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/* synrchonization-related stuff. In theory, that should
* help porting to something different from pthreads.
*
* Copyright 2007 Rainer Gerhards and Adiscon GmbH.
*
* This file is part of rsyslog.
*
* Rsyslog 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 3 of the License, or
* (at your option) any later version.
*
* Rsyslog 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 Rsyslog. If not, see <http://www.gnu.org/licenses/>.
*
* A copy of the GPL can be found in the file "COPYING" in this distribution.
*/
#include "config.h"
#ifdef USE_PTHREADS
/* all of this code is compiled only if PTHREADS is supported - otherwise
* we do not need syncrhonization objects (and do not have them!).
*/
#include <stdlib.h>
#include "rsyslog.h"
#include "sync.h"
void
SyncObjInit(pthread_mutex_t **mut)
{
*mut = (pthread_mutex_t *) malloc (sizeof (pthread_mutex_t));
pthread_mutex_init(*mut, NULL);
}
/* This function destroys the mutex and also sets the mutex object
* to NULL. While the later is not strictly necessary, it is a good
* aid when debugging problems. As this function is not exepected to
* be called quite frequently, the additional overhead can well be
* accepted. If this changes over time, setting to NULL may be
* reconsidered. - rgerhards, 2007-11-12
*/
void
SyncObjExit(pthread_mutex_t **mut)
{
if(*mut != NULL) {
pthread_mutex_destroy(*mut);
free(*mut);
*mut = NULL;
}
}
#ifndef NDEBUG
/* lock an object. The synchronization tool (mutex) must be passed in.
*/
void
lockObj(pthread_mutex_t *mut)
{
pthread_mutex_lock(mut);
}
/* unlock an object. The synchronization tool (mutex) must be passed in.
*/
void
unlockObj(pthread_mutex_t *mut)
{
pthread_mutex_unlock(mut);
}
#endif /* #ifndef NDEBUG */
#endif /* #ifdef USE_PTHREADS */
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