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1 //
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2 // detail/handler_invoke_helpers.hpp
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3 // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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4 //
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5 // Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
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6 //
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7 // Distributed under the Boost Software License, Version 1.0. (See accompanying
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8 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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9 //
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10
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11 #ifndef BOOST_ASIO_DETAIL_HANDLER_INVOKE_HELPERS_HPP
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12 #define BOOST_ASIO_DETAIL_HANDLER_INVOKE_HELPERS_HPP
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13
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14 #if defined(_MSC_VER) && (_MSC_VER >= 1200)
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15 # pragma once
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16 #endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
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17
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18 #include <boost/asio/detail/config.hpp>
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19 #include <boost/asio/detail/addressof.hpp>
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20 #include <boost/asio/handler_invoke_hook.hpp>
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21
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22 #include <boost/asio/detail/push_options.hpp>
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23
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24 // Calls to asio_handler_invoke must be made from a namespace that does not
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25 // contain overloads of this function. The boost_asio_handler_invoke_helpers
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26 // namespace is defined here for that purpose.
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27 namespace boost_asio_handler_invoke_helpers {
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28
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29 template <typename Function, typename Context>
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30 inline void invoke(Function& function, Context& context)
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31 {
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32 #if !defined(BOOST_ASIO_HAS_HANDLER_HOOKS)
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33 Function tmp(function);
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34 tmp();
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35 #else
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36 using boost::asio::asio_handler_invoke;
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37 asio_handler_invoke(function, boost::asio::detail::addressof(context));
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38 #endif
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39 }
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40
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41 template <typename Function, typename Context>
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42 inline void invoke(const Function& function, Context& context)
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43 {
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44 #if !defined(BOOST_ASIO_HAS_HANDLER_HOOKS)
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45 Function tmp(function);
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46 tmp();
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47 #else
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48 using boost::asio::asio_handler_invoke;
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49 asio_handler_invoke(function, boost::asio::detail::addressof(context));
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50 #endif
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51 }
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52
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53 } // namespace boost_asio_handler_invoke_helpers
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54
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55 #include <boost/asio/detail/pop_options.hpp>
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56
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57 #endif // BOOST_ASIO_DETAIL_HANDLER_INVOKE_HELPERS_HPP
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