1 | // |
2 | // detail/handler_cont_helpers.hpp |
3 | // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
4 | // |
5 | // Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com) |
6 | // |
7 | // Distributed under the Boost Software License, Version 1.0. (See accompanying |
8 | // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
9 | // |
10 | |
11 | #ifndef BOOST_ASIO_DETAIL_HANDLER_CONT_HELPERS_HPP |
12 | #define BOOST_ASIO_DETAIL_HANDLER_CONT_HELPERS_HPP |
13 | |
14 | #if defined(_MSC_VER) && (_MSC_VER >= 1200) |
15 | # pragma once |
16 | #endif // defined(_MSC_VER) && (_MSC_VER >= 1200) |
17 | |
18 | #include <boost/asio/detail/config.hpp> |
19 | #include <boost/asio/detail/addressof.hpp> |
20 | #include <boost/asio/handler_continuation_hook.hpp> |
21 | |
22 | #include <boost/asio/detail/push_options.hpp> |
23 | |
24 | // Calls to asio_handler_is_continuation must be made from a namespace that |
25 | // does not contain overloads of this function. This namespace is defined here |
26 | // for that purpose. |
27 | namespace boost_asio_handler_cont_helpers { |
28 | |
29 | template <typename Context> |
30 | inline bool is_continuation(Context& context) |
31 | { |
32 | #if !defined(BOOST_ASIO_HAS_HANDLER_HOOKS) |
33 | return false; |
34 | #else |
35 | using boost::asio::asio_handler_is_continuation; |
36 | return asio_handler_is_continuation( |
37 | boost::asio::detail::addressof(context)); |
38 | #endif |
39 | } |
40 | |
41 | } // namespace boost_asio_handler_cont_helpers |
42 | |
43 | #include <boost/asio/detail/pop_options.hpp> |
44 | |
45 | #endif // BOOST_ASIO_DETAIL_HANDLER_CONT_HELPERS_HPP |
46 | |