_FDS=", 17)) { + newEnvp[idx] = attr->fdInheritBuffer; + found = PR_TRUE; + } + } + if (hasFdInheritBuffer && !found) { + newEnvp[idx++] = attr->fdInheritBuffer; + } + newEnvp[idx] = NULL; + qsort((void *) newEnvp, (size_t) idx, sizeof(char *), compare); + } + if (assembleEnvBlock(newEnvp, &envBlock) == -1) { + PR_SetError(PR_OUT_OF_MEMORY_ERROR, 0); + goto errorExit; + } + + ZeroMemory(&startupInfo, sizeof(startupInfo)); + startupInfo.cb = sizeof(startupInfo); + + if (attr) { + PRBool redirected = PR_FALSE; + + /* + * XXX the default value for stdin, stdout, and stderr + * should probably be the console input and output, not + * those of the parent process. + */ + startupInfo.hStdInput = GetStdHandle(STD_INPUT_HANDLE); + startupInfo.hStdOutput = GetStdHandle(STD_OUTPUT_HANDLE); + startupInfo.hStdError = GetStdHandle(STD_ERROR_HANDLE); + if (attr->stdinFd) { + startupInfo.hStdInput = (HANDLE) attr->stdinFd->secret->md.osfd; + redirected = PR_TRUE; + } + if (attr->stdoutFd) { + startupInfo.hStdOutput = (HANDLE) attr->stdoutFd->secret->md.osfd; + redirected = PR_TRUE; + /* + * If stdout is redirected, we can assume that the process will + * not write anything useful to the console windows, and therefore + * automatically set the CREATE_NO_WINDOW flag. + */ + creationFlags |= CREATE_NO_WINDOW; + } + if (attr->stderrFd) { + startupInfo.hStdError = (HANDLE) attr->stderrFd->secret->md.osfd; + redirected = PR_TRUE; + } + if (redirected) { + startupInfo.dwFlags |= STARTF_USESTDHANDLES; + } + cwd = attr->currentDirectory; + } +#endif + +#ifdef WINCE + len = MultiByteToWideChar(CP_ACP, 0, cmdLine, -1, NULL, 0); + wideCmdLine = (PRUnichar *)PR_MALLOC(len * sizeof(PRUnichar)); + MultiByteToWideChar(CP_ACP, 0, cmdLine, -1, wideCmdLine, len); + len = MultiByteToWideChar(CP_ACP, 0, cwd, -1, NULL, 0); + wideCwd = PR_MALLOC(len * sizeof(PRUnichar)); + MultiByteToWideChar(CP_ACP, 0, cwd, -1, wideCwd, len); + retVal = CreateProcessW(NULL, + wideCmdLine, + NULL, /* security attributes for the new + * process */ + NULL, /* security attributes for the primary + * thread in the new process */ + TRUE, /* inherit handles */ + creationFlags, + envBlock, /* an environment block, consisting + * of a null-terminated block of + * null-terminated strings. Each + * string is in the form: + * name=value + * XXX: usually NULL */ + wideCwd, /* current drive and directory */ + &startupInfo, + &procInfo + ); + PR_Free(wideCmdLine); + PR_Free(wideCwd); +#else + retVal = CreateProcess(NULL, + cmdLine, + NULL, /* security attributes for the new + * process */ + NULL, /* security attributes for the primary + * thread in the new process */ + TRUE, /* inherit handles */ + creationFlags, + envBlock, /* an environment block, consisting + * of a null-terminated block of + * null-terminated strings. Each + * string is in the form: + * name=value + * XXX: usually NULL */ + cwd, /* current drive and directory */ + &startupInfo, + &procInfo + ); +#endif + + if (retVal == FALSE) { + /* XXX what error code? */ + PR_SetError(PR_UNKNOWN_ERROR, GetLastError()); + goto errorExit; + } + + CloseHandle(procInfo.hThread); + proc->md.handle = procInfo.hProcess; + proc->md.id = procInfo.dwProcessId; + + PR_DELETE(cmdLine); + if (newEnvp) { + PR_DELETE(newEnvp); + } + if (envBlock) { + PR_DELETE(envBlock); + } + return proc; + +errorExit: + if (cmdLine) { + PR_DELETE(cmdLine); + } + if (newEnvp) { + PR_DELETE(newEnvp); + } + if (envBlock) { + PR_DELETE(envBlock); + } + if (proc) { + PR_DELETE(proc); + } + return NULL; +} /* _PR_CreateWindowsProcess */ + +PRStatus _PR_DetachWindowsProcess(PRProcess *process) +{ + CloseHandle(process->md.handle); + PR_DELETE(process); + return PR_SUCCESS; +} + +/* + * XXX: This implementation is a temporary quick solution. + * It can be called by native threads only (not by fibers). + */ +PRStatus _PR_WaitWindowsProcess(PRProcess *process, + PRInt32 *exitCode) +{ + DWORD dwRetVal; + + dwRetVal = WaitForSingleObject(process->md.handle, INFINITE); + if (dwRetVal == WAIT_FAILED) { + PR_SetError(PR_UNKNOWN_ERROR, GetLastError()); + return PR_FAILURE; + } + PR_ASSERT(dwRetVal == WAIT_OBJECT_0); + if (exitCode != NULL && + GetExitCodeProcess(process->md.handle, exitCode) == FALSE) { + PR_SetError(PR_UNKNOWN_ERROR, GetLastError()); + return PR_FAILURE; + } + CloseHandle(process->md.handle); + PR_DELETE(process); + return PR_SUCCESS; +} + +PRStatus _PR_KillWindowsProcess(PRProcess *process) +{ + /* + * On Unix, if a process terminates normally, its exit code is + * between 0 and 255. So here on Windows, we use the exit code + * 256 to indicate that the process is killed. + */ + if (TerminateProcess(process->md.handle, 256)) { + return PR_SUCCESS; + } + PR_SetError(PR_UNKNOWN_ERROR, GetLastError()); + return PR_FAILURE; +} + +PRStatus _MD_WindowsGetHostName(char *name, PRUint32 namelen) +{ + PRIntn rv; + PRInt32 syserror; + + rv = gethostname(name, (PRInt32) namelen); + if (0 == rv) { + return PR_SUCCESS; + } + syserror = WSAGetLastError(); + PR_ASSERT(WSANOTINITIALISED != syserror); + _PR_MD_MAP_GETHOSTNAME_ERROR(syserror); + return PR_FAILURE; +} + +PRStatus _MD_WindowsGetSysInfo(PRSysInfo cmd, char *name, PRUint32 namelen) +{ + OSVERSIONINFO osvi; + + PR_ASSERT((cmd == PR_SI_SYSNAME) || (cmd == PR_SI_RELEASE) || + (cmd == PR_SI_RELEASE_BUILD)); + + ZeroMemory(&osvi, sizeof(OSVERSIONINFO)); + osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFO); + + if (! GetVersionEx (&osvi) ) { + _PR_MD_MAP_DEFAULT_ERROR(GetLastError()); + return PR_FAILURE; + } + + switch (osvi.dwPlatformId) { + case VER_PLATFORM_WIN32_NT: + if (PR_SI_SYSNAME == cmd) { + (void)PR_snprintf(name, namelen, "Windows_NT"); + } + else if (PR_SI_RELEASE == cmd) { + (void)PR_snprintf(name, namelen, "%d.%d",osvi.dwMajorVersion, + osvi.dwMinorVersion); + } + else if (PR_SI_RELEASE_BUILD == cmd) { + (void)PR_snprintf(name, namelen, "%d", osvi.dwBuildNumber); + } + break; + case VER_PLATFORM_WIN32_WINDOWS: + if (PR_SI_SYSNAME == cmd) { + if ((osvi.dwMajorVersion > 4) || + ((osvi.dwMajorVersion == 4) && (osvi.dwMinorVersion > 0))) { + (void)PR_snprintf(name, namelen, "Windows_98"); + } + else { + (void)PR_snprintf(name, namelen, "Windows_95"); + } + } else if (PR_SI_RELEASE == cmd) { + (void)PR_snprintf(name, namelen, "%d.%d",osvi.dwMajorVersion, + osvi.dwMinorVersion); + } else if (PR_SI_RELEASE_BUILD == cmd) { + (void)PR_snprintf(name, namelen, "%d", osvi.dwBuildNumber); + } + break; +#ifdef VER_PLATFORM_WIN32_CE + case VER_PLATFORM_WIN32_CE: + if (PR_SI_SYSNAME == cmd) { + (void)PR_snprintf(name, namelen, "Windows_CE"); + } + else if (PR_SI_RELEASE == cmd) { + (void)PR_snprintf(name, namelen, "%d.%d",osvi.dwMajorVersion, + osvi.dwMinorVersion); + } + else if (PR_SI_RELEASE_BUILD == cmd) { + if (namelen) { + *name = 0; + } + } + break; +#endif + default: + if (PR_SI_SYSNAME == cmd) { + (void)PR_snprintf(name, namelen, "Windows_Unknown"); + } + else if (PR_SI_RELEASE == cmd) { + (void)PR_snprintf(name, namelen, "%d.%d",0,0); + } + else if (PR_SI_RELEASE_BUILD == cmd) { + if (namelen) { + *name = 0; + } + } + break; + } + return PR_SUCCESS; +} + +PRStatus _MD_WindowsGetReleaseName(char *name, PRUint32 namelen) +{ + OSVERSIONINFO osvi; + + ZeroMemory(&osvi, sizeof(OSVERSIONINFO)); + osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFO); + + if (! GetVersionEx (&osvi) ) { + _PR_MD_MAP_DEFAULT_ERROR(GetLastError()); + return PR_FAILURE; + } + + switch (osvi.dwPlatformId) { + case VER_PLATFORM_WIN32_NT: + case VER_PLATFORM_WIN32_WINDOWS: + (void)PR_snprintf(name, namelen, "%d.%d",osvi.dwMajorVersion, + osvi.dwMinorVersion); + break; + default: + (void)PR_snprintf(name, namelen, "%d.%d",0,0); + break; + } + return PR_SUCCESS; +} + +/* + ********************************************************************** + * + * Memory-mapped files + * + ********************************************************************** + */ + +PRStatus _MD_CreateFileMap(PRFileMap *fmap, PRInt64 size) +{ + DWORD dwHi, dwLo; + DWORD flProtect; + PROsfd osfd; + + osfd = ( fmap->fd == (PRFileDesc*)-1 )? -1 : fmap->fd->secret->md.osfd; + + dwLo = (DWORD) (size & 0xffffffff); + dwHi = (DWORD) (((PRUint64) size >> 32) & 0xffffffff); + + if (fmap->prot == PR_PROT_READONLY) { + flProtect = PAGE_READONLY; + fmap->md.dwAccess = FILE_MAP_READ; + } else if (fmap->prot == PR_PROT_READWRITE) { + flProtect = PAGE_READWRITE; + fmap->md.dwAccess = FILE_MAP_WRITE; + } else { + PR_ASSERT(fmap->prot == PR_PROT_WRITECOPY); +#ifdef WINCE + /* WINCE does not have FILE_MAP_COPY. */ + PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0); + return PR_FAILURE; +#else + flProtect = PAGE_WRITECOPY; + fmap->md.dwAccess = FILE_MAP_COPY; +#endif + } + + fmap->md.hFileMap = CreateFileMapping( + (HANDLE) osfd, + NULL, + flProtect, + dwHi, + dwLo, + NULL); + + if (fmap->md.hFileMap == NULL) { + PR_SetError(PR_UNKNOWN_ERROR, GetLastError()); + return PR_FAILURE; + } + return PR_SUCCESS; +} + +PRInt32 _MD_GetMemMapAlignment(void) +{ + SYSTEM_INFO info; + GetSystemInfo(&info); + return info.dwAllocationGranularity; +} + +extern PRLogModuleInfo *_pr_shma_lm; + +void * _MD_MemMap( + PRFileMap *fmap, + PROffset64 offset, + PRUint32 len) +{ + DWORD dwHi, dwLo; + void *addr; + + dwLo = (DWORD) (offset & 0xffffffff); + dwHi = (DWORD) (((PRUint64) offset >> 32) & 0xffffffff); + if ((addr = MapViewOfFile(fmap->md.hFileMap, fmap->md.dwAccess, + dwHi, dwLo, len)) == NULL) { + { + LPVOID lpMsgBuf; + + FormatMessage( + FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM, + NULL, + GetLastError(), + MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), // Default language + (LPTSTR) &lpMsgBuf, + 0, + NULL + ); + PR_LOG( _pr_shma_lm, PR_LOG_DEBUG, ("md_memmap(): %s", lpMsgBuf )); + } + PR_SetError(PR_UNKNOWN_ERROR, GetLastError()); + } + return addr; +} + +PRStatus _MD_MemUnmap(void *addr, PRUint32 len) +{ + if (UnmapViewOfFile(addr)) { + return PR_SUCCESS; + } + _PR_MD_MAP_DEFAULT_ERROR(GetLastError()); + return PR_FAILURE; +} + +PRStatus _MD_CloseFileMap(PRFileMap *fmap) +{ + CloseHandle(fmap->md.hFileMap); + PR_DELETE(fmap); + return PR_SUCCESS; +} + +PRStatus _MD_SyncMemMap( + PRFileDesc *fd, + void *addr, + PRUint32 len) +{ + PROsfd osfd = fd->secret->md.osfd; + + /* The FlushViewOfFile page on MSDN says: + * To flush all the dirty pages plus the metadata for the file and + * ensure that they are physically written to disk, call + * FlushViewOfFile and then call the FlushFileBuffers function. + */ + if (FlushViewOfFile(addr, len) && FlushFileBuffers((HANDLE) osfd)) { + return PR_SUCCESS; + } + _PR_MD_MAP_DEFAULT_ERROR(GetLastError()); + return PR_FAILURE; +} + +/* + *********************************************************************** + * + * Atomic increment and decrement operations for x86 processors + * + * We don't use InterlockedIncrement and InterlockedDecrement + * because on NT 3.51 and Win95, they return a number with + * the same sign as the incremented/decremented result, rather + * than the result itself. On NT 4.0 these functions do return + * the incremented/decremented result. + * + * The result is returned in the eax register by the inline + * assembly code. We disable the harmless "no return value" + * warning (4035) for these two functions. + * + *********************************************************************** + */ + +#if defined(_M_IX86) || defined(_X86_) + +#pragma warning(disable: 4035) +PRInt32 _PR_MD_ATOMIC_INCREMENT(PRInt32 *val) +{ +#if defined(__GNUC__) + PRInt32 result; + asm volatile ("lock ; xadd %0, %1" + : "=r"(result), "=m"(*val) + : "0"(1), "m"(*val)); + return result + 1; +#else + __asm + { + mov ecx, val + mov eax, 1 + lock xadd dword ptr [ecx], eax + inc eax + } +#endif /* __GNUC__ */ +} +#pragma warning(default: 4035) + +#pragma warning(disable: 4035) +PRInt32 _PR_MD_ATOMIC_DECREMENT(PRInt32 *val) +{ +#if defined(__GNUC__) + PRInt32 result; + asm volatile ("lock ; xadd %0, %1" + : "=r"(result), "=m"(*val) + : "0"(-1), "m"(*val)); + //asm volatile("lock ; xadd %0, %1" : "=m" (val), "=a" (result) : "-1" (1)); + return result - 1; +#else + __asm + { + mov ecx, val + mov eax, 0ffffffffh + lock xadd dword ptr [ecx], eax + dec eax + } +#endif /* __GNUC__ */ +} +#pragma warning(default: 4035) + +#pragma warning(disable: 4035) +PRInt32 _PR_MD_ATOMIC_ADD(PRInt32 *intp, PRInt32 val) +{ +#if defined(__GNUC__) + PRInt32 result; + //asm volatile("lock ; xadd %1, %0" : "=m" (intp), "=a" (result) : "1" (val)); + asm volatile ("lock ; xadd %0, %1" + : "=r"(result), "=m"(*intp) + : "0"(val), "m"(*intp)); + return result + val; +#else + __asm + { + mov ecx, intp + mov eax, val + mov edx, eax + lock xadd dword ptr [ecx], eax + add eax, edx + } +#endif /* __GNUC__ */ +} +#pragma warning(default: 4035) + +#ifdef _PR_HAVE_ATOMIC_CAS + +#pragma warning(disable: 4035) +void +PR_StackPush(PRStack *stack, PRStackElem *stack_elem) +{ +#if defined(__GNUC__) + void **tos = (void **) stack; + void *tmp; + +retry: + if (*tos == (void *) -1) { + goto retry; + } + + __asm__("xchg %0,%1" + : "=r" (tmp), "=m"(*tos) + : "0" (-1), "m"(*tos)); + + if (tmp == (void *) -1) { + goto retry; + } + + *(void **)stack_elem = tmp; + __asm__("" : : : "memory"); + *tos = stack_elem; +#else + __asm + { + mov ebx, stack + mov ecx, stack_elem + retry: mov eax,[ebx] + cmp eax,-1 + je retry + mov eax,-1 + xchg dword ptr [ebx], eax + cmp eax,-1 + je retry + mov [ecx],eax + mov [ebx],ecx + } +#endif /* __GNUC__ */ +} +#pragma warning(default: 4035) + +#pragma warning(disable: 4035) +PRStackElem * +PR_StackPop(PRStack *stack) +{ +#if defined(__GNUC__) + void **tos = (void **) stack; + void *tmp; + +retry: + if (*tos == (void *) -1) { + goto retry; + } + + __asm__("xchg %0,%1" + : "=r" (tmp), "=m"(*tos) + : "0" (-1), "m"(*tos)); + + if (tmp == (void *) -1) { + goto retry; + } + + if (tmp != (void *) 0) + { + void *next = *(void **)tmp; + *tos = next; + *(void **)tmp = 0; + } + else { + *tos = tmp; + } + + return tmp; +#else + __asm + { + mov ebx, stack + retry: mov eax,[ebx] + cmp eax,-1 + je retry + mov eax,-1 + xchg dword ptr [ebx], eax + cmp eax,-1 + je retry + cmp eax,0 + je empty + mov ecx,[eax] + mov [ebx],ecx + mov [eax],0 + jmp done + empty: + mov [ebx],eax + done: + } +#endif /* __GNUC__ */ +} +#pragma warning(default: 4035) + +#endif /* _PR_HAVE_ATOMIC_CAS */ + +#endif /* x86 processors */ diff --git a/nsprpub/pr/src/md/windows/ntsec.c b/nsprpub/pr/src/md/windows/ntsec.c new file mode 100644 index 0000000000..0006e8399e --- /dev/null +++ b/nsprpub/pr/src/md/windows/ntsec.c @@ -0,0 +1,279 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "primpl.h" + +/* + * ntsec.c + * + * Implement the POSIX-style mode bits (access permissions) for + * files and other securable objects in Windows NT using Windows + * NT's security descriptors with appropriate discretionary + * access-control lists. + */ + +/* + * The security identifiers (SIDs) for owner, primary group, + * and the Everyone (World) group. + * + * These SIDs are looked up during NSPR initialization and + * saved in this global structure (see _PR_NT_InitSids) so + * that _PR_NT_MakeSecurityDescriptorACL doesn't need to + * look them up every time. + */ +static struct { + PSID owner; + PSID group; + PSID everyone; +} _pr_nt_sids; + +/* + * Initialize the SIDs for owner, primary group, and the Everyone + * group in the _pr_nt_sids structure. + * + * This function needs to be called by NSPR initialization. + */ +void _PR_NT_InitSids(void) +{ +#ifdef WINCE /* not supported */ + return; +#else + SID_IDENTIFIER_AUTHORITY SIDAuthWorld = SECURITY_WORLD_SID_AUTHORITY; + HANDLE hToken = NULL; /* initialized to an arbitrary value to + * silence a Purify UMR warning */ + PSID infoBuffer[1024/sizeof(PSID)]; /* defined as an array of PSIDs + * to force proper alignment */ + PTOKEN_OWNER pTokenOwner = (PTOKEN_OWNER) infoBuffer; + PTOKEN_PRIMARY_GROUP pTokenPrimaryGroup + = (PTOKEN_PRIMARY_GROUP) infoBuffer; + DWORD dwLength; + BOOL rv; + + /* + * Look up and make a copy of the owner and primary group + * SIDs in the access token of the calling process. + */ + rv = OpenProcessToken(GetCurrentProcess(), TOKEN_QUERY, &hToken); + if (rv == 0) { + /* + * On non-NT systems, this function is not implemented + * (error code ERROR_CALL_NOT_IMPLEMENTED), and neither are + * the other security functions. There is no point in + * going further. + * + * A process with insufficient access permissions may fail + * with the error code ERROR_ACCESS_DENIED. + */ + PR_LOG(_pr_io_lm, PR_LOG_DEBUG, + ("_PR_NT_InitSids: OpenProcessToken() failed. Error: %d", + GetLastError())); + return; + } + + rv = GetTokenInformation(hToken, TokenOwner, infoBuffer, + sizeof(infoBuffer), &dwLength); + PR_ASSERT(rv != 0); + dwLength = GetLengthSid(pTokenOwner->Owner); + _pr_nt_sids.owner = (PSID) PR_Malloc(dwLength); + PR_ASSERT(_pr_nt_sids.owner != NULL); + rv = CopySid(dwLength, _pr_nt_sids.owner, pTokenOwner->Owner); + PR_ASSERT(rv != 0); + + rv = GetTokenInformation(hToken, TokenPrimaryGroup, infoBuffer, + sizeof(infoBuffer), &dwLength); + PR_ASSERT(rv != 0); + dwLength = GetLengthSid(pTokenPrimaryGroup->PrimaryGroup); + _pr_nt_sids.group = (PSID) PR_Malloc(dwLength); + PR_ASSERT(_pr_nt_sids.group != NULL); + rv = CopySid(dwLength, _pr_nt_sids.group, + pTokenPrimaryGroup->PrimaryGroup); + PR_ASSERT(rv != 0); + + rv = CloseHandle(hToken); + PR_ASSERT(rv != 0); + + /* Create a well-known SID for the Everyone group. */ + rv = AllocateAndInitializeSid(&SIDAuthWorld, 1, + SECURITY_WORLD_RID, + 0, 0, 0, 0, 0, 0, 0, + &_pr_nt_sids.everyone); + PR_ASSERT(rv != 0); +#endif +} + +/* + * Free the SIDs for owner, primary group, and the Everyone group + * in the _pr_nt_sids structure. + * + * This function needs to be called by NSPR cleanup. + */ +void +_PR_NT_FreeSids(void) +{ +#ifdef WINCE + return; +#else + if (_pr_nt_sids.owner) { + PR_Free(_pr_nt_sids.owner); + } + if (_pr_nt_sids.group) { + PR_Free(_pr_nt_sids.group); + } + if (_pr_nt_sids.everyone) { + FreeSid(_pr_nt_sids.everyone); + } +#endif +} + +/* + * Construct a security descriptor whose discretionary access-control + * list implements the specified mode bits. The SIDs for owner, group, + * and everyone are obtained from the global _pr_nt_sids structure. + * Both the security descriptor and access-control list are returned + * and should be freed by a _PR_NT_FreeSecurityDescriptorACL call. + * + * The accessTable array maps NSPR's read, write, and execute access + * rights to the corresponding NT access rights for the securable + * object. + */ +PRStatus +_PR_NT_MakeSecurityDescriptorACL( + PRIntn mode, + DWORD accessTable[], + PSECURITY_DESCRIPTOR *resultSD, + PACL *resultACL) +{ +#ifdef WINCE + PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0); + return PR_FAILURE; +#else + PSECURITY_DESCRIPTOR pSD = NULL; + PACL pACL = NULL; + DWORD cbACL; /* size of ACL */ + DWORD accessMask; + + if (_pr_nt_sids.owner == NULL) { + PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0); + return PR_FAILURE; + } + + pSD = (PSECURITY_DESCRIPTOR) PR_Malloc(SECURITY_DESCRIPTOR_MIN_LENGTH); + if (pSD == NULL) { + _PR_MD_MAP_DEFAULT_ERROR(GetLastError()); + goto failed; + } + if (!InitializeSecurityDescriptor(pSD, SECURITY_DESCRIPTOR_REVISION)) { + _PR_MD_MAP_DEFAULT_ERROR(GetLastError()); + goto failed; + } + if (!SetSecurityDescriptorOwner(pSD, _pr_nt_sids.owner, FALSE)) { + _PR_MD_MAP_DEFAULT_ERROR(GetLastError()); + goto failed; + } + if (!SetSecurityDescriptorGroup(pSD, _pr_nt_sids.group, FALSE)) { + _PR_MD_MAP_DEFAULT_ERROR(GetLastError()); + goto failed; + } + + /* + * Construct a discretionary access-control list with three + * access-control entries, one each for owner, primary group, + * and Everyone. + */ + + cbACL = sizeof(ACL) + + 3 * (sizeof(ACCESS_ALLOWED_ACE) - sizeof(DWORD)) + + GetLengthSid(_pr_nt_sids.owner) + + GetLengthSid(_pr_nt_sids.group) + + GetLengthSid(_pr_nt_sids.everyone); + pACL = (PACL) PR_Malloc(cbACL); + if (pACL == NULL) { + _PR_MD_MAP_DEFAULT_ERROR(GetLastError()); + goto failed; + } + if (!InitializeAcl(pACL, cbACL, ACL_REVISION)) { + _PR_MD_MAP_DEFAULT_ERROR(GetLastError()); + goto failed; + } + accessMask = 0; + if (mode & 00400) { + accessMask |= accessTable[0]; + } + if (mode & 00200) { + accessMask |= accessTable[1]; + } + if (mode & 00100) { + accessMask |= accessTable[2]; + } + if (accessMask && !AddAccessAllowedAce(pACL, ACL_REVISION, accessMask, + _pr_nt_sids.owner)) { + _PR_MD_MAP_DEFAULT_ERROR(GetLastError()); + goto failed; + } + accessMask = 0; + if (mode & 00040) { + accessMask |= accessTable[0]; + } + if (mode & 00020) { + accessMask |= accessTable[1]; + } + if (mode & 00010) { + accessMask |= accessTable[2]; + } + if (accessMask && !AddAccessAllowedAce(pACL, ACL_REVISION, accessMask, + _pr_nt_sids.group)) { + _PR_MD_MAP_DEFAULT_ERROR(GetLastError()); + goto failed; + } + accessMask = 0; + if (mode & 00004) { + accessMask |= accessTable[0]; + } + if (mode & 00002) { + accessMask |= accessTable[1]; + } + if (mode & 00001) { + accessMask |= accessTable[2]; + } + if (accessMask && !AddAccessAllowedAce(pACL, ACL_REVISION, accessMask, + _pr_nt_sids.everyone)) { + _PR_MD_MAP_DEFAULT_ERROR(GetLastError()); + goto failed; + } + + if (!SetSecurityDescriptorDacl(pSD, TRUE, pACL, FALSE)) { + _PR_MD_MAP_DEFAULT_ERROR(GetLastError()); + goto failed; + } + + *resultSD = pSD; + *resultACL = pACL; + return PR_SUCCESS; + +failed: + if (pSD) { + PR_Free(pSD); + } + if (pACL) { + PR_Free(pACL); + } + return PR_FAILURE; +#endif +} + +/* + * Free the specified security descriptor and access-control list + * previously created by _PR_NT_MakeSecurityDescriptorACL. + */ +void +_PR_NT_FreeSecurityDescriptorACL(PSECURITY_DESCRIPTOR pSD, PACL pACL) +{ + if (pSD) { + PR_Free(pSD); + } + if (pACL) { + PR_Free(pACL); + } +} diff --git a/nsprpub/pr/src/md/windows/ntsem.c b/nsprpub/pr/src/md/windows/ntsem.c new file mode 100644 index 0000000000..757bc839e2 --- /dev/null +++ b/nsprpub/pr/src/md/windows/ntsem.c @@ -0,0 +1,52 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +/* + * NT-specific semaphore handling code. + * + */ + + +#include "primpl.h" + + +void +_PR_MD_NEW_SEM(_MDSemaphore *md, PRUintn value) +{ + md->sem = CreateSemaphore(NULL, value, 0x7fffffff, NULL); +} + +void +_PR_MD_DESTROY_SEM(_MDSemaphore *md) +{ + CloseHandle(md->sem); +} + +PRStatus +_PR_MD_TIMED_WAIT_SEM(_MDSemaphore *md, PRIntervalTime ticks) +{ + int rv; + + rv = WaitForSingleObject(md->sem, PR_IntervalToMilliseconds(ticks)); + + if (rv == WAIT_OBJECT_0) { + return PR_SUCCESS; + } + else { + return PR_FAILURE; + } +} + +PRStatus +_PR_MD_WAIT_SEM(_MDSemaphore *md) +{ + return _PR_MD_TIMED_WAIT_SEM(md, PR_INTERVAL_NO_TIMEOUT); +} + +void +_PR_MD_POST_SEM(_MDSemaphore *md) +{ + ReleaseSemaphore(md->sem, 1, NULL); +} diff --git a/nsprpub/pr/src/md/windows/ntthread.c b/nsprpub/pr/src/md/windows/ntthread.c new file mode 100644 index 0000000000..395a80dcc1 --- /dev/null +++ b/nsprpub/pr/src/md/windows/ntthread.c @@ -0,0 +1,590 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "primpl.h" +#include <process.h> /* for _beginthreadex() */ + +/* --- globals ------------------------------------------------ */ +PRLock *_pr_schedLock = NULL; +_PRInterruptTable _pr_interruptTable[] = { { 0 } }; + +BOOL _pr_use_static_tls = TRUE; +__declspec(thread) PRThread *_pr_current_fiber; +__declspec(thread) PRThread *_pr_fiber_last_run; +__declspec(thread) _PRCPU *_pr_current_cpu; +__declspec(thread) PRUintn _pr_ints_off; +DWORD _pr_currentFiberIndex; +DWORD _pr_lastFiberIndex; +DWORD _pr_currentCPUIndex; +DWORD _pr_intsOffIndex; + +_MDLock _nt_idleLock; +PRCList _nt_idleList; +PRUint32 _nt_idleCount; + +extern __declspec(thread) PRThread *_pr_io_restarted_io; +extern DWORD _pr_io_restartedIOIndex; + +typedef HRESULT (WINAPI *SETTHREADDESCRIPTION)(HANDLE, PCWSTR); +static SETTHREADDESCRIPTION sSetThreadDescription = NULL; + +/* Must check the restarted_io *before* decrementing no_sched to 0 */ +#define POST_SWITCH_WORK() \ + PR_BEGIN_MACRO \ + PRThread *restarted_io = \ + (_pr_use_static_tls ? _pr_io_restarted_io \ + : (PRThread *) TlsGetValue(_pr_io_restartedIOIndex)); \ + if (restarted_io) { \ + _nt_handle_restarted_io(restarted_io); \ + } \ + _PR_MD_LAST_THREAD()->no_sched = 0; \ + PR_END_MACRO + +void +_nt_handle_restarted_io(PRThread *restarted_io) +{ + /* After the switch we can resume an IO if needed. + * XXXMB - this needs to be done in create thread, since that could + * be the result for a context switch too.. + */ + PR_ASSERT(restarted_io->io_suspended == PR_TRUE); + PR_ASSERT(restarted_io->md.thr_bound_cpu == restarted_io->cpu); + + _PR_THREAD_LOCK(restarted_io); + if (restarted_io->io_pending == PR_FALSE) { + + /* The IO already completed, put us back on the runq. */ + int pri = restarted_io->priority; + + restarted_io->state = _PR_RUNNABLE; + _PR_RUNQ_LOCK(restarted_io->cpu); + _PR_ADD_RUNQ(restarted_io, restarted_io->cpu, pri); + _PR_RUNQ_UNLOCK(restarted_io->cpu); + } else { + _PR_SLEEPQ_LOCK(restarted_io->cpu); + _PR_ADD_SLEEPQ(restarted_io, restarted_io->sleep); + _PR_SLEEPQ_UNLOCK(restarted_io->cpu); + } + restarted_io->io_suspended = PR_FALSE; + restarted_io->md.thr_bound_cpu = NULL; + + _PR_THREAD_UNLOCK(restarted_io); + + if (_pr_use_static_tls) { + _pr_io_restarted_io = NULL; + } else { + TlsSetValue(_pr_io_restartedIOIndex, NULL); + } +} + +void +_PR_MD_EARLY_INIT() +{ + HMODULE hModule; + + _MD_NEW_LOCK( &_nt_idleLock ); + _nt_idleCount = 0; + PR_INIT_CLIST(&_nt_idleList); + +#if 0 + /* Make the clock tick at least once per millisecond */ + if ( timeBeginPeriod(1) == TIMERR_NOCANDO) { + /* deep yoghurt; clock doesn't tick fast enough! */ + PR_ASSERT(0); + } +#endif + + if (!_pr_use_static_tls) { + _pr_currentFiberIndex = TlsAlloc(); + _pr_lastFiberIndex = TlsAlloc(); + _pr_currentCPUIndex = TlsAlloc(); + _pr_intsOffIndex = TlsAlloc(); + _pr_io_restartedIOIndex = TlsAlloc(); + } + + // SetThreadDescription is Windows 10 build 1607+ + hModule = GetModuleHandleW(L"kernel32.dll"); + if (hModule) { + sSetThreadDescription = + (SETTHREADDESCRIPTION) GetProcAddress( + hModule, + "SetThreadDescription"); + } +} + +void _PR_MD_CLEANUP_BEFORE_EXIT(void) +{ + _PR_NT_FreeSids(); + + WSACleanup(); + + if (!_pr_use_static_tls) { + TlsFree(_pr_currentFiberIndex); + TlsFree(_pr_lastFiberIndex); + TlsFree(_pr_currentCPUIndex); + TlsFree(_pr_intsOffIndex); + TlsFree(_pr_io_restartedIOIndex); + } +} + +PRStatus +_PR_MD_INIT_THREAD(PRThread *thread) +{ + thread->md.overlapped.ioModel = _MD_BlockingIO; + thread->md.overlapped.data.mdThread = &thread->md; + + if (thread->flags & _PR_GLOBAL_SCOPE) { + if (thread->flags & (_PR_PRIMORDIAL | _PR_ATTACHED)) { + /* + ** Warning: + ** -------- + ** NSPR requires a real handle to every thread. + ** GetCurrentThread() returns a pseudo-handle which + ** is not suitable for some thread operations (e.g., + ** suspending). Therefore, get a real handle from + ** the pseudo handle via DuplicateHandle(...) + */ + DuplicateHandle( + GetCurrentProcess(), /* Process of source handle */ + GetCurrentThread(), /* Pseudo Handle to dup */ + GetCurrentProcess(), /* Process of handle */ + &(thread->md.handle), /* resulting handle */ + 0L, /* access flags */ + FALSE, /* Inheritable */ + DUPLICATE_SAME_ACCESS); /* Options */ + } + + /* Create the blocking IO semaphore */ + thread->md.blocked_sema = CreateSemaphore(NULL, 0, 1, NULL); + if (thread->md.blocked_sema == NULL) { + return PR_FAILURE; + } + if (_native_threads_only) { + /* Create the blocking IO semaphore */ + thread->md.thr_event = CreateEvent(NULL, TRUE, FALSE, NULL); + if (thread->md.thr_event == NULL) { + return PR_FAILURE; + } + } + } + + return PR_SUCCESS; +} + +static unsigned __stdcall +pr_root(void *arg) +{ + PRThread *thread = (PRThread *)arg; + thread->md.start(thread); + return 0; +} + +PRStatus +_PR_MD_CREATE_THREAD(PRThread *thread, + void (*start)(void *), + PRThreadPriority priority, + PRThreadScope scope, + PRThreadState state, + PRUint32 stackSize) +{ + + thread->md.start = start; + thread->md.handle = (HANDLE) _beginthreadex( + NULL, + thread->stack->stackSize, + pr_root, + (void *)thread, + CREATE_SUSPENDED | STACK_SIZE_PARAM_IS_A_RESERVATION, + &(thread->id)); + if(!thread->md.handle) { + PRErrorCode prerror; + thread->md.fiber_last_error = GetLastError(); + switch (errno) { + case ENOMEM: + prerror = PR_OUT_OF_MEMORY_ERROR; + break; + case EAGAIN: + prerror = PR_INSUFFICIENT_RESOURCES_ERROR; + break; + case EINVAL: + prerror = PR_INVALID_ARGUMENT_ERROR; + break; + default: + prerror = PR_UNKNOWN_ERROR; + } + PR_SetError(prerror, errno); + return PR_FAILURE; + } + + thread->md.id = thread->id; + /* + * On windows, a thread is created with a thread priority of + * THREAD_PRIORITY_NORMAL. + */ + if (priority != PR_PRIORITY_NORMAL) { + _PR_MD_SET_PRIORITY(&(thread->md), priority); + } + + /* Activate the thread */ + if ( ResumeThread( thread->md.handle ) != -1) { + return PR_SUCCESS; + } + + PR_SetError(PR_UNKNOWN_ERROR, GetLastError()); + return PR_FAILURE; +} + +void +_PR_MD_JOIN_THREAD(_MDThread *md) +{ + DWORD rv; + + rv = WaitForSingleObject(md->handle, INFINITE); + PR_ASSERT(WAIT_OBJECT_0 == rv); +} + +void +_PR_MD_END_THREAD(void) +{ + _endthreadex(0); +} + +void +_PR_MD_YIELD(void) +{ + /* Can NT really yield at all? */ + Sleep(0); +} + +void +_PR_MD_SET_PRIORITY(_MDThread *thread, PRThreadPriority newPri) +{ + int nativePri; + BOOL rv; + + if (newPri < PR_PRIORITY_FIRST) { + newPri = PR_PRIORITY_FIRST; + } else if (newPri > PR_PRIORITY_LAST) { + newPri = PR_PRIORITY_LAST; + } + switch (newPri) { + case PR_PRIORITY_LOW: + nativePri = THREAD_PRIORITY_BELOW_NORMAL; + break; + case PR_PRIORITY_NORMAL: + nativePri = THREAD_PRIORITY_NORMAL; + break; + case PR_PRIORITY_HIGH: + nativePri = THREAD_PRIORITY_ABOVE_NORMAL; + break; + case PR_PRIORITY_URGENT: + nativePri = THREAD_PRIORITY_HIGHEST; + } + rv = SetThreadPriority(thread->handle, nativePri); + PR_ASSERT(rv); + if (!rv) { + PR_LOG(_pr_thread_lm, PR_LOG_MIN, + ("PR_SetThreadPriority: can't set thread priority\n")); + } + return; +} + +const DWORD MS_VC_EXCEPTION = 0x406D1388; + +#pragma pack(push,8) +typedef struct tagTHREADNAME_INFO +{ + DWORD dwType; // Must be 0x1000. + LPCSTR szName; // Pointer to name (in user addr space). + DWORD dwThreadID; // Thread ID (-1=caller thread). + DWORD dwFlags; // Reserved for future use, must be zero. +} THREADNAME_INFO; +#pragma pack(pop) + +void +_PR_MD_SET_CURRENT_THREAD_NAME(const char *name) +{ +#ifdef _MSC_VER + THREADNAME_INFO info; +#endif + + if (sSetThreadDescription) { + WCHAR wideName[MAX_PATH]; + if (MultiByteToWideChar(CP_ACP, 0, name, -1, wideName, MAX_PATH)) { + sSetThreadDescription(GetCurrentThread(), wideName); + } + } + +#ifdef _MSC_VER + if (!IsDebuggerPresent()) { + return; + } + + info.dwType = 0x1000; + info.szName = (char*) name; + info.dwThreadID = -1; + info.dwFlags = 0; + + __try { + RaiseException(MS_VC_EXCEPTION, + 0, + sizeof(info) / sizeof(ULONG_PTR), + (ULONG_PTR*)&info); + } __except(EXCEPTION_CONTINUE_EXECUTION) { + } +#endif +} + +void +_PR_MD_CLEAN_THREAD(PRThread *thread) +{ + BOOL rv; + + if (thread->md.acceptex_buf) { + PR_DELETE(thread->md.acceptex_buf); + } + + if (thread->md.xmit_bufs) { + PR_DELETE(thread->md.xmit_bufs); + } + + if (thread->md.blocked_sema) { + rv = CloseHandle(thread->md.blocked_sema); + PR_ASSERT(rv); + thread->md.blocked_sema = 0; + } + if (_native_threads_only) { + if (thread->md.thr_event) { + rv = CloseHandle(thread->md.thr_event); + PR_ASSERT(rv); + thread->md.thr_event = 0; + } + } + + if (thread->md.handle) { + rv = CloseHandle(thread->md.handle); + PR_ASSERT(rv); + thread->md.handle = 0; + } + + /* Don't call DeleteFiber on current fiber or we'll kill the whole thread. + * Don't call free(thread) until we've switched off the thread. + * So put this fiber (or thread) on a list to be deleted by the idle + * fiber next time we have a chance. + */ + if (!(thread->flags & (_PR_ATTACHED|_PR_GLOBAL_SCOPE))) { + _MD_LOCK(&_nt_idleLock); + _nt_idleCount++; + PR_APPEND_LINK(&thread->links, &_nt_idleList); + _MD_UNLOCK(&_nt_idleLock); + } +} + +void +_PR_MD_EXIT_THREAD(PRThread *thread) +{ + BOOL rv; + + if (thread->md.acceptex_buf) { + PR_DELETE(thread->md.acceptex_buf); + } + + if (thread->md.xmit_bufs) { + PR_DELETE(thread->md.xmit_bufs); + } + + if (thread->md.blocked_sema) { + rv = CloseHandle(thread->md.blocked_sema); + PR_ASSERT(rv); + thread->md.blocked_sema = 0; + } + + if (_native_threads_only) { + if (thread->md.thr_event) { + rv = CloseHandle(thread->md.thr_event); + PR_ASSERT(rv); + thread->md.thr_event = 0; + } + } + + if (thread->md.handle) { + rv = CloseHandle(thread->md.handle); + PR_ASSERT(rv); + thread->md.handle = 0; + } + + if (thread->flags & _PR_GLOBAL_SCOPE) { + _MD_SET_CURRENT_THREAD(NULL); + } +} + + +void +_PR_MD_EXIT(PRIntn status) +{ + _exit(status); +} + +#ifdef HAVE_FIBERS + +void +_pr_fiber_mainline(void *unused) +{ + PRThread *fiber = _PR_MD_CURRENT_THREAD(); + + POST_SWITCH_WORK(); + + fiber->md.fiber_fn(fiber->md.fiber_arg); +} + +PRThread *_PR_MD_CREATE_USER_THREAD( + PRUint32 stacksize, void (*start)(void *), void *arg) +{ + PRThread *thread; + + if ( (thread = PR_NEW(PRThread)) == NULL ) { + return NULL; + } + + memset(thread, 0, sizeof(PRThread)); + thread->md.fiber_fn = start; + thread->md.fiber_arg = arg; + thread->md.fiber_stacksize = stacksize; + return thread; +} + +void +_PR_MD_CREATE_PRIMORDIAL_USER_THREAD(PRThread *thread) +{ + thread->md.fiber_id = ConvertThreadToFiber(NULL); + PR_ASSERT(thread->md.fiber_id); + _MD_SET_CURRENT_THREAD(thread); + _MD_SET_LAST_THREAD(thread); + thread->no_sched = 1; + return; +} + +void +_PR_MD_INIT_CONTEXT(PRThread *thread, char *top, void (*start) (void), PRBool *status) +{ + thread->md.fiber_fn = (void (*)(void *))start; + thread->md.fiber_id = CreateFiber(thread->md.fiber_stacksize, + (LPFIBER_START_ROUTINE)_pr_fiber_mainline, NULL); + if (thread->md.fiber_id != 0) { + *status = PR_TRUE; + } + else { + DWORD oserror = GetLastError(); + PRErrorCode prerror; + if (oserror == ERROR_NOT_ENOUGH_MEMORY) { + prerror = PR_OUT_OF_MEMORY_ERROR; + } else { + prerror = PR_UNKNOWN_ERROR; + } + PR_SetError(prerror, oserror); + *status = PR_FALSE; + } +} + +void +_PR_MD_SWITCH_CONTEXT(PRThread *thread) +{ + PR_ASSERT( !_PR_IS_NATIVE_THREAD(thread) ); + + thread->md.fiber_last_error = GetLastError(); + _PR_Schedule(); +} + +void +_PR_MD_RESTORE_CONTEXT(PRThread *thread) +{ + PRThread *me = _PR_MD_CURRENT_THREAD(); + + PR_ASSERT( !