ADDITIONAL SYSTEM INFORMATION :
Generic

A DESCRIPTION OF THE PROBLEM :
Currently there is an asymetry between Lock and Semaphore which makes it harder to create classes which do obey "Semaphore" contract, needs to be assignment compatible but needs to do it in an another way (ie prevent something from happening and etc.)

Adding a Semaphore (ie. "inteface ISemaphore") or at least a "clean, pure virtual" abstract class would make my life easier.

Urgency: low.