Method pop

src/caffe/util/blocking_queue.cpp:44–57

template<typename T>
T BlockingQueue<T>::pop(const string& log_on_wait) {
  boost::mutex::scoped_lock lock(sync_->mutex_);

  while (queue_.empty()) {
    if (!log_on_wait.empty()) {
      LOG_EVERY_N(INFO, 1000)<< log_on_wait;
    }
    sync_->condition_.wait(lock);
  }

  T t = queue_.front();
  queue_.pop();
  return t;
}

template<typename T>
bool BlockingQueue<T>::try_peek(T* t) {