t_lock.c revision 314817 
1/* $NetBSD: t_lock.c,v 1.2 2017/01/13 21:30:41 christos Exp $ */
2
3/*-
4 * Copyright (c) 2002, 2008 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#include <sys/cdefs.h>
30__COPYRIGHT("@(#) Copyright (c) 2008\
31 The NetBSD Foundation, inc. All rights reserved.");
32__RCSID("$NetBSD: t_lock.c,v 1.2 2017/01/13 21:30:41 christos Exp $");
33
34#include <sys/time.h>
35
36#include <machine/lock.h>
37#include <signal.h>
38
39#include <atf-c.h>
40
41#include "h_macros.h"
42
43__cpu_simple_lock_t lk;
44volatile int handled = 0;
45
46static void
47handler(int sig)
48{
49	handled = 1;
50	__cpu_simple_unlock(&lk);
51}
52
53ATF_TC(lock);
54ATF_TC_HEAD(lock, tc)
55{
56	atf_tc_set_md_var(tc, "timeout", "3");
57	atf_tc_set_md_var(tc, "descr",
58	    "Checks __cpu_simple_lock()/__cpu_simple_unlock()");
59}
60ATF_TC_BODY(lock, tc)
61{
62	struct itimerval itv;
63
64	__cpu_simple_lock_init(&lk);
65
66	REQUIRE_LIBC(signal(SIGVTALRM, handler), SIG_ERR);
67
68	itv.it_interval.tv_sec = 0;
69	itv.it_interval.tv_usec = 0;
70	itv.it_value.tv_sec = 1;
71	itv.it_value.tv_usec = 0;
72	RL(setitimer(ITIMER_VIRTUAL, &itv, NULL));
73
74	__cpu_simple_lock(&lk);
75	__cpu_simple_lock(&lk);
76
77	ATF_REQUIRE(handled);
78
79	__cpu_simple_unlock(&lk);
80}
81
82ATF_TP_ADD_TCS(tp)
83{
84	ATF_TP_ADD_TC(tp, lock);
85
86	return atf_no_error();
87}
88