58de70e3c1
git-svn-id: http://libopenmetaverse.googlecode.com/svn/trunk@18 52acb1d6-8a22-11de-b505-999d5b087335
140 lines
3.8 KiB
C++
140 lines
3.8 KiB
C++
//
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// host_resolver_service.hpp
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// ~~~~~~~~~~~~~~~~~~~~~~~~~
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//
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// Copyright (c) 2003-2005 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_IPV4_HOST_RESOLVER_SERVICE_HPP
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#define BOOST_ASIO_IPV4_HOST_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/push_options.hpp>
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#include <boost/asio/detail/push_options.hpp>
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#include <cstring>
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#include <memory>
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#include <boost/noncopyable.hpp>
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#include <boost/asio/detail/pop_options.hpp>
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#include <boost/asio/basic_demuxer.hpp>
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#include <boost/asio/demuxer_service.hpp>
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#include <boost/asio/error.hpp>
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#include <boost/asio/ipv4/detail/host_resolver_service.hpp>
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#include <boost/asio/detail/socket_ops.hpp>
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#include <boost/asio/detail/socket_types.hpp>
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#include <boost/asio/ipv4/host.hpp>
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namespace boost {
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namespace asio {
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namespace ipv4 {
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/// Default service implementation for a host resolver.
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template <typename Allocator = std::allocator<void> >
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class host_resolver_service
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: private boost::noncopyable
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{
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public:
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/// The demuxer type for this service.
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typedef basic_demuxer<demuxer_service<Allocator> > demuxer_type;
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private:
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// The type of the platform-specific implementation.
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typedef detail::host_resolver_service<demuxer_type> service_impl_type;
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public:
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/// The type of the host resolver.
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#if defined(GENERATING_DOCUMENTATION)
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typedef implementation_defined impl_type;
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#else
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typedef typename service_impl_type::impl_type impl_type;
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#endif
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/// Constructor.
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host_resolver_service(demuxer_type& demuxer)
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: service_impl_(demuxer.get_service(service_factory<service_impl_type>()))
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{
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}
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/// Get the demuxer associated with the service.
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demuxer_type& demuxer()
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{
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return service_impl_.demuxer();
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}
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/// Return a null host resolver implementation.
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impl_type null() const
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{
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return service_impl_.null();
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}
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/// Open a new host resolver implementation.
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void open(impl_type& impl)
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{
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service_impl_.open(impl);
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}
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/// Close a host resolver implementation.
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void close(impl_type& impl)
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{
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service_impl_.close(impl);
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}
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/// Get host information for the local machine.
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template <typename Error_Handler>
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void get_local_host(impl_type& impl, host& h, Error_Handler error_handler)
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{
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service_impl_.get_local_host(impl, h, error_handler);
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}
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/// Get host information for a specified address.
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template <typename Error_Handler>
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void get_host_by_address(impl_type& impl, host& h, const address& addr,
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Error_Handler error_handler)
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{
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service_impl_.get_host_by_address(impl, h, addr, error_handler);
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}
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// Asynchronously get host information for a specified address.
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template <typename Handler>
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void async_get_host_by_address(impl_type& impl, host& h, const address& addr,
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Handler handler)
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{
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service_impl_.async_get_host_by_address(impl, h, addr, handler);
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}
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/// Get host information for a named host.
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template <typename Error_Handler>
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void get_host_by_name(impl_type& impl, host& h, const std::string& name,
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Error_Handler error_handler)
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{
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service_impl_.get_host_by_name(impl, h, name, error_handler);
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}
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// Asynchronously get host information for a named host.
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template <typename Handler>
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void async_get_host_by_name(impl_type& impl, host& h, const std::string& name,
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Handler handler)
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{
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service_impl_.async_get_host_by_name(impl, h, name, 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 ipv4
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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_IPV4_HOST_RESOLVER_SERVICE_HPP
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