Descriptor.hpp

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// DUNE DAQ modification notice:
// This file has been modified from the original ATLAS system source for the DUNE DAQ project.
// Fork baseline commit: system-00-00-20 (2020-09-25).
// Renamed since fork: yes (from system/Descriptor.h to include/okssystem/Descriptor.hpp).
 
/*
 *  Descriptor.h
 *  Test
 *
 *  Created by Matthias Wiesmann on 08.02.05.
 *  Copyright 2005 CERN. All rights reserved.
 *
 */
 
#ifndef OKSSYSTEM_DESCRIPTOR
#define OKSSYSTEM_DESCRIPTOR
 
#include <string>
#include <sys/stat.h>
#include <sys/types.h>
 
namespace OksSystem {
 
class File;

 
class Descriptor
{
 
public:
  Descriptor(const File* file, int flags, mode_t perm);
  ~Descriptor();
 
  static int flags(bool read_mode, bool write_mode);
 
  operator int() const throw();
 
  void close();              
  void close_safe() throw(); 
 
  int read(void* buffer, size_t number) const;
  int write(const void* buffer, size_t number) const;
 
  int fd() const throw(); 
 
  void closeOnExec();
 
protected:
  void open(const File* file, int flags, mode_t perm); 
 
private:
  int m_fd;
  std::string m_name; 
 
}; // Descriptor
 
} // OksSystem
 
#endif