X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fsearch.h;h=bbdbdfd950e9409483ccdbf0056162f741d7c54c;hp=73d8cdfa200cd28527f0e43aad2c868516008f81;hb=5410424e3d036b43715c7989aa99e449cdcde18e;hpb=ec6aab01366ba1d2de27084d3cc7415a31aa5a24 diff --git a/src/search.h b/src/search.h index 73d8cdfa..bbdbdfd9 100644 --- a/src/search.h +++ b/src/search.h @@ -2,7 +2,7 @@ Stockfish, a UCI chess playing engine derived from Glaurung 2.1 Copyright (C) 2004-2008 Tord Romstad (Glaurung author) Copyright (C) 2008-2015 Marco Costalba, Joona Kiiski, Tord Romstad - Copyright (C) 2015-2016 Marco Costalba, Joona Kiiski, Gary Linscott, Tord Romstad + Copyright (C) 2015-2017 Marco Costalba, Joona Kiiski, Gary Linscott, 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 @@ -21,15 +21,13 @@ #ifndef SEARCH_H_INCLUDED #define SEARCH_H_INCLUDED -#include #include #include "misc.h" -#include "position.h" +#include "movepick.h" #include "types.h" -template struct Stats; -typedef Stats CounterMoveStats; +class Position; namespace Search { @@ -39,16 +37,17 @@ namespace Search { struct Stack { Move* pv; + PieceToHistory* contHistory; int ply; Move currentMove; Move excludedMove; Move killers[2]; Value staticEval; - bool skipEarlyPruning; + int statScore; int moveCount; - CounterMoveStats* counterMoves; }; + /// RootMove struct is used for moves at the root of the tree. For each root move /// we store a score 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. @@ -56,28 +55,30 @@ struct Stack { struct RootMove { explicit RootMove(Move m) : pv(1, m) {} - - bool operator<(const RootMove& m) const { return m.score < score; } // Descending sort - bool operator==(const Move& m) const { return pv[0] == m; } - void insert_pv_in_tt(Position& pos); bool extract_ponder_from_tt(Position& pos); + bool operator==(const Move& m) const { return pv[0] == m; } + bool operator<(const RootMove& m) const { // Sort in descending order + return m.score != score ? m.score < score + : m.previousScore < previousScore; + } Value score = -VALUE_INFINITE; Value previousScore = -VALUE_INFINITE; + int selDepth = 0; std::vector pv; }; typedef std::vector RootMoves; + /// LimitsType struct stores information sent by GUI about available time to -/// search the current move, maximum depth/time, if we are in analysis mode or -/// if we have to ponder while it's our opponent's turn to move. +/// search the current move, maximum depth/time, or if we are in analysis mode. struct LimitsType { LimitsType() { // Init explicitly due to broken value-initialization of non POD in MSVC nodes = time[WHITE] = time[BLACK] = inc[WHITE] = inc[BLACK] = - npmsec = movestogo = depth = movetime = mate = infinite = ponder = 0; + npmsec = movestogo = depth = movetime = mate = infinite = 0; } bool use_time_management() const { @@ -85,19 +86,11 @@ struct LimitsType { } std::vector searchmoves; - int time[COLOR_NB], inc[COLOR_NB], npmsec, movestogo, depth, movetime, mate, infinite, ponder; + int time[COLOR_NB], inc[COLOR_NB], npmsec, movestogo, depth, movetime, mate, infinite; int64_t nodes; TimePoint startTime; }; -/// The SignalsType struct stores atomic flags updated during the search -/// typically in an async fashion e.g. to stop the search by the GUI. - -struct SignalsType { - std::atomic_bool stop, stopOnPonderhit; -}; - -extern SignalsType Signals; extern LimitsType Limits; void init();