src/corosio/src/detail/select/acceptors.cpp
62.2% Lines (156/251)
88.9% Functions (16/18)
43.9% Branches (65/148)
src/corosio/src/detail/select/acceptors.cpp
| Line | Branch | Hits | Source Code |
|---|---|---|---|
| 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 | #include <boost/corosio/detail/platform.hpp> | ||
| 11 | |||
| 12 | #if BOOST_COROSIO_HAS_SELECT | ||
| 13 | |||
| 14 | #include "src/detail/select/acceptors.hpp" | ||
| 15 | #include "src/detail/select/sockets.hpp" | ||
| 16 | #include "src/detail/endpoint_convert.hpp" | ||
| 17 | #include "src/detail/dispatch_coro.hpp" | ||
| 18 | #include "src/detail/make_err.hpp" | ||
| 19 | |||
| 20 | #include <errno.h> | ||
| 21 | #include <fcntl.h> | ||
| 22 | #include <netinet/in.h> | ||
| 23 | #include <sys/socket.h> | ||
| 24 | #include <unistd.h> | ||
| 25 | |||
| 26 | namespace boost::corosio::detail { | ||
| 27 | |||
| 28 | void | ||
| 29 | ✗ | select_accept_op:: | |
| 30 | cancel() noexcept | ||
| 31 | { | ||
| 32 | ✗ | if (acceptor_impl_) | |
| 33 | ✗ | acceptor_impl_->cancel_single_op(*this); | |
| 34 | else | ||
| 35 | ✗ | request_cancel(); | |
| 36 | ✗ | } | |
| 37 | |||
| 38 | void | ||
| 39 | 3437 | select_accept_op:: | |
| 40 | operator()() | ||
| 41 | { | ||
| 42 | 3437 | stop_cb.reset(); | |
| 43 | |||
| 44 |
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3437 | bool success = (errn == 0 && !cancelled.load(std::memory_order_acquire)); |
| 45 | |||
| 46 |
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3437 | if (ec_out) |
| 47 | { | ||
| 48 |
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3437 | if (cancelled.load(std::memory_order_acquire)) |
| 49 | 3 | *ec_out = capy::error::canceled; | |
| 50 |
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3434 | else if (errn != 0) |
| 51 | ✗ | *ec_out = make_err(errn); | |
| 52 | else | ||
| 53 | 3434 | *ec_out = {}; | |
| 54 | } | ||
| 55 | |||
| 56 |
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3437 | if (success && accepted_fd >= 0) |
| 57 | { | ||
| 58 |
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3434 | if (acceptor_impl_) |
| 59 | { | ||
| 60 | 3434 | auto* socket_svc = static_cast<select_acceptor_impl*>(acceptor_impl_) | |
| 61 | 3434 | ->service().socket_service(); | |
| 62 |
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3434 | if (socket_svc) |
| 63 | { | ||
| 64 |
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3434 | auto& impl = static_cast<select_socket_impl&>(*socket_svc->construct()); |
| 65 | 3434 | impl.set_socket(accepted_fd); | |
| 66 | |||
| 67 | 3434 | sockaddr_in local_addr{}; | |
| 68 | 3434 | socklen_t local_len = sizeof(local_addr); | |
| 69 | 3434 | sockaddr_in remote_addr{}; | |
| 70 | 3434 | socklen_t remote_len = sizeof(remote_addr); | |
| 71 | |||
| 72 | 3434 | endpoint local_ep, remote_ep; | |
| 73 |
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3434 | if (::getsockname(accepted_fd, reinterpret_cast<sockaddr*>(&local_addr), &local_len) == 0) |
| 74 | 3434 | local_ep = from_sockaddr_in(local_addr); | |
| 75 |
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3434 | if (::getpeername(accepted_fd, reinterpret_cast<sockaddr*>(&remote_addr), &remote_len) == 0) |
| 76 | 3434 | remote_ep = from_sockaddr_in(remote_addr); | |
| 77 | |||
| 78 | 3434 | impl.set_endpoints(local_ep, remote_ep); | |
| 79 | |||
| 80 |
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3434 | if (impl_out) |
| 81 | 3434 | *impl_out = &impl; | |
