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1 | /* Measure pthread_create thread creation with different stack |
2 | and guard sizes. | |
3 | ||
d614a753 | 4 | Copyright (C) 2017-2020 Free Software Foundation, Inc. |
0edbf123 AZ |
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 | |
5a82c748 | 19 | <https://www.gnu.org/licenses/>. */ |
0edbf123 AZ |
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); | |
44 | ||
45 | stacksize = stacksize * pgsize; | |
46 | guardsize = guardsize * pgsize; | |
47 | ||
48 | xpthread_attr_setstacksize (&attr, stacksize); | |
49 | xpthread_attr_setguardsize (&attr, guardsize); | |
50 | ||
51 | pthread_t ts[nthreads]; | |
52 | ||
53 | for (int i = 0; i < nthreads; i++) | |
54 | ts[i] = xpthread_create (&attr, thread_dummy, NULL); | |
55 | ||
56 | for (int i = 0; i < nthreads; i++) | |
57 | xpthread_join (ts[i]); | |
58 | } |