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thread.h
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thread.h
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/*
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
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.
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/>.
*/
#if !defined(THREAD_H_INCLUDED)
#define THREAD_H_INCLUDED
////
//// Includes
////
#include "lock.h"
#include "movepick.h"
#include "position.h"
#include "search.h"
////
//// Constants and variables
////
const int THREAD_MAX = 8;
const int ACTIVE_SPLIT_POINTS_MAX = 8;
////
//// Types
////
struct SplitPoint {
SplitPoint *parent;
Position pos;
SearchStack sstack[THREAD_MAX][PLY_MAX_PLUS_2];
SearchStack *parentSstack;
int ply;
Depth depth;
volatile Value alpha, beta, bestValue, futilityValue;
bool pvNode;
int master, slaves[THREAD_MAX];
Lock lock;
MovePicker *mp;
volatile int moves;
volatile int cpus;
bool finished;
};
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]; // set some distance among local data for each thread
};
#endif // !defined(THREAD_H_INCLUDED)