npth-0.90 build report

[Werner Koch]

On Fri, 11 May 2012 21:38, lists at openorbit.org said:
> I decided to publish some code I wrote earlier at github. It
> implements clock_gettime for OS X / darwin. I kindly offer it using a
> dual GPL v2 or LGPL v3 or later license. This may be interesting for

Thanks for that offer.  However, I already implemented it using
gettimeofday:

  int
  npth_clock_gettime (struct timespec *ts)
  {
  #if defined(CLOCK_REALTIME) && HAVE_CLOCK_GETTIME
    return clock_gettime (CLOCK_REALTIME, ts);
  #elif HAVE_GETTIMEOFDAY
    {
      struct timeval tv;
  
      if (gettimeofday (&tv, NULL))
        return -1;
      ts->tv_sec = tv.tv_sec;
      ts->tv_nsec = tv.tv_usec * 1000;
      return 0;
    }
  #else
    /* FIXME: fall back on time() with seconds resolution.  */
  # error clock_gettime not available - please provide a fallback.
  #endif
  }

The gotcha was that HAVE_CLOCK_GETTIME alone was not sufficient, a test
for the CLOCK_REALTIME macro was also required.  It would be better to
do the test for CLOCK_REALTIME while testing for clock_gettime, but
well, this was easier.


Salam-Shalom,

   Werner

-- 
Die Gedanken sind frei.  Ausnahmen regelt ein Bundesgesetz.