737 lines
21 KiB
C++
737 lines
21 KiB
C++
//
|
|
// bind_immediate_executor.hpp
|
|
// ~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
//
|
|
// Copyright (c) 2003-2023 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_BIND_IMMEDIATE_EXECUTOR_HPP
|
|
#define ASIO_BIND_IMMEDIATE_EXECUTOR_HPP
|
|
|
|
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
|
|
# pragma once
|
|
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
|
|
|
|
#include "asio/detail/config.hpp"
|
|
#include "asio/detail/type_traits.hpp"
|
|
#include "asio/detail/variadic_templates.hpp"
|
|
#include "asio/associated_immediate_executor.hpp"
|
|
#include "asio/associator.hpp"
|
|
#include "asio/async_result.hpp"
|
|
|
|
#include "asio/detail/push_options.hpp"
|
|
|
|
namespace asio {
|
|
namespace detail {
|
|
|
|
// Helper to automatically define nested typedef result_type.
|
|
|
|
template <typename T, typename = void>
|
|
struct immediate_executor_binder_result_type
|
|
{
|
|
protected:
|
|
typedef void result_type_or_void;
|
|
};
|
|
|
|
template <typename T>
|
|
struct immediate_executor_binder_result_type<T,
|
|
typename void_type<typename T::result_type>::type>
|
|
{
|
|
typedef typename T::result_type result_type;
|
|
protected:
|
|
typedef result_type result_type_or_void;
|
|
};
|
|
|
|
template <typename R>
|
|
struct immediate_executor_binder_result_type<R(*)()>
|
|
{
|
|
typedef R result_type;
|
|
protected:
|
|
typedef result_type result_type_or_void;
|
|
};
|
|
|
|
template <typename R>
|
|
struct immediate_executor_binder_result_type<R(&)()>
|
|
{
|
|
typedef R result_type;
|
|
protected:
|
|
typedef result_type result_type_or_void;
|
|
};
|
|
|
|
template <typename R, typename A1>
|
|
struct immediate_executor_binder_result_type<R(*)(A1)>
|
|
{
|
|
typedef R result_type;
|
|
protected:
|
|
typedef result_type result_type_or_void;
|
|
};
|
|
|
|
template <typename R, typename A1>
|
|
struct immediate_executor_binder_result_type<R(&)(A1)>
|
|
{
|
|
typedef R result_type;
|
|
protected:
|
|
typedef result_type result_type_or_void;
|
|
};
|
|
|
|
template <typename R, typename A1, typename A2>
|
|
struct immediate_executor_binder_result_type<R(*)(A1, A2)>
|
|
{
|
|
typedef R result_type;
|
|
protected:
|
|
typedef result_type result_type_or_void;
|
|
};
|
|
|
|
template <typename R, typename A1, typename A2>
|
|
struct immediate_executor_binder_result_type<R(&)(A1, A2)>
|
|
{
|
|
typedef R result_type;
|
|
protected:
|
|
typedef result_type result_type_or_void;
|
|
};
|
|
|
|
// Helper to automatically define nested typedef argument_type.
|
|
|
|
template <typename T, typename = void>
|
|
struct immediate_executor_binder_argument_type {};
|
|
|
|
template <typename T>
|
|
struct immediate_executor_binder_argument_type<T,
|
|
typename void_type<typename T::argument_type>::type>
|
|
{
|
|
typedef typename T::argument_type argument_type;
|
|
};
|
|
|
|
template <typename R, typename A1>
|
|
struct immediate_executor_binder_argument_type<R(*)(A1)>
|
|
{
|
|
typedef A1 argument_type;
|
|
};
|
|
|
|
template <typename R, typename A1>
|
|
struct immediate_executor_binder_argument_type<R(&)(A1)>
|
|
{
|
|
typedef A1 argument_type;
|
|
};
|
|
|
|
// Helper to automatically define nested typedefs first_argument_type and
|
|
// second_argument_type.
