/usr/include/kannel/gwlib/gw-rwlock.h is in kannel-dev 1.4.3-2+b2.
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* The Kannel Software License, Version 1.0
*
* Copyright (c) 2001-2009 Kannel Group
* Copyright (c) 1998-2001 WapIT Ltd.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
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*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* distribution.
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* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Kannel Group (http://www.kannel.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Kannel" and "Kannel Group" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please
* contact org@kannel.org.
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* 5. Products derived from this software may not be called "Kannel",
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* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Kannel Group. For more information on
* the Kannel Group, please see <http://www.kannel.org/>.
*
* Portions of this software are based upon software originally written at
* WapIT Ltd., Helsinki, Finland for the Kannel project.
*/
/*
* gw-rwlock.h: Prototypes for Reader/Writer Lock.
*
* Alexander Malysh <amalysh@kannel.org>, initial version 2004
*/
#ifndef GW_RWLOCK_H
#define GW_RWLOCK_H
#include "gw-config.h"
#ifndef HAVE_PTHREAD_RWLOCK
#include "list.h"
#else
#include <pthread.h>
#endif
typedef struct {
#ifdef HAVE_PTHREAD_RWLOCK
pthread_rwlock_t rwlock;
#else
List *rwlock;
long writer;
#endif
int dynamic;
} RWLock;
RWLock *gw_rwlock_create(void);
void gw_rwlock_init_static(RWLock *lock);
void gw_rwlock_destroy(RWLock *lock);
int gw_rwlock_rdlock(RWLock *lock);
int gw_rwlock_unlock(RWLock *lock);
int gw_rwlock_wrlock(RWLock *lock);
#endif
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