/Src/Dependencies/Boost/boost/asio/detail/impl/reactive_descriptor_service.ipp
http://hadesmem.googlecode.com/ · C++ Header · 205 lines · 149 code · 41 blank · 15 comment · 12 complexity · 310f71f117786e3695ff603510be46e0 MD5 · raw file
- //
- // 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