|
|
|
|
template <typename T, typename = void>
|
|
struct immediate_executor_binder_argument_types {};
|
|
|
|
template <typename T>
|
|
struct immediate_executor_binder_argument_types<T,
|
|
typename void_type<typename T::first_argument_type>::type>
|
|
{
|
|
typedef typename T::first_argument_type first_argument_type;
|
|
typedef typename T::second_argument_type second_argument_type;
|
|
};
|
|
|
|
template <typename R, typename A1, typename A2>
|
|
struct immediate_executor_binder_argument_type<R(*)(A1, A2)>
|
|
{
|
|
typedef A1 first_argument_type;
|
|
typedef A2 second_argument_type;
|
|
};
|
|
|
|
template <typename R, typename A1, typename A2>
|
|
struct immediate_executor_binder_argument_type<R(&)(A1, A2)>
|
|
{
|
|
typedef A1 first_argument_type;
|
|
typedef A2 second_argument_type;
|
|
};
|
|
|
|
// Helper to enable SFINAE on zero-argument operator() below.
|
|
|
|
template <typename T, typename = void>
|
|
struct immediate_executor_binder_result_of0
|
|
{
|
|
typedef void type;
|
|
};
|
|
|
|
template <typename T>
|
|
struct immediate_executor_binder_result_of0<T,
|
|
typename void_type<typename result_of<T()>::type>::type>
|
|
{
|
|
typedef typename result_of<T()>::type type;
|
|
};
|
|
|
|
} // namespace detail
|
|
|
|
/// A call wrapper type to bind a immediate executor of type @c Executor
|
|
/// to an object of type @c T.
|
|
template <typename T, typename Executor>
|
|
class immediate_executor_binder
|
|
#if !defined(GENERATING_DOCUMENTATION)
|
|
: public detail::immediate_executor_binder_result_type<T>,
|
|
public detail::immediate_executor_binder_argument_type<T>,
|
|
public detail::immediate_executor_binder_argument_types<T>
|
|
#endif // !defined(GENERATING_DOCUMENTATION)
|
|
{
|
|
public:
|
|
/// The type of the target object.
|
|
typedef T target_type;
|
|
|
|
/// The type of the associated immediate executor.
|
|
typedef Executor immediate_executor_type;
|
|
|
|
#if defined(GENERATING_DOCUMENTATION)
|
|
/// The return type if a function.
|
|
/**
|
|
* The type of @c result_type is based on the type @c T of the wrapper's
|
|
* target object:
|
|
*
|
|
* @li if @c T is a pointer to function type, @c result_type is a synonym for
|
|
* the return type of @c T;
|
|
*
|
|
* @li if @c T is a class type with a member type @c result_type, then @c
|
|
* result_type is a synonym for @c T::result_type;
|
|
*
|
|
* @li otherwise @c result_type is not defined.
|
|
*/
|
|
typedef see_below result_type;
|
|
|
|
/// The type of the function's argument.
|
|
/**
|
|
* The type of @c argument_type is based on the type @c T of the wrapper's
|
|
* target object:
|
|
*
|
|
* @li if @c T is a pointer to a function type accepting a single argument,
|
|
* @c argument_type is a synonym for the return type of @c T;
|
|
*
|
|
* @li if @c T is a class type with a member type @c argument_type, then @c
|
|
* argument_type is a synonym for @c T::argument_type;
|
|
*
|
|
* @li otherwise @c argument_type is not defined.
|
|
*/
|
|
typedef see_below argument_type;
|
|
|
|
/// The type of the function's first argument.
|
|
/**
|
|
* The type of @c first_argument_type is based on the type @c T of the
|
|
* wrapper's target object:
|
|
*
|
|
* @li if @c T is a pointer to a function type accepting two arguments, @c
|
|
* first_argument_type is a synonym for the return type of @c T;
|
|
*
|
|
* @li if @c T is a class type with a member type @c first_argument_type,
|
|
* then @c first_argument_type is a synonym for @c T::first_argument_type;
|
|
*
|
|
* @li otherwise @c first_argument_type is not defined.
|
|
*/
|
|
typedef see_below first_argument_type;
|
|
|
|
/// The type of the function's second argument.
|
|
/**
|
|
* The type of @c second_argument_type is based on the type @c T of the
|
|
* wrapper's target object:
|
|
*
|
|
* @li if @c T is a pointer to a function type accepting two arguments, @c
|
|
* second_argument_type is a synonym for the return type of @c T;
|
|
*
|
|
* @li if @c T is a class type with a member type @c first_argument_type,
|
|
* then @c second_argument_type is a synonym for @c T::second_argument_type;
|
|
*
|
|
* @li otherwise @c second_argument_type is not defined.
