diff -r 000000000000 -r 2014ca87e772 imagehandlingutilities/thumbnailmanager/thumbnailserver/inc/thumbnailtaskprocessor.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/imagehandlingutilities/thumbnailmanager/thumbnailserver/inc/thumbnailtaskprocessor.h Tue Jan 26 15:18:05 2010 +0200 @@ -0,0 +1,186 @@ +/* +* Copyright (c) 2006-2007 Nokia Corporation and/or its subsidiary(-ies). +* All rights reserved. +* This component and the accompanying materials are made available +* under the terms of "Eclipse Public License v1.0" +* which accompanies this distribution, and is available +* at the URL "http://www.eclipse.org/legal/epl-v10.html". +* +* Initial Contributors: +* Nokia Corporation - initial contribution. +* +* Contributors: +* +* Description: Processor object for running queued tasks + * +*/ + + +#ifndef THUMBNAILTASKPROCESSOR_H +#define THUMBNAILTASKPROCESSOR_H + +#include "thumbnailmanager.h" // TThumbnailFlags +#include "thumbnailmanagerconstants.h" // TThumbnailServerRequestId +#include "thumbnailprovider.h" +#include + + +class CThumbnailTask; + +/** + * Processor object for running queued tasks. + * + * @since S60 v5.0 + */ +class CThumbnailTaskProcessor: public CActive + { +public: + + /** + * Two-phased constructor. + * + * @since S60 v5.0 + * @return Instance of CThumbnailTaskProcessor. + */ + static CThumbnailTaskProcessor* NewL(); + + /** + * Destructor + * + * @since S60 v5.0 + */ + virtual ~CThumbnailTaskProcessor(); + + /** + * Adds new task to the task queue. + * + * @since S60 v5.0 + * @param aTask Task to be added to the queue. + */ + void AddTaskL( CThumbnailTask* aTask ); + + /** + * Removes specific task from the queue. + * + * @since S60 v5.0 + * @param aRequestId ID of the task to be removed. + */ + TInt RemoveTask( const TThumbnailServerRequestId& aRequestId ); + + /** + * Removes specific task from the queue. + * + * @since S60 v5.0 + * @param aSession Identifier for task to be removed. + */ + void RemoveTasks( CThumbnailServerSession* aSession ); + + /** + * Removes all tasks from the queue. + * + * @since S60 v5.0 + */ + + void RemoveAllTasks(); + + /** + * Changes priority of a task. + * + * @since S60 v5.0 + * @param aRequestId ID of the task. + * @param aNewPriority New priority to be assigned to the task. + */ + TInt ChangeTaskPriority( const TThumbnailServerRequestId& aRequestId, const + TInt aNewPriority ); + + /** + * Marks task to completed. + * + * @since S60 v5.0 + * @param aTask Completed task. + */ + void TaskComplete( CThumbnailTask* aTask ); + + void SetDaemonAsProcess(TBool aValue); + +protected: + // from base class CActive + + /** + * Handles an active object's request completion event. + * + * @since S60 v5.0 + */ + void RunL(); + + /** + * Implements cancellation of an outstanding request. + * + * @since S60 v5.0 + */ + void DoCancel(); + + /** + * Handles a leave occurring in the request completion event handler + * RunL(). + * + * @since S60 v5.0 + * @return Error code. + */ + TInt RunError( TInt aError ); + +private: + + /** + * C++ default constructor + * + * @since S60 v5.0 + * @return Instance of CThumbnailTaskProcessor. + */ + CThumbnailTaskProcessor(); + + /** + * Symbian 2nd phase constructor can leave. + * + * @since S60 v5.0 + */ + void ConstructL(); + + /** + * Callback for harvesting complete timer + * + * @since S60 v5.0 + */ + static TInt PeriodicTimerCallBack(TAny* aAny); + +private: + // data + + /** + * Task queue. Task objects are own by this class. + * Own. + */ + RPointerArray < CThumbnailTask > iTasks; + + /** + * Current active task. Not own. + */ + CThumbnailTask* iActiveTask; + + /** + * PS used to notify Daemon when server is idle + */ + RProperty iProperty; + /** + * Holds current idle value + */ + TBool iIdle; + + CPeriodic* iPeriodicTimer; + + TBool iTimerActive; + + TBool iIsDaemonAsProcess; +}; + +#endif // THUMBNAILTASKPROCESSOR_H