src/corosio/src/io_context.cpp
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boost::corosio::epoll_t::construct(boost::capy::execution_context&, unsigned int)
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boost::corosio::select_t::construct(boost::capy::execution_context&, unsigned int)
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boost::corosio::(anonymous namespace)::pre_create_services(boost::capy::execution_context&, boost::corosio::io_context_options const&)
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boost::corosio::(anonymous namespace)::apply_scheduler_options(boost::corosio::detail::scheduler&, boost::corosio::io_context_options const&)
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boost::corosio::(anonymous namespace)::construct_default(boost::capy::execution_context&, unsigned int)
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boost::corosio::io_context::io_context()
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boost::corosio::io_context::io_context(unsigned int)
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boost::corosio::io_context::io_context(boost::corosio::io_context_options const&, unsigned int)
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boost::corosio::io_context::apply_options_pre_(boost::corosio::io_context_options const&)
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boost::corosio::io_context::apply_options_post_(boost::corosio::io_context_options const&)
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boost::corosio::io_context::~io_context()
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| Line | TLA | Hits | Source Code |
|---|---|---|---|
| 1 | // | ||
| 2 | // Copyright (c) 2026 Steve Gerbino | ||
| 3 | // Copyright (c) 2026 Michael Vandeberg | ||
| 4 | // | ||
| 5 | // Distributed under the Boost Software License, Version 1.0. (See accompanying | ||
| 6 | // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | ||
| 7 | // | ||
| 8 | // Official repository: https://github.com/cppalliance/corosio | ||
| 9 | // | ||
| 10 | |||
| 11 | #include <boost/corosio/io_context.hpp> | ||
| 12 | #include <boost/corosio/backend.hpp> | ||
| 13 | #include <boost/corosio/detail/thread_pool.hpp> | ||
| 14 | |||
| 15 | #include <stdexcept> | ||
| 16 | #include <thread> | ||
| 17 | |||
| 18 | #if BOOST_COROSIO_HAS_EPOLL | ||
| 19 | #include <boost/corosio/native/detail/epoll/epoll_scheduler.hpp> | ||
| 20 | #include <boost/corosio/native/detail/epoll/epoll_tcp_service.hpp> | ||
| 21 | #include <boost/corosio/native/detail/epoll/epoll_tcp_acceptor_service.hpp> | ||
| 22 | #include <boost/corosio/native/detail/epoll/epoll_udp_service.hpp> | ||
| 23 | #endif | ||
| 24 | |||
| 25 | #if BOOST_COROSIO_HAS_SELECT | ||
| 26 | #include <boost/corosio/native/detail/select/select_scheduler.hpp> | ||
| 27 | #include <boost/corosio/native/detail/select/select_tcp_service.hpp> | ||
| 28 | #include <boost/corosio/native/detail/select/select_tcp_acceptor_service.hpp> | ||
| 29 | #include <boost/corosio/native/detail/select/select_udp_service.hpp> | ||
| 30 | #endif | ||
| 31 | |||
| 32 | #if BOOST_COROSIO_HAS_KQUEUE | ||
| 33 | #include <boost/corosio/native/detail/kqueue/kqueue_scheduler.hpp> | ||
| 34 | #include <boost/corosio/native/detail/kqueue/kqueue_tcp_service.hpp> | ||
| 35 | #include <boost/corosio/native/detail/kqueue/kqueue_tcp_acceptor_service.hpp> | ||
| 36 | #include <boost/corosio/native/detail/kqueue/kqueue_udp_service.hpp> | ||
| 37 | #endif | ||
| 38 | |||
| 39 | #if BOOST_COROSIO_HAS_IOCP | ||
