parallel\Events::poll
(0.9.0)
parallel\Events::poll — Polling
说明
public parallel\Events::poll
( void
) : ?Event
Shall poll for the next event
返回值
Should there be no targets remaining, null shall be returned
Should this be a non-blocking loop, and blocking would occur, null shall be returned
Otherwise, the parallel\Events\Event returned describes the event.
Exceptions
Warning
Shall throw \parallel\Events\Error\Timeout if timeout is used and reached.