git: purgatorio

ref: a39ae178fcc4387fe63efea4d15b34d52f4a13de
dir: /appl/demo/lego/timers.m/

Timers : module{
	Timer : adt {
		id : int;
		tick : chan of int;

		reset : fn (t : self ref Timer);
		cancel : fn (t : self ref Timer);
		destroy : fn (t : self ref Timer);
	};

	init : fn (res : int);
	new : fn(ms, rep : int) : ref Timer;
};