X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fthread.h;h=97ed219a67f6eb93640ccc1480f6f7ca4aed9eb9;hp=54083d2e5c83af994e0c3f647dc61eacd51d44cf;hb=55758344d3ccf49353bcd8f3a06a4553ff1b753a;hpb=40548c9153ea89c0b27b198efb443c5bb9b9c490

diff --git a/src/thread.h b/src/thread.h
index 54083d2e..97ed219a 100644
--- a/src/thread.h
+++ b/src/thread.h
@@ -20,6 +20,7 @@
 #ifndef THREAD_H_INCLUDED
 #define THREAD_H_INCLUDED
 
+#include <atomic>
 #include <bitset>
 #include <condition_variable>
 #include <mutex>
@@ -31,57 +32,26 @@
 #include "pawns.h"
 #include "position.h"
 #include "search.h"
+#include "thread_win32.h"
 
 struct Thread;
 
 const size_t MAX_THREADS = 128;
-const size_t MAX_SPLITPOINTS_PER_THREAD = 8;
-const size_t MAX_SLAVES_PER_SPLITPOINT = 4;
-
-/// SplitPoint struct stores information shared by the threads searching in
-/// parallel below the same split point. It is populated at splitting time.
-
-struct SplitPoint {
-
-  // Const data after split point has been setup
-  const Position* pos;
-  Search::Stack* ss;
-  Thread* masterThread;
-  Depth depth;
-  Value beta;
-  int nodeType;
-  bool cutNode;
-
-  // Const pointers to shared data
-  MovePicker* movePicker;
-  SplitPoint* parentSplitPoint;
-
-  // Shared variable data
-  std::mutex mutex;
-  std::bitset<MAX_THREADS> slavesMask;
-  volatile bool allSlavesSearching;
-  volatile uint64_t nodes;
-  volatile Value alpha;
-  volatile Value bestValue;
-  volatile Move bestMove;
-  volatile int moveCount;
-  volatile bool cutoff;
-};
 
 
 /// ThreadBase struct is the base of the hierarchy from where we derive all the
 /// specialized thread classes.
 
-struct ThreadBase {
+struct ThreadBase : public std::thread {
 
   virtual ~ThreadBase() = default;
   virtual void idle_loop() = 0;
   void notify_one();
-  void wait_for(volatile const bool& b);
+  void wait(volatile const bool& b);
+  void wait_while(volatile const bool& b);
 
-  std::thread nativeThread;
-  std::mutex mutex;
-  std::condition_variable sleepCondition;
+  Mutex mutex;
+  ConditionVariable sleepCondition;
   volatile bool exit = false;
 };
 
@@ -95,22 +65,21 @@ struct Thread : public ThreadBase {
 
   Thread();
   virtual void idle_loop();
-  bool cutoff_occurred() const;
-  bool available_to(const Thread* master) const;
+  void search(bool isMainThread = false);
 
-  void split(Position& pos, Search::Stack* ss, Value alpha, Value beta, Value* bestValue, Move* bestMove,
-             Depth depth, int moveCount, MovePicker* movePicker, int nodeType, bool cutNode);
-
-  SplitPoint splitPoints[MAX_SPLITPOINTS_PER_THREAD];
   Pawns::Table pawnsTable;
   Material::Table materialTable;
   Endgames endgames;
-  Position* activePosition;
-  size_t idx;
+  size_t idx, PVIdx;
   int maxPly;
-  SplitPoint* volatile activeSplitPoint;
-  volatile size_t splitPointsSize;
   volatile bool searching;
+
+  Position rootPos;
+  Search::RootMoveVector rootMoves;
+  Search::Stack stack[MAX_PLY+4];
+  HistoryStats History;
+  MovesStats Countermoves;
+  Depth depth;
 };
 
 
@@ -119,6 +88,8 @@ struct Thread : public ThreadBase {
 
 struct MainThread : public Thread {
   virtual void idle_loop();
+  void join();
+  void think();
   volatile bool thinking = true; // Avoid a race with start_thinking()
 };
 
@@ -143,13 +114,8 @@ struct ThreadPool : public std::vector<Thread*> {
 
   MainThread* main() { return static_cast<MainThread*>(at(0)); }
   void read_uci_options();
-  Thread* available_slave(const Thread* master) const;
-  void wait_for_think_finished();
   void start_thinking(const Position&, const Search::LimitsType&, Search::StateStackPtr&);
-
-  Depth minimumSplitDepth;
-  std::mutex mutex;
-  std::condition_variable sleepCondition;
+  int64_t nodes_searched();
   TimerThread* timer;
 };