X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=src%2Fthread.h;h=aa9db2f3633f498b62eee58771fd9e43a9d0cd2a;hb=487c21b1aa64dcc09dd95b845a66f39ae3c3754e;hp=494fdb1583ec1a31ea909e1a3f56a56c5c06366e;hpb=44a7db0f9ac02d2461aff39e25f1ac9107ffbfac;p=stockfish

diff --git a/src/thread.h b/src/thread.h
index 494fdb15..aa9db2f3 100644
--- a/src/thread.h
+++ b/src/thread.h
@@ -1,8 +1,6 @@
 /*
   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) 2004-2023 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
@@ -27,13 +25,12 @@
 #include <thread>
 #include <vector>
 
-#include "material.h"
 #include "movepick.h"
-#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
@@ -42,11 +39,11 @@
 
 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);
@@ -56,21 +53,22 @@ public:
   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, multiPV;
-  int selDepth, nmp_ply, nmp_odd;
-  std::atomic<uint64_t> nodes, tbHits;
+  size_t pvIdx, pvLast;
+  std::atomic<uint64_t> nodes, tbHits, bestMoveChanges;
+  int selDepth, nmpMinPly;
+  Value bestValue, optimism[COLOR_NB];
 
   Position rootPos;
+  StateInfo rootState;
   Search::RootMoves rootMoves;
   Depth rootDepth, completedDepth;
+  Value rootDelta;
   CounterMoveHistory counterMoves;
   ButterflyHistory mainHistory;
   CapturePieceToHistory captureHistory;
-  ContinuationHistory contHistory;
+  ContinuationHistory continuationHistory[2][2];
 };
 
 
@@ -83,10 +81,13 @@ struct MainThread : public Thread {
   void search() override;
   void check_time();
 
-  bool failedLow;
-  double bestMoveChanges, previousTimeReduction;
-  Value previousScore;
+  double previousTimeReduction;
+  Value bestPreviousScore;
+  Value bestPreviousAverageScore;
+  Value iterValue[4];
   int callsCnt;
+  bool stopOnPonderhit;
+  std::atomic_bool ponder;
 };
 
 
@@ -94,25 +95,36 @@ struct MainThread : public Thread {
 /// parking and, most importantly, launching a thread. All the access to threads
 /// is done through this class.
 
-struct ThreadPool : public std::vector<Thread*> {
+struct ThreadPool {
 
   void start_thinking(Position&, StateListPtr&, const Search::LimitsType&, bool = false);
   void clear();
   void set(size_t);
 
-  MainThread* main()        const { return static_cast<MainThread*>(front()); }
+  MainThread* main()        const { return static_cast<MainThread*>(threads.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, increaseDepth;
 
-  std::atomic_bool stop, ponder, stopOnPonderhit;
+  auto cbegin() const noexcept { return threads.cbegin(); }
+  auto begin() noexcept { return threads.begin(); }
+  auto end() noexcept { return threads.end(); }
+  auto cend() const noexcept { return threads.cend(); }
+  auto size() const noexcept { return threads.size(); }
+  auto empty() const noexcept { return threads.empty(); }
 
 private:
   StateListPtr setupStates;
+  std::vector<Thread*> threads;
 
   uint64_t accumulate(std::atomic<uint64_t> Thread::* member) const {
 
     uint64_t sum = 0;
-    for (Thread* th : *this)
+    for (Thread* th : threads)
         sum += (th->*member).load(std::memory_order_relaxed);
     return sum;
   }
@@ -120,4 +132,6 @@ private:
 
 extern ThreadPool Threads;
 
+} // namespace Stockfish
+
 #endif // #ifndef THREAD_H_INCLUDED