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125 lines
2.8 KiB
C++
125 lines
2.8 KiB
C++
// Copyright (C) 2007-2016 CEA/DEN, EDF R&D, OPEN CASCADE
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; either
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// version 2.1 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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//
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// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
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//
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// File : SMESH_File.hxx
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// Created : Wed Mar 10 10:33:04 2010
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// Author : Edward AGAPOV (eap)
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//
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#ifndef __SMESH_File_HXX__
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#define __SMESH_File_HXX__
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#include "SMESH_Utils.hxx"
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#include <string>
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#include <vector>
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#ifdef WIN32
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#include <windows.h>
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#else
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#include <dlfcn.h>
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#endif
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/*!
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* \brief High level util for effective file reading and other file operations
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*/
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class SMESHUtils_EXPORT SMESH_File
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{
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public:
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SMESH_File(const std::string& name, bool openForReading=true);
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~SMESH_File();
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std::string getName() const { return _name; }
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const std::string& error() const { return _error; }
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void close();
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bool remove();
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long size();
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bool exists();
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bool isDirectory();
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// ------------------------
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// Access to file contents
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// ------------------------
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bool open(); // for reading
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operator const char*() const { return _pos; }
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bool operator++() { return ++_pos < _end; }
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void operator +=(int posDelta) { _pos+=posDelta; }
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bool eof() const { return _pos >= _end; }
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const char* end() const { return _end; }
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const char* getPos() const { return _pos; }
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void setPos(const char* pos);
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std::string getLine();
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void rewind();
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bool getInts(std::vector<int>& ids);
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// ------------------------
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// Writing a binary file
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// ------------------------
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bool openForWriting(); // binary writing only
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template <typename T>
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bool write( const T* values, size_t nbTValues )
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{
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return writeRaw((const void*) values, nbTValues * sizeof(T));
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}
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template <typename T>
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bool write( const T& value )
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{
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return writeRaw((const void*) & value, sizeof(T));
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}
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bool writeRaw(const void* data, size_t size);
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private:
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std::string _name; //!< file name
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long _size; //!< file size
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std::string _error;
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#ifdef WIN32
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HANDLE _file, _mapObj;
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#else
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int _file;
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#endif
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void* _map;
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const char* _pos; //!< current position
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const char* _end; //!< position after file end
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};
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#endif
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