codhandler/codeng/src/CodBuffStorage.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Mon, 18 Jan 2010 21:20:18 +0200
changeset 38 6297cdf66332
parent 0 dd21522fd290
child 68 92a765b5b3e7
permissions -rw-r--r--
Revision: 201001 Kit: 201003
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/*
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* Copyright (c) 2002-2004 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 the License "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:  Implements double buffering storage functionality for OMA downloads
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*
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*/
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#include <bldvariant.hrh>
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#include "FileExt.h"
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#include "FileSaver.h"
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#include "CodBuffStorage.h"
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#include "CodLogger.h"
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#include "HeaderField.h"
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#include <SysUtil.h>
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#include <DocumentHandler.h>
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#include <APMSTD.H>
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#include <f32file.h>
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#ifdef RD_MULTIPLE_DRIVE
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#include <driveinfo.h>
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#endif //RD_MULTIPLE_DRIVE
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// EXTERNAL DATA STRUCTURES
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//extern  ?external_data;
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// EXTERNAL FUNCTION PROTOTYPES  
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//extern ?external_function( ?arg_type,?arg_type );
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// CONSTANTS
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//const ?type ?constant_var = ?constant;
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// ---------------------------------------------------------
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// CCodBuffStorage::CCodBuffStorage
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// ---------------------------------------------------------
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//
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CCodBuffStorage::CCodBuffStorage( CFileSaver* aSaver )
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:CActive( EPriorityHigh ), 
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 iFile(&(aSaver->iFile)),
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 iDownloadedSize(aSaver->iSize), 
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 iBufferedSize(aSaver->iBufferedSize),
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 iHttpStorageBufferSize(aSaver->iBufferSize),
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 iHttpStorageLength(aSaver->iLength),
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 iProgressiveDownload(aSaver->iProgressiveDownload)
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    {
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    }
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// -----------------------------------------------------------------------------
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// CCodBuffStorage::ConstructL
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// Symbian 2nd phase constructor can leave.
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// -----------------------------------------------------------------------------
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//
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void CCodBuffStorage::ConstructL()
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    {
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    CLOG(( ECodStorage, 0, _L("-> CCodBuffStorage::ConstructL") ));
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    CActiveScheduler::Add( this );
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    }
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// -----------------------------------------------------------------------------
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// CCodBuffStorage::NewL
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// Two-phased constructor.
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// -----------------------------------------------------------------------------
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//
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CCodBuffStorage* CCodBuffStorage::NewL( CFileSaver* aHttpStorage )
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    {
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    CCodBuffStorage* self = new( ELeave ) CCodBuffStorage( aHttpStorage );
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    CleanupStack::PushL( self );
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    self->ConstructL();
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    CleanupStack::Pop();
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    return self;
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    }
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// ---------------------------------------------------------
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// CCodBuffStorage::~CCodBuffStorage
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// ---------------------------------------------------------
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//
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CCodBuffStorage::~CCodBuffStorage()
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    {
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    Cancel();
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    ResetBuffers();
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    delete iWritePtr; iWritePtr = 0;
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    }
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// ---------------------------------------------------------
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// CCodBuffStorage::RunL
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// ---------------------------------------------------------
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//
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void CCodBuffStorage::RunL()
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    {
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    CLOG(( ECodStorage, 0, _L("-> CCodBuffStorage::RunL") ));
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    // Save the error code
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    iLastWriteErrorCode = iStatus.Int();
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    if(iLastWriteErrorCode==KErrNone && iWritePtr)
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        {
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        // Update how much was written on the file
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        iDownloadedSize += iWritePtr->Length();
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        CLOG(( ECodStorage, 2, _L("(%08X) CCodBuffStorage::RunL: Async write finished, downloaded now: %d"), \
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                 this, iDownloadedSize ));
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        }
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    else
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        {
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        CLOG(( ECodStorage, 2, _L("(%08X)  CCodBuffStorage::RunL DH-iStat: %d,"), \
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               this, iStatus.Int()  ));
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        }
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    if(iWait.IsStarted())
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        {
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        CLOG(( ECodStorage, 2, _L("(%08X)  CCodBuffStorage::RunL Stopping iWait"), \
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               this ));
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        iWait.AsyncStop();
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        }
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    }
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void CCodBuffStorage::DoCancel()
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    {
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    CLOG(( ECodStorage, 2, _L("(%08X)  CCodBuffStorage::DoCancel"), \
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        this ));
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    // This is ok, CActive::Cancel always waits for the async operation to finish in this case
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    iLastWriteErrorCode = KErrCancel;
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    }
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// ---------------------------------------------------------
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// CCodBuffStorage::ResetBuffer
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// ---------------------------------------------------------
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//
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void CCodBuffStorage::ResetBuffers()
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    {
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    CLOG(( ECodStorage, 2, _L("(%08X)  CCodBuffStorage::ResetBuffers >>"), \
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        this ));
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    if(IsActive())
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        {
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        // Make sure async writes are finished
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        iWait.Start();
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        }
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    // Cleanup
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    delete iBuff1; iBuff1 = NULL;
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    delete iBuff2; iBuff2 = NULL;
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    iClientBuffer = NULL;
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    iBufferSize = 0;
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    CLOG(( ECodStorage, 2, _L("(%08X)  CCodBuffStorage::ResetBuffers <<"), \
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           this ));
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    }
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// ---------------------------------------------------------
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// CCodBuffStorage::WriteOutNextBodyDataL
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// ---------------------------------------------------------
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//
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TBool CCodBuffStorage::WriteOutNextBodyDataL( const TDesC8& aBuf )
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    {
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    TBool retVal( ETrue );
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    if( iFile )
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        {
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        if(iDownloadedSize <= 0)
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            {
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            TInt len = aBuf.Length();
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            User::LeaveIfError( iFile->Write( aBuf ) );
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            User::LeaveIfError( iFile->Flush() );
