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 <errno.h> |
19 | #include <pthread.h> |
20 | #include <stdio.h> |
21 | #include <stdlib.h> |
22 | #include <string.h> |
23 | #include <unistd.h> |
24 | #include <sys/wait.h> |
25 | |
26 | static void * |
27 | thread_function (void * arg) |
28 | { |
29 | int i = (intptr_t) arg; |
30 | int status; |
31 | pid_t pid; |
32 | pid_t pid2; |
33 | |
34 | pid = fork (); |
35 | switch (pid) |
36 | { |
37 | case 0: |
38 | printf (format: "%ld for %d\n" , (long int) getpid (), i); |
39 | struct timespec ts = { .tv_sec = 0, .tv_nsec = 100000000 * i }; |
40 | nanosleep (requested_time: &ts, NULL); |
41 | _exit (i); |
42 | break; |
43 | case -1: |
44 | printf (format: "fork: %m\n" ); |
45 | return (void *) 1l; |
46 | break; |
47 | } |
48 | |
49 | pid2 = TEMP_FAILURE_RETRY (waitpid (pid, &status, 0)); |
50 | if (pid2 != pid) |
51 | { |
52 | printf (format: "waitpid returned %ld, expected %ld\n" , |
53 | (long int) pid2, (long int) pid); |
54 | return (void *) 1l; |
55 | } |
56 | |
57 | printf (format: "%ld with %d, expected %d\n" , |
58 | (long int) pid, WEXITSTATUS (status), i); |
59 | |
60 | return WEXITSTATUS (status) == i ? NULL : (void *) 1l; |
61 | } |
62 | |
63 | #define N 5 |
64 | static const int t[N] = { 7, 6, 5, 4, 3 }; |
65 | |
66 | static int |
67 | do_test (void) |
68 | { |
69 | pthread_t th[N]; |
70 | int i; |
71 | int result = 0; |
72 | pthread_attr_t at; |
73 | |
74 | if (pthread_attr_init (attr: &at) != 0) |
75 | { |
76 | puts (s: "attr_init failed" ); |
77 | return 1; |
78 | } |
79 | |
80 | if (pthread_attr_setstacksize (attr: &at, stacksize: 1 * 1024 * 1024) != 0) |
81 | { |
82 | puts (s: "attr_setstacksize failed" ); |
83 | return 1; |
84 | } |
85 | |
86 | for (i = 0; i < N; ++i) |
87 | if (pthread_create (newthread: &th[i], NULL, start_routine: thread_function, |
88 | arg: (void *) (intptr_t) t[i]) != 0) |
89 | { |
90 | printf (format: "creation of thread %d failed\n" , i); |
91 | exit (1); |
92 | } |
93 | |
94 | if (pthread_attr_destroy (attr: &at) != 0) |
95 | { |
96 | puts (s: "attr_destroy failed" ); |
97 | return 1; |
98 | } |
99 | |
100 | for (i = 0; i < N; ++i) |
101 | { |
102 | void *v; |
103 | if (pthread_join (th: th[i], thread_return: &v) != 0) |
104 | { |
105 | printf (format: "join of thread %d failed\n" , i); |
106 | result = 1; |
107 | } |
108 | else if (v != NULL) |
109 | { |
110 | printf (format: "join %d successful, but child failed\n" , i); |
111 | result = 1; |
112 | } |
113 | else |
114 | printf (format: "join %d successful\n" , i); |
115 | } |
116 | |
117 | return result; |
118 | } |
119 | |
120 | #include <support/test-driver.c> |
121 | |