| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | // | ||
| 2 | // Copyright (c) 2023 Vinnie Falco (vinnie.falco@gmail.com) | ||
| 3 | // Copyright (c) 2025 Mohammad Nejati | ||
| 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_IMPL_SERIALIZER_HPP | ||
| 12 | #define BOOST_HTTP_PROTO_IMPL_SERIALIZER_HPP | ||
| 13 | |||
| 14 | #include <boost/http_proto/detail/except.hpp> | ||
| 15 | |||
| 16 | namespace boost { | ||
| 17 | namespace http_proto { | ||
| 18 | |||
| 19 | class serializer::cbs_gen | ||
| 20 | { | ||
| 21 | public: | ||
| 22 | struct stats_t | ||
| 23 | { | ||
| 24 | std::size_t size = 0; | ||
| 25 | std::size_t count = 0; | ||
| 26 | }; | ||
| 27 | |||
| 28 | // Return the next non-empty buffer or an | ||
| 29 | // empty buffer if none remain. | ||
| 30 | virtual | ||
| 31 | buffers::const_buffer | ||
| 32 | next() = 0; | ||
| 33 | |||
| 34 | // Return the total size and count of | ||
| 35 | // remaining non-empty buffers. | ||
| 36 | virtual | ||
| 37 | stats_t | ||
| 38 | stats() const = 0; | ||
| 39 | |||
| 40 | // Return true if there are no remaining | ||
| 41 | // non-empty buffers. | ||
| 42 | virtual | ||
| 43 | bool | ||
| 44 | is_empty() const = 0; | ||
| 45 | }; | ||
| 46 | |||
| 47 | template<class ConstBufferSequence> | ||
| 48 | class serializer::cbs_gen_impl | ||
| 49 | : public cbs_gen | ||
| 50 | { | ||
| 51 | using it_t = decltype(buffers::begin( | ||
| 52 | std::declval<ConstBufferSequence>())); | ||
| 53 | |||
| 54 | ConstBufferSequence cbs_; | ||
| 55 | it_t curr_; | ||
| 56 | |||
| 57 | public: | ||
| 58 | using const_buffer = | ||
| 59 | buffers::const_buffer; | ||
| 60 | |||
| 61 | explicit | ||
| 62 | 32 | cbs_gen_impl(ConstBufferSequence cbs) | |
| 63 | 48 | : cbs_(std::move(cbs)) | |
| 64 | 48 | , curr_(buffers::begin(cbs_)) | |
| 65 | { | ||
| 66 | 32 | } | |
| 67 | |||
| 68 | const_buffer | ||
| 69 | 2104 | next() override | |
| 70 | { | ||
| 71 |
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2108 | while(curr_ != buffers::end(cbs_)) |
| 72 | { | ||
| 73 | // triggers conversion operator | ||
| 74 | 2088 | const_buffer buf = *curr_++; | |
| 75 |
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2088 | if(buf.size() != 0) |
| 76 | 2084 | return buf; | |
| 77 | } | ||
| 78 | 20 | return {}; | |
| 79 | } | ||
| 80 | |||
| 81 | stats_t | ||
| 82 | 16 | stats() const override | |
| 83 | { | ||
| 84 | 16 | stats_t r; | |
| 85 |
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208 | for(auto it = curr_; it != buffers::end(cbs_); ++it) |
| 86 | { | ||
| 87 | // triggers conversion operator | ||
| 88 | 192 | const_buffer buf = *it; | |
| 89 |
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192 | if(buf.size() != 0) |
| 90 | { | ||
| 91 | 92 | r.size += buf.size(); | |
| 92 | 92 | r.count += 1; | |
| 93 | } | ||
| 94 | } | ||
| 95 | 16 | return r; | |
| 96 | } | ||
| 97 | |||
| 98 | bool | ||
| 99 | 8 | is_empty() const override | |
| 100 | { | ||
| 101 |
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8 | for(auto it = curr_; it != buffers::end(cbs_); ++it) |
| 102 | { | ||
| 103 | // triggers conversion operator | ||
| 104 | 4 | const_buffer buf = *it; | |
| 105 |
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4 | if(buf.size() != 0) |
| 106 | 4 | return false; | |
| 107 | } | ||
| 108 | 4 | return true; | |
| 109 | } | ||
| 110 | }; | ||
| 111 | |||
| 112 | //--------------------------------------------------------- | ||
| 113 | |||
| 114 | template< | ||
| 115 | class ConstBufferSequence, | ||
| 116 | class> | ||
| 117 | void | ||
| 118 | 32 | serializer:: | |
| 119 | start( | ||
| 120 | message_view_base const& m, | ||
| 121 | ConstBufferSequence&& cbs) | ||
| 122 | { | ||
| 123 | static_assert(buffers::is_const_buffer_sequence< | ||
| 124 | ConstBufferSequence>::value, | ||
| 125 | "ConstBufferSequence type requirements not met"); | ||
| 126 | |||
| 127 | 32 | start_init(m); | |
| 128 | 32 | start_buffers( | |
| 129 | m, | ||
| 130 | 32 | ws().emplace<cbs_gen_impl<typename | |
| 131 | 32 | std::decay<ConstBufferSequence>::type>>( | |
| 132 | std::forward<ConstBufferSequence>(cbs))); | ||
| 133 | 32 | } | |
| 134 | |||
| 135 | template< | ||
| 136 | class Source, | ||
| 137 | class... Args, | ||
| 138 | class> | ||
| 139 | Source& | ||
| 140 | 25 | serializer:: | |
| 141 | start( | ||
| 142 | message_view_base const& m, | ||
| 143 | Args&&... args) | ||
| 144 | { | ||
| 145 | static_assert( | ||
| 146 | !std::is_abstract<Source>::value, ""); | ||
| 147 | static_assert( | ||
| 148 | std::is_constructible<Source, Args...>::value || | ||
| 149 | std::is_constructible<Source, detail::workspace&, Args...>::value, | ||
| 150 | "The Source cannot be constructed with the given arguments"); | ||
| 151 | |||
| 152 | 25 | start_init(m); | |
| 153 | 25 | auto& source = ws().emplace<Source>( | |
| 154 | std::forward<Args>(args)...); | ||
| 155 | 25 | start_source(m, source); | |
| 156 | 25 | return source; | |
| 157 | } | ||
| 158 | |||
| 159 | } // http_proto | ||
| 160 | } // boost | ||
| 161 | |||
| 162 | #endif | ||
| 163 |