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    	    // Update how much written to file
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   		    iDownloadedSize += len;
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            }
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        else
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            {
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            DoBufferingWriteL(aBuf);    
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            }
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        }        
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    if( iHttpStorageLength != KDefaultContentLength &&
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        iBufferedSize > iHttpStorageLength )
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        // we don't know actually how many bytes will come down.
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        {
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        CLOG(( ECodStorage, 2, _L("(%08X)  CCodBuffStorage::WriteOutNextBodyDataL: Length modified"), \
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               this ));
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   205
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        iHttpStorageLength = KDefaultContentLength;
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        retVal = EFalse;
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        }
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    return retVal;
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    }
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// ---------------------------------------------------------
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// CCodBuffStorage::FlushBuffersL
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// ---------------------------------------------------------
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//
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void CCodBuffStorage::FlushBuffersL()
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    {
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    if(!iFile)
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        {
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        return;
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        }
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    CLOG(( ECodStorage, 2, _L("(%08X)  CCodBuffStorage::FlushBuffersL >>"), \
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parents:
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   225
           this ));
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parents:
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    // Make sure async writes are finished before doing anything
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parents:
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    if(IsActive())
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parents:
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        {
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        CLOG(( ECodStorage, 2, _L("(%08X)  CCodBuffStorage::FlushBuffersL  stalling >>"), \
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parents:
diff changeset
   232
                this ));
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parents:
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        iWait.Start();
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parents:
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        CLOG(( ECodStorage, 2, _L("(%08X)  CCodBuffStorage::FlushBuffersL  stalling <<"), \
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parents:
diff changeset
   236
               this ));
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parents:
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   237
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        }
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parents:
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   239
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parents:
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     if(iLastWriteErrorCode != KErrNone)
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parents:
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        {
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parents:
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        CLOG(( ECodStorage, 2, _L("(%08X)  CCodBuffStorage::FlushBuffersL: last error = %d"), \
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parents:
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   243
               this, iLastWriteErrorCode ));
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parents:
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   244
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   245
        TInt err = iLastWriteErrorCode;
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   246
        iLastWriteErrorCode = KErrNone;
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parents:
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   247
        User::Leave(err);
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parents:
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   248
        }
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parents:
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   249
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   250
    if(iClientBuffer)
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parents:
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   251
        {
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parents:
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   252
        // Flush whatever is left on the client buffer
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Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
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   253
        TInt len = iClientBuffer->Length();
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parents:
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   254
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Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
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   255
        CLOG(( ECodStorage, 2, _L("(%08X)  CCodBuffStorage::FlushBuffersL: %d bytes"), \
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   256
            this, len ));
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parents:
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   257
dd21522fd290 Revision: 200911
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parents:
diff changeset
   258
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Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
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   259
        if(len > 0)
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Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
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   260
            {
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Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
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   261
            // Write to file
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Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
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   262
            TPtr8 des(iClientBuffer->Des());
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Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
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   263
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   264
            CLOG(( ECodStorage, 2, _L("(%08X)  CCodBuffStorage::FlushBuffersL before iFile->Write(des)"),this ));
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Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   265
            User::LeaveIfError(iFile->Write(des));
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Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   266
            CLOG(( ECodStorage, 2, _L("(%08X)  CCodBuffStorage::FlushBuffersL after iFile->Write(des)"), this ));
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   267
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Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
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   268
             // Update how much was written to file
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Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   269
            iDownloadedSize += len;
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Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   270
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Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
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   271
            des.Zero();
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   272
            }
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Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
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   273
        }
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Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
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   274
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Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
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   275
    CLOG(( ECodStorage, 2, _L("(%08X)  CCodBuffStorage::FlushBuffersL  <<"), \
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Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   276
        this ));
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Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
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   277
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
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   278
   }
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Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
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   279
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Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
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// ---------------------------------------------------------
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Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
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   281
// CCodBuffStorage::DoBufferingWriteL
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Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
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   282
// ---------------------------------------------------------
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Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
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   283
//        
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Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
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   284
void CCodBuffStorage::DoBufferingWriteL(const TDesC8& aBuf)
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Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
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   285
    {
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Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
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   286
    if((iBufferSize != iHttpStorageBufferSize )|| (iClientBuffer == NULL))
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Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   287
        {
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   288
        CLOG(( ECodStorage, 2, _L("(%08X)  CCodBuffStorage::DoBufferingWriteL: Allocate %d - downloaded %d"), \
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   289
        this, iHttpStorageBufferSize, iBufferedSize ));
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   290
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   291
        
