1 /*
2 * Copyright (C) 2008 The Android Open Source Project
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in
12 * the documentation and/or other materials provided with the
13 * distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
18 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
22 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
25 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28 #include <stdio.h>
29 #include <time.h>
30 #include <signal.h>
31 #include <pthread.h>
32 #include <string.h>
33 #include <unistd.h>
34
35 static timer_t tid;
36 static int count;
37
38 /* this test program is there to check that disarming a timer
39 * can be done by calling timer_settime() with an it_interval
40 * value of 0
41 */
42 void
handle(sigval_t v)43 handle(sigval_t v)
44 {
45 time_t t;
46 char p[32];
47 struct itimerspec ts;
48
49 time(&t);
50 strftime(p, sizeof(p), "%T", localtime(&t));
51 printf("%s thread %d, val = %d, signal captured.\n",
52 p, (int)pthread_self(), v.sival_int);
53 count += 1;
54
55 /* this should disable the timer, and hence make 'count' no more than 1 */
56 ts.it_value.tv_sec = 0;
57 ts.it_value.tv_nsec = 0;
58 ts.it_interval.tv_sec = 1;
59 ts.it_interval.tv_nsec = 0;
60 timer_settime(tid, TIMER_ABSTIME, &ts, NULL);
61
62 return;
63 }
64
65 int
create(int seconds,int id)66 create(int seconds, int id)
67 {
68 struct sigevent se;
69 struct itimerspec ts, ots;
70
71 memset(&se, 0, sizeof (se));
72 se.sigev_notify = SIGEV_THREAD;
73 se.sigev_notify_function = handle;
74 se.sigev_value.sival_int = id;
75
76 if (timer_create (CLOCK_REALTIME, &se, &tid) < 0)
77 {
78 perror ("timer_creat");
79 return -1;
80 }
81 puts ("timer_create successfully.");
82 ts.it_value.tv_sec = 0;
83 ts.it_value.tv_nsec = 1;
84 ts.it_interval.tv_sec = seconds;
85 ts.it_interval.tv_nsec = 0;
86 if (timer_settime (tid, TIMER_ABSTIME, &ts, &ots) < 0)
87 {
88 perror ("timer_settime");
89 return -1;
90 }
91 return 0;
92 }
93
94 int
main(void)95 main (void)
96 {
97 if (create (1, 1) < 0) return 1;
98 sleep (4);
99
100 if (count == 1) {
101 printf("OK\n");
102 return 0;
103 } else {
104 printf("KO (count=%d)\n", count);
105 return 1;
106 }
107 }
108