//
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// detail/std_thread.hpp
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// ~~~~~~~~~~~~~~~~~~~~~
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//
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// Copyright (c) 2003-2020 Christopher M. Kohlhoff (chris at kohlhoff dot com)
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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#ifndef BOOST_ASIO_DETAIL_STD_THREAD_HPP
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#define BOOST_ASIO_DETAIL_STD_THREAD_HPP
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#if defined(_MSC_VER) && (_MSC_VER >= 1200)
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# pragma once
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#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
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#include <boost/asio/detail/config.hpp>
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#if defined(BOOST_ASIO_HAS_STD_THREAD)
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#include <thread>
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#include <boost/asio/detail/noncopyable.hpp>
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#include <boost/asio/detail/push_options.hpp>
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namespace boost {
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namespace asio {
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namespace detail {
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class std_thread
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: private noncopyable
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{
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public:
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// Constructor.
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template <typename Function>
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std_thread(Function f, unsigned int = 0)
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: thread_(f)
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{
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}
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// Destructor.
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~std_thread()
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{
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join();
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}
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// Wait for the thread to exit.
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void join()
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{
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if (thread_.joinable())
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thread_.join();
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}
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// Get number of CPUs.
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static std::size_t hardware_concurrency()
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{
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return std::thread::hardware_concurrency();
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}
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private:
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std::thread thread_;
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};
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} // namespace detail
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} // namespace asio
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} // namespace boost
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#include <boost/asio/detail/pop_options.hpp>
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#endif // defined(BOOST_ASIO_HAS_STD_THREAD)
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#endif // BOOST_ASIO_DETAIL_STD_THREAD_HPP
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