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: src/lib/libpthread/thread/thr_barrierattr.c,v 1.1 2003/09/04 14:06:43 davidxu Exp $
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 int
40 _pthread_barrierattr_destroy(pthread_barrierattr_t *attr)
41 {
42 
43 	if (attr == NULL || *attr == NULL)
44 		return (EINVAL);
45 
46 	free(*attr);
47 	return (0);
48 }
49 
50 int
51 _pthread_barrierattr_getpshared(const pthread_barrierattr_t *attr,
52     int *pshared)
53 {
54 
55 	if (attr == NULL || *attr == NULL)
56 		return (EINVAL);
57 
58 	*pshared = (*attr)->pshared;
59 	return (0);
60 }
61 
62 int
63 _pthread_barrierattr_init(pthread_barrierattr_t *attr)
64 {
65 
66 	if (attr == NULL)
67 		return (EINVAL);
68 
69 	if ((*attr = malloc(sizeof(struct pthread_barrierattr))) == NULL)
70 		return (ENOMEM);
71 
72 	(*attr)->pshared = PTHREAD_PROCESS_PRIVATE;
73 	return (0);
74 }
75 
76 int
77 _pthread_barrierattr_setpshared(pthread_barrierattr_t *attr, int pshared)
78 {
79 
80 	if (attr == NULL || *attr == NULL)
81 		return (EINVAL);
82 
83 	/* Only PTHREAD_PROCESS_PRIVATE is supported. */
84 	if (pshared != PTHREAD_PROCESS_PRIVATE)
85 		return (EINVAL);
86 
87 	(*attr)->pshared = pshared;
88 	return (0);
89 }
90 
91 __strong_reference(_pthread_barrierattr_destroy, pthread_barrierattr_destroy);
92 __strong_reference(_pthread_barrierattr_init, pthread_barrierattr_init);
93 __strong_reference(_pthread_barrierattr_setpshared,
94 	pthread_barrierattr_setpshared);
95 __strong_reference(_pthread_barrierattr_getpshared,
96 	pthread_barrierattr_getpshared);
97