Lots of debug logging, some casting.

git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@4001 542714f4-19e9-0310-aa3c-eee0fc999fb1

src/as/com/threerings/io/FrameReader.as

@@ -8,6 +8,8 @@ import flash.net.Socket;
 import flash.util.ByteArray;
 import flash.util.Endian;
 
+import com.threerings.presents.Log;
+
 /**
  * Reads socket data until a complete frame is available.
  * This dispatches a FrameAvailableEvent.FRAME_AVAILABLE once a frame
@@ -26,6 +28,7 @@ public class FrameReader extends EventDispatcher
      */
     protected function socketHasData (event :ProgressEvent) :void
     {
+        Log.debug("socketHasData(" + _socket.bytesAvailable + ")");
         if (_curData == null) {
             if (_socket.bytesAvailable < HEADER_SIZE) {
                 // if there are less bytes available than a header, let's
@@ -51,12 +54,15 @@ public class FrameReader extends EventDispatcher
         if (_length === _curData.length) {
             // we have now read a complete frame, let us dispatch the data
             _curData.position = 0; // move the read pointer to the beginning
+            Log.debug("+ FrameAvailable");
             dispatchEvent(new FrameAvailableEvent(_curData));
             _curData = null; // clear, so we know we need to first read length
 
             // there's a good chance there's more on the socket, recurse
             // now to read it
-            socketHasData(event);
+            if (_socket.bytesAvailable >= HEADER_SIZE) {
+                socketHasData(event);
+            }
         }
     }