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 "data_structure_dll.h"

// forward:
class bit_vector;


class DATA_STRUCTURE_CLASS_STYLE 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 int_array &new_spans);

  int received_sequence() const;

  int missing_sequence() const;

  void make_received_list(int_array &spans, int max_spans = -1) const;

  void make_missing_list(int_array &spans, int max_spans = -1) const;

  const bit_vector &vector() const;
  bit_vector &vector();

  istring print_received_list() const;

  istring print_missing_list() const;

private:
  bit_vector *_implementation;  

  istring funky_print(const int_array &to_spew, int rec_seq) const;
};

#endif

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