// Copyright (C) 2001-2003

 // William E. Kempf

 //

 //  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>

 #include <boost/cstdint.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;

 };

 int BOOST_THREAD_DECL xtime_get(struct xtime* xtp, int clock_type);

 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

 #endif //BOOST_XTIME_WEK070601_HPP