]>
Commit | Line | Data |
---|---|---|
568035b7 | 1 | /* Copyright (C) 2002-2013 Free Software Foundation, Inc. |
01b54066 UD |
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 | |
59ba27a6 PE |
16 | License along with the GNU C Library; if not, see |
17 | <http://www.gnu.org/licenses/>. */ | |
01b54066 UD |
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 | ||
27 | static pid_t initial_pid; | |
28 | ||
29 | ||
30 | static void * | |
31 | tf (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 | ||
44 | int | |
45 | main (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 | } |