| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | // | ||
| 2 | // Copyright (c) 2021 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/CPPAlliance/http_proto | ||
| 8 | // | ||
| 9 | |||
| 10 | #ifndef BOOST_HTTP_PROTO_CONTEXT_HPP | ||
| 11 | #define BOOST_HTTP_PROTO_CONTEXT_HPP | ||
| 12 | |||
| 13 | #include <boost/http_proto/detail/config.hpp> | ||
| 14 | #include <boost/http_proto/string_view.hpp> | ||
| 15 | #include <boost/http_proto/service/service.hpp> | ||
| 16 | #include <boost/http_proto/detail/type_index.hpp> | ||
| 17 | #include <memory> | ||
| 18 | |||
| 19 | namespace boost { | ||
| 20 | namespace http_proto { | ||
| 21 | |||
| 22 | #ifndef BOOST_HTTP_PROTO_DOCS | ||
| 23 | class codecs; | ||
| 24 | #endif | ||
| 25 | |||
| 26 | class context | ||
| 27 | { | ||
| 28 | struct data; | ||
| 29 | |||
| 30 | http_proto::codecs* codecs_; | ||
| 31 | |||
| 32 | public: | ||
| 33 | context(context const&) = delete; | ||
| 34 | context& operator=( | ||
| 35 | context const&) = delete; | ||
| 36 | |||
| 37 | BOOST_HTTP_PROTO_DECL | ||
| 38 | ~context(); | ||
| 39 | |||
| 40 | BOOST_HTTP_PROTO_DECL | ||
| 41 | context() noexcept; | ||
| 42 | |||
| 43 | http_proto::codecs& | ||
| 44 | 3 | codecs() noexcept | |
| 45 | { | ||
| 46 | 3 | return *codecs_; | |
| 47 | } | ||
| 48 | |||
| 49 | //-------------------------------------------- | ||
| 50 | |||
| 51 | /** Create a service. | ||
| 52 | |||
| 53 | The service must not already exist. | ||
| 54 | |||
| 55 | @par Exception Safety | ||
| 56 | Strong guarantee. | ||
| 57 | Calls to allocate may throw. | ||
| 58 | |||
| 59 | @throw std::invalid_argument `find_service<T> != nullptr` | ||
| 60 | |||
| 61 | @return A reference to the new service. | ||
| 62 | |||
| 63 | @tparam T The service type. | ||
| 64 | |||
| 65 | @param args Arguments forwarded to the | ||
| 66 | service constructor. | ||
| 67 | */ | ||
| 68 | template< | ||
| 69 | class T, | ||
| 70 | class... Args> | ||
| 71 | T& | ||
| 72 | make_service( | ||
| 73 | Args&&... args); | ||
| 74 | |||
| 75 | /** Return an existing service | ||
| 76 | |||
| 77 | The function returns `nullptr` if the | ||
| 78 | service does not exist. | ||
| 79 | |||
| 80 | @par Complexity | ||
| 81 | Constant. | ||
| 82 | |||
| 83 | @par Exception Safety | ||
| 84 | Throws nothing. | ||
| 85 | |||
| 86 | @return A pointer to the service, | ||
| 87 | or `nullptr`. | ||
| 88 | |||
| 89 | @tparam T The service type. | ||
| 90 | */ | ||
| 91 | template<class T> | ||
| 92 | T* | ||
| 93 | find_service() const noexcept; | ||
| 94 | |||
| 95 | /** Return true if a service exists | ||
| 96 | |||
| 97 | @par Effects | ||
| 98 | @code | ||
| 99 | return this->find_service<T>() != nullptr; | ||
| 100 | @endcode | ||
| 101 | |||
| 102 | @par Complexity | ||
| 103 | Constant. | ||
| 104 | |||
| 105 | @par Exception Safety | ||
| 106 | Throws nothing. | ||
| 107 | |||
| 108 | @return `true` if the service exists. | ||
| 109 | |||
| 110 | @tparam T The service type. | ||
| 111 | */ | ||
| 112 | template<class T> | ||
| 113 | bool | ||
| 114 | has_service() const noexcept; | ||
| 115 | |||
| 116 | /** Return a reference to an existing service | ||
| 117 | |||
| 118 | The service must exist, or else an | ||
| 119 | exception is thrown. | ||
| 120 | |||
| 121 | @par Complexity | ||
| 122 | Constant. | ||
| 123 | |||
| 124 | @par Exception Safety | ||
| 125 | Strong guarantee. | ||
| 126 | |||
| 127 | @throw std::invalid_argument `find_service<T> == nullptr`. | ||
| 128 | |||
| 129 | @return A reference to the service. | ||
| 130 | |||
| 131 | @tparam T The service type. | ||
| 132 | */ | ||
| 133 | template<class T> | ||
| 134 | T& | ||
| 135 | get_service() const; | ||
| 136 | |||
| 137 | private: | ||
| 138 | BOOST_HTTP_PROTO_DECL | ||
| 139 | service* | ||
| 140 | find_service_impl( | ||
| 141 | detail::type_index ti) noexcept; | ||
| 142 | |||
| 143 | BOOST_HTTP_PROTO_DECL | ||
| 144 | service& | ||
| 145 | make_service_impl( | ||
| 146 | detail::type_index ti, | ||
| 147 | std::unique_ptr<service> sp); | ||
| 148 | |||
| 149 | std::unique_ptr<data> p_; | ||
| 150 | }; | ||
| 151 | |||
| 152 | } // http_proto | ||
| 153 | } // boost | ||
| 154 | |||
| 155 | #include <boost/http_proto/impl/context.hpp> | ||
| 156 | |||
| 157 | #endif | ||
| 158 |