mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-23 11:20:07 +00:00
dfdd294a2a
* Makefile: Add rules to build and run tst-atfork2 test. * tst-atfork2.c: New file. * tst-atfork2mod.c: New file. * sysdeps/unix/sysv/linux/unregister-atfork.c (__unregister_atfork): Free the memory allocated for the handlers after removing them from the lists. * sysdeps/unix/sysv/linux/register-atfork.c: Define memeory cleanup function. * tst-atfork1.c (do_test): Wait for the child we forked. Report error in child. * sysdeps/unix/sysv/linux/fork.c (__libc_fork): Fix comment.
122 lines
2.1 KiB
C
122 lines
2.1 KiB
C
/* 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 <pthread.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
#include <sys/wait.h>
|
|
|
|
|
|
static int val;
|
|
|
|
|
|
static void
|
|
prepare1 (void)
|
|
{
|
|
val *= 2;
|
|
}
|
|
|
|
static void
|
|
prepare2 (void)
|
|
{
|
|
++val;
|
|
}
|
|
|
|
static void
|
|
parent1 (void)
|
|
{
|
|
val += 4;
|
|
}
|
|
|
|
static void
|
|
parent2 (void)
|
|
{
|
|
val *= 4;
|
|
}
|
|
|
|
static void
|
|
child1 (void)
|
|
{
|
|
val += 8;
|
|
}
|
|
|
|
static void
|
|
child2 (void)
|
|
{
|
|
val *= 8;
|
|
}
|
|
|
|
|
|
static int
|
|
do_test (void)
|
|
{
|
|
pid_t pid;
|
|
int status = 0;
|
|
|
|
if (pthread_atfork (prepare1, parent1, child1) != 0)
|
|
{
|
|
puts ("1st atfork failed");
|
|
exit (1);
|
|
}
|
|
if (pthread_atfork (prepare2, parent2, child2) != 0)
|
|
{
|
|
puts ("2nd atfork failed");
|
|
exit (1);
|
|
}
|
|
|
|
pid = fork ();
|
|
if (pid == -1)
|
|
{
|
|
puts ("fork failed");
|
|
exit (1);
|
|
}
|
|
|
|
if (pid != 0)
|
|
{
|
|
/* Parent. */
|
|
if (val != 24)
|
|
{
|
|
printf ("expected val=%d, got %d\n", 24, val);
|
|
exit (1);
|
|
}
|
|
|
|
if (TEMP_FAILURE_RETRY (waitpid (pid, &status, 0)) != pid)
|
|
{
|
|
puts ("waitpid failed");
|
|
exit (1);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* Child. */
|
|
if (val != 80)
|
|
{
|
|
printf ("expected val=%d, got %d\n", 80, val);
|
|
exit (2);
|
|
}
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
#define TEST_FUNCTION do_test ()
|
|
#include "../test-skeleton.c"
|