--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/bluetooth/btstack/linkmgr/encryptionkeyrefreshhelper.h	Tue Sep 14 23:28:24 2010 +0300
@@ -0,0 +1,169 @@
+// Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
+// All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of the License "Symbian Foundation License v1.0"
+// which accompanies this distribution, and is available
+// at the URL "http://www.symbianfoundation.org/legal/sfl-v10.html".
+//
+// Initial Contributors:
+// Nokia Corporation - initial contribution.
+//
+// Contributors:
+//
+// Description:
+//
+
+#ifndef ENCRYPTIONKEYREFRESHHELPER_H
+#define ENCRYPTIONKEYREFRESHHELPER_H
+
+
+#include <bt_sock.h>
+#include <bluetooth/hci/hciutil.h> 
+
+#include "debug.h"
+#include "linkutil.h"
+#include "physicallinkhelper.h"
+#include "physicallinks.h"
+
+// watchdog 
+const TUint KTimeoutEncryptionKeyRefresh =   3000000;  // 3 s; 
+ 
+class TEncryptionKeyRefresherState;
+class CEncryptionKeyRefresherStateFactory;
+NONSHARABLE_CLASS(CEncryptionKeyRefresher) : public CPhysicalLinkHelper
+	{
+	friend class TEncryptionKeyRefresherState;
+	friend class TEkrStateIdle;
+	friend class TEkrStateDisablingLPM;
+	friend class TEkrStateRefreshingKey;
+
+public:
+	static CEncryptionKeyRefresher* NewL(CPhysicalLinksManager& aLinkMgr, CPhysicalLink& aLink);
+	~CEncryptionKeyRefresher();
+
+	virtual void StartHelper();
+	
+	void EncryptionKeyRefreshComplete(TInt aError);
+
+private:
+	CEncryptionKeyRefresher(CPhysicalLinksManager& aLinkMgr, CPhysicalLink& aLink);
+	void ConstructL(); 
+	
+	virtual void TimerExpired();
+	virtual void HandleError(TInt aError);
+	virtual void EventReceived(TBTBasebandEventNotification& aEvent);
+  
+private:
+	CEncryptionKeyRefresherStateFactory*	iStateFactory;
+	const TEncryptionKeyRefresherState*		iState;            
+	};
+
+//--------------------------------------------------
+// STATE FACTORY
+//--------------------------------------------------
+
+/**
+   Factory for the EncryptionKeyRefresher states
+
+   The states are flyweight classes
+**/
+NONSHARABLE_CLASS(CEncryptionKeyRefresherStateFactory) : public CBase
+	{
+public:
+	static CEncryptionKeyRefresherStateFactory* NewL();
+
+	enum TEncryptionKeyRefresherStates
+		{
+		EIdle,
+		EDisablingLPM,
+		ERefreshingKey,
+		// Note that we don't need a state to enable LPM again
+		// as this will happen implicitly when we close our 
+		// proxy SAP.
+		// *** keep next one last ***
+		EEncryptionKeyRefresherMaxState,
+		};
+	
+	const TEncryptionKeyRefresherState& GetState(TEncryptionKeyRefresherStates aState) const;
+	TInt StateIndex(const TEncryptionKeyRefresherState* aState) const;
+	
+private:
+	CEncryptionKeyRefresherStateFactory();
+	void ConstructL();
+	TFixedArray<TEncryptionKeyRefresherState*, EEncryptionKeyRefresherMaxState> iStates;
+	};
+
+
+
+//--------------------------------------------------
+// STATES, base 
+//--------------------------------------------------
+
+NONSHARABLE_CLASS(TEncryptionKeyRefresherState)
+	{
+public:
+	TEncryptionKeyRefresherState(CEncryptionKeyRefresherStateFactory& aFactory);
+	
+	virtual void Enter(CEncryptionKeyRefresher& aContext) const;
+	virtual void Exit(CEncryptionKeyRefresher& aContext) const;
+
+	virtual void Start(CEncryptionKeyRefresher& aContext) const;
+	virtual void EventReceived(CEncryptionKeyRefresher& aContext, TBTBasebandEventNotification& aEvent) const;
+	virtual void Error(CEncryptionKeyRefresher& aContext, TInt aErr) const;
+	virtual void TimerExpired(CEncryptionKeyRefresher& aContext) const;
+	virtual void EncryptionKeyRefreshComplete(CEncryptionKeyRefresher& aContext, TInt aError) const;
+
+protected:
+	// Exits old state, sets the new state, and enters it.
+	void ChangeState(CEncryptionKeyRefresher& aContext, CEncryptionKeyRefresherStateFactory::TEncryptionKeyRefresherStates aState) const;
+	void PanicInState(TLinkPanic aPanic) const;
+	
+protected:
+	CEncryptionKeyRefresherStateFactory& iFactory;
+#ifdef __FLOG_ACTIVE
+	TBuf<48> iName;
+#endif
+	};
+
+
+//--------------------------------------------------
+// STATES 
+//--------------------------------------------------
+
+NONSHARABLE_CLASS(TEkrStateIdle) : public TEncryptionKeyRefresherState
+	{
+public:
+	TEkrStateIdle(CEncryptionKeyRefresherStateFactory& aFactory);
+
+	virtual void Enter(CEncryptionKeyRefresher& aContext) const;
+	virtual void Start(CEncryptionKeyRefresher& aContext) const;
+	};
+
+
+NONSHARABLE_CLASS(TEkrStateDisablingLPM) : public TEncryptionKeyRefresherState
+	{
+public:
+	TEkrStateDisablingLPM(CEncryptionKeyRefresherStateFactory& aFactory);
+
+	virtual void Enter(CEncryptionKeyRefresher& aContext) const;
+	virtual void EventReceived(CEncryptionKeyRefresher& aContext, TBTBasebandEventNotification& aEvent) const;
+	};
+
+NONSHARABLE_CLASS(TEkrStateRefreshingKey) : public TEncryptionKeyRefresherState
+	{
+public:
+	TEkrStateRefreshingKey(CEncryptionKeyRefresherStateFactory& aFactory);
+
+	virtual void Enter(CEncryptionKeyRefresher& aContext) const;
+	virtual void EncryptionKeyRefreshComplete(CEncryptionKeyRefresher& aContext, TInt aError) const;
+	};
+
+
+#ifdef __FLOG_ACTIVE
+#define STATENAME(x)  iName=_L(x)
+#else
+#define STATENAME(x)
+#endif
+
+
+#endif /* ENCRYPTIONKEYREFRESHHELPER_H */