180 lines
6.2 KiB
C
180 lines
6.2 KiB
C
/*
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* FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
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* Copyright (C) 2005-2014, Anthony Minessale II <anthm@freeswitch.org>
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*
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* Version: MPL 1.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
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*
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* The Initial Developer of the Original Code is
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* Anthony Minessale II <anthm@freeswitch.org>
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* Portions created by the Initial Developer are Copyright (C)
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Anthony Minessale II <anthm@freeswitch.org>
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* Michael Jerris <mike@jerris.com>
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* Paul D. Tinsley <pdt at jackhammer.org>
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*
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*
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* switch_core_rwlock.c -- Main Core Library (read / write locks)
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*
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*/
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#include <switch.h>
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#include "private/switch_core_pvt.h"
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SWITCH_DECLARE(switch_status_t) switch_core_session_io_read_lock(switch_core_session_t *session)
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{
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switch_status_t status = SWITCH_STATUS_FALSE;
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if (session->io_rwlock) {
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if (switch_thread_rwlock_tryrdlock(session->io_rwlock) == SWITCH_STATUS_SUCCESS) {
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status = SWITCH_STATUS_SUCCESS;
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}
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}
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return status;
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}
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SWITCH_DECLARE(switch_status_t) switch_core_session_io_write_lock(switch_core_session_t *session)
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{
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switch_status_t status = SWITCH_STATUS_FALSE;
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if (session->io_rwlock) {
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switch_thread_rwlock_wrlock(session->io_rwlock);
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status = SWITCH_STATUS_SUCCESS;
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}
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return status;
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}
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SWITCH_DECLARE(switch_status_t) switch_core_session_io_rwunlock(switch_core_session_t *session)
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{
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switch_status_t status = SWITCH_STATUS_FALSE;
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if (session->io_rwlock) {
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switch_thread_rwlock_unlock(session->io_rwlock);
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status = SWITCH_STATUS_SUCCESS;
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}
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return status;
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}
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#ifdef SWITCH_DEBUG_RWLOCKS
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SWITCH_DECLARE(switch_status_t) switch_core_session_perform_read_lock(switch_core_session_t *session, const char *file, const char *func, int line)
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#else
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SWITCH_DECLARE(switch_status_t) switch_core_session_read_lock(switch_core_session_t *session)
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#endif
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{
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switch_status_t status = SWITCH_STATUS_FALSE;
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if (session->rwlock) {
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if (switch_test_flag(session, SSF_DESTROYED) || switch_channel_down_nosig(session->channel)) {
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status = SWITCH_STATUS_FALSE;
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if (switch_thread_rwlock_tryrdlock(session->rwlock) == SWITCH_STATUS_SUCCESS) {
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if (switch_channel_test_flag(session->channel, CF_THREAD_SLEEPING)) {
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#ifdef SWITCH_DEBUG_RWLOCKS
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switch_log_printf(SWITCH_CHANNEL_ID_LOG, file, func, line, switch_core_session_get_uuid(session), SWITCH_LOG_ERROR, "%s %s Ping thread\n",
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switch_core_session_get_uuid(session), switch_channel_get_name(session->channel));
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#endif
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switch_core_session_wake_session_thread(session);
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}
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switch_thread_rwlock_unlock(session->rwlock);
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}
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#ifdef SWITCH_DEBUG_RWLOCKS
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switch_log_printf(SWITCH_CHANNEL_ID_LOG, file, func, line, switch_core_session_get_uuid(session), SWITCH_LOG_ERROR, "%s %s Read lock FAIL\n",
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switch_core_session_get_uuid(session), switch_channel_get_name(session->channel));
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#endif
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} else {
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status = (switch_status_t) switch_thread_rwlock_tryrdlock(session->rwlock);
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#ifdef SWITCH_DEBUG_RWLOCKS
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switch_log_printf(SWITCH_CHANNEL_ID_LOG, file, func, line, switch_core_session_get_uuid(session), SWITCH_LOG_ERROR, "%s %s Read lock ACQUIRED\n",
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switch_core_session_get_uuid(session), switch_channel_get_name(session->channel));
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#endif
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}
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}
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return status;
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}
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#ifdef SWITCH_DEBUG_RWLOCKS
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SWITCH_DECLARE(switch_status_t) switch_core_session_perform_read_lock_hangup(switch_core_session_t *session, const char *file, const char *func, int line)
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#else
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SWITCH_DECLARE(switch_status_t) switch_core_session_read_lock_hangup(switch_core_session_t *session)
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#endif
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{
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switch_status_t status = SWITCH_STATUS_FALSE;
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if (session->rwlock) {
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if (switch_test_flag(session, SSF_DESTROYED) || switch_channel_get_state(session->channel) >= CS_DESTROY) {
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status = SWITCH_STATUS_FALSE;
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#ifdef SWITCH_DEBUG_RWLOCKS
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switch_log_printf(SWITCH_CHANNEL_ID_LOG, file, func, line, switch_core_session_get_uuid(session), SWITCH_LOG_ERROR, "%s %s Read lock FAIL\n",
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switch_core_session_get_uuid(session), switch_channel_get_name(session->channel));
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#endif
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} else {
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status = (switch_status_t) switch_thread_rwlock_tryrdlock(session->rwlock);
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#ifdef SWITCH_DEBUG_RWLOCKS
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switch_log_printf(SWITCH_CHANNEL_ID_LOG, file, func, line, switch_core_session_get_uuid(session), SWITCH_LOG_ERROR, "%s %s Read lock ACQUIRED\n",
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switch_core_session_get_uuid(session), switch_channel_get_name(session->channel));
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#endif
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}
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}
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return status;
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}
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#ifdef SWITCH_DEBUG_RWLOCKS
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SWITCH_DECLARE(void) switch_core_session_perform_write_lock(switch_core_session_t *session, const char *file, const char *func, int line)
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{
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switch_log_printf(SWITCH_CHANNEL_ID_LOG, file, func, line, switch_core_session_get_uuid(session), SWITCH_LOG_ERROR, "%s %s Write lock ACQUIRED\n",
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switch_core_session_get_uuid(session), switch_channel_get_name(session->channel));
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#else
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SWITCH_DECLARE(void) switch_core_session_write_lock(switch_core_session_t *session)
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{
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#endif
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switch_thread_rwlock_wrlock(session->rwlock);
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}
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#ifdef SWITCH_DEBUG_RWLOCKS
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SWITCH_DECLARE(void) switch_core_session_perform_rwunlock(switch_core_session_t *session, const char *file, const char *func, int line)
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{
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switch_log_printf(SWITCH_CHANNEL_ID_LOG, file, func, line, switch_core_session_get_uuid(session), SWITCH_LOG_ERROR, "%s %s Read/Write lock CLEARED\n",
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switch_core_session_get_uuid(session), switch_channel_get_name(session->channel));
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#else
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SWITCH_DECLARE(void) switch_core_session_rwunlock(switch_core_session_t *session)
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{
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#endif
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switch_thread_rwlock_unlock(session->rwlock);
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}
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/* For Emacs:
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* Local Variables:
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* mode:c
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* indent-tabs-mode:t
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* tab-width:4
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* c-basic-offset:4
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* End:
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* For VIM:
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* vim:set softtabstop=4 shiftwidth=4 tabstop=4 noet:
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*/
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