_PR_IS_NATIVE_THREAD(thread) ); + + /* The user-level code for yielding will happily add ourselves to the runq + * and then switch to ourselves; the NT fibers can't handle switching to + * ourselves. + */ + if (thread != me) { + SetLastError(thread->md.fiber_last_error); + _MD_SET_CURRENT_THREAD(thread); + _PR_MD_SET_LAST_THREAD(me); + thread->no_sched = 1; + SwitchToFiber(thread->md.fiber_id); + POST_SWITCH_WORK(); + } +} + + +#endif /* HAVE_FIBERS */ + +PRInt32 _PR_MD_SETTHREADAFFINITYMASK(PRThread *thread, PRUint32 mask ) +{ + int rv; + + rv = SetThreadAffinityMask(thread->md.handle, mask); + + return rv?0:-1; +} + +PRInt32 _PR_MD_GETTHREADAFFINITYMASK(PRThread *thread, PRUint32 *mask) +{ + PRInt32 rv, system_mask; + + rv = GetProcessAffinityMask(GetCurrentProcess(), mask, &system_mask); + + return rv?0:-1; +} + +void +_PR_MD_SUSPEND_CPU(_PRCPU *cpu) +{ + _PR_MD_SUSPEND_THREAD(cpu->thread); +} + +void +_PR_MD_RESUME_CPU(_PRCPU *cpu) +{ + _PR_MD_RESUME_THREAD(cpu->thread); +} + +void +_PR_MD_SUSPEND_THREAD(PRThread *thread) +{ + if (_PR_IS_NATIVE_THREAD(thread)) { + /* + ** There seems to be some doubt about whether or not SuspendThread + ** is a synchronous function. The test afterwards is to help veriry + ** that it is, which is what Microsoft says it is. + */ + PRUintn rv = SuspendThread(thread->md.handle); + PR_ASSERT(0xffffffffUL != rv); + } +} + +void +_PR_MD_RESUME_THREAD(PRThread *thread) +{ + if (_PR_IS_NATIVE_THREAD(thread)) { + ResumeThread(thread->md.handle); + } +} + +PRThread* +_MD_CURRENT_THREAD(void) +{ + PRThread *thread; + + thread = _MD_GET_ATTACHED_THREAD(); + + if (NULL == thread) { + thread = _PRI_AttachThread( + PR_USER_THREAD, PR_PRIORITY_NORMAL, NULL, 0); + } + PR_ASSERT(thread != NULL); + return thread; +} + diff --git a/nsprpub/pr/src/md/windows/objs.mk b/nsprpub/pr/src/md/windows/objs.mk new file mode 100644 index 0000000000..89f022e8ad --- /dev/null +++ b/nsprpub/pr/src/md/windows/objs.mk @@ -0,0 +1,48 @@ +# +# This Source Code Form is subject to the terms of the Mozilla Public +# License, v. 2.0. If a copy of the MPL was not distributed with this +# file, You can obtain one at http://mozilla.org/MPL/2.0/. + + +ifeq ($(OS_TARGET),WINNT) +CSRCS = ntmisc.c \ + ntsec.c \ + ntsem.c \ + ntinrval.c \ + ntgc.c \ + ntio.c \ + ntthread.c \ + ntdllmn.c \ + win32_errors.c \ + w32ipcsem.c \ + w32poll.c \ + w32rng.c \ + w32shm.c +else +ifeq (,$(filter-out WIN95 WINCE WINMO, $(OS_TARGET))) +CSRCS = ntmisc.c \ + ntsec.c \ + ntsem.c \ + ntinrval.c \ + ntgc.c \ + w95thred.c \ + w95io.c \ + w95cv.c \ + w95sock.c \ + win32_errors.c \ + w32ipcsem.c \ + w32poll.c \ + w32rng.c \ + w32shm.c \ + w95dllmain.c +else +endif # win95 +endif # winnt + +CSRCS += $(PR_MD_CSRCS) +ASFILES += $(PR_MD_ASFILES) + +OBJS += $(addprefix md/windows/$(OBJDIR)/,$(CSRCS:.c=.$(OBJ_SUFFIX))) \ + $(addprefix md/windows/$(OBJDIR)/,$(ASFILES:.s=.$(OBJ_SUFFIX))) + + diff --git a/nsprpub/pr/src/md/windows/w32ipcsem.c b/nsprpub/pr/src/md/windows/w32ipcsem.c new file mode 100644 index 0000000000..500009352b --- /dev/null +++ b/nsprpub/pr/src/md/windows/w32ipcsem.c @@ -0,0 +1,230 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +/* + * File: w32ipcsem.c + * Description: implements named semaphores for NT and WIN95. + */ + +#include "primpl.h" + +#ifdef WINCE +static HANDLE OpenSemaphore(DWORD inDesiredAccess, + BOOL inInheritHandle, + const char *inName) +{ + HANDLE retval = NULL; + HANDLE semaphore = NULL; + PRUnichar wideName[MAX_PATH]; /* name size is limited to MAX_PATH */ + + MultiByteToWideChar(CP_ACP, 0, inName, -1, wideName, MAX_PATH); + /* 0x7fffffff is the max count for our semaphore */ + semaphore = CreateSemaphoreW(NULL, 0, 0x7fffffff, wideName); + if (NULL != semaphore) { + DWORD lastErr = GetLastError(); + + if (ERROR_ALREADY_EXISTS != lastErr) { + CloseHandle(semaphore); + } + else { + retval = semaphore; + } + } + return retval; +} +#endif + +/* + * NSPR-to-NT access right mapping table for semaphore objects. + * + * The SYNCHRONIZE access is required by WaitForSingleObject. + * The SEMAPHORE_MODIFY_STATE access is required by ReleaseSemaphore. + * The OR of these three access masks must equal SEMAPHORE_ALL_ACCESS. + * This is because if a semaphore object with the specified name + * exists, CreateSemaphore requests SEMAPHORE_ALL_ACCESS access to + * the existing object. + */ +static DWORD semAccessTable[] = { + STANDARD_RIGHTS_REQUIRED|0x1, /* read (0x1 is "query state") */ + STANDARD_RIGHTS_REQUIRED|SYNCHRONIZE|SEMAPHORE_MODIFY_STATE, /* write */ + 0 /* execute */ +}; + +#ifndef _PR_GLOBAL_THREADS_ONLY + +/* + * A fiber cannot call WaitForSingleObject because that + * will block the other fibers running on the same thread. + * If a fiber needs to wait on a (semaphore) handle, we + * create a native thread to call WaitForSingleObject and + * have the fiber join the native thread. + */ + +/* + * Arguments, return value, and error code for WaitForSingleObject + */ +struct WaitSingleArg { + HANDLE handle; + DWORD timeout; + DWORD rv; + DWORD error; +}; + +static void WaitSingleThread(void *arg) +{ + struct WaitSingleArg *warg = (struct WaitSingleArg *) arg; + + warg->rv = WaitForSingleObject(warg->handle, warg->timeout); + if (warg->rv == WAIT_FAILED) { + warg->error = GetLastError(); + } +} + +static DWORD FiberSafeWaitForSingleObject( + HANDLE hHandle, + DWORD dwMilliseconds +) +{ + PRThread *me = _PR_MD_CURRENT_THREAD(); + + if (_PR_IS_NATIVE_THREAD(me)) { + return WaitForSingleObject(hHandle, dwMilliseconds); + } else { + PRThread *waitThread; + struct WaitSingleArg warg; + PRStatus rv; + + warg.handle = hHandle; + warg.timeout = dwMilliseconds; + waitThread = PR_CreateThread( + PR_USER_THREAD, WaitSingleThread, &warg, + PR_PRIORITY_NORMAL, PR_GLOBAL_THREAD, PR_JOINABLE_THREAD, 0); + if (waitThread == NULL) { + return WAIT_FAILED; + } + + rv = PR_JoinThread(waitThread); + PR_ASSERT(rv == PR_SUCCESS); + if (rv == PR_FAILURE) { + return WAIT_FAILED; + } + if (warg.rv == WAIT_FAILED) { + SetLastError(warg.error); + } + return warg.rv; + } +} + +#endif /* !_PR_GLOBAL_THREADS_ONLY */ + +PRSem *_PR_MD_OPEN_SEMAPHORE( + const char *osname, PRIntn flags, PRIntn mode, PRUintn value) +{ + PRSem *sem; + SECURITY_ATTRIBUTES sa; + LPSECURITY_ATTRIBUTES lpSA = NULL; + PSECURITY_DESCRIPTOR pSD = NULL; + PACL pACL = NULL; + + sem = PR_NEW(PRSem); + if (sem == NULL) { + PR_SetError(PR_OUT_OF_MEMORY_ERROR, 0); + return NULL; + } + if (flags & PR_SEM_CREATE) { + if (_PR_NT_MakeSecurityDescriptorACL(mode, semAccessTable, + &pSD, &pACL) == PR_SUCCESS) { + sa.nLength = sizeof(sa); + sa.lpSecurityDescriptor = pSD; + sa.bInheritHandle = FALSE; + lpSA = &sa; + } +#ifdef WINCE + { + /* The size of a sem's name is limited to MAX_PATH. */ + PRUnichar wosname[MAX_PATH]; + MultiByteToWideChar(CP_ACP, 0, osname, -1, wosname, MAX_PATH); + sem->sem = CreateSemaphoreW(lpSA, value, 0x7fffffff, wosname); + } +#else + sem->sem = CreateSemaphoreA(lpSA, value, 0x7fffffff, osname); +#endif + if (lpSA != NULL) { + _PR_NT_FreeSecurityDescriptorACL(pSD, pACL); + } + if (sem->sem == NULL) { + _PR_MD_MAP_DEFAULT_ERROR(GetLastError()); + PR_DELETE(sem); + return NULL; + } + if ((flags & PR_SEM_EXCL) && (GetLastError() == ERROR_ALREADY_EXISTS)) { + PR_SetError(PR_FILE_EXISTS_ERROR, ERROR_ALREADY_EXISTS); + CloseHandle(sem->sem); + PR_DELETE(sem); + return NULL; + } + } else { + sem->sem = OpenSemaphore( + SEMAPHORE_MODIFY_STATE|SYNCHRONIZE, FALSE, osname); + if (sem->sem == NULL) { + DWORD err = GetLastError(); + + /* + * If we open a nonexistent named semaphore, NT + * returns ERROR_FILE_NOT_FOUND, while Win95 + * returns ERROR_INVALID_NAME + */ + if (err == ERROR_INVALID_NAME) { + PR_SetError(PR_FILE_NOT_FOUND_ERROR, err); + } else { + _PR_MD_MAP_DEFAULT_ERROR(GetLastError()); + } + PR_DELETE(sem); + return NULL; + } + } + return sem; +} + +PRStatus _PR_MD_WAIT_SEMAPHORE(PRSem *sem) +{ + DWORD rv; + +#ifdef _PR_GLOBAL_THREADS_ONLY + rv = WaitForSingleObject(sem->sem, INFINITE); +#else + rv = FiberSafeWaitForSingleObject(sem->sem, INFINITE); +#endif + PR_ASSERT(rv == WAIT_FAILED || rv == WAIT_OBJECT_0); + if (rv == WAIT_FAILED) { + _PR_MD_MAP_DEFAULT_ERROR(GetLastError()); + return PR_FAILURE; + } + if (rv != WAIT_OBJECT_0) { + /* Should not happen */ + PR_SetError(PR_UNKNOWN_ERROR, 0); + return PR_FAILURE; + } + return PR_SUCCESS; +} + +PRStatus _PR_MD_POST_SEMAPHORE(PRSem *sem) +{ + if (ReleaseSemaphore(sem->sem, 1, NULL) == FALSE) { + _PR_MD_MAP_DEFAULT_ERROR(GetLastError()); + return PR_FAILURE; + } + return PR_SUCCESS; +} + +PRStatus _PR_MD_CLOSE_SEMAPHORE(PRSem *sem) +{ + if (CloseHandle(sem->sem) == FALSE) { + _PR_MD_MAP_CLOSE_ERROR(GetLastError()); + return PR_FAILURE; + } + PR_DELETE(sem); + return PR_SUCCESS; +} diff --git a/nsprpub/pr/src/md/windows/w32poll.c b/nsprpub/pr/src/md/windows/w32poll.c new file mode 100644 index 0000000000..241c7e3e47 --- /dev/null +++ b/nsprpub/pr/src/md/windows/w32poll.c @@ -0,0 +1,342 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +/* + * This file implements _PR_MD_PR_POLL for Win32. + */ + +/* The default value of FD_SETSIZE is 64. */ +#define FD_SETSIZE 1024 + +#include "primpl.h" + +#if !defined(_PR_GLOBAL_THREADS_ONLY) + +struct select_data_s { + PRInt32 status; + PRInt32 error; + fd_set *rd, *wt, *ex; + const struct timeval *tv; +}; + +static void +_PR_MD_select_thread(void *cdata) +{ + struct select_data_s *cd = (struct select_data_s *)cdata; + + cd->status = select(0, cd->rd, cd->wt, cd->ex, cd->tv); + + if (cd->status == SOCKET_ERROR) { + cd->error = WSAGetLastError(); + } +} + +int _PR_NTFiberSafeSelect( + int nfds, + fd_set *readfds, + fd_set *writefds, + fd_set *exceptfds, + const struct timeval *timeout) +{ + PRThread *me = _PR_MD_CURRENT_THREAD(); + int ready; + + if (_PR_IS_NATIVE_THREAD(me)) { + ready = _MD_SELECT(nfds, readfds, writefds, exceptfds, timeout); + } + else + { + /* + ** Creating a new thread on each call!! + ** I guess web server doesn't use non-block I/O. + */ + PRThread *selectThread; + struct select_data_s data; + data.status = 0; + data.error = 0; + data.rd = readfds; + data.wt = writefds; + data.ex = exceptfds; + data.tv = timeout; + + selectThread = PR_CreateThread( + PR_USER_THREAD, _PR_MD_select_thread, &data, + PR_PRIORITY_NORMAL, PR_GLOBAL_THREAD, PR_JOINABLE_THREAD, 0); + if (selectThread == NULL) { + return -1; + } + + PR_JoinThread(selectThread); + ready = data.status; + if (ready == SOCKET_ERROR) { + WSASetLastError(data.error); + } + } + return ready; +} + +#endif /* !defined(_PR_GLOBAL_THREADS_ONLY) */ + +PRInt32 _PR_MD_PR_POLL(PRPollDesc *pds, PRIntn npds, PRIntervalTime timeout) +{ + int ready, err; + fd_set rd, wt, ex; + fd_set *rdp, *wtp, *exp; + int nrd, nwt, nex; + PRFileDesc *bottom; + PRPollDesc *pd, *epd; + PRThread *me = _PR_MD_CURRENT_THREAD(); + + struct timeval tv, *tvp = NULL; + + if (_PR_PENDING_INTERRUPT(me)) + { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + return -1; + } + + /* + ** Is it an empty set? If so, just sleep for the timeout and return + */ + if (0 == npds) + { + PR_Sleep(timeout); + return 0; + } + + nrd = nwt = nex = 0; + FD_ZERO(&rd); + FD_ZERO(&wt); + FD_ZERO(&ex); + + ready = 0; + for (pd = pds, epd = pd + npds; pd < epd; pd++) + { + SOCKET osfd; + PRInt16 in_flags_read = 0, in_flags_write = 0; + PRInt16 out_flags_read = 0, out_flags_write = 0; + + if ((NULL != pd->fd) && (0 != pd->in_flags)) + { + if (pd->in_flags & PR_POLL_READ) + { + in_flags_read = (pd->fd->methods->poll)( + pd->fd, (PRInt16)(pd->in_flags & ~PR_POLL_WRITE), + &out_flags_read); + } + if (pd->in_flags & PR_POLL_WRITE) + { + in_flags_write = (pd->fd->methods->poll)( + pd->fd, (PRInt16)(pd->in_flags & ~PR_POLL_READ), + &out_flags_write); + } + if ((0 != (in_flags_read & out_flags_read)) + || (0 != (in_flags_write & out_flags_write))) + { + /* this one's ready right now (buffered input) */ + if (0 == ready) + { + /* + * We will have to return without calling the + * system poll/select function. So zero the + * out_flags fields of all the poll descriptors + * before this one. + */ + PRPollDesc *prev; + for (prev = pds; prev < pd; prev++) + { + prev->out_flags = 0; + } + } + ready += 1; + pd->out_flags = out_flags_read | out_flags_write; + } + else + { + pd->out_flags = 0; /* pre-condition */ + /* make sure this is an NSPR supported stack */ + bottom = PR_GetIdentitiesLayer(pd->fd, PR_NSPR_IO_LAYER); + /* ignore a socket without PR_NSPR_IO_LAYER available */ + + if ((NULL != bottom) + && (_PR_FILEDESC_OPEN == bottom->secret->state)) + { + if (0 == ready) + { + osfd = (SOCKET) bottom->secret->md.osfd; + if (in_flags_read & PR_POLL_READ) + { + pd->out_flags |= _PR_POLL_READ_SYS_READ; + FD_SET(osfd, &rd); + nrd++; + } + if (in_flags_read & PR_POLL_WRITE) + { + pd->out_flags |= _PR_POLL_READ_SYS_WRITE; + FD_SET(osfd, &wt); + nwt++; + } + if (in_flags_write & PR_POLL_READ) + { + pd->out_flags |= _PR_POLL_WRITE_SYS_READ; + FD_SET(osfd, &rd); + nrd++; + } + if (in_flags_write & PR_POLL_WRITE) + { + pd->out_flags |= _PR_POLL_WRITE_SYS_WRITE; + FD_SET(osfd, &wt); + nwt++; + } + if (pd->in_flags & PR_POLL_EXCEPT) { + FD_SET(osfd, &ex); + nex++; + } + } + } + else + { + if (0 == ready) + { + PRPollDesc *prev; + for (prev = pds; prev < pd; prev++) + { + prev->out_flags = 0; + } + } + ready += 1; /* this will cause an abrupt return */ + pd->out_flags = PR_POLL_NVAL; /* bogii */ + } + } + } + else + { + pd->out_flags = 0; + } + } + + if (0 != ready) { + return ready; /* no need to block */ + } + + /* + * FD_SET does nothing if the fd_set's internal fd_array is full. If + * nrd, nwt, or nex is greater than FD_SETSIZE, we know FD_SET must + * have failed to insert an osfd into the corresponding fd_set, and + * therefore we should fail. + */ + if ((nrd > FD_SETSIZE) || (nwt > FD_SETSIZE) || (nex > FD_SETSIZE)) { + PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0); + return -1; + } + + rdp = (0 == nrd) ? NULL : &rd; + wtp = (0 == nwt) ? NULL : &wt; + exp = (0 == nex) ? NULL : &ex; + + if ((NULL == rdp) && (NULL == wtp) && (NULL == exp)) { + PR_Sleep(timeout); + return 0; + } + + if (timeout != PR_INTERVAL_NO_TIMEOUT) + { + PRInt32 ticksPerSecond = PR_TicksPerSecond(); + tv.tv_sec = timeout / ticksPerSecond; + tv.tv_usec = PR_IntervalToMicroseconds( timeout % ticksPerSecond ); + tvp = &tv; + } + +#if defined(_PR_GLOBAL_THREADS_ONLY) + ready = _MD_SELECT(0, rdp, wtp, exp, tvp); +#else + ready = _PR_NTFiberSafeSelect(0, rdp, wtp, exp, tvp); +#endif + + /* + ** Now to unravel the select sets back into the client's poll + ** descriptor list. Is this possibly an area for pissing away + ** a few cycles or what? + */ + if (ready > 0) + { + ready = 0; + for (pd = pds, epd = pd + npds; pd < epd; pd++) + { + PRInt16 out_flags = 0; + if ((NULL != pd->fd) && (0 != pd->in_flags)) + { + SOCKET osfd; + bottom = PR_GetIdentitiesLayer(pd->fd, PR_NSPR_IO_LAYER); + PR_ASSERT(NULL != bottom); + + osfd = (SOCKET) bottom->secret->md.osfd; + + if (FD_ISSET(osfd, &rd)) + { + if (pd->out_flags & _PR_POLL_READ_SYS_READ) { + out_flags |= PR_POLL_READ; + } + if (pd->out_flags & _PR_POLL_WRITE_SYS_READ) { + out_flags |= PR_POLL_WRITE; + } + } + if (FD_ISSET(osfd, &wt)) + { + if (pd->out_flags & _PR_POLL_READ_SYS_WRITE) { + out_flags |= PR_POLL_READ; + } + if (pd->out_flags & _PR_POLL_WRITE_SYS_WRITE) { + out_flags |= PR_POLL_WRITE; + } + } + if (FD_ISSET(osfd, &ex)) { + out_flags |= PR_POLL_EXCEPT; + } + } + pd->out_flags = out_flags; + if (out_flags) { + ready++; + } + } + PR_ASSERT(ready > 0); + } + else if (ready == SOCKET_ERROR) + { + err = WSAGetLastError(); + if (err == WSAENOTSOCK) + { + /* Find the bad fds */ + int optval; + int optlen = sizeof(optval); + ready = 0; + for (pd = pds, epd = pd + npds; pd < epd; pd++) + { + pd->out_flags = 0; + if ((NULL != pd->fd) && (0 != pd->in_flags)) + { + bottom = PR_GetIdentitiesLayer(pd->fd, PR_NSPR_IO_LAYER); + if (getsockopt(bottom->secret->md.osfd, SOL_SOCKET, + SO_TYPE, (char *) &optval, &optlen) == -1) + { + PR_ASSERT(WSAGetLastError() == WSAENOTSOCK); + if (WSAGetLastError() == WSAENOTSOCK) + { + pd->out_flags = PR_POLL_NVAL; + ready++; + } + } + } + } + PR_ASSERT(ready > 0); + } + else { + _PR_MD_MAP_SELECT_ERROR(err); + } + } + + return ready; +} diff --git a/nsprpub/pr/src/md/windows/w32rng.c b/nsprpub/pr/src/md/windows/w32rng.c new file mode 100644 index 0000000000..c07625eccb --- /dev/null +++ b/nsprpub/pr/src/md/windows/w32rng.c @@ -0,0 +1,80 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include <windows.h> +#include <time.h> +#include <io.