test_timer_create.c revision e16cb84e2324f05334d18dcf5956f20f44262b62 
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
35void
36handle(sigval_t v)
37{
38    time_t  t;
39    char    p[32];
40
41    time(&t);
42    strftime(p, sizeof(p), "%T", localtime(&t));
43    printf("%s thread %d, val = %d, signal captured.\n",
44            p,  (int)pthread_self(), v.sival_int);
45    return;
46}
47
48int
49create(int seconds, int id)
50{
51    timer_t tid;
52    struct sigevent se;
53    struct itimerspec ts, ots;
54
55    memset(&se, 0, sizeof (se));
56    se.sigev_notify = SIGEV_THREAD;
57    se.sigev_notify_function = handle;
58    se.sigev_value.sival_int = id;
59
60    if (timer_create (CLOCK_REALTIME, &se, &tid) < 0)
61    {
62        perror ("timer_creat");
63        return -1;
64    }
65    puts ("timer_create successfully.");
66    ts.it_value.tv_sec = 3;
67    ts.it_value.tv_nsec = 0;
68    ts.it_interval.tv_sec = seconds;
69    ts.it_interval.tv_nsec = 0;
70    if (timer_settime (tid, TIMER_ABSTIME, &ts, &ots) < 0)
71    {
72        perror ("timer_settime");
73        return -1;
74    }
75    return 0;
76}
77
78int
79main (void)
80{
81    if (create (3, 1) < 0) return 1;
82    if (create (5, 2) < 0) return 1;
83    for (;;)
84    {
85        sleep (10);
86    }
87    return 0;
88}
89