gistfile1.js

// Our lovely namespace.
var rack = {};

// Access to all set Probes
rack.Probes = {};

// An event will be added through this function
rack.Probes.addEvent = function( pid, timestamp, name, arguments ){
    if(!isDefined(rack.Probes[name]))
      new rack.Probe(name);

  rack.Probes[name].addEvent( new rack.Event(pid, timestamp, name, arguments));
}

// A Probe "type"
rack.Probe = function( name ){
  this.name = name;
  this.events = [];

  rack.Probes[name] = this;
}

rack.Probe.prototype.addEvent = function( event ){
  if( event.name == this.name )
    this.events.push(event);
}

// A Probe "event", i.e. result of a rack.Probe firing in the app
rack.Event = function( pid, timestamp, name, arguments ){
  this.pid = pid;
  this.timestamp = timestamp; // unix time
  this.name = name;
  this.arguments = arguments; // a hash
}