FM / execution

/usr/include/boost/asio/execution

Name	Size	Mode	Actions
detail/	-	0755	rm
impl/	-	0755	rm
allocator.hpp	7823	0644	edit dl rm
any_executor.hpp	70761	0644	edit dl rm
bad_executor.hpp	1310	0644	edit dl rm
blocking.hpp	41336	0644	edit dl rm
blocking_adaptation.hpp	33522	0644	edit dl rm
bulk_execute.hpp	12972	0644	edit dl rm
bulk_guarantee.hpp	32421	0644	edit dl rm
connect.hpp	14688	0644	edit dl rm
context.hpp	5574	0644	edit dl rm
context_as.hpp	6328	0644	edit dl rm
execute.hpp	7579	0644	edit dl rm
executor.hpp	7069	0644	edit dl rm
invocable_archetype.hpp	2037	0644	edit dl rm
mapping.hpp	28989	0644	edit dl rm
occupancy.hpp	5501	0644	edit dl rm
operation_state.hpp	2750	0644	edit dl rm
outstanding_work.hpp	23123	0644	edit dl rm
prefer_only.hpp	9569	0644	edit dl rm
receiver.hpp	9669	0644	edit dl rm
receiver_invocation_error.hpp	1415	0644	edit dl rm
relationship.hpp	22518	0644	edit dl rm
schedule.hpp	7545	0644	edit dl rm
scheduler.hpp	2374	0644	edit dl rm
sender.hpp	8539	0644	edit dl rm
set_done.hpp	6640	0644	edit dl rm
set_error.hpp	7367	0644	edit dl rm
set_value.hpp	15285	0644	edit dl rm
start.hpp	6218	0644	edit dl rm
submit.hpp	13478	0644	edit dl rm

Edit: /usr/include/boost/asio/execution/outstanding_work.hpp (23123B)

#ifndef BOOST_ASIO_EXECUTION_OUTSTANDING_WORK_HPP
#define BOOST_ASIO_EXECUTION_OUTSTANDING_WORK_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/execution/executor.hpp>
#include <boost/asio/execution/scheduler.hpp>
#include <boost/asio/execution/sender.hpp>
#include <boost/asio/is_applicable_property.hpp>
#include <boost/asio/query.hpp>
#include <boost/asio/traits/query_free.hpp>
#include <boost/asio/traits/query_member.hpp>
#include <boost/asio/traits/query_static_constexpr_member.hpp>
#include <boost/asio/traits/static_query.hpp>
#include <boost/asio/traits/static_require.hpp>

#include <boost/asio/detail/push_options.hpp>

namespace boost {
namespace asio {

#if defined(GENERATING_DOCUMENTATION)

namespace execution {

/// A property to describe whether task submission is likely in the future.
struct outstanding_work_t
{
 /// The outstanding_work_t property applies to executors, senders, and
 /// schedulers.
 template <typename T>
 static constexpr bool is_applicable_property_v =
 is_executor_v<T> || is_sender_v<T> || is_scheduler_v<T>;

/// The top-level outstanding_work_t property cannot be required.
  static constexpr bool is_requirable = false;

/// The top-level outstanding_work_t property cannot be preferred.
  static constexpr bool is_preferable = false;

/// The type returned by queries against an @c any_executor.
  typedef outstanding_work_t polymorphic_query_result_type;

/// A sub-property that indicates that the executor does not represent likely
 /// future submission of a function object.
 struct untracked_t
 {
 /// The outstanding_work_t::untracked_t property applies to executors,
 /// senders, and schedulers.
 template <typename T>
 static constexpr bool is_applicable_property_v =
 is_executor_v<T> || is_sender_v<T> || is_scheduler_v<T>;

/// The outstanding_work_t::untracked_t property can be required.
    static constexpr bool is_requirable = true;

/// The outstanding_work_t::untracked_t property can be preferred.
    static constexpr bool is_preferable = true;

/// The type returned by queries against an @c any_executor.
    typedef outstanding_work_t polymorphic_query_result_type;

/// Default constructor.
    constexpr untracked_t();

/// Get the value associated with a property object.
    /**
     * @returns untracked_t();
     */
    static constexpr outstanding_work_t value();
  };

/// A sub-property that indicates that the executor represents likely
 /// future submission of a function object.
 struct tracked_t
 {
 /// The outstanding_work_t::untracked_t property applies to executors,
 /// senders, and schedulers.
 template <typename T>
 static constexpr bool is_applicable_property_v =
 is_executor_v<T> || is_sender_v<T> || is_scheduler_v<T>;

/// The outstanding_work_t::tracked_t property can be required.
    static constexpr bool is_requirable = true;

/// The outstanding_work_t::tracked_t property can be preferred.
    static constexpr bool is_preferable = true;

/// The type returned by queries against an @c any_executor.
    typedef outstanding_work_t polymorphic_query_result_type;

/// Default constructor.
    constexpr tracked_t();

/// Get the value associated with a property object.
    /**
     * @returns tracked_t();
     */
    static constexpr outstanding_work_t value();
  };

/// A special value used for accessing the outstanding_work_t::untracked_t
  /// property.
  static constexpr untracked_t untracked;

/// A special value used for accessing the outstanding_work_t::tracked_t
  /// property.
  static constexpr tracked_t tracked;

/// Default constructor.
  constexpr outstanding_work_t();

/// Construct from a sub-property value.
  constexpr outstanding_work_t(untracked_t);

/// Construct from a sub-property value.
  constexpr outstanding_work_t(tracked_t);

/// Compare property values for equality.
  friend constexpr bool operator==(
      const outstanding_work_t& a, const outstanding_work_t& b) noexcept;

/// Compare property values for inequality.
  friend constexpr bool operator!=(
      const outstanding_work_t& a, const outstanding_work_t& b) noexcept;
};

/// A special value used for accessing the outstanding_work_t property.
constexpr outstanding_work_t outstanding_work;

} // namespace execution

#else // defined(GENERATING_DOCUMENTATION)

namespace execution {
namespace detail {
namespace outstanding_work {

template <int I> struct untracked_t;
template <int I> struct tracked_t;

