Functional description

Following is a description of the three exits.

Initialization exit

Use the initialization exit to indicate to Session Manager which streams you want to monitor. You also indicate whether Session Manager should log line-mode output while users are executing full-screen programs. The initialization exit receives control from the Session Manager initialization program, ADFMDF0A. This exit does not hold any locks.

Stream monitoring exit

Use the stream monitoring exit to monitor the different Session Manager streams and perform required processing. The stream monitoring exit receives control, holding the local lock, from either of the following Session Manager programs:

ADFIMPUT, which puts a line into a stream
ADFIMGET, which gets a line of input from a stream

For information about locks and serialization, see .

Before ADFIMPUT puts a line into a stream (excluding the TSO/E input stream), it determines if the stream is being monitored. If it is, ADFIMPUT invokes the stream monitoring exit routine, then puts the line into the stream.

Whenever ADFIMGET retrieves the next line of input from a stream, it determines if that stream is being monitored. If it is, ADFIMGET invokes the stream monitoring exit routine. By waiting to invoke the exit after the line is retrieved from the input stream instead of invoking the exit when the line was put into the stream, the exit routine receives the command that will now execute, not an input line that is being stacked into the input stream.

Termination exit

Use the termination exit to perform required processing before Session Manager ends. The termination exit receives control from the Session Manager initialization program (ADFMDF0A) holding the local lock. The exit gets control whenever the user enters either the following:

Session Manager END command
TSO/E LOGOFF command