|
|
*/
|
|
typedef see_below second_argument_type;
|
|
#endif // defined(GENERATING_DOCUMENTATION)
|
|
|
|
/// Construct a immediate executor wrapper for the specified object.
|
|
/**
|
|
* This constructor is only valid if the type @c T is constructible from type
|
|
* @c U.
|
|
*/
|
|
template <typename U>
|
|
immediate_executor_binder(const immediate_executor_type& e,
|
|
ASIO_MOVE_ARG(U) u)
|
|
: executor_(e),
|
|
target_(ASIO_MOVE_CAST(U)(u))
|
|
{
|
|
}
|
|
|
|
/// Copy constructor.
|
|
immediate_executor_binder(const immediate_executor_binder& other)
|
|
: executor_(other.get_immediate_executor()),
|
|
target_(other.get())
|
|
{
|
|
}
|
|
|
|
/// Construct a copy, but specify a different immediate executor.
|
|
immediate_executor_binder(const immediate_executor_type& e,
|
|
const immediate_executor_binder& other)
|
|
: executor_(e),
|
|
target_(other.get())
|
|
{
|
|
}
|
|
|
|
/// Construct a copy of a different immediate executor wrapper type.
|
|
/**
|
|
* This constructor is only valid if the @c Executor type is
|
|
* constructible from type @c OtherExecutor, and the type @c T is
|
|
* constructible from type @c U.
|
|
*/
|
|
template <typename U, typename OtherExecutor>
|
|
immediate_executor_binder(
|
|
const immediate_executor_binder<U, OtherExecutor>& other)
|
|
: executor_(other.get_immediate_executor()),
|
|
target_(other.get())
|
|
{
|
|
}
|
|
|
|
/// Construct a copy of a different immediate executor wrapper type, but
|
|
/// specify a different immediate executor.
|
|
/**
|
|
* This constructor is only valid if the type @c T is constructible from type
|
|
* @c U.
|
|
*/
|
|
template <typename U, typename OtherExecutor>
|
|
immediate_executor_binder(const immediate_executor_type& e,
|
|
const immediate_executor_binder<U, OtherExecutor>& other)
|
|
: executor_(e),
|
|
target_(other.get())
|
|
{
|
|
}
|
|
|
|
#if defined(ASIO_HAS_MOVE) || defined(GENERATING_DOCUMENTATION)
|
|
|
|
/// Move constructor.
|
|
immediate_executor_binder(immediate_executor_binder&& other)
|
|
: executor_(ASIO_MOVE_CAST(immediate_executor_type)(
|
|
other.get_immediate_executor())),
|
|
target_(ASIO_MOVE_CAST(T)(other.get()))
|
|
{
|
|
}
|
|
|
|
/// Move construct the target object, but specify a different immediate
|
|
/// executor.
|
|
immediate_executor_binder(const immediate_executor_type& e,
|
|
immediate_executor_binder&& other)
|
|
: executor_(e),
|
|
target_(ASIO_MOVE_CAST(T)(other.get()))
|
|
{
|
|
}
|
|
|
|
/// Move construct from a different immediate executor wrapper type.
|
|
template <typename U, typename OtherExecutor>
|
|
immediate_executor_binder(
|
|
immediate_executor_binder<U, OtherExecutor>&& other)
|
|
: executor_(ASIO_MOVE_CAST(OtherExecutor)(
|
|
other.get_immediate_executor())),
|
|
target_(ASIO_MOVE_CAST(U)(other.get()))
|
|
{
|
|
}
|
|
|
|
/// Move construct from a different immediate executor wrapper type, but
|
|
/// specify a different immediate executor.
|
|
template <typename U, typename OtherExecutor>
|
|
immediate_executor_binder(const immediate_executor_type& e,
|
|
immediate_executor_binder<U, OtherExecutor>&& other)
|
|
: executor_(e),
|
|
target_(ASIO_MOVE_CAST(U)(other.get()))
|
|
{
|
|
}
|
|
|
|
#endif // defined(ASIO_HAS_MOVE) || defined(GENERATING_DOCUMENTATION)
|
|
|
|
/// Destructor.
|
|
~immediate_executor_binder()
|
|
{
|
|
}
|
|
|
|
/// Obtain a reference to the target object.
|
|
target_type& get() ASIO_NOEXCEPT
|
|
{
|
|
return target_;
|
|
}
|
|
|
|
/// Obtain a reference to the target object.
