/*

* 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 "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:  Listens TCP port

*

*/

// INCLUDE FILES

#include "Ctcpportlistener.h"

#include "MTCPPortListenerObserver.h"

#include <in_sock.h>

#define DEBUG_FILENAME "IPProxyEngine.log"

#include "DebugPrint.h"

// LOCAL CONSTANTS

const TInt KMaxConnectionsInQueue = 8;

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

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

// CTCPPortListener::CTCPPortListener

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

//

CTCPPortListener::CTCPPortListener( TInt aPort,

                                    MTCPPortListenerObserver* aObserver ) :

    CActive( EPriorityStandard ), iObserver( aObserver ), iPort( aPort )

    {

    __ASSERT_DEBUG( iObserver, User::Invariant() );

    }

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

// CTCPPortListener::ConstructL

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

//

void CTCPPortListener::ConstructL()

    {

    //Message slots needed is two per socket (read and write) + 1 for

    //synchronous requests.

    User::LeaveIfError(

        iSocketServer.Connect( 2 * KMaxConnectionsInQueue + 1 ) );

    User::LeaveIfError( iListeningSocket.Open(

        iSocketServer, KAfInet, KSockStream, KProtocolInetTcp ) );

    iAcceptedSocket = new (ELeave) RSocket;

    User::LeaveIfError( iAcceptedSocket->Open( iSocketServer ) );

    TSockAddr addr;

    addr.SetPort( iPort );

    User::LeaveIfError( iListeningSocket.Bind( addr ) );

    CActiveScheduler::Add( this );

    }

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

// CTCPPortListener::NewL

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

//

CTCPPortListener* CTCPPortListener::NewL( TInt aPort,

                                          MTCPPortListenerObserver* aObserver )

    {

    CTCPPortListener* self = CTCPPortListener::NewLC( aPort,

                                                      aObserver );

    CleanupStack::Pop();

    return self;

    }

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

// CTCPPortListener::NewLC

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

//

CTCPPortListener* CTCPPortListener::NewLC( TInt aPort,

                                           MTCPPortListenerObserver* aObserver )

    {

    CTCPPortListener* self = new( ELeave ) CTCPPortListener( aPort,

                                                             aObserver );

    CleanupStack::PushL( self );

    self->ConstructL();

    return self;

    }

// Destructor

CTCPPortListener::~CTCPPortListener()

    {

    Cancel();

    iListeningSocket.Close();

    if ( iAcceptedSocket )

        {

        iAcceptedSocket->Close();

        delete iAcceptedSocket;

        }

    iSocketServer.Close();

    }

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

// CTCPPortListener::IssueListen

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

//

void CTCPPortListener::IssueListen()

    {

    __ASSERT_DEBUG( iAcceptedSocket, User::Invariant() );

    iListeningSocket.Listen( KMaxConnectionsInQueue );

    iListeningSocket.Accept( *iAcceptedSocket, iStatus );

    SetActive();

    DEBUG_PRINT( DEBUG_STRING(

        "CTCPPortListener::IssueListen completed, port %d" ), iPort );

    }

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

// CTCPPortListener::Port

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

//

TInt CTCPPortListener::Port() const

    {

    return iPort;

    }

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

// CTCPPortListener::RunL

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

//

void CTCPPortListener::RunL()

    {

    if ( iStatus.Int() == KErrNone )

        {

        // Allocate new RSocket first

        RSocket* next = new ( ELeave ) RSocket;

        CleanupStack::PushL( next );

        User::LeaveIfError( next->Open( iSocketServer ) );

        CleanupClosePushL( *next );

        // temp will be passed to observer

        RSocket* temp = iAcceptedSocket;

        // Takes ownership of temp immediately

        iObserver->ConnectionAcceptedL( temp );

        CleanupStack::Pop();        // *next

        CleanupStack::Pop( next );

        iAcceptedSocket = next;

        iListeningSocket.Accept( *iAcceptedSocket, iStatus );

        SetActive();

        DEBUG_PRINT( DEBUG_STRING(

            "CTCPPortListener::RunL(), connection accepted, port %d" ), iPort );

        }

    }

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

// CTCPPortListener::DoCancel

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

//

void CTCPPortListener::DoCancel()

    {

    iListeningSocket.CancelAccept();

    }

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

// CTCPPortListener::RunError

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

//

TInt CTCPPortListener::RunError( TInt aError )

    {

    iObserver->ObserverLeaved( aError );

    return KErrNone;

    }

//  End of File