262 lines
7.7 KiB
C++
262 lines
7.7 KiB
C++
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//
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// execution/detail/bulk_sender.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_EXECUTION_DETAIL_BULK_SENDER_HPP
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#define ASIO_EXECUTION_DETAIL_BULK_SENDER_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/detail/type_traits.hpp"
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#include "asio/execution/connect.hpp"
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#include "asio/execution/executor.hpp"
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#include "asio/execution/set_done.hpp"
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#include "asio/execution/set_error.hpp"
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#include "asio/traits/connect_member.hpp"
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#include "asio/traits/set_done_member.hpp"
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#include "asio/traits/set_error_member.hpp"
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#include "asio/traits/set_value_member.hpp"
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#include "asio/detail/push_options.hpp"
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namespace asio {
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namespace execution {
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namespace detail {
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template <typename Receiver, typename Function, typename Number, typename Index>
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struct bulk_receiver
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{
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typename remove_cvref<Receiver>::type receiver_;
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typename decay<Function>::type f_;
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typename decay<Number>::type n_;
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template <typename R, typename F, typename N>
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explicit bulk_receiver(ASIO_MOVE_ARG(R) r,
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ASIO_MOVE_ARG(F) f, ASIO_MOVE_ARG(N) n)
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: receiver_(ASIO_MOVE_CAST(R)(r)),
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f_(ASIO_MOVE_CAST(F)(f)),
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n_(ASIO_MOVE_CAST(N)(n))
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{
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}
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void set_value()
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{
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for (Index i = 0; i < n_; ++i)
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f_(i);
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execution::set_value(
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ASIO_MOVE_OR_LVALUE(
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typename remove_cvref<Receiver>::type)(receiver_));
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}
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template <typename Error>
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void set_error(ASIO_MOVE_ARG(Error) e) ASIO_NOEXCEPT
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{
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execution::set_error(
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ASIO_MOVE_OR_LVALUE(
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typename remove_cvref<Receiver>::type)(receiver_),
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ASIO_MOVE_CAST(Error)(e));
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}
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void set_done() ASIO_NOEXCEPT
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{
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execution::set_done(
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ASIO_MOVE_OR_LVALUE(
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typename remove_cvref<Receiver>::type)(receiver_));
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}
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};
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template <typename Sender, typename Receiver,
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typename Function, typename Number>
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struct bulk_receiver_traits
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{
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typedef bulk_receiver<
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Receiver, Function, Number,
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typename execution::executor_index<
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typename remove_cvref<Sender>::type
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>::type
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> type;
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#if defined(ASIO_HAS_MOVE)
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typedef type arg_type;
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#else // defined(ASIO_HAS_MOVE)
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typedef const type& arg_type;
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#endif // defined(ASIO_HAS_MOVE)
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};
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template <typename Sender, typename Function, typename Number>
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struct bulk_sender : sender_base
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{
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typename remove_cvref<Sender>::type sender_;
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typename decay<Function>::type f_;
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typename decay<Number>::type n_;
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template <typename S, typename F, typename N>
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explicit bulk_sender(ASIO_MOVE_ARG(S) s,
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ASIO_MOVE_ARG(F) f, ASIO_MOVE_ARG(N) n)
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: sender_(ASIO_MOVE_CAST(S)(s)),
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f_(ASIO_MOVE_CAST(F)(f)),
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n_(ASIO_MOVE_CAST(N)(n))
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{
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}
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template <typename Receiver>
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typename connect_result<
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ASIO_MOVE_OR_LVALUE_TYPE(typename remove_cvref<Sender>::type),
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typename bulk_receiver_traits<
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Sender, Receiver, Function, Number
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>::arg_type
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>::type connect(ASIO_MOVE_ARG(Receiver) r,
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typename enable_if<
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can_connect<
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typename remove_cvref<Sender>::type,
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typename bulk_receiver_traits<
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Sender, Receiver, Function, Number
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>::arg_type
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>::value
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>::type* = 0) ASIO_RVALUE_REF_QUAL ASIO_NOEXCEPT
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{
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return execution::connect(
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ASIO_MOVE_OR_LVALUE(typename remove_cvref<Sender>::type)(sender_),
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typename bulk_receiver_traits<Sender, Receiver, Function, Number>::type(
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ASIO_MOVE_CAST(Receiver)(r),
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ASIO_MOVE_CAST(typename decay<Function>::type)(f_),
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ASIO_MOVE_CAST(typename decay<Number>::type)(n_)));
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}
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template <typename Receiver>
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typename connect_result<
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const typename remove_cvref<Sender>::type&,
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typename bulk_receiver_traits<
