bin_io_handler.hh

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#ifndef BIN_IO_HANDLER_HH
#define BIN_IO_HANDLER_HH

#include <string>
#include <cstdio>

#include "decoder_base.hh"

class bin_io_handler : public decoder_base {

public:
  
  enum MODE{
    READ, 
    WRITE 
  };

  enum STATUS{
    INIT,      
    OPENED,    
    OPERATING, 
    CLOSED     
  };

  bin_io_handler(FORMAT::INPUT_FILE type=FORMAT::UNDEFINED);

  ~bin_io_handler(){};

  bool write_word(const PMT::word_t word);

  bool write_multi_word(const PMT::word_t *words, const size_t entries);

  PMT::word_t read_word();

  void set_format(FORMAT::INPUT_FILE f) {_format=f;};

  void set_mode(MODE mode)              {_mode=mode;};

  void set_filename(std::string name)   {_filename=name;};

  bool eof() const {return _eof;};

  bool open();

  bool is_open() const;

  void close();

  void reset();

  PMT::word_t read_multi_word(size_t length=0);

private:

  std::string _filename;    

  bool _eof;                  
  UShort_t _nwords_in_file;   
  UInt_t _checksum;         
  size_t   _file_suffix;      

  PMT::word_t _single_word[1];
  PMT::word_t _word;          
  PMT::word_t _nchars;        
  FORMAT::INPUT_FILE _format; 
  STATUS _status;             
  MODE   _mode;               
  FILE* _handler;             
  

  std::vector<PMT::word_t> _read_word_buffer;
  size_t _multi_word_index;
};

#endif
 // end of doxygen group 

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