PartitionId.hpp

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/*
 * ----------------- BEGIN LICENSE BLOCK ---------------------------------
 *
 * Copyright (C) 2018-2020 Intel Corporation
 *
 * SPDX-License-Identifier: MIT
 *
 * ----------------- END LICENSE BLOCK -----------------------------------
 */
 
#pragma once
 
#include <cmath>
#include <cstdint>
#include <iostream>
#include <limits>
#include <sstream>
#include <stdexcept>
#include "spdlog/fmt/ostr.h"
#include "spdlog/spdlog.h"
namespace ad {
namespace map {
namespace access {
 
#define AD_MAP_ACCESS_PARTITIONID_THROWS_EXCEPTION 1
 
#if SAFE_DATATYPES_EXPLICIT_CONVERSION
 
#define _AD_MAP_ACCESS_PARTITIONID_EXPLICIT_CONVERSION_ explicit
#else
 
#define _AD_MAP_ACCESS_PARTITIONID_EXPLICIT_CONVERSION_
#endif
 
class PartitionId
{
public:
  static const uint64_t cMinValue;
 
  static const uint64_t cMaxValue;
 
  PartitionId()
    : mPartitionId(std::numeric_limits<uint64_t>::quiet_NaN())
  {
  }
 
  _AD_MAP_ACCESS_PARTITIONID_EXPLICIT_CONVERSION_ PartitionId(uint64_t const iPartitionId)
    : mPartitionId(iPartitionId)
  {
  }
 
  PartitionId(const PartitionId &other) = default;
 
  PartitionId(PartitionId &&other) = default;
 
  PartitionId &operator=(const PartitionId &other) = default;
 
  PartitionId &operator=(PartitionId &&other) = default;
 
  bool operator==(const PartitionId &other) const
  {
    ensureValid();
    other.ensureValid();
    return mPartitionId == other.mPartitionId;
  }
 
  bool operator!=(const PartitionId &other) const
  {
    return !operator==(other);
  }
 
  bool operator>(const PartitionId &other) const
  {
    ensureValid();
    other.ensureValid();
    return (mPartitionId > other.mPartitionId) && operator!=(other);
  }
 
  bool operator<(const PartitionId &other) const
  {
    ensureValid();
    other.ensureValid();
    return (mPartitionId < other.mPartitionId) && operator!=(other);
  }
 
  bool operator>=(const PartitionId &other) const
  {
    ensureValid();
    other.ensureValid();
    return ((mPartitionId > other.mPartitionId) || operator==(other));
  }
 
  bool operator<=(const PartitionId &other) const
  {
    ensureValid();
    other.ensureValid();
    return ((mPartitionId < other.mPartitionId) || operator==(other));
  }
 
  PartitionId operator+(const PartitionId &other) const
  {
    ensureValid();
    other.ensureValid();
    PartitionId const result(mPartitionId + other.mPartitionId);
    result.ensureValid();
    return result;
  }
 
  PartitionId &operator+=(const PartitionId &other)
  {
    ensureValid();
    other.ensureValid();
    mPartitionId += other.mPartitionId;
    ensureValid();
    return *this;
  }
 
  PartitionId operator-(const PartitionId &other) const
  {
    ensureValid();
    other.ensureValid();
    PartitionId const result(mPartitionId - other.mPartitionId);
    result.ensureValid();
    return result;
  }
 
  PartitionId operator-=(const PartitionId &other)
  {
    ensureValid();
    other.ensureValid();
    mPartitionId -= other.mPartitionId;
    ensureValid();
    return *this;
  }
 
  _AD_MAP_ACCESS_PARTITIONID_EXPLICIT_CONVERSION_ operator uint64_t() const
  {
    return mPartitionId;
  }
 
  bool isValid() const
  {
    auto const valueClass = std::fpclassify(mPartitionId);
    return ((valueClass == FP_NORMAL) || (valueClass == FP_ZERO)) && (cMinValue <= mPartitionId)
      && (mPartitionId <= cMaxValue);
  }
 
  void ensureValid() const
  {
    if (!isValid())
    {
      spdlog::info("ensureValid(::ad::map::access::PartitionId)>> {} value out of range", *this); // LCOV_EXCL_BR_LINE
#if (AD_MAP_ACCESS_PARTITIONID_THROWS_EXCEPTION == 1)
      throw std::out_of_range("PartitionId value out of range"); // LCOV_EXCL_BR_LINE
#endif
    }
  }
 
  void ensureValidNonZero() const
  {
    ensureValid();
    if (operator==(PartitionId(0))) // LCOV_EXCL_BR_LINE
    {
      spdlog::info("ensureValid(::ad::map::access::PartitionId)>> {} value is zero", *this); // LCOV_EXCL_BR_LINE
#if (AD_MAP_ACCESS_PARTITIONID_THROWS_EXCEPTION == 1)
      throw std::out_of_range("PartitionId value is zero"); // LCOV_EXCL_BR_LINE
#endif
    }
  }
 
  static PartitionId getMin()
  {
    return PartitionId(cMinValue);
  }
 
  static PartitionId getMax()
  {
    return PartitionId(cMaxValue);
  }
 
private:
  uint64_t mPartitionId;
};
 
} // namespace access
} // namespace map
} // namespace ad
namespace std {
 
template <> class numeric_limits<::ad::map::access::PartitionId> : public numeric_limits<uint64_t>
{
public:
  static inline ::ad::map::access::PartitionId lowest()
  {
    return ::ad::map::access::PartitionId::getMin();
  }
  static inline ::ad::map::access::PartitionId max()
  {
    return ::ad::map::access::PartitionId::getMax();
  }
 
  static inline ::ad::map::access::PartitionId epsilon()
  {
    return ::ad::map::access::PartitionId(0);
  }
};
 
} // namespace std
 
#ifndef GEN_GUARD_AD_MAP_ACCESS_PARTITIONID
#define GEN_GUARD_AD_MAP_ACCESS_PARTITIONID
 
namespace ad {
namespace map {
namespace access {
 
inline std::ostream &operator<<(std::ostream &os, PartitionId const &_value)
{
  return os << uint64_t(_value);
}
 
} // namespace access
} // namespace map
} // namespace ad
 
namespace std {
inline std::string to_string(::ad::map::access::PartitionId const &value)
{
  return to_string(static_cast<uint64_t>(value));
}
} // namespace std
#endif // GEN_GUARD_AD_MAP_ACCESS_PARTITIONID