1 /* $OpenBSD: rthread_mutexattr.c,v 1.3 2012/04/13 13:50:37 kurt Exp $ */
2 /*
3 * Copyright (c) 2004,2005 Ted Unangst <tedu@openbsd.org>
4 * Copyright (c) 2011 Philip Guenther <guenther@openbsd.org>
5 * All Rights Reserved.
6 *
7 * Permission to use, copy, modify, and distribute this software for any
8 * purpose with or without fee is hereby granted, provided that the above
9 * copyright notice and this permission notice appear in all copies.
10 *
11 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
12 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
13 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
14 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
15 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
16 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
17 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18 */
19 /*
20 * Mutex attributes
21 */
22
23
24 #include <stdlib.h>
25 #include <unistd.h>
26 #include <errno.h>
27
28 #include <pthread.h>
29 #include <pthread_np.h>
30
31 #include "rthread.h"
32
33 int
pthread_mutexattr_init(pthread_mutexattr_t * attrp)34 pthread_mutexattr_init(pthread_mutexattr_t *attrp)
35 {
36 pthread_mutexattr_t attr;
37
38 attr = calloc(1, sizeof(*attr));
39 if (!attr)
40 return (errno);
41 attr->ma_type = PTHREAD_MUTEX_DEFAULT;
42 *attrp = attr;
43
44 return (0);
45 }
46
47 int
pthread_mutexattr_destroy(pthread_mutexattr_t * attrp)48 pthread_mutexattr_destroy(pthread_mutexattr_t *attrp)
49 {
50 free(*attrp);
51 *attrp = NULL;
52
53 return (0);
54 }
55
56 int
pthread_mutexattr_settype(pthread_mutexattr_t * attrp,int type)57 pthread_mutexattr_settype(pthread_mutexattr_t *attrp, int type)
58 {
59 if (type < PTHREAD_MUTEX_ERRORCHECK || type >= PTHREAD_MUTEX_TYPE_MAX)
60 return (EINVAL);
61 (*attrp)->ma_type = type;
62 return (0);
63 }
64
65 int
pthread_mutexattr_gettype(pthread_mutexattr_t * attrp,int * type)66 pthread_mutexattr_gettype(pthread_mutexattr_t *attrp, int *type)
67 {
68 *type = (*attrp)->ma_type;
69 return (0);
70 }
71
72 int
pthread_mutexattr_setprotocol(pthread_mutexattr_t * attrp,int protocol)73 pthread_mutexattr_setprotocol(pthread_mutexattr_t *attrp, int protocol)
74 {
75 if (protocol < PTHREAD_PRIO_NONE || protocol > PTHREAD_PRIO_PROTECT)
76 return (EINVAL);
77 (*attrp)->ma_protocol = protocol;
78 return (0);
79 }
80
81 int
pthread_mutexattr_getprotocol(pthread_mutexattr_t * attrp,int * protocol)82 pthread_mutexattr_getprotocol(pthread_mutexattr_t *attrp, int *protocol)
83 {
84 *protocol = (*attrp)->ma_protocol;
85 return (0);
86 }
87
88 int
pthread_mutexattr_setprioceiling(pthread_mutexattr_t * attrp,int prioceiling)89 pthread_mutexattr_setprioceiling(pthread_mutexattr_t *attrp, int prioceiling)
90 {
91 if (prioceiling < PTHREAD_MIN_PRIORITY ||
92 prioceiling > PTHREAD_MAX_PRIORITY)
93 return (EINVAL);
94 (*attrp)->ma_prioceiling = prioceiling;
95 return (0);
96 }
97
98 int
pthread_mutexattr_getprioceiling(pthread_mutexattr_t * attrp,int * prioceiling)99 pthread_mutexattr_getprioceiling(pthread_mutexattr_t *attrp, int *prioceiling)
100 {
101 *prioceiling = (*attrp)->ma_prioceiling;
102 return (0);
103 }
104
105 int
pthread_mutexattr_getkind_np(pthread_mutexattr_t attrp)106 pthread_mutexattr_getkind_np(pthread_mutexattr_t attrp)
107 {
108 int ret;
109
110 if (attrp == NULL)
111 ret = EINVAL;
112 else
113 ret = attrp->ma_type;
114
115 return(ret);
116 }
117
118 int
pthread_mutexattr_setkind_np(pthread_mutexattr_t * attrp,int kind)119 pthread_mutexattr_setkind_np(pthread_mutexattr_t *attrp, int kind)
120 {
121 int ret;
122
123 if (attrp == NULL || *attrp == NULL ||
124 kind < PTHREAD_MUTEX_ERRORCHECK || kind >= PTHREAD_MUTEX_TYPE_MAX)
125 ret = EINVAL;
126 else {
127 (*attrp)->ma_type = kind;
128 ret = 0;
129 }
130
131 return (ret);
132 }
133