1 /* 2 * Copyright (c) 2015, Aleksey Demakov 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are met: 7 * 8 * * Redistributions of source code must retain the above copyright notice, this 9 * list of conditions and the following disclaimer. 10 * 11 * * Redistributions in binary form must reproduce the above copyright notice, 12 * this list of conditions and the following disclaimer in the documentation 13 * and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 18 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 21 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 22 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 23 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 #pragma once 28 #ifndef IWTH_H 29 #define IWTH_H 30 31 #include "basedefs.h" 32 #include <pthread.h> 33 34 #if defined(__APPLE__) || (defined(__ANDROID_API__) && __ANDROID_API__ < 24) 35 36 #ifdef __cplusplus 37 extern "C" { 38 #endif 39 40 #if !defined(PTHREAD_BARRIER_SERIAL_THREAD) 41 # define PTHREAD_BARRIER_SERIAL_THREAD (1) 42 #endif 43 44 #if !defined(PTHREAD_PROCESS_PRIVATE) 45 # define PTHREAD_PROCESS_PRIVATE (42) 46 #endif 47 #if !defined(PTHREAD_PROCESS_SHARED) 48 # define PTHREAD_PROCESS_SHARED (43) 49 #endif 50 51 typedef struct { 52 char noop; 53 } pthread_barrierattr_t; 54 55 typedef struct { 56 pthread_mutex_t mutex; 57 pthread_cond_t cond; 58 unsigned int limit; 59 unsigned int count; 60 unsigned int phase; 61 } pthread_barrier_t; 62 63 IW_EXPORT int pthread_barrierattr_init(pthread_barrierattr_t *attr); 64 IW_EXPORT int pthread_barrierattr_destroy(pthread_barrierattr_t *attr); 65 66 IW_EXPORT int pthread_barrierattr_getpshared(const pthread_barrierattr_t *restrict attr, 67 int *restrict pshared); 68 IW_EXPORT int pthread_barrierattr_setpshared(pthread_barrierattr_t *attr, 69 int pshared); 70 71 IW_EXPORT int pthread_barrier_init(pthread_barrier_t *restrict barrier, 72 const pthread_barrierattr_t *restrict attr, 73 unsigned int count); 74 IW_EXPORT int pthread_barrier_destroy(pthread_barrier_t *barrier); 75 76 IW_EXPORT int pthread_barrier_wait(pthread_barrier_t *barrier); 77 78 #ifdef __cplusplus 79 } 80 #endif 81 82 #endif /* __APPLE__ */ 83 84 #endif 85