thr_condattr.c revision 144518 
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 144518 2005-04-02 01:20:00Z davidxu $
33 */
34
35#include <stdlib.h>
36#include <string.h>
37#include <errno.h>
38#include <pthread.h>
39
40#include "thr_private.h"
41
42__weak_reference(_pthread_condattr_init, pthread_condattr_init);
43__weak_reference(_pthread_condattr_destroy, pthread_condattr_destroy);
44__weak_reference(_pthread_condattr_getclock, pthread_condattr_getclock);
45__weak_reference(_pthread_condattr_setclock, pthread_condattr_setclock);
46__weak_reference(_pthread_condattr_getpshared, pthread_condattr_getpshared);
47__weak_reference(_pthread_condattr_setpshared, pthread_condattr_setpshared);
48
49int
50_pthread_condattr_init(pthread_condattr_t *attr)
51{
52	pthread_condattr_t pattr;
53	int ret;
54
55	if ((pattr = (pthread_condattr_t)
56	    malloc(sizeof(struct pthread_cond_attr))) == NULL) {
57		ret = ENOMEM;
58	} else {
59		memcpy(pattr, &_pthread_condattr_default,
60		    sizeof(struct pthread_cond_attr));
61		*attr = pattr;
62		ret = 0;
63	}
64	return (ret);
65}
66
67int
68_pthread_condattr_destroy(pthread_condattr_t *attr)
69{
70	int	ret;
71
72	if (attr == NULL || *attr == NULL) {
73		ret = EINVAL;
74	} else {
75		free(*attr);
76		*attr = NULL;
77		ret = 0;
78	}
79	return(ret);
80}
81
82int
83_pthread_condattr_getclock(const pthread_condattr_t *attr,
84       clockid_t *clock_id)
85{
86	if (attr == NULL || *attr == NULL)
87		return (EINVAL);
88	*clock_id = (*attr)->c_clockid;
89	return (0);
90}
91
92int
93_pthread_condattr_setclock(pthread_condattr_t *attr,
94       clockid_t clock_id)
95{
96	if (attr == NULL || *attr == NULL)
97		return (EINVAL);
98	if (clock_id != CLOCK_REALTIME &&
99	    clock_id != CLOCK_VIRTUAL &&
100	    clock_id != CLOCK_PROF &&
101	    clock_id != CLOCK_MONOTONIC) {
102		return  (EINVAL);
103	}
104	(*attr)->c_clockid = clock_id;
105	return (0);
106}
107
108int
109_pthread_condattr_getpshared(const pthread_condattr_t *attr,
110	int *pshared)
111{
112	if (attr == NULL || *attr == NULL)
113		return (EINVAL);
114
115	pshared = PTHREAD_PROCESS_PRIVATE;
116	return (0);
117}
118
119int
120_pthread_condattr_setpshared(pthread_condattr_t *attr, int pshared)
121{
122	if (attr == NULL || *attr == NULL)
123		return (EINVAL);
124
125	if  (pshared != PTHREAD_PROCESS_PRIVATE)
126		return (EINVAL);
127	return (0);
128}
129