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2b778ceb | 1 | /* Copyright (C) 2002-2021 Free Software Foundation, Inc. |
05df18c3 | 2 | This file is part of the GNU C Library. |
05df18c3 UD |
3 | |
4 | The GNU C Library is free software; you can redistribute it and/or | |
5 | modify it under the terms of the GNU Lesser General Public | |
6 | License as published by the Free Software Foundation; either | |
7 | version 2.1 of the License, or (at your option) any later version. | |
8 | ||
9 | The GNU C Library is distributed in the hope that it will be useful, | |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
12 | Lesser General Public License for more details. | |
13 | ||
14 | You should have received a copy of the GNU Lesser General Public | |
59ba27a6 | 15 | License along with the GNU C Library; if not, see |
5a82c748 | 16 | <https://www.gnu.org/licenses/>. */ |
05df18c3 UD |
17 | |
18 | #include <errno.h> | |
19 | #include <stdlib.h> | |
20 | #include "pthreadP.h" | |
733f25e6 | 21 | #include <atomic.h> |
05df18c3 UD |
22 | #include <shlib-compat.h> |
23 | ||
24 | ||
08129b15 | 25 | #if OTHER_SHLIB_COMPAT (libpthread, GLIBC_2_0, GLIBC_2_3_2) |
05df18c3 | 26 | int |
9d46370c | 27 | __pthread_cond_broadcast_2_0 (pthread_cond_2_0_t *cond) |
05df18c3 | 28 | { |
997256dd | 29 | if (cond->cond == NULL) |
05df18c3 | 30 | { |
733f25e6 | 31 | pthread_cond_t *newcond; |
997256dd | 32 | |
29bc410c UD |
33 | newcond = (pthread_cond_t *) calloc (sizeof (pthread_cond_t), 1); |
34 | if (newcond == NULL) | |
35 | return ENOMEM; | |
05df18c3 | 36 | |
5a3ab2fc | 37 | if (atomic_compare_and_exchange_bool_acq (&cond->cond, newcond, NULL)) |
733f25e6 UD |
38 | /* Somebody else just initialized the condvar. */ |
39 | free (newcond); | |
05df18c3 UD |
40 | } |
41 | ||
997256dd | 42 | return __pthread_cond_broadcast (cond->cond); |
05df18c3 | 43 | } |
bf293afe | 44 | compat_symbol (libpthread, __pthread_cond_broadcast_2_0, |
05df18c3 UD |
45 | pthread_cond_broadcast, GLIBC_2_0); |
46 | #endif |