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dc7e9f2 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 | /*
Stockfish, a UCI chess playing engine derived from Glaurung 2.1
Copyright (C) 2004-2026 The Stockfish developers (see AUTHORS file)
Stockfish 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 3 of the License, or
(at your option) any later version.
Stockfish 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, see <http://www.gnu.org/licenses/>.
*/
#ifndef TIMEMAN_H_INCLUDED
#define TIMEMAN_H_INCLUDED
#include <cstdint>
#include "misc.h"
namespace Stockfish {
class OptionsMap;
enum Color : uint8_t;
namespace Search {
struct LimitsType;
}
// The TimeManagement class computes the optimal time to think depending on
// the maximum available time, the game move number, and other parameters.
class TimeManagement {
public:
void init(Search::LimitsType& limits,
Color us,
int ply,
const OptionsMap& options,
double& originalTimeAdjust);
TimePoint optimum() const;
TimePoint maximum() const;
template<typename FUNC>
TimePoint elapsed(FUNC nodes) const {
return useNodesTime ? TimePoint(nodes()) : elapsed_time();
}
TimePoint elapsed_time() const { return now() - startTime; };
void clear();
void advance_nodes_time(std::int64_t nodes);
private:
TimePoint startTime;
TimePoint optimumTime;
TimePoint maximumTime;
std::int64_t availableNodes = -1; // When in 'nodes as time' mode
bool useNodesTime = false; // True if we are in 'nodes as time' mode
};
} // namespace Stockfish
#endif // #ifndef TIMEMAN_H_INCLUDED
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