// Copyright (c) 2000-2009 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 "CCopyOneFile.h"

const TInt KCopyFileBufferSize=32768;

CCopyOneFile* CCopyOneFile::NewL(RFs &aFs)

	{

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

	CleanupStack::PushL(self);

	self->ConstructL();

	CActiveScheduler::Add(self);

	CleanupStack::Pop();

	return(self);

	}

void CCopyOneFile::Copy(const TFileName &aFrom, const TFileName &aTo,TRequestStatus& aStatus)

	{

	aStatus=KRequestPending;

	iReportStatus=&aStatus;

	TInt error=iFrom.Open(iFs,aFrom,EFileRead|EFileShareReadersOnly);

	if(error==KErrNone)

		{

		error=iTo.Replace(iFs,aTo,EFileWrite|EFileShareExclusive);

		if(error==KErrNone)

			{

			iFrom.Read(*iFileBuffer,KCopyFileBufferSize,iStatus);

			iReading=ETrue;

			SetActive();

			}

		}

	if(error!=KErrNone)

		Complete(error);

	}

void CCopyOneFile::Copy(RFile& aFrom, RFile& aTo, TRequestStatus& aStatus)

	{	

	aStatus=KRequestPending;

	iReportStatus=&aStatus;

	iFrom = aFrom;

	iTo = aTo;

	iFrom.Read(*iFileBuffer,KCopyFileBufferSize,iStatus);

	iReading=ETrue;

	SetActive();

	}

void CCopyOneFile::RunL()

	{

	User::LeaveIfError(iStatus.Int());

	if(iReading==EFalse)

		{

		if(iFileBuffer->Length()<KCopyFileBufferSize)

			// didn't read a full buffer last time, so its the end

			Complete(KErrNone);

		else

			{

			iFrom.Read(*iFileBuffer,iStatus);

			iReading=ETrue;

			SetActive();

			}

		}

	else

		{

		iTo.Write(*iFileBuffer,iStatus);

		iReading=EFalse;

		SetActive();

		}

	}

void CCopyOneFile::DoCancel()

	{

	Complete(KErrCancel);

	}

TInt CCopyOneFile::RunError(TInt aError)

	{

	Complete(aError);

	return(KErrNone);

	}

void CCopyOneFile::ConstructL()

	{

	iFileBuffer= new (ELeave) TBuf8<KCopyFileBufferSize>;

	}

CCopyOneFile::CCopyOneFile(RFs &aFs) : CActive(EPriorityStandard), iFs(aFs)

	{

	}

CCopyOneFile::~CCopyOneFile()

	{

	Cancel();

	delete iFileBuffer;

	}

void CCopyOneFile::Complete(TInt aError)

	{

	iFrom.Close();

	iTo.Close();

	if(iReportStatus) 

		User::RequestComplete(iReportStatus,aError);

	}