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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 | #ifndef BOOST_THREAD_TIME_HPP
#define BOOST_THREAD_TIME_HPP
// (C) Copyright 2007 Anthony Williams
//
// 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)
#include <boost/date_time/time_clock.hpp>
#include <boost/date_time/microsec_time_clock.hpp>
#include <boost/date_time/posix_time/posix_time_types.hpp>
#include <boost/config/abi_prefix.hpp>
namespace boost
{
typedef boost::posix_time::ptime system_time;
inline system_time get_system_time()
{
#if defined(BOOST_DATE_TIME_HAS_HIGH_PRECISION_CLOCK)
return boost::date_time::microsec_clock<system_time>::universal_time();
#else // defined(BOOST_DATE_TIME_HAS_HIGH_PRECISION_CLOCK)
return boost::date_time::second_clock<system_time>::universal_time();
#endif // defined(BOOST_DATE_TIME_HAS_HIGH_PRECISION_CLOCK)
}
namespace detail
{
inline system_time get_system_time_sentinel()
{
return system_time(boost::posix_time::pos_infin);
}
inline unsigned long get_milliseconds_until(system_time const& target_time)
{
if(target_time.is_pos_infinity())
{
return ~(unsigned long)0;
}
system_time const now=get_system_time();
if(target_time<=now)
{
return 0;
}
return static_cast<unsigned long>((target_time-now).total_milliseconds()+1);
}
}
}
#include <boost/config/abi_suffix.hpp>
#endif
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