/*

* 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 "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: 

*

*/

#include "filedump.h"

//////////////////////////////////////////////////////////////////////////

// Open the output file

//////////////////////////////////////////////////////////////////////////

GLDEF_C TInt 

FileDump::Init(RFs &fsSession, TPtrC16 filename, CConsoleBase* console)

{

	/*

	// To determine the date and create a string.

	static const TInt defLength = 256;

	int exception = KErrNone;

	TBuf<defLength> fileDateName( _L("") );

	TTime date;

	date.HomeTime();	

	TRAP( exception, date.FormatL(fileDateName, (_L("%F%Y%M%D"))) );

	*/

	/*

	// To either open an existing file or create a new file.

	TFileMode shareMode = static_cast<TFileMode>(EFileShareAny|EFileStream|EFileWrite);

	TInt err = file.Open( fsSession, fileDateName, shareMode );

	if ( err == KErrNotFound )

	    {

	    err = file.Create( fsSession, fileDateName, shareMode );

	    }

	*/

   	if (file.Replace(fsSession, filename, EFileShareAny|EFileStream|EFileWrite) == KErrNone)

	{

		pConsole = console;

		bInitialised = ETrue;

		return ETrue;

	}

	return EFalse;

}

GLDEF_C void

FileDump::Msg(TPtrC16 text, ...)

{

	int exception = KErrNone;

	if (bInitialised && text.Length())

	{

		// create date/time string for filename

		TBuf<10> datestring( _L("") );

		TTime DateAndTime;

		DateAndTime.HomeTime();	

		TRAP( exception, DateAndTime.FormatL(datestring, (_L("%H:%T:%S "))) );

		if( exception == KErrNone ) {

			buf.Zero();

			buf.Append(datestring);

			buf.ZeroTerminate();

			WriteBuffer16ToFile(buf, file);

		}

		VA_LIST list;

		VA_START(list, text);

		buf.Zero();

		buf.FormatList(text, list);

		buf.Append(_L("\r\n"));

		buf.ZeroTerminate();

		if (pConsole)

			pConsole->Printf(buf);

		WriteBuffer16ToFile(buf, file);

		VA_END(list);

	}

}

//////////////////////////////////////////////////////////////////////////

// Close the file

//////////////////////////////////////////////////////////////////////////

GLDEF_C void 

FileDump::CloseFile()

{

	if( bInitialised ) {

		file.Close();

	}

	bInitialised = EFalse;

}

GLDEF_C TBool

FileDump::WriteBuffer16ToFile(TDesC16 &buffer, RFile &handle)

{

	// keep buffer small to reduce memory usage

	TBuf8<5> outputBuffer;

	TPtrC16 ptr;

	TInt consumed;

	TInt remainder = 0;

	TBool valid = EFalse;

	if (buffer.Length())

	{

		ptr.Set(buffer);

		do

		{

			// get something to write

			consumed = Min(outputBuffer.MaxLength(), ptr.Length());

			// write it

			outputBuffer.Copy(ptr.Left(consumed));

			if (handle.Write(outputBuffer) != KErrNone)

				return EFalse;

			handle.Flush();

			// get the next chunk

			remainder = ptr.Length() - consumed;

			if (remainder > 0)

				ptr.Set(ptr.Right(remainder));

		}while (remainder > 0);

		valid = ETrue;

	}

	return valid;

}

GLDEF_C TBool

FileDump::IsInitialised() const

{

	return bInitialised;

}