TEST(r, sem_close(sem), 0, "failed to close sem");
TEST(r, sem_close(sem), 0, "failed to close sem second time");
TEST(r, sem_unlink(buf), 0, "failed to unlink sem");
TEST(r, sem_close(sem), 0, "failed to close sem");
TEST(r, sem_close(sem), 0, "failed to close sem second time");
TEST(r, sem_unlink(buf), 0, "failed to unlink sem");