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//
// detail/std_thread.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_THREAD_HPP
#define ASIO_DETAIL_STD_THREAD_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_THREAD)
#include <thread>
#include "asio/detail/noncopyable.hpp"
#include "asio/detail/push_options.hpp"
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
#include "asio/detail/pop_options.hpp"
#endif // defined(ASIO_HAS_STD_THREAD)
#endif // ASIO_DETAIL_STD_THREAD_HPP
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