2 * Copyright (c) 1996 Jeffrey Hsu <hsu@freebsd.org>.
3 * Copyright (c) 1997 John Birrell <jb@cimlogic.com.au>.
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. All advertising materials mentioning features or use of this software
15 * must display the following acknowledgement:
16 * This product includes software developed by John Birrell.
17 * 4. Neither the name of the author nor the names of any co-contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * $DragonFly: src/lib/libthread_xu/thread/thr_mutexattr.c,v 1.5 2006/04/06 13:03:09 davidxu Exp $
36 #include "namespace.h"
41 #include <pthread_np.h>
42 #include "un-namespace.h"
44 #include "thr_private.h"
46 /* Default mutex attributes. */
47 struct pthread_mutex_attr _pthread_mutexattr_default = {
48 .m_type = PTHREAD_MUTEX_DEFAULT,
49 .m_protocol = PTHREAD_PRIO_NONE,
55 _pthread_mutexattr_init(pthread_mutexattr_t *attr)
58 pthread_mutexattr_t pattr;
60 if ((pattr = (pthread_mutexattr_t)
61 malloc(sizeof(struct pthread_mutex_attr))) == NULL) {
64 memcpy(pattr, &_pthread_mutexattr_default,
65 sizeof(struct pthread_mutex_attr));
73 _pthread_mutexattr_setkind_np(pthread_mutexattr_t *attr, int kind)
76 if (attr == NULL || *attr == NULL) {
80 (*attr)->m_type = kind;
87 _pthread_mutexattr_getkind_np(pthread_mutexattr_t attr)
100 _pthread_mutexattr_settype(pthread_mutexattr_t *attr, int type)
103 if (attr == NULL || *attr == NULL || type >= MUTEX_TYPE_MAX) {
107 (*attr)->m_type = type;
114 _pthread_mutexattr_gettype(pthread_mutexattr_t *attr, int *type)
118 if (attr == NULL || *attr == NULL || (*attr)->m_type >=
122 *type = (*attr)->m_type;
129 _pthread_mutexattr_destroy(pthread_mutexattr_t *attr)
132 if (attr == NULL || *attr == NULL) {
143 _pthread_mutexattr_getpshared(const pthread_mutexattr_t *attr,
147 if (attr == NULL || *attr == NULL)
150 *pshared = PTHREAD_PROCESS_PRIVATE;
155 _pthread_mutexattr_setpshared(pthread_mutexattr_t *attr, int pshared)
158 if (attr == NULL || *attr == NULL)
161 /* Only PTHREAD_PROCESS_PRIVATE is supported. */
162 if (pshared != PTHREAD_PROCESS_PRIVATE)
168 __strong_reference(_pthread_mutexattr_init, pthread_mutexattr_init);
169 __strong_reference(_pthread_mutexattr_setkind_np, pthread_mutexattr_setkind_np);
170 __strong_reference(_pthread_mutexattr_getkind_np, pthread_mutexattr_getkind_np);
171 __strong_reference(_pthread_mutexattr_gettype, pthread_mutexattr_gettype);
172 __strong_reference(_pthread_mutexattr_settype, pthread_mutexattr_settype);
173 __strong_reference(_pthread_mutexattr_destroy, pthread_mutexattr_destroy);