Apparatus and method for semaphore initialization in a multiprocessing computer system for process synchronization

摘要: Apparatus in a data processing system to initialize semaphore held memory field of the or, alternatively, restore previous predetermined state. A count field, or tally provided is initialized by particular instruction. The can be either non-message message semaphore. instruction initializes non zero preloaded positive value. For semaphore, this zero. If previously had count, messages tied are released and links holding transferred free link queue same descriptor segment. apparatus includes retrieving member for reading content system, testing generating first signal when represents number processes second times kind event has occurred, changing unit responsive controlled inside control controlling cease execution begin execute different