mpxplugins/serviceplugins/collectionplugins/mpxsqlitedbcommon/src/mpxdbactivetask.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Thu, 17 Dec 2009 08:45:05 +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:  Active object to split up long running db tasks
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*
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*/
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// INCLUDE FILES
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#include <e32base.h>
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#include <mpxlog.h>
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#include "mpxdbactivetask.h"
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// ============================ MEMBER FUNCTIONS =============================
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// ---------------------------------------------------------------------------
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// Constructor
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// ---------------------------------------------------------------------------
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//
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CMPXDbActiveTask::CMPXDbActiveTask( MMPXDbActiveTaskObserver& aObserver ) :
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    CActive( CActive::EPriorityStandard ),
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    iObserver( aObserver )
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    {
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    MPX_FUNC("CMPXDbActiveTask::CMPXDbActiveTask");
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    CActiveScheduler::Add( this );
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    }
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// ---------------------------------------------------------------------------
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// 2nd-phase constructor
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// ---------------------------------------------------------------------------
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//
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void CMPXDbActiveTask::ConstructL()
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    {
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    MPX_FUNC("CMPXDbActiveTask::ConstructL");
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    }
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// ---------------------------------------------------------------------------
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// Two-Phase Constructor
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// ---------------------------------------------------------------------------
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//
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EXPORT_C CMPXDbActiveTask* CMPXDbActiveTask::NewL( MMPXDbActiveTaskObserver& aObserver )
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    {
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    MPX_FUNC("CMPXDbActiveTask::NewL");
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    CMPXDbActiveTask* self = new(ELeave) CMPXDbActiveTask( aObserver);
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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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// Destructor
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// ---------------------------------------------------------------------------
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//
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EXPORT_C CMPXDbActiveTask::~CMPXDbActiveTask()
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    {
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    MPX_FUNC("CMPXDbActiveTask::~CMPXDbActiveTask");
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    Cancel();
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    delete iChangeMessages;
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    delete iCurCommand;
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    }
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// ---------------------------------------------------------------------------
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// Start the operation
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// ---------------------------------------------------------------------------
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//
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EXPORT_C void CMPXDbActiveTask::StartL( TMPXCommandId aTask, const CMPXCommand& aCommand )
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    {
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    delete iCurCommand;
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    iCurCommand = NULL;
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    iCurCommand = CMPXMedia::NewL( aCommand );
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    iCurTask = aTask;
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    iCurStep = 0;
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    delete iChangeMessages;
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    iChangeMessages = NULL;
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    iChangeMessages = CMPXMessageArray::NewL();
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    iCurVisibleChange = ENotVisibile;
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    // Start the AO
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    iStatus = KRequestPending;
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    SetActive();
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    TRequestStatus* status = &iStatus;
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    User::RequestComplete( status, KErrNone );
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    }
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// ---------------------------------------------------------------------------
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// Get the current step
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// ---------------------------------------------------------------------------
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//
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EXPORT_C TInt CMPXDbActiveTask::GetStep()
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    {
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    MPX_FUNC("CMPXDbActiveTask::GetStep");
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    return iCurStep;
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    }
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// ---------------------------------------------------------------------------
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// Get the current task
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// ---------------------------------------------------------------------------
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//
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EXPORT_C TMPXCommandId CMPXDbActiveTask::GetTask()
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    {
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    MPX_FUNC("CMPXDbActiveTask::GetTask");
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    return iCurTask;
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    }
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parents:
diff changeset
   117
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// ---------------------------------------------------------------------------
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// Get the current media
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// ---------------------------------------------------------------------------
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//
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EXPORT_C CMPXMedia& CMPXDbActiveTask::GetCommand()
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    {
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    MPX_FUNC("CMPXDbActiveTask::GetCommand");
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    return *iCurCommand;
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   126
    }
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// ---------------------------------------------------------------------------
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// Get the current change messages
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// ---------------------------------------------------------------------------
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//
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EXPORT_C CMPXMessageArray& CMPXDbActiveTask::GetChangeMessages()
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    {
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    MPX_FUNC("CMPXDbActiveTask::GetChangeMessages");
