Define cork() as pure virtual in Socket class
This makes it possible to create a derived class from Socket which is
not TCP based, without having VNCSConnectionST.cxx trying to call
setsockopt() on a non-socket.
diff --git a/common/network/Socket.h b/common/network/Socket.h
index 874a59c..7a30cac 100644
--- a/common/network/Socket.h
+++ b/common/network/Socket.h
@@ -50,6 +50,7 @@
// if shutdown() is overridden then the override MUST call on to here
virtual void shutdown() {isShutdown_ = true;}
bool isShutdown() const {return isShutdown_;}
+ virtual bool cork(bool enable) = 0;
// information about this end of the socket
virtual int getMyPort() = 0;