Good morning message program

The CICS® good morning program issues a good morning message for z/OS® Communications Server logical units.

Design overview

This module is invoked by running the CSGM system transaction.

If a satisfactory OPNDST has occurred (detected in the OPNDST exit, DFHZOPX) and if a “good morning” message has been requested in the TYPETERM resource definition or the TCT TYPE=TERMINAL macro, an NACP request is queued. NACP issues a DFHIC TYPE=INITIATE for this transaction.

This module determines the terminal type, sets up the appropriate control characters, gets a TIOA, and writes the message.

For a 3270 terminal, if the operator has entered data before the message has been received, NACP may be invoked to handle intervention required. In this case the transaction is abended and the write operation terminated.

You specify the default message text in the GMTEXT system initialization parameter.

Modules

DFHGMM

Exits

The XGMTEXT global user exit point is provided in DFHGMM. For further information about this, see Good morning message program exit (XGMTEXT).

Trace

No trace points are provided for this function.