| // |
| // execution/detail/submit_receiver.hpp |
| // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| // |
| // Copyright (c) 2003-2021 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_EXECUTION_DETAIL_SUBMIT_RECEIVER_HPP |
| #define BOOST_ASIO_EXECUTION_DETAIL_SUBMIT_RECEIVER_HPP |
| |
| #if defined(_MSC_VER) && (_MSC_VER >= 1200) |
| # pragma once |
| #endif // defined(_MSC_VER) && (_MSC_VER >= 1200) |
| |
| #include <boost/asio/detail/config.hpp> |
| #include <boost/asio/detail/type_traits.hpp> |
| #include <boost/asio/detail/variadic_templates.hpp> |
| #include <boost/asio/execution/connect.hpp> |
| #include <boost/asio/execution/receiver.hpp> |
| #include <boost/asio/execution/set_done.hpp> |
| #include <boost/asio/execution/set_error.hpp> |
| #include <boost/asio/execution/set_value.hpp> |
| #include <boost/asio/traits/set_done_member.hpp> |
| #include <boost/asio/traits/set_error_member.hpp> |
| #include <boost/asio/traits/set_value_member.hpp> |
| |
| #include <boost/asio/detail/push_options.hpp> |
| |
| namespace boost { |
| namespace asio { |
| namespace execution { |
| namespace detail { |
| |
| template <typename Sender, typename Receiver> |
| struct submit_receiver; |
| |
| template <typename Sender, typename Receiver> |
| struct submit_receiver_wrapper |
| { |
| submit_receiver<Sender, Receiver>* p_; |
| |
| explicit submit_receiver_wrapper(submit_receiver<Sender, Receiver>* p) |
| : p_(p) |
| { |
| } |
| |
| #if defined(BOOST_ASIO_HAS_VARIADIC_TEMPLATES) |
| |
| template <typename... Args> |
| typename enable_if<is_receiver_of<Receiver, Args...>::value>::type |
| set_value(BOOST_ASIO_MOVE_ARG(Args)... args) BOOST_ASIO_RVALUE_REF_QUAL |
| BOOST_ASIO_NOEXCEPT_IF((is_nothrow_receiver_of<Receiver, Args...>::value)) |
| { |
| execution::set_value( |
| BOOST_ASIO_MOVE_OR_LVALUE( |
| typename remove_cvref<Receiver>::type)(p_->r_), |
| BOOST_ASIO_MOVE_CAST(Args)(args)...); |
| delete p_; |
| } |
| |
| #else // defined(BOOST_ASIO_HAS_VARIADIC_TEMPLATES) |
| |
| void set_value() BOOST_ASIO_RVALUE_REF_QUAL |
| BOOST_ASIO_NOEXCEPT_IF((is_nothrow_receiver_of<Receiver>::value)) |
| { |
| execution::set_value( |
| BOOST_ASIO_MOVE_OR_LVALUE( |
| typename remove_cvref<Receiver>::type)(p_->r_)); |
| delete p_; |
| } |
| |
| #define BOOST_ASIO_PRIVATE_SUBMIT_RECEIVER_SET_VALUE_DEF(n) \ |
| template <BOOST_ASIO_VARIADIC_TPARAMS(n)> \ |
| typename enable_if<is_receiver_of<Receiver, \ |
| BOOST_ASIO_VARIADIC_TARGS(n)>::value>::type \ |
| set_value(BOOST_ASIO_VARIADIC_MOVE_PARAMS(n)) BOOST_ASIO_RVALUE_REF_QUAL \ |
| BOOST_ASIO_NOEXCEPT_IF((is_nothrow_receiver_of< \ |
| Receiver, BOOST_ASIO_VARIADIC_TARGS(n)>::value)) \ |
| { \ |
| execution::set_value( \ |
| BOOST_ASIO_MOVE_OR_LVALUE( \ |
| typename remove_cvref<Receiver>::type)(p_->r_), \ |
| BOOST_ASIO_VARIADIC_MOVE_ARGS(n)); \ |
| delete p_; \ |
| } \ |
| /**/ |
| BOOST_ASIO_VARIADIC_GENERATE(BOOST_ASIO_PRIVATE_SUBMIT_RECEIVER_SET_VALUE_DEF) |
| #undef BOOST_ASIO_PRIVATE_SUBMIT_RECEIVER_SET_VALUE_DEF |
| |
| #endif // defined(BOOST_ASIO_HAS_VARIADIC_TEMPLATES) |
| |
| template <typename E> |
| void set_error(BOOST_ASIO_MOVE_ARG(E) e) |
| BOOST_ASIO_RVALUE_REF_QUAL BOOST_ASIO_NOEXCEPT |
| { |
| execution::set_error( |
| BOOST_ASIO_MOVE_OR_LVALUE( |
| typename remove_cvref<Receiver>::type)(p_->r_), |
| BOOST_ASIO_MOVE_CAST(E)(e)); |
| delete p_; |
| } |
| |
| void set_done() BOOST_ASIO_RVALUE_REF_QUAL BOOST_ASIO_NOEXCEPT |
| { |
| execution::set_done( |
| BOOST_ASIO_MOVE_OR_LVALUE( |
| typename remove_cvref<Receiver>::type)(p_->r_)); |
| delete p_; |
| } |
| }; |
| |
| template <typename Sender, typename Receiver> |
| struct submit_receiver |
| { |
| typename remove_cvref<Receiver>::type r_; |
| #if defined(BOOST_ASIO_HAS_MOVE) |
| typename connect_result<Sender, |
| submit_receiver_wrapper<Sender, Receiver> >::type state_; |
