2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2009-2010 The FreeBSD Foundation
7 * This software was developed by Pawel Jakub Dawidek under sponsorship from
8 * the FreeBSD Foundation.
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
39 #include <pthread_np.h>
47 #define PJDLOG_ASSERT(...) assert(__VA_ARGS__)
51 mtx_init(pthread_mutex_t *lock) __requires_unlocked(*lock)
55 error = pthread_mutex_init(lock, NULL);
56 PJDLOG_ASSERT(error == 0);
59 mtx_destroy(pthread_mutex_t *lock) __requires_unlocked(*lock)
63 error = pthread_mutex_destroy(lock);
64 PJDLOG_ASSERT(error == 0);
67 mtx_lock(pthread_mutex_t *lock) __locks_exclusive(*lock)
71 error = pthread_mutex_lock(lock);
72 PJDLOG_ASSERT(error == 0);
75 mtx_trylock(pthread_mutex_t *lock) __trylocks_exclusive(true, *lock)
79 error = pthread_mutex_trylock(lock);
80 PJDLOG_ASSERT(error == 0 || error == EBUSY);
84 mtx_unlock(pthread_mutex_t *lock) __unlocks(*lock)
88 error = pthread_mutex_unlock(lock);
89 PJDLOG_ASSERT(error == 0);
92 mtx_owned(pthread_mutex_t *lock)
95 return (pthread_mutex_isowned_np(lock) != 0);
99 rw_init(pthread_rwlock_t *lock) __requires_unlocked(*lock)
103 error = pthread_rwlock_init(lock, NULL);
104 PJDLOG_ASSERT(error == 0);
107 rw_destroy(pthread_rwlock_t *lock) __requires_unlocked(*lock)
111 error = pthread_rwlock_destroy(lock);
112 PJDLOG_ASSERT(error == 0);
115 rw_rlock(pthread_rwlock_t *lock) __locks_shared(*lock)
119 error = pthread_rwlock_rdlock(lock);
120 PJDLOG_ASSERT(error == 0);
123 rw_wlock(pthread_rwlock_t *lock) __locks_exclusive(*lock)
127 error = pthread_rwlock_wrlock(lock);
128 PJDLOG_ASSERT(error == 0);
131 rw_unlock(pthread_rwlock_t *lock) __unlocks(*lock)
135 error = pthread_rwlock_unlock(lock);
136 PJDLOG_ASSERT(error == 0);
140 cv_init(pthread_cond_t *cv)
142 pthread_condattr_t attr;
145 error = pthread_condattr_init(&attr);
146 PJDLOG_ASSERT(error == 0);
147 error = pthread_condattr_setclock(&attr, CLOCK_MONOTONIC);
148 PJDLOG_ASSERT(error == 0);
149 error = pthread_cond_init(cv, &attr);
150 PJDLOG_ASSERT(error == 0);
151 error = pthread_condattr_destroy(&attr);
152 PJDLOG_ASSERT(error == 0);
155 cv_wait(pthread_cond_t *cv, pthread_mutex_t *lock) __requires_exclusive(*lock)
159 error = pthread_cond_wait(cv, lock);
160 PJDLOG_ASSERT(error == 0);
163 cv_timedwait(pthread_cond_t *cv, pthread_mutex_t *lock, int timeout)
164 __requires_exclusive(*lock)
174 error = clock_gettime(CLOCK_MONOTONIC, &ts);
175 PJDLOG_ASSERT(error == 0);
176 ts.tv_sec += timeout;
177 error = pthread_cond_timedwait(cv, lock, &ts);
178 PJDLOG_ASSERT(error == 0 || error == ETIMEDOUT);
179 return (error == ETIMEDOUT);
182 cv_signal(pthread_cond_t *cv)
186 error = pthread_cond_signal(cv);
187 PJDLOG_ASSERT(error == 0);
190 cv_broadcast(pthread_cond_t *cv)
194 error = pthread_cond_broadcast(cv);
195 PJDLOG_ASSERT(error == 0);
197 #endif /* !_SYNCH_H_ */