number_cache.h

// ---------------------------------------------------------------------
//
// Copyright (C) 1998 - 2018 by the deal.II authors
//
// This file is part of the deal.II library.
//
// The deal.II library is free software; you can use it, redistribute
// it, and/or modify it under the terms of the GNU Lesser General
// Public License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
// The full text of the license can be found in the file LICENSE at
// the top level of the deal.II distribution.
//
// ---------------------------------------------------------------------

#ifndef dealii_number_cache_h
#define dealii_number_cache_h

#include <deal.II/base/config.h>
#include <deal.II/base/index_set.h>

#include <vector>


DEAL_II_NAMESPACE_OPEN

namespace internal
{
  namespace DoFHandlerImplementation
  {
    struct NumberCache
    {
      NumberCache ();

      NumberCache (const NumberCache &) = default;

      NumberCache (NumberCache &&) = default;

      NumberCache (const types::global_dof_index n_global_dofs);


      NumberCache (const std::vector<IndexSet> &locally_owned_dofs_per_processor,
                   const unsigned int           my_rank);

      NumberCache &operator= (const NumberCache &) = default;

      NumberCache &operator= (NumberCache &&) = default;

      std::size_t memory_consumption () const;

      void clear ();

      types::global_dof_index n_global_dofs;

      types::global_dof_index n_locally_owned_dofs;

      IndexSet locally_owned_dofs;

      std::vector<types::global_dof_index> n_locally_owned_dofs_per_processor;

      std::vector<IndexSet> locally_owned_dofs_per_processor;

      template <class Archive>
      void serialize (Archive &ar,
                      const unsigned int version);
    };


    template <class Archive>
    void
    NumberCache::serialize (Archive &ar,
                            const unsigned int /*version*/)
    {
      ar &n_global_dofs &n_locally_owned_dofs;
      ar &locally_owned_dofs;
      ar &n_locally_owned_dofs_per_processor;
      ar &locally_owned_dofs_per_processor;
    }

  }
}


DEAL_II_NAMESPACE_CLOSE

#endif // dealii_dof_iterator_selector_h