|
|
const target_type& get() const ASIO_NOEXCEPT
|
|
{
|
|
return target_;
|
|
}
|
|
|
|
/// Obtain the associated immediate executor.
|
|
immediate_executor_type get_immediate_executor() const ASIO_NOEXCEPT
|
|
{
|
|
return executor_;
|
|
}
|
|
|
|
#if defined(GENERATING_DOCUMENTATION)
|
|
|
|
template <typename... Args> auto operator()(Args&& ...);
|
|
template <typename... Args> auto operator()(Args&& ...) const;
|
|
|
|
#elif defined(ASIO_HAS_VARIADIC_TEMPLATES)
|
|
|
|
/// Forwarding function call operator.
|
|
template <typename... Args>
|
|
typename result_of<T(Args...)>::type operator()(
|
|
ASIO_MOVE_ARG(Args)... args)
|
|
{
|
|
return target_(ASIO_MOVE_CAST(Args)(args)...);
|
|
}
|
|
|
|
/// Forwarding function call operator.
|
|
template <typename... Args>
|
|
typename result_of<T(Args...)>::type operator()(
|
|
ASIO_MOVE_ARG(Args)... args) const
|
|
{
|
|
return target_(ASIO_MOVE_CAST(Args)(args)...);
|
|
}
|
|
|
|
#elif defined(ASIO_HAS_STD_TYPE_TRAITS) && !defined(_MSC_VER)
|
|
|
|
typename detail::immediate_executor_binder_result_of0<T>::type operator()()
|
|
{
|
|
return target_();
|
|
}
|
|
|
|
typename detail::immediate_executor_binder_result_of0<T>::type
|
|
operator()() const
|
|
{
|
|
return target_();
|
|
}
|
|
|
|
#define ASIO_PRIVATE_BINDER_CALL_DEF(n) \
|
|
template <ASIO_VARIADIC_TPARAMS(n)> \
|
|
typename result_of<T(ASIO_VARIADIC_TARGS(n))>::type operator()( \
|
|
ASIO_VARIADIC_MOVE_PARAMS(n)) \
|
|
{ \
|
|
return target_(ASIO_VARIADIC_MOVE_ARGS(n)); \
|
|
} \
|
|
\
|
|
template <ASIO_VARIADIC_TPARAMS(n)> \
|
|
typename result_of<T(ASIO_VARIADIC_TARGS(n))>::type operator()( \
|
|
ASIO_VARIADIC_MOVE_PARAMS(n)) const \
|
|
{ \
|
|
return target_(ASIO_VARIADIC_MOVE_ARGS(n)); \
|
|
} \
|
|
/**/
|
|
ASIO_VARIADIC_GENERATE(ASIO_PRIVATE_BINDER_CALL_DEF)
|
|
#undef ASIO_PRIVATE_BINDER_CALL_DEF
|
|
|
|
#else // defined(ASIO_HAS_STD_TYPE_TRAITS) && !defined(_MSC_VER)
|
|
|
|
typedef typename detail::immediate_executor_binder_result_type<
|
|
T>::result_type_or_void result_type_or_void;
|
|
|
|
result_type_or_void operator()()
|
|
{
|
|
return target_();
|
|
}
|
|
|
|
result_type_or_void operator()() const
|
|
{
|
|
return target_();
|
|
}
|
|
|
|
#define ASIO_PRIVATE_BINDER_CALL_DEF(n) \
|
|
template <ASIO_VARIADIC_TPARAMS(n)> \
|
|
result_type_or_void operator()( \
|
|
ASIO_VARIADIC_MOVE_PARAMS(n)) \
|
|
{ \
|
|
return target_(ASIO_VARIADIC_MOVE_ARGS(n)); \
|
|
} \
|
|
\
|
|
template <ASIO_VARIADIC_TPARAMS(n)> \
|
|
result_type_or_void operator()( \
|
|
ASIO_VARIADIC_MOVE_PARAMS(n)) const \
|
|
{ \
|
|
return target_(ASIO_VARIADIC_MOVE_ARGS(n)); \
|
|
} \
|
|
/**/
|
|
ASIO_VARIADIC_GENERATE(ASIO_PRIVATE_BINDER_CALL_DEF)
|
|
#undef ASIO_PRIVATE_BINDER_CALL_DEF
|
|
|
|
#endif // defined(ASIO_HAS_STD_TYPE_TRAITS) && !defined(_MSC_VER)
|
|
|
|
private:
|
|
Executor executor_;
|
|
T target_;
|
|
};
|
|
|
|
/// Associate an object of type @c T with a immediate executor of type
|
|
/// @c Executor.
