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e948be4d | 1 | /* pthread_getcpuclockid -- Get POSIX clockid_t for a pthread_t. Linux version |
6d7e8eda | 2 | Copyright (C) 2000-2023 Free Software Foundation, Inc. |
76a50749 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 License as | |
7 | published by the Free Software Foundation; either version 2.1 of the | |
8 | 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 | 16 | License along with the GNU C Library; see the file COPYING.LIB. If |
5a82c748 | 17 | not, see <https://www.gnu.org/licenses/>. */ |
76a50749 UD |
18 | |
19 | #include <errno.h> | |
8c2e9a29 | 20 | #include <pthreadP.h> |
76a50749 UD |
21 | #include <sys/time.h> |
22 | #include <tls.h> | |
e948be4d | 23 | #include <kernel-posix-cpu-timers.h> |
310e59e6 | 24 | #include <shlib-compat.h> |
76a50749 UD |
25 | |
26 | int | |
310e59e6 | 27 | __pthread_getcpuclockid (pthread_t threadid, clockid_t *clockid) |
76a50749 | 28 | { |
8c2e9a29 UD |
29 | struct pthread *pd = (struct pthread *) threadid; |
30 | ||
31 | /* Make sure the descriptor is valid. */ | |
32 | if (INVALID_TD_P (pd)) | |
33 | /* Not a valid thread handle. */ | |
34 | return ESRCH; | |
35 | ||
e948be4d | 36 | /* The clockid_t value is a simple computation from the TID. */ |
4165d44d | 37 | |
9b5e138f | 38 | const clockid_t tidclock = make_thread_cpuclock (pd->tid, CPUCLOCK_SCHED); |
76a50749 | 39 | |
e948be4d | 40 | *clockid = tidclock; |
76a50749 | 41 | return 0; |
76a50749 | 42 | } |
310e59e6 FW |
43 | versioned_symbol (libc, __pthread_getcpuclockid, pthread_getcpuclockid, |
44 | GLIBC_2_34); | |
45 | ||
46 | #if OTHER_SHLIB_COMPAT (libpthread, GLIBC_2_2, GLIBC_2_34) | |
47 | compat_symbol (libpthread, __pthread_getcpuclockid, pthread_getcpuclockid, | |
48 | GLIBC_2_2); | |
49 | #endif |