Getting Started with Ruby and WebSockets
Note: Our friends at The Hybrid Group wrote this great post on how to use WebSockets for us. Thanks guys! In this post, we’ll be covering an introduction to WebSockets, and implementing a basic WebSockets chat app using EM-WebSocket. WebSockets is one of the cooler new features in the HTML5 spec, and allows clients and servers to communicate without using AJAX requests, or HTTP long-polling(Comet)
What Are Events, Why Might You Care, and How Can EventMachine Help?
You have likely heard of event based/driven programming, which you may also see referred to as “evented†programming. It has been around and in use for a long time, but it is seeing a growing swell of interest in recent years. Perl has had POE for years. Likewise, Python has had Twisted for quite a few years. Graphics toolkits such as GTK use event loops to respond to user interface events. Javasc
橋本商会 » Herokuã®Sinatraã«ãƒãƒƒã‚¯ã‚°ãƒ©ã‚¦ãƒ³ãƒ‰ãƒ¯ãƒ¼ã‚«ãƒ¼ã‚’è©°ã‚込んã§ç¯€ç´„
Webアプリã¨åŒã˜ãƒ—ãƒã‚»ã‚¹ã«worker入れã¦ãŠé‡‘ãŒç¯€ç´„ã§ãる。 Webアプリ㯠“リクエストæ¥ã‚‹â†’サーãƒãƒ¼ã§å‡¦ç†â†’レスãƒãƒ³ã‚¹è¿”ã™â€ ã¨ã„ã†ã®ã‚’ç¹°ã‚Šè¿”ã™ã‚ã‘ã ãŒã€ã‚µãƒ¼ãƒãƒ¼ã§ã®å‡¦ç†ã«æ™‚é–“ãŒã‹ã‹ã‚‹å ´åˆã«ãã“を別ã®ãƒ—ãƒã‚»ã‚¹ã«ä»»ã›ã¦ã€å…ˆã«ãƒ¬ã‚¹ãƒãƒ³ã‚¹ã‚’è¿”ã—ã¦ãŠã„ã¦ã€ã‚ã¨ã§çµæžœã¯å–ã‚Šã«æ¥ã¦ã‚ˆã€ã¨ã„ã†å®Ÿè£…ã‚’ã™ã‚‹äº‹ãŒã‚る。 時間ãŒã‹ã‹ã‚‹å‡¦ç†ã¯2ã¤ã«å¤§åˆ¥ã§ãる。 動画をエンコードã™ã‚‹ã¨ã‹ã€‚CPUè² è·ãŒé«˜ãã¦æ™‚é–“ãŒã‹ã‹ã‚‹ã®ã§Webサーãƒãƒ¼ã¨ã¯åˆ¥ã®å ´æ‰€ã§å‹•ã‹ã—ãŸã„ Twitter APIã‚’10回ãらã„使ã£ãŸçµæžœã‚’ã¾ã¨ã‚ã¦è¿”ã™ã¨ã‹ã€‚CPUè² è·ã¯ä½Žã„ã‘ã©IOå¾…ã¡ãŒé•·ã„ 2ã®æ–¹ã«ã¤ã„ã¦ã€Herokuã®Ruby環境ã§å®‰ã上ã’る方法をã¾ã¨ã‚る。 手法 Herokuã®cedarスタックã§Ruby使ã†æ™‚ã¯webサーãƒãƒ¼ã¨ã—ã¦ThinãŒèµ·å‹•ã™ã‚‹ã€‚ Thinã¯EventMachineã®ä¸ã§å‹•ã„ã¦ã‚‹ã®ã§ã€EM::deferç‰ãŒä½¿ãˆ
Get it done. One event at a time.
