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 <pthread.h>
19#include <signal.h>
20#include <stdio.h>
21#include <stdlib.h>
22#include <unistd.h>
23
24
25static int nrunning = 1;
26
27
28static void
29final_test (void)
30{
31 puts (s: "final_test has been called");
32
33#define THE_SIGNAL SIGUSR1
34 kill (pid: getpid (), SIGUSR1);
35}
36
37
38static void *
39tf (void *a)
40{
41 if (pthread_join (th: (pthread_t) a, NULL) != 0)
42 {
43 printf (format: "join failed while %d are running\n", nrunning);
44 _exit (1);
45 }
46
47 printf (format: "%2d left\n", --nrunning);
48
49 return NULL;
50}
51
52
53int
54do_test (void)
55{
56#define N 20
57 pthread_t t[N];
58 pthread_t last = pthread_self ();
59 int i;
60
61 atexit (func: final_test);
62
63 printf (format: "starting %d + 1 threads\n", N);
64 for (i = 0; i < N; ++i)
65 {
66 if (pthread_create (newthread: &t[i], NULL, start_routine: tf, arg: (void *) last) != 0)
67 {
68 puts (s: "create failed");
69 _exit (1);
70 }
71
72 ++nrunning;
73
74 last = t[i];
75 }
76
77 printf (format: "%2d left\n", --nrunning);
78
79 pthread_exit (NULL);
80}
81
82
83#define EXPECTED_SIGNAL THE_SIGNAL
84#define TEST_FUNCTION do_test ()
85#include "../test-skeleton.c"
86

source code of glibc/sysdeps/pthread/tst-basic3.c