godot-cpp/include/godot_cpp/templates/spin_lock.hpp

/**************************************************************************/
/*  spin_lock.hpp                                                         */
/**************************************************************************/
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#ifndef GODOT_SPIN_LOCK_HPP
#define GODOT_SPIN_LOCK_HPP

#include <atomic>

namespace godot {

class SpinLock {
	std::atomic_flag locked = ATOMIC_FLAG_INIT;

public:
	_ALWAYS_INLINE_ void lock() {
		while (locked.test_and_set(std::memory_order_acquire)) {
			;
		}
	}
	_ALWAYS_INLINE_ void unlock() {
		locked.clear(std::memory_order_release);
	}
};

} // namespace godot

#endif // GODOT_SPIN_LOCK_HPP