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
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   292
        // Make sure nothing is leaked
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Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   293
        delete iBuff1; iBuff1 = 0;
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   294
        delete iBuff2; iBuff2 = 0;
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   295
        iBufferSize = 0;
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   296
        
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   297
        // Allocate buffers
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Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   298
        iBuff1 = HBufC8::NewL(iHttpStorageBufferSize);
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   299
        iBuff2 = HBufC8::NewL(iHttpStorageBufferSize);
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   300
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   301
        // Mark that we now have buffers that are iBufferSize big
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Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   302
        iBufferSize = iHttpStorageBufferSize;
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Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   303
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   304
        // Set client to use buffer 1
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Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   305
        iClientBuffer = iBuff1;
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Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   306
        
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   307
        }
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   308
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   309
    // Get incoming data pointer and size
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Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   310
    const TUint8* src = aBuf.Ptr();
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Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   311
    TInt incomingBuffSize = aBuf.Length();
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Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   312
    
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   313
    // Process the data in blocks  
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Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   314
    while(incomingBuffSize)
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   315
        {
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   316
        // Get pointer to current client buffer data (at start of loop since iClientBuffer can change)
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   317
        TPtr8 buff = iClientBuffer->Des();
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   318
        TInt buffLength = buff.Length();
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   319
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   320
        // How much space in the buffer
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   321
        TInt toFillUp = iBufferSize - buffLength;
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   322
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   323
        // Check if we can just fit everything in the current buffer
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   324
        if(incomingBuffSize < toFillUp)
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   325
            {  
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   326
            // Dump data on the current client buffer since ample space exists
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   327
            buff.Append(src, incomingBuffSize);
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   328
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   329
            // Update the 'received' counter on how much we got from air
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   330
            iBufferedSize += incomingBuffSize;
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   331
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   332
            CLOG(( ECodStorage, 2, _L("(%08X)  CCodBuffStorage::DoBufferingWriteL: Copied %d, now %d / %d"), \
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   333
                   this, incomingBuffSize, buff.Length(), iBufferSize ));
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   334
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   335
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   336
            // And break out of the loop since we're finished for this round
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   337
            break;
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   338
            }
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   339
            