|
|
template <typename Executor, typename T>
|
|
ASIO_NODISCARD inline
|
|
immediate_executor_binder<typename decay<T>::type, Executor>
|
|
bind_immediate_executor(const Executor& e, ASIO_MOVE_ARG(T) t)
|
|
{
|
|
return immediate_executor_binder<
|
|
typename decay<T>::type, Executor>(
|
|
e, ASIO_MOVE_CAST(T)(t));
|
|
}
|
|
|
|
#if !defined(GENERATING_DOCUMENTATION)
|
|
|
|
namespace detail {
|
|
|
|
template <typename TargetAsyncResult,
|
|
typename Executor, typename = void>
|
|
struct immediate_executor_binder_async_result_completion_handler_type
|
|
{
|
|
};
|
|
|
|
template <typename TargetAsyncResult, typename Executor>
|
|
struct immediate_executor_binder_async_result_completion_handler_type<
|
|
TargetAsyncResult, Executor,
|
|
typename void_type<
|
|
typename TargetAsyncResult::completion_handler_type
|
|
>::type>
|
|
{
|
|
typedef immediate_executor_binder<
|
|
typename TargetAsyncResult::completion_handler_type, Executor>
|
|
completion_handler_type;
|
|
};
|
|
|
|
template <typename TargetAsyncResult, typename = void>
|
|
struct immediate_executor_binder_async_result_return_type
|
|
{
|
|
};
|
|
|
|
template <typename TargetAsyncResult>
|
|
struct immediate_executor_binder_async_result_return_type<
|
|
TargetAsyncResult,
|
|
typename void_type<
|
|
typename TargetAsyncResult::return_type
|
|
>::type>
|
|
{
|
|
typedef typename TargetAsyncResult::return_type return_type;
|
|
};
|
|
|
|
} // namespace detail
|
|
|
|
template <typename T, typename Executor, typename Signature>
|
|
class async_result<immediate_executor_binder<T, Executor>, Signature> :
|
|
public detail::immediate_executor_binder_async_result_completion_handler_type<
|
|
async_result<T, Signature>, Executor>,
|
|
public detail::immediate_executor_binder_async_result_return_type<
|
|
async_result<T, Signature> >
|
|
{
|
|
public:
|
|
explicit async_result(immediate_executor_binder<T, Executor>& b)
|
|
: target_(b.get())
|
|
{
|
|
}
|
|
|
|
typename async_result<T, Signature>::return_type get()
|
|
{
|
|
return target_.get();
|
|
}
|
|
|
|
template <typename Initiation>
|
|
struct init_wrapper
|
|
{
|
|
template <typename Init>
|
|
init_wrapper(const Executor& e, ASIO_MOVE_ARG(Init) init)
|
|
: executor_(e),
|
|
initiation_(ASIO_MOVE_CAST(Init)(init))
|
|
{
|
|
}
|
|
|
|
#if defined(ASIO_HAS_VARIADIC_TEMPLATES)
|
|
|
|
template <typename Handler, typename... Args>
|
|
void operator()(
|
|
ASIO_MOVE_ARG(Handler) handler,
|
|
ASIO_MOVE_ARG(Args)... args)
|
|
{
|
|
ASIO_MOVE_CAST(Initiation)(initiation_)(
