Spinlock() { lock = 1; } // Init here to workaround a bug with MSVC 2013
void acquire() {
while (lock.fetch_sub(1, std::memory_order_acquire) != 1)
- for (int cnt = 0; lock.load(std::memory_order_relaxed) <= 0; ++cnt)
- if (cnt >= 10000) std::this_thread::yield(); // Be nice to hyperthreading
+ while (lock.load(std::memory_order_relaxed) <= 0)
+ std::this_thread::yield(); // Be nice to hyperthreading
}
void release() { lock.store(1, std::memory_order_release); }
};
/// ThreadBase struct is the base of the hierarchy from where we derive all the
/// specialized thread classes.
-struct ThreadBase {
+struct ThreadBase : public std::thread {
virtual ~ThreadBase() = default;
virtual void idle_loop() = 0;
void notify_one();
void wait_for(volatile const bool& b);
- std::thread nativeThread;
Mutex mutex;
Spinlock spinlock;
ConditionVariable sleepCondition;
struct MainThread : public Thread {
virtual void idle_loop();
+ void join();
volatile bool thinking = true; // Avoid a race with start_thinking()
};
MainThread* main() { return static_cast<MainThread*>(at(0)); }
void read_uci_options();
Thread* available_slave(const SplitPoint* sp) const;
- void wait_for_think_finished();
void start_thinking(const Position&, const Search::LimitsType&, Search::StateStackPtr&);
Depth minimumSplitDepth;
- ConditionVariable sleepCondition;
TimerThread* timer;
};