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