mirror of
https://github.com/30hours/blah2.git
synced 2024-11-08 12:25:42 +00:00
91 lines
2.2 KiB
C++
91 lines
2.2 KiB
C++
//
|
|
// execution/scheduler.hpp
|
|
// ~~~~~~~~~~~~~~~~~~~~~~~
|
|
//
|
|
// Copyright (c) 2003-2022 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_EXECUTION_SCHEDULER_HPP
|
|
#define ASIO_EXECUTION_SCHEDULER_HPP
|
|
|
|
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
|
|
# pragma once
|
|
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
|
|
|
|
#include "asio/detail/config.hpp"
|
|
|
|
#if !defined(ASIO_NO_DEPRECATED)
|
|
|
|
#include "asio/detail/type_traits.hpp"
|
|
#include "asio/execution/schedule.hpp"
|
|
#include "asio/traits/equality_comparable.hpp"
|
|
|
|
#include "asio/detail/push_options.hpp"
|
|
|
|
namespace asio {
|
|
namespace execution {
|
|
namespace detail {
|
|
|
|
template <typename T>
|
|
struct is_scheduler_base :
|
|
integral_constant<bool,
|
|
is_copy_constructible<typename remove_cvref<T>::type>::value
|
|
&& traits::equality_comparable<typename remove_cvref<T>::type>::is_valid
|
|
>
|
|
{
|
|
};
|
|
|
|
} // namespace detail
|
|
|
|
/// The is_scheduler trait detects whether a type T satisfies the
|
|
/// execution::scheduler concept.
|
|
/**
|
|
* Class template @c is_scheduler is a type trait that is derived from @c
|
|
* true_type if the type @c T meets the concept definition for a scheduler for
|
|
* error type @c E, otherwise @c false_type.
|
|
*/
|
|
template <typename T>
|
|
struct is_scheduler :
|
|
#if defined(GENERATING_DOCUMENTATION)
|
|
integral_constant<bool, automatically_determined>
|
|
#else // defined(GENERATING_DOCUMENTATION)
|
|
conditional<
|
|
can_schedule<T>::value,
|
|
detail::is_scheduler_base<T>,
|
|
false_type
|
|
>::type
|
|
#endif // defined(GENERATING_DOCUMENTATION)
|
|
{
|
|
};
|
|
|
|
#if defined(ASIO_HAS_VARIABLE_TEMPLATES)
|
|
|
|
template <typename T>
|
|
ASIO_CONSTEXPR const bool is_scheduler_v = is_scheduler<T>::value;
|
|
|
|
#endif // defined(ASIO_HAS_VARIABLE_TEMPLATES)
|
|
|
|
#if defined(ASIO_HAS_CONCEPTS)
|
|
|
|
template <typename T>
|
|
ASIO_CONCEPT scheduler = is_scheduler<T>::value;
|
|
|
|
#define ASIO_EXECUTION_SCHEDULER ::asio::execution::scheduler
|
|
|
|
#else // defined(ASIO_HAS_CONCEPTS)
|
|
|
|
#define ASIO_EXECUTION_SCHEDULER typename
|
|
|
|
#endif // defined(ASIO_HAS_CONCEPTS)
|
|
|
|
} // namespace execution
|
|
} // namespace asio
|
|
|
|
#include "asio/detail/pop_options.hpp"
|
|
|
|
#endif // !defined(ASIO_NO_DEPRECATED)
|
|
|
|
#endif // ASIO_EXECUTION_SCHEDULER_HPP
|