// unregister descriptor previously registered with RegisterFD()
virtual bool UnregisterFD(int fd) = 0;
+ // check if any events are currently available without dispatching them
+ virtual bool HasPending() const = 0;
+
// wait for an event for at most timeout milliseconds and process it;
- // return true if we processed any events or false if timeout expired
- // without anything happening
- virtual bool Dispatch(int timeout = TIMEOUT_INFINITE) = 0;
+ // return the number of events processed (possibly 0 if timeout expired) or
+ // -1 if an error occurred
+ virtual int Dispatch(int timeout = TIMEOUT_INFINITE) = 0;
virtual ~wxFDIODispatcher() { }
};