Index: src/libchcore/TSubTaskBase.h
===================================================================
diff -u -N -rd76d3ce6c8c55fa23009dbb03b8bc06f482c5b72 -r7d59ab9183c933f2fc2682a95fb5d26cf2f952d7
--- src/libchcore/TSubTaskBase.h	(.../TSubTaskBase.h)	(revision d76d3ce6c8c55fa23009dbb03b8bc06f482c5b72)
+++ src/libchcore/TSubTaskBase.h	(.../TSubTaskBase.h)	(revision 7d59ab9183c933f2fc2682a95fb5d26cf2f952d7)
@@ -28,6 +28,7 @@
 #include "ESubTaskTypes.h"
 #include "TSubTaskStatsInfo.h"
 #include "ISerializer.h"
+#include "IFeedbackHandler.h"
 
 BEGIN_CHCORE_NAMESPACE
 
@@ -56,7 +57,7 @@
 
 	virtual void Reset() = 0;
 
-	virtual ESubOperationResult Exec() = 0;
+	virtual ESubOperationResult Exec(const IFeedbackHandlerPtr& spFeedbackHandler) = 0;
 	virtual ESubOperationType GetSubOperationType() const = 0;
 
 	// serialization