1 /* Copyright (C) 2002-2022 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
24 static int fd[2];
25
26
27 static void *
tf(void * arg)28 tf (void *arg)
29 {
30 /* The buffer size must be larger than the pipe size so that the
31 write blocks. */
32 char buf[100000];
33
34 while (write (fd[1], buf, sizeof (buf)) > 0);
35
36 return (void *) 42l;
37 }
38
39
40 static int
do_test(void)41 do_test (void)
42 {
43 pthread_t th;
44 void *r;
45 struct sigaction sa;
46
47 sa.sa_handler = SIG_IGN;
48 sigemptyset (&sa.sa_mask);
49 sa.sa_flags = 0;
50
51 if (sigaction (SIGPIPE, &sa, NULL) != 0)
52 {
53 puts ("sigaction failed");
54 return 1;
55 }
56
57 if (pipe (fd) != 0)
58 {
59 puts ("pipe failed");
60 return 1;
61 }
62
63 if (pthread_create (&th, NULL, tf, NULL) != 0)
64 {
65 puts ("create failed");
66 return 1;
67 }
68
69 if (pthread_cancel (th) != 0)
70 {
71 puts ("cancel failed");
72 return 1;
73 }
74
75 /* This will cause the write in the child to return. */
76 close (fd[0]);
77
78 if (pthread_join (th, &r) != 0)
79 {
80 puts ("join failed");
81 return 1;
82 }
83
84 if (r != PTHREAD_CANCELED)
85 {
86 printf ("result is wrong: expected %p, got %p\n", PTHREAD_CANCELED, r);
87 return 1;
88 }
89
90 return 0;
91 }
92
93 #define TEST_FUNCTION do_test ()
94 #include "../test-skeleton.c"
95