1 /*-
2 * Copyright (c) 2011 Ed Schouten <ed@FreeBSD.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
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.
13 *
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
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD$
27 */
28
29 #include <sys/cdefs.h>
30 __FBSDID("$FreeBSD$");
31
32 #include <errno.h>
33 #include <pthread.h>
34
35 #include "threads.h"
36
37 int
cnd_broadcast(cnd_t * cond)38 cnd_broadcast(cnd_t *cond)
39 {
40
41 if (pthread_cond_broadcast(cond) != 0)
42 return (thrd_error);
43 return (thrd_success);
44 }
45
46 void
cnd_destroy(cnd_t * cond)47 cnd_destroy(cnd_t *cond)
48 {
49
50 (void)pthread_cond_destroy(cond);
51 }
52
53 int
cnd_init(cnd_t * cond)54 cnd_init(cnd_t *cond)
55 {
56
57 switch (pthread_cond_init(cond, NULL)) {
58 case 0:
59 return (thrd_success);
60 case ENOMEM:
61 return (thrd_nomem);
62 default:
63 return (thrd_error);
64 }
65 }
66
67 int
cnd_signal(cnd_t * cond)68 cnd_signal(cnd_t *cond)
69 {
70
71 if (pthread_cond_signal(cond) != 0)
72 return (thrd_error);
73 return (thrd_success);
74 }
75
76 int
cnd_timedwait(cnd_t * restrict cond,mtx_t * restrict mtx,const struct timespec * restrict ts)77 cnd_timedwait(cnd_t *restrict cond, mtx_t *restrict mtx,
78 const struct timespec *restrict ts)
79 {
80
81 switch (pthread_cond_timedwait(cond, mtx, ts)) {
82 case 0:
83 return (thrd_success);
84 case ETIMEDOUT:
85 return (thrd_timedout);
86 default:
87 return (thrd_error);
88 }
89 }
90
91 int
cnd_wait(cnd_t * cond,mtx_t * mtx)92 cnd_wait(cnd_t *cond, mtx_t *mtx)
93 {
94
95 if (pthread_cond_wait(cond, mtx) != 0)
96 return (thrd_error);
97 return (thrd_success);
98 }
99