New upstream version 8.1.0

thirdparty/source/boost_1_61_0/boost/thread/xtime.hpp

@@ -0,0 +1,93 @@
+// Copyright (C) 2001-2003
+// William E. Kempf
+// Copyright (C) 2007-8 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)
+
+#ifndef BOOST_XTIME_WEK070601_HPP
+#define BOOST_XTIME_WEK070601_HPP
+
+#include <boost/thread/detail/config.hpp>
+#if defined BOOST_THREAD_USES_DATETIME
+
+#include <boost/cstdint.hpp>
+#include <boost/thread/thread_time.hpp>
+#include <boost/date_time/posix_time/conversion.hpp>
+
+#include <boost/config/abi_prefix.hpp>
+
+namespace boost {
+
+enum xtime_clock_types
+{
+    TIME_UTC_=1
+//    TIME_TAI,
+//    TIME_MONOTONIC,
+//    TIME_PROCESS,
+//    TIME_THREAD,
+//    TIME_LOCAL,
+//    TIME_SYNC,
+//    TIME_RESOLUTION
+};
+
+struct xtime
+{
+#if defined(BOOST_NO_INT64_T)
+    typedef int_fast32_t xtime_sec_t; //INT_FAST32_MIN <= sec <= INT_FAST32_MAX
+#else
+    typedef int_fast64_t xtime_sec_t; //INT_FAST64_MIN <= sec <= INT_FAST64_MAX
+#endif
+
+    typedef int_fast32_t xtime_nsec_t; //0 <= xtime.nsec < NANOSECONDS_PER_SECOND
+
+    xtime_sec_t sec;
+    xtime_nsec_t nsec;
+
+    operator system_time() const
+    {
+        return boost::posix_time::from_time_t(0)+
+            boost::posix_time::seconds(static_cast<long>(sec))+
+#ifdef BOOST_DATE_TIME_HAS_NANOSECONDS
+            boost::posix_time::nanoseconds(nsec);
+#else
+        boost::posix_time::microseconds((nsec+500)/1000);
+#endif
+    }
+
+};
+
+inline xtime get_xtime(boost::system_time const& abs_time)
+{
+    xtime res;
+    boost::posix_time::time_duration const time_since_epoch=abs_time-boost::posix_time::from_time_t(0);
+
+    res.sec=static_cast<xtime::xtime_sec_t>(time_since_epoch.total_seconds());
+    res.nsec=static_cast<xtime::xtime_nsec_t>(time_since_epoch.fractional_seconds()*(1000000000/time_since_epoch.ticks_per_second()));
+    return res;
+}
+
+inline int xtime_get(struct xtime* xtp, int clock_type)
+{
+    if (clock_type == TIME_UTC_)
+    {
+        *xtp=get_xtime(get_system_time());
+        return clock_type;
+    }
+    return 0;
+}
+
+
+inline int xtime_cmp(const xtime& xt1, const xtime& xt2)
+{
+    if (xt1.sec == xt2.sec)
+        return (int)(xt1.nsec - xt2.nsec);
+    else
+        return (xt1.sec > xt2.sec) ? 1 : -1;
+}
+
+} // namespace boost
+
+#include <boost/config/abi_suffix.hpp>
+#endif
+#endif //BOOST_XTIME_WEK070601_HPP