2006-07-14 00:15:21 +04:00
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/*
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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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2010-07-26 07:48:58 +04:00
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Copyright (C) Jay Sorg 2005-2010
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2006-07-14 00:15:21 +04:00
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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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2009-09-28 05:16:07 +04:00
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extern struct config_sesman* g_cfg; /* in sesman.c */
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2008-07-30 14:58:30 +04:00
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2009-01-15 10:59:47 +03:00
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static tbus g_sync_mutex = 0;
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static tbus g_lock_chain = 0;
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static tbus g_sync_sem = 0;
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static tbus g_lock_socket = 0;
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2009-01-12 09:43:58 +03:00
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2009-01-15 10:59:47 +03:00
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/******************************************************************************/
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void APP_CC
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2007-04-16 01:03:05 +04:00
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lock_init(void)
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2006-07-14 00:15:21 +04:00
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{
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2009-01-12 09:43:58 +03:00
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g_sync_mutex = tc_mutex_create();
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2009-01-15 10:59:47 +03:00
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g_lock_chain = tc_mutex_create();
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2009-01-12 09:43:58 +03:00
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g_sync_sem = tc_sem_create(0);
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2009-01-15 10:59:47 +03:00
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g_lock_socket = tc_sem_create(1);
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2006-07-14 00:15:21 +04:00
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}
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/******************************************************************************/
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2009-01-15 10:59:47 +03:00
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void APP_CC
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lock_deinit(void)
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{
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tc_mutex_delete(g_sync_mutex);
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tc_mutex_delete(g_lock_chain);
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tc_sem_delete(g_sync_sem);
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tc_sem_delete(g_lock_socket);
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}
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/******************************************************************************/
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void APP_CC
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2007-04-16 01:03:05 +04:00
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lock_chain_acquire(void)
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2006-07-14 00:15:21 +04:00
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{
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2009-01-15 10:59:47 +03:00
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/* lock the chain */
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2008-07-30 14:58:30 +04:00
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LOG_DBG(&(g_cfg->log), "lock_chain_acquire()");
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2009-01-15 10:59:47 +03:00
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tc_mutex_lock(g_lock_chain);
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2006-07-14 00:15:21 +04:00
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}
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/******************************************************************************/
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2009-01-15 10:59:47 +03:00
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void APP_CC
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2007-04-16 01:03:05 +04:00
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lock_chain_release(void)
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2006-07-14 00:15:21 +04:00
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{
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2009-01-15 10:59:47 +03:00
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/* unlock the chain */
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2008-07-30 14:58:30 +04:00
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LOG_DBG(&(g_cfg->log), "lock_chain_release()");
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2009-01-15 10:59:47 +03:00
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tc_mutex_unlock(g_lock_chain);
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2006-07-14 00:15:21 +04:00
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}
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/******************************************************************************/
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2009-01-15 10:59:47 +03:00
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void APP_CC
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2007-04-16 01:03:05 +04:00
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lock_socket_acquire(void)
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2006-07-14 00:15:21 +04:00
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{
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/* lock socket variable */
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2008-07-30 14:58:30 +04:00
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LOG_DBG(&(g_cfg->log), "lock_socket_acquire()");
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2009-01-15 10:59:47 +03:00
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tc_sem_dec(g_lock_socket);
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2006-07-14 00:15:21 +04:00
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}
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/******************************************************************************/
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2009-01-15 10:59:47 +03:00
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void APP_CC
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2007-04-16 01:03:05 +04:00
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lock_socket_release(void)
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2006-07-14 00:15:21 +04:00
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{
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/* unlock socket variable */
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2008-07-30 14:58:30 +04:00
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LOG_DBG(&(g_cfg->log), "lock_socket_release()");
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2009-01-15 10:59:47 +03:00
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tc_sem_inc(g_lock_socket);
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2006-07-14 00:15:21 +04:00
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}
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2009-01-12 09:43:58 +03:00
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/******************************************************************************/
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void APP_CC
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lock_sync_acquire(void)
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{
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/* lock sync variable */
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LOG_DBG(&(g_cfg->log), "lock_sync_acquire()");
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tc_mutex_lock(g_sync_mutex);
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}
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/******************************************************************************/
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void APP_CC
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lock_sync_release(void)
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{
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/* unlock socket variable */
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2009-01-15 10:59:47 +03:00
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LOG_DBG(&(g_cfg->log), "lock_sync_release()");
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2009-01-12 09:43:58 +03:00
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tc_mutex_unlock(g_sync_mutex);
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}
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/******************************************************************************/
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void APP_CC
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lock_sync_sem_acquire(void)
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{
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/* dec sem */
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2009-01-15 10:59:47 +03:00
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LOG_DBG(&(g_cfg->log), "lock_sync_sem_acquire()");
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2009-01-12 09:43:58 +03:00
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tc_sem_dec(g_sync_sem);
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}
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/******************************************************************************/
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void APP_CC
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lock_sync_sem_release(void)
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{
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/* inc sem */
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2009-01-15 10:59:47 +03:00
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LOG_DBG(&(g_cfg->log), "lock_sync_sem_release()");
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2009-01-12 09:43:58 +03:00
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tc_sem_inc(g_sync_sem);
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}
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