Method dequeue

src/Queue.cpp:16–27

}

std::unique_ptr<Event> EventQueue::dequeue() {
  std::lock_guard<std::mutex> lock(mutex);
  if (queue.empty()) {
    return nullptr;
  }

  auto &front = queue.front();
  auto retVal = std::move(front);
  queue.pop_front();

  return retVal;
}

std::unique_ptr<std::vector<std::unique_ptr<Event>>> EventQueue::dequeueAll() {
  std::lock_guard<std::mutex> lock(mutex);