1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/kernelhwsrv/userlibandfileserver/fileserver/sfile/sf_decomp.cpp	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,52 @@
     1.4 +// Copyright (c) 1995-2009 Nokia Corporation and/or its subsidiary(-ies).
     1.5 +// All rights reserved.
     1.6 +// This component and the accompanying materials are made available
     1.7 +// under the terms of the License "Eclipse Public License v1.0"
     1.8 +// which accompanies this distribution, and is available
     1.9 +// at the URL "http://www.eclipse.org/legal/epl-v10.html".
    1.10 +//
    1.11 +// Initial Contributors:
    1.12 +// Nokia Corporation - initial contribution.
    1.13 +//
    1.14 +// Contributors:
    1.15 +//
    1.16 +// Description:
    1.17 +// f32\sfile\sf_decomp.cpp
    1.18 +// 
    1.19 +//
    1.20 +
    1.21 +#include "sf_deflate.h"
    1.22 +#include <f32file.h>
    1.23 +#include <e32svr.h>
    1.24 +
    1.25 + 
    1.26 +TFileInput::TFileInput(RFile& aFile)
    1.27 +	:iFile(aFile),iReadBuf(iBuf1),iPtr(iBuf1,KBufSize)
    1.28 +	{
    1.29 +	// issue first read
    1.30 +	aFile.Read(iPtr,iStat);
    1.31 +	}
    1.32 +
    1.33 +void TFileInput::Cancel()
    1.34 +	{
    1.35 +	// absorb signal if outstanding request
    1.36 +	if (iReadBuf)
    1.37 +		User::WaitForRequest(iStat);
    1.38 +	}
    1.39 +
    1.40 +void TFileInput::UnderflowL()
    1.41 +	{
    1.42 +	TUint8* b=iReadBuf;
    1.43 +	ASSERT(b!=NULL);
    1.44 +	User::WaitForRequest(iStat);
    1.45 +	iReadBuf=0;
    1.46 +	User::LeaveIfError(iStat.Int());
    1.47 +	if(iPtr.Length()==0)
    1.48 +		User::Leave(KErrCorrupt);
    1.49 +	Set(b,iPtr.Length()*8);
    1.50 +	// start reading to the next buffer
    1.51 +	b = b==iBuf1 ? iBuf2 : iBuf1;
    1.52 +	iPtr.Set(b,0,KBufSize);
    1.53 +	iFile.Read(iPtr,iStat);
    1.54 +	iReadBuf=b;
    1.55 +	}