Back to index

glibc  2.9
unregister-atfork.c
Go to the documentation of this file.
00001 /* Copyright (C) 2002 Free Software Foundation, Inc.
00002    This file is part of the GNU C Library.
00003    Contributed by Ulrich Drepper <drepper@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 <stdlib.h>
00022 #include "fork.h"
00023 
00024 
00025 void
00026 __unregister_atfork (dso_handle)
00027      void *dso_handle;
00028 {
00029   /* Get the lock to not conflict with running forks.  */
00030   __libc_lock_lock (__fork_block.lock);
00031 
00032   list_t *runp;
00033   list_t *prevp;
00034 
00035   list_for_each_prev_safe (runp, prevp, &__fork_block.prepare_list)
00036     if (list_entry (runp, struct fork_handler, list)->dso_handle == dso_handle)
00037       list_del (runp);
00038 
00039   list_for_each_prev_safe (runp, prevp, &__fork_block.parent_list)
00040     if (list_entry (runp, struct fork_handler, list)->dso_handle == dso_handle)
00041       list_del (runp);
00042 
00043   list_for_each_prev_safe (runp, prevp, &__fork_block.child_list)
00044     if (list_entry (runp, struct fork_handler, list)->dso_handle == dso_handle)
00045       list_del (runp);
00046 
00047   /* Release the lock.  */
00048   __libc_lock_unlock (__fork_block.lock);
00049 }