// Copyright (c) 2005-2009 Nokia Corporation and/or its subsidiary(-ies).

// All rights reserved.

// This component and the accompanying materials are made available

// under the terms of the License "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:

// e32test\debug\d_logtofile.h

// 

//

#ifndef __D_LOGTOFILE_H__

#define __D_LOGTOFILE_H__

#include <e32cmn.h>

#ifndef __KERNEL_MODE__

#include <e32std.h>

#endif

/**

Data structure for CreateChunk call to ldd

*/

struct TChunkCreateStr

{

TInt iSize;			/**The size of the chunk to be created*/

TBuf8<10> iPattern; /**The matching pattern*/

};

/**

The user side class for controlling trace handler hook.

*/

class RLogToFileDevice : public RBusLogicalChannel

	{

public:

	enum TControl

		{

		EControlCreateChunk,

		EControlStart,

		EControlStop,

		EControlRemoveChunk,

		};

public:

#ifndef __KERNEL_MODE__

	inline TInt Open(); 

	inline TInt CreateChunk(TChunkCreateStr* aStr);

	inline void Start();

	inline TInt Stop();

	inline void RemoveChunk();

#endif //__KERNEL_MODE__

	};

_LIT(KLogToFileName,"d_logtofile");

#ifndef __KERNEL_MODE__

/** Opens a channel*/

inline TInt RLogToFileDevice::Open()

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

/**Creates a chunk. Returns user side handle*/

inline TInt RLogToFileDevice::CreateChunk(TChunkCreateStr* aStr)

	{return DoControl(EControlCreateChunk, reinterpret_cast<TAny*>(aStr));}

/**Starts logging into the chunk*/

inline void RLogToFileDevice::Start()

	{DoControl(EControlStart);}

/**Stops logging into the chunk. Returns the size of the log.*/

inline TInt RLogToFileDevice::Stop()

	{return DoControl(EControlStop);}

/*Destroys the chunk*/

inline void RLogToFileDevice::RemoveChunk()

	{DoControl(EControlRemoveChunk);}

#endif //__KERNEL_MODE__

#endif //__D_LOGTOFILE_H__