[Pythondirector-stuff] dealing with clean server close

[Tom S. <ts...@re...>]

Hi,

I started using pydirector yesterday, and for the most part it is perfect
for my needs.  However I encountered a problem with a particular HTTP UA and
the twisted implementation.

The HTTP UA makes a connection to the HTTP server through pydirector, and
gets the data it needs.  However an ethereal trace showed that when the HTTP
server closed its connection to pydirector, pydirector did not close its
connection to the UA, and the UA kept waiting.

A look at pdnetworktwisted.py showed me this:

    def connectionLost(self, reason):
        """
            the server is done, and has closed the connection. write out any
            remaining data, and close the socket.
        """
        if self.receiver is not None:
            if reason.type is twisted.internet.error.ConnectionDone:
                return
                
            elif reason.type is twisted.internet.error.ConnectionLost:
                pass
            else:
                #print id(self),"connection to server lost:",reason
                pass
            self.receiver.transport.loseConnection() 

It appears that for the ConnectionDone case, pydirector is not closing the
connection to the client.  This is called out as a special case, so I assume
there is a reason, but I don't see it.

Can you help me understand?

Thanks,
Tom Smith.