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/* $OpenBSD: atfork.c,v 1.1 2015/04/07 01:27:07 guenther Exp $ */
/*
* Copyright (c) 2008 Kurt Miller <kurt@openbsd.org>
* Copyright (c) 2008 Philip Guenther <guenther@openbsd.org>
* Copyright (c) 2003 Daniel Eischen <deischen@freebsd.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Neither the name of the author nor the names of any co-contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD: /repoman/r/ncvs/src/lib/libc_r/uthread/uthread_atfork.c,v 1.1 2004/12/10 03:36:45 grog Exp $
*/
#include <errno.h>
#include <stdlib.h>
#include "thread_private.h"
#include "atfork.h"
int
_thread_atfork(void (*prepare)(void), void (*parent)(void),
void (*child)(void), void *dso)
{
struct atfork_fn *af;
if ((af = malloc(sizeof *af)) == NULL)
return (ENOMEM);
af->fn_prepare = prepare;
af->fn_parent = parent;
af->fn_child = child;
af->fn_dso = dso;
_ATFORK_LOCK();
TAILQ_INSERT_TAIL(&_atfork_list, af, fn_next);
_ATFORK_UNLOCK();
return (0);
}
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