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tst.sigwait.c (178529) tst.sigwait.c (178534)
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

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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
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

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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
36#define NANOSEC 1000000000
37
36int
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];
38int
39main(int argc, char **argv)
40{
41 struct sigevent ev;
42 struct itimerspec ts;
43 sigset_t set;
44 timer_t tid;
45 char *cmd = argv[0];
46 int sig;
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);

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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
47
48 ev.sigev_notify = SIGEV_SIGNAL;
49 ev.sigev_signo = SIGUSR1;
50
51 if (timer_create(CLOCK_REALTIME, &ev, &tid) == -1) {
52 (void) fprintf(stderr, "%s: cannot create CLOCK_HIGHRES "
53 "timer: %s\n", cmd, strerror(errno));
54 exit(EXIT_FAILURE);

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64 ts.it_interval.tv_nsec = NANOSEC / 2;
65
66 if (timer_settime(tid, TIMER_RELTIME, &ts, NULL) == -1) {
67 (void) fprintf(stderr, "%s: timer_settime() failed: %s\n",
68 cmd, strerror(errno));
69 exit(EXIT_FAILURE);
70 }
71
69 for (;;) {
70 (void) sigwait(&set);
71 }
72 do {
73 (void) sigwait(&set, &sig);
74 } while(sig != SIGUSR1);
72
73 /*NOTREACHED*/
74 return (0);
75}
75
76 /*NOTREACHED*/
77 return (0);
78}