author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Tue, 02 Feb 2010 01:11:40 +0200 | |
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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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/** |
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@file |
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@publishedPartner |
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@released |
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*/ |
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#ifndef RMTPTYPE_H |
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#define RMTPTYPE_H |
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#include <e32std.h> |
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#include <mtp/mmtptype.h> |
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/** |
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Defines a general purpose class for containing, accessing, and manipulating |
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a reference to any MMTPType derived data type. The data type buffer itself |
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resides on the heap and is managed by this class. |
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By default all MTP simple (signed and unsigned integer), array (signed and |
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unsigned integer), and string types are supported. Support for any other data |
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types can be provided by derived subclasses which provide suitable |
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implementions of the CreateL and Destroy methods. |
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This class and it's derived subclasses can be freely contained as member |
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variables within any CBase derived class (typically a CMTPTypeCompoundBase |
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derived class). When used as a stack variable the class's CleanupClosePushL |
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method should always be used to ensure that the heap storage managed by the |
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class is correctly deallocated. |
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@publishedPartner |
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@released |
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*/ |
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class RMTPType : public MMTPType |
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{ |
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public: |
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IMPORT_C RMTPType(); |
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IMPORT_C virtual ~RMTPType(); |
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IMPORT_C void CleanupClosePushL(); |
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IMPORT_C void Close(); |
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IMPORT_C void OpenL(TUint aDataType); |
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IMPORT_C MMTPType& Data(); |
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//internal API |
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static MMTPType* AllocL(const TUint aDataType); |
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static void Destroy(const TUint aDataType, MMTPType* aType); |
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public: // From MMTPType |
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IMPORT_C TInt FirstReadChunk(TPtrC8& aChunk) const; |
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IMPORT_C TInt NextReadChunk(TPtrC8& aChunk) const; |
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IMPORT_C TInt FirstWriteChunk(TPtr8& aChunk); |
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IMPORT_C TInt NextWriteChunk(TPtr8& aChunk); |
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IMPORT_C TUint64 Size() const; |
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IMPORT_C TUint Type() const; |
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IMPORT_C TBool CommitRequired() const; |
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IMPORT_C MMTPType* CommitChunkL(TPtr8& aChunk); |
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IMPORT_C TInt Validate() const; |
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protected: |
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IMPORT_C virtual MMTPType* CreateL(TUint aDataType); |
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IMPORT_C virtual void Destroy(MMTPType* aType); |
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private: |
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// MMTPType* AllocL(TUint aDataType); |
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private: // Owned |
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/** |
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The data type buffer. |
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*/ |
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MMTPType* iData; |
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}; |
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#endif // RMTPTYPE_H |