tests: make functions static in test_session.c
[lttng-tools.git] / tests / unit / test_session.c
1 /*
2 * Copyright (c) 2011 David Goulet <david.goulet@polymtl.ca>
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * as published by the Free Software Foundation; only version 2
7 * of the License.
8 *
9 * This program 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
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License along
15 * with this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
17 */
18
19 #include <assert.h>
20 #include <errno.h>
21 #include <stdio.h>
22 #include <stdlib.h>
23 #include <string.h>
24 #include <unistd.h>
25 #include <time.h>
26 #include <sys/types.h>
27 #include <urcu.h>
28
29 #include <tap/tap.h>
30
31 #include <bin/lttng-sessiond/session.h>
32 #include <bin/lttng-sessiond/ust-app.h>
33 #include <bin/lttng-sessiond/ht-cleanup.h>
34 #include <bin/lttng-sessiond/health-sessiond.h>
35 #include <bin/lttng-sessiond/thread.h>
36 #include <common/sessiond-comm/sessiond-comm.h>
37 #include <common/common.h>
38
39 #define SESSION1 "test1"
40
41 #define MAX_SESSIONS 10000
42 #define RANDOM_STRING_LEN 11
43
44 /* Number of TAP tests in this file */
45 #define NUM_TESTS 11
46
47 struct health_app *health_sessiond;
48 static struct ltt_session_list *session_list;
49
50 /* For error.h */
51 int lttng_opt_quiet = 1;
52 int lttng_opt_verbose = 0;
53 int lttng_opt_mi;
54
55 int ust_consumerd32_fd;
56 int ust_consumerd64_fd;
57
58 static const char alphanum[] =
59 "0123456789"
60 "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
61 "abcdefghijklmnopqrstuvwxyz";
62 static char random_string[RANDOM_STRING_LEN];
63
64 /*
65 * Return random string of 10 characters.
66 * Not thread-safe.
67 */
68 static char *get_random_string(void)
69 {
70 int i;
71
72 for (i = 0; i < RANDOM_STRING_LEN - 1; i++) {
73 random_string[i] = alphanum[rand() % (sizeof(alphanum) - 1)];
74 }
75
76 random_string[RANDOM_STRING_LEN - 1] = '\0';
77
78 return random_string;
79 }
80
81 /*
82 * Return 0 if session name is found, else -1
83 */
84 static int find_session_name(char *name)
85 {
86 struct ltt_session *iter;
87
88 cds_list_for_each_entry(iter, &session_list->head, list) {
89 if (strcmp(iter->name, name) == 0) {
90 return 0;
91 }
92 }
93
94 return -1;
95 }
96
97 static int session_list_count(void)
98 {
99 int count = 0;
100 struct ltt_session *iter;
101
102 cds_list_for_each_entry(iter, &session_list->head, list) {
103 count++;
104 }
105 return count;
106 }
107
108 /*
109 * Empty session list manually.
110 */
111 static void empty_session_list(void)
112 {
113 struct ltt_session *iter, *tmp;
114
115 session_lock_list();
116 cds_list_for_each_entry_safe(iter, tmp, &session_list->head, list) {
117 session_destroy(iter);
118 }
119 session_unlock_list();
120
121 /* Session list must be 0 */
122 assert(!session_list_count());
123 }
124
125 /*
126 * Test creation of 1 session
127 */
128 static int create_one_session(char *name)
129 {
130 int ret;
131 enum lttng_error_code ret_code;
132 struct ltt_session *session = NULL;
133
134 session_lock_list();
135 ret_code = session_create(name, geteuid(), getegid(), &session);
136 session_put(session);
137 if (ret_code == LTTNG_OK) {
138 /* Validate */
139 ret = find_session_name(name);
140 if (ret < 0) {
141 /* Session not found by name */
142 printf("session not found after creation\n");
143 ret = -1;
144 } else {
145 /* Success */
146 ret = 0;
147 }
148 } else {
149 if (ret_code == LTTNG_ERR_EXIST_SESS) {
150 printf("(session already exists) ");
151 }
152 ret = -1;
153 }
154
155 session_unlock_list();
156 return ret;
157 }
158
159 /*
160 * Test deletion of 1 session
161 */
162 static int destroy_one_session(struct ltt_session *session)
163 {
164 int ret;
165 char session_name[NAME_MAX];
166
167 strncpy(session_name, session->name, sizeof(session_name));
168 session_name[sizeof(session_name) - 1] = '\0';
169
170 session_destroy(session);
171 session_put(session);
172
173 ret = find_session_name(session_name);
174 if (ret < 0) {
175 /* Success, -1 means that the sesion is NOT found */
176 ret = 0;
177 } else {
178 /* Fail */
179 ret = -1;
180 }
181 return ret;
182 }
183
184 /*
185 * This test is supposed to fail at the second create call. If so, return 0 for
186 * test success, else -1.
