57 lines
1.5 KiB
C++
57 lines
1.5 KiB
C++
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//
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// handler_continuation_hook.hpp
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// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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//
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// Copyright (c) 2003-2016 Christopher M. Kohlhoff (chris at kohlhoff dot com)
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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#ifndef BOOST_ASIO_HANDLER_CONTINUATION_HOOK_HPP
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#define BOOST_ASIO_HANDLER_CONTINUATION_HOOK_HPP
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#if defined(_MSC_VER) && (_MSC_VER >= 1200)
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# pragma once
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#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
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#include <boost/asio/detail/config.hpp>
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#include <boost/asio/detail/push_options.hpp>
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namespace boost {
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namespace asio {
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/// Default continuation function for handlers.
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/**
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* Asynchronous operations may represent a continuation of the asynchronous
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* control flow associated with the current handler. The implementation can use
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* this knowledge to optimise scheduling of the handler.
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*
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* Implement asio_handler_is_continuation for your own handlers to indicate
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* when a handler represents a continuation.
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*
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* The default implementation of the continuation hook returns <tt>false</tt>.
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*
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* @par Example
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* @code
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* class my_handler;
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*
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* bool asio_handler_is_continuation(my_handler* context)
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* {
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* return true;
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* }
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* @endcode
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*/
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inline bool asio_handler_is_continuation(...)
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{
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return false;
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}
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} // namespace asio
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} // namespace boost
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#include <boost/asio/detail/pop_options.hpp>
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#endif // BOOST_ASIO_HANDLER_CONTINUATION_HOOK_HPP
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