1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2011 Ed Schouten <[email protected]>
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 * $FreeBSD$
29 */
30
31 #include <sys/cdefs.h>
32 __FBSDID("$FreeBSD$");
33
34 #include <errno.h>
35 #include <pthread.h>
36
37 #include "threads.h"
38
39 int
cnd_broadcast(cnd_t * cond)40 cnd_broadcast(cnd_t *cond)
41 {
42
43 if (pthread_cond_broadcast(cond) != 0)
44 return (thrd_error);
45 return (thrd_success);
46 }
47
48 void
cnd_destroy(cnd_t * cond)49 cnd_destroy(cnd_t *cond)
50 {
51
52 (void)pthread_cond_destroy(cond);
53 }
54
55 int
cnd_init(cnd_t * cond)56 cnd_init(cnd_t *cond)
57 {
58
59 switch (pthread_cond_init(cond, NULL)) {
60 case 0:
61 return (thrd_success);
62 case ENOMEM:
63 return (thrd_nomem);
64 default:
65 return (thrd_error);
66 }
67 }
68
69 int
cnd_signal(cnd_t * cond)70 cnd_signal(cnd_t *cond)
71 {
72
73 if (pthread_cond_signal(cond) != 0)
74 return (thrd_error);
75 return (thrd_success);
76 }
77
78 int
cnd_timedwait(cnd_t * restrict cond,mtx_t * restrict mtx,const struct timespec * restrict ts)79 cnd_timedwait(cnd_t *restrict cond, mtx_t *restrict mtx,
80 const struct timespec *restrict ts)
81 {
82
83 switch (pthread_cond_timedwait(cond, mtx, ts)) {
84 case 0:
85 return (thrd_success);
86 case ETIMEDOUT:
87 return (thrd_timedout);
88 default:
89 return (thrd_error);
90 }
91 }
92
93 int
cnd_wait(cnd_t * cond,mtx_t * mtx)94 cnd_wait(cnd_t *cond, mtx_t *mtx)
95 {
96
97 if (pthread_cond_wait(cond, mtx) != 0)
98 return (thrd_error);
99 return (thrd_success);
100 }
101