/*

* Copyright (c) 2004-2006 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 CCommandProcessingEngine class.

*

*/

// INCLUDE FILES

#include "CommandProcessingEngine.h"

#include "CommandProcessingObserver.h"

#include "StartupAdaptationStubDebug.h"

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

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

// CCommandProcessingEngine::NewL

// Two-phased constructor.

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

//

CCommandProcessingEngine* CCommandProcessingEngine::NewL(

    MCommandProcessingObserver& aObserver )

    {

    CCommandProcessingEngine* self =

        new( ELeave ) CCommandProcessingEngine( aObserver );

    CleanupStack::PushL( self );

    self->ConstructL();

    CleanupStack::Pop();

    return self;

    }

// Destructor

CCommandProcessingEngine::~CCommandProcessingEngine()

    {

    Cancel();

    iTimer.Close();

    iCommands.Close();

    }

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

// CCommandProcessingEngine::ExecuteCommandL

//

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

//

void CCommandProcessingEngine::ExecuteCommandL(

    const TInt aCommandId,

    const TInt aDuration )

    {

    RDEBUG_2( _L( "CCommandProcessingEngine::ExecuteCommandL( %d, %d )." ), aCommandId, aDuration );

    TCommandInfo info;

    info.iCommandId = aCommandId;

    info.iDuration = aDuration;

    iCommands.AppendL( info );

    if ( !IsActive() ) // If already active, this happens at the end of RunL.

    {

        ActivateWithTimeout( aDuration );

    }

    RDEBUG( _L( "CCommandProcessingEngine::ExecuteCommandL finished." ) );

    }

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

// CCommandProcessingEngine::RunL

//

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

//

void CCommandProcessingEngine::RunL()

    {

    RDEBUG( _L( "CCommandProcessingEngine::RunL." ) );

    RDEBUG_1( _L( "Command count: %d." ), iCommands.Count() );

    __ASSERT_ALWAYS( iCommands.Count() > 0, User::Invariant() );

    const TInt& cmd = iCommands[0].iCommandId;

    RDEBUG_1( _L( "Processed command( %d )." ), cmd );

    iObserver.CommandProcessedL( cmd );

    iCommands.Remove( 0 );

    if ( iCommands.Count() > 0 ) // Check if there are more

        {                        // commands waiting to be processed.

        ActivateWithTimeout( iCommands[0].iDuration );

        }

    RDEBUG( _L( "CCommandProcessingEngine::RunL finished." ) );

    }

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

// CCommandProcessingEngine::RunError

//

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

//

TInt CCommandProcessingEngine::RunError( TInt aError )

    {

    RDEBUG_1( _L( "CCommandProcessingEngine::RunError( %d )." ), aError );

    aError = aError; //To prevent compiler warning.

    RDEBUG( _L( "CCommandProcessingEngine::RunError finished." ) );

    return KErrNone;

    }

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

// CCommandProcessingEngine::DoCancel

//

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

//

void CCommandProcessingEngine::DoCancel()

    {

    RDEBUG( _L( "CCommandProcessingEngine::DoCancel." ) );

    iTimer.Cancel();

    RDEBUG( _L( "CCommandProcessingEngine::DoCancel finished." ) );

    }

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

// CCommandProcessingEngine::CCommandProcessingEngine

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

// might leave.

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

//

CCommandProcessingEngine::CCommandProcessingEngine(

    MCommandProcessingObserver& aObserver )

  : CActive( EPriorityStandard ), iObserver( aObserver )

    {

    CActiveScheduler::Add( this );

    }

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

// CCommandProcessingEngine::ConstructL

// Symbian 2nd phase constructor can leave.

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

//

void CCommandProcessingEngine::ConstructL()

    {

    User::LeaveIfError( iTimer.CreateLocal() );

    }

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

// CCommandProcessingEngine::ActivateWithTimeout

//

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

//

void CCommandProcessingEngine::ActivateWithTimeout( const TInt aDuration )

    {

    RDEBUG( _L( "CCommandProcessingEngine::ActivateWithTimeout." ) );

    iTimer.After( iStatus, 1000 * aDuration );

    SetActive();

    RDEBUG( _L( "CCommandProcessingEngine::ActivateWithTimeout finished." ) );

    }

//  End of File