Overview for MQRR

• AIX
• IBM i
• Linux
• Windows

and for IBM MQ clients connected to these systems.

Purpose: Use the MQRR structure to receive the completion code and reason code resulting from the open or put operation for a single destination queue, when the destination is a distribution list. MQRR is an output structure for the MQOPEN, MQPUT, and MQPUT1 calls.

Character set and encoding: Data in MQRR must be in the character set given by the CodedCharSetId queue manager attribute and encoding of the local queue manager given by MQENC_NATIVE. However, if the application is running as an MQ MQI client, the structure must be in the character set and encoding of the client.

Usage: By providing an array of these structures on the MQOPEN and MQPUT calls, or on the MQPUT1 call, we can determine the completion codes and reason codes for all the queues in a distribution list when the outcome of the call is mixed, that is, when the call succeeds for some queues in the list but fails for others. Reason code MQRC_MULTIPLE_REASONS from the call indicates that the response records (if provided by the application) have been set by the queue manager.