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <stdio.h> +#include <primpl.h> + +static BOOL +CurrentClockTickTime(LPDWORD lpdwHigh, LPDWORD lpdwLow) +{ + LARGE_INTEGER liCount; + + if (!QueryPerformanceCounter(&liCount)) { + return FALSE; + } + + *lpdwHigh = liCount.u.HighPart; + *lpdwLow = liCount.u.LowPart; + return TRUE; +} + +extern PRSize _PR_MD_GetRandomNoise( void *buf, PRSize size ) +{ + DWORD dwHigh, dwLow, dwVal; + size_t n = 0; + size_t nBytes; + time_t sTime; + + if (size <= 0) { + return 0; + } + + CurrentClockTickTime(&dwHigh, &dwLow); + + // get the maximally changing bits first + nBytes = sizeof(dwLow) > size ? size : sizeof(dwLow); + memcpy((char *)buf, &dwLow, nBytes); + n += nBytes; + size -= nBytes; + + if (size <= 0) { + return n; + } + + nBytes = sizeof(dwHigh) > size ? size : sizeof(dwHigh); + memcpy(((char *)buf) + n, &dwHigh, nBytes); + n += nBytes; + size -= nBytes; + + if (size <= 0) { + return n; + } + + // get the number of milliseconds that have elapsed since Windows started + dwVal = GetTickCount(); + + nBytes = sizeof(dwVal) > size ? size : sizeof(dwVal); + memcpy(((char *)buf) + n, &dwVal, nBytes); + n += nBytes; + size -= nBytes; + + if (size <= 0) { + return n; + } + + // get the time in seconds since midnight Jan 1, 1970 + time(&sTime); + nBytes = sizeof(sTime) > size ? size : sizeof(sTime); + memcpy(((char *)buf) + n, &sTime, nBytes); + n += nBytes; + + return n; +} + diff --git a/nsprpub/pr/src/md/windows/w32shm.c b/nsprpub/pr/src/md/windows/w32shm.c new file mode 100644 index 0000000000..b0d38b9d70 --- /dev/null +++ b/nsprpub/pr/src/md/windows/w32shm.c @@ -0,0 +1,348 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include <private/primpl.h> +#include <string.h> +#include <prshm.h> +#include <prerr.h> +#include <prmem.h> + +#if defined(PR_HAVE_WIN32_NAMED_SHARED_MEMORY) + +extern PRLogModuleInfo *_pr_shm_lm; + +/* + * NSPR-to-NT access right mapping table for file-mapping objects. + * + * The OR of these three access masks must equal FILE_MAP_ALL_ACCESS. + * This is because if a file-mapping object with the specified name + * exists, CreateFileMapping requests full access to the existing + * object. + */ +static DWORD filemapAccessTable[] = { + FILE_MAP_ALL_ACCESS & ~FILE_MAP_WRITE, /* read */ + FILE_MAP_ALL_ACCESS & ~FILE_MAP_READ, /* write */ + 0 /* execute */ +}; + +extern PRSharedMemory * _MD_OpenSharedMemory( + const char *name, + PRSize size, + PRIntn flags, + PRIntn mode +) +{ + char ipcname[PR_IPC_NAME_SIZE]; + PRStatus rc = PR_SUCCESS; + DWORD dwHi, dwLo; + PRSharedMemory *shm; + DWORD flProtect = ( PAGE_READWRITE ); + SECURITY_ATTRIBUTES sa; + LPSECURITY_ATTRIBUTES lpSA = NULL; + PSECURITY_DESCRIPTOR pSD = NULL; + PACL pACL = NULL; + + rc = _PR_MakeNativeIPCName( name, ipcname, PR_IPC_NAME_SIZE, _PRIPCShm ); + if ( PR_FAILURE == rc ) + { + PR_SetError(PR_UNKNOWN_ERROR, 0 ); + PR_LOG(_pr_shm_lm, PR_LOG_DEBUG, ( "PR_OpenSharedMemory: name is invalid")); + return(NULL); + } + + shm = PR_NEWZAP( PRSharedMemory ); + if ( NULL == shm ) + { + PR_SetError(PR_OUT_OF_MEMORY_ERROR, 0 ); + PR_LOG(_pr_shm_lm, PR_LOG_DEBUG, ( "PR_OpenSharedMemory: New PRSharedMemory out of memory")); + return(NULL); + } + + shm->ipcname = PR_MALLOC( (PRUint32) (strlen( ipcname ) + 1) ); + if ( NULL == shm->ipcname ) + { + PR_SetError(PR_OUT_OF_MEMORY_ERROR, 0 ); + PR_LOG(_pr_shm_lm, PR_LOG_DEBUG, ( "PR_OpenSharedMemory: New shm->ipcname out of memory")); + PR_DELETE(shm); + return(NULL); + } + + /* copy args to struct */ + strcpy( shm->ipcname, ipcname ); + shm->size = size; + shm->mode = mode; + shm->flags = flags; + shm->ident = _PR_SHM_IDENT; + + if (flags & PR_SHM_CREATE ) { + dwHi = (DWORD) (((PRUint64) shm->size >> 32) & 0xffffffff); + dwLo = (DWORD) (shm->size & 0xffffffff); + + if (_PR_NT_MakeSecurityDescriptorACL(mode, filemapAccessTable, + &pSD, &pACL) == PR_SUCCESS) { + sa.nLength = sizeof(sa); + sa.lpSecurityDescriptor = pSD; + sa.bInheritHandle = FALSE; + lpSA = &sa; + } +#ifdef WINCE + { + /* + * This is assuming that the name will never be larger than + * MAX_PATH. Should we dynamically allocate? + */ + PRUnichar wideIpcName[MAX_PATH]; + MultiByteToWideChar(CP_ACP, 0, shm->ipcname, -1, + wideIpcName, MAX_PATH); + shm->handle = CreateFileMappingW( + (HANDLE)-1, + lpSA, + flProtect, + dwHi, + dwLo, + wideIpcName); + } +#else + shm->handle = CreateFileMappingA( + (HANDLE)-1, + lpSA, + flProtect, + dwHi, + dwLo, + shm->ipcname); +#endif + if (lpSA != NULL) { + _PR_NT_FreeSecurityDescriptorACL(pSD, pACL); + } + + if ( NULL == shm->handle ) { + PR_LOG(_pr_shm_lm, PR_LOG_DEBUG, + ( "PR_OpenSharedMemory: CreateFileMapping() failed: %s", + shm->ipcname )); + _PR_MD_MAP_DEFAULT_ERROR( GetLastError()); + PR_FREEIF( shm->ipcname ) + PR_DELETE( shm ); + return(NULL); + } else { + if (( flags & PR_SHM_EXCL) && ( GetLastError() == ERROR_ALREADY_EXISTS )) { + PR_LOG(_pr_shm_lm, PR_LOG_DEBUG, + ( "PR_OpenSharedMemory: Request exclusive & already exists", + shm->ipcname )); + PR_SetError( PR_FILE_EXISTS_ERROR, ERROR_ALREADY_EXISTS ); + CloseHandle( shm->handle ); + PR_FREEIF( shm->ipcname ) + PR_DELETE( shm ); + return(NULL); + } else { + PR_LOG(_pr_shm_lm, PR_LOG_DEBUG, + ( "PR_OpenSharedMemory: CreateFileMapping() success: %s, handle: %d", + shm->ipcname, shm->handle )); + return(shm); + } + } + } else { +#ifdef WINCE + PR_SetError( PR_NOT_IMPLEMENTED_ERROR, 0 ); + shm->handle = NULL; /* OpenFileMapping not supported */ +#else + shm->handle = OpenFileMapping( FILE_MAP_WRITE, TRUE, shm->ipcname ); +#endif + if ( NULL == shm->handle ) { + _PR_MD_MAP_DEFAULT_ERROR( GetLastError()); + PR_LOG(_pr_shm_lm, PR_LOG_DEBUG, + ( "PR_OpenSharedMemory: OpenFileMapping() failed: %s, error: %d", + shm->ipcname, PR_GetOSError())); + PR_FREEIF( shm->ipcname ); + PR_DELETE( shm ); + return(NULL); + } else { + PR_LOG(_pr_shm_lm, PR_LOG_DEBUG, + ( "PR_OpenSharedMemory: OpenFileMapping() success: %s, handle: %d", + shm->ipcname, shm->handle )); + return(shm); + } + } + /* returns from separate paths */ +} + +extern void * _MD_AttachSharedMemory( PRSharedMemory *shm, PRIntn flags ) +{ + PRUint32 access = FILE_MAP_WRITE; + void *addr; + + PR_ASSERT( shm->ident == _PR_SHM_IDENT ); + + if ( PR_SHM_READONLY & flags ) { + access = FILE_MAP_READ; + } + + addr = MapViewOfFile( shm->handle, + access, + 0, 0, + shm->size ); + + if ( NULL == addr ) { + _PR_MD_MAP_DEFAULT_ERROR( GetLastError()); + PR_LOG( _pr_shm_lm, PR_LOG_ERROR, + ("_MD_AttachSharedMemory: MapViewOfFile() failed. OSerror: %d", PR_GetOSError())); + } + + return( addr ); +} /* end _MD_ATTACH_SHARED_MEMORY() */ + + +extern PRStatus _MD_DetachSharedMemory( PRSharedMemory *shm, void *addr ) +{ + PRStatus rc = PR_SUCCESS; + BOOL wrc; + + PR_ASSERT( shm->ident == _PR_SHM_IDENT ); + + wrc = UnmapViewOfFile( addr ); + if ( FALSE == wrc ) + { + _PR_MD_MAP_DEFAULT_ERROR( GetLastError()); + PR_LOG( _pr_shm_lm, PR_LOG_ERROR, + ("_MD_DetachSharedMemory: UnmapViewOfFile() failed. OSerror: %d", PR_GetOSError())); + rc = PR_FAILURE; + } + + return( rc ); +} + + +extern PRStatus _MD_CloseSharedMemory( PRSharedMemory *shm ) +{ + PRStatus rc = PR_SUCCESS; + BOOL wrc; + + PR_ASSERT( shm->ident == _PR_SHM_IDENT ); + + wrc = CloseHandle( shm->handle ); + if ( FALSE == wrc ) + { + _PR_MD_MAP_DEFAULT_ERROR( GetLastError()); + PR_LOG( _pr_shm_lm, PR_LOG_ERROR, + ("_MD_CloseSharedMemory: CloseHandle() failed. OSerror: %d", PR_GetOSError())); + rc = PR_FAILURE; + } + PR_FREEIF( shm->ipcname ); + PR_DELETE( shm ); + + return( rc ); +} /* end _MD_CLOSE_SHARED_MEMORY() */ + +extern PRStatus _MD_DeleteSharedMemory( const char *name ) +{ + return( PR_SUCCESS ); +} + + +/* +** Windows implementation of anonymous memory (file) map +*/ +extern PRLogModuleInfo *_pr_shma_lm; + +extern PRFileMap* _md_OpenAnonFileMap( + const char *dirName, + PRSize size, + PRFileMapProtect prot +) +{ + PRFileMap *fm; + HANDLE hFileMap; + + fm = PR_CreateFileMap( (PRFileDesc*)-1, size, prot ); + if ( NULL == fm ) { + PR_LOG( _pr_shma_lm, PR_LOG_DEBUG, + ("_md_OpenAnonFileMap(): PR_CreateFileMap(): failed")); + goto Finished; + } + + /* + ** Make fm->md.hFileMap inheritable. We can't use + ** GetHandleInformation and SetHandleInformation + ** because these two functions fail with + ** ERROR_CALL_NOT_IMPLEMENTED on Win95. + */ + if (DuplicateHandle(GetCurrentProcess(), fm->md.hFileMap, + GetCurrentProcess(), &hFileMap, + 0, TRUE /* inheritable */, + DUPLICATE_SAME_ACCESS) == FALSE) { + PR_SetError( PR_UNKNOWN_ERROR, GetLastError() ); + PR_LOG( _pr_shma_lm, PR_LOG_DEBUG, + ("_md_OpenAnonFileMap(): DuplicateHandle(): failed")); + PR_CloseFileMap( fm ); + fm = NULL; + goto Finished; + } + CloseHandle(fm->md.hFileMap); + fm->md.hFileMap = hFileMap; + +Finished: + return(fm); +} /* end md_OpenAnonFileMap() */ + +/* +** _md_ExportFileMapAsString() +** +*/ +extern PRStatus _md_ExportFileMapAsString( + PRFileMap *fm, + PRSize bufSize, + char *buf +) +{ + PRIntn written; + + written = PR_snprintf( buf, (PRUint32) bufSize, "%d:%" PR_PRIdOSFD ":%ld", + (PRIntn)fm->prot, (PROsfd)fm->md.hFileMap, (PRInt32)fm->md.dwAccess ); + + PR_LOG( _pr_shma_lm, PR_LOG_DEBUG, + ("_md_ExportFileMapAsString(): prot: %x, hFileMap: %x, dwAccess: %x", + fm->prot, fm->md.hFileMap, fm->md.dwAccess )); + + return((written == -1)? PR_FAILURE : PR_SUCCESS); +} /* end _md_ExportFileMapAsString() */ + + +/* +** _md_ImportFileMapFromString() +** +*/ +extern PRFileMap * _md_ImportFileMapFromString( + const char *fmstring +) +{ + PRIntn prot; + PROsfd hFileMap; + PRInt32 dwAccess; + PRFileMap *fm = NULL; + + PR_sscanf( fmstring, "%d:%" PR_SCNdOSFD ":%ld", + &prot, &hFileMap, &dwAccess ); + + fm = PR_NEWZAP(PRFileMap); + if ( NULL == fm ) { + PR_LOG( _pr_shma_lm, PR_LOG_DEBUG, + ("_md_ImportFileMapFromString(): PR_NEWZAP(): Failed")); + return(fm); + } + + fm->prot = (PRFileMapProtect)prot; + fm->md.hFileMap = (HANDLE)hFileMap; + fm->md.dwAccess = (DWORD)dwAccess; + fm->fd = (PRFileDesc*)-1; + + PR_LOG( _pr_shma_lm, PR_LOG_DEBUG, + ("_md_ImportFileMapFromString(): fm: %p, prot: %d, hFileMap: %8.8x, dwAccess: %8.8x, fd: %x", + fm, prot, fm->md.hFileMap, fm->md.dwAccess, fm->fd)); + return(fm); +} /* end _md_ImportFileMapFromString() */ + +#else +Error! Why is PR_HAVE_WIN32_NAMED_SHARED_MEMORY not defined? +#endif /* PR_HAVE_WIN32_NAMED_SHARED_MEMORY */ +/* --- end w32shm.c --- */ diff --git a/nsprpub/pr/src/md/windows/w95cv.c b/nsprpub/pr/src/md/windows/w95cv.c new file mode 100644 index 0000000000..5cf2966ffd --- /dev/null +++ b/nsprpub/pr/src/md/windows/w95cv.c @@ -0,0 +1,371 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +/* + * w95cv.c -- Windows 95 Machine-Dependent Code for Condition Variables + * + * We implement our own condition variable wait queue. Each thread + * has a semaphore object (thread->md.blocked_sema) to block on while + * waiting on a condition variable. + * + * We use a deferred condition notify algorithm. When PR_NotifyCondVar + * or PR_NotifyAllCondVar is called, the condition notifies are simply + * recorded in the _MDLock structure. We defer the condition notifies + * until right after we unlock the lock. This way the awakened threads + * have a better chance to reaquire the lock. + */ + +#include "primpl.h" + +/* + * AddThreadToCVWaitQueueInternal -- + * + * Add the thread to the end of the condition variable's wait queue. + * The CV's lock must be locked when this function is called. + */ + +static void +AddThreadToCVWaitQueueInternal(PRThread *thred, struct _MDCVar *cv) +{ + PR_ASSERT((cv->waitTail != NULL && cv->waitHead != NULL) + || (cv->waitTail == NULL && cv->waitHead == NULL)); + cv->nwait += 1; + thred->md.inCVWaitQueue = PR_TRUE; + thred->md.next = NULL; + thred->md.prev = cv->waitTail; + if (cv->waitHead == NULL) { + cv->waitHead = thred; + } else { + cv->waitTail->md.next = thred; + } + cv->waitTail = thred; +} + +/* + * md_UnlockAndPostNotifies -- + * + * Unlock the lock, and then do the deferred condition notifies. + * If waitThred and waitCV are not NULL, waitThred is added to + * the wait queue of waitCV before the lock is unlocked. + * + * This function is called by _PR_MD_WAIT_CV and _PR_MD_UNLOCK, + * the two places where a lock is unlocked. + */ +static void +md_UnlockAndPostNotifies( + _MDLock *lock, + PRThread *waitThred, + _MDCVar *waitCV) +{ + PRIntn index; + _MDNotified post; + _MDNotified *notified, *prev = NULL; + + /* + * Time to actually notify any conditions that were affected + * while the lock was held. Get a copy of the list that's in + * the lock structure and then zero the original. If it's + * linked to other such structures, we own that storage. + */ + post = lock->notified; /* a safe copy; we own the lock */ + +#if defined(DEBUG) + ZeroMemory(&lock->notified, sizeof(_MDNotified)); /* reset */ +#else + lock->notified.length = 0; /* these are really sufficient */ + lock->notified.link = NULL; +#endif + + /* + * Figure out how many threads we need to wake up. + */ + notified = &post; /* this is where we start */ + do { + for (index = 0; index < notified->length; ++index) { + _MDCVar *cv = notified->cv[index].cv; + PRThread *thred; + int i; + + /* Fast special case: no waiting threads */ + if (cv->waitHead == NULL) { + notified->cv[index].notifyHead = NULL; + continue; + } + + /* General case */ + if (-1 == notified->cv[index].times) { + /* broadcast */ + thred = cv->waitHead; + while (thred != NULL) { + thred->md.inCVWaitQueue = PR_FALSE; + thred = thred->md.next; + } + notified->cv[index].notifyHead = cv->waitHead; + cv->waitHead = cv->waitTail = NULL; + cv->nwait = 0; + } else { + thred = cv->waitHead; + i = notified->cv[index].times; + while (thred != NULL && i > 0) { + thred->md.inCVWaitQueue = PR_FALSE; + thred = thred->md.next; + i--; + } + notified->cv[index].notifyHead = cv->waitHead; + cv->waitHead = thred; + if (cv->waitHead == NULL) { + cv->waitTail = NULL; + } else { + if (cv->waitHead->md.prev != NULL) { + cv->waitHead->md.prev->md.next = NULL; + cv->waitHead->md.prev = NULL; + } + } + cv->nwait -= notified->cv[index].times - i; + } + } + notified = notified->link; + } while (NULL != notified); + + if (waitThred) { + AddThreadToCVWaitQueueInternal(waitThred, waitCV); + } + + /* Release the lock before notifying */ + LeaveCriticalSection(&lock->mutex); + + notified = &post; /* this is where we start */ + do { + for (index = 0; index < notified->length; ++index) { + PRThread *thred; + PRThread *next; + + thred = notified->cv[index].notifyHead; + while (thred != NULL) { + BOOL rv; + + next = thred->md.next; + thred->md.prev = thred->md.next = NULL; + + rv = ReleaseSemaphore(thred->md.blocked_sema, 1, NULL); + PR_ASSERT(rv != 0); + thred = next; + } + } + prev = notified; + notified = notified->link; + if (&post != prev) { + PR_DELETE(prev); + } + } while (NULL != notified); +} + +/* + * Notifies just get posted to the protecting mutex. The + * actual notification is done when the lock is released so that + * MP systems don't contend for a lock that they can't have. + */ +static void md_PostNotifyToCvar(_MDCVar *cvar, _MDLock *lock, + PRBool broadcast) +{ + PRIntn index = 0; + _MDNotified *notified = &lock->notified; + + while (1) { + for (index = 0; index < notified->length; ++index) { + if (notified->cv[index].cv == cvar) { + if (broadcast) { + notified->cv[index].times = -1; + } else if (-1 != notified->cv[index].times) { + notified->cv[index].times += 1; + } + return; + } + } + /* if not full, enter new CV in this array */ + if (notified->length < _MD_CV_NOTIFIED_LENGTH) { + break; + } + + /* if there's no link, create an empty array and link it */ + if (NULL == notified->link) { + notified->link = PR_NEWZAP(_MDNotified); + } + + notified = notified->link; + } + + /* A brand new entry in the array */ + notified->cv[index].times = (broadcast) ? -1 : 1; + notified->cv[index].cv = cvar; + notified->length += 1; +} + +/* + * _PR_MD_NEW_CV() -- Creating new condition variable + * ... Solaris uses cond_init() in similar function. + * + * returns: -1 on failure + * 0 when it succeeds. + * + */ +PRInt32 +_PR_MD_NEW_CV(_MDCVar *cv) +{ + cv->magic = _MD_MAGIC_CV; + /* + * The waitHead, waitTail, and nwait fields are zeroed + * when the PRCondVar structure is created. + */ + return 0; +} + +void _PR_MD_FREE_CV(_MDCVar *cv) +{ + cv->magic = (PRUint32)-1; + return; +} + +/* + * _PR_MD_WAIT_CV() -- Wait on condition variable + */ +void _PR_MD_WAIT_CV(_MDCVar *cv, _MDLock *lock, PRIntervalTime timeout ) +{ + PRThread *thred = _PR_MD_CURRENT_THREAD(); + DWORD rv; + DWORD msecs = (timeout == PR_INTERVAL_NO_TIMEOUT) ? + INFINITE : PR_IntervalToMilliseconds(timeout); + + /* + * If we have pending notifies, post them now. + */ + if (0 != lock->notified.length) { + md_UnlockAndPostNotifies(lock, thred, cv); + } else { + AddThreadToCVWaitQueueInternal(thred, cv); + LeaveCriticalSection(&lock->mutex); + } + + /* Wait for notification or timeout; don't really care which */ + rv = WaitForSingleObject(thred->md.blocked_sema, msecs); + + EnterCriticalSection(&(lock->mutex)); + + PR_ASSERT(rv != WAIT_ABANDONED); + PR_ASSERT(rv != WAIT_FAILED); + PR_ASSERT(rv != WAIT_OBJECT_0 || thred->md.inCVWaitQueue == PR_FALSE); + + if (rv == WAIT_TIMEOUT) { + if (thred->md.inCVWaitQueue) { + PR_ASSERT((cv->waitTail != NULL && cv->waitHead != NULL) + || (cv->waitTail == NULL && cv->waitHead == NULL)); + cv->nwait -= 1; + thred->md.inCVWaitQueue = PR_FALSE; + if (cv->waitHead == thred) { + cv->waitHead = thred->md.next; + if (cv->waitHead == NULL) { + cv->waitTail = NULL; + } else { + cv->waitHead->md.prev = NULL; + } + } else { + PR_ASSERT(thred->md.prev != NULL); + thred->md.prev->md.next = thred->md.next; + if (thred->md.next != NULL) { + thred->md.next->md.prev = thred->md.prev; + } else { + PR_ASSERT(cv->waitTail == thred); + cv->waitTail = thred->md.prev; + } + } + thred->md.next = thred->md.prev = NULL; + } else { + /* + * This thread must have been notified, but the + * ReleaseSemaphore call happens after WaitForSingleObject + * times out. Wait on the semaphore again to make it + * non-signaled. We assume this wait won't take long. + */ + rv = WaitForSingleObject(thred->md.blocked_sema, INFINITE); + PR_ASSERT(rv == WAIT_OBJECT_0); + } + } + PR_ASSERT(thred->md.inCVWaitQueue == PR_FALSE); + return; +} /* --- end _PR_MD_WAIT_CV() --- */ + +void _PR_MD_NOTIFY_CV(_MDCVar *cv, _MDLock *lock) +{ + md_PostNotifyToCvar(cv, lock, PR_FALSE); + return; +} + +void _PR_MD_NOTIFYALL_CV(_MDCVar *cv, _MDLock *lock) +{ + md_PostNotifyToCvar(cv, lock, PR_TRUE); + return; +} + +typedef BOOL (WINAPI *INITIALIZECRITICALSECTIONEX)( + CRITICAL_SECTION *lpCriticalSection, + DWORD dwSpinCount, + DWORD Flags); + +static INITIALIZECRITICALSECTIONEX sInitializeCriticalSectionEx; + +void _PR_MD_INIT_LOCKS(void) +{ + /* + * Starting with Windows Vista, every CRITICAL_SECTION allocates an extra + * RTL_CRITICAL_SECTION_DEBUG object. Unfortunately, this debug object is + * not reclaimed by DeleteCriticalSection(), causing an apparent memory + * leak. This is a debugging "feature", not a bug. If we are running on + * Vista or later, use InitializeCriticalSectionEx() to allocate + * CRITICAL_SECTIONs without debug objects. + */ + HMODULE hKernel32 = GetModuleHandle("kernel32.dll"); + PR_ASSERT(hKernel32); + PR_ASSERT(!sInitializeCriticalSectionEx); + sInitializeCriticalSectionEx = (INITIALIZECRITICALSECTIONEX) + GetProcAddress(hKernel32, "InitializeCriticalSectionEx"); +} + +/* + * By default, CRITICAL_SECTIONs are initialized with a spin count of 0. + * Joe Duffy's "Concurrent Programming on Windows" book suggests 1500 is + * a "reasonable starting point". On single-processor systems, the spin + * count is ignored and the critical section spin count is set to 0. + */ +#define LOCK_SPIN_COUNT 1500 + +PRStatus _PR_MD_NEW_LOCK(_MDLock *lock) +{ + CRITICAL_SECTION *cs = &lock->mutex; + BOOL ok; + + if (sInitializeCriticalSectionEx) { + ok = sInitializeCriticalSectionEx(cs, LOCK_SPIN_COUNT, + CRITICAL_SECTION_NO_DEBUG_INFO); + } else { + ok = InitializeCriticalSectionAndSpinCount(cs, LOCK_SPIN_COUNT); + } + if (!ok) { + _PR_MD_MAP_DEFAULT_ERROR(GetLastError()); + return PR_FAILURE; + } + + lock->notified.length = 0; + lock->notified.link = NULL; + return PR_SUCCESS; +} + +void _PR_MD_UNLOCK(_MDLock *lock) +{ + if (0 != lock->notified.length) { + md_UnlockAndPostNotifies(lock, NULL, NULL); + } else { + LeaveCriticalSection(&lock->mutex); + } +} diff --git a/nsprpub/pr/src/md/windows/w95dllmain.c b/nsprpub/pr/src/md/windows/w95dllmain.c new file mode 100644 index 0000000000..c9ab87aec5 --- /dev/null +++ b/nsprpub/pr/src/md/windows/w95dllmain.c @@ -0,0 +1,40 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +/* + * The DLL entry point (DllMain) for NSPR. + * + * This is used to detach threads that were automatically attached by + * nspr. + */ + +#include <windows.h> +#include <primpl.h> + +BOOL WINAPI DllMain( + HINSTANCE hinstDLL, + DWORD fdwReason, + LPVOID lpvReserved) +{ + PRThread *me; + + switch (fdwReason) { + case DLL_PROCESS_ATTACH: + break; + case DLL_THREAD_ATTACH: + break; + case DLL_THREAD_DETACH: + if (_pr_initialized) { + me = _MD_GET_ATTACHED_THREAD(); + if ((me != NULL) && (me->flags & _PR_ATTACHED)) { + _PRI_DetachThread(); + } + } + break; + case DLL_PROCESS_DETACH: + break; + } + return TRUE; +} diff --git a/nsprpub/pr/src/md/windows/w95io.c b/nsprpub/pr/src/md/windows/w95io.c new file mode 100644 index 0000000000..2ad52e19ba --- /dev/null +++ b/nsprpub/pr/src/md/windows/w95io.c @@ -0,0 +1,1416 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +/* Windows 95 IO module + * + * Assumes synchronous I/O. + * + */ + +#include "primpl.h" +#include <direct.h> +#include <mbstring.h> +#ifdef MOZ_UNICODE +#include <wchar.h> +#endif /* MOZ_UNICODE */ + +struct _MDLock _pr_ioq_lock; + +/* + * NSPR-to-NT access right mapping table for files. + */ +static DWORD fileAccessTable[] = { + FILE_GENERIC_READ, + FILE_GENERIC_WRITE, + FILE_GENERIC_EXECUTE +}; + +/* + * NSPR-to-NT access right mapping table for directories. + */ +static DWORD dirAccessTable[] = { + FILE_GENERIC_READ, + FILE_GENERIC_WRITE|FILE_DELETE_CHILD, + FILE_GENERIC_EXECUTE +}; + +static PRBool IsPrevCharSlash(const char *str, const char *current); + +void +_PR_MD_INIT_IO() +{ + WORD WSAVersion = 0x0101; + WSADATA WSAData; + int err; + + err = WSAStartup( WSAVersion, &WSAData ); + PR_ASSERT(0 == err); + +#ifdef DEBUG + /* Doublecheck _pr_filetime_offset's hard-coded value is correct. */ + { + SYSTEMTIME systime; + union { + PRTime prt; + FILETIME ft; + } filetime; + BOOL rv; + + systime.wYear = 1970; + systime.wMonth = 1; + /* wDayOfWeek is ignored */ + systime.wDay = 1; + systime.wHour = 0; + systime.wMinute = 0; + systime.wSecond = 0; + systime.wMilliseconds = 0; + + rv = SystemTimeToFileTime(&systime, &filetime.ft); + PR_ASSERT(0 != rv); + PR_ASSERT(filetime.prt == _pr_filetime_offset); + } +#endif /* DEBUG */ + + _PR_NT_InitSids(); + + _PR_MD_InitSockets(); +} + +PRStatus +_PR_MD_WAIT(PRThread *thread, PRIntervalTime ticks) +{ + DWORD rv; + + PRUint32 msecs = (ticks == PR_INTERVAL_NO_TIMEOUT) ? + INFINITE : PR_IntervalToMilliseconds(ticks); + rv = WaitForSingleObject(thread->md.blocked_sema, msecs); + switch(rv) + { + case WAIT_OBJECT_0: + return PR_SUCCESS; + case WAIT_TIMEOUT: + _PR_THREAD_LOCK(thread); + if (thread->state == _PR_IO_WAIT) { + ; + } else { + if (thread->wait.cvar != NULL) { + thread->wait.cvar = NULL; + _PR_THREAD_UNLOCK(thread); + } else { + /* The CVAR was notified just as the timeout + * occurred. This led to us being notified twice. + * call WaitForSingleObject() to clear the semaphore. + */ + _PR_THREAD_UNLOCK(thread); + rv = WaitForSingleObject(thread->md.blocked_sema, 0); + PR_ASSERT(rv == WAIT_OBJECT_0); + } + } + return PR_SUCCESS; + default: + return PR_FAILURE; + } +} +PRStatus +_PR_MD_WAKEUP_WAITER(PRThread *thread) +{ + if ( _PR_IS_NATIVE_THREAD(thread) ) + { + if (ReleaseSemaphore(thread->md.blocked_sema, 1, NULL) == FALSE) { + return PR_FAILURE; + } + else { + return PR_SUCCESS; + } + } +} + + +/* --- FILE IO ----------------------------------------------------------- */ +/* + * _PR_MD_OPEN() -- Open a file + * + * returns: a fileHandle + * + * The NSPR open flags (osflags) are translated into flags for Win95 + * + * Mode seems to be passed in as a unix style file permissions argument + * as in 0666, in the case of opening the logFile. + * + */ +PROsfd +_PR_MD_OPEN(const char *name, PRIntn osflags, int mode) +{ + HANDLE file; + PRInt32 access = 0; + PRInt32 flags = 0; + PRInt32 flag6 = 0; + + if (osflags & PR_SYNC) { + flag6 = FILE_FLAG_WRITE_THROUGH; + } + + if (osflags & PR_RDONLY || osflags & PR_RDWR) { + access |= GENERIC_READ; + } + if (osflags & PR_WRONLY || osflags & PR_RDWR) { + access |= GENERIC_WRITE; + } + + if ( osflags & PR_CREATE_FILE && osflags & PR_EXCL ) { + flags = CREATE_NEW; + } + else if (osflags & PR_CREATE_FILE) { + if (osflags & PR_TRUNCATE) { + flags = CREATE_ALWAYS; + } + else { + flags = OPEN_ALWAYS; + } + } else { + if (osflags & PR_TRUNCATE) { + flags = TRUNCATE_EXISTING; + } + else { + flags = OPEN_EXISTING; + } + } + + file = CreateFileA(name, + access, + FILE_SHARE_READ|FILE_SHARE_WRITE, + NULL, + flags, + flag6, + NULL); + if (file == INVALID_HANDLE_VALUE) { + _PR_MD_MAP_OPEN_ERROR(GetLastError()); + return -1; + } + + return (PROsfd)file; +} + +PROsfd +_PR_MD_OPEN_FILE(const char *name, PRIntn osflags, int mode) +{ + HANDLE file; + PRInt32 access = 0; + PRInt32 flags = 0; + PRInt32 flag6 = 0; + SECURITY_ATTRIBUTES sa; + LPSECURITY_ATTRIBUTES lpSA = NULL; + PSECURITY_DESCRIPTOR pSD = NULL; + PACL pACL = NULL; + + if (osflags & PR_CREATE_FILE) { + if (_PR_NT_MakeSecurityDescriptorACL(mode, fileAccessTable, + &pSD, &pACL) == PR_SUCCESS) { + sa.nLength = sizeof(sa); + sa.lpSecurityDescriptor = pSD; + sa.bInheritHandle = FALSE; + lpSA = &sa; + } + } + + if (osflags & PR_SYNC) { + flag6 = FILE_FLAG_WRITE_THROUGH; + } + + if (osflags & PR_RDONLY || osflags & PR_RDWR) { + access |= GENERIC_READ; + } + if (osflags & PR_WRONLY || osflags & PR_RDWR) { + access |= GENERIC_WRITE; + } + + if ( osflags & PR_CREATE_FILE && osflags & PR_EXCL ) { + flags = CREATE_NEW; + } + else if (osflags & PR_CREATE_FILE) { + if (osflags & PR_TRUNCATE) { + flags = CREATE_ALWAYS; + } + else { + flags = OPEN_ALWAYS; + } + } else { + if (osflags & PR_TRUNCATE) { + flags = TRUNCATE_EXISTING; + } + else { + flags = OPEN_EXISTING; + } + } + + file = CreateFileA(name, + access, + FILE_SHARE_READ|FILE_SHARE_WRITE, + lpSA, + flags, + flag6, + NULL); + if (lpSA != NULL) { + _PR_NT_FreeSecurityDescriptorACL(pSD, pACL); + } + if (file == INVALID_HANDLE_VALUE) { + _PR_MD_MAP_OPEN_ERROR(GetLastError()); + return -1; + } + + return (PROsfd)file; +} + +PRInt32 +_PR_MD_READ(PRFileDesc *fd, void *buf, PRInt32 len) +{ + PRUint32 bytes; + int rv, err; + + rv = ReadFile((HANDLE)fd->secret->md.osfd, + (LPVOID)buf, + len, + &bytes, + NULL); + + if (rv == 0) + { + err = GetLastError(); + /* ERROR_HANDLE_EOF can only be returned by async io */ + PR_ASSERT(err != ERROR_HANDLE_EOF); + if (err == ERROR_BROKEN_PIPE) { + return 0; + } + else { + _PR_MD_MAP_READ_ERROR(err); + return -1; + } + } + return bytes; +} + +PRInt32 +_PR_MD_WRITE(PRFileDesc *fd, const void *buf, PRInt32 len) +{ + PROsfd f = fd->secret->md.osfd; + PRInt32 bytes; + int rv; + + rv = WriteFile((HANDLE)f, + buf, + len, + &bytes, + NULL ); + + if (rv == 0) + { + _PR_MD_MAP_WRITE_ERROR(GetLastError()); + return -1; + } + return bytes; +} /* --- end _PR_MD_WRITE() --- */ + +PROffset32 +_PR_MD_LSEEK(PRFileDesc *fd, PROffset32 offset, PRSeekWhence whence) +{ + DWORD moveMethod; + PROffset32 rv; + + switch (whence) { + case PR_SEEK_SET: + moveMethod = FILE_BEGIN; + break; + case PR_SEEK_CUR: + moveMethod = FILE_CURRENT; + break; + case PR_SEEK_END: + moveMethod = FILE_END; + break; + default: + PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0); + return -1; + } + + rv = SetFilePointer((HANDLE)fd->secret->md.osfd, offset, NULL, moveMethod); + + /* + * If the lpDistanceToMoveHigh argument (third argument) is + * NULL, SetFilePointer returns 0xffffffff on failure. + */ + if (-1 == rv) { + _PR_MD_MAP_LSEEK_ERROR(GetLastError()); + } + return rv; +} + +PROffset64 +_PR_MD_LSEEK64(PRFileDesc *fd, PROffset64 offset, PRSeekWhence whence) +{ + DWORD moveMethod; + LARGE_INTEGER li; + DWORD err; + + switch (whence) { + case PR_SEEK_SET: + moveMethod = FILE_BEGIN; + break; + case PR_SEEK_CUR: + moveMethod = FILE_CURRENT; + break; + case PR_SEEK_END: + moveMethod = FILE_END; + break; + default: + PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0); + return -1; + } + + li.QuadPart = offset; + li.LowPart = SetFilePointer((HANDLE)fd->secret->md.osfd, + li.LowPart, &li.HighPart, moveMethod); + + if (0xffffffff == li.LowPart && (err = GetLastError()) != NO_ERROR) { + _PR_MD_MAP_LSEEK_ERROR(err); + li.QuadPart = -1; + } + return li.QuadPart; +} + +/* + * This is documented to succeed on read-only files, but Win32's + * FlushFileBuffers functions fails with "access denied" in such a + * case. So we only signal an error if the error is *not* "access + * denied". + */ +PRInt32 +_PR_MD_FSYNC(PRFileDesc *fd) +{ + /* + * From the documentation: + * + * On Windows NT, the function FlushFileBuffers fails if hFile + * is a handle to console output. That is because console + * output is not buffered. The function returns FALSE, and + * GetLastError returns ERROR_INVALID_HANDLE. + * + * On the other hand, on Win95, it returns without error. I cannot + * assume that 0, 1, and 2 are console, because if someone closes + * System.out and then opens a file, they might get file descriptor + * 1. An error on *that* version of 1 should be reported, whereas + * an error on System.out (which was the original 1) should be + * ignored. So I use isatty() to ensure that such an error was due + * to this bogosity, and if it was, I ignore the error. + */ + + BOOL ok = FlushFileBuffers((HANDLE)fd->secret->md.osfd); + + if (!ok) { + DWORD err = GetLastError(); + if (err != ERROR_ACCESS_DENIED) { // from winerror.h + _PR_MD_MAP_FSYNC_ERROR(err); + return -1; + } + } + return 0; +} + +PRInt32 +_MD_CloseFile(PROsfd osfd) +{ + PRInt32 rv; + + rv = (CloseHandle((HANDLE)osfd))?0:-1; + if (rv == -1) { + _PR_MD_MAP_CLOSE_ERROR(GetLastError()); + } + return rv; +} + + +/* --- DIR IO ------------------------------------------------------------ */ +#define GetFileFromDIR(d) (d)->d_entry.cFileName +#define FileIsHidden(d) ((d)->d_entry.dwFileAttributes & FILE_ATTRIBUTE_HIDDEN) + +static void FlipSlashes(char *cp, size_t len) +{ + while (len-- > 0) { + if (cp[0] == '/') { + cp[0] = PR_DIRECTORY_SEPARATOR; + } + cp = _mbsinc(cp); + } +} /* end FlipSlashes() */ + + +/* +** +** Local implementations of standard Unix RTL functions which are not provided +** by the VC RTL. +** +*/ + +PRInt32 +_PR_MD_CLOSE_DIR(_MDDir *d) +{ + if ( d ) { + if (FindClose(d->d_hdl)) { + d->magic = (PRUint32)-1; + return 0; + } else { + _PR_MD_MAP_CLOSEDIR_ERROR(GetLastError()); + return -1; + } + } + PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0); + return -1; +} + + +PRStatus +_PR_MD_OPEN_DIR(_MDDir *d, const char *name) +{ + char filename[ MAX_PATH ]; + size_t len; + + len = strlen(name); + /* Need 5 bytes for \*.* and the trailing null byte. */ + if (len + 5 > MAX_PATH) { + PR_SetError(PR_NAME_TOO_LONG_ERROR, 0); + return PR_FAILURE; + } + strcpy(filename, name); + + /* + * If 'name' ends in a slash or backslash, do not append + * another backslash. + */ + if (IsPrevCharSlash(filename, filename + len)) { + len--; + } + strcpy(&filename[len], "\\*.*"); + FlipSlashes( filename, strlen(filename) ); + + d->d_hdl = FindFirstFileA( filename, &(d->d_entry) ); + if ( d->d_hdl == INVALID_HANDLE_VALUE ) { + _PR_MD_MAP_OPENDIR_ERROR(GetLastError()); + return PR_FAILURE; + } + d->firstEntry = PR_TRUE; + d->magic = _MD_MAGIC_DIR; + return PR_SUCCESS; +} + +char * +_PR_MD_READ_DIR(_MDDir *d, PRIntn flags) +{ + PRInt32 err; + BOOL rv; + char *fileName; + + if ( d ) { + while (1) { + if (d->firstEntry) { + d->firstEntry = PR_FALSE; + rv = 1; + } else { + rv = FindNextFileA(d->d_hdl, &(d->d_entry)); + } + if (rv == 0) { + break; + } + fileName = GetFileFromDIR(d); + if ( (flags & PR_SKIP_DOT) && + (fileName[0] == '.') && (fileName[1] == '\0')) { + continue; + } + if ( (flags & PR_SKIP_DOT_DOT) && + (fileName[0] == '.') && (fileName[1] == '.') && + (fileName[2] == '\0')) { + continue; + } + if ( (flags & PR_SKIP_HIDDEN) && FileIsHidden(d)) { + continue; + } + return fileName; + } + err = GetLastError(); + PR_ASSERT(NO_ERROR != err); + _PR_MD_MAP_READDIR_ERROR(err); + return NULL; + } + PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0); + return NULL; +} + +PRInt32 +_PR_MD_DELETE(const char *name) +{ + if (DeleteFileA(name)) { + return 0; + } else { + _PR_MD_MAP_DELETE_ERROR(GetLastError()); + return -1; + } +} + +void +_PR_FileTimeToPRTime(const FILETIME *filetime, PRTime *prtm) +{ + PR_ASSERT(sizeof(FILETIME) == sizeof(PRTime)); + CopyMemory(prtm, filetime, sizeof(PRTime)); +#if defined(__MINGW32__) + *prtm = (*prtm - _pr_filetime_offset) / 10LL; +#else + *prtm = (*prtm - _pr_filetime_offset) / 10i64; +#endif + +#ifdef DEBUG + /* Doublecheck our calculation. */ + { + SYSTEMTIME systime; + PRExplodedTime etm; + PRTime cmp; /* for comparison */ + BOOL rv; + + rv = FileTimeToSystemTime(filetime, &systime); + PR_ASSERT(0 != rv); + + /* + * PR_ImplodeTime ignores wday and yday. + */ + etm.tm_usec = systime.wMilliseconds * PR_USEC_PER_MSEC; + etm.tm_sec = systime.wSecond; + etm.tm_min = systime.wMinute; + etm.tm_hour = systime.wHour; + etm.tm_mday = systime.wDay; + etm.tm_month = systime.wMonth - 1; + etm.tm_year = systime.wYear; + /* + * It is not well-documented what time zone the FILETIME's + * are in. WIN32_FIND_DATA is documented to be in UTC (GMT). + * But BY_HANDLE_FILE_INFORMATION is unclear about this. + * By our best judgement, we assume that FILETIME is in UTC. + */ + etm.tm_params.tp_gmt_offset = 0; + etm.tm_params.tp_dst_offset = 0; + cmp = PR_ImplodeTime(&etm); + + /* + * SYSTEMTIME is in milliseconds precision, so we convert PRTime's + * microseconds to milliseconds before doing the comparison. + */ + PR_ASSERT((cmp / PR_USEC_PER_MSEC) == (*prtm / PR_USEC_PER_MSEC)); + } +#endif /* DEBUG */ +} + +PRInt32 +_PR_MD_STAT(const char *fn, struct stat *info) +{ + PRInt32 rv; + + rv = _stat(fn, (struct _stat *)info); + if (-1 == rv) { + /* + * Check for MSVC runtime library _stat() bug. + * (It's really a bug in FindFirstFile().) + * If a pathname ends in a backslash or slash, + * e.g., c:\temp\ or c:/temp/, _stat() will fail. + * Note: a pathname ending in a slash (e.g., c:/temp/) + * can be handled by _stat() on NT but not on Win95. + * + * We remove the backslash or slash at the end and + * try again. + */ + + size_t len = strlen(fn); + if (len > 0 && len <= _MAX_PATH + && IsPrevCharSlash(fn, fn + len)) { + char newfn[_MAX_PATH + 1]; + + strcpy(newfn, fn); + newfn[len - 1] = '\0'; + rv = _stat(newfn, (struct _stat *)info); + } + } + + if (-1 == rv) { + _PR_MD_MAP_STAT_ERROR(errno); + } + return rv; +} + +#define _PR_IS_SLASH(ch) ((ch) == '/' || (ch) == '\\') + +static PRBool +IsPrevCharSlash(const char *str, const char *current) +{ + const char *prev; + + if (str >= current) { + return PR_FALSE; + } + prev = _mbsdec(str, current); + return (prev == current - 1) && _PR_IS_SLASH(*prev); +} + +/* + * IsRootDirectory -- + * + * Return PR_TRUE if the pathname 'fn' is a valid root directory, + * else return PR_FALSE. The char buffer pointed to by 'fn' must + * be writable. During the execution of this function, the contents + * of the buffer pointed to by 'fn' may be modified, but on return + * the original contents will be restored. 'buflen' is the size of + * the buffer pointed to by 'fn'. + * + * Root directories come in three formats: + * 1. / or \, meaning the root directory of the current drive. + * 2. C:/ or C:\, where C is a drive letter. + * 3. \\<server name>\<share point name>\ or + * \\<server name>\<share point name>, meaning the root directory + * of a UNC (Universal Naming Convention) name. + */ + +static PRBool +IsRootDirectory(char *fn, size_t buflen) +{ + char *p; + PRBool slashAdded = PR_FALSE; + PRBool rv = PR_FALSE; + + if (_PR_IS_SLASH(fn[0]) && fn[1] == '\0') { + return PR_TRUE; + } + + if (isalpha(fn[0]) && fn[1] == ':' && _PR_IS_SLASH(fn[2]) + && fn[3] == '\0') { + rv = GetDriveType(fn) > 1 ? PR_TRUE : PR_FALSE; + return rv; + } + + /* The UNC root directory */ + + if (_PR_IS_SLASH(fn[0]) && _PR_IS_SLASH(fn[1])) { + /* The 'server' part should have at least one character. */ + p = &fn[2]; + if (*p == '\0' || _PR_IS_SLASH(*p)) { + return PR_FALSE; + } + + /* look for the next slash */ + do { + p = _mbsinc(p); + } while (*p != '\0' && !_PR_IS_SLASH(*p)); + if (*p == '\0') { + return PR_FALSE; + } + + /* The 'share' part should have at least one character. */ + p++; + if (*p == '\0' || _PR_IS_SLASH(*p)) { + return PR_FALSE; + } + + /* look for the final slash */ + do { + p = _mbsinc(p); + } while (*p != '\0' && !