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//
// detail/impl/resolver_service_base.ipp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 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_RESOLVER_SERVICE_BASE_IPP
#define BOOST_ASIO_DETAIL_IMPL_RESOLVER_SERVICE_BASE_IPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#include <boost/asio/detail/resolver_service_base.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
class resolver_service_base::work_io_service_runner
{
public:
work_io_service_runner(boost::asio::io_service& io_service)
: io_service_(io_service) {}
void operator()() { io_service_.run(); }
private:
boost::asio::io_service& io_service_;
};
resolver_service_base::resolver_service_base(
boost::asio::io_service& io_service)
: io_service_impl_(boost::asio::use_service<io_service_impl>(io_service)),
work_io_service_(new boost::asio::io_service),
work_io_service_impl_(boost::asio::use_service<
io_service_impl>(*work_io_service_)),
work_(new boost::asio::io_service::work(*work_io_service_)),
work_thread_(0)
{
}
resolver_service_base::~resolver_service_base()
{
shutdown_service();
}
void resolver_service_base::shutdown_service()
{
work_.reset();
if (work_io_service_)
{
work_io_service_->stop();
if (work_thread_)
{
work_thread_->join();
work_thread_.reset();
}
work_io_service_.reset();
}
}
void resolver_service_base::construct(
resolver_service_base::implementation_type& impl)
{
impl.reset(static_cast<void*>(0), socket_ops::noop_deleter());
}
void resolver_service_base::destroy(
resolver_service_base::implementation_type&)
{
}
void resolver_service_base::cancel(
resolver_service_base::implementation_type& impl)
{
impl.reset(static_cast<void*>(0), socket_ops::noop_deleter());
}
void resolver_service_base::start_resolve_op(operation* op)
{
start_work_thread();
io_service_impl_.work_started();
work_io_service_impl_.post_immediate_completion(op);
}
void resolver_service_base::start_work_thread()
{
boost::asio::detail::mutex::scoped_lock lock(mutex_);
if (!work_thread_)
{
work_thread_.reset(new boost::asio::detail::thread(
work_io_service_runner(*work_io_service_)));
}
}
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // BOOST_ASIO_DETAIL_IMPL_RESOLVER_SERVICE_BASE_IPP
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