| 1 | /* Measure pthread_create thread creation with different stack |
|---|---|
| 2 | and guard sizes. |
| 3 | |
| 4 | Copyright (C) 2017-2024 Free Software Foundation, Inc. |
| 5 | This file is part of the GNU C Library. |
| 6 | |
| 7 | The GNU C Library is free software; you can redistribute it and/or |
| 8 | modify it under the terms of the GNU Lesser General Public |
| 9 | License as published by the Free Software Foundation; either |
| 10 | version 2.1 of the License, or (at your option) any later version. |
| 11 | |
| 12 | The GNU C Library is distributed in the hope that it will be useful, |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 15 | Lesser General Public License for more details. |
| 16 | |
| 17 | You should have received a copy of the GNU Lesser General Public |
| 18 | License along with the GNU C Library; if not, see |
| 19 | <https://www.gnu.org/licenses/>. */ |
| 20 | |
| 21 | #include <stdio.h> |
| 22 | #include <unistd.h> |
| 23 | #include <support/xthread.h> |
| 24 | |
| 25 | static size_t pgsize; |
| 26 | |
| 27 | static void |
| 28 | thread_create_init (void) |
| 29 | { |
| 30 | pgsize = sysconf (_SC_PAGESIZE); |
| 31 | } |
| 32 | |
| 33 | static void * |
| 34 | thread_dummy (void *arg) |
| 35 | { |
| 36 | return NULL; |
| 37 | } |
| 38 | |
| 39 | static void |
| 40 | thread_create (int nthreads, size_t stacksize, size_t guardsize) |
| 41 | { |
| 42 | pthread_attr_t attr; |
| 43 | xpthread_attr_init (attr: &attr); |
| 44 | |
| 45 | stacksize = stacksize * pgsize; |
| 46 | guardsize = guardsize * pgsize; |
| 47 | |
| 48 | xpthread_attr_setstacksize (attr: &attr, stacksize); |
| 49 | xpthread_attr_setguardsize (attr: &attr, guardsize); |
| 50 | |
| 51 | pthread_t ts[nthreads]; |
| 52 | |
| 53 | for (int i = 0; i < nthreads; i++) |
| 54 | ts[i] = xpthread_create (attr: &attr, thread_func: thread_dummy, NULL); |
| 55 | |
| 56 | for (int i = 0; i < nthreads; i++) |
| 57 | xpthread_join (thr: ts[i]); |
| 58 | } |
| 59 |