X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fsearch.h;h=f93c53a50a0f4e276966b0da894d3c873574296e;hp=c7abb9dcfd97a2b5b47b87f798fc4e5718cd2bb7;hb=ed72a1e9ba37a9fa2674da8f46bb0597a1721c2d;hpb=ecc5ff6693f116f4a8ae5f5080252f29b279c0a1

diff --git a/src/search.h b/src/search.h
index c7abb9dc..f93c53a5 100644
--- a/src/search.h
+++ b/src/search.h
@@ -20,7 +20,8 @@
 #ifndef SEARCH_H_INCLUDED
 #define SEARCH_H_INCLUDED
 
-#include <memory>  // For std::auto_ptr
+#include <atomic>
+#include <memory>  // For std::unique_ptr
 #include <stack>
 #include <vector>
 
@@ -28,8 +29,6 @@
 #include "position.h"
 #include "types.h"
 
-struct SplitPoint;
-
 namespace Search {
 
 /// Stack struct keeps track of the information we need to remember from nodes
@@ -37,11 +36,9 @@ namespace Search {
 /// its own array of Stack objects, indexed by the current ply.
 
 struct Stack {
-  SplitPoint* splitPoint;
   Move* pv;
   int ply;
   Move currentMove;
-  Move ttMove;
   Move excludedMove;
   Move killers[2];
   Depth reduction;
@@ -58,7 +55,7 @@ struct RootMove {
 
   explicit RootMove(Move m) : pv(1, m) {}
 
-  bool operator<(const RootMove& m) const { return score > m.score; } // Ascending sort
+  bool operator<(const RootMove& m) const { return m.score < score; } // Descending sort
   bool operator==(const Move& m) const { return pv[0] == m; }
   void insert_pv_in_tt(Position& pos);
   bool extract_ponder_from_tt(Position& pos);
@@ -91,22 +88,22 @@ struct LimitsType {
   TimePoint startTime;
 };
 
-/// The SignalsType struct stores volatile flags updated during the search
+/// The SignalsType struct stores atomic flags updated during the search
 /// typically in an async fashion e.g. to stop the search by the GUI.
 
 struct SignalsType {
-  bool stop, stopOnPonderhit, firstRootMove, failedLowAtRoot;
+  std::atomic_bool stop, stopOnPonderhit;
 };
 
 typedef std::unique_ptr<std::stack<StateInfo>> StateStackPtr;
 
-extern volatile SignalsType Signals;
+extern SignalsType Signals;
 extern LimitsType Limits;
 extern StateStackPtr SetupStates;
 
 void init();
-void reset();
-template<bool Root> uint64_t perft(Position& pos, Depth depth);
+void clear();
+template<bool Root = true> uint64_t perft(Position& pos, Depth depth);
 
 } // namespace Search