X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fthread.h;h=0469dc1d70fa180cfe17ca6a38e1c7a733b1ba28;hp=ea645b4547fd878742135fdbaa4f7fd79647c14a;hb=04372316b3739e4e99ab1bcfd6923fef9de3110f;hpb=0da7295795448fc826cb5b2613ac64a6e0c4adcd diff --git a/src/thread.h b/src/thread.h index ea645b45..0469dc1d 100644 --- a/src/thread.h +++ b/src/thread.h @@ -32,6 +32,7 @@ #include "pawns.h" #include "position.h" #include "search.h" +#include "thread_win32.h" struct Thread; @@ -44,15 +45,11 @@ const size_t MAX_SLAVES_PER_SPLITPOINT = 4; class Spinlock { - std::atomic_int lock; + Mutex m; // WARNING: Diasabled spinlocks to test on fishtest public: - Spinlock() { lock = 1; } // Init here to workaround a bug with MSVC 2013 - void acquire() { - while (lock.fetch_sub(1, std::memory_order_acquire) != 1) - while (lock.load(std::memory_order_relaxed) <= 0) {} - } - void release() { lock.store(1, std::memory_order_release); } + void acquire() { m.lock(); } + void release() { m.unlock(); } }; @@ -98,8 +95,8 @@ struct ThreadBase { void wait_for(volatile const bool& b); std::thread nativeThread; - std::mutex mutex; - std::condition_variable sleepCondition; + Mutex mutex; + ConditionVariable sleepCondition; volatile bool exit = false; }; @@ -114,7 +111,7 @@ struct Thread : public ThreadBase { Thread(); virtual void idle_loop(); bool cutoff_occurred() const; - bool available_to(const Thread* master) const; + bool can_join(const SplitPoint* sp) const; void split(Position& pos, Search::Stack* ss, Value alpha, Value beta, Value* bestValue, Move* bestMove, Depth depth, int moveCount, MovePicker* movePicker, int nodeType, bool cutNode); @@ -161,13 +158,13 @@ struct ThreadPool : public std::vector { MainThread* main() { return static_cast(at(0)); } void read_uci_options(); - Thread* available_slave(const Thread* master) const; + Thread* available_slave(const SplitPoint* sp) const; void wait_for_think_finished(); void start_thinking(const Position&, const Search::LimitsType&, Search::StateStackPtr&); Depth minimumSplitDepth; Spinlock spinlock; - std::condition_variable sleepCondition; + ConditionVariable sleepCondition; TimerThread* timer; };