thr_attr_getguardsize.c revision 172491 
1/*
2 * Copyright (C) 2001 Jason Evans <jasone@freebsd.org>.
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(s), this list of conditions and the following disclaimer
10 *    unmodified other than the allowable addition of one or more
11 *    copyright notices.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice(s), this list of conditions and the following disclaimer in
14 *    the documentation and/or other materials provided with the
15 *    distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``AS IS'' AND ANY
18 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
20 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) BE
21 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
22 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
24 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
25 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
26 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
27 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 *
29 * $FreeBSD: head/lib/libkse/thread/thr_attr_getguardsize.c 156611 2006-03-13 00:59:51Z deischen $
30 */
31
32#include <errno.h>
33#include <pthread.h>
34#include "thr_private.h"
35
36LT10_COMPAT_PRIVATE(_pthread_attr_getguardsize);
37LT10_COMPAT_DEFAULT(pthread_attr_getguardsize);
38
39__weak_reference(_pthread_attr_getguardsize, pthread_attr_getguardsize);
40
41int
42_pthread_attr_getguardsize(const pthread_attr_t *attr, size_t *guardsize)
43{
44	int	ret;
45
46	/* Check for invalid arguments: */
47	if (attr == NULL || *attr == NULL || guardsize == NULL)
48		ret = EINVAL;
49	else {
50		/* Return the guard size: */
51		*guardsize = (*attr)->guardsize_attr;
52		ret = 0;
53	}
54	return(ret);
55}
56