Get it done. One event at a time. How I learned to stop worrying and love EventMachine. 1Friday, February 27, 2009 © 2009 AideRSS. Who Am I • Dan Sinclair (dan@aiderss.com) • AideRSS code monkey 2Friday, February 27, 2009 © 2009 AideRSS. Overview • What • Why • How • Gotchas 3Friday, February 27, 2009 © 2009 AideRSS. What is EventMachine • Reactor pattern • Protocol implementations • Thread pool
Consuming the Twitter Streaming API
Consuming the Twitter Streaming API eventedio eventmachine twitter Fri Mar 19 11:01:54 -0700 2010 If you’ve been using polling to track Twitter search terms (totally random example), you may have wondered if there is a more efficient and reliable method. The Twitter streaming API is a potential solution. Try out the sample stream with curl: $ curl http://stream.twitter.com/1/statuses/sample.json -
Websockets using Ruby Eventmachine
HTML5 is loaded with a lot of features that will make the lives of developers much easier and the experience for end users more pleasant as well. Lets take a look one of the new features: WebSockets. We'll make the magic happen with Ruby's EventMachine gem. Mash Some Keys! If you're in a browser that supports WebSockets (Chrome, Safari, Firefox trunk), go ahead and type a bit. Your keystrokes will
TCP Socketサーãƒãƒ¼ã¨ã‚¯ãƒ©ã‚¤ã‚¢ãƒ³ãƒˆ - 橋本詳解
両方EventMachine::Connectionã§æ›¸ã serverã¨clientã©ã¡ã‚‰ãŒå…ˆã«èµ·å‹•ã—ã¦ã‚‚良ㄠclientã¯serverã‹ã‚‰åˆ‡æ–ã•ã‚ŒãŸã‚‰è‡ªå‹•å†æŽ¥ç¶šã™ã‚‹ unbindイベント内ã§reconnectã—ãŸã‚‰ã§ã㟠clientã¯é©å½“ãªæ–‡å—列をé€ä¿¡ã—ã¦ã€1秒sleepã™ã‚‹ã€‚ serverã¯clientã‹ã‚‰å—ä¿¡ã—ãŸæ–‡å—列をã€å°‘ã—åŠ å·¥ã—ã¦echoã™ã‚‹ ä»–ã®clientã«ã¯é€ã‚‰ãªã„ serverã¯EM::Channelを使ã£ã¦clientãŸã¡ã‚’管ç†ã™ã‚‹ serverã¯ã€æ–°ã—ã„clientãŒæŽ¥ç¶šã—ã¦ããŸäº‹ã‚’å…¨clientã«é€šçŸ¥ã™ã‚‹ serverã¯5秒毎ã«å…¨clientã«æ™‚刻をé€ä¿¡ã™ã‚‹ server.rb #!/usr/bin/env ruby require 'rubygems' require 'eventmachine' HOST = '0.0.0.0' PORT = 5000 @
EventMachine, How Does It Work?
At this year’s Scottish Ruby Conference, I gave a talk about EventMachine, slides are available. Amidst the hype around Node.js it’s too easy to forget that Ruby has had evented I/O libraries for years. EventMachine, libebb, rev, cool.io, to name a few. As a general introduction I recommend reading Dan Kegel’s article on the C10K problem, the problem of handling 10000 server connections on a singl
