mmappcomponents/mmmtpdataprovider/mmmtpdprequestprocessor/src/csetobjectreferences.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Thu, 17 Dec 2009 08:55:47 +0200
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/*
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* Copyright (c) 2009 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:  Implement the operation: SetObjectReferences
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*
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*/
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#include <mtp/cmtptypearray.h>
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#include <mtp/mmtpobjectmgr.h>
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#include <mtp/mmtpdataproviderframework.h>
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#include <mtp/mmtpreferencemgr.h>
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#include "csetobjectreferences.h"
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#include "tmmmtpdppanic.h"
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#include "mmmtpdplogger.h"
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#include "cmmmtpdpmetadataaccesswrapper.h"
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#include "mmmtpdputility.h"
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#include "mmmtpdpconfig.h"
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// -----------------------------------------------------------------------------
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// Verification data for the SetReferences request
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// -----------------------------------------------------------------------------
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//
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const TMTPRequestElementInfo KMTPSetObjectReferencesPolicy[] =
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    {
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        {
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        TMTPTypeRequest::ERequestParameter1,
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        EMTPElementTypeObjectHandle,
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        EMTPElementAttrNone,
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        0,
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        0,
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        0
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        }
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    };
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// -----------------------------------------------------------------------------
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// CSetObjectReferences::NewL
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// Two-phase construction method
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// -----------------------------------------------------------------------------
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//
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EXPORT_C MMmRequestProcessor* CSetObjectReferences::NewL( MMTPDataProviderFramework& aFramework,
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    MMTPConnection& aConnection,
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    MMmMtpDpConfig& aDpConfig )
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    {
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    CSetObjectReferences* self = new ( ELeave ) CSetObjectReferences( aFramework,
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        aConnection,
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        aDpConfig );
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    CleanupStack::PushL( self );
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    self->ConstructL();
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    CleanupStack::Pop( self );
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    return self;
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    }
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// -----------------------------------------------------------------------------
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// CSetObjectReferences::ConstructL
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// Two-phase construction method
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// -----------------------------------------------------------------------------
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//
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void CSetObjectReferences::ConstructL()
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    {
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    SetPSStatus();
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    }
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// -----------------------------------------------------------------------------
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// CSetObjectReferences::~CSetObjectReferences
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// Destructor
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// -----------------------------------------------------------------------------
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//
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EXPORT_C CSetObjectReferences::~CSetObjectReferences()
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    {
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    delete iReferences;
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    delete iReferenceSuids;
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    }
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// -----------------------------------------------------------------------------
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// CSetObjectReferences::CSetObjectReferences
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// Standard c++ constructor
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// -----------------------------------------------------------------------------
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//
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EXPORT_C CSetObjectReferences::CSetObjectReferences(
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    MMTPDataProviderFramework& aFramework,
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    MMTPConnection& aConnection,
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    MMmMtpDpConfig& aDpConfig ) :
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    CRequestProcessor(
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        aFramework,
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        aConnection,
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        sizeof( KMTPSetObjectReferencesPolicy )/sizeof( TMTPRequestElementInfo ),
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        KMTPSetObjectReferencesPolicy ),
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    iDpConfig( aDpConfig )
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    {
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    PRINT( _L( "Operation: SetObjectReferences(0x9811)" ) );
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    }
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// -----------------------------------------------------------------------------
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// CSetObjectReferences::DoSetObjectReferencesL
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// set references to DB
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// -----------------------------------------------------------------------------
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//
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EXPORT_C void CSetObjectReferences::DoSetObjectReferencesL( CMmMtpDpMetadataAccessWrapper& aWrapper,
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    TUint16 aObjectFormat,
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    const TDesC& aSrcFileName,
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    CDesCArray& aRefFileArray )
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    {
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    // do nothing, do special thing by inheriting
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    }
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   117
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// -----------------------------------------------------------------------------
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// CSetObjectReferences::ServiceL
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// SetReferences request handler
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// start receiving reference data from the initiator
