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var EventEmitter = require('events').EventEmitter;
var os = require('os');
var fs = require('fs');
var http = require('http');
var util = require('util');
var net = require('net');

var socketObject = { fd: 0 };
module.isApplicationLoader = true;
global.LsNode = new EventEmitter();
startApplication();

function startApplication() {
    var appRoot = process.env.LSNODE_ROOT || process.cwd();
    var startupFile = process.env.LSNODE_STARTUP_FILE || 'app.js';
    LsNode.listenDone = false;

if (process.env.LSNODE_ROOT != undefined) {
        try {
            process.chdir(process.env.LSNODE_ROOT);
        } catch (err) {
            console.error("Error setting directory to: " + 
                          process.env.LSNODE_ROOT + ": " + err);
        }
    }
    if (!startupFile.startsWith('/')) {
        startupFile = appRoot + '/' + startupFile;
    }

process.title = 'lsnode:' + appRoot;

function lsnode_address() {
    return process.env.LSNODE_SOCKET;
}

function customListen(port) {
    function onListenError(error) {
        server.emit('error', error);
    }
    // The replacement for the listen call!
    var server = this;
    if (LsNode.listenDone) {
        throw new Error("http.Server.listen() was called more than once " +
                        "which is not allowed.");
    }
    LsNode.listenDone = true;

var callback;
    if (arguments.length > 1 && typeof(arguments[arguments.length - 1]) == 'function') {
        callback = arguments[arguments.length - 1];
    }
    server.once('error', onListenError);
    server.realListen(socketObject, function() {
        server.removeListener('error', onListenError);
        if (callback) {
            server.once('listening', callback);
        }
        server.emit('listening');
    });
    return server;
}