From e1e46622ac0fce73d802fa4a8a2e83cc25cd9e7a Mon Sep 17 00:00:00 2001 From: Waldemar Brodkorb Date: Sat, 14 Feb 2015 23:04:02 -0600 Subject: Revert "resolve merge" This reverts commit 6b6ede3d15f04fe825cfa9f697507457e3640344. --- .../sysdeps/unix/sysv/linux/register-atfork.c | 86 ++++++++++++++++++++++ 1 file changed, 86 insertions(+) create mode 100644 libpthread/linuxthreads/sysdeps/unix/sysv/linux/register-atfork.c (limited to 'libpthread/linuxthreads/sysdeps/unix/sysv/linux/register-atfork.c') diff --git a/libpthread/linuxthreads/sysdeps/unix/sysv/linux/register-atfork.c b/libpthread/linuxthreads/sysdeps/unix/sysv/linux/register-atfork.c new file mode 100644 index 000000000..338d421e3 --- /dev/null +++ b/libpthread/linuxthreads/sysdeps/unix/sysv/linux/register-atfork.c @@ -0,0 +1,86 @@ +/* Copyright (C) 2002 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper , 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, see + . */ + +#include +#include +#include "fork.h" + + +int +__register_atfork (prepare, parent, child, dso_handle) + void (*prepare) (void); + void (*parent) (void); + void (*child) (void); + void *dso_handle; +{ + struct fork_handler *new_prepare = NULL; + struct fork_handler *new_parent = NULL; + struct fork_handler *new_child = NULL; + + if (prepare != NULL) + { + new_prepare = (struct fork_handler *) malloc (sizeof (*new_prepare)); + if (new_prepare == NULL) + goto out1; + + new_prepare->handler = prepare; + new_prepare->dso_handle = dso_handle; + } + + if (parent != NULL) + { + new_parent = (struct fork_handler *) malloc (sizeof (*new_parent)); + if (new_parent == NULL) + goto out2; + + new_parent->handler = parent; + new_parent->dso_handle = dso_handle; + } + + if (child != NULL) + { + new_child = (struct fork_handler *) malloc (sizeof (*new_child)); + if (new_child == NULL) + { + free (new_parent); + out2: + free (new_prepare); + out1: + return errno; + } + + new_child->handler = child; + new_child->dso_handle = dso_handle; + } + + /* Get the lock to not conflict with running forks. */ + __libc_lock_lock (__fork_block.lock); + + /* Now that we have all the handlers allocate enqueue them. */ + if (new_prepare != NULL) + list_add_tail (&new_prepare->list, &__fork_block.prepare_list); + if (new_parent != NULL) + list_add_tail (&new_parent->list, &__fork_block.parent_list); + if (new_child != NULL) + list_add_tail (&new_child->list, &__fork_block.child_list); + + /* Release the lock. */ + __libc_lock_unlock (__fork_block.lock); + + return 0; +} -- cgit v1.2.3