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
20 namespace boost {
21
22 enum 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
34 struct 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
operator system_timeboost::xtime47 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
get_xtime(boost::system_time const & abs_time)60 inline ::boost::xtime get_xtime(boost::system_time const& abs_time)
61 {
62 ::boost::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< ::boost::xtime::xtime_sec_t>(time_since_epoch.total_seconds());
66 res.nsec=static_cast< ::boost::xtime::xtime_nsec_t>(time_since_epoch.fractional_seconds()*(1000000000/time_since_epoch.ticks_per_second()));
67 return res;
68 }
69
xtime_get(struct::boost::xtime * xtp,int clock_type)70 inline int xtime_get(struct ::boost::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
xtime_cmp(const::boost::xtime & xt1,const::boost::xtime & xt2)81 inline int xtime_cmp(const ::boost::xtime& xt1, const ::boost::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