Back to home page

EIC code displayed by LXR
 
 

    

File indexing completed on 2025-01-18 09:28:33 

0001 //
0002 // detail/reactive_socket_service_base.ipp
0003 // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
0004 //
0005 // Copyright (c) 2003-2023 Christopher M. Kohlhoff (chris at kohlhoff dot com)
0006 //
0007 // Distributed under the Boost Software License, Version 1.0. (See accompanying
0008 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
0009 //
0010 
0011 #ifndef BOOST_ASIO_DETAIL_IMPL_REACTIVE_SOCKET_SERVICE_BASE_IPP
0012 #define BOOST_ASIO_DETAIL_IMPL_REACTIVE_SOCKET_SERVICE_BASE_IPP
0013 
0014 #if defined(_MSC_VER) && (_MSC_VER >= 1200)
0015 # pragma once
0016 #endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
0017 
0018 #include <boost/asio/detail/config.hpp>
0019 
0020 #if !defined(BOOST_ASIO_HAS_IOCP) \
0021   && !defined(BOOST_ASIO_WINDOWS_RUNTIME) \
0022   && !defined(BOOST_ASIO_HAS_IO_URING_AS_DEFAULT)
0023 
0024 #include <boost/asio/detail/reactive_socket_service_base.hpp>
0025 
0026 #include <boost/asio/detail/push_options.hpp>
0027 
0028 namespace boost {
0029 namespace asio {
0030 namespace detail {
0031 
0032 reactive_socket_service_base::reactive_socket_service_base(
0033     execution_context& context)
0034   : reactor_(use_service<reactor>(context))
0035 {
0036   reactor_.init_task();
0037 }
0038 
0039 void reactive_socket_service_base::base_shutdown()
0040 {
0041 }
0042 
0043 void reactive_socket_service_base::construct(
0044     reactive_socket_service_base::base_implementation_type& impl)
0045 {
0046   impl.socket_ = invalid_socket;
0047   impl.state_ = 0;
0048   impl.reactor_data_ = reactor::per_descriptor_data();
0049 }
0050 
0051 void reactive_socket_service_base::base_move_construct(
0052     reactive_socket_service_base::base_implementation_type& impl,
0053     reactive_socket_service_base::base_implementation_type& other_impl)
0054   noexcept
0055 {
0056   impl.socket_ = other_impl.socket_;
0057   other_impl.socket_ = invalid_socket;
0058 
0059   impl.state_ = other_impl.state_;
0060   other_impl.state_ = 0;
0061 
0062   reactor_.move_descriptor(impl.socket_,
0063       impl.reactor_data_, other_impl.reactor_data_);
0064 }
0065 
0066 void reactive_socket_service_base::base_move_assign(
0067     reactive_socket_service_base::base_implementation_type& impl,
0068     reactive_socket_service_base& other_service,
0069     reactive_socket_service_base::base_implementation_type& other_impl)
0070 {
0071   destroy(impl);
0072 
0073   impl.socket_ = other_impl.socket_;
0074   other_impl.socket_ = invalid_socket;
0075 
0076   impl.state_ = other_impl.state_;
0077   other_impl.state_ = 0;
0078 
0079   other_service.reactor_.move_descriptor(impl.socket_,
0080       impl.reactor_data_, other_impl.reactor_data_);
0081 }
0082 
0083 void reactive_socket_service_base::destroy(
0084     reactive_socket_service_base::base_implementation_type& impl)
0085 {
0086   if (impl.socket_ != invalid_socket)
0087   {
0088     BOOST_ASIO_HANDLER_OPERATION((reactor_.context(),
0089           "socket", &impl, impl.socket_, "close"));
0090 
0091     reactor_.deregister_descriptor(impl.socket_, impl.reactor_data_,
0092         (impl.state_ & socket_ops::possible_dup) == 0);
0093 
0094     boost::system::error_code ignored_ec;
0095     socket_ops::close(impl.socket_, impl.state_, true, ignored_ec);
0096 
0097     reactor_.cleanup_descriptor_data(impl.reactor_data_);
0098   }
0099 }
0100 
0101 boost::system::error_code reactive_socket_service_base::close(
0102     reactive_socket_service_base::base_implementation_type& impl,
0103     boost::system::error_code& ec)
0104 {
0105   if (is_open(impl))
0106   {
