1 /*
2 * Copyright (c) 2003 David Xu <davidxu@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(s), this list of conditions and the following disclaimer as
10 * the first lines of this file unmodified other than the possible
11 * addition of one or more copyright notices.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice(s), 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 COPYRIGHT HOLDER(S) ``AS IS'' AND ANY
17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) BE LIABLE FOR ANY
20 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
22 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
23 * 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 SUCH
26 * DAMAGE.
27 *
28 * $FreeBSD: stable/9/lib/libthr/thread/thr_barrierattr.c 157457 2006-04-04 02:57:49Z davidxu $
29 */
30
31 #include "namespace.h"
32 #include <errno.h>
33 #include <stdlib.h>
34 #include <pthread.h>
35 #include "un-namespace.h"
36
37 #include "thr_private.h"
38
39 __weak_reference(_pthread_barrierattr_destroy, pthread_barrierattr_destroy);
40 __weak_reference(_pthread_barrierattr_init, pthread_barrierattr_init);
41 __weak_reference(_pthread_barrierattr_setpshared,
42 pthread_barrierattr_setpshared);
43 __weak_reference(_pthread_barrierattr_getpshared,
44 pthread_barrierattr_getpshared);
45
46 int
_pthread_barrierattr_destroy(pthread_barrierattr_t * attr)47 _pthread_barrierattr_destroy(pthread_barrierattr_t *attr)
48 {
49
50 if (attr == NULL || *attr == NULL)
51 return (EINVAL);
52
53 free(*attr);
54 return (0);
55 }
56
57 int
_pthread_barrierattr_getpshared(const pthread_barrierattr_t * attr,int * pshared)58 _pthread_barrierattr_getpshared(const pthread_barrierattr_t *attr,
59 int *pshared)
60 {
61
62 if (attr == NULL || *attr == NULL)
63 return (EINVAL);
64
65 *pshared = (*attr)->pshared;
66 return (0);
67 }
68
69 int
_pthread_barrierattr_init(pthread_barrierattr_t * attr)70 _pthread_barrierattr_init(pthread_barrierattr_t *attr)
71 {
72
73 if (attr == NULL)
74 return (EINVAL);
75
76 if ((*attr = malloc(sizeof(struct pthread_barrierattr))) == NULL)
77 return (ENOMEM);
78
79 (*attr)->pshared = PTHREAD_PROCESS_PRIVATE;
80 return (0);
81 }
82
83 int
_pthread_barrierattr_setpshared(pthread_barrierattr_t * attr,int pshared)84 _pthread_barrierattr_setpshared(pthread_barrierattr_t *attr, int pshared)
85 {
86
87 if (attr == NULL || *attr == NULL)
88 return (EINVAL);
89
90 /* Only PTHREAD_PROCESS_PRIVATE is supported. */
91 if (pshared != PTHREAD_PROCESS_PRIVATE)
92 return (EINVAL);
93
94 (*attr)->pshared = pshared;
95 return (0);
96 }
97