} // namespace outstanding_work

template <int I = 0>
struct outstanding_work_t
{
#if defined(BOOST_ASIO_HAS_VARIABLE_TEMPLATES)
 template <typename T>
 BOOST_ASIO_STATIC_CONSTEXPR(bool,
 is_applicable_property_v = is_executor<T>::value
 || is_sender<T>::value || is_scheduler<T>::value);
#endif // defined(BOOST_ASIO_HAS_VARIABLE_TEMPLATES)

BOOST_ASIO_STATIC_CONSTEXPR(bool, is_requirable = false);
  BOOST_ASIO_STATIC_CONSTEXPR(bool, is_preferable = false);
  typedef outstanding_work_t polymorphic_query_result_type;

typedef detail::outstanding_work::untracked_t untracked_t;
 typedef detail::outstanding_work::tracked_t tracked_t;

BOOST_ASIO_CONSTEXPR outstanding_work_t()
    : value_(-1)
  {
  }

BOOST_ASIO_CONSTEXPR outstanding_work_t(untracked_t)
    : value_(0)
  {
  }

BOOST_ASIO_CONSTEXPR outstanding_work_t(tracked_t)
    : value_(1)
  {
  }

#if defined(BOOST_ASIO_HAS_DEDUCED_STATIC_QUERY_TRAIT) \
 && defined(BOOST_ASIO_HAS_SFINAE_VARIABLE_TEMPLATES)
 template <typename T>
 static BOOST_ASIO_CONSTEXPR
 typename traits::query_static_constexpr_member<
 T, outstanding_work_t>::result_type
 static_query()
 BOOST_ASIO_NOEXCEPT_IF((
 traits::query_static_constexpr_member<
 T, outstanding_work_t
 >::is_noexcept))
 {
 return traits::query_static_constexpr_member<
 T, outstanding_work_t>::value();
 }

template <typename T>
 static BOOST_ASIO_CONSTEXPR
 typename traits::static_query<T, untracked_t>::result_type
 static_query(
 typename enable_if<
 !traits::query_static_constexpr_member<
 T, outstanding_work_t>::is_valid
 && !traits::query_member<T, outstanding_work_t>::is_valid
 && traits::static_query<T, untracked_t>::is_valid
 >::type* = 0) BOOST_ASIO_NOEXCEPT
 {
 return traits::static_query<T, untracked_t>::value();
 }

template <typename T>
 static BOOST_ASIO_CONSTEXPR
 typename traits::static_query<T, tracked_t>::result_type
 static_query(
 typename enable_if<
 !traits::query_static_constexpr_member<
 T, outstanding_work_t>::is_valid
 && !traits::query_member<T, outstanding_work_t>::is_valid
 && !traits::static_query<T, untracked_t>::is_valid
 && traits::static_query<T, tracked_t>::is_valid
 >::type* = 0) BOOST_ASIO_NOEXCEPT
 {
 return traits::static_query<T, tracked_t>::value();
 }

template <typename E,
 typename T = decltype(outstanding_work_t::static_query<E>())>
 static BOOST_ASIO_CONSTEXPR const T static_query_v
 = outstanding_work_t::static_query<E>();
#endif // defined(BOOST_ASIO_HAS_DEDUCED_STATIC_QUERY_TRAIT)
 // && defined(BOOST_ASIO_HAS_SFINAE_VARIABLE_TEMPLATES)

friend BOOST_ASIO_CONSTEXPR bool operator==(
      const outstanding_work_t& a, const outstanding_work_t& b)
  {
    return a.value_ == b.value_;
  }

friend BOOST_ASIO_CONSTEXPR bool operator!=(
      const outstanding_work_t& a, const outstanding_work_t& b)
  {
    return a.value_ != b.value_;
  }

struct convertible_from_outstanding_work_t
  {
    BOOST_ASIO_CONSTEXPR convertible_from_outstanding_work_t(outstanding_work_t)
    {
    }
  };

template <typename Executor>
 friend BOOST_ASIO_CONSTEXPR outstanding_work_t query(
 const Executor& ex, convertible_from_outstanding_work_t,
 typename enable_if<
 can_query<const Executor&, untracked_t>::value
 >::type* = 0)
#if !defined(__clang__) // Clang crashes if noexcept is used here.
#if defined(BOOST_ASIO_MSVC) // Visual C++ wants the type to be qualified.
 BOOST_ASIO_NOEXCEPT_IF((
 is_nothrow_query<const Executor&,
 outstanding_work_t<>::untracked_t>::value))
#else // defined(BOOST_ASIO_MSVC)
 BOOST_ASIO_NOEXCEPT_IF((
 is_nothrow_query<const Executor&, untracked_t>::value))
#endif // defined(BOOST_ASIO_MSVC)
#endif // !defined(__clang__)
 {
 return boost::asio::query(ex, untracked_t());
 }

template <typename Executor>
 friend BOOST_ASIO_CONSTEXPR outstanding_work_t query(
 const Executor& ex, convertible_from_outstanding_work_t,
 typename enable_if<
 !can_query<const Executor&, untracked_t>::value
 && can_query<const Executor&, tracked_t>::value
 >::type* = 0)
#if !defined(__clang__) // Clang crashes if noexcept is used here.
#if defined(BOOST_ASIO_MSVC) // Visual C++ wants the type to be qualified.
 BOOST_ASIO_NOEXCEPT_IF((
 is_nothrow_query<const Executor&,
 outstanding_work_t<>::tracked_t>::value))
#else // defined(BOOST_ASIO_MSVC)
 BOOST_ASIO_NOEXCEPT_IF((
 is_nothrow_query<const Executor&, tracked_t>::value))
#endif // defined(BOOST_ASIO_MSVC)
#endif // !defined(__clang__)
 {
 return boost::asio::query(ex, tracked_t());
 }

BOOST_ASIO_STATIC_CONSTEXPR_DEFAULT_INIT(untracked_t, untracked);
  BOOST_ASIO_STATIC_CONSTEXPR_DEFAULT_INIT(tracked_t, tracked);

