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1/* Copyright (C) 2002-2019 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Roland McGrath <roland@redhat.com>, 2002.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <http://www.gnu.org/licenses/>. */
18
19#include <errno.h>
20#include <pthread.h>
21#include <stdio.h>
22#include <stdlib.h>
23#include <unistd.h>
24#include <sys/wait.h>
25
26
27static pid_t initial_pid;
28
29
30static void *
31tf (void *arg)
32{
33 if (getppid () != initial_pid)
34 {
35 printf ("getppid in thread returned %ld, expected %ld\n",
36 (long int) getppid (), (long int) initial_pid);
37 return (void *) -1;
38 }
39
40 return NULL;
41}
42
43
44int
45main (void)
46{
47 initial_pid = getpid ();
48
49 pid_t child = fork ();
50 if (child == 0)
51 {
52 if (getppid () != initial_pid)
53 {
54 printf ("first getppid returned %ld, expected %ld\n",
55 (long int) getppid (), (long int) initial_pid);
56 exit (1);
57 }
58
59 pthread_t th;
60 if (pthread_create (&th, NULL, tf, NULL) != 0)
61 {
62 puts ("pthread_create failed");
63 exit (1);
64 }
65
66 void *result;
67 if (pthread_join (th, &result) != 0)
68 {
69 puts ("pthread_join failed");
70 exit (1);
71 }
72
73 exit (result == NULL ? 0 : 1);
74 }
75 else if (child == -1)
76 {
77 puts ("initial fork failed");
78 return 1;
79 }
80
81 int status;
82 if (TEMP_FAILURE_RETRY (waitpid (child, &status, 0)) != child)
83 {
84 printf ("waitpid failed: %m\n");
85 return 1;
86 }
87
88 return status;
89}
90

Warning: That file was not part of the compilation database. It may have many parsing errors.