|
|
immediate_executor_binder<
|
|
typename decay<Handler>::type, Executor>(
|
|
executor_, ASIO_MOVE_CAST(Handler)(handler)),
|
|
ASIO_MOVE_CAST(Args)(args)...);
|
|
}
|
|
|
|
template <typename Handler, typename... Args>
|
|
void operator()(
|
|
ASIO_MOVE_ARG(Handler) handler,
|
|
ASIO_MOVE_ARG(Args)... args) const
|
|
{
|
|
initiation_(
|
|
immediate_executor_binder<
|
|
typename decay<Handler>::type, Executor>(
|
|
executor_, ASIO_MOVE_CAST(Handler)(handler)),
|
|
ASIO_MOVE_CAST(Args)(args)...);
|
|
}
|
|
|
|
#else // defined(ASIO_HAS_VARIADIC_TEMPLATES)
|
|
|
|
template <typename Handler>
|
|
void operator()(
|
|
ASIO_MOVE_ARG(Handler) handler)
|
|
{
|
|
ASIO_MOVE_CAST(Initiation)(initiation_)(
|
|
immediate_executor_binder<
|
|
typename decay<Handler>::type, Executor>(
|
|
executor_, ASIO_MOVE_CAST(Handler)(handler)));
|
|
}
|
|
|
|
template <typename Handler>
|
|
void operator()(
|
|
ASIO_MOVE_ARG(Handler) handler) const
|
|
{
|
|
initiation_(
|
|
immediate_executor_binder<
|
|
typename decay<Handler>::type, Executor>(
|
|
executor_, ASIO_MOVE_CAST(Handler)(handler)));
|
|
}
|
|
|
|
#define ASIO_PRIVATE_INIT_WRAPPER_DEF(n) \
|
|
template <typename Handler, ASIO_VARIADIC_TPARAMS(n)> \
|
|
void operator()( \
|
|
ASIO_MOVE_ARG(Handler) handler, \
|
|
ASIO_VARIADIC_MOVE_PARAMS(n)) \
|
|
{ \
|
|
ASIO_MOVE_CAST(Initiation)(initiation_)( \
|
|
immediate_executor_binder< \
|
|
typename decay<Handler>::type, Executor>( \
|
|
executor_, ASIO_MOVE_CAST(Handler)(handler)), \
|
|
ASIO_VARIADIC_MOVE_ARGS(n)); \
|
|
} \
|
|
\
|
|
template <typename Handler, ASIO_VARIADIC_TPARAMS(n)> \
|
|
void operator()( \
|
|
ASIO_MOVE_ARG(Handler) handler, \
|
|
ASIO_VARIADIC_MOVE_PARAMS(n)) const \
|
|
{ \
|
|
initiation_( \
|
|
immediate_executor_binder< \
|
|
typename decay<Handler>::type, Executor>( \
|
|
executor_, ASIO_MOVE_CAST(Handler)(handler)), \
|
|
ASIO_VARIADIC_MOVE_ARGS(n)); \
|
|
} \
|
|
/**/
|
|
ASIO_VARIADIC_GENERATE(ASIO_PRIVATE_INIT_WRAPPER_DEF)
|
|
#undef ASIO_PRIVATE_INIT_WRAPPER_DEF
|
|
|
|
#endif // defined(ASIO_HAS_VARIADIC_TEMPLATES)
|
|
|
|
Executor executor_;
|
|
Initiation initiation_;
|
|
};
|
|
|
|
#if defined(ASIO_HAS_VARIADIC_TEMPLATES)
|
|
|
|
template <typename Initiation, typename RawCompletionToken, typename... Args>
|
|
static ASIO_INITFN_DEDUCED_RESULT_TYPE(T, Signature,
|
|
(async_initiate<T, Signature>(
|
|
declval<init_wrapper<typename decay<Initiation>::type> >(),
|
|
declval<RawCompletionToken>().get(),
|
|
declval<ASIO_MOVE_ARG(Args)>()...)))
