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1 | // |
2 | // Copyright (c) 2013-2017 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 | ||
8 | #ifndef BEAST_WEBSOCKET_IMPL_ERROR_IPP | |
9 | #define BEAST_WEBSOCKET_IMPL_ERROR_IPP | |
10 | ||
11 | namespace boost { | |
12 | namespace system { | |
13 | template<> | |
14 | struct is_error_code_enum<beast::websocket::error> | |
15 | { | |
16 | static bool const value = true; | |
17 | }; | |
18 | } // system | |
19 | } // boost | |
20 | ||
21 | namespace beast { | |
22 | namespace websocket { | |
23 | namespace detail { | |
24 | ||
25 | class websocket_error_category : public error_category | |
26 | { | |
27 | public: | |
28 | const char* | |
29 | name() const noexcept override | |
30 | { | |
31 | return "websocket"; | |
32 | } | |
33 | ||
34 | std::string | |
35 | message(int ev) const override | |
36 | { | |
37 | switch(static_cast<error>(ev)) | |
38 | { | |
39 | case error::closed: return "WebSocket connection closed normally"; | |
40 | case error::failed: return "WebSocket connection failed due to a protocol violation"; | |
41 | case error::handshake_failed: return "WebSocket Upgrade handshake failed"; | |
42 | case error::keep_alive: return "WebSocket Upgrade handshake failed but connection is still open"; | |
43 | ||
44 | case error::response_malformed: return "malformed HTTP response"; | |
45 | case error::response_failed: return "upgrade request failed"; | |
46 | case error::response_denied: return "upgrade request denied"; | |
47 | case error::request_malformed: return "malformed HTTP request"; | |
48 | case error::request_invalid: return "upgrade request invalid"; | |
49 | case error::request_denied: return "upgrade request denied"; | |
50 | default: | |
51 | return "websocket error"; | |
52 | } | |
53 | } | |
54 | ||
55 | error_condition | |
56 | default_error_condition(int ev) const noexcept override | |
57 | { | |
58 | return error_condition(ev, *this); | |
59 | } | |
60 | ||
61 | bool | |
62 | equivalent(int ev, | |
63 | error_condition const& condition | |
64 | ) const noexcept override | |
65 | { | |
66 | return condition.value() == ev && | |
67 | &condition.category() == this; | |
68 | } | |
69 | ||
70 | bool | |
71 | equivalent(error_code const& error, int ev) const noexcept override | |
72 | { | |
73 | return error.value() == ev && | |
74 | &error.category() == this; | |
75 | } | |
76 | }; | |
77 | ||
78 | inline | |
79 | error_category const& | |
80 | get_error_category() | |
81 | { | |
82 | static detail::websocket_error_category const cat{}; | |
83 | return cat; | |
84 | } | |
85 | ||
86 | } // detail | |
87 | ||
88 | inline | |
89 | error_code | |
90 | make_error_code(error e) | |
91 | { | |
92 | return error_code( | |
93 | static_cast<std::underlying_type<error>::type>(e), | |
94 | detail::get_error_category()); | |
95 | } | |
96 | ||
97 | } // websocket | |
98 | } // beast | |
99 | ||
100 | #endif |