Index: src/libchcore/TSimpleTimer.h
===================================================================
diff -u -r9b8cccbee0fcfeca28a112cc0253a7641f73f74f -rc8e73b75027d5e17fb8b1e1eb40e64f40fc62547
--- src/libchcore/TSimpleTimer.h	(.../TSimpleTimer.h)	(revision 9b8cccbee0fcfeca28a112cc0253a7641f73f74f)
+++ src/libchcore/TSimpleTimer.h	(.../TSimpleTimer.h)	(revision c8e73b75027d5e17fb8b1e1eb40e64f40fc62547)
@@ -24,23 +24,31 @@
 
 BEGIN_CHCORE_NAMESPACE
 
-class TSimpleTimer
+class LIBCHCORE_API TSimpleTimer
 {
 public:
 	TSimpleTimer(bool bAutostart = false, const ITimestampProviderPtr& spTimestampProvider = ITimestampProviderPtr());
 	~TSimpleTimer();
 
+	void Init(unsigned long long ullTotalTime);
+
 	void Start();
 	unsigned long long Stop();		// returns total time
 	unsigned long long Tick();		// returns current timestamp
 
+	unsigned long long Checkpoint();	// returns current total time and restarts the timer
+
 	void Reset();
 
+	bool IsRunning() const;
 	unsigned long long GetTotalTime() const { return m_ullTotalTime; }
 	unsigned long long GetLastTimestamp() const { return m_ullLastTime; }
 
 private:
+#pragma warning(push)
+#pragma warning(disable: 4251)
 	ITimestampProviderPtr m_spTimestampProvider;
+#pragma warning(pop)
 
 	bool m_bStarted;
 	unsigned long long m_ullTotalTime;		// total time measured