ã€ç¿»è¨³ã€‘EventMachine入門
dan sinclairã•ã‚“ã®EventMachineã®å…¥é–€è¨˜äº‹ï¼ˆPDF）を翻訳ã—ã¾ã—ãŸã€‚ 原文ã¯ã“ã“ã‹ã‚‰ãƒ€ã‚¦ãƒ³ãƒãƒ¼ãƒ‰å¯èƒ½ã§ã™ï¼š http://everburning.com/news/eventmachine-introductions/ （翻訳ã®å…¬é–‹ã¨ç”»åƒã®åˆ©ç”¨ã¯æœ¬äººã‚ˆã‚Šè¨±è«¾æ¸ˆã¿ã§ã™ï¼‰ 翻訳・内容ã®é–“é•ã„ç‰ãŒã‚ã‚Œã°ãƒ–ãƒã‚°ã‚³ãƒ¡ãƒ³ãƒˆã‚„Twitterãªã©ã§é 慮無ãã”指摘ãã ã•ã„。 EventMachine入門 Introduction ã†ã‚“ã€ã“ã‚Œã‹ã‚‰ä½•ã‚’å¦ã¶ã“ã¨ã«ãªã‚‹ã®ã‹ã€ã“ã®å°Žå…¥ã®ãã ã‚ŠãŒã‚¹ã‚¿ãƒ¼ãƒˆåœ°ç‚¹ã¨ã—ã¦å½¹ã«ç«‹ã¤ã¨æ€ã†ã€‚EventMachine ã¨ã¯ä½•ã ã‚ã†ã€‚ãã—ã¦ãã‚Œã¯ç§ãŸã¡ã®ãŸã‚ã«ä½•ã‚’ã—ã¦ãれるã®ã ã‚ã†ã€‚ã•ã¦ã€æœ€åˆã®éƒ¨åˆ†ã¯ç°¡å˜ã ã。EventMachine 㯠Reactor パターン(*1)ã®é«˜æ€§èƒ½ãªå®Ÿè£…ã•ã€‚ ã™ã’ãˆã€ã„ã‚„ã€ã¡ã‚‡ã£ã¨å¾…ã¦ã€Reactor パターンã£ã¦ä½•ã ？　Wiki
I/Oå¾…ã¡ã‚’ç·©å’Œã•ã›ã‚‹ã®ã«åŠ¹æžœçš„㪠Reactor パターン - I am bad at math
クラウド上ã§å‹•ä½œã™ã‚‹ãƒ—ãƒã‚°ãƒ©ãƒ を組んã§ã„ãéš›ã€ã‚¹ã‚±ãƒ¼ãƒ«ã™ã‚‹ã“ã¨ã‚’ç‹™ã£ã¦å¤šãã®ãƒã‚¸ãƒƒã‚¯ãŒãƒ‡ã‚«ãƒƒãƒ—リングã•ã‚Œã€è¤‡æ•°ã®ã‚µãƒ¼ãƒã«åˆ†æ•£ã•ã‚Œã‚‹ã“ã¨ã¨æ€ã„ã¾ã™ãŒã€ãã“ã§é¡•è‘—ã«ãªã£ã¦ãるボトルãƒãƒƒã‚¯ã®ä¸€ã¤ãŒãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ãªã©ã®I/Oå¾…ã¡ã§ã™ã€‚ ã“ã®I/Oå¾…ã¡ã‚’減少ã•ã›ã‚‹ã®ã«åŠ¹æžœçš„ãªã®ãŒ Reactor パターン。 ã“ã®ãƒ‘ターン自体ã¯ç‰¹ã«ç›®æ–°ã—ã„ã‚‚ã®ã§ã‚‚ãªã„ã®ã§ã™ãŒã€è¿‘å¹´ã®ã‚¯ãƒ©ã‚¦ãƒ‰ãƒ–ームã§å†ã³è„šå…‰ã‚’æµ´ã³ãã†ãªã®ã§è‡ªåˆ†ã®å‚™å¿˜éŒ²ã‚‚ã‹ãã¦ç´¹ä»‹ã—ã¾ã™ã€‚ Reactor パターン http://en.wikipedia.org/wiki/Reactor_pattern ã“ã® Reactor パターンã¯ã©ã†ã„ã£ãŸå ´åˆã«ä½¿ç”¨ã™ã‚‹ã‹ã¨ã„ã†ã¨ 複数ã®I/Oå¾…ã¡ãŒæƒ³å®šã•ã‚Œã‚‹å ´åˆ ã¨ã„ã†ã®ãŒä»£è¡¨æ ¼ã®ã‚ˆã†ã§ã™ã€‚今回ã¯ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯I/Oを想定ã—ã¦ã„ã¾ã™ãŒã€ãƒ‡ãƒ¼ã‚¿ãƒ™ãƒ¼ã‚¹ã¸ã®å•ã„åˆã‚ã›ã«æ™‚é–“ãŒã‹ã‹ã‚‹éš›ã«ã‚‚有用ã¨ãªã‚Šã¾ã™ã€‚ 例ã¨ã—ã¦ã‚¯ãƒãƒ¼ãƒ©
橋本商会 » EventMachine::WebSocketã§ãƒãƒ£ãƒƒãƒˆã‚’作る
Ruby & WebSockets: TCP for the Browser – igvita.comã‚’å‚考ã«ã—ãŸã€‚ ã§ã㟠http://dev.shokai.org/test/ws/chat/ ソースコード https://github.com/shokai/ruby-websocket-test websocketãªã®ã§chromeã‹safariã‹iPhoneã§å‹•ãã‘ã©ã€Firefoxã¨IEã§ã¯å‹•ã‹ãªã„。 ■サーãƒãƒ¼ サーãƒãƒ¼ã¯rubyã®EventMachine::WebSocketを使ã£ãŸã€‚ ã¾ãšgemã§ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ«ã—ã¦ãŠã„㦠gem install em-websocket EM::runã®ä¸ã§EM::WebSocket.startã™ã‚‹ã ã‘。 1プãƒã‚»ã‚¹ã«è¤‡æ•°ã‚¯ãƒ©ã‚¤ã‚¢ãƒ³ãƒˆã¤ãªãŽã£ã±ãªã—ã«ã—ã¦ã€å…¨ã‚¯ãƒ©ã‚¤ã‚¢ãƒ³ãƒˆã«ã¾ã¨ã‚ã¦ãƒ¡ãƒƒã‚»ãƒ¼ã‚¸ã‚’é€ã‚‹ãŸã‚ã«EM::Channelを使ã£ãŸã€‚EM::W
