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/*
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* Copyright (c) 2009-2010 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: Pushes data to existing stream from outside
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*
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*/
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#include "DunDataPusher.h"
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#include "DunDownstream.h"
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#include "DunDebug.h"
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// ---------------------------------------------------------------------------
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// Two-phased constructor.
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// ---------------------------------------------------------------------------
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//
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CDunDataPusher* CDunDataPusher::NewL( CDunDownstream& aParent,
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MDunCompletionReporter* aStreamCallback )
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{
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CDunDataPusher* self = new (ELeave) CDunDataPusher( aParent,
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aStreamCallback );
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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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CDunDataPusher::~CDunDataPusher()
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{
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FTRACE(FPrint( _L("CDunDataPusher::~CDunDataPusher()" )));
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ResetData();
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FTRACE(FPrint( _L("CDunDataPusher::~CDunDataPusher() complete" )));
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}
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// ---------------------------------------------------------------------------
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// Resets data to initial values
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// ---------------------------------------------------------------------------
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//
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void CDunDataPusher::ResetData()
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{
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// APIs affecting this:
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// SendQueuedData()
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Stop();
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// AddToEventQueue()
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iEventQueue.Close();
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// Internal
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Initialize();
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}
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// ---------------------------------------------------------------------------
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// Sets media to be used for this endpoint
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// ---------------------------------------------------------------------------
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//
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TInt CDunDataPusher::SetMedia( RComm* aComm )
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{
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FTRACE(FPrint( _L("CDunDataPusher::SetMedia() (RComm)" )));
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if ( !aComm )
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{
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FTRACE(FPrint( _L("CDunDataPusher::SetMedia() (RComm) (not initialized!) complete" )));
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return KErrGeneral;
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}
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iComm = aComm;
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FTRACE(FPrint( _L("CDunDataPusher::SetMedia() (RComm) complete" )));
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return KErrNone;
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}
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// ---------------------------------------------------------------------------
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// Sets media to be used for this endpoint
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// ---------------------------------------------------------------------------
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//
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TInt CDunDataPusher::SetMedia( RSocket* aSocket )
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{
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FTRACE(FPrint( _L("CDunDataPusher::SetMedia() (RSocket)" )));
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if ( !aSocket )
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{
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FTRACE(FPrint( _L("CDunDataPusher::SetMedia() (RSocket) (not initialized!) complete" )));
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return KErrGeneral;
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}
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iSocket = aSocket;
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FTRACE(FPrint( _L("CDunDataPusher::SetMedia() (RSocket) complete" )));
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return KErrNone;
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}
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// ---------------------------------------------------------------------------
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// Adds event notification to queue
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// ---------------------------------------------------------------------------
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//
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TInt CDunDataPusher::AddToEventQueue( const TDesC8* aDataToPush,
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MDunCompletionReporter* aCallback )
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{
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FTRACE(FPrint( _L("CDunDataPusher::AddToQueue()" )));
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if ( !aDataToPush || aDataToPush->Length()<0 )
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{
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FTRACE(FPrint( _L("CDunDataPusher::AddToQueue() (unknown data) complete" )));
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return KErrGeneral;
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}
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// Check if identical pointer to data already exists
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TInt foundIndex = FindEventFromQueue( aDataToPush );
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if ( foundIndex >= 0 )
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{
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FTRACE(FPrint( _L("CDunDataPusher::AddToQueue() (already exists) complete" )));
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return KErrAlreadyExists;
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}
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// Unique pointer -> add to event queue
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TDunDataPush dataPush;
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dataPush.iDataToPush = aDataToPush;
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dataPush.iCallback = aCallback;
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TInt retTemp = iEventQueue.Append( dataPush );
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if ( retTemp != KErrNone )
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{
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FTRACE(FPrint( _L("CDunDataPusher::AddToQueue() (append failed!) complete" )));
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return retTemp;
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}
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FTRACE(FPrint( _L("CDunDataPusher::AddToQueue() complete (count=%d)" ), iEventQueue.Count() ));
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return KErrNone;
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}
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// ---------------------------------------------------------------------------
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// Finds an event from queue
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// ---------------------------------------------------------------------------
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//
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TInt CDunDataPusher::FindEventFromQueue( const TDesC8* aDataToPush )
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{
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FTRACE(FPrint( _L("CDunDataPusher::FindEventFromQueue()" )));
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TInt i;
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TInt count = iEventQueue.Count();
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for ( i=0; i<count; i++ )
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{
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if ( iEventQueue[i].iDataToPush == aDataToPush )
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{
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FTRACE(FPrint( _L("CDunDataPusher::FindEventFromQueue() complete" )));
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return i;
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}
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}
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FTRACE(FPrint( _L("CDunDataPusher::FindEventFromQueue() (not found) complete" )));
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return KErrNotFound;
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}
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// ---------------------------------------------------------------------------
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// Stops one event in the event queue