| 82 | |||
| 83 | 3434 | accepted_fd = -1; | |
| 84 | } | ||
| 85 | else | ||
| 86 | { | ||
| 87 | ✗ | if (ec_out && !*ec_out) | |
| 88 | ✗ | *ec_out = make_err(ENOENT); | |
| 89 | ✗ | ::close(accepted_fd); | |
| 90 | ✗ | accepted_fd = -1; | |
| 91 | ✗ | if (impl_out) | |
| 92 | ✗ | *impl_out = nullptr; | |
| 93 | } | ||
| 94 | } | ||
| 95 | else | ||
| 96 | { | ||
| 97 | ✗ | ::close(accepted_fd); | |
| 98 | ✗ | accepted_fd = -1; | |
| 99 | ✗ | if (impl_out) | |
| 100 | ✗ | *impl_out = nullptr; | |
| 101 | } | ||
| 102 | 3434 | } | |
| 103 | else | ||
| 104 | { | ||
| 105 |
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3 | if (accepted_fd >= 0) |
| 106 | { | ||
| 107 | ✗ | ::close(accepted_fd); | |
| 108 | ✗ | accepted_fd = -1; | |
| 109 | } | ||
| 110 | |||
| 111 |
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3 | if (peer_impl) |
| 112 | { | ||
| 113 | ✗ | auto* socket_svc_cleanup = static_cast<select_acceptor_impl*>(acceptor_impl_) | |
| 114 | ✗ | ->service().socket_service(); | |
| 115 | ✗ | if (socket_svc_cleanup) | |
| 116 | ✗ | socket_svc_cleanup->destroy(peer_impl); | |
| 117 | ✗ | peer_impl = nullptr; | |
| 118 | } | ||
| 119 | |||
| 120 |
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3 | if (impl_out) |
| 121 | 3 | *impl_out = nullptr; | |
| 122 | } | ||
| 123 | |||
| 124 | // Move to stack before destroying the frame | ||
| 125 | 3437 | capy::executor_ref saved_ex( std::move( ex ) ); | |
| 126 | 3437 | std::coroutine_handle<> saved_h( std::move( h ) ); | |
| 127 | 3437 | impl_ptr.reset(); | |
| 128 |
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3437 | dispatch_coro(saved_ex, saved_h).resume(); |
| 129 | 3437 | } | |
| 130 | |||
| 131 | 44 | select_acceptor_impl:: | |
| 132 | 44 | select_acceptor_impl(select_acceptor_service& svc) noexcept | |
| 133 | 44 | : svc_(svc) | |
| 134 | { | ||
| 135 | 44 | } | |
| 136 | |||
| 137 | std::coroutine_handle<> | ||
| 138 | 3437 | select_acceptor_impl:: | |
| 139 | accept( | ||
| 140 | std::coroutine_handle<> h, | ||
| 141 | capy::executor_ref ex, | ||
| 142 | std::stop_token token, | ||
| 143 | std::error_code* ec, | ||
| 144 | io_object::implementation** impl_out) | ||
| 145 | { | ||
| 146 | 3437 | auto& op = acc_; | |
| 147 | 3437 | op.reset(); | |
| 148 | 3437 | op.h = h; | |
| 149 | 3437 | op.ex = ex; | |
| 150 | 3437 | op.ec_out = ec; | |
| 151 | 3437 | op.impl_out = impl_out; | |
| 152 | 3437 | op.fd = fd_; | |
| 153 | 3437 | op.start(token, this); | |
| 154 | |||
| 155 | 3437 | sockaddr_in addr{}; | |
| 156 | 3437 | socklen_t addrlen = sizeof(addr); | |
| 157 |
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3437 | int accepted = ::accept(fd_, reinterpret_cast<sockaddr*>(&addr), &addrlen); |
| 158 | |||
| 159 |
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3437 | if (accepted >= 0) |
| 160 | { | ||
| 161 | // Reject fds that exceed select()'s FD_SETSIZE limit. | ||
| 162 | // Better to fail now than during later async operations. | ||
| 163 |
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2 | if (accepted >= FD_SETSIZE) |
| 164 | { | ||
| 165 | ✗ | ::close(accepted); | |
| 166 | ✗ | op.accepted_fd = -1; | |
| 167 | ✗ | op.complete(EINVAL, 0); | |
| 168 | ✗ | op.impl_ptr = shared_from_this(); | |
| 169 | ✗ | svc_.post(&op); | |
| 170 | // completion is always posted to scheduler queue, never inline. | ||
| 171 | ✗ | return std::noop_coroutine(); | |
| 172 | } | ||
| 173 | |||
| 174 | // Set non-blocking and close-on-exec flags. | ||
