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/* Definitions syncrhonization-related stuff. In theory, that should
* help porting to something different from pthreads.
*
* Copyright 2007 Rainer Gerhards and Adiscon GmbH.
*
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* A copy of the GPL can be found in the file "COPYING" in this distribution.
*/
#ifndef INCLUDED_SYNC_H
#define INCLUDED_SYNC_H
#ifdef USE_PTHREADS /* Code to compile for threading support */
#include <pthread.h>
/* SYNC_OBJ_TOOL definition must be placed in object to be synced!
* SYNC_OBJ_TOOL_INIT must be called upon of object construction and
* SUNC_OBJ_TOOL_EXIT must be called upon object destruction
*/
#define SYNC_OBJ_TOOL pthread_mutex_t *Sync_mut;
#define SYNC_OBJ_TOOL_INIT(x) SyncObjInit(&((x)->Sync_mut))
#define SYNC_OBJ_TOOL_EXIT(x) SyncObjExit(&((x)->Sync_mut))
/* If we run in non-debug mode, we use inline code for the mutex
* operations. If we run in debug mode, we use functions, because they
* are better to trace in the callframe.
*/
#ifndef NDEBUG
#define LockObj(x) pthread_mutex_lock((x)->Sync_mut)
#define UnlockObj(x) pthread_mutex_unlock((x)->Sync_mut)
#else
#define LockObj(x) lockObj((x)->Sync_mut)
#define UnlockObj(x) unlockObj((x)->Sync_mut)
#endif
void SyncObjInit(pthread_mutex_t **mut);
void SyncObjExit(pthread_mutex_t **mut);
extern void lockObj(pthread_mutex_t *mut);
extern void unlockObj(pthread_mutex_t *mut);
#else /* Code not to compile for threading support */
#define SYNC_OBJ_TOOL
#define SYNC_OBJ_TOOL_INIT
#define SYNC_OBJ_TOOL_EXIT
#define LockObj(x)
#define UnlockObj(x)
#endif
#endif /* #ifndef INCLUDED_SYNC_H */
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