/*

* Copyright (c) 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:

* Implementation of CSsmDiskReserver class.

*

*/

#include "ssmmapperutilityinternalpskeys.h"

#include "ssmcustcmdsprivatepskeys.h"

#include "ssmdiskreserver.h"

#include "trace.h"

// Free disk space requested for boot

const TInt KRequestedDiskSpaceForBoot = 0x23000; // 140 kB

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

// ---------------------------------------------------------------------------

// CSsmDiskReserver::NewL

// ---------------------------------------------------------------------------

//

CSsmDiskReserver* CSsmDiskReserver::NewL()

	{

    FUNC_LOG;

    CSsmDiskReserver* self = new( ELeave ) CSsmDiskReserver();

    CleanupStack::PushL( self );

    self->ConstructL();

    CleanupStack::Pop( self );

    return self;

	}

// ---------------------------------------------------------------------------

// CSsmDiskReserver::~CSsmDiskReserver

// ---------------------------------------------------------------------------

//

CSsmDiskReserver::~CSsmDiskReserver()

    {

    FUNC_LOG;

    iProperty.Close();

    iSharedData.Close();

    }

// ---------------------------------------------------------------------------

// CSsmDiskReserver::ConstructL

// ---------------------------------------------------------------------------

//

void CSsmDiskReserver::ConstructL()

    {

    FUNC_LOG;

    // Attach to KDiskReserveKey

    TInt err = iProperty.Attach( KPSStarterUid, KDiskReserveKey );

    ERROR( err, "Error attaching KDiskReserveKey" );

    User::LeaveIfError( err );

    // Reserve disk space

    err = iSharedData.Connect();

    ERROR( err, "Failed to connect to SharedData" );

    User::LeaveIfError( err );

    iSharedData.RequestFreeDiskSpace( KRequestedDiskSpaceForBoot );

    }

// ---------------------------------------------------------------------------

// CSsmDiskReserver::WaitStartupFinished

// ---------------------------------------------------------------------------

//

void CSsmDiskReserver::WaitStartupFinished()

    {

    FUNC_LOG;

    // Wait for startup to finish

    TRequestStatus request;

    INFO( "Wait for KDiskReserveKey" );

    iProperty.Subscribe( request );

    User::WaitForRequest( request );

    INFO( "KDiskReserveKey changed" );

    // Release disk space reservation

    iSharedData.CancelFreeDiskSpaceRequest();

    }