1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
|
/*
Unix SMB/CIFS implementation.
testing of the events subsystem
Copyright (C) Stefan Metzmacher 2006-2009
** NOTE! The following LGPL license applies to the tevent
** library. This does NOT imply that all of Samba is released
** under the LGPL
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 3 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
#include "lib/tevent/tevent.h"
#include "system/filesys.h"
#include "system/select.h"
#include "torture/torture.h"
#ifdef HAVE_PTHREAD
#include <pthread.h>
#include <assert.h>
#endif
static int fde_count;
static void fde_handler(struct tevent_context *ev_ctx, struct tevent_fd *f,
uint16_t flags, void *private_data)
{
int *fd = (int *)private_data;
char c;
#ifdef SA_SIGINFO
kill(getpid(), SIGUSR1);
#endif
kill(getpid(), SIGALRM);
read(fd[0], &c, 1);
write(fd[1], &c, 1);
fde_count++;
}
static void finished_handler(struct tevent_context *ev_ctx, struct tevent_timer *te,
struct timeval tval, void *private_data)
{
int *finished = (int *)private_data;
(*finished) = 1;
}
static void count_handler(struct tevent_context *ev_ctx, struct tevent_signal *te,
int signum, int count, void *info, void *private_data)
{
int *countp = (int *)private_data;
(*countp) += count;
}
static bool test_event_context(struct torture_context *test,
const void *test_data)
{
struct tevent_context *ev_ctx;
int fd[2] = { -1, -1 };
const char *backend = (const char *)test_data;
int alarm_count=0, info_count=0;
struct tevent_fd *fde;
#ifdef SA_RESTART
struct tevent_signal *se1 = NULL;
#endif
#ifdef SA_RESETHAND
struct tevent_signal *se2 = NULL;
#endif
#ifdef SA_SIGINFO
struct tevent_signal *se3 = NULL;
#endif
int finished=0;
struct timeval t;
char c = 0;
ev_ctx = tevent_context_init_byname(test, backend);
if (ev_ctx == NULL) {
torture_comment(test, "event backend '%s' not supported\n", backend);
return true;
}
torture_comment(test, "backend '%s' - %s\n",
backend, __FUNCTION__);
/* reset globals */
fde_count = 0;
/* create a pipe */
pipe(fd);
fde = tevent_add_fd(ev_ctx, ev_ctx, fd[0], TEVENT_FD_READ,
fde_handler, fd);
tevent_fd_set_auto_close(fde);
tevent_add_timer(ev_ctx, ev_ctx, timeval_current_ofs(2,0),
finished_handler, &finished);
#ifdef SA_RESTART
se1 = tevent_add_signal(ev_ctx, ev_ctx, SIGALRM, SA_RESTART, count_handler, &alarm_count);
torture_assert(test, se1 != NULL, "failed to setup se1");
#endif
#ifdef SA_RESETHAND
se2 = tevent_add_signal(ev_ctx, ev_ctx, SIGALRM, SA_RESETHAND, count_handler, &alarm_count);
torture_assert(test, se2 != NULL, "failed to setup se2");
#endif
#ifdef SA_SIGINFO
se3 = tevent_add_signal(ev_ctx, ev_ctx, SIGUSR1, SA_SIGINFO, count_handler, &info_count);
torture_assert(test, se3 != NULL, "failed to setup se3");
#endif
write(fd[1], &c, 1);
t = timeval_current();
while (!finished) {
errno = 0;
if (tevent_loop_once(ev_ctx) == -1) {
talloc_free(ev_ctx);
torture_fail(test, talloc_asprintf(test, "Failed event loop %s\n", strerror(errno)));
}
}
talloc_free(fde);
close(fd[1]);
while (alarm_count < fde_count+1) {
if (tevent_loop_once(ev_ctx) == -1) {
break;
}
}
torture_comment(test, "Got %.2f pipe events/sec\n", fde_count/timeval_elapsed(&t));
#ifdef SA_RESTART
talloc_free(se1);
#endif
torture_assert_int_equal(test, alarm_count, 1+fde_count, "alarm count mismatch");
#ifdef SA_RESETHAND
/*
* we do not call talloc_free(se2)
* because it is already gone,
* after triggering the event handler.
