Preforking TCP Server to take advantage of multiple CPU cores

preforkserver.js

(function(){
    var fork = require('fork').fork;
    var netBinding = process.binding('net');
    var net = require('net');
    var workers = [];
    module.exports = preforkServer = function(port, numWorkers, clientServer)
    {
        net.createServer(function(s) {
            s.pause();
            var hv = 0;
            s.remoteAddress.split('.').forEach(function(v) {
                hv += parseInt(v);
            });
            var i = hv % workers.length;
            workers[i].write('test', 'utf8', s.fd);
        }).listen(port);
        var spawnWorker = function()
        {
            var fds = netBinding.socketpair();
            var pid = fork();
            if(pid)
            {
                process.pid = pid;
                var master = new net.Stream(fds[0], 'unix');
                master.resume();
                master.on('end',function(){
                    var index = workers.indexOf(master);
                    if(index >= 0)
                    {
                        workers.splice(index, 1);
                    }
                    setTimeout(spawnWorker, 1000);
                });
                workers.push(master);
                return true;
            }else{
                var child = new net.Stream(fds[1], 'unix');
                child.resume();
                child.on('fd', function(fd)
                {
                    var client = new net.Stream(fd, 'unix');
                    client.type = clientServer.type;
                    client.server = clientServer;
                    client.resume();

                    clientServer.emit('connection', client);
                });
                return false;
            }
        }
        var i = 1;
        do
        {
            var ret = spawnWorker(i)
        }while(ret && i++ < numWorkers);
    };
})();

server.js

(function(){
    var preforkServer = require('preforkserver');
    preforkServer(8124, 8, require('http').createServer(function(req, resp) {
        resp.writeHead(200, {
            'Content-Type' : 'text/plain'
        });
        resp.write('(pid ' + process.pid + ')\n');
        resp.end();
    }));
})();