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/* Copyright (C) 2002 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <list.h>
#include <bits/libc-lock.h>
struct fork_block
{
/* Lock to protect handling of fork handlers. */
__libc_lock_define (, lock);
/* Lists of registered fork handlers. */
list_t prepare_list;
list_t parent_list;
list_t child_list;
};
extern struct fork_block __fork_block attribute_hidden;
/* Elements of the fork handler lists. */
struct fork_handler
{
list_t list;
void (*handler) (void);
void *dso_handle;
};
/* Function to call to unregister fork handlers. */
extern void __unregister_atfork (void *dso_handle) attribute_hidden;
#define UNREGISTER_ATFORK(dso_handle) __unregister_atfork (dso_handle)
/* C library side function to register new fork handlers. */
extern int __register_atfork (void (*__prepare) (void),
void (*__parent) (void),
void (*__child) (void),
void *dso_handle);
#ifndef ARCH_FORK
# define ARCH_FORK() __libc_fork()
#endif
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