t_raise.c revision 272343 
1/*	$NetBSD: t_raise.c,v 1.5 2011/05/10 12:43:42 jruoho Exp $ */
2
3/*-
4 * Copyright (c) 2011 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Jukka Ruohonen.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31#include <sys/cdefs.h>
32__RCSID("$NetBSD: t_raise.c,v 1.5 2011/05/10 12:43:42 jruoho Exp $");
33
34#include <atf-c.h>
35
36#include <signal.h>
37#include <string.h>
38#include <time.h>
39#include <unistd.h>
40
41static bool	fail;
42static int	count;
43static void	handler_err(int);
44static void	handler_ret(int);
45static void	handler_stress(int);
46static int	sig[] = { SIGALRM, SIGIO, SIGUSR1, SIGUSR2, SIGPWR };
47
48static void
49handler_stress(int signo)
50{
51	count++;
52}
53
54static void
55handler_err(int signo)
56{
57	size_t i;
58
59	for (i = 0; i < __arraycount(sig); i++) {
60
61		if (sig[i] == signo) {
62			fail = false;
63			break;
64		}
65	}
66}
67
68static void
69handler_ret(int signo)
70{
71
72	(void)sleep(1);
73
74	fail = false;
75}
76
77ATF_TC(raise_err);
78ATF_TC_HEAD(raise_err, tc)
79{
80	atf_tc_set_md_var(tc, "descr", "Test raise(3) for invalid parameters");
81}
82
83ATF_TC_BODY(raise_err, tc)
84{
85	int i = 0;
86
87	while (i < 10) {
88
89		ATF_REQUIRE(raise(10240 + i) == -1);
90
91		i++;
92	}
93}
94
95ATF_TC(raise_ret);
96ATF_TC_HEAD(raise_ret, tc)
97{
98	atf_tc_set_md_var(tc, "descr", "Test return order of raise(3)");
99}
100
101ATF_TC_BODY(raise_ret, tc)
102{
103	struct sigaction sa;
104
105	fail = true;
106
107	sa.sa_flags = 0;
108	sa.sa_handler = handler_ret;
109
110	/*
111	 * Verify that raise(3) does not return
112	 * before the signal handler returns.
113	 */
114	ATF_REQUIRE(sigemptyset(&sa.sa_mask) == 0);
115	ATF_REQUIRE(sigaction(SIGUSR1, &sa, 0) == 0);
116	ATF_REQUIRE(raise(SIGUSR1) == 0);
117
118	if (fail != false)
119		atf_tc_fail("raise(3) returned before signal handler");
120}
121
122ATF_TC(raise_sig);
123ATF_TC_HEAD(raise_sig, tc)
124{
125	atf_tc_set_md_var(tc, "descr", "A basic test of raise(3)");
126}
127
128ATF_TC_BODY(raise_sig, tc)
129{
130	struct timespec tv, tr;
131	struct sigaction sa;
132	size_t i;
133
134	for (i = 0; i < __arraycount(sig); i++) {
135
136		(void)memset(&sa, 0, sizeof(struct sigaction));
137
138		fail = true;
139
140		tv.tv_sec = 0;
141		tv.tv_nsec = 2;
142
143		sa.sa_flags = 0;
144		sa.sa_handler = handler_err;
145
146		ATF_REQUIRE(sigemptyset(&sa.sa_mask) == 0);
147		ATF_REQUIRE(sigaction(sig[i], &sa, 0) == 0);
148
149		ATF_REQUIRE(raise(sig[i]) == 0);
150		ATF_REQUIRE(nanosleep(&tv, &tr) == 0);
151
152		if (fail != false)
153			atf_tc_fail("raise(3) did not raise a signal");
154	}
155}
156
157ATF_TC(raise_stress);
158ATF_TC_HEAD(raise_stress, tc)
159{
160	atf_tc_set_md_var(tc, "descr", "A basic stress test with raise(3)");
161}
162
163ATF_TC_BODY(raise_stress, tc)
164{
165	static const int maxiter = 1000 * 10;
166	struct sigaction sa;
167	int i;
168
169	sa.sa_flags = 0;
170	sa.sa_handler = handler_stress;
171
172	ATF_REQUIRE(sigemptyset(&sa.sa_mask) == 0);
173	ATF_REQUIRE(sigaction(SIGUSR1, &sa, 0) == 0);
174
175	for (count = i = 0; i < maxiter; i++)
176		(void)raise(SIGUSR1);
177
178	if (count != maxiter)
179		atf_tc_fail("not all signals were catched");
180}
181
182ATF_TP_ADD_TCS(tp)
183{
184	ATF_TP_ADD_TC(tp, raise_err);
185	ATF_TP_ADD_TC(tp, raise_ret);
186	ATF_TP_ADD_TC(tp, raise_sig);
187	ATF_TP_ADD_TC(tp, raise_stress);
188
189	return atf_no_error();
190}
191