66 lines
1.7 KiB
C++
66 lines
1.7 KiB
C++
//
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// experimental/detached.hpp
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// ~~~~~~~~~~~~~~~~~~~~~~~~~
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//
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// Copyright (c) 2003-2018 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 ASIO_EXPERIMENTAL_DETACHED_HPP
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#define ASIO_EXPERIMENTAL_DETACHED_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 "asio/detail/config.hpp"
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#include <memory>
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#include "asio/detail/push_options.hpp"
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namespace asio {
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namespace experimental {
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/// Class used to specify that an asynchronous operation is detached.
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/**
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* The detached_t class is used to indicate that an asynchronous operation is
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* detached. That is, there is no completion handler waiting for the
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* operation's result. A detached_t object may be passed as a handler to an
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* asynchronous operation, typically using the special value
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* @c asio::experimental::detached. For example:
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* @code my_socket.async_send(my_buffer, asio::experimental::detached);
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* @endcode
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*/
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class detached_t
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{
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public:
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/// Constructor.
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ASIO_CONSTEXPR detached_t()
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{
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}
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};
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/// A special value, similar to std::nothrow.
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/**
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* See the documentation for asio::experimental::detached_t for a usage
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* example.
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*/
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#if defined(ASIO_HAS_CONSTEXPR) || defined(GENERATING_DOCUMENTATION)
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constexpr detached_t detached;
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#elif defined(ASIO_MSVC)
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__declspec(selectany) detached_t detached;
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#endif
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} // namespace experimental
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} // namespace asio
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#include "asio/detail/pop_options.hpp"
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#include "asio/experimental/impl/detached.hpp"
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#endif // ASIO_EXPERIMENTAL_DETACHED_HPP
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