diff -r 000000000000 -r c6b0df440bee dbgagents/trkagent/tcbserver/TrkTcbSrvSessionEngine.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dbgagents/trkagent/tcbserver/TrkTcbSrvSessionEngine.cpp	Tue Mar 02 10:33:16 2010 +0530
@@ -0,0 +1,168 @@
+/*
+* 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));
+}
+
+