Specify default message handling for escape messages

Default message handling actions can consist of:

• Default program name. A program to be called that takes default action to handle a message. The following parameters are passed to the default program:
  • Call message queue name. This parameter is a structure that consists of many fields that identify where the system sent the message.
  • Message reference key (4 characters). The message reference key of the escape message on the call message queue.
• Dump list. A list of message data field numbers (the same numbers as the substitution variables) that indicate which objects are to be dumped.

  In addition, you can dump any of the following:

  • The data areas for the job
  • An internal machine data structure of a job
  • A job

    Specifying a dump list for a job is equivalent to specifying the Display Job (DSPJOB) command with the parameters JOB(*) OUTPUT(*PRINT).

If you do not specify default actions in message descriptions, you will get a dump of the job (as if DSPJOB JOB(*) OUTPUT(*PRINT) was specified).

The default action specified in a message is taken only after the message percolation action is completed without the escape message being handled.