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Sender, Receiver, Function, Number
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>::arg_type
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>::type connect(ASIO_MOVE_ARG(Receiver) r,
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typename enable_if<
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can_connect<
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const typename remove_cvref<Sender>::type&,
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typename bulk_receiver_traits<
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Sender, Receiver, Function, Number
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>::arg_type
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>::value
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>::type* = 0) const ASIO_LVALUE_REF_QUAL ASIO_NOEXCEPT
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{
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return execution::connect(sender_,
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typename bulk_receiver_traits<Sender, Receiver, Function, Number>::type(
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ASIO_MOVE_CAST(Receiver)(r), f_, n_));
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}
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};
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} // namespace detail
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} // namespace execution
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namespace traits {
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#if !defined(ASIO_HAS_DEDUCED_SET_VALUE_MEMBER_TRAIT)
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template <typename Receiver, typename Function, typename Number, typename Index>
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struct set_value_member<
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execution::detail::bulk_receiver<Receiver, Function, Number, Index>,
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void()>
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{
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ASIO_STATIC_CONSTEXPR(bool, is_valid = true);
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ASIO_STATIC_CONSTEXPR(bool, is_noexcept = false);
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typedef void result_type;
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};
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#endif // !defined(ASIO_HAS_DEDUCED_SET_VALUE_MEMBER_TRAIT)
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#if !defined(ASIO_HAS_DEDUCED_SET_ERROR_MEMBER_TRAIT)
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template <typename Receiver, typename Function,
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typename Number, typename Index, typename Error>
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struct set_error_member<
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execution::detail::bulk_receiver<Receiver, Function, Number, Index>,
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Error>
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{
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ASIO_STATIC_CONSTEXPR(bool, is_valid = true);
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ASIO_STATIC_CONSTEXPR(bool, is_noexcept = true);
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typedef void result_type;
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};
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#endif // !defined(ASIO_HAS_DEDUCED_SET_ERROR_MEMBER_TRAIT)
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#if !defined(ASIO_HAS_DEDUCED_SET_DONE_MEMBER_TRAIT)
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template <typename Receiver, typename Function, typename Number, typename Index>
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struct set_done_member<
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execution::detail::bulk_receiver<Receiver, Function, Number, Index> >
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{
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ASIO_STATIC_CONSTEXPR(bool, is_valid = true);
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ASIO_STATIC_CONSTEXPR(bool, is_noexcept = true);
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typedef void result_type;
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};
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#endif // !defined(ASIO_HAS_DEDUCED_SET_DONE_MEMBER_TRAIT)
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#if !defined(ASIO_HAS_DEDUCED_CONNECT_MEMBER_TRAIT)
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template <typename Sender, typename Function,
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typename Number, typename Receiver>
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struct connect_member<
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execution::detail::bulk_sender<Sender, Function, Number>,
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Receiver,
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typename enable_if<
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execution::can_connect<
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ASIO_MOVE_OR_LVALUE_TYPE(typename remove_cvref<Sender>::type),
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typename execution::detail::bulk_receiver_traits<
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Sender, Receiver, Function, Number
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>::arg_type
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>::value
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>::type>
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{
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ASIO_STATIC_CONSTEXPR(bool, is_valid = true);
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ASIO_STATIC_CONSTEXPR(bool, is_noexcept = false);
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typedef typename execution::connect_result<
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ASIO_MOVE_OR_LVALUE_TYPE(typename remove_cvref<Sender>::type),
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typename execution::detail::bulk_receiver_traits<
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Sender, Receiver, Function, Number
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>::arg_type
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>::type result_type;
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};
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template <typename Sender, typename Function,
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typename Number, typename Receiver>
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struct connect_member<
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const execution::detail::bulk_sender<Sender, Function, Number>,
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Receiver,
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typename enable_if<
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execution::can_connect<
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const typename remove_cvref<Sender>::type&,
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typename execution::detail::bulk_receiver_traits<
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Sender, Receiver, Function, Number
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>::arg_type
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>::value
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>::type>
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{
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ASIO_STATIC_CONSTEXPR(bool, is_valid = true);
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ASIO_STATIC_CONSTEXPR(bool, is_noexcept = false);
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typedef typename execution::connect_result<
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const typename remove_cvref<Sender>::type&,
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typename execution::detail::bulk_receiver_traits<
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Sender, Receiver, Function, Number
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>::arg_type
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>::type result_type;
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};
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#endif // !defined(ASIO_HAS_DEDUCED_CONNECT_MEMBER_TRAIT)
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} // namespace traits
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} // namespace asio
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#include "asio/detail/pop_options.hpp"
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#endif // ASIO_EXECUTION_DETAIL_BULK_SENDER_HPP
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