applayerprotocols/httpservice/src/chttpcontentreader.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 02 Feb 2010 01:09:52 +0200
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// Copyright (c) 2003-2009 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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#include "chttpcontentreader.h"
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#include "mhttpdatasender.h"
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const TInt KFileReadSize = 16 * 1024;
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CHttpFileReader* CHttpFileReader::New(RFile aFile, MHttpDataSender& aReceiver)
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    {
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    CHttpFileReader* self = new CHttpFileReader(aFile, aReceiver);
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    if(self)
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        {
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        if(self->Construct() != KErrNone)
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            {
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            delete self;
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            self = NULL;
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            }
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        }
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    return self;
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    }
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TInt CHttpFileReader::Construct()
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    {   
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    iFile.Size(iTotalSize);
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    return iContentBuffer.Create(KFileReadSize);
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    }
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CHttpFileReader::CHttpFileReader(RFile aFile, MHttpDataSender& aReceiver)
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: CActive(EPriorityStandard),
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iFile(aFile),
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iDataSender(aReceiver)
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    {
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    CActiveScheduler::Add(this);
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    }
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CHttpFileReader::~CHttpFileReader()
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    {
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    Cancel();
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    iContentBuffer.Close();
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    }
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void CHttpFileReader::Read()
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    {
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    iContentBuffer.Zero();
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    iFile.Read(iContentBuffer, iStatus);
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    SetActive();
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    }
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// From CActive
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void CHttpFileReader::RunL()
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    {
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    User::LeaveIfError(iStatus.Int());
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    iReadBytes += iContentBuffer.Length();
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    iDataSender.Notify(iContentBuffer, iReadBytes == iTotalSize);
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    }
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void CHttpFileReader::DoCancel()
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    {
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    iFile.ReadCancel(iStatus);
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    }
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TInt CHttpFileReader::RunError(TInt aError)
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    {
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    iDataSender.Error(aError);
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    return KErrNone;
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    }    
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