| // |
| // detail/global.hpp |
| // ~~~~~~~~~~~~~~~~~ |
| // |
| // Copyright (c) 2003-2015 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_GLOBAL_HPP |
| #define ASIO_DETAIL_GLOBAL_HPP |
| |
| #if defined(_MSC_VER) && (_MSC_VER >= 1200) |
| # pragma once |
| #endif // defined(_MSC_VER) && (_MSC_VER >= 1200) |
| |
| #include "asio/detail/config.hpp" |
| |
| #if !defined(ASIO_HAS_THREADS) |
| # include "asio/detail/null_global.hpp" |
| #elif defined(ASIO_WINDOWS) |
| # include "asio/detail/win_global.hpp" |
| #elif defined(ASIO_HAS_PTHREADS) |
| # include "asio/detail/posix_global.hpp" |
| #elif defined(ASIO_HAS_STD_CALL_ONCE) |
| # include "asio/detail/std_global.hpp" |
| #else |
| # error Only Windows, POSIX and std::call_once are supported! |
| #endif |
| |
| namespace asio { |
| namespace detail { |
| |
| template <typename T> |
| inline T& global() |
| { |
| #if !defined(ASIO_HAS_THREADS) |
| return null_global<T>(); |
| #elif defined(ASIO_WINDOWS) |
| return win_global<T>(); |
| #elif defined(ASIO_HAS_PTHREADS) |
| return posix_global<T>(); |
| #elif defined(ASIO_HAS_STD_CALL_ONCE) |
| return std_global<T>(); |
| #endif |
| } |
| |
| } // namespace detail |
| } // namespace asio |
| |
| #endif // ASIO_DETAIL_GLOBAL_HPP |