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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: Declaration of the class DAnalyzeToolEventHandler.
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*
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*/
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#ifndef __ANALYZETOOLEVENTHANDLER_H__
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#define __ANALYZETOOLEVENTHANDLER_H__
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// INCLUDES
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#include <analyzetool/analyzetool.h>
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#include "atlog.h"
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#include <kernel/kernel.h>
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// CLASS DECLARATION
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/**
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* Callback class for kernel events
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*/
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class DAnalyzeToolEventHandler : public DKernelEventHandler
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{
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public:
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/**
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* C++ default constructor.
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*/
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inline DAnalyzeToolEventHandler( TDfcQue* aDfcQ );
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/**
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* Destructor.
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*/
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~DAnalyzeToolEventHandler();
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/**
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* Second stage constructor.
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* @param aDevice A pointer to device where the event handler belongs.
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* @param aProcessId Owner process id.
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* @return TInt Returns KErrNone, if successful
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otherwise one of the other system-wide error codes
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*/
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TInt Create( DLogicalDevice* aDevice, const TUint aProcessId );
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/**
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* Subscribes library event.
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* @param aStatus The request status object for this request.
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* @param aLibraryInfo The library information which
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is filled by the device driver
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* @param aMessage Reference to received thread message.
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* @return TInt Returns KErrNone, if successful
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otherwise one of the other system-wide error codes
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*/
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void InformLibraryEvent( TRequestStatus* aStatus,
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TAny* aLibraryInfo,
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TThreadMessage& aMessage );
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/**
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* Cancels subscribetion of the library event.
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*/
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void CancelInformLibraryEvent();
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/**
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* Static function for DFC events.
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* @param aPtr Pointer to DAnalyzeToolEventHandler object.
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*/
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static void EventDfc( TAny* aPtr );
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private:
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/**
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* Pointer to callback function called when an event occurs.
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* @param aEvent Designates what event is dispatched.
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* @param a1 Event-specific paramenter.
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* @param a2 Event-specific paramenter.
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* @param aThis A pointer to the event handler
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* @return TUint Bitmask returned by callback function.
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*/
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static TUint EventHandler( TKernelEvent aEvent,
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TAny* a1,
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TAny* a2,
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TAny* aThis );
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private:
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/**
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* Handles the EEventAddLibrary and EEventRemoveLibrary events
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* @param aLib* A pointer to added/removed library.
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* @param aThread* A pointer to thread where the libary is.
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* @param aInfo* A reference class to be written to the client
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*/
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void HandleLibraryEvent( DLibrary* aLib,
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DThread* aThread,
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TLibraryEventInfo& aInfo );
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/**
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* Handles the EEventKillThread events
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* @param aThread* A pointer to the thread being terminated.
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* @param aInfo* A reference class
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*/
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void HandleKillThreadEvent( DThread* aThread,
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TLibraryEventInfo& aInfo );
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/**
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* Informs client about the occured event
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*/
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void DoEventComplete();
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private:
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/* Mutex for serializing access to event handler */
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DMutex* iHandlerMutex;
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/* Mutex fof serializing access to event handler variables */
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DMutex* iDataMutex;
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/* If the client is a RAM-loaded LDD (or PDD), it is possible for the DLL to
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be unloaded while the handler is still in use. This would result in an
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exception. To avoid this, the handler must open a reference to the
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DLogicalDevice (or DPhysicalDevice) and close it in its d'tor. */
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DLogicalDevice* iDevice;
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/* Owner process ID */
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TUint iProcessId;
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/* Event array */
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RArray<TLibraryEventInfo> iEventArray;
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/* Pointer to client's TRequestStatus */
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TRequestStatus* iClientRequestStatus;
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/* Pointer to client's thread */
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DThread* iClientThread;
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/* Pointer to client's TLibraryEventInfo */
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TAny* iClientInfo;
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/* DFC for informing events to the client */
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TDfc iEventDfc;
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};
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// ----------------------------------------------------------------------------
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// DAnalyzeToolEventHandler::DAnalyzeToolEventHandler()
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// C++ default constructor.
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// ----------------------------------------------------------------------------
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//
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inline DAnalyzeToolEventHandler::DAnalyzeToolEventHandler( TDfcQue* aDfcQ ) :
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DKernelEventHandler( EventHandler, this ),
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iEventDfc( EventDfc, this, 1 )
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{
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LOGSTR1( "ATDD DAnalyzeToolEventHandler::DAnalyzeToolEventHandler()" );
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iEventDfc.SetDfcQ( aDfcQ );
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}
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#endif // __ANALYZETOOLEVENTHANDLER_H__
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// End of File
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