2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2011 Ed Schouten <ed@FreeBSD.org>
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 #include <sys/cdefs.h>
32 __FBSDID("$FreeBSD$");
40 mtx_destroy(mtx_t *mtx)
43 (void)pthread_mutex_destroy(mtx);
47 mtx_init(mtx_t *mtx, int type)
49 pthread_mutexattr_t attr;
55 mt = PTHREAD_MUTEX_NORMAL;
57 case mtx_plain | mtx_recursive:
58 case mtx_timed | mtx_recursive:
59 mt = PTHREAD_MUTEX_RECURSIVE;
65 if (pthread_mutexattr_init(&attr) != 0)
67 if (pthread_mutexattr_settype(&attr, mt) != 0)
69 if (pthread_mutex_init(mtx, &attr) != 0)
71 return (thrd_success);
78 if (pthread_mutex_lock(mtx) != 0)
80 return (thrd_success);
84 mtx_timedlock(mtx_t *restrict mtx, const struct timespec *restrict ts)
87 switch (pthread_mutex_timedlock(mtx, ts)) {
89 return (thrd_success);
91 return (thrd_timedout);
98 mtx_trylock(mtx_t *mtx)
101 switch (pthread_mutex_trylock(mtx)) {
103 return (thrd_success);
112 mtx_unlock(mtx_t *mtx)
115 if (pthread_mutex_unlock(mtx) != 0)
117 return (thrd_success);