00001 // 00002 // ******************************************************************** 00003 // * License and Disclaimer * 00004 // * * 00005 // * The Geant4 software is copyright of the Copyright Holders of * 00006 // * the Geant4 Collaboration. It is provided under the terms and * 00007 // * conditions of the Geant4 Software License, included in the file * 00008 // * LICENSE and available at http://cern.ch/geant4/license . These * 00009 // * include a list of copyright holders. * 00010 // * * 00011 // * Neither the authors of this software system, nor their employing * 00012 // * institutes,nor the agencies providing financial support for this * 00013 // * work make any representation or warranty, express or implied, * 00014 // * regarding this software system or assume any liability for its * 00015 // * use. Please see the license in the file LICENSE and URL above * 00016 // * for the full disclaimer and the limitation of liability. * 00017 // * * 00018 // * This code implementation is the result of the scientific and * 00019 // * technical work of the GEANT4 collaboration. * 00020 // * By using, copying, modifying or distributing the software (or * 00021 // * any work based on the software) you agree to acknowledge its * 00022 // * use in resulting scientific publications, and indicate your * 00023 // * acceptance of all terms of the Geant4 Software license. * 00024 // ******************************************************************** 00025 // 00026 // File: G4FileUtilities.hh 00027 // 00028 // History: 00029 // 01.08.24 Youhei Morita Initial creation 00030 00031 #ifndef FILE_UTILITIES_HH 00032 #define FILE_UTILITIES_HH 1 00033 00034 #include "G4Types.hh" 00035 00036 #include <sys/types.h> 00037 #include <fcntl.h> 00038 #include <unistd.h> 00039 #include <errno.h> 00040 #include <stdlib.h> 00041 #include <string.h> 00042 #include <string> 00043 #include <iostream> 00044 00045 00046 // Class Description: 00047 // File utilities to access files with POSIX interface. 00048 00049 class G4FileUtilities 00050 { 00051 public: // With description 00052 G4FileUtilities(); 00053 // Constructor 00054 00055 ~G4FileUtilities(); 00056 // Destructor 00057 00058 public: // With description 00059 G4bool FileExists(const std::string file); 00060 // checks if the "file" exists. returns true if it does. 00061 00062 std::string StrErrNo() const { return ::strerror(errno); }; 00063 // returns the error message of the last system call as string. 00064 00065 G4int Shell(std::string str) { return ::system(str.c_str()); }; 00066 // execute the shell command. returns zero if success. 00067 00068 G4int CopyFile(const std::string srcFile, const std::string dstFile); 00069 // copies the "srcFile" to "dstFile". returns zero if success. 00070 00071 G4int DeleteFile(const std::string file, const std::string option); 00072 // deletes the "file" with the "option". returns zero if success. 00073 00074 std::string GetEnv(const std::string env) { return ::getenv(env.c_str()); }; 00075 // retuns the value of environment variable as string. 00076 00077 }; // End of class G4FileUtilities 00078 00079 #endif 00080