1 | /* Test mq_notify. |
2 | Copyright (C) 2004-2022 Free Software Foundation, Inc. |
3 | This file is part of the GNU C Library. |
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 |
16 | License along with the GNU C Library; if not, see |
17 | <https://www.gnu.org/licenses/>. */ |
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 <support/check.h> |
34 | #include "tst-mqueue.h" |
35 | |
36 | #if _POSIX_THREADS |
37 | # include <pthread.h> |
38 | |
39 | # define mqsend(q) (mqsend) (q, __LINE__) |
40 | static int |
41 | (mqsend) (mqd_t q, int line) |
42 | { |
43 | char c; |
44 | if (mq_send (mqdes: q, msg_ptr: &c, msg_len: 1, msg_prio: 1) != 0) |
45 | { |
46 | printf (format: "mq_send on line %d failed with: %m\n" , line); |
47 | return 1; |
48 | } |
49 | return 0; |
50 | } |
51 | |
52 | # define mqrecv(q) (mqrecv) (q, __LINE__) |
53 | static int |
54 | (mqrecv) (mqd_t q, int line) |
55 | { |
56 | char c; |
57 | ssize_t rets = TEMP_FAILURE_RETRY (mq_receive (q, &c, 1, NULL)); |
58 | if (rets != 1) |
59 | { |
60 | if (rets == -1) |
61 | printf (format: "mq_receive on line %d failed with: %m\n" , line); |
62 | else |
63 | printf (format: "mq_receive on line %d returned %zd != 1\n" , |
64 | line, rets); |
65 | return 1; |
66 | } |
67 | return 0; |
68 | } |
69 | |
70 | volatile int fct_cnt, fct_err; |
71 | size_t fct_guardsize; |
72 | |
73 | static void |
74 | fct (union sigval s) |
75 | { |
76 | mqd_t q = *(mqd_t *) s.sival_ptr; |
77 | |
78 | pthread_attr_t nattr; |
79 | int ret = pthread_getattr_np (th: pthread_self (), attr: &nattr); |
80 | if (ret) |
81 | { |
82 | errno = ret; |
83 | printf (format: "pthread_getattr_np failed: %m\n" ); |
84 | fct_err = 1; |
85 | } |
86 | else |
87 | { |
88 | ret = pthread_attr_getguardsize (attr: &nattr, guardsize: &fct_guardsize); |
89 | if (ret) |
90 | { |
91 | errno = ret; |
92 | printf (format: "pthread_attr_getguardsize failed: %m\n" ); |
93 | fct_err = 1; |
94 | } |
95 | if (pthread_attr_destroy (attr: &nattr) != 0) |
96 | { |
97 | puts (s: "pthread_attr_destroy failed" ); |
98 | fct_err = 1; |
99 | } |
100 | } |
101 | |
102 | ++fct_cnt; |
103 | fct_err |= mqsend (q); |
104 | } |
105 | |
106 | # define TEST_FUNCTION do_test () |
107 | static int |
108 | do_test (void) |
109 | { |
110 | int result = 0; |
111 | |
112 | char name[sizeof "/tst-mqueue6-" + sizeof (pid_t) * 3]; |
113 | snprintf (s: name, maxlen: sizeof (name), format: "/tst-mqueue6-%u" , getpid ()); |
114 | |
115 | struct mq_attr attr = { .mq_maxmsg = 1, .mq_msgsize = 1 }; |
116 | mqd_t q = mq_open (name: name, O_CREAT | O_EXCL | O_RDWR, 0600, &attr); |
117 | |
118 | if (q == (mqd_t) -1) |
119 | { |
120 | if (errno == ENOSYS) |
121 | FAIL_UNSUPPORTED ("mq_open not supported" ); |
122 | |
123 | printf (format: "mq_open failed with: %m\n" ); |
124 | return 1; |
125 | } |
126 | |
127 | add_temp_mq (name); |
128 | |
129 | pthread_attr_t nattr; |
130 | if (pthread_attr_init (attr: &nattr) |
131 | || pthread_attr_setguardsize (attr: &nattr, guardsize: 0)) |
132 | { |
133 | puts (s: "pthread_attr_t setup failed" ); |
134 | result = 1; |
135 | } |
136 | |
137 | fct_guardsize = 1; |
138 | |
139 | struct sigevent ev; |
140 | memset (&ev, 0xaa, sizeof (ev)); |
141 | ev.sigev_notify = SIGEV_THREAD; |
142 | ev.sigev_notify_function = fct; |
143 | ev.sigev_notify_attributes = &nattr; |
144 | ev.sigev_value.sival_ptr = &q; |
145 | if (mq_notify (mqdes: q, notification: &ev) != 0) |
146 | { |
147 | printf (format: "mq_notify (q, { SIGEV_THREAD }) failed with: %m\n" ); |
148 | result = 1; |
149 | } |
150 | |
151 | size_t ps = sysconf (_SC_PAGESIZE); |
152 | if (pthread_attr_setguardsize (attr: &nattr, guardsize: 32 * ps)) |
153 | { |
154 | puts (s: "pthread_attr_t setup failed" ); |
155 | result = 1; |
156 | } |
157 | |
158 | if (mq_notify (mqdes: q, notification: &ev) == 0) |
159 | { |
160 | puts (s: "second mq_notify (q, { SIGEV_NONE }) unexpectedly succeeded" ); |
161 | result = 1; |
162 | } |
163 | else if (errno != EBUSY) |
164 | { |
