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PCF command messages

 

Each command and its parameters are sent as a separate command message containing a PCF header followed by a number of parameter structures (see MQCFH - PCF header). The PCF header identifies the command and the number of parameter structures that follow in the same message. Each parameter structure provides a parameter to the command.

Replies to the commands, generated by the command server, have a similar structure. There is a PCF header, followed by a number of parameter structures. Replies can consist of more than one message but commands always consist of one message only.

On platforms other than z/OS, the queue to which the PCF commands are sent is always called the SYSTEM.ADMIN.COMMAND.QUEUE. On z/OS, commands are sent to SYSTEM.COMMAND.INPUT, although SYSTEM.ADMIN.COMMAND.QUEUE can be an alias for it.The command server servicing this queue sends the replies to the queue defined by the ReplyToQ and ReplyToQMgr fields in the message descriptor of the command message.

• How to issue PCF command messages
  

• Message descriptor for a PCF command
  

• Sending user data
  

 

Parent topic:

Using Programmable Command Formats

pc10370_

 

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