]>
Commit | Line | Data |
---|---|---|
e51deae7 | 1 | /* Copyright (C) 2002, 2007 Free Software Foundation, Inc. |
76a50749 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/>. */ | |
76a50749 UD |
18 | |
19 | #include <errno.h> | |
20 | #include "pthreadP.h" | |
21 | #include <lowlevellock.h> | |
22 | ||
23 | ||
24 | int | |
25 | pthread_barrier_destroy (barrier) | |
26 | pthread_barrier_t *barrier; | |
27 | { | |
28 | struct pthread_barrier *ibarrier; | |
29 | int result = EBUSY; | |
30 | ||
31 | ibarrier = (struct pthread_barrier *) barrier; | |
32 | ||
e51deae7 | 33 | lll_lock (ibarrier->lock, ibarrier->private ^ FUTEX_PRIVATE_FLAG); |
76a50749 UD |
34 | |
35 | if (__builtin_expect (ibarrier->left == ibarrier->init_count, 1)) | |
36 | /* The barrier is not used anymore. */ | |
37 | result = 0; | |
38 | else | |
39 | /* Still used, return with an error. */ | |
e51deae7 | 40 | lll_unlock (ibarrier->lock, ibarrier->private ^ FUTEX_PRIVATE_FLAG); |
76a50749 UD |
41 | |
42 | return result; | |
43 | } |