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/*
* Copyright (c) 2017, The Linux Foundation. All rights reserved.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* 3. Neither the name of the copyright holder nor the names of its contributors
* may be used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef PTHREAD_RW_MUTEX_H
#define PTHREAD_RW_MUTEX_H
#include <pthread.h>
#include <stdlib.h>
#include <stdio.h>
/* asserts may be compiled out, this should always be present */
#define ABORT_FAIL( ff ) \
do {\
if(! (ff) ) {\
fprintf(stderr, "assertion \"%s\" failed: file \"%s\", line %d\n", #ff, __FILE__, __LINE__);\
abort();\
}\
} while(0)
#define RW_MUTEX_T pthread_rwlock_t
#define RW_MUTEX_CTOR(mut) ABORT_FAIL(0 == pthread_rwlock_init( & (mut), 0))
#define RW_MUTEX_LOCK_READ(mut) ABORT_FAIL(0 == pthread_rwlock_rdlock( & (mut)))
#define RW_MUTEX_UNLOCK_READ(mut) ABORT_FAIL(0 == pthread_rwlock_unlock( & (mut)))
#define RW_MUTEX_LOCK_WRITE(mut) ABORT_FAIL(0 == pthread_rwlock_wrlock( & (mut)))
#define RW_MUTEX_UNLOCK_WRITE(mut) ABORT_FAIL(0 == pthread_rwlock_unlock( & (mut)))
#define RW_MUTEX_DTOR(mut) ABORT_FAIL(0 == pthread_rwlock_destroy( & (mut)))
#endif //PTHREAD_RW_MUTEX_H
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