/*

* 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:

*

*/

// INCLUDE FILES

#include "rusbpnclient.h"

#include "cusbpnserver.h"

#include "usbpndefinitions.h"

#include "usbpntrace.h"

#ifdef OST_TRACE_COMPILER_IN_USE

#include "rusbpnclientTraces.h"

#endif

// EXTERNAL DATA STRUCTURES

// EXTERNAL FUNCTION PROTOTYPES

// CONSTANTS

// MACROS

// LOCAL CONSTANTS AND MACROS

// MODULE DATA STRUCTURES

// LOCAL FUNCTION PROTOTYPES

// FORWARD DECLARATIONS

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

// ============================ MEMBER FUNCTIONS ===============================

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

// RUsbPnClient::RUsbPnClient

// C++ default constructor can NOT contain any code, that

// might leave.

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

//

EXPORT_C RUsbPnClient::RUsbPnClient()

    :RSessionBase()

    {

    }

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

// RUsbPnClient::ConnectL

// (other items were commented in a header).

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

//

EXPORT_C void RUsbPnClient::ConnectL()

    {

    OstTrace0( TRACE_API, RUSBPNCLIENT_CONNECTL_ENTRY, "RUsbPnClient::ConnectL" );

    A_TRACE( ( _T( "RUsbPnClient::ConnectL()" ) ) );

    TInt err( KErrNone );

    // Create USB Phonet Link Server session

    err = CreateSession( KUsbPnServerName, TVersion(1,0,0));

    if ( err == KErrNotFound )

        {

        // Session not created

        // Find lock semaphore for server process creation

        TFindSemaphore lock( KUsbPnServerName );

        TFullName semaphoreName;

        err = lock.Next( semaphoreName );

        if ( err == KErrNotFound )

            {

            // Lock is not enabled

            OstTrace0( TRACE_DETAILED, RUSBPNCLIENT_CONNECTL, "RUsbPnClient::ConnectL() - semaphore not found, start server" );

            E_TRACE( ( _L( "RUsbPnClient::ConnectL() - semaphore not found, start server" ) ) );

            RSemaphore startLock;

            // Create lock

            User::LeaveIfError( startLock.CreateGlobal( KUsbPnServerName, 0, EOwnerProcess ) );

            /********************************************/

            /* Start the USB Phonet Link process process */

            TRequestStatus status;

            RProcess server;

            User::LeaveIfError( server.Create( KUsbPnServerName, TPtrC( NULL, 0),

                         EOwnerThread ) );

            server.Rendezvous( status );

            if( status != KRequestPending )

              {

              server.Kill(0);  // Abort startup

              }

            else

              {

              server.Resume();  // Logon OK -> start the server

              }

            OstTrace0( TRACE_DETAILED, RUSBPNCLIENT_CONNECTL_DUP1, "RUsbPnClient::ConnectL() - waiting server response" );

            E_TRACE( ( _T( "RUsbPnClient::ConnectL() - waiting server response" ) ) );

            User::WaitForRequest( status );  // 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

            TInt err = status.Int();

            if (err == KErrNone && (server.ExitType() == EExitPanic || server.ExitType() == EExitKill))

              {

              err = KErrServerTerminated;

              }

            server.Close();

            if( err )

                {

                OstTrace1( TRACE_DETAILED, RUSBPNCLIENT_CONNECTL_DUP2, "RUsbPnClient::ConnectL() - waiting server response status; err=%d", err );

                E_TRACE( ( _T( "RUsbPnClient::ConnectL() - waiting server response status: %d" ), err ) );

                TRACE_ASSERT_ALWAYS;

                User::LeaveIfError( err );

                }

            /* End of starting process */

            /********************************************/

            OstTrace0( TRACE_DETAILED, RUSBPNCLIENT_CONNECTL_DUP3, "RUsbPnClient::ConnectL() - server is started, signal other clients" );

            E_TRACE( ( _L( "RUsbPnClient::ConnectL() - server is started, signal other clients" ) ) );

            // Signal other clients

            startLock.Signal( KMaxTInt );

            // Close semaphore

            startLock.Close();

            }

        else

            {

            // Lock is enabled

            RSemaphore startLock;

            // Open lock semaphore

            User::LeaveIfError( startLock.Open( lock ) );

            OstTrace0( TRACE_DETAILED, RUSBPNCLIENT_CONNECTL_DUP4, "RUsbPnClient::ConnectL() - server is starting, wait for signal" );

            E_TRACE( ( _L( "RUsbPnClient::ConnectL() - server is starting, wait for signal" ) ) );

            // Wait for signal

            startLock.Wait();

            OstTrace0( TRACE_DETAILED, RUSBPNCLIENT_CONNECTL_DUP5, "RUsbPnClient::ConnectL() - signal received" );

            E_TRACE( ( _L( "RUsbPnClient::ConnectL() - signal received" ) ) );

            // Close semaphore

            startLock.Close();

            }

        // Create USB Phonet Link server session

        OstTrace0( TRACE_DETAILED, RUSBPNCLIENT_CONNECTL_DUP6, "RUsbPnClient::ConnectL() - Create session" );

        E_TRACE( ( _L( "RUsbPnClient::ConnectL() - Create session" ) ) );

        User::LeaveIfError( CreateSession( KUsbPnServerName, TVersion(1,0,0) ) );

        OstTrace0( TRACE_DETAILED, RUSBPNCLIENT_CONNECTL_DUP7, "RUsbPnClient::ConnectL() - session created" );

        E_TRACE( ( _L( "RUsbPnClient::ConnectL() - session created" ) ) );

        }

    else if ( err )

        {

        // Session not created, reason unknown

        TRACE_ASSERT_ALWAYS;

        User::Leave( err );

        }

    else

        {

        OstTrace0( TRACE_DETAILED, RUSBPNCLIENT_CONNECTL_DUP8, "RUsbPnClient::ConnectL() - session created" );

        E_TRACE( ( _T( "RUsbPnClient::ConnectL() - session created" ) ) );

        }

    OstTrace0( TRACE_API, RUSBPNCLIENT_CONNECTL_EXIT, "RUsbPnClient::ConnectL() - return void" );

    A_TRACE( ( _T( "RUsbPnClient::ConnectL() - return void" ) ) );

    }

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

// RPtp::DestroyPtpStatck()

// Destroy PTP stack

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

//

EXPORT_C void RUsbPnClient::Detach()

    {

    OstTrace0( TRACE_API, RUSBPNCLIENT_DETACH_ENTRY, "RUsbPnClient::Detach" );

    A_TRACE( ( _T( "RUsbPnClient::Disconnect()" ) ) );

    SendReceive( EPnDetach );

    // close the session

    RSessionBase::Close();

    OstTrace0( TRACE_API, RUSBPNCLIENT_DETACH_EXIT, "RUsbPnClient::Detach - return void" );

    A_TRACE( ( _T( "RUsbPnClient::Disconnect() - return void" ) ) );

    }

// ========================== OTHER EXPORTED FUNCTIONS =========================

//  End of File