| yuezonghe | 824eb0c | 2024-06-27 02:32:26 -0700 | [diff] [blame] | 1 | /* Copyright (C) 2002, 2003, 2004, 2007 Free Software Foundation, Inc. |
| 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 |
| 16 | License along with the GNU C Library; if not, write to the Free |
| 17 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 18 | 02111-1307 USA. */ |
| 19 | |
| 20 | #include <assert.h> |
| 21 | #include <errno.h> |
| 22 | #include <string.h> |
| 23 | #include <unistd.h> |
| 24 | #include "pthreadP.h" |
| 25 | |
| 26 | |
| 27 | struct pthread_attr *__attr_list; |
| 28 | int __attr_list_lock = LLL_LOCK_INITIALIZER; |
| 29 | |
| 30 | |
| 31 | int |
| 32 | attribute_protected |
| 33 | __pthread_attr_init_2_1 ( |
| 34 | pthread_attr_t *attr) |
| 35 | { |
| 36 | struct pthread_attr *iattr; |
| 37 | |
| 38 | /* Many elements are initialized to zero so let us do it all at |
| 39 | once. This also takes care of clearing the bytes which are not |
| 40 | internally used. */ |
| 41 | memset (attr, '\0', __SIZEOF_PTHREAD_ATTR_T); |
| 42 | |
| 43 | assert (sizeof (*attr) >= sizeof (struct pthread_attr)); |
| 44 | iattr = (struct pthread_attr *) attr; |
| 45 | |
| 46 | /* Default guard size specified by the standard. */ |
| 47 | iattr->guardsize = getpagesize (); |
| 48 | |
| 49 | return 0; |
| 50 | } |
| 51 | weak_alias(__pthread_attr_init_2_1, pthread_attr_init) |