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efa8adf5 | 1 | /* Test mq_notify. |
d614a753 | 2 | Copyright (C) 2004-2020 Free Software Foundation, Inc. |
efa8adf5 UD |
3 | This file is part of the GNU C Library. |
4 | Contributed by Jakub Jelinek <jakub@redhat.com>, 2004. | |
5 | ||
6 | The GNU C Library is free software; you can redistribute it and/or | |
7 | modify it under the terms of the GNU Lesser General Public | |
8 | License as published by the Free Software Foundation; either | |
9 | version 2.1 of the License, or (at your option) any later version. | |
10 | ||
11 | The GNU C Library is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | Lesser General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU Lesser General Public | |
59ba27a6 | 17 | License along with the GNU C Library; if not, see |
5a82c748 | 18 | <https://www.gnu.org/licenses/>. */ |
efa8adf5 UD |
19 | |
20 | #include <errno.h> | |
21 | #include <fcntl.h> | |
22 | #include <mqueue.h> | |
23 | #include <limits.h> | |
24 | #include <signal.h> | |
25 | #include <stdint.h> | |
26 | #include <stdio.h> | |
27 | #include <stdlib.h> | |
28 | #include <string.h> | |
29 | #include <sys/mman.h> | |
30 | #include <sys/time.h> | |
31 | #include <sys/wait.h> | |
32 | #include <time.h> | |
33 | #include <unistd.h> | |
34 | #include "tst-mqueue.h" | |
35 | ||
36 | #if _POSIX_THREADS | |
37 | # include <pthread.h> | |
38 | ||
5adac0e4 UD |
39 | # define mqsend(q) (mqsend) (q, __LINE__) |
40 | static int | |
efa8adf5 UD |
41 | (mqsend) (mqd_t q, int line) |
42 | { | |
43 | char c; | |
44 | if (mq_send (q, &c, 1, 1) != 0) | |
45 | { | |
46 | printf ("mq_send on line %d failed with: %m\n", line); | |
47 | return 1; | |
48 | } | |
49 | return 0; | |
50 | } | |
51 | ||
5adac0e4 UD |
52 | # define mqrecv(q) (mqrecv) (q, __LINE__) |
53 | static int | |
efa8adf5 UD |
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 ("mq_receive on line %d failed with: %m\n", line); | |
62 | else | |
63 | printf ("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 (pthread_self (), &nattr); | |
80 | if (ret) | |
81 | { | |
82 | errno = ret; | |
83 | printf ("pthread_getattr_np failed: %m\n"); | |
84 | fct_err = 1; | |
85 | } | |
86 | else | |
87 | { | |
88 | ret = pthread_attr_getguardsize (&nattr, &fct_guardsize); | |
89 | if (ret) | |
90 | { | |
91 | errno = ret; | |
92 | printf ("pthread_attr_getguardsize failed: %m\n"); | |
93 | fct_err = 1; | |
94 | } | |
95 | if (pthread_attr_destroy (&nattr) != 0) | |
96 | { | |
97 | puts ("pthread_attr_destroy failed"); | |
98 | fct_err = 1; | |
99 | } | |
100 | } | |
101 | ||
102 | ++fct_cnt; | |
103 | fct_err |= mqsend (q); | |
104 | } | |
105 | ||
5adac0e4 | 106 | # define TEST_FUNCTION do_test () |
efa8adf5 UD |
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 (name, sizeof (name), "/tst-mqueue6-%u", getpid ()); | |
114 | ||
115 | struct mq_attr attr = { .mq_maxmsg = 1, .mq_msgsize = 1 }; | |
116 | mqd_t q = mq_open (name, O_CREAT | O_EXCL | O_RDWR, 0600, &attr); | |
117 | ||
118 | if (q == (mqd_t) -1) | |
119 | { | |
120 | printf ("mq_open failed with: %m\n"); | |
121 | return result; | |
122 | } | |
123 | else | |
124 | add_temp_mq (name); | |
125 | ||
126 | pthread_attr_t nattr; | |
127 | if (pthread_attr_init (&nattr) | |
128 | || pthread_attr_setguardsize (&nattr, 0)) | |
129 | { | |
130 | puts ("pthread_attr_t setup failed"); | |
131 | result = 1; | |
132 | } | |
133 | ||
134 | fct_guardsize = 1; | |
135 | ||
136 | struct sigevent ev; | |
137 | memset (&ev, 0xaa, sizeof (ev)); | |
138 | ev.sigev_notify = SIGEV_THREAD; | |
139 | ev.sigev_notify_function = fct; | |
140 | ev.sigev_notify_attributes = &nattr; | |
141 | ev.sigev_value.sival_ptr = &q; | |
142 | if (mq_notify (q, &ev) != 0) | |
143 | { | |
144 | printf ("mq_notify (q, { SIGEV_THREAD }) failed with: %m\n"); | |
145 | result = 1; | |
146 | } | |
147 | ||
148 | size_t ps = sysconf (_SC_PAGESIZE); | |
149 | if (pthread_attr_setguardsize (&nattr, 32 * ps)) | |
150 | { | |
151 | puts ("pthread_attr_t setup failed"); | |
152 | result = 1; | |
153 | } | |
154 | ||
155 | if (mq_notify (q, &ev) == 0) | |
