ref: 5cca8cb85bf2fe2e299301c7c75892d9b6f6504b
dir: /module/lock.m/
Lock: module
{
PATH: con "/dis/lib/lock.dis";
Semaphore: adt {
c: chan of int;
obtain: fn(nil: self ref Semaphore);
release: fn(nil: self ref Semaphore);
new: fn(): ref Semaphore;
};
init: fn();
};