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Logical Full Duplex CLOSE Disclosure Number: IPCOM000061285D
Original Publication Date: 1986-Jul-01
Included in the Prior Art Database: 2005-Mar-09

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Heidt, DD Munroe, SJ Schwane, WH Ziecina, FJ [+details]


A Full Duplex Close of a connection in a computing system between two processors may be initiated by either process using the connection. There are no restrictions concerning which side may initiate the close. When a close is initiated, the connection is driven through a series of states on each side of the connection that insures: . once the close is initiated, no further work requests may be started by the processes on either side of the connection, and . all work in progress (at the time the close is initiated) is completed, either normally or abnormally, before shutting down the connection. A Connection Manager is defined and exists on both sides of the full duplex connection. Its role is to drive the connection through the series of close states.