0107     BOOST_ASIO_HANDLER_OPERATION((reactor_.context(),
0108           "socket", &impl, impl.socket_, "close"));
0109 
0110     reactor_.deregister_descriptor(impl.socket_, impl.reactor_data_,
0111         (impl.state_ & socket_ops::possible_dup) == 0);
0112 
0113     socket_ops::close(impl.socket_, impl.state_, false, ec);
0114 
0115     reactor_.cleanup_descriptor_data(impl.reactor_data_);
0116   }
0117   else
0118   {
0119     ec = boost::system::error_code();
0120   }
0121 
0122   // The descriptor is closed by the OS even if close() returns an error.
0123   //
0124   // (Actually, POSIX says the state of the descriptor is unspecified. On
0125   // Linux the descriptor is apparently closed anyway; e.g. see
0126   //   http://lkml.org/lkml/2005/9/10/129
0127   // We'll just have to assume that other OSes follow the same behaviour. The
0128   // known exception is when Windows's closesocket() function fails with
0129   // WSAEWOULDBLOCK, but this case is handled inside socket_ops::close().
0130   construct(impl);
0131 
0132   return ec;
0133 }
0134 
0135 socket_type reactive_socket_service_base::release(
0136     reactive_socket_service_base::base_implementation_type& impl,
0137     boost::system::error_code& ec)
0138 {
0139   if (!is_open(impl))
0140   {
0141     ec = boost::asio::error::bad_descriptor;
0142     return invalid_socket;
0143   }
0144 
0145   BOOST_ASIO_HANDLER_OPERATION((reactor_.context(),
0146         "socket", &impl, impl.socket_, "release"));
0147 
0148   reactor_.deregister_descriptor(impl.socket_, impl.reactor_data_, false);
0149   reactor_.cleanup_descriptor_data(impl.reactor_data_);
0150   socket_type sock = impl.socket_;
0151   construct(impl);
0152   ec = boost::system::error_code();
0153   return sock;
0154 }
0155 
0156 boost::system::error_code reactive_socket_service_base::cancel(
0157     reactive_socket_service_base::base_implementation_type& impl,
0158     boost::system::error_code& ec)
0159 {
0160   if (!is_open(impl))
0161   {
0162     ec = boost::asio::error::bad_descriptor;
0163     return ec;
0164   }
0165 
0166   BOOST_ASIO_HANDLER_OPERATION((reactor_.context(),
0167         "socket", &impl, impl.socket_, "cancel"));
0168 
0169   reactor_.cancel_ops(impl.socket_, impl.reactor_data_);
0170   ec = boost::system::error_code();
0171   return ec;
0172 }
0173 
0174 boost::system::error_code reactive_socket_service_base::do_open(
0175     reactive_socket_service_base::base_implementation_type& impl,
0176     int af, int type, int protocol, boost::system::error_code& ec)
0177 {
0178   if (is_open(impl))
0179   {
0180     ec = boost::asio::error::already_open;
0181     return ec;
0182   }
0183 
0184   socket_holder sock(socket_ops::socket(af, type, protocol, ec));
0185   if (sock.get() == invalid_socket)
0186     return ec;
0187 
0188   if (int err = reactor_.register_descriptor(sock.get(), impl.reactor_data_))
0189   {
0190     ec = boost::system::error_code(err,
0191         boost::asio::error::get_system_category());
0192     return ec;
0193   }
0194 
0195   impl.socket_ = sock.release();
0196   switch (type)
0197   {
0198   case SOCK_STREAM: impl.state_ = socket_ops::stream_oriented; break;
0199   case SOCK_DGRAM: impl.state_ = socket_ops::datagram_oriented; break;
0200   default: impl.state_ = 0; break;
0201   }
0202   ec = boost::system::error_code();
0203   return ec;
0204 }
0205 
0206 boost::system::error_code reactive_socket_service_base::do_assign(
0207     reactive_socket_service_base::base_implementation_type& impl, int type,
0208     const reactive_socket_service_base::native_handle_type& native_socket,
0209     boost::system::error_code& ec)
0210 {
0211   if (is_open(impl))
0212   {
0213     ec = boost::asio::error::already_open;
