/*

* Copyright (c) 2006 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 CDiskSpaceReservationPlugIn class.

*

*/

#include "diskspacereservationplugin.h"

// Parameters

_LIT( KReserve, "reserve" );

_LIT( KFree, "free" );

// Free disk space requested for boot

const TInt KRequestedDiskSpaceForBoot = 0x23000; // 140 kB

// Debug macros

#ifdef _DEBUG

    #include <e32debug.h>

    #define TRACE_0( _s ) RDebug::Print( _L( _s ) );

    #define TRACE_1( _s, _t ) RDebug::Print( _L( _s ), _t );

    #define TRACE_IF_ERROR( _s, _e ) if ( _e != KErrNone ) RDebug::Print( _L( _s ), _e );

#else // _DEBUG

    #define TRACE_0( _s );

    #define TRACE_1( _s, _t );

    #define TRACE_IF_ERROR( _s, _e )

#endif // _DEBUG

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

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

// Constructor

//

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

//

CDiskSpaceReservationPlugIn* CDiskSpaceReservationPlugIn::NewL(

    TAny* aConstructionParameters )

    {

    CDiskSpaceReservationPlugIn* self =

        new( ELeave ) CDiskSpaceReservationPlugIn( aConstructionParameters );

    CleanupStack::PushL( self );

    self->ConstructL();

    CleanupStack::Pop( self );

    return self;

    }

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

// Destructor

//

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

//

CDiskSpaceReservationPlugIn::~CDiskSpaceReservationPlugIn()

    {

    TRACE_0( "CDiskSpaceReservationPlugIn::~CDiskSpaceReservationPlugIn" );

    iSharedData.Close();

    TRACE_0( "CDiskSpaceReservationPlugIn::~CDiskSpaceReservationPlugIn finished" );

    }

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

// CDiskSpaceReservationPlugIn::ExecuteL

//

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

//

void CDiskSpaceReservationPlugIn::ExecuteL(

    TRequestStatus& aStatus,

    const TDesC& aParams )

    {

    TRACE_1( "CDiskSpaceReservationPlugIn::ExecuteL( %S )", &aParams );

    aStatus = KRequestPending;

    TRequestStatus* status = &aStatus;

    if ( aParams == KReserve )

        {

        iSharedData.RequestFreeDiskSpace( KRequestedDiskSpaceForBoot );

        }

    else if ( aParams == KFree )

        {

        iSharedData.CancelFreeDiskSpaceRequest();

        }

    User::RequestComplete( status, KErrNone );

    TRACE_0( "CDiskSpaceReservationPlugIn::ExecuteL finished" );

    }

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

// CDiskSpaceReservationPlugIn::Cancel

//

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

//

void CDiskSpaceReservationPlugIn::Cancel()

    {

    // Nothing to do.

    }

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

// First phase constructor

//

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

//

CDiskSpaceReservationPlugIn::CDiskSpaceReservationPlugIn(

    TAny* aConstructionParameters )

  : CSystemStartupExtension( aConstructionParameters )

    {

    }

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

// Second phase constructor

//

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

//

void CDiskSpaceReservationPlugIn::ConstructL()

    {

    TInt errorCode = iSharedData.Connect();

    TRACE_IF_ERROR( "Failed to connect to SharedData", errorCode );

    User::LeaveIfError( errorCode );

    }