// Copyright (c) 2005-2009 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:

//

// INCLUDE FILES

#include <e32base.h>

#include "EPos_CPosSubsessionRegistry.h"

#include "EPos_CPosSubSession.h"

// ================= MEMBER FUNCTIONS =======================

/**

* C++ default constructor.

*/

CPosSubsessionRegistry::CPosSubsessionRegistry()

    {

    }

/**

 * Symbian constructor

 */

void CPosSubsessionRegistry::ConstructL()

    {

    iRegistryIndex = CObjectIx::NewL();

    iRegistryContainerIndex = CObjectConIx::NewL();

    iRegistryContainer = iRegistryContainerIndex->CreateL();

    }

/**

 * Two-phased constructor

 *

 * @return a new instance of this class

 */

CPosSubsessionRegistry* CPosSubsessionRegistry::NewL()

    {

    CPosSubsessionRegistry* self = new (ELeave) CPosSubsessionRegistry;

    CleanupStack::PushL(self);

    self->ConstructL();

    CleanupStack::Pop(self);

    return self;

    }

/**

 * C++ destructor

 */

CPosSubsessionRegistry::~CPosSubsessionRegistry()

    {

    delete iRegistryIndex;

    delete iRegistryContainerIndex;

    iRegistryContainer = NULL; // deleted by index

    }

/**

 * Retreives the appropriate subsession.

 *

 * @param aHandle the subsession handle

 * @return a subsession

 */

CPosSubSession* CPosSubsessionRegistry::SubSessionFromHandleL(TUint aHandle)

    {

    return static_cast<CPosSubSession*> (iRegistryIndex->At(aHandle));

    }

/**

 * Retreives the appropriate subsession.

 *

 * @param aIndex the index in the list

 * @return a subsession, NULL if no session at specified index.

 */

CPosSubSession* CPosSubsessionRegistry::SubSessionFromIndex(TInt aIndex)

    {

    return static_cast<CPosSubSession*> ((*iRegistryIndex)[aIndex]);

    }

/**

 * Returns the maximum number of reference counting 

	* objects that the object index can hold before 

	* internal buffers need to be expanded.

 * @return the maximum number of reference counting objects.

 */

TInt CPosSubsessionRegistry::Count()

    {

    return iRegistryIndex->Count();

    }

/**

 * Closes a subsession.

 *

 * @param aHandle a handle to the subsession

 */

void CPosSubsessionRegistry::CloseSubSession(TUint aHandle)

    {

    if (iRegistryIndex->At(aHandle))

        {

        // Remove on a CObjectIx does close on the CObject

        iRegistryIndex->Remove(aHandle);

        }

    }

/**

 * Adds an object instance to the registry and

 * transfers object ownership to the registry.

 *

 * @param aSubSession an object instance

 * @return a registry handle to the object instance.

 */

TInt CPosSubsessionRegistry::AddInstanceL(CPosSubSession* aSubSession)

    {

    iRegistryContainer->AddL(aSubSession);

    return iRegistryIndex->AddL(aSubSession);

    }

// End of File