Commit 4211ee7d authored by Eli Zaretskii's avatar Eli Zaretskii

(Fget_internal_run_time): New function.

(syms_of_data): Defsubr it.
parent 59dede22
......@@ -39,6 +39,10 @@ Boston, MA 02111-1307, USA. */
#include <stdio.h>
#include <sys/resource.h>
#include <ctype.h>
#include "lisp.h"
......@@ -1375,6 +1379,47 @@ resolution finer than a second. */)
return Flist (3, result);
DEFUN ("get-internal-run-time", Fget_internal_run_time, Sget_internal_run_time,
0, 0, 0,
doc: /* Return the current run time used by Emacs.
The time is returned as a list of three integers. The first has the
most significant 16 bits of the seconds, while the second has the
least significant 16 bits. The third integer gives the microsecond
On systems that can't determine the run time, get-internal-run-time
does the same thing as current-time. The microsecond count is zero on
systems that do not provide resolution finer than a second. */)
struct rusage usage;
Lisp_Object result[3];
int secs, usecs;
if (getrusage (RUSAGE_SELF, &usage) < 0)
/* This shouldn't happen. What action is appropriate? */
Fsignal (Qerror, Qnil);
/* Sum up user time and system time. */
secs = usage.ru_utime.tv_sec + usage.ru_stime.tv_sec;
usecs = usage.ru_utime.tv_usec + usage.ru_stime.tv_usec;
if (usecs >= 1000000)
usecs -= 1000000;
XSETINT (result[0], (secs >> 16) & 0xffff);
XSETINT (result[1], (secs >> 0) & 0xffff);
XSETINT (result[2], usecs);
return Flist (3, result);
return Fcurrent_time ();
......@@ -4315,6 +4360,7 @@ functions if all the text being accessed has this property. */);
defsubr (&Suser_full_name);
defsubr (&Semacs_pid);
defsubr (&Scurrent_time);
defsubr (&Sget_internal_run_time);
defsubr (&Sformat_time_string);
defsubr (&Sfloat_time);
defsubr (&Sdecode_time);
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