mirror of
https://github.com/sockspls/badfish
synced 2025-04-30 08:43:09 +00:00

A pointer is enough because after a split point has been setup master and slaves thread end up calling sp_search() or sp_search_pv() and here a full copy of split point position is done again, note that even master does another copy (of itself) and this is done before any do_move() call so that master Position is never updated between split() and sp_search(). Signed-off-by: Marco Costalba <mcostalba@gmail.com>
80 lines
1.8 KiB
C
80 lines
1.8 KiB
C
/*
|
|
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;
|
|
const 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)
|