projects / deliverable / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| 252b5132 RH |
1 | /* ANSI-compatible clock function. |
| 2 | Copyright (C) 1994, 1995, 1999 Free Software Foundation, Inc. | |
| 3 | ||
| 4 | This file is part of the libiberty library. This library is free | |
| 5 | software; you can redistribute it and/or modify it under the | |
| 6 | terms of the GNU General Public License as published by the | |
| 7 | Free Software Foundation; either version 2, or (at your option) | |
| 8 | any later version. | |
| 9 | ||
| 10 | This library is distributed in the hope that it will be useful, | |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 13 | GNU General Public License for more details. | |
| 14 | ||
| 15 | You should have received a copy of the GNU General Public License | |
| 16 | along with GNU CC; see the file COPYING. If not, write to | |
| 17 | the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
| 18 | ||
| 19 | As a special exception, if you link this library with files | |
| 20 | compiled with a GNU compiler to produce an executable, this does not cause | |
| 21 | the resulting executable to be covered by the GNU General Public License. | |
| 22 | This exception does not however invalidate any other reasons why | |
| 23 | the executable file might be covered by the GNU General Public License. */ | |
| 24 | ||
| 25 | #include "config.h" | |
| 26 | ||
| 27 | #ifdef HAVE_GETRUSAGE | |
| 28 | #include <sys/time.h> | |
| 29 | #include <sys/resource.h> | |
| 30 | #endif | |
| 31 | ||
| 32 | #ifdef HAVE_TIMES | |
| 33 | #ifdef HAVE_SYS_PARAM_H | |
| 34 | #include <sys/param.h> | |
| 35 | #endif | |
| 36 | #include <sys/times.h> | |
| 37 | #endif | |
| 38 | ||
| 39 | #ifdef HAVE_UNISTD_H | |
| 40 | #include <unistd.h> | |
| 41 | #endif | |
| 42 | ||
| 43 | #ifdef _SC_CLK_TCK | |
| 44 | #define GNU_HZ sysconf(_SC_CLK_TCK) | |
| 45 | #else | |
| 46 | #ifdef HZ | |
| 47 | #define GNU_HZ HZ | |
| 48 | #else | |
| 49 | #ifdef CLOCKS_PER_SEC | |
| 50 | #define GNU_HZ CLOCKS_PER_SEC | |
| 51 | #endif | |
| 52 | #endif | |
| 53 | #endif | |
| 54 | ||
| 55 | /* FIXME: should be able to declare as clock_t. */ | |
| 56 | ||
| 57 | long | |
| 58 | clock () | |
| 59 | { | |
| 60 | #ifdef HAVE_GETRUSAGE | |
| 61 | struct rusage rusage; | |
| 62 | ||
| 63 | getrusage (0, &rusage); | |
| 64 | return (rusage.ru_utime.tv_sec * 1000000 + rusage.ru_utime.tv_usec | |
| 65 | + rusage.ru_stime.tv_sec * 1000000 + rusage.ru_stime.tv_usec); | |
| 66 | #else | |
| 67 | #ifdef HAVE_TIMES | |
| 68 | struct tms tms; | |
| 69 | ||
| 70 | times (&tms); | |
| 71 | return (tms.tms_utime + tms.tms_stime) * (1000000 / GNU_HZ); | |
| 72 | #else | |
| 73 | #ifdef VMS | |
| 74 | struct | |
| 75 | { | |
| 76 | int proc_user_time; | |
| 77 | int proc_system_time; | |
| 78 | int child_user_time; | |
| 79 | int child_system_time; | |
| 80 | } vms_times; | |
| 81 | ||
| 82 | times (&vms_times); | |
| 83 | return (vms_times.proc_user_time + vms_times.proc_system_time) * 10000; | |
| 84 | #else | |
| 85 | /* A fallback, if nothing else available. */ | |
| 86 | return 0; | |
| 87 | #endif /* VMS */ | |
| 88 | #endif /* HAVE_TIMES */ | |
| 89 | #endif /* HAVE_GETRUSAGE */ | |
| 90 | } | |
| 91 |