C++ client question

[Petr Parýzek]

Hi, 
I was try to encapsulate qpid client into this simple class
 
class MySender
{
private:
   Connection  *pConn;
 
public:
   MySender() {pConn = NULL;}
   ~MySender() { if (pConn != NULL) delete pConn;}
 
   void Send(const char *Addr, const char *Msg)
   {if (pConn == NULL) pConn = new Connection(URL);
   
    try 
    {if (!pConn->isOpen()) pConn->open();
 
     Session session = pConn->createSession();
     qpid::messaging::Sender sender = session.createSender(Addr);
  
     sender.send(Message(Msg));
    } 
     catch(const std::exception& error) 
    {std::cerr << error.what() << std::endl;
     pConn->close();
    }
   }
};
 
In my program I have one global instance of this class and use its method
Send(). It's simple and it works. However, it is not very effective. I would
like to don't  always create a new instance of Session and its Sender. But
when I create a Session only once and save pointer to it in some member
variable, it stop working. Second call of Send() method throws an exception.
So I ask, how to keep one instance of a Session between calls?
 
Thanks
 
Petr