script to check level of concurrency through proxy

concurrent-proxy.js

var util = require('util'),
    colors = require('colors'),
    http = require('http'),
    httpProxy = require('./../lib/node-http-proxy');

//
// Basic Http Proxy Server
//
httpProxy.createServer(9000, 'localhost').listen(8000);

//
// Target Http Server
//
// to check apparent problems with concurrent connections
// make a server which only responds when there is a given nubmer on connections
//


var connections = []
  , go
  , CONCURRENT = 10
http.createServer(function (req, res) {
      
  connections.push (function (){
    res.writeHead(200, { 'Content-Type': 'text/plain' });
    res.write('request successfully proxied to: ' + req.url + '\n' + JSON.stringify(req.headers, true, 2));
    res.end();
  })
  process.stdout.write(connections.length + ', ')
  if (connections.length > CONCURRENT || go) {
    go = true
    while(connections.length)
      connections.shift()()
  }

}).listen(9000);

util.puts('http proxy server'.blue + ' started '.green.bold + 'on port '.blue + '8000'.yellow);
util.puts('http server '.blue + 'started '.green.bold + 'on port '.blue + '9000 '.yellow);