cf795cfa0759631867ecf1e22872fa420366a0b2
[lttng-tools.git] / tests / unit / test_ust_data.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
27 #include <lttng/lttng.h>
28 #include <bin/lttng-sessiond/lttng-ust-abi.h>
29 #include <common/defaults.h>
30 #include <bin/lttng-sessiond/trace-ust.h>
31 #include <bin/lttng-sessiond/ust-app.h>
32
33 #include <tap/tap.h>
34
35 /* This path will NEVER be created in this test */
36 #define PATH1 "/tmp/.test-junk-lttng"
37
38 #define RANDOM_STRING_LEN 11
39
40 /* Number of TAP tests in this file */
41 #define NUM_TESTS 16
42
43 /* For error.h */
44 int lttng_opt_quiet = 1;
45 int lttng_opt_verbose;
46 int lttng_opt_mi;
47
48 int ust_consumerd32_fd;
49 int ust_consumerd64_fd;
50
51 /* Global variable required by sessiond objects being linked-in */
52 struct lttng_ht *agent_apps_ht_by_sock;
53
54 static const char alphanum[] =
55 "0123456789"
56 "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
57 "abcdefghijklmnopqrstuvwxyz";
58 static char random_string[RANDOM_STRING_LEN];
59
60 static struct ltt_ust_session *usess;
61 static struct lttng_domain dom;
62
63 /*
64 * Return random string of 10 characters.
65 * Not thread-safe.
66 */
67 static char *get_random_string(void)
68 {
69 int i;
70
71 for (i = 0; i < RANDOM_STRING_LEN - 1; i++) {
72 random_string[i] = alphanum[rand() % (sizeof(alphanum) - 1)];
73 }
74
75 random_string[RANDOM_STRING_LEN - 1] = '\0';
76
77 return random_string;
78 }
79
80 static void test_create_one_ust_session(void)
81 {
82 dom.type = LTTNG_DOMAIN_UST;
83
84 usess = trace_ust_create_session(42);
85 ok(usess != NULL, "Create UST session");
86
87 if (!usess) {
88 skip(1, "UST session is null");
89 return;
90 }
91
92 ok(usess->id == 42 &&
93 usess->active == 0 &&
94 usess->domain_global.channels != NULL &&
95 usess->uid == 0 &&
96 usess->gid == 0,
97 "Validate UST session");
98
99 trace_ust_destroy_session(usess);
100 }
101
102 static void test_create_ust_channel(void)
103 {
104 struct ltt_ust_channel *uchan;
105 struct lttng_channel attr;
106
107 memset(&attr, 0, sizeof(attr));
108
109 ok(lttng_strncpy(attr.name, "channel0", sizeof(attr.name)) == 0,
110 "Validate channel name length");
111 uchan = trace_ust_create_channel(&attr, LTTNG_DOMAIN_UST);
112 ok(uchan != NULL, "Create UST channel");
113
114 if (!usess) {
115 skip(1, "UST session is null");
116 return;
117 }
118
119 ok(uchan->enabled == 0 &&
120 strncmp(uchan->name, "channel0", 8) == 0 &&
121 uchan->name[LTTNG_UST_SYM_NAME_LEN - 1] == '\0' &&
122 uchan->ctx != NULL &&
123 uchan->events != NULL &&
124 uchan->attr.overwrite == attr.attr.overwrite,
125 "Validate UST channel");
126
127 trace_ust_destroy_channel(uchan);
128 }
129
130 static void test_create_ust_event(void)
131 {
132 struct ltt_ust_event *event;
133 struct lttng_event ev;
134
135 memset(&ev, 0, sizeof(ev));
136 ok(lttng_strncpy(ev.name, get_random_string(),
137 LTTNG_SYMBOL_NAME_LEN) == 0,
138 "Validate string length");
139 ev.type = LTTNG_EVENT_TRACEPOINT;
140 ev.loglevel_type = LTTNG_EVENT_LOGLEVEL_ALL;
141
142 event = trace_ust_create_event(&ev, NULL, NULL, NULL, false);
143
144 ok(event != NULL, "Create UST event");
145
146 if (!event) {
147 skip(1, "UST event is null");
148 return;
149 }
150
151 ok(event->enabled == 0 &&
152 event->attr.instrumentation == LTTNG_UST_TRACEPOINT &&
153 strcmp(event->attr.name, ev.name) == 0 &&
