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d614a753 | 1 | /* Copyright (C) 2002-2020 Free Software Foundation, Inc. |
76a50749 UD |
2 | This file is part of the GNU C Library. |
3 | Contributed by Ulrich Drepper <drepper@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 | 16 | License along with the GNU C Library; if not, see |
5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
76a50749 | 18 | |
dfdd294a | 19 | #include <errno.h> |
76a50749 UD |
20 | #include <pthread.h> |
21 | #include <stdio.h> | |
22 | #include <stdlib.h> | |
23 | #include <unistd.h> | |
dfdd294a | 24 | #include <sys/wait.h> |
76a50749 UD |
25 | |
26 | ||
27 | static int val; | |
28 | ||
29 | ||
30 | static void | |
31 | prepare1 (void) | |
32 | { | |
33 | val *= 2; | |
34 | } | |
35 | ||
36 | static void | |
37 | prepare2 (void) | |
38 | { | |
39 | ++val; | |
40 | } | |
41 | ||
42 | static void | |
43 | parent1 (void) | |
44 | { | |
45 | val += 4; | |
46 | } | |
47 | ||
48 | static void | |
49 | parent2 (void) | |
50 | { | |
51 | val *= 4; | |
52 | } | |
53 | ||
54 | static void | |
55 | child1 (void) | |
56 | { | |
57 | val += 8; | |
58 | } | |
59 | ||
60 | static void | |
61 | child2 (void) | |
62 | { | |
63 | val *= 8; | |
64 | } | |
65 | ||
66 | ||
67 | static int | |
68 | do_test (void) | |
69 | { | |
70 | pid_t pid; | |
dfdd294a | 71 | int status = 0; |
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72 | |
73 | if (pthread_atfork (prepare1, parent1, child1) != 0) | |
74 | { | |
75 | puts ("1st atfork failed"); | |
76 | exit (1); | |
77 | } | |
78 | if (pthread_atfork (prepare2, parent2, child2) != 0) | |
79 | { | |
80 | puts ("2nd atfork failed"); | |
81 | exit (1); | |
82 | } | |
83 | ||
84 | pid = fork (); | |
85 | if (pid == -1) | |
86 | { | |
87 | puts ("fork failed"); | |
88 | exit (1); | |
89 | } | |
90 | ||
91 | if (pid != 0) | |
92 | { | |
93 | /* Parent. */ | |
94 | if (val != 24) | |
95 | { | |
96 | printf ("expected val=%d, got %d\n", 24, val); | |
97 | exit (1); | |
98 | } | |
dfdd294a UD |
99 | |
100 | if (TEMP_FAILURE_RETRY (waitpid (pid, &status, 0)) != pid) | |
101 | { | |
102 | puts ("waitpid failed"); | |
103 | exit (1); | |
104 | } | |
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105 | } |
106 | else | |
107 | { | |
108 | /* Child. */ | |
109 | if (val != 80) | |
110 | { | |
111 | printf ("expected val=%d, got %d\n", 80, val); | |
dfdd294a | 112 | exit (2); |
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113 | } |
114 | } | |
115 | ||
dfdd294a | 116 | return status; |
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117 | } |
118 | ||
119 | #define TEST_FUNCTION do_test () | |
120 | #include "../test-skeleton.c" |