2 // detail/win_tss_ptr.hpp
3 // ~~~~~~~~~~~~~~~~~~~~~~
5 // Copyright (c) 2003-2022 Christopher M. Kohlhoff (chris at kohlhoff dot com)
7 // Distributed under the Boost Software License, Version 1.0. (See accompanying
8 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
11 #ifndef BOOST_ASIO_DETAIL_WIN_TSS_PTR_HPP
12 #define BOOST_ASIO_DETAIL_WIN_TSS_PTR_HPP
14 #if defined(_MSC_VER) && (_MSC_VER >= 1200)
16 #endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
18 #include <boost/asio/detail/config.hpp>
20 #if defined(BOOST_ASIO_WINDOWS)
22 #include <boost/asio/detail/noncopyable.hpp>
23 #include <boost/asio/detail/socket_types.hpp>
25 #include <boost/asio/detail/push_options.hpp>
31 // Helper function to create thread-specific storage.
32 BOOST_ASIO_DECL DWORD win_tss_ptr_create();
41 : tss_key_(win_tss_ptr_create())
54 return static_cast<T*>(::TlsGetValue(tss_key_));
58 void operator=(T* value)
60 ::TlsSetValue(tss_key_, value);
64 // Thread-specific storage to allow unlocked access to determine whether a
65 // thread is a member of the pool.
73 #include <boost/asio/detail/pop_options.hpp>
75 #if defined(BOOST_ASIO_HEADER_ONLY)
76 # include <boost/asio/detail/impl/win_tss_ptr.ipp>
77 #endif // defined(BOOST_ASIO_HEADER_ONLY)
79 #endif // defined(BOOST_ASIO_WINDOWS)
81 #endif // BOOST_ASIO_DETAIL_WIN_TSS_PTR_HPP