title: XMLRPCPP asynchronously handling multiple calls?
body: <p>I have a remote server which handles various different commands, one of which is an event fetching method.</p>
  
  <p>The event fetch returns right away if there is 1 or more events listed in the queue ready for processing. If the event queue is empty, this method does not return until a timeout of a few seconds. This way I don't run into any HTTP/socket timeouts. The moment an event becomes available, the method returns right away. This way the client only ever makes connections to the server, and the server does not have to make any connections to the client.
  This event mechanism works nicely. I'm using the boost library to handle queues, event notifications, etc.</p>
  
  <p>Here's the problem. While the server is holding back on returning from the event fetch method, during that time, I can't issue any other commands.
  In the source code, XmlRpcDispatch.cpp, I'm seeing in the "work" method, a simple loop that uses a blocking call to "select".
  Seems like while the handling of a method is busy, no other requests are processed.</p>
  
  <p>Question: am I not seeing something and can XmlRpcpp (xmlrpc++) handle multiple requests asynchronously? Does anyone know of a better xmlrpc library for C++? I don't suppose the Boost library has a component that lets me issue remote commands?
  I actually don't care about the XML or over-HTTP feature. I simply need to issue (asynchronous) commands over TCP in any shape or form?
  I look forward to any input anyone might offer.</p>