xref: /xnu-8796.121.2/tests/kqueue_add_and_trigger.c (revision c54f35ca767986246321eb901baf8f5ff7923f6a)
1*c54f35caSApple OSS Distributions #include <unistd.h>
2*c54f35caSApple OSS Distributions #include <errno.h>
3*c54f35caSApple OSS Distributions #include <sys/event.h>
4*c54f35caSApple OSS Distributions #include <darwintest.h>
5*c54f35caSApple OSS Distributions 
6*c54f35caSApple OSS Distributions T_GLOBAL_META(T_META_RUN_CONCURRENTLY(true));
7*c54f35caSApple OSS Distributions 
8*c54f35caSApple OSS Distributions /* <rdar://problem/28139044> EVFILT_USER doesn't properly support add&fire atomic combination
9*c54f35caSApple OSS Distributions  *
10*c54f35caSApple OSS Distributions  * Chek that using EV_ADD and EV_TRIGGER on a EV_USER actually trigger the event just added.
11*c54f35caSApple OSS Distributions  *
12*c54f35caSApple OSS Distributions  */
13*c54f35caSApple OSS Distributions 
14*c54f35caSApple OSS Distributions T_DECL(kqueue_add_and_trigger_evfilt_user, "Add and trigger EVFILT_USER events with kevent ")
15*c54f35caSApple OSS Distributions {
16*c54f35caSApple OSS Distributions 	int kq_fd, ret;
17*c54f35caSApple OSS Distributions 	struct kevent ret_kev;
18*c54f35caSApple OSS Distributions 	const struct kevent kev = {
19*c54f35caSApple OSS Distributions 		.ident = 1,
20*c54f35caSApple OSS Distributions 		.filter = EVFILT_USER,
21*c54f35caSApple OSS Distributions 		.flags = EV_ADD | EV_CLEAR,
22*c54f35caSApple OSS Distributions 		.fflags = NOTE_TRIGGER,
23*c54f35caSApple OSS Distributions 	};
24*c54f35caSApple OSS Distributions 	const struct timespec timeout = {
25*c54f35caSApple OSS Distributions 		.tv_sec = 1,
26*c54f35caSApple OSS Distributions 		.tv_nsec = 0,
27*c54f35caSApple OSS Distributions 	};
28*c54f35caSApple OSS Distributions 
29*c54f35caSApple OSS Distributions 	T_ASSERT_POSIX_SUCCESS((kq_fd = kqueue()), NULL);
30*c54f35caSApple OSS Distributions 	ret = kevent(kq_fd, &kev, 1, &ret_kev, 1, &timeout);
31*c54f35caSApple OSS Distributions 
32*c54f35caSApple OSS Distributions 	T_ASSERT_POSIX_SUCCESS(ret, "kevent");
33*c54f35caSApple OSS Distributions 
34*c54f35caSApple OSS Distributions 	T_ASSERT_EQ(ret, 1, "kevent with add and trigger, ret");
35*c54f35caSApple OSS Distributions 	T_ASSERT_EQ(ret_kev.ident, 1, "kevent with add and trigger, ident");
36*c54f35caSApple OSS Distributions 	T_ASSERT_EQ(ret_kev.filter, EVFILT_USER, "kevent with add and trigger, filter");
37*c54f35caSApple OSS Distributions }
38