Beispiel #1
0
int
epoll_dispatch(struct event_base *base, void *arg, struct timeval *tv)
{
	struct epollop *epollop = arg;
	struct epoll_event *events = epollop->events;
	struct evepoll *evep;
	int i, res, timeout;

	if (evsignal_deliver(&epollop->evsigmask) == -1)
		return (-1);

	timeout = tv->tv_sec * 1000 + (tv->tv_usec + 999) / 1000;

	benchmark_stop_sample();

	event_mutex_unlock(base);
	res = epoll_wait(epollop->epfd, events, epollop->nevents, timeout);
	event_mutex_lock(base);

	benchmark_start_sample();

	if (evsignal_recalc(&epollop->evsigmask) == -1)
		return (-1);

	if (res == -1) {
		if (errno != EINTR) {
			event_warn("epoll_wait");
			return (-1);
		}

		evsignal_process();
		return (0);
	} else if (evsignal_caught)
		evsignal_process();

	event_debug(("%s: epoll_wait reports %d", __func__, res));

	for (i = 0; i < res; i++) {
		int which = 0;
		int what = events[i].events;
		struct event *evread = NULL, *evwrite = NULL;

		evep = (struct evepoll *)events[i].data.ptr;
   
                if (what & EPOLLHUP)
                        what |= EPOLLIN | EPOLLOUT;
                else if (what & EPOLLERR)
                        what |= EPOLLIN | EPOLLOUT;

		if (what & EPOLLIN) {
			evread = evep->evread;
			which |= EV_READ;
		}

		if (what & EPOLLOUT) {
			evwrite = evep->evwrite;
			which |= EV_WRITE;
		}

		if (!which)
			continue;

		if (evread != NULL && !(evread->ev_events & EV_PERSIST))
			event_del(evread);
		if (evwrite != NULL && evwrite != evread &&
		    !(evwrite->ev_events & EV_PERSIST))
			event_del(evwrite);

		if (evread != NULL)
			event_active(evread, EV_READ, 1);
		if (evwrite != NULL)
			event_active(evwrite, EV_WRITE, 1);
	}

	return (0);
}
Beispiel #2
0
int
epoll_dispatch(void *arg, struct timeval *tv)
{
	struct epollop *epollop = arg;
	struct epoll_event *events = epollop->events;
	struct evepoll *evep;
	struct event *ev;
	int i, res, timeout;

	if (evsignal_deliver(&epollop->evsigmask) == -1)
		return (-1);

	timeout = tv->tv_sec * 1000 + tv->tv_usec / 1000;
	res = epoll_wait(epollop->epfd, events, epollop->nevents, timeout);

	if (evsignal_recalc(&epollop->evsigmask) == -1)
		return (-1);

	if (res == -1) {
		if (errno != EINTR) {
			log_error("epoll_wait");
			return (-1);
		}

		evsignal_process();
		return (0);
	} else if (evsignal_caught)
		evsignal_process();

	LOG_DBG((LOG_MISC, 80, "%s: epoll_wait reports %d", __func__, res));

	for (i = 0; i < res; i++) {
		int which = 0, what;

		evep = (struct evepoll *)events[i].data.ptr;
		what = events[i].events;
		if (what & EPOLLIN) {
			which |= EV_READ;
		}

		if (what & EPOLLOUT) {
			which |= EV_WRITE;
		}

		if (!which)
			continue;

		if (which & EV_READ) {
			ev = evep->evread;
			if (!(ev->ev_events & EV_PERSIST))
				event_del(ev);
			event_active(ev, EV_READ, 1);
		}
		if (which & EV_WRITE) {
			ev = evep->evwrite;
			if (!(ev->ev_events & EV_PERSIST))
				event_del(ev);
			event_active(ev, EV_WRITE, 1);
		}
	}

	return (0);
}
int
devpoll_dispatch(struct event_base *base, void *arg, struct timeval *tv)
{
	struct devpollop *devpollop = arg;
	struct pollfd *events = devpollop->events;
	struct dvpoll dvp;
	struct evdevpoll *evdp;
	int i, res, timeout;

	if (evsignal_deliver(&devpollop->evsigmask) == -1)
		return (-1);

	if (devpollop->nchanges)
		devpoll_commit(devpollop);

	timeout = tv->tv_sec * 1000 + (tv->tv_usec + 999) / 1000;

	dvp.dp_fds = devpollop->events;
	dvp.dp_nfds = devpollop->nevents;
	dvp.dp_timeout = timeout;

	res = ioctl(devpollop->dpfd, DP_POLL, &dvp);

	if (evsignal_recalc(&devpollop->evsigmask) == -1)
		return (-1);

	if (res == -1) {
		if (errno != EINTR) {
			event_warn("ioctl: DP_POLL");
			return (-1);
		}

		evsignal_process();
		return (0);
	} else if (evsignal_caught)
		evsignal_process();

	event_debug(("%s: devpoll_wait reports %d", __func__, res));

	for (i = 0; i < res; i++) {
		int which = 0;
		int what = events[i].revents;
		struct event *evread = NULL, *evwrite = NULL;

		assert(events[i].fd < devpollop->nfds);
		evdp = &devpollop->fds[events[i].fd];
   
                if (what & POLLHUP)
                        what |= POLLIN | POLLOUT;
                else if (what & POLLERR)
                        what |= POLLIN | POLLOUT;

		if (what & POLLIN) {
			evread = evdp->evread;
			which |= EV_READ;
		}

		if (what & POLLOUT) {
			evwrite = evdp->evwrite;
			which |= EV_WRITE;
		}

		if (!which)
			continue;

		if (evread != NULL && !(evread->ev_events & EV_PERSIST))
			event_del(evread);
		if (evwrite != NULL && evwrite != evread &&
		    !(evwrite->ev_events & EV_PERSIST))
			event_del(evwrite);

		if (evread != NULL)
			event_active(evread, EV_READ, 1);
		if (evwrite != NULL)
			event_active(evwrite, EV_WRITE, 1);
	}

	return (0);
}