/usr/include/boost/asio/execution
Edit: /usr/include/boost/asio/execution/executor.hpp (7069B)
//
// execution/executor.hpp
// ~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2020 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_EXECUTOR_HPP
#define BOOST_ASIO_EXECUTION_EXECUTOR_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include
#include
#include
#include
#include
#if defined(BOOST_ASIO_HAS_DEDUCED_EXECUTE_FREE_TRAIT) \
&& defined(BOOST_ASIO_HAS_DEDUCED_EXECUTE_MEMBER_TRAIT) \
&& defined(BOOST_ASIO_HAS_DEDUCED_EQUALITY_COMPARABLE_TRAIT)
# define BOOST_ASIO_HAS_DEDUCED_EXECUTION_IS_EXECUTOR_TRAIT 1
#endif // defined(BOOST_ASIO_HAS_DEDUCED_EXECUTE_FREE_TRAIT)
// && defined(BOOST_ASIO_HAS_DEDUCED_EXECUTE_MEMBER_TRAIT)
// && defined(BOOST_ASIO_HAS_DEDUCED_EQUALITY_COMPARABLE_TRAIT)
#include
namespace boost {
namespace asio {
namespace execution {
namespace detail {
template
struct is_executor_of_impl_base :
integral_constant::type&()>::type
>::type::value
&& is_constructible::type, F>::value
&& is_move_constructible::type>::value
#if defined(BOOST_ASIO_HAS_NOEXCEPT)
&& is_nothrow_copy_constructible::value
&& is_nothrow_destructible::value
#else // defined(BOOST_ASIO_HAS_NOEXCEPT)
&& is_copy_constructible::value
&& is_destructible::value
#endif // defined(BOOST_ASIO_HAS_NOEXCEPT)
&& traits::equality_comparable::is_valid
&& traits::equality_comparable::is_noexcept
>
{
};
template
struct is_executor_of_impl :
conditional<
can_execute::value,
is_executor_of_impl_base,
false_type
>::type
{
};
template
struct executor_shape
{
typedef std::size_t type;
};
template
struct executor_shape::type>
{
typedef typename T::shape_type type;
};
template
struct executor_index
{
typedef Default type;
};
template
struct executor_index::type>
{
typedef typename T::index_type type;
};
} // namespace detail
/// The is_executor trait detects whether a type T satisfies the
/// execution::executor concept.
/**
* Class template @c is_executor is a UnaryTypeTrait that is derived from @c
* true_type if the type @c T meets the concept definition for an executor,
* otherwise @c false_type.
*/
template
struct is_executor :
#if defined(GENERATING_DOCUMENTATION)
integral_constant
#else // defined(GENERATING_DOCUMENTATION)
detail::is_executor_of_impl
#endif // defined(GENERATING_DOCUMENTATION)
{
};
#if defined(BOOST_ASIO_HAS_VARIABLE_TEMPLATES)
template
BOOST_ASIO_CONSTEXPR const bool is_executor_v = is_executor::value;
#endif // defined(BOOST_ASIO_HAS_VARIABLE_TEMPLATES)
#if defined(BOOST_ASIO_HAS_CONCEPTS)
template
BOOST_ASIO_CONCEPT executor = is_executor::value;
#define BOOST_ASIO_EXECUTION_EXECUTOR ::boost::asio::execution::executor
#else // defined(BOOST_ASIO_HAS_CONCEPTS)
#define BOOST_ASIO_EXECUTION_EXECUTOR typename
#endif // defined(BOOST_ASIO_HAS_CONCEPTS)
/// The is_executor_of trait detects whether a type T satisfies the
/// execution::executor_of concept for some set of value arguments.
/**
* Class template @c is_executor_of is a type trait that is derived from @c
* true_type if the type @c T meets the concept definition for an executor
* that is invocable with a function object of type @c F, otherwise @c
* false_type.
*/
template
struct is_executor_of :
#if defined(GENERATING_DOCUMENTATION)
integral_constant
#else // defined(GENERATING_DOCUMENTATION)
integral_constant::value && detail::is_executor_of_impl::value
>
#endif // defined(GENERATING_DOCUMENTATION)
{
};
#if defined(BOOST_ASIO_HAS_VARIABLE_TEMPLATES)
template
BOOST_ASIO_CONSTEXPR const bool is_executor_of_v =
is_executor_of::value;
#endif // defined(BOOST_ASIO_HAS_VARIABLE_TEMPLATES)
#if defined(BOOST_ASIO_HAS_CONCEPTS)
template
BOOST_ASIO_CONCEPT executor_of = is_executor_of::value;
#define BOOST_ASIO_EXECUTION_EXECUTOR_OF(f) \
::boost::asio::execution::executor_of
#else // defined(BOOST_ASIO_HAS_CONCEPTS)
#define BOOST_ASIO_EXECUTION_EXECUTOR_OF typename
#endif // defined(BOOST_ASIO_HAS_CONCEPTS)
/// The executor_shape trait detects the type used by an executor to represent
/// the shape of a bulk operation.
/**
* Class template @c executor_shape is a type trait with a nested type alias
* @c type whose type is @c T::shape_type if @c T::shape_type is valid,
* otherwise @c std::size_t.
*/
template
struct executor_shape
#if !defined(GENERATING_DOCUMENTATION)
: detail::executor_shape
#endif // !defined(GENERATING_DOCUMENTATION)
{
#if defined(GENERATING_DOCUMENTATION)
/// @c T::shape_type if @c T::shape_type is valid, otherwise @c std::size_t.
typedef automatically_determined type;
#endif // defined(GENERATING_DOCUMENTATION)
};
#if defined(BOOST_ASIO_HAS_ALIAS_TEMPLATES)
template
using executor_shape_t = typename executor_shape::type;
#endif // defined(BOOST_ASIO_HAS_ALIAS_TEMPLATES)
/// The executor_index trait detects the type used by an executor to represent
/// an index within a bulk operation.
/**
* Class template @c executor_index is a type trait with a nested type alias
* @c type whose type is @c T::index_type if @c T::index_type is valid,
* otherwise @c executor_shape_t.
*/
template
struct executor_index
#if !defined(GENERATING_DOCUMENTATION)
: detail::executor_index::type>
#endif // !defined(GENERATING_DOCUMENTATION)
{
#if defined(GENERATING_DOCUMENTATION)
/// @c T::index_type if @c T::index_type is valid, otherwise
/// @c executor_shape_t.
typedef automatically_determined type;
#endif // defined(GENERATING_DOCUMENTATION)
};
#if defined(BOOST_ASIO_HAS_ALIAS_TEMPLATES)
template
using executor_index_t = typename executor_index::type;
#endif // defined(BOOST_ASIO_HAS_ALIAS_TEMPLATES)
} // namespace execution
} // namespace asio
} // namespace boost
#include
#endif // BOOST_ASIO_EXECUTION_EXECUTOR_HPP