book_keeping.h

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/*PGR-GNU*****************************************************************
 *
 * FILE: book_keeping.h
 *
 * Copyright (c) 2017 pgRouting developers
 * Mail: project@pgrouting.org
 *
 * ------
 
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 program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
 
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 
 ********************************************************************PGR-GNU*/
 
#ifndef INCLUDE_VRP_BOOK_KEEPING_H_
#define INCLUDE_VRP_BOOK_KEEPING_H_
#pragma once
 
#include <queue>
#include <vector>
#include <iostream>
#include "vrp/vehicle_pickDeliver.h"
namespace pgrouting {
namespace vrp {
 
class Swap_bk;
class Swap_info {
    friend class Swap_bk;
 
 public:
    Swap_info() = delete;
    Swap_info(const Swap_info &) = default;
    Swap_info(const Vehicle_pickDeliver &from,
            const Vehicle_pickDeliver &to,
            size_t from_o,
            size_t to_o,
            double delta);
    friend std::ostream& operator << (std::ostream& log, const Swap_info &d);
#if 0
    {
        log
            << "\n" << d.from_truck.tau() << " --> "
            << d.from_order
            << "("
            << d.from_truck.orders()[d.from_order].pickup().original_id()
            << ")"
            << "\n" << d.to_truck.tau() << " --> "
            << d.to_order
            << "("
            << d.to_truck.orders()[d.to_order].pickup().original_id()
            << ")"
            << "\n" << "delta = " << d.estimated_delta;
        return log;
    }
#endif
 
 public:
    Vehicle_pickDeliver from_truck;
    Vehicle_pickDeliver to_truck;
    size_t from_order;
    size_t to_order;
    double estimated_delta;
};
 
 
class Swap_bk {
 private:
     class Compare {
      public:
          bool operator() (const Swap_info &lhs, const Swap_info rhs) {
              return lhs.estimated_delta > rhs.estimated_delta;
          }
     };
 
 public:
     typedef std::priority_queue<
         Swap_info,
         std::vector<Swap_info>,
         Compare >  Swaps_queue;
 
 
     Swaps_queue  m_swaps;
     friend std::ostream& operator<< (std::ostream &log, const Swap_bk &data);
 
 public:
     Swap_bk() = default;
     Swap_bk(const Swap_bk &bk) = default;
     Swaps_queue& possible_swaps() {return m_swaps;}
     void push(const Swap_info& data) {m_swaps.push(data);}
     Swap_info top() {return m_swaps.top();}
     void pop() {return m_swaps.pop();}
     bool empty() {return m_swaps.empty();}
};
 
}  // namespace vrp
}  // namespace pgrouting
 
#endif  // INCLUDE_VRP_BOOK_KEEPING_H_