/*

* Copyright (c) 2004 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:  This module contains the implementation of CCbsDiskSpaceMonitor class 

*                member functions.    

*

*/

// INCLUDE FILES

#include <e32property.h>

#include "CCbsDiskSpaceMonitor.h"

#include <UikonInternalPSKeys.h>    // KPSUidUikon, KUikFFSFreeLevel

#include "CCbsDbImp.H"

#include "CbsLogger.h"

// CONSTANTS

// Value to receive from critical level notification for "OK"

const TInt KCriticalLevelDiskOk = 0;

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

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

// CCbsDiskSpaceMonitor::CCbsDiskSpaceMonitor

// C++ default constructor can NOT contain any code, that

// might leave.

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

//

CCbsDiskSpaceMonitor::CCbsDiskSpaceMonitor( CCbsDbImp& aDbImp )

    : CActive( EPriorityStandard ),

    iDbImp( aDbImp )

    {

    }

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

// CCbsDiskSpaceMonitor::ConstructL

// Symbian 2nd phase constructor can leave.

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

//

void CCbsDiskSpaceMonitor::ConstructL()

    {

    CBSLOGSTRING("CBSSERVER: >>> CCbsDiskSpaceMonitor::ConstructL()");

    CActiveScheduler::Add( this );

    // Attach to disk space property

    iProperty.Attach( KPSUidUikon, KUikFFSFreeLevel );

    CBSLOGSTRING("CBSSERVER: <<< CCbsDiskSpaceMonitor::ConstructL()");

    }

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

// CCbsDiskSpaceMonitor::NewL

// Two-phased constructor.

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

//

CCbsDiskSpaceMonitor* CCbsDiskSpaceMonitor::NewL( CCbsDbImp& aDbImp )

    {

    CBSLOGSTRING("CBSSERVER: >>> CCbsDiskSpaceMonitor::NewL()");

    CCbsDiskSpaceMonitor* self = 

        new ( ELeave ) CCbsDiskSpaceMonitor( aDbImp );

    CleanupStack::PushL( self );

    self->ConstructL();

    CleanupStack::Pop();

    CBSLOGSTRING("CBSSERVER: <<< CCbsDiskSpaceMonitor::NewL(), returning self.");

    return self;

    }

// Destructor

CCbsDiskSpaceMonitor::~CCbsDiskSpaceMonitor()

    {

    CBSLOGSTRING("CBSSERVER: >>> CCbsDiskSpaceMonitor::~CCbsDiskSpaceMonitor()");

    Cancel();

	iProperty.Close();

	CBSLOGSTRING("CBSSERVER: <<< CCbsDiskSpaceMonitor::~CCbsDiskSpaceMonitor()");

    }

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

// CCbsDiskSpaceMonitor::IssueRequest

// Requests that we are notified when the system state changes.

// (other items were commented in a header).

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

//

void CCbsDiskSpaceMonitor::IssueRequest() 

    {

    CBSLOGSTRING("CBSSERVER: >>> CCbsDiskSpaceMonitor::IssueRequest()");

    if ( !IsActive() )

        {        

        // Subscribe again

    	iProperty.Subscribe( iStatus );

	    SetActive();

	    CBSLOGSTRING("CBSSERVER: CCbsDiskSpaceMonitor::IssueRequest(): New Subscribe() set active.");

        }

    CBSLOGSTRING("CBSSERVER: <<< CCbsDiskSpaceMonitor::IssueRequest()");

    }

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

// CCbsDiskSpaceMonitor::RunL

// Becomes active when the system state changes.

// (other items were commented in a header).

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

//

void CCbsDiskSpaceMonitor::RunL()

    {

    CBSLOGSTRING2("CBSSERVER: >>> CCbsDiskSpaceMonitor::RunL(): iStatus: %d", iStatus.Int() );

    if ( iStatus == KErrNone )

        {        

        // Property updated, get new value

    	TInt state( 0 );

    	TInt error( KErrNone );

    	error = iProperty.Get( state );

    	CBSLOGSTRING2("CBSSERVER: CCbsDiskSpaceMonitor::RunL(): property.Get() error: %d", error );

    	CBSLOGSTRING2("CBSSERVER: CCbsDiskSpaceMonitor::RunL(): property.Get() state: %d", state );

    	// If we received DISK_SPACE_OK, try to create the database

        // components.

        if ( state == KCriticalLevelDiskOk )

            {

            CBSLOGSTRING("CBSSERVER: CCbsDiskSpaceMonitor::RunL(): Calling CreateComponentsL()..." );

            iDbImp.CreateComponentsL();

            CBSLOGSTRING("CBSSERVER: CCbsDiskSpaceMonitor::RunL(): CreateComponentsL() finished." );

            }

        // To prevent ARMV5 compiler error

        if ( error )

            {

            error = KErrNone;

            }            

        }

    CBSLOGSTRING("CBSSERVER: <<< CCbsDiskSpaceMonitor::RunL()");        

    }

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

// CCbsDiskSpaceMonitor::DoCancel

// Cancels an outstanding Subscribe request.  

// (other items were commented in a header).

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

//

void CCbsDiskSpaceMonitor::DoCancel()

    {

    CBSLOGSTRING("CBSSERVER: >>> CCbsDiskSpaceMonitor::DoCancel()");

    iProperty.Cancel();  

    CBSLOGSTRING("CBSSERVER: <<< CCbsDiskSpaceMonitor::DoCancel()"); 

    }

// ========================== OTHER EXPORTED FUNCTIONS =========================

//  End of File