// Copyright (c) 2006-2009 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:

//

/**

 @file

 @internalComponent

*/

#ifndef RMTPDEVICEDPSINGLETONS_H

#define RMTPDEVICEDPSINGLETONS_H

#include <e32def.h>

#include "mtpdebug.h"

class CMTPDeviceDataStore;

class CMTPDeviceDpConfigMgr;

/** 

Implements the MTP device data processor singletons reference manager.

@internalComponent

*/

class RMTPDeviceDpSingletons

    {

public:  

    RMTPDeviceDpSingletons();  

    void OpenL(MMTPDataProviderFramework& aFramework);

    void Close();

    CMTPDeviceDataStore& DeviceDataStore();

    CMTPDeviceDpConfigMgr& ConfigMgr();

    RArray<TUint>& PendingStorages();

private:

    /**

    Implements the singletons reference block.

    */

    class CSingletons : public CObject

        {

    public: 

        static CSingletons& OpenL(MMTPDataProviderFramework& aFramework);

        void Close();

    private:

        static CSingletons* NewL(MMTPDataProviderFramework& aFramework);

        virtual ~CSingletons();

        void ConstructL(MMTPDataProviderFramework& aFramework);

    public: // Owned

        /**

        FLOGGER debug trace member variable.

        */

        __FLOG_DECLARATION_MEMBER_MUTABLE;

        /**

        The device information data manager.

        */

        CMTPDeviceDataStore*    iDeviceDataStore;

        /**

        The device dp config manager.

        */

        CMTPDeviceDpConfigMgr*	iConfigMgr;

        /*

         * The pending storageids which is not enumerated.

         */

        RArray<TUint>         iPendingStorages;

    };

private: // Owned

    /**

    FLOGGER debug trace member variable.

    */

    __FLOG_DECLARATION_MEMBER_MUTABLE;

    /**

    The singletons reference block.

    */

    CSingletons*    iSingletons;

};

#endif // RMTPDEVICEDPSINGLETONS_H