X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2Fgethrxtime.c;h=f3d41c7b9a24736e1e2ff597bceaa1f99f19d9fe;hb=a6f8cadf086f4abeda879dd491e5da7dddb01d59;hp=6f7bc098c283bf22f4452be3cc801d5712e80d16;hpb=10ce26c08f4e8ffe6ac636b1fec6a33a847b0d3a;p=gnulib.git

diff --git a/lib/gethrxtime.c b/lib/gethrxtime.c
index 6f7bc098c..f3d41c7b9 100644
--- a/lib/gethrxtime.c
+++ b/lib/gethrxtime.c
@@ -1,6 +1,6 @@
 /* gethrxtime -- get high resolution real time
 
-   Copyright (C) 2005 Free Software Foundation, Inc.
+   Copyright (C) 2005, 2006 Free Software Foundation, Inc.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -14,30 +14,20 @@
 
    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.  */
 
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
+#include <config.h>
 
 #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)
@@ -58,23 +48,21 @@ 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
 }