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/*
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
xrdp: A Remote Desktop Protocol server.
Copyright (C) Jay Sorg 2005-2008
session manager
linux only
*/
#include "sesman.h"
extern struct config_sesman* g_cfg; /* in sesman.c */
static tc_p g_sync_mutex = 0;
static tc_p g_lock_chain = 0;
static tc_p g_sync_sem = 0;
static tc_p g_lock_socket = 0;
/******************************************************************************/
void APP_CC
lock_init(void)
{
g_sync_mutex = tc_mutex_create();
g_lock_chain = tc_mutex_create();
g_sync_sem = tc_sem_create(0);
g_lock_socket = tc_sem_create(1);
}
/******************************************************************************/
void APP_CC
lock_deinit(void)
{
tc_mutex_delete(g_sync_mutex);
tc_mutex_delete(g_lock_chain);
tc_sem_delete(g_sync_sem);
tc_sem_delete(g_lock_socket);
}
/******************************************************************************/
void APP_CC
lock_chain_acquire(void)
{
/* lock the chain */
LOG_DBG(&(g_cfg->log), "lock_chain_acquire()");
tc_mutex_lock(g_lock_chain);
}
/******************************************************************************/
void APP_CC
lock_chain_release(void)
{
/* unlock the chain */
LOG_DBG(&(g_cfg->log), "lock_chain_release()");
tc_mutex_unlock(g_lock_chain);
}
/******************************************************************************/
void APP_CC
lock_socket_acquire(void)
{
/* lock socket variable */
LOG_DBG(&(g_cfg->log), "lock_socket_acquire()");
tc_sem_dec(g_lock_socket);
}
/******************************************************************************/
void APP_CC
lock_socket_release(void)
{
/* unlock socket variable */
LOG_DBG(&(g_cfg->log), "lock_socket_release()");
tc_sem_inc(g_lock_socket);
}
/******************************************************************************/
void APP_CC
lock_sync_acquire(void)
{
/* lock sync variable */
LOG_DBG(&(g_cfg->log), "lock_sync_acquire()");
tc_mutex_lock(g_sync_mutex);
}
/******************************************************************************/
void APP_CC
lock_sync_release(void)
{
/* unlock socket variable */
LOG_DBG(&(g_cfg->log), "lock_sync_release()");
tc_mutex_unlock(g_sync_mutex);
}
/******************************************************************************/
void APP_CC
lock_sync_sem_acquire(void)
{
/* dec sem */
LOG_DBG(&(g_cfg->log), "lock_sync_sem_acquire()");
tc_sem_dec(g_sync_sem);
}
/******************************************************************************/
void APP_CC
lock_sync_sem_release(void)
{
/* inc sem */
LOG_DBG(&(g_cfg->log), "lock_sync_sem_release()");
tc_sem_inc(g_sync_sem);
}
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