| 1 | /* Copyright (C) 1996, 1998, 2001 Free Software Foundation, Inc.
|
|---|
| 2 | This file is part of GNU Fortran libU77 library.
|
|---|
| 3 |
|
|---|
| 4 | This library is free software; you can redistribute it and/or modify it
|
|---|
| 5 | under the terms of the GNU Library General Public License as published
|
|---|
| 6 | by the Free Software Foundation; either version 2 of the License, or
|
|---|
| 7 | (at your option) any later version.
|
|---|
| 8 |
|
|---|
| 9 | GNU Fortran is distributed in the hope that it will be useful,
|
|---|
| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|---|
| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|---|
| 12 | Library General Public License for more details.
|
|---|
| 13 |
|
|---|
| 14 | You should have received a copy of the GNU Library General Public
|
|---|
| 15 | License along with GNU Fortran; see the file COPYING.LIB. If
|
|---|
| 16 | not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|---|
| 17 | Boston, MA 02111-1307, USA. */
|
|---|
| 18 |
|
|---|
| 19 | #ifdef HAVE_CONFIG_H
|
|---|
| 20 | #include "config.h"
|
|---|
| 21 | #endif
|
|---|
| 22 | #include <sys/types.h>
|
|---|
| 23 | #if HAVE_SYS_PARAM_H
|
|---|
| 24 | # include <sys/param.h>
|
|---|
| 25 | #endif
|
|---|
| 26 | #if TIME_WITH_SYS_TIME
|
|---|
| 27 | # include <sys/time.h>
|
|---|
| 28 | # include <time.h>
|
|---|
| 29 | #else
|
|---|
| 30 | # if HAVE_SYS_TIME_H
|
|---|
| 31 | # include <sys/time.h>
|
|---|
| 32 | # else
|
|---|
| 33 | # include <time.h>
|
|---|
| 34 | # endif
|
|---|
| 35 | #endif
|
|---|
| 36 | #if HAVE_SYS_TIMES_H
|
|---|
| 37 | # include <sys/times.h>
|
|---|
| 38 | #endif
|
|---|
| 39 | #include <limits.h>
|
|---|
| 40 | #if HAVE_UNISTD_H
|
|---|
| 41 | # include <unistd.h>
|
|---|
| 42 | #endif
|
|---|
| 43 | #include <errno.h> /* for ENOSYS */
|
|---|
| 44 | #include "f2c.h"
|
|---|
| 45 |
|
|---|
| 46 | int
|
|---|
| 47 | G77_system_clock_0 (integer * count, integer * count_rate,
|
|---|
| 48 | integer * count_max)
|
|---|
| 49 | {
|
|---|
| 50 | #if defined (HAVE_TIMES)
|
|---|
| 51 | struct tms buffer;
|
|---|
| 52 | unsigned long cnt;
|
|---|
| 53 | if (count_rate)
|
|---|
| 54 | {
|
|---|
| 55 | #ifdef _SC_CLK_TCK
|
|---|
| 56 | *count_rate = sysconf (_SC_CLK_TCK);
|
|---|
| 57 | #elif defined CLOCKS_PER_SECOND
|
|---|
| 58 | *count_rate = CLOCKS_PER_SECOND;
|
|---|
| 59 | #elif defined CLK_TCK
|
|---|
| 60 | *count_rate = CLK_TCK;
|
|---|
| 61 | #elif defined HZ
|
|---|
| 62 | *count_rate = HZ;
|
|---|
| 63 | #else
|
|---|
| 64 | #error Dont know clock tick length
|
|---|
| 65 | #endif
|
|---|
| 66 | }
|
|---|
| 67 | if (count_max) /* optional arg present? */
|
|---|
| 68 | *count_max = INT_MAX; /* dubious */
|
|---|
| 69 | cnt = times (&buffer);
|
|---|
| 70 | if (cnt > (unsigned long) (INT_MAX))
|
|---|
| 71 | *count = INT_MAX; /* also dubious */
|
|---|
| 72 | else
|
|---|
| 73 | *count = cnt;
|
|---|
| 74 | return 0;
|
|---|
| 75 | #else /* ! HAVE_TIMES */
|
|---|
| 76 | errno = ENOSYS;
|
|---|
| 77 | return -1;
|
|---|
| 78 | #endif /* ! HAVE_TIMES */
|
|---|
| 79 | }
|
|---|
