4fb6a315e38c3319d94666ab21eae6bac918ec28
[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 #define _GNU_SOURCE
20 #include <assert.h>
21 #include <errno.h>
22 #include <stdio.h>
23 #include <stdlib.h>
24 #include <string.h>
25 #include <unistd.h>
26 #include <time.h>
27
28 #include <lttng/lttng.h>
29 #include <bin/lttng-sessiond/lttng-ust-abi.h>
30 #include <common/defaults.h>
31 #include <bin/lttng-sessiond/trace-ust.h>
32 #include <bin/lttng-sessiond/ust-app.h>
33
34 #include <tap/tap.h>
35
36 /* This path will NEVER be created in this test */
37 #define PATH1 "/tmp/.test-junk-lttng"
38
39 #define RANDOM_STRING_LEN 11
40
41 /* Number of TAP tests in this file */
42 #define NUM_TESTS 11
43
44 /* For error.h */
45 int lttng_opt_quiet = 1;
46 int lttng_opt_verbose;
47 int lttng_opt_mi;
48
49 int ust_consumerd32_fd;
50 int ust_consumerd64_fd;
51
52 /* Global variable required by sessiond objects being linked-in */
53 struct lttng_ht *agent_apps_ht_by_sock;
54
55 static const char alphanum[] =
56 "0123456789"
57 "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
58 "abcdefghijklmnopqrstuvwxyz";
59 static char random_string[RANDOM_STRING_LEN];
60
61 static struct ltt_ust_session *usess;
62 static struct lttng_domain dom;
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 static void test_create_one_ust_session(void)
82 {
83 dom.type = LTTNG_DOMAIN_UST;
84
85 usess = trace_ust_create_session(42);
86 ok(usess != NULL, "Create UST session");
87
88 ok(usess->id == 42 &&
89 usess->active == 0 &&
90 usess->domain_global.channels != NULL &&
91 usess->uid == 0 &&
92 usess->gid == 0,
93 "Validate UST session");
94
95 trace_ust_destroy_session(usess);
96 }
97
98 static void test_create_ust_channel(void)
99 {
100 struct ltt_ust_channel *uchan;
101 struct lttng_channel attr;
102
103 memset(&attr, 0, sizeof(attr));
104
105 strncpy(attr.name, "channel0", 8);
106
107 uchan = trace_ust_create_channel(&attr);
108 ok(uchan != NULL, "Create UST channel");
109
110 ok(uchan->enabled == 0 &&
111 strncmp(uchan->name, "channel0", 8) == 0 &&
112 uchan->name[LTTNG_UST_SYM_NAME_LEN - 1] == '\0' &&
113 uchan->ctx != NULL &&
114 uchan->events != NULL &&
115 uchan->attr.overwrite == attr.attr.overwrite,
116 "Validate UST channel");
117
118 trace_ust_destroy_channel(uchan);
119 }
120
121 static void test_create_ust_event(void)
122 {
123 struct ltt_ust_event *event;
124 struct lttng_event ev;
125
126 memset(&ev, 0, sizeof(ev));
127 strncpy(ev.name, get_random_string(), LTTNG_SYMBOL_NAME_LEN);
128 ev.type = LTTNG_EVENT_TRACEPOINT;
129 ev.loglevel_type = LTTNG_EVENT_LOGLEVEL_ALL;
130
131 event = trace_ust_create_event(&ev, NULL, NULL, NULL, false);
132
133 ok(event != NULL, "Create UST event");
134
135 ok(event->enabled == 0 &&
136 event->attr.instrumentation == LTTNG_UST_TRACEPOINT &&
137 strcmp(event->attr.name, ev.name) == 0 &&
138 event->attr.name[LTTNG_UST_SYM_NAME_LEN - 1] == '\0',
139 "Validate UST event");
140
141 trace_ust_destroy_event(event);
142 }
143
144 static void test_create_ust_event_exclusion(void)
145 {
146 struct ltt_ust_event *event;
147 struct lttng_event ev;
148 char *name;
149 struct lttng_event_exclusion *exclusion;
150
151 memset(&ev, 0, sizeof(ev));
152
153 /* make a wildcarded event name */
154 name = get_random_string();
155 name[strlen(name) - 1] = '*';
156 strncpy(ev.name, name, LTTNG_SYMBOL_NAME_LEN);
157
158 ev.type = LTTNG_EVENT_TRACEPOINT;
159 ev.loglevel_type = LTTNG_EVENT_LOGLEVEL_ALL;
160
161 /* set up an exclusion set */
162 exclusion = zmalloc(sizeof(*exclusion) + LTTNG_SYMBOL_NAME_LEN);
163 if (!exclusion) {
164 PERROR("zmalloc");
165 }
166
167 ok(exclusion != NULL, "Create UST exclusion");
168
169 exclusion->count = 1;
170 strncpy((char *)(exclusion->names), get_random_string(), LTTNG_SYMBOL_NAME_LEN);
171
172 event = trace_ust_create_event(&ev, NULL, NULL, exclusion, false);
173
174 ok(event != NULL, "Create UST event with exclusion");
175
176 ok(event->enabled == 0 &&
177 event->attr.instrumentation == LTTNG_UST_TRACEPOINT &&
178 strcmp(event->attr.name, ev.name) == 0 &&
179 event->exclusion != NULL &&
180 event->exclusion->count == 1 &&
181 strcmp((char *)(event->exclusion->names), (char *)(exclusion->names)) == 0 &&
182 event->attr.name[LTTNG_UST_SYM_NAME_LEN - 1] == '\0',
183 "Validate UST event and exclusion");
184
185 trace_ust_destroy_event(event);
186 }
187
188
189 static void test_create_ust_context(void)
190 {
191 struct lttng_event_context ectx;
192 struct ltt_ust_context *uctx;
193
194 ectx.ctx = LTTNG_EVENT_CONTEXT_VTID;
195
196 uctx = trace_ust_create_context(&ectx);
197 ok(uctx != NULL, "Create UST context");
198
199 ok((int) uctx->ctx.ctx == LTTNG_UST_CONTEXT_VTID,
200 "Validate UST context");
201 free(uctx);
202 }
203
204 int main(int argc, char **argv)
205 {
206 plan_tests(NUM_TESTS);
207
208 diag("UST data structures unit test");
209
210 test_create_one_ust_session();
211 test_create_ust_channel();
212 test_create_ust_event();
213 test_create_ust_context();
214 test_create_ust_event_exclusion();
215
216 return exit_status();
217 }
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