1 /**

     2 * Copyright (c) 2005-2009 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:

    15 *

    16 */

    17 

    18 

    19 

    20 /**

    21  @file SHIMDATATRANSFER.H

    22  @internalComponent

    23 */

    24 

    25 #if !defined(__SHIMDATATRANSFER_H__)

    26 #define __SHIMDATATRANSFER_H__

    27 

    28 #include <e32def.h>

    29 #include <e32base.h>

    30 #include "ss_datatransfer.h"

    31 

    32 class CConnectionProvdBase;

    33 class CNifManSubConnectionShim;

    34 class CConnDataTransferShim : public CConnDataTransfer

    35 	{

    36 public:

    37 	CConnDataTransferShim(CNifManSubConnectionShim& aSubConnectionProviderShim);

    38 	~CConnDataTransferShim();

    39 	

    40 public:

    41 	//up-calls from the CNifManSubConnectionShim

    42 	TInt NotifyDataTransferred(TUint aUplinkVolume, TUint aDownlinkVolume);

    43 	TInt NotifyDataSent(TUint aUplinkVolume);

    44 	TInt NotifyDataReceived(TUint aDownlinkVolume);

    45 

    46 protected:

    47 	//down-calls clients requests

    48 	virtual TInt DoDataTransferred(TUint& aUplinkVolume, TUint& aDownlinkVolume);

    49 	virtual TInt DoDataTransferredCancel();

    50 	virtual TInt DoDataSentNotificationRequest(TUint aRequestedGranularity, TUint aRequestedNotificationVolume);

    51 	virtual TInt DoDataSentNotificationCancel();

    52 	virtual TInt DoDataReceivedNotificationRequest(TUint aRequestedGranularity, TUint aRequestedNotificationVolume);

    53 	virtual TInt DoDataReceivedNotificationCancel();

    54 

    55 protected:

    56 	TInt CalculateNewUplinkGranularity(TUint aRequestedGranularity);

    57 	TInt CalculateNewDownlinkGranularity(TUint aRequestedGranularity);

    58 

    59 	TInt SetNextUplinkGranularity();

    60 	TInt SetNextDownlinkGranularity();

    61 

    62 	TInt SetUplinkGranularity(TUint aRequestedGranularity);

    63 	TInt SetDownlinkGranularity(TUint aRequestedGranularity);

    64 

    65 protected:

    66 	static TInt CalculateNewGranularity(TInt aRequestedGranularity, TUint aCurrentGranularity, RArray<TUint>& aGranularities, TUint& aNewGranularity);

    67 

    68 private:

    69 	CNifManSubConnectionShim& iSubConnectionProviderShim;

    70 	

    71 	RArray<TUint> iUplinkGranularities;		// ordered lists of deltas for the granularities

    72 	RArray<TUint> iDownlinkGranularities;

    73 

    74 	TUint iCurrentUplinkGranularity;		// the aggregate notification granularity calculated from all the CConnection requests

    75 	TUint iCurrentDownlinkGranularity;

    76 	};

    77 	

    78 #endif	// __SHIMDATATRANSFER_H__