64 lines
2.1 KiB
C++
64 lines
2.1 KiB
C++
//
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// steady_timer.hpp
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// ~~~~~~~~~~~~~~~~
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//
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// Copyright (c) 2003-2016 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_STEADY_TIMER_HPP
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#define BOOST_ASIO_STEADY_TIMER_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_CHRONO) \
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|| defined(BOOST_ASIO_HAS_BOOST_CHRONO) \
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|| defined(GENERATING_DOCUMENTATION)
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#if defined(BOOST_ASIO_HAS_STD_CHRONO)
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# include <chrono>
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#elif defined(BOOST_ASIO_HAS_BOOST_CHRONO)
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# include <boost/chrono/system_clocks.hpp>
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#endif
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#include <boost/asio/basic_waitable_timer.hpp>
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namespace boost {
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namespace asio {
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#if defined(GENERATING_DOCUMENTATION)
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/// Typedef for a timer based on the steady clock.
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/**
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* This typedef uses the C++11 @c <chrono> standard library facility, if
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* available. Otherwise, it may use the Boost.Chrono library. To explicitly
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* utilise Boost.Chrono, use the basic_waitable_timer template directly:
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* @code
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* typedef basic_waitable_timer<boost::chrono::steady_clock> timer;
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* @endcode
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*/
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typedef basic_waitable_timer<chrono::steady_clock> steady_timer;
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#elif defined(BOOST_ASIO_HAS_STD_CHRONO)
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# if defined(BOOST_ASIO_HAS_STD_CHRONO_MONOTONIC_CLOCK)
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typedef basic_waitable_timer<std::chrono::monotonic_clock> steady_timer;
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# else // defined(BOOST_ASIO_HAS_STD_CHRONO_MONOTONIC_CLOCK)
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typedef basic_waitable_timer<std::chrono::steady_clock> steady_timer;
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# endif // defined(BOOST_ASIO_HAS_STD_CHRONO_MONOTONIC_CLOCK)
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#elif defined(BOOST_ASIO_HAS_BOOST_CHRONO)
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typedef basic_waitable_timer<boost::chrono::steady_clock> steady_timer;
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#endif
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} // namespace asio
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} // namespace boost
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#endif // defined(BOOST_ASIO_HAS_STD_CHRONO)
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// || defined(BOOST_ASIO_HAS_BOOST_CHRONO)
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// || defined(GENERATING_DOCUMENTATION)
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#endif // BOOST_ASIO_STEADY_TIMER_HPP
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