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// ---------------------------------------------------------------------------
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//
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TInt CDunDataPusher::StopOneEvent( const TDesC8* aDataToPush )
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{
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FTRACE(FPrint( _L("CDunDataPusher::StopOneEvent()" )));
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if ( !aDataToPush )
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{
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FTRACE(FPrint( _L("CDunDataPusher::StopOneEvent() (unknown data) complete" )));
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return KErrGeneral;
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}
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TInt foundIndex = FindEventFromQueue( aDataToPush );
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if ( foundIndex >= 0 )
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{
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if ( iEventIndex == foundIndex )
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{
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Stop();
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}
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FTRACE(FPrint( _L("CDunDataPusher::StopOneEvent() complete" )));
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return KErrNone;
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}
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FTRACE(FPrint( _L("CDunDataPusher::StopOneEvent() (not found) complete" )));
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return KErrNotFound;
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}
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// ---------------------------------------------------------------------------
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// Sends queued data in round robin
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// ---------------------------------------------------------------------------
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//
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TBool CDunDataPusher::SendQueuedData()
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{
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FTRACE(FPrint( _L("CDunDataPusher::SendQueuedData()" )));
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if ( iPushState!=EDunStateIdle || iEventQueue.Count()==0 )
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{
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FTRACE(FPrint( _L("CDunDataPusher::SendQueuedData() (not ready) complete" )));
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return EFalse;
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}
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TInt retTemp = ManageOneEvent();
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if ( retTemp != KErrNone )
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{
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FTRACE(FPrint( _L("CDunDataPusher::SendQueuedData() (ERROR) complete" )));
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return EFalse;
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}
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FTRACE(FPrint( _L("CDunDataPusher::SendQueuedData() complete (%d)" ), iEventQueue.Count() ));
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return ETrue;
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}
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// ---------------------------------------------------------------------------
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// Stops sending for write endpoint
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// ---------------------------------------------------------------------------
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//
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void CDunDataPusher::Stop()
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{
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FTRACE(FPrint( _L("CDunDataPusher::Stop()" )));
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Cancel();
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FTRACE(FPrint( _L("CDunDataPusher::Stop() complete" )));
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}
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// ---------------------------------------------------------------------------
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// Signals completion status in round robin and clears event queue
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// ---------------------------------------------------------------------------
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//
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TInt CDunDataPusher::SignalCompletionAndClearQueue()
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{
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FTRACE(FPrint( _L("CDunDataPusher::SignalCompletionAndClearQueue()" )));
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// First copy the event queue to temporary notitication queue and
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// reset the real event queue before notifications. This is done because
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// implementor of NotifyDataPushComplete() can call AddToEventQueue()
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// (and KErrAlreadyExists will happen there)
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TInt i;
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TInt retTemp;
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RPointerArray<MDunCompletionReporter> notify;
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TInt count = iEventQueue.Count();
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for ( i=0; i<count; i++ )
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{
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if ( !iEventQueue[i].iCallback )
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{
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continue;
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}
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retTemp = notify.Append( iEventQueue[i].iCallback );
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if ( retTemp != KErrNone )
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{
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FTRACE(FPrint( _L("CDunDataPusher::SignalCompletionAndClearQueue() (append failed!) complete" )));
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return retTemp;
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}
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}
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iEventQueue.Reset();
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iEventIndex = 0;
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// Now notify
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count = notify.Count();
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for ( i=0; i<count; i++ )
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{
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notify[i]->NotifyDataPushComplete( EFalse );
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}
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notify.Close();
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FTRACE(FPrint( _L("CDunDataPusher::SignalCompletionAndClearQueue() complete (%d)" ), count ));
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return KErrNone;
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}
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// ---------------------------------------------------------------------------
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// CDunDataPusher::CDunDataPusher
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// ---------------------------------------------------------------------------
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//
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CDunDataPusher::CDunDataPusher( CDunDownstream& aParent,
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MDunCompletionReporter* aStreamCallback ) :
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CActive( EPriorityHigh ),
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iParent( aParent ),
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iStreamCallback( aStreamCallback )
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{
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Initialize();
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}
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// ---------------------------------------------------------------------------
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// CDunDataPusher::ConstructL
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// ---------------------------------------------------------------------------
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//
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void CDunDataPusher::ConstructL()
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{
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FTRACE(FPrint( _L("CDunDataPusher::ConstructL()" )));
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if ( !iStreamCallback )
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{
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User::Leave( KErrGeneral );
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}
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CActiveScheduler::Add( this );
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FTRACE(FPrint( _L("CDunDataPusher::ConstructL() complete" )));
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}
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// ---------------------------------------------------------------------------
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// Initializes this class
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// ---------------------------------------------------------------------------
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//
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void CDunDataPusher::Initialize()
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{
