Disk ARchive 2.4.2
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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 // $Id: zapette.hpp,v 1.25 2011/04/17 13:12:30 edrusb Rel $ 00022 // 00023 /*********************************************************************/ 00024 // 00025 00035 00036 #ifndef ZAPETTE_HPP 00037 #define ZAPETTE_HPP 00038 00039 #include "../my_config.h" 00040 #include "infinint.hpp" 00041 #include "generic_file.hpp" 00042 #include "integers.hpp" 00043 00044 namespace libdar 00045 { 00046 00047 00050 00052 00057 class zapette : public generic_file, public contextual, protected mem_ui 00058 { 00059 public: 00060 00062 00066 zapette(user_interaction & dialog, generic_file *input, generic_file *output); 00067 ~zapette(); 00068 00069 // inherited methods from generic_file 00070 bool skip(const infinint &pos); 00071 bool skip_to_eof() { if(is_terminated()) throw SRC_BUG; position = file_size; return true; }; 00072 bool skip_relative(S_I x); 00073 infinint get_position() { if(is_terminated()) throw SRC_BUG; return position; }; 00074 00075 // overwritten inherited methods from contextual 00076 void set_info_status(const std::string & s); 00077 bool is_an_old_start_end_archive() const; 00078 const label & get_data_name() const; 00079 00080 protected: 00081 U_I inherited_read(char *a, U_I size); 00082 void inherited_write(const char *a, U_I size); 00083 void inherited_sync_write() {}; 00084 void inherited_terminate(); 00085 00086 private: 00087 generic_file *in, *out; 00088 infinint position, file_size; 00089 char serial_counter; 00090 00092 00108 00109 void make_transfert(U_16 size, const infinint &offset, char *data, const std::string & info, S_I & lu, infinint & arg) const; 00110 }; 00111 00113 00117 class slave_zapette 00118 { 00119 public: 00120 00122 00126 slave_zapette(generic_file *input, generic_file *output, generic_file *data); 00127 ~slave_zapette(); 00128 00129 00131 00134 void action(); 00135 00136 private: 00137 generic_file *in; //< where to read orders from 00138 generic_file *out; //< where to send requested info or data to 00139 generic_file *src; //< where to read data from 00140 contextual *src_ctxt; //< same as src but seen as contextual 00141 }; 00142 00144 00145 } // end of namespace 00146 00147 #endif