IMachineMemoryWindowBaseInternal.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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/* IMachineMemoryWindowBaseInternal.h                          (C) 2000-2025 */
/*                                                                           */
/* Interface de classe permettant de créer une fenêtre mémoire pour un noeud */
/* de calcul. Cette fenêtre sera contigüe en mémoire.                        */
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#ifndef ARCCORE_MESSAGEPASSING_INTERNAL_IMACHINEMEMORYWINDOWBASEINTERNAL_H
#define ARCCORE_MESSAGEPASSING_INTERNAL_IMACHINEMEMORYWINDOWBASEINTERNAL_H
 
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#include "arccore/message_passing/MessagePassingGlobal.h"
#include "arccore/collections/Array.h"
 
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namespace Arcane::MessagePassing
{
 
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// TODO AH : Voir pour ajouter la possibilité de faire une fenêtre non-contigüe.

class ARCCORE_MESSAGEPASSING_EXPORT IMachineMemoryWindowBaseInternal
{
 public:
 
  virtual ~IMachineMemoryWindowBaseInternal() = default;
 
 public:

  virtual Int32 sizeofOneElem() const = 0;

  virtual Span<std::byte> segment() const = 0;

  virtual Span<std::byte> segment(Int32 rank) const = 0;

  virtual Span<std::byte> window() const = 0;

  virtual void resizeSegment(Int64 new_sizeof_segment) = 0;

  virtual ConstArrayView<Int32> machineRanks() const = 0;

  virtual void barrier() const = 0;
};
 
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} // End namespace Arccore::MessagePassing
 
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#endif