187 */
188 static int two_session_same_name(void)
189 {
190 int ret;
191 struct ltt_session *sess;
192
193 ret = create_one_session(SESSION1);
194 if (ret < 0) {
195 /* Fail */
196 ret = -1;
197 goto end;
198 }
199
200 session_lock_list();
201 sess = session_find_by_name(SESSION1);
202 if (sess) {
203 /* Success */
204 session_put(sess);
205 session_unlock_list();
206 ret = 0;
207 goto end_unlock;
208 } else {
209 /* Fail */
210 ret = -1;
211 goto end_unlock;
212 }
213 end_unlock:
214 session_unlock_list();
215 end:
216 return ret;
217 }
218
219 static void test_session_list(void)
220 {
221 session_list = session_get_list();
222 ok(session_list != NULL, "Session list: not NULL");
223 }
224
225 static void test_create_one_session(void)
226 {
227 ok(create_one_session(SESSION1) == 0,
228 "Create session: %s",
229 SESSION1);
230 }
231
232 static void test_validate_session(void)
233 {
234 struct ltt_session *tmp;
235
236 session_lock_list();
237 tmp = session_find_by_name(SESSION1);
238
239 ok(tmp != NULL,
240 "Validating session: session found");
241
242 if (tmp) {
243 ok(tmp->kernel_session == NULL &&
244 strlen(tmp->name),
245 "Validating session: basic sanity check");
246 } else {
247 skip(1, "Skipping session validation check as session was not found");
248 goto end;
249 }
250
251 session_lock(tmp);
252 session_unlock(tmp);
253 session_put(tmp);
254 end:
255 session_unlock_list();
256 }
257
258 static void test_destroy_session(void)
259 {
260 struct ltt_session *tmp;
261
262 session_lock_list();
263 tmp = session_find_by_name(SESSION1);
264
265 ok(tmp != NULL,
266 "Destroying session: session found");
267
268 if (tmp) {
269 ok(destroy_one_session(tmp) == 0,
270 "Destroying session: %s destroyed",
271 SESSION1);
272 } else {
273 skip(1, "Skipping session destruction as it was not found");
274 }
275 session_unlock_list();
276 }
277
278 static void test_duplicate_session(void)
279 {
280 ok(two_session_same_name() == 0,
281 "Duplicate session creation");
282 }
283
284 static void test_session_name_generation(void)
285 {
286 struct ltt_session *session = NULL;
287 enum lttng_error_code ret_code;
288 const char *expected_session_name_prefix = DEFAULT_SESSION_NAME;
289
290 session_lock_list();
291 ret_code = session_create(NULL, geteuid(), getegid(), &session);
292 ok(ret_code == LTTNG_OK,
293 "Create session with a NULL name (auto-generate a name)");
294 if (!session) {
295 skip(1, "Skipping session name generation tests as session_create() failed.");
296 goto end;
297 }
298 diag("Automatically-generated session name: %s", *session->name ?
299 session->name : "ERROR");
300 ok(*session->name && !strncmp(expected_session_name_prefix, session->name,
301 sizeof(DEFAULT_SESSION_NAME) - 1),
302 "Auto-generated session name starts with %s",
303 DEFAULT_SESSION_NAME);
304 end:
305 session_put(session);
306 session_unlock_list();
307 }
308
309 static void test_large_session_number(void)
310 {
311 int ret, i, failed = 0;
312 struct ltt_session *iter, *tmp;
313
314 for (i = 0; i < MAX_SESSIONS; i++) {
315 char *tmp_name = get_random_string();
316 ret = create_one_session(tmp_name);
317 if (ret < 0) {
318 diag("session %d (name: %s) creation failed", i, tmp_name);
319 ++failed;
320 }
321 }
322
323 ok(failed == 0,
324 "Large sessions number: created %u sessions",
325 MAX_SESSIONS);
326
327 failed = 0;
328
329 session_lock_list();
330 for (i = 0; i < MAX_SESSIONS; i++) {
331 cds_list_for_each_entry_safe(iter, tmp, &session_list->head, list) {
332 assert(session_get(iter));
333 ret = destroy_one_session(iter);
334 if (ret < 0) {
335 diag("session %d destroy failed", i);
336 ++failed;
337 }
338 }
339 }
340 session_unlock_list();
341
342 ok(failed == 0 && session_list_count() == 0,
343 "Large sessions number: destroyed %u sessions",
344 MAX_SESSIONS);
345 }
346
347 int main(int argc, char **argv)
348 {
349 struct lttng_thread *ht_cleanup_thread;
350
351 plan_tests(NUM_TESTS);
352
353 health_sessiond = health_app_create(NR_HEALTH_SESSIOND_TYPES);
354 ht_cleanup_thread = launch_ht_cleanup_thread();
355 assert(ht_cleanup_thread);
356 lttng_thread_put(ht_cleanup_thread);
357
358 diag("Sessions unit tests");
359
360 rcu_register_thread();
361
362 test_session_list();
363
364 test_create_one_session();
365
366 test_validate_session();
367
368 test_destroy_session();
369
370 test_duplicate_session();
371
372 empty_session_list();
373
374 test_session_name_generation();
375
376 test_large_session_number();
377
378 rcu_unregister_thread();
379 lttng_thread_list_shutdown_orphans();
380
381 return exit_status();
382 }
This page took 0.055397 seconds and 4 git commands to generate.