131 lines
3.0 KiB
C++
131 lines
3.0 KiB
C++
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//
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// impl/detached.hpp
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// ~~~~~~~~~~~~~~~~~
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//
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// Copyright (c) 2003-2023 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 ASIO_IMPL_DETACHED_HPP
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#define ASIO_IMPL_DETACHED_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 "asio/detail/config.hpp"
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#include "asio/async_result.hpp"
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#include "asio/detail/variadic_templates.hpp"
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#include "asio/detail/push_options.hpp"
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namespace asio {
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namespace detail {
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// Class to adapt a detached_t as a completion handler.
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class detached_handler
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{
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public:
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typedef void result_type;
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detached_handler(detached_t)
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{
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}
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#if defined(ASIO_HAS_VARIADIC_TEMPLATES)
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template <typename... Args>
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void operator()(Args...)
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{
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}
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#else // defined(ASIO_HAS_VARIADIC_TEMPLATES)
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void operator()()
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{
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}
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#define ASIO_PRIVATE_DETACHED_DEF(n) \
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template <ASIO_VARIADIC_TPARAMS(n)> \
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void operator()(ASIO_VARIADIC_TARGS(n)) \
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{ \
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} \
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/**/
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ASIO_VARIADIC_GENERATE(ASIO_PRIVATE_DETACHED_DEF)
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#undef ASIO_PRIVATE_DETACHED_DEF
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#endif // defined(ASIO_HAS_VARIADIC_TEMPLATES)
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};
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} // namespace detail
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#if !defined(GENERATING_DOCUMENTATION)
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template <typename Signature>
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struct async_result<detached_t, Signature>
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{
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typedef asio::detail::detached_handler completion_handler_type;
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typedef void return_type;
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explicit async_result(completion_handler_type&)
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{
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}
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void get()
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{
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}
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#if defined(ASIO_HAS_VARIADIC_TEMPLATES)
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template <typename Initiation, typename RawCompletionToken, typename... Args>
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static return_type initiate(
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ASIO_MOVE_ARG(Initiation) initiation,
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ASIO_MOVE_ARG(RawCompletionToken),
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ASIO_MOVE_ARG(Args)... args)
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{
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ASIO_MOVE_CAST(Initiation)(initiation)(
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detail::detached_handler(detached_t()),
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ASIO_MOVE_CAST(Args)(args)...);
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}
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#else // defined(ASIO_HAS_VARIADIC_TEMPLATES)
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template <typename Initiation, typename RawCompletionToken>
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static return_type initiate(
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ASIO_MOVE_ARG(Initiation) initiation,
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ASIO_MOVE_ARG(RawCompletionToken))
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{
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ASIO_MOVE_CAST(Initiation)(initiation)(
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detail::detached_handler(detached_t()));
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}
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#define ASIO_PRIVATE_INITIATE_DEF(n) \
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template <typename Initiation, typename RawCompletionToken, \
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ASIO_VARIADIC_TPARAMS(n)> \
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static return_type initiate( \
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ASIO_MOVE_ARG(Initiation) initiation, \
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ASIO_MOVE_ARG(RawCompletionToken), \
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ASIO_VARIADIC_MOVE_PARAMS(n)) \
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{ \
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ASIO_MOVE_CAST(Initiation)(initiation)( \
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detail::detached_handler(detached_t()), \
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ASIO_VARIADIC_MOVE_ARGS(n)); \
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} \
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/**/
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ASIO_VARIADIC_GENERATE(ASIO_PRIVATE_INITIATE_DEF)
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#undef ASIO_PRIVATE_INITIATE_DEF
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#endif // defined(ASIO_HAS_VARIADIC_TEMPLATES)
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};
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#endif // !defined(GENERATING_DOCUMENTATION)
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} // namespace asio
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#include "asio/detail/pop_options.hpp"
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#endif // ASIO_IMPL_DETACHED_HPP
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