projects / ceph.git / blame
| Commit | Line | Data |
|---|---|---|
| b32b8144 FG |
1 | // |
| 2 | // impl/defer.hpp | |
| 3 | // ~~~~~~~~~~~~~~ | |
| 4 | // | |
| 5 | // Copyright (c) 2003-2017 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_IMPL_DEFER_HPP | |
| 12 | #define BOOST_ASIO_IMPL_DEFER_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/associated_allocator.hpp> | |
| 20 | #include <boost/asio/associated_executor.hpp> | |
| 21 | #include <boost/asio/detail/work_dispatcher.hpp> | |
| 22 | ||
| 23 | #include <boost/asio/detail/push_options.hpp> | |
| 24 | ||
| 25 | namespace boost { | |
| 26 | namespace asio { | |
| 27 | ||
| 28 | template <typename CompletionToken> | |
| 29 | BOOST_ASIO_INITFN_RESULT_TYPE(CompletionToken, void()) defer( | |
| 30 | BOOST_ASIO_MOVE_ARG(CompletionToken) token) | |
| 31 | { | |
| 32 | typedef BOOST_ASIO_HANDLER_TYPE(CompletionToken, void()) handler; | |
| 33 | ||
| 34 | async_completion<CompletionToken, void()> init(token); | |
| 35 | ||
| 36 | typename associated_executor<handler>::type ex( | |
| 37 | (get_associated_executor)(init.completion_handler)); | |
| 38 | ||
| 39 | typename associated_allocator<handler>::type alloc( | |
| 40 | (get_associated_allocator)(init.completion_handler)); | |
| 41 | ||
| 42 | ex.defer(BOOST_ASIO_MOVE_CAST(handler)(init.completion_handler), alloc); | |
| 43 | ||
| 44 | return init.result.get(); | |
| 45 | } | |
| 46 | ||
| 47 | template <typename Executor, typename CompletionToken> | |
| 48 | BOOST_ASIO_INITFN_RESULT_TYPE(CompletionToken, void()) defer( | |
| 49 | const Executor& ex, BOOST_ASIO_MOVE_ARG(CompletionToken) token, | |
| 50 | typename enable_if<is_executor<Executor>::value>::type*) | |
| 51 | { | |
| 52 | typedef BOOST_ASIO_HANDLER_TYPE(CompletionToken, void()) handler; | |
| 53 | ||
| 54 | async_completion<CompletionToken, void()> init(token); | |
| 55 | ||
| 56 | typename associated_allocator<handler>::type alloc( | |
| 57 | (get_associated_allocator)(init.completion_handler)); | |
| 58 | ||
| 59 | ex.defer(detail::work_dispatcher<handler>(init.completion_handler), alloc); | |
| 60 | ||
| 61 | return init.result.get(); | |
| 62 | } | |
| 63 | ||
| 64 | template <typename ExecutionContext, typename CompletionToken> | |
| 65 | inline BOOST_ASIO_INITFN_RESULT_TYPE(CompletionToken, void()) defer( | |
| 66 | ExecutionContext& ctx, BOOST_ASIO_MOVE_ARG(CompletionToken) token, | |
| 67 | typename enable_if<is_convertible< | |
| 68 | ExecutionContext&, execution_context&>::value>::type*) | |
| 69 | { | |
| 70 | return (defer)(ctx.get_executor(), | |
| 71 | BOOST_ASIO_MOVE_CAST(CompletionToken)(token)); | |
| 72 | } | |
| 73 | ||
| 74 | } // namespace asio | |
| 75 | } // namespace boost | |
| 76 | ||
| 77 | #include <boost/asio/detail/pop_options.hpp> | |
| 78 | ||
| 79 | #endif // BOOST_ASIO_IMPL_DEFER_HPP |