[openamq-dev] Multi-threaded connection requests fail?

Elli Barasch comptonsw at comcast.net
Wed Nov 7 08:07:09 CET 2007


Thanks for the help Mike, but as I wrote privately, your implementation 
doesn't address my
problem, so I'm reissuing this request back to the authors:

amq_client_connection_new fails if
I build a multithreaded client under Ubuntu Gutsy.  It does _not_ fail 
when built single-threaded...

Please advise.


Elli Barasch wrote:
> I'd appreciate that - That would help a lot.  Maybe I'm missing 
> something simple in my makefile??
>
> Mike Owens wrote:
>   
>> I am using OpenAMQ on Ubuntu Feisty in a multi-threaded build 
>> (-DREENTRANT -pthread) and everything seems to be working okay. I can 
>> send you my simple project and you can see if you are getting the same 
>> problem with it. I combined the im_sender/receiver into a common C++ 
>> class that acts as a consuming/producing peer. Using that class I 
>> created a simple client and server program. that send messages back 
>> and forth.
>>
>> -- Mike
>>
>> On Nov 6, 2007 2:07 PM, Elli Barasch <comptonsw at comcast.net 
>> <mailto:comptonsw at comcast.net>> wrote:
>>
>>     Hi,
>>     In V1.2-c4 on Ubuntu Linux, I'm having difficulty getting
>>     amq_client_connection_new to return a non-zero connection value when
>>     built in a multi-threaded environment.  The exact same call works just
>>     fine if I build in single-threaded environment.  Any ideas?
>>
>>     The call is being made in the main line of execution, that is, before
>>     any threads are spun.  I expect to be able to create sessions
>>     within each thread that attach to the main-line's process-global
>>     connection.
>>
>>     Thanks in advance,
>>     Elli
>>
>>     Mu
>>
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