Method put

muduo/base/BoundedBlockingQueue.h:30–40

  }

  void put(const T& x)
  {
    MutexLockGuard lock(mutex_);
    while (queue_.full())
    {
      notFull_.wait();
    }
    assert(!queue_.full());
    queue_.push_back(x);
    notEmpty_.notify();
  }

  void put(T&& x)
  {