NodalNormalsPreprocessor.h

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//* This file is part of the MOOSE framework
//* https://mooseframework.inl.gov
//*
//* All rights reserved, see COPYRIGHT for full restrictions
//* https://github.com/idaholab/moose/blob/master/COPYRIGHT
//*
//* Licensed under LGPL 2.1, please see LICENSE for details
//* https://www.gnu.org/licenses/lgpl-2.1.html
 
#pragma once
 
// MOOSE includes
#include "ElementUserObject.h"
#include "BoundaryRestrictable.h"
 
#include "libmesh/fe_type.h"
 
#include <mutex>
 
class AuxiliarySystem;
 
class NodalNormalsPreprocessor : public ElementUserObject
{
public:
  static InputParameters validParams();
 
  NodalNormalsPreprocessor(const InputParameters & parameters);
 
  virtual void initialize() override;
  virtual void finalize() override;
  virtual void execute() override;
  virtual void threadJoin(const UserObject & /*uo*/) override {}
 
protected:
  AuxiliarySystem & _aux;
  libMesh::FEType _fe_type;
  bool _has_corners;
  std::vector<BoundaryID> _boundaries;
  BoundaryID _corner_boundary_id;
 
  const VariablePhiGradient & _grad_phi;
 
private:
  static std::mutex _nodal_normals_mutex;
 
  // For access to mutex
  friend class NodalNormalsCorner;
  friend class NodalNormalsEvaluator;
};