@@ -23,10 +23,11 @@
 @class OFMutableArray OF_GENERIC(ObjectType);
 @class OFDate;
 #ifdef OF_HAVE_THREADS
 @class OFMutex;
 #endif
+@class OFDataArray;
 
 /*!
  * @protocol OFKernelEventObserverDelegate
  *	     OFKernelEventObserver.h ObjFW/OFKernelEventObserver.h
  *
@@ -120,10 +121,12 @@
 	struct sockaddr_in _cancelAddr;
 #endif
 #ifdef OF_HAVE_THREADS
 	OFMutex *_mutex;
 #endif
+	OFDataArray *_queueActions;
+	OFMutableArray *_queueObjects;
 }
 
 #ifdef OF_HAVE_PROPERTIES
 @property OF_NULLABLE_PROPERTY (assign)
     id <OFKernelEventObserverDelegate> delegate;