class Timers::Events::Handle

Represents a cancellable handle for a specific timer event.

def <=> other 

def <=> other
	@time <=> other.time
end

def cancel!

Cancel this timer, O(1). 
def cancel!
	# The simplest way to keep track of cancelled status is to nullify the
	# callback. This should also be optimal for garbage collection.
	@callback = nil
end

def cancelled?

Has this timer been cancelled? Cancelled timer's don't fire. 
def cancelled?
	@callback.nil?
end

def fire(time)

Fire the callback if not cancelled with the given time parameter. 
def fire(time)
	@callback.call(time) if @callback
end

def initialize(time, callback) 

def initialize(time, callback)
	@time = time
	@callback = callback
end