Initial commit
This commit is contained in:
commit
6a7ea39f5c
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/.idea/
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/vendor/
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{
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"name": "joopschilder/reactphp-input-stream",
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"description": "Wraps a non-blocking input to behave like a stream so it can be used in a ReactPHP EventLoop",
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"type": "library",
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"license": "MIT",
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"authors": [
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{
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"name": "Joop Schilder",
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"email": "jnmschilder@protonmail.com"
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}
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],
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"require": {
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"react/event-loop": "^1.1",
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"react/stream": "^1.1"
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},
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"autoload": {
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"psr-4": {
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"JoopSchilder\\React\\Stream\\NonBlockingInput\\": "src"
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}
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}
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}
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{
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"_readme": [
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"This file locks the dependencies of your project to a known state",
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"Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
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"This file is @generated automatically"
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],
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"content-hash": "8cb0549e866a693d6b61e7e7f9a75862",
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"packages": [
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{
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"name": "evenement/evenement",
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"version": "v3.0.1",
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"source": {
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"type": "git",
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"url": "https://github.com/igorw/evenement.git",
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"reference": "531bfb9d15f8aa57454f5f0285b18bec903b8fb7"
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},
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"dist": {
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"type": "zip",
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"url": "https://api.github.com/repos/igorw/evenement/zipball/531bfb9d15f8aa57454f5f0285b18bec903b8fb7",
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"reference": "531bfb9d15f8aa57454f5f0285b18bec903b8fb7",
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"shasum": ""
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},
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"require": {
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"php": ">=7.0"
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},
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"require-dev": {
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"phpunit/phpunit": "^6.0"
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},
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"type": "library",
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"autoload": {
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"psr-0": {
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"Evenement": "src"
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}
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},
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"notification-url": "https://packagist.org/downloads/",
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"license": [
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"MIT"
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],
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"authors": [
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{
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"name": "Igor Wiedler",
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"email": "igor@wiedler.ch"
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}
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],
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"description": "Événement is a very simple event dispatching library for PHP",
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"keywords": [
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"event-dispatcher",
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"event-emitter"
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],
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"time": "2017-07-23T21:35:13+00:00"
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},
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{
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"name": "react/event-loop",
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"version": "v1.1.1",
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"source": {
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"type": "git",
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"url": "https://github.com/reactphp/event-loop.git",
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"reference": "6d24de090cd59cfc830263cfba965be77b563c13"
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},
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"dist": {
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"type": "zip",
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"url": "https://api.github.com/repos/reactphp/event-loop/zipball/6d24de090cd59cfc830263cfba965be77b563c13",
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"reference": "6d24de090cd59cfc830263cfba965be77b563c13",
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"shasum": ""
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},
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"require": {
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"php": ">=5.3.0"
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},
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"require-dev": {
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"phpunit/phpunit": "^7.0 || ^6.4 || ^5.7 || ^4.8.35"
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},
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"suggest": {
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"ext-event": "~1.0 for ExtEventLoop",
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"ext-pcntl": "For signal handling support when using the StreamSelectLoop",
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"ext-uv": "* for ExtUvLoop"
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},
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"type": "library",
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"autoload": {
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"psr-4": {
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"React\\EventLoop\\": "src"
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}
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},
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"notification-url": "https://packagist.org/downloads/",
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"license": [
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"MIT"
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],
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"description": "ReactPHP's core reactor event loop that libraries can use for evented I/O.",
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"keywords": [
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"asynchronous",
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"event-loop"
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],
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"time": "2020-01-01T18:39:52+00:00"
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},
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{
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"name": "react/stream",
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"version": "v1.1.0",
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"source": {
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"type": "git",
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"url": "https://github.com/reactphp/stream.git",
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"reference": "50426855f7a77ddf43b9266c22320df5bf6c6ce6"
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},
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"dist": {
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"type": "zip",
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"url": "https://api.github.com/repos/reactphp/stream/zipball/50426855f7a77ddf43b9266c22320df5bf6c6ce6",
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"reference": "50426855f7a77ddf43b9266c22320df5bf6c6ce6",
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"shasum": ""
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},
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"require": {
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"evenement/evenement": "^3.0 || ^2.0 || ^1.0",
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"php": ">=5.3.8",
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"react/event-loop": "^1.0 || ^0.5 || ^0.4 || ^0.3.5"
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},
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"require-dev": {
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"clue/stream-filter": "~1.2",
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"phpunit/phpunit": "^6.4 || ^5.7 || ^4.8.35"
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},
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"type": "library",
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"autoload": {
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"psr-4": {
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"React\\Stream\\": "src"
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}
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},
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"notification-url": "https://packagist.org/downloads/",
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"license": [
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"MIT"
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],
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"description": "Event-driven readable and writable streams for non-blocking I/O in ReactPHP",
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"keywords": [
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"event-driven",
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"io",
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"non-blocking",
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"pipe",
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"reactphp",
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"readable",
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"stream",
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"writable"
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],
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"time": "2019-01-01T16:15:09+00:00"
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}
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],
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"packages-dev": [],
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"aliases": [],
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"minimum-stability": "stable",
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"stability-flags": [],
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"prefer-stable": false,
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"prefer-lowest": false,
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"platform": [],
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"platform-dev": []
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}
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<?php
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use JoopSchilder\React\Stream\NonBlockingInput\ReadableNonBlockingInputStream;
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use React\EventLoop\Factory;
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require_once __DIR__ . '/../vendor/autoload.php';
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require_once __DIR__ . '/basic_example_classes.php';
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/**
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* The input will have data available every second.
