Index: src/libchcore/TOverlappedWriterFB.h
===================================================================
diff -u -N -r734408890246965d47e6bbf2c2978371269dd1fd -r980c1a0de537813728871676200a0960410b11fb
--- src/libchcore/TOverlappedWriterFB.h	(.../TOverlappedWriterFB.h)	(revision 734408890246965d47e6bbf2c2978371269dd1fd)
+++ src/libchcore/TOverlappedWriterFB.h	(.../TOverlappedWriterFB.h)	(revision 980c1a0de537813728871676200a0960410b11fb)
@@ -35,6 +35,8 @@
 
 		TOverlappedWriterPtr GetWriter() const { return m_spWriter; }
 
+		void SetReleaseMode() { m_bReleaseMode = true; }
+
 		TSubTaskBase::ESubOperationResult OnWritePossible(bool& bStopProcessing, bool& bProcessedFlag);
 		TSubTaskBase::ESubOperationResult OnWriteFailed(bool& bStopProcessing, bool& bProcessedFlag);
 		TSubTaskBase::ESubOperationResult OnWriteFinished(bool& bStopProcessing, bool& bProcessedFlag);
@@ -51,6 +53,7 @@
 		TFileInfoPtr m_spSrcFileInfo;
 		TFileInfoPtr m_spDstFileInfo;
 		TBufferListPtr m_spEmptyBuffers;
+		bool m_bReleaseMode = false;
 	};
 
 	using TOverlappedWriterFBPtr = std::shared_ptr<TOverlappedWriterFB>;