| // |
| // detail/impl/reactive_descriptor_service.ipp |
| // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| // |
| // Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com) |
| // |
| // Distributed under the Boost Software License, Version 1.0. (See accompanying |
| // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
| // |
| |
| #ifndef BOOST_ASIO_DETAIL_IMPL_REACTIVE_DESCRIPTOR_SERVICE_IPP |
| #define BOOST_ASIO_DETAIL_IMPL_REACTIVE_DESCRIPTOR_SERVICE_IPP |
| |
| #if defined(_MSC_VER) && (_MSC_VER >= 1200) |
| # pragma once |
| #endif // defined(_MSC_VER) && (_MSC_VER >= 1200) |
| |
| #include <boost/asio/detail/config.hpp> |
| |
| #if !defined(BOOST_WINDOWS) && !defined(__CYGWIN__) |
| |
| #include <boost/asio/error.hpp> |
| #include <boost/asio/detail/reactive_descriptor_service.hpp> |
| |
| #include <boost/asio/detail/push_options.hpp> |
| |
| namespace boost { |
| namespace asio { |
| namespace detail { |
| |
| reactive_descriptor_service::reactive_descriptor_service( |
| boost::asio::io_service& io_service) |
| : reactor_(boost::asio::use_service<reactor>(io_service)) |
| { |
| reactor_.init_task(); |
| } |
| |
| void reactive_descriptor_service::shutdown_service() |
| { |
| } |
| |
| void reactive_descriptor_service::construct( |
| reactive_descriptor_service::implementation_type& impl) |
| { |
| impl.descriptor_ = -1; |
| impl.state_ = 0; |
| } |
| |
| void reactive_descriptor_service::move_construct( |
| reactive_descriptor_service::implementation_type& impl, |
| reactive_descriptor_service::implementation_type& other_impl) |
| { |
| impl.descriptor_ = other_impl.descriptor_; |
| other_impl.descriptor_ = -1; |
| |
| impl.state_ = other_impl.state_; |
| other_impl.state_ = 0; |
| |
| reactor_.move_descriptor(impl.descriptor_, |
| impl.reactor_data_, other_impl.reactor_data_); |
| } |
| |
| void reactive_descriptor_service::move_assign( |
| reactive_descriptor_service::implementation_type& impl, |
| reactive_descriptor_service& other_service, |
| reactive_descriptor_service::implementation_type& other_impl) |
| { |
| destroy(impl); |
| |
| impl.descriptor_ = other_impl.descriptor_; |
| other_impl.descriptor_ = -1; |
| |
| impl.state_ = other_impl.state_; |
| other_impl.state_ = 0; |
| |
| other_service.reactor_.move_descriptor(impl.descriptor_, |
| impl.reactor_data_, other_impl.reactor_data_); |
| } |
| |
| void reactive_descriptor_service::destroy( |
| reactive_descriptor_service::implementation_type& impl) |
| { |
| if (is_open(impl)) |
| { |
| BOOST_ASIO_HANDLER_OPERATION(("descriptor", &impl, "close")); |
| |
| reactor_.deregister_descriptor(impl.descriptor_, impl.reactor_data_, |
| (impl.state_ & descriptor_ops::possible_dup) == 0); |
| } |
| |
| boost::system::error_code ignored_ec; |
| descriptor_ops::close(impl.descriptor_, impl.state_, ignored_ec); |
| } |
| |
| boost::system::error_code reactive_descriptor_service::assign( |
| reactive_descriptor_service::implementation_type& impl, |
| const native_handle_type& native_descriptor, boost::system::error_code& ec) |
| { |
| if (is_open(impl)) |
| { |
| ec = boost::asio::error::already_open; |
| return ec; |
| } |
| |
| if (int err = reactor_.register_descriptor( |
| native_descriptor, impl.reactor_data_)) |
| { |
| ec = boost::system::error_code(err, |
| boost::asio::error::get_system_category()); |
| return ec; |
| } |
| |
| impl.descriptor_ = native_descriptor; |
| impl.state_ = descriptor_ops::possible_dup; |
| ec = boost::system::error_code(); |
| return ec; |
| } |
| |
| boost::system::error_code reactive_descriptor_service::close( |
| reactive_descriptor_service::implementation_type& impl, |
| boost::system::error_code& ec) |
| { |
| if (is_open(impl)) |
| { |
| BOOST_ASIO_HANDLER_OPERATION(("descriptor", &impl, "close")); |
| |
| reactor_.deregister_descriptor(impl.descriptor_, impl.reactor_data_, |
| (impl.state_ & descriptor_ops::possible_dup) == 0); |
| } |
| |
| descriptor_ops::close(impl.descriptor_, impl.state_, ec); |
| |
| // The descriptor is closed by the OS even if close() returns an error. |
| // |
| // (Actually, POSIX says the state of the descriptor is unspecified. On |
| // Linux the descriptor is apparently closed anyway; e.g. see |
| // http://lkml.org/lkml/2005/9/10/129 |
| // We'll just have to assume that other OSes follow the same behaviour.) |
| construct(impl); |
| |
| return ec; |
| } |
| |
| reactive_descriptor_service::native_handle_type |
| reactive_descriptor_service::release( |
| reactive_descriptor_service::implementation_type& impl) |
| { |
| native_handle_type descriptor = impl.descriptor_; |
| |
| if (is_open(impl)) |
| { |
| BOOST_ASIO_HANDLER_OPERATION(("descriptor", &impl, "release")); |
| |
| reactor_.deregister_descriptor(impl.descriptor_, impl.reactor_data_, false); |
| construct(impl); |
| } |
| |
| return descriptor; |
| } |
| |
| boost::system::error_code reactive_descriptor_service::cancel( |
| reactive_descriptor_service::implementation_type& impl, |
| boost::system::error_code& ec) |
| { |
| if (!is_open(impl)) |
| { |
| ec = boost::asio::error::bad_descriptor; |
| return ec; |
| } |
| |
| BOOST_ASIO_HANDLER_OPERATION(("descriptor", &impl, "cancel")); |
| |
| reactor_.cancel_ops(impl.descriptor_, impl.reactor_data_); |
| ec = boost::system::error_code(); |
| return ec; |
| } |
| |
| void reactive_descriptor_service::start_op( |
| reactive_descriptor_service::implementation_type& impl, |
| int op_type, reactor_op* op, bool is_non_blocking, bool noop) |
| { |
| if (!noop) |
| { |
| if ((impl.state_ & descriptor_ops::non_blocking) || |
| descriptor_ops::set_internal_non_blocking( |
| impl.descriptor_, impl.state_, true, op->ec_)) |
| { |
| reactor_.start_op(op_type, impl.descriptor_, |
| impl.reactor_data_, op, is_non_blocking); |
| return; |
| } |
| } |
| |
| reactor_.post_immediate_completion(op); |
| } |
| |
| } // namespace detail |
| } // namespace asio |
| } // namespace boost |
| |
| #include <boost/asio/detail/pop_options.hpp> |
| |
| #endif // !defined(BOOST_WINDOWS) && !defined(__CYGWIN__) |
| |
| #endif // BOOST_ASIO_DETAIL_IMPL_REACTIVE_DESCRIPTOR_SERVICE_IPP |