-/// Spinlock class wraps low level atomic operations to provide a spin lock
-
-class Spinlock {
-
- std::atomic_int lock;
-
-public:
- Spinlock() { lock = 1; } // Init here to workaround a bug with MSVC 2013
- void acquire() {
- while (lock.fetch_sub(1, std::memory_order_acquire) != 1)
- while (lock.load(std::memory_order_relaxed) <= 0) {}
- }
- void release() { lock.store(1, std::memory_order_release); }
-};
-
-