Method Push

python/include/unsupported/test/cxx11_eventcount.cpp:49–58

  ~TestQueue() { VERIFY_IS_EQUAL(val_.load(), 0); }

  bool Push() {
    int val = val_.load(std::memory_order_relaxed);
    for (;;) {
      VERIFY_GE(val, 0);
      VERIFY_LE(val, kQueueSize);
      if (val == kQueueSize) return false;
      if (val_.compare_exchange_weak(val, val + 1, std::memory_order_relaxed))
        return true;
    }
  }

  bool Pop() {
    int val = val_.load(std::memory_order_relaxed);