hti/HtiServicePlugins/HtiIpProxyServicePlugin/IPProxyEngine/Src/CSocketReader.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 02 Feb 2010 01:57:15 +0200
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child 4 73ff0d268e1d
permissions -rw-r--r--
Revision: 201003 Kit: 201005
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/*
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* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:  Socket reader
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*
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*/
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// INCLUDE FILES
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#include "CSocketReader.h"
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#include "MSocketReaderObserver.h"
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#include <badesca.h>
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#define DEBUG_FILENAME "IPProxyEngine.log"
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#include "DebugPrint.h"
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// ============================ MEMBER FUNCTIONS ===============================
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// -----------------------------------------------------------------------------
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// CSocketReader::CSocketReader
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// -----------------------------------------------------------------------------
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//
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CSocketReader::CSocketReader( RSocket& aSocket,
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        TInt aUDPRemotePort /*= -1*/ ) :
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    CActive( EPriorityStandard ),
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    iSocket( aSocket ),
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    iUDPRemotePort( aUDPRemotePort )
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    {
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    }
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// -----------------------------------------------------------------------------
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// CSocketReader::ConstructL
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// -----------------------------------------------------------------------------
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//
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void CSocketReader::ConstructL()
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    {
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    CActiveScheduler::Add( this );
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    IssueRead();
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    }
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// -----------------------------------------------------------------------------
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// CSocketReader::NewL
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// -----------------------------------------------------------------------------
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//
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CSocketReader* CSocketReader::NewL( RSocket& aSocket,
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        TInt aUDPRemotePort /*= -1*/ )
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    {
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    CSocketReader* self = CSocketReader::NewLC( aSocket, aUDPRemotePort );
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    CleanupStack::Pop();
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    return self;
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    }
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// -----------------------------------------------------------------------------
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// CSocketReader::NewLC
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// -----------------------------------------------------------------------------
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//
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CSocketReader* CSocketReader::NewLC( RSocket& aSocket,
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        TInt aUDPRemotePort /*= -1*/ )
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    {
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    CSocketReader* self = new( ELeave ) CSocketReader( aSocket, aUDPRemotePort );
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    CleanupStack::PushL( self );
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    self->ConstructL();
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    return self;
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    }
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// Destructor
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CSocketReader::~CSocketReader()
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    {
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    Cancel();
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    }
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// -----------------------------------------------------------------------------
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// CSocketReader::SetObserver
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// -----------------------------------------------------------------------------
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//
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void CSocketReader::SetObserver( MSocketReaderObserver* aObserver )
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    {
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    iObserver = aObserver;
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    }
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// -----------------------------------------------------------------------------
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// CSocketReader::IssueRead
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// -----------------------------------------------------------------------------
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//
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void CSocketReader::IssueRead()
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    {
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    DEBUG_PRINT( DEBUG_STRING(
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        "CSocketReader::IssueRead +" ) );
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    __ASSERT_ALWAYS( !IsActive() || iStatus != KRequestPending,
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        User::Panic( _L ( "s-reader" ), 1 ) );
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    TProtocolDesc desc;
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    TInt err = iSocket.Info( desc );
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    DEBUG_PRINT( DEBUG_STRING(
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        "CSocketReader::IssueRead, err = %d" ), err );
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    DEBUG_PRINT( DEBUG_STRING(
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        "desc.iProtocol = %d, iUDPRemotePort=%d" ), desc.iProtocol, iUDPRemotePort );
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    if ( desc.iProtocol == KProtocolInetUdp && iUDPRemotePort > -1 )
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        {
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        // UDP
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        DEBUG_PRINT( DEBUG_STRING(
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            "CSocketReader::IssueRead(), UDP, local port=%d" ), iUDPRemotePort );
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        iSocket.RecvFrom( iReadBuffer, iUDPRemoteAddr, 0, iStatus );
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        }
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    else
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        {
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        // TCP
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        DEBUG_PRINT( DEBUG_STRING(
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            "CSocketReader::IssueRead(), TCP, local port=%d" ), iSocket.LocalPort() );
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        iSocket.RecvOneOrMore( iReadBuffer, 0, iStatus, iReceivedDataLength );
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        }
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    SetActive();
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    DEBUG_PRINT( DEBUG_STRING(
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        "CSocketReader::IssueRead() -" ) );
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    }
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// -----------------------------------------------------------------------------
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// CSocketReader::Start
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// -----------------------------------------------------------------------------
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//
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void CSocketReader::Start()
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    {
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    DEBUG_PRINT( DEBUG_STRING(
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        "CSocketReader::Start" ) );
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    if ( !IsActive() )
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        {
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        IssueRead();
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        }
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    }
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// -----------------------------------------------------------------------------
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// CSocketReader::RunL
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// -----------------------------------------------------------------------------
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//
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void CSocketReader::RunL()
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    {
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    TInt status = iStatus.Int();
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    if ( status == KErrNone )
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        {
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        iObserver->DataReceivedL( iReadBuffer );
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        iReadBuffer.SetLength( 0 );
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        IssueRead();
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        }
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    else
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        {
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        iObserver->ReaderErrorL( status );
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        }
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    }
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// -----------------------------------------------------------------------------
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// CSocketReader::DoCancel
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// -----------------------------------------------------------------------------
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//
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void CSocketReader::DoCancel()
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    {
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    iSocket.CancelRead();
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    }
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// -----------------------------------------------------------------------------
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// CSocketReader::RunError
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// -----------------------------------------------------------------------------
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//
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TInt CSocketReader::RunError( TInt aError )
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    {
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    iObserver->ObserverLeaved( aError );
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    iReadBuffer.SetLength( 0 );
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    IssueRead();
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    return KErrNone;
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    }
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   187