Cramp - Asynchronous framework for the web
Cramp is a fully asynchronous realtime web application framework in Ruby. It is built on top of EventMachine and primarily designed for working with larger number of open connections and providing full-duplex bi-directional communication. Features Lightweight, minimal and able to handle thousands of open connections simultaneously Built in support for HTML5 technologies: WebSockets and Server-Sent
第29回　Reactorã§éžåŒæœŸå‡¦ç†ã‚’ã‚„ã£ã¦ã¿ã‚ˆã†ï¼ˆ1） | gihyo.jp
ã¯ã˜ã‚ã« Webサービスã®APIをコールã™ã‚‹ã‚ˆã†ãªã€ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ã‚’介ã—ãŸé€šä¿¡å‡¦ç†ã¯ã€ä»Šæ—¥ã§ã¯é »ç¹ã«è¡Œã‚ã‚Œã¦ã„ã¾ã™ã€‚ ãƒãƒ¼ã‚«ãƒ«ãƒžã‚·ãƒ³ã®ã¿ã§å®Œçµã™ã‚‹å‡¦ç†ã¨æ¯”ã¹ã‚‹ã¨ã€é€šä¿¡ãŒå¿…è¦ãªå‡¦ç†ã¯å¤šå¤§ãªæ™‚é–“ãŒå¿…è¦ã«ãªã‚Šã¾ã™ã€‚相手サーãƒã¸ã®æŽ¥ç¶šã€ç›¸æ‰‹ã‚µãƒ¼ãƒå´ã§ã®å‡¦ç†ã€ç›¸æ‰‹ã‚µãƒ¼ãƒã‹ã‚‰ã®å—ä¿¡ãªã©ã€ä½•ã‚‚ã™ã‚‹ã“ã¨ãªããŸã å¾…ã¤ã ã‘ã®æ™‚é–“ãŒå˜åœ¨ã—ã¾ã™ã€‚ ã“ã®ç„¡é§„ãªæ™‚é–“ã®é–“ã«ä»–ã®å‡¦ç†ãŒã§ãã‚‹ãªã‚‰ã°ã€ãƒˆãƒ¼ã‚¿ãƒ«ã®å‡¦ç†æ™‚間を大幅ã«çŸç¸®ã™ã‚‹ã“ã¨ãŒå¯èƒ½ã«ãªã‚Šã¾ã™ã€‚ã“れを実ç¾ã™ã‚‹ãŸã‚ã«ã‚¹ãƒ¬ãƒƒãƒ‰ãŒã‚ˆã使ã‚ã‚Œã¦ã„ã¾ã™ã€‚ã—ã‹ã—マルãƒã‚¹ãƒ¬ãƒƒãƒ‰ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°ã¯ã„ã‚ã„ã‚ã¨æ³¨æ„を払ã†ç‚¹ã‚‚多ãã€ä½¿ã„ã«ãã•ã‚’æ„Ÿã˜ã¦ã„る方も多ã„ã®ã§ã¯ãªã„ã§ã—ょã†ã‹ã€‚ 今回ã¯Reactorパターンã¨ã„ã†ã€ãƒžãƒ«ãƒã‚¹ãƒ¬ãƒƒãƒ‰ã¨ã¯é•ã£ãŸã‚¢ãƒ—ãƒãƒ¼ãƒã§éžåŒæœŸå‡¦ç†ã‚’実ç¾ã—ã¦ã¿ãŸã„ã¨æ€ã„ã¾ã™ã€‚ 複数ã®webサーãƒã‹ã‚‰HTMLæ–‡ç« ã‚’å–å¾—ã—ã¦ã¿ã‚‹ åŒæœŸå‡¦ç† ã²ã¨ã¾ãšéžåŒæœŸå‡¦ç†ã‚’忘れã¦ã€ã‚·ãƒ¼ã‚±
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» Ruby/EventMachineã«ã‚ˆã‚‹ã‚µãƒ¼ãƒã®ä¾‹: pylori*style
最近ã€Ruby/EventMachineã¨ã„ã†ãƒ©ã‚¤ãƒ–ライãŒãŠã‚‚ã—ã‚ãã¦è‰¯ã使ã£ã¦ã„ã¾ã™ã€‚EventMachineã¯ã€ã‚¤ãƒ™ãƒ³ãƒˆãƒ‰ãƒªãƒ–ンã§éžåŒæœŸI/O処ç†ã‚’è¡Œã†ãŸã‚ã®ãƒ©ã‚¤ãƒ–ラリã§ã€ä¸€éƒ¨ C++ ã§æ›¸ã‹ã‚Œã¦ã„ã¦é«˜é€Ÿå‹•ä½œã™ã‚‹ã®ãŒç‰¹å¾´ã§ã™ã€‚ EventMachine ã®ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ« rubygems を使ã†ã®ãŒç°¡å˜ã§ã™ã€‚ $ gem install eventmachine EventMachineã®ä½¿ã„æ–¹ ã”ãç°¡å˜ãªä¾‹: require 'rubygems' require 'eventmachine' EventMachine.run { EventMachine.start_server('localhost', 7000, EventMachine::Connection) } EventMachine.run ã¯ã‚¤ãƒ™ãƒ³ãƒˆå¾…ã¡ã®ç„¡é™ãƒ«ãƒ¼ãƒ—ã‚’è¡Œã„ã¾ã™ã€‚ブãƒãƒƒã‚¯ã®ä¸èº«ã¯ã‚¤ãƒ™ãƒ³ãƒˆå¾…ã¡ãƒ«ãƒ¼ãƒ—ã®åˆæœŸåŒ–
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