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/* Copyright (C) 2002, 2003 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 <errno.h>
#include <stdlib.h>
#include "fork.h"
/* Defined in libc_pthread_init.c. */
extern struct fork_handler __pthread_child_handler attribute_hidden;
/* Three static memory blocks used when registering malloc. */
static struct fork_handler malloc_prepare;
static struct fork_handler malloc_parent;
static struct fork_handler malloc_child;
void
__unregister_atfork (dso_handle)
void *dso_handle;
{
/* Get the lock to not conflict with running forks. */
lll_lock (__fork_lock);
list_t *runp;
list_t *prevp;
list_for_each_prev_safe (runp, prevp, &__fork_prepare_list)
if (list_entry (runp, struct fork_handler, list)->dso_handle == dso_handle)
{
list_del (runp);
struct fork_handler *p = list_entry (runp, struct fork_handler, list);
if (p != &malloc_prepare)
free (p);
}
list_for_each_prev_safe (runp, prevp, &__fork_parent_list)
if (list_entry (runp, struct fork_handler, list)->dso_handle == dso_handle)
{
list_del (runp);
struct fork_handler *p = list_entry (runp, struct fork_handler, list);
if (p != &malloc_parent)
free (p);
}
list_for_each_prev_safe (runp, prevp, &__fork_child_list)
if (list_entry (runp, struct fork_handler, list)->dso_handle == dso_handle)
{
list_del (runp);
struct fork_handler *p = list_entry (runp, struct fork_handler, list);
if (p != &__pthread_child_handler && p != &malloc_child)
free (p);
}
/* Release the lock. */
lll_unlock (__fork_lock);
}
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