2025-03-04 15:17:10 +08:00

215 lines
7.5 KiB
C++

//
// experimental/impl/use_coro.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2021-2023 Klemens D. Morgenstern
// (klemens dot morgenstern at gmx dot net)
//
// 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_EXPERIMENTAL_IMPL_USE_CORO_HPP
#define ASIO_EXPERIMENTAL_IMPL_USE_CORO_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include "asio/deferred.hpp"
#include "asio/experimental/coro.hpp"
#include "asio/detail/push_options.hpp"
namespace asio {
#if !defined(GENERATING_DOCUMENTATION)
template <typename Allocator, typename R>
struct async_result<experimental::use_coro_t<Allocator>, R()>
{
template <typename Initiation, typename... InitArgs>
static auto initiate_impl(Initiation initiation,
std::allocator_arg_t, Allocator, InitArgs... args)
-> experimental::coro<void() noexcept, void,
asio::associated_executor_t<Initiation>, Allocator>
{
co_await deferred_async_operation<R(), Initiation, InitArgs...>(
deferred_init_tag{}, std::move(initiation), std::move(args)...);
}
template <typename... InitArgs>
static auto initiate_impl(asio::detail::initiation_archetype<R()>,
std::allocator_arg_t, Allocator, InitArgs... args)
-> experimental::coro<void(), void,
asio::any_io_executor, Allocator>;
template <typename Initiation, typename... InitArgs>
static auto initiate(Initiation initiation,
experimental::use_coro_t<Allocator> tk, InitArgs&&... args)
{
return initiate_impl(std::move(initiation), std::allocator_arg,
tk.get_allocator(), std::forward<InitArgs>(args)...);
}
};
template <typename Allocator, typename R>
struct async_result<
experimental::use_coro_t<Allocator>, R(asio::error_code)>
{
template <typename Initiation, typename... InitArgs>
static auto initiate_impl(Initiation initiation,
std::allocator_arg_t, Allocator, InitArgs... args)
-> experimental::coro<void() noexcept, void,
asio::associated_executor_t<Initiation>, Allocator>
{
co_await deferred_async_operation<
R(asio::error_code), Initiation, InitArgs...>(
deferred_init_tag{}, std::move(initiation), std::move(args)...);
}
template <typename... InitArgs>
static auto initiate_impl(
asio::detail::initiation_archetype<R(asio::error_code)>,
std::allocator_arg_t, Allocator, InitArgs... args)
-> experimental::coro<void(), void,
asio::any_io_executor, Allocator>;
template <typename Initiation, typename... InitArgs>
static auto initiate(Initiation initiation,
experimental::use_coro_t<Allocator> tk, InitArgs&&... args)
{
return initiate_impl(std::move(initiation), std::allocator_arg,
tk.get_allocator(), std::forward<InitArgs>(args)...);
}
};
template <typename Allocator, typename R>
struct async_result<
experimental::use_coro_t<Allocator>, R(std::exception_ptr)>
{
template <typename Initiation, typename... InitArgs>
static auto initiate_impl(Initiation initiation,
std::allocator_arg_t, Allocator, InitArgs... args)
-> experimental::coro<void(), void,
asio::associated_executor_t<Initiation>, Allocator>
{
co_await deferred_async_operation<
R(std::exception_ptr), Initiation, InitArgs...>(
deferred_init_tag{}, std::move(initiation), std::move(args)...);
}
template <typename... InitArgs>
static auto initiate_impl(
asio::detail::initiation_archetype<R(std::exception_ptr)>,
std::allocator_arg_t, Allocator, InitArgs... args)
-> experimental::coro<void(), void,
asio::any_io_executor, Allocator>;
template <typename Initiation, typename... InitArgs>
static auto initiate(Initiation initiation,
experimental::use_coro_t<Allocator> tk, InitArgs&&... args)
{
return initiate_impl(std::move(initiation), std::allocator_arg,
tk.get_allocator(), std::forward<InitArgs>(args)...);
}
};
template <typename Allocator, typename R, typename T>
struct async_result<experimental::use_coro_t<Allocator>, R(T)>
{
template <typename Initiation, typename... InitArgs>
static auto initiate_impl(Initiation initiation,
std::allocator_arg_t, Allocator, InitArgs... args)
-> experimental::coro<void() noexcept, T,
asio::associated_executor_t<Initiation>, Allocator>
{
co_return co_await deferred_async_operation<R(T), Initiation, InitArgs...>(
deferred_init_tag{}, std::move(initiation), std::move(args)...);
}
template <typename... InitArgs>
static auto initiate_impl(asio::detail::initiation_archetype<R(T)>,
std::allocator_arg_t, Allocator, InitArgs... args)
-> experimental::coro<void() noexcept, T,
asio::any_io_executor, Allocator>;
template <typename Initiation, typename... InitArgs>
static auto initiate(Initiation initiation,
experimental::use_coro_t<Allocator> tk, InitArgs&&... args)
{
return initiate_impl(std::move(initiation), std::allocator_arg,
tk.get_allocator(), std::forward<InitArgs>(args)...);
}
};
template <typename Allocator, typename R, typename T>
struct async_result<
experimental::use_coro_t<Allocator>, R(asio::error_code, T)>
{
template <typename Initiation, typename... InitArgs>
static auto initiate_impl(Initiation initiation,
std::allocator_arg_t, Allocator, InitArgs... args)
-> experimental::coro<void(), T,
asio::associated_executor_t<Initiation>, Allocator>
{
co_return co_await deferred_async_operation<
R(asio::error_code, T), Initiation, InitArgs...>(
deferred_init_tag{}, std::move(initiation), std::move(args)...);
}
template <typename... InitArgs>
static auto initiate_impl(
asio::detail::initiation_archetype<
R(asio::error_code, T)>,
std::allocator_arg_t, Allocator, InitArgs... args)
-> experimental::coro<void(), T, asio::any_io_executor, Allocator>;
template <typename Initiation, typename... InitArgs>
static auto initiate(Initiation initiation,
experimental::use_coro_t<Allocator> tk, InitArgs&&... args)
{
return initiate_impl(std::move(initiation), std::allocator_arg,
tk.get_allocator(), std::forward<InitArgs>(args)...);
}
};
template <typename Allocator, typename R, typename T>
struct async_result<
experimental::use_coro_t<Allocator>, R(std::exception_ptr, T)>
{
template <typename Initiation, typename... InitArgs>
static auto initiate_impl(Initiation initiation,
std::allocator_arg_t, Allocator, InitArgs... args)
-> experimental::coro<void(), T,
asio::associated_executor_t<Initiation>, Allocator>
{
co_return co_await deferred_async_operation<
R(std::exception_ptr, T), Initiation, InitArgs...>(
deferred_init_tag{}, std::move(initiation), std::move(args)...);
}
template <typename... InitArgs>
static auto initiate_impl(
asio::detail::initiation_archetype<R(std::exception_ptr, T)>,
std::allocator_arg_t, Allocator, InitArgs... args)
-> experimental::coro<void(), T, asio::any_io_executor, Allocator>;
template <typename Initiation, typename... InitArgs>
static auto initiate(Initiation initiation,
experimental::use_coro_t<Allocator> tk, InitArgs&&... args)
{
return initiate_impl(std::move(initiation), std::allocator_arg,
tk.get_allocator(), std::forward<InitArgs>(args)...);
}
};
#endif // !defined(GENERATING_DOCUMENTATION)
} // namespace asio
#include "asio/detail/pop_options.hpp"
#endif // ASIO_EXPERIMENTAL_IMPL_USE_CORO_HPP