#if !defined(BOOST_ASIO_HAS_CONSTEXPR)
  static const outstanding_work_t instance;
#endif // !defined(BOOST_ASIO_HAS_CONSTEXPR)

private:
  int value_;
};

#if defined(BOOST_ASIO_HAS_DEDUCED_STATIC_QUERY_TRAIT) \
 && defined(BOOST_ASIO_HAS_SFINAE_VARIABLE_TEMPLATES)
template <int I> template <typename E, typename T>
const T outstanding_work_t::static_query_v;
#endif // defined(BOOST_ASIO_HAS_DEDUCED_STATIC_QUERY_TRAIT)
 // && defined(BOOST_ASIO_HAS_SFINAE_VARIABLE_TEMPLATES)

#if !defined(BOOST_ASIO_HAS_CONSTEXPR)
template <int I>
const outstanding_work_t outstanding_work_t::instance;
#endif

template <int I>
const typename outstanding_work_t::untracked_t
outstanding_work_t::untracked;

template <int I>
const typename outstanding_work_t::tracked_t
outstanding_work_t::tracked;

namespace outstanding_work {

template <int I = 0>
struct untracked_t
{
#if defined(BOOST_ASIO_HAS_VARIABLE_TEMPLATES)
 template <typename T>
 BOOST_ASIO_STATIC_CONSTEXPR(bool,
 is_applicable_property_v = is_executor<T>::value
 || is_sender<T>::value || is_scheduler<T>::value);
#endif // defined(BOOST_ASIO_HAS_VARIABLE_TEMPLATES)

BOOST_ASIO_STATIC_CONSTEXPR(bool, is_requirable = true);
 BOOST_ASIO_STATIC_CONSTEXPR(bool, is_preferable = true);
 typedef outstanding_work_t polymorphic_query_result_type;

BOOST_ASIO_CONSTEXPR untracked_t()
  {
  }

#if defined(BOOST_ASIO_HAS_DEDUCED_STATIC_QUERY_TRAIT) \
 && defined(BOOST_ASIO_HAS_SFINAE_VARIABLE_TEMPLATES)
 template <typename T>
 static BOOST_ASIO_CONSTEXPR
 typename traits::query_static_constexpr_member<T, untracked_t>::result_type
 static_query()
 BOOST_ASIO_NOEXCEPT_IF((
 traits::query_static_constexpr_member<T, untracked_t>::is_noexcept))
 {
 return traits::query_static_constexpr_member<T, untracked_t>::value();
 }

template <typename T>
 static BOOST_ASIO_CONSTEXPR untracked_t static_query(
 typename enable_if<
 !traits::query_static_constexpr_member<T, untracked_t>::is_valid
 && !traits::query_member<T, untracked_t>::is_valid
 && !traits::query_free<T, untracked_t>::is_valid
 && !can_query<T, tracked_t >::value
 >::type* = 0) BOOST_ASIO_NOEXCEPT
 {
 return untracked_t();
 }

template <typename E, typename T = decltype(untracked_t::static_query<E>())>
 static BOOST_ASIO_CONSTEXPR const T static_query_v
 = untracked_t::static_query<E>();
#endif // defined(BOOST_ASIO_HAS_DEDUCED_STATIC_QUERY_TRAIT)
 // && defined(BOOST_ASIO_HAS_SFINAE_VARIABLE_TEMPLATES)

static BOOST_ASIO_CONSTEXPR outstanding_work_t value()
 {
 return untracked_t();
 }

friend BOOST_ASIO_CONSTEXPR bool operator==(
      const untracked_t&, const untracked_t&)
  {
    return true;
  }

friend BOOST_ASIO_CONSTEXPR bool operator!=(
      const untracked_t&, const untracked_t&)
  {
    return false;
  }
};

#if defined(BOOST_ASIO_HAS_DEDUCED_STATIC_QUERY_TRAIT) \
 && defined(BOOST_ASIO_HAS_SFINAE_VARIABLE_TEMPLATES)
template <int I> template <typename E, typename T>
const T untracked_t::static_query_v;
#endif // defined(BOOST_ASIO_HAS_DEDUCED_STATIC_QUERY_TRAIT)
 // && defined(BOOST_ASIO_HAS_SFINAE_VARIABLE_TEMPLATES)

template <int I = 0>
struct tracked_t
{
#if defined(BOOST_ASIO_HAS_VARIABLE_TEMPLATES)
 template <typename T>
 BOOST_ASIO_STATIC_CONSTEXPR(bool,
 is_applicable_property_v = is_executor<T>::value
 || is_sender<T>::value || is_scheduler<T>::value);
#endif // defined(BOOST_ASIO_HAS_VARIABLE_TEMPLATES)

BOOST_ASIO_STATIC_CONSTEXPR(bool, is_requirable = true);
 BOOST_ASIO_STATIC_CONSTEXPR(bool, is_preferable = true);
 typedef outstanding_work_t polymorphic_query_result_type;

BOOST_ASIO_CONSTEXPR tracked_t()
  {
  }

#if defined(BOOST_ASIO_HAS_DEDUCED_STATIC_QUERY_TRAIT) \
 && defined(BOOST_ASIO_HAS_SFINAE_VARIABLE_TEMPLATES)
 template <typename T>
 static BOOST_ASIO_CONSTEXPR
 typename traits::query_static_constexpr_member<T, tracked_t>::result_type
 static_query()
 BOOST_ASIO_NOEXCEPT_IF((
 traits::query_static_constexpr_member<T, tracked_t>::is_noexcept))
 {
 return traits::query_static_constexpr_member<T, tracked_t>::value();
 }

template <typename E, typename T = decltype(tracked_t::static_query<E>())>
 static BOOST_ASIO_CONSTEXPR const T static_query_v
 = tracked_t::static_query<E>();
#endif // defined(BOOST_ASIO_HAS_DEDUCED_STATIC_QUERY_TRAIT)
 // && defined(BOOST_ASIO_HAS_SFINAE_VARIABLE_TEMPLATES)

static BOOST_ASIO_CONSTEXPR outstanding_work_t value()
 {
 return tracked_t();
 }

friend BOOST_ASIO_CONSTEXPR bool operator==(
      const tracked_t&, const tracked_t&)
  {
    return true;
  }

friend BOOST_ASIO_CONSTEXPR bool operator!=(
      const tracked_t&, const tracked_t&)
  {
    return false;
  }
};

