span_manager.h

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#ifndef SPAN_MANAGER_CLASS
#define SPAN_MANAGER_CLASS
 
/*****************************************************************************\
*                                                                             *
*  Name   : span_manager                                                      *
*  Author : Chris Koeritz                                                     *
*                                                                             *
*******************************************************************************
* Copyright (c) 1990-$now By Author.  This program is free software; you can  *
* redistribute it and/or modify it under the terms of the GNU General Public  *
* License as published by the Free Software Foundation; either version 2 of   *
* the License or (at your option) any later version.  This is online at:      *
*     http://www.fsf.org/copyleft/gpl.html                                    *
* Please send any updates to: fred@gruntose.com                               *
\*****************************************************************************/
 
#include <structures/bit_vector.h>
 
namespace sockets {
 
 
class span_manager
{
public:
  span_manager(int number_of_items);
    // keeps track of "number_of_items" worth of whatever the unit is.
 
  span_manager(const span_manager &to_copy);
 
  ~span_manager();
 
  span_manager &operator =(const span_manager &to_copy);
 
  void reset(int number_of_items);
 
  bool update(const basis::int_array &new_spans);
 
  int received_sequence() const;
 
  int missing_sequence() const;
 
  void make_received_list(basis::int_array &spans, int max_spans = -1) const;
 
  void make_missing_list(basis::int_array &spans, int max_spans = -1) const;
 
  const structures::bit_vector &vector() const;
  structures::bit_vector &vector();
 
  basis::astring print_received_list() const;
 
  basis::astring print_missing_list() const;
 
private:
  structures::bit_vector *_implementation;  
 
  basis::astring funky_print(const basis::int_array &to_spew, int rec_seq) const;
};
 
} //namespace.
 
#endif