| 175 | // A non-blocking socket is essential for the async reactor; | ||
| 176 | // if we can't configure it, fail rather than risk blocking. | ||
| 177 |
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2 | int flags = ::fcntl(accepted, F_GETFL, 0); |
| 178 |
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2 | if (flags == -1) |
| 179 | { | ||
| 180 | ✗ | int err = errno; | |
| 181 | ✗ | ::close(accepted); | |
| 182 | ✗ | op.accepted_fd = -1; | |
| 183 | ✗ | op.complete(err, 0); | |
| 184 | ✗ | op.impl_ptr = shared_from_this(); | |
| 185 | ✗ | svc_.post(&op); | |
| 186 | // completion is always posted to scheduler queue, never inline. | ||
| 187 | ✗ | return std::noop_coroutine(); | |
| 188 | } | ||
| 189 | |||
| 190 |
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2 | if (::fcntl(accepted, F_SETFL, flags | O_NONBLOCK) == -1) |
| 191 | { | ||
| 192 | ✗ | int err = errno; | |
| 193 | ✗ | ::close(accepted); | |
| 194 | ✗ | op.accepted_fd = -1; | |
| 195 | ✗ | op.complete(err, 0); | |
| 196 | ✗ | op.impl_ptr = shared_from_this(); | |
| 197 | ✗ | svc_.post(&op); | |
| 198 | // completion is always posted to scheduler queue, never inline. | ||
| 199 | ✗ | return std::noop_coroutine(); | |
| 200 | } | ||
| 201 | |||
| 202 |
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2 | if (::fcntl(accepted, F_SETFD, FD_CLOEXEC) == -1) |
| 203 | { | ||
| 204 | ✗ | int err = errno; | |
| 205 | ✗ | ::close(accepted); | |
| 206 | ✗ | op.accepted_fd = -1; | |
| 207 | ✗ | op.complete(err, 0); | |
| 208 | ✗ | op.impl_ptr = shared_from_this(); | |
| 209 | ✗ | svc_.post(&op); | |
| 210 | // completion is always posted to scheduler queue, never inline. | ||
| 211 | ✗ | return std::noop_coroutine(); | |
| 212 | } | ||
| 213 | |||
| 214 | 2 | op.accepted_fd = accepted; | |
| 215 | 2 | op.complete(0, 0); | |
| 216 |
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2 | op.impl_ptr = shared_from_this(); |
| 217 |
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2 | svc_.post(&op); |
| 218 | // completion is always posted to scheduler queue, never inline. | ||
| 219 | 2 | return std::noop_coroutine(); | |
| 220 | } | ||
| 221 | |||
| 222 |
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3435 | if (errno == EAGAIN || errno == EWOULDBLOCK) |
| 223 | { | ||
| 224 | 3435 | svc_.work_started(); | |
| 225 |
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3435 | op.impl_ptr = shared_from_this(); |
| 226 | |||
| 227 | // Set registering BEFORE register_fd to close the race window where | ||
| 228 | // reactor sees an event before we set registered. | ||
| 229 | 3435 | op.registered.store(select_registration_state::registering, std::memory_order_release); | |
| 230 |
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3435 | svc_.scheduler().register_fd(fd_, &op, select_scheduler::event_read); |
| 231 | |||
| 232 | // Transition to registered. If this fails, reactor or cancel already | ||
| 233 | // claimed the op (state is now unregistered), so we're done. However, | ||
| 234 | // we must still deregister the fd because cancel's deregister_fd may | ||
| 235 | // have run before our register_fd, leaving the fd orphaned. | ||
| 236 | 3435 | auto expected = select_registration_state::registering; | |
| 237 |
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3435 | if (!op.registered.compare_exchange_strong( |
| 238 | expected, select_registration_state::registered, std::memory_order_acq_rel)) | ||
| 239 | { | ||
