IContigMachineShMemWinBaseInternal.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
//-----------------------------------------------------------------------------
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/* IContigMachineShMemWinBaseInternal.h                        (C) 2000-2026 */
/*                                                                           */
/* Class interface allowing the creation of a memory window for a node       */
/* of computation. This window will be contiguous in memory.                 */
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#ifndef ARCCORE_MESSAGEPASSING_INTERNAL_ICONTIGMACHINESHMEMWINBASEINTERNAL_H
#define ARCCORE_MESSAGEPASSING_INTERNAL_ICONTIGMACHINESHMEMWINBASEINTERNAL_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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class ARCCORE_MESSAGEPASSING_EXPORT IContigMachineShMemWinBaseInternal
{
 public:
 
  virtual ~IContigMachineShMemWinBaseInternal() = default;
 
 public:

  virtual Int32 sizeofOneElem() const = 0;

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

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

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

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

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

  virtual Span<const std::byte> windowConstView() 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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} // namespace Arcane::MessagePassing
 
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#endif