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	1170x	explicit reactor_acceptor_service(capy::execution_context& ctx)
51	1170x	: ctx_(ctx)
52	1170x	, state_(
53		std::make_unique<state_type>(
54	1170x	ctx.template use_service<Scheduler>()))
55		{
56	1170x	}
57
58		public:
59	1170x	~reactor_acceptor_service() override = default;
60
61	1170x	void shutdown() override
62		{
63	1170x	std::lock_guard lock(state_->mutex_);
64
65	1170x	while (auto* impl = state_->impl_list_.pop_front())
66	✗	impl->close_socket();
67	1170x	}
68
69	161x	io_object::implementation* construct() override
70		{
71	161x	auto impl = std::make_shared<Impl>(static_cast<Derived&>(*this));
72	161x	auto* raw = impl.get();
73
74	161x	std::lock_guard lock(state_->mutex_);
75	161x	state_->impl_ptrs_.emplace(raw, std::move(impl));
76	161x	state_->impl_list_.push_back(raw);
77
78	161x	return raw;
79	161x	}
80
81	161x	void destroy(io_object::implementation* impl) override
82		{
83	161x	auto* typed = static_cast<Impl*>(impl);
84	161x	typed->close_socket();
85	161x	std::lock_guard lock(state_->mutex_);
86	161x	state_->impl_list_.remove(typed);
87	161x	state_->impl_ptrs_.erase(typed);
88	161x	}
89
90	317x	void close(io_object::handle& h) override
91		{
92	317x	static_cast<Impl*>(h.get())->close_socket();
93	317x	}
94
95	282x	Scheduler& scheduler() const noexcept
96		{
97	282x	return state_->sched_;
98		}
99
100	18x	void post(scheduler_op* op)
101		{
102	18x	state_->sched_.post(op);
103	18x	}
104
105	7234x	void work_started() noexcept
106		{
107	7234x	state_->sched_.work_started();
108	7234x	}
109
110	12x	void work_finished() noexcept
111		{
112	12x	state_->sched_.work_finished();
113	12x	}
114
115	7228x	StreamService* stream_service() const noexcept
116		{
117	7228x	return stream_svc_;
118		}
119
120		protected:
121		capy::execution_context& ctx_;
122		std::unique_ptr<state_type> state_;
123		StreamService* stream_svc_ = nullptr;
124
125		private:
126		reactor_acceptor_service(reactor_acceptor_service const&) = delete;
127		reactor_acceptor_service& operator=(reactor_acceptor_service const&) = delete;
128		};
129
130		} // namespace boost::corosio::detail
131
132		#endif // BOOST_COROSIO_NATIVE_DETAIL_REACTOR_REACTOR_ACCEPTOR_SERVICE_HPP
133