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1/* pthread_barrier_init. Generic version.
2 Copyright (C) 2002-2019 Free Software Foundation, Inc.
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
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
16 License along with the GNU C Library; if not, see
17 <http://www.gnu.org/licenses/>. */
18
19#include <pthread.h>
20#include <string.h>
21#include <assert.h>
22
23#include <pt-internal.h>
24
25int
26pthread_barrier_init (pthread_barrier_t *barrier,
27 const pthread_barrierattr_t *attr, unsigned count)
28{
29 if (count == 0)
30 return EINVAL;
31
32 memset (barrier, 0, sizeof *barrier);
33
34 barrier->__lock = PTHREAD_SPINLOCK_INITIALIZER;
35 barrier->__pending = count;
36 barrier->__count = count;
37
38 if (attr == NULL
39 || memcmp (attr, &__pthread_default_barrierattr, sizeof (*attr)) == 0)
40 /* Use the default attributes. */
41 return 0;
42
43 /* Non-default attributes. */
44
45 barrier->__attr = malloc (sizeof *attr);
46 if (barrier->__attr == NULL)
47 return ENOMEM;
48
49 *barrier->__attr = *attr;
50 return 0;
51}
52

Warning: That file was not part of the compilation database. It may have many parsing errors.