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/types.h>
#include <sys/stat.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