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 | |
25 | static int nrunning = 1; |
26 | |
27 | |
28 | static void |
29 | final_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 | |
38 | static void * |
39 | tf (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 | |
53 | int |
54 | do_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 | |