ref: 43de7b8419fa3582af6df803473ef1bde2ce5c23
dir: /appl/cmd/lego/timers.m/
Timers : module{ PATH: con "/dis/lego/timers.dis"; 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; };