parallel\Events::poll

(0.9.0)

parallel\Events::poll — Polling

public function parallel\Events::poll(): ?parallel\Events\Event

Shall poll for the next event

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.

警告

Shall throw parallel\Events\Error\Timeout if timeout is used and reached.