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//
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// detail/impl/winsock_init.ipp
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// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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//
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// Copyright (c) 2003-2015 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_DETAIL_IMPL_WINSOCK_INIT_IPP
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#define BOOST_ASIO_DETAIL_IMPL_WINSOCK_INIT_IPP
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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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#if defined(BOOST_ASIO_WINDOWS) || defined(__CYGWIN__)
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#include <boost/asio/detail/socket_types.hpp>
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#include <boost/asio/detail/winsock_init.hpp>
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#include <boost/asio/detail/throw_error.hpp>
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#include <boost/asio/error.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 detail {
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void winsock_init_base::startup(data& d,
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    unsigned char major, unsigned char minor)
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{
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  if (::InterlockedIncrement(&d.init_count_) == 1)
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  {
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    WSADATA wsa_data;
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    long result = ::WSAStartup(MAKEWORD(major, minor), &wsa_data);
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    ::InterlockedExchange(&d.result_, result);
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  }
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}
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void winsock_init_base::manual_startup(data& d)
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{
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  if (::InterlockedIncrement(&d.init_count_) == 1)
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  {
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    ::InterlockedExchange(&d.result_, 0);
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  }
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}
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void winsock_init_base::cleanup(data& d)
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{
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  if (::InterlockedDecrement(&d.init_count_) == 0)
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  {
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    ::WSACleanup();
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  }
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}
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void winsock_init_base::manual_cleanup(data& d)
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{
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  ::InterlockedDecrement(&d.init_count_);
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}
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void winsock_init_base::throw_on_error(data& d)
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{
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  long result = ::InterlockedExchangeAdd(&d.result_, 0);
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  if (result != 0)
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  {
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    boost::system::error_code ec(result,
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        boost::asio::error::get_system_category());
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    boost::asio::detail::throw_error(ec, "winsock");
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  }
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}
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} // namespace detail
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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 // defined(BOOST_ASIO_WINDOWS) || defined(__CYGWIN__)
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#endif // BOOST_ASIO_DETAIL_IMPL_WINSOCK_INIT_IPP