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6d7e8eda | 1 | /* Copyright (C) 2003-2023 Free Software Foundation, Inc. |
defd1870 | 2 | This file is part of the GNU C Library. |
defd1870 UD |
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 | |
59ba27a6 | 15 | License along with the GNU C Library; if not, see |
5a82c748 | 16 | <https://www.gnu.org/licenses/>. */ |
defd1870 UD |
17 | |
18 | #include <pthread.h> | |
19 | #include <stdio.h> | |
20 | #include <stdlib.h> | |
21 | #include <time.h> | |
22 | #include <unistd.h> | |
23 | ||
24 | ||
defd1870 UD |
25 | static pthread_once_t once = PTHREAD_ONCE_INIT; |
26 | ||
27 | static pthread_cond_t cond = PTHREAD_COND_INITIALIZER; | |
28 | static pthread_mutex_t mut = PTHREAD_MUTEX_INITIALIZER; | |
29 | ||
30 | static pthread_barrier_t bar; | |
31 | ||
32 | static int global; | |
3a4d1e1e | 33 | static int cl_called; |
defd1870 UD |
34 | |
35 | static void | |
36 | once_handler1 (void) | |
37 | { | |
38 | if (pthread_mutex_lock (&mut) != 0) | |
39 | { | |
40 | puts ("once_handler1: mutex_lock failed"); | |
41 | exit (1); | |
42 | } | |
43 | ||
44 | int r = pthread_barrier_wait (&bar); | |
45 | if (r != 0 && r!= PTHREAD_BARRIER_SERIAL_THREAD) | |
46 | { | |
47 | puts ("once_handler1: barrier_wait failed"); | |
48 | exit (1); | |
49 | } | |
50 | ||
51 | pthread_cond_wait (&cond, &mut); | |
52 | ||
53 | /* We should never get here. */ | |
54 | } | |
55 | ||
56 | ||
57 | static void | |
58 | once_handler2 (void) | |
59 | { | |
60 | global = 1; | |
61 | } | |
62 | ||
63 | ||
3a4d1e1e UD |
64 | static void |
65 | cl (void *arg) | |
66 | { | |
67 | ++cl_called; | |
68 | } | |
69 | ||
70 | ||
defd1870 UD |
71 | static void * |
72 | tf1 (void *arg) | |
73 | { | |
3a4d1e1e UD |
74 | pthread_cleanup_push (cl, NULL); |
75 | ||
defd1870 UD |
76 | pthread_once (&once, once_handler1); |
77 | ||
3a4d1e1e UD |
78 | pthread_cleanup_pop (0); |
79 | ||
defd1870 UD |
80 | /* We should never get here. */ |
81 | puts ("pthread_once in tf returned"); | |
82 | exit (1); | |
83 | } | |
84 | ||
85 | ||
86 | static void * | |
87 | tf2 (void *arg) | |
88 | { | |
3a4d1e1e UD |
89 | pthread_cleanup_push (cl, NULL); |
90 | ||
defd1870 UD |
91 | int r = pthread_barrier_wait (&bar); |
92 | if (r != 0 && r!= PTHREAD_BARRIER_SERIAL_THREAD) | |
93 | { | |
94 | puts ("once_handler2: barrier_wait failed"); | |
95 | exit (1); | |
96 | } | |
97 | ||
3a4d1e1e UD |
98 | pthread_cleanup_pop (0); |
99 | ||
defd1870 UD |
100 | pthread_once (&once, once_handler2); |
101 | ||
102 | return NULL; | |
103 | } | |
104 | ||
105 | ||
106 | static int | |
107 | do_test (void) | |
108 | { | |
109 | pthread_t th[2]; | |
110 | ||
111 | if (pthread_barrier_init (&bar, NULL, 2) != 0) | |
112 | { | |
113 | puts ("barrier_init failed"); | |
3a4d1e1e | 114 | return 1; |
defd1870 UD |
115 | } |
116 | ||
117 | if (pthread_create (&th[0], NULL, tf1, NULL) != 0) | |
118 | { | |
119 | puts ("first create failed"); | |
3a4d1e1e | 120 | return 1; |
defd1870 UD |
121 | } |
122 | ||
123 | int r = pthread_barrier_wait (&bar); | |
124 | if (r != 0 && r!= PTHREAD_BARRIER_SERIAL_THREAD) | |
125 | { | |
126 | puts ("first barrier_wait failed"); | |
3a4d1e1e | 127 | return 1; |
defd1870 UD |
128 | } |
129 | ||
130 | if (pthread_mutex_lock (&mut) != 0) | |
131 | { | |
132 | puts ("mutex_lock failed"); | |
3a4d1e1e | 133 | return 1; |
defd1870 UD |
134 | } |
135 | /* We unlock the mutex so that we catch the case where the pthread_cond_wait | |
136 | call incorrectly resumes and tries to get the mutex. */ | |
137 | if (pthread_mutex_unlock (&mut) != 0) | |
138 | { | |
139 | puts ("mutex_unlock failed"); | |
3a4d1e1e | 140 | return 1; |
defd1870 UD |
141 | } |
142 | ||
143 | if (pthread_create (&th[1], NULL, tf2, NULL) != 0) | |
144 | { | |
145 | puts ("second create failed"); | |
3a4d1e1e | 146 | return 1; |
defd1870 UD |
147 | } |
148 | ||
149 | r = pthread_barrier_wait (&bar); | |
150 | if (r != 0 && r!= PTHREAD_BARRIER_SERIAL_THREAD) | |
151 | { | |
152 | puts ("second barrier_wait failed"); | |
3a4d1e1e | 153 | return 1; |
defd1870 UD |
154 | } |
155 | ||
156 | /* Give the second thread a chance to reach the pthread_once call. */ | |
157 | sleep (2); | |
158 | ||
159 | /* Cancel the thread. */ | |
160 | if (pthread_cancel (th[0]) != 0) | |
161 | { | |
162 | puts ("cancel failed"); | |
3a4d1e1e | 163 | return 1; |
defd1870 UD |
164 | } |
165 | ||
166 | void *result; | |
167 | pthread_join (th[0], &result); | |
168 | if (result != PTHREAD_CANCELED) | |
169 | { | |
170 | puts ("first join didn't return PTHREAD_CANCELED"); | |
3a4d1e1e | 171 | return 1; |
defd1870 UD |
172 | } |
173 | ||
174 | puts ("joined first thread"); | |
175 | ||
176 | pthread_join (th[1], &result); | |
177 | if (result != NULL) | |
178 | { | |
179 | puts ("second join didn't return PTHREAD_CANCELED"); | |
3a4d1e1e | 180 | return 1; |
defd1870 UD |
181 | } |
182 | ||
183 | if (global != 1) | |
184 | { | |
185 | puts ("global still 0"); | |
3a4d1e1e UD |
186 | return 1; |
187 | } | |
188 | ||
189 | if (cl_called != 1) | |
190 | { | |
191 | printf ("cl_called = %d\n", cl_called); | |
192 | return 1; | |
defd1870 UD |
193 | } |
194 | ||
195 | return 0; | |
196 | } | |
197 | ||
198 | #define TEST_FUNCTION do_test () | |
defd1870 | 199 | #include "../test-skeleton.c" |