X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fthread.h;h=dcaa5ca3c29c66f662e55cbd1c16d778eea0bd23;hp=b7d426e25e8a14b05e30ed107ad73bf5829e6403;hb=377c406c748643d1aeec6a7ce9a45b32a7416bf3;hpb=d156e7a20b4ea15c2cbb4bcfa2dca5f1e96ece3b diff --git a/src/thread.h b/src/thread.h index b7d426e2..dcaa5ca3 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; @@ -45,7 +46,7 @@ struct SplitPoint { // Const pointers to shared data MovePicker* mp; - SearchStack* ss; + Search::Stack* ss; // Shared data Lock lock; @@ -58,10 +59,10 @@ struct SplitPoint { }; -/// Thread struct is used to keep together all the thread related stuff like locks, -/// state and especially split points. We also use per-thread pawn and material hash -/// tables so that once we get a pointer to an entry its life time is unlimited and -/// we don't have to care about someone changing the entry under our feet. +/// Thread struct keeps together all the thread related stuff like locks, state +/// and especially split points. We also use per-thread pawn and material hash +/// tables so that once we get a pointer to an entry its life time is unlimited +/// and we don't have to care about someone changing the entry under our feet. struct Thread { @@ -69,6 +70,8 @@ struct Thread { 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; @@ -91,9 +94,9 @@ struct Thread { }; -/// ThreadsManager class is used to handle all the threads related stuff like init, -/// starting, parking and, the most important, launching a slave thread at a split -/// point. All the access to shared thread data is done through this class. +/// ThreadsManager class handles all the threads related stuff like init, starting, +/// parking and, the most important, launching a slave thread at a split point. +/// All the access to shared thread data is done through this class. class ThreadsManager { /* As long as the single ThreadsManager object is defined as a global we don't @@ -112,17 +115,25 @@ public: void set_size(int cnt); void read_uci_options(); bool available_slave_exists(int master) const; + bool split_point_finished(SplitPoint* sp) const; + void set_timer(int msec); + void wait_for_stop_or_ponderhit(); + void start_thinking(const Position& pos, const Search::LimitsType& limits, + const std::vector& searchMoves, bool asyncMode); template - Value split(Position& pos, SearchStack* ss, Value alpha, Value beta, Value bestValue, + Value split(Position& pos, Search::Stack* 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 + 1]; // Last one is used as a timer Lock threadsLock; Depth minimumSplitDepth; int maxThreadsPerSplitPoint; int activeThreads; bool useSleepingThreads; + WaitCondition sleepCond; }; extern ThreadsManager Threads;