Two different connection life time modes are supported. The mode chosen, persistent vs. non persistent, is dependent on the needs of the target server environment.
Persistent socket connections are those connections that are long lived. Once a connection is established that same connection object is used for multiple client to server transactions. The connection is maintained until the client or server application performs a connection disconnect or exits. This type of connection is used by the Transaction Enabler (TE) on UNIX and Windows, z/OS IMS TCP/IP Direct Connect, z/OS CICS TCP/IP Direct Connect, EJB CFB Server and the Tuxedo Proxy Client on UNIX.
Non persistent socket connections are maintained for the duration of a single client to server transaction. After the server returns a response buffer back to the client the server will close its connection. A subsequent client request to the same server requires that a new connection be established. This type of connection is supported only when connecting with the z/OS CICS Socket Listener.
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