TimestampInterface.hpp

/*
 * Copyright (c) 2022-2023, Soliton Systems K.K. All rights reserved.
 * Use in source and binary forms, with or without modification, 
 * is permitted provided that the following a condition is met:
 *
 * Use is permitted only in accordance with the terms and 
 * conditions set forth in the Software License Agreement available 
 * at https://zao-sdk.org/license-agreement/.
 */
#ifndef ZEP_TIMESTAMP_INTERFACE_HPP_
#define ZEP_TIMESTAMP_INTERFACE_HPP_
 
#include <cstdint>
 
namespace zep {
 
class TimestampInterface {
 public:
  using Rep = std::uint64_t;
 
  using ClockRep = std::uint64_t;
 
  virtual void GetRatio(std::intmax_t& numerator,
                        std::intmax_t& denominator) const noexcept = 0;
 
  virtual void SetCurrentTimestamp(Rep timestamp) noexcept = 0;
 
  virtual bool GetCurrentTimestamp(Rep& timestamp) const noexcept = 0;
 
  virtual bool ConvertToClock(Rep timestamp,
                              ClockRep& clock) const noexcept = 0;
 
  virtual bool ConvertFromClock(ClockRep clock,
                                Rep& timestamp) const noexcept = 0;
 
  virtual ~TimestampInterface() noexcept = default;
};
 
}  // namespace zep
 
#endif  // ZEP_TIMESTAMP_INTERFACE_HPP_