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: src/lib/libpthread/thread/thr_rwlockattr.c,v 1.8 2002/09/16 08:45:35 mini Exp $
27 */
28
29 #include "namespace.h"
30 #include <errno.h>
31 #include <stdlib.h>
32 #include <pthread.h>
33 #include "un-namespace.h"
34
35 #include "thr_private.h"
36
37 int
_pthread_rwlockattr_destroy(pthread_rwlockattr_t * rwlockattr)38 _pthread_rwlockattr_destroy(pthread_rwlockattr_t *rwlockattr)
39 {
40 pthread_rwlockattr_t prwlockattr;
41
42 if (rwlockattr == NULL)
43 return (EINVAL);
44 prwlockattr = *rwlockattr;
45 if (prwlockattr == NULL)
46 return (EINVAL);
47 __free(prwlockattr);
48 return (0);
49 }
50
51 int
_pthread_rwlockattr_getpshared(const pthread_rwlockattr_t * __restrict rwlockattr,int * __restrict pshared)52 _pthread_rwlockattr_getpshared(
53 const pthread_rwlockattr_t * __restrict rwlockattr,
54 int * __restrict pshared)
55 {
56 *pshared = (*rwlockattr)->pshared;
57 return (0);
58 }
59
60 int
_pthread_rwlockattr_init(pthread_rwlockattr_t * rwlockattr)61 _pthread_rwlockattr_init(pthread_rwlockattr_t *rwlockattr)
62 {
63 pthread_rwlockattr_t prwlockattr;
64
65 if (rwlockattr == NULL)
66 return (EINVAL);
67
68 prwlockattr = __malloc(sizeof(struct __pthread_rwlockattr_s));
69 if (prwlockattr == NULL)
70 return (ENOMEM);
71
72 prwlockattr->pshared = PTHREAD_PROCESS_PRIVATE;
73 *rwlockattr = prwlockattr;
74 return (0);
75 }
76
77 int
_pthread_rwlockattr_setpshared(pthread_rwlockattr_t * rwlockattr,int pshared)78 _pthread_rwlockattr_setpshared(pthread_rwlockattr_t *rwlockattr, int pshared)
79 {
80 /* Only PTHREAD_PROCESS_PRIVATE is supported. */
81 if (pshared != PTHREAD_PROCESS_PRIVATE)
82 return (EINVAL);
83 (*rwlockattr)->pshared = pshared;
84 return (0);
85 }
86
87 __strong_reference(_pthread_rwlockattr_destroy, pthread_rwlockattr_destroy);
88 __strong_reference(_pthread_rwlockattr_getpshared, pthread_rwlockattr_getpshared);
89 __strong_reference(_pthread_rwlockattr_init, pthread_rwlockattr_init);
90 __strong_reference(_pthread_rwlockattr_setpshared, pthread_rwlockattr_setpshared);
91