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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 <ezfilebuffer.h>
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#include <ezstream.h>
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_LIT(KFileBuffer,"FileBuffer");
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void CEZFileBufferManager::ConstructL(TInt aBufferSize)
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{
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__ASSERT_ALWAYS(aBufferSize > 0, User::Panic(KFileBuffer, EBadInitialization));
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iBufferSize = aBufferSize;
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iInputBuffer = new (ELeave) TUint8[iBufferSize];
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iOutputBuffer = new (ELeave) TUint8[iBufferSize];
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iInputDescriptor.Set(iInputBuffer,0,iBufferSize);
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iOutputDescriptor.Set(iOutputBuffer,0,iBufferSize);
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}
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CEZFileBufferManager::~CEZFileBufferManager()
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{
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delete[] iInputBuffer;
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delete[] iOutputBuffer;
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}
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CEZFileBufferManager::CEZFileBufferManager(RFile &aInput, RFile &aOutput) :
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iInputFile(aInput), iOutputFile(aOutput), iInputDescriptor(NULL,0), iOutputDescriptor(NULL,0)
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{
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}
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/**
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Creates a new CEZFileBufferManager object and leave it on the CleanupStack
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@param aInput the input file
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@param aOutput the output file
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@param aBufferSize the required size of the buffers
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@return the new CEZFileBufferManager object, on the CleanupStack
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*/
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EXPORT_C CEZFileBufferManager* CEZFileBufferManager::NewLC(RFile &aInput, RFile &aOutput, TInt aBufferSize)
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{
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CEZFileBufferManager *fb = new (ELeave) CEZFileBufferManager(aInput,aOutput);
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CleanupStack::PushL(fb);
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fb->ConstructL(aBufferSize);
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return fb;
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}
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/**
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Creates a new CEZFileBufferManager object
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@param aInput the input file
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@param aOutput the output file
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@param aBufferSize the required size of the buffers
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@return the new CEZFileBufferManager object
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*/
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EXPORT_C CEZFileBufferManager* CEZFileBufferManager::NewL(RFile &aInput, RFile &aOutput, TInt aBufferSize)
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{
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CEZFileBufferManager *fb = new (ELeave) CEZFileBufferManager(aInput,aOutput);
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CleanupStack::PushL(fb);
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fb->ConstructL(aBufferSize);
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CleanupStack::Pop();
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return fb;
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}
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void CEZFileBufferManager::InitializeL(CEZZStream &aZStream)
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{
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User::LeaveIfError(iInputFile.Read(iInputDescriptor));
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aZStream.SetInput(iInputDescriptor);
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aZStream.SetOutput(iOutputDescriptor);
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}
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void CEZFileBufferManager::NeedInputL(CEZZStream &aZStream)
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{
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User::LeaveIfError(iInputFile.Read(iInputDescriptor));
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aZStream.SetInput(iInputDescriptor);
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}
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void CEZFileBufferManager::NeedOutputL(CEZZStream &aZStream)
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{
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TPtrC8 od = aZStream.OutputDescriptor();
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User::LeaveIfError(iOutputFile.Write(od));
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aZStream.SetOutput(iOutputDescriptor);
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}
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void CEZFileBufferManager::FinalizeL(CEZZStream &aZStream)
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{
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TPtrC8 od = aZStream.OutputDescriptor();
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User::LeaveIfError(iOutputFile.Write(od));
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}
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