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153 lines
4.2 KiB
153 lines
4.2 KiB
// |
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// ip/resolver_service.hpp |
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// ~~~~~~~~~~~~~~~~~~~~~~~ |
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// |
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// Copyright (c) 2003-2011 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 BOOST_ASIO_IP_RESOLVER_SERVICE_HPP |
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#define BOOST_ASIO_IP_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 <boost/asio/detail/config.hpp> |
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#include <boost/system/error_code.hpp> |
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#include <boost/asio/detail/resolver_service.hpp> |
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#include <boost/asio/io_service.hpp> |
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#include <boost/asio/ip/basic_resolver_iterator.hpp> |
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#include <boost/asio/ip/basic_resolver_query.hpp> |
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#include <boost/asio/detail/push_options.hpp> |
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namespace boost { |
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namespace asio { |
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namespace ip { |
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/// Default service implementation for a resolver. |
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template <typename InternetProtocol> |
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class resolver_service |
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#if defined(GENERATING_DOCUMENTATION) |
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: public boost::asio::io_service::service |
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#else |
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: public boost::asio::detail::service_base< |
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resolver_service<InternetProtocol> > |
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#endif |
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{ |
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public: |
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#if defined(GENERATING_DOCUMENTATION) |
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/// The unique service identifier. |
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static boost::asio::io_service::id id; |
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#endif |
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/// The protocol type. |
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typedef InternetProtocol protocol_type; |
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/// The endpoint type. |
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typedef typename InternetProtocol::endpoint endpoint_type; |
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/// The query type. |
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typedef basic_resolver_query<InternetProtocol> query_type; |
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/// The iterator type. |
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typedef basic_resolver_iterator<InternetProtocol> iterator_type; |
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private: |
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// The type of the platform-specific implementation. |
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typedef boost::asio::detail::resolver_service<InternetProtocol> |
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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(boost::asio::io_service& io_service) |
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: boost::asio::detail::service_base< |
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resolver_service<InternetProtocol> >(io_service), |
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service_impl_(io_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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iterator_type resolve(implementation_type& impl, const query_type& query, |
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boost::system::error_code& ec) |
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{ |
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return service_impl_.resolve(impl, query, ec); |
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} |
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/// Asynchronously resolve a query to a list of entries. |
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template <typename ResolveHandler> |
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void async_resolve(implementation_type& impl, const query_type& query, |
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BOOST_ASIO_MOVE_ARG(ResolveHandler) handler) |
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{ |
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service_impl_.async_resolve(impl, query, |
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BOOST_ASIO_MOVE_CAST(ResolveHandler)(handler)); |
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} |
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/// Resolve an endpoint to a list of entries. |
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iterator_type resolve(implementation_type& impl, |
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const endpoint_type& endpoint, boost::system::error_code& ec) |
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{ |
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return service_impl_.resolve(impl, endpoint, ec); |
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} |
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/// Asynchronously resolve an endpoint to a list of entries. |
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template <typename ResolveHandler> |
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void async_resolve(implementation_type& impl, const endpoint_type& endpoint, |
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BOOST_ASIO_MOVE_ARG(ResolveHandler) handler) |
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{ |
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return service_impl_.async_resolve(impl, endpoint, |
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BOOST_ASIO_MOVE_CAST(ResolveHandler)(handler)); |
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} |
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private: |
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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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service_impl_.shutdown_service(); |
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} |
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// Perform any fork-related housekeeping. |
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void fork_service(boost::asio::io_service::fork_event event) |
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{ |
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service_impl_.fork_service(event); |
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} |
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// The platform-specific implementation. |
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service_impl_type service_impl_; |
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}; |
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} // namespace ip |
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} // namespace asio |
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} // namespace boost |
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#include <boost/asio/detail/pop_options.hpp> |
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#endif // BOOST_ASIO_IP_RESOLVER_SERVICE_HPP
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