/** @file

* Copyright (c) 2005-2006 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:  Implementation of RUpnpSessionBase

*

*/

#include "upnpsessionbase.h"

// ======== LOCAL FUNCTIONS ========

#include "upnpcustomlog.h"

// -----------------------------------------------------------------------------

// StartServer

// Static method to start the server.

// Start the server process. Simultaneous launching

// of two such processes should be detected when the second one attempts to

// create the server object, failing with KErrAlreadyExists.

// -----------------------------------------------------------------------------

//

static TInt StartServer( TUid aUid3, const TDesC& aFileName )

    {

    const TUidType serverUid( KNullUid, KNullUid, aUid3 );

    RProcess server;

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

    if ( r != KErrNone )

        {

        return r;

        }

    TRequestStatus stat;

    server.Rendezvous( stat );

    if ( stat != KRequestPending )

        {

        server.Kill( 0 ); // abort startup

        }

    else

        {

        server.Resume(); // logon OK - start the server

        }

    User::WaitForRequest( stat ); // wait for start or death

    // we can't use the 'exit reason' if the server panicked as this

    // is the panic 'reason' and may be '0' which cannot be distinguished

    // from KErrNone

    r = (server.ExitType() == EExitPanic) ? KErrGeneral : stat.Int();

    server.Close();

    return r;

    }

// -----------------------------------------------------------------------------

// RUpnpSessionBase::Connect

// Connect to the server, attempting to start it if necessary

// -----------------------------------------------------------------------------

EXPORT_C TInt RUpnpSessionBase::Connect( const TDesC& aServerName, TVersion aServerVersion,

    TInt aServerMessageSlots, TInt aServerStartRetryCount,

    const TDesC& aServerFileName, TUid aServerUid3 )

    {

    TInt retry = aServerStartRetryCount;

    for ( ;; )

        {

        TInt r = CreateSession( aServerName, aServerVersion, aServerMessageSlots );

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

            {

            return r;

            }

        if ( --retry == 0 )

            {

            return r;

            }

        r = StartServer( aServerUid3, aServerFileName );

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

            {

            return r;

            }

        }

    }