include/boost/corosio/native/detail/reactor/reactor_acceptor_service.hpp

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reactor_acceptor_service.hpp

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1			//
2			// Copyright (c) 2026 Michael Vandeberg
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_REACTOR_REACTOR_ACCEPTOR_SERVICE_HPP
11			#define BOOST_COROSIO_NATIVE_DETAIL_REACTOR_REACTOR_ACCEPTOR_SERVICE_HPP
12
13			#include <boost/corosio/io/io_object.hpp>
14			#include <boost/corosio/detail/scheduler_op.hpp>
15			#include <boost/corosio/native/detail/reactor/reactor_service_state.hpp>
16			#include <boost/capy/ex/execution_context.hpp>
17
18			#include <memory>
19			#include <mutex>
20
21			namespace boost::corosio::detail {
22
23			/* CRTP base for reactor-backed acceptor service implementations.
24
25			Provides the shared construct/destroy/shutdown/close/post/work
26			logic that is identical across all reactor backends and acceptor
27			types (TCP and local stream). Derived classes add only
28			protocol-specific open/bind/listen/stream_service.
29
30			@tparam Derived The concrete service type (CRTP).
31			@tparam ServiceBase The abstract service base
32			(tcp_acceptor_service or
33			local_stream_acceptor_service).
34			@tparam Scheduler The backend's scheduler type.
35			@tparam Impl The backend's acceptor impl type.
36			@tparam StreamService The concrete stream service type returned
37			by stream_service().
38			*/
39			template<
40			class Derived,
41			class ServiceBase,
42			class Scheduler,
43			class Impl,
44			class StreamService>
45			class reactor_acceptor_service : public ServiceBase
46			{
47			friend Derived;
48			using state_type = reactor_service_state<Scheduler, Impl>;
49
50			protected:
51			// NOLINTNEXTLINE(bugprone-crtp-constructor-accessibility)
52		3888x	explicit reactor_acceptor_service(capy::execution_context& ctx)
53		3888x	: ctx_(ctx)
54		3888x	, state_(
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57		3888x	{
58		3888x	}
59
60			public:
61		3888x	~reactor_acceptor_service() override = default;
62
63		3888x	void shutdown() override
64			{
65		3888x	std::lock_guard lock(state_->mutex_);
66
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68		✗	impl->close_socket();
69		3888x	}
70
71		2077x	io_object::implementation* construct() override
72			{
73		2077x	auto impl = std::make_shared<Impl>(static_cast<Derived&>(*this));
74		2077x	auto* raw = impl.get();
75
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78		2077x	state_->impl_list_.push_back(raw);
79
80		2077x	return raw;
81		2077x	}
82
83		2077x	void destroy(io_object::implementation* impl) override
84			{
85		2077x	auto* typed = static_cast<Impl*>(impl);
86		2077x	typed->close_socket();
87		2077x	std::lock_guard lock(state_->mutex_);
88		2077x	state_->impl_list_.remove(typed);
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90		2077x	}
91
92		4097x	void close(io_object::handle& h) override
93			{
94		4097x	static_cast<Impl*>(h.get())->close_socket();
95		4097x	}
96
97		3977x	Scheduler& scheduler() const noexcept
98			{
99		3977x	return state_->sched_;
100			}
101
102		90x	void post(scheduler_op* op)
103			{
104		90x	state_->sched_.post(op);
105		90x	}
106
107		7587x	void work_started() noexcept
108			{
109		7587x	state_->sched_.work_started();
110		7587x	}
111
112		52x	void work_finished() noexcept
113			{
114		52x	state_->sched_.work_finished();
115		52x	}
116
117		7548x	StreamService* stream_service() const noexcept
118			{
119		7548x	return stream_svc_;
120			}
121
122			protected:
123			capy::execution_context& ctx_;
124			std::unique_ptr<state_type> state_;
125		3888x	StreamService* stream_svc_ = nullptr;
126
127			private:
128			reactor_acceptor_service(reactor_acceptor_service const&) = delete;
129			reactor_acceptor_service& operator=(reactor_acceptor_service const&) = delete;
130			};
131
132			} // namespace boost::corosio::detail
133
134			#endif // BOOST_COROSIO_NATIVE_DETAIL_REACTOR_REACTOR_ACCEPTOR_SERVICE_HPP
135