thr_condattr.c revision 157457 
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 * $FreeBSD: head/lib/libthr/thread/thr_condattr.c 157457 2006-04-04 02:57:49Z davidxu $
33 */
34
35#include "namespace.h"
36#include <stdlib.h>
37#include <string.h>
38#include <errno.h>
39#include <pthread.h>
40#include "un-namespace.h"
41
42#include "thr_private.h"
43
44__weak_reference(_pthread_condattr_init, pthread_condattr_init);
45__weak_reference(_pthread_condattr_destroy, pthread_condattr_destroy);
46__weak_reference(_pthread_condattr_getclock, pthread_condattr_getclock);
47__weak_reference(_pthread_condattr_setclock, pthread_condattr_setclock);
48__weak_reference(_pthread_condattr_getpshared, pthread_condattr_getpshared);
49__weak_reference(_pthread_condattr_setpshared, pthread_condattr_setpshared);
50
51int
52_pthread_condattr_init(pthread_condattr_t *attr)
53{
54	pthread_condattr_t pattr;
55	int ret;
56
57	if ((pattr = (pthread_condattr_t)
58	    malloc(sizeof(struct pthread_cond_attr))) == NULL) {
59		ret = ENOMEM;
60	} else {
61		memcpy(pattr, &_pthread_condattr_default,
62		    sizeof(struct pthread_cond_attr));
63		*attr = pattr;
64		ret = 0;
65	}
66	return (ret);
67}
68
69int
70_pthread_condattr_destroy(pthread_condattr_t *attr)
71{
72	int	ret;
73
74	if (attr == NULL || *attr == NULL) {
75		ret = EINVAL;
76	} else {
77		free(*attr);
78		*attr = NULL;
79		ret = 0;
80	}
81	return(ret);
82}
83
84int
85_pthread_condattr_getclock(const pthread_condattr_t *attr,
86       clockid_t *clock_id)
87{
88	if (attr == NULL || *attr == NULL)
89		return (EINVAL);
90	*clock_id = (*attr)->c_clockid;
91	return (0);
92}
93
94int
95_pthread_condattr_setclock(pthread_condattr_t *attr,
96       clockid_t clock_id)
97{
98	if (attr == NULL || *attr == NULL)
99		return (EINVAL);
100	if (clock_id != CLOCK_REALTIME &&
101	    clock_id != CLOCK_VIRTUAL &&
102	    clock_id != CLOCK_PROF &&
103	    clock_id != CLOCK_MONOTONIC) {
104		return  (EINVAL);
105	}
106	(*attr)->c_clockid = clock_id;
107	return (0);
108}
109
110int
111_pthread_condattr_getpshared(const pthread_condattr_t *attr,
112	int *pshared)
113{
114	if (attr == NULL || *attr == NULL)
115		return (EINVAL);
116
117	pshared = PTHREAD_PROCESS_PRIVATE;
118	return (0);
119}
120
121int
122_pthread_condattr_setpshared(pthread_condattr_t *attr, int pshared)
123{
124	if (attr == NULL || *attr == NULL)
125		return (EINVAL);
126
127	if  (pshared != PTHREAD_PROCESS_PRIVATE)
128		return (EINVAL);
129	return (0);
130}
131