#ifndef SEARCH_H_INCLUDED
#define SEARCH_H_INCLUDED
-#include <memory> // For std::auto_ptr
+#include <atomic>
+#include <memory> // For std::unique_ptr
#include <stack>
#include <vector>
#include "position.h"
#include "types.h"
-struct SplitPoint;
-
namespace Search {
/// Stack struct keeps track of the information we need to remember from nodes
/// its own array of Stack objects, indexed by the current ply.
struct Stack {
- SplitPoint* splitPoint;
Move* pv;
int ply;
Move currentMove;
Depth reduction;
Value staticEval;
bool skipEarlyPruning;
+ int moveCount;
};
/// RootMove struct is used for moves at the root of the tree. For each root move
struct LimitsType {
LimitsType() { // Init explicitly due to broken value-initialization of non POD in MSVC
- nodes = time[WHITE] = time[BLACK] = inc[WHITE] = inc[BLACK] = movestogo =
+ nodes = time[WHITE] = time[BLACK] = inc[WHITE] = inc[BLACK] = npmsec = movestogo =
depth = movetime = mate = infinite = ponder = 0;
}
}
std::vector<Move> searchmoves;
- int time[COLOR_NB], inc[COLOR_NB], movestogo, depth, movetime, mate, infinite, ponder;
+ int time[COLOR_NB], inc[COLOR_NB], npmsec, movestogo, depth, movetime, mate, infinite, ponder;
int64_t nodes;
+ TimePoint startTime;
};
-/// The SignalsType struct stores volatile flags updated during the search
+/// 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 {
- bool stop, stopOnPonderhit, firstRootMove, failedLowAtRoot;
+ std::atomic_bool stop, stopOnPonderhit, firstRootMove, failedLowAtRoot;
};
typedef std::unique_ptr<std::stack<StateInfo>> StateStackPtr;
-extern volatile SignalsType Signals;
+extern SignalsType Signals;
extern LimitsType Limits;
-extern RootMoveVector RootMoves;
-extern Position RootPos;
-extern Time::point SearchTime;
extern StateStackPtr SetupStates;
void init();
-void think();
-template<bool Root> uint64_t perft(Position& pos, Depth depth);
+void clear();
+template<bool Root = true> uint64_t perft(Position& pos, Depth depth);
} // namespace Search