1204076Spjd/*- 2204076Spjd * Copyright (c) 2009-2010 The FreeBSD Foundation 3204076Spjd * All rights reserved. 4204076Spjd * 5204076Spjd * This software was developed by Pawel Jakub Dawidek under sponsorship from 6204076Spjd * the FreeBSD Foundation. 7204076Spjd * 8204076Spjd * Redistribution and use in source and binary forms, with or without 9204076Spjd * modification, are permitted provided that the following conditions 10204076Spjd * are met: 11204076Spjd * 1. Redistributions of source code must retain the above copyright 12204076Spjd * notice, this list of conditions and the following disclaimer. 13204076Spjd * 2. Redistributions in binary form must reproduce the above copyright 14204076Spjd * notice, this list of conditions and the following disclaimer in the 15204076Spjd * documentation and/or other materials provided with the distribution. 16204076Spjd * 17204076Spjd * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND 18204076Spjd * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19204076Spjd * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20204076Spjd * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE 21204076Spjd * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22204076Spjd * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23204076Spjd * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24204076Spjd * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25204076Spjd * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26204076Spjd * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27204076Spjd * SUCH DAMAGE. 28204076Spjd * 29204076Spjd * $FreeBSD$ 30204076Spjd */ 31204076Spjd 32204076Spjd#ifndef _SYNCH_H_ 33204076Spjd#define _SYNCH_H_ 34204076Spjd 35211876Spjd#include <errno.h> 36204076Spjd#include <pthread.h> 37211876Spjd#include <pthread_np.h> 38204076Spjd#include <stdbool.h> 39204076Spjd#include <time.h> 40204076Spjd 41225787Spjd#include <pjdlog.h> 42225787Spjd 43225787Spjd#ifndef PJDLOG_ASSERT 44225787Spjd#include <assert.h> 45225787Spjd#define PJDLOG_ASSERT(...) assert(__VA_ARGS__) 46225787Spjd#endif 47225787Spjd 48204076Spjdstatic __inline void 49204076Spjdmtx_init(pthread_mutex_t *lock) 50204076Spjd{ 51204076Spjd int error; 52204076Spjd 53204076Spjd error = pthread_mutex_init(lock, NULL); 54225787Spjd PJDLOG_ASSERT(error == 0); 55204076Spjd} 56204076Spjdstatic __inline void 57211975Spjdmtx_destroy(pthread_mutex_t *lock) 58211975Spjd{ 59211975Spjd int error; 60211975Spjd 61211975Spjd error = pthread_mutex_destroy(lock); 62225787Spjd PJDLOG_ASSERT(error == 0); 63211975Spjd} 64211975Spjdstatic __inline void 65204076Spjdmtx_lock(pthread_mutex_t *lock) 66204076Spjd{ 67204076Spjd int error; 68204076Spjd 69204076Spjd error = pthread_mutex_lock(lock); 70225787Spjd PJDLOG_ASSERT(error == 0); 71204076Spjd} 72204076Spjdstatic __inline bool 73204076Spjdmtx_trylock(pthread_mutex_t *lock) 74204076Spjd{ 75204076Spjd int error; 76204076Spjd 77204076Spjd error = pthread_mutex_trylock(lock); 78225787Spjd PJDLOG_ASSERT(error == 0 || error == EBUSY); 79204076Spjd return (error == 0); 80204076Spjd} 81204076Spjdstatic __inline void 82204076Spjdmtx_unlock(pthread_mutex_t *lock) 83204076Spjd{ 84204076Spjd int error; 85204076Spjd 86204076Spjd error = pthread_mutex_unlock(lock); 87225787Spjd PJDLOG_ASSERT(error == 0); 88204076Spjd} 89211876Spjdstatic __inline bool 