xref: /freebsd/lib/libthr/thread/thr_sem.c (revision 38f0b757fd84d17d0fc24739a7cda160c4516d81)
1 /*
2  * Copyright (C) 2005 David Xu <davidxu@freebsd.org>.
3  * Copyright (C) 2000 Jason Evans <jasone@freebsd.org>.
4  * All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice(s), this list of conditions and the following disclaimer as
11  *    the first lines of this file unmodified other than the possible
12  *    addition of one or more copyright notices.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice(s), this list of conditions and the following disclaimer in
15  *    the documentation and/or other materials provided with the
16  *    distribution.
17  *
18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``AS IS'' AND ANY
19  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
21  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) BE
22  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
23  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
25  * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
26  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
27  * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
28  * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29  *
30  * $FreeBSD$
31  */
32 
33 #include "namespace.h"
34 #include <sys/types.h>
35 #include <sys/queue.h>
36 #include <errno.h>
37 #include <fcntl.h>
38 #include <pthread.h>
39 #include <stdlib.h>
40 #include <time.h>
41 #include <_semaphore.h>
42 #include "un-namespace.h"
43 
44 #include "thr_private.h"
45 
46 FB10_COMPAT(_sem_init_compat, sem_init);
47 FB10_COMPAT(_sem_destroy_compat, sem_destroy);
48 FB10_COMPAT(_sem_getvalue_compat, sem_getvalue);
49 FB10_COMPAT(_sem_trywait_compat, sem_trywait);
50 FB10_COMPAT(_sem_wait_compat, sem_wait);
51 FB10_COMPAT(_sem_timedwait_compat, sem_timedwait);
52 FB10_COMPAT(_sem_post_compat, sem_post);
53 
54 typedef struct sem *sem_t;
55 
56 extern int _libc_sem_init_compat(sem_t *sem, int pshared, unsigned int value);
57 extern int _libc_sem_destroy_compat(sem_t *sem);
58 extern int _libc_sem_getvalue_compat(sem_t * __restrict sem, int * __restrict sval);
59 extern int _libc_sem_trywait_compat(sem_t *sem);
60 extern int _libc_sem_wait_compat(sem_t *sem);
61 extern int _libc_sem_timedwait_compat(sem_t * __restrict sem,
62     const struct timespec * __restrict abstime);
63 extern int _libc_sem_post_compat(sem_t *sem);
64 
65 int _sem_init_compat(sem_t *sem, int pshared, unsigned int value);
66 int _sem_destroy_compat(sem_t *sem);
67 int _sem_getvalue_compat(sem_t * __restrict sem, int * __restrict sval);
68 int _sem_trywait_compat(sem_t *sem);
69 int _sem_wait_compat(sem_t *sem);
70 int _sem_timedwait_compat(sem_t * __restrict sem,
71     const struct timespec * __restrict abstime);
72 int _sem_post_compat(sem_t *sem);
73 
74 int
75 _sem_init_compat(sem_t *sem, int pshared, unsigned int value)
76 {
77 	return _libc_sem_init_compat(sem, pshared, value);
78 }
79 
80 int
81 _sem_destroy_compat(sem_t *sem)
82 {
83 	return _libc_sem_destroy_compat(sem);
84 }
85 
86 int
87 _sem_getvalue_compat(sem_t * __restrict sem, int * __restrict sval)
88 {
89 	return _libc_sem_getvalue_compat(sem, sval);
90 }
91 
92 int
93 _sem_trywait_compat(sem_t *sem)
94 {
95 	return _libc_sem_trywait_compat(sem);
96 }
97 
98 int
99 _sem_wait_compat(sem_t *sem)
100 {
101 	return _libc_sem_wait_compat(sem);
102 }
103 
104 int
105 _sem_timedwait_compat(sem_t * __restrict sem,
106     const struct timespec * __restrict abstime)
107 {
108 	return _libc_sem_timedwait_compat(sem, abstime);
109 }
110 
111 int
112 _sem_post_compat(sem_t *sem)
113 {
114 	return _libc_sem_post_compat(sem);
115 }
116