Method TryPop

cpp/src/arrow/acero/concurrent_queue_internal.h:43–46

Pops the last item from the queue, or returns a nullopt if empty

  // Pops the last item from the queue, or returns a nullopt if empty
  std::optional<T> TryPop() {
    std::unique_lock<std::mutex> lock(mutex_);
    return TryPopUnlocked();
  }

  // Pushes an item to the queue
  void Push(const T& item) {