Introduce bestMove to store PV move

[stockfish] / src / search.h

diff --git a/src/search.h b/src/search.h
index 0323d47e3127b45edd42935041a9cced3e5a1fe8..a3bef714e090cb7970cdc88766006b8f8f2b7c69 100644 (file)
--- a/src/search.h
+++ b/src/search.h
@@ -1,7 +1,7 @@
 /*
   Stockfish, a UCI chess playing engine derived from Glaurung 2.1
   Copyright (C) 2004-2008 Tord Romstad (Glaurung author)
-  Copyright (C) 2008 Marco Costalba
+  Copyright (C) 2008-2010 Marco Costalba, Joona Kiiski, Tord Romstad
 
   Stockfish is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -26,11 +26,7 @@
 ////
 
 #include "depth.h"
-#include "history.h"
-#include "lock.h"
-#include "movegen.h"
-#include "position.h"
-#include "tt.h"
+#include "move.h"
 #include "value.h"
 
 
@@ -51,42 +47,36 @@ const int KILLER_MAX = 2;
 /// from nodes shallower and deeper in the tree during the search.  Each
 /// search thread has its own array of SearchStack objects, indexed by the
 /// current ply.
+struct EvalInfo;
 
 struct SearchStack {
-  Move pv[PLY_MAX];
+  Move pv[PLY_MAX_PLUS_2];
   Move currentMove;
   Move mateKiller;
   Move threatMove;
+  Move excludedMove;
+  Move bestMove;
   Move killers[KILLER_MAX];
   Depth reduction;
+  Value eval;
+  bool skipNullMove;
 
-  void init(int ply);
+  void init();
   void initKillers();
 };
 
 
-////
-//// Global variables
-////
-
-extern SearchStack EmptySearchStack;
-extern TranspositionTable TT;
-extern int ActiveThreads;
-extern Lock SMPLock;
-
-// Perhaps better to make H local, and pass as parameter to MovePicker?
-extern History H;
-
-
 ////
 //// Prototypes
 ////
 
+extern void init_search();
 extern void init_threads();
-extern void stop_threads();
-extern void think(const Position &pos, bool infinite, bool ponder, int side_to_move,
+extern void exit_threads();
+extern bool think(const Position &pos, bool infinite, bool ponder, int side_to_move,
                   int time[], int increment[], int movesToGo, int maxDepth,
                   int maxNodes, int maxTime, Move searchMoves[]);
+extern int perft(Position &pos, Depth depth);
 extern int64_t nodes_searched();