// Copyright (c) 1999-2009 Nokia Corporation and/or its subsidiary(-ies).

 // All rights reserved.

 // This component and the accompanying materials are made available

 // under the terms of "Eclipse Public License v1.0"

 // which accompanies this distribution, and is available

 // at the URL "http://www.eclipse.org/legal/epl-v10.html".

 //

 // Initial Contributors:

 // Nokia Corporation - initial contribution.

 //

 // Contributors:

 //

 // Description:

 // Definition of object index class

 // 

 //

 #ifndef __WSOBJIX_H__

 #define __WSOBJIX_H__

 #include <e32std.h>

 #include <e32base.h>

 class CWsObject;

 /**

 A simple structure to hold a CWsObject and the associated handle.

 @internalComponent

 @released

 */

 class TWsObject

 	{

 public:

 	enum

 		{

 		ESlotMask=0x0000FFFF,			//The handle on the client side uses these 16 bits to store the slot position

 		ECountMask=0x7FFF0000,			//These 15 bits are used to keep a unique number (the slot reuse count)

 		ETypeMask=ESlotMask,			//The handle on the server side uses these 16 bits to store the type of the object

 		ECountPosition=16,

 		ECountBits=15,

 		ECountInc=1<<ECountPosition,

 		ECountWrapAround=1<<ECountBits,

 		};

 public:

 	inline TWsObject(CWsObject* aObject,TInt aHandle);

 public:

 	CWsObject* iObject;

 	TUint iHandle;

 	};

 /**

 An array of CWsObject instances and their handles. 

 Each client session maintains a list of the objects it owns.

 Note that the first item in the iObjectArray array is a dummy item. This is because part of the 

 handle is used as an index in the array and we want to avoid index 0 because a null handle has a special

 meaning.

 @see CWsClient

 @internalComponent

 @released

 */

 class CWsObjectIx : public CBase

 	{

 public:

 	CWsObjectIx();

 	~CWsObjectIx();

 	void ConstructL();

 	TInt AddL(CWsObject* anObj);

 	void Remove(const TWsObject* aObject);

 	void Remove(CWsObject* anObj);

 	CWsObject* HandleToObject(TInt aHandle) const;

 	inline const CWsObject* At(TInt aPos) const;

 	const TWsObject* FirstObject() const;

 	TInt At(const CWsObject* anObj);

 	void Tidy();

 	TInt Count() const;		// Count of non NULL objects in the array

 	TInt Length() const;	// Length of array including empty slots

 private:

 	CArrayFixFlat<TWsObject> iObjectArray;

 	TInt iNewObjectCount;

 	};

 //

 // inlines			//

 //

 //

 // TWsObject

 //

 inline TWsObject::TWsObject(CWsObject* aObject,TInt aHandle) :iObject(aObject), iHandle(aHandle) {}

 //

 // CWsObjectIx

 //

 inline const CWsObject* CWsObjectIx::At(TInt aPos) const

 	{return iObjectArray[aPos].iObject;}

 #endif