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94 lines
2.4 KiB
C++
94 lines
2.4 KiB
C++
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// Copyright (C) 2001-2003
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// William E. Kempf
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// Copyright (C) 2007-8 Anthony Williams
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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#ifndef BOOST_XTIME_WEK070601_HPP
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#define BOOST_XTIME_WEK070601_HPP
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#include <boost/thread/detail/config.hpp>
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#if defined BOOST_THREAD_USES_DATETIME
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#include <boost/cstdint.hpp>
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#include <boost/thread/thread_time.hpp>
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#include <boost/date_time/posix_time/conversion.hpp>
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#include <boost/config/abi_prefix.hpp>
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namespace boost {
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enum xtime_clock_types
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{
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TIME_UTC_=1
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// TIME_TAI,
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// TIME_MONOTONIC,
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// TIME_PROCESS,
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// TIME_THREAD,
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// TIME_LOCAL,
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// TIME_SYNC,
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// TIME_RESOLUTION
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};
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struct xtime
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{
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#if defined(BOOST_NO_INT64_T)
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typedef int_fast32_t xtime_sec_t; //INT_FAST32_MIN <= sec <= INT_FAST32_MAX
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#else
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typedef int_fast64_t xtime_sec_t; //INT_FAST64_MIN <= sec <= INT_FAST64_MAX
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#endif
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typedef int_fast32_t xtime_nsec_t; //0 <= xtime.nsec < NANOSECONDS_PER_SECOND
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xtime_sec_t sec;
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xtime_nsec_t nsec;
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operator system_time() const
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{
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return boost::posix_time::from_time_t(0)+
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boost::posix_time::seconds(static_cast<long>(sec))+
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#ifdef BOOST_DATE_TIME_HAS_NANOSECONDS
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boost::posix_time::nanoseconds(nsec);
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#else
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boost::posix_time::microseconds((nsec+500)/1000);
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#endif
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}
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};
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inline xtime get_xtime(boost::system_time const& abs_time)
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{
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xtime res;
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boost::posix_time::time_duration const time_since_epoch=abs_time-boost::posix_time::from_time_t(0);
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res.sec=static_cast<xtime::xtime_sec_t>(time_since_epoch.total_seconds());
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res.nsec=static_cast<xtime::xtime_nsec_t>(time_since_epoch.fractional_seconds()*(1000000000/time_since_epoch.ticks_per_second()));
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return res;
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}
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inline int xtime_get(struct xtime* xtp, int clock_type)
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{
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if (clock_type == TIME_UTC_)
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{
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*xtp=get_xtime(get_system_time());
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return clock_type;
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}
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return 0;
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}
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inline int xtime_cmp(const xtime& xt1, const xtime& xt2)
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{
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if (xt1.sec == xt2.sec)
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return (int)(xt1.nsec - xt2.nsec);
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else
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return (xt1.sec > xt2.sec) ? 1 : -1;
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}
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} // namespace boost
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#include <boost/config/abi_suffix.hpp>
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#endif
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#endif //BOOST_XTIME_WEK070601_HPP
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