1 //
2 // detail/tss_ptr.hpp
3 // ~~~~~~~~~~~~~~~~~~
4 //
5 // Copyright (c) 2003-2019 Christopher M. Kohlhoff (chris at kohlhoff dot com)
6 //
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)
9 //
10 
11 #ifndef BOOST_ASIO_DETAIL_TSS_PTR_HPP
12 #define BOOST_ASIO_DETAIL_TSS_PTR_HPP
13 
14 #if defined(_MSC_VER) && (_MSC_VER >= 1200)
15 # pragma once
16 #endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
17 
18 #include <boost/asio/detail/config.hpp>
19 
20 #if !defined(BOOST_ASIO_HAS_THREADS)
21 # include <boost/asio/detail/null_tss_ptr.hpp>
22 #elif defined(BOOST_ASIO_HAS_THREAD_KEYWORD_EXTENSION)
23 # include <boost/asio/detail/keyword_tss_ptr.hpp>
24 #elif defined(BOOST_ASIO_WINDOWS)
25 # include <boost/asio/detail/win_tss_ptr.hpp>
26 #elif defined(BOOST_ASIO_HAS_PTHREADS)
27 # include <boost/asio/detail/posix_tss_ptr.hpp>
28 #else
29 # error Only Windows and POSIX are supported!
30 #endif
31 
32 #include <boost/asio/detail/push_options.hpp>
33 
34 namespace boost {
35 namespace asio {
36 namespace detail {
37 
38 template <typename T>
39 class tss_ptr
40 #if !defined(BOOST_ASIO_HAS_THREADS)
41   : public null_tss_ptr<T>
42 #elif defined(BOOST_ASIO_HAS_THREAD_KEYWORD_EXTENSION)
43   : public keyword_tss_ptr<T>
44 #elif defined(BOOST_ASIO_WINDOWS)
45   : public win_tss_ptr<T>
46 #elif defined(BOOST_ASIO_HAS_PTHREADS)
47   : public posix_tss_ptr<T>
48 #endif
49 {
50 public:
operator =(T * value)51   void operator=(T* value)
52   {
53 #if !defined(BOOST_ASIO_HAS_THREADS)
54     null_tss_ptr<T>::operator=(value);
55 #elif defined(BOOST_ASIO_HAS_THREAD_KEYWORD_EXTENSION)
56     keyword_tss_ptr<T>::operator=(value);
57 #elif defined(BOOST_ASIO_WINDOWS)
58     win_tss_ptr<T>::operator=(value);
59 #elif defined(BOOST_ASIO_HAS_PTHREADS)
60     posix_tss_ptr<T>::operator=(value);
61 #endif
62   }
63 };
64 
65 } // namespace detail
66 } // namespace asio
67 } // namespace boost
68 
69 #include <boost/asio/detail/pop_options.hpp>
70 
71 #endif // BOOST_ASIO_DETAIL_TSS_PTR_HPP
72