detail/impl/win_tss_ptr.ipp

0001 //
0002 // detail/impl/win_tss_ptr.ipp
0003 // ~~~~~~~~~~~~~~~~~~~~~~~~~~~
0004 //
0005 // Copyright (c) 2003-2023 Christopher M. Kohlhoff (chris at kohlhoff dot com)
0006 //
0007 // Distributed under the Boost Software License, Version 1.0. (See accompanying
0008 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
0009 //
0010
0011 #ifndef BOOST_ASIO_DETAIL_IMPL_WIN_TSS_PTR_IPP
0012 #define BOOST_ASIO_DETAIL_IMPL_WIN_TSS_PTR_IPP
0013
0014 #if defined(_MSC_VER) && (_MSC_VER >= 1200)
0015 # pragma once
0016 #endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
0017
0018 #include <boost/asio/detail/config.hpp>
0019
0020 #if defined(BOOST_ASIO_WINDOWS)
0021
0022 #include <boost/asio/detail/throw_error.hpp>
0023 #include <boost/asio/detail/win_tss_ptr.hpp>
0024 #include <boost/asio/error.hpp>
0025
0026 #include <boost/asio/detail/push_options.hpp>
0027
0028 namespace boost {
0029 namespace asio {
0030 namespace detail {
0031
0032 DWORD win_tss_ptr_create()
0033 {
0034 #if defined(UNDER_CE)
0035   const DWORD out_of_indexes = 0xFFFFFFFF;
0036 #else
0037   const DWORD out_of_indexes = TLS_OUT_OF_INDEXES;
0038 #endif
0039
0040   DWORD tss_key = ::TlsAlloc();
0041   if (tss_key == out_of_indexes)
0042   {
0043     DWORD last_error = ::GetLastError();
0044     boost::system::error_code ec(last_error,
0045         boost::asio::error::get_system_category());
0046     boost::asio::detail::throw_error(ec, "tss");
0047   }
0048   return tss_key;
0049 }
0050
0051 } // namespace detail
0052 } // namespace asio
0053 } // namespace boost
0054
0055 #include <boost/asio/detail/pop_options.hpp>
0056
0057 #endif // defined(BOOST_ASIO_WINDOWS)
0058
0059 #endif // BOOST_ASIO_DETAIL_IMPL_WIN_TSS_PTR_IPP