Geant4  10.02
G4FileUtilities.hh
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25 //
26 // File: G4FileUtilities.hh
27 //
28 // History:
29 // 01.08.24 Youhei Morita Initial creation
30 
31 #ifndef FILE_UTILITIES_HH
32 #define FILE_UTILITIES_HH 1
33 
34 #include "G4Types.hh"
35 
36 #include <sys/types.h>
37 #include <fcntl.h>
38 #include <unistd.h>
39 #include <errno.h>
40 #include <stdlib.h>
41 #include <string.h>
42 #include <string>
43 #include <iostream>
44 
45 
46 // Class Description:
47 // File utilities to access files with POSIX interface.
48 
50 {
51  public: // With description
53  // Constructor
54 
56  // Destructor
57 
58  public: // With description
59  G4bool FileExists(const std::string file);
60  // checks if the "file" exists. returns true if it does.
61 
62  std::string StrErrNo() const { return ::strerror(errno); };
63  // returns the error message of the last system call as string.
64 
65  G4int Shell(std::string str) { return ::system(str.c_str()); };
66  // execute the shell command. returns zero if success.
67 
68  G4int CopyFile(const std::string srcFile, const std::string dstFile);
69  // copies the "srcFile" to "dstFile". returns zero if success.
70 
71  G4int DeleteFile(const std::string file, const std::string option);
72  // deletes the "file" with the "option". returns zero if success.
73 
74  std::string GetEnv(const std::string env) { return ::getenv(env.c_str()); };
75  // retuns the value of environment variable as string.
76 
77 }; // End of class G4FileUtilities
78 
79 #endif
80 
G4int CopyFile(const std::string srcFile, const std::string dstFile)
G4int DeleteFile(const std::string file, const std::string option)
int G4int
Definition: G4Types.hh:78
G4bool FileExists(const std::string file)
bool G4bool
Definition: G4Types.hh:79
std::string GetEnv(const std::string env)
G4int Shell(std::string str)
std::string StrErrNo() const