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// Copyright (c) 1995-2009 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 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:
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// f32\sfile\sf_decomp.cpp
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//
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//
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#include "sf_deflate.h"
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#include <f32file.h>
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#include <e32svr.h>
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TFileInput::TFileInput(RFile& aFile)
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:iFile(aFile),iReadBuf(iBuf1),iPtr(iBuf1,KBufSize)
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{
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// issue first read
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aFile.Read(iPtr,iStat);
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}
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void TFileInput::Cancel()
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{
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// absorb signal if outstanding request
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if (iReadBuf)
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User::WaitForRequest(iStat);
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}
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void TFileInput::UnderflowL()
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{
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TUint8* b=iReadBuf;
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ASSERT(b!=NULL);
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User::WaitForRequest(iStat);
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iReadBuf=0;
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User::LeaveIfError(iStat.Int());
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if(iPtr.Length()==0)
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User::Leave(KErrCorrupt);
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Set(b,iPtr.Length()*8);
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// start reading to the next buffer
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b = b==iBuf1 ? iBuf2 : iBuf1;
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iPtr.Set(b,0,KBufSize);
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iFile.Read(iPtr,iStat);
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iReadBuf=b;
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}
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