Initial commit

examples/basic_example.php

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+<?php
+
+use JoopSchilder\React\Stream\NonBlockingInput\ReadableNonBlockingInputStream;
+use React\EventLoop\Factory;
+
+require_once __DIR__ . '/../vendor/autoload.php';
+require_once __DIR__ . '/basic_example_classes.php';
+
+/**
+ * The input will have data available every second.
+ * After 4 seconds have passed, it will generate an error.
+ */
+$input = new DemoNonBlockingInput();
+
+$loop = Factory::create();
+$stream = new ReadableNonBlockingInputStream($input, $loop);
+$stream->on('data', fn() => print('m'));
+$stream->on('error', fn() => print('e'));
+$stream->on('close', fn() => print('c'));
+$loop->addPeriodicTimer(0.2, fn() => print('.'));
+$loop->run();
+

examples/basic_example_classes.php

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+<?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
+	{
+	}
+
+}