/*

* Copyright (c) 2009 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:

*

*/

#ifndef MEMSPYDRIVERSUSPENSIONMANAGER_H

#define MEMSPYDRIVERSUSPENSIONMANAGER_H

// System includes

#include <e32cmn.h>

#include <kern_priv.h>

// Classes referenced

class DMemSpyDriverDevice;

class DMemSpySuspensionManager : public DBase

	{

public: // Construct & destruct

	DMemSpySuspensionManager( DMemSpyDriverDevice& aDevice );

	~DMemSpySuspensionManager();

	TInt Construct();

public: // API

    TBool IsSuspended( TUint aPid ) const;

    TBool IsSuspended( DThread& aThread ) const;

    TBool IsSuspended( DProcess& aProcess ) const;

    TInt SuspendAllThreadsInProcess( TUint aPid, DThread& aClientThread );

    TInt ResumeAllThreadsInProcess( TUint aPid, DThread& aClientThread );

private: // Internal methods

    TInt DoSuspendAllThreadsInProcess( TUint aPid, DThread* aClientThread = NULL );

    TInt DoResumeAllThreadsInProcess( TUint aPid, DThread* aClientThread = NULL );

    TBool IsProcessTheClientThread( TUint aPid, DThread& aClientThread ) const;

    TBool CheckProcessSuspended( TUint aExpectedPid, DThread& aClientThread ) const;

	TInt OpenTempObject(TUint aId, TObjectType aType );

	void CloseTempObject();

private: // Data members

    DMemSpyDriverDevice& iDevice;

	DObject* iTempObj;

    TBool iAlreadySuspended;

	TUint iSuspendedProcessId;

	TInt iSuspendCount;

	};

#endif