127 lines
3.4 KiB
C++
127 lines
3.4 KiB
C++
//
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// resolver_service.hpp
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// ~~~~~~~~~~~~~~~~~~~~
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//
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// Copyright (c) 2003-2006 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_RESOLVER_SERVICE_HPP
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#define ASIO_RESOLVER_SERVICE_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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#include "asio/io_service.hpp"
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#include "asio/detail/resolver_service.hpp"
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namespace asio {
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/// Default service implementation for a resolver.
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template <typename Protocol>
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class resolver_service
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: public asio::io_service::service
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{
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public:
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/// The protocol type.
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typedef Protocol protocol_type;
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/// The endpoint type.
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typedef typename Protocol::endpoint endpoint_type;
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/// The query type.
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typedef typename Protocol::resolver_query query_type;
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/// The iterator type.
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typedef typename Protocol::resolver_iterator iterator_type;
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private:
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// The type of the platform-specific implementation.
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typedef detail::resolver_service<Protocol> service_impl_type;
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public:
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/// The type of a resolver implementation.
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#if defined(GENERATING_DOCUMENTATION)
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typedef implementation_defined implementation_type;
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#else
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typedef typename service_impl_type::implementation_type implementation_type;
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#endif
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/// Construct a new resolver service for the specified io_service.
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explicit resolver_service(asio::io_service& io_service)
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: asio::io_service::service(io_service),
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service_impl_(asio::use_service<service_impl_type>(io_service))
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{
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}
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/// Destroy all user-defined handler objects owned by the service.
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void shutdown_service()
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{
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}
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/// Construct a new resolver implementation.
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void construct(implementation_type& impl)
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{
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service_impl_.construct(impl);
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}
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/// Destroy a resolver implementation.
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void destroy(implementation_type& impl)
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{
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service_impl_.destroy(impl);
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}
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/// Cancel pending asynchronous operations.
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void cancel(implementation_type& impl)
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{
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service_impl_.cancel(impl);
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}
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/// Resolve a query to a list of entries.
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template <typename Error_Handler>
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iterator_type resolve(implementation_type& impl, const query_type& query,
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Error_Handler error_handler)
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{
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return service_impl_.resolve(impl, query, error_handler);
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}
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/// Asynchronously resolve a query to a list of entries.
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template <typename Handler>
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void async_resolve(implementation_type& impl, const query_type& query,
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Handler handler)
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{
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service_impl_.async_resolve(impl, query, handler);
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}
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/// Resolve an endpoint to a list of entries.
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template <typename Error_Handler>
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iterator_type resolve(implementation_type& impl,
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const endpoint_type& endpoint, Error_Handler error_handler)
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{
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return service_impl_.resolve(impl, endpoint, error_handler);
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}
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/// Asynchronously resolve an endpoint to a list of entries.
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template <typename Handler>
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void async_resolve(implementation_type& impl, const endpoint_type& endpoint,
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Handler handler)
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{
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return service_impl_.async_resolve(impl, endpoint, handler);
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}
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private:
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// The service that provides the platform-specific implementation.
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service_impl_type& service_impl_;
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};
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} // namespace asio
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#include "asio/detail/pop_options.hpp"
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#endif // ASIO_RESOLVER_SERVICE_HPP
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