/*+
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* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). +
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* All rights reserved.+
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* This component and the accompanying materials are made available+
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* under the terms of "Eclipse Public License v1.0"+
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* which accompanies this distribution, and is available+
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".+
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*+
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* Initial Contributors:+
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* Nokia Corporation - initial contribution.+
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*+
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* Contributors:+
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*+
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* Description:+
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*+
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*/+
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+
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#ifndef MEMSPYDRIVERPANDS_H+
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#define MEMSPYDRIVERPANDS_H+
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+
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// System includes+
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#include <e32property.h>+
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#include <kernel.h>+
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#include <kern_priv.h>+
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#include <sproperty.h>+
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+
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// User includes+
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#include "MemSpyDriverLog.h"+
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#include <memspy/driver/memspydriverpanics.h>+
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+
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+
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/** +
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 * Spoof TProperty, the kernel-side object that encapsulates all P&S keys+
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 */+
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class TMemSpyProperty +
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	{+
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public:+
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	// The property attributes.+
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	// Meaningful for defined properties only (ie. iType != RProperty::ETypeLimit)+
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	// Constant while the property is defined+
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	inline TUint32 Owner() { return iOwner; }+
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+
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public:+
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	const TUint		iCategory;+
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	const TUint		iKey;+
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+
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public:+
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	// iType == RProperty::ETypeLimit means not defined+
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	TUint8	iType;	// updates require the system lock AND the feature lock +
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					// reads require only one of them+
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	// The property attributes.+
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	// Meaningful for defined properties only (ie. iType != RProperty::ETypeLimit)+
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	// Constant while the property is defined+
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	TUint8	iAttr;+
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	TCompiledSecurityPolicy iReadPolicy;+
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	TCompiledSecurityPolicy iWritePolicy;+
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	TUint32	iOwner;+
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+
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	TUint		iRefCount;	// protected by the feature lock+
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	TProperty*	iNext;		// hash table collision list link -+
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							//		protected by the feature lock+
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+
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	class TBuf+
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		{ // Viraiable-size buffer for  byte array property values+
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	public:+
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		static TBuf* New(TInt aSize);+
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+
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		TUint16	iBufSize;		// buffer size - constant+
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		TUint16	iSize;			// actual property size - protected by the system lock+
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		TUint8	iBytes[1];		// byte array - protected by the system lock+
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		};+
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+
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	// The property value+
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	// Meaningful for defined properties only (ie. iType != RProperty::ETypeLimit)+
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	union	// the value (ie. iValue or iBuf->iBytes) is protected by the system lock+
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		{ +
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		TBuf*	iBuf;   // pointer updates of a defined property (eg. buffer +
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						//   reallocation) require the system AND the feature locks;+
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						// pointer reads (eg to get/set byte values) require any of them+
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		TInt	iValue;+
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		};+
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+
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	// Called with system or feature locked+
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	TInt Size()+
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		{+
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		return iBuf ? iBuf->iSize : 0;+
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		}+
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+
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	// Called with system or feature locked+
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	TUint8* Buf()+
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		{+
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		return iBuf ? iBuf->iBytes : NULL;+
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		}+
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+
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	SDblQue	iPendingQue;	// pending subscriptions - protected by the system lock+
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	};+
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+
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+
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+
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/**+
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 * Spoof of DPropertyRef - the kernel-side object that represents user-side P&S property keys+
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 */+
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class DMemSpyPropertyRef : public DObject+
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	{+
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public:+
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	TMemSpyProperty*		iProp;+
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	TRequestStatus*			iStatus;+
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	DThread*				iClient;+
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	TPropertySubsRequest	iSubs;+
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	};+
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+
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+
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#endif+
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