|
|
initiate(
|
|
ASIO_MOVE_ARG(Initiation) initiation,
|
|
ASIO_MOVE_ARG(RawCompletionToken) token,
|
|
ASIO_MOVE_ARG(Args)... args)
|
|
{
|
|
return async_initiate<T, Signature>(
|
|
init_wrapper<typename decay<Initiation>::type>(
|
|
token.get_immediate_executor(),
|
|
ASIO_MOVE_CAST(Initiation)(initiation)),
|
|
token.get(), ASIO_MOVE_CAST(Args)(args)...);
|
|
}
|
|
|
|
#else // defined(ASIO_HAS_VARIADIC_TEMPLATES)
|
|
|
|
template <typename Initiation, typename RawCompletionToken>
|
|
static ASIO_INITFN_DEDUCED_RESULT_TYPE(T, Signature,
|
|
(async_initiate<T, Signature>(
|
|
declval<init_wrapper<typename decay<Initiation>::type> >(),
|
|
declval<RawCompletionToken>().get())))
|
|
initiate(
|
|
ASIO_MOVE_ARG(Initiation) initiation,
|
|
ASIO_MOVE_ARG(RawCompletionToken) token)
|
|
{
|
|
return async_initiate<T, Signature>(
|
|
init_wrapper<typename decay<Initiation>::type>(
|
|
token.get_immediate_executor(),
|
|
ASIO_MOVE_CAST(Initiation)(initiation)),
|
|
token.get());
|
|
}
|
|
|
|
#define ASIO_PRIVATE_INITIATE_DEF(n) \
|
|
template <typename Initiation, typename RawCompletionToken, \
|
|
ASIO_VARIADIC_TPARAMS(n)> \
|
|
static ASIO_INITFN_DEDUCED_RESULT_TYPE(T, Signature, \
|
|
(async_initiate<T, Signature>( \
|
|
declval<init_wrapper<typename decay<Initiation>::type> >(), \
|
|
declval<RawCompletionToken>().get(), \
|
|
ASIO_VARIADIC_MOVE_DECLVAL(n)))) \
|
|
initiate( \
|
|
ASIO_MOVE_ARG(Initiation) initiation, \
|
|
ASIO_MOVE_ARG(RawCompletionToken) token, \
|
|
ASIO_VARIADIC_MOVE_PARAMS(n)) \
|
|
{ \
|
|
return async_initiate<T, Signature>( \
|
|
init_wrapper<typename decay<Initiation>::type>( \
|
|
token.get_immediate_executor(), \
|
|
ASIO_MOVE_CAST(Initiation)(initiation)), \
|
|
token.get(), ASIO_VARIADIC_MOVE_ARGS(n)); \
|
|
} \
|
|
/**/
|
|
ASIO_VARIADIC_GENERATE(ASIO_PRIVATE_INITIATE_DEF)
|
|
#undef ASIO_PRIVATE_INITIATE_DEF
|
|
|
|
#endif // defined(ASIO_HAS_VARIADIC_TEMPLATES)
|
|
|
|
private:
|
|
async_result(const async_result&) ASIO_DELETED;
|
|
async_result& operator=(const async_result&) ASIO_DELETED;
|
|
|
|
async_result<T, Signature> target_;
|
|
};
|
|
|
|
template <template <typename, typename> class Associator,
|
|
typename T, typename Executor, typename DefaultCandidate>
|
|
struct associator<Associator,
|
|
immediate_executor_binder<T, Executor>,
|
|
DefaultCandidate>
|
|
: Associator<T, DefaultCandidate>
|
|
{
|
|
static typename Associator<T, DefaultCandidate>::type
|
|
get(const immediate_executor_binder<T, Executor>& b)
|
|
ASIO_NOEXCEPT
|
|
{
|
|
return Associator<T, DefaultCandidate>::get(b.get());
|
|
}
|
|
|
|
static ASIO_AUTO_RETURN_TYPE_PREFIX2(
|
|
typename Associator<T, DefaultCandidate>::type)
|
|
get(const immediate_executor_binder<T, Executor>& b,
|
|
const DefaultCandidate& c) ASIO_NOEXCEPT
|
|
ASIO_AUTO_RETURN_TYPE_SUFFIX((
|
|
Associator<T, DefaultCandidate>::get(b.get(), c)))
|
|
{
|
|
return Associator<T, DefaultCandidate>::get(b.get(), c);
|
|
}
|
|
};
|
|
|
|
template <typename T, typename Executor, typename Executor1>
|
|
struct associated_immediate_executor<
|
|
immediate_executor_binder<T, Executor>,
|
|
Executor1>
|
|
{
|
|
typedef Executor type;
|
|
|
|
static ASIO_AUTO_RETURN_TYPE_PREFIX(type) get(
|
|
const immediate_executor_binder<T, Executor>& b,
|
|
const Executor1& = Executor1()) ASIO_NOEXCEPT
|
|
ASIO_AUTO_RETURN_TYPE_SUFFIX((b.get_immediate_executor()))
|
|
{
|
|
return b.get_immediate_executor();
|
|
}
|
|
};
|
|
|
|
#endif // !defined(GENERATING_DOCUMENTATION)
|
|
|
|
} // namespace asio
|
|
|
|
#include "asio/detail/pop_options.hpp"
|
|
|
|
#endif // ASIO_BIND_IMMEDIATE_EXECUTOR_HPP
|