@@ -177,12 +177,16 @@
  * \return A boolean whether events occurred during the timeinterval
  */
 - (BOOL)observeWithTimeout: (int)timeout;
 
 /// \cond internal
+- (void)_addFileDescriptorForReading: (int)fd;
+- (void)_addFileDescriptorForWriting: (int)fd;
+- (void)_removeFileDescriptorForReading: (int)fd;
+- (void)_removeFileDescriptorForWriting: (int)fd;
 - (void)_processQueue;
 - (BOOL)_processCache;
 /// \endcond
 @end
 
 @interface OFObject (OFStreamObserverDelegate) <OFStreamObserverDelegate>
 @end