SMESH_File.hxx

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// Copyright (C) 2007-2026  CEA, EDF, OPEN CASCADE
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
//
// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
//
 
// File      : SMESH_File.hxx
// Created   : Wed Mar 10 10:33:04 2010
// Author    : Edward AGAPOV (eap)
//
#ifndef __SMESH_File_HXX__
#define __SMESH_File_HXX__
 
#include "SMESH_Utils.hxx"
 
#include <string>
#include <vector>
 
#ifdef WIN32
#include <windows.h>
#else
#include <dlfcn.h>
#endif
 
class SMESHUtils_EXPORT SMESH_File
{
public:
 
  SMESH_File(const std::string& name, bool openForReading=true);
 
  ~SMESH_File();
 
  std::string getName() const { return _name; }
 
  const std::string& error() const { return _error; }
 
  void close();
 
  bool remove();
 
  long size();
 
  bool exists();
 
  bool isDirectory();
 
  // ------------------------
  // Access to file contents
  // ------------------------
 
  bool open(); // for reading
 
  operator const char*() const { return _pos; }
 
  bool operator++() { return ++_pos < _end; }
 
  void operator +=(int posDelta) { _pos+=posDelta; }
 
  bool eof() const { return _pos >= _end; }
 
  const char* end() const { return _end; }
 
  const char* getPos() const { return _pos; }
 
  void setPos(const char* pos);
 
  std::string getLine();
 
  void rewind();
 
  bool getInts(std::vector<int>& ids);
 
  // ------------------------
  // Writing a binary file
  // ------------------------
 
  bool openForWriting(); // binary writing only
 
  template <typename T>
    bool write( const T* values, size_t nbTValues )
  {
    return writeRaw((const void*) values, nbTValues * sizeof(T));
  }
 
  template <typename T>
    bool write( const T& value )
  {
    return writeRaw((const void*) & value, sizeof(T));
  }
 
  bool writeRaw(const void* data, size_t size);
 
private:
 
  std::string _name; 
  long        _size; 
  std::string _error;
#ifdef WIN32
  HANDLE      _file, _mapObj;
#else
  int         _file;
#endif
  void*       _map;
  const char* _pos; 
  const char* _end; 
};
 
#endif