#if defined(BOOST_ASIO_HAS_DEDUCED_STATIC_QUERY_TRAIT) \
 && defined(BOOST_ASIO_HAS_SFINAE_VARIABLE_TEMPLATES)
template <int I> template <typename E, typename T>
const T tracked_t::static_query_v;
#endif // defined(BOOST_ASIO_HAS_DEDUCED_STATIC_QUERY_TRAIT)
 // && defined(BOOST_ASIO_HAS_SFINAE_VARIABLE_TEMPLATES)

} // namespace outstanding_work
} // namespace detail

typedef detail::outstanding_work_t<> outstanding_work_t;

#if defined(BOOST_ASIO_HAS_CONSTEXPR) || defined(GENERATING_DOCUMENTATION)
constexpr outstanding_work_t outstanding_work;
#else // defined(BOOST_ASIO_HAS_CONSTEXPR) || defined(GENERATING_DOCUMENTATION)
namespace { static const outstanding_work_t&
  outstanding_work = outstanding_work_t::instance; }
#endif

} // namespace execution

#if !defined(BOOST_ASIO_HAS_VARIABLE_TEMPLATES)

template <typename T>
struct is_applicable_property<T, execution::outstanding_work_t>
 : integral_constant<bool,
 execution::is_executor<T>::value
 || execution::is_sender<T>::value
 || execution::is_scheduler<T>::value>
{
};

template <typename T>
struct is_applicable_property<T, execution::outstanding_work_t::untracked_t>
 : integral_constant<bool,
 execution::is_executor<T>::value
 || execution::is_sender<T>::value
 || execution::is_scheduler<T>::value>
{
};

template <typename T>
struct is_applicable_property<T, execution::outstanding_work_t::tracked_t>
 : integral_constant<bool,
 execution::is_executor<T>::value
 || execution::is_sender<T>::value
 || execution::is_scheduler<T>::value>
{
};

#endif // !defined(BOOST_ASIO_HAS_VARIABLE_TEMPLATES)

namespace traits {

#if !defined(BOOST_ASIO_HAS_DEDUCED_QUERY_FREE_TRAIT)

template <typename T>
struct query_free_default<T, execution::outstanding_work_t,
 typename enable_if<
 can_query<T, execution::outstanding_work_t::untracked_t>::value
 >::type>
{
 BOOST_ASIO_STATIC_CONSTEXPR(bool, is_valid = true);
 BOOST_ASIO_STATIC_CONSTEXPR(bool, is_noexcept =
 (is_nothrow_query<T, execution::outstanding_work_t::untracked_t>::value));

typedef execution::outstanding_work_t result_type;
};

template <typename T>
struct query_free_default<T, execution::outstanding_work_t,
 typename enable_if<
 !can_query<T, execution::outstanding_work_t::untracked_t>::value
 && can_query<T, execution::outstanding_work_t::tracked_t>::value
 >::type>
{
 BOOST_ASIO_STATIC_CONSTEXPR(bool, is_valid = true);
 BOOST_ASIO_STATIC_CONSTEXPR(bool, is_noexcept =
 (is_nothrow_query<T, execution::outstanding_work_t::tracked_t>::value));

typedef execution::outstanding_work_t result_type;
};

#endif // !defined(BOOST_ASIO_HAS_DEDUCED_QUERY_FREE_TRAIT)

#if !defined(BOOST_ASIO_HAS_DEDUCED_STATIC_QUERY_TRAIT) \
  || !defined(BOOST_ASIO_HAS_SFINAE_VARIABLE_TEMPLATES)

template <typename T>
struct static_query<T, execution::outstanding_work_t,
 typename enable_if<
 traits::query_static_constexpr_member<T,
 execution::outstanding_work_t>::is_valid
 >::type>
{
 BOOST_ASIO_STATIC_CONSTEXPR(bool, is_valid = true);
 BOOST_ASIO_STATIC_CONSTEXPR(bool, is_noexcept = true);

typedef typename traits::query_static_constexpr_member<T,
 execution::outstanding_work_t>::result_type result_type;

static BOOST_ASIO_CONSTEXPR result_type value()
 {
 return traits::query_static_constexpr_member<T,
 execution::outstanding_work_t>::value();
 }
};

template <typename T>
struct static_query<T, execution::outstanding_work_t,
 typename enable_if<
 !traits::query_static_constexpr_member<T,
 execution::outstanding_work_t>::is_valid
 && !traits::query_member<T,
 execution::outstanding_work_t>::is_valid
 && traits::static_query<T,
 execution::outstanding_work_t::untracked_t>::is_valid
 >::type>
{
 BOOST_ASIO_STATIC_CONSTEXPR(bool, is_valid = true);
 BOOST_ASIO_STATIC_CONSTEXPR(bool, is_noexcept = true);

typedef typename traits::static_query<T,
 execution::outstanding_work_t::untracked_t>::result_type result_type;

static BOOST_ASIO_CONSTEXPR result_type value()
 {
 return traits::static_query<T,
 execution::outstanding_work_t::untracked_t>::value();
 }
};

template <typename T>
struct static_query<T, execution::outstanding_work_t,
 typename enable_if<
 !traits::query_static_constexpr_member<T,
 execution::outstanding_work_t>::is_valid
 && !traits::query_member<T,
 execution::outstanding_work_t>::is_valid
 && !traits::static_query<T,
 execution::outstanding_work_t::untracked_t>::is_valid
 && traits::static_query<T,
 execution::outstanding_work_t::tracked_t>::is_valid
 >::type>
{
 BOOST_ASIO_STATIC_CONSTEXPR(bool, is_valid = true);
 BOOST_ASIO_STATIC_CONSTEXPR(bool, is_noexcept = true);

