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include/asio/detail/impl/service_registry.hpp
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117
include/asio/detail/impl/service_registry.hpp
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//
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// detail/impl/service_registry.hpp
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// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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//
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// Copyright (c) 2003-2025 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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#ifndef ASIO_DETAIL_IMPL_SERVICE_REGISTRY_HPP
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#define ASIO_DETAIL_IMPL_SERVICE_REGISTRY_HPP
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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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#include "asio/detail/push_options.hpp"
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namespace asio {
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namespace detail {
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template <typename Service>
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Service& service_registry::use_service()
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{
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execution_context::service::key key;
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init_key<Service>(key, 0);
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factory_type factory = &service_registry::create<Service, execution_context>;
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return *static_cast<Service*>(do_use_service(key, factory, &owner_));
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}
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template <typename Service>
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Service& service_registry::use_service(io_context& owner)
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{
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execution_context::service::key key;
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init_key<Service>(key, 0);
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factory_type factory = &service_registry::create<Service, io_context>;
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return *static_cast<Service*>(do_use_service(key, factory, &owner));
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}
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template <typename Service, typename... Args>
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Service& service_registry::make_service(Args&&... args)
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{
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auto_service_ptr new_service =
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{ create<Service, execution_context>(owner_,
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&owner_, static_cast<Args&&>(args)...) };
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add_service(static_cast<Service*>(new_service.ptr_));
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Service& result = *static_cast<Service*>(new_service.ptr_);
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new_service.ptr_ = 0;
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return result;
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}
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template <typename Service>
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void service_registry::add_service(Service* new_service)
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{
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execution_context::service::key key;
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init_key<Service>(key, 0);
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return do_add_service(key, new_service);
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}
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template <typename Service>
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bool service_registry::has_service() const
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{
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execution_context::service::key key;
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init_key<Service>(key, 0);
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return do_has_service(key);
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}
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template <typename Service>
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inline void service_registry::init_key(
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execution_context::service::key& key, ...)
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{
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init_key_from_id(key, Service::id);
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}
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#if !defined(ASIO_NO_TYPEID)
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template <typename Service>
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void service_registry::init_key(execution_context::service::key& key,
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enable_if_t<is_base_of<typename Service::key_type, Service>::value>*)
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{
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key.type_info_ = &typeid(typeid_wrapper<Service>);
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key.id_ = 0;
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}
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template <typename Service>
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void service_registry::init_key_from_id(execution_context::service::key& key,
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const service_id<Service>& /*id*/)
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{
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key.type_info_ = &typeid(typeid_wrapper<Service>);
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key.id_ = 0;
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}
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#endif // !defined(ASIO_NO_TYPEID)
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template <typename Service, typename Owner, typename... Args>
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execution_context::service* service_registry::create(
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execution_context& context, void* owner, Args&&... args)
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{
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Service* svc = allocate_object<Service>(
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execution_context::allocator<void>(context),
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*static_cast<Owner*>(owner), static_cast<Args&&>(args)...);
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svc->destroy_ = &service_registry::destroy_allocated<Service>;
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return svc;
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}
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template <typename Service>
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void service_registry::destroy_allocated(execution_context::service* service)
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{
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deallocate_object(execution_context::allocator<void>(service->owner_),
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static_cast<Service*>(service));
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}
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} // namespace detail
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} // namespace asio
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#include "asio/detail/pop_options.hpp"
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#endif // ASIO_DETAIL_IMPL_SERVICE_REGISTRY_HPP
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