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MQSeries.net Forum Index » IBM MQ Installation/Configuration Support » MQMD

MQMD

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GregJ

Posted: Wed Apr 03, 2002 6:04 am Post subject:

Acolyte

Joined: 24 Oct 2001
Posts: 69
Location: Markham, On. Canada

How big is the Version 2 Message descriptor (in bytes)? I am trying to get this info for 'sizing purposes' but all I can find is the "The first 324 bytes of a version 1 and 2 message descriptor are the same - but version 2 adds some fields.

Anyone know the TOTAL size of a standard version 2 descriptor?
Thanks

kolban

Posted: Wed Apr 03, 2002 6:14 am Post subject:

Grand Master

Joined: 22 May 2001
Posts: 1072
Location: Fort Worth, TX, USA

The safest way to answer the question is to add up the fields yourself. See the Application Programming Reference. An MQLONG is 4 bytes and an MQCHAR 1 byte ... from there is should be pretty simple to add them up.

bower5932

Posted: Thu Apr 04, 2002 8:43 am Post subject:

Jedi Knight

Joined: 27 Aug 2001
Posts: 3023
Location: Dallas, TX, USA

You could also write a small C program to do a sizeof of the structure.

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