Events instead of log function

[gagle]

Hi,

I'd like to log my own custom errors. Also, I don't want to log every second the message "availableObjects.length=x". Can you inherite the pool from EventEmitter and just emit events so we can catch them and do whatever we want? It's a very easy modification. Just replace this line when you export the module:

var me = {},

By this:

var Pool = function (){
  events.EventEmitter.call (this);
};
Pool.prototype = Object.create (events.EventEmitter.prototype);
Pool.prototype.constructor = Pool;
var me = new Pool (),

You must add the events module:

var events = require ("events");

Then, instead of calling the log function you can throw an event with the data. For example, the createResource function:

me.emit ("create-resource", count, factory.min, factory.max);

And to catch it from outside your library:

pool.on ("create-resource", function (count, min, max){
  ...
});

[sandfox]

Very down with this idea in general. Have a couple of questions though.
Would we continue to also support log at the same time?
For error events, should we only emit if we have a listener? (if we emit regardless and there is no listener then we will blow things up for the user).

I can see this either being a something to bump the major version for (so we can go crazy and change behaviour) or being conservative changes and just a minor version bump.

Thoughts?

[sandfox]

Going to close for now until a more concrete proposal or impl comes along.