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1 | // | ||
2 | // Copyright (c) 2021 Vinnie Falco (vinnie.falco@gmail.com) | ||
3 | // Copyright (c) 2024 Christian Mazakas | ||
4 | // | ||
5 | // Distributed under the Boost Software License, Version 1.0. (See accompanying | ||
6 | // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | ||
7 | // | ||
8 | // Official repository: https://github.com/cppalliance/http_proto | ||
9 | // | ||
10 | |||
11 | #ifndef BOOST_HTTP_PROTO_MESSAGE_VIEW_BASE_HPP | ||
12 | #define BOOST_HTTP_PROTO_MESSAGE_VIEW_BASE_HPP | ||
13 | |||
14 | #include <boost/http_proto/detail/config.hpp> | ||
15 | #include <boost/http_proto/fields_view_base.hpp> | ||
16 | #include <boost/url/grammar/recycled.hpp> | ||
17 | #include <boost/url/grammar/type_traits.hpp> | ||
18 | #include <memory> | ||
19 | #include <string> | ||
20 | |||
21 | namespace boost { | ||
22 | namespace http_proto { | ||
23 | |||
24 | /** Provides message metadata for requests and responses | ||
25 | */ | ||
26 | class BOOST_SYMBOL_VISIBLE | ||
27 | message_view_base | ||
28 | : public virtual fields_view_base | ||
29 | { | ||
30 | friend class request_view; | ||
31 | friend class response_view; | ||
32 | friend class message_base; | ||
33 | |||
34 | 734 | message_view_base() noexcept | |
35 | // VFALCO This ctor-init has to be | ||
36 | // here even though it isn't called, | ||
37 | // so nullptr doesn't matter. | ||
38 | 734 | : fields_view_base(nullptr) | |
39 | { | ||
40 | 734 | } | |
41 | |||
42 | explicit | ||
43 | message_view_base( | ||
44 | detail::header const* ph) noexcept | ||
45 | : fields_view_base(ph) | ||
46 | { | ||
47 | } | ||
48 | |||
49 | public: | ||
50 | //-------------------------------------------- | ||
51 | // | ||
52 | // Metadata | ||
53 | // | ||
54 | //-------------------------------------------- | ||
55 | |||
56 | /** Return the type of payload of this message | ||
57 | */ | ||
58 | auto | ||
59 | 38 | payload() const noexcept -> | |
60 | http_proto::payload | ||
61 | { | ||
62 | 38 | return ph_->md.payload; | |
63 | } | ||
64 | |||
65 | /** Return the payload size | ||
66 | |||
67 | When @ref payload returns @ref payload::size, | ||
68 | this function returns the number of octets | ||
69 | in the actual message payload. | ||
70 | */ | ||
71 | std::uint64_t | ||
72 | 2 | payload_size() const noexcept | |
73 | { | ||
74 |
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2 | BOOST_ASSERT( |
75 | payload() == payload::size); | ||
76 | 2 | return ph_->md.payload_size; | |
77 | } | ||
78 | |||
79 | /** Return true if semantics indicate connection persistence | ||
80 | */ | ||
81 | bool | ||
82 | 22 | keep_alive() const noexcept | |
83 | { | ||
84 | 22 | return ph_->keep_alive(); | |
85 | } | ||
86 | |||
87 | /** Return metadata about the message | ||
88 | */ | ||
89 | auto | ||
90 | 142 | metadata() const noexcept -> | |
91 | http_proto::metadata const& | ||
92 | { | ||
93 | 142 | return ph_->md; | |
94 | } | ||
95 | |||
96 | /** Return true if the message is using a chunked | ||
97 | transfer encoding. | ||
98 | */ | ||
99 | bool | ||
100 | 30 | chunked() const noexcept | |
101 | { | ||
102 | 30 | return ph_->md.transfer_encoding.is_chunked; | |
103 | } | ||
104 | }; | ||
105 | |||
106 | } // http_proto | ||
107 | } // boost | ||
108 | |||
109 | #endif | ||
110 |