_PR_IS_SLASH(*p)); + if (_PR_IS_SLASH(*p) && p[1] != '\0') { + return PR_FALSE; + } + if (*p == '\0') { + /* + * GetDriveType() doesn't work correctly if the + * path is of the form \\server\share, so we add + * a final slash temporarily. + */ + if ((p + 1) < (fn + buflen)) { + *p++ = '\\'; + *p = '\0'; + slashAdded = PR_TRUE; + } else { + return PR_FALSE; /* name too long */ + } + } + rv = GetDriveType(fn) > 1 ? PR_TRUE : PR_FALSE; + /* restore the 'fn' buffer */ + if (slashAdded) { + *--p = '\0'; + } + } + return rv; +} + +PRInt32 +_PR_MD_GETFILEINFO64(const char *fn, PRFileInfo64 *info) +{ + WIN32_FILE_ATTRIBUTE_DATA findFileData; + BOOL rv; + + if (NULL == fn || '\0' == *fn) { + PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0); + return -1; + } + + rv = GetFileAttributesEx(fn, GetFileExInfoStandard, &findFileData); + if (!rv) { + _PR_MD_MAP_OPENDIR_ERROR(GetLastError()); + return -1; + } + + if (findFileData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) { + info->type = PR_FILE_DIRECTORY; + } else { + info->type = PR_FILE_FILE; + } + + info->size = findFileData.nFileSizeHigh; + info->size = (info->size << 32) + findFileData.nFileSizeLow; + + _PR_FileTimeToPRTime(&findFileData.ftLastWriteTime, &info->modifyTime); + + if (0 == findFileData.ftCreationTime.dwLowDateTime && + 0 == findFileData.ftCreationTime.dwHighDateTime) { + info->creationTime = info->modifyTime; + } else { + _PR_FileTimeToPRTime(&findFileData.ftCreationTime, + &info->creationTime); + } + + return 0; +} + +PRInt32 +_PR_MD_GETFILEINFO(const char *fn, PRFileInfo *info) +{ + PRFileInfo64 info64; + PRInt32 rv = _PR_MD_GETFILEINFO64(fn, &info64); + if (0 == rv) + { + info->type = info64.type; + info->size = (PRUint32) info64.size; + info->modifyTime = info64.modifyTime; + info->creationTime = info64.creationTime; + } + return rv; +} + +PRInt32 +_PR_MD_GETOPENFILEINFO64(const PRFileDesc *fd, PRFileInfo64 *info) +{ + int rv; + + BY_HANDLE_FILE_INFORMATION hinfo; + + rv = GetFileInformationByHandle((HANDLE)fd->secret->md.osfd, &hinfo); + if (rv == FALSE) { + _PR_MD_MAP_FSTAT_ERROR(GetLastError()); + return -1; + } + + if (hinfo.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) { + info->type = PR_FILE_DIRECTORY; + } + else { + info->type = PR_FILE_FILE; + } + + info->size = hinfo.nFileSizeHigh; + info->size = (info->size << 32) + hinfo.nFileSizeLow; + + _PR_FileTimeToPRTime(&hinfo.ftLastWriteTime, &(info->modifyTime) ); + _PR_FileTimeToPRTime(&hinfo.ftCreationTime, &(info->creationTime) ); + + return 0; +} + +PRInt32 +_PR_MD_GETOPENFILEINFO(const PRFileDesc *fd, PRFileInfo *info) +{ + PRFileInfo64 info64; + int rv = _PR_MD_GETOPENFILEINFO64(fd, &info64); + if (0 == rv) + { + info->type = info64.type; + info->modifyTime = info64.modifyTime; + info->creationTime = info64.creationTime; + LL_L2I(info->size, info64.size); + } + return rv; +} + +PRStatus +_PR_MD_SET_FD_INHERITABLE(PRFileDesc *fd, PRBool inheritable) +{ + BOOL rv; + + /* + * The SetHandleInformation function fails with the + * ERROR_CALL_NOT_IMPLEMENTED error on Win95. + */ + rv = SetHandleInformation( + (HANDLE)fd->secret->md.osfd, + HANDLE_FLAG_INHERIT, + inheritable ? HANDLE_FLAG_INHERIT : 0); + if (0 == rv) { + _PR_MD_MAP_DEFAULT_ERROR(GetLastError()); + return PR_FAILURE; + } + return PR_SUCCESS; +} + +void +_PR_MD_INIT_FD_INHERITABLE(PRFileDesc *fd, PRBool imported) +{ + if (imported) { + fd->secret->inheritable = _PR_TRI_UNKNOWN; + } else { + fd->secret->inheritable = _PR_TRI_FALSE; + } +} + +void +_PR_MD_QUERY_FD_INHERITABLE(PRFileDesc *fd) +{ + DWORD flags; + + PR_ASSERT(_PR_TRI_UNKNOWN == fd->secret->inheritable); + if (GetHandleInformation((HANDLE)fd->secret->md.osfd, &flags)) { + if (flags & HANDLE_FLAG_INHERIT) { + fd->secret->inheritable = _PR_TRI_TRUE; + } else { + fd->secret->inheritable = _PR_TRI_FALSE; + } + } +} + +PRInt32 +_PR_MD_RENAME(const char *from, const char *to) +{ + /* Does this work with dot-relative pathnames? */ + if (MoveFileA(from, to)) { + return 0; + } else { + _PR_MD_MAP_RENAME_ERROR(GetLastError()); + return -1; + } +} + +PRInt32 +_PR_MD_ACCESS(const char *name, PRAccessHow how) +{ + PRInt32 rv; + switch (how) { + case PR_ACCESS_WRITE_OK: + rv = _access(name, 02); + break; + case PR_ACCESS_READ_OK: + rv = _access(name, 04); + break; + case PR_ACCESS_EXISTS: + return _access(name, 00); + break; + default: + PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0); + return -1; + } + if (rv < 0) { + _PR_MD_MAP_ACCESS_ERROR(errno); + } + return rv; +} + +PRInt32 +_PR_MD_MKDIR(const char *name, PRIntn mode) +{ + /* XXXMB - how to translate the "mode"??? */ + if (CreateDirectoryA(name, NULL)) { + return 0; + } else { + _PR_MD_MAP_MKDIR_ERROR(GetLastError()); + return -1; + } +} + +PRInt32 +_PR_MD_MAKE_DIR(const char *name, PRIntn mode) +{ + BOOL rv; + SECURITY_ATTRIBUTES sa; + LPSECURITY_ATTRIBUTES lpSA = NULL; + PSECURITY_DESCRIPTOR pSD = NULL; + PACL pACL = NULL; + + if (_PR_NT_MakeSecurityDescriptorACL(mode, dirAccessTable, + &pSD, &pACL) == PR_SUCCESS) { + sa.nLength = sizeof(sa); + sa.lpSecurityDescriptor = pSD; + sa.bInheritHandle = FALSE; + lpSA = &sa; + } + rv = CreateDirectoryA(name, lpSA); + if (lpSA != NULL) { + _PR_NT_FreeSecurityDescriptorACL(pSD, pACL); + } + if (rv) { + return 0; + } else { + _PR_MD_MAP_MKDIR_ERROR(GetLastError()); + return -1; + } +} + +PRInt32 +_PR_MD_RMDIR(const char *name) +{ + if (RemoveDirectoryA(name)) { + return 0; + } else { + _PR_MD_MAP_RMDIR_ERROR(GetLastError()); + return -1; + } +} + +PRStatus +_PR_MD_LOCKFILE(PROsfd f) +{ + PRStatus rc = PR_SUCCESS; + DWORD rv; + + rv = LockFile( (HANDLE)f, + 0l, 0l, + 0x0l, 0xffffffffl ); + if ( rv == 0 ) { + DWORD err = GetLastError(); + _PR_MD_MAP_DEFAULT_ERROR(err); + PR_LOG( _pr_io_lm, PR_LOG_ERROR, + ("_PR_MD_LOCKFILE() failed. Error: %d", err )); + rc = PR_FAILURE; + } + + return rc; +} /* end _PR_MD_LOCKFILE() */ + +PRStatus +_PR_MD_TLOCKFILE(PROsfd f) +{ + PR_SetError( PR_NOT_IMPLEMENTED_ERROR, 0 ); + return PR_FAILURE; +} /* end _PR_MD_TLOCKFILE() */ + + +PRStatus +_PR_MD_UNLOCKFILE(PROsfd f) +{ + PRInt32 rv; + + rv = UnlockFile( (HANDLE) f, + 0l, 0l, + 0x0l, 0xffffffffl ); + + if ( rv ) + { + return PR_SUCCESS; + } + else + { + _PR_MD_MAP_DEFAULT_ERROR(GetLastError()); + return PR_FAILURE; + } +} /* end _PR_MD_UNLOCKFILE() */ + +PRInt32 +_PR_MD_PIPEAVAILABLE(PRFileDesc *fd) +{ + if (NULL == fd) { + PR_SetError(PR_BAD_DESCRIPTOR_ERROR, 0); + } + else { + PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0); + } + return -1; +} + +#ifdef MOZ_UNICODE + +typedef HANDLE (WINAPI *CreateFileWFn) (LPCWSTR, DWORD, DWORD, LPSECURITY_ATTRIBUTES, DWORD, DWORD, HANDLE); +static CreateFileWFn createFileW = CreateFileW; +typedef HANDLE (WINAPI *FindFirstFileWFn) (LPCWSTR, LPWIN32_FIND_DATAW); +static FindFirstFileWFn findFirstFileW = FindFirstFileW; +typedef BOOL (WINAPI *FindNextFileWFn) (HANDLE, LPWIN32_FIND_DATAW); +static FindNextFileWFn findNextFileW = FindNextFileW; +typedef DWORD (WINAPI *GetFullPathNameWFn) (LPCWSTR, DWORD, LPWSTR, LPWSTR *); +static GetFullPathNameWFn getFullPathNameW = GetFullPathNameW; +typedef UINT (WINAPI *GetDriveTypeWFn) (LPCWSTR); +static GetDriveTypeWFn getDriveTypeW = GetDriveTypeW; + +#endif /* MOZ_UNICODE */ + +#ifdef MOZ_UNICODE + +/* ================ UTF16 Interfaces ================================ */ +static void FlipSlashesW(PRUnichar *cp, size_t len) +{ + while (len-- > 0) { + if (cp[0] == L'/') { + cp[0] = L'\\'; + } + cp++; + } +} /* end FlipSlashesW() */ + +PROsfd +_PR_MD_OPEN_FILE_UTF16(const PRUnichar *name, PRIntn osflags, int mode) +{ + HANDLE file; + PRInt32 access = 0; + PRInt32 flags = 0; + PRInt32 flag6 = 0; + SECURITY_ATTRIBUTES sa; + LPSECURITY_ATTRIBUTES lpSA = NULL; + PSECURITY_DESCRIPTOR pSD = NULL; + PACL pACL = NULL; + + if (osflags & PR_CREATE_FILE) { + if (_PR_NT_MakeSecurityDescriptorACL(mode, fileAccessTable, + &pSD, &pACL) == PR_SUCCESS) { + sa.nLength = sizeof(sa); + sa.lpSecurityDescriptor = pSD; + sa.bInheritHandle = FALSE; + lpSA = &sa; + } + } + + if (osflags & PR_SYNC) { + flag6 = FILE_FLAG_WRITE_THROUGH; + } + + if (osflags & PR_RDONLY || osflags & PR_RDWR) { + access |= GENERIC_READ; + } + if (osflags & PR_WRONLY || osflags & PR_RDWR) { + access |= GENERIC_WRITE; + } + + if ( osflags & PR_CREATE_FILE && osflags & PR_EXCL ) { + flags = CREATE_NEW; + } + else if (osflags & PR_CREATE_FILE) { + if (osflags & PR_TRUNCATE) { + flags = CREATE_ALWAYS; + } + else { + flags = OPEN_ALWAYS; + } + } else { + if (osflags & PR_TRUNCATE) { + flags = TRUNCATE_EXISTING; + } + else { + flags = OPEN_EXISTING; + } + } + + file = createFileW(name, + access, + FILE_SHARE_READ|FILE_SHARE_WRITE, + lpSA, + flags, + flag6, + NULL); + if (lpSA != NULL) { + _PR_NT_FreeSecurityDescriptorACL(pSD, pACL); + } + if (file == INVALID_HANDLE_VALUE) { + _PR_MD_MAP_OPEN_ERROR(GetLastError()); + return -1; + } + + return (PROsfd)file; +} + +PRStatus +_PR_MD_OPEN_DIR_UTF16(_MDDirUTF16 *d, const PRUnichar *name) +{ + PRUnichar filename[ MAX_PATH ]; + int len; + + len = wcslen(name); + /* Need 5 bytes for \*.* and the trailing null byte. */ + if (len + 5 > MAX_PATH) { + PR_SetError(PR_NAME_TOO_LONG_ERROR, 0); + return PR_FAILURE; + } + wcscpy(filename, name); + + /* + * If 'name' ends in a slash or backslash, do not append + * another backslash. + */ + if (filename[len - 1] == L'/' || filename[len - 1] == L'\\') { + len--; + } + wcscpy(&filename[len], L"\\*.*"); + FlipSlashesW( filename, wcslen(filename) ); + + d->d_hdl = findFirstFileW( filename, &(d->d_entry) ); + if ( d->d_hdl == INVALID_HANDLE_VALUE ) { + _PR_MD_MAP_OPENDIR_ERROR(GetLastError()); + return PR_FAILURE; + } + d->firstEntry = PR_TRUE; + d->magic = _MD_MAGIC_DIR; + return PR_SUCCESS; +} + +PRUnichar * +_PR_MD_READ_DIR_UTF16(_MDDirUTF16 *d, PRIntn flags) +{ + PRInt32 err; + BOOL rv; + PRUnichar *fileName; + + if ( d ) { + while (1) { + if (d->firstEntry) { + d->firstEntry = PR_FALSE; + rv = 1; + } else { + rv = findNextFileW(d->d_hdl, &(d->d_entry)); + } + if (rv == 0) { + break; + } + fileName = GetFileFromDIR(d); + if ( (flags & PR_SKIP_DOT) && + (fileName[0] == L'.') && (fileName[1] == L'\0')) { + continue; + } + if ( (flags & PR_SKIP_DOT_DOT) && + (fileName[0] == L'.') && (fileName[1] == L'.') && + (fileName[2] == L'\0')) { + continue; + } + if ( (flags & PR_SKIP_HIDDEN) && FileIsHidden(d)) { + continue; + } + return fileName; + } + err = GetLastError(); + PR_ASSERT(NO_ERROR != err); + _PR_MD_MAP_READDIR_ERROR(err); + return NULL; + } + PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0); + return NULL; +} + +PRInt32 +_PR_MD_CLOSE_DIR_UTF16(_MDDirUTF16 *d) +{ + if ( d ) { + if (FindClose(d->d_hdl)) { + d->magic = (PRUint32)-1; + return 0; + } else { + _PR_MD_MAP_CLOSEDIR_ERROR(GetLastError()); + return -1; + } + } + PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0); + return -1; +} + +#define _PR_IS_W_SLASH(ch) ((ch) == L'/' || (ch) == L'\\') + +/* + * IsRootDirectoryW -- + * + * Return PR_TRUE if the pathname 'fn' is a valid root directory, + * else return PR_FALSE. The PRUnichar buffer pointed to by 'fn' must + * be writable. During the execution of this function, the contents + * of the buffer pointed to by 'fn' may be modified, but on return + * the original contents will be restored. 'buflen' is the size of + * the buffer pointed to by 'fn', in PRUnichars. + * + * Root directories come in three formats: + * 1. / or \, meaning the root directory of the current drive. + * 2. C:/ or C:\, where C is a drive letter. + * 3. \\<server name>\<share point name>\ or + * \\<server name>\<share point name>, meaning the root directory + * of a UNC (Universal Naming Convention) name. + */ + +static PRBool +IsRootDirectoryW(PRUnichar *fn, size_t buflen) +{ + PRUnichar *p; + PRBool slashAdded = PR_FALSE; + PRBool rv = PR_FALSE; + + if (_PR_IS_W_SLASH(fn[0]) && fn[1] == L'\0') { + return PR_TRUE; + } + + if (iswalpha(fn[0]) && fn[1] == L':' && _PR_IS_W_SLASH(fn[2]) + && fn[3] == L'\0') { + rv = getDriveTypeW(fn) > 1 ? PR_TRUE : PR_FALSE; + return rv; + } + + /* The UNC root directory */ + + if (_PR_IS_W_SLASH(fn[0]) && _PR_IS_W_SLASH(fn[1])) { + /* The 'server' part should have at least one character. */ + p = &fn[2]; + if (*p == L'\0' || _PR_IS_W_SLASH(*p)) { + return PR_FALSE; + } + + /* look for the next slash */ + do { + p++; + } while (*p != L'\0' && !_PR_IS_W_SLASH(*p)); + if (*p == L'\0') { + return PR_FALSE; + } + + /* The 'share' part should have at least one character. */ + p++; + if (*p == L'\0' || _PR_IS_W_SLASH(*p)) { + return PR_FALSE; + } + + /* look for the final slash */ + do { + p++; + } while (*p != L'\0' && !_PR_IS_W_SLASH(*p)); + if (_PR_IS_W_SLASH(*p) && p[1] != L'\0') { + return PR_FALSE; + } + if (*p == L'\0') { + /* + * GetDriveType() doesn't work correctly if the + * path is of the form \\server\share, so we add + * a final slash temporarily. + */ + if ((p + 1) < (fn + buflen)) { + *p++ = L'\\'; + *p = L'\0'; + slashAdded = PR_TRUE; + } else { + return PR_FALSE; /* name too long */ + } + } + rv = getDriveTypeW(fn) > 1 ? PR_TRUE : PR_FALSE; + /* restore the 'fn' buffer */ + if (slashAdded) { + *--p = L'\0'; + } + } + return rv; +} + +PRInt32 +_PR_MD_GETFILEINFO64_UTF16(const PRUnichar *fn, PRFileInfo64 *info) +{ + HANDLE hFindFile; + WIN32_FIND_DATAW findFileData; + PRUnichar pathbuf[MAX_PATH + 1]; + + if (NULL == fn || L'\0' == *fn) { + PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0); + return -1; + } + + /* + * FindFirstFile() expands wildcard characters. So + * we make sure the pathname contains no wildcard. + */ + if (NULL != wcspbrk(fn, L"?*")) { + PR_SetError(PR_FILE_NOT_FOUND_ERROR, 0); + return -1; + } + + hFindFile = findFirstFileW(fn, &findFileData); + if (INVALID_HANDLE_VALUE == hFindFile) { + DWORD len; + PRUnichar *filePart; + + /* + * FindFirstFile() does not work correctly on root directories. + * It also doesn't work correctly on a pathname that ends in a + * slash. So we first check to see if the pathname specifies a + * root directory. If not, and if the pathname ends in a slash, + * we remove the final slash and try again. + */ + + /* + * If the pathname does not contain ., \, and /, it cannot be + * a root directory or a pathname that ends in a slash. + */ + if (NULL == wcspbrk(fn, L".\\/")) { + _PR_MD_MAP_OPENDIR_ERROR(GetLastError()); + return -1; + } + len = getFullPathNameW(fn, sizeof(pathbuf)/sizeof(pathbuf[0]), pathbuf, + &filePart); + if (0 == len) { + _PR_MD_MAP_OPENDIR_ERROR(GetLastError()); + return -1; + } + if (len > sizeof(pathbuf)/sizeof(pathbuf[0])) { + PR_SetError(PR_NAME_TOO_LONG_ERROR, 0); + return -1; + } + if (IsRootDirectoryW(pathbuf, sizeof(pathbuf)/sizeof(pathbuf[0]))) { + info->type = PR_FILE_DIRECTORY; + info->size = 0; + /* + * These timestamps don't make sense for root directories. + */ + info->modifyTime = 0; + info->creationTime = 0; + return 0; + } + if (!_PR_IS_W_SLASH(pathbuf[len - 1])) { + _PR_MD_MAP_OPENDIR_ERROR(GetLastError()); + return -1; + } else { + pathbuf[len - 1] = L'\0'; + hFindFile = findFirstFileW(pathbuf, &findFileData); + if (INVALID_HANDLE_VALUE == hFindFile) { + _PR_MD_MAP_OPENDIR_ERROR(GetLastError()); + return -1; + } + } + } + + FindClose(hFindFile); + + if (findFileData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) { + info->type = PR_FILE_DIRECTORY; + } else { + info->type = PR_FILE_FILE; + } + + info->size = findFileData.nFileSizeHigh; + info->size = (info->size << 32) + findFileData.nFileSizeLow; + + _PR_FileTimeToPRTime(&findFileData.ftLastWriteTime, &info->modifyTime); + + if (0 == findFileData.ftCreationTime.dwLowDateTime && + 0 == findFileData.ftCreationTime.dwHighDateTime) { + info->creationTime = info->modifyTime; + } else { + _PR_FileTimeToPRTime(&findFileData.ftCreationTime, + &info->creationTime); + } + + return 0; +} +/* ================ end of UTF16 Interfaces ================================ */ +#endif /* MOZ_UNICODE */ diff --git a/nsprpub/pr/src/md/windows/w95sock.c b/nsprpub/pr/src/md/windows/w95sock.c new file mode 100644 index 0000000000..abe462fe02 --- /dev/null +++ b/nsprpub/pr/src/md/windows/w95sock.c @@ -0,0 +1,851 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +/* Win95 Sockets module + * + */ + +#if defined(_WIN64) +#include <winsock2.h> +#endif +#include "primpl.h" + +#define READ_FD 1 +#define WRITE_FD 2 +#define CONNECT_FD 3 + +static PRInt32 socket_io_wait( + PROsfd osfd, + PRInt32 fd_type, + PRIntervalTime timeout); + + +/* --- SOCKET IO --------------------------------------------------------- */ + +static PRBool socketFixInet6RcvBuf = PR_FALSE; + +void _PR_MD_InitSockets(void) +{ + OSVERSIONINFO osvi; + + memset(&osvi, 0, sizeof(osvi)); + osvi.dwOSVersionInfoSize = sizeof(osvi); + GetVersionEx(&osvi); + + if (osvi.dwMajorVersion == 5 && osvi.dwMinorVersion == 1) + { + /* if Windows XP (32-bit) */ + socketFixInet6RcvBuf = PR_TRUE; + } +} + +void _PR_MD_CleanupSockets(void) +{ + socketFixInet6RcvBuf = PR_FALSE; +} + +PROsfd +_PR_MD_SOCKET(int af, int type, int flags) +{ + SOCKET sock; + u_long one = 1; + + sock = socket(af, type, flags); + + if (sock == INVALID_SOCKET ) + { + _PR_MD_MAP_SOCKET_ERROR(WSAGetLastError()); + return (PROsfd)sock; + } + + /* + ** Make the socket Non-Blocking + */ + if (ioctlsocket( sock, FIONBIO, &one) != 0) + { + PR_SetError(PR_UNKNOWN_ERROR, WSAGetLastError()); + closesocket(sock); + return -1; + } + + if (af == AF_INET6 && socketFixInet6RcvBuf) + { + int bufsize; + int len = sizeof(bufsize); + int rv; + + /* Windows XP 32-bit returns an error on getpeername() for AF_INET6 + * sockets if the receive buffer size is greater than 65535 before + * the connection is initiated. The default receive buffer size may + * be 128000 so fix it here to always be <= 65535. See bug 513659 + * and IBM DB2 support technote "Receive/Send IPv6 Socket Size + * Problem in Windows XP SP2 & SP3". + */ + rv = getsockopt(sock, SOL_SOCKET, SO_RCVBUF, (char*)&bufsize, &len); + if (rv == 0 && bufsize > 65535) + { + bufsize = 65535; + setsockopt(sock, SOL_SOCKET, SO_RCVBUF, (char*)&bufsize, len); + } + } + + return (PROsfd)sock; +} + +/* +** _MD_CloseSocket() -- Close a socket +** +*/ +PRInt32 +_MD_CloseSocket(PROsfd osfd) +{ + PRInt32 rv; + + rv = closesocket((SOCKET) osfd ); + if (rv < 0) { + _PR_MD_MAP_CLOSE_ERROR(WSAGetLastError()); + } + + return rv; +} + +PRInt32 +_MD_SocketAvailable(PRFileDesc *fd) +{ + PRInt32 result; + + if (ioctlsocket(fd->secret->md.osfd, FIONREAD, &result) < 0) { + PR_SetError(PR_BAD_DESCRIPTOR_ERROR, WSAGetLastError()); + return -1; + } + return result; +} + +PROsfd _MD_Accept( + PRFileDesc *fd, + PRNetAddr *raddr, + PRUint32 *rlen, + PRIntervalTime timeout ) +{ + PROsfd osfd = fd->secret->md.osfd; + SOCKET sock; + PRInt32 rv, err; + + while ((sock = accept(osfd, (struct sockaddr *) raddr, rlen)) == -1) + { + err = WSAGetLastError(); + if ((err == WSAEWOULDBLOCK) && (!fd->secret->nonblocking)) + { + if ((rv = socket_io_wait(osfd, READ_FD, timeout)) < 0) + { + break; + } + } + else + { + _PR_MD_MAP_ACCEPT_ERROR(err); + break; + } + } + return(sock); +} /* end _MD_accept() */ + +PRInt32 +_PR_MD_CONNECT(PRFileDesc *fd, const PRNetAddr *addr, PRUint32 addrlen, + PRIntervalTime timeout) +{ + PROsfd osfd = fd->secret->md.osfd; + PRInt32 rv; + int err; + + if ((rv = connect(osfd, (struct sockaddr *) addr, addrlen)) == -1) + { + err = WSAGetLastError(); + if ((!fd->secret->nonblocking) && (err == WSAEWOULDBLOCK)) + { + rv = socket_io_wait(osfd, CONNECT_FD, timeout); + if ( rv < 0 ) + { + return(-1); + } + else + { + PR_ASSERT(rv > 0); + /* it's connected */ + return(0); + } + } + _PR_MD_MAP_CONNECT_ERROR(err); + } + return rv; +} + +PRInt32 +_PR_MD_BIND(PRFileDesc *fd, const PRNetAddr *addr, PRUint32 addrlen) +{ + PRInt32 rv; + + rv = bind(fd->secret->md.osfd, (const struct sockaddr *)&(addr->inet), addrlen); + + if (rv == SOCKET_ERROR) { + _PR_MD_MAP_BIND_ERROR(WSAGetLastError()); + return -1; + } + + return 0; +} + +PRInt32 +_PR_MD_LISTEN(PRFileDesc *fd, PRIntn backlog) +{ + PRInt32 rv; + + rv = listen(fd->secret->md.osfd, backlog); + + if (rv == SOCKET_ERROR) { + _PR_MD_MAP_DEFAULT_ERROR(WSAGetLastError()); + return -1; + } + + return 0; +} + +PRInt32 +_PR_MD_RECV(PRFileDesc *fd, void *buf, PRInt32 amount, PRIntn flags, + PRIntervalTime timeout) +{ + PROsfd osfd = fd->secret->md.osfd; + PRInt32 rv, err; + int osflags; + + if (0 == flags) { + osflags = 0; + } else { + PR_ASSERT(PR_MSG_PEEK == flags); + osflags = MSG_PEEK; + } + while ((rv = recv( osfd, buf, amount, osflags)) == -1) + { + if (((err = WSAGetLastError()) == WSAEWOULDBLOCK) + && (!fd->secret->nonblocking)) + { + rv = socket_io_wait(osfd, READ_FD, timeout); + if ( rv < 0 ) + { + return -1; + } + } + else + { + _PR_MD_MAP_RECV_ERROR(err); + break; + } + } /* end while() */ + return(rv); +} + +PRInt32 +_PR_MD_SEND(PRFileDesc *fd, const void *buf, PRInt32 amount, PRIntn flags, + PRIntervalTime timeout) +{ + PROsfd osfd = fd->secret->md.osfd; + PRInt32 rv, err; + PRInt32 bytesSent = 0; + + while(bytesSent < amount ) + { + while ((rv = send( osfd, buf, amount, 0 )) == -1) + { + if (((err = WSAGetLastError()) == WSAEWOULDBLOCK) + && (!fd->secret->nonblocking)) + { + rv = socket_io_wait(osfd, WRITE_FD, timeout); + if ( rv < 0 ) + { + return -1; + } + } + else + { + _PR_MD_MAP_SEND_ERROR(err); + return -1; + } + } + bytesSent += rv; + if (fd->secret->nonblocking) + { + break; + } + if (bytesSent < amount) + { + rv = socket_io_wait(osfd, WRITE_FD, timeout); + if ( rv < 0 ) + { + return -1; + } + } + } + return bytesSent; +} + +PRInt32 +_PR_MD_SENDTO(PRFileDesc *fd, const void *buf, PRInt32 amount, PRIntn flags, + const PRNetAddr *addr, PRUint32 addrlen, PRIntervalTime timeout) +{ + PROsfd osfd = fd->secret->md.osfd; + PRInt32 rv, err; + PRInt32 bytesSent = 0; + + do { + while ((rv = sendto( osfd, buf, amount, 0, (struct sockaddr *) addr, + addrlen)) == -1) + { + if (((err = WSAGetLastError()) == WSAEWOULDBLOCK) + && (!fd->secret->nonblocking)) + { + rv = socket_io_wait(osfd, WRITE_FD, timeout); + if ( rv < 0 ) + { + return -1; + } + } + else + { + _PR_MD_MAP_SENDTO_ERROR(err); + return -1; + } + } + bytesSent += rv; + if (fd->secret->nonblocking) + { + break; + } + if (bytesSent < amount) + { + rv = socket_io_wait(osfd, WRITE_FD, timeout); + if (rv < 0) + { + return -1; + } + } + } while(bytesSent < amount); + return bytesSent; +} + +#if defined(_WIN64) + +static PRCallOnceType _pr_has_connectex_once; +typedef BOOL (PASCAL FAR * _pr_win_connectex_ptr)(_In_ SOCKET s, _In_reads_bytes_(namelen) const struct sockaddr FAR *name, _In_ int namelen, _In_reads_bytes_opt_(dwSendDataLength) PVOID lpSendBuffer, _In_ DWORD dwSendDataLength, _Out_ LPDWORD lpdwBytesSent, _Inout_ LPOVERLAPPED lpOverlapped); + +#ifndef WSAID_CONNECTEX +#define WSAID_CONNECTEX \ + {0x25a207b9,0xddf3,0x4660,{0x8e,0xe9,0x76,0xe5,0x8c,0x74,0x06,0x3e}} +#endif +#ifndef SIO_GET_EXTENSION_FUNCTION_POINTER +#define SIO_GET_EXTENSION_FUNCTION_POINTER 0xC8000006 +#endif +#ifndef TCP_FASTOPEN +#define TCP_FASTOPEN 15 +#endif + +#ifndef SO_UPDATE_CONNECT_CONTEXT +#define SO_UPDATE_CONNECT_CONTEXT 0x7010 +#endif + +static _pr_win_connectex_ptr _pr_win_connectex = NULL; + +static PRStatus PR_CALLBACK _pr_set_connectex(void) +{ + _pr_win_connectex = NULL; + SOCKET sock; + PRInt32 dwBytes; + int rc; + + /* Dummy socket needed for WSAIoctl */ + sock = socket(AF_INET, SOCK_STREAM, 0); + if (sock == INVALID_SOCKET) { + return PR_SUCCESS; + } + + GUID guid = WSAID_CONNECTEX; + rc = WSAIoctl(sock, SIO_GET_EXTENSION_FUNCTION_POINTER, + &guid, sizeof(guid), + &_pr_win_connectex, sizeof(_pr_win_connectex), + &dwBytes, NULL, NULL); + if (rc != 0) { + _pr_win_connectex = NULL; + return PR_SUCCESS; + } + + rc = closesocket(sock); + return PR_SUCCESS; +} + +PRInt32 +_PR_MD_TCPSENDTO(PRFileDesc *fd, const void *buf, PRInt32 amount, PRIntn flags, + const PRNetAddr *addr, PRUint32 addrlen, PRIntervalTime timeout) +{ + if (!_fd_waiting_for_overlapped_done_lock) { + PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0); + return PR_FAILURE; + } + + if (PR_CallOnce(&_pr_has_connectex_once, _pr_set_connectex) != PR_SUCCESS) { + PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0); + return PR_FAILURE; + } + + if (_pr_win_connectex == NULL) { + PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0); + return PR_FAILURE; + } + + PROsfd osfd = fd->secret->md.osfd; + PRInt32 rv, err; + PRInt32 bytesSent = 0; + DWORD rvSent; + + BOOL option = 1; + rv = setsockopt((SOCKET)osfd, IPPROTO_TCP, TCP_FASTOPEN, (char*)&option, sizeof(option)); + if (rv != 0) { + err = WSAGetLastError(); + PR_LOG(_pr_io_lm, PR_LOG_MIN, + ("_PR_MD_TCPSENDTO error set opt TCP_FASTOPEN failed %d\n", err)); + if (err == WSAENOPROTOOPT) { + PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0); + } else { + _PR_MD_MAP_SETSOCKOPT_ERROR(err); + } + return -1; + } + + /* ConnectEx requires the socket to be initially bound. We will use INADDR_ANY. */ + PRNetAddr bindAddr; + memset(&bindAddr, 0, sizeof(bindAddr)); + bindAddr.raw.family = addr->raw.family; + + rv = bind((SOCKET)osfd, (const struct sockaddr *)&(bindAddr.inet), PR_NETADDR_SIZE(&bindAddr)); + if (rv != 0) { + err = WSAGetLastError(); + PR_LOG(_pr_io_lm, PR_LOG_MIN, + ("_PR_MD_TCPSENDTO error bind failed %d\n", err)); + _PR_MD_MAP_SETSOCKOPT_ERROR(err); + return -1; + } + + PR_LOG(_pr_io_lm, PR_LOG_MIN, + ("_PR_MD_TCPSENDTO calling _pr_win_connectex %d %p\n", amount, (char*)buf)); + + rvSent = 0; + memset(&fd->secret->ol, 0, sizeof(fd->secret->ol)); + /* ConnectEx return TRUE on a success and FALSE on an error. */ + if (_pr_win_connectex( (SOCKET)osfd, (struct sockaddr *) addr, + addrlen, buf, amount, + &rvSent, &fd->secret->ol) == TRUE) { + /* When ConnectEx is used, all previously set socket options and + * property are not enabled and to enable them + * SO_UPDATE_CONNECT_CONTEXT option need to be set. */ + rv = setsockopt((SOCKET)osfd, SOL_SOCKET, SO_UPDATE_CONNECT_CONTEXT, NULL, 0); + if (rv != 0) { + err = WSAGetLastError(); + PR_LOG(_pr_io_lm, PR_LOG_MIN, + ("_PR_MD_TCPSENDTO setting SO_UPDATE_CONNECT_CONTEXT failed %d\n", err)); + _PR_MD_MAP_SETSOCKOPT_ERROR(err); + return -1; + } + /* We imitate Linux here. SendTo will return number of bytes send but + * it can not return connection success at the same time, so we return + * number of bytes send and "connection success" will be return on the + * connectcontinue. */ + fd->secret->alreadyConnected = PR_TRUE; + return rvSent; + } else { + err = WSAGetLastError(); + PR_LOG(_pr_io_lm, PR_LOG_MIN, + ("_PR_MD_TCPSENDTO error _pr_win_connectex failed %d\n", err)); + if (err != ERROR_IO_PENDING) { + _PR_MD_MAP_CONNECT_ERROR(err); + return -1; + } else if (fd->secret->nonblocking) { + /* Remember that overlapped structure is set. We will need to get + * the final result of ConnectEx call. */ + fd->secret->overlappedActive = PR_TRUE; + + /* ConnectEx will copy supplied data to a internal buffer and send + * them during Fast Open or after connect. Therefore we can assumed + * this data already send. */ + if (amount > 0) { + return amount; + } + + _PR_MD_MAP_CONNECT_ERROR(WSAEWOULDBLOCK); + return -1; + } + // err is ERROR_IO_PENDING and socket is blocking, so query + // GetOverlappedResult. + err = ERROR_IO_INCOMPLETE; + while (err == ERROR_IO_INCOMPLETE) { + rv = socket_io_wait(osfd, WRITE_FD, timeout); + if ( rv < 0 ) { + return -1; + } + rv = GetOverlappedResult((HANDLE)osfd, &fd->secret->ol, &rvSent, FALSE); + if ( rv == TRUE ) { + return rvSent; + } else { + err = WSAGetLastError(); + if (err != ERROR_IO_INCOMPLETE) { + _PR_MD_MAP_CONNECT_ERROR(err); + return -1; + } + } + } + } + return -1; +} +#endif + +PRInt32 +_PR_MD_RECVFROM(PRFileDesc *fd, void *buf, PRInt32 amount, PRIntn flags, + PRNetAddr *addr, PRUint32 *addrlen, PRIntervalTime timeout) +{ + PROsfd osfd = fd->secret->md.osfd; + PRInt32 rv, err; + + while ((rv = recvfrom( osfd, buf, amount, 0, (struct sockaddr *) addr, + addrlen)) == -1) + { + if (((err = WSAGetLastError()) == WSAEWOULDBLOCK) + && (!fd->secret->nonblocking)) + { + rv = socket_io_wait(osfd, READ_FD, timeout); + if ( rv < 0) + { + return -1; + } + } + else + { + _PR_MD_MAP_RECVFROM_ERROR(err); + break; + } + } + return(rv); +} + +PRInt32 +_PR_MD_WRITEV(PRFileDesc *fd, const PRIOVec *iov, PRInt32 iov_size, PRIntervalTime timeout) +{ + int index; + int sent = 0; + int rv; + + for (index=0; index < iov_size; index++) + { + rv = _PR_MD_SEND(fd, iov[index].iov_base, iov[index].iov_len, 0, timeout); + if (rv > 0) { + sent += rv; + } + if ( rv != iov[index].iov_len ) + { + if (rv < 0) + { + if (fd->secret->nonblocking + && (PR_GetError() == PR_WOULD_BLOCK_ERROR) + && (sent > 0)) + { + return sent; + } + else + { + return -1; + } + } + /* Only a nonblocking socket can have partial sends */ + PR_ASSERT(fd->secret->nonblocking); + return sent; + } + } + return sent; +} + +PRInt32 +_PR_MD_SHUTDOWN(PRFileDesc *fd, PRIntn how) +{ + PRInt32 rv; + + rv = shutdown(fd->secret->md.osfd, how); + if (rv < 0) { + _PR_MD_MAP_SHUTDOWN_ERROR(WSAGetLastError()); + } + return rv; +} + +PRStatus +_PR_MD_GETSOCKNAME(PRFileDesc *fd, PRNetAddr *addr, PRUint32 *len) +{ + PRInt32 rv; + + rv = getsockname((SOCKET)fd->secret->md.osfd, (struct sockaddr *)addr, len); + if (rv==0) { + return PR_SUCCESS; + } else { + _PR_MD_MAP_GETSOCKNAME_ERROR(WSAGetLastError()); + return PR_FAILURE; + } +} + +PRStatus +_PR_MD_GETPEERNAME(PRFileDesc *fd, PRNetAddr *addr, PRUint32 *len) +{ + PRInt32 rv; + + rv = getpeername((SOCKET)fd->secret->md.osfd, (struct sockaddr *)addr, len); + if (rv==0) { + return PR_SUCCESS; + } else { + _PR_MD_MAP_GETPEERNAME_ERROR(WSAGetLastError()); + return PR_FAILURE; + } +} + +PRStatus +_PR_MD_GETSOCKOPT(PRFileDesc *fd, PRInt32 level, PRInt32 optname, char* optval, PRInt32* optlen) +{ + PRInt32 rv; + + rv = getsockopt((SOCKET)fd->secret->md.osfd, level, optname, optval, optlen); + if (rv==0) { + return PR_SUCCESS; + } else { + _PR_MD_MAP_GETSOCKOPT_ERROR(WSAGetLastError()); + return PR_FAILURE; + } +} + +PRStatus +_PR_MD_SETSOCKOPT(PRFileDesc *fd, PRInt32 level, PRInt32 optname, const char* optval, PRInt32 optlen) +{ + PRInt32 rv; + + rv = setsockopt((SOCKET)fd->secret->md.osfd, level, optname, optval, optlen); + if (rv==0) { + return PR_SUCCESS; + } else { + _PR_MD_MAP_SETSOCKOPT_ERROR(WSAGetLastError()); + return PR_FAILURE; + } +} + +void +_MD_MakeNonblock(PRFileDesc *f) +{ + return; /* do nothing */ +} + + + +/* + * socket_io_wait -- + * + * Wait for socket i/o, periodically checking for interrupt. + * + * This function returns 1 on success. On failure, it returns + * -1 and sets the error codes. It never returns 0. + */ +#define _PR_INTERRUPT_CHECK_INTERVAL_SECS 5 + +static PRInt32 socket_io_wait( + PROsfd osfd, + PRInt32 fd_type, + PRIntervalTime timeout) +{ + PRInt32 rv = -1; + struct timeval tv; + PRThread *me = _PR_MD_CURRENT_THREAD(); + PRIntervalTime elapsed, remaining; + PRBool wait_for_remaining; + fd_set rd_wr, ex; + int err, len; + + switch (timeout) { + case PR_INTERVAL_NO_WAIT: + PR_SetError(PR_IO_TIMEOUT_ERROR, 0); + break; + case PR_INTERVAL_NO_TIMEOUT: + /* + * This is a special case of the 'default' case below. + * Please see the comments there. + */ + tv.tv_sec = _PR_INTERRUPT_CHECK_INTERVAL_SECS; + tv.tv_usec = 0; + FD_ZERO(&rd_wr); + FD_ZERO(&ex); + do { + FD_SET(osfd, &rd_wr); + FD_SET(osfd, &ex); + switch( fd_type ) + { + case READ_FD: + rv = _MD_SELECT(0, &rd_wr, NULL, NULL, &tv); + break; + case WRITE_FD: + rv = _MD_SELECT(0, NULL, &rd_wr, NULL, &tv); + break; + case CONNECT_FD: + rv = _MD_SELECT(0, NULL, &rd_wr, &ex, &tv); + break; + default: + PR_ASSERT(0); + break; + } /* end switch() */ + if (rv == -1 ) + { + _PR_MD_MAP_SELECT_ERROR(WSAGetLastError()); + break; + } + if ( rv > 0 && fd_type == CONNECT_FD ) + { + /* + * Call Sleep(0) to work around a Winsock timing bug. + */ + Sleep(0); + if (FD_ISSET((SOCKET)osfd, &ex)) + { + len = sizeof(err); + if (getsockopt(osfd, SOL_SOCKET, SO_ERROR, + (char *) &err, &len) == SOCKET_ERROR) + { + _PR_MD_MAP_GETSOCKOPT_ERROR(WSAGetLastError()); + return -1; + } + if (err != 0) { + _PR_MD_MAP_CONNECT_ERROR(err); + } + else { + PR_SetError(PR_UNKNOWN_ERROR, 0); + } + return -1; + } + if (FD_ISSET((SOCKET)osfd, &rd_wr)) + { + /* it's connected */ + return 1; + } + PR_ASSERT(0); + } + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + rv = -1; + break; + } + } while (rv == 0); + break; + default: + remaining = timeout; + FD_ZERO(&rd_wr); + FD_ZERO(&ex); + do { + /* + * We block in _MD_SELECT for at most + * _PR_INTERRUPT_CHECK_INTERVAL_SECS seconds, + * so that there is an upper limit on the delay + * before the interrupt bit is checked. + */ + wait_for_remaining = PR_TRUE; + tv.tv_sec = PR_IntervalToSeconds(remaining); + if (tv.tv_sec > _PR_INTERRUPT_CHECK_INTERVAL_SECS) { + wait_for_remaining = PR_FALSE; + tv.tv_sec = _PR_INTERRUPT_CHECK_INTERVAL_SECS; + tv.tv_usec = 0; + } else { + tv.tv_usec = PR_IntervalToMicroseconds( + remaining - + PR_SecondsToInterval(tv.tv_sec)); + } + FD_SET(osfd, &rd_wr); + FD_SET(osfd, &ex); + switch( fd_type ) + { + case READ_FD: + rv = _MD_SELECT(0, &rd_wr, NULL, NULL, &tv); + break; + case WRITE_FD: + rv = _MD_SELECT(0, NULL, &rd_wr, NULL, &tv); + break; + case CONNECT_FD: + rv = _MD_SELECT(0, NULL, &rd_wr, &ex, &tv); + break; + default: + PR_ASSERT(0); + break; + } /* end switch() */ + if (rv == -1) + { + _PR_MD_MAP_SELECT_ERROR(WSAGetLastError()); + break; + } + if ( rv > 0 && fd_type == CONNECT_FD ) + { + /* + * Call Sleep(0) to work around a Winsock timing bug. + */ + Sleep(0); + if (FD_ISSET((SOCKET)osfd, &ex)) + { + len = sizeof(err); + if (getsockopt(osfd, SOL_SOCKET, SO_ERROR, + (char *) &err, &len) == SOCKET_ERROR) + { + _PR_MD_MAP_GETSOCKOPT_ERROR(WSAGetLastError()); + return -1; + } + if (err != 0) { + _PR_MD_MAP_CONNECT_ERROR(err); + } + else { + PR_SetError(PR_UNKNOWN_ERROR, 0); + } + return -1; + } + if (FD_ISSET((SOCKET)osfd, &rd_wr)) + { + /* it's connected */ + return 1; + } + PR_ASSERT(0); + } + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + rv = -1; + break; + } + /* + * We loop again if _MD_SELECT timed out and the + * timeout deadline has not passed yet. + */ + if (rv == 0 ) + { + if (wait_for_remaining) { + elapsed = remaining; + } else { + elapsed = PR_SecondsToInterval(tv.tv_sec) + + PR_MicrosecondsToInterval(tv.tv_usec); + } + if (elapsed >= remaining) { + PR_SetError(PR_IO_TIMEOUT_ERROR, 0); + rv = -1; + break; + } else { + remaining = remaining - elapsed; + } + } + } while (rv == 0 ); + break; + } + return(rv); +} /* end socket_io_wait() */ diff --git a/nsprpub/pr/src/md/windows/w95thred.c b/nsprpub/pr/src/md/windows/w95thred.c new file mode 100644 index 0000000000..fb9c457d73 --- /dev/null +++ b/nsprpub/pr/src/md/windows/w95thred.c @@ -0,0 +1,381 @@ + +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "primpl.h" +#include <process.h> /* for _beginthreadex() */ + +#if defined(_MSC_VER) && _MSC_VER <= 1200 +/* + * VC++ 6.0 doesn't have DWORD_PTR. + */ + +typedef DWORD DWORD_PTR; +#endif /* _MSC_VER <= 1200 */ + +/* --- globals ------------------------------------------------ */ +#ifdef _PR_USE_STATIC_TLS +__declspec(thread) struct PRThread *_pr_thread_last_run; +__declspec(thread) struct PRThread *_pr_currentThread; +__declspec(thread) struct _PRCPU *_pr_currentCPU; +#else +DWORD _pr_currentThreadIndex; +DWORD _pr_lastThreadIndex; +DWORD _pr_currentCPUIndex; +#endif +int _pr_intsOff = 0; +_PRInterruptTable _pr_interruptTable[] = { { 0 } }; + +typedef HRESULT (WINAPI *SETTHREADDESCRIPTION)(HANDLE, PCWSTR); +static SETTHREADDESCRIPTION sSetThreadDescription = NULL; + +void +_PR_MD_EARLY_INIT() +{ + HMODULE hModule; + +#ifndef _PR_USE_STATIC_TLS + _pr_currentThreadIndex = TlsAlloc(); + _pr_lastThreadIndex = TlsAlloc(); + _pr_currentCPUIndex = TlsAlloc(); +#endif + +#if defined(_WIN64) && defined(WIN95) + _fd_waiting_for_overlapped_done_lock = PR_NewLock(); +#endif + + // SetThreadDescription is Windows 10 build 1607+ + hModule = GetModuleHandleW(L"kernel32.dll"); + if (hModule) { + sSetThreadDescription = + (SETTHREADDESCRIPTION) GetProcAddress( + hModule, + "SetThreadDescription"); + } +} + +void _PR_MD_CLEANUP_BEFORE_EXIT(void) +{ + _PR_NT_FreeSids(); + + _PR_MD_CleanupSockets(); + + WSACleanup(); + +#ifndef _PR_USE_STATIC_TLS + TlsFree(_pr_currentThreadIndex); + TlsFree(_pr_lastThreadIndex); + TlsFree(_pr_currentCPUIndex); +#endif + +#if defined(_WIN64) && defined(WIN95) + // For each iteration check if TFO overlapped IOs are down. + if (_fd_waiting_for_overlapped_done_lock) { + PRIntervalTime delay = PR_MillisecondsToInterval(1000); + PRFileDescList *cur; + do { + CheckOverlappedPendingSocketsAreDone(); + + PR_Lock(_fd_waiting_for_overlapped_done_lock); + cur = _fd_waiting_for_overlapped_done; + PR_Unlock(_fd_waiting_for_overlapped_done_lock); +#if defined(DO_NOT_WAIT_FOR_CONNECT_OVERLAPPED_OPERATIONS) + cur = NULL; +#endif + if (cur) { + PR_Sleep(delay); // wait another 1s. + } + } while (cur); + + PR_DestroyLock(_fd_waiting_for_overlapped_done_lock); + } +#endif +} + +PRStatus +_PR_MD_INIT_THREAD(PRThread *thread) +{ + if (thread->flags & (_PR_PRIMORDIAL | _PR_ATTACHED)) { + /* + ** Warning: + ** -------- + ** NSPR requires a real handle to every thread. + ** GetCurrentThread() returns a pseudo-handle which + ** is not suitable for some thread operations (e.g., + ** suspending). Therefore, get a real handle from + ** the pseudo handle via DuplicateHandle(...) + */ + BOOL ok = DuplicateHandle( + GetCurrentProcess(), /* Process of source handle */ + GetCurrentThread(), /* Pseudo Handle to dup */ + GetCurrentProcess(), /* Process of handle */ + &(thread->md.handle), /* resulting handle */ + 0L, /* access flags */ + FALSE, /* Inheritable */ + DUPLICATE_SAME_ACCESS); /* Options */ + if (!ok) { + return PR_FAILURE; + } + thread->id = GetCurrentThreadId(); + thread->md.id = thread->id; + } + + /* Create the blocking IO semaphore */ + thread->md.blocked_sema = CreateSemaphore(NULL, 0, 1, NULL); + if (thread->md.blocked_sema == NULL) { + return PR_FAILURE; + } + else { + return PR_SUCCESS; + } +} + +static unsigned __stdcall +pr_root(void *arg) +{ + PRThread *thread = (PRThread *)arg; + thread->md.start(thread); + return 0; +} + +PRStatus +_PR_MD_CREATE_THREAD(PRThread *thread, + void (*start)(void *), + PRThreadPriority priority, + PRThreadScope scope, + PRThreadState state, + PRUint32 stackSize) +{ + + thread->md.start = start; + thread->md.handle = (HANDLE) _beginthreadex( + NULL, + thread->stack->stackSize, + pr_root, + (void *)thread, + CREATE_SUSPENDED | STACK_SIZE_PARAM_IS_A_RESERVATION, + &(thread->id)); + if(!thread->md.handle) { + return PR_FAILURE; + } + + thread->md.id = thread->id; + /* + * On windows, a thread is created with a thread priority of + * THREAD_PRIORITY_NORMAL. + */ + if (priority != PR_PRIORITY_NORMAL) { + _PR_MD_SET_PRIORITY(&(thread->md), priority); + } + + /* Activate the thread */ + if ( ResumeThread( thread->md.handle ) != -1) { + return PR_SUCCESS; + } + + return PR_FAILURE; +} + +void +_PR_MD_YIELD(void) +{ + /* Can NT really yield at all? */ + Sleep(0); +} + +void +_PR_MD_SET_PRIORITY(_MDThread *thread, PRThreadPriority newPri) +{ + int nativePri; + BOOL rv; + + if (newPri < PR_PRIORITY_FIRST) { + newPri = PR_PRIORITY_FIRST; + } else if (newPri > PR_PRIORITY_LAST) { + newPri = PR_PRIORITY_LAST; + } + switch (newPri) { + case PR_PRIORITY_LOW: + nativePri = THREAD_PRIORITY_BELOW_NORMAL; + break; + case PR_PRIORITY_NORMAL: + nativePri = THREAD_PRIORITY_NORMAL; + break; + case PR_PRIORITY_HIGH: + nativePri = THREAD_PRIORITY_ABOVE_NORMAL; + break; + case PR_PRIORITY_URGENT: + nativePri = THREAD_PRIORITY_HIGHEST; + } + rv = SetThreadPriority(thread->handle, nativePri); + PR_ASSERT(rv); + if (!rv) { + PR_LOG(_pr_thread_lm, PR_LOG_MIN, + ("PR_SetThreadPriority: can't set thread priority\n")); + } + return; +} + +const DWORD MS_VC_EXCEPTION = 0x406D1388; + +#pragma pack(push,8) +typedef struct tagTHREADNAME_INFO +{ + DWORD dwType; // Must be 0x1000. + LPCSTR szName; // Pointer to name (in user addr space). + DWORD dwThreadID; // Thread ID (-1=caller thread). + DWORD dwFlags; // Reserved for future use, must be zero. +} THREADNAME_INFO; +#pragma pack(pop) + +void +_PR_MD_SET_CURRENT_THREAD_NAME(const char *name) +{ +#ifdef _MSC_VER + THREADNAME_INFO info; +#endif + + if (sSetThreadDescription) { + WCHAR wideName[MAX_PATH]; + if (MultiByteToWideChar(CP_ACP, 0, name, -1, wideName, MAX_PATH)) { + sSetThreadDescription(GetCurrentThread(), wideName); + } + } + +#ifdef _MSC_VER + if (!IsDebuggerPresent()) { + return; + } + + info.dwType = 0x1000; + info.szName = (char*) name; + info.dwThreadID = -1; + info.dwFlags = 0; + + __try { + RaiseException(MS_VC_EXCEPTION, + 0, + sizeof(info) / sizeof(ULONG_PTR), + (ULONG_PTR*)&info); + } __except(EXCEPTION_CONTINUE_EXECUTION) { + } +#endif +} + +void +_PR_MD_CLEAN_THREAD(PRThread *thread) +{ + BOOL rv; + + if (thread->md.blocked_sema) { + rv = CloseHandle(thread->md.blocked_sema); + PR_ASSERT(rv); + thread->md.blocked_sema = 0; + } + + if (thread->md.handle) { + rv = CloseHandle(thread->md.handle); + PR_ASSERT(rv); + thread->md.handle = 0; + } +} + +void +_PR_MD_EXIT_THREAD(PRThread *thread) +{ + _PR_MD_CLEAN_THREAD(thread); + _PR_MD_SET_CURRENT_THREAD(NULL); +} + + +void +_PR_MD_EXIT(PRIntn status) +{ + _exit(status); +} + +PRInt32 _PR_MD_SETTHREADAFFINITYMASK(PRThread *thread, PRUint32 mask ) +{ +#ifdef WINCE + SetLastError(ERROR_CALL_NOT_IMPLEMENTED); + return -1; +#else + DWORD_PTR rv; + + rv = SetThreadAffinityMask(thread->md.handle, mask); + + return rv?0:-1; +#endif +} + +PRInt32 _PR_MD_GETTHREADAFFINITYMASK(PRThread *thread, PRUint32 *mask) +{ +#ifdef WINCE + SetLastError(ERROR_CALL_NOT_IMPLEMENTED); + return -1; +#else + BOOL rv; + DWORD_PTR process_mask; + DWORD_PTR system_mask; + + rv = GetProcessAffinityMask(GetCurrentProcess(), + &process_mask, &system_mask); + if (rv) { + *mask = (PRUint32)process_mask; + } + + return rv?0:-1; +#endif +} + +void +_PR_MD_SUSPEND_CPU(_PRCPU *cpu) +{ + _PR_MD_SUSPEND_THREAD(cpu->thread); +} + +void +_PR_MD_RESUME_CPU(_PRCPU *cpu) +{ + _PR_MD_RESUME_THREAD(cpu->thread); +} + +void +_PR_MD_SUSPEND_THREAD(PRThread *thread) +{ + if (_PR_IS_NATIVE_THREAD(thread)) { + DWORD previousSuspendCount; + /* XXXMB - SuspendThread() is not a blocking call; how do we + * know when the thread is *REALLY* suspended? + */ + previousSuspendCount = SuspendThread(thread->md.handle); + PR_ASSERT(previousSuspendCount == 0); + } +} + +void +_PR_MD_RESUME_THREAD(PRThread *thread) +{ + if (_PR_IS_NATIVE_THREAD(thread)) { + DWORD previousSuspendCount; + previousSuspendCount = ResumeThread(thread->md.handle); + PR_ASSERT(previousSuspendCount == 1); + } +} + +PRThread* +_MD_CURRENT_THREAD(void) +{ + PRThread *thread; + + thread = _MD_GET_ATTACHED_THREAD(); + + if (NULL == thread) { + thread = _PRI_AttachThread( + PR_USER_THREAD, PR_PRIORITY_NORMAL, NULL, 0); + } + PR_ASSERT(thread != NULL); + return thread; +} diff --git a/nsprpub/pr/src/md/windows/win32_errors.c b/nsprpub/pr/src/md/windows/win32_errors.c new file mode 100644 index 0000000000..b0118146b6 --- /dev/null +++ b/nsprpub/pr/src/md/windows/win32_errors.c @@ -0,0 +1,541 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "prerror.h" +#include "prlog.h" +#include <errno.h> +#include <windows.h> + +/* + * On Win32, we map three kinds of error codes: + * - GetLastError(): for Win32 functions + * - WSAGetLastError(): for Winsock functions + * - errno: for standard C library functions + * + * GetLastError() and WSAGetLastError() return error codes in + * non-overlapping ranges, so their error codes (ERROR_* and + * WSAE*) can be mapped by the same function. On the other hand, + * errno and GetLastError() have overlapping ranges, so we need + * to use a separate function to map errno. + * + * We do not check for WSAEINPROGRESS and WSAEINTR because we do not + * use blocking Winsock 1.1 calls. + * + * Except for the 'socket' call, we do not check for WSAEINITIALISED. + * It is assumed that if Winsock is not initialized, that fact will + * be detected at the time we create new sockets. + */ + +static void _MD_win32_map_default_errno(PRInt32 err) +{ + PRErrorCode prError; + + switch (err) { + case EACCES: + prError = PR_NO_ACCESS_RIGHTS_ERROR; + break; + case ENOENT: + prError = PR_FILE_NOT_FOUND_ERROR; + break; + default: + prError = PR_UNKNOWN_ERROR; + break; + } + PR_SetError(prError, err); +} + +void _MD_win32_map_default_error(PRInt32 err) +{ + PRErrorCode prError; + + switch (err) { + case ERROR_ACCESS_DENIED: + prError = PR_NO_ACCESS_RIGHTS_ERROR; + break; + case ERROR_ALREADY_EXISTS: + prError = PR_FILE_EXISTS_ERROR; + break; + case ERROR_CALL_NOT_IMPLEMENTED: + prError = PR_NOT_IMPLEMENTED_ERROR; + break; + case ERROR_DISK_CORRUPT: + prError = PR_IO_ERROR; + break; + case ERROR_DISK_FULL: + prError = PR_NO_DEVICE_SPACE_ERROR; + break; + case ERROR_DISK_OPERATION_FAILED: + prError = PR_IO_ERROR; + break; + case ERROR_DRIVE_LOCKED: + prError = PR_FILE_IS_LOCKED_ERROR; + break; + case ERROR_FILENAME_EXCED_RANGE: + prError = PR_NAME_TOO_LONG_ERROR; + break; + case ERROR_FILE_CORRUPT: + prError = PR_IO_ERROR; + break; + case ERROR_FILE_EXISTS: + prError = PR_FILE_EXISTS_ERROR; + break; + case ERROR_FILE_INVALID: + prError = PR_BAD_DESCRIPTOR_ERROR; + break; + case ERROR_FILE_NOT_FOUND: + prError = PR_FILE_NOT_FOUND_ERROR; + break; + case ERROR_HANDLE_DISK_FULL: + prError = PR_NO_DEVICE_SPACE_ERROR; + break; + case ERROR_INVALID_ADDRESS: + prError = PR_ACCESS_FAULT_ERROR; + break; + case ERROR_INVALID_HANDLE: + prError = PR_BAD_DESCRIPTOR_ERROR; + break; + case ERROR_INVALID_NAME: + prError = PR_INVALID_ARGUMENT_ERROR; + break; + case ERROR_INVALID_PARAMETER: + prError = PR_INVALID_ARGUMENT_ERROR; + break; + case ERROR_INVALID_USER_BUFFER: + prError = PR_INSUFFICIENT_RESOURCES_ERROR; + break; + case ERROR_LOCKED: + prError = PR_FILE_IS_LOCKED_ERROR; + break; + case ERROR_NETNAME_DELETED: + prError = PR_CONNECT_RESET_ERROR; + break; + case ERROR_NOACCESS: + prError = PR_ACCESS_FAULT_ERROR; + break; + case ERROR_NOT_ENOUGH_MEMORY: + prError = PR_INSUFFICIENT_RESOURCES_ERROR; + break; + case ERROR_NOT_ENOUGH_QUOTA: + prError = PR_OUT_OF_MEMORY_ERROR; + break; + case ERROR_NOT_READY: + prError = PR_IO_ERROR; + break; + case ERROR_NO_MORE_FILES: + prError = PR_NO_MORE_FILES_ERROR; + break; + case ERROR_OPEN_FAILED: + prError = PR_IO_ERROR; + break; + case ERROR_OPEN_FILES: + prError = PR_IO_ERROR; + break; + case ERROR_OPERATION_ABORTED: + prError = PR_OPERATION_ABORTED_ERROR; + break; + case ERROR_OUTOFMEMORY: + prError = PR_INSUFFICIENT_RESOURCES_ERROR; + break; + case ERROR_PATH_BUSY: + prError = PR_IO_ERROR; + break; + case ERROR_PATH_NOT_FOUND: + prError = PR_FILE_NOT_FOUND_ERROR; + break; + case ERROR_SEEK_ON_DEVICE: + prError = PR_IO_ERROR; + break; + case ERROR_SHARING_VIOLATION: + prError = PR_FILE_IS_BUSY_ERROR; + break; + case ERROR_STACK_OVERFLOW: + prError = PR_ACCESS_FAULT_ERROR; + break; + case ERROR_TOO_MANY_OPEN_FILES: + prError = PR_SYS_DESC_TABLE_FULL_ERROR; + break; + case ERROR_WRITE_PROTECT: + prError = PR_NO_ACCESS_RIGHTS_ERROR; + break; + case WSAEACCES: + prError = PR_NO_ACCESS_RIGHTS_ERROR; + break; + case WSAEADDRINUSE: + prError = PR_ADDRESS_IN_USE_ERROR; + break; + case WSAEADDRNOTAVAIL: + case ERROR_INVALID_NETNAME: + prError = PR_ADDRESS_NOT_AVAILABLE_ERROR; + break; + case WSAEAFNOSUPPORT: + case ERROR_INCORRECT_ADDRESS: + prError = PR_ADDRESS_NOT_SUPPORTED_ERROR; + break; + case WSAEALREADY: + case ERROR_ALREADY_INITIALIZED: + prError = PR_ALREADY_INITIATED_ERROR; + break; + case WSAEBADF: + prError = PR_BAD_DESCRIPTOR_ERROR; + break; + case WSAECONNABORTED: + case ERROR_CONNECTION_ABORTED: + prError = PR_CONNECT_ABORTED_ERROR; + break; + case WSAECONNREFUSED: + case ERROR_CONNECTION_REFUSED: + prError = PR_CONNECT_REFUSED_ERROR; + break; + case WSAECONNRESET: + prError = PR_CONNECT_RESET_ERROR; + break; + case WSAEDESTADDRREQ: + prError = PR_INVALID_ARGUMENT_ERROR; + break; + case WSAEFAULT: + prError = PR_ACCESS_FAULT_ERROR; + break; + case WSAEHOSTUNREACH: + case ERROR_HOST_UNREACHABLE: + prError = PR_HOST_UNREACHABLE_ERROR; + break; + case WSAEINVAL: + prError = PR_INVALID_ARGUMENT_ERROR; + break; + case WSAEISCONN: + prError = PR_IS_CONNECTED_ERROR; + break; + case WSAEMFILE: + prError = PR_PROC_DESC_TABLE_FULL_ERROR; + break; + case WSAEMSGSIZE: + prError = PR_BUFFER_OVERFLOW_ERROR; + break; + case WSAENETDOWN: + case ERROR_NO_NETWORK: + prError = PR_NETWORK_DOWN_ERROR; + break; + case WSAENETRESET: + prError = PR_CONNECT_ABORTED_ERROR; + break; + case WSAENETUNREACH: + case ERROR_NETWORK_UNREACHABLE: + prError = PR_NETWORK_UNREACHABLE_ERROR; + break; + case WSAENOBUFS: + prError = PR_INSUFFICIENT_RESOURCES_ERROR; + break; + case WSAENOPROTOOPT: + prError = PR_INVALID_ARGUMENT_ERROR; + break; + case WSAENOTCONN: + prError = PR_NOT_CONNECTED_ERROR; + break; + case WSAENOTSOCK: + prError = PR_NOT_SOCKET_ERROR; + break; + case WSAEOPNOTSUPP: + prError = PR_OPERATION_NOT_SUPPORTED_ERROR; + break; + case WSAEPROTONOSUPPORT: + prError = PR_PROTOCOL_NOT_SUPPORTED_ERROR; + break; + case WSAEPROTOTYPE: + prError = PR_INVALID_ARGUMENT_ERROR; + break; + case WSAESHUTDOWN: + prError = PR_SOCKET_SHUTDOWN_ERROR; + break; + case WSAESOCKTNOSUPPORT: + prError = PR_INVALID_ARGUMENT_ERROR; + break; + case WSAETIMEDOUT: + prError = PR_CONNECT_ABORTED_ERROR; + break; + case WSAEWOULDBLOCK: + prError = PR_WOULD_BLOCK_ERROR; + break; + default: + prError = PR_UNKNOWN_ERROR; + break; + } + PR_SetError(prError, err); +} + +void _MD_win32_map_opendir_error(PRInt32 err) +{ + _MD_win32_map_default_error(err); +} + +void _MD_win32_map_closedir_error(PRInt32 err) +{ + _MD_win32_map_default_error(err); +} + +void _MD_unix_readdir_error(PRInt32 err) +{ + _MD_win32_map_default_error(err); +} + +void _MD_win32_map_delete_error(PRInt32 err) +{ + _MD_win32_map_default_error(err); +} + +/* The error code for stat() is in errno. */ +void _MD_win32_map_stat_error(PRInt32 err) +{ + _MD_win32_map_default_errno(err); +} + +void _MD_win32_map_fstat_error(PRInt32 err) +{ + _MD_win32_map_default_error(err); +} + +void _MD_win32_map_rename_error(PRInt32 err) +{ + _MD_win32_map_default_error(err); +} + +/* The error code for access() is in errno. */ +void _MD_win32_map_access_error(PRInt32 err) +{ + _MD_win32_map_default_errno(err); +} + +void _MD_win32_map_mkdir_error(PRInt32 err) +{ + _MD_win32_map_default_error(err); +} + +void _MD_win32_map_rmdir_error(PRInt32 err) +{ + _MD_win32_map_default_error(err); +} + +void _MD_win32_map_read_error(PRInt32 err) +{ + _MD_win32_map_default_error(err); +} + +void _MD_win32_map_transmitfile_error(PRInt32 err) +{ + _MD_win32_map_default_error(err); +} + +void _MD_win32_map_write_error(PRInt32 err) +{ + _MD_win32_map_default_error(err); +} + +void _MD_win32_map_lseek_error(PRInt32 err) +{ + _MD_win32_map_default_error(err); +} + +void _MD_win32_map_fsync_error(PRInt32 err) +{ + _MD_win32_map_default_error(err); +} + +/* + * For both CloseHandle() and closesocket(). + */ +void _MD_win32_map_close_error(PRInt32 err) +{ + _MD_win32_map_default_error(err); +} + +void _MD_win32_map_socket_error(PRInt32 err) +{ + PR_ASSERT(err != WSANOTINITIALISED); + _MD_win32_map_default_error(err); +} + +void _MD_win32_map_recv_error(PRInt32 err) +{ + _MD_win32_map_default_error(err); +} + +void _MD_win32_map_recvfrom_error(PRInt32 err) +{ + _MD_win32_map_default_error(err); +} + +void _MD_win32_map_send_error(PRInt32 err) +{ + PRErrorCode prError; + + switch (err) { + case WSAEMSGSIZE: + prError = PR_INVALID_ARGUMENT_ERROR; + break; + default: + _MD_win32_map_default_error(err); + return; + } + PR_SetError(prError, err); +} + +void _MD_win32_map_sendto_error(PRInt32 err) +{ + PRErrorCode prError; + + switch (err) { + case WSAEMSGSIZE: + prError = PR_INVALID_ARGUMENT_ERROR; + break; + default: + _MD_win32_map_default_error(err); + return; + } + PR_SetError(prError, err); +} + +void _MD_win32_map_accept_error(PRInt32 err) +{ + PRErrorCode prError; + + switch (err) { + case WSAEOPNOTSUPP: + prError = PR_NOT_TCP_SOCKET_ERROR; + break; + case WSAEINVAL: + prError = PR_INVALID_STATE_ERROR; + break; + default: + _MD_win32_map_default_error(err); + return; + } + PR_SetError(prError, err); +} + +void _MD_win32_map_acceptex_error(PRInt32 err) +{ + _MD_win32_map_default_error(err); +} + +void _MD_win32_map_connect_error(PRInt32 err) +{ + PRErrorCode prError; + + switch (err) { + case WSAEWOULDBLOCK: + prError = PR_IN_PROGRESS_ERROR; + break; + case WSAEINVAL: + prError = PR_ALREADY_INITIATED_ERROR; + break; + case WSAETIMEDOUT: + prError = PR_IO_TIMEOUT_ERROR; + break; + default: + _MD_win32_map_default_error(err); + return; + } + PR_SetError(prError, err); +} + +void _MD_win32_map_bind_error(PRInt32 err) +{ + PRErrorCode prError; + + switch (err) { + case WSAEINVAL: + prError = PR_SOCKET_ADDRESS_IS_BOUND_ERROR; + break; + default: + _MD_win32_map_default_error(err); + return; + } + PR_SetError(prError, err); +} + +void _MD_win32_map_listen_error(PRInt32 err) +{ + PRErrorCode prError; + + switch (err) { + case WSAEOPNOTSUPP: + prError = PR_NOT_TCP_SOCKET_ERROR; + break; + case WSAEINVAL: + prError = PR_INVALID_STATE_ERROR; + break; + default: + _MD_win32_map_default_error(err); + return; + } + PR_SetError(prError, err); +} + +void _MD_win32_map_shutdown_error(PRInt32 err) +{ + _MD_win32_map_default_error(err); +} + +void _MD_win32_map_getsockname_error(PRInt32 err) +{ + PRErrorCode prError; + + switch (err) { + case WSAEINVAL: + prError = PR_INVALID_STATE_ERROR; + break; + default: + _MD_win32_map_default_error(err); + return; + } + PR_SetError(prError, err); +} + +void _MD_win32_map_getpeername_error(PRInt32 err) +{ + _MD_win32_map_default_error(err); +} + +void _MD_win32_map_getsockopt_error(PRInt32 err) +{ + _MD_win32_map_default_error(err); +} + +void _MD_win32_map_setsockopt_error(PRInt32 err) +{ + _MD_win32_map_default_error(err); +} + +void _MD_win32_map_open_error(PRInt32 err) +{ + _MD_win32_map_default_error(err); +} + +void _MD_win32_map_gethostname_error(PRInt32 err) +{ + _MD_win32_map_default_error(err); +} + +/* Win32 select() only works on sockets. So in this +** context, WSAENOTSOCK is equivalent to EBADF on Unix. +*/ +void _MD_win32_map_select_error(PRInt32 err) +{ + PRErrorCode prError; + + switch (err) { + case WSAENOTSOCK: + prError = PR_BAD_DESCRIPTOR_ERROR; + break; + default: + _MD_win32_map_default_error(err); + return; + } + PR_SetError(prError, err); +} + +void _MD_win32_map_lockf_error(PRInt32 err) +{ + _MD_win32_map_default_error(err); +} |