typedef typename traits::static_query<T,
 execution::outstanding_work_t::tracked_t>::result_type result_type;

static BOOST_ASIO_CONSTEXPR result_type value()
 {
 return traits::static_query<T,
 execution::outstanding_work_t::tracked_t>::value();
 }
};

template <typename T>
struct static_query<T, execution::outstanding_work_t::untracked_t,
 typename enable_if<
 traits::query_static_constexpr_member<T,
 execution::outstanding_work_t::untracked_t>::is_valid
 >::type>
{
 BOOST_ASIO_STATIC_CONSTEXPR(bool, is_valid = true);
 BOOST_ASIO_STATIC_CONSTEXPR(bool, is_noexcept = true);

typedef typename traits::query_static_constexpr_member<T,
 execution::outstanding_work_t::untracked_t>::result_type result_type;

static BOOST_ASIO_CONSTEXPR result_type value()
 {
 return traits::query_static_constexpr_member<T,
 execution::outstanding_work_t::untracked_t>::value();
 }
};

template <typename T>
struct static_query<T, execution::outstanding_work_t::untracked_t,
 typename enable_if<
 !traits::query_static_constexpr_member<T,
 execution::outstanding_work_t::untracked_t>::is_valid
 && !traits::query_member<T,
 execution::outstanding_work_t::untracked_t>::is_valid
 && !traits::query_free<T,
 execution::outstanding_work_t::untracked_t>::is_valid
 && !can_query<T, execution::outstanding_work_t::tracked_t>::value
 >::type>
{
 BOOST_ASIO_STATIC_CONSTEXPR(bool, is_valid = true);
 BOOST_ASIO_STATIC_CONSTEXPR(bool, is_noexcept = true);

typedef execution::outstanding_work_t::untracked_t result_type;

static BOOST_ASIO_CONSTEXPR result_type value()
  {
    return result_type();
  }
};

template <typename T>
struct static_query<T, execution::outstanding_work_t::tracked_t,
 typename enable_if<
 traits::query_static_constexpr_member<T,
 execution::outstanding_work_t::tracked_t>::is_valid
 >::type>
{
 BOOST_ASIO_STATIC_CONSTEXPR(bool, is_valid = true);
 BOOST_ASIO_STATIC_CONSTEXPR(bool, is_noexcept = true);

typedef typename traits::query_static_constexpr_member<T,
 execution::outstanding_work_t::tracked_t>::result_type result_type;

static BOOST_ASIO_CONSTEXPR result_type value()
 {
 return traits::query_static_constexpr_member<T,
 execution::outstanding_work_t::tracked_t>::value();
 }
};

#endif // !defined(BOOST_ASIO_HAS_DEDUCED_STATIC_QUERY_TRAIT)
       //   || !defined(BOOST_ASIO_HAS_SFINAE_VARIABLE_TEMPLATES)

#if !defined(BOOST_ASIO_HAS_DEDUCED_STATIC_REQUIRE_TRAIT)

template <typename T>
struct static_require<T, execution::outstanding_work_t::untracked_t,
 typename enable_if<
 static_query<T, execution::outstanding_work_t::untracked_t>::is_valid
 >::type>
{
 BOOST_ASIO_STATIC_CONSTEXPR(bool, is_valid =
 (is_same<typename static_query<T,
 execution::outstanding_work_t::untracked_t>::result_type,
 execution::outstanding_work_t::untracked_t>::value));
};

template <typename T>
struct static_require<T, execution::outstanding_work_t::tracked_t,
 typename enable_if<
 static_query<T, execution::outstanding_work_t::tracked_t>::is_valid
 >::type>
{
 BOOST_ASIO_STATIC_CONSTEXPR(bool, is_valid =
 (is_same<typename static_query<T,
 execution::outstanding_work_t::tracked_t>::result_type,
 execution::outstanding_work_t::tracked_t>::value));
};

#endif // !defined(BOOST_ASIO_HAS_DEDUCED_STATIC_REQUIRE_TRAIT)

} // namespace traits

#endif // defined(GENERATING_DOCUMENTATION)

