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04277e02 | 1 | /* Copyright (C) 2002-2019 Free Software Foundation, Inc. |
05df18c3 UD |
2 | This file is part of the GNU C Library. |
3 | Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. | |
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/>. */ | |
05df18c3 UD |
18 | |
19 | #include <errno.h> | |
20 | #include <stdlib.h> | |
21 | #include "pthreadP.h" | |
733f25e6 | 22 | #include <atomic.h> |
05df18c3 UD |
23 | #include <shlib-compat.h> |
24 | ||
25 | ||
26 | #if SHLIB_COMPAT(libpthread, GLIBC_2_0, GLIBC_2_3_2) | |
27 | int | |
9d46370c | 28 | __pthread_cond_broadcast_2_0 (pthread_cond_2_0_t *cond) |
05df18c3 | 29 | { |
997256dd | 30 | if (cond->cond == NULL) |
05df18c3 | 31 | { |
733f25e6 | 32 | pthread_cond_t *newcond; |
997256dd | 33 | |
29bc410c UD |
34 | newcond = (pthread_cond_t *) calloc (sizeof (pthread_cond_t), 1); |
35 | if (newcond == NULL) | |
36 | return ENOMEM; | |
05df18c3 | 37 | |
5a3ab2fc | 38 | if (atomic_compare_and_exchange_bool_acq (&cond->cond, newcond, NULL)) |
733f25e6 UD |
39 | /* Somebody else just initialized the condvar. */ |
40 | free (newcond); | |
05df18c3 UD |
41 | } |
42 | ||
997256dd | 43 | return __pthread_cond_broadcast (cond->cond); |
05df18c3 | 44 | } |
bf293afe | 45 | compat_symbol (libpthread, __pthread_cond_broadcast_2_0, |
05df18c3 UD |
46 | pthread_cond_broadcast, GLIBC_2_0); |
47 | #endif |