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// -----------------------------------------------------------------------------
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//
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EXPORT_C void CSetObjectReferences::ServiceL()
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    {
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    PRINT( _L( "MM MTP => CSetObjectReferences::ServiceL" ) );
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    delete iReferences;
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    iReferences = NULL;
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    iReferences = CMTPTypeArray::NewL( EMTPTypeAUINT32 );
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    ReceiveDataL( *iReferences );
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    PRINT( _L( "MM MTP <= CSetObjectReferences::ServiceL" ) );
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    }
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// -----------------------------------------------------------------------------
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// CSetObjectReferences::DoHandleResponsePhaseL
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// Apply the references to the specified object
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// -----------------------------------------------------------------------------
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//
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EXPORT_C TBool CSetObjectReferences::DoHandleResponsePhaseL()
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    {
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    PRINT( _L("MM MTP => CSetObjectReferences::DoHandleResponsePhaseL" ) );
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   142
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    delete iReferenceSuids;
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    iReferenceSuids = NULL;
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    iReferenceSuids = new ( ELeave ) CDesCArrayFlat( 3 );
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   146
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    if ( !VerifyReferenceHandlesL() )
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        {
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        SendResponseL( EMTPRespCodeInvalidObjectReference );
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        }
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    else
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        {
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        MMTPReferenceMgr& referenceMgr = iFramework.ReferenceMgr();
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        TUint32 objectHandle = Request().Uint32( TMTPTypeRequest::ERequestParameter1 );
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        PRINT1( _L( "MM MTP <>CSetObjectReferences::DoHandleResponsePhaseL objectHandle = 0x%x" ), objectHandle );
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        referenceMgr.SetReferencesL( TMTPTypeUint32( objectHandle ),
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            *iReferences );
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   158
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        CMTPObjectMetaData* object = CMTPObjectMetaData::NewLC(); // + object
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        iFramework.ObjectMgr().ObjectL( objectHandle, *object );
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        PRINT1( _L( "MM MTP <> object file name is %S" ), &(object->DesC( CMTPObjectMetaData::ESuid ) ) );
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        DoSetObjectReferencesL( iDpConfig.GetWrapperL(),
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            object->Uint( CMTPObjectMetaData::EFormatCode ),
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            object->DesC( CMTPObjectMetaData::ESuid ),
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            *iReferenceSuids );
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   166
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        CleanupStack::PopAndDestroy( object ); // - object
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   168
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        SendResponseL( EMTPRespCodeOK );
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   170
        }
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    PRINT( _L("MM MTP <= CSetObjectReferences::DoHandleResponsePhaseL" ) );
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    return EFalse;
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   173
    }
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   174
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// -----------------------------------------------------------------------------
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   176
// CSetObjectReferences::VerifyReferenceHandlesL
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// Verify if the references are valid handles to objects
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// -----------------------------------------------------------------------------
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//
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TBool CSetObjectReferences::VerifyReferenceHandlesL() const
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    {
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   182
    PRINT( _L( "MM MTP => CSetObjectReferences::VerifyReferenceHandlesL" ) );
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   183
    __ASSERT_DEBUG( iReferences, Panic( EMmMTPDpReferencesNull ) );
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   184
    TBool result = ETrue;
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   185
    TInt count = iReferences->NumElements();
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   186
    PRINT1( _L( "MM MTP <> CSetObjectReferences::VerifyReferenceHandlesL count = %d" ), count );
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   187
    CMTPObjectMetaData* object( CMTPObjectMetaData::NewLC() ); // + object
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   188
    MMTPObjectMgr& objectMgr = iFramework.ObjectMgr();
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   189
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   190
    for ( TInt i = 0; i < count; i++ )
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   191
        {
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   192
        TMTPTypeUint32 handle;
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   193
        iReferences->ElementL( i, handle );
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   194
        if ( !objectMgr.ObjectL( handle, *object ) )
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   195
            {
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   196
            result = EFalse;
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   197
            break;
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   198
            }
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   199
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        iReferenceSuids->AppendL( object->DesC( CMTPObjectMetaData::ESuid ) );
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   201
        }
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   202
    CleanupStack::PopAndDestroy( object ); // - object
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   203
    PRINT( _L( "MM MTP <= CSetObjectReferences::VerifyReferenceHandlesL" ) );
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   204
    return result;
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   205
    }
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   206
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// -----------------------------------------------------------------------------
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// CSetObjectReferences::HasDataphase
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// Derived from CRequestProcessor, can not be neglected
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// -----------------------------------------------------------------------------
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   211
//
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   212
EXPORT_C TBool CSetObjectReferences::HasDataphase() const
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   213
    {
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    return ETrue;
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   215
    }
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   216
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// end of file