Disk ARchive: compress_block_header.hpp Source File

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compress_block_header.hpp
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1/*********************************************************************/
2// dar - disk archive - a backup/restoration program
3// Copyright (C) 2002-2026 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
25
26#ifndef COMPRESS_BLOCK_HEADER_HPP
27#define COMPRESS_BLOCK_HEADER_HPP
28
29#include "../my_config.h"
30#include "infinint.hpp"
31#include "generic_file.hpp"
32
33
34namespace libdar
35{
36
39
41
42 struct compress_block_header
43 {
44 // type values
45 static constexpr const char H_DATA = 1;
46 static constexpr const char H_EOF = 2;
47
48 // fields
49
50 char type;
51 infinint size;
52
53 void dump(generic_file & f);
54
56
60 bool set_from(generic_file & f);
61 };
62
63
65
66} // end of namespace
67
68#endif
libdar::generic_file
this is the interface class from which all other data transfer classes inherit
Definition generic_file.hpp:77
libdar::infinint
the arbitrary large positive integer class
Definition real_infinint.hpp:62
generic_file.hpp
class generic_file is defined here as well as class fichier
infinint.hpp
switch module to limitint (32 ou 64 bits integers) or infinint
my_config.h
include macro defined by the configure script and some specific additional ones
libdar
libdar namespace encapsulate all libdar symbols
Definition archive.hpp:47
libdar::compress_block_header
block header structure used for storing compressed blocks
Definition compress_block_header.hpp:43
libdar::compress_block_header::size
infinint size
size of the following compressed block of data
Definition compress_block_header.hpp:51
libdar::compress_block_header::type
char type
let the possibility to extend this architecture (for now type is fixed)
Definition compress_block_header.hpp:50
libdar::compress_block_header::set_from
bool set_from(generic_file &f)
read the block header from a generic_file (an archive)