GhostLayerFromConnectivityComputer.h

// -*- tab-width: 2; indent-tabs-mode: nil; coding: utf-8-with-signature -*-
//-----------------------------------------------------------------------------
// Copyright 2000-2026 CEA (www.cea.fr) IFPEN (www.ifpenergiesnouvelles.com)
// See the top-level COPYRIGHT file for details.
// SPDX-License-Identifier: Apache-2.0
//-----------------------------------------------------------------------------
/*------------------------------------------------------------------------------*/
/* GhostLayerFromConnectivityComputer.h                           (C) 2000-2015 */
/*                                                                              */
/* Implementation of a ghost layer creation policy for connectivity             */
/*------------------------------------------------------------------------------*/
#ifndef ARCANE_DOF_GHOSTLAYERFROMCONNECTIVITYCOMPUTER_H
#define ARCANE_DOF_GHOSTLAYERFROMCONNECTIVITYCOMPUTER_H
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/*---------------------------------------------------------------------------*/
 
#include "arcane/utils/ArrayView.h"
#include "arcane/utils/ITraceMng.h"
 
#include "arcane/core/ArcaneTypes.h"
#include "arcane/core/IExtraGhostItemsBuilder.h"
#include "arcane/core/IItemConnectivity.h"
 
#include "arcane/mesh/DoFFamily.h"
#include "arcane/mesh/ItemConnectivity.h"
#include "arcane/mesh/IItemConnectivityGhostPolicy.h"
 
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/*---------------------------------------------------------------------------*/
 
namespace Arcane
{
 
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class ARCANE_MESH_EXPORT GhostLayerFromConnectivityComputer
: public IItemConnectivityGhostPolicy
{
 public:

  GhostLayerFromConnectivityComputer(IItemConnectivity* item_to_dofs);
 
  GhostLayerFromConnectivityComputer()
  : m_connectivity(NULL)
  , m_trace_mng(NULL)
  {}

  virtual ~GhostLayerFromConnectivityComputer() {}
 
 public:

  Int32ConstArrayView communicatingRanks();
  Int32ConstArrayView sharedItems(const Integer rank, const String& family_name);
  Int32ConstArrayView sharedItemsConnectedItems(const Integer rank, const String& family_name);
  void updateConnectivity(Int32ConstArrayView ghost_items, Int64ConstArrayView ghost_items_connected_items);
 
 protected:
 
  IItemConnectivity* m_connectivity;
  ITraceMng* m_trace_mng;
  SharedArray<Int32SharedArray> m_shared_items;
  SharedArray<Int32SharedArray> m_shared_items_connected_items;
 
 private:
 
  void _computeSharedItems();
};
 
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} // namespace Arcane
 
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#endif