net-buffer

Very fast message length-prefixing encoder and decoder.

.encode([Buffer])

encode can accept Buffer or undefined

var net= require('net')
var netBuf= require('net-buffer')
 
var client= net.connect({port: 8181}, function()
{
    client.write( netBuf.encode(undefined) ) // or just .encode()
    client.write( netBuf.encode( new Buffer('Hello World!') ) )
})

.decode(socket, callback[, bodyOnly])

decode directly reads from the socekt without using the socket.on('data', ) event.

var net= require('net')
var decode= require('net-buffer').decode
 
net.createServer(function(socket)
{
    socket.on('readable', decode(socket, function(buffer){
        console.log(buffer)
    }, true))
}).listen(8181)

• socket Socket
• callback Function, called with a single Buffer argument
• bodyOnly Boolean, Optional, Default true; Set to false to get body prefixed with length (can reuse Buffer when need to proxy the Buffer)

.setMaxMessageLength(number)

Defines the maximum supported message length (header), valid values are 2 (for 65,135 bytes) and 4 (for 4,294,967,196 bytes), default is 2.

var netBuf= require('net-buffer')
netBuf.setMaxMessageLength(4)

Benchmark

Below is Mac Air 2013 results

 $ node test.js 100000
 $ > ok sent and received 100000 messages in 0.786218543 seconds

Installation

npm install net-buffer

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MIT License