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Diffstat (limited to 'lib/asio/detail/std_global.hpp')
-rw-r--r-- | lib/asio/detail/std_global.hpp | 70 |
1 files changed, 0 insertions, 70 deletions
diff --git a/lib/asio/detail/std_global.hpp b/lib/asio/detail/std_global.hpp deleted file mode 100644 index 0c5173e..0000000 --- a/lib/asio/detail/std_global.hpp +++ /dev/null @@ -1,70 +0,0 @@ -// -// detail/std_global.hpp -// ~~~~~~~~~~~~~~~~~~~~~ -// -// Copyright (c) 2003-2018 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_STD_GLOBAL_HPP -#define ASIO_DETAIL_STD_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_STD_CALL_ONCE) - -#include <exception> -#include <mutex> - -#include "asio/detail/push_options.hpp" - -namespace asio { -namespace detail { - -template <typename T> -struct std_global_impl -{ - // Helper function to perform initialisation. - static void do_init() - { - instance_.ptr_ = new T; - } - - // Destructor automatically cleans up the global. - ~std_global_impl() - { - delete ptr_; - } - - static std::once_flag init_once_; - static std_global_impl instance_; - T* ptr_; -}; - -template <typename T> -std::once_flag std_global_impl<T>::init_once_; - -template <typename T> -std_global_impl<T> std_global_impl<T>::instance_; - -template <typename T> -T& std_global() -{ - std::call_once(std_global_impl<T>::init_once_, &std_global_impl<T>::do_init); - return *std_global_impl<T>::instance_.ptr_; -} - -} // namespace detail -} // namespace asio - -#include "asio/detail/pop_options.hpp" - -#endif // defined(ASIO_HAS_STD_CALL_ONCE) - -#endif // ASIO_DETAIL_STD_GLOBAL_HPP |