56 lines
1.6 KiB
C++
56 lines
1.6 KiB
C++
#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
|