81 lines
		
	
	
		
			2.5 KiB
		
	
	
	
		
			C++
		
	
	
	
			
		
		
	
	
			81 lines
		
	
	
		
			2.5 KiB
		
	
	
	
		
			C++
		
	
	
	
| //
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| // detail/handler_invoke_helpers.hpp
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| // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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| //
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| // Copyright (c) 2003-2023 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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| 
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| #ifndef ASIO_DETAIL_HANDLER_INVOKE_HELPERS_HPP
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| #define ASIO_DETAIL_HANDLER_INVOKE_HELPERS_HPP
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| 
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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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| 
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| #include "asio/detail/config.hpp"
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| #include "asio/detail/memory.hpp"
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| #include "asio/handler_invoke_hook.hpp"
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| 
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| #include "asio/detail/push_options.hpp"
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| 
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| // Calls to asio_handler_invoke must be made from a namespace that does not
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| // contain overloads of this function. The asio_handler_invoke_helpers
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| // namespace is defined here for that purpose.
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| namespace asio_handler_invoke_helpers {
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| 
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| #if defined(ASIO_NO_DEPRECATED)
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| template <typename Function, typename Context>
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| inline void error_if_hook_is_defined(Function& function, Context& context)
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| {
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|   using asio::asio_handler_invoke;
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|   // If you get an error here it is because some of your handlers still
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|   // overload asio_handler_invoke, but this hook is no longer used.
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|   (void)static_cast<asio::asio_handler_invoke_is_no_longer_used>(
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|     asio_handler_invoke(function, asio::detail::addressof(context)));
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| }
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| #endif // defined(ASIO_NO_DEPRECATED)
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| 
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| template <typename Function, typename Context>
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| inline void invoke(Function& function, Context& context)
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| {
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| #if !defined(ASIO_HAS_HANDLER_HOOKS)
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|   Function tmp(function);
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|   tmp();
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| #elif defined(ASIO_NO_DEPRECATED)
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|   // The asio_handler_invoke hook is no longer used to invoke the function.
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|   (void)&error_if_hook_is_defined<Function, Context>;
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|   (void)context;
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|   function();
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| #else
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|   using asio::asio_handler_invoke;
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|   asio_handler_invoke(function, asio::detail::addressof(context));
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| #endif
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| }
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| 
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| template <typename Function, typename Context>
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| inline void invoke(const Function& function, Context& context)
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| {
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| #if !defined(ASIO_HAS_HANDLER_HOOKS)
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|   Function tmp(function);
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|   tmp();
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| #elif defined(ASIO_NO_DEPRECATED)
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|   // The asio_handler_invoke hook is no longer used to invoke the function.
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|   (void)&error_if_hook_is_defined<const Function, Context>;
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|   (void)context;
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|   Function tmp(function);
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|   tmp();
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| #else
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|   using asio::asio_handler_invoke;
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|   asio_handler_invoke(function, asio::detail::addressof(context));
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| #endif
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| }
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| 
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| } // namespace asio_handler_invoke_helpers
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| 
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| #include "asio/detail/pop_options.hpp"
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| 
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| #endif // ASIO_DETAIL_HANDLER_INVOKE_HELPERS_HPP
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