projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| f7a9f785 | 1 | /* Copyright (C) 2002-2016 Free Software Foundation, Inc. |
| e51deae7 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/>. */ | |
| e51deae7 UD |
18 | |
| 19 | #include <errno.h> | |
| 20 | #include "pthreadP.h" | |
| 21 | #include <lowlevellock.h> | |
| c59f721c | 22 | #include <futex-internal.h> |
| 7000d82e | 23 | #include <sparc-nptl.h> |
| e51deae7 UD |
24 | |
| 25 | int | |
| f63f2bfd JM |
26 | __pthread_barrier_init (pthread_barrier_t *barrier, |
| 27 | const pthread_barrierattr_t *attr, unsigned int count) | |
| e51deae7 UD |
28 | { |
| 29 | union sparc_pthread_barrier *ibarrier; | |
| 30 | ||
| a1ffb40e | 31 | if (__glibc_unlikely (count == 0)) |
| e51deae7 UD |
32 | return EINVAL; |
| 33 | ||
| 34 | struct pthread_barrierattr *iattr = (struct pthread_barrierattr *) attr; | |
| 35 | if (iattr != NULL) | |
| 36 | { | |
| a2f0363f TR |
37 | int err = futex_supports_pshared (iattr->pshared); |
| 38 | if (err != 0) | |
| 39 | return err; | |
| e51deae7 UD |
40 | } |
| 41 | ||
| 42 | ibarrier = (union sparc_pthread_barrier *) barrier; | |
| 43 | ||
| 44 | /* Initialize the individual fields. */ | |
| 45 | ibarrier->b.lock = LLL_LOCK_INITIALIZER; | |
| 46 | ibarrier->b.left = count; | |
| 47 | ibarrier->b.init_count = count; | |
| 48 | ibarrier->b.curr_event = 0; | |
| 49 | ibarrier->s.left_lock = 0; | |
| 50 | ibarrier->s.pshared = (iattr && iattr->pshared == PTHREAD_PROCESS_SHARED); | |
| 51 | ||
| 52 | return 0; | |
| 53 | } | |
| 90dd5913 | 54 | weak_alias (__pthread_barrier_init, pthread_barrier_init) |