} // namespace asio
} // namespace boost

#include <boost/asio/detail/pop_options.hpp>

#endif // BOOST_ASIO_EXECUTION_OUTSTANDING_WORK_HPP

// // execution/outstanding_work.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_OUTSTANDING_WORK_HPP #define BOOST_ASIO_EXECUTION_OUTSTANDING_WORK_HPP #if defined(_MSC_VER) && (_MSC_VER >= 1200) # pragma once #endif // defined(_MSC_VER) && (_MSC_VER >= 1200) #include #include #include #include #include #include #include #include #include #include #include #include #include namespace boost { namespace asio { #if defined(GENERATING_DOCUMENTATION) namespace execution { /// A property to describe whether task submission is likely in the future. struct outstanding_work_t { /// The outstanding_work_t property applies to executors, senders, and /// schedulers. template static constexpr bool is_applicable_property_v = is_executor_v || is_sender_v || is_scheduler_v; /// The top-level outstanding_work_t property cannot be required. static constexpr bool is_requirable = false; /// The top-level outstanding_work_t property cannot be preferred. static constexpr bool is_preferable = false; /// The type returned by queries against an @c any_executor. typedef outstanding_work_t polymorphic_query_result_type; /// A sub-property that indicates that the executor does not represent likely /// future submission of a function object. struct untracked_t { /// The outstanding_work_t::untracked_t property applies to executors, /// senders, and schedulers. template static constexpr bool is_applicable_property_v = is_executor_v || is_sender_v || is_scheduler_v; /// The outstanding_work_t::untracked_t property can be required. static constexpr bool is_requirable = true; /// The outstanding_work_t::untracked_t property can be preferred. static constexpr bool is_preferable = true; /// The type returned by queries against an @c any_executor. typedef outstanding_work_t polymorphic_query_result_type; /// Default constructor. constexpr untracked_t(); /// Get the value associated with a property object. /** * @returns untracked_t(); */ static constexpr outstanding_work_t value(); }; /// A sub-property that indicates that the executor represents likely /// future submission of a function object. struct tracked_t { /// The outstanding_work_t::untracked_t property applies to executors, /// senders, and schedulers. template static constexpr bool is_applicable_property_v = is_executor_v || is_sender_v || is_scheduler_v; /// The outstanding_work_t::tracked_t property can be required. static constexpr bool is_requirable = true; /// The outstanding_work_t::tracked_t property can be preferred. static constexpr bool is_preferable = true; /// The type returned by queries against an @c any_executor. typedef outstanding_work_t polymorphic_query_result_type; /// Default constructor. constexpr tracked_t(); /// Get the value associated with a property object. /** * @returns tracked_t(); */ static constexpr outstanding_work_t value(); }; /// A special value used for accessing the outstanding_work_t::untracked_t /// property. static constexpr untracked_t untracked; /// A special value used for accessing the outstanding_work_t::tracked_t /// property. static constexpr tracked_t tracked; /// Default constructor. constexpr outstanding_work_t(); /// Construct from a sub-property value. constexpr outstanding_work_t(untracked_t); /// Construct from a sub-property value. constexpr outstanding_work_t(tracked_t); /// Compare property values for equality. friend constexpr bool operator==( const outstanding_work_t& a, const outstanding_work_t& b) noexcept; /// Compare property values for inequality. friend constexpr bool operator!=( const outstanding_work_t& a, const outstanding_work_t& b) noexcept; }; /// A special value used for accessing the outstanding_work_t property. constexpr outstanding_work_t outstanding_work; } // namespace execution #else // defined(GENERATING_DOCUMENTATION) namespace execution { namespace detail { namespace outstanding_work { template struct untracked_t; template struct tracked_t; } // namespace outstanding_work template struct outstanding_work_t { #if defined(BOOST_ASIO_HAS_VARIABLE_TEMPLATES) template BOOST_ASIO_STATIC_CONSTEXPR(bool, is_applicable_property_v = is_executor::value || is_sender::value || is_scheduler::value); #endif // defined(BOOST_ASIO_HAS_VARIABLE_TEMPLATES) BOOST_ASIO_STATIC_CONSTEXPR(bool, is_requirable = false); BOOST_ASIO_STATIC_CONSTEXPR(bool, is_preferable = false); typedef outstanding_work_t polymorphic_query_result_type; typedef detail::outstanding_work::untracked_t untracked_t; typedef detail::outstanding_work::tracked_t tracked_t; BOOST_ASIO_CONSTEXPR outstanding_work_t() : value_(-1) { } BOOST_ASIO_CONSTEXPR outstanding_work_t(untracked_t) : value_(0) { } BOOST_ASIO_CONSTEXPR outstanding_work_t(tracked_t) : value_(1) { } #if defined(BOOST_ASIO_HAS_DEDUCED_STATIC_QUERY_TRAIT) \ && defined(BOOST_ASIO_HAS_SFINAE_VARIABLE_TEMPLATES) template static BOOST_ASIO_CONSTEXPR typename traits::query_static_constexpr_member< T, outstanding_work_t>::result_type static_query() BOOST_ASIO_NOEXCEPT_IF(( traits::query_static_constexpr_member< T, outstanding_work_t >::is_noexcept)) { return traits::query_static_constexpr_member< T, outstanding_work_t>::value(); } template static BOOST_ASIO_CONSTEXPR typename traits::static_query::result_type static_query( typename enable_if< !traits::query_static_constexpr_member< T, outstanding_work_t>::is_valid && !traits::query_member::is_valid && traits::static_query::is_valid >::type* = 0) BOOST_ASIO_NOEXCEPT { return traits::static_query::value(); } template static BOOST_ASIO_CONSTEXPR typename traits::static_query::result_type static_query( typename enable_if< !traits::query_static_constexpr_member< T, outstanding_work_t>::is_valid && !traits::query_member::is_valid && !traits::static_query::is_valid && traits::static_query::is_valid >::type* = 0) BOOST_ASIO_NOEXCEPT { return traits::static_query::value(); } template ())> static BOOST_ASIO_CONSTEXPR const T static_query_v = outstanding_work_t::static_query(); #endif // defined(BOOST_ASIO_HAS_DEDUCED_STATIC_QUERY_TRAIT) // && defined(BOOST_ASIO_HAS_SFINAE_VARIABLE_TEMPLATES) friend BOOST_ASIO_CONSTEXPR bool operator==( const outstanding_work_t& a, const outstanding_work_t& b) { return a.value_ == b.value_; } friend BOOST_ASIO_CONSTEXPR bool operator!