* @param t a long.
* @param listener a {@link iqq.im.QQActionListener} object.
* @return a {@link iqq.im.event.QQActionFuture} object.
*/
public QQActionFuture poll(String sid, long t, QQActionListener listener) {
return pushHttpAction(new PollEmailAction(sid, t, getContext(),
listener));
}