X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/4d15aeb193b2c68f1d38666c317f8d3734f5f083..5ba3f43ea354af8ad55bea84372a2bc834d8757c:/tools/tests/kqueue_tests/kqueue_timer_tests.c diff --git a/tools/tests/kqueue_tests/kqueue_timer_tests.c b/tools/tests/kqueue_tests/kqueue_timer_tests.c deleted file mode 100644 index 9a4db010e..000000000 --- a/tools/tests/kqueue_tests/kqueue_timer_tests.c +++ /dev/null @@ -1,255 +0,0 @@ -#include -#include -#include -#include -#include -#include -#include -#include - -int kq, passed, failed; - -/* - * Wait for given kevent, which should return in 'expected' usecs. - */ -int -do_simple_kevent(struct kevent64_s *kev, uint64_t expected) -{ - int ret; - uint64_t elapsed_usecs, delta_usecs; - struct timespec timeout; - struct timeval before, after; - - /* time out after 1 sec extra delay */ - timeout.tv_sec = (expected / (1000 * 1000)) + 1; - timeout.tv_nsec = (expected % (1000 * 1000)) * 1000; - - /* measure time for the kevent */ - gettimeofday(&before, NULL); - ret = kevent64(kq, kev, 1, kev, 1, 0, &timeout); - gettimeofday(&after, NULL); - - if (ret < 1 || (kev->flags & EV_ERROR)) { - printf("\tfailure: kevent returned %d, error %d\n", ret, - (ret == -1 ? errno : (int) kev->data)); - return 0; - } - - /* did it work? */ - elapsed_usecs = (after.tv_sec - before.tv_sec) * (1000 * 1000) + - (after.tv_usec - before.tv_usec); - delta_usecs = abs(elapsed_usecs - (expected)); - - /* failure if we're 30% off, or 50 mics late */ - if (delta_usecs > (30 * expected / 100.0) && delta_usecs > 50) { - printf("\tfailure: expected %lld usec, measured %lld usec.\n", - expected, elapsed_usecs); - return 0; - } else { - printf("\tsuccess.\n"); - return 1; - } -} - -void -test_absolute_kevent(int time, int scale) -{ - struct timeval tv; - struct kevent64_s kev; - uint64_t nowus, expected, deadline; - int ret; - int timescale = 0; - - gettimeofday(&tv, NULL); - nowus = tv.tv_sec * (1000 * 1000LL) + tv.tv_usec; - - switch (scale) { - case NOTE_SECONDS: - printf("Testing %d sec absolute timer...\n", time); - timescale = 1000 * 1000; - break; - case NOTE_USECONDS: - printf("Testing %d usec absolute timer...\n", time); - timescale = 1; - break; - case 0: - printf("Testing %d msec absolute timer...\n", time); - timescale = 1000; - break; - default: - printf("Failure: scale 0x%x not recognized.\n", scale); - return; - } - - expected = time * timescale; - deadline = nowus / timescale + time; - - /* deadlines in the past should fire immediately */ - if (time < 0) - expected = 0; - - EV_SET64(&kev, 1, EVFILT_TIMER, EV_ADD, - NOTE_ABSOLUTE | scale, deadline, 0,0,0); - ret = do_simple_kevent(&kev, expected); - - if (ret) - passed++; - else - failed++; -} - -void -test_oneshot_kevent(int time, int scale) -{ - int ret; - uint64_t expected = 0; - struct kevent64_s kev; - - switch (scale) { - case NOTE_SECONDS: - printf("Testing %d sec interval timer...\n", time); - expected = time * (1000 * 1000); - break; - case NOTE_USECONDS: - printf("Testing %d usec interval timer...\n", time); - expected = time; - break; - case NOTE_NSECONDS: - printf("Testing %d nsec interval timer...\n", time); - expected = time / 1000; - break; - case 0: - printf("Testing %d msec interval timer...