| 240 | ✗ | svc_.scheduler().deregister_fd(fd_, select_scheduler::event_read); | |
| 241 | // completion is always posted to scheduler queue, never inline. | ||
| 242 | ✗ | return std::noop_coroutine(); | |
| 243 | } | ||
| 244 | |||
| 245 | // If cancelled was set before we registered, handle it now. | ||
| 246 |
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3435 | if (op.cancelled.load(std::memory_order_acquire)) |
| 247 | { | ||
| 248 | ✗ | auto prev = op.registered.exchange( | |
| 249 | select_registration_state::unregistered, std::memory_order_acq_rel); | ||
| 250 | ✗ | if (prev != select_registration_state::unregistered) | |
| 251 | { | ||
| 252 | ✗ | svc_.scheduler().deregister_fd(fd_, select_scheduler::event_read); | |
| 253 | ✗ | op.impl_ptr = shared_from_this(); | |
| 254 | ✗ | svc_.post(&op); | |
| 255 | ✗ | svc_.work_finished(); | |
| 256 | } | ||
| 257 | } | ||
| 258 | // completion is always posted to scheduler queue, never inline. | ||
| 259 | 3435 | return std::noop_coroutine(); | |
| 260 | } | ||
| 261 | |||
| 262 | ✗ | op.complete(errno, 0); | |
| 263 | ✗ | op.impl_ptr = shared_from_this(); | |
| 264 | ✗ | svc_.post(&op); | |
| 265 | // completion is always posted to scheduler queue, never inline. | ||
| 266 | ✗ | return std::noop_coroutine(); | |
| 267 | } | ||
| 268 | |||
| 269 | void | ||
| 270 | 173 | select_acceptor_impl:: | |
| 271 | cancel() noexcept | ||
| 272 | { | ||
| 273 | 173 | std::shared_ptr<select_acceptor_impl> self; | |
| 274 | try { | ||
| 275 |
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173 | self = shared_from_this(); |
| 276 | ✗ | } catch (const std::bad_weak_ptr&) { | |
| 277 | ✗ | return; | |
| 278 | ✗ | } | |
| 279 | |||
| 280 | 173 | auto prev = acc_.registered.exchange( | |
| 281 | select_registration_state::unregistered, std::memory_order_acq_rel); | ||
| 282 | 173 | acc_.request_cancel(); | |
| 283 | |||
| 284 |
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173 | if (prev != select_registration_state::unregistered) |
| 285 | { | ||
| 286 | 3 | svc_.scheduler().deregister_fd(fd_, select_scheduler::event_read); | |
| 287 | 3 | acc_.impl_ptr = self; | |
| 288 | 3 | svc_.post(&acc_); | |
| 289 | 3 | svc_.work_finished(); | |
| 290 | } | ||
| 291 | 173 | } | |
| 292 | |||
| 293 | void | ||
| 294 | ✗ | select_acceptor_impl:: | |
| 295 | cancel_single_op(select_op& op) noexcept | ||
| 296 | { | ||
| 297 | // Called from stop_token callback to cancel a specific pending operation. | ||
| 298 | ✗ | auto prev = op.registered.exchange( | |
| 299 | select_registration_state::unregistered, std::memory_order_acq_rel); | ||
| 300 | ✗ | op.request_cancel(); | |
| 301 | |||
| 302 | ✗ | if (prev != select_registration_state::unregistered) | |
| 303 | { | ||
| 304 | ✗ | svc_.scheduler().deregister_fd(fd_, select_scheduler::event_read); | |
| 305 | |||
| 306 | // Keep impl alive until op completes | ||
| 307 | try { | ||
| 308 | ✗ | op.impl_ptr = shared_from_this(); | |
| 309 | ✗ | } catch (const std::bad_weak_ptr&) { | |
| 310 | // Impl is being destroyed, op will be orphaned but that's ok | ||
| 311 | ✗ | } | |
| 312 | |||
| 313 | ✗ | svc_.post(&op); | |
| 314 | ✗ | svc_.work_finished(); | |
| 315 | } | ||
| 316 | ✗ | } | |
| 317 | |||
| 318 | void | ||
| 319 | 172 | select_acceptor_impl:: | |
| 320 | close_socket() noexcept | ||
| 321 | { | ||
| 322 | 172 | cancel(); | |
| 323 | |||
| 324 |
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172 | if (fd_ >= 0) |
| 325 | { | ||
