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Avoid using EmptySearchStack global

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This reduces contention in SMP case and also
cleanups the code a bit.

No functional change

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
This commit is contained in:
Marco Costalba
2009-06-02 09:35:49 +01:00
parent 5b1316f7bb
commit e1ed67aacb
5 changed files with 16 additions and 21 deletions
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4
src/movepick.h
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@@ -37,8 +37,6 @@
struct EvalInfo;
struct SearchStack;
extern SearchStack EmptySearchStack;
/// MovePicker is a class which is used to pick one legal move at a time from
/// the current position. It is initialized with a Position object and a few
/// moves we have reason to believe are good. The most important method is
@@ -66,7 +64,7 @@ public:
PH_STOP
};
MovePicker(const Position& p, bool pvnode, Move ttm, const SearchStack& ss, Depth d);
MovePicker(const Position& p, bool pvnode, Move ttm, Depth d, SearchStack* ss = NULL);
Move get_next_move();
Move get_next_move(Lock& lock);
int number_of_moves() const;