multimediacommscontroller/mmcccontroller/src/mccresourceiterators.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 02 Feb 2010 01:04:58 +0200
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/*
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* Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:    
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*
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*/
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#include "mccresourceiterators.h"
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#include "mccresourcecontainer.h"
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#include "mccresourceitem.h"
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#include <mmf/server/mmfdatasink.h>
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#include <mmf/server/mmfdatasource.h>
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// ============================ MEMBER FUNCTIONS ===============================
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// CONTAINER ITERATOR
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// -----------------------------------------------------------------------------
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// TMccResourceContainerIterator::TMccResourceContainerIterator
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// -----------------------------------------------------------------------------
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//
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TMccResourceContainerIterator::TMccResourceContainerIterator( 
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    const RPointerArray<CMccResourceContainer>& aContainers ) : 
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    iContainers( aContainers ),
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    iCurrentIndex( 0 ),
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    iResourceParams( NULL ),
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    iEndpointId( 0 )
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    {
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    }
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// -----------------------------------------------------------------------------
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// TMccResourceContainerIterator::TMccResourceContainerIterator
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// -----------------------------------------------------------------------------
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//
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TMccResourceContainerIterator::TMccResourceContainerIterator( 
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    const RPointerArray<CMccResourceContainer>& aContainers,
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    TMccResourceParams& aResourceParams ) : 
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    iContainers( aContainers ),
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    iCurrentIndex( 0 ),
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    iResourceParams( &aResourceParams ),
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    iEndpointId( 0 )
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    {
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    }
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// -----------------------------------------------------------------------------
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// TMccResourceContainerIterator::TMccResourceContainerIterator
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// -----------------------------------------------------------------------------
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//
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TMccResourceContainerIterator::TMccResourceContainerIterator( 
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    const RPointerArray<CMccResourceContainer>& aContainers,
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    TUint32 aEndpointId ) : 
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    iContainers( aContainers ),
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    iCurrentIndex( 0 ),
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    iResourceParams( NULL ),
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    iEndpointId( aEndpointId )
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    {
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    }
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// -----------------------------------------------------------------------------
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// TMccResourceContainerIterator::Current
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// -----------------------------------------------------------------------------
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//
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TInt TMccResourceContainerIterator::Current()
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    {
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    TInt current = KErrNotFound;
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    if ( iContainers.Count() > 0 )
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        {
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        current = iCurrentIndex-1;
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        current = current < 0 ? 0 : current;
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        }
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    return current;
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    }
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// -----------------------------------------------------------------------------
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// TMccResourceContainerIterator::IsEof
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// -----------------------------------------------------------------------------
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//
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TBool TMccResourceContainerIterator::IsEof()
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    {
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    return iContainers.Count() == 0 || iCurrentIndex >= iContainers.Count();
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    }
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// -----------------------------------------------------------------------------
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// TMccResourceContainerIterator::Next
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// -----------------------------------------------------------------------------
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//
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TBool TMccResourceContainerIterator::Next( 
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    CMccResourceContainer*& aCandidate,
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    TMccIteratorMatchType aMatchType )
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    {
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    CMccResourceContainer* next = NULL;
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    TBool negation = aMatchType == ExactMatch ? EFalse : ETrue;
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    while( !next && !IsEof() )
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        {
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        CMccResourceContainer* container = iContainers[ iCurrentIndex ];
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        TBool condition = EFalse;
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        if ( iResourceParams )
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            {
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            if ( iResourceParams->iLinkId )
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                {
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                condition = ( container->LinkId() == iResourceParams->iLinkId );
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                }
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            else if ( iResourceParams->iStreamId )
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                {
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                condition = ( container->StreamId() == iResourceParams->iStreamId );
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                }
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            else if ( iEndpointId )
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                {
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                condition = ( container->FindResourceItem( iEndpointId ) != NULL );
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                }
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            else
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                {
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                }
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            }
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        else
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            {
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            condition = ETrue;
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            }
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        next = ( ( negation && !condition ) ||
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               ( !negation && condition ) ) ? container : NULL;
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        iCurrentIndex++;                            
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        }
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    aCandidate = next;
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    return aCandidate != NULL;
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    }
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// -----------------------------------------------------------------------------
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// TMccResourceContainerIterator::Delete
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// -----------------------------------------------------------------------------
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//
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TInt TMccResourceContainerIterator::Delete( RPointerArray<CMccResourceContainer>& aContainers )
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    {
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    TInt currentIndex = Current();
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    if ( currentIndex != KErrNotFound && currentIndex < aContainers.Count() )
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        {
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        delete aContainers[ currentIndex ];
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        aContainers.Remove( currentIndex );
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        iCurrentIndex = currentIndex;
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        }
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    return currentIndex;
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    }
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// -----------------------------------------------------------------------------
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// TMccResourceContainerIterator::Reset
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// -----------------------------------------------------------------------------
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//
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void TMccResourceContainerIterator::Reset()
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    {
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    iCurrentIndex = 0;
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    }
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// RESOURCE ITEM ITERATOR
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// -----------------------------------------------------------------------------
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// TMccResourceItemIterator::TMccResourceItemIterator
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// -----------------------------------------------------------------------------
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//
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TMccResourceItemIterator::TMccResourceItemIterator( 
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    const RPointerArray<CMccResourceItem>& aItems,
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    TBool aOnlyInternals,
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    TBool aOnlySinks,
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    TBool aOnlySources ) : 
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    iItems( aItems ),
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    iCurrentIndex( 0 ),
