src/thread.h

   1 /*
   2   Glaurung, a UCI chess playing engine.
   3   Copyright (C) 2004-2008 Tord Romstad
   4
   5   Glaurung is free software: you can redistribute it and/or modify
   6   it under the terms of the GNU General Public License as published by
   7   the Free Software Foundation, either version 3 of the License, or
   8   (at your option) any later version.
   9
  10   Glaurung is distributed in the hope that it will be useful,
  11   but WITHOUT ANY WARRANTY; without even the implied warranty of
  12   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13   GNU General Public License for more details.
  14
  15   You should have received a copy of the GNU General Public License
  16   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17 */
  18
  19
  20 #if !defined(THREAD_H_INCLUDED)
  21 #define THREAD_H_INCLUDED
  22
  23
  24 ////
  25 //// Includes
  26 ////
  27
  28 #include "lock.h"
  29 #include "movepick.h"
  30 #include "position.h"
  31 #include "search.h"
  32
  33
  34 ////
  35 //// Constants and variables
  36 ////
  37
  38 const int THREAD_MAX = 8;
  39
  40
  41 ////
  42 //// Types
  43 ////
  44
  45 struct SplitPoint {
  46   SplitPoint *parent;
  47   Position pos;
  48   SearchStack sstack[THREAD_MAX][PLY_MAX];
  49   SearchStack *parentSstack;
  50   int ply;
  51   Depth depth;
  52   volatile Value alpha, beta, bestValue;
  53   bool pvNode;
  54   Bitboard dcCandidates;
  55   int master, slaves[THREAD_MAX];
  56   Lock lock;
  57   MovePicker *mp;
  58   volatile int moves;
  59   volatile int cpus;
  60   bool finished;
  61 };
  62
  63
  64 struct Thread {
  65   SplitPoint *splitPoint;
  66   int activeSplitPoints;
  67   uint64_t nodes;
  68   bool failHighPly1;
  69   volatile bool stop;
  70   volatile bool running;
  71   volatile bool idle;
  72   volatile bool workIsWaiting;
  73   volatile bool printCurrentLine;
  74   unsigned char pad[64];
  75 };
  76
  77
  78 #endif // !defined(THREAD_H_INCLUDED)