Index: src/libchcore/TOverlappedWriterFB.h
===================================================================
diff -u -r734408890246965d47e6bbf2c2978371269dd1fd -rc0d9a798f9fbbeda239b84721ed864f9727e1ddc
--- src/libchcore/TOverlappedWriterFB.h	(.../TOverlappedWriterFB.h)	(revision 734408890246965d47e6bbf2c2978371269dd1fd)
+++ src/libchcore/TOverlappedWriterFB.h	(.../TOverlappedWriterFB.h)	(revision c0d9a798f9fbbeda239b84721ed864f9727e1ddc)
@@ -35,13 +35,15 @@
 
 		TOverlappedWriterPtr GetWriter() const { return m_spWriter; }
 
-		TSubTaskBase::ESubOperationResult OnWritePossible(bool& bStopProcessing, bool& bProcessedFlag);
-		TSubTaskBase::ESubOperationResult OnWriteFailed(bool& bStopProcessing, bool& bProcessedFlag);
-		TSubTaskBase::ESubOperationResult OnWriteFinished(bool& bStopProcessing, bool& bProcessedFlag);
+		void SetReleaseMode() { m_bReleaseMode = true; }
 
+		TSubTaskBase::ESubOperationResult OnWritePossible();
+		TSubTaskBase::ESubOperationResult OnWriteFailed();
+		TSubTaskBase::ESubOperationResult OnWriteFinished(bool& bStopProcessing);
+
 	private:
-		void AdjustProcessedSize(file_size_t fsWritten);
-		void AdjustFinalSize();
+		TSubTaskBase::ESubOperationResult AdjustProcessedSize(file_size_t fsWritten);
+		TSubTaskBase::ESubOperationResult AdjustFinalSize();
 
 	private:
 		TOverlappedWriterPtr m_spWriter;
@@ -51,6 +53,7 @@
 		TFileInfoPtr m_spSrcFileInfo;
 		TFileInfoPtr m_spDstFileInfo;
 		TBufferListPtr m_spEmptyBuffers;
+		bool m_bReleaseMode = false;
 	};
 
 	using TOverlappedWriterFBPtr = std::shared_ptr<TOverlappedWriterFB>;