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- //
- // detail/impl/service_registry.hpp
- // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- //
- // Copyright (c) 2003-2021 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_DETAIL_IMPL_SERVICE_REGISTRY_HPP
- #define BOOST_ASIO_DETAIL_IMPL_SERVICE_REGISTRY_HPP
- #if defined(_MSC_VER) && (_MSC_VER >= 1200)
- # pragma once
- #endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
- #include <boost/asio/detail/push_options.hpp>
- namespace boost {
- namespace asio {
- namespace detail {
- template <typename Service>
- Service& service_registry::use_service()
- {
- execution_context::service::key key;
- init_key<Service>(key, 0);
- factory_type factory = &service_registry::create<Service, execution_context>;
- return *static_cast<Service*>(do_use_service(key, factory, &owner_));
- }
- template <typename Service>
- Service& service_registry::use_service(io_context& owner)
- {
- execution_context::service::key key;
- init_key<Service>(key, 0);
- factory_type factory = &service_registry::create<Service, io_context>;
- return *static_cast<Service*>(do_use_service(key, factory, &owner));
- }
- template <typename Service>
- void service_registry::add_service(Service* new_service)
- {
- execution_context::service::key key;
- init_key<Service>(key, 0);
- return do_add_service(key, new_service);
- }
- template <typename Service>
- bool service_registry::has_service() const
- {
- execution_context::service::key key;
- init_key<Service>(key, 0);
- return do_has_service(key);
- }
- template <typename Service>
- inline void service_registry::init_key(
- execution_context::service::key& key, ...)
- {
- init_key_from_id(key, Service::id);
- }
- #if !defined(BOOST_ASIO_NO_TYPEID)
- template <typename Service>
- void service_registry::init_key(execution_context::service::key& key,
- typename enable_if<
- is_base_of<typename Service::key_type, Service>::value>::type*)
- {
- key.type_info_ = &typeid(typeid_wrapper<Service>);
- key.id_ = 0;
- }
- template <typename Service>
- void service_registry::init_key_from_id(execution_context::service::key& key,
- const service_id<Service>& /*id*/)
- {
- key.type_info_ = &typeid(typeid_wrapper<Service>);
- key.id_ = 0;
- }
- #endif // !defined(BOOST_ASIO_NO_TYPEID)
- template <typename Service, typename Owner>
- execution_context::service* service_registry::create(void* owner)
- {
- return new Service(*static_cast<Owner*>(owner));
- }
- } // namespace detail
- } // namespace asio
- } // namespace boost
- #include <boost/asio/detail/pop_options.hpp>
- #endif // BOOST_ASIO_DETAIL_IMPL_SERVICE_REGISTRY_HPP
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