ceph/src/boost/boost/beast/websocket/impl/error.ipp

   1 //
   2 // Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
   3 //
   4 // Distributed under the Boost Software License, Version 1.0. (See accompanying
   5 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   6 //
   7 // Official repository: https://github.com/boostorg/beast
   8 //
   9
  10 #ifndef BOOST_BEAST_WEBSOCKET_IMPL_ERROR_IPP
  11 #define BOOST_BEAST_WEBSOCKET_IMPL_ERROR_IPP
  12
  13 namespace boost {
  14
  15 namespace system {
  16 template<>
  17 struct is_error_code_enum<beast::websocket::error>
  18 {
  19     static bool const value = true;
  20 };
  21 } // system
  22
  23 namespace beast {
  24 namespace websocket {
  25 namespace detail {
  26
  27 class websocket_error_category : public error_category
  28 {
  29 public:
  30     const char*
  31     name() const noexcept override
  32     {
  33         return "boost.beast.websocket";
  34     }
  35
  36     std::string
  37     message(int ev) const override
  38     {
  39         switch(static_cast<error>(ev))
  40         {
  41         default:
  42         case error::failed: return "WebSocket connection failed due to a protocol violation";
  43         case error::closed: return "WebSocket connection closed normally";
  44         case error::handshake_failed: return "WebSocket upgrade handshake failed";
  45         case error::buffer_overflow: return "WebSocket dynamic buffer overflow";
  46         case error::partial_deflate_block: return "WebSocket partial deflate block";
  47         }
  48     }
  49
  50     error_condition
  51     default_error_condition(int ev) const noexcept override
  52     {
  53         return error_condition(ev, *this);
  54     }
  55
  56     bool
  57     equivalent(int ev,
  58         error_condition const& condition
  59             ) const noexcept override
  60     {
  61         return condition.value() == ev &&
  62             &condition.category() == this;
  63     }
  64
  65     bool
  66     equivalent(error_code const& error, int ev) const noexcept override
  67     {
  68         return error.value() == ev &&
  69             &error.category() == this;
  70     }
  71 };
  72
  73 inline
  74 error_category const&
  75 get_error_category()
  76 {
  77     static detail::websocket_error_category const cat{};
  78     return cat;
  79 }
  80
  81 } // detail
  82
  83 inline
  84 error_code
  85 make_error_code(error e)
  86 {
  87     return error_code(
  88         static_cast<std::underlying_type<error>::type>(e),
  89             detail::get_error_category());
  90 }
  91
  92 } // websocket
  93 } // beast
  94 } // boost
  95
  96 #endif