minix/tests/lib/libpthread/t_fork.c

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/* $NetBSD: t_fork.c,v 1.1 2010/07/16 15:42:53 jmmv Exp $ */
/*
* Copyright (c) 2008 The NetBSD Foundation, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__COPYRIGHT("@(#) Copyright (c) 2008\
The NetBSD Foundation, inc. All rights reserved.");
__RCSID("$NetBSD: t_fork.c,v 1.1 2010/07/16 15:42:53 jmmv Exp $");
/*
* Written by Love H<EFBFBD>rnquist <EFBFBD>strand <lha@NetBSD.org>, March 2003.
* Public domain.
*/
#include <sys/types.h>
#include <sys/wait.h>
#include <errno.h>
#include <pthread.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <atf-c.h>
#include "h_common.h"
static pid_t parent;
static int thread_survived = 0;
static void *
print_pid(void *arg)
{
sleep(3);
thread_survived = 1;
if (parent != getpid()) {
exit(1);
}
return NULL;
}
ATF_TC(fork);
ATF_TC_HEAD(fork, tc)
{
atf_tc_set_md_var(tc, "descr",
"Checks that child process doesn't get threads");
}
ATF_TC_BODY(fork, tc)
{
pthread_t p;
pid_t fork_pid;
parent = getpid();
PTHREAD_REQUIRE(pthread_create(&p, NULL, print_pid, NULL));
fork_pid = fork();
ATF_REQUIRE(fork_pid != -1);
if (fork_pid) {
int status;
PTHREAD_REQUIRE(pthread_join(p, NULL));
ATF_REQUIRE_MSG(thread_survived, "thread did not survive in parent");
waitpid(fork_pid, &status, 0);
ATF_REQUIRE_MSG(WIFEXITED(status), "child died wrongly");
ATF_REQUIRE_EQ_MSG(WEXITSTATUS(status), 0, "thread survived in child");
} else {
sleep(5);
exit(thread_survived ? 1 : 0);
}
}
ATF_TP_ADD_TCS(tp)
{
ATF_TP_ADD_TC(tp, fork);
return atf_no_error();
}