2 // detail/reactive_socket_service_base.ipp
3 // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
5 // Copyright (c) 2003-2019 Christopher M. Kohlhoff (chris at kohlhoff dot com)
7 // Distributed under the Boost Software License, Version 1.0. (See accompanying
8 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
11 #ifndef BOOST_ASIO_DETAIL_IMPL_REACTIVE_SOCKET_SERVICE_BASE_IPP
12 #define BOOST_ASIO_DETAIL_IMPL_REACTIVE_SOCKET_SERVICE_BASE_IPP
14 #if defined(_MSC_VER) && (_MSC_VER >= 1200)
16 #endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
18 #include <boost/asio/detail/config.hpp>
20 #if !defined(BOOST_ASIO_HAS_IOCP) \
21 && !defined(BOOST_ASIO_WINDOWS_RUNTIME)
23 #include <boost/asio/detail/reactive_socket_service_base.hpp>
25 #include <boost/asio/detail/push_options.hpp>
31 reactive_socket_service_base::reactive_socket_service_base(
32 execution_context& context)
33 : reactor_(use_service<reactor>(context))
38 void reactive_socket_service_base::base_shutdown()
42 void reactive_socket_service_base::construct(
43 reactive_socket_service_base::base_implementation_type& impl)
45 impl.socket_ = invalid_socket;
49 void reactive_socket_service_base::base_move_construct(
50 reactive_socket_service_base::base_implementation_type& impl,
51 reactive_socket_service_base::base_implementation_type& other_impl)
53 impl.socket_ = other_impl.socket_;
54 other_impl.socket_ = invalid_socket;
56 impl.state_ = other_impl.state_;
57 other_impl.state_ = 0;
59 reactor_.move_descriptor(impl.socket_,
60 impl.reactor_data_, other_impl.reactor_data_);
63 void reactive_socket_service_base::base_move_assign(
64 reactive_socket_service_base::base_implementation_type& impl,
65 reactive_socket_service_base& other_service,
66 reactive_socket_service_base::base_implementation_type& other_impl)
70 impl.socket_ = other_impl.socket_;
71 other_impl.socket_ = invalid_socket;
73 impl.state_ = other_impl.state_;
74 other_impl.state_ = 0;
76 other_service.reactor_.move_descriptor(impl.socket_,
77 impl.reactor_data_, other_impl.reactor_data_);
80 void reactive_socket_service_base::destroy(
81 reactive_socket_service_base::base_implementation_type& impl)
83 if (impl.socket_ != invalid_socket)
85 BOOST_ASIO_HANDLER_OPERATION((reactor_.context(),
86 "socket", &impl, impl.socket_, "close"));
88 reactor_.deregister_descriptor(impl.socket_, impl.reactor_data_,
89 (impl.state_ & socket_ops::possible_dup) == 0);
91 boost::system::error_code ignored_ec;
92 socket_ops::close(impl.socket_, impl.state_, true, ignored_ec);
94 reactor_.cleanup_descriptor_data(impl.reactor_data_);
98 boost::system::error_code reactive_socket_service_base::close(
99 reactive_socket_service_base::base_implementation_type& impl,
100 boost::system::error_code& ec)
104 BOOST_ASIO_HANDLER_OPERATION((reactor_.context(),
105 "socket", &impl, impl.socket_, "close"));
107 reactor_.deregister_descriptor(impl.socket_, impl.reactor_data_,
108 (impl.state_ & socket_ops::possible_dup) == 0);
110 socket_ops::close(impl.socket_, impl.state_, false, ec);
112 reactor_.cleanup_descriptor_data(impl.reactor_data_);
116 ec = boost::system::error_code();
119 // The descriptor is closed by the OS even if close() returns an error.
121 // (Actually, POSIX says the state of the descriptor is unspecified. On
122 // Linux the descriptor is apparently closed anyway; e.g. see
123 // http://lkml.org/lkml/2005/9/10/129
124 // We'll just have to assume that other OSes follow the same behaviour. The
125 // known exception is when Windows's closesocket() function fails with
126 // WSAEWOULDBLOCK, but this case is handled inside socket_ops::close().
