socket.io的抽象实现：engine.io

engine.io是一个socket.io的抽象实现，作为socket.io的服务器和浏览器之间交换的数据的传输层。它不会取代Socket.IO，它只是抽象出固有的复杂性，支持多种浏览器，设备和网络的实时数据交换。Server (A) Listening on a port

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打印?

1	var engine = require('engine.io')

2	, server = engine.listen(80)

3

4	server.on('connection', function (socket) {

5	socket.send('utf 8 string');

6

});

(B) Intercepting requests for a http.Server

1	var engine = require('engine.io')

2	, http = require('http').createServer().listen(3000)

3	, server = engine.attach(http)

4

5	server.on('connection', function (socket) {

6	socket.on('message', function () { });

7	socket.on('close', function () { });

8

});

(C) Passing in requests

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打印?

01	var engine = require('engine.io')

02	, server = new engine.Server()

03

04	server.on('connection', function (socket) {

05	socket.send('hi');

06

});

07

08

// …

09	httpServer.on('upgrade', function (req, socket, head) {

10	server.handleUpgrade(req, socket, head);

11

});

12	httpServer.on('request', function (req, res) {

13	server.handleRequest(req, res);

14

});

Client

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打印?

1	<script src="/path/to/engine.io.js"></script>

2

<script>

3	var socket = new eio.Socket('ws://localhost/');

4	socket.on('open', function () {

5	socket.on('message', function (data) { });

6	socket.on('close', function () { });

7

});

8

</script>

项目主页：http://www.open-open.com/lib/view/home/1384093598133