author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Fri, 16 Apr 2010 15:30:47 +0300 | |
changeset 12 | 88a7990e456a |
parent 0 | b16258d2340f |
permissions | -rw-r--r-- |
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// Copyright (c) 2002-2009 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: |
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// |
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#ifndef __CTESTSOCKETWRITER_H__ |
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#define __CTESTSOCKETWRITER_H__ |
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#include <e32base.h> |
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#include <moutputstreamobserver.h> |
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const TInt KDefaultBuffer = 100; |
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class MOutputStream; |
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class MTestWriterObserver; |
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/** @class CTestSocketWriter |
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The CTestSocketWriter class encapsulates the output stream of a connected |
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socket. The state machine is initially in the Idle state. When the observer |
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requests that data should be sent (using the SendData() API), the test |
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socket writer binds to the output stream. The state changes the SendData |
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state and the object self-completes. Note the descriptor buffer containing |
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the data to be sent must remain valid until the socket writer terminates. |
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When in the SendData the test socket writer does a send request. The data to |
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send is placed in the send packet and the sedn data is updated, removing the |
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data sent in the current buffer. |
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The test socket writer moves into the PendingAck state and waits for the |
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output stream to notify the it that the data has been sent. This is done via |
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the MOutputStreamObserver::SendDataCnf() API. |
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When the test socket writer is notified that the data has been sent it checks |
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to see if more data needs to be sent. If there is then the test socket writer |
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moves to the SendData state and self-completes. If there is no more data to |
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send the test socket writer moves to the Idle state. |
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The test socket writer observer can request that the output stream be closed |
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using the CloseWriter() API. The test socket writer must be in the Idle state |
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or else there will be a panic. The state changes to Closing and the test |
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socket writer self-completes. |
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In the Closing state the test socket writer requests that the output stream |
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close asynchronously. The test socket writer moves to the PendingClosed |
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state and waits to be notified that the output stream is closed. |
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Once the stream has closed, the test socket writer is notified via the |
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MOutputStreamObserver::OutputStreamCloseInd() API. The test socket writer |
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moves to the Closed state. |
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If the output stream is closed, either because the corresponding input stream |
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has been closed, the remote host has closed the socket or there has been a |
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socket error, the socket writer is notified via the |
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MOutputStreamObserver::OutputStreamCloseInd() API. |
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@componentInternal |
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*/ |
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class CTestSocketWriter : public CActive, |
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public MOutputStreamObserver |
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{ |
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public: // methods |
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static CTestSocketWriter* NewL(MTestWriterObserver& aObserver, MOutputStream& aOutputStream); |
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virtual ~CTestSocketWriter(); |
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void SendData(const TDesC8& aData); |
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void SetSecure(TBool aSecure); |
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void CloseWriter(); |
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private: // methods from MOutputStreamObserver |
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virtual void SendDataCnfL(); |
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virtual void OutputStreamCloseInd(TInt aError); |
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virtual void SecureClientCnf(); |
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virtual TBool SecureRetry(){ return EFalse;} |
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virtual void MOutputStreamObserver_Reserved(); |
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virtual void OnSendTimeOut(); |
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virtual TInt SendTimeOutVal(); |
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private: // methods from CActive |
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virtual void RunL(); |
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virtual void DoCancel(); |
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virtual TInt RunError(TInt aError); |
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private: // methods |
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CTestSocketWriter(MTestWriterObserver& aObserver, MOutputStream& aOutputStream); |
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void CompleteSelf(); |
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private: // enums |
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/** @enum TWriterState |
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The state machine for the socket writer. |
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@componentInternal |
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*/ |
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enum TWriterState |
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{ |
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/** The socket writer is in idle. |
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*/ |
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EIdle =0, |
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/** The socket writer needs to send the next data packet. |
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*/ |
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ESendData, |
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/** The socket writer is waiting for the output stream to notify it that |
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the data packet has been sent. |
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*/ |
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EPendingAck, |
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/** The socket writer observer has requested that the socket writer close |
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the output stream. |
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*/ |
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EClosing, |
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/** The socket writer is waiting for the output stream to notify it that |
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it has closed. |
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*/ |
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EPendingClosed, |
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/** The socket writer is closed - no more data can be sent. |
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*/ |
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EClosed, |
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ESecureHandshake |
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}; |
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private: // attributes |
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MTestWriterObserver& iObserver; |
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MOutputStream* iOutputStream; |
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TWriterState iState; |
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TBool iBoundToOutputStream; |
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TPtrC8 iSendData; |
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TBuf8<KDefaultBuffer> iSendBuffer; |
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TBool iSecure; |
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}; |
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#endif // __CTESTSOCKETWRITER_H__ |