// 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

*/

#include <e32std.h>

#include "cmtpdevicedatastore.h"

#include "cmtpdevicedpconfigmgr.h"

#include "cmtpstoragewatcher.h"

#include "rmtpdevicedpsingletons.h"

#include "OstTraceDefinitions.h"

#ifdef OST_TRACE_COMPILER_IN_USE

#include "rmtpdevicedpsingletonsTraces.h"

#endif

// Class constants.

/**

Constructor.

*/

RMTPDeviceDpSingletons::RMTPDeviceDpSingletons() :

    iSingletons(NULL)

    {

    }

/**

Opens the singletons reference.

*/

void RMTPDeviceDpSingletons::OpenL(MMTPDataProviderFramework& aFramework)

    {

    iSingletons = &CSingletons::OpenL(aFramework);

    }

/**

Closes the singletons reference.

*/

void RMTPDeviceDpSingletons::Close()

    {

    OstTraceFunctionEntry0( RMTPDEVICEDPSINGLETONS_CLOSE_ENTRY );

    if (iSingletons)

        {

        iSingletons->Close();

        iSingletons = NULL;

        }

    OstTraceFunctionExit0( RMTPDEVICEDPSINGLETONS_CLOSE_EXIT );

    }

/**

Provides a handle to the MTP device data provider's device information data 

store singleton.

@return The device information data store singleton.

*/

CMTPDeviceDataStore& RMTPDeviceDpSingletons::DeviceDataStore()

    {

    OstTraceFunctionEntry0( RMTPDEVICEDPSINGLETONS_DEVICEDATASTORE_ENTRY );

    __ASSERT_DEBUG(iSingletons, User::Invariant());

    __ASSERT_DEBUG(iSingletons->iDeviceDataStore, User::Invariant());

    OstTraceFunctionExit0( RMTPDEVICEDPSINGLETONS_DEVICEDATASTORE_EXIT );

    return *iSingletons->iDeviceDataStore;

    }

/**

Provides a handle to the MTP device data provider's config manager singleton.

@return The device config manager singleton.

*/

CMTPDeviceDpConfigMgr& RMTPDeviceDpSingletons::ConfigMgr()

	{

    OstTraceFunctionEntry0( RMTPDEVICEDPSINGLETONS_CONFIGMGR_ENTRY );

    __ASSERT_DEBUG(iSingletons, User::Invariant());

    __ASSERT_DEBUG(iSingletons->iConfigMgr, User::Invariant());

    OstTraceFunctionExit0( RMTPDEVICEDPSINGLETONS_CONFIGMGR_EXIT );

    return *iSingletons->iConfigMgr;

	}

RMTPDeviceDpSingletons::CSingletons* RMTPDeviceDpSingletons::CSingletons::NewL(MMTPDataProviderFramework& aFramework)

    {

    OstTraceFunctionEntry0( CSINGLETONS_NEWL_ENTRY );

    CSingletons* self(new(ELeave) CSingletons());

    CleanupStack::PushL(self);

    self->ConstructL(aFramework);

    CleanupStack::Pop(self);

    OstTraceFunctionExit0( CSINGLETONS_NEWL_EXIT );

    return self;

    }

RMTPDeviceDpSingletons::CSingletons& RMTPDeviceDpSingletons::CSingletons::OpenL(MMTPDataProviderFramework& aFramework)

    {

    OstTraceFunctionEntry0( CSINGLETONS_OPENL_ENTRY );

    CSingletons* self(reinterpret_cast<CSingletons*>(Dll::Tls()));

    if (!self)

        {

        self = CSingletons::NewL(aFramework);

        Dll::SetTls(reinterpret_cast<TAny*>(self));

        }

    else

        {        

        self->Inc();

        }

    OstTraceFunctionExit0( CSINGLETONS_OPENL_EXIT );

    return *self;

    }

void RMTPDeviceDpSingletons::CSingletons::Close()

    {

    CSingletons* self(reinterpret_cast<CSingletons*>(Dll::Tls()));

    if (self)

        {

        OstTraceFunctionEntry0( RMTPDEVICEDPSINGLETONS_CSINGLETONS_CLOSE_ENTRY );

        self->Dec();

        if (self->AccessCount() == 0)

            {

            OstTraceFunctionExit0( RMTPDEVICEDPSINGLETONS_CSINGLETONS_CLOSE_EXIT );

            delete self;

            Dll::SetTls(NULL);

            }

        else

            {

            OstTraceFunctionExit0( DUP1_RMTPDEVICEDPSINGLETONS_CSINGLETONS_CLOSE_EXIT );

            }

        }

    }

RMTPDeviceDpSingletons::CSingletons::~CSingletons()

    {

    OstTraceFunctionEntry0( CSINGLETONS_CSINGLETONS_ENTRY );

    delete iConfigMgr;

    delete iDeviceDataStore;

    iPendingStorages.Close();

    OstTraceFunctionExit0( CSINGLETONS_CSINGLETONS_EXIT );

    }

void RMTPDeviceDpSingletons::CSingletons::ConstructL(MMTPDataProviderFramework& aFramework)

    {

    OstTraceFunctionEntry0( CSINGLETONS_CONSTRUCTL_ENTRY );

    iDeviceDataStore = CMTPDeviceDataStore::NewL();

    iConfigMgr = CMTPDeviceDpConfigMgr::NewL(aFramework);

    OstTraceFunctionExit0( CSINGLETONS_CONSTRUCTL_EXIT );

    }

RArray<TUint>& RMTPDeviceDpSingletons::PendingStorages()

	{

    OstTraceFunctionEntry0( RMTPDEVICEDPSINGLETONS_PENDINGSTORAGES_ENTRY );

    __ASSERT_DEBUG(iSingletons, User::Invariant());

    OstTraceFunctionExit0( RMTPDEVICEDPSINGLETONS_PENDINGSTORAGES_EXIT );

    return iSingletons->iPendingStorages;

	}