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efa8adf5 | 1 | /* Test mq_notify. |
2b778ceb | 2 | Copyright (C) 2004-2021 Free Software Foundation, Inc. |
efa8adf5 | 3 | This file is part of the GNU C Library. |
efa8adf5 UD |
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/>. */ |
efa8adf5 UD |
18 | |
19 | #include <errno.h> | |
20 | #include <fcntl.h> | |
21 | #include <mqueue.h> | |
22 | #include <limits.h> | |
23 | #include <signal.h> | |
24 | #include <stdint.h> | |
25 | #include <stdio.h> | |
26 | #include <stdlib.h> | |
27 | #include <string.h> | |
28 | #include <sys/mman.h> | |
29 | #include <sys/time.h> | |
30 | #include <sys/wait.h> | |
31 | #include <time.h> | |
32 | #include <unistd.h> | |
33 | #include "tst-mqueue.h" | |
34 | ||
35 | #if _POSIX_THREADS | |
36 | # include <pthread.h> | |
37 | ||
5adac0e4 UD |
38 | # define mqsend(q) (mqsend) (q, __LINE__) |
39 | static int | |
efa8adf5 UD |
40 | (mqsend) (mqd_t q, int line) |
41 | { | |
42 | char c; | |
43 | if (mq_send (q, &c, 1, 1) != 0) | |
44 | { | |
45 | printf ("mq_send on line %d failed with: %m\n", line); | |
46 | return 1; | |
47 | } | |
48 | return 0; | |
49 | } | |
50 | ||
5adac0e4 UD |
51 | # define mqrecv(q) (mqrecv) (q, __LINE__) |
52 | static int | |
efa8adf5 UD |
53 | (mqrecv) (mqd_t q, int line) |
54 | { | |
55 | char c; | |
56 | ssize_t rets = TEMP_FAILURE_RETRY (mq_receive (q, &c, 1, NULL)); | |
57 | if (rets != 1) | |
58 | { | |
59 | if (rets == -1) | |
60 | printf ("mq_receive on line %d failed with: %m\n", line); | |
61 | else | |
62 | printf ("mq_receive on line %d returned %zd != 1\n", | |
63 | line, rets); | |
64 | return 1; | |
65 | } | |
66 | return 0; | |
67 | } | |
68 | ||
69 | volatile int fct_cnt, fct_err; | |
70 | size_t fct_guardsize; | |
71 | ||
72 | static void | |
73 | fct (union sigval s) | |
74 | { | |
75 | mqd_t q = *(mqd_t *) s.sival_ptr; | |
76 | ||
77 | pthread_attr_t nattr; | |
78 | int ret = pthread_getattr_np (pthread_self (), &nattr); | |
79 | if (ret) | |
80 | { | |
81 | errno = ret; | |
82 | printf ("pthread_getattr_np failed: %m\n"); | |
83 | fct_err = 1; | |
84 | } | |
85 | else | |
86 | { | |
87 | ret = pthread_attr_getguardsize (&nattr, &fct_guardsize); | |
88 | if (ret) | |
89 | { | |
90 | errno = ret; | |
91 | printf ("pthread_attr_getguardsize failed: %m\n"); | |
92 | fct_err = 1; | |
93 | } | |
94 | if (pthread_attr_destroy (&nattr) != 0) | |
95 | { | |
96 | puts ("pthread_attr_destroy failed"); | |
97 | fct_err = 1; | |
98 | } | |
99 | } | |
100 | ||
101 | ++fct_cnt; | |
102 | fct_err |= mqsend (q); | |
103 | } | |
104 | ||
5adac0e4 | 105 | # define TEST_FUNCTION do_test () |
efa8adf5 UD |
106 | static int |
107 | do_test (void) | |
108 | { | |
109 | int result = 0; | |
110 | ||
111 | char name[sizeof "/tst-mqueue6-" + sizeof (pid_t) * 3]; | |
112 | snprintf (name, sizeof (name), "/tst-mqueue6-%u", getpid ()); | |
113 | ||
114 | struct mq_attr attr = { .mq_maxmsg = 1, .mq_msgsize = 1 }; | |
115 | mqd_t q = mq_open (name, O_CREAT | O_EXCL | O_RDWR, 0600, &attr); | |
116 | ||
117 | if (q == (mqd_t) -1) | |
118 | { | |
119 | printf ("mq_open failed with: %m\n"); | |
120 | return result; | |
121 | } | |
122 | else | |
123 | add_temp_mq (name); | |
124 | ||
125 | pthread_attr_t nattr; | |
126 | if (pthread_attr_init (&nattr) | |
127 | || pthread_attr_setguardsize (&nattr, 0)) | |
128 | { | |
129 | puts ("pthread_attr_t setup failed"); | |
130 | result = 1; | |
131 | } | |
132 | ||
133 | fct_guardsize = 1; | |
134 | ||
135 | struct sigevent ev; | |
136 | memset (&ev, 0xaa, sizeof (ev)); | |
137 | ev.sigev_notify = SIGEV_THREAD; | |
138 | ev.sigev_notify_function = fct; | |
139 | ev.sigev_notify_attributes = &nattr; | |
140 | ev.sigev_value.sival_ptr = &q; | |
141 | if (mq_notify (q, &ev) != 0) | |
142 | { | |
143 | printf ("mq_notify (q, { SIGEV_THREAD }) failed with: %m\n"); | |
144 | result = 1; | |
145 | } | |
146 | ||
147 | size_t ps = sysconf (_SC_PAGESIZE); | |
148 | if (pthread_attr_setguardsize (&nattr, 32 * ps)) | |
149 | { | |
150 | puts ("pthread_attr_t setup failed"); | |
151 | result = 1; | |
152 | } | |
153 | ||
