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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2007 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include <signal.h>
#include <time.h>
#include <stdlib.h>
#include <stdio.h>
#include <errno.h>
#include <string.h>
#define NANOSEC 1000000000
int
main(int argc, char **argv)
{
struct sigevent ev;
struct itimerspec ts;
sigset_t set;
timer_t tid;
char *cmd = argv[0];
int sig;
ev.sigev_notify = SIGEV_SIGNAL;
ev.sigev_signo = SIGUSR1;
if (timer_create(CLOCK_REALTIME, &ev, &tid) == -1) {
(void) fprintf(stderr, "%s: cannot create CLOCK_HIGHRES "
"timer: %s\n", cmd, strerror(errno));
exit(EXIT_FAILURE);
}
(void) sigemptyset(&set);
(void) sigaddset(&set, SIGUSR1);
(void) sigprocmask(SIG_BLOCK, &set, NULL);
ts.it_value.tv_sec = 1;
ts.it_value.tv_nsec = 0;
ts.it_interval.tv_sec = 0;
ts.it_interval.tv_nsec = NANOSEC / 2;
if (timer_settime(tid, TIMER_RELTIME, &ts, NULL) == -1) {
(void) fprintf(stderr, "%s: timer_settime() failed: %s\n",
cmd, strerror(errno));
exit(EXIT_FAILURE);
}
do {
(void) sigwait(&set, &sig);
} while(sig != SIGUSR1);
/*NOTREACHED*/
return (0);
}
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