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