90 lines
2.4 KiB
C
90 lines
2.4 KiB
C
/*
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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xrdp: A Remote Desktop Protocol server.
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Copyright (C) Jay Sorg 2005-2008
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session manager
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linux only
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*/
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#include "sesman.h"
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#include <semaphore.h>
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#include <pthread.h>
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extern struct config_sesman* g_cfg;
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pthread_mutex_t lock_chain; /* session chain lock */
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pthread_mutexattr_t lock_chain_attr; /* mutex attributes */
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pthread_mutex_t lock_config; /* configuration access lock */
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pthread_mutexattr_t lock_config_attr; /* mutex attributes */
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sem_t lock_socket;
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void DEFAULT_CC
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lock_init(void)
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{
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/* initializing socket lock */
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sem_init(&lock_socket, 0, 1);
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/* initializing chain lock */
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pthread_mutexattr_init(&lock_chain_attr);
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pthread_mutex_init(&lock_chain, &lock_chain_attr);
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/* initializing config lock */
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pthread_mutexattr_init(&lock_config_attr);
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pthread_mutex_init(&lock_config, &lock_config_attr);
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}
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/******************************************************************************/
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void DEFAULT_CC
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lock_chain_acquire(void)
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{
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/*lock the chain*/
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LOG_DBG(&(g_cfg->log), "lock_chain_acquire()");
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pthread_mutex_lock(&lock_chain);
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}
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/******************************************************************************/
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void DEFAULT_CC
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lock_chain_release(void)
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{
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/*unlock the chain*/
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LOG_DBG(&(g_cfg->log), "lock_chain_release()");
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pthread_mutex_unlock(&lock_chain);
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}
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/******************************************************************************/
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void DEFAULT_CC
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lock_socket_acquire(void)
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{
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/* lock socket variable */
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LOG_DBG(&(g_cfg->log), "lock_socket_acquire()");
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sem_wait(&lock_socket);
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}
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/******************************************************************************/
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void DEFAULT_CC
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lock_socket_release(void)
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{
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/* unlock socket variable */
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LOG_DBG(&(g_cfg->log), "lock_socket_release()");
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sem_post(&lock_socket);
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}
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