1/*-
2 * Copyright (c) 1998 Alex Nash
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, 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.
13 *
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
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD: releng/10.3/lib/libkse/thread/thr_rwlockattr.c 174689 2007-12-16 23:29:57Z deischen $
27 */
28
29#include "namespace.h"
30#include <errno.h>
31#include <stdlib.h>
32#include <pthread.h>
33#include "un-namespace.h"
34#include "thr_private.h"
35
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);
40
41int
42_pthread_rwlockattr_destroy(pthread_rwlockattr_t *rwlockattr)
43{
44	pthread_rwlockattr_t prwlockattr;
45
46	if (rwlockattr == NULL)
47		return(EINVAL);
48
49	prwlockattr = *rwlockattr;
50
51	if (prwlockattr == NULL)
52		return(EINVAL);
53
54	free(prwlockattr);
55
56	return(0);
57}
58
59int
60_pthread_rwlockattr_getpshared(const pthread_rwlockattr_t *rwlockattr,
61	int *pshared)
62{
63	*pshared = (*rwlockattr)->pshared;
64
65	return(0);
66}
67
68int
69_pthread_rwlockattr_init(pthread_rwlockattr_t *rwlockattr)
70{
71	pthread_rwlockattr_t prwlockattr;
72
73	if (rwlockattr == NULL)
74		return(EINVAL);
75
76	prwlockattr = (pthread_rwlockattr_t)
77		malloc(sizeof(struct pthread_rwlockattr));
78
79	if (prwlockattr == NULL)
80		return(ENOMEM);
81
82	prwlockattr->pshared 	= PTHREAD_PROCESS_PRIVATE;
83	*rwlockattr		= prwlockattr;
84
85	return(0);
86}
87
88int
89_pthread_rwlockattr_setpshared(pthread_rwlockattr_t *rwlockattr, int pshared)
90{
91	/* Only PTHREAD_PROCESS_PRIVATE is supported. */
92	if (pshared != PTHREAD_PROCESS_PRIVATE)
93		return(EINVAL);
94
95	(*rwlockattr)->pshared = pshared;
96
97	return(0);
98}
99
100