ceph/src/boost/libs/date_time/test/posix_time/testfiletime_functions.cpp

   1 /* Copyright (c) 2002,2003, 2004 CrystalClear Software, Inc.
   2  * Use, modification and distribution is subject to the
   3  * Boost Software License, Version 1.0. (See accompanying
   4  * file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
   5  * Author: Jeff Garland, Bart Garst
   6  */
   7
   8 #include "boost/date_time/posix_time/posix_time.hpp"
   9 #include "../testfrmwk.hpp"
  10 #include "boost/date_time/filetime_functions.hpp"
  11 #include <cmath>
  12
  13 #if defined(BOOST_HAS_FTIME)
  14 #include <windows.h>
  15 #endif
  16
  17 int main()
  18 {
  19 #if defined(BOOST_HAS_FTIME) // skip tests if no FILETIME
  20
  21   using namespace boost::posix_time;
  22
  23   // adjustor is used to truncate ptime's fractional seconds for
  24   // comparison with SYSTEMTIME's milliseconds
  25   const time_duration::tick_type adjustor = time_duration::ticks_per_second() / 1000;
  26
  27   for(int i = 0; i < 5; ++i){
  28
  29     FILETIME ft;
  30     SYSTEMTIME st;
  31     GetSystemTime(&st);
  32     SystemTimeToFileTime(&st,&ft);
  33
  34     ptime pt = from_ftime<ptime>(ft);
  35
  36     check_equal("ptime year matches systemtime year",
  37         st.wYear, pt.date().year());
  38     check_equal("ptime month matches systemtime month",
  39         st.wMonth, pt.date().month());
  40     check_equal("ptime day matches systemtime day",
  41         st.wDay, pt.date().day());
  42     check_equal("ptime hour matches systemtime hour",
  43         st.wHour, pt.time_of_day().hours());
  44     check_equal("ptime minute matches systemtime minute",
  45         st.wMinute, pt.time_of_day().minutes());
  46     check_equal("ptime second matches systemtime second",
  47         st.wSecond, pt.time_of_day().seconds());
  48     check_equal("truncated ptime fractional second matches systemtime millisecond",
  49         st.wMilliseconds, (pt.time_of_day().fractional_seconds() / adjustor));
  50
  51     // burn up a little time
  52     for (int j=0; j<100000; j++)
  53     {
  54       SYSTEMTIME tmp;
  55       GetSystemTime(&tmp);
  56     }
  57
  58   } // for loop
  59
  60   // check that time_from_ftime works for pre-1970-Jan-01 dates, too
  61   // zero FILETIME should represent 1601-Jan-01 00:00:00.000
  62   FILETIME big_bang_by_ms;
  63   big_bang_by_ms.dwLowDateTime = big_bang_by_ms.dwHighDateTime = 0;
  64   ptime pt = from_ftime<ptime>(big_bang_by_ms);
  65
  66   check_equal("big bang ptime year matches 1601",
  67       1601, pt.date().year());
  68   check_equal("big bang ptime month matches Jan",
  69       1, pt.date().month());
  70   check_equal("big bang ptime day matches 1",
  71       1, pt.date().day());
  72   check_equal("big bang ptime hour matches 0",
  73       0, pt.time_of_day().hours());
  74   check_equal("big bang ptime minute matches 0",
  75       0, pt.time_of_day().minutes());
  76   check_equal("big bang ptime second matches 0",
  77       0, pt.time_of_day().seconds());
  78   check_equal("big bang truncated ptime fractional second matches 0",
  79       0, (pt.time_of_day().fractional_seconds() / adjustor));
  80
  81
  82 #else // BOOST_HAS_FTIME
  83   // we don't want a forced failure here, not a shortcoming
  84   check("FILETIME not available for this compiler/platform", true);
  85 #endif // BOOST_HAS_FTIME
  86
  87   return printTestStats();
  88
  89 }
  90