diff options
Diffstat (limited to '3rdParty/Boost/src/boost/asio/async_result.hpp')
-rw-r--r-- | 3rdParty/Boost/src/boost/asio/async_result.hpp | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/3rdParty/Boost/src/boost/asio/async_result.hpp b/3rdParty/Boost/src/boost/asio/async_result.hpp new file mode 100644 index 0000000..7a24ce5 --- /dev/null +++ b/3rdParty/Boost/src/boost/asio/async_result.hpp @@ -0,0 +1,96 @@ +// +// async_result.hpp +// ~~~~~~~~~~~~~~~~ +// +// Copyright (c) 2003-2014 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_ASYNC_RESULT_HPP +#define BOOST_ASIO_ASYNC_RESULT_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/handler_type.hpp> + +#include <boost/asio/detail/push_options.hpp> + +namespace boost { +namespace asio { + +/// An interface for customising the behaviour of an initiating function. +/** + * This template may be specialised for user-defined handler types. + */ +template <typename Handler> +class async_result +{ +public: + /// The return type of the initiating function. + typedef void type; + + /// Construct an async result from a given handler. + /** + * When using a specalised async_result, the constructor has an opportunity + * to initialise some state associated with the handler, which is then + * returned from the initiating function. + */ + explicit async_result(Handler&) + { + } + + /// Obtain the value to be returned from the initiating function. + type get() + { + } +}; + +namespace detail { + +// Helper template to deduce the true type of a handler, capture a local copy +// of the handler, and then create an async_result for the handler. +template <typename Handler, typename Signature> +struct async_result_init +{ + explicit async_result_init(BOOST_ASIO_MOVE_ARG(Handler) orig_handler) + : handler(BOOST_ASIO_MOVE_CAST(Handler)(orig_handler)), + result(handler) + { + } + + typename handler_type<Handler, Signature>::type handler; + async_result<typename handler_type<Handler, Signature>::type> result; +}; + +template <typename Handler, typename Signature> +struct async_result_type_helper +{ + typedef typename async_result< + typename handler_type<Handler, Signature>::type + >::type type; +}; + +} // namespace detail +} // namespace asio +} // namespace boost + +#include <boost/asio/detail/pop_options.hpp> + +#if defined(GENERATING_DOCUMENTATION) +# define BOOST_ASIO_INITFN_RESULT_TYPE(h, sig) \ + void_or_deduced +#elif defined(_MSC_VER) && (_MSC_VER < 1500) +# define BOOST_ASIO_INITFN_RESULT_TYPE(h, sig) \ + typename ::boost::asio::detail::async_result_type_helper<h, sig>::type +#else +# define BOOST_ASIO_INITFN_RESULT_TYPE(h, sig) \ + typename ::boost::asio::async_result< \ + typename ::boost::asio::handler_type<h, sig>::type>::type +#endif + +#endif // BOOST_ASIO_ASYNC_RESULT_HPP |