1 /* 2 * Copyright (c) 2002, Intel Corporation. All rights reserved. 3 * Created by: julie.n.fleischer REMOVE-THIS AT intel DOT com 4 * This file is licensed under the GPL license. For the full content 5 * of this license, see the COPYING file at the top level of this 6 * source tree. 7 8 * Test that timer_gettime() sets sets itimerspec.it_value to the 9 * amount of time remaining. 10 * - Create and arm a timer. 11 * - Call timer_gettime(). 12 * - Ensure the value returned is within ACCEPTABLEDELTA less than 13 * the value set. 14 * 15 * Signal SIGCONT will be used so that it will not affect the test if 16 * the timer expires. 17 * Clock CLOCK_REALTIME will be used. 18 */ 19 20 #include <time.h> 21 #include <signal.h> 22 #include <stdio.h> 23 #include <unistd.h> 24 #include <stdlib.h> 25 #include "posixtest.h" 26 27 #define TIMERSEC 5 28 #define ACCEPTABLEDELTA 1 29 30 int main(void) 31 { 32 struct sigevent ev; 33 timer_t tid; 34 struct itimerspec itsset, itsget; 35 int delta; 36 37 ev.sigev_notify = SIGEV_SIGNAL; 38 ev.sigev_signo = SIGCONT; 39 40 itsset.it_interval.tv_sec = 0; 41 itsset.it_interval.tv_nsec = 0; 42 itsset.it_value.tv_sec = TIMERSEC; 43 itsset.it_value.tv_nsec = 0; 44 45 if (timer_create(CLOCK_REALTIME, &ev, &tid) != 0) { 46 perror("timer_create() did not return success\n"); 47 return PTS_UNRESOLVED; 48 } 49 50 if (timer_settime(tid, 0, &itsset, NULL) != 0) { 51 perror("timer_settime() did not return success\n"); 52 return PTS_UNRESOLVED; 53 } 54 55 if (timer_gettime(tid, &itsget) != 0) { 56 perror("timer_gettime() did not return success\n"); 57 return PTS_UNRESOLVED; 58 } 59 60 delta = itsset.it_value.tv_sec - itsget.it_value.tv_sec; 61 62 if (delta < 0) { 63 printf("FAIL: timer_gettime() value > timer_settime()\n"); 64 printf("%d > %d\n", (int)itsget.it_value.tv_sec, 65 (int)itsset.it_value.tv_sec); 66 return PTS_FAIL; 67 } 68 69 if (delta <= ACCEPTABLEDELTA) { 70 printf("Test PASSED\n"); 71 return PTS_PASS; 72 } 73 74 printf("FAIL: timer_gettime() value !~= timer_settime()\n"); 75 printf("%d !~= %d\n", (int)itsget.it_value.tv_sec, 76 (int)itsset.it_value.tv_sec); 77 return PTS_FAIL; 78 } 79
