1/*
2 * Copyright (c) 2003 Daniel Eischen <deischen@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, this list of conditions and the following disclaimer.
10 * 2. Neither the name of the author nor the names of any co-contributors
11 *    may be used to endorse or promote products derived from this software
12 *    without specific prior written permission.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD$
27 */
28#include "namespace.h"
29#include <errno.h>
30#include <stdlib.h>
31#include <pthread.h>
32#include <sys/queue.h>
33#include "un-namespace.h"
34#include "thr_private.h"
35
36__weak_reference(_pthread_atfork, pthread_atfork);
37
38int
39_pthread_atfork(void (*prepare)(void), void (*parent)(void),
40    void (*child)(void))
41{
42	struct pthread_atfork *af;
43
44	if (_thr_initial == NULL)
45		_libpthread_init(NULL);
46
47	if ((af = malloc(sizeof(struct pthread_atfork))) == NULL)
48		return (ENOMEM);
49
50	af->prepare = prepare;
51	af->parent = parent;
52	af->child = child;
53	_pthread_mutex_lock(&_thr_atfork_mutex);
54	TAILQ_INSERT_TAIL(&_thr_atfork_list, af, qe);
55	_pthread_mutex_unlock(&_thr_atfork_mutex);
56	return (0);
57}
58
59