G4FileUtilities.cc

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//
// G4FileUtilities implementation
//
// Author: Youhei Morita, 24.08.2001
// --------------------------------------------------------------------
 
#ifndef WIN32
 
#include "G4FileUtilities.hh"
 
#include <sys/types.h>
#include <fcntl.h>
#include <unistd.h>
#include <errno.h>
#include <stdlib.h>
 
// --------------------------------------------------------------------
G4FileUtilities::G4FileUtilities()
{
}
 
// --------------------------------------------------------------------
G4FileUtilities::~G4FileUtilities()
{
}
 
// --------------------------------------------------------------------
G4bool G4FileUtilities::FileExists(const G4String& file)
{
  char* c = (char*) file.c_str();
 
  G4int fd = ::open(c, O_RDONLY);
  // G4int error = errno;
  if(fd != -1)
  {
    ::close(fd);
    return true;
  }
  else
  {
    return false;
  }
}
 
// --------------------------------------------------------------------
G4String G4FileUtilities::StrErrNo() const
{
  return ::strerror(errno);
}
 
// --------------------------------------------------------------------
G4int G4FileUtilities::Shell(const G4String& str)
{
  return ::system(str.c_str());
}
 
// --------------------------------------------------------------------
G4int G4FileUtilities::CopyFile(const G4String& srcFile,
                                const G4String& dstFile)
{
  G4String cmd = "cp " + srcFile + " " + dstFile;
  return Shell(cmd);
}
 
// --------------------------------------------------------------------
G4int G4FileUtilities::DeleteFile(const G4String& file,
                                  const G4String& option)
{
  G4String cmd = "rm " + option + " " + file;
  return Shell(cmd);
}
 
// --------------------------------------------------------------------
G4String G4FileUtilities::GetEnv(const G4String& env)
{
  return ::getenv(env.c_str());
}
 
#endif