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e5ac7bd6 | 1 | /* Get resolution of a time base. |
dff8da6b | 2 | Copyright (C) 2021-2024 Free Software Foundation, Inc. |
e5ac7bd6 JM |
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 | |
91695ee4 | 8 | version 2.1 of the License, or (at your option) any later version. |
e5ac7bd6 JM |
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 | |
16 | License along with the GNU C Library; if not, see | |
17 | <https://www.gnu.org/licenses/>. */ | |
18 | ||
19 | #include <time.h> | |
20 | ||
21 | /* Set TS to resolution of time base BASE. */ | |
22 | int | |
23 | __timespec_getres64 (struct __timespec64 *ts, int base) | |
24 | { | |
25 | if (base == TIME_UTC) | |
26 | { | |
27 | __clock_getres64 (CLOCK_REALTIME, ts); | |
28 | return base; | |
29 | } | |
30 | return 0; | |
31 | } | |
32 | ||
33 | #if __TIMESIZE != 64 | |
34 | libc_hidden_def (__timespec_getres64) | |
35 | ||
36 | int | |
37 | __timespec_getres (struct timespec *ts, int base) | |
38 | { | |
39 | int ret; | |
40 | struct __timespec64 tp64; | |
41 | ||
42 | ret = __timespec_getres64 (&tp64, base); | |
43 | ||
44 | if (ret == TIME_UTC && ts != NULL) | |
45 | *ts = valid_timespec64_to_timespec (tp64); | |
46 | ||
47 | return ret; | |
48 | } | |
49 | #endif | |
50 | strong_alias (__timespec_getres, timespec_getres); |