projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| 2f4f3bd4 | 1 | /* clock_getres -- Get the resolution of a POSIX clockid_t. Linux version. |
| f7a9f785 | 2 | Copyright (C) 2003-2016 Free Software Foundation, Inc. |
| ad0e8eb0 UD |
3 | This file is part of the GNU C Library. |
| 4 | ||
| 5 | The GNU C Library is free software; you can redistribute it and/or | |
| 6 | modify it under the terms of the GNU Lesser General Public | |
| 7 | License as published by the Free Software Foundation; either | |
| 8 | version 2.1 of the License, or (at your option) any later version. | |
| 9 | ||
| 10 | The GNU C 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 GNU | |
| 13 | Lesser General Public License for more details. | |
| 14 | ||
| 15 | You should have received a copy of the GNU Lesser General Public | |
| 59ba27a6 PE |
16 | License along with the GNU C Library; if not, see |
| 17 | <http://www.gnu.org/licenses/>. */ | |
| ad0e8eb0 UD |
18 | |
| 19 | #include <sysdep.h> | |
| 2f4f3bd4 | 20 | #include <errno.h> |
| 6ba85a6d | 21 | #include <time.h> |
| 2f4f3bd4 | 22 | #include "kernel-posix-cpu-timers.h" |
| ad0e8eb0 | 23 | |
| f534255e AZ |
24 | #ifdef HAVE_CLOCK_GETRES_VSYSCALL |
| 25 | # define HAVE_VSYSCALL | |
| 8c2e201b | 26 | #endif |
| f534255e | 27 | #include <sysdep-vdso.h> |
| ad0e8eb0 | 28 | |
| 2f4f3bd4 | 29 | #define SYSCALL_GETRES \ |
| 8c2e201b | 30 | retval = INLINE_VSYSCALL (clock_getres, 2, clock_id, res); \ |
| 2f4f3bd4 RM |
31 | break |
| 32 | ||
| 93a78ac4 JM |
33 | /* The REALTIME and MONOTONIC clock are definitely supported in the |
| 34 | kernel. */ | |
| 35 | #define SYSDEP_GETRES \ | |
| 2f4f3bd4 | 36 | SYSDEP_GETRES_CPUTIME \ |
| ad0e8eb0 UD |
37 | case CLOCK_REALTIME: \ |
| 38 | case CLOCK_MONOTONIC: \ | |
| 89a4419c UD |
39 | case CLOCK_MONOTONIC_RAW: \ |
| 40 | case CLOCK_REALTIME_COARSE: \ | |
| 41 | case CLOCK_MONOTONIC_COARSE: \ | |
| 2f4f3bd4 RM |
42 | SYSCALL_GETRES |
| 43 | ||
| ad0e8eb0 | 44 | /* We handled the REALTIME clock here. */ |
| 26889eac JM |
45 | #define HANDLED_REALTIME 1 |
| 46 | #define HANDLED_CPUTIME 1 | |
| 2f4f3bd4 | 47 | |
| 26889eac JM |
48 | #define SYSDEP_GETRES_CPU SYSCALL_GETRES |
| 49 | #define SYSDEP_GETRES_CPUTIME /* Default catches them too. */ | |
| ad0e8eb0 UD |
50 | |
| 51 | #include <sysdeps/posix/clock_getres.c> |