author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Sat, 20 Feb 2010 00:22:34 +0200 | |
branch | RCL_3 |
changeset 4 | 73ff0d268e1d |
parent 0 | a03f92240627 |
permissions | -rw-r--r-- |
0
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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: Writes to socket. |
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* |
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*/ |
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|
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|
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// INCLUDE FILES |
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#include "socketswriter.h" |
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#include "timeouttimer.h" |
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#include "BtSerialEngine.pan" |
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#include "SocketObserver.h" |
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#include "HtiBtEngineLogging.h" |
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|
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// STATIC MEMBER INITIALISATIONS |
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const TInt KTimeOut = 10 * 1000 * 1000; // 10 seconds time-out |
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|
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// ========================= MEMBER FUNCTIONS ================================== |
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|
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// ----------------------------------------------------------------------------- |
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CSocketsWriter* CSocketsWriter::NewL( MSocketObserver& aEngineNotifier, |
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RSocket& aSocket ) |
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{ |
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CSocketsWriter* self = new ( ELeave ) CSocketsWriter( 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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// ----------------------------------------------------------------------------- |
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CSocketsWriter::CSocketsWriter( MSocketObserver& aEngineNotifier, |
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RSocket& aSocket ) |
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: CActive( EPriorityStandard ), |
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iSocket( aSocket ), |
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iObserver( aEngineNotifier ) |
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{ |
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// No implementation required |
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} |
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|
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// ----------------------------------------------------------------------------- |
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void CSocketsWriter::ConstructL() |
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{ |
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CActiveScheduler::Add( this ); |
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iTimeOut = KTimeOut; |
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iTimer = CTimeOutTimer::NewL( CActive::EPriorityUserInput, *this ); |
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iWriteStatus = EIdle; |
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} |
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|
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// ----------------------------------------------------------------------------- |
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CSocketsWriter::~CSocketsWriter() |
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{ |
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CancelSending(); |
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delete iTimer; |
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} |
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|
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// ----------------------------------------------------------------------------- |
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void CSocketsWriter::DoCancel() |
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{ |
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// Cancel asychronous write request |
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iSocket.CancelWrite(); |
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iTimer->Cancel(); |
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iWriteStatus = EIdle; |
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} |
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|
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// ----------------------------------------------------------------------------- |
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void CSocketsWriter::RunL() |
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{ |
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iTimer->Cancel(); |
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|
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// Active object request complete handler |
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if ( iStatus == KErrNone ) |
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{ |
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switch ( iWriteStatus ) |
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{ |
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// Character has been written to socket |
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case ESending: |
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SendNextPacket(); |
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break; |
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default: |
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LOGFMT_E( "CSocketsWriter: Bad write status: %d", iWriteStatus ) |
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Panic( EBTSerialEngineWriteSocketBadState ); |
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break; |
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}; |
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} |
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else |
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{ |
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iWriteStatus = EIdle; |
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iWriteBuffer.Zero(); |
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iTransferBuffer.Zero(); |
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iObserver.ReportError( MSocketObserver::EGeneralWriteError, |
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iStatus.Int() ); |
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} |
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} |
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// ----------------------------------------------------------------------------- |
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void CSocketsWriter::TimerExpired() |
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{ |
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Cancel(); |
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iWriteStatus = EIdle; |
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iObserver.ReportError( MSocketObserver::ETimeOutOnWrite, |
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KErrTimedOut ); |
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} |
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// ----------------------------------------------------------------------------- |
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void CSocketsWriter::SendL(const TDesC8& aData) |
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{ |
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if ( aData.Length() > FreeSpaceInSendBuffer() ) |
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User::Leave( KErrOverflow ); |
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iTransferBuffer.Append( aData ); |
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SendNextPacket(); |
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} |
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// ----------------------------------------------------------------------------- |
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TInt CSocketsWriter::FreeSpaceInSendBuffer() |
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{ |
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return iTransferBuffer.MaxSize() - iTransferBuffer.Size(); |
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} |
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// ----------------------------------------------------------------------------- |
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TInt CSocketsWriter::SendBufferMaxSize() |
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{ |
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return iTransferBuffer.MaxLength(); |
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} |
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// ----------------------------------------------------------------------------- |
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void CSocketsWriter::SendNextPacket() |
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{ |
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if ( IsActive() ) |
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{ |
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return; // already sending |
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} |
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if ( iTransferBuffer.Length() > 0 ) |
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{ |
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// Move data from transfer buffer to actual write buffer |
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iWriteBuffer.Copy(iTransferBuffer.Left(iWriteBuffer.MaxLength())); |
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iTransferBuffer.Delete(0, iWriteBuffer.MaxLength()); |
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iSocket.Write( iWriteBuffer, iStatus ); // Initiate actual write |
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|
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iWriteStatus = ESending; |
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iTimer->After( iTimeOut ); |
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SetActive(); |
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} |
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else |
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{ |
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iWriteStatus = EIdle; |
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iObserver.AllBufferedDataSent(); |
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} |
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} |
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|
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// ----------------------------------------------------------------------------- |
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void CSocketsWriter::CancelSending() |
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{ |
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Cancel(); |
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iWriteBuffer.Zero(); |
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iTransferBuffer.Zero(); |
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} |
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// End of File |