| 40 | #include <boost/corosio/native/detail/iocp/win_scheduler.hpp> | ||
| 41 | #include <boost/corosio/native/detail/iocp/win_tcp_acceptor_service.hpp> | ||
| 42 | #include <boost/corosio/native/detail/iocp/win_udp_service.hpp> | ||
| 43 | #include <boost/corosio/native/detail/iocp/win_signals.hpp> | ||
| 44 | #include <boost/corosio/native/detail/iocp/win_file_service.hpp> | ||
| 45 | #include <boost/corosio/native/detail/iocp/win_random_access_file_service.hpp> | ||
| 46 | #endif | ||
| 47 | |||
| 48 | namespace boost::corosio { | ||
| 49 | |||
| 50 | #if BOOST_COROSIO_HAS_EPOLL | ||
| 51 | detail::scheduler& | ||
| 52 | 322x | epoll_t::construct(capy::execution_context& ctx, unsigned concurrency_hint) | |
| 53 | { | ||
| 54 | 644x | auto& sched = ctx.make_service<detail::epoll_scheduler>( | |
| 55 | 322x | static_cast<int>(concurrency_hint)); | |
| 56 | |||
| 57 | 322x | ctx.make_service<detail::epoll_tcp_service>(); | |
| 58 | 322x | ctx.make_service<detail::epoll_tcp_acceptor_service>(); | |
| 59 | 322x | ctx.make_service<detail::epoll_udp_service>(); | |
| 60 | |||
| 61 | 322x | return sched; | |
| 62 | } | ||
| 63 | #endif | ||
| 64 | |||
| 65 | #if BOOST_COROSIO_HAS_SELECT | ||
| 66 | detail::scheduler& | ||
| 67 | 195x | select_t::construct(capy::execution_context& ctx, unsigned concurrency_hint) | |
| 68 | { | ||
| 69 | 390x | auto& sched = ctx.make_service<detail::select_scheduler>( | |
| 70 | 195x | static_cast<int>(concurrency_hint)); | |
| 71 | |||
| 72 | 195x | ctx.make_service<detail::select_tcp_service>(); | |
| 73 | 195x | ctx.make_service<detail::select_tcp_acceptor_service>(); | |
| 74 | 195x | ctx.make_service<detail::select_udp_service>(); | |
| 75 | |||
| 76 | 195x | return sched; | |
| 77 | } | ||
| 78 | #endif | ||
| 79 | |||
| 80 | #if BOOST_COROSIO_HAS_KQUEUE | ||
| 81 | detail::scheduler& | ||
| 82 | kqueue_t::construct(capy::execution_context& ctx, unsigned concurrency_hint) | ||
| 83 | { | ||
| 84 | auto& sched = ctx.make_service<detail::kqueue_scheduler>( | ||
| 85 | static_cast<int>(concurrency_hint)); | ||
| 86 | |||
| 87 | ctx.make_service<detail::kqueue_tcp_service>(); | ||
| 88 | ctx.make_service<detail::kqueue_tcp_acceptor_service>(); | ||
| 89 | ctx.make_service<detail::kqueue_udp_service>(); | ||
| 90 | |||
| 91 | return sched; | ||
| 92 | } | ||
| 93 | #endif | ||
| 94 | |||
| 95 | #if BOOST_COROSIO_HAS_IOCP | ||
| 96 | detail::scheduler& | ||
| 97 | iocp_t::construct(capy::execution_context& ctx, unsigned concurrency_hint) | ||
| 98 | { | ||
| 99 | auto& sched = ctx.make_service<detail::win_scheduler>( | ||
| 100 | static_cast<int>(concurrency_hint)); | ||
| 101 | |||
| 102 | auto& sockets = ctx.make_service<detail::win_tcp_service>(); | ||
| 103 | ctx.make_service<detail::win_tcp_acceptor_service>(sockets); | ||
| 104 | ctx.make_service<detail::win_udp_service>(); | ||
| 105 | ctx.make_service<detail::win_signals>(); | ||
| 106 | ctx.make_service<detail::win_file_service>(); | ||
| 107 | ctx.make_service<detail::win_random_access_file_service>(); | ||
| 108 | |||
| 109 | return sched; | ||
| 110 | } | ||
| 111 | #endif | ||
| 112 | |||
| 113 | namespace { | ||
| 114 | |||
| 115 | // Pre-create services that must exist before construct() runs. | ||
| 116 | void | ||
| 117 | ✗ | pre_create_services( | |
| 118 | capy::execution_context& ctx, | ||
| 119 | io_context_options const& opts) | ||
| 120 | { | ||
| 121 | #if BOOST_COROSIO_POSIX | ||
| 122 | ✗ | if (opts.thread_pool_size < 1) | |
| 123 | throw std::invalid_argument( | ||
| 124 | ✗ | "thread_pool_size must be at least 1"); | |
