// // detail/impl/winsock_init.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_WINSOCK_INIT_IPP #define BOOST_ASIO_DETAIL_IMPL_WINSOCK_INIT_IPP #if defined(_MSC_VER) && (_MSC_VER >= 1200) # pragma once #endif // defined(_MSC_VER) && (_MSC_VER >= 1200) #include <boost/asio/detail/config.hpp> #if defined(BOOST_WINDOWS) || defined(__CYGWIN__) #include <boost/asio/detail/socket_types.hpp> #include <boost/asio/detail/winsock_init.hpp> #include <boost/asio/detail/throw_error.hpp> #include <boost/asio/error.hpp> #include <boost/asio/detail/push_options.hpp> namespace boost { namespace asio { namespace detail { void winsock_init_base::startup(data& d, unsigned char major, unsigned char minor) { if (::InterlockedIncrement(&d.init_count_) == 1) { WSADATA wsa_data; long result = ::WSAStartup(MAKEWORD(major, minor), &wsa_data); ::InterlockedExchange(&d.result_, result); } } void winsock_init_base::cleanup(data& d) { if (::InterlockedDecrement(&d.init_count_) == 0) { ::WSACleanup(); } } void winsock_init_base::throw_on_error(data& d) { long result = ::InterlockedExchangeAdd(&d.result_, 0); if (result != 0) { boost::system::error_code ec(result, boost::asio::error::get_system_category()); boost::asio::detail::throw_error(ec, "winsock"); } } } // namespace detail } // namespace asio } // namespace boost #include <boost/asio/detail/pop_options.hpp> #endif // defined(BOOST_WINDOWS) || defined(__CYGWIN__) #endif // BOOST_ASIO_DETAIL_IMPL_WINSOCK_INIT_IPP