Disk ARchive 2.7.16
Full featured and portable backup and archiving tool
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compress_module.hpp
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1/*********************************************************************/
2// dar - disk archive - a backup/restoration program
3// Copyright (C) 2002-2024 Denis Corbin
4//
5// This program is free software; you can redistribute it and/or
6// modify it under the terms of the GNU General Public License
7// as published by the Free Software Foundation; either version 2
8// of the License, or (at your option) any later version.
9//
10// This program is distributed in the hope that it will be useful,
11// but WITHOUT ANY WARRANTY; without even the implied warranty of
12// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13// GNU General Public License for more details.
14//
15// You should have received a copy of the GNU General Public License
16// along with this program; if not, write to the Free Software
17// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
18//
19// to contact the author, see the AUTHOR file
20/*********************************************************************/
21
22
26
27#ifndef COMPRESS_MODULE_HPP
28#define COMPRESS_MODULE_HPP
29
30#include "../my_config.h"
31#include "integers.hpp"
32#include "compression.hpp"
33#include <memory>
34
35namespace libdar
36{
39
40
41 class compress_module
42 {
43 public:
44 compress_module() {};
45 compress_module(const compress_module & ref) = default;
46 compress_module(compress_module && ref) noexcept = default;
47 compress_module & operator = (const compress_module & ref) = default;
48 compress_module & operator = (compress_module && ref) noexcept = default;
49 virtual ~compress_module() = default;
50
52 virtual compression get_algo() const = 0;
53
55 virtual U_I get_max_compressing_size() const = 0;
56
58
61 virtual U_I get_min_size_to_compress(U_I clear_size) const = 0;
62
64
71 virtual U_I compress_data(const char *normal,
72 const U_I normal_size,
73 char *zip_buf,
74 U_I zip_buf_size) const = 0;
75
77
85 virtual U_I uncompress_data(const char *zip_buf,
86 const U_I zip_buf_size,
87 char *normal,
88 U_I normal_size) const = 0;
89
91
93 virtual std::unique_ptr<compress_module> clone() const = 0;
94
95 };
96
98
99} // end of namespace
100
101#endif
compression parameters for API
are defined here basic integer types that tend to be portable
include macro defined by the configure script and some specific additional ones
libdar namespace encapsulate all libdar symbols
Definition archive.hpp:47