src/time.h

   1 /* Copyright (C) 2007-2011 Vincent Ollivier
   2  *
   3  * Purple Haze is free software: you can redistribute it and/or modify
   4  * it under the terms of the GNU General Public License as published by
   5  * the Free Software Foundation, either version 3 of the License, or
   6  * (at your option) any later version.
   7  *
   8  * Purple Haze is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  11  * GNU General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License
  14  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  15  */
  16
  17 #ifndef TIME_H
  18 #define TIME_H
  19
  20 #include <stdio.h>
  21 #include <time.h>
  22
  23 class Time
  24 {
  25     private:
  26         struct Polling {
  27             unsigned int interval;
  28             unsigned int previous;
  29             Polling() : interval(50000), previous(0) {}
  30         } polling;
  31
  32         // Set the time to play the game
  33         unsigned int level_moves;
  34         unsigned int level_time; // In centi-seconds
  35
  36         // Set the time to play a move
  37         clock_t start;
  38         unsigned long long int time_per_move; // Calculated
  39         unsigned int remaining; // Given by protocols like Xboard
  40         int coef_1, coef_2;
  41
  42         bool abort_search;
  43
  44     public:
  45         Time(unsigned int moves = 40, unsigned int time = 24000) :
  46             level_moves(moves), level_time(time),
  47             time_per_move(level_time / level_moves),
  48             remaining(time_per_move),
  49             abort_search(false)
  50             {}
  51
  52         void set_polling_interval(const unsigned int nodes) {
  53             polling.interval = nodes;
  54         };
  55         void set_remaining(const unsigned int time) {
  56             remaining = time;
  57         };
  58         unsigned long long int allocated() const {
  59             return time_per_move;
  60         };
  61         unsigned long long int elapsed() const {
  62             unsigned long long int clocks = clock() - start;
  63             return 100 * clocks / CLOCKS_PER_SEC;
  64         };
  65         void start_thinking(const unsigned int ply);
  66         bool is_out_of_time() const;
  67         bool poll(const unsigned int node_count);
  68 };
  69
  70 #endif /* !TIME_H */