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- //
- // handler_continuation_hook.hpp
- // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- //
- // Copyright (c) 2003-2021 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_HANDLER_CONTINUATION_HOOK_HPP
- #define BOOST_ASIO_HANDLER_CONTINUATION_HOOK_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/push_options.hpp>
- namespace boost {
- namespace asio {
- /// Default continuation function for handlers.
- /**
- * Asynchronous operations may represent a continuation of the asynchronous
- * control flow associated with the current handler. The implementation can use
- * this knowledge to optimise scheduling of the handler.
- *
- * Implement asio_handler_is_continuation for your own handlers to indicate
- * when a handler represents a continuation.
- *
- * The default implementation of the continuation hook returns <tt>false</tt>.
- *
- * @par Example
- * @code
- * class my_handler;
- *
- * bool asio_handler_is_continuation(my_handler* context)
- * {
- * return true;
- * }
- * @endcode
- */
- inline bool asio_handler_is_continuation(...)
- {
- return false;
- }
- } // namespace asio
- } // namespace boost
- #include <boost/asio/detail/pop_options.hpp>
- #endif // BOOST_ASIO_HANDLER_CONTINUATION_HOOK_HPP
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