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 35static timer_t tid; 36static 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 */ 42void 43handle(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 65int 66create(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 94int 95main (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