0214     return ec;
0215   }
0216 
0217   if (int err = reactor_.register_descriptor(
0218         native_socket, impl.reactor_data_))
0219   {
0220     ec = boost::system::error_code(err,
0221         boost::asio::error::get_system_category());
0222     return ec;
0223   }
0224 
0225   impl.socket_ = native_socket;
0226   switch (type)
0227   {
0228   case SOCK_STREAM: impl.state_ = socket_ops::stream_oriented; break;
0229   case SOCK_DGRAM: impl.state_ = socket_ops::datagram_oriented; break;
0230   default: impl.state_ = 0; break;
0231   }
0232   impl.state_ |= socket_ops::possible_dup;
0233   ec = boost::system::error_code();
0234   return ec;
0235 }
0236 
0237 void reactive_socket_service_base::do_start_op(
0238     reactive_socket_service_base::base_implementation_type& impl, int op_type,
0239     reactor_op* op, bool is_continuation, bool is_non_blocking, bool noop,
0240     void (*on_immediate)(operation* op, bool, const void*),
0241     const void* immediate_arg)
0242 {
0243   if (!noop)
0244   {
0245     if ((impl.state_ & socket_ops::non_blocking)
0246         || socket_ops::set_internal_non_blocking(
0247           impl.socket_, impl.state_, true, op->ec_))
0248     {
0249       reactor_.start_op(op_type, impl.socket_, impl.reactor_data_, op,
0250           is_continuation, is_non_blocking, on_immediate, immediate_arg);
0251       return;
0252     }
0253   }
0254 
0255   on_immediate(op, is_continuation, immediate_arg);
0256 }
0257 
0258 void reactive_socket_service_base::do_start_accept_op(
0259     reactive_socket_service_base::base_implementation_type& impl,
0260     reactor_op* op, bool is_continuation, bool peer_is_open,
0261     void (*on_immediate)(operation* op, bool, const void*),
0262     const void* immediate_arg)
0263 {
0264   if (!peer_is_open)
0265   {
0266     do_start_op(impl, reactor::read_op, op, is_continuation,
0267         true, false, on_immediate, immediate_arg);
0268   }
0269   else
0270   {
0271     op->ec_ = boost::asio::error::already_open;
0272     on_immediate(op, is_continuation, immediate_arg);
0273   }
0274 }
0275 
0276 void reactive_socket_service_base::do_start_connect_op(
0277     reactive_socket_service_base::base_implementation_type& impl,
0278     reactor_op* op, bool is_continuation, const void* addr, size_t addrlen,
0279     void (*on_immediate)(operation* op, bool, const void*),
0280     const void* immediate_arg)
0281 {
0282   if ((impl.state_ & socket_ops::non_blocking)
0283       || socket_ops::set_internal_non_blocking(
0284         impl.socket_, impl.state_, true, op->ec_))
0285   {
0286     if (socket_ops::connect(impl.socket_, addr, addrlen, op->ec_) != 0)
0287     {
0288       if (op->ec_ == boost::asio::error::in_progress
0289           || op->ec_ == boost::asio::error::would_block)
0290       {
0291         op->ec_ = boost::system::error_code();
0292         reactor_.start_op(reactor::connect_op, impl.socket_, impl.reactor_data_,
0293             op, is_continuation, false, on_immediate, immediate_arg);
0294         return;
0295       }
0296     }
0297   }
0298 
0299   on_immediate(op, is_continuation, immediate_arg);
0300 }
0301 
0302 } // namespace detail
0303 } // namespace asio
0304 } // namespace boost
0305 
0306 #include <boost/asio/detail/pop_options.hpp>
0307 
0308 #endif // !defined(BOOST_ASIO_HAS_IOCP)
0309        //   && !defined(BOOST_ASIO_WINDOWS_RUNTIME)
0310        //   && !defined(BOOST_ASIO_HAS_IO_URING_AS_DEFAULT)
0311 
0312 #endif // BOOST_ASIO_DETAIL_IMPL_REACTIVE_SOCKET_SERVICE_BASE_IPP
[ Source navigation ] [ Diff markup ] [ Identifier search ] [ general search ]

This page was automatically generated by the 2.3.7 LXR engine.

The LXR team
Valid CSS 2.1! Valid HTML 4.01!