mirror of
https://github.com/yuzu-emu/ext-boost.git
synced 2024-12-23 08:15:32 +00:00
116 lines
3.3 KiB
C++
116 lines
3.3 KiB
C++
//
|
|
// detail/handler_work.hpp
|
|
// ~~~~~~~~~~~~~~~~~~~~~~~
|
|
//
|
|
// Copyright (c) 2003-2019 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_DETAIL_HANDLER_WORK_HPP
|
|
#define BOOST_ASIO_DETAIL_HANDLER_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/associated_executor.hpp>
|
|
#include <boost/asio/detail/handler_invoke_helpers.hpp>
|
|
|
|
#include <boost/asio/detail/push_options.hpp>
|
|
|
|
namespace boost {
|
|
namespace asio {
|
|
namespace detail {
|
|
|
|
// A helper class template to allow completion handlers to be dispatched
|
|
// through either the new executors framework or the old invocaton hook. The
|
|
// primary template uses the new executors framework.
|
|
template <typename Handler,
|
|
typename IoExecutor = system_executor, typename HandlerExecutor
|
|
= typename associated_executor<Handler, IoExecutor>::type>
|
|
class handler_work
|
|
{
|
|
public:
|
|
explicit handler_work(Handler& handler) BOOST_ASIO_NOEXCEPT
|
|
: io_executor_(),
|
|
executor_(boost::asio::get_associated_executor(handler, io_executor_))
|
|
{
|
|
}
|
|
|
|
handler_work(Handler& handler, const IoExecutor& io_ex) BOOST_ASIO_NOEXCEPT
|
|
: io_executor_(io_ex),
|
|
executor_(boost::asio::get_associated_executor(handler, io_executor_))
|
|
{
|
|
}
|
|
|
|
static void start(Handler& handler) BOOST_ASIO_NOEXCEPT
|
|
{
|
|
HandlerExecutor ex(boost::asio::get_associated_executor(handler));
|
|
ex.on_work_started();
|
|
}
|
|
|
|
static void start(Handler& handler,
|
|
const IoExecutor& io_ex) BOOST_ASIO_NOEXCEPT
|
|
{
|
|
HandlerExecutor ex(boost::asio::get_associated_executor(handler, io_ex));
|
|
ex.on_work_started();
|
|
io_ex.on_work_started();
|
|
}
|
|
|
|
~handler_work()
|
|
{
|
|
io_executor_.on_work_finished();
|
|
executor_.on_work_finished();
|
|
}
|
|
|
|
template <typename Function>
|
|
void complete(Function& function, Handler& handler)
|
|
{
|
|
executor_.dispatch(BOOST_ASIO_MOVE_CAST(Function)(function),
|
|
boost::asio::get_associated_allocator(handler));
|
|
}
|
|
|
|
private:
|
|
// Disallow copying and assignment.
|
|
handler_work(const handler_work&);
|
|
handler_work& operator=(const handler_work&);
|
|
|
|
IoExecutor io_executor_;
|
|
HandlerExecutor executor_;
|
|
};
|
|
|
|
// This specialisation dispatches a handler through the old invocation hook.
|
|
// The specialisation is not strictly required for correctness, as the
|
|
// system_executor will dispatch through the hook anyway. However, by doing
|
|
// this we avoid an extra copy of the handler.
|
|
template <typename Handler>
|
|
class handler_work<Handler, system_executor, system_executor>
|
|
{
|
|
public:
|
|
explicit handler_work(Handler&) BOOST_ASIO_NOEXCEPT {}
|
|
static void start(Handler&) BOOST_ASIO_NOEXCEPT {}
|
|
~handler_work() {}
|
|
|
|
template <typename Function>
|
|
void complete(Function& function, Handler& handler)
|
|
{
|
|
boost_asio_handler_invoke_helpers::invoke(function, handler);
|
|
}
|
|
|
|
private:
|
|
// Disallow copying and assignment.
|
|
handler_work(const handler_work&);
|
|
handler_work& operator=(const handler_work&);
|
|
};
|
|
|
|
} // namespace detail
|
|
} // namespace asio
|
|
} // namespace boost
|
|
|
|
#include <boost/asio/detail/pop_options.hpp>
|
|
|
|
#endif // BOOST_ASIO_DETAIL_HANDLER_WORK_HPP
|