MachineMemoryWindow.h

// -*- tab-width: 2; indent-tabs-mode: nil; coding: utf-8-with-signature -*-
//-----------------------------------------------------------------------------
// Copyright 2000-2025 CEA (www.cea.fr) IFPEN (www.ifpenergiesnouvelles.com)
// See the top-level COPYRIGHT file for details.
// SPDX-License-Identifier: Apache-2.0
//-----------------------------------------------------------------------------
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/* MachineMemoryWindow.h                                       (C) 2000-2025 */
/*                                                                           */
/* Classe permettant de créer une fenêtre mémoire partagée entre les         */
/* processus d'un même noeud.                                                */
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#ifndef ARCANE_CORE_MACHINEMEMORYWINDOW_H
#define ARCANE_CORE_MACHINEMEMORYWINDOW_H
 
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#include "arcane/core/ArcaneTypes.h"
#include "arcane/core/MachineMemoryWindowBase.h"
#include "arcane/utils/Ref.h"
 
#include "arccore/base/Span.h"
 
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namespace Arcane
{
 
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template <class Type>
class MachineMemoryWindow
{
 public:

  MachineMemoryWindow(IParallelMng* pm, Int64 nb_elem_segment)
  : m_impl(pm, nb_elem_segment, static_cast<Int32>(sizeof(Type)))
  {}
 
 public:

  Span<Type> segmentView() const
  {
    return asSpan<Type>(m_impl.segmentView());
  }

  Span<Type> segmentView(Int32 rank) const
  {
    return asSpan<Type>(m_impl.segmentView(rank));
  }

  Span<Type> windowView() const
  {
    return asSpan<Type>(m_impl.windowView());
  }

  Span<const Type> segmentConstView() const
  {
    return asSpan<const Type>(m_impl.segmentView());
  }

  Span<const Type> segmentConstView(Int32 rank) const
  {
    return asSpan<const Type>(m_impl.segmentView(rank));
  }

  Span<const Type> windowConstView() const
  {
    return asSpan<const Type>(m_impl.windowView());
  }

  void resizeSegment(Integer new_nb_elem) const
  {
    m_impl.resizeSegment(new_nb_elem);
  }

  ConstArrayView<Int32> machineRanks() const
  {
    return m_impl.machineRanks();
  }

  void barrier() const
  {
    m_impl.barrier();
  }
 
 private:
 
  MachineMemoryWindowBase m_impl;
};
 
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} // End namespace Arcane
 
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#endif