I have written C coded to display the contents of the dead letter queue for our support team. We have groups starting to use the MQ delayed delivery option where messages go to the SYSTEM.DDELAY.LOCAL.QUEUE then are delivered to the appropriate queue at a later time. I see the first structure in the message is 'DDH ' which I assume to be the Delayed Delivery Header.
I have found no documentation in the include files that describes the structure. Others are described in the cmqc.h include file. I see the 'DDH ', the version, some hex bytes, the name of the qmgr and the name of the queue. Can anyone tell me what bytes 9-16 represent? Examples of just the first part of the DDH header:
X 4444482001000000BC8187E849CD0500FFFFFFFFFFFFFFFF51 <DDH ........I...........Q>
X 4444482001000000E7FC8BE849CD0500FFFFFFFFFFFFFFFF51 <DDH ........I...........Q>
X 4444482001000000A39495E849CD0500FFFFFFFFFFFFFFFF51 <DDH ........I...........Q>
X 444448200100000036D096E849CD0500FFFFFFFFFFFFFFFF51 <DDH ....6...I...........Q>
X 44444820010000004D4F9AE849CD0500FFFFFFFFFFFFFFFF51 <DDH ....MO..I...........Q>
X 4444482001000000F937BBE849CD0500FFFFFFFFFFFFFFFF51 <DDH .....7..I...........Q>
X 44444820010000002575C0E849CD0500FFFFFFFFFFFFFFFF51 <DDH ....%u..I...........Q>
X 4444482001000000E629CAE849CD0500FFFFFFFFFFFFFFFF51 <DDH .....)..I...........Q>
X 4444482001000000CD5FCBE849CD0500FFFFFFFFFFFFFFFF51 <DDH ....._..I...........Q>
X 444448200100000087A7D5E849CD0500FFFFFFFFFFFFFFFF51 <DDH ........I...........Q>
X 44444820010000003ED3D6E849CD0500FFFFFFFFFFFFFFFF51 <DDH ....>...I...........Q>
On the first line, I assume this is either the offset or the time to deliver the message?
'BC8187E8 49CD0500'.
Any guidance?
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Earle Ake
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