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   340
        // At this point we have data that either fills or overflows the buffer so append as much as fits
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   341
        buff.Append( src, toFillUp );
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   342
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   343
        // Update the 'received' counter on how much we copied
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   344
        iBufferedSize+=toFillUp;
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   345
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   346
        CLOG(( ECodStorage, 2, _L("(%08X)  CCodBuffStorage::DoBufferingWriteL: Copied %d, now %d / %d"), \
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   347
               this, toFillUp, buff.Length(), iBufferSize ));
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   348
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   349
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   350
        // Subtract how much we copied from the loop counter and advance source data pointer
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   351
        incomingBuffSize -= toFillUp;
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   352
        src+=toFillUp;
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   353
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   354
        // Now we have a full client buffer, better do something with it
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   355
    
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   356
        // Check if previous async write is still ongoing
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   357
        // Done here so if somebody switched on progressive download midway through we don't mix buffers
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   358
        if(IsActive())
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   359
            {
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   360
            CLOG(( ECodStorage, 2, _L("(%08X)  CCodBuffStorage::DoBufferingWriteL: stalling >>"), \
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   361
                   this ));
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   362
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   363
            iWait.Start();
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   364
            CLOG(( ECodStorage, 2, _L("(%08X)  CCodBuffStorage::DoBufferingWriteL: stalling <<"), \
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   365
                   this ));
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   366
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   367
             }
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   368
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   369
        // In case of async writes we have to check if there was error previously
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   370
        if(iLastWriteErrorCode != KErrNone)
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   371
            {
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   372
            // Clear the error code and leave with it
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   373
            TInt err = iLastWriteErrorCode;
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   374
            iLastWriteErrorCode = KErrNone;
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   375
            User::Leave(err);
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   376
            }
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   377
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   378
        if(iProgressiveDownload)
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   379
            {
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   380
            CLOG(( ECodStorage, 2, _L("(%08X)  CCodBuffStorage::DoBufferingWriteL: Buffer full -> Progressive download"), \
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   381
                   this ));
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   382
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   383
            TInt len = buff.Length();
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   384
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   385
            // Progressive download -> just do a synchronous write and update counter
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   386
            User::LeaveIfError(iFile->Write(buff));
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   387
            
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   388
            // Update received counter
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   389
            //iBufferedSize += toFillUp;
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   390
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   391
            // Update how much was written to file (sync write)
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   392
            iDownloadedSize += len;
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   393
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   394
            // Clear out client buffer
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   395
            buff.Zero();
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   396
            
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   397
            // Continue for next write
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   398
            continue;
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   399
            }
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   400
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   401
        // We must keep the descriptor alive until async operations have finished
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   402
        if(!iWritePtr)
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   403
            {
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   404
            iWritePtr = new (ELeave) TPtr8(iClientBuffer->Des());
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   405
            }
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   406
        else
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   407
            {
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   408
            iWritePtr->Set(iClientBuffer->Des());
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   409
            }
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   410
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   411
#ifdef _DEBUG
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   412
        // Print out file position so we can check alignments
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   413
        TInt currentPos(0);
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   414
        iFile->Seek(ESeekCurrent, currentPos);
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   415
        
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   416
        CLOG(( ECodStorage, 2, _L("(%08X)  CCodBuffStorage::DoBufferingWriteL - Start async write %d bytes, filepos=%d"), \
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   417
               this, iWritePtr->Length(), currentPos ));
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   418
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   419
#endif
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   420
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   421
        // Start the async write and set AO active
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   422
        iFile->Write( *iWritePtr, iStatus ) ;
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   423
        SetActive();
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   424
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   425
        // Swap buffer pointers (we can't use the same buffer here 
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   426
        // since it is not known when the buffer can be used again)
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   427
        if(iClientBuffer == iBuff1)
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   428
            {
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   429
            iClientBuffer = iBuff2;
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   430
            }
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   431
        else
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   432
            {
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   433
            iClientBuffer = iBuff1;
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   434
            }
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   435
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   436
        // Make sure the new client buffer is empty
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   437
        iClientBuffer->Des().Zero();
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   438
        }
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   439
    }