projects / thirdparty / gcc.git / blame
| Commit | Line | Data |
|---|---|---|
| 8d9254fc | 1 | /* Copyright (C) 2005-2020 Free Software Foundation, Inc. |
| 953ff289 DN |
2 | Contributed by Richard Henderson <rth@redhat.com>. |
| 3 | ||
| f1f3453e TS |
4 | This file is part of the GNU Offloading and Multi Processing Library |
| 5 | (libgomp). | |
| 953ff289 DN |
6 | |
| 7 | Libgomp is free software; you can redistribute it and/or modify it | |
| 748086b7 JJ |
8 | under the terms of the GNU General Public License as published by |
| 9 | the Free Software Foundation; either version 3, or (at your option) | |
| 10 | any later version. | |
| 953ff289 DN |
11 | |
| 12 | Libgomp is distributed in the hope that it will be useful, but WITHOUT ANY | |
| 13 | WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS | |
| 748086b7 | 14 | FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| 953ff289 DN |
15 | more details. |
| 16 | ||
| 748086b7 JJ |
17 | Under Section 7 of GPL version 3, you are granted additional |
| 18 | permissions described in the GCC Runtime Library Exception, version | |
| 19 | 3.1, as published by the Free Software Foundation. | |
| 953ff289 | 20 | |
| 748086b7 JJ |
21 | You should have received a copy of the GNU General Public License and |
| 22 | a copy of the GCC Runtime Library Exception along with this program; | |
| 23 | see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
| 24 | <http://www.gnu.org/licenses/>. */ | |
| 953ff289 DN |
25 | |
| 26 | /* This file contains system specific timer routines. It is expected that | |
| 27 | a system may well want to write special versions of each of these. | |
| 28 | ||
| 29 | The following implementation uses the most simple POSIX routines. | |
| 30 | If present, POSIX 4 clocks should be used instead. */ | |
| 31 | ||
| 32 | #include "libgomp.h" | |
| 33 | #include <unistd.h> | |
| 34 | #if TIME_WITH_SYS_TIME | |
| 35 | # include <sys/time.h> | |
| 36 | # include <time.h> | |
| 37 | #else | |
| 38 | # if HAVE_SYS_TIME_H | |
| 39 | # include <sys/time.h> | |
| 40 | # else | |
| 41 | # include <time.h> | |
| 42 | # endif | |
| 43 | #endif | |
| 44 | ||
| 45 | ||
| 46 | double | |
| 47 | omp_get_wtime (void) | |
| 48 | { | |
| 49 | #ifdef HAVE_CLOCK_GETTIME | |
| 50 | struct timespec ts; | |
| 51 | # ifdef CLOCK_MONOTONIC | |
| 52 | if (clock_gettime (CLOCK_MONOTONIC, &ts) < 0) | |
| 53 | # endif | |
| 54 | clock_gettime (CLOCK_REALTIME, &ts); | |
| 55 | return ts.tv_sec + ts.tv_nsec / 1e9; | |
| 56 | #else | |
| 57 | struct timeval tv; | |
| 58 | gettimeofday (&tv, NULL); | |
| 59 | return tv.tv_sec + tv.tv_usec / 1e6; | |
| 60 | #endif | |
| 61 | } | |
| 62 | ||
| 63 | double | |
| 64 | omp_get_wtick (void) | |
| 65 | { | |
| 66 | #ifdef HAVE_CLOCK_GETTIME | |
| 67 | struct timespec ts; | |
| 68 | # ifdef CLOCK_MONOTONIC | |
| 69 | if (clock_getres (CLOCK_MONOTONIC, &ts) < 0) | |
| 70 | # endif | |
| 71 | clock_getres (CLOCK_REALTIME, &ts); | |
| 72 | return ts.tv_sec + ts.tv_nsec / 1e9; | |
| 73 | #else | |
| 74 | return 1.0 / sysconf(_SC_CLK_TCK); | |
| 75 | #endif | |
| 76 | } | |
| 77 | ||
| 78 | ialias (omp_get_wtime) | |
| 79 | ialias (omp_get_wtick) |