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* After 4 seconds have passed, it will generate an error.
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*/
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$input = new DemoNonBlockingInput();
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$loop = Factory::create();
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$stream = new ReadableNonBlockingInputStream($input, $loop);
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$stream->on('data', fn() => print('m'));
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$stream->on('error', fn() => print('e'));
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$stream->on('close', fn() => print('c'));
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$loop->addPeriodicTimer(0.2, fn() => print('.'));
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$loop->run();
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<?php
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use JoopSchilder\React\Stream\NonBlockingInput\NonBlockingInputInterface;
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use JoopSchilder\React\Stream\NonBlockingInput\PayloadInterface;
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final class DemoEmptyPayload implements PayloadInterface
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{
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}
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final class DemoNonBlockingInput implements NonBlockingInputInterface
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{
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private const DATA_AVAILABLE_INTERVAL_S = 1.0;
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private const ERROR_AFTER_S = 4.0;
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private float $lastEmission = 0;
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private float $initialEmission = 0;
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public function open(): void
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{
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$this->initialEmission = microtime(true);
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}
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public function select(): ?PayloadInterface
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{
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$now = microtime(true);
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if ($now - $this->initialEmission > self::ERROR_AFTER_S) {
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throw new Exception('Oh no!');
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}
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if ($now - $this->lastEmission > self::DATA_AVAILABLE_INTERVAL_S) {
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$this->lastEmission = $now;
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return new DemoEmptyPayload();
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}
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return null;
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}
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public function close(): void
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{
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}
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}
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<?php
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namespace JoopSchilder\React\Stream\NonBlockingInput;
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interface NonBlockingInputInterface
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{
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function open(): void;
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function select(): ?PayloadInterface;
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function close(): void;
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}
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<?php
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namespace JoopSchilder\React\Stream\NonBlockingInput;
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/**
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* Marker interface.
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*/
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interface PayloadInterface
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{
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}
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<?php
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namespace JoopSchilder\React\Stream\NonBlockingInput;
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use Evenement\EventEmitter;
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use JoopSchilder\React\Stream\NonBlockingInput\ValueObject\PollingInterval;
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use React\EventLoop\LoopInterface;
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use React\EventLoop\TimerInterface;
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use React\Stream\ReadableResourceStream;
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use React\Stream\ReadableStreamInterface;
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use React\Stream\Util;
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use React\Stream\WritableStreamInterface;
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use RuntimeException;
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use Throwable;
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/**
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* @see ReadableStreamInterface
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* @see ReadableResourceStream
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*/
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final class ReadableNonBlockingInputStream extends EventEmitter implements ReadableStreamInterface
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{
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private NonBlockingInputInterface $input;
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private LoopInterface $loop;
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private PollingInterval $interval;
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private ?TimerInterface $periodicTimer = null;
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private bool $closed = false;
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private bool $listening = false;
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/**
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* @see ReadableStreamInterface
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* @see ReadableResourceStream for an example
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*/
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public function __construct(NonBlockingInputInterface $input, LoopInterface $loop, ?PollingInterval $interval = null)
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{
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$this->input = $input;
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$this->loop = $loop;
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$this->interval = $interval ?? new PollingInterval();
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$this->resume();
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}
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public function isReadable()
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{
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return !$this->closed;
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}
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/**
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* @see ReadableResourceStream::pause()
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* Pause consumption of the AMQP queue but do not mark the stream as closed
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*/
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public function pause()
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{
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if (!$this->listening) {
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return;
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}
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$this->input->close();
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$this->loop->cancelTimer($this->periodicTimer);
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$this->listening = false;
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}
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/**
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* @see ReadableResourceStream::resume()
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* Register the consumer with the broker and add consumer again
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*/
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public function resume()
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{
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if ($this->listening || $this->closed) {
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return;
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}
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$this->input->open();
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$this->periodicTimer = $this->loop->addPeriodicTimer(
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$this->interval->getInterval(),
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function () {
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if ($data = $this->read()) {
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$this->emit('data', [$data]);
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}
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}
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);
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$this->listening = true;
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}
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/**
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* @param WritableStreamInterface $dest
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* @param array $options
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* @return WritableStreamInterface
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* @see ReadableResourceStream::pipe()
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*/
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public function pipe(WritableStreamInterface $dest, array $options = [])
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{
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return Util::pipe($this, $dest, $options);
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}
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/**
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* @see ReadableResourceStream::close()
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*/
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public function close()
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{
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if ($this->closed) {
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return;
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}
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$this->closed = true;
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$this->emit('close');
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$this->pause();
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$this->removeAllListeners();
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$this->input->close();
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}
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private function read(): ?PayloadInterface
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{
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try {
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return $this->input->select();
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} catch (Throwable $t) {
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$this->emit('error', [
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new RuntimeException('Unable to read data from input: ' . $t->getMessage(), 0, $t),
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]);
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$this->close();
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}
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return null;
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}
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}
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@ -0,0 +1,29 @@
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<?php
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namespace JoopSchilder\React\Stream\NonBlockingInput\ValueObject;
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use InvalidArgumentException;
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final class PollingInterval
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||||
{
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private const DEFAULT_INTERVAL = 0.05;
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private float $interval;
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||||
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||||
public function __construct(float $interval = self::DEFAULT_INTERVAL)
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||||
{
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if ($interval < 0.0) {
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throw new InvalidArgumentException('Interval must be greater than 0');
|
||||
}
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||||
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$this->interval = $interval;
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}
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||||
public function getInterval(): float
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||||
{
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return $this->interval;
|
||||
}
|
||||
|
||||
}
|
||||
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