1/* Copyright (C) 2002-2024 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 <unistd.h>
22
23
24static int fd[2];
25
26
27static void *
28tf (void *arg)
29{
30 char buf[100];
31
32 if (read (fd[0], buf, sizeof (buf)) == sizeof (buf))
33 {
34 puts (s: "read succeeded");
35 return (void *) 1l;
36 }
37
38 return NULL;
39}
40
41
42static int
43do_test (void)
44{
45 pthread_t th;
46 void *r;
47 struct sigaction sa;
48
49 sa.sa_handler = SIG_IGN;
50 sigemptyset (&sa.sa_mask);
51 sa.sa_flags = 0;
52
53 if (sigaction (SIGPIPE, act: &sa, NULL) != 0)
54 {
55 puts (s: "sigaction failed");
56 return 1;
57 }
58
59 if (pipe (pipedes: fd) != 0)
60 {
61 puts (s: "pipe failed");
62 return 1;
63 }
64
65 if (pthread_create (newthread: &th, NULL, start_routine: tf, NULL) != 0)
66 {
67 puts (s: "create failed");
68 return 1;
69 }
70
71 if (pthread_cancel (th: th) != 0)
72 {
73 puts (s: "cancel failed");
74 return 1;
75 }
76
77 /* This will cause the read in the child to return. */
78 close (fd: fd[0]);
79
80 if (pthread_join (th: th, thread_return: &r) != 0)
81 {
82 puts (s: "join failed");
83 return 1;
84 }
85
86 if (r != PTHREAD_CANCELED)
87 {
88 puts (s: "result is wrong");
89 return 1;
90 }
91
92 return 0;
93}
94
95#define TEST_FUNCTION do_test ()
96#include "../test-skeleton.c"
97

source code of glibc/sysdeps/pthread/tst-cancel3.c