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- //
- // detail/handler_invoke_helpers.hpp
- // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- //
- // Copyright (c) 2003-2022 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 ASIO_DETAIL_HANDLER_INVOKE_HELPERS_HPP
- #define ASIO_DETAIL_HANDLER_INVOKE_HELPERS_HPP
- #if defined(_MSC_VER) && (_MSC_VER >= 1200)
- # pragma once
- #endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
- #include "asio/detail/config.hpp"
- #include "asio/detail/memory.hpp"
- #include "asio/handler_invoke_hook.hpp"
- #include "asio/detail/push_options.hpp"
- // Calls to asio_handler_invoke must be made from a namespace that does not
- // contain overloads of this function. The asio_handler_invoke_helpers
- // namespace is defined here for that purpose.
- namespace asio_handler_invoke_helpers {
- #if defined(ASIO_NO_DEPRECATED)
- template <typename Function, typename Context>
- inline void error_if_hook_is_defined(Function& function, Context& context)
- {
- using asio::asio_handler_invoke;
- // If you get an error here it is because some of your handlers still
- // overload asio_handler_invoke, but this hook is no longer used.
- (void)static_cast<asio::asio_handler_invoke_is_no_longer_used>(
- asio_handler_invoke(function, asio::detail::addressof(context)));
- }
- #endif // defined(ASIO_NO_DEPRECATED)
- template <typename Function, typename Context>
- inline void invoke(Function& function, Context& context)
- {
- #if !defined(ASIO_HAS_HANDLER_HOOKS)
- Function tmp(function);
- tmp();
- #elif defined(ASIO_NO_DEPRECATED)
- // The asio_handler_invoke hook is no longer used to invoke the function.
- (void)&error_if_hook_is_defined<Function, Context>;
- (void)context;
- function();
- #else
- using asio::asio_handler_invoke;
- asio_handler_invoke(function, asio::detail::addressof(context));
- #endif
- }
- template <typename Function, typename Context>
- inline void invoke(const Function& function, Context& context)
- {
- #if !defined(ASIO_HAS_HANDLER_HOOKS)
- Function tmp(function);
- tmp();
- #elif defined(ASIO_NO_DEPRECATED)
- // The asio_handler_invoke hook is no longer used to invoke the function.
- (void)&error_if_hook_is_defined<const Function, Context>;
- (void)context;
- Function tmp(function);
- tmp();
- #else
- using asio::asio_handler_invoke;
- asio_handler_invoke(function, asio::detail::addressof(context));
- #endif
- }
- } // namespace asio_handler_invoke_helpers
- #include "asio/detail/pop_options.hpp"
- #endif // ASIO_DETAIL_HANDLER_INVOKE_HELPERS_HPP
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