tests: make functions static in test_session.c
[lttng-tools.git] / tests / unit / test_session.c
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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
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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>
6df2e2c9 26#include <sys/types.h>
8273250b 27#include <urcu.h>
63371d1e 28
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29#include <tap/tap.h>
30
10a8a223 31#include <bin/lttng-sessiond/session.h>
7972aab2 32#include <bin/lttng-sessiond/ust-app.h>
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33#include <bin/lttng-sessiond/ht-cleanup.h>
34#include <bin/lttng-sessiond/health-sessiond.h>
a3707772 35#include <bin/lttng-sessiond/thread.h>
10a8a223 36#include <common/sessiond-comm/sessiond-comm.h>
f73fabfd 37#include <common/common.h>
f6a9efaa 38
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39#define SESSION1 "test1"
40
63371d1e 41#define MAX_SESSIONS 10000
98612240 42#define RANDOM_STRING_LEN 11
63371d1e 43
83c55082 44/* Number of TAP tests in this file */
dec56f6c 45#define NUM_TESTS 11
63371d1e 46
5e97de00 47struct health_app *health_sessiond;
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48static struct ltt_session_list *session_list;
49
ad7c9c18 50/* For error.h */
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51int lttng_opt_quiet = 1;
52int lttng_opt_verbose = 0;
c7e35b03 53int lttng_opt_mi;
63371d1e 54
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55int ust_consumerd32_fd;
56int ust_consumerd64_fd;
57
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58static const char alphanum[] =
59 "0123456789"
60 "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
61 "abcdefghijklmnopqrstuvwxyz";
98612240 62static char random_string[RANDOM_STRING_LEN];
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63
64/*
65 * Return random string of 10 characters.
98612240 66 * Not thread-safe.
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67 */
68static char *get_random_string(void)
69{
70 int i;
63371d1e 71
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72 for (i = 0; i < RANDOM_STRING_LEN - 1; i++) {
73 random_string[i] = alphanum[rand() % (sizeof(alphanum) - 1)];
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74 }
75
98612240 76 random_string[RANDOM_STRING_LEN - 1] = '\0';
63371d1e 77
98612240 78 return random_string;
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79}
80
81/*
82 * Return 0 if session name is found, else -1
83 */
84static 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
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97static 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
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108/*
109 * Empty session list manually.
110 */
111static void empty_session_list(void)
112{
113 struct ltt_session *iter, *tmp;
114
e32d7f27 115 session_lock_list();
63371d1e 116 cds_list_for_each_entry_safe(iter, tmp, &session_list->head, list) {
23324029 117 session_destroy(iter);
63371d1e 118 }
e32d7f27 119 session_unlock_list();
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120
121 /* Session list must be 0 */
cc305a0b 122 assert(!session_list_count());
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123}
124
125/*
126 * Test creation of 1 session
127 */
dec56f6c 128static int create_one_session(char *name)
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129{
130 int ret;
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131 enum lttng_error_code ret_code;
132 struct ltt_session *session = NULL;
63371d1e 133
b178f53e 134 session_lock_list();
e3876bf0 135 ret_code = session_create(name, geteuid(), getegid(), &session);
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136 session_put(session);
137 if (ret_code == LTTNG_OK) {
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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");
b178f53e 143 ret = -1;
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144 } else {
145 /* Success */
b178f53e 146 ret = 0;
63371d1e 147 }
54d01ffb 148 } else {
b178f53e 149 if (ret_code == LTTNG_ERR_EXIST_SESS) {
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150 printf("(session already exists) ");
151 }
b178f53e 152 ret = -1;
63371d1e 153 }
3517bb68 154
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155 session_unlock_list();
156 return ret;
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157}
158
159/*
160 * Test deletion of 1 session
161 */
271933a4 162static int destroy_one_session(struct ltt_session *session)
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163{
164 int ret;
59891c42 165 char session_name[NAME_MAX];
63371d1e 166
4cd95b52 167 strncpy(session_name, session->name, sizeof(session_name));
59891c42 168 session_name[sizeof(session_name) - 1] = '\0';
54d01ffb 169
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170 session_destroy(session);
171 session_put(session);
63371d1e 172
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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;
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182}
183
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184/*
185 * This test is supposed to fail at the second create call. If so, return 0 for
186 * test success, else -1.
