| author | sl@SLION-WIN7.fritz.box |
| Fri, 15 Jun 2012 03:10:57 +0200 | |
| changeset 0 | bde4ae8d615e |
| permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2004-2009 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 the License "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: |
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* |
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*/ |
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|
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|
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/** |
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@file |
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@internalTechnology |
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*/ |
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|
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#ifndef __NullStream_h__ |
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#define __NullStream_h__ |
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|
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#include <s32strm.h> |
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#include <s32buf.h> |
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|
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/** |
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* Implementation of the MStreamBuf interface that throws away all data written |
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* to it. It does not support reading. |
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*/ |
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|
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class TNullBuf : public MStreamBuf |
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{
|
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public: |
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TNullBuf(); |
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TUint BytesWritten(); |
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private: |
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virtual void DoWriteL(const TAny* aPtr,TInt aLength); |
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private: |
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TUint iBytesWritten; |
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}; |
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|
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/** |
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* A write stream that throws away all its input, but keeps track of how many |
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* bytes have been written to it. It is used for determining the amount of |
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* memory needed to store externalised objects. |
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*/ |
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|
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class RNullWriteStream : public RWriteStream |
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{
|
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public: |
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RNullWriteStream(); |
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TUint BytesWritten(); |
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private: |
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TNullBuf iSink; |
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}; |
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|
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#endif |