boost/beast/core/detail/remap_post_to_defer.hpp
//
// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail 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)
//
// Official repository: https://github.com/boostorg/beast
//
#ifndef BOOST_BEAST_DETAIL_REMAP_POST_TO_DEFER_HPP
#define BOOST_BEAST_DETAIL_REMAP_POST_TO_DEFER_HPP
#include <boost/asio/is_executor.hpp>
#include <boost/core/empty_value.hpp>
#include <type_traits>
#include <utility>
namespace boost {
namespace beast {
namespace detail {
template<class Executor>
class remap_post_to_defer
: private boost::empty_value<Executor>
{
BOOST_STATIC_ASSERT(
net::is_executor<Executor>::value);
Executor const&
ex() const noexcept
{
return this->get();
}
public:
remap_post_to_defer(
remap_post_to_defer&&) = default;
remap_post_to_defer(
remap_post_to_defer const&) = default;
explicit
remap_post_to_defer(
Executor const& ex)
: boost::empty_value<Executor>(
boost::empty_init_t{}, ex)
{
}
bool
operator==(
remap_post_to_defer const& other) const noexcept
{
return ex() == other.ex();
}
bool
operator!=(
remap_post_to_defer const& other) const noexcept
{
return ex() != other.ex();
}
decltype(std::declval<Executor const&>().context())
context() const noexcept
{
return ex().context();
}
void
on_work_started() const noexcept
{
ex().on_work_started();
}
void
on_work_finished() const noexcept
{
ex().on_work_finished();
}
template<class F, class A>
void
dispatch(F&& f, A const& a) const
{
ex().dispatch(std::forward<F>(f), a);
}
template<class F, class A>
void
post(F&& f, A const& a) const
{
ex().defer(std::forward<F>(f), a);
}
template<class F, class A>
void
defer(F&& f, A const& a) const
{
ex().defer(std::forward<F>(f), a);
}
};
} // detail
} // beast
} // boost
#endif