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
27#include <sys/cdefs.h>
28__FBSDID("$FreeBSD: releng/11.0/lib/libthr/thread/thr_rwlockattr.c 297706 2016-04-08 11:15:26Z kib $");
29
30#include "namespace.h"
31#include <errno.h>
32#include <stdlib.h>
33#include <pthread.h>
34#include "un-namespace.h"
35
36#include "thr_private.h"
37
38__weak_reference(_pthread_rwlockattr_destroy, pthread_rwlockattr_destroy);
39__weak_reference(_pthread_rwlockattr_getpshared, pthread_rwlockattr_getpshared);
40__weak_reference(_pthread_rwlockattr_init, pthread_rwlockattr_init);
41__weak_reference(_pthread_rwlockattr_setpshared, pthread_rwlockattr_setpshared);
42
43int
44_pthread_rwlockattr_destroy(pthread_rwlockattr_t *rwlockattr)
45{
46	pthread_rwlockattr_t prwlockattr;
47
48	if (rwlockattr == NULL)
49		return (EINVAL);
50	prwlockattr = *rwlockattr;
51	if (prwlockattr == NULL)
52		return (EINVAL);
53	free(prwlockattr);
54	return (0);
55}
56
57int
58_pthread_rwlockattr_getpshared(const pthread_rwlockattr_t *rwlockattr,
59    int *pshared)
60{
61
62	*pshared = (*rwlockattr)->pshared;
63	return (0);
64}
65
66int
67_pthread_rwlockattr_init(pthread_rwlockattr_t *rwlockattr)
68{
69	pthread_rwlockattr_t prwlockattr;
70
71	if (rwlockattr == NULL)
72		return (EINVAL);
73
74	prwlockattr = malloc(sizeof(struct pthread_rwlockattr));
75	if (prwlockattr == NULL)
76		return (ENOMEM);
77
78	prwlockattr->pshared = PTHREAD_PROCESS_PRIVATE;
79	*rwlockattr = prwlockattr;
80	return (0);
81}
82
83int
84_pthread_rwlockattr_setpshared(pthread_rwlockattr_t *rwlockattr, int pshared)
85{
86
87	if (pshared != PTHREAD_PROCESS_PRIVATE &&
88	    pshared != PTHREAD_PROCESS_SHARED)
89		return (EINVAL);
90	(*rwlockattr)->pshared = pshared;
91	return (0);
92}
93