1 /*	$OpenBSD: kevent.c,v 1.1 2011/09/13 23:50:17 fgsch Exp $	*/
2 /*
3  * Federico G. Schwindt <fgsch@openbsd.org>, 2011. Public Domain.
4  */
5 #include <sys/types.h>
6 #include <sys/event.h>
7 #include <sys/time.h>
8 #include <pthread.h>
9 #include <signal.h>
10 #include <unistd.h>
11 #include "test.h"
12 
13 volatile sig_atomic_t hits = 0;
14 
15 void
16 handler(int sig)
17 {
18 	hits++;
19 }
20 
21 void *
22 thr_kevent(void *arg)
23 {
24 	struct kevent ev;
25 	struct timespec ts = { 10, 0 };
26 	int kq;
27 
28 	CHECKe(kq = kqueue());
29 	ASSERT(kevent(kq, NULL, 0, &ev, 1, &ts) == -1);
30 	return ((caddr_t)NULL + errno);
31 }
32 
33 int
34 main(int argc, char **argv)
35 {
36 	struct sigaction sa;
37 	pthread_t tid;
38 	void *retval;
39 
40 	bzero(&sa, sizeof(sa));
41 	sa.sa_handler = handler;
42 	sa.sa_flags = SA_RESTART;
43 	CHECKe(sigaction(SIGUSR1, &sa, NULL));
44 
45 	CHECKr(pthread_create(&tid, NULL, thr_kevent, NULL));
46 	sleep(2);
47 
48 	/* Should interrupt it. */
49 	CHECKr(pthread_kill(tid, SIGUSR1));
50 	sleep(1);
51 
52 	CHECKr(pthread_join(tid, &retval));
53 	ASSERT(retval == (void *)EINTR);
54 	ASSERT(hits == 1);
55 	SUCCEED;
56 }
57