ceph/src/common/ceph_releases.h

   1 // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
   2 // vim: ts=8 sw=2 smarttab
   3
   4 #pragma once
   5
   6 #include <cstdint>
   7 #include <iosfwd>
   8 #include <string_view>
   9
  10 #include "common/ceph_strings.h"
  11
  12 // the C++ version of CEPH_RELEASE_* defined by include/rados.h
  13 enum class ceph_release_t : std::uint8_t {
  14   unknown = 0,
  15   argonaut,
  16   bobtail,
  17   cuttlefish,
  18   dumpling,
  19   emperor,
  20   firefly,
  21   giant,
  22   hammer,
  23   infernalis,
  24   jewel,
  25   kraken,
  26   luminous,
  27   mimic,
  28   nautilus,
  29   octopus,
  30   pacific,
  31   quincy,
  32   max,
  33 };
  34
  35 std::ostream& operator<<(std::ostream& os, const ceph_release_t r);
  36
  37 inline bool operator!(ceph_release_t& r) {
  38   return (r < ceph_release_t::unknown ||
  39           r == ceph_release_t::unknown);
  40 }
  41
  42 inline ceph_release_t& operator--(ceph_release_t& r) {
  43   r = static_cast<ceph_release_t>(static_cast<uint8_t>(r) - 1);
  44   return r;
  45 }
  46
  47 inline ceph_release_t& operator++(ceph_release_t& r) {
  48   r = static_cast<ceph_release_t>(static_cast<uint8_t>(r) + 1);
  49   return r;
  50 }
  51
  52 inline bool operator<(ceph_release_t lhs, ceph_release_t rhs) {
  53   // we used to use -1 for invalid release
  54   if (static_cast<int8_t>(lhs) < 0) {
  55     return true;
  56   } else if (static_cast<int8_t>(rhs) < 0) {
  57     return false;
  58   }
  59   return static_cast<uint8_t>(lhs) < static_cast<uint8_t>(rhs);
  60 }
  61
  62 inline bool operator>(ceph_release_t lhs, ceph_release_t rhs) {
  63   // we used to use -1 for invalid release
  64   if (static_cast<int8_t>(lhs) < 0) {
  65     return false;
  66   } else if (static_cast<int8_t>(rhs) < 0) {
  67     return true;
  68   }
  69   return static_cast<uint8_t>(lhs) > static_cast<uint8_t>(rhs);
  70 }
  71
  72 inline bool operator>=(ceph_release_t lhs, ceph_release_t rhs) {
  73   return !(lhs < rhs);
  74 }
  75
  76 bool can_upgrade_from(ceph_release_t from_release,
  77                       std::string_view from_release_name,
  78                       std::ostream& err);
  79
  80 ceph_release_t ceph_release_from_name(std::string_view sv);
  81 ceph_release_t ceph_release();
  82
  83 inline std::string_view to_string(ceph_release_t r) {
  84   return ceph_release_name(static_cast<int>(r));
  85 }
  86 template<typename IntType> IntType to_integer(ceph_release_t r) {
  87   return static_cast<IntType>(r);
  88 }