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107 lines
3.4 KiB
C++
107 lines
3.4 KiB
C++
2 years ago
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//
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// experimental/impl/deferred.hpp
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// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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//
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// Copyright (c) 2003-2021 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_EXPERIMENTAL_IMPL_DEFERRED_HPP
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#define BOOST_ASIO_EXPERIMENTAL_IMPL_DEFERRED_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/push_options.hpp>
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namespace boost {
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namespace asio {
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#if !defined(GENERATING_DOCUMENTATION)
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template <typename R, typename... Args>
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class async_result<
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experimental::detail::deferred_signature_probe, R(Args...)>
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{
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public:
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typedef experimental::detail::deferred_signature_probe_result<void(Args...)>
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return_type;
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template <typename Initiation, typename... InitArgs>
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static return_type initiate(
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BOOST_ASIO_MOVE_ARG(Initiation),
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experimental::detail::deferred_signature_probe,
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BOOST_ASIO_MOVE_ARG(InitArgs)...)
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{
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return return_type{};
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}
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};
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template <typename Signature>
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class async_result<experimental::deferred_t, Signature>
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{
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public:
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template <typename Initiation, typename... InitArgs>
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static experimental::deferred_async_operation<
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Signature, Initiation, InitArgs...>
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initiate(BOOST_ASIO_MOVE_ARG(Initiation) initiation,
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experimental::deferred_t, BOOST_ASIO_MOVE_ARG(InitArgs)... args)
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{
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return experimental::deferred_async_operation<
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Signature, Initiation, InitArgs...>(
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experimental::deferred_init_tag{},
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BOOST_ASIO_MOVE_CAST(Initiation)(initiation),
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BOOST_ASIO_MOVE_CAST(InitArgs)(args)...);
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}
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};
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template <typename Function, typename R, typename... Args>
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class async_result<
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experimental::deferred_function<Function>, R(Args...)>
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{
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public:
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template <typename Initiation, typename... InitArgs>
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static auto initiate(BOOST_ASIO_MOVE_ARG(Initiation) initiation,
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experimental::deferred_function<Function> token,
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BOOST_ASIO_MOVE_ARG(InitArgs)... init_args)
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{
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return experimental::deferred_sequence<
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experimental::deferred_async_operation<
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R(Args...), Initiation, InitArgs...>,
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Function>(experimental::deferred_init_tag{},
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experimental::deferred_async_operation<
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R(Args...), Initiation, InitArgs...>(
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experimental::deferred_init_tag{},
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BOOST_ASIO_MOVE_CAST(Initiation)(initiation),
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BOOST_ASIO_MOVE_CAST(InitArgs)(init_args)...),
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BOOST_ASIO_MOVE_CAST(Function)(token.function_));
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}
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};
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template <template <typename, typename> class Associator,
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typename Handler, typename Tail, typename DefaultCandidate>
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struct associator<Associator,
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experimental::detail::deferred_sequence_handler<Handler, Tail>,
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DefaultCandidate>
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: Associator<Handler, DefaultCandidate>
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{
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static typename Associator<Handler, DefaultCandidate>::type get(
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const experimental::detail::deferred_sequence_handler<Handler, Tail>& h,
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const DefaultCandidate& c = DefaultCandidate()) BOOST_ASIO_NOEXCEPT
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{
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return Associator<Handler, DefaultCandidate>::get(h.handler_, c);
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}
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};
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#endif // !defined(GENERATING_DOCUMENTATION)
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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 // BOOST_ASIO_EXPERIMENTAL_IMPL_DEFERRED_HPP
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