1// Copyright (C) 2001-2003
2// William E. Kempf
3// Copyright (C) 2007-8 Anthony Williams
4//
5// Distributed under the Boost Software License, Version 1.0. (See accompanying
6// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
7
8#ifndef BOOST_XTIME_WEK070601_HPP
9#define BOOST_XTIME_WEK070601_HPP
10
11#include <boost/thread/detail/config.hpp>
12#if defined BOOST_THREAD_USES_DATETIME
13
14#include <boost/cstdint.hpp>
15#include <boost/thread/thread_time.hpp>
16#include <boost/date_time/posix_time/conversion.hpp>
17
18#include <boost/config/abi_prefix.hpp>
19
20namespace boost {
21
22enum xtime_clock_types
23{
24 TIME_UTC_=1
25// TIME_TAI,
26// TIME_MONOTONIC,
27// TIME_PROCESS,
28// TIME_THREAD,
29// TIME_LOCAL,
30// TIME_SYNC,
31// TIME_RESOLUTION
32};
33
34struct xtime
35{
36#if defined(BOOST_NO_INT64_T)
37 typedef int_fast32_t xtime_sec_t; //INT_FAST32_MIN <= sec <= INT_FAST32_MAX
38#else
39 typedef int_fast64_t xtime_sec_t; //INT_FAST64_MIN <= sec <= INT_FAST64_MAX
40#endif
41
42 typedef int_fast32_t xtime_nsec_t; //0 <= xtime.nsec < NANOSECONDS_PER_SECOND
43
44 xtime_sec_t sec;
45 xtime_nsec_t nsec;
46
47 operator system_time() const
48 {
49 return boost::posix_time::from_time_t(0)+
50 boost::posix_time::seconds(static_cast<long>(sec))+
51#ifdef BOOST_DATE_TIME_HAS_NANOSECONDS
52 boost::posix_time::nanoseconds(nsec);
53#else
54 boost::posix_time::microseconds((nsec+500)/1000);
55#endif
56 }
57
58};
59
60inline xtime get_xtime(boost::system_time const& abs_time)
61{
62 xtime res;
63 boost::posix_time::time_duration const time_since_epoch=abs_time-boost::posix_time::from_time_t(0);
64
65 res.sec=static_cast<xtime::xtime_sec_t>(time_since_epoch.total_seconds());
66 res.nsec=static_cast<xtime::xtime_nsec_t>(time_since_epoch.fractional_seconds()*(1000000000/time_since_epoch.ticks_per_second()));
67 return res;
68}
69
70inline int xtime_get(struct xtime* xtp, int clock_type)
71{
72 if (clock_type == TIME_UTC_)
73 {
74 *xtp=get_xtime(get_system_time());
75 return clock_type;
76 }
77 return 0;
78}
79
80
81inline int xtime_cmp(const xtime& xt1, const xtime& xt2)
82{
83 if (xt1.sec == xt2.sec)
84 return (int)(xt1.nsec - xt2.nsec);
85 else
86 return (xt1.sec > xt2.sec) ? 1 : -1;
87}
88
89} // namespace boost
90
91#include <boost/config/abi_suffix.hpp>
92#endif
93#endif //BOOST_XTIME_WEK070601_HPP
94