156 | { | |
157 | puts ("second mq_notify (q, { SIGEV_NONE }) unexpectedly succeeded"); | |
158 | result = 1; | |
159 | } | |
160 | else if (errno != EBUSY) | |
161 | { | |
162 | printf ("second mq_notify (q, { SIGEV_NONE }) failed with: %m\n"); | |
163 | result = 1; | |
164 | } | |
165 | ||
166 | if (fct_cnt != 0) | |
167 | { | |
168 | printf ("fct called too early (%d on %d)\n", fct_cnt, __LINE__); | |
169 | result = 1; | |
170 | } | |
171 | ||
172 | result |= mqsend (q); | |
173 | ||
174 | result |= mqrecv (q); | |
175 | result |= mqrecv (q); | |
176 | ||
177 | if (fct_cnt != 1) | |
178 | { | |
179 | printf ("fct not called (%d on %d)\n", fct_cnt, __LINE__); | |
180 | result = 1; | |
181 | } | |
182 | else if (fct_guardsize != 0) | |
183 | { | |
184 | printf ("fct_guardsize %zd != 0\n", fct_guardsize); | |
185 | result = 1; | |
186 | } | |
187 | ||
188 | if (mq_notify (q, &ev) != 0) | |
189 | { | |
190 | printf ("third mq_notify (q, { SIGEV_NONE }) failed with: %m\n"); | |
191 | result = 1; | |
192 | } | |
193 | ||
194 | if (mq_notify (q, NULL) != 0) | |
195 | { | |
196 | printf ("mq_notify (q, NULL) failed with: %m\n"); | |
197 | result = 1; | |
198 | } | |
199 | ||
200 | memset (&ev, 0x11, sizeof (ev)); | |
201 | ev.sigev_notify = SIGEV_THREAD; | |
202 | ev.sigev_notify_function = fct; | |
203 | ev.sigev_notify_attributes = &nattr; | |
204 | ev.sigev_value.sival_ptr = &q; | |
205 | if (mq_notify (q, &ev) != 0) | |
206 | { | |
207 | printf ("mq_notify (q, { SIGEV_THREAD }) failed with: %m\n"); | |
208 | result = 1; | |
209 | } | |
210 | ||
211 | if (pthread_attr_setguardsize (&nattr, 0)) | |
212 | { | |
213 | puts ("pthread_attr_t setup failed"); | |
214 | result = 1; | |
215 | } | |
216 | ||
217 | if (mq_notify (q, &ev) == 0) | |
218 | { | |
219 | puts ("second mq_notify (q, { SIGEV_NONE }) unexpectedly succeeded"); | |
220 | result = 1; | |
221 | } | |
222 | else if (errno != EBUSY) | |
223 | { | |
224 | printf ("second mq_notify (q, { SIGEV_NONE }) failed with: %m\n"); | |
225 | result = 1; | |
226 | } | |
227 | ||
228 | if (fct_cnt != 1) | |
229 | { | |
230 | printf ("fct called too early (%d on %d)\n", fct_cnt, __LINE__); | |
231 | result = 1; | |
232 | } | |
233 | ||
234 | result |= mqsend (q); | |
235 | ||
236 | result |= mqrecv (q); | |
237 | result |= mqrecv (q); | |
238 | ||
239 | if (fct_cnt != 2) | |
240 | { | |
241 | printf ("fct not called (%d on %d)\n", fct_cnt, __LINE__); | |
242 | result = 1; | |
243 | } | |
244 | else if (fct_guardsize != 32 * ps) | |
245 | { | |
246 | printf ("fct_guardsize %zd != %zd\n", fct_guardsize, 32 * ps); | |
247 | result = 1; | |
248 | } | |
249 | ||
250 | if (mq_notify (q, &ev) != 0) | |
251 | { | |
252 | printf ("third mq_notify (q, { SIGEV_NONE }) failed with: %m\n"); | |
253 | result = 1; | |
254 | } | |
255 | ||
256 | if (mq_notify (q, NULL) != 0) | |
257 | { | |
258 | printf ("mq_notify (q, NULL) failed with: %m\n"); | |
259 | result = 1; | |
260 | } | |
261 | ||
262 | if (pthread_attr_destroy (&nattr) != 0) | |
263 | { | |
264 | puts ("pthread_attr_destroy failed"); | |
265 | result = 1; | |
266 | } | |
267 | ||
268 | if (mq_unlink (name) != 0) | |
269 | { | |
270 | printf ("mq_unlink failed: %m\n"); | |
271 | result = 1; | |
272 | } | |
273 | ||
274 | if (mq_close (q) != 0) | |
275 | { | |
276 | printf ("mq_close failed: %m\n"); | |
277 | result = 1; | |
278 | } | |
279 | ||
280 | memset (&ev, 0x55, sizeof (ev)); | |
281 | ev.sigev_notify = SIGEV_THREAD; | |
282 | ev.sigev_notify_function = fct; | |
283 | ev.sigev_notify_attributes = NULL; | |
284 | ev.sigev_value.sival_int = 0; | |
285 | if (mq_notify (q, &ev) == 0) | |
286 | { | |
287 | puts ("mq_notify on closed mqd_t unexpectedly succeeded"); | |
288 | result = 1; | |
289 | } | |
290 | else if (errno != EBADF) | |
291 | { | |
292 | printf ("mq_notify on closed mqd_t did not fail with EBADF: %m\n"); | |
293 | result = 1; | |
294 | } | |
295 | ||
296 | if (fct_err) | |
297 | result = 1; | |
298 | return result; | |
299 | } | |
300 | #else | |
301 | # define TEST_FUNCTION 0 | |
302 | #endif | |
303 | ||
304 | #include "../test-skeleton.c" |