| /* |
| * 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() resets the time until the next timer |
| * expiration to value.it_value if the timer was already armed. |
| * |
| * - set up a timer with value.it_value = V and value.it_interval > 0 |
| * - ensure that timer expires correctly the first time |
| * - change time value to value.it_value = V' |
| * - ensure that this new timer expires correctly |
| * - repeat above 2 steps NUMREPS times |
| * |
| * For this test, signal SIGTOTEST will be used, 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 SIGTOTEST SIGALRM |
| #define TIMERVALUESEC 2 |
| #define TIMERINTERVALSEC 5 |
| #define INCREMENT 2 |
| #define ACCEPTABLEDELTA 1 |
| |
| #define NUMREPS 5 |
| |
| int main(int argc, char *argv[]) |
| { |
| struct sigevent ev; |
| timer_t tid; |
| struct itimerspec its; |
| struct timespec tsbefore, tsafter; |
| sigset_t set; |
| int sig, i, failure = 0, timeelapsed, delta; |
| |
| /* |
| * set up signal set containing SIGTOTEST that will be used |
| * in call to sigwait immediately after timer is set |
| */ |
| |
| if (sigemptyset(&set) == -1) { |
| perror("sigemptyset() failed\n"); |
| return PTS_UNRESOLVED; |
| } |
| |
| if (sigaddset(&set, SIGTOTEST) == -1) { |
| perror("sigaddset() failed\n"); |
| return PTS_UNRESOLVED; |
| } |
| |
| if (sigprocmask (SIG_BLOCK, &set, NULL) == -1) { |
| perror("sigprocmask() failed\n"); |
| return PTS_UNRESOLVED; |
| } |
| |
| /* |
| * set up timer to perform action SIGTOTEST on expiration |
| */ |
| ev.sigev_notify = SIGEV_SIGNAL; |
| ev.sigev_signo = SIGTOTEST; |
| |
| its.it_interval.tv_sec = TIMERINTERVALSEC; |
| its.it_interval.tv_nsec = 0; |
| its.it_value.tv_sec = TIMERVALUESEC; |
| 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; |
| } |
| |
| /* |
| * - for i = 1 to NUMREPS |
| * - get the time |
| * - call timer_settime() |
| * - wait for the signal |
| * - get the time again => value.it_value |
| * - set new value.it_value and value.it_interval to old + INVERVAL |
| * - delete the timer |
| */ |
| |
| for (i = 0; i < NUMREPS; i++) { |
| printf("Test for value %d\n", (int) its.it_value.tv_sec); |
| if (clock_gettime(CLOCK_REALTIME, &tsbefore) != 0) { |
| perror("clock_gettime() did not return success\n"); |
| return PTS_UNRESOLVED; |
| } |
| |
| if (timer_settime(tid, 0, &its, NULL) != 0) { |
| perror("timer_settime() did not return success\n"); |
| return PTS_UNRESOLVED; |
| } |
| |
| if (sigwait(&set, &sig) == -1) { |
| perror("sigwait() failed\n"); |
| return PTS_UNRESOLVED; |
| } |
| |
| if (clock_gettime(CLOCK_REALTIME, &tsafter) != 0) { |
| perror("clock_gettime() did not return success\n"); |
| return PTS_UNRESOLVED; |
| } |
| |
| timeelapsed = tsafter.tv_sec-tsbefore.tv_sec; |
| |
| if (timeelapsed < 0) { |
| perror("clock_gettime inconsistent\n"); |
| return PTS_UNRESOLVED; |
| } |
| |
| delta = timeelapsed-its.it_value.tv_sec; |
| if ((delta > ACCEPTABLEDELTA) || (delta < 0)) { |
| printf("FAIL: timer_settime() invalid on %d\n", |
| (int) its.it_value.tv_sec); |
| failure = 1; |
| } |
| |
| its.it_interval.tv_sec += INCREMENT; |
| its.it_value.tv_sec += INCREMENT; |
| } |
| |
| if (timer_delete(tid) != 0) { |
| perror("timer_delete() did not return success\n"); |
| return PTS_UNRESOLVED; |
| } |
| |
| if (failure) { |
| printf("timer_settime() failed on at least one value\n"); |
| return PTS_FAIL; |
| } else { |
| printf("Test PASSED\n"); |
| return PTS_PASS; |
| } |
| } |