165 | printf (format: "second mq_notify (q, { SIGEV_NONE }) failed with: %m\n" ); |
166 | result = 1; |
167 | } |
168 | |
169 | if (fct_cnt != 0) |
170 | { |
171 | printf (format: "fct called too early (%d on %d)\n" , fct_cnt, __LINE__); |
172 | result = 1; |
173 | } |
174 | |
175 | result |= mqsend (q); |
176 | |
177 | result |= mqrecv (q); |
178 | result |= mqrecv (q); |
179 | |
180 | if (fct_cnt != 1) |
181 | { |
182 | printf (format: "fct not called (%d on %d)\n" , fct_cnt, __LINE__); |
183 | result = 1; |
184 | } |
185 | else if (fct_guardsize != 0) |
186 | { |
187 | printf (format: "fct_guardsize %zd != 0\n" , fct_guardsize); |
188 | result = 1; |
189 | } |
190 | |
191 | if (mq_notify (mqdes: q, notification: &ev) != 0) |
192 | { |
193 | printf (format: "third mq_notify (q, { SIGEV_NONE }) failed with: %m\n" ); |
194 | result = 1; |
195 | } |
196 | |
197 | if (mq_notify (mqdes: q, NULL) != 0) |
198 | { |
199 | printf (format: "mq_notify (q, NULL) failed with: %m\n" ); |
200 | result = 1; |
201 | } |
202 | |
203 | memset (&ev, 0x11, sizeof (ev)); |
204 | ev.sigev_notify = SIGEV_THREAD; |
205 | ev.sigev_notify_function = fct; |
206 | ev.sigev_notify_attributes = &nattr; |
207 | ev.sigev_value.sival_ptr = &q; |
208 | if (mq_notify (mqdes: q, notification: &ev) != 0) |
209 | { |
210 | printf (format: "mq_notify (q, { SIGEV_THREAD }) failed with: %m\n" ); |
211 | result = 1; |
212 | } |
213 | |
214 | if (pthread_attr_setguardsize (attr: &nattr, guardsize: 0)) |
215 | { |
216 | puts (s: "pthread_attr_t setup failed" ); |
217 | result = 1; |
218 | } |
219 | |
220 | if (mq_notify (mqdes: q, notification: &ev) == 0) |
221 | { |
222 | puts (s: "second mq_notify (q, { SIGEV_NONE }) unexpectedly succeeded" ); |
223 | result = 1; |
224 | } |
225 | else if (errno != EBUSY) |
226 | { |
227 | printf (format: "second mq_notify (q, { SIGEV_NONE }) failed with: %m\n" ); |
228 | result = 1; |
229 | } |
230 | |
231 | if (fct_cnt != 1) |
232 | { |
233 | printf (format: "fct called too early (%d on %d)\n" , fct_cnt, __LINE__); |
234 | result = 1; |
235 | } |
236 | |
237 | result |= mqsend (q); |
238 | |
239 | result |= mqrecv (q); |
240 | result |= mqrecv (q); |
241 | |
242 | if (fct_cnt != 2) |
243 | { |
244 | printf (format: "fct not called (%d on %d)\n" , fct_cnt, __LINE__); |
245 | result = 1; |
246 | } |
247 | else if (fct_guardsize != 32 * ps) |
248 | { |
249 | printf (format: "fct_guardsize %zd != %zd\n" , fct_guardsize, 32 * ps); |
250 | result = 1; |
251 | } |
252 | |
253 | if (mq_notify (mqdes: q, notification: &ev) != 0) |
254 | { |
255 | printf (format: "third mq_notify (q, { SIGEV_NONE }) failed with: %m\n" ); |
256 | result = 1; |
257 | } |
258 | |
259 | if (mq_notify (mqdes: q, NULL) != 0) |
260 | { |
261 | printf (format: "mq_notify (q, NULL) failed with: %m\n" ); |
262 | result = 1; |
263 | } |
264 | |
265 | if (pthread_attr_destroy (attr: &nattr) != 0) |
266 | { |
267 | puts (s: "pthread_attr_destroy failed" ); |
268 | result = 1; |
269 | } |
270 | |
271 | if (mq_unlink (name: name) != 0) |
272 | { |
273 | printf (format: "mq_unlink failed: %m\n" ); |
274 | result = 1; |
275 | } |
276 | |
277 | if (mq_close (mqdes: q) != 0) |
278 | { |
279 | printf (format: "mq_close failed: %m\n" ); |
280 | result = 1; |
281 | } |
282 | |
283 | memset (&ev, 0x55, sizeof (ev)); |
284 | ev.sigev_notify = SIGEV_THREAD; |
285 | ev.sigev_notify_function = fct; |
286 | ev.sigev_notify_attributes = NULL; |
287 | ev.sigev_value.sival_int = 0; |
288 | if (mq_notify (mqdes: q, notification: &ev) == 0) |
289 | { |
290 | puts (s: "mq_notify on closed mqd_t unexpectedly succeeded" ); |
291 | result = 1; |
292 | } |
293 | else if (errno != EBADF) |
294 | { |
295 | printf (format: "mq_notify on closed mqd_t did not fail with EBADF: %m\n" ); |
296 | result = 1; |
297 | } |
298 | |
299 | if (fct_err) |
300 | result = 1; |
301 | return result; |
302 | } |
303 | #else |
304 | # define TEST_FUNCTION 0 |
305 | #endif |
306 | |
307 | #include "../test-skeleton.c" |
308 | |