t_timer_create.c revision 276478 
1/*	$NetBSD: t_timer_create.c,v 1.4 2012/03/18 07:00:52 jruoho Exp $ */
2
3/*-
4 * Copyright (c) 2010 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 <atf-c.h>
30#include <errno.h>
31#include <stdio.h>
32#include <signal.h>
33#include <string.h>
34#include <time.h>
35#include <unistd.h>
36
37static timer_t t;
38static bool fail = true;
39
40static void
41#ifdef __FreeBSD__
42timer_signal_handler(int signo, siginfo_t *si, void *osi __unused)
43#else
44timer_signal_handler(int signo, siginfo_t *si, void *osi)
45#endif
46{
47	timer_t *tp;
48
49	tp = si->si_value.sival_ptr;
50
51	if (*tp == t && signo == SIGALRM)
52		fail = false;
53
54	(void)fprintf(stderr, "%s: %s\n", __func__, strsignal(signo));
55}
56
57static void
58timer_signal_create(clockid_t cid, bool expire)
59{
60	struct itimerspec tim;
61	struct sigaction act;
62	struct sigevent evt;
63	sigset_t set;
64
65	t = 0;
66	fail = true;
67
68	(void)memset(&evt, 0, sizeof(struct sigevent));
69	(void)memset(&act, 0, sizeof(struct sigaction));
70	(void)memset(&tim, 0, sizeof(struct itimerspec));
71
72	/*
73	 * Set handler.
74	 */
75	act.sa_flags = SA_SIGINFO;
76	act.sa_sigaction = timer_signal_handler;
77
78	ATF_REQUIRE(sigemptyset(&set) == 0);
79	ATF_REQUIRE(sigemptyset(&act.sa_mask) == 0);
80
81	/*
82	 * Block SIGALRM while configuring the timer.
83	 */
84	ATF_REQUIRE(sigaction(SIGALRM, &act, NULL) == 0);
85	ATF_REQUIRE(sigaddset(&set, SIGALRM) == 0);
86	ATF_REQUIRE(sigprocmask(SIG_SETMASK, &set, NULL) == 0);
87
88	/*
89	 * Create the timer (SIGEV_SIGNAL).
90	 */
91	evt.sigev_signo = SIGALRM;
92	evt.sigev_value.sival_ptr = &t;
93	evt.sigev_notify = SIGEV_SIGNAL;
94
95	ATF_REQUIRE(timer_create(cid, &evt, &t) == 0);
96
97	/*
98	 * Start the timer. After this, unblock the signal.
99	 */
100	tim.it_value.tv_sec = expire ? 5 : 1;
101	tim.it_value.tv_nsec = 0;
102
103	ATF_REQUIRE(timer_settime(t, 0, &tim, NULL) == 0);
104
105	(void)sigprocmask(SIG_UNBLOCK, &set, NULL);
106	(void)sleep(2);
107
108	if (expire) {
109		if (!fail)
110			atf_tc_fail("timer fired too soon");
111	} else {
112		if (fail)
113			atf_tc_fail("timer failed to fire");
114	}
115
116	ATF_REQUIRE(timer_delete(t) == 0);
117}
118
119ATF_TC(timer_create_err);
120ATF_TC_HEAD(timer_create_err, tc)
121{
122	atf_tc_set_md_var(tc, "descr",
123	    "Check errors from timer_create(2) (PR lib/42434");
124}
125
126ATF_TC_BODY(timer_create_err, tc)
127{
128	struct sigevent ev;
129
130	(void)memset(&ev, 0, sizeof(struct sigevent));
131
132	errno = 0;
133	ev.sigev_signo = -1;
134	ev.sigev_notify = SIGEV_SIGNAL;
135
136	ATF_REQUIRE_ERRNO(EINVAL, timer_create(CLOCK_REALTIME, &ev, &t) == -1);
137
138	errno = 0;
139	ev.sigev_signo = SIGUSR1;
140	ev.sigev_notify = SIGEV_THREAD + 100;
141
142	ATF_REQUIRE_ERRNO(EINVAL, timer_create(CLOCK_REALTIME, &ev, &t) == -1);
143}
144
145ATF_TC(timer_create_real);
146ATF_TC_HEAD(timer_create_real, tc)
147{
148
149	atf_tc_set_md_var(tc, "descr",
150	    "Checks timer_create(2) with CLOCK_REALTIME and sigevent(3), "
151	    "SIGEV_SIGNAL");
152}
153
154ATF_TC_BODY(timer_create_real, tc)
155{
156	timer_signal_create(CLOCK_REALTIME, false);
157}
158
159ATF_TC(timer_create_mono);
160ATF_TC_HEAD(timer_create_mono, tc)
161{
162
163	atf_tc_set_md_var(tc, "descr",
164	    "Checks timer_create(2) with CLOCK_MONOTONIC and sigevent(3), "
165	    "SIGEV_SIGNAL");
166}
167
168ATF_TC_BODY(timer_create_mono, tc)
169{
170	timer_signal_create(CLOCK_MONOTONIC, false);
171}
172
173ATF_TC(timer_create_real_expire);
174ATF_TC_HEAD(timer_create_real_expire, tc)
175{
176
177	atf_tc_set_md_var(tc, "descr",
178	    "Checks timer_create(2) with CLOCK_REALTIME and sigevent(3), "
179	    "SIGEV_SIGNAL, with expiration");
180}
181
182ATF_TC_BODY(timer_create_real_expire, tc)
183{
184	timer_signal_create(CLOCK_REALTIME, true);
185}
186
187ATF_TC(timer_create_mono_expire);
188ATF_TC_HEAD(timer_create_mono_expire, tc)
189{
190
191	atf_tc_set_md_var(tc, "descr",
192	    "Checks timer_create(2) with CLOCK_MONOTONIC and sigevent(3), "
193	    "SIGEV_SIGNAL, with expiration");
194}
195
196ATF_TC_BODY(timer_create_mono_expire, tc)
197{
198	timer_signal_create(CLOCK_MONOTONIC, true);
199}
200
201ATF_TP_ADD_TCS(tp)
202{
203
204	ATF_TP_ADD_TC(tp, timer_create_err);
205	ATF_TP_ADD_TC(tp, timer_create_real);
206	ATF_TP_ADD_TC(tp, timer_create_mono);
207	ATF_TP_ADD_TC(tp, timer_create_real_expire);
208	ATF_TP_ADD_TC(tp, timer_create_mono_expire);
209
210	return atf_no_error();
211}
212