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// Copyright (c) 2006-2009 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 the License "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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// This is the Cpp file which contains the utility functions to delete all children in the
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// message store
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//
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//
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/**
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@file
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*/
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// User includes
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#include <t_utilsdeleteallchildren.h>
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// Epoc includes
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#include <msvapi.h>
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#include <msvuids.h>
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/**
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CT_MsgUtilsDeleteAllChildren()
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Constructor
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@param aSession
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An object of CMsvSession
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@param aParentId
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Entry ID of whose children would be deleted
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*/
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EXPORT_C CT_MsgUtilsDeleteAllChildren::CT_MsgUtilsDeleteAllChildren(CMsvSession* aSession,TMsvId aParentId)
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: CActive(EPriorityNormal), iSession(aSession), iParentId(aParentId)
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{
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CActiveScheduler::Add(this);
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}
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/**
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~CT_MsgUtilsDeleteAllChildren()
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Destructor
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*/
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CT_MsgUtilsDeleteAllChildren::~CT_MsgUtilsDeleteAllChildren()
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{
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delete iEntry;
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delete iSelection;
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}
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/**
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StartL()
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Deletes the children entries of the specified parent
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@param aStatus
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*/
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EXPORT_C void CT_MsgUtilsDeleteAllChildren::StartL(TRequestStatus& aStatus)
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{
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StartL(EFalse, aStatus);
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}
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/**
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StartL()
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Deletes the children entries of the specified parent
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@param aBlockDelete Delete all in one go
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@param aStatus
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*/
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EXPORT_C void CT_MsgUtilsDeleteAllChildren::StartL(TBool aBlockDelete, TRequestStatus& aStatus)
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{
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iRequestStatus = &aStatus;
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aStatus = KRequestPending;
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// Creates a new CMsvEntry for the specified parent entry ID nad sets the context
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// to that entry.
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if(iEntry==NULL)
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{
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iEntry = CMsvEntry::NewL(*iSession,iParentId,TMsvSelectionOrdering(KMsvNoGrouping,EMsvSortByNone,ETrue));
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}
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iEntry->SetEntryL(iParentId);
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// Gets a selection containing the IDs of children
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iSelection = iEntry->ChildrenL();
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iTotalChildren = iSelection->Count();
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// If the entry has no children entries, then signals the thread that the asynchronous request
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// is complete.
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if (iTotalChildren == 0)
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{
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User::RequestComplete(iRequestStatus,KErrNone);
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}
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// If the entry has children entries then,delete child entries of the context
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// recursively through all the descendants
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else
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{
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if (aBlockDelete)
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{
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iOperation = iEntry->DeleteL(*iSelection ,iStatus);
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iState = EBlockDelete;
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}
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else
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{
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iOperation = iEntry->DeleteL((*iSelection)[iCurrentChild],iStatus);
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iState = EStateThisLevel;
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}
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SetActive();
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}
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}
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/**
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DoCancel()
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Implements cancellation of an outstanding request
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@see CActive::Cancel()
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*/
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void CT_MsgUtilsDeleteAllChildren::DoCancel()
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{
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switch (iState)
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{
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case EStateThisLevel:
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case EBlockDelete:
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iOperation->Cancel();
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break;
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case EStateNextLevel:
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iNextLevel->Cancel();
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break;
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}
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}
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/**
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RunL()
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Handles an active object's request completion event
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@see CActive::RunL()
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*/
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void CT_MsgUtilsDeleteAllChildren::RunL()
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{
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TInt err;
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switch (iState)
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{
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case EStateThisLevel:
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err = CT_MsgUtilsDeleteAllChildren::FinalProgressStatus(*iOperation,iStatus);
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delete iOperation;
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iOperation = NULL;
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switch (err)
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{
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case KErrAccessDenied:
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iUndeletedChildren++;
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if(iNextLevel==NULL)
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{
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iNextLevel = new (ELeave) CT_MsgUtilsDeleteAllChildren(iSession,(*iSelection)[iCurrentChild]);
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}
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iNextLevel->StartL(iStatus);
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SetActive();
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iState = EStateNextLevel;
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break;
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case KErrNone:
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if (++iCurrentChild == iTotalChildren)
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{
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User::RequestComplete(iRequestStatus,KErrNone);
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}
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else
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{
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iOperation = iEntry->DeleteL((*iSelection)[iCurrentChild],iStatus);
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SetActive();
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}
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break;
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default:
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User::RequestComplete(iRequestStatus,err);
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break;
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}
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break;
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case EStateNextLevel:
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err = iStatus.Int();
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iUndeletedChildren += iNextLevel->Undeleted();
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delete iNextLevel;
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iNextLevel = NULL;
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switch (err)
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{
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case KErrNone:
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if (++iCurrentChild == iTotalChildren)
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{
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User::RequestComplete(iRequestStatus,KErrNone);
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}
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else
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{
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iOperation = iEntry->DeleteL((*iSelection)[iCurrentChild],iStatus);
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SetActive();
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iState = EStateThisLevel;
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}
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break;
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default:
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User::RequestComplete(iRequestStatus,err);
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break;
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}
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break;
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case EBlockDelete:
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{
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err = CT_MsgUtilsDeleteAllChildren::FinalProgressStatus(*iOperation,iStatus);
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delete iOperation;
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iOperation = NULL;
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User::RequestComplete(iRequestStatus,err);
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break;
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}
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}
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}
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/**
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FinalProgressStatus()
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This function gets the information about a completed operation for the local entries..
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@param aOperation
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Used to get progress information about the operation
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@param aStatus
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@return
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The error code
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*/
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EXPORT_C TInt CT_MsgUtilsDeleteAllChildren::FinalProgressStatus(CMsvOperation& aOperation,const TRequestStatus& aStatus)
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{
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TInt err = KErrNone;
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if (aOperation.Mtm() == KUidMsvLocalServiceMtm)
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{
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TPckgBuf<TMsvLocalOperationProgress> progress;
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progress.Copy(aOperation.FinalProgress());
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err = progress().iError;
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}
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else
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{
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if (iState == EBlockDelete)
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{
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TRAP_IGNORE(err = McliUtils::GetProgressErrorL(aOperation));
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}
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else
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{
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err = aStatus.Int();
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}
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}
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return (err);
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}
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