/*

 * Copyright (c) 2010 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:

 * The file provides the implementation of the client side session

 * to the STS Server.

 */

#include "rstssession.h"

#include "stsclientservercommon.h"

const TUint KNumSlots = 30;

TInt RStsSession::StartServer()

    {

    TInt err = KErrNone;

    // Launch the server executable (i.e. in it its own process).

    // Create a new server process. Simultaneous launching of two such processes 

    // should be detected when the second one attempts to create the server 

    // object, failing with KErrAlreadyExists.

    RProcess server;

    err = server.Create(KStsServerFile, KNullDesC);

    if (err == KErrNone)

        {

        TRequestStatus rendezvousStatus;

        server.Rendezvous(rendezvousStatus);

        if (rendezvousStatus != KRequestPending)

            {

            server.Kill(0); // abort startup

            }

        else

            {

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

            } // end if

        User::WaitForRequest(rendezvousStatus); // 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  

        err = (server.ExitType() == EExitPanic)

                                                ? KErrGeneral

                                                   : rendezvousStatus.Int();

        server.Close();

        }

    return err;

    }

TInt RStsSession::Connect()

    {

    TInt result = CreateSession(KStsServerName, TVersion(

            KStsServerMajorVersion, KStsServerMinorVersion, KStsServerBuild),

            KNumSlots, EIpcSession_Sharable);

    if (result == KErrNotFound)

        {

        result = StartServer();

        if (result == KErrNone || result == KErrAlreadyExists)

            {

            result = CreateSession(KStsServerName, TVersion(

                    KStsServerMajorVersion, KStsServerMinorVersion,

                    KStsServerBuild), KNumSlots);

            }

        }

    if (result == KErrNone)

        {

        result = ShareAuto();

        if (result != KErrNone)

            {

            Close();

            }

        }

    return result;

    }

void RStsSession::Close()

    {

    RSessionBase::Close();

    }

TInt RStsSession::SendPlayTone(CSystemToneService::TToneType aToneType,

        unsigned int& aPlayToneContext)

    {

    TPckg<unsigned int> playToneContextPckg(aPlayToneContext);

    return SendReceive(StsMsg_PlayTone, TIpcArgs((TInt) aToneType,

            &playToneContextPckg));

    }

TInt RStsSession::SendStopTone(unsigned int aPlayToneContext)

    {

    return SendReceive(StsMsg_StopTone, TIpcArgs(aPlayToneContext));

    }