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//
 
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// Copyright (c) 2026 Steve Gerbino
 
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//
 
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
 
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
 
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//
 
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// Official repository: https://github.com/cppalliance/corosio
 
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//
 
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#ifndef BOOST_COROSIO_DETAIL_UDP_SERVICE_HPP
 
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#define BOOST_COROSIO_DETAIL_UDP_SERVICE_HPP
 
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#include <boost/corosio/detail/config.hpp>
 
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#include <boost/corosio/udp_socket.hpp>
 
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#include <boost/corosio/endpoint.hpp>
 
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#include <boost/capy/ex/execution_context.hpp>
 
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#include <system_error>
 
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namespace boost::corosio::detail {
 
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/** Abstract UDP service base class.
 
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    Concrete implementations (epoll_udp_service,
 
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    select_udp_service, etc.) inherit from this class and
 
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    provide platform-specific datagram socket operations. The
 
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    context constructor installs whichever backend via
 
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    `make_service`, and `udp_socket.cpp` retrieves it via
 
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    `use_service<udp_service>()`.
 
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*/
 
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class BOOST_COROSIO_DECL udp_service
 
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    : public capy::execution_context::service
 
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    , public io_object::io_service
 
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{
 
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public:
 
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    /// Identifies this service for `execution_context` lookup.
 
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    using key_type = udp_service;
 
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    /** Open a datagram socket.
 
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        Creates a socket and associates it with the platform reactor.
 
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        @param impl The socket implementation to open.
 
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        @param family Address family (e.g. `AF_INET`, `AF_INET6`).
 
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        @param type Socket type (`SOCK_DGRAM`).
 
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        @param protocol Protocol number (`IPPROTO_UDP`).
 
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        @return Error code on failure, empty on success.
 
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    */
 
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    virtual std::error_code open_datagram_socket(
 
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        udp_socket::implementation& impl,
 
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        int family,
 
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        int type,
 
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        int protocol) = 0;
 
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    /** Bind a datagram socket to a local endpoint.
 
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        @param impl The socket implementation to bind.
 
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        @param ep The local endpoint to bind to.
 
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        @return Error code on failure, empty on success.
 
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    */
 
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    virtual std::error_code
 
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    bind_datagram(udp_socket::implementation& impl, endpoint ep) = 0;
 
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protected:
 
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    /// Construct the UDP service.
 
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    udp_service() = default;
 
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    /// Destroy the UDP service.
 
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    ~udp_service() override = default;
 
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};
 
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} // namespace boost::corosio::detail
 
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#endif // BOOST_COROSIO_DETAIL_UDP_SERVICE_HPP