thread_tracker.hpp

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#ifndef NEFORCE_CORE_ASYNC_THREAD_TRACKER_HPP__
#define NEFORCE_CORE_ASYNC_THREAD_TRACKER_HPP__

 
#include "NeForce/core/async/atomic.hpp"
NEFORCE_BEGIN_NAMESPACE__



class thread_tracker {
private:
    static atomic<int> count_; 
 
    friend class thread;
 
    static NEFORCE_ALWAYS_INLINE void on_thread_create() noexcept { ++count_; }
 
    static NEFORCE_ALWAYS_INLINE void on_thread_destroy() noexcept { --count_; }
 
    thread_tracker() {
        on_thread_create(); // main thread
    }
 
    ~thread_tracker() {
        on_thread_destroy(); // main thread
    }
 
public:
    static thread_tracker& instance() noexcept {
        static thread_tracker tracker;
        return tracker;
    }

    static NEFORCE_ALWAYS_INLINE bool is_single_threaded() noexcept { return instance().count_.load() == 1; }

    static NEFORCE_ALWAYS_INLINE int thread_count() noexcept { return instance().count_.load(); }
};
 

NEFORCE_ALWAYS_INLINE_INLINE bool is_single_threaded() noexcept { return thread_tracker::is_single_threaded(); }

NEFORCE_ALWAYS_INLINE_INLINE int thread_count() noexcept { return thread_tracker::thread_count(); }
 // Thread
 // AsyncComponents
 
NEFORCE_END_NAMESPACE__
#endif // NEFORCE_CORE_ASYNC_THREAD_TRACKER_HPP__