1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2011 Ed Schouten <ed@FreeBSD.org>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
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.
15 *
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
26 * SUCH DAMAGE.
27 */
28
29 #include <sys/cdefs.h>
30 #include <errno.h>
31 #include <pthread.h>
32
33 #include "threads.h"
34
35 int
cnd_broadcast(cnd_t * cond)36 cnd_broadcast(cnd_t *cond)
37 {
38
39 if (pthread_cond_broadcast(cond) != 0)
40 return (thrd_error);
41 return (thrd_success);
42 }
43
44 void
cnd_destroy(cnd_t * cond)45 cnd_destroy(cnd_t *cond)
46 {
47
48 (void)pthread_cond_destroy(cond);
49 }
50
51 int
cnd_init(cnd_t * cond)52 cnd_init(cnd_t *cond)
53 {
54
55 switch (pthread_cond_init(cond, NULL)) {
56 case 0:
57 return (thrd_success);
58 case ENOMEM:
59 return (thrd_nomem);
60 default:
61 return (thrd_error);
62 }
63 }
64
65 int
cnd_signal(cnd_t * cond)66 cnd_signal(cnd_t *cond)
67 {
68
69 if (pthread_cond_signal(cond) != 0)
70 return (thrd_error);
71 return (thrd_success);
72 }
73
74 int
cnd_timedwait(cnd_t * restrict cond,mtx_t * restrict mtx,const struct timespec * restrict ts)75 cnd_timedwait(cnd_t *restrict cond, mtx_t *restrict mtx,
76 const struct timespec *restrict ts)
77 {
78
79 switch (pthread_cond_timedwait(cond, mtx, ts)) {
80 case 0:
81 return (thrd_success);
82 case ETIMEDOUT:
83 return (thrd_timedout);
84 default:
85 return (thrd_error);
86 }
87 }
88
89 int
cnd_wait(cnd_t * cond,mtx_t * mtx)90 cnd_wait(cnd_t *cond, mtx_t *mtx)
91 {
92
93 if (pthread_cond_wait(cond, mtx) != 0)
94 return (thrd_error);
95 return (thrd_success);
96 }
97