/* * Copyright 2015 Google Inc. * * Use of this source code is governed by a BSD-style license that can be * found in the LICENSE file. */ #include "SkSpinlock.h" void SkSpinlock::contendedAcquire() { // To act as a mutex, we need an acquire barrier when we acquire the lock. while (fLocked.exchange(true, std::memory_order_acquire)) { /*spin*/ } }