hti/HtiCommPlugins/HtiBtCommPlugin/BtEngine/src/socketsreader.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Fri, 16 Apr 2010 16:37:27 +0300
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permissions -rw-r--r--
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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:  Reads from socket.
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*
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*/
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// INCLUDE FILES
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#include "BtSerialEngine.pan"
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#include "socketsreader.h"
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#include "SocketObserver.h"
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// -----------------------------------------------------------------------------
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CSocketsReader* CSocketsReader::NewL( MSocketObserver& aEngineNotifier,
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                                      RSocket& aSocket )
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    {
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    CSocketsReader* self = new ( ELeave ) CSocketsReader( aEngineNotifier,
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                                                          aSocket );
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    CleanupStack::PushL( self );
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    self->ConstructL();
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    CleanupStack::Pop( self );
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    return self;
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    }
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// -----------------------------------------------------------------------------
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CSocketsReader::CSocketsReader( MSocketObserver& aObserver,
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                                RSocket& aSocket )
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: CActive( EPriorityStandard ),
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  iSocket( aSocket ),
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  iObserver( aObserver )
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    {
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    // No implementation required
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    }
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// -----------------------------------------------------------------------------
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void CSocketsReader::ConstructL()
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    {
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    CActiveScheduler::Add( this );
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    }
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// -----------------------------------------------------------------------------
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CSocketsReader::~CSocketsReader()
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    {
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    Cancel();
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    }
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// -----------------------------------------------------------------------------
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void CSocketsReader::DoCancel()
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    {
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    // Cancel asychronous read request
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    iSocket.CancelRead();
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    }
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// -----------------------------------------------------------------------------
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void CSocketsReader::RunL()
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    {
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    switch ( iStatus.Int() )
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        {
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        case KErrNone:
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            iObserver.NewData(iBuffer);
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//            IssueRead(); // Immediately start another read
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            break;
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        case KErrDisconnected:
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            iObserver.ReportError( MSocketObserver::EDisconnected,
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                                   iStatus.Int() );
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            break;
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        default:
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            iObserver.ReportError( MSocketObserver::EGeneralReadError,
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                                   iStatus.Int() );
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            break;
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        }
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    }
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// -----------------------------------------------------------------------------
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void CSocketsReader::IssueRead()
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    {
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    // Initiate a new read from socket into iBuffer
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    __ASSERT_ALWAYS( !IsActive(), Panic(EBTSerialEngineReadSocketBadState) );
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    iSocket.RecvOneOrMore( iBuffer, 0, iStatus, iLen );
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    SetActive();
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    }
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// -----------------------------------------------------------------------------
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void CSocketsReader::ReadAsync()
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    {
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    // Initiate a new read from socket into iBuffer
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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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// End of File