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 if TIMER_ABSTIME is set in flags, then clock_nanosleep() 9 * sleeps for the absolute time specified in rqtp. 10 * 11 * - Get the current time. 12 * - Set clock_nanosleep() to sleep for current time + SLEEPSEC 13 * seconds. 14 * - Get the current time after sleeping and ensure it is within 15 * ACCEPTABLEDELTA of current time + SLEEPSEC 16 */ 17 #include <stdio.h> 18 #include <time.h> 19 #include "posixtest.h" 20 21 #define SLEEPSEC 3 22 #define ACCEPTABLEDELTA 1 23 24 int main(void) 25 { 26 struct timespec tssleep, tsbefore, tsafter; 27 int sleepuntilsec, flags = 0; 28 29 if (clock_gettime(CLOCK_REALTIME, &tsbefore) != 0) { 30 perror("clock_gettime() did not return success\n"); 31 return PTS_UNRESOLVED; 32 } 33 34 sleepuntilsec = tsbefore.tv_sec + SLEEPSEC; 35 tssleep.tv_sec = sleepuntilsec; 36 tssleep.tv_nsec = tsbefore.tv_nsec; 37 38 flags |= TIMER_ABSTIME; 39 if (clock_nanosleep(CLOCK_REALTIME, flags, &tssleep, NULL) != 0) { 40 printf("clock_nanosleep() did not return success\n"); 41 return PTS_UNRESOLVED; 42 } 43 44 if (clock_gettime(CLOCK_REALTIME, &tsafter) == -1) { 45 perror("Error in clock_gettime()\n"); 46 return PTS_UNRESOLVED; 47 } 48 49 if (tsafter.tv_sec >= sleepuntilsec) { 50 if (tsafter.tv_sec <= (sleepuntilsec + ACCEPTABLEDELTA)) { 51 printf("Test PASSED\n"); 52 return PTS_PASS; 53 } else { 54 printf("clock_nanosleep() slept too long\n"); 55 return PTS_FAIL; 56 } 57 } 58 59 printf("clock_nanosleep() did not sleep long enough\n"); 60 return PTS_FAIL; 61 } 62
