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