VariableRefArrayLock.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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/* VariableRefArrayLock.h                                      (C) 2000-2025 */
/*                                                                           */
/* Lock on an array variable.                                                */
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#ifndef ARCANE_CORE_VARIABLEREFARRAYLOCK_H
#define ARCANE_CORE_VARIABLEREFARRAYLOCK_H
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#include "arcane/utils/Array.h"
 
#include "arcane/core/IVariable.h"
 
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namespace Arcane
{
 
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template <typename DataType>
class VariableRefArrayLockT
{
 public:
 
  typedef Array<DataType> ValueType;
  typedef VariableRefArrayLockT<DataType> ThatClass;
 
 public:
 
  VariableRefArrayLockT(ValueType& v, IVariable* var)
  : m_value(v)
  , m_variable(var)
  , m_saved_ptr(v.data())
  , m_saved_size(v.size())
  {
  }
 
  ~VariableRefArrayLockT()
  {
    if (m_value.data() != m_saved_ptr || m_value.size() != m_saved_size)
      m_variable->syncReferences();
  }
 
 public:
 
  VariableRefArrayLockT(const VariableRefArrayLockT<DataType>& rhs) = default;
  ThatClass& operator=(const ThatClass& rhs) = default;
 
 public:
 
  ARCCORE_DEPRECATED_2021("This class is deprecated")
  ValueType& value() { return m_value; }
 
 private:
 
  ValueType& m_value;
  IVariable* m_variable;
  DataType* m_saved_ptr;
  Integer m_saved_size;
};
 
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} // End namespace Arcane
 
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#endif