1 /*
2  * Copyright (c) 1997 John Birrell <jb@cimlogic.com.au>.
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  * 3. All advertising materials mentioning features or use of this software
14  *    must display the following acknowledgement:
15  *	This product includes software developed by John Birrell.
16  * 4. Neither the name of the author nor the names of any co-contributors
17  *    may be used to endorse or promote products derived from this software
18  *    without specific prior written permission.
19  *
20  * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND
21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30  * SUCH DAMAGE.
31  */
32 
33 #include "namespace.h"
34 #include <errno.h>
35 #include <stdlib.h>
36 #include <string.h>
37 #include <pthread.h>
38 #include "un-namespace.h"
39 
40 #include "thr_private.h"
41 
42 /* Default condition variable attributes. */
43 struct pthread_cond_attr _pthread_condattr_default = {
44 	.c_pshared = PTHREAD_PROCESS_PRIVATE,
45 	.c_clockid = CLOCK_REALTIME
46 };
47 
48 int
49 _pthread_condattr_init(pthread_condattr_t *attr)
50 {
51 	pthread_condattr_t pattr;
52 	int ret;
53 
54 	if ((pattr = (pthread_condattr_t)
55 	    malloc(sizeof(struct pthread_cond_attr))) == NULL) {
56 		ret = ENOMEM;
57 	} else {
58 		memcpy(pattr, &_pthread_condattr_default,
59 		    sizeof(struct pthread_cond_attr));
60 		*attr = pattr;
61 		ret = 0;
62 	}
63 	return (ret);
64 }
65 
66 int
67 _pthread_condattr_destroy(pthread_condattr_t *attr)
68 {
69 	int	ret;
70 
71 	if (attr == NULL || *attr == NULL) {
72 		ret = EINVAL;
73 	} else {
74 		free(*attr);
75 		*attr = NULL;
76 		ret = 0;
77 	}
78 	return(ret);
79 }
80 
81 int
82 _pthread_condattr_getclock(const pthread_condattr_t *attr,
83        clockid_t *clock_id)
84 {
85 	if (attr == NULL || *attr == NULL)
86 		return (EINVAL);
87 	*clock_id = (*attr)->c_clockid;
88 	return (0);
89 }
90 
91 int
92 _pthread_condattr_setclock(pthread_condattr_t *attr,
93        clockid_t clock_id)
94 {
95 	if (attr == NULL || *attr == NULL)
96 		return (EINVAL);
97 	if (clock_id != CLOCK_REALTIME &&
98 	    clock_id != CLOCK_MONOTONIC)
99 		return (EINVAL);
100 	(*attr)->c_clockid = clock_id;
101 	return (0);
102 }
103 
104 int
105 _pthread_condattr_getpshared(const pthread_condattr_t *attr,
106 	int *pshared)
107 {
108 	if (attr == NULL || *attr == NULL)
109 		return (EINVAL);
110 
111 	*pshared = PTHREAD_PROCESS_PRIVATE;
112 	return (0);
113 }
114 
115 int
116 _pthread_condattr_setpshared(pthread_condattr_t *attr, int pshared)
117 {
118 	if (attr == NULL || *attr == NULL)
119 		return (EINVAL);
120 
121 	if  (pshared != PTHREAD_PROCESS_PRIVATE)
122 		return (EINVAL);
123 	return (0);
124 }
125 
126 __strong_reference(_pthread_condattr_init, pthread_condattr_init);
127 __strong_reference(_pthread_condattr_destroy, pthread_condattr_destroy);
128 __strong_reference(_pthread_condattr_getclock, pthread_condattr_getclock);
129 __strong_reference(_pthread_condattr_setclock, pthread_condattr_setclock);
130 __strong_reference(_pthread_condattr_getpshared, pthread_condattr_getpshared);
131 __strong_reference(_pthread_condattr_setpshared, pthread_condattr_setpshared);
132 
133