mirror of
https://github.com/yuzu-emu/ext-boost.git
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124 lines
3.9 KiB
C++
124 lines
3.9 KiB
C++
//
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// detail/winrt_resolve_op.hpp
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// ~~~~~~~~~~~~~~~~~~~~~~~~~~~
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//
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// Copyright (c) 2003-2019 Christopher M. Kohlhoff (chris at kohlhoff dot com)
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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#ifndef BOOST_ASIO_DETAIL_WINRT_RESOLVE_OP_HPP
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#define BOOST_ASIO_DETAIL_WINRT_RESOLVE_OP_HPP
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#if defined(_MSC_VER) && (_MSC_VER >= 1200)
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# pragma once
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#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
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#include <boost/asio/detail/config.hpp>
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#if defined(BOOST_ASIO_WINDOWS_RUNTIME)
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#include <boost/asio/detail/bind_handler.hpp>
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#include <boost/asio/detail/fenced_block.hpp>
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#include <boost/asio/detail/handler_alloc_helpers.hpp>
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#include <boost/asio/detail/handler_invoke_helpers.hpp>
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#include <boost/asio/detail/memory.hpp>
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#include <boost/asio/detail/winrt_async_op.hpp>
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#include <boost/asio/ip/basic_resolver_results.hpp>
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#include <boost/asio/error.hpp>
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#include <boost/asio/detail/push_options.hpp>
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namespace boost {
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namespace asio {
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namespace detail {
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template <typename Protocol, typename Handler, typename IoExecutor>
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class winrt_resolve_op :
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public winrt_async_op<
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Windows::Foundation::Collections::IVectorView<
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Windows::Networking::EndpointPair^>^>
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{
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public:
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BOOST_ASIO_DEFINE_HANDLER_PTR(winrt_resolve_op);
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typedef typename Protocol::endpoint endpoint_type;
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typedef boost::asio::ip::basic_resolver_query<Protocol> query_type;
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typedef boost::asio::ip::basic_resolver_results<Protocol> results_type;
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winrt_resolve_op(const query_type& query,
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Handler& handler, const IoExecutor& io_ex)
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: winrt_async_op<
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Windows::Foundation::Collections::IVectorView<
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Windows::Networking::EndpointPair^>^>(
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&winrt_resolve_op::do_complete),
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query_(query),
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handler_(BOOST_ASIO_MOVE_CAST(Handler)(handler)),
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io_executor_(io_ex)
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{
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handler_work<Handler, IoExecutor>::start(handler_, io_executor_);
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}
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static void do_complete(void* owner, operation* base,
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const boost::system::error_code&, std::size_t)
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{
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// Take ownership of the operation object.
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winrt_resolve_op* o(static_cast<winrt_resolve_op*>(base));
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ptr p = { boost::asio::detail::addressof(o->handler_), o, o };
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handler_work<Handler, IoExecutor> w(o->handler_, o->io_executor_);
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BOOST_ASIO_HANDLER_COMPLETION((*o));
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results_type results = results_type();
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if (!o->ec_)
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{
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try
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{
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results = results_type::create(o->result_, o->query_.hints(),
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o->query_.host_name(), o->query_.service_name());
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}
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catch (Platform::Exception^ e)
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{
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o->ec_ = boost::system::error_code(e->HResult,
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boost::system::system_category());
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}
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}
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// Make a copy of the handler so that the memory can be deallocated before
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// the upcall is made. Even if we're not about to make an upcall, a
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// sub-object of the handler may be the true owner of the memory associated
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// with the handler. Consequently, a local copy of the handler is required
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// to ensure that any owning sub-object remains valid until after we have
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// deallocated the memory here.
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detail::binder2<Handler, boost::system::error_code, results_type>
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handler(o->handler_, o->ec_, results);
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p.h = boost::asio::detail::addressof(handler.handler_);
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p.reset();
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// Make the upcall if required.
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if (owner)
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{
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fenced_block b(fenced_block::half);
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BOOST_ASIO_HANDLER_INVOCATION_BEGIN((handler.arg1_, "..."));
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w.complete(handler, handler.handler_);
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BOOST_ASIO_HANDLER_INVOCATION_END;
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}
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}
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private:
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query_type query_;
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Handler handler_;
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IoExecutor io_executor_;
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};
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} // namespace detail
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} // namespace asio
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} // namespace boost
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#include <boost/asio/detail/pop_options.hpp>
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#endif // defined(BOOST_ASIO_WINDOWS_RUNTIME)
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#endif // BOOST_ASIO_DETAIL_WINRT_RESOLVE_OP_HPP
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