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