Chris@16: #ifndef BOOST_THREAD_TIME_HPP
Chris@16: #define BOOST_THREAD_TIME_HPP
Chris@16: //  (C) Copyright 2007 Anthony Williams 
Chris@16: //
Chris@16: //  Distributed under the Boost Software License, Version 1.0. (See
Chris@16: //  accompanying file LICENSE_1_0.txt or copy at
Chris@16: //  http://www.boost.org/LICENSE_1_0.txt)
Chris@16: 
Chris@16: #include <boost/date_time/time_clock.hpp>
Chris@16: #include <boost/date_time/microsec_time_clock.hpp>
Chris@16: #include <boost/date_time/posix_time/posix_time_types.hpp>
Chris@16: 
Chris@16: #include <boost/config/abi_prefix.hpp>
Chris@16: 
Chris@16: namespace boost
Chris@16: {
Chris@16:     typedef boost::posix_time::ptime system_time;
Chris@16:     
Chris@16:     inline system_time get_system_time()
Chris@16:     {
Chris@16: #if defined(BOOST_DATE_TIME_HAS_HIGH_PRECISION_CLOCK)
Chris@16:         return boost::date_time::microsec_clock<system_time>::universal_time();
Chris@16: #else // defined(BOOST_DATE_TIME_HAS_HIGH_PRECISION_CLOCK)
Chris@16:         return boost::date_time::second_clock<system_time>::universal_time();
Chris@16: #endif // defined(BOOST_DATE_TIME_HAS_HIGH_PRECISION_CLOCK)
Chris@16:     }
Chris@16: 
Chris@16:     namespace detail
Chris@16:     {
Chris@16:         inline system_time get_system_time_sentinel()
Chris@16:         {
Chris@16:             return system_time(boost::posix_time::pos_infin);
Chris@16:         }
Chris@16: 
Chris@16:         inline unsigned long get_milliseconds_until(system_time const& target_time)
Chris@16:         {
Chris@16:             if(target_time.is_pos_infinity())
Chris@16:             {
Chris@16:                 return ~(unsigned long)0;
Chris@16:             }
Chris@16:             system_time const now=get_system_time();
Chris@16:             if(target_time<=now)
Chris@16:             {
Chris@16:                 return 0;
Chris@16:             }
Chris@16:             return static_cast<unsigned long>((target_time-now).total_milliseconds()+1);
Chris@16:         }
Chris@16: 
Chris@16:     }
Chris@16:     
Chris@16: }
Chris@16: 
Chris@16: #include <boost/config/abi_suffix.hpp>
Chris@16: 
Chris@16: #endif