include/boost/corosio/detail/udp_service.hpp
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| Line | TLA | Hits | Source Code |
|---|---|---|---|
| 1 | // | ||
| 2 | // Copyright (c) 2026 Steve Gerbino | ||
| 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/corosio | ||
| 8 | // | ||
| 9 | |||
| 10 | #ifndef BOOST_COROSIO_DETAIL_UDP_SERVICE_HPP | ||
| 11 | #define BOOST_COROSIO_DETAIL_UDP_SERVICE_HPP | ||
| 12 | |||
| 13 | #include <boost/corosio/detail/config.hpp> | ||
| 14 | #include <boost/corosio/udp_socket.hpp> | ||
| 15 | #include <boost/corosio/endpoint.hpp> | ||
| 16 | #include <boost/capy/ex/execution_context.hpp> | ||
| 17 | #include <system_error> | ||
| 18 | |||
| 19 | namespace boost::corosio::detail { | ||
| 20 | |||
| 21 | /** Abstract UDP service base class. | ||
| 22 | |||
| 23 | Concrete implementations (epoll_udp_service, | ||
| 24 | select_udp_service, etc.) inherit from this class and | ||
| 25 | provide platform-specific datagram socket operations. The | ||
| 26 | context constructor installs whichever backend via | ||
| 27 | `make_service`, and `udp_socket.cpp` retrieves it via | ||
| 28 | `use_service<udp_service>()`. | ||
| 29 | */ | ||
| 30 | class BOOST_COROSIO_DECL udp_service | ||
| 31 | : public capy::execution_context::service | ||
| 32 | , public io_object::io_service | ||
| 33 | { | ||
| 34 | public: | ||
| 35 | /// Identifies this service for `execution_context` lookup. | ||
| 36 | using key_type = udp_service; | ||
| 37 | |||
| 38 | /** Open a datagram socket. | ||
| 39 | |||
| 40 | Creates a socket and associates it with the platform reactor. | ||
| 41 | |||
| 42 | @param impl The socket implementation to open. | ||
| 43 | @param family Address family (e.g. `AF_INET`, `AF_INET6`). | ||
| 44 | @param type Socket type (`SOCK_DGRAM`). | ||
| 45 | @param protocol Protocol number (`IPPROTO_UDP`). | ||
| 46 | @return Error code on failure, empty on success. | ||
| 47 | */ | ||
| 48 | virtual std::error_code open_datagram_socket( | ||
| 49 | udp_socket::implementation& impl, | ||
| 50 | int family, | ||
| 51 | int type, | ||
| 52 | int protocol) = 0; | ||
| 53 | |||
| 54 | /** Assign an existing native socket handle to a socket. | ||
| 55 | |||
| 56 | Adopts a pre-created socket handle. On success the impl | ||
| 57 | takes ownership and will close the handle. On failure the | ||
| 58 | caller retains ownership and must close it. If the impl is | ||
| 59 | already open, its pending operations are cancelled and the | ||
| 60 | held socket is closed before the new one is adopted. | ||
| 61 | |||
| 62 | @param impl The socket implementation to assign to. | ||
| 63 | @param fd The native socket handle to adopt. | ||
| 64 | @return Error code on failure, empty on success. | ||
| 65 | */ | ||
| 66 | virtual std::error_code assign_socket( | ||
| 67 | udp_socket::implementation& impl, | ||
| 68 | native_handle_type fd) = 0; | ||
| 69 | |||
| 70 | /** Bind a datagram socket to a local endpoint. | ||
| 71 | |||
| 72 | @param impl The socket implementation to bind. | ||
| 73 | @param ep The local endpoint to bind to. | ||
| 74 | @return Error code on failure, empty on success. | ||
| 75 | */ | ||
| 76 | virtual std::error_code | ||
| 77 | bind_datagram(udp_socket::implementation& impl, endpoint ep) = 0; | ||
| 78 | |||
| 79 | protected: | ||
| 80 | /// Construct the UDP service. | ||
| 81 | 1603x | udp_service() = default; | |
| 82 | |||
| 83 | /// Destroy the UDP service. | ||
| 84 | 1603x | ~udp_service() override = default; | |
| 85 | }; | ||
| 86 | |||
| 87 | } // namespace boost::corosio::detail | ||
| 88 | |||
| 89 | #endif // BOOST_COROSIO_DETAIL_UDP_SERVICE_HPP | ||
| 90 |