Can't use Poco TCPServer and TCPServerConnectionFactory

Question

I'm using a TCPServer inside an activity. For simplify my design I make my activity ihnerit from TCPServerConnectionFactory. With that, my activity implement CreateConnection() method.

To create my TCPServer I make :

Poco::Net::TCPServer(this, serverSocket);

Unfortunately, when my TCPServer is destroyed, it also destroy (this) that I have given in parameter. So it call dtor of my activity, that's really annoying.

Looking deeply in the Poco code and I see that TCPServer create a Poco::shared_Ptr of (this) and when this Shared_Ptr is destroyed, it delete the content of the shared_ptr.

How I can pass (this) to TCPServer without be destroyed at the end of the life of TCPServer ?

Answer 1

You have to pass the connection factory allocated on the heap to the TCPServer. For an example, see TimeServer example:

class TimeServerConnection: public TCPServerConnection
{
  //...
};

// ...

class TimeServerConnectionFactory: public TCPServerConnectionFactory
{
  // ...
  TCPServerConnection* createConnection(const StreamSocket& socket)
  {
    return new TimeServerConnection(socket, _format);
  }
  // ...
};

// set-up a server socket
ServerSocket svs(port);
// retain the handle to shared ptr for later use
TCPServerConnectionFactory::Ptr pTSCF = new TimeServerConnectionFactory(format);
// set-up a TCPServer instance
TCPServer srv(pTSCF, svs);