Removes all instances from the registry.
Removes all instances from the registry. This should be done AFTER a top-level unpickle/pickle call.
Looks up an unpicklee by its object id.
Looks up an unpicklee by its object id. Throws an exception if oid is not valid.
Grabs the registeration id for the next object.
Registers an object to an id, after its FIRST deserialization.
This is the interface used by unpicklers to register/handle
Reftypes when unpickling.We assume only one thread will be talking to a RefUnpicklingRegistry at a time.