include/boost/corosio/native/detail/select/select_socket.hpp

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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_NATIVE_DETAIL_SELECT_SELECT_SOCKET_HPP
11		#define BOOST_COROSIO_NATIVE_DETAIL_SELECT_SELECT_SOCKET_HPP
12
13		#include <boost/corosio/detail/platform.hpp>
14
15		#if BOOST_COROSIO_HAS_SELECT
16
17		#include <boost/corosio/tcp_socket.hpp>
18		#include <boost/capy/ex/executor_ref.hpp>
19		#include <boost/corosio/detail/intrusive.hpp>
20
21		#include <boost/corosio/native/detail/select/select_op.hpp>
22
23		#include <memory>
24
25		namespace boost::corosio::detail {
26
27		class select_socket_service;
28
29		/// Socket implementation for select backend.
30		class select_socket final
31		: public tcp_socket::implementation
32		, public std::enable_shared_from_this<select_socket>
33		, public intrusive_list<select_socket>::node
34		{
35		friend class select_socket_service;
36
37		public:
38		explicit select_socket(select_socket_service& svc) noexcept;
39
40		std::coroutine_handle<> connect(
41		std::coroutine_handle<>,
42		capy::executor_ref,
43		endpoint,
44		std::stop_token,
45		std::error_code*) override;
46
47		std::coroutine_handle<> read_some(
48		std::coroutine_handle<>,
49		capy::executor_ref,
50		io_buffer_param,
51		std::stop_token,
52		std::error_code*,
53		std::size_t*) override;
54
55		std::coroutine_handle<> write_some(
56		std::coroutine_handle<>,
57		capy::executor_ref,
58		io_buffer_param,
59		std::stop_token,
60		std::error_code*,
61		std::size_t*) override;
62
63		std::error_code shutdown(tcp_socket::shutdown_type what) noexcept override;
64
65	18799	native_handle_type native_handle() const noexcept override
66		{
67	18799	return fd_;
68		}
69
70		std::error_code set_option(
71		int level, int optname,
72		void const* data, std::size_t size) noexcept override;
73		std::error_code get_option(
74		int level, int optname,
75		void* data, std::size_t* size) const noexcept override;
76
77	19	endpoint local_endpoint() const noexcept override
78		{
79	19	return local_endpoint_;
80		}
81	21	endpoint remote_endpoint() const noexcept override
82		{
83	21	return remote_endpoint_;
84		}
85		bool is_open() const noexcept
86		{
87		return fd_ >= 0;
88		}
89		void cancel() noexcept override;
90		void cancel_single_op(select_op& op) noexcept;
91		void close_socket() noexcept;
92	3071	void set_socket(int fd) noexcept
93		{
94	3071	fd_ = fd;
95	3071	}
96	6142	void set_endpoints(endpoint local, endpoint remote) noexcept
97		{
98	6142	local_endpoint_ = local;
99	6142	remote_endpoint_ = remote;
100	6142	}
101
102		select_connect_op conn_;
103		select_read_op rd_;
104		select_write_op wr_;
105
106		private:
107		select_socket_service& svc_;
108		int fd_ = -1;
109		endpoint local_endpoint_;
110		endpoint remote_endpoint_;
111		};
112
113		} // namespace boost::corosio::detail
114
115		#endif // BOOST_COROSIO_HAS_SELECT
116
117		#endif // BOOST_COROSIO_NATIVE_DETAIL_SELECT_SELECT_SOCKET_HPP
118