1/* Copyright (C) 2003-2024 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
8
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <https://www.gnu.org/licenses/>. */
17
18#include <errno.h>
19#include <pthread.h>
20#include <stdio.h>
21#include <stdlib.h>
22
23
24
25int
26do_test (void)
27{
28 int c = pthread_getconcurrency ();
29 if (c != 0)
30 {
31 puts (s: "initial concurrencylevel wrong");
32 exit (1);
33 }
34
35 if (pthread_setconcurrency (level: 1) != 0)
36 {
37 puts (s: "setconcurrency failed");
38 exit (1);
39 }
40
41 c = pthread_getconcurrency ();
42 if (c != 1)
43 {
44 puts (s: "getconcurrency didn't return the value previous set");
45 exit (1);
46 }
47
48 int e = pthread_setconcurrency (level: -1);
49 if (e == 0)
50 {
51 puts (s: "setconcurrency of negative value didn't failed");
52 exit (1);
53 }
54 if (e != EINVAL)
55 {
56 puts (s: "setconcurrency didn't return EINVAL for negative value");
57 exit (1);
58 }
59
60 c = pthread_getconcurrency ();
61 if (c != 1)
62 {
63 puts (s: "invalid getconcurrency changed level");
64 exit (1);
65 }
66
67 return 0;
68}
69
70
71#define TEST_FUNCTION do_test ()
72#include "../test-skeleton.c"
73

source code of glibc/sysdeps/pthread/tst-basic5.c