sl@0: // Copyright (c) 1999-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: // All rights reserved.
sl@0: // This component and the accompanying materials are made available
sl@0: // under the terms of "Eclipse Public License v1.0"
sl@0: // which accompanies this distribution, and is available
sl@0: // at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: //
sl@0: // Initial Contributors:
sl@0: // Nokia Corporation - initial contribution.
sl@0: //
sl@0: // Contributors:
sl@0: //
sl@0: // Description:
sl@0: // Definition of object index class
sl@0: // 
sl@0: //
sl@0: 
sl@0: #ifndef __WSOBJIX_H__
sl@0: #define __WSOBJIX_H__
sl@0: 
sl@0: #include <e32std.h>
sl@0: #include <e32base.h>
sl@0: 
sl@0: class CWsObject;
sl@0: 
sl@0: /**
sl@0: A simple structure to hold a CWsObject and the associated handle.
sl@0: 
sl@0: @internalComponent
sl@0: @released
sl@0: */
sl@0: class TWsObject
sl@0: 	{
sl@0: public:
sl@0: 	enum
sl@0: 		{
sl@0: 		ESlotMask=0x0000FFFF,			//The handle on the client side uses these 16 bits to store the slot position
sl@0: 		ECountMask=0x7FFF0000,			//These 15 bits are used to keep a unique number (the slot reuse count)
sl@0: 		ETypeMask=ESlotMask,			//The handle on the server side uses these 16 bits to store the type of the object
sl@0: 		ECountPosition=16,
sl@0: 		ECountBits=15,
sl@0: 		ECountInc=1<<ECountPosition,
sl@0: 		ECountWrapAround=1<<ECountBits,
sl@0: 		};
sl@0: public:
sl@0: 	inline TWsObject(CWsObject* aObject,TInt aHandle);
sl@0: public:
sl@0: 	CWsObject* iObject;
sl@0: 	TUint iHandle;
sl@0: 	};
sl@0: 
sl@0: /**
sl@0: An array of CWsObject instances and their handles. 
sl@0: 
sl@0: Each client session maintains a list of the objects it owns.
sl@0: 
sl@0: Note that the first item in the iObjectArray array is a dummy item. This is because part of the 
sl@0: handle is used as an index in the array and we want to avoid index 0 because a null handle has a special
sl@0: meaning.
sl@0: 
sl@0: @see CWsClient
sl@0: @internalComponent
sl@0: @released
sl@0: */
sl@0: class CWsObjectIx : public CBase
sl@0: 	{
sl@0: public:
sl@0: 	CWsObjectIx();
sl@0: 	~CWsObjectIx();
sl@0: 	void ConstructL();
sl@0: 	TInt AddL(CWsObject* anObj);
sl@0: 	void Remove(const TWsObject* aObject);
sl@0: 	void Remove(CWsObject* anObj);
sl@0: 	CWsObject* HandleToObject(TInt aHandle) const;
sl@0: 	inline const CWsObject* At(TInt aPos) const;
sl@0: 	const TWsObject* FirstObject() const;
sl@0: 	TInt At(const CWsObject* anObj);
sl@0: 	void Tidy();
sl@0: 	TInt Count() const;		// Count of non NULL objects in the array
sl@0: 	TInt Length() const;	// Length of array including empty slots
sl@0: private:
sl@0: 	CArrayFixFlat<TWsObject> iObjectArray;
sl@0: 	TInt iNewObjectCount;
sl@0: 	};
sl@0: 
sl@0: 
sl@0: //
sl@0: // inlines			//
sl@0: //
sl@0: 
sl@0: //
sl@0: // TWsObject
sl@0: //
sl@0: inline TWsObject::TWsObject(CWsObject* aObject,TInt aHandle) :iObject(aObject), iHandle(aHandle) {}
sl@0: //
sl@0: // CWsObjectIx
sl@0: //
sl@0: inline const CWsObject* CWsObjectIx::At(TInt aPos) const
sl@0: 	{return iObjectArray[aPos].iObject;}
sl@0: #endif