1 /*

     2 * Copyright (c) 2007-2009 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 the License "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 * Implementation of the MStreamBuf interface that throws away all

    16 * data written to it but keeps track of how many bytes have been

    17 * written to it.  It does not support reading.

    18 *

    19 */

    20 

    21 

    22 /**

    23  @file

    24  @internalTechnology

    25  @released

    26 */

    27 #ifndef __NULLBUF_H__

    28 #define __NULLBUF_H__

    29 #include <e32base.h>

    30 #include <s32buf.h>

    31 

    32 NONSHARABLE_CLASS(TNullBuf) : public MStreamBuf

    33 	{

    34 public:

    35 	IMPORT_C TNullBuf();

    36 	IMPORT_C TUint BytesWritten();

    37 private:

    38 	// Implement MStreamBuf vritual

    39 	virtual void DoWriteL(const TAny* aPtr,TInt aLength);

    40 private:

    41 	TUint iBytesWritten;

    42 	};

    43 #endif