--- /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 <e32property.h>
+
+
+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