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    return *iChangeMessages;
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   136
    }
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   137
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// ---------------------------------------------------------------------------
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// Set the visible change flag
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// ---------------------------------------------------------------------------
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//
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EXPORT_C void CMPXDbActiveTask::SetVisibleChange( TChangeVisibility aChange )
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   143
    {
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   144
    MPX_FUNC("CMPXDbActiveTask::SetVisibleChange");
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    iCurVisibleChange = aChange;
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   146
    }
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   147
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// ---------------------------------------------------------------------------
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// Get the visible change flag
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// ---------------------------------------------------------------------------
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//
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EXPORT_C CMPXDbActiveTask::TChangeVisibility CMPXDbActiveTask::GetVisibleChange()
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   153
    {
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   154
    MPX_FUNC("CMPXDbActiveTask::GetVisibleChange");
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   155
    return iCurVisibleChange;
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   156
    }
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parents:
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   157
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   158
// ---------------------------------------------------------------------------
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   159
// From CActive
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   160
// ---------------------------------------------------------------------------
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   161
//
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   162
EXPORT_C void CMPXDbActiveTask::RunL()
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parents:
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   163
    {
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   164
    MPX_FUNC("CMPXDbActiveTask::RunL");
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parents:
diff changeset
   165
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   166
    // ETrue is done, EFalse is more to do
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   167
    //
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   168
    if( iObserver.HandleStepL() )
ff3acec5bc43 Revision: 200949
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parents:
diff changeset
   169
        {
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   170
        iObserver.HandleOperationCompleted( KErrNone );
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diff changeset
   171
        delete iCurCommand;
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   172
        iCurCommand = NULL;
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   173
        delete iChangeMessages;
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parents:
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   174
        iChangeMessages = NULL;
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   175
        }
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   176
    else
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parents:
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   177
        {
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   178
        ++iCurStep;
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   179
        iStatus = KRequestPending;
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   180
        SetActive();
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   181
        TRequestStatus* status = &iStatus;
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parents:
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   182
        User::RequestComplete( status, KErrNone );
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parents:
diff changeset
   183
        }
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parents:
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   184
    }
ff3acec5bc43 Revision: 200949
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parents:
diff changeset
   185
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   186
// ---------------------------------------------------------------------------
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   187
// From CActive
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   188
// ---------------------------------------------------------------------------
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   189
//
ff3acec5bc43 Revision: 200949
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diff changeset
   190
EXPORT_C void CMPXDbActiveTask::DoCancel()
ff3acec5bc43 Revision: 200949
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parents:
diff changeset
   191
    {
ff3acec5bc43 Revision: 200949
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parents:
diff changeset
   192
    MPX_FUNC("CMPXDbActiveTask::DoCancel");
ff3acec5bc43 Revision: 200949
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parents:
diff changeset
   193
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parents:
diff changeset
   194
    // Callback and cleanup
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diff changeset
   195
    iObserver.HandleOperationCompleted( KErrCancel );
ff3acec5bc43 Revision: 200949
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parents:
diff changeset
   196
    delete iCurCommand;
ff3acec5bc43 Revision: 200949
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parents:
diff changeset
   197
    iCurCommand = NULL;
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parents:
diff changeset
   198
    iChangeMessages->Reset();
ff3acec5bc43 Revision: 200949
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parents:
diff changeset
   199
    }
ff3acec5bc43 Revision: 200949
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parents:
diff changeset
   200
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   201
// ---------------------------------------------------------------------------
ff3acec5bc43 Revision: 200949
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parents:
diff changeset
   202
// From CActive
ff3acec5bc43 Revision: 200949
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parents:
diff changeset
   203
// ---------------------------------------------------------------------------
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diff changeset
   204
//
ff3acec5bc43 Revision: 200949
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diff changeset
   205
EXPORT_C TInt CMPXDbActiveTask::RunError( TInt aError )
ff3acec5bc43 Revision: 200949
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parents:
diff changeset
   206
    {
ff3acec5bc43 Revision: 200949
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parents:
diff changeset
   207
    MPX_FUNC("CMPXDbActiveTask::RunError");
ff3acec5bc43 Revision: 200949
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parents:
diff changeset
   208
ff3acec5bc43 Revision: 200949
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parents:
diff changeset
   209
    // Callback and cleanup
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parents:
diff changeset
   210
    iObserver.HandleOperationCompleted( aError );
ff3acec5bc43 Revision: 200949
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parents:
diff changeset
   211
    delete iCurCommand;
ff3acec5bc43 Revision: 200949
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parents:
diff changeset
   212
    iCurCommand = NULL;
ff3acec5bc43 Revision: 200949
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parents:
diff changeset
   213
    iChangeMessages->Reset();
ff3acec5bc43 Revision: 200949
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parents:
diff changeset
   214
ff3acec5bc43 Revision: 200949
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diff changeset
   215
    return KErrNone;
ff3acec5bc43 Revision: 200949
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parents:
diff changeset
   216
    }
ff3acec5bc43 Revision: 200949
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parents:
diff changeset
   217
ff3acec5bc43 Revision: 200949
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parents:
diff changeset
   218
// END OF FILE