author | hgs |
Tue, 28 Sep 2010 14:48:39 +0300 | |
changeset 75 | 2d2d25361590 |
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/* |
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* Copyright (c) 2002-2004 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: This file contains the header file of the CTask class. |
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* |
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*/ |
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#ifndef SWINSTTASK_H |
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#define SWINSTTASK_H |
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// INCLUDES |
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#include <e32base.h> |
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#include <s32strm.h> |
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#include <ecom/ecom.h> |
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#include <SWInstUid.h> |
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class RWriteStream; |
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class RReadStream; |
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namespace SwiUI |
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{ |
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// CONSTANTS |
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const TUid KTaskInterfaceUid = { KSWInstTaskInterfaceUid } ; |
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/** |
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* Task represents a single task in task manager. This is an abstract interface |
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* and concrete tasks are implemented as ecom plugins. |
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* |
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* @since 3.0 |
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*/ |
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class CTask : public CBase |
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{ |
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public: // Constructors and destructor |
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/** |
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* Two-phased constructor. |
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*/ |
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inline static CTask* NewL( const TUid& aImplUid, TBool aIsPersistent ); |
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/** |
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* Destructor. |
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*/ |
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inline virtual ~CTask(); |
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public: // New functions |
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/** |
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* Return the ECOM implementation uid of this task. |
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* @since 3.0 |
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* @return ECOM uid of this implementation. |
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*/ |
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inline const TUid& ImplementationUid() const; |
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/** |
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* Indicate if this task is persistent or not. |
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* @since 3.0 |
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* @return ETrue, if the task is persistent, EFalse otherwise. |
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*/ |
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inline TBool IsPersistent() const; |
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/** |
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* Gets the id of the task. |
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* @since 3.0 |
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* @return Id of the task. |
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*/ |
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inline TInt Id() const; |
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/** |
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* Sets the id of the task. This should be used only by the |
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* task manager. |
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* @since 3.0 |
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* @param aId - Id of the task. |
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*/ |
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inline void SetId( TInt aId ); |
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/** |
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* Externalizes the task. |
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* @since 3.0 |
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* @param aStream - The stream where to externalize. |
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*/ |
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inline void ExternalizeL( RWriteStream& aStream ) const; |
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/** |
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* Internalizes the task. |
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* @since 3.0 |
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* @param aStream - The stream where to internalize. |
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*/ |
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inline void InternalizeL( RReadStream& aStream ); |
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/** |
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* Executes the task. |
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* @since 3.0 |
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*/ |
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virtual void ExecuteL() = 0; |
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/** |
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* Adds a parameter to the task. |
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* @since 3.0 |
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* @param aParam - Packaged paramter to set. |
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* @param aIndex - Index of the parameter. |
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*/ |
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virtual void SetParameterL( const TDesC8& aParam, TInt aIndex ) = 0; |
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protected: // New functions |
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/** |
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* Derived classes must implement this to externalize themselves. |
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* @since 3.0 |
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* @param aStream - The stream where to externalize. |
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*/ |
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virtual void DoExternalizeL( RWriteStream& aStream ) const = 0; |
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/** |
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* Derived classes must implement this to internalize themselves. |
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* @since 3.0 |
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* @param aStream - The stream where to internalize. |
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*/ |
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virtual void DoInternalizeL( RReadStream& aStream ) = 0; |
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private: // Data |
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TUid iDestructKey; |
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TUid iImplementationUid; |
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TBool iIsPersistent; |
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TInt iId; |
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}; |
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} |
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#include "SWInstTask.inl" |
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#endif // SWINSTTASK_H |
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// End of File |