1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22/*
23 * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
24 * Use is subject to license terms.
25 */
26
27#pragma ident	"@(#)tst.sigwait.c	1.1	06/08/28 SMI"
28
29#include <signal.h>
30#include <time.h>
31#include <stdlib.h>
32#include <stdio.h>
33#include <errno.h>
34#include <string.h>
35
36void
37main(int argc, char **argv)
38{
39	struct sigevent ev;
40	struct itimerspec ts;
41	sigset_t set;
42	timer_t tid;
43	char *cmd = argv[0];
44
45	ev.sigev_notify = SIGEV_SIGNAL;
46	ev.sigev_signo = SIGUSR1;
47
48	if (timer_create(CLOCK_REALTIME, &ev, &tid) == -1) {
49		(void) fprintf(stderr, "%s: cannot create CLOCK_HIGHRES "
50		    "timer: %s\n", cmd, strerror(errno));
51		exit(EXIT_FAILURE);
52	}
53
54	(void) sigemptyset(&set);
55	(void) sigaddset(&set, SIGUSR1);
56	(void) sigprocmask(SIG_BLOCK, &set, NULL);
57
58	ts.it_value.tv_sec = 1;
59	ts.it_value.tv_nsec = 0;
60	ts.it_interval.tv_sec = 0;
61	ts.it_interval.tv_nsec = NANOSEC / 2;
62
63	if (timer_settime(tid, TIMER_RELTIME, &ts, NULL) == -1) {
64		(void) fprintf(stderr, "%s: timer_settime() failed: %s\n",
65		    cmd, strerror(errno));
66		exit(EXIT_FAILURE);
67	}
68
69	for (;;) {
70		(void) sigwait(&set);
71	}
72}
73