| 1 | /* times.c - times(3) library function */
|
|---|
| 2 |
|
|---|
| 3 | /* Copyright (C) 1999 Free Software Foundation, Inc.
|
|---|
| 4 |
|
|---|
| 5 | This file is part of GNU Bash, the Bourne Again SHell.
|
|---|
| 6 |
|
|---|
| 7 | Bash is free software; you can redistribute it and/or modify it under
|
|---|
| 8 | the terms of the GNU General Public License as published by the Free
|
|---|
| 9 | Software Foundation; either version 2, or (at your option) any later
|
|---|
| 10 | version.
|
|---|
| 11 |
|
|---|
| 12 | Bash is distributed in the hope that it will be useful, but WITHOUT ANY
|
|---|
| 13 | WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|---|
| 14 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|---|
| 15 | for more details.
|
|---|
| 16 |
|
|---|
| 17 | You should have received a copy of the GNU General Public License along
|
|---|
| 18 | with Bash; see the file COPYING. If not, write to the Free Software
|
|---|
| 19 | Foundation, 59 Temple Place, Suite 330, Boston, MA 02111 USA. */
|
|---|
| 20 |
|
|---|
| 21 | #include <config.h>
|
|---|
| 22 |
|
|---|
| 23 | #if !defined (HAVE_TIMES)
|
|---|
| 24 |
|
|---|
| 25 | #include <sys/types.h>
|
|---|
| 26 | #include <posixtime.h>
|
|---|
| 27 | #include <systimes.h>
|
|---|
| 28 |
|
|---|
| 29 | #if defined (HAVE_SYS_RESOURCE_H) && defined (HAVE_GETRUSAGE)
|
|---|
| 30 | # include <sys/resource.h>
|
|---|
| 31 | #endif /* HAVE_SYS_RESOURCE_H && HAVE_GETRUSAGE */
|
|---|
| 32 |
|
|---|
| 33 | extern long get_clk_tck __P((void));
|
|---|
| 34 |
|
|---|
| 35 | #define CONVTCK(r) (r.tv_sec * clk_tck + r.tv_usec / (1000000 / clk_tck))
|
|---|
| 36 |
|
|---|
| 37 | clock_t
|
|---|
| 38 | times(tms)
|
|---|
| 39 | struct tms *tms;
|
|---|
| 40 | {
|
|---|
| 41 | clock_t rv;
|
|---|
| 42 | static long clk_tck = -1;
|
|---|
| 43 |
|
|---|
| 44 | #if defined (HAVE_GETRUSAGE)
|
|---|
| 45 | struct timeval tv;
|
|---|
| 46 | struct rusage ru;
|
|---|
| 47 |
|
|---|
| 48 | if (clk_tck == -1)
|
|---|
| 49 | clk_tck = get_clk_tck();
|
|---|
| 50 |
|
|---|
| 51 | if (getrusage(RUSAGE_SELF, &ru) < 0)
|
|---|
| 52 | return ((clock_t)-1);
|
|---|
| 53 | tms->tms_utime = CONVTCK(ru.ru_utime);
|
|---|
| 54 | tms->tms_stime = CONVTCK(ru.ru_stime);
|
|---|
| 55 |
|
|---|
| 56 | if (getrusage(RUSAGE_CHILDREN, &ru) < 0)
|
|---|
| 57 | return ((clock_t)-1);
|
|---|
| 58 | tms->tms_cutime = CONVTCK(ru.ru_utime);
|
|---|
| 59 | tms->tms_cstime = CONVTCK(ru.ru_stime);
|
|---|
| 60 |
|
|---|
| 61 | if (gettimeofday(&tv, (struct timezone *) 0) < 0)
|
|---|
| 62 | return ((clock_t)-1);
|
|---|
| 63 | rv = (clock_t)(CONVTCK(tv));
|
|---|
| 64 | #else /* !HAVE_GETRUSAGE */
|
|---|
| 65 | if (clk_tck == -1)
|
|---|
| 66 | clk_tck = get_clk_tck();
|
|---|
| 67 |
|
|---|
| 68 | /* We can't do anything. */
|
|---|
| 69 | tms->tms_utime = tms->tms_stime = (clock_t)0;
|
|---|
| 70 | tms->tms_cutime = tms->tms_cstime = (clock_t)0;
|
|---|
| 71 |
|
|---|
| 72 | rv = (clock_t)time((time_t *)0) * clk_tck;
|
|---|
| 73 | # endif /* HAVE_GETRUSAGE */
|
|---|
| 74 |
|
|---|
| 75 | return rv;
|
|---|
| 76 | }
|
|---|
| 77 | #endif /* !HAVE_TIMES */
|
|---|
