Support higher-resolution time stamps.

Fixes: debbugs:9000

1 files changed, 12 insertions, 20 deletions

diff --git a/lib-src/profile.c b/lib-src/profile.c
index 8ed4f31897..3e642237c6 100644
--- a/lib-src/profile.c
+++ b/lib-src/profile.c
@@ -29,12 +29,17 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
  **  operations: reset_watch, get_time
  */
 #include <config.h>
+
+#include <inttypes.h>
 #include <stdio.h>
+
+#include <intprops.h>
 #include <systime.h>
 
 static EMACS_TIME TV1, TV2;
 static int watch_not_started = 1; /* flag */
-static char time_string[30];
+static char time_string[INT_STRLEN_BOUND (uintmax_t) + sizeof "."
+			+ LOG10_EMACS_TIME_RESOLUTION];
 
 /* Reset the stopwatch to zero.  */
 
@@ -46,36 +51,23 @@ reset_watch (void)
 }
 
 /* This call returns the time since the last reset_watch call.  The time
-   is returned as a string with the format  <seconds>.<micro-seconds>
+   is returned as a string with the format  <seconds>.<nanoseconds>
    If reset_watch was not called yet, exit.  */
 
 static char *
 get_time (void)
 {
+  uintmax_t s;
+  int ns;
   if (watch_not_started)
     exit (EXIT_FAILURE);  /* call reset_watch first ! */
   EMACS_GET_TIME (TV2);
   EMACS_SUB_TIME (TV2, TV2, TV1);
-  sprintf (time_string, "%lu.%06lu", (unsigned long)EMACS_SECS (TV2), (unsigned long)EMACS_USECS (TV2));
+  s = EMACS_SECS (TV2);
+  ns = EMACS_NSECS (TV2);
+  sprintf (time_string, "%"PRIuMAX".%0*d", s, LOG10_EMACS_TIME_RESOLUTION, ns);
   return time_string;
 }
-
-#if ! defined (HAVE_GETTIMEOFDAY) && defined (HAVE_TIMEVAL)
-
-/* ARGSUSED */
-gettimeofday (tp, tzp)
-     struct timeval *tp;
-     struct timezone *tzp;
-{
-  extern long time ();
-
-  tp->tv_sec = time ((long *)0);
-  tp->tv_usec = 0;
-  if (tzp != 0)
-    tzp->tz_minuteswest = -1;
-}
-
-#endif
 
 int
 main (void)