author | hgs |
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/* |
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* Copyright (c) 2007-2008 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: Declares CQueueHandler class which handles VoIP client/server |
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* messaging. |
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* |
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*/ |
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#ifndef VOIPQUEUEHANDLER_H |
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#define VOIPQUEUEHANDLER_H |
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// INCLUDES |
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#include <e32base.h> |
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#include <e32msgqueue.h> |
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#include "VoIPAudioClientServer.h" // for TVoIPMsgBuf |
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// FORWARD DECLARATIONS |
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class CVoIPDataBuffer; |
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/** |
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* MQueueHandlerObserver |
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* Responsible for sending callbacks to the VoIP client app |
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*/ |
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class MQueueHandlerObserver |
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{ |
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public: |
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virtual void FillBuffer(CVoIPDataBuffer* aBuffer) = 0; |
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virtual void EmptyBuffer(CVoIPDataBuffer* aBuffer) = 0; |
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virtual void Event(TInt aEventType, TInt aError) = 0; |
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}; |
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/** |
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* CQueueHandler |
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* |
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*/ |
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NONSHARABLE_CLASS(CQueueHandler) : public CActive |
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{ |
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public: |
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/** |
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* NewL() |
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* Contructor |
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* |
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*/ |
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static CQueueHandler* NewL(MQueueHandlerObserver* aObserver, |
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RMsgQueue<TVoIPMsgBuf>* aMsgQueue, TInt aBufferLen = 0); |
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/** |
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* destructor |
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*/ |
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virtual ~CQueueHandler(); |
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/** |
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* Start |
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* Starts listening for events. |
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* |
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*/ |
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void Start(); |
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/** |
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* Returns request status. |
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*/ |
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TRequestStatus* Status(); |
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private: |
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/** |
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* constructor |
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*/ |
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CQueueHandler(RMsgQueue<TVoIPMsgBuf>* aMsgQueue); |
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void ConstructL(MQueueHandlerObserver* aObserver, TInt aBufferLen); |
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// from CActive |
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void DoCancel(); |
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void RunL(); |
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TInt RunError(TInt aError); |
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void DoFillBuffer(TInt aBufLen, TInt aStatus); |
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void DoEmptyBuffer(TInt aBufLen, TInt aStatus); |
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private: |
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// data |
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MQueueHandlerObserver* iObserver; // (not owned) |
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RMsgQueue<TVoIPMsgBuf>* iMsgQueue; |
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RChunk iChunk; |
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TPtr8 iChunkDataPtr; |
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CVoIPDataBuffer* iBuffer; |
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}; |
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#endif //VOIPQUEUEHANDLER_H |
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// End of File |