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// Don't initialize iUtility here (it is set through NewL)
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// Don't initialize iStreamCallback here (it is set through NewL)
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iEventIndex = 0;
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iSocket = NULL;
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iComm = NULL;
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}
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// ---------------------------------------------------------------------------
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// Manages one event's data push
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// ---------------------------------------------------------------------------
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//
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TInt CDunDataPusher::ManageOneEvent()
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{
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FTRACE(FPrint( _L("CDunDataPusher::ManageOneEvent()" )));
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if ( IsActive() )
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{
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FTRACE(FPrint( _L("CDunDataPusher::ManageOneEvent() (not ready) complete" )));
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return KErrNotReady;
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}
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if ( iEventIndex < 0 ||
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iEventIndex >= iEventQueue.Count() )
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{
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FTRACE(FPrint( _L("CDunDataPusher::ManageOneEvent() (buffer mismatch) complete" )));
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return KErrGeneral;
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}
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const TDesC8* dataToPush = iEventQueue[iEventIndex].iDataToPush;
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if ( iComm )
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{
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iComm->Write( iStatus, *dataToPush );
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SetActive();
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FTRACE(FPrint( _L("CDunDataPusher::ManageOneEvent() RComm Write() requested for %d bytes... (buffer=0x%08X)" ), dataToPush->Length(), dataToPush ));
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}
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else if ( iSocket )
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{
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iSocket->Send( *dataToPush, 0, iStatus );
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SetActive();
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FTRACE(FPrint( _L("CDunDataPusher::ManageOneEvent() RSocket Send() requested for %d bytes... (buffer=0x%08X)" ), dataToPush->Length(), dataToPush ));
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}
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else
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{
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FTRACE(FPrint( _L("CDunDataPusher::ManageOneEvent() (ERROR) complete" )));
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return KErrGeneral;
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}
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FTRACE(FPrint( _L("CDunDataPusher::ManageOneEvent() complete" )));
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return KErrNone;
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}
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// ---------------------------------------------------------------------------
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// Check whether an error code is severe error or not
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// ---------------------------------------------------------------------------
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//
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TInt CDunDataPusher::ProcessErrorCondition( TInt aError, TBool& aIsError )
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{
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FTRACE(FPrint( _L("CDunDataPusher::ProcessErrorCondition() (Dir=%d)" ), EDunWriterDownstream));
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aIsError = EFalse;
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if ( aError != KErrNone )
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{
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aIsError = ETrue;
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TInt retTemp = iParent.iOkErrorsW.Find( aError );
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if ( retTemp == KErrNotFound )
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{
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FTRACE(FPrint( _L("CDunDataPusher::ProcessErrorCondition() (Dir=%d) (%d=ETrue) complete" ), EDunWriterDownstream, aError));
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return ETrue;
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}
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}
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FTRACE(FPrint( _L("CDunDataPusher::ProcessErrorCondition() (Dir=%d) (%d=EFalse) complete" ), EDunWriterDownstream, aError));
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return EFalse;
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}
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// ---------------------------------------------------------------------------
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// From class CActive.
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// Gets called when endpoint data write complete
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// ---------------------------------------------------------------------------
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//
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void CDunDataPusher::RunL()
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{
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FTRACE(FPrint( _L("CDunDataPusher::RunL() (buffer=0x%08X)" ), iEventQueue[iEventIndex].iDataToPush ));
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TBool isError;
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TInt retTemp = iStatus.Int();
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TInt stop = ProcessErrorCondition( retTemp, isError );
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if ( !stop ) // no real error detected -> continue
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{
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if ( !isError )
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{
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iEventIndex++;
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}
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if ( iEventIndex < iEventQueue.Count() )
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{
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// More to serve so start again
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ManageOneEvent();
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}
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else
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{
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// Last was served so stop processing and notify
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iStreamCallback->NotifyDataPushComplete( ETrue );
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}
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} // if ( !stop )
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else // stop -> tear down connection
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{
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TDunConnectionReason connReason;
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connReason.iReasonType = EDunReasonTypeRW;
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connReason.iContext = EDunMediaContextLocal;
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connReason.iSignalType = 0;
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connReason.iSignalHigh = EFalse;
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connReason.iDirection = EDunWriterDownstream;
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connReason.iErrorCode = retTemp;
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iParent.iUtility->DoNotifyConnectionNotOk( iComm,
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iSocket,
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connReason,
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iParent.iCallbacksW );
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} // else
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FTRACE(FPrint( _L("CDunDataPusher::RunL() complete" )));
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}
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// ---------------------------------------------------------------------------
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// From class CActive.
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// Gets called on cancel
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// ---------------------------------------------------------------------------
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//
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void CDunDataPusher::DoCancel()
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{
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FTRACE(FPrint( _L("CDunDataPusher::DoCancel()" )));
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if ( iComm )
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{
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iComm->WriteCancel();
|
|
415 |
FTRACE(FPrint( _L("CDunDataPusher::DoCancel() (RComm) cancelled" )));
|
|
416 |
}
|
|
417 |
else if ( iSocket )
|
|
418 |
{
|
|
419 |
iSocket->CancelWrite();
|
|
420 |
FTRACE(FPrint( _L("CDunDataPusher::DoCancel() (RSocket) cancelled" )));
|
|
421 |
}
|
60
|
422 |
else
|
|
423 |
{
|
|
424 |
FTRACE(FPrint( _L("CDunDataPusher::DoCancel() (ERROR) complete" )));
|
|
425 |
}
|
29
|
426 |
FTRACE(FPrint( _L("CDunDataPusher::DoCancel() complete" )));
|
|
427 |
}
|