| 326 | // Unconditionally remove from registered_fds_ to handle edge cases | ||
| 327 | 42 | svc_.scheduler().deregister_fd(fd_, select_scheduler::event_read); | |
| 328 | 42 | ::close(fd_); | |
| 329 | 42 | fd_ = -1; | |
| 330 | } | ||
| 331 | |||
| 332 | // Clear cached endpoint | ||
| 333 | 172 | local_endpoint_ = endpoint{}; | |
| 334 | 172 | } | |
| 335 | |||
| 336 | 133 | select_acceptor_service:: | |
| 337 | 133 | select_acceptor_service(capy::execution_context& ctx) | |
| 338 | 133 | : ctx_(ctx) | |
| 339 |
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133 | , state_(std::make_unique<select_acceptor_state>(ctx.use_service<select_scheduler>())) |
| 340 | { | ||
| 341 | 133 | } | |
| 342 | |||
| 343 | 266 | select_acceptor_service:: | |
| 344 | 133 | ~select_acceptor_service() | |
| 345 | { | ||
| 346 | 266 | } | |
| 347 | |||
| 348 | void | ||
| 349 | 133 | select_acceptor_service:: | |
| 350 | shutdown() | ||
| 351 | { | ||
| 352 |
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133 | std::lock_guard lock(state_->mutex_); |
| 353 | |||
| 354 |
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133 | while (auto* impl = state_->acceptor_list_.pop_front()) |
| 355 | ✗ | impl->close_socket(); | |
| 356 | |||
| 357 | // Don't clear acceptor_ptrs_ here — same rationale as | ||
| 358 | // select_socket_service::shutdown(). Let ~state_ release ptrs | ||
| 359 | // after scheduler shutdown has drained all queued ops. | ||
| 360 | 133 | } | |
| 361 | |||
| 362 | io_object::implementation* | ||
| 363 | 44 | select_acceptor_service:: | |
| 364 | construct() | ||
| 365 | { | ||
| 366 |
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44 | auto impl = std::make_shared<select_acceptor_impl>(*this); |
| 367 | 44 | auto* raw = impl.get(); | |
| 368 | |||
| 369 |
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44 | std::lock_guard lock(state_->mutex_); |
| 370 | 44 | state_->acceptor_list_.push_back(raw); | |
| 371 |
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44 | state_->acceptor_ptrs_.emplace(raw, std::move(impl)); |
| 372 | |||
| 373 | 44 | return raw; | |
| 374 | 44 | } | |
| 375 | |||
| 376 | void | ||
| 377 | 44 | select_acceptor_service:: | |
| 378 | destroy(io_object::implementation* impl) | ||
| 379 | { | ||
| 380 | 44 | auto* select_impl = static_cast<select_acceptor_impl*>(impl); | |
| 381 | 44 | select_impl->close_socket(); | |
| 382 |
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44 | std::lock_guard lock(state_->mutex_); |
| 383 | 44 | state_->acceptor_list_.remove(select_impl); | |
| 384 |
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44 | state_->acceptor_ptrs_.erase(select_impl); |
| 385 | 44 | } | |
| 386 | |||
| 387 | void | ||
| 388 | 86 | select_acceptor_service:: | |
| 389 | close(io_object::handle& h) | ||
| 390 | { | ||
| 391 | 86 | static_cast<select_acceptor_impl*>(h.get())->close_socket(); | |
| 392 | 86 | } | |
| 393 | |||
| 394 | std::error_code | ||
| 395 | 42 | select_acceptor_service:: | |
| 396 | open_acceptor( | ||
| 397 | tcp_acceptor::implementation& impl, | ||
| 398 | endpoint ep, | ||
| 399 | int backlog) | ||
| 400 | { | ||
| 401 | 42 | auto* select_impl = static_cast<select_acceptor_impl*>(&impl); | |
| 402 | 42 | select_impl->close_socket(); | |
| 403 | |||
| 404 | 42 | int fd = ::socket(AF_INET, SOCK_STREAM, 0); | |
| 405 |
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42 | if (fd < 0) |
| 406 | ✗ | return make_err(errno); | |
