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/*
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* Copyright (c) 2006-2007 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: Monitors for new data in RComm local media side
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*
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*/
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#ifndef C_CDUNDATAWAITER_H
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#define C_CDUNDATAWAITER_H
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#include "DunChanMan.h"
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/**
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* Class to monitor for new data in RComm local media side
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* This class is needed to avoid unnecessary resource allocation of Dataport
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* side when number of supported Dataport ports for DUN is less than the
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* number of local media side plugins that use RComm
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*
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* @lib dunutils.lib
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* @since S60 v3.2
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*/
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NONSHARABLE_CLASS( CDunDataWaiter ) : public CActive
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{
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public:
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/**
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* Two-phased constructor.
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* @param aChannelCallback Callback to call when notification via
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* MDunChannelAllocator to be made
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* @return Instance of self
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*/
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static CDunDataWaiter* NewL( MDunChannelAllocator* aChannelCallback );
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/**
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* Destructor.
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*/
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virtual ~CDunDataWaiter();
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/**
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* Resets data to initial values
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*
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* @since S60 3.2
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* @return None
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*/
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void ResetData();
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/**
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* Adds callback for RunL error controlling
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* The callback will be called when error is detected in asynchronous
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* operation
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*
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* @since S60 3.2
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* @param aCallback Callback to call when line status changes
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* @return Symbian error code on error, KErrNone otherwise
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*/
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TInt AddCallback( MDunConnMon* aCallback );
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/**
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* Sets media to use for this endpoint
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*
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* @since S60 3.2
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* @param aComm RComm pointer to use as the endpoint
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* @return Symbian error code on error, KErrNone otherwise
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*/
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TInt SetMedia( RComm* aComm );
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/**
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* Issues request to start waiting for new data in RComm
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*
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* @since S60 3.2
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* @return Symbian error code on error, KErrNone otherwise
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*/
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TInt IssueRequest();
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/**
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* Stops monitoring for new data
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*
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* @since S60 3.2
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* @return Symbian error code on error, KErrNone otherwise
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*/
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TInt Stop();
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private:
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CDunDataWaiter( MDunChannelAllocator* aChannelCallback );
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void ConstructL();
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/**
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* Initializes this class
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*
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* @since S60 3.2
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* @return None
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*/
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void Initialize();
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// from base class CActive
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/**
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* From CActive.
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* Gets called when new data in RComm object
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*
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* @since S60 3.2
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* @return None
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*/
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void RunL();
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/**
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* From CActive.
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* Gets called on cancel
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*
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* @since S60 3.2
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* @return None
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*/
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void DoCancel();
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private: // data
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/**
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* Callback(s) to call when notification(s) via MDunConnMon to be made
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* Normally contains only one callback
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*/
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RPointerArray<MDunConnMon> iCallbacks;
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/**
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* Callback to call when notification via MDunChannelAllocator to be made
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* Not own.
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*/
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MDunChannelAllocator* iChannelCallback;
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/**
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* Current state of data monitoring: active or inactive
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*/
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TDunState iDataWaiterState;
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/**
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* RComm object of local media side
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* Not own.
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*/
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RComm* iComm;
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};
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#endif // C_CDUNDATAWAITER_H
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