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| Problem with MQGET |
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| sanjoo |
 Posted: Wed Oct 26, 2005 4:42 am Post subject: Problem with MQGET |
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Acolyte
Joined: 26 Oct 2005
Posts: 65
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Hi,
I am facing one problem with MQGET.
There is one C application program which reads one queue and writes into some file.
But sometimes what happens is after delivering MQGET successfully,it gets the message length but not writting the actual message in the file.
(Buffer size is 4MB.)
This happens exceptionally.
Any guess why?
Thanks.
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Sanjoo
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| jefflowrey |
| Posted: Wed Oct 26, 2005 4:45 am Post subject: Re: Problem with MQGET |
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Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
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| sanjoo wrote: |
| Any guess why? |
It's a bug in your code.  
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| wmqiadmin |
| Posted: Wed Oct 26, 2005 5:07 am Post subject: |
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Disciple
Joined: 19 Jun 2005
Posts: 163
Location: epping UK
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Hi,
even i faced the same problem, i tried to change the location but the file was always blank.
Any buddy pls any inputs
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| jefflowrey |
| Posted: Wed Oct 26, 2005 5:11 am Post subject: |
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Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
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Look, if you're getting empty files then either the input message didn't have any data in it, or the program to put the message into a file has a bug in it.
You can't solve this kind of problem without troubleshooting it.
We can't help you solve this problem unless you help us, by telling us what you have done to troubleshoot it, and what the results were.
In order to be successful in IT work, you have to know how to solve problems in GENERAL, not just know specific steps to resolve specific things without knowing why or how those steps fix things.
Also, wmqiadmin, unless you actually work with Sanjoo, it's extremely unlikely that you actually have the same problem. So if you have a problem, you should start a new post that actually DESCRIBES it, and what you have done to troubleshoot it.
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| sanjoo |
| Posted: Thu Oct 27, 2005 12:40 am Post subject: |
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Acolyte
Joined: 26 Oct 2005
Posts: 65
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Got the problem....
This has to do with null character. If message contains null (/0) character, then printf %s function will assume end of string and hence message will not br printed.
But not the solution ...
Anyway .. thanks for the help.
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Sanjoo
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| sanjoo |
| Posted: Thu Oct 27, 2005 2:45 am Post subject: |
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Acolyte
Joined: 26 Oct 2005
Posts: 65
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Solved 
printlen = strlen(buffer);
printf("\t%s\t%s\t%d\t%s-%s\t%s\t%s\t%s\t%d\t%d\t%d\t<%s>", timeBuffer, applName, md.PutApplType, putDate, putTime, RepQ, RepQM, userID, md.CodedCharSetId, md.Encoding, messlen, buffer);
while (printlen < messlen)
{
printf(" ");
printf("%s",buffer+printlen);
strbufflen=strlen(buffer+printlen);
if(strbufflen==0)
printlen++;
else
printlen=printlen+strbufflen;
}
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