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- //
- // detail/impl/winsock_init.ipp
- // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- //
- // Copyright (c) 2003-2019 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 ASIO_DETAIL_IMPL_WINSOCK_INIT_IPP
- #define ASIO_DETAIL_IMPL_WINSOCK_INIT_IPP
-
- #if defined(_MSC_VER) && (_MSC_VER >= 1200)
- # pragma once
- #endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
- #include "asio/detail/config.hpp"
-
- #if defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-
- #include "asio/detail/socket_types.hpp"
- #include "asio/detail/winsock_init.hpp"
- #include "asio/detail/throw_error.hpp"
- #include "asio/error.hpp"
-
- #include "asio/detail/push_options.hpp"
-
- 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::manual_startup(data& d)
- {
- if (::InterlockedIncrement(&d.init_count_) == 1)
- {
- ::InterlockedExchange(&d.result_, 0);
- }
- }
-
- void winsock_init_base::cleanup(data& d)
- {
- if (::InterlockedDecrement(&d.init_count_) == 0)
- {
- ::WSACleanup();
- }
- }
-
- void winsock_init_base::manual_cleanup(data& d)
- {
- ::InterlockedDecrement(&d.init_count_);
- }
-
- void winsock_init_base::throw_on_error(data& d)
- {
- long result = ::InterlockedExchangeAdd(&d.result_, 0);
- if (result != 0)
- {
- asio::error_code ec(result,
- asio::error::get_system_category());
- asio::detail::throw_error(ec, "winsock");
- }
- }
-
- } // namespace detail
- } // namespace asio
-
- #include "asio/detail/pop_options.hpp"
-
- #endif // defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-
- #endif // ASIO_DETAIL_IMPL_WINSOCK_INIT_IPP
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