\n", time); - expected = time * 1000; - break; - default: - printf("Failure: scale 0x%x not recognized.\n", scale); - return; - } - - /* deadlines in the past should fire immediately */ - if (time < 0) - expected = 0; - - EV_SET64(&kev, 2, EVFILT_TIMER, EV_ADD | EV_ONESHOT, scale, time, - 0, 0, 0); - ret = do_simple_kevent(&kev, expected); - - if (ret) - passed++; - else - failed++; - -} - -void -test_repeating_kevent(int usec) -{ - struct kevent64_s kev; - int expected_pops, ret; - - expected_pops = 1000 * 1000 / usec; - printf("Testing repeating kevent for %d pops in a second...\n", - expected_pops); - - EV_SET64(&kev, 3, EVFILT_TIMER, EV_ADD, NOTE_USECONDS, usec, 0, 0, 0); - ret = kevent64(kq, &kev, 1, NULL, 0, 0, NULL); - if (ret != 0) { - printf("\tfailure: kevent64 returned %d\n", ret); - failed++; - return; - } - - /* sleep 1 second */ - usleep(1000 * 1000); - ret = kevent64(kq, NULL, 0, &kev, 1, 0, NULL); - if (ret != 1 || (kev.flags & EV_ERROR)) { - printf("\tfailure: kevent64 returned %d\n", ret); - failed++; - return; - } - - /* check how many times the timer fired: within 5%? */ - if (kev.data > expected_pops + (expected_pops / 20) || - kev.data < expected_pops - (expected_pops / 20)) { - printf("\tfailure: saw %lld pops.\n", kev.data); - failed++; - } else { - printf("\tsuccess: saw %lld pops.\n", kev.data); - passed++; - } - - EV_SET64(&kev, 3, EVFILT_TIMER, EV_DELETE, 0, 0, 0, 0, 0); - ret = kevent64(kq, &kev, 1, NULL, 0, 0, NULL); - if (ret != 0) { - printf("\tfailed to stop repeating timer: %d\n", ret); - } -} - -void -test_updated_kevent(int first, int second) -{ - struct kevent64_s kev; - int ret; - - printf("Testing update from %d to %d msecs...\n", first, second); - - EV_SET64(&kev, 4, EVFILT_TIMER, EV_ADD|EV_ONESHOT, 0, first, 0, 0, 0); - ret = kevent64(kq, &kev, 1, NULL, 0, 0, NULL); - if (ret != 0) { - printf("\tfailure: initial kevent returned %d\n", ret); - failed++; - return; - } - - EV_SET64(&kev, 4, EVFILT_TIMER, EV_ONESHOT, 0, second, 0, 0, 0); - if (second < 0) - second = 0; - ret = do_simple_kevent(&kev, second * 1000); - if (ret) - passed++; - else - failed++; -} - -int -main(void) -{ - struct timeval tv; - struct kevent64_s kev; - uint64_t nowms, deadline; - - kq = kqueue(); - assert(kq > 0); - passed = 0; - failed = 0; - - test_absolute_kevent(100, 0); - test_absolute_kevent(200, 0); - test_absolute_kevent(300, 0); - test_absolute_kevent(1000, 0); - test_absolute_kevent(500, NOTE_USECONDS); - test_absolute_kevent(100, NOTE_USECONDS); - test_absolute_kevent(5, NOTE_SECONDS); - test_absolute_kevent(-1000, 0); - - test_oneshot_kevent(1, NOTE_SECONDS); - test_oneshot_kevent(10, 0); - test_oneshot_kevent(200, NOTE_USECONDS); - test_oneshot_kevent(300000, NOTE_NSECONDS); - test_oneshot_kevent(-1, NOTE_SECONDS); - - test_repeating_kevent(100 * 1000); - test_repeating_kevent(5 * 1000); - test_repeating_kevent(200); - test_repeating_kevent(50); - test_repeating_kevent(10); - - test_updated_kevent(1000, 2000); - test_updated_kevent(2000, 1000); - test_updated_kevent(1000, -1); - - printf("\nFinished: %d tests passed, %d failed.\n", passed, failed); - - exit(EXIT_SUCCESS); -}