/*

* Copyright (c) 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 "TrkTcbSrvSessionEngine.h"

// System includes

#include <e32debug.h>

// User includes

// Type definitions

// Constants

// Enumerations

// Classes referenced

//

// CTrkTcbSrvSessionEngine (source)

//

//

// CTrkTcbSrvScheduler::CTrkTcbSrvSessionEngine()

//

// Constructor

//

CTrkTcbSrvSessionEngine::CTrkTcbSrvSessionEngine() : iFileState(EFileUnknown)

{

}

//

// CTrkTcbSrvScheduler::~CTrkTcbSrvSessionEngine()

//

// Destructor

//

CTrkTcbSrvSessionEngine::~CTrkTcbSrvSessionEngine()

{

}

//

// CTrkTcbSrvScheduler::ConstructL()

//

// Second level constructor

//

void CTrkTcbSrvSessionEngine::ConstructL()

{

	//nothing right now

}

//

// CTrkTcbSrvScheduler::NewL()

//

// Creates an instance of CTrkTcbSrvSessionEngine

//

CTrkTcbSrvSessionEngine* CTrkTcbSrvSessionEngine::NewL()

{

	CTrkTcbSrvSessionEngine* self = new(ELeave) CTrkTcbSrvSessionEngine();

	CleanupStack::PushL(self);

	self->ConstructL();

	CleanupStack::Pop(self);

	return self;

}

//

// CTrkTcbSrvScheduler::OpenFileL()

//

// Opens the specified file

//

void CTrkTcbSrvSessionEngine::OpenFileL(const TDesC& aFilePath, TUint aMode, TTime& aModifiedTime)

{	

	//just for testing

	TBuf8<KMaxPath> fileName;

	fileName.Copy(aFilePath);

	iMode = aMode; //copy  the mode, for properly closing the file.

	User::LeaveIfError(iFs.Connect());

	TInt error = iFs.MkDirAll(aFilePath);

	if ((KErrNone != error) && (KErrAlreadyExists != error))

	{

		iFs.Close();

		User::Leave(error);

	}

	error = iFile.Open(iFs, aFilePath, aMode);

	if (KErrNone != error)

		User::LeaveIfError(iFile.Replace(iFs, aFilePath, aMode));

	// get the modification date

	User::LeaveIfError(iFile.Modified(aModifiedTime));

	iFileState = EFileOpened;

}

//

// CTrkTcbSrvScheduler::ReadFileL()

//

// Reads from the already opened file

//

void CTrkTcbSrvSessionEngine::ReadFileL(TDes8& aFileData)

{

	iFileState = EFileReading;

	User::LeaveIfError(iFile.Read(aFileData));

}

//

// CTrkTcbSrvScheduler::WriteFileL()

//

// Writes to an already opened file

//

void CTrkTcbSrvSessionEngine::WriteFileL(const TDesC8& aFileData)

{

	if (iFileState == EFileOpened)

	{

		iFile.SetSize(0);

		iFileState = EFileWriting;

	}

	User::LeaveIfError(iFile.Write(aFileData));	

	User::LeaveIfError(iFile.Flush());

}

//

// CTrkTcbSrvScheduler::CloseFileL()

//

// Closes an already opened file

//

void CTrkTcbSrvSessionEngine::CloseFileL(const TTime& aModifiedTime)

{

	//set the modification time only if the file is opened in write mode

	if (iMode & EFileWrite)

	{

		User::LeaveIfError(iFile.SetModified(aModifiedTime));

		User::LeaveIfError(iFile.Flush());

	}

	iFile.Close();

	iFs.Close();

	iFileState = EFileClosed;

}

//

// CTrkTcbSrvScheduler::PositionFileL()

//

// Changes the positions in an already opened file

//

void CTrkTcbSrvSessionEngine::PositionFileL(TSeek aSeek, TInt& aOffset)

{

	User::LeaveIfError(iFile.Seek(aSeek, aOffset));

}