1*418b791dSBob Badour /** 2*418b791dSBob Badour * Copyright (c) 2019, The Linux Foundation. All rights reserved. 3*418b791dSBob Badour * 4*418b791dSBob Badour * Redistribution and use in source and binary forms, with or without 5*418b791dSBob Badour * modification, are permitted provided that the following conditions are 6*418b791dSBob Badour * met: 7*418b791dSBob Badour * * Redistributions of source code must retain the above copyright 8*418b791dSBob Badour * notice, this list of conditions and the following disclaimer. 9*418b791dSBob Badour * * Redistributions in binary form must reproduce the above 10*418b791dSBob Badour * copyright notice, this list of conditions and the following 11*418b791dSBob Badour * disclaimer in the documentation and/or other materials provided 12*418b791dSBob Badour * with the distribution. 13*418b791dSBob Badour * * Neither the name of The Linux Foundation nor the names of its 14*418b791dSBob Badour * contributors may be used to endorse or promote products derived 15*418b791dSBob Badour * from this software without specific prior written permission. 16*418b791dSBob Badour * 17*418b791dSBob Badour * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED 18*418b791dSBob Badour * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 19*418b791dSBob Badour * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT 20*418b791dSBob Badour * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS 21*418b791dSBob Badour * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 22*418b791dSBob Badour * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 23*418b791dSBob Badour * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 24*418b791dSBob Badour * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 25*418b791dSBob Badour * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE 26*418b791dSBob Badour * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN 27*418b791dSBob Badour * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28*418b791dSBob Badour */ 29*418b791dSBob Badour 30*418b791dSBob Badour #ifndef PTHREAD_RW_MUTEX_H 31*418b791dSBob Badour #define PTHREAD_RW_MUTEX_H 32*418b791dSBob Badour 33*418b791dSBob Badour #include <pthread.h> 34*418b791dSBob Badour #include <stdlib.h> 35*418b791dSBob Badour #include <stdio.h> 36*418b791dSBob Badour 37*418b791dSBob Badour /* asserts may be compiled out, this should always be present */ 38*418b791dSBob Badour #define ABORT_FAIL( ff ) \ 39*418b791dSBob Badour do {\ 40*418b791dSBob Badour if(! (ff) ) {\ 41*418b791dSBob Badour fprintf(stderr, "assertion \"%s\" failed: file \"%s\", line %d\n", #ff, __FILE__, __LINE__);\ 42*418b791dSBob Badour abort();\ 43*418b791dSBob Badour }\ 44*418b791dSBob Badour } while(0) 45*418b791dSBob Badour 46*418b791dSBob Badour #define RW_MUTEX_T pthread_rwlock_t 47*418b791dSBob Badour #define RW_MUTEX_CTOR(mut) ABORT_FAIL(0 == pthread_rwlock_init( & (mut), 0)) 48*418b791dSBob Badour #define RW_MUTEX_LOCK_READ(mut) ABORT_FAIL(0 == pthread_rwlock_rdlock( & (mut))) 49*418b791dSBob Badour 50*418b791dSBob Badour #define RW_MUTEX_UNLOCK_READ(mut) ABORT_FAIL(0 == pthread_rwlock_unlock( & (mut))) 51*418b791dSBob Badour 52*418b791dSBob Badour #define RW_MUTEX_LOCK_WRITE(mut) ABORT_FAIL(0 == pthread_rwlock_wrlock( & (mut))) 53*418b791dSBob Badour 54*418b791dSBob Badour #define RW_MUTEX_UNLOCK_WRITE(mut) ABORT_FAIL(0 == pthread_rwlock_unlock( & (mut))) 55*418b791dSBob Badour 56*418b791dSBob Badour #define RW_MUTEX_DTOR(mut) ABORT_FAIL(0 == pthread_rwlock_destroy( & (mut))) 57*418b791dSBob Badour 58*418b791dSBob Badour 59*418b791dSBob Badour #endif //PTHREAD_RW_MUTEX_H 60