| 125 | // Pre-create the shared thread pool with the configured size. | ||
| 126 | // This must happen before construct() because the scheduler | ||
| 127 | // constructor creates file and resolver services that call | ||
| 128 | // get_or_create_pool(), which would create a 1-thread pool. | ||
| 129 | ✗ | if (opts.thread_pool_size != 1) | |
| 130 | ✗ | ctx.make_service<detail::thread_pool>(opts.thread_pool_size); | |
| 131 | #endif | ||
| 132 | |||
| 133 | (void)ctx; | ||
| 134 | (void)opts; | ||
| 135 | ✗ | } | |
| 136 | |||
| 137 | // Apply runtime tuning to the scheduler after construction. | ||
| 138 | void | ||
| 139 | ✗ | apply_scheduler_options( | |
| 140 | detail::scheduler& sched, | ||
| 141 | io_context_options const& opts) | ||
| 142 | { | ||
| 143 | #if BOOST_COROSIO_HAS_EPOLL || BOOST_COROSIO_HAS_KQUEUE || BOOST_COROSIO_HAS_SELECT | ||
| 144 | ✗ | auto& reactor = | |
| 145 | static_cast<detail::reactor_scheduler_base&>(sched); | ||
| 146 | ✗ | reactor.configure_reactor( | |
| 147 | ✗ | opts.max_events_per_poll, | |
| 148 | ✗ | opts.inline_budget_initial, | |
| 149 | ✗ | opts.inline_budget_max, | |
| 150 | ✗ | opts.unassisted_budget); | |
| 151 | ✗ | if (opts.single_threaded) | |
| 152 | ✗ | reactor.configure_single_threaded(true); | |
| 153 | #endif | ||
| 154 | |||
| 155 | #if BOOST_COROSIO_HAS_IOCP | ||
| 156 | static_cast<detail::win_scheduler&>(sched).configure_iocp( | ||
| 157 | opts.gqcs_timeout_ms); | ||
| 158 | #endif | ||
| 159 | |||
| 160 | (void)sched; | ||
| 161 | (void)opts; | ||
| 162 | ✗ | } | |
| 163 | |||
| 164 | detail::scheduler& | ||
| 165 | 127x | construct_default(capy::execution_context& ctx, unsigned concurrency_hint) | |
| 166 | { | ||
| 167 | #if BOOST_COROSIO_HAS_IOCP | ||
| 168 | return iocp_t::construct(ctx, concurrency_hint); | ||
| 169 | #elif BOOST_COROSIO_HAS_EPOLL | ||
| 170 | 127x | return epoll_t::construct(ctx, concurrency_hint); | |
| 171 | #elif BOOST_COROSIO_HAS_KQUEUE | ||
| 172 | return kqueue_t::construct(ctx, concurrency_hint); | ||
| 173 | #elif BOOST_COROSIO_HAS_SELECT | ||
| 174 | return select_t::construct(ctx, concurrency_hint); | ||
| 175 | #endif | ||
| 176 | } | ||
| 177 | |||
| 178 | } // anonymous namespace | ||
| 179 | |||
| 180 | 126x | io_context::io_context() : io_context(std::thread::hardware_concurrency()) {} | |
| 181 | |||
| 182 | 127x | io_context::io_context(unsigned concurrency_hint) | |
| 183 | : capy::execution_context(this) | ||
| 184 | 127x | , sched_(&construct_default(*this, concurrency_hint)) | |
| 185 | { | ||
| 186 | 127x | } | |
| 187 | |||
| 188 | ✗ | io_context::io_context( | |
| 189 | io_context_options const& opts, | ||
| 190 | ✗ | unsigned concurrency_hint) | |
| 191 | : capy::execution_context(this) | ||
| 192 | ✗ | , sched_(nullptr) | |
| 193 | { | ||
| 194 | ✗ | pre_create_services(*this, opts); | |
| 195 | ✗ | sched_ = &construct_default(*this, concurrency_hint); | |
| 196 | ✗ | apply_scheduler_options(*sched_, opts); | |
| 197 | ✗ | } | |
| 198 | |||
| 199 | void | ||
| 200 | ✗ | io_context::apply_options_pre_(io_context_options const& opts) | |
| 201 | { | ||
| 202 | ✗ | pre_create_services(*this, opts); | |
| 203 | ✗ | } | |
| 204 | |||
| 205 | void | ||
| 206 | ✗ | io_context::apply_options_post_(io_context_options const& opts) | |
| 207 | { | ||
| 208 | ✗ | apply_scheduler_options(*sched_, opts); | |
| 209 | ✗ | } | |
| 210 | |||
| 211 | 517x | io_context::~io_context() | |
| 212 | { | ||
| 213 | 517x | shutdown(); | |
| 214 | 517x | destroy(); | |
| 215 | 517x | } | |
| 216 | |||
| 217 | } // namespace boost::corosio | ||
| 218 |