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33574c17 | 1 | /* Get calling thread's ID. |
6d7e8eda | 2 | Copyright (C) 2000-2023 Free Software Foundation, Inc. |
33574c17 ST |
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 | |
ad2b41bf ST |
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. | |
33574c17 ST |
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 | |
ad2b41bf | 13 | Lesser General Public License for more details. |
33574c17 | 14 | |
ad2b41bf ST |
15 | You should have received a copy of the GNU Lesser General Public |
16 | License along with the GNU C Library; if not, see | |
5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
33574c17 ST |
18 | |
19 | #include <pthread.h> | |
5476f8cd | 20 | #include <shlib-compat.h> |
33574c17 ST |
21 | #include <pt-internal.h> |
22 | ||
23 | /* Return the thread ID of the calling thread. */ | |
24 | pthread_t | |
25 | __pthread_self (void) | |
26 | { | |
70ff58ce ST |
27 | struct __pthread *self; |
28 | ||
29 | if (___pthread_self == NULL) | |
30 | /* We are not initialized yet, we are the first thread. */ | |
31 | return 1; | |
32 | ||
33 | self = _pthread_self (); | |
33574c17 ST |
34 | assert (self != NULL); |
35 | ||
36 | return self->thread; | |
37 | } | |
38 | ||
5476f8cd GFI |
39 | libc_hidden_def (__pthread_self) |
40 | versioned_symbol (libc, __pthread_self, pthread_self, GLIBC_2_21); | |
41 | ||
42 | #if OTHER_SHLIB_COMPAT (libpthread, GLIBC_2_12, GLIBC_2_21) | |
43 | compat_symbol (libc, __pthread_self, pthread_self, GLIBC_2_12); | |
44 | #endif |