![<?php
require __DIR__ . '/vendor/autoload.php';
$loop = new ReactEventLoopStreamSelectLoop;
$socket = new ReactSocketServer($loop);
$server = new ReactHttpServer($socket);
$server->on('request', function ($req, $res) {
$res->writeHead(200, ['Content-Type' => 'text/plain']);
$res->end("Hello Worldn");
});
$socket->listen(1337);
echo "Server running at http://127.0.0.1:1337/", PHP_EOL;
$loop->run();](https://image.slidesharecdn.com/reactor-pattern-and-react-120914222456-phpapp01/85/Reactor-Pattern-and-React-20-320.jpg)
Reactor Pattern and React
- 1. Reactor Pattern and React @yuya_takeyama
- 2. How to parallelize PHP scripts? どうやって PHP スクリプトを並列化させるか
- 3. There is more than one way to do it! やり方はいろいろある
- 4. exec() foreach (range(1, 10) as $i) { exec("php script.php 1>&2 &"); } echo "Hi", PHP_EOL;
- 5. pcntl_fork() echo getmypid() . ": I'm parent.", PHP_EOL; foreach (range(1, 10) as $i) { $pid = pcntl_fork(); if ($pid) { echo "{$pid}: I'm child.", PHP_EOL; exit; } pcntl_wait($status); }
- 8. n() 0) _op e ea m, p roc $s tr ing( lo ck et _b am _s st re
- 9. n() 0) _op e ea m, p roc $s tr ing( lo ck et _b am _s st re strea m_select()
- 10. n() 0) _op e ea m, p roc $s tr ing( lo ck et _b am _s popen() st re strea m_select()
- 11. n() 0) _op e ea m, p roc $s tr ing( lo ck et _b am _s popen() st re strea m_select() sys tem()
- 12. n() 0) _op e ea m, p roc $s tr ing( ck t() _b lo _s et c am popen() ele st re i_s strea m_select() ult l_m cur sys tem()
- 13. n() 0) _op e ea m, p roc tr Thesen oc ki gare ( $s t() t_ bl very se COMPLEX! c m_ popen() ele re a st i_s strea m_select() ult l_m 複雑過ぎる cur sys tem()
- 17. What’s ?
- 18. •Event-driven • non-blocking I/O • with Pure PHP • Native extensions are also available for better performance
- 19. var http = require('http'); http.createServer(function (req, res) { res.writeHead(200, {'Content-Type': 'text/plain'}); res.end('Hello Worldn'); }).listen(1337, '127.0.0.1'); console.log('Server running at http://127.0.0.1:1337/');
- 20. <?php require __DIR__ . '/vendor/autoload.php'; $loop = new ReactEventLoopStreamSelectLoop; $socket = new ReactSocketServer($loop); $server = new ReactHttpServer($socket); $server->on('request', function ($req, $res) { $res->writeHead(200, ['Content-Type' => 'text/plain']); $res->end("Hello Worldn"); }); $socket->listen(1337); echo "Server running at http://127.0.0.1:1337/", PHP_EOL; $loop->run();
- 21. How it works? どうやって動くのか
- 22. The Core of React ReactEventLoop
- 23. StreamSelectLoop
- 25. stream_set_blocking($stream, 0) •ストリームをブロックしない モードにする •I/O 待ちが発生しなくなる
- 26. stream_select() select(2) for PHP
- 27. $ man 2 select
- 30. Reactor 複数のストリームを秒間何度も stream_select() で監視し、準備ができたものか Pattern ら処理していくことで I/O 待 ちのムダを軽減
- 31. Components •Stream •Whois • Socket • ZMQ • Http • Predis/Async (Redis) • Dns • Ratchet (Web Socket)
- 32. Components •Stream •Whois • Socket • ZMQ • Http • Predis/Async (Redis) • Dns • Ratchet (Web Socket) ChildProcess?
- 33. Conclusion •Reactor パターンを使うと I/O処理を並列化/効率化できる • React を使うと簡単に Reactor パターンの利点を享受できる