activityfw/activitydatabase/hsactivitydbserver/inc/activityobservertask.h
author hgs
Tue, 01 Jun 2010 11:30:17 +0300
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permissions -rw-r--r--
201021_02
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/*
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* Copyright (c) 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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#ifndef ACTIVITYOBSERVERTASK_H
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#define ACTIVITYOBSERVERTASK_H
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// INCLUDES
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#include <e32std.h>
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#include <e32base.h>
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#include "activitytask.h"
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#include "activitytaskstorage.h"
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/**
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 *  CActivityObserverTask
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 * 
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 */
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class CActivityObserverTask : public CActivityTask
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{
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public:
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    /**
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     * Destructor.
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     */
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    ~CActivityObserverTask();
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    /**
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     * Handle observer request. 
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     * @param globalStorage - global observers storage
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     * @param localStorage - local observers storage
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     * @param msg - request message
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     */
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    static void ExecuteLD(MActivityTaskStorage& globalStorage, 
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                          MActivityTaskStorage& localStorage,
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                          const RMessage2& msg);
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    /**
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     * Interface implementation
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     * @see CActivityTask::Data()
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     */
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    const TDesC8& Data() const;
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    /**
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     * Interface implementation
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     * @see CActivityTask::BroadcastReceivedL(const RMessage2&)
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     */
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    void BroadcastReceivedL(const RMessage2& );
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private:
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    /**
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     * Constructor for performing 1st stage construction
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     * @param globalStorage - global observers storage
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     * @param localStorage - local observers storage
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     * @param msg - request message
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     */
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    CActivityObserverTask(MActivityTaskStorage& globalStorage, 
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                          MActivityTaskStorage& localStorage,
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                          const RMessage2& msg);
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    /**
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     * Write response data to requested message 
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     */
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    void WriteResponseL();
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    /**
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     * Returns ETrue if task is related with session argument
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     */
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    TBool IsSessionTask(const CSession2* session);
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private:
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    MActivityTaskStorage& mGlobalStorage;
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    MActivityTaskStorage& mLocalStorage;
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    const RMessage2 mMsg;
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    RBuf8 mData;
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};
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#endif // ACTIVITYOBSERVERTASK_H