Hello, I have a situation where clients (behind a firewall, blocking incoming connections) need to register with a server for the purpose of receiving notification of certain events.
The asynchronous client documentation http://xmlrpc-c.sourceforge.net/doc/libxmlrpc_client++.html#asynch together with the example code xmlrpc_asynch_client.c show, how I can register a one-time callback. But my understanding is that this only waits for the server side procedure to return, upon the return the callback is executed, and then the callback can't be executed again from the server side. How can I setup a client-server pair, where the server can execute the same client callback repeatedly? A workaround is of course to again register the client callback immediately whenever the client is calledback from the server. But this causes a large overhead. Kind regards, A. Kalaghan
