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 1.4 2006/04/05 12:12:23 davidxu Exp $
40 #include "thr_private.h"
42 /* Default mutex attributes. */
43 struct pthread_mutex_attr _pthread_mutexattr_default = {
44 .m_type = PTHREAD_MUTEX_DEFAULT,
45 .m_protocol = PTHREAD_PRIO_NONE,
51 _pthread_mutexattr_init(pthread_mutexattr_t *attr)
54 pthread_mutexattr_t pattr;
56 if ((pattr = (pthread_mutexattr_t)
57 malloc(sizeof(struct pthread_mutex_attr))) == NULL) {
60 memcpy(pattr, &_pthread_mutexattr_default,
61 sizeof(struct pthread_mutex_attr));
69 _pthread_mutexattr_setkind_np(pthread_mutexattr_t *attr, int kind)
72 if (attr == NULL || *attr == NULL) {
76 (*attr)->m_type = kind;
83 _pthread_mutexattr_getkind_np(pthread_mutexattr_t attr)
96 _pthread_mutexattr_settype(pthread_mutexattr_t *attr, int type)
99 if (attr == NULL || *attr == NULL || type >= MUTEX_TYPE_MAX) {
103 (*attr)->m_type = type;
110 _pthread_mutexattr_gettype(pthread_mutexattr_t *attr, int *type)
114 if (attr == NULL || *attr == NULL || (*attr)->m_type >=
118 *type = (*attr)->m_type;
125 _pthread_mutexattr_destroy(pthread_mutexattr_t *attr)
128 if (attr == NULL || *attr == NULL) {
139 _pthread_mutexattr_getpshared(const pthread_mutexattr_t *attr,
143 if (attr == NULL || *attr == NULL)
146 *pshared = PTHREAD_PROCESS_PRIVATE;
151 _pthread_mutexattr_setpshared(pthread_mutexattr_t *attr, int pshared)
154 if (attr == NULL || *attr == NULL)
157 /* Only PTHREAD_PROCESS_PRIVATE is supported. */
158 if (pshared != PTHREAD_PROCESS_PRIVATE)
164 __strong_reference(_pthread_mutexattr_init, pthread_mutexattr_init);
165 __strong_reference(_pthread_mutexattr_setkind_np, pthread_mutexattr_setkind_np);
166 __strong_reference(_pthread_mutexattr_getkind_np, pthread_mutexattr_getkind_np);
167 __strong_reference(_pthread_mutexattr_gettype, pthread_mutexattr_gettype);
168 __strong_reference(_pthread_mutexattr_settype, pthread_mutexattr_settype);
169 __strong_reference(_pthread_mutexattr_destroy, pthread_mutexattr_destroy);