minix/tests/kernel/t_lock.c

88 lines
2.5 KiB
C
Raw Normal View History

/* $NetBSD: t_lock.c,v 1.1 2009/02/20 21:39:57 jmmv Exp $ */
/*-
* Copyright (c) 2002, 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_lock.c,v 1.1 2009/02/20 21:39:57 jmmv Exp $");
#include <sys/time.h>
#include <machine/lock.h>
#include <signal.h>
#include <atf-c.h>
#include "../h_macros.h"
__cpu_simple_lock_t lk;
volatile int handled = 0;
static void
handler(int sig)
{
handled = 1;
__cpu_simple_unlock(&lk);
}
ATF_TC(lock);
ATF_TC_HEAD(lock, tc)
{
atf_tc_set_md_var(tc, "timeout", "3");
atf_tc_set_md_var(tc, "descr",
"Checks __cpu_simple_lock()/__cpu_simple_unlock()");
}
ATF_TC_BODY(lock, tc)
{
struct itimerval itv;
__cpu_simple_lock_init(&lk);
REQUIRE_LIBC(signal(SIGVTALRM, handler), SIG_ERR);
itv.it_interval.tv_sec = 0;
itv.it_interval.tv_usec = 0;
itv.it_value.tv_sec = 1;
itv.it_value.tv_usec = 0;
RL(setitimer(ITIMER_VIRTUAL, &itv, NULL));
__cpu_simple_lock(&lk);
__cpu_simple_lock(&lk);
ATF_REQUIRE(handled);
__cpu_simple_unlock(&lk);
}
ATF_TP_ADD_TCS(tp)
{
ATF_TP_ADD_TC(tp, lock);
return atf_no_error();
}