154 event->attr.name[LTTNG_UST_SYM_NAME_LEN - 1] == '\0',
155 "Validate UST event");
156
157 trace_ust_destroy_event(event);
158 }
159
160 static void test_create_ust_event_exclusion(void)
161 {
162 struct ltt_ust_event *event;
163 struct lttng_event ev;
164 char *name;
165 char *random_name;
166 struct lttng_event_exclusion *exclusion;
167 const int exclusion_count = 2;
168
169 memset(&ev, 0, sizeof(ev));
170
171 /* make a wildcarded event name */
172 name = get_random_string();
173 name[strlen(name) - 1] = '*';
174 ok(lttng_strncpy(ev.name, name, LTTNG_SYMBOL_NAME_LEN) == 0,
175 "Validate string length");
176
177 ev.type = LTTNG_EVENT_TRACEPOINT;
178 ev.loglevel_type = LTTNG_EVENT_LOGLEVEL_ALL;
179
180 /* set up an exclusion set */
181 exclusion = zmalloc(sizeof(*exclusion) +
182 LTTNG_SYMBOL_NAME_LEN * exclusion_count);
183 ok(exclusion != NULL, "Create UST exclusion");
184 if (!exclusion) {
185 skip(4, "zmalloc failed");
186 goto end;
187 }
188
189 exclusion->count = exclusion_count;
190 random_name = get_random_string();
191 strncpy(LTTNG_EVENT_EXCLUSION_NAME_AT(exclusion, 0), random_name,
192 LTTNG_SYMBOL_NAME_LEN);
193 strncpy(LTTNG_EVENT_EXCLUSION_NAME_AT(exclusion, 1), random_name,
194 LTTNG_SYMBOL_NAME_LEN);
195
196 event = trace_ust_create_event(&ev, NULL, NULL, exclusion, false);
197 exclusion = NULL;
198
199 ok(!event, "Create UST event with identical exclusion names fails");
200
201 exclusion = zmalloc(sizeof(*exclusion) +
202 LTTNG_SYMBOL_NAME_LEN * exclusion_count);
203 ok(exclusion != NULL, "Create UST exclusion");
204 if (!exclusion) {
205 skip(2, "zmalloc failed");
206 goto end;
207 }
208
209 exclusion->count = exclusion_count;
210 strncpy(LTTNG_EVENT_EXCLUSION_NAME_AT(exclusion, 0),
211 get_random_string(), LTTNG_SYMBOL_NAME_LEN);
212 strncpy(LTTNG_EVENT_EXCLUSION_NAME_AT(exclusion, 1),
213 get_random_string(), LTTNG_SYMBOL_NAME_LEN);
214
215 event = trace_ust_create_event(&ev, NULL, NULL, exclusion, false);
216 ok(event != NULL, "Create UST event with different exclusion names");
217
218 if (!event) {
219 skip(1, "UST event with exclusion is null");
220 goto end;
221 }
222
223 ok(event->enabled == 0 &&
224 event->attr.instrumentation == LTTNG_UST_TRACEPOINT &&
225 strcmp(event->attr.name, ev.name) == 0 &&
226 event->exclusion != NULL &&
227 event->exclusion->count == exclusion_count &&
228 !memcmp(event->exclusion->names, exclusion->names,
229 LTTNG_SYMBOL_NAME_LEN * exclusion_count) &&
230 event->attr.name[LTTNG_UST_SYM_NAME_LEN - 1] == '\0',
231 "Validate UST event and exclusion");
232
233 trace_ust_destroy_event(event);
234 end:
235 return;
236 }
237
238
239 static void test_create_ust_context(void)
240 {
241 struct lttng_event_context ectx;
242 struct ltt_ust_context *uctx;
243
244 ectx.ctx = LTTNG_EVENT_CONTEXT_VTID;
245
246 uctx = trace_ust_create_context(&ectx);
247 ok(uctx != NULL, "Create UST context");
248
249 ok((int) uctx->ctx.ctx == LTTNG_UST_CONTEXT_VTID,
250 "Validate UST context");
251 free(uctx);
252 }
253
254 int main(int argc, char **argv)
255 {
256 plan_tests(NUM_TESTS);
257
258 diag("UST data structures unit test");
259
260 test_create_one_ust_session();
261 test_create_ust_channel();
262 test_create_ust_event();
263 test_create_ust_context();
264 test_create_ust_event_exclusion();
265
266 return exit_status();
267 }
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