/*
Stockfish, a UCI chess playing engine derived from Glaurung 2.1
- Copyright (C) 2004-2008 Tord Romstad (Glaurung author)
- Copyright (C) 2008-2015 Marco Costalba, Joona Kiiski, Tord Romstad
- Copyright (C) 2015-2018 Marco Costalba, Joona Kiiski, Gary Linscott, Tord Romstad
+ Copyright (C) 2004-2021 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
#include "pawns.h"
#include "position.h"
#include "search.h"
-#include "thread_win32.h"
+#include "thread_win32_osx.h"
+namespace Stockfish {
/// Thread class keeps together all the thread-related stuff. We use
/// per-thread pawn and material hash tables so that once we get a
class Thread {
- Mutex mutex;
- ConditionVariable cv;
+ std::mutex mutex;
+ std::condition_variable cv;
size_t idx;
bool exit = false, searching = true; // Set before starting std::thread
- std::thread stdThread;
+ NativeThread stdThread;
public:
explicit Thread(size_t);
void idle_loop();
void start_searching();
void wait_for_search_finished();
+ size_t id() const { return idx; }
Pawns::Table pawnsTable;
Material::Table materialTable;
- Endgames endgames;
- size_t PVIdx;
- int selDepth, nmp_ply, nmp_odd;
- std::atomic<uint64_t> nodes, tbHits;
+ size_t pvIdx, pvLast;
+ uint64_t ttHitAverage;
+ int selDepth, nmpMinPly;
+ Color nmpColor;
+ std::atomic<uint64_t> nodes, tbHits, bestMoveChanges;
Position rootPos;
+ StateInfo rootState;
Search::RootMoves rootMoves;
Depth rootDepth, completedDepth;
CounterMoveHistory counterMoves;
ButterflyHistory mainHistory;
+ LowPlyHistory lowPlyHistory;
CapturePieceToHistory captureHistory;
- ContinuationHistory contHistory;
+ ContinuationHistory continuationHistory[2][2];
+ Score trend;
};
void search() override;
void check_time();
- bool failedLow;
- double bestMoveChanges, previousTimeReduction;
- Value previousScore;
+ double previousTimeReduction;
+ Value bestPreviousScore;
+ Value iterValue[4];
int callsCnt;
+ bool stopOnPonderhit;
+ std::atomic_bool ponder;
};
MainThread* main() const { return static_cast<MainThread*>(front()); }
uint64_t nodes_searched() const { return accumulate(&Thread::nodes); }
uint64_t tb_hits() const { return accumulate(&Thread::tbHits); }
+ Thread* get_best_thread() const;
+ void start_searching();
+ void wait_for_search_finished() const;
- std::atomic_bool stop, ponder, stopOnPonderhit;
+ std::atomic_bool stop, increaseDepth;
private:
StateListPtr setupStates;
extern ThreadPool Threads;
+} // namespace Stockfish
+
#endif // #ifndef THREAD_H_INCLUDED