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//
// experimental/detached.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2018 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_EXPERIMENTAL_DETACHED_HPP
#define BOOST_ASIO_EXPERIMENTAL_DETACHED_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#include <memory>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace experimental {
/// Class used to specify that an asynchronous operation is detached.
/**
* The detached_t class is used to indicate that an asynchronous operation is
* detached. That is, there is no completion handler waiting for the
* operation's result. A detached_t object may be passed as a handler to an
* asynchronous operation, typically using the special value
* @c boost::asio::experimental::detached. For example:
* @code my_socket.async_send(my_buffer, boost::asio::experimental::detached);
* @endcode
*/
class detached_t
{
public:
/// Constructor.
BOOST_ASIO_CONSTEXPR detached_t()
{
}
};
/// A special value, similar to std::nothrow.
/**
* See the documentation for boost::asio::experimental::detached_t for a usage
* example.
*/
#if defined(BOOST_ASIO_HAS_CONSTEXPR) || defined(GENERATING_DOCUMENTATION)
constexpr detached_t detached;
#elif defined(BOOST_ASIO_MSVC)
__declspec(selectany) detached_t detached;
#endif
} // namespace experimental
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#include <boost/asio/experimental/impl/detached.hpp>
#endif // BOOST_ASIO_EXPERIMENTAL_DETACHED_HPP
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