Disk ARchive  2.4.5
 All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Defines
.pc/delete2/tronc.hpp
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 : dar.linux@free.fr
00020 /*********************************************************************/
00021 // $Id$
00022 //
00023 /*********************************************************************/
00024 
00025 #ifndef TRONC_HPP
00026 #define TRONC_HPP
00027 
00028 #pragma interface
00029 
00030 #include "generic_file.hpp"
00031 
00032 class tronc : public generic_file
00033 {
00034 public :
00035     tronc(generic_file *f, const infinint &offset, const infinint &size);
00036     tronc(generic_file *f, const infinint &offset, const infinint &size, gf_mode mode);
00037     
00038     bool skip(const infinint & pos);
00039     bool skip_to_eof();
00040     bool skip_relative(S_I x);
00041     infinint get_position() { return current; };
00042 
00043 protected :
00044     S_I inherited_read(char *a, size_t size);
00045     S_I inherited_write(char *a, size_t size);
00046 
00047 private :
00048     infinint start, sz;
00049     generic_file *ref;
00050     infinint current;
00051 };
00052 
00053 #endif
 All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Defines