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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#ifndef INCLUDED_PACKAGE_DEFLATER_HXX
#define INCLUDED_PACKAGE_DEFLATER_HXX
#include <com/sun/star/uno/Sequence.hxx>
#include <package/packagedllapi.hxx>
#include <memory>
struct z_stream_s;
namespace ZipUtils {
class DLLPUBLIC_PACKAGE Deflater final
{
typedef struct z_stream_s z_stream;
css::uno::Sequence< sal_Int8 > sInBuffer;
bool bFinish;
bool bFinished;
sal_Int64 nOffset, nLength;
// zlib total_in / total_out may be stored in 32bit, so they can overflow in case of 4gb files
sal_uInt64 nTotalOut64, nTotalIn64; // save the overflowed value here.
std::unique_ptr<z_stream> pStream;
void init (sal_Int32 nLevel, bool bNowrap);
sal_Int32 doDeflateBytes (css::uno::Sequence < sal_Int8 > &rBuffer, sal_Int32 nNewOffset, sal_Int32 nNewLength);
public:
~Deflater();
Deflater(sal_Int32 nSetLevel, bool bNowrap);
void setInputSegment( const css::uno::Sequence< sal_Int8 >& rBuffer );
bool needsInput() const;
void finish( );
bool finished() const { return bFinished;}
sal_Int32 doDeflateSegment( css::uno::Sequence< sal_Int8 >& rBuffer, sal_Int32 nNewLength );
sal_Int64 getTotalIn() const;
sal_Int64 getTotalOut() const;
void reset( );
void end( );
};
}
#endif
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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