author | Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com> |
Mon, 30 Mar 2009 12:54:55 +0300 | |
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child 36 | 0ed94ceaa377 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2005 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: A task to update all Feeds. |
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* |
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*/ |
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#ifndef UPDATE_ALL_FEEDS_TASK_H |
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#define UPDATE_ALL_FEEDS_TASK_H |
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// INCLUDES |
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#include <e32base.h> |
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#include "LeakTracker.h" |
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#include "UpdateFeedTask.h" |
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#include "Task.h" |
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#include "f32file.h" |
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// CONSTANTS |
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// MACROS |
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// DATA TYPES |
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// FUNCTION PROTOTYPES |
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// FORWARD DECLARATIONS |
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class CPackedFeed; |
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class CUpdateFeedTask; |
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class CCheckDiskSpace; |
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// CLASS DECLARATION |
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/** |
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* The UpdateAllFeedsTask's observer. |
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* |
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* \b Library: FeedsEngine.lib |
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* |
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* @since 3.1 |
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*/ |
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class MUpdateAllFeedsTaskObserver |
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{ |
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public: |
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/** |
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* Notifies the observer that the task is about to start a lengthy |
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* operation. In response the observer could display somekind of |
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* status indicator. |
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* |
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* @since 3.1 |
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* @return void. |
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*/ |
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//virtual void StartWait() = 0; |
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/** |
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* Called to notify the obsever how many feeds remain to be updated. |
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* |
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* @since 3.1 |
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* @param aStatusCode The completion status of the request. |
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* @return Void |
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*/ |
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virtual void UpdateAllFeedsProgress(TInt aMaxCount, TInt aRemaining) = 0; |
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/** |
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* Called upon completion of the task. |
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* |
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* @since 3.1 |
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* @param aStatusCode The completion status of the request. |
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* @return Void |
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*/ |
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virtual void UpdateAllFeedsCompleted(TInt aStatusCode) = 0; |
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/** |
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* Called upon start of the task. |
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* |
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* @since 3.1 |
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* @param . |
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* @return connection |
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*/ |
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virtual CHttpConnection& HttpConnection() = 0; |
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}; |
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/** |
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* A task to update a Feed. |
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* |
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* \b Library: FeedsEngine.lib |
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* |
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* @since 3.1 |
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*/ |
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class CUpdateAllFeedsTask: public CTask, public MUpdateFeedTaskObserver |
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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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static CUpdateAllFeedsTask* NewL(CFeedsServer& aFeedsServer, |
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TInt aFolderListId, MUpdateAllFeedsTaskObserver& aObserver); |
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/** |
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* Two-phased constructor. |
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* For a folder list, only update selected feeds |
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*/ |
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static CUpdateAllFeedsTask* NewL(CFeedsServer& aFeedsServer, |
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TInt aFolderListId, const RArray<TInt>& aFeedIds, MUpdateAllFeedsTaskObserver& aObserver); |
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/** |
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* Destructor. |
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*/ |
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virtual ~CUpdateAllFeedsTask(); |
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public: // From CTask |
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/** |
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* Starts the task. |
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* |
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* @since 3.1 |
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* @return Void |
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*/ |
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virtual void StartTaskL(); |
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public: // From MUpdateFeedTaskObserver |
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/** |
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* Notifies the observer that the task is about to start a lengthy |
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* operation. In response the observer could display somekind of |
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* status indicator. |
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* |
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* @since 3.1 |
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* @return void. |
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*/ |
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virtual void StartWait(); |
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/** |
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* Called upon completion of the task. |
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* |
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* @since 3.1 |
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* @param aPackedFeed The resulting feed. aPackedFeed is adopted by the |
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* implementing class. |
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* @param aFeedUrl The feed's url. |
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* @param aFeedId feed id |
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* @param aStatusCode The completion status of the request. |
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* @return Void |
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*/ |
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virtual void Completed(CPackedFeed* aPackedFeed, const TDesC& aFeedUrl,TInt aFeedId, TInt aStatusCode); |
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/** |
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* Called upon start of the task. |
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* |
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* @since 3.1 |
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* @param . |
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* @return connection |
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*/ |
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virtual CHttpConnection& HttpConnection(); |
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public: |
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/** |
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* Adding the FeedIDs for updation . |
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* |
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* @since 7.1 |
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* @param aFeedIds. |
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* @return Integer |
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*/ |
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TInt AddFeedL( RArray<TInt> aFeedIds); |
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/** |
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* Called upon completion of the task. |
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* |
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* @since 7.1 |
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* @param aStatusCode The completion status of the request. |
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* @return Void |
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*/ |
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void UpdateAllFeedsCompleted(TInt aStatusCode); |
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private: |
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/** |
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* C++ default constructor. |
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*/ |
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CUpdateAllFeedsTask(CFeedsServer& aFeedsServer, TInt aFolderListId, |
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MUpdateAllFeedsTaskObserver& aObserver, TBool aSelected); |
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/** |
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* By default Symbian 2nd phase constructor is private. |
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*/ |
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void ConstructL(); |
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/** |
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* Starts the update of the next feed. |
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* |
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* @since 3.1 |
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* @return void. |
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*/ |
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void UpdateNextFeedL(); |
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private: |
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TLeakTracker iLeakTracker; |
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MUpdateAllFeedsTaskObserver& iObserver; |
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TInt iFolderListId; |
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RArray<TInt> iFeedIds; |
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TInt iNextFeedIndex; |
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CUpdateFeedTask* iUpdateFeedTask; |
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TBool iSelected; |
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CCheckDiskSpace* iCheckDiskSpace ; |
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}; |
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/** |
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* Checks disk space. |
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* |
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* \b Library: FeedsEngine.lib |
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* |
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* @since 7.1 |
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*/ |
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// CLASS DECLARATION |
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class CCheckDiskSpace : public CActive |
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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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static CCheckDiskSpace* NewL(CUpdateAllFeedsTask*); |
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/** |
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* Destructor. |
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*/ |
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~CCheckDiskSpace(); |
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private:// Constructor |
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/** |
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* C++ default constructor. |
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*/ |
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CCheckDiskSpace(); |
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/** |
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* By default Symbian 2nd phase constructor is private. |
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* |
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* @param pointer to CFeedsServer class,This pointer will be used to make server sleep and to wake up server |
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* |
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*/ |
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void ConstructL(CUpdateAllFeedsTask*); |
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public: //Functions from CActive Class |
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/** |
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* Handles an active object's request completion event. |
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* |
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* @since 7.1 |
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* @return void. |
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*/ |
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void RunL(); |
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/** |
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* Called by CActiveScheduler when RunL() Method leaves. |
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* |
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* @since 7.1 |
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* @return void. |
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*/ |
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void RunError(); |
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/** |
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* Called by CActiveScheduler when Cancel() Method is called. |
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* |
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* @since 7.1 |
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* @return void. |
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*/ |
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void DoCancel(); |
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/** |
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* This method subscribe to receive event when OS level |
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* when the memory in the C: drive falls below a certain level |
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* |
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* @since 7.1 |
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* @return void. |
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*/ |
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void StartListening(); |
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private: |
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CUpdateAllFeedsTask* iUpdateAllFeedsTask; |
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RFs iRfs; |
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TBool iIsListening; |
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}; |
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#endif // UPDATE_ALL_FEEDS_TASK_H |
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// End of File |