132 socket_type reactive_socket_service_base::release(
133 reactive_socket_service_base::base_implementation_type& impl,
134 boost::system::error_code& ec)
138 ec = boost::asio::error::bad_descriptor;
139 return invalid_socket;
142 BOOST_ASIO_HANDLER_OPERATION((reactor_.context(),
143 "socket", &impl, impl.socket_, "release"));
145 reactor_.deregister_descriptor(impl.socket_, impl.reactor_data_, false);
146 reactor_.cleanup_descriptor_data(impl.reactor_data_);
147 socket_type sock = impl.socket_;
149 ec = boost::system::error_code();
153 boost::system::error_code reactive_socket_service_base::cancel(
154 reactive_socket_service_base::base_implementation_type& impl,
155 boost::system::error_code& ec)
159 ec = boost::asio::error::bad_descriptor;
163 BOOST_ASIO_HANDLER_OPERATION((reactor_.context(),
164 "socket", &impl, impl.socket_, "cancel"));
166 reactor_.cancel_ops(impl.socket_, impl.reactor_data_);
167 ec = boost::system::error_code();
171 boost::system::error_code reactive_socket_service_base::do_open(
172 reactive_socket_service_base::base_implementation_type& impl,
173 int af, int type, int protocol, boost::system::error_code& ec)
177 ec = boost::asio::error::already_open;
181 socket_holder sock(socket_ops::socket(af, type, protocol, ec));
182 if (sock.get() == invalid_socket)
185 if (int err = reactor_.register_descriptor(sock.get(), impl.reactor_data_))
187 ec = boost::system::error_code(err,
188 boost::asio::error::get_system_category());
192 impl.socket_ = sock.release();
195 case SOCK_STREAM: impl.state_ = socket_ops::stream_oriented; break;
196 case SOCK_DGRAM: impl.state_ = socket_ops::datagram_oriented; break;
197 default: impl.state_ = 0; break;
199 ec = boost::system::error_code();
203 boost::system::error_code reactive_socket_service_base::do_assign(
204 reactive_socket_service_base::base_implementation_type& impl, int type,
205 const reactive_socket_service_base::native_handle_type& native_socket,
206 boost::system::error_code& ec)
210 ec = boost::asio::error::already_open;
214 if (int err = reactor_.register_descriptor(
215 native_socket, impl.reactor_data_))
217 ec = boost::system::error_code(err,
218 boost::asio::error::get_system_category());
222 impl.socket_ = native_socket;
225 case SOCK_STREAM: impl.state_ = socket_ops::stream_oriented; break;
226 case SOCK_DGRAM: impl.state_ = socket_ops::datagram_oriented; break;
227 default: impl.state_ = 0; break;
229 impl.state_ |= socket_ops::possible_dup;
230 ec = boost::system::error_code();
234 void reactive_socket_service_base::start_op(
235 reactive_socket_service_base::base_implementation_type& impl,
236 int op_type, reactor_op* op, bool is_continuation,
237 bool is_non_blocking, bool noop)
241 if ((impl.state_ & socket_ops::non_blocking)
242 || socket_ops::set_internal_non_blocking(
243 impl.socket_, impl.state_, true, op->ec_))
245 reactor_.start_op(op_type, impl.socket_,
246 impl.reactor_data_, op, is_continuation, is_non_blocking);
251 reactor_.post_immediate_completion(op, is_continuation);
254 void reactive_socket_service_base::start_accept_op(
255 reactive_socket_service_base::base_implementation_type& impl,
256 reactor_op* op, bool is_continuation, bool peer_is_open)
259 start_op(impl, reactor::read_op, op, is_continuation, true, false);
262 op->ec_ = boost::asio::error::already_open;
263 reactor_.post_immediate_completion(op, is_continuation);
267 void reactive_socket_service_base::start_connect_op(
268 reactive_socket_service_base::base_implementation_type& impl,
269 reactor_op* op, bool is_continuation,
270 const socket_addr_type* addr, size_t addrlen)
272 if ((impl.state_ & socket_ops::non_blocking)
273 || socket_ops::set_internal_non_blocking(
274 impl.socket_, impl.state_, true, op->ec_))
276 if (socket_ops::connect(impl.socket_, addr, addrlen, op->ec_) != 0)
278 if (op->ec_ == boost::asio::error::in_progress
279 || op->ec_ == boost::asio::error::would_block)
281 op->ec_ = boost::system::error_code();
282 reactor_.start_op(reactor::connect_op, impl.socket_,
283 impl.reactor_data_, op, is_continuation, false);
289 reactor_.post_immediate_completion(op, is_continuation);
292 } // namespace detail
296 #include <boost/asio/detail/pop_options.hpp>
298 #endif // !defined(BOOST_ASIO_HAS_IOCP)
299 // && !defined(BOOST_ASIO_WINDOWS_RUNTIME)
301 #endif // BOOST_ASIO_DETAIL_IMPL_REACTIVE_SOCKET_SERVICE_BASE_IPP