== Files ==
	ocarina/include/
		idle.h
		idle.hpp
	ocarina/lib/
		idle.cpp

== Depends ==
version print

Idle queue: (lib/idle.cpp)
	The idle queue is used to schedule tasks to run at a later time.  Idle
	tasks must inherit from the IdleBase class so that multiple templated
	IdleTask pointers can be placed on the same idle queue.

	Creating an idle queue in idle.hpp will create a new queue for every
	file that idle.h is included in.  I want to have a single, shared
	idle queue used by the entire application so to get around this the
	IdleBase class is used and implemented in lib/idle.cpp.

- IdleBase:
	class IdleBase {
	private:
		schedule();

	public:
		IdleBase();
		~IdleBase();
		virtual void run() = 0;
	};

- IdleTask:
	template <class T>
	class IdleTask : IdleBase {
	private:
		void (*func)(T &);
		T &data;

	public:
		IdleTask(void (*)(T &), T);
		void run();
	};

- Queue:
	queue<IdleBase *> idle_queue;
	float queued = 0.0
	float serviced = 0.0

- API:
	void IdleBase :: schedule();
		Add the idle task to the idle queue.  This should be called
		by the IdleTask constructor.
		queued++;

	template <class T>
	static inline void idle :: schedule(void (*)(T &), T);
		Create a new IdleTask to run the function later.

	bool idle :: run_task();
		If there are tasks on the queue:
			run the next task
			scheduled++
		If there are still tasks on the queue:
			return true
		else:
			queued = 0
			scheduled = 0
			return false

	float idle :: get_progress();
		Return (serviced / queued) to the caller.  If there are no
		tasks, return 1.0 to indicate that the queue is finished (and
		to avoid a divide-by-zero error).