// 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:

 //

 /**

  @file

  @internalTechnology

 */

 #include <e32std.h>

 #include <f32file.h>

 #include "msmanclientserver.h"

 #include "rusbhostsession.h"

 #include "tmslog.h"

 #include "debug.h"

 TVersion RUsbHostSession::Version() const

     {

     __MSFNSLOG

     return(TVersion(KUsbHostSrvMajorVersionNumber,

                     KUsbHostSrvMinorVersionNumber,

                     KUsbHostSrvBuildVersionNumber));

     }

 EXPORT_C RUsbHostSession::RUsbHostSession()

     {

     __MSFNSLOG

     }

 EXPORT_C TInt RUsbHostSession::Connect()

     {

     __MSFNSLOG

     TInt retry = 2;

     for (;;)

         {

         TInt r = CreateSession(KUsbHostServerName, Version());

         if ((r != KErrNotFound) && (r != KErrServerTerminated))

             {

             return r;

             }

         if (--retry == 0)

             {

             return r;

             }

         r = StartServer();

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

             {

             return r;

             }

         }

     }

 TInt RUsbHostSession::StartServer()

     {

     __MSFNSLOG

     const TUidType serverUid(KNullUid, KNullUid, KUsbHostServerUid3);

     // Create the server process

     RProcess server;

     TInt r = server.Create(KUsbHostServerName, KNullDesC, serverUid);

     if (r != KErrNone)

         {

         return r;

         }

     // Create the rendezvous request with the server process

     TRequestStatus status;

     server.Rendezvous(status);

     if (status != KRequestPending)

         {

         User::WaitForRequest(status);

         server.Kill(0);    // If the outstanding request is not pending then kill the server

         server.Close();

         return status.Int();

         }

 	server.SetPriority(EPriorityHigh);

     server.Resume(); // start the server

     // Test whether the process has ended and if it has ended, return how it ended.

     User::WaitForRequest(status);

     if (status == KRequestPending)

         {

         server.Close();

         return status.Int();

         }

     server.Close();

     return KErrNone;

     }

 EXPORT_C TInt RUsbHostSession::Start()

 	{

 	return SendReceive(EUsbHostStart);

 	}