*/
#endif
#ifdef SA_SIGINFO
talloc_free(se3);
torture_assert_int_equal(test, info_count, fde_count, "info count mismatch");
#endif
talloc_free(ev_ctx);
return true;
}
#ifdef HAVE_PTHREAD
static pthread_mutex_t threaded_mutex = PTHREAD_MUTEX_INITIALIZER;
static bool do_shutdown = false;
static void test_event_threaded_lock(void)
{
int ret;
ret = pthread_mutex_lock(&threaded_mutex);
assert(ret == 0);
}
static void test_event_threaded_unlock(void)
{
int ret;
ret = pthread_mutex_unlock(&threaded_mutex);
assert(ret == 0);
}
static void test_event_threaded_trace(enum tevent_trace_point point,
void *private_data)
{
switch (point) {
case TEVENT_TRACE_BEFORE_WAIT:
test_event_threaded_unlock();
break;
case TEVENT_TRACE_AFTER_WAIT:
test_event_threaded_lock();
break;
case TEVENT_TRACE_BEFORE_LOOP_ONCE:
case TEVENT_TRACE_AFTER_LOOP_ONCE:
break;
}
}
static void test_event_threaded_timer(struct tevent_context *ev,
struct tevent_timer *te,
struct timeval current_time,
void *private_data)
{
return;
}
static void *test_event_poll_thread(void *private_data)
{
struct tevent_context *ev = (struct tevent_context *)private_data;
test_event_threaded_lock();
while (true) {
int ret;
ret = tevent_loop_once(ev);
assert(ret == 0);
if (do_shutdown) {
test_event_threaded_unlock();
return NULL;
}
}
}
static void test_event_threaded_read_handler(struct tevent_context *ev,
struct tevent_fd *fde,
uint16_t flags,
void *private_data)
{
int *pfd = (int *)private_data;
char c;
ssize_t nread;
if ((flags & TEVENT_FD_READ) == 0) {
return;
}
do {
nread = read(*pfd, &c, 1);
} while ((nread == -1) && (errno == EINTR));
assert(nread == 1);
}
static bool test_event_context_threaded(struct torture_context *test,
const void *test_data)
{
struct tevent_context *ev;
struct tevent_timer *te;
struct tevent_fd *fde;
pthread_t poll_thread;
int fds[2];
int ret;
char c = 0;
ev = tevent_context_init_byname(test, "poll_mt");
torture_assert(test, ev != NULL, "poll_mt not supported");
tevent_set_trace_callback(ev, test_event_threaded_trace, NULL);
te = tevent_add_timer(ev, ev, timeval_current_ofs(5, 0),
test_event_threaded_timer, NULL);
torture_assert(test, te != NULL, "Could not add timer");
ret = pthread_create(&poll_thread, NULL, test_event_poll_thread, ev);
torture_assert(test, ret == 0, "Could not create poll thread");
ret = pipe(fds);
torture_assert(test, ret == 0, "Could not create pipe");
poll(NULL, 0, 100);
test_event_threaded_lock();
fde = tevent_add_fd(ev, ev, fds[0], TEVENT_FD_READ,
test_event_threaded_read_handler, &fds[0]);
torture_assert(test, fde != NULL, "Could not add fd event");
test_event_threaded_unlock();
poll(NULL, 0, 100);
write(fds[1], &c, 1);
poll(NULL, 0, 100);
test_event_threaded_lock();
do_shutdown = true;
test_event_threaded_unlock();
write(fds[1], &c, 1);
ret = pthread_join(poll_thread, NULL);
torture_assert(test, ret == 0, "pthread_join failed");
return true;
}
#endif
struct torture_suite *torture_local_event(TALLOC_CTX *mem_ctx)
{
struct torture_suite *suite = torture_suite_create(mem_ctx, "event");
const char **list = tevent_backend_list(suite);
int i;
for (i=0;list && list[i];i++) {
torture_suite_add_simple_tcase_const(suite, list[i],
test_event_context,
(const void *)list[i]);
}
#ifdef HAVE_PTHREAD
torture_suite_add_simple_tcase_const(suite, "poll_mt_threaded",
test_event_context_threaded,
NULL);
#endif
return suite;
}
|