Function test_disable_enable

lib_fiber/samples-c/test/kqueue_hook/main.c:192–240

}

static void test_disable_enable(int fd_read, int fd_write)
{
	int kqfd;
	struct kevent changes[1];
	struct kevent events[2];
	int n;
	char buf[8];

	kqfd = kqueue();
	if (kqfd < 0) {
		fail("kqueue() failed (disable/enable)");
		return;
	}

	EV_SET(&changes[0], fd_read, EVFILT_READ, EV_ADD | EV_DISABLE,
		0, 0, NULL);
	if (kevent(kqfd, changes, 1, NULL, 0, NULL) < 0) {
		fail("kevent add disable failed");
		return;
	}

	if (write(fd_write, "d", 1) != 1) {
		fail("write failed (disable)");
		return;
	}

	memset(events, 0, sizeof(events));
	n = kevent(kqfd, NULL, 0, events, 2, &(struct timespec){0, 0});
	if (n != 0) {
		fail("disable: event should be disabled");
		return;
	}

	EV_SET(&changes[0], fd_read, EVFILT_READ, EV_ENABLE, 0, 0, NULL);
	if (kevent(kqfd, changes, 1, NULL, 0, NULL) < 0) {
		fail("enable failed");
		return;
	}

	memset(events, 0, sizeof(events));
	n = kevent(kqfd, NULL, 0, events, 2, &(struct timespec){1, 0});
	if (n != 1 || !expect_filter(events, n, EVFILT_READ)) {
		fail("enable: read event missing");
		return;
	}

	(void) read(fd_read, buf, sizeof(buf));
	close(kqfd);
}

static void test_delete(int fd_read, int fd_write)
{