| /* |
| * Copyright (c) 2002, Intel Corporation. All rights reserved. |
| * Created by: julie.n.fleischer REMOVE-THIS AT intel DOT com |
| * This file is licensed under the GPL license. For the full content |
| * of this license, see the COPYING file at the top level of this |
| * source tree. |
| * |
| * Test that timer_settime() will return ovalue.it_value = the previous |
| * amount of time before the timer would have expired. |
| * - set up a timer to expire in TIMERSEC seconds |
| * - sleep for TIMERSEC-TIMELEFT seconds |
| * - set up a new timer |
| * - compare TIMELEFT and the value in ovalue.it_value and ensure they |
| * are within ACCEPTABLEDELTA of each other |
| * |
| * For this test, signal SIGCONT will be used so that the test will |
| * not abort. Clock CLOCK_REALTIME will be used. |
| */ |
| |
| #include <time.h> |
| #include <signal.h> |
| #include <stdio.h> |
| #include <unistd.h> |
| #include <stdlib.h> |
| #include "posixtest.h" |
| |
| #define TIMERSEC 7 |
| #define TIMELEFT 5 |
| #define ACCEPTABLEDELTA 1 |
| |
| int main(int argc, char *argv[]) |
| { |
| struct sigevent ev; |
| timer_t tid; |
| struct itimerspec its, oits; |
| |
| ev.sigev_notify = SIGEV_SIGNAL; |
| ev.sigev_signo = SIGCONT; |
| |
| its.it_interval.tv_sec = 0; its.it_interval.tv_nsec = 0; |
| its.it_value.tv_sec = TIMERSEC; |
| its.it_value.tv_nsec = 0; |
| |
| if (timer_create(CLOCK_REALTIME, &ev, &tid) != 0) { |
| perror("timer_create() did not return success\n"); |
| return PTS_UNRESOLVED; |
| } |
| |
| if (timer_settime(tid, 0, &its, &oits) != 0) { |
| perror("timer_settime() did not return success\n"); |
| return PTS_UNRESOLVED; |
| } |
| |
| sleep(TIMERSEC-TIMELEFT); |
| |
| if (timer_settime(tid, 0, &its, &oits) != 0) { |
| perror("timer_settime() did not return success\n"); |
| return PTS_UNRESOLVED; |
| } |
| |
| if (abs(oits.it_value.tv_sec-TIMELEFT) <= ACCEPTABLEDELTA) { |
| printf("Test PASSED\n"); |
| return PTS_PASS; |
| } else { |
| printf("Test FAILED: time left %d oits.it_value.tv_sec %d\n", |
| TIMELEFT, (int) oits.it_value.tv_sec); |
| return PTS_FAIL; |
| } |
| |
| printf("This code should not be executed.\n"); |
| return PTS_UNRESOLVED; |
| } |