X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;ds=sidebyside;f=src%2Fthread.h;h=95ec1292ea0aa86c1abd93d6e3f11f7ba09e2c56;hb=6809b57cfc47321826f01253241afef8b4380612;hp=1e92b77625ac18419061353dae1df08e2dfd9acf;hpb=9a542d96981e6cb45b6b01f17258a078cf27da36;p=stockfish diff --git a/src/thread.h b/src/thread.h index 1e92b776..95ec1292 100644 --- a/src/thread.h +++ b/src/thread.h @@ -27,6 +27,7 @@ #include "movepick.h" #include "pawns.h" #include "position.h" +#include "search.h" const int MAX_THREADS = 32; const int MAX_ACTIVE_SPLIT_POINTS = 8; @@ -65,29 +66,31 @@ struct SplitPoint { struct Thread { - enum ThreadState - { - INITIALIZING, // Thread is initializing itself - SEARCHING, // Thread is performing work - AVAILABLE, // Thread is waiting for work - BOOKED, // Other thread (master) has booked us as a slave - WORKISWAITING, // Master has ordered us to start - TERMINATED // We are quitting and thread is terminated - }; - void wake_up(); bool cutoff_occurred() const; bool is_available_to(int master) const; + void idle_loop(SplitPoint* sp); + void main_loop(); + void timer_loop(); SplitPoint splitPoints[MAX_ACTIVE_SPLIT_POINTS]; MaterialInfoTable materialTable; PawnInfoTable pawnTable; + int threadID; int maxPly; Lock sleepLock; WaitCondition sleepCond; - volatile ThreadState state; SplitPoint* volatile splitPoint; volatile int activeSplitPoints; + volatile bool is_searching; + volatile bool do_sleep; + volatile bool do_terminate; + +#if defined(_MSC_VER) + HANDLE handle; +#else + pthread_t handle; +#endif }; @@ -104,27 +107,34 @@ public: Thread& operator[](int threadID) { return threads[threadID]; } void init(); void exit(); - void init_hash_tables(); + bool use_sleeping_threads() const { return useSleepingThreads; } int min_split_depth() const { return minimumSplitDepth; } int size() const { return activeThreads; } - void set_size(int cnt) { activeThreads = cnt; } + void set_size(int cnt); void read_uci_options(); bool available_slave_exists(int master) const; - void idle_loop(int threadID, SplitPoint* sp); + bool split_point_finished(SplitPoint* sp) const; + + void start_thinking(bool asyncMode = true); + void set_timer(int msec); + void wait_for_stop_or_ponderhit(); + void wait_end_of_search(); template - void split(Position& pos, SearchStack* ss, Value* alpha, const Value beta, Value* bestValue, - Depth depth, Move threatMove, int moveCount, MovePicker* mp, int nodeType); + Value split(Position& pos, SearchStack* ss, Value alpha, Value beta, Value bestValue, + Depth depth, Move threatMove, int moveCount, MovePicker* mp, int nodeType); private: - Thread threads[MAX_THREADS]; + friend struct Thread; + + Thread threads[MAX_THREADS + 2]; // Last 2 are the listener and the timer Lock threadsLock; Depth minimumSplitDepth; int maxThreadsPerSplitPoint; int activeThreads; bool useSleepingThreads; - volatile bool allThreadsShouldExit; + WaitCondition sleepCond; }; extern ThreadsManager Threads;