| 407 | |||
| 408 | // Set non-blocking and close-on-exec | ||
| 409 |
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42 | int flags = ::fcntl(fd, F_GETFL, 0); |
| 410 |
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42 | if (flags == -1) |
| 411 | { | ||
| 412 | ✗ | int errn = errno; | |
| 413 | ✗ | ::close(fd); | |
| 414 | ✗ | return make_err(errn); | |
| 415 | } | ||
| 416 |
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42 | if (::fcntl(fd, F_SETFL, flags | O_NONBLOCK) == -1) |
| 417 | { | ||
| 418 | ✗ | int errn = errno; | |
| 419 | ✗ | ::close(fd); | |
| 420 | ✗ | return make_err(errn); | |
| 421 | } | ||
| 422 |
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42 | if (::fcntl(fd, F_SETFD, FD_CLOEXEC) == -1) |
| 423 | { | ||
| 424 | ✗ | int errn = errno; | |
| 425 | ✗ | ::close(fd); | |
| 426 | ✗ | return make_err(errn); | |
| 427 | } | ||
| 428 | |||
| 429 | // Check fd is within select() limits | ||
| 430 |
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42 | if (fd >= FD_SETSIZE) |
| 431 | { | ||
| 432 | ✗ | ::close(fd); | |
| 433 | ✗ | return make_err(EMFILE); | |
| 434 | } | ||
| 435 | |||
| 436 | 42 | int reuse = 1; | |
| 437 | 42 | ::setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &reuse, sizeof(reuse)); | |
| 438 | |||
| 439 | 42 | sockaddr_in addr = detail::to_sockaddr_in(ep); | |
| 440 |
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42 | if (::bind(fd, reinterpret_cast<sockaddr*>(&addr), sizeof(addr)) < 0) |
| 441 | { | ||
| 442 | ✗ | int errn = errno; | |
| 443 | ✗ | ::close(fd); | |
| 444 | ✗ | return make_err(errn); | |
| 445 | } | ||
| 446 | |||
| 447 |
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42 | if (::listen(fd, backlog) < 0) |
| 448 | { | ||
| 449 | ✗ | int errn = errno; | |
| 450 | ✗ | ::close(fd); | |
| 451 | ✗ | return make_err(errn); | |
| 452 | } | ||
| 453 | |||
| 454 | 42 | select_impl->fd_ = fd; | |
| 455 | |||
| 456 | // Cache the local endpoint (queries OS for ephemeral port if port was 0) | ||
| 457 | 42 | sockaddr_in local_addr{}; | |
| 458 | 42 | socklen_t local_len = sizeof(local_addr); | |
| 459 |
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42 | if (::getsockname(fd, reinterpret_cast<sockaddr*>(&local_addr), &local_len) == 0) |
| 460 | 42 | select_impl->set_local_endpoint(detail::from_sockaddr_in(local_addr)); | |
| 461 | |||
| 462 | 42 | return {}; | |
| 463 | } | ||
| 464 | |||
| 465 | void | ||
| 466 | 5 | select_acceptor_service:: | |
| 467 | post(select_op* op) | ||
| 468 | { | ||
| 469 | 5 | state_->sched_.post(op); | |
| 470 | 5 | } | |
| 471 | |||
| 472 | void | ||
| 473 | 3435 | select_acceptor_service:: | |
| 474 | work_started() noexcept | ||
| 475 | { | ||
| 476 | 3435 | state_->sched_.work_started(); | |
| 477 | 3435 | } | |
| 478 | |||
| 479 | void | ||
| 480 | 3 | select_acceptor_service:: | |
| 481 | work_finished() noexcept | ||
| 482 | { | ||
| 483 | 3 | state_->sched_.work_finished(); | |
| 484 | 3 | } | |
| 485 | |||
| 486 | select_socket_service* | ||
| 487 | 3434 | select_acceptor_service:: | |
| 488 | socket_service() const noexcept | ||
| 489 | { | ||
| 490 | 3434 | auto* svc = ctx_.find_service<detail::socket_service>(); | |
| 491 |
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3434 | return svc ? dynamic_cast<select_socket_service*>(svc) : nullptr; |
| 492 | } | ||
| 493 | |||
| 494 | } // namespace boost::corosio::detail | ||
| 495 | |||
| 496 | #endif // BOOST_COROSIO_HAS_SELECT | ||
| 497 |