projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| 33574c17 | 1 | /* Thread attributes retrieval. |
| dff8da6b | 2 | Copyright (C) 2008-2024 Free Software Foundation, Inc. |
| 33574c17 ST |
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 | |
| ad2b41bf ST |
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. | |
| 33574c17 ST |
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 | |
| ad2b41bf | 13 | Lesser General Public License for more details. |
| 33574c17 | 14 | |
| ad2b41bf ST |
15 | You should have received a copy of the GNU Lesser General Public |
| 16 | License along with the GNU C Library; if not, see | |
| 5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
| 33574c17 ST |
18 | |
| 19 | #include <assert.h> | |
| 20 | #include <errno.h> | |
| 21 | #include <pthread.h> | |
| 22 | ||
| 23 | #include <pt-internal.h> | |
| 24 | ||
| 25 | /* Initialize thread attribute *ATTR with attributes corresponding to the | |
| 26 | already running thread THREAD. It shall be called on an uninitialized ATTR | |
| 27 | and destroyed with pthread_attr_destroy when no longer needed. */ | |
| 28 | int | |
| 29 | __pthread_getattr_np (pthread_t thread, pthread_attr_t *attr) | |
| 30 | { | |
| 31 | struct __pthread *pthread; | |
| 32 | ||
| 33 | pthread = __pthread_getid (thread); | |
| 34 | if (pthread == NULL) | |
| 35 | return ESRCH; | |
| 36 | ||
| 37 | /* Some attributes (schedparam, inheritsched, contentionscope and schedpolicy) | |
| 38 | are not supported yet, so fill them with our default values. */ | |
| 39 | *attr = __pthread_default_attr; | |
| 40 | ||
| a04549c1 JM |
41 | attr->__stackaddr = (pthread->stackaddr |
| 42 | + ((pthread->guardsize + __vm_page_size - 1) | |
| 43 | / __vm_page_size * __vm_page_size)); | |
| 33574c17 ST |
44 | attr->__stacksize = pthread->stacksize; |
| 45 | attr->__guardsize = pthread->guardsize; | |
| 46 | attr->__detachstate = (pthread->state == PTHREAD_DETACHED | |
| 47 | ? PTHREAD_CREATE_DETACHED : PTHREAD_CREATE_JOINABLE); | |
| 48 | ||
| 49 | return 0; | |
| 50 | } | |
| 51 | weak_alias (__pthread_getattr_np, pthread_getattr_np) |