// memsamplerdd.h

// 

// Copyright (c) 2008 - 2010 Accenture. All rights reserved.

// This component and the accompanying materials are made available

// under the terms of the "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:

// Accenture - Initial contribution

//

#ifndef __MEMSAMPLERDD_H__

#define __MEMSAMPLERDD_H__

#include <e32cmn.h>

#ifndef __KERNEL_MODE__

#include <e32std.h>

#endif

//Uncomment this line to generate debug logging of the profiler and sampler.

#define DEBUG_MEMSAMPLER(f) f

//#define DEBUG_MEMSAMPLER(f)

/**

 * The user device driver class for controlling the memory usage sampler.

 */

class RMemSampler : public RBusLogicalChannel

	{

public:

	enum

		{

		EBtraceCategory = 253

		};

	enum

		{

		ENewChunk,

		EChangedChunk,

		EDeletedChunk,

		ENewSample

		};

	friend class DMemSamplerChannel;

private:

	enum TControl

		{

		EControlStartProfile,

		EControlStopProfile,

		EControlResetProfile

		};

	enum TRequest

		{

		ERequestRead

		};

	static inline TInt CancelRequest(TRequest aRequest);

public:

#ifndef __KERNEL_MODE__

	inline TInt Open();

	inline void Start(TInt aRate);

	inline void Stop();

	inline void Reset();

#endif

	};

_LIT(KMemSamplerName,"memsamplerdd");

#ifndef __KERNEL_MODE__

inline TInt RMemSampler::Open()

	{return DoCreate(KMemSamplerName,TVersion(1,0,0),KNullUnit,NULL,NULL);}

inline void RMemSampler::Start(TInt aRate)

	{DoControl(EControlStartProfile, reinterpret_cast<TAny*>(aRate));}

inline void RMemSampler::Stop()

	{DoControl(EControlStopProfile);}

inline void RMemSampler::Reset()

	{DoControl(EControlResetProfile);}

#endif

#endif