187 */
188static int two_session_same_name(void)
189{
190 int ret;
00e2e675 191 struct ltt_session *sess;
63371d1e 192
dec56f6c 193 ret = create_one_session(SESSION1);
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194 if (ret < 0) {
195 /* Fail */
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196 ret = -1;
197 goto end;
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198 }
199
e32d7f27 200 session_lock_list();
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201 sess = session_find_by_name(SESSION1);
202 if (sess) {
63371d1e 203 /* Success */
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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;
63371d1e 212 }
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213end_unlock:
214 session_unlock_list();
215end:
216 return ret;
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217}
218
c109c263 219static void test_session_list(void)
63371d1e 220{
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221 session_list = session_get_list();
222 ok(session_list != NULL, "Session list: not NULL");
223}
63371d1e 224
c109c263 225static void test_create_one_session(void)
83c55082 226{
dec56f6c 227 ok(create_one_session(SESSION1) == 0,
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228 "Create session: %s",
229 SESSION1);
230}
63371d1e 231
c109c263 232static void test_validate_session(void)
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233{
234 struct ltt_session *tmp;
63371d1e 235
e32d7f27 236 session_lock_list();
83c55082 237 tmp = session_find_by_name(SESSION1);
63371d1e 238
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239 ok(tmp != NULL,
240 "Validating session: session found");
241
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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 }
63371d1e 250
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251 session_lock(tmp);
252 session_unlock(tmp);
e32d7f27 253 session_put(tmp);
d61d06f0 254end:
e32d7f27 255 session_unlock_list();
83c55082 256}
63371d1e 257
c109c263 258static void test_destroy_session(void)
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259{
260 struct ltt_session *tmp;
63371d1e 261
e32d7f27 262 session_lock_list();
83c55082 263 tmp = session_find_by_name(SESSION1);
63371d1e 264
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265 ok(tmp != NULL,
266 "Destroying session: session found");
63371d1e 267
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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 }
e32d7f27 275 session_unlock_list();
83c55082 276}
63371d1e 277
c109c263 278static void test_duplicate_session(void)
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279{
280 ok(two_session_same_name() == 0,
281 "Duplicate session creation");
282}
283
c109c263 284static void test_session_name_generation(void)
83c55082 285{
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286 struct ltt_session *session = NULL;
287 enum lttng_error_code ret_code;
288 const char *expected_session_name_prefix = DEFAULT_SESSION_NAME;
83c55082 289
b178f53e 290 session_lock_list();
e3876bf0 291 ret_code = session_create(NULL, geteuid(), getegid(), &session);
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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);
304end:
305 session_put(session);
306 session_unlock_list();
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307}
308
c109c263 309static void test_large_session_number(void)
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310{
311 int ret, i, failed = 0;
312 struct ltt_session *iter, *tmp;
63371d1e 313
63371d1e 314 for (i = 0; i < MAX_SESSIONS; i++) {
e6dd5671 315 char *tmp_name = get_random_string();
dec56f6c 316 ret = create_one_session(tmp_name);
63371d1e 317 if (ret < 0) {
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318 diag("session %d (name: %s) creation failed", i, tmp_name);
319 ++failed;
db9b8b88 320 }
63371d1e 321 }
63371d1e 322
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323 ok(failed == 0,
324 "Large sessions number: created %u sessions",
325 MAX_SESSIONS);
326
327 failed = 0;
328
e32d7f27 329 session_lock_list();
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330 for (i = 0; i < MAX_SESSIONS; i++) {
331 cds_list_for_each_entry_safe(iter, tmp, &session_list->head, list) {
e32d7f27 332 assert(session_get(iter));
271933a4 333 ret = destroy_one_session(iter);
63371d1e 334 if (ret < 0) {
59891c42 335 diag("session %d destroy failed", i);
83c55082 336 ++failed;
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337 }
338 }
339 }
e32d7f27 340 session_unlock_list();
63371d1e 341
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342 ok(failed == 0 && session_list_count() == 0,
343 "Large sessions number: destroyed %u sessions",
344 MAX_SESSIONS);
345}
63371d1e 346
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347int main(int argc, char **argv)
348{
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349 struct lttng_thread *ht_cleanup_thread;
350
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351 plan_tests(NUM_TESTS);
352
5e97de00 353 health_sessiond = health_app_create(NR_HEALTH_SESSIOND_TYPES);
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354 ht_cleanup_thread = launch_ht_cleanup_thread();
355 assert(ht_cleanup_thread);
356 lttng_thread_put(ht_cleanup_thread);
5e97de00 357
e3bef725
CB
358 diag("Sessions unit tests");
359
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360 rcu_register_thread();
361
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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
b178f53e 374 test_session_name_generation();
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375
376 test_large_session_number();
377
8273250b 378 rcu_unregister_thread();
a3707772 379 lttng_thread_list_shutdown_orphans();
5e97de00 380
83c55082 381 return exit_status();
63371d1e 382}
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