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| MQ Server exit in AIX/C++ |
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| mq_blr |
 Posted: Tue Dec 16, 2008 2:01 am Post subject: MQ Server exit in AIX/C++ |
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Apprentice
Joined: 30 Sep 2005
Posts: 49
Location: Brisbane,Australia
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Hi Friends,
We trying to security exit in AIX using C++ with xlc++ compiler we are getting the following error
Command we used
xlc++ -G -v -o libGIOMQExit test1.o test2.o -bexpall
-bM:SRE -e MQStart -q64 -qchars=signed -I/usr/mqm/inc -L/usr/mqm/lib64 -limqb23i
a -limqs23ia
Any clues??
16.12.08 12:05:44 - Process(602130.39) User(mqm) Program(amqrmppa)
AMQ6188: The system could not dynamically load the shared library
'/var/mqm/exits64//xxxx as the entry point to the library, symbol
'MQStart', could not be located within the library. The queue manager will
continue without this library.
EXPLANATION:
This message applies to AIX systems. The shared library
'/var/mqm/exits64//xxxx failed to load correctly due to a problem with
the library.
ACTION:Check that the entry point to the library, symbol 'MQStart', exists and has
been exported from the library.
----- amqxufnx.c : 1160 -------------------------------------------------------
16.12.08 12:05:44 - Process(602130.39) User(mqm) Program(amqrmppa)
AMQ9535: User exit not valid. |
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| xhaxk |
| Posted: Tue Dec 16, 2008 12:40 pm Post subject: |
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Apprentice
Joined: 30 Oct 2008
Posts: 31
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| exits must be written in C, not C++ |
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| gbaddeley |
| Posted: Tue Dec 16, 2008 2:58 pm Post subject: |
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Jedi
Joined: 25 Mar 2003
Posts: 2495
Location: Melbourne, Australia
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The exits needs a dummy entry point called MQStart. I suggest you have a careful read of the WMQ Intercommunication manual to get a good understanding of MQ exits and how to compile them.
_________________
Glenn |
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| mq_blr |
| Posted: Tue Dec 16, 2008 11:48 pm Post subject: |
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Apprentice
Joined: 30 Sep 2005
Posts: 49
Location: Brisbane,Australia
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Thanks for the reply Glenn .
Just want to confirm whether we can write security exit using C++ in AIX or we have to use C only in AIX . |
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| mvic |
| Posted: Wed Dec 17, 2008 4:03 pm Post subject: |
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Jedi
Joined: 09 Mar 2004
Posts: 2080
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| mq_blr wrote: |
| Just want to confirm whether we can write security exit using C++ in AIX or we have to use C only in AIX . |
Your channel exits get loaded into MQ's channel programs. Those programs are written in C and do not have any C++ runtime loaded. So, though I am guessing a bit here, I think any C++ runtime facilities needed by the C++ code in your exit would fail to work because of the absence of a C++ runtime in the process. |
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