Last round of search.cpp cleanup

[stockfish] / src / thread.h

diff --git a/src/thread.h b/src/thread.h
index 1984448511821b062fcd8b5b65680167ce87aaf3..2ac968131c0ad98fbb47db5b404562d90ad5a43e 100644 (file)
--- a/src/thread.h
+++ b/src/thread.h
@@ -1,17 +1,18 @@
 /*
-  Glaurung, a UCI chess playing engine.
-  Copyright (C) 2004-2008 Tord Romstad
+  Stockfish, a UCI chess playing engine derived from Glaurung 2.1
+  Copyright (C) 2004-2008 Tord Romstad (Glaurung author)
+  Copyright (C) 2008-2009 Marco Costalba
 
-  Glaurung is free software: you can redistribute it and/or modify
+  Stockfish is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation, either version 3 of the License, or
   (at your option) any later version.
-  
-  Glaurung is distributed in the hope that it will be useful,
+
+  Stockfish is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
-  
+
   You should have received a copy of the GNU General Public License
   along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
@@ -36,6 +37,7 @@
 ////
 
 const int THREAD_MAX = 8;
+const int ACTIVE_SPLIT_POINTS_MAX = 8;
 
 
 ////
@@ -45,13 +47,12 @@ const int THREAD_MAX = 8;
 struct SplitPoint {
   SplitPoint *parent;
   Position pos;
-  SearchStack sstack[THREAD_MAX][PLY_MAX];
+  SearchStack sstack[THREAD_MAX][PLY_MAX_PLUS_2];
   SearchStack *parentSstack;
   int ply;
   Depth depth;
-  volatile Value alpha, beta, bestValue;
+  volatile Value alpha, beta, bestValue, futilityValue;
   bool pvNode;
-  Bitboard dcCandidates;
   int master, slaves[THREAD_MAX];
   Lock lock;
   MovePicker *mp;
@@ -65,13 +66,14 @@ struct Thread {
   SplitPoint *splitPoint;
   int activeSplitPoints;
   uint64_t nodes;
+  uint64_t betaCutOffs[2];
   bool failHighPly1;
   volatile bool stop;
   volatile bool running;
   volatile bool idle;
   volatile bool workIsWaiting;
   volatile bool printCurrentLine;
-  unsigned char pad[64];
+  unsigned char pad[64]; // set some distance among local data for each thread
 };