X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fthread.h;h=e6a4cf95744ca0260f2ae11fd7c58aa7a1dae169;hp=11c8778d8e21e4ce8a5c603fecb0e74981509a5e;hb=3aa471f2a9cb1cccd37c27906dd386b9724e32ab;hpb=2608b9249d9c25a699c8db8725e35bd4ec0b65ab diff --git a/src/thread.h b/src/thread.h index 11c8778d..e6a4cf95 100644 --- a/src/thread.h +++ b/src/thread.h @@ -21,8 +21,8 @@ #define THREAD_H_INCLUDED #include +#include -#include "lock.h" #include "material.h" #include "movepick.h" #include "pawns.h" @@ -47,7 +47,6 @@ struct SplitPoint { MovePicker* mp; SplitPoint* parent; - // Shared data Lock lock; volatile uint64_t slavesMask; @@ -65,12 +64,22 @@ struct SplitPoint { /// 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 { +class Thread { + + Thread(const Thread&); // Only declared to disable the default ones + Thread& operator=(const Thread&); // that are not suitable in this case. + + typedef void (Thread::* Fn) (); + +public: + Thread(Fn fn); + ~Thread(); void wake_up(); bool cutoff_occurred() const; bool is_available_to(int master) const; void idle_loop(SplitPoint* sp_master); + void idle_loop() { idle_loop(NULL); } // Hack to allow storing in start_fn void main_loop(); void timer_loop(); void wait_for_stop_or_ponderhit(); @@ -82,7 +91,8 @@ struct Thread { int maxPly; Lock sleepLock; WaitCondition sleepCond; - ThreadHandle handle; + NativeHandle handle; + Fn start_fn; SplitPoint* volatile curSplitPoint; volatile int splitPointsCnt; volatile bool is_searching; @@ -101,34 +111,35 @@ class ThreadsManager { static storage duration are automatically set to zero before enter main() */ public: - Thread& operator[](int threadID) { return threads[threadID]; } - void init(); - void exit(); + void init(); // No c'tor becuase Threads is static and we need stuff initialized + ~ThreadsManager(); + Thread& operator[](int id) { return *threads[id]; } bool use_sleeping_threads() const { return useSleepingThreads; } int min_split_depth() const { return minimumSplitDepth; } - int size() const { return activeThreads; } + int size() const { return (int)threads.size(); } - void set_size(int cnt); + void wake_up() const; + void sleep() const; void read_uci_options(); bool available_slave_exists(int master) const; void set_timer(int msec); - void stop_thinking(); - void start_thinking(const Position& pos, const Search::LimitsType& limits, - const std::set& = std::set(), bool async = false); + void wait_for_search_finished(); + void start_searching(const Position& pos, const Search::LimitsType& limits, + const std::set& = std::set(), bool async = false); template Value split(Position& pos, Search::Stack* ss, Value alpha, Value beta, Value bestValue, Move* bestMove, Depth depth, Move threatMove, int moveCount, MovePicker* mp, int nodeType); private: - friend struct Thread; + friend class Thread; - Thread threads[MAX_THREADS + 1]; // Last one is used as a timer + std::vector threads; + Thread* timer; Lock splitLock; WaitCondition sleepCond; Depth minimumSplitDepth; int maxThreadsPerSplitPoint; - int activeThreads; bool useSleepingThreads; };