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Disk ARchive
2.5.2
Full featured and portable backup and archiving tool
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00001 /*********************************************************************/ 00002 // dar - disk archive - a backup/restoration program 00003 // Copyright (C) 2002-2052 Denis Corbin 00004 // 00005 // This program is free software; you can redistribute it and/or 00006 // modify it under the terms of the GNU General Public License 00007 // as published by the Free Software Foundation; either version 2 00008 // of the License, or (at your option) any later version. 00009 // 00010 // This program is distributed in the hope that it will be useful, 00011 // but WITHOUT ANY WARRANTY; without even the implied warranty of 00012 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00013 // GNU General Public License for more details. 00014 // 00015 // You should have received a copy of the GNU General Public License 00016 // along with this program; if not, write to the Free Software 00017 // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 00018 // 00019 // to contact the author : http://dar.linux.free.fr/email.html 00020 /*********************************************************************/ 00021 00025 00026 00027 #ifndef SLICE_LAYOUT_HPP 00028 #define SLICE_LAYOUT_HPP 00029 00030 #include <string> 00031 #include <set> 00032 00033 #include "../my_config.h" 00034 #include "infinint.hpp" 00035 #include "generic_file.hpp" 00036 #include "on_pool.hpp" 00037 00038 namespace libdar 00039 { 00040 00041 class slice_layout : public on_pool 00042 { 00043 public: 00044 // field still exposed (slice_layout was a struct before being a class) 00045 // we keep these fields as is for now 00046 00047 infinint first_size; //< size of the first slice 00048 infinint other_size; //< maximum size of other slices 00049 infinint first_slice_header; //< size of the slice header in the first slice 00050 infinint other_slice_header; //< size of the slice header in the other slices 00051 bool older_sar_than_v8; //< true if the archive format is older than version 8 00052 00053 void read(generic_file & f); 00054 void write(generic_file & f) const; 00055 void clear(); 00056 00063 void which_slice(const infinint & offset, 00064 infinint & slice_num, 00065 infinint & slice_offset) const; 00066 00067 private: 00068 static const char OLDER_THAN_V8 = '7'; 00069 static const char V8 = '8'; 00070 }; 00071 00072 } // end of namespace 00073 00074 #endif