// 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 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 Symbian OS server that exposes the RUsbMassStorage API

 // 

 //

 /**

  @file

  @internalTechnology

 */

 #include <e32svr.h>

 #include <f32file.h>

 #include "usbmsshared.h"

 #include "mstypes.h"

 #include "msctypes.h"

 #include "usbmsclientpanic.h"

 #include "cusbmassstorageserver.h"

 #include "cusbmassstoragesession.h"

 #include "cusbmassstoragecontroller.h"

 #include "debug.h"

 #include "usbmsserversecuritypolicy.h"

 /**

  Constructs a USB mass storage Server

  @return  a pointer to CUsbMassStorageServer object

  */

 CUsbMassStorageServer* CUsbMassStorageServer::NewLC(CUsbMassStorageController& aController)

 	{

 	CUsbMassStorageServer* r = new (ELeave) CUsbMassStorageServer(aController);

 	CleanupStack::PushL(r);

 	r->StartL(KUsbMsServerName);

 	return r;

 	}

 /**

  Destructor

  */

 CUsbMassStorageServer::~CUsbMassStorageServer()

 	{

     // Intentionally left blank

 	}

 /**

  Constructor

  @param aController a USB mass storage controller reference

  */

 CUsbMassStorageServer::CUsbMassStorageServer(CUsbMassStorageController& aController)

      : CPolicyServer(EPriorityHigh,KUsbMsServerPolicy)

     , iController(aController)

 	{

     __PRINT(_L("CUsbMassStorageServer::CUsbMassStorageServer\n"));

 	}

 /**

  Create a new session on this server

  @param	&aVersion	Version of client

  @return	A pointer to a session object to be used for the client

  */

 CSession2* CUsbMassStorageServer::NewSessionL(const TVersion &aVersion, const RMessage2& /*aMessage*/) const

 	{

 	TVersion v(KUsbMsSrvMajorVersionNumber,KUsbMsSrvMinorVersionNumber,KUsbMsSrvBuildVersionNumber);

 	__PRINT(_L("CUsbMassStorageServer::NewSessionL\n"));

 	if (!User::QueryVersionSupported(v, aVersion))

 		User::Leave(KErrNotSupported);

 	CUsbMassStorageServer* ncThis = const_cast<CUsbMassStorageServer*>(this);

 	CUsbMassStorageSession* sess = CUsbMassStorageSession::NewL(*ncThis);

 	return sess;

 	}

 /**

  Inform the client there has been an error.

  @param	aError	The error that has occurred

  */

 void CUsbMassStorageServer::Error(TInt aError)

 	{

 	__PRINT1(_L("CUsbMassStorageServer::Error [aError=%d]\n"), aError);

 	Message().Complete(aError);

 	ReStart();

 	}

 /**

  Increment the open session count (iSessionCount) by one.

  @post	the number of open sessions is incremented by one

  */

 void CUsbMassStorageServer::IncrementSessionCount()

 	{

 	__PRINT1(_L("CUsbMassStorageServer::IncrementSessionCount %d\n"), iSessionCount);

 	__ASSERT_DEBUG(iSessionCount >= 0, User::Panic(KUsbMsClientPanicCat, EUsbMsPanicIllegalIPC));

 	++iSessionCount;

 	__PRINT(_L("CUsbMassStorageServer::IncrementSessionCount\n"));

 	}

 /**

  Decrement the open session count (iSessionCount) by one.

  @post		the number of open sessions is decremented by one

  */

 void CUsbMassStorageServer::DecrementSessionCount()

 	{

 	__PRINT1(_L("CUsbMassStorageServer::DecrementSessionCount %d\n"), iSessionCount);

 	__ASSERT_DEBUG(iSessionCount > 0, User::Panic(KUsbMsClientPanicCat, EUsbMsPanicIllegalIPC));

 	--iSessionCount;

 	}