}
END_TEST
+START_TEST(test_semaphore_timed_abs)
+{
+ thread_t *thread;
+ timeval_t start, end, abso, diff = { .tv_usec = 50000 };
+
+ semaphore = semaphore_create(0);
+
+ time_monotonic(&start);
+ timeradd(&start, &diff, &abso);
+ ck_assert(semaphore->timed_wait_abs(semaphore, abso));
+ time_monotonic(&end);
+ ck_assert_msg(timercmp(&end, &abso, >), "end: %u.%u, abso: %u.%u",
+ end.tv_sec, end.tv_usec, abso.tv_sec, abso.tv_usec);
+
+ thread = thread_create(semaphore_run, NULL);
+
+ time_monotonic(&start);
+ diff.tv_sec = 1;
+ timeradd(&start, &diff, &abso);
+ ck_assert(!semaphore->timed_wait_abs(semaphore, abso));
+
+ thread->join(thread);
+ semaphore->destroy(semaphore);
+}
+END_TEST
+
static void *join_run(void *data)
{
/* force some context switches */
tc = tcase_create("semaphore");
tcase_add_test(tc, test_semaphore);
tcase_add_test(tc, test_semaphore_timed);
+ tcase_add_test(tc, test_semaphore_timed_abs);
suite_add_tcase(s, tc);
tc = tcase_create("thread joining");