X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fsearch.h;h=e2a136062c689a79695b4c725719f7c9cb562bdc;hp=c1b370d63070018c0d64feb99a6d48714945d306;hb=45b0aea875860e9f0fe2d0435ee6163906639194;hpb=8307da0de77c9c7bbf7c56a7d9c8a688ff4dfb4e

diff --git a/src/search.h b/src/search.h
index c1b370d6..e2a13606 100644
--- 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) 2008-2012 Marco Costalba, Joona Kiiski, Tord Romstad
+  Copyright (C) 2008-2013 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
@@ -17,15 +17,18 @@
   along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
-#if !defined(SEARCH_H_INCLUDED)
+#ifndef SEARCH_H_INCLUDED
 #define SEARCH_H_INCLUDED
 
 #include <cstring>
+#include <memory>
+#include <stack>
 #include <vector>
 
+#include "misc.h"
+#include "position.h"
 #include "types.h"
 
-class Position;
 struct SplitPoint;
 
 namespace Search {
@@ -35,16 +38,38 @@ namespace Search {
 /// has its own array of Stack objects, indexed by the current ply.
 
 struct Stack {
-  SplitPoint* sp;
+  SplitPoint* splitPoint;
   int ply;
   Move currentMove;
   Move excludedMove;
-  Move bestMove;
   Move killers[2];
   Depth reduction;
-  Value eval;
+  Value staticEval;
   Value evalMargin;
   int skipNullMove;
+  int futilityMoveCount;
+};
+
+
+/// RootMove struct is used for moves at the root of the tree. For each root
+/// move we store a score, a node count, and a PV (really a refutation in the
+/// case of moves which fail low). Score is normally set at -VALUE_INFINITE for
+/// all non-pv moves.
+struct RootMove {
+
+  RootMove(Move m) : score(-VALUE_INFINITE), prevScore(-VALUE_INFINITE) {
+    pv.push_back(m); pv.push_back(MOVE_NONE);
+  }
+
+  bool operator<(const RootMove& m) const { return score > m.score; } // Ascending sort
+  bool operator==(const Move& m) const { return pv[0] == m; }
+
+  void extract_pv_from_tt(Position& pos);
+  void insert_pv_in_tt(Position& pos);
+
+  Value score;
+  Value prevScore;
+  std::vector<Move> pv;
 };
 
 
@@ -54,10 +79,10 @@ struct Stack {
 
 struct LimitsType {
 
-  LimitsType() {  memset(this, 0, sizeof(LimitsType)); }
-  bool useTimeManagement() const { return !(maxTime | maxDepth | maxNodes | infinite); }
+  LimitsType() { std::memset(this, 0, sizeof(LimitsType)); }
+  bool use_time_management() const { return !(mate | movetime | depth | nodes | infinite); }
 
-  int time, increment, movesToGo, maxTime, maxDepth, maxNodes, infinite, ponder;
+  int time[COLOR_NB], inc[COLOR_NB], movestogo, depth, nodes, movetime, mate, infinite, ponder;
 };
 
 
@@ -68,15 +93,20 @@ struct SignalsType {
   bool stopOnPonderhit, firstRootMove, stop, failedLowAtRoot;
 };
 
+typedef std::auto_ptr<std::stack<StateInfo> > StateStackPtr;
+
 extern volatile SignalsType Signals;
 extern LimitsType Limits;
-extern std::vector<Move> SearchMoves;
-extern Position RootPosition;
+extern std::vector<RootMove> RootMoves;
+extern Position RootPos;
+extern Color RootColor;
+extern Time::point SearchTime;
+extern StateStackPtr SetupStates;
 
 extern void init();
-extern int64_t perft(Position& pos, Depth depth);
+extern size_t perft(Position& pos, Depth depth);
 extern void think();
 
-} // namespace
+} // namespace Search
 
-#endif // !defined(SEARCH_H_INCLUDED)
+#endif // #ifndef SEARCH_H_INCLUDED