You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
/* Written by Paul Eggert. */
#include "gethrxtime.h"
-#include <sys/types.h>
-#if TIME_WITH_SYS_TIME
-# include <sys/time.h>
-# include <time.h>
-#else
-# if HAVE_SYS_TIME_H
-# include <sys/time.h>
-# else
-# include <time.h>
-# endif
-#endif
+#include "timespec.h"
-/* Get the time of a high-resolution clock, preferably one that is not
- subject to resetting or drifting. */
+/* Get the current time, as a count of the number of nanoseconds since
+ an arbitrary epoch (e.g., the system boot time). Prefer a
+ high-resolution clock that is not subject to resetting or
+ drifting. */
xtime_t
gethrxtime (void)
}
# endif
-#if HAVE_MICROUPTIME
+# if HAVE_MICROUPTIME
{
struct timeval tv;
microuptime (&tv);
return xtime_make (tv.tv_sec, 1000 * tv.tv_usec);
}
+# else
/* No monotonically increasing clocks are available; fall back on a
clock that might jump backwards, since it's the best we can do. */
-# elif HAVE_GETTIMEOFDAY && XTIME_PRECISION != 1
{
- struct timeval tv;
- gettimeofday (&tv, NULL);
- return xtime_make (tv.tv_sec, 1000 * tv.tv_usec);
+ struct timespec ts;
+ gettime (&ts);
+ return xtime_make (ts.tv_sec, ts.tv_nsec);
}
-# else
- return xtime_make (time (NULL), 0);
# endif
#endif
}