2 * cc evfilt_user.c -pthread -I/usr/src/sys/ -o /tmp/evfilt_user
12 static void *domaster(void *arg);
13 static void *doslave(void *arg);
16 main(int ac, char **avj)
25 EV_SET(&kev, 1, EVFILT_USER, EV_ADD|EV_CLEAR, 0, 0, 0);
26 r = kevent(fd, &kev, 1, NULL, 0, NULL);
27 printf("r = %d\n", r);
28 pthread_create(&td1, NULL, domaster, (void *)(intptr_t)fd);
30 pthread_create(&td2, NULL, doslave, (void *)(intptr_t)fd);
31 pthread_join(td1, NULL);
32 pthread_join(td2, NULL);
39 int fd = (int)(intptr_t)arg;
42 printf("master running\n");
44 EV_SET(&kev, 1, EVFILT_USER, 0, NOTE_TRIGGER, 0, 0);
45 r = kevent(fd, &kev, 1, NULL, 0, NULL);
46 printf("issued trigger %d\n", r);
57 int fd = (int)(intptr_t)arg;
60 printf("slave running\n");
62 r = kevent(fd, NULL, 0, &kev, 1, NULL);
63 printf("received %d\n", r);
65 EV_SET(&kev, 1, EVFILT_USER, EV_CLEAR, 0, 0, 0);
66 r = kevent(fd, &kev, 1, NULL, 0, NULL);