more fixes to (e)pgm transport

src/pgm_receiver.hpp

@@ -59,9 +59,16 @@ namespace zmq
 
         //  i_poll_events interface implementation.
         void in_event ();
+        void timer_event (int token);
 
     private:
 
+        //  RX timeout timer ID.
+        enum {rx_timer_id = 0xa1};
+
+        //  RX timer is running.
+        bool has_rx_timer;
+
         //  If joined is true we are already getting messages from the peer.
         //  It it's false, we are getting data but still we haven't seen
         //  beginning of a message.