// Copyright (c) 2005-2009 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:

// Name          : SIPServerStarter.cpp

// Part of       : SIPClient

// Version       : SIP/4.0 

//

#include <e32math.h>

#include "SIPServerStarter.h"

#include "sipclientserver.h"

#include "sipclient.pan"

_LIT(KSipServerStarterMutex, "SipServerStarterMutex");

#define RETURN_IF_ERROR(err) {TInt _err=err; if(_err!=KErrNone) {return _err;}}

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

// SIPServerStarter::Start

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

//

TInt SIPServerStarter::Start ()

	{

	TInt err = KErrNone;

    RMutex mutex;

    err = mutex.CreateGlobal(KSipServerStarterMutex);

    if (err != KErrNone)

        {

        err = mutex.OpenGlobal(KSipServerStarterMutex);

        if (err != KErrNone)

            {

            return err;

            }

        }

    mutex.Wait();   

        {

        // Protected with a mutex

        TFindServer findServer(KSipServerName);

        TFullName name;

	    if (findServer.Next(name) == KErrNone) 

            {

            mutex.Signal();

            mutex.Close();

            return KErrNone; // Server already running

            }

	    RSemaphore semaphore;

	    err = semaphore.CreateGlobal(KSipServerSemaphoreName,0);

	    if (err == KErrNone)

		    {

	        err = CreateServerProcess(semaphore);

	        semaphore.Close();

		    }

        }

    mutex.Signal();

    mutex.Close();

    return err;

	}

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

// SIPServerStarter::CreateServerProcess

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

//

TInt SIPServerStarter::CreateServerProcess (RSemaphore& aSemaphore)

	{

	const TUidType serverUid (KNullUid, KNullUid, KServerUid3);

	RProcess server;

	RETURN_IF_ERROR(server.Create(KSipServerName,KNullDesC,serverUid))

	server.Resume ();

	aSemaphore.Wait();

	TInt exitReason = server.ExitReason();

	server.Close ();

    return exitReason;

	}