1 | /* Copyright (C) 2003-2024 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 <time.h> |
23 | #include <unistd.h> |
24 | |
25 | |
26 | static pthread_barrier_t b; |
27 | |
28 | |
29 | /* Cleanup handling test. */ |
30 | static int cl_called; |
31 | |
32 | static void |
33 | cl (void *arg) |
34 | { |
35 | ++cl_called; |
36 | } |
37 | |
38 | |
39 | static void * |
40 | tf (void *arg) |
41 | { |
42 | int r = pthread_barrier_wait (barrier: &b); |
43 | if (r != 0 && r != PTHREAD_BARRIER_SERIAL_THREAD) |
44 | { |
45 | puts (s: "barrier_wait failed" ); |
46 | exit (1); |
47 | } |
48 | |
49 | pthread_cleanup_push (cl, NULL); |
50 | |
51 | struct timespec ts = { .tv_sec = arg == NULL ? 10000000 : 0, .tv_nsec = 0 }; |
52 | TEMP_FAILURE_RETRY (clock_nanosleep (CLOCK_REALTIME, 0, &ts, &ts)); |
53 | |
54 | pthread_cleanup_pop (0); |
55 | |
56 | puts (s: "clock_nanosleep returned" ); |
57 | |
58 | exit (1); |
59 | } |
60 | |
61 | |
62 | static int |
63 | do_test (void) |
64 | { |
65 | if (pthread_barrier_init (barrier: &b, NULL, count: 2) != 0) |
66 | { |
67 | puts (s: "barrier_init failed" ); |
68 | return 1; |
69 | } |
70 | |
71 | pthread_t th; |
72 | if (pthread_create (newthread: &th, NULL, start_routine: tf, NULL) != 0) |
73 | { |
74 | puts (s: "1st create failed" ); |
75 | return 1; |
76 | } |
77 | |
78 | int r = pthread_barrier_wait (barrier: &b); |
79 | if (r != 0 && r != PTHREAD_BARRIER_SERIAL_THREAD) |
80 | { |
81 | puts (s: "barrier_wait failed" ); |
82 | exit (1); |
83 | } |
84 | |
85 | struct timespec ts = { .tv_sec = 0, .tv_nsec = 100000000 }; |
86 | while (nanosleep (requested_time: &ts, remaining: &ts) != 0) |
87 | continue; |
88 | |
89 | puts (s: "going to cancel in-time" ); |
90 | if (pthread_cancel (th: th) != 0) |
91 | { |
92 | puts (s: "1st cancel failed" ); |
93 | return 1; |
94 | } |
95 | |
96 | void *status; |
97 | if (pthread_join (th: th, thread_return: &status) != 0) |
98 | { |
99 | puts (s: "1st join failed" ); |
100 | return 1; |
101 | } |
102 | if (status != PTHREAD_CANCELED) |
103 | { |
104 | puts (s: "1st thread not canceled" ); |
105 | return 1; |
106 | } |
107 | |
108 | if (cl_called == 0) |
109 | { |
110 | puts (s: "cleanup handler not called" ); |
111 | return 1; |
112 | } |
113 | if (cl_called > 1) |
114 | { |
115 | puts (s: "cleanup handler called more than once" ); |
116 | return 1; |
117 | } |
118 | |
119 | puts (s: "in-time cancellation succeeded" ); |
120 | |
121 | |
122 | cl_called = 0; |
123 | |
124 | if (pthread_create (newthread: &th, NULL, start_routine: tf, NULL) != 0) |
125 | { |
126 | puts (s: "2nd create failed" ); |
127 | return 1; |
128 | } |
129 | |
130 | puts (s: "going to cancel early" ); |
131 | if (pthread_cancel (th: th) != 0) |
132 | { |
133 | puts (s: "2nd cancel failed" ); |
134 | return 1; |
135 | } |
136 | |
137 | r = pthread_barrier_wait (barrier: &b); |
138 | if (r != 0 && r != PTHREAD_BARRIER_SERIAL_THREAD) |
139 | { |
140 | puts (s: "barrier_wait failed" ); |
141 | exit (1); |
142 | } |
143 | |
144 | if (pthread_join (th: th, thread_return: &status) != 0) |
145 | { |
146 | puts (s: "2nd join failed" ); |
147 | return 1; |
148 | } |
149 | if (status != PTHREAD_CANCELED) |
150 | { |
151 | puts (s: "2nd thread not canceled" ); |
152 | return 1; |
153 | } |
154 | |
155 | if (cl_called == 0) |
156 | { |
157 | printf (format: "cleanup handler not called\n" ); |
158 | return 1; |
159 | } |
160 | if (cl_called > 1) |
161 | { |
162 | printf (format: "cleanup handler called more than once\n" ); |
163 | return 1; |
164 | } |
165 | |
166 | puts (s: "early cancellation succeeded" ); |
167 | |
168 | return 0; |
169 | } |
170 | |
171 | #define TEST_FUNCTION do_test () |
172 | #include "../test-skeleton.c" |
173 | |