90211876Spjdmtx_owned(pthread_mutex_t *lock) 91211876Spjd{ 92204076Spjd 93211876Spjd return (pthread_mutex_isowned_np(lock) != 0); 94211876Spjd} 95211876Spjd 96204076Spjdstatic __inline void 97204076Spjdrw_init(pthread_rwlock_t *lock) 98204076Spjd{ 99204076Spjd int error; 100204076Spjd 101204076Spjd error = pthread_rwlock_init(lock, NULL); 102225787Spjd PJDLOG_ASSERT(error == 0); 103204076Spjd} 104204076Spjdstatic __inline void 105211975Spjdrw_destroy(pthread_rwlock_t *lock) 106211975Spjd{ 107211975Spjd int error; 108211975Spjd 109211975Spjd error = pthread_rwlock_destroy(lock); 110225787Spjd PJDLOG_ASSERT(error == 0); 111211975Spjd} 112211975Spjdstatic __inline void 113204076Spjdrw_rlock(pthread_rwlock_t *lock) 114204076Spjd{ 115204076Spjd int error; 116204076Spjd 117204076Spjd error = pthread_rwlock_rdlock(lock); 118225787Spjd PJDLOG_ASSERT(error == 0); 119204076Spjd} 120204076Spjdstatic __inline void 121204076Spjdrw_wlock(pthread_rwlock_t *lock) 122204076Spjd{ 123204076Spjd int error; 124204076Spjd 125204076Spjd error = pthread_rwlock_wrlock(lock); 126225787Spjd PJDLOG_ASSERT(error == 0); 127204076Spjd} 128204076Spjdstatic __inline void 129204076Spjdrw_unlock(pthread_rwlock_t *lock) 130204076Spjd{ 131204076Spjd int error; 132204076Spjd 133204076Spjd error = pthread_rwlock_unlock(lock); 134225787Spjd PJDLOG_ASSERT(error == 0); 135204076Spjd} 136204076Spjd 137204076Spjdstatic __inline void 138204076Spjdcv_init(pthread_cond_t *cv) 139204076Spjd{ 140204076Spjd pthread_condattr_t attr; 141204076Spjd int error; 142204076Spjd 143204076Spjd error = pthread_condattr_init(&attr); 144225787Spjd PJDLOG_ASSERT(error == 0); 145204076Spjd error = pthread_condattr_setclock(&attr, CLOCK_MONOTONIC); 146225787Spjd PJDLOG_ASSERT(error == 0); 147204076Spjd error = pthread_cond_init(cv, &attr); 148225787Spjd PJDLOG_ASSERT(error == 0); 149214274Spjd error = pthread_condattr_destroy(&attr); 150225787Spjd PJDLOG_ASSERT(error == 0); 151204076Spjd} 152204076Spjdstatic __inline void 153204076Spjdcv_wait(pthread_cond_t *cv, pthread_mutex_t *lock) 154204076Spjd{ 155204076Spjd int error; 156204076Spjd 157204076Spjd error = pthread_cond_wait(cv, lock); 158225787Spjd PJDLOG_ASSERT(error == 0); 159204076Spjd} 160204076Spjdstatic __inline bool 161204076Spjdcv_timedwait(pthread_cond_t *cv, pthread_mutex_t *lock, int timeout) 162204076Spjd{ 163204076Spjd struct timespec ts; 164204076Spjd int error; 165204076Spjd 166204076Spjd if (timeout == 0) { 167204076Spjd cv_wait(cv, lock); 168204076Spjd return (false); 169204076Spjd } 170204076Spjd 171236919Shselasky error = clock_gettime(CLOCK_MONOTONIC, &ts); 172225787Spjd PJDLOG_ASSERT(error == 0); 173204076Spjd ts.tv_sec += timeout; 174204076Spjd error = pthread_cond_timedwait(cv, lock, &ts); 175225787Spjd PJDLOG_ASSERT(error == 0 || error == ETIMEDOUT); 176204076Spjd return (error == ETIMEDOUT); 177204076Spjd} 178204076Spjdstatic __inline void 179204076Spjdcv_signal(pthread_cond_t *cv) 180204076Spjd{ 181204076Spjd int error; 182204076Spjd 183204076Spjd error = pthread_cond_signal(cv); 184225787Spjd PJDLOG_ASSERT(error == 0); 185204076Spjd} 186204076Spjdstatic __inline void 187204076Spjdcv_broadcast(pthread_cond_t *cv) 188204076Spjd{ 189204076Spjd int error; 190204076Spjd 191204076Spjd error = pthread_cond_broadcast(cv); 192225787Spjd PJDLOG_ASSERT(error == 0); 193204076Spjd} 194204076Spjd#endif /* !_SYNCH_H_ */ 195