Method Acquire

util/system/spinlock.h:98–114

    using TSpinLockBase::TSpinLockBase;

    void Acquire() noexcept {
        intptr_t zero = 0;
        if (Val_.compare_exchange_strong(zero, 1)) {
            return;
        }

        TSpinWait sw;

        for (;;) {
            zero = 0;
            if (Val_.load(std::memory_order_acquire) == 0 &&
                Val_.compare_exchange_strong(zero, 1)) {
                break;
            }
            sw.Sleep();
        }
    }

    inline void lock() noexcept {
        Acquire();