Your best bet is to create a small sample application that can reproduce
this error so that we can debug it. I've never seen this kind of
behavior from amq-cpp so I don't know yet where it could be failing. If
you can create a sample app and create a Jira issue and attach your
files I can take a look.
Regards
Tim.
On Wed, 2008-04-02 at 00:44 -0700, narts wrote:
> Iam using ActiveMQ 4.1.1 and ActiveMQ-cpp-2.1.3 on Windows 2003 server
> Enterprise Edition with VC++ 8.0.
>
> Iam sending persistent text messsage using Topic to a destination.
> (wireFormat=openwire, transport.useAsyncSend=false,
> Session::AUTO_ACKNOWLEDGE, DeliveryMode::PERSISTENT ).
>
> What my requirement is to generate a message by monitoring Windows. And send
> the generated message to ActiveMQ on central server. And keep on monitoring
> Windows.
> I am using the following code to connect to activemq.
>
> // Create a ConnectionFactory
> ConnectionFactory* connectionFactory =
> ConnectionFactory::createCMSConnectionFactory(
> brokerURI );
>
> // Create a Connection
> connection = connectionFactory->createConnection();
> connection->start();
>
> // free the factory, we are done with it.
> delete connectionFactory;
>
> // Create a Session
> session = connection->createSession( Session::AUTO_ACKNOWLEDGE
> );
>
> // Create the destination (Topic or Queue)
> if( useTopic ) {
> destination = session->createTopic( subject );
> } else {
> destination = session->createQueue( subject );
> }
>
> // Create a MessageProducer from the Session to the Topic or
> Queue
> producer = session->createProducer(destination );
> if(persistent)
> producer->setDeliveryMode( DeliveryMode::PERSISTENT );
> else
> producer->setDeliveryMode(DeliveryMode::NON_PERSISTENT);
>
> if(timeToLive)
> producer->setTimeToLive(timeToLive);
>
> Then after generating every message, i am instantly sending it to activemq
> using following code
>
> // Create a message
> TextMessage* message = session->createTextMessage( sendmessage
> );
> message->setIntProperty( "Integer", 0 );
>
> // Tell the producer to send the message
> producer->send( message );
>
> //indicate message sent
> msgdelivered = true;
>
> delete message;
>
> I am able to send aroung 20000 messages succcessfully. But after that it is
> giving the following exception at a call to send() of producer.
>
> "Unhandeled exception at 0x7c82823e in myaplication.exe:
> 0xC0000005:Access violation writing location 0x00040ffc."
>
> And my application is stopping the execution in free.c at "retval =
> HeapFree(_crtheap, 0, pBlock);".
>
> When i run Stackwalker (from CodeProject, Project:
> Memory_and_Exception_Trace, Author: Jochen Kalmbach) for this application it
> is showing stack over flow in ActivemqCpp.
>
> Thanks,
> narts
>
