text: #include <boost/thread.hpp>
  #include "caffe/layer.hpp"
  
  namespace caffe {
  
  template <typename Dtype>
  void Layer<Dtype>::InitMutex() {
    forward_mutex_.reset(new boost::mutex());
  }
  
  template <typename Dtype>
  void Layer<Dtype>::Lock() {
    if (IsShared()) {
      forward_mutex_->lock();
    }
  }
  
  template <typename Dtype>
  void Layer<Dtype>::Unlock() {
    if (IsShared()) {
      forward_mutex_->unlock();
    }
  }
  
  INSTANTIATE_CLASS(Layer);
  
  }  // namespace caffe
  