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diff --git a/3rdparty/asio/include/asio/experimental/impl/as_single.hpp b/3rdparty/asio/include/asio/experimental/impl/as_single.hpp
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+++ b/3rdparty/asio/include/asio/experimental/impl/as_single.hpp
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+//
+// experimental/impl/as_single.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2024 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 ASIO_IMPL_EXPERIMENTAL_AS_SINGLE_HPP
+#define ASIO_IMPL_EXPERIMENTAL_AS_SINGLE_HPP
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1200)
+# pragma once
+#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
+
+#include "asio/detail/config.hpp"
+#include <tuple>
+#include "asio/associator.hpp"
+#include "asio/async_result.hpp"
+#include "asio/detail/handler_cont_helpers.hpp"
+#include "asio/detail/type_traits.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace experimental {
+namespace detail {
+
+// Class to adapt a as_single_t as a completion handler.
+template <typename Handler>
+class as_single_handler
+{
+public:
+ typedef void result_type;
+
+ template <typename CompletionToken>
+ as_single_handler(as_single_t<CompletionToken> e)
+ : handler_(static_cast<CompletionToken&&>(e.token_))
+ {
+ }
+
+ template <typename RedirectedHandler>
+ as_single_handler(RedirectedHandler&& h)
+ : handler_(static_cast<RedirectedHandler&&>(h))
+ {
+ }
+
+ void operator()()
+ {
+ static_cast<Handler&&>(handler_)();
+ }
+
+ template <typename Arg>
+ void operator()(Arg&& arg)
+ {
+ static_cast<Handler&&>(handler_)(static_cast<Arg&&>(arg));
+ }
+
+ template <typename... Args>
+ void operator()(Args&&... args)
+ {
+ static_cast<Handler&&>(handler_)(
+ std::make_tuple(static_cast<Args&&>(args)...));
+ }
+
+//private:
+ Handler handler_;
+};
+
+template <typename Handler>
+inline bool asio_handler_is_continuation(
+ as_single_handler<Handler>* this_handler)
+{
+ return asio_handler_cont_helpers::is_continuation(
+ this_handler->handler_);
+}
+
+template <typename Signature>
+struct as_single_signature
+{
+ typedef Signature type;
+};
+
+template <typename R>
+struct as_single_signature<R()>
+{
+ typedef R type();
+};
+
+template <typename R, typename Arg>
+struct as_single_signature<R(Arg)>
+{
+ typedef R type(Arg);
+};
+
+template <typename R, typename... Args>
+struct as_single_signature<R(Args...)>
+{
+ typedef R type(std::tuple<decay_t<Args>...>);
+};
+
+} // namespace detail
+} // namespace experimental
+
+#if !defined(GENERATING_DOCUMENTATION)
+
+template <typename CompletionToken, typename Signature>
+struct async_result<experimental::as_single_t<CompletionToken>, Signature>
+{
+ template <typename Initiation>
+ struct init_wrapper
+ {
+ init_wrapper(Initiation init)
+ : initiation_(static_cast<Initiation&&>(init))
+ {
+ }
+
+ template <typename Handler, typename... Args>
+ void operator()(Handler&& handler, Args&&... args)
+ {
+ static_cast<Initiation&&>(initiation_)(
+ experimental::detail::as_single_handler<decay_t<Handler>>(
+ static_cast<Handler&&>(handler)),
+ static_cast<Args&&>(args)...);
+ }
+
+ Initiation initiation_;
+ };
+
+ template <typename Initiation, typename RawCompletionToken, typename... Args>
+ static auto initiate(Initiation&& initiation,
+ RawCompletionToken&& token, Args&&... args)
+ -> decltype(
+ async_initiate<CompletionToken,
+ typename experimental::detail::as_single_signature<Signature>::type>(
+ init_wrapper<decay_t<Initiation>>(
+ static_cast<Initiation&&>(initiation)),
+ token.token_, static_cast<Args&&>(args)...))
+ {
+ return async_initiate<CompletionToken,
+ typename experimental::detail::as_single_signature<Signature>::type>(
+ init_wrapper<decay_t<Initiation>>(
+ static_cast<Initiation&&>(initiation)),
+ token.token_, static_cast<Args&&>(args)...);
+ }
+};
+
+template <template <typename, typename> class Associator,
+ typename Handler, typename DefaultCandidate>
+struct associator<Associator,
+ experimental::detail::as_single_handler<Handler>, DefaultCandidate>
+ : Associator<Handler, DefaultCandidate>
+{
+ static typename Associator<Handler, DefaultCandidate>::type get(
+ const experimental::detail::as_single_handler<Handler>& h) noexcept
+ {
+ return Associator<Handler, DefaultCandidate>::get(h.handler_);
+ }
+
+ static auto get(const experimental::detail::as_single_handler<Handler>& h,
+ const DefaultCandidate& c) noexcept
+ -> decltype(Associator<Handler, DefaultCandidate>::get(h.handler_, c))
+ {
+ return Associator<Handler, DefaultCandidate>::get(h.handler_, c);
+ }
+};
+
+#endif // !defined(GENERATING_DOCUMENTATION)
+
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_IMPL_EXPERIMENTAL_AS_SINGLE_HPP