/*	$NetBSD: t_kern.c,v 1.1 2011/01/06 13:12:52 pooka Exp $	*/

/*-
 * Copyright (c) 2011 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/types.h>
#include <sys/signal.h>
#include <sys/wait.h>

#include <rump/rump.h>

#include <atf-c.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>

#include "../../h_macros.h"
#include "../kernspace/kernspace.h"

#define LOCKFUN(_name_, _descr_,_needld_)				\
	ATF_TC(lockme_##_name_);					\
	ATF_TC_HEAD(lockme_##_name_, tc) {				\
		atf_tc_set_md_var(tc, "descr", _descr_);		\
	}								\
	ATF_TC_BODY(lockme_##_name_, tc) {				\
		locktest(tc, LOCKME_##_name_, _needld_);		\
	}

static void
locktest(const atf_tc_t *tc, enum locktest lt, int needld)
{
	extern const int rump_lockdebug;
	int status;

	if (needld && !rump_lockdebug)
		atf_tc_skip("test requires LOCKDEBUG kernel");

	switch (fork()) {
	case 0:
		rump_init();
		rump_schedule();
		rumptest_lockme(lt);
		rump_unschedule();
		break;
	default:
		RL(wait(&status));
		ATF_REQUIRE(WIFSIGNALED(status) && WTERMSIG(status) == SIGABRT);
		break;
	case -1:
		atf_tc_fail("fork");
	}
}

LOCKFUN(DESTROYHELD, "destroy lock while held", 0);
LOCKFUN(DOUBLEFREE, "free lock twice", 0);
LOCKFUN(DOUBLEINIT, "init lock twice", 1);
LOCKFUN(MEMFREE, "free memory active lock is in", 1);
LOCKFUN(MTX, "locking-against-self mutex", 0);
LOCKFUN(RWDOUBLEX, "locking-against-self exclusive rwlock", 0);
LOCKFUN(RWRX, "rw: first shared, then exclusive", 1);
LOCKFUN(RWXR, "rw: first execusive, then shared", 0);

ATF_TP_ADD_TCS(tp)
{

	ATF_TP_ADD_TC(tp, lockme_MTX);
	ATF_TP_ADD_TC(tp, lockme_RWDOUBLEX);
	ATF_TP_ADD_TC(tp, lockme_RWRX);
	ATF_TP_ADD_TC(tp, lockme_RWXR);
	ATF_TP_ADD_TC(tp, lockme_DOUBLEINIT);
	ATF_TP_ADD_TC(tp, lockme_DOUBLEFREE);
	ATF_TP_ADD_TC(tp, lockme_DESTROYHELD);
	ATF_TP_ADD_TC(tp, lockme_MEMFREE);

	return atf_no_error();
}