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glibc  2.9
fork.c
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00001 /* Copyright (C) 2002, 2003 Free Software Foundation, Inc.
00002    This file is part of the GNU C Library.
00003    Contributed by Jakub Jelinek <jakub@redhat.com>, 2002.
00004 
00005    The GNU C Library is free software; you can redistribute it and/or
00006    modify it under the terms of the GNU Lesser General Public
00007    License as published by the Free Software Foundation; either
00008    version 2.1 of the License, or (at your option) any later version.
00009 
00010    The GNU C Library is distributed in the hope that it will be useful,
00011    but WITHOUT ANY WARRANTY; without even the implied warranty of
00012    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013    Lesser General Public License for more details.
00014 
00015    You should have received a copy of the GNU Lesser General Public
00016    License along with the GNU C Library; if not, write to the Free
00017    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
00018    02111-1307 USA.  */
00019 
00020 #include <errno.h>
00021 #include <fork.h>
00022 #include <bits/libc-lock.h>
00023 
00024 #ifndef SHARED
00025 weak_extern (__pthread_fork);
00026 #endif
00027 
00028 struct fork_block __fork_block =
00029 {
00030   .lock = PTHREAD_MUTEX_INITIALIZER,
00031   .prepare_list = { &__fork_block.prepare_list, &__fork_block.prepare_list },
00032   .parent_list = { &__fork_block.parent_list, &__fork_block.parent_list },
00033   .child_list = { &__fork_block.child_list, &__fork_block.child_list }
00034 };
00035 
00036 pid_t
00037 __libc_fork (void)
00038 {
00039   return __libc_maybe_call2 (pthread_fork, (&__fork_block), ARCH_FORK ());
00040 }
00041 weak_alias (__libc_fork, __fork)
00042 libc_hidden_def (__fork)
00043 weak_alias (__libc_fork, fork)