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// Copyright (c) 2006-2009 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 "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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#if !defined(__DESHEADER_H__)
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#define __DESHEADER_H__
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#include <pcstore/pcstoredef.h>
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namespace PCStore
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{
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class CStoreWriteStream;
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class CStoreReadStream;
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class CDes8;
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class CDes16;
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/**
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@internalComponent
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Compact stream format for positive integer values in the range 0 to 536,870,911 ((2^29)-1). Values
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in the range 0-127 are stored in a single byte, 128-16383 in two bytes and other values in 4 bytes.
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The class provides conversion to and from TInt, and both externalization and internalization functions.
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*/
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class TCardinality
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{
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public:
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TCardinality(): iCount(0) {};
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TCardinality(TInt aCount);
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void Externalize(CStoreWriteStream& aStream) const;
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void Internalize(CStoreReadStream& aStream);
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operator TInt() const;
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private:
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TUint iCount;
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};
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/**
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@internalComponent
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Class for the header information of CDes8 and CDes16.
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The header information of CDes8 and CDes16 includes the data width (8 or 16 bits) and length.
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This class forms the header information from the given CDes8 or CDes16 data and stores it into
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a TCardinality object. It also provides the member functions to externalize / internalize
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itself to / from a stream.
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*/
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class CDesHeader
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{
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public:
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CDesHeader() {}
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CDesHeader(const CDes8& aDes8);
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CDesHeader(const CDes16& aDes16);
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void Externalize(CStoreWriteStream& aStream) const;
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void Internalize(CStoreReadStream& aStream);
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TInt Length() const;
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private:
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TCardinality iVal;
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};
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}
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#endif // !defined(__DESHEADER_H__)
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