2 * Copyright (c) 2009-2010 The FreeBSD Foundation
5 * This software was developed by Pawel Jakub Dawidek under sponsorship from
6 * the FreeBSD Foundation.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
41 mtx_init(pthread_mutex_t *lock)
45 error = pthread_mutex_init(lock, NULL);
49 mtx_lock(pthread_mutex_t *lock)
53 error = pthread_mutex_lock(lock);
57 mtx_trylock(pthread_mutex_t *lock)
61 error = pthread_mutex_trylock(lock);
62 assert(error == 0 || error == EBUSY);
66 mtx_unlock(pthread_mutex_t *lock)
70 error = pthread_mutex_unlock(lock);
75 rw_init(pthread_rwlock_t *lock)
79 error = pthread_rwlock_init(lock, NULL);
83 rw_rlock(pthread_rwlock_t *lock)
87 error = pthread_rwlock_rdlock(lock);
91 rw_wlock(pthread_rwlock_t *lock)
95 error = pthread_rwlock_wrlock(lock);
99 rw_unlock(pthread_rwlock_t *lock)
103 error = pthread_rwlock_unlock(lock);
108 cv_init(pthread_cond_t *cv)
110 pthread_condattr_t attr;
113 error = pthread_condattr_init(&attr);
115 error = pthread_condattr_setclock(&attr, CLOCK_MONOTONIC);
117 error = pthread_cond_init(cv, &attr);
121 cv_wait(pthread_cond_t *cv, pthread_mutex_t *lock)
125 error = pthread_cond_wait(cv, lock);
129 cv_timedwait(pthread_cond_t *cv, pthread_mutex_t *lock, int timeout)
139 error = clock_gettime(CLOCK_MONOTONIC, &ts);
141 ts.tv_sec += timeout;
142 error = pthread_cond_timedwait(cv, lock, &ts);
143 assert(error == 0 || error == ETIMEDOUT);
144 return (error == ETIMEDOUT);
147 cv_signal(pthread_cond_t *cv)
151 error = pthread_cond_signal(cv);
155 cv_broadcast(pthread_cond_t *cv)
159 error = pthread_cond_broadcast(cv);
162 #endif /* !_SYNCH_H_ */