154 | if (mq_notify (q, &ev) == 0) | |
155 | { | |
156 | puts ("second mq_notify (q, { SIGEV_NONE }) unexpectedly succeeded"); | |
157 | result = 1; | |
158 | } | |
159 | else if (errno != EBUSY) | |
160 | { | |
161 | printf ("second mq_notify (q, { SIGEV_NONE }) failed with: %m\n"); | |
162 | result = 1; | |
163 | } | |
164 | ||
165 | if (fct_cnt != 0) | |
166 | { | |
167 | printf ("fct called too early (%d on %d)\n", fct_cnt, __LINE__); | |
168 | result = 1; | |
169 | } | |
170 | ||
171 | result |= mqsend (q); | |
172 | ||
173 | result |= mqrecv (q); | |
174 | result |= mqrecv (q); | |
175 | ||
176 | if (fct_cnt != 1) | |
177 | { | |
178 | printf ("fct not called (%d on %d)\n", fct_cnt, __LINE__); | |
179 | result = 1; | |
180 | } | |
181 | else if (fct_guardsize != 0) | |
182 | { | |
183 | printf ("fct_guardsize %zd != 0\n", fct_guardsize); | |
184 | result = 1; | |
185 | } | |
186 | ||
187 | if (mq_notify (q, &ev) != 0) | |
188 | { | |
189 | printf ("third mq_notify (q, { SIGEV_NONE }) failed with: %m\n"); | |
190 | result = 1; | |
191 | } | |
192 | ||
193 | if (mq_notify (q, NULL) != 0) | |
194 | { | |
195 | printf ("mq_notify (q, NULL) failed with: %m\n"); | |
196 | result = 1; | |
197 | } | |
198 | ||
199 | memset (&ev, 0x11, sizeof (ev)); | |
200 | ev.sigev_notify = SIGEV_THREAD; | |
201 | ev.sigev_notify_function = fct; | |
202 | ev.sigev_notify_attributes = &nattr; | |
203 | ev.sigev_value.sival_ptr = &q; | |
204 | if (mq_notify (q, &ev) != 0) | |
205 | { | |
206 | printf ("mq_notify (q, { SIGEV_THREAD }) failed with: %m\n"); | |
207 | result = 1; | |
208 | } | |
209 | ||
210 | if (pthread_attr_setguardsize (&nattr, 0)) | |
211 | { | |
212 | puts ("pthread_attr_t setup failed"); | |
213 | result = 1; | |
214 | } | |
215 | ||
216 | if (mq_notify (q, &ev) == 0) | |
217 | { | |
218 | puts ("second mq_notify (q, { SIGEV_NONE }) unexpectedly succeeded"); | |
219 | result = 1; | |
220 | } | |
221 | else if (errno != EBUSY) | |
222 | { | |
223 | printf ("second mq_notify (q, { SIGEV_NONE }) failed with: %m\n"); | |
224 | result = 1; | |
225 | } | |
226 | ||
227 | if (fct_cnt != 1) | |
228 | { | |
229 | printf ("fct called too early (%d on %d)\n", fct_cnt, __LINE__); | |
230 | result = 1; | |
231 | } | |
232 | ||
233 | result |= mqsend (q); | |
234 | ||
235 | result |= mqrecv (q); | |
236 | result |= mqrecv (q); | |
237 | ||
238 | if (fct_cnt != 2) | |
239 | { | |
240 | printf ("fct not called (%d on %d)\n", fct_cnt, __LINE__); | |
241 | result = 1; | |
242 | } | |
243 | else if (fct_guardsize != 32 * ps) | |
244 | { | |
245 | printf ("fct_guardsize %zd != %zd\n", fct_guardsize, 32 * ps); | |
246 | result = 1; | |
247 | } | |
248 | ||
249 | if (mq_notify (q, &ev) != 0) | |
250 | { | |
251 | printf ("third mq_notify (q, { SIGEV_NONE }) failed with: %m\n"); | |
252 | result = 1; | |
253 | } | |
254 | ||
255 | if (mq_notify (q, NULL) != 0) | |
256 | { | |
257 | printf ("mq_notify (q, NULL) failed with: %m\n"); | |
258 | result = 1; | |
259 | } | |
260 | ||
261 | if (pthread_attr_destroy (&nattr) != 0) | |
262 | { | |
263 | puts ("pthread_attr_destroy failed"); | |
264 | result = 1; | |
265 | } | |
266 | ||
267 | if (mq_unlink (name) != 0) | |
268 | { | |
269 | printf ("mq_unlink failed: %m\n"); | |
270 | result = 1; | |
271 | } | |
272 | ||
273 | if (mq_close (q) != 0) | |
274 | { | |
275 | printf ("mq_close failed: %m\n"); | |
276 | result = 1; | |
277 | } | |
278 | ||
279 | memset (&ev, 0x55, sizeof (ev)); | |
280 | ev.sigev_notify = SIGEV_THREAD; | |
281 | ev.sigev_notify_function = fct; | |
282 | ev.sigev_notify_attributes = NULL; | |
283 | ev.sigev_value.sival_int = 0; | |
284 | if (mq_notify (q, &ev) == 0) | |
285 | { | |
286 | puts ("mq_notify on closed mqd_t unexpectedly succeeded"); | |
287 | result = 1; | |
288 | } | |
289 | else if (errno != EBADF) | |
290 | { | |
291 | printf ("mq_notify on closed mqd_t did not fail with EBADF: %m\n"); | |
292 | result = 1; | |
293 | } | |
294 | ||
295 | if (fct_err) | |
296 | result = 1; | |
297 | return result; | |
298 | } | |
299 | #else | |
300 | # define TEST_FUNCTION 0 | |
301 | #endif | |
302 | ||
303 | #include "../test-skeleton.c" |