=( const outstanding_work_t& a, const outstanding_work_t& b) { return a.value_ != b.value_; } struct convertible_from_outstanding_work_t { BOOST_ASIO_CONSTEXPR convertible_from_outstanding_work_t(outstanding_work_t) { } }; template friend BOOST_ASIO_CONSTEXPR outstanding_work_t query( const Executor& ex, convertible_from_outstanding_work_t, typename enable_if< can_query::value >::type* = 0) #if !defined(__clang__) // Clang crashes if noexcept is used here. #if defined(BOOST_ASIO_MSVC) // Visual C++ wants the type to be qualified. BOOST_ASIO_NOEXCEPT_IF(( is_nothrow_query::untracked_t>::value)) #else // defined(BOOST_ASIO_MSVC) BOOST_ASIO_NOEXCEPT_IF(( is_nothrow_query::value)) #endif // defined(BOOST_ASIO_MSVC) #endif // !defined(__clang__) { return boost::asio::query(ex, untracked_t()); } template friend BOOST_ASIO_CONSTEXPR outstanding_work_t query( const Executor& ex, convertible_from_outstanding_work_t, typename enable_if< !can_query::value && can_query::value >::type* = 0) #if !defined(__clang__) // Clang crashes if noexcept is used here. #if defined(BOOST_ASIO_MSVC) // Visual C++ wants the type to be qualified. BOOST_ASIO_NOEXCEPT_IF(( is_nothrow_query::tracked_t>::value)) #else // defined(BOOST_ASIO_MSVC) BOOST_ASIO_NOEXCEPT_IF(( is_nothrow_query::value)) #endif // defined(BOOST_ASIO_MSVC) #endif // !defined(__clang__) { return boost::asio::query(ex, tracked_t()); } BOOST_ASIO_STATIC_CONSTEXPR_DEFAULT_INIT(untracked_t, untracked); BOOST_ASIO_STATIC_CONSTEXPR_DEFAULT_INIT(tracked_t, tracked); #if !defined(BOOST_ASIO_HAS_CONSTEXPR) static const outstanding_work_t instance; #endif // !defined(BOOST_ASIO_HAS_CONSTEXPR) private: int value_; }; #if defined(BOOST_ASIO_HAS_DEDUCED_STATIC_QUERY_TRAIT) \ && defined(BOOST_ASIO_HAS_SFINAE_VARIABLE_TEMPLATES) template template const T outstanding_work_t::static_query_v; #endif // defined(BOOST_ASIO_HAS_DEDUCED_STATIC_QUERY_TRAIT) // && defined(BOOST_ASIO_HAS_SFINAE_VARIABLE_TEMPLATES) #if !defined(BOOST_ASIO_HAS_CONSTEXPR) template const outstanding_work_t outstanding_work_t::instance; #endif template const typename outstanding_work_t::untracked_t outstanding_work_t::untracked; template const typename outstanding_work_t::tracked_t outstanding_work_t::tracked; namespace outstanding_work { template struct untracked_t { #if defined(BOOST_ASIO_HAS_VARIABLE_TEMPLATES) template BOOST_ASIO_STATIC_CONSTEXPR(bool, is_applicable_property_v = is_executor::value || is_sender::value || is_scheduler::value); #endif // defined(BOOST_ASIO_HAS_VARIABLE_TEMPLATES) BOOST_ASIO_STATIC_CONSTEXPR(bool, is_requirable = true); BOOST_ASIO_STATIC_CONSTEXPR(bool, is_preferable = true); typedef outstanding_work_t polymorphic_query_result_type; BOOST_ASIO_CONSTEXPR untracked_t() { } #if defined(BOOST_ASIO_HAS_DEDUCED_STATIC_QUERY_TRAIT) \ && defined(BOOST_ASIO_HAS_SFINAE_VARIABLE_TEMPLATES) template static BOOST_ASIO_CONSTEXPR typename traits::query_static_constexpr_member::result_type static_query() BOOST_ASIO_NOEXCEPT_IF(( traits::query_static_constexpr_member::is_noexcept)) { return traits::query_static_constexpr_member::value(); } template static BOOST_ASIO_CONSTEXPR untracked_t static_query( typename enable_if< !traits::query_static_constexpr_member::is_valid && !traits::query_member::is_valid && !traits::query_free::is_valid && !can_query >::value >::type* = 0) BOOST_ASIO_NOEXCEPT { return untracked_t(); } template ())> static BOOST_ASIO_CONSTEXPR const T static_query_v = untracked_t::static_query(); #endif // defined(BOOST_ASIO_HAS_DEDUCED_STATIC_QUERY_TRAIT) // && defined(BOOST_ASIO_HAS_SFINAE_VARIABLE_TEMPLATES) static BOOST_ASIO_CONSTEXPR outstanding_work_t value() { return untracked_t(); } friend BOOST_ASIO_CONSTEXPR bool operator==( const untracked_t&, const untracked_t&) { return true; } friend BOOST_ASIO_CONSTEXPR bool operator!=( const untracked_t&, const untracked_t&) { return false; } }; #if defined(BOOST_ASIO_HAS_DEDUCED_STATIC_QUERY_TRAIT) \ && defined(BOOST_ASIO_HAS_SFINAE_VARIABLE_TEMPLATES) template template const T untracked_t::static_query_v; #endif // defined(BOOST_ASIO_HAS_DEDUCED_STATIC_QUERY_TRAIT) // && defined(BOOST_ASIO_HAS_SFINAE_VARIABLE_TEMPLATES) template struct tracked_t { #if defined(BOOST_ASIO_HAS_VARIABLE_TEMPLATES) template BOOST_ASIO_STATIC_CONSTEXPR(bool, is_applicable_property_v = is_executor::value || is_sender::value || is_scheduler::value); #endif // defined(BOOST_ASIO_HAS_VARIABLE_TEMPLATES) BOOST_ASIO_STATIC_CONSTEXPR(bool, is_requirable = true); BOOST_ASIO_STATIC_CONSTEXPR(bool, is_preferable = true); typedef outstanding_work_t polymorphic_query_result_type; BOOST_ASIO_CONSTEXPR tracked_t() { } #if defined(BOOST_ASIO_HAS_DEDUCED_STATIC_QUERY_TRAIT) \ && defined(BOOST_ASIO_HAS_SFINAE_VARIABLE_TEMPLATES) template static BOOST_ASIO_CONSTEXPR typename traits::query_static_constexpr_member::result_type static_query() BOOST_ASIO_NOEXCEPT_IF(( traits::query_static_constexpr_member::is_noexcept)) { return traits::query_static_constexpr_member::value(); } template ())> static BOOST_ASIO_CONSTEXPR const T static_query_v = tracked_t::static_query(); #endif // defined(BOOST_ASIO_HAS_DEDUCED_STATIC_QUERY_TRAIT) // && defined(BOOST_ASIO_HAS_SFINAE_VARIABLE_TEMPLATES) static BOOST_ASIO_CONSTEXPR outstanding_work_t value() { return tracked_t(); } friend BOOST_ASIO_CONSTEXPR bool operator==( const tracked_t&, const tracked_t&) { return true; } friend BOOST_ASIO_CONSTEXPR bool operator!