Socket.IO Scoping Issue (Node.JS)

I am working on a node.js project that I am leveraging Socket.IO in, and am having an issue getting my head around a scoping issue. Here is what I am trying to do:

var io = require('socket.io').listen(80);
session_manager = require('./includes/session_manager');

// client joins the socket server
io.sockets.on('connection', function(client) {
    client.on('X.Session.join', function(session_id, client) {
        session_manager.joinSession(session_id, function(err, session) {
            // do whatever
        });
    });
    // BRING IN MORE LISTENERS/EMITTERS?
    require('someModuleIBuild');
});

As you can see I am basically setting up the initial connection, joining a session via a managing class (so I know who to emit to for which session) and then I am trying to dynamically bring in some custom stuff that ALSO is going to be emitting and listening via the socket connection.

So how do I reference this current connection from within the confines of my custom modules? All the examples I have seen have all the "on" and "emit" functions in one file, which seems like it could get out of control pretty quickly.

I am possibly over-thinking/over-complicating this (this is my开发者_Python百科 first node.js project, first socket-based project, first mostly-javascript project....etc) but any help would be appreciated.

---

create your modules like this and you can pass the client into the module

module.exports = function(client) {
    client.on("whatever", function () {

    });

    client.on("whenever", function (data) {

    });
};

and then do the require like this

require('someModuleIBuild')(client);