| #else // defined(BOOST_ASIO_HAS_MOVE) |
| typename connect_result<Sender, |
| const submit_receiver_wrapper<Sender, Receiver>& >::type state_; |
| #endif // defined(BOOST_ASIO_HAS_MOVE) |
| |
| #if defined(BOOST_ASIO_HAS_MOVE) |
| template <typename S, typename R> |
| explicit submit_receiver(BOOST_ASIO_MOVE_ARG(S) s, BOOST_ASIO_MOVE_ARG(R) r) |
| : r_(BOOST_ASIO_MOVE_CAST(R)(r)), |
| state_(execution::connect(BOOST_ASIO_MOVE_CAST(S)(s), |
| submit_receiver_wrapper<Sender, Receiver>(this))) |
| { |
| } |
| #else // defined(BOOST_ASIO_HAS_MOVE) |
| explicit submit_receiver(Sender s, Receiver r) |
| : r_(r), |
| state_(execution::connect(s, |
| submit_receiver_wrapper<Sender, Receiver>(this))) |
| { |
| } |
| #endif // defined(BOOST_ASIO_HAS_MOVE) |
| }; |
| |
| } // namespace detail |
| } // namespace execution |
| namespace traits { |
| |
| #if !defined(BOOST_ASIO_HAS_DEDUCED_SET_VALUE_MEMBER_TRAIT) |
| |
| #if defined(BOOST_ASIO_HAS_VARIADIC_TEMPLATES) |
| |
| template <typename Sender, typename Receiver, typename... Args> |
| struct set_value_member< |
| boost::asio::execution::detail::submit_receiver_wrapper< |
| Sender, Receiver>, |
| void(Args...)> |
| { |
| BOOST_ASIO_STATIC_CONSTEXPR(bool, is_valid = true); |
| BOOST_ASIO_STATIC_CONSTEXPR(bool, is_noexcept = |
| (boost::asio::execution::is_nothrow_receiver_of<Receiver, Args...>::value)); |
| typedef void result_type; |
| }; |
| |
| #else // defined(BOOST_ASIO_HAS_VARIADIC_TEMPLATES) |
| |
| template <typename Sender, typename Receiver> |
| struct set_value_member< |
| boost::asio::execution::detail::submit_receiver_wrapper< |
| Sender, Receiver>, |
| void()> |
| { |
| BOOST_ASIO_STATIC_CONSTEXPR(bool, is_valid = true); |
| BOOST_ASIO_STATIC_CONSTEXPR(bool, is_noexcept = |
| boost::asio::execution::is_nothrow_receiver_of<Receiver>::value); |
| typedef void result_type; |
| }; |
| |
| #define BOOST_ASIO_PRIVATE_SUBMIT_RECEIVER_TRAIT_DEF(n) \ |
| template <typename Sender, typename Receiver, \ |
| BOOST_ASIO_VARIADIC_TPARAMS(n)> \ |
| struct set_value_member< \ |
| boost::asio::execution::detail::submit_receiver_wrapper< \ |
| Sender, Receiver>, \ |
| void(BOOST_ASIO_VARIADIC_TARGS(n))> \ |
| { \ |
| BOOST_ASIO_STATIC_CONSTEXPR(bool, is_valid = true); \ |
| BOOST_ASIO_STATIC_CONSTEXPR(bool, is_noexcept = \ |
| (boost::asio::execution::is_nothrow_receiver_of<Receiver, \ |
| BOOST_ASIO_VARIADIC_TARGS(n)>::value)); \ |
| typedef void result_type; \ |
| }; \ |
| /**/ |
| BOOST_ASIO_VARIADIC_GENERATE(BOOST_ASIO_PRIVATE_SUBMIT_RECEIVER_TRAIT_DEF) |
| #undef BOOST_ASIO_PRIVATE_SUBMIT_RECEIVER_TRAIT_DEF |
| |
| #endif // defined(BOOST_ASIO_HAS_VARIADIC_TEMPLATES) |
| |
| #endif // !defined(BOOST_ASIO_HAS_DEDUCED_SET_VALUE_MEMBER_TRAIT) |
| |
| #if !defined(BOOST_ASIO_HAS_DEDUCED_SET_ERROR_MEMBER_TRAIT) |
| |
| template <typename Sender, typename Receiver, typename E> |
| struct set_error_member< |
| boost::asio::execution::detail::submit_receiver_wrapper< |
| Sender, Receiver>, E> |
| { |
| BOOST_ASIO_STATIC_CONSTEXPR(bool, is_valid = true); |
| BOOST_ASIO_STATIC_CONSTEXPR(bool, is_noexcept = true); |
| typedef void result_type; |
| }; |
| |
| #endif // !defined(BOOST_ASIO_HAS_DEDUCED_SET_ERROR_MEMBER_TRAIT) |
| |
| #if !defined(BOOST_ASIO_HAS_DEDUCED_SET_DONE_MEMBER_TRAIT) |
| |
| template <typename Sender, typename Receiver> |
| struct set_done_member< |
| boost::asio::execution::detail::submit_receiver_wrapper< |
| Sender, Receiver> > |
| { |
| BOOST_ASIO_STATIC_CONSTEXPR(bool, is_valid = true); |
| BOOST_ASIO_STATIC_CONSTEXPR(bool, is_noexcept = true); |
| typedef void result_type; |
| }; |
| |
| #endif // !defined(BOOST_ASIO_HAS_DEDUCED_SET_DONE_MEMBER_TRAIT) |
| |
| } // namespace traits |
| } // namespace asio |
| } // namespace boost |
| |
| #include <boost/asio/detail/pop_options.hpp> |
| |
| #endif // BOOST_ASIO_EXECUTION_DETAIL_SUBMIT_RECEIVER_HPP |