reactphp-input-stream/examples/basic_example_classes.php

47 lines
896 B
PHP

<?php
use JoopSchilder\React\Stream\NonBlockingInput\NonBlockingInputInterface;
use JoopSchilder\React\Stream\NonBlockingInput\PayloadInterface;
final class DemoEmptyPayload implements PayloadInterface
{
}
final class DemoNonBlockingInput implements NonBlockingInputInterface
{
private const DATA_AVAILABLE_INTERVAL_S = 1.0;
private const ERROR_AFTER_S = 4.0;
private float $lastEmission = 0;
private float $initialEmission = 0;
public function open(): void
{
$this->initialEmission = microtime(true);
}
public function select(): ?PayloadInterface
{
$now = microtime(true);
if ($now - $this->initialEmission > self::ERROR_AFTER_S) {
throw new Exception('Oh no!');
}
if ($now - $this->lastEmission > self::DATA_AVAILABLE_INTERVAL_S) {
$this->lastEmission = $now;
return new DemoEmptyPayload();
}
return null;
}
public function close(): void
{
}
}