xref: /xnu-11417.140.69/tests/kqueue_add_and_trigger.c (revision 43a90889846e00bfb5cf1d255cdc0a701a1e05a4)
1*43a90889SApple OSS Distributions #include <unistd.h>
2*43a90889SApple OSS Distributions #include <errno.h>
3*43a90889SApple OSS Distributions #include <sys/event.h>
4*43a90889SApple OSS Distributions #include <darwintest.h>
5*43a90889SApple OSS Distributions 
6*43a90889SApple OSS Distributions T_GLOBAL_META(T_META_RUN_CONCURRENTLY(true));
7*43a90889SApple OSS Distributions 
8*43a90889SApple OSS Distributions /* <rdar://problem/28139044> EVFILT_USER doesn't properly support add&fire atomic combination
9*43a90889SApple OSS Distributions  *
10*43a90889SApple OSS Distributions  * Chek that using EV_ADD and EV_TRIGGER on a EV_USER actually trigger the event just added.
11*43a90889SApple OSS Distributions  *
12*43a90889SApple OSS Distributions  */
13*43a90889SApple OSS Distributions 
14*43a90889SApple OSS Distributions T_DECL(kqueue_add_and_trigger_evfilt_user, "Add and trigger EVFILT_USER events with kevent ", T_META_TAG_VM_PREFERRED)
15*43a90889SApple OSS Distributions {
16*43a90889SApple OSS Distributions 	int kq_fd, ret;
17*43a90889SApple OSS Distributions 	struct kevent ret_kev;
18*43a90889SApple OSS Distributions 	const struct kevent kev = {
19*43a90889SApple OSS Distributions 		.ident = 1,
20*43a90889SApple OSS Distributions 		.filter = EVFILT_USER,
21*43a90889SApple OSS Distributions 		.flags = EV_ADD | EV_CLEAR,
22*43a90889SApple OSS Distributions 		.fflags = NOTE_TRIGGER,
23*43a90889SApple OSS Distributions 	};
24*43a90889SApple OSS Distributions 	const struct timespec timeout = {
25*43a90889SApple OSS Distributions 		.tv_sec = 1,
26*43a90889SApple OSS Distributions 		.tv_nsec = 0,
27*43a90889SApple OSS Distributions 	};
28*43a90889SApple OSS Distributions 
29*43a90889SApple OSS Distributions 	T_ASSERT_POSIX_SUCCESS((kq_fd = kqueue()), NULL);
30*43a90889SApple OSS Distributions 	ret = kevent(kq_fd, &kev, 1, &ret_kev, 1, &timeout);
31*43a90889SApple OSS Distributions 
32*43a90889SApple OSS Distributions 	T_ASSERT_POSIX_SUCCESS(ret, "kevent");
33*43a90889SApple OSS Distributions 
34*43a90889SApple OSS Distributions 	T_ASSERT_EQ(ret, 1, "kevent with add and trigger, ret");
35*43a90889SApple OSS Distributions 	T_ASSERT_EQ(ret_kev.ident, 1, "kevent with add and trigger, ident");
36*43a90889SApple OSS Distributions 	T_ASSERT_EQ(ret_kev.filter, EVFILT_USER, "kevent with add and trigger, filter");
37*43a90889SApple OSS Distributions }
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