Timestamp.h

/*
 * Copyright 2020 IFPEN-CEA
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * SPDX-License-Identifier: Apache-2.0
 */
 
#pragma once
 
#include <alien/utils/Precomp.h>
 
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namespace Alien
{
 
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class TimestampMng;
 
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class ALIEN_EXPORT Timestamp
{
 public:
  //! Constructeur de la classe
  /*! Si @name manager est nul, il n'y a pas de gestion de timestamp */
  Timestamp(const TimestampMng* manager);
 
  //! Destructeur de la classe
  virtual ~Timestamp() {}
 
 public:
  //! Donne la valeur courante du timestamp
  virtual Int64 timestamp() const;
 
  //! Met à jour le timestamp
  /*! La politique actuelle position ce timestamp comme le plus 'à jour' de ceux associés
   * aux même manager */
  void updateTimestamp();
 
  //! Copy un autre timestamp
  void copyTimestamp(const Timestamp& v);
 
 public:
  //! Méthode interne de changement de valeur par le manager
  /*! Le paramètre @name manager permet de garantir que l'identité du manager effectuant
   *  cette requête de modification et de garantir l'intégrité des objets */
  void setTimestamp(const TimestampMng* manager, const Int64 timestamp);
 
 private:
  Int64 m_timestamp;
  const TimestampMng* m_manager;
};
 
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} // namespace Alien
 
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