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| Simple way of going to first msg after each get? |
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| pcelari |
 Posted: Mon Sep 10, 2007 10:12 am Post subject: Simple way of going to first msg after each get? |
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Chevalier
Joined: 31 Mar 2006
Posts: 411
Location: New York
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I wrote a C program to reconciliate logged requests and replies msg on two queues. Since the sequence of msg on both queues are not guaranteed, and I want to avoid using MQGET1 call, I need to move the cursor to the first msg on replyQ after each matching is found and msg removed from the replyQ.
I use Match_CorelId to find and get the msg from replyQ, based on the CorrelId of the msg on requestQ.
Intuitively, I think a regular MQGET call with match option should do just as I need, but I'm not so sure about that. Can anyone clarify this?
thanks a lot.
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pcelari
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| Vitor |
| Posted: Mon Sep 10, 2007 10:44 am Post subject: |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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An MQGET with any match option will return the "first" matching message, where "first" is determined by the queue's delivery options.
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| pcelari |
| Posted: Mon Sep 10, 2007 11:05 am Post subject: |
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Chevalier
Joined: 31 Mar 2006
Posts: 411
Location: New York
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Many thanks for clarifying this.
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pcelari
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| jefflowrey |
| Posted: Mon Sep 10, 2007 11:16 am Post subject: |
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Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
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It seems a lot easier to have the requesting program log an exception when a reply message is not correlated.
It seems a lot of work to have the requesting program log every message it sends, and the server/replier program log every message it sends, and then a third process to decide if something got missed.
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