Remove shlib-versions entries redundant with DEFAULT entries.
[glibc.git] / nptl / old_pthread_cond_broadcast.c
blobcede6c502c5326f6d059616b28da13a3e496313d
1 /* Copyright (C) 2002-2014 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
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.
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.
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 <http://www.gnu.org/licenses/>. */
19 #include <errno.h>
20 #include <stdlib.h>
21 #include "pthreadP.h"
22 #include <atomic.h>
23 #include <shlib-compat.h>
26 #if SHLIB_COMPAT(libpthread, GLIBC_2_0, GLIBC_2_3_2)
27 int
28 __pthread_cond_broadcast_2_0 (cond)
29 pthread_cond_2_0_t *cond;
31 if (cond->cond == NULL)
33 pthread_cond_t *newcond;
35 #if LLL_LOCK_INITIALIZER == 0
36 newcond = (pthread_cond_t *) calloc (sizeof (pthread_cond_t), 1);
37 if (newcond == NULL)
38 return ENOMEM;
39 #else
40 newcond = (pthread_cond_t *) malloc (sizeof (pthread_cond_t));
41 if (newcond == NULL)
42 return ENOMEM;
44 /* Initialize the condvar. */
45 (void) pthread_cond_init (newcond, NULL);
46 #endif
48 if (atomic_compare_and_exchange_bool_acq (&cond->cond, newcond, NULL))
49 /* Somebody else just initialized the condvar. */
50 free (newcond);
53 return __pthread_cond_broadcast (cond->cond);
55 compat_symbol (libpthread, __pthread_cond_broadcast_2_0,
56 pthread_cond_broadcast, GLIBC_2_0);
57 #endif