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- //
- // detail/std_thread.hpp
- // ~~~~~~~~~~~~~~~~~~~~~
- //
- // Copyright (c) 2003-2021 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 BOOST_ASIO_DETAIL_STD_THREAD_HPP
- #define BOOST_ASIO_DETAIL_STD_THREAD_HPP
- #if defined(_MSC_VER) && (_MSC_VER >= 1200)
- # pragma once
- #endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
- #include <boost/asio/detail/config.hpp>
- #if defined(BOOST_ASIO_HAS_STD_THREAD)
- #include <thread>
- #include <boost/asio/detail/noncopyable.hpp>
- #include <boost/asio/detail/push_options.hpp>
- namespace boost {
- namespace asio {
- namespace detail {
- class std_thread
- : private noncopyable
- {
- public:
- // Constructor.
- template <typename Function>
- std_thread(Function f, unsigned int = 0)
- : thread_(f)
- {
- }
- // Destructor.
- ~std_thread()
- {
- join();
- }
- // Wait for the thread to exit.
- void join()
- {
- if (thread_.joinable())
- thread_.join();
- }
- // Get number of CPUs.
- static std::size_t hardware_concurrency()
- {
- return std::thread::hardware_concurrency();
- }
- private:
- std::thread thread_;
- };
- } // namespace detail
- } // namespace asio
- } // namespace boost
- #include <boost/asio/detail/pop_options.hpp>
- #endif // defined(BOOST_ASIO_HAS_STD_THREAD)
- #endif // BOOST_ASIO_DETAIL_STD_THREAD_HPP
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