Chris@16: //
Chris@16: // system_timer.hpp
Chris@16: // ~~~~~~~~~~~~~~~~
Chris@16: //
Chris@101: // Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
Chris@16: //
Chris@16: // Distributed under the Boost Software License, Version 1.0. (See accompanying
Chris@16: // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
Chris@16: //
Chris@16: 
Chris@16: #ifndef BOOST_ASIO_SYSTEM_TIMER_HPP
Chris@16: #define BOOST_ASIO_SYSTEM_TIMER_HPP
Chris@16: 
Chris@16: #if defined(_MSC_VER) && (_MSC_VER >= 1200)
Chris@16: # pragma once
Chris@16: #endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
Chris@16: 
Chris@16: #include <boost/asio/detail/config.hpp>
Chris@16: 
Chris@16: #if defined(BOOST_ASIO_HAS_STD_CHRONO) \
Chris@16:   || defined(BOOST_ASIO_HAS_BOOST_CHRONO) \
Chris@16:   || defined(GENERATING_DOCUMENTATION)
Chris@16: 
Chris@16: #if defined(BOOST_ASIO_HAS_STD_CHRONO)
Chris@16: # include <chrono>
Chris@16: #elif defined(BOOST_ASIO_HAS_BOOST_CHRONO)
Chris@16: # include <boost/chrono/system_clocks.hpp>
Chris@16: #endif
Chris@16: 
Chris@16: #include <boost/asio/basic_waitable_timer.hpp>
Chris@16: 
Chris@16: namespace boost {
Chris@16: namespace asio {
Chris@16: 
Chris@16: #if defined(GENERATING_DOCUMENTATION)
Chris@16: /// Typedef for a timer based on the system clock.
Chris@16: /**
Chris@16:  * This typedef uses the C++11 @c &lt;chrono&gt; standard library facility, if
Chris@16:  * available. Otherwise, it may use the Boost.Chrono library. To explicitly
Chris@16:  * utilise Boost.Chrono, use the basic_waitable_timer template directly:
Chris@16:  * @code
Chris@16:  * typedef basic_waitable_timer<boost::chrono::system_clock> timer;
Chris@16:  * @endcode
Chris@16:  */
Chris@16: typedef basic_waitable_timer<chrono::system_clock> system_timer;
Chris@16: #elif defined(BOOST_ASIO_HAS_STD_CHRONO)
Chris@16: typedef basic_waitable_timer<std::chrono::system_clock> system_timer;
Chris@16: #elif defined(BOOST_ASIO_HAS_BOOST_CHRONO)
Chris@16: typedef basic_waitable_timer<boost::chrono::system_clock> system_timer;
Chris@16: #endif
Chris@16: 
Chris@16: } // namespace asio
Chris@16: } // namespace boost
Chris@16: 
Chris@16: #endif // defined(BOOST_ASIO_HAS_STD_CHRONO) 
Chris@16:        //   || defined(BOOST_ASIO_HAS_BOOST_CHRONO)
Chris@16:        //   || defined(GENERATING_DOCUMENTATION)
Chris@16: 
Chris@16: #endif // BOOST_ASIO_SYSTEM_TIMER_HPP