ComputeLinearFVGreenGaussGradientVolumeThread.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
 
#include "MooseTypes.h"
#include "MooseMesh.h"
#include "MooseLinearVariableFV.h"
 
// libmesh
#include "libmesh/elem_range.h"
#include "libmesh/threads.h"
#include "libmesh/system.h"
 
#include <unordered_set>
 
class FEProblemBase;
class SystemBase;
 
class ComputeLinearFVGreenGaussGradientVolumeThread
{
public:
  ComputeLinearFVGreenGaussGradientVolumeThread(
      FEProblemBase & fe_problem,
      SystemBase & system,
      std::vector<std::unique_ptr<NumericVector<Number>>> & gradient,
      const std::unordered_set<unsigned int> & gradient_variables);
 
  ComputeLinearFVGreenGaussGradientVolumeThread(ComputeLinearFVGreenGaussGradientVolumeThread & x,
                                                Threads::split split);
 
  ~ComputeLinearFVGreenGaussGradientVolumeThread();
 
  using ElemInfoRange = StoredRange<MooseMesh::const_elem_info_iterator, const ElemInfo *>;
  void operator()(const ElemInfoRange & range);
 
  void join(const ComputeLinearFVGreenGaussGradientVolumeThread & y);
 
protected:
  // Reference to the problem
  FEProblemBase & _fe_problem;
 
  const unsigned int _dim;
 
  SystemBase & _system;
 
  const libMesh::System & _libmesh_system;
 
  const unsigned int _system_number;
 
  THREAD_ID _tid;
 
  MooseLinearVariableFV<Real> * _current_var;
 
  std::vector<std::unique_ptr<NumericVector<Number>>> & _gradient;
 
  std::vector<Real *> _gradient_data;
 
  const bool _owns_gradient_data;
 
  const std::unordered_set<unsigned int> & _gradient_variables;
};