/*
* Copyright (c) 2006-2007 Nokia Corporation and/or its subsidiary(-ies).
* All rights reserved.
* This component and the accompanying materials are made available
* under the terms of "Eclipse Public License v1.0"
* which accompanies this distribution, and is available
* at the URL "http://www.eclipse.org/legal/epl-v10.html".
*
* Initial Contributors:
* Nokia Corporation - initial contribution.
*
* Contributors:
*
* Description: Monitors for new data in RComm local media side
*
*/
#ifndef C_CDUNDATAWAITER_H
#define C_CDUNDATAWAITER_H
#include "DunChanMan.h"
/**
* Class to monitor for new data in RComm local media side
* This class is needed to avoid unnecessary resource allocation of Dataport
* side when number of supported Dataport ports for DUN is less than the
* number of local media side plugins that use RComm
*
* @lib dunutils.lib
* @since S60 v3.2
*/
NONSHARABLE_CLASS( CDunDataWaiter ) : public CActive
{
public:
/**
* Two-phased constructor.
* @param aChannelCallback Callback to call when notification via
* MDunChannelAllocator to be made
* @return Instance of self
*/
static CDunDataWaiter* NewL( MDunChannelAllocator* aChannelCallback );
/**
* Destructor.
*/
virtual ~CDunDataWaiter();
/**
* Resets data to initial values
*
* @since S60 3.2
* @return None
*/
void ResetData();
/**
* Adds callback for RunL error controlling
* The callback will be called when error is detected in asynchronous
* operation
*
* @since S60 3.2
* @param aCallback Callback to call when line status changes
* @return Symbian error code on error, KErrNone otherwise
*/
TInt AddCallback( MDunConnMon* aCallback );
/**
* Sets media to use for this endpoint
*
* @since S60 3.2
* @param aComm RComm pointer to use as the endpoint
* @return Symbian error code on error, KErrNone otherwise
*/
TInt SetMedia( RComm* aComm );
/**
* Issues request to start waiting for new data in RComm
*
* @since S60 3.2
* @return Symbian error code on error, KErrNone otherwise
*/
TInt IssueRequest();
/**
* Stops monitoring for new data
*
* @since S60 3.2
* @return Symbian error code on error, KErrNone otherwise
*/
TInt Stop();
private:
CDunDataWaiter( MDunChannelAllocator* aChannelCallback );
void ConstructL();
/**
* Initializes this class
*
* @since S60 3.2
* @return None
*/
void Initialize();
// from base class CActive
/**
* From CActive.
* Gets called when new data in RComm object
*
* @since S60 3.2
* @return None
*/
void RunL();
/**
* From CActive.
* Gets called on cancel
*
* @since S60 3.2
* @return None
*/
void DoCancel();
private: // data
/**
* Callback(s) to call when notification(s) via MDunConnMon to be made
* Normally contains only one callback
*/
RPointerArray<MDunConnMon> iCallbacks;
/**
* Callback to call when notification via MDunChannelAllocator to be made
* Not own.
*/
MDunChannelAllocator* iChannelCallback;
/**
* Current state of data monitoring: active or inactive
*/
TDunState iDataWaiterState;
/**
* RComm object of local media side
* Not own.
*/
RComm* iComm;
};
#endif // C_CDUNDATAWAITER_H