In accordance with still another feature of the invention, {HEAD ~ the communication mechanism} contemplated by the present invention allows the two concurrent processes to operate in {TAIL ~ synchronization} 
In accordance with still another feature of the invention , { HEAD ~ the communication mechanism } contemplated by the present invention allows the two concurrent processes to operate in { TAIL ~ synchronization }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL