More debug output

src/proto/streams/recv.rs

@@ -121,6 +121,7 @@ impl<B> Recv<B> where B: Buf {
                                  stream: &mut store::Ptr<B>)
         -> Result<(), ConnectionError>
     {
+        trace!("opening stream; init_window={}", self.init_window_sz);
         let is_initial = stream.state.recv_open(self.init_window_sz, frame.is_end_stream())?;
 
         if is_initial {

src/proto/streams/send.rs

@@ -79,7 +79,7 @@ impl<B> Send<B> where B: Buf {
                         stream: &mut store::Ptr<B>)
         -> Result<(), ConnectionError>
     {
-        trace!("send_headers; frame={:?}", frame);
+        trace!("send_headers; frame={:?}; init_window={:?}", frame, self.init_window_sz);
         // Update the state
         stream.state.send_open(self.init_window_sz, frame.is_end_stream())?;