/*      $NetBSD: t_rmdirrace.c,v 1.9 2012/02/16 02:47:56 perseant Exp $ */

/*-
* Copyright (c) 2010 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Nicolas Joly.
*
* 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/stat.h>

#include <atf-c.h>
#include <fcntl.h>
#include <pthread.h>
#include <stdlib.h>
#include <unistd.h>

#include <rump/rump_syscalls.h>
#include <rump/rump.h>

#include "../common/h_fsmacros.h"

#define DIRNAME "rmdir.test"

static void *func1(void *arg)
{

       while (*(int *)arg != 1)
               rump_sys_mkdir(DIRNAME, 0755);

       return NULL;
}

static void *func2(void *arg)
{

       while (*(int *)arg != 1)
               rump_sys_rmdir(DIRNAME);

       return NULL;
}

static void
race(const atf_tc_t *tc, const char *path)
{
       int res, fd, quit;
       pthread_t th1, th2;

       if (FSTYPE_SYSVBFS(tc))
               atf_tc_skip("directories not supported by file system");

       fd = rump_sys_open(".", O_RDONLY, 0666);
       if (fd == -1)
               atf_tc_fail("open failed");
       res = rump_sys_chdir(path);
       if (res == -1)
               atf_tc_fail("chdir failed");

       quit = 0;

       res = pthread_create(&th1, NULL, func1, &quit);
       if (res != 0)
               atf_tc_fail("pthread_create1 failed");
       res = pthread_create(&th2, NULL, func2, &quit);
       if (res != 0)
               atf_tc_fail("pthread_create2 failed");

       sleep(10);

       quit = 1;

       res = pthread_join(th2, NULL);
       if (res != 0)
               atf_tc_fail("pthread_join2 failed");
       res = pthread_join(th1, NULL);
       if (res != 0)
               atf_tc_fail("pthread_join1 failed");

       res = rump_sys_fchdir(fd);
       if (res == -1)
               atf_tc_fail("fchdir failed");
}

ATF_FSAPPLY(race, "rmdir(2) race");