parallel\Events::pollPolling 説明
public parallel\Events\Eventnull parallel\Events::poll()
Shall poll for the next event 戻り値
Should there be no targets remaining,
Should this be a non-blocking loop, and blocking would occur, Otherwise, the parallel\Events\Event returned describes the event. Exceptions警告
Shall throw parallel\Events\Error\Timeout if timeout is used and reached. |