void ev_feed_event (EV_P_ void *w, int revents);
void ev_feed_fd_event (EV_P_ int fd, int revents);
void ev_feed_signal_event (EV_P_ int signum);
+void ev_invoke (EV_P_ void *w, int revents);
int ev_clear_pending (EV_P_ void *w);
void ev_io_start (EV_P_ ev_io *w);