| /* |
| * 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_gettime() sets itimerspec.it_value to the amount of |
| * time remaining after it has expired once and is reloaded. Also |
| * test that timer_gettime() sets itimerspec.it_interval to the |
| * interval remaining. |
| * - Create and arm a timer for TIMERVALSEC seconds with interval |
| * TIMERINTERVALSEC seconds. |
| * - Sleep for SLEEPSEC > TIMERVALSEC, but < TIMERINTERVAL seconds |
| * - Call timer_gettime(). |
| * - Ensure the value returned is within ACCEPTABLEDELTA less than |
| * TIMERINTERVALSEC - (SLEEPSEC-TIMERVALSEC). |
| * - Ensure that interval TIMERINTERVALSEC is returned. |
| * |
| * Signal SIGCONT will be used so that it will not affect the test if |
| * the timer expires. |
| * 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 TIMERVALSEC 2 |
| #define TIMERINTERVALSEC 8 |
| #define SLEEPSEC 3 |
| #define ACCEPTABLEDELTA 1 |
| #define RESOLUTION 1000000 |
| |
| int main(int argc, char *argv[]) |
| { |
| struct sigevent ev; |
| timer_t tid; |
| struct itimerspec itsset, itsget; |
| int delta; |
| int expectedleft; |
| |
| ev.sigev_notify = SIGEV_SIGNAL; |
| ev.sigev_signo = SIGCONT; |
| |
| itsset.it_interval.tv_sec = TIMERINTERVALSEC; |
| itsset.it_interval.tv_nsec = 2*RESOLUTION; |
| itsset.it_value.tv_sec = TIMERVALSEC; |
| itsset.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, &itsset, NULL) != 0) { |
| perror("timer_settime() did not return success\n"); |
| return PTS_UNRESOLVED; |
| } |
| |
| if (sleep(SLEEPSEC) != 0) { |
| perror("sleep() did not return 0\n"); |
| return PTS_UNRESOLVED; |
| } |
| |
| if (timer_gettime(tid, &itsget) != 0) { |
| perror("timer_gettime() did not return success\n"); |
| return PTS_UNRESOLVED; |
| } |
| |
| /* |
| * Check interval first |
| */ |
| if ((itsget.it_interval.tv_sec != itsset.it_interval.tv_sec) || |
| (itsget.it_interval.tv_nsec/RESOLUTION != itsset.it_interval.tv_nsec/RESOLUTION)) { |
| printf("FAIL: it_interval not correctly set\n"); |
| printf("%d != (expected) %d or %d != (expected) %d\n", |
| (int) itsget.it_interval.tv_sec, |
| (int) itsset.it_interval.tv_sec, |
| (int) itsget.it_interval.tv_nsec, |
| (int) itsset.it_interval.tv_nsec); |
| return PTS_UNRESOLVED; |
| } |
| |
| /* |
| * Check value next |
| * value should be < TIMERINTERVALSEC - (SLEEPSEC-TIMERVALSEC) |
| */ |
| expectedleft = itsset.it_interval.tv_sec - |
| (SLEEPSEC - itsset.it_value.tv_sec); |
| delta = expectedleft - itsget.it_value.tv_sec; |
| |
| if (delta < 0) { |
| printf("FAIL: timer_gettime() value > time expected left\n"); |
| printf("%d > %d\n", (int) itsget.it_value.tv_sec, |
| expectedleft); |
| return PTS_FAIL; |
| } |
| |
| if (delta <= ACCEPTABLEDELTA) { |
| printf("Test PASSED\n"); |
| return PTS_PASS; |
| } else { |
| printf("FAIL: timer_gettime() value !~= time expected left\n"); |
| printf("%d !~= %d\n", (int) itsget.it_value.tv_sec, |
| (int) itsset.it_value.tv_sec - SLEEPSEC); |
| return PTS_FAIL; |
| } |
| |
| printf("This code should not be executed\n"); |
| return PTS_UNRESOLVED; |
| } |