/*

* Copyright (c) 2004-2009 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: 

* Implementation of the CFileSisDataProvider

*

*/

#include <f32file.h> 

#include "filesisdataprovider.h"

using namespace Swi;

EXPORT_C CFileSisDataProvider* CFileSisDataProvider::NewL(RFs& aFs, const TFileName& aFileName, TInt aFileMode)

	{

	CFileSisDataProvider* self=CFileSisDataProvider::NewLC(aFs, aFileName, aFileMode);

	CleanupStack::Pop(self);

	return self;

	}

EXPORT_C CFileSisDataProvider* CFileSisDataProvider::NewLC(RFs& aFs, const TFileName& aFileName, TInt aFileMode)

	{

	CFileSisDataProvider* self=new(ELeave) CFileSisDataProvider(aFs);

	CleanupStack::PushL(self);

	self->ConstructL(aFileName, aFileMode);

	return self;	

	}

EXPORT_C CFileSisDataProvider* CFileSisDataProvider::NewL(RFile& aFileHandle)

	{

	CFileSisDataProvider* self=CFileSisDataProvider::NewLC(aFileHandle);

	CleanupStack::Pop(self);

	return self;

	}

EXPORT_C CFileSisDataProvider* CFileSisDataProvider::NewLC(RFile& aFileHandle)

	{

	CFileSisDataProvider* self=new(ELeave) CFileSisDataProvider(aFileHandle);

	CleanupStack::PushL(self);

	return self;	

	}

CFileSisDataProvider::CFileSisDataProvider(RFs& aFs)

	: iFs(aFs), iCloseHandle(ETrue)

	{

	}

CFileSisDataProvider::CFileSisDataProvider(RFile& aFileHandle)

	: iFile(aFileHandle), iCloseHandle(EFalse)

	{

	}

void CFileSisDataProvider::ConstructL(const TFileName& aFileName, TInt aFileMode)

	{

	User::LeaveIfError(iFile.Open(iFs, aFileName, aFileMode)); 

	}

EXPORT_C CFileSisDataProvider::~CFileSisDataProvider()

	{

	if (iCloseHandle)

		{

		iFile.Close();

		}

	}

// From MSisDataProvider

EXPORT_C TInt CFileSisDataProvider::Read(TDes8& aDes)

	{

	return iFile.Read(aDes);

	}

EXPORT_C TInt CFileSisDataProvider::Read(TDes8& aDes, TInt aLength)

	{

	return iFile.Read(aDes, aLength);

	}

EXPORT_C TInt CFileSisDataProvider::Seek(TSeek aMode, TInt64& aPos)

	{

	if (aPos < TInt64(KMinTInt32) || TInt64(KMaxTInt32) < aPos)

		{

		return KErrNotSupported;

		}

	TInt pos=I64INT(aPos);

	TInt32 err=iFile.Seek(aMode, pos);

	aPos=pos;

	return err;

	}