Index: src/libchcore/TSubTaskStatsInfo.h
===================================================================
diff -u -N -r19925be73ffcadd9f345f10e03e55aadb3f0eeac -rd0bc3c187684f54894c7280a936d5507a5e49f35
--- src/libchcore/TSubTaskStatsInfo.h	(.../TSubTaskStatsInfo.h)	(revision 19925be73ffcadd9f345f10e03e55aadb3f0eeac)
+++ src/libchcore/TSubTaskStatsInfo.h	(.../TSubTaskStatsInfo.h)	(revision d0bc3c187684f54894c7280a936d5507a5e49f35)
@@ -63,8 +63,11 @@
 public:
 	TSubTaskStatsInfo();
 
+	void Init(int iCurrentBufferIndex, size_t stTotalCount, size_t stProcessedCount, unsigned long long ullTotalSize, unsigned long long ullProcessedSize, const TString& strCurrentPath);
 	void Clear();
 
+	bool IsInitialized() const;
+
 	void GetSnapshot(TSubTaskStatsSnapshotPtr& spStatsSnapshot) const;
 
 	void IncreaseProcessedCount(size_t stIncreaseBy);
@@ -74,12 +77,14 @@
 
 	// size stats
 	void IncreaseProcessedSize(unsigned long long ullIncreaseBy);
+	void DecreaseProcessedSize(unsigned long long ullDecreaseBy);
 	void SetProcessedSize(unsigned long long ullProcessedSize);
 
 	void SetTotalSize(unsigned long long ullTotalSize);
 
 	// current item
 	void IncreaseCurrentItemProcessedSize(unsigned long long ullIncreaseBy);
+	void DecreaseCurrentItemProcessedSize(unsigned long long ullDecreaseBy);
 	void SetCurrentItemProcessedSize(unsigned long long ullProcessedSize);
 
 	void SetCurrentItemTotalSize(unsigned long long ullTotalSize);
@@ -128,6 +133,7 @@
 		eMod_CurrentBufferIndex,
 		eMod_CurrentPath,
 		eMod_SubOperationType,
+		eMod_IsInitialized,
 
 		// last item
 		eMod_Last
@@ -157,6 +163,8 @@
 
 	TSharedModificationTracker<ESubOperationType, Bitset, eMod_SubOperationType> m_eSubOperationType;
 
+	TSharedModificationTracker<bool, Bitset, eMod_IsInitialized> m_bIsInitialized;
+
 #pragma warning(push)
 #pragma warning(disable: 4251)
 	mutable boost::shared_mutex m_lock;