=( const tracked_t&, const tracked_t&) { return false; } }; #if defined(BOOST_ASIO_HAS_DEDUCED_STATIC_QUERY_TRAIT) \ && defined(BOOST_ASIO_HAS_SFINAE_VARIABLE_TEMPLATES) template template const T tracked_t::static_query_v; #endif // defined(BOOST_ASIO_HAS_DEDUCED_STATIC_QUERY_TRAIT) // && defined(BOOST_ASIO_HAS_SFINAE_VARIABLE_TEMPLATES) } // namespace outstanding_work } // namespace detail typedef detail::outstanding_work_t<> outstanding_work_t; #if defined(BOOST_ASIO_HAS_CONSTEXPR) || defined(GENERATING_DOCUMENTATION) constexpr outstanding_work_t outstanding_work; #else // defined(BOOST_ASIO_HAS_CONSTEXPR) || defined(GENERATING_DOCUMENTATION) namespace { static const outstanding_work_t& outstanding_work = outstanding_work_t::instance; } #endif } // namespace execution #if !defined(BOOST_ASIO_HAS_VARIABLE_TEMPLATES) template struct is_applicable_property : integral_constant::value || execution::is_sender::value || execution::is_scheduler::value> { }; template struct is_applicable_property : integral_constant::value || execution::is_sender::value || execution::is_scheduler::value> { }; template struct is_applicable_property : integral_constant::value || execution::is_sender::value || execution::is_scheduler::value> { }; #endif // !defined(BOOST_ASIO_HAS_VARIABLE_TEMPLATES) namespace traits { #if !defined(BOOST_ASIO_HAS_DEDUCED_QUERY_FREE_TRAIT) template struct query_free_default::value >::type> { BOOST_ASIO_STATIC_CONSTEXPR(bool, is_valid = true); BOOST_ASIO_STATIC_CONSTEXPR(bool, is_noexcept = (is_nothrow_query::value)); typedef execution::outstanding_work_t result_type; }; template struct query_free_default::value && can_query::value >::type> { BOOST_ASIO_STATIC_CONSTEXPR(bool, is_valid = true); BOOST_ASIO_STATIC_CONSTEXPR(bool, is_noexcept = (is_nothrow_query::value)); typedef execution::outstanding_work_t result_type; }; #endif // !defined(BOOST_ASIO_HAS_DEDUCED_QUERY_FREE_TRAIT) #if !defined(BOOST_ASIO_HAS_DEDUCED_STATIC_QUERY_TRAIT) \ || !defined(BOOST_ASIO_HAS_SFINAE_VARIABLE_TEMPLATES) template struct static_query::is_valid >::type> { BOOST_ASIO_STATIC_CONSTEXPR(bool, is_valid = true); BOOST_ASIO_STATIC_CONSTEXPR(bool, is_noexcept = true); typedef typename traits::query_static_constexpr_member::result_type result_type; static BOOST_ASIO_CONSTEXPR result_type value() { return traits::query_static_constexpr_member::value(); } }; template struct static_query::is_valid && !traits::query_member::is_valid && traits::static_query::is_valid >::type> { BOOST_ASIO_STATIC_CONSTEXPR(bool, is_valid = true); BOOST_ASIO_STATIC_CONSTEXPR(bool, is_noexcept = true); typedef typename traits::static_query::result_type result_type; static BOOST_ASIO_CONSTEXPR result_type value() { return traits::static_query::value(); } }; template struct static_query::is_valid && !traits::query_member::is_valid && !traits::static_query::is_valid && traits::static_query::is_valid >::type> { BOOST_ASIO_STATIC_CONSTEXPR(bool, is_valid = true); BOOST_ASIO_STATIC_CONSTEXPR(bool, is_noexcept = true); typedef typename traits::static_query::result_type result_type; static BOOST_ASIO_CONSTEXPR result_type value() { return traits::static_query::value(); } }; template struct static_query::is_valid >::type> { BOOST_ASIO_STATIC_CONSTEXPR(bool, is_valid = true); BOOST_ASIO_STATIC_CONSTEXPR(bool, is_noexcept = true); typedef typename traits::query_static_constexpr_member::result_type result_type; static BOOST_ASIO_CONSTEXPR result_type value() { return traits::query_static_constexpr_member::value(); } }; template struct static_query::is_valid && !traits::query_member::is_valid && !traits::query_free::is_valid && !can_query::value >::type> { BOOST_ASIO_STATIC_CONSTEXPR(bool, is_valid = true); BOOST_ASIO_STATIC_CONSTEXPR(bool, is_noexcept = true); typedef execution::outstanding_work_t::untracked_t result_type; static BOOST_ASIO_CONSTEXPR result_type value() { return result_type(); } }; template struct static_query::is_valid >::type> { BOOST_ASIO_STATIC_CONSTEXPR(bool, is_valid = true); BOOST_ASIO_STATIC_CONSTEXPR(bool, is_noexcept = true); typedef typename traits::query_static_constexpr_member::result_type result_type; static BOOST_ASIO_CONSTEXPR result_type value() { return traits::query_static_constexpr_member::value(); } }; #endif // !defined(BOOST_ASIO_HAS_DEDUCED_STATIC_QUERY_TRAIT) // || !defined(BOOST_ASIO_HAS_SFINAE_VARIABLE_TEMPLATES) #if !defined(BOOST_ASIO_HAS_DEDUCED_STATIC_REQUIRE_TRAIT) template struct static_require::is_valid >::type> { BOOST_ASIO_STATIC_CONSTEXPR(bool, is_valid = (is_same::result_type, execution::outstanding_work_t::untracked_t>::value)); }; template struct static_require::is_valid >::type> { BOOST_ASIO_STATIC_CONSTEXPR(bool, is_valid = (is_same::result_type, execution::outstanding_work_t::tracked_t>::value)); }; #endif // !defined(BOOST_ASIO_HAS_DEDUCED_STATIC_REQUIRE_TRAIT) } // namespace traits #endif // defined(GENERATING_DOCUMENTATION) } // namespace asio } // namespace boost #include #endif // BOOST_ASIO_EXECUTION_OUTSTANDING_WORK_HPP