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/*
* Zlib Compressor
* (C) 2001 Peter J Jones
* 2001-2007,2014 Jack Lloyd
*
* Botan is released under the Simplified BSD License (see license.txt)
*/
#ifndef BOTAN_ZLIB_H__
#define BOTAN_ZLIB_H__
#include <botan/compression.h>
namespace Botan {
/**
* Zlib Compression
*/
class BOTAN_DLL Zlib_Compression final : public Stream_Compression
{
public:
/**
* @param level how much effort to use on compressing (0 to 9);
* higher levels are slower but tend to give better
* compression
*/
Zlib_Compression(size_t level = 6) : m_level(level) {}
std::string name() const override { return "Zlib_Compression"; }
private:
Compression_Stream* make_stream() const override;
const size_t m_level;
};
/**
* Zlib Decompression
*/
class BOTAN_DLL Zlib_Decompression final : public Stream_Decompression
{
public:
std::string name() const override { return "Zlib_Decompression"; }
private:
Compression_Stream* make_stream() const override;
};
/**
* Deflate Compression
*/
class BOTAN_DLL Deflate_Compression final : public Stream_Compression
{
public:
/**
* @param level how much effort to use on compressing (0 to 9);
* higher levels are slower but tend to give better
* compression
*/
Deflate_Compression(size_t level = 6) : m_level(level) {}
std::string name() const override { return "Deflate_Compression"; }
private:
Compression_Stream* make_stream() const override;
const size_t m_level;
};
/**
* Deflate Decompression
*/
class BOTAN_DLL Deflate_Decompression final : public Stream_Decompression
{
public:
std::string name() const override { return "Deflate_Decompression"; }
private:
Compression_Stream* make_stream() const override;
};
/**
* Gzip Compression
*/
class BOTAN_DLL Gzip_Compression final : public Stream_Compression
{
public:
/**
* @param level how much effort to use on compressing (0 to 9);
* higher levels are slower but tend to give better
* compression
*/
Gzip_Compression(size_t level = 6, byte os_code = 255) :
m_level(level), m_os_code(os_code) {}
std::string name() const override { return "Gzip_Compression"; }
private:
Compression_Stream* make_stream() const override;
const size_t m_level;
const byte m_os_code;
};
/**
* Gzip Decompression
*/
class BOTAN_DLL Gzip_Decompression final : public Stream_Decompression
{
public:
std::string name() const override { return "Gzip_Decompression"; }
private:
Compression_Stream* make_stream() const override;
};
}
#endif
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