diff -r 000000000000 -r a41df078684a userlibandfileserver/fileserver/smassstorage/cusbmassstoragesession.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/userlibandfileserver/fileserver/smassstorage/cusbmassstoragesession.cpp	Mon Oct 19 15:55:17 2009 +0100
@@ -0,0 +1,171 @@
+// 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:
+// Implements a Session of a Symbian OS server for the RUsbMassStorage API
+// 
+//
+
+/**
+ @file
+ @internalTechnology
+*/
+
+#include "cusbmassstoragesession.h"
+#include "cusbmassstoragecontroller.h"
+#include "cusbmassstorageserver.h"
+#include "usbmsshared.h"
+
+/**
+ Construct a Symbian OS session object.
+ 
+ @param	aServer		Service the session will be a member of
+ @param	aMessage	The message from the client.
+ @return	A new CUsbMassStorageSession object
+ */
+CUsbMassStorageSession* CUsbMassStorageSession::NewL(CUsbMassStorageServer& aServer)
+	{
+	CUsbMassStorageSession* r = new (ELeave) CUsbMassStorageSession(aServer);
+	CleanupStack::PushL(r);
+	r->ConstructL();
+	CleanupStack::Pop();
+	return r;
+	}
+
+/**
+ Constructor.
+ 
+ @param	aServer	Service the session will be a member of
+ */
+CUsbMassStorageSession::CUsbMassStorageSession(CUsbMassStorageServer& aServer)
+	: iUsbMsServer(aServer)
+	{
+    __PRINT(_L("CUsbMassStorageSession::CUsbMassStorageSession\n"));
+	}
+
+
+/**
+ 2nd Phase Construction.
+ */
+void CUsbMassStorageSession::ConstructL()
+	{
+	iUsbMsServer.IncrementSessionCount();
+    if (iUsbMsServer.SessionCount() > 1)
+        {
+        __PRINT1(_L("\tiSessionCount: %d\n"), iUsbMsServer.SessionCount());
+        // Only one session is allowed
+        User::Leave(KErrInUse);
+        }        
+ 	}
+
+
+/**
+ Destructor.
+ */
+CUsbMassStorageSession::~CUsbMassStorageSession()
+	{
+	iUsbMsServer.DecrementSessionCount();
+	}
+
+/**
+ Called when a message is received from the client.
+ 
+ @param	aMessage	Message received from the client
+ */
+void CUsbMassStorageSession::ServiceL(const RMessage2& aMessage)
+	{
+	DispatchMessageL(aMessage);
+	}
+
+/**
+ Handles the request (in the form of a the message) received from the client
+ 
+ @internalTechnology
+ @param	aMessage	The received message
+ */
+void CUsbMassStorageSession::DispatchMessageL(const RMessage2& aMessage)
+	{
+	TInt ret = KErrNone;
+	
+	switch (aMessage.Function())
+		{
+	case EUsbMsStart:
+		ret = Start(aMessage);
+		break;
+	case EUsbMsStop:
+		ret = Stop();
+		break;
+	case EUsbMsShutdown:
+		ret = Shutdown();
+		break;
+
+	default:
+		aMessage.Panic(KUsbMsCliPncCat, EUsbMsPanicIllegalIPC);
+		break;
+		}
+
+	aMessage.Complete(ret);
+	}
+
+/**
+ Client request to start the device.
+ 
+ @return	Any error that occurred or KErrNone
+ */
+TInt CUsbMassStorageSession::Start(const RMessage2& aMessage)
+	{
+	__PRINT(_L("CUsbMassStorageSession::Start\n"));
+
+	TMassStorageConfig msConfig;
+	TRAPD(err, GetMsConfigL(aMessage, msConfig));
+	if (err != KErrNone)
+		{
+		__PRINT(_L("Failed to get mass storage configuration data\n"));
+		return err;
+		}
+		
+	return iUsbMsServer.Controller().Start(msConfig);
+	}
+
+/**
+ Client request to stop the device.
+ 
+ @return	Any error that occurred or KErrNone
+ */
+TInt CUsbMassStorageSession::Stop()
+    {
+    __PRINT(_L("CUsbMassStorageSession::Stop\n"));
+    TInt err = iUsbMsServer.Controller().Stop();
+	return err;
+	}
+
+/**
+ Client request to shut down the server
+ 
+ @return KErrNone
+ */
+TInt CUsbMassStorageSession::Shutdown()
+    {
+    __PRINT(_L("CUsbMassStorageSession::Shutdown\n"));
+    CActiveScheduler::Stop();
+	return KErrNone;
+	}
+
+ /**
+  Get mass storage configuration data from the received message
+  */
+ void CUsbMassStorageSession::GetMsConfigL(const RMessage2& aMessage, TMassStorageConfig& aMsStorage)
+ 	{
+ 	aMessage.ReadL(0,aMsStorage.iVendorId);
+ 	aMessage.ReadL(1,aMsStorage.iProductId);
+ 	aMessage.ReadL(2,aMsStorage.iProductRev);
+ 	}