2 * Copyright (c) 1998 Alex Nash
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * $FreeBSD: src/lib/libpthread/thread/thr_rwlockattr.c,v 1.8 2002/09/16 08:45:35 mini Exp $
27 * $DragonFly: src/lib/libthread_xu/thread/thr_rwlockattr.c,v 1.1 2005/02/01 12:38:27 davidxu Exp $
34 #include "thr_private.h"
36 __weak_reference(_pthread_rwlockattr_destroy, pthread_rwlockattr_destroy);
37 __weak_reference(_pthread_rwlockattr_getpshared, pthread_rwlockattr_getpshared);
38 __weak_reference(_pthread_rwlockattr_init, pthread_rwlockattr_init);
39 __weak_reference(_pthread_rwlockattr_setpshared, pthread_rwlockattr_setpshared);
42 _pthread_rwlockattr_destroy(pthread_rwlockattr_t *rwlockattr)
44 pthread_rwlockattr_t prwlockattr;
46 if (rwlockattr == NULL)
49 prwlockattr = *rwlockattr;
51 if (prwlockattr == NULL)
60 _pthread_rwlockattr_getpshared(const pthread_rwlockattr_t *rwlockattr,
63 *pshared = (*rwlockattr)->pshared;
69 _pthread_rwlockattr_init(pthread_rwlockattr_t *rwlockattr)
71 pthread_rwlockattr_t prwlockattr;
73 if (rwlockattr == NULL)
76 prwlockattr = (pthread_rwlockattr_t)
77 malloc(sizeof(struct pthread_rwlockattr));
79 if (prwlockattr == NULL)
82 prwlockattr->pshared = PTHREAD_PROCESS_PRIVATE;
83 *rwlockattr = prwlockattr;
89 _pthread_rwlockattr_setpshared(pthread_rwlockattr_t *rwlockattr, int pshared)
91 /* Only PTHREAD_PROCESS_PRIVATE is supported. */
92 if (pshared != PTHREAD_PROCESS_PRIVATE)
95 (*rwlockattr)->pshared = pshared;