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    iOnlyInternals( aOnlyInternals ),
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    iOnlySinks( aOnlySinks ),
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    iOnlySources( aOnlySources ),
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    iUid( KNullUid ),
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    iResourceParams( NULL ),
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    iEndpointId( 0 )
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    {
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    }
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// -----------------------------------------------------------------------------
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// TMccResourceItemIterator::TMccResourceItemIterator
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// -----------------------------------------------------------------------------
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//
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TMccResourceItemIterator::TMccResourceItemIterator( 
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    const RPointerArray<CMccResourceItem>& aItems, 
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    TUid aUid ) : 
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    iItems( aItems ),
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    iCurrentIndex( 0 ),
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    iOnlyInternals( EFalse ),
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    iOnlySinks( EFalse ),
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    iOnlySources( EFalse ),
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    iUid( aUid ),
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    iResourceParams( NULL ),
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    iEndpointId( 0 )
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    {
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    }
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// -----------------------------------------------------------------------------
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// TMccResourceItemIterator::TMccResourceItemIterator
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// -----------------------------------------------------------------------------
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//
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TMccResourceItemIterator::TMccResourceItemIterator( 
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    const RPointerArray<CMccResourceItem>& aItems,
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    TUid aUid,
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    TMccResourceParams& aResourceParams ) :
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    iItems( aItems ),
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    iCurrentIndex( 0 ),
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    iOnlyInternals( EFalse ),
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    iOnlySinks( EFalse ),
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    iOnlySources( EFalse ),
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    iUid( aUid ),
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    iResourceParams( &aResourceParams ),
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    iEndpointId( 0 )    
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    {
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    }
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// -----------------------------------------------------------------------------
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// TMccResourceItemIterator::TMccResourceItemIterator
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// -----------------------------------------------------------------------------
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//
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TMccResourceItemIterator::TMccResourceItemIterator( 
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    const RPointerArray<CMccResourceItem>& aItems,
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    TMccResourceParams& aResourceParams ) : 
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    iItems( aItems ),
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    iCurrentIndex( 0 ),
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    iOnlyInternals( EFalse ),
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    iOnlySinks( EFalse ),
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    iOnlySources( EFalse ),
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    iUid( KNullUid ),
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    iResourceParams( &aResourceParams ),
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    iEndpointId( 0 )
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    {
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    }
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// -----------------------------------------------------------------------------
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// TMccResourceItemIterator::TMccResourceItemIterator
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// -----------------------------------------------------------------------------
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//
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TMccResourceItemIterator::TMccResourceItemIterator( 
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    const RPointerArray<CMccResourceItem>& aItems,
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    TUint32 aEndpointId ) : 
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    iItems( aItems ),
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    iCurrentIndex( 0 ),
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    iOnlyInternals( EFalse ),
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    iOnlySinks( EFalse ),
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    iOnlySources( EFalse ),
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    iUid( KNullUid ),
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    iResourceParams(NULL ),
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    iEndpointId( aEndpointId )
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    {
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    }
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// -----------------------------------------------------------------------------
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// TMccResourceItemIterator::Current
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// -----------------------------------------------------------------------------
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//
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TInt TMccResourceItemIterator::Current()
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    {
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    TInt current = KErrNotFound;
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    if ( iItems.Count() > 0 )
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        {
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        current = iCurrentIndex-1;
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        current = current < 0 ? 0 : current;
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        }
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    return current;
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    }
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// -----------------------------------------------------------------------------
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// TMccResourceItemIterator::IsEof
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// -----------------------------------------------------------------------------
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//
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TBool TMccResourceItemIterator::IsEof()
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    {
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    return iItems.Count() == 0 || iCurrentIndex >= iItems.Count();
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    }
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// -----------------------------------------------------------------------------
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// TMccResourceItemIterator::Next
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// -----------------------------------------------------------------------------
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//
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TBool TMccResourceItemIterator::Next( 
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    CMccResourceItem*& aCandidate,
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    TMccIteratorMatchType aMatchType )
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    {
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    CMccResourceItem* next = NULL;
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    TBool negation = aMatchType == ExactMatch ? EFalse : ETrue;
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    while( !next && !IsEof() )
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        {
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        CMccResourceItem* item = iItems[ iCurrentIndex ];
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        TBool condition = EFalse;
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        if ( iUid != KNullUid )
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            {
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            condition = ( item->IsSink() && item->Sink()->DataSinkType() == iUid ) ||
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                        ( item->IsSource() && item->Source()->DataSourceType() == iUid );
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            if ( condition && iResourceParams )
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                {
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                condition = item->MatchSession( iResourceParams->iSessionId );
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                }
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            }
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        else if ( iResourceParams )
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            {
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            condition = item->Match( *iResourceParams );
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            }
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        else if ( iEndpointId )
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            {
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            condition = iEndpointId == item->EndpointId();
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            }
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        else
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            {
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            condition = ( !iOnlySinks || item->IsSink() ) &&
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                        ( !iOnlySources || item->IsSource() ) &&
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                        ( !iOnlyInternals || item->IsInternal() );
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            }
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   334
            
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        next = ( ( negation && !condition ) ||
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               ( !negation && condition ) ) ? item : NULL;
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        iCurrentIndex++;                            
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        }
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    aCandidate = next;
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    return aCandidate != NULL;
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    }
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// -----------------------------------------------------------------------------
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// TMccResourceItemIterator::Reset
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// -----------------------------------------------------------------------------
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//
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void TMccResourceItemIterator::Reset()
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    {
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    iCurrentIndex = 0;
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    }
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   353
      
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   354
// End of file
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   355