ceph/src/osd/error_code.h

   1 // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
   2 // vim: ts=8 sw=2 smarttab
   3 /*
   4  * Ceph - scalable distributed file system
   5  *
   6  * Copyright (C) 2019 Red Hat <contact@redhat.com>
   7  * Author: Adam C. Emerson <aemerson@redhat.com>
   8  *
   9  * This is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU Lesser General Public
  11  * License version 2.1, as published by the Free Software
  12  * Foundation.  See file COPYING.
  13  *
  14  */
  15
  16 #pragma once
  17
  18 #include <boost/system/error_code.hpp>
  19
  20 #include "include/rados.h"
  21
  22 const boost::system::error_category& osd_category() noexcept;
  23
  24 // Since the OSD mostly uses POSIX error codes plus a couple
  25 // additions, this will be a degenerate error category for now that
  26 // mostly forwards to POSIX.
  27
  28 enum class osd_errc {
  29   old_snapc = 85,  /* ORDERSNAP flag set; writer has old snapc*/
  30   blocklisted = 108 /* blocklisted */
  31 };
  32
  33 namespace boost::system {
  34 template<>
  35 struct is_error_code_enum<::osd_errc> {
  36   static const bool value = true;
  37 };
  38
  39 template<>
  40 struct is_error_condition_enum<::osd_errc> {
  41   static const bool value = false;
  42 };
  43 }
  44
  45 //  implicit conversion:
  46 inline boost::system::error_code make_error_code(osd_errc e) noexcept {
  47   return { static_cast<int>(e), osd_category() };
  48 }
  49
  50 // explicit conversion:
  51 inline boost::system::error_condition make_error_condition(osd_errc e) noexcept {
  52   return { static_cast<int>(e), osd_category() };
  53 }