92f8771898b5167ffd47dc7cf32b52bc8e9a95bb
[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 10
43
44 /* For lttngerr.h */
45 int lttng_opt_quiet = 1;
46 int lttng_opt_verbose;
47
48 int ust_consumerd32_fd;
49 int ust_consumerd64_fd;
50
51 static const char alphanum[] =
52 "0123456789"
53 "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
54 "abcdefghijklmnopqrstuvwxyz";
55 static char random_string[RANDOM_STRING_LEN];
56
57 static struct ltt_ust_session *usess;
58 static struct lttng_domain dom;
59
60 /*
61 * Return random string of 10 characters.
62 * Not thread-safe.
63 */
64 static char *get_random_string(void)
65 {
66 int i;
67
68 for (i = 0; i < RANDOM_STRING_LEN - 1; i++) {
69 random_string[i] = alphanum[rand() % (sizeof(alphanum) - 1)];
70 }
71
72 random_string[RANDOM_STRING_LEN - 1] = '\0';
73
74 return random_string;
75 }
76
77 static void test_create_one_ust_session(void)
78 {
79 dom.type = LTTNG_DOMAIN_UST;
80
81 usess = trace_ust_create_session(42);
82 ok(usess != NULL, "Create UST session");
83
84 ok(usess->id == 42 &&
85 usess->start_trace == 0 &&
86 usess->domain_global.channels != NULL &&
87 usess->uid == 0 &&
88 usess->gid == 0,
89 "Validate UST session");
90
91 trace_ust_destroy_session(usess);
92 }
93
94 static void test_create_ust_channel(void)
95 {
96 struct ltt_ust_channel *uchan;
97 struct lttng_channel attr;
98
99 memset(&attr, 0, sizeof(attr));
100
101 strncpy(attr.name, "channel0", 8);
102
103 uchan = trace_ust_create_channel(&attr);
104 ok(uchan != NULL, "Create UST channel");
105
106 ok(uchan->enabled == 0 &&
107 strncmp(uchan->name, "channel0", 8) == 0 &&
108 uchan->name[LTTNG_UST_SYM_NAME_LEN - 1] == '\0' &&
109 uchan->ctx != NULL &&
110 uchan->events != NULL &&
111 uchan->attr.overwrite == attr.attr.overwrite,
112 "Validate UST channel");
113
114 trace_ust_destroy_channel(uchan);
115 }
116
117 static void test_create_ust_event(void)
118 {
119 struct ltt_ust_event *event;
120 struct lttng_event ev;
121
122 memset(&ev, 0, sizeof(ev));
123 strncpy(ev.name, get_random_string(), LTTNG_SYMBOL_NAME_LEN);
124 ev.type = LTTNG_EVENT_TRACEPOINT;
125 ev.loglevel_type = LTTNG_EVENT_LOGLEVEL_ALL;
126
127 event = trace_ust_create_event(&ev, NULL, NULL);
128
129 ok(event != NULL, "Create UST event");
130
131 ok(event->enabled == 0 &&
132 event->attr.instrumentation == LTTNG_UST_TRACEPOINT &&
133 strcmp(event->attr.name, ev.name) == 0 &&
134 event->attr.name[LTTNG_UST_SYM_NAME_LEN - 1] == '\0',
135 "Validate UST event");
136
137 trace_ust_destroy_event(event);
138 }
139
140 static void test_create_ust_event_exclusion(void)
141 {
142 struct ltt_ust_event *event;
143 struct lttng_event ev;
144 char *name;
145 struct lttng_event_exclusion *exclusion;
146
147 memset(&ev, 0, sizeof(ev));
148
149 /* make a wildcarded event name */
150 name = get_random_string();
151 name[strlen(name) - 1] = '*';
152 strncpy(ev.name, name, LTTNG_SYMBOL_NAME_LEN);
153
154 ev.type = LTTNG_EVENT_TRACEPOINT;
155 ev.loglevel_type = LTTNG_EVENT_LOGLEVEL_ALL;
156
157 /* set up an exclusion set */
158 exclusion = zmalloc(sizeof(*exclusion) + LTTNG_SYMBOL_NAME_LEN);
159 exclusion->count = 1;
160 strncpy((char *)(exclusion->names), get_random_string(), LTTNG_SYMBOL_NAME_LEN);
161
162 event = trace_ust_create_event(&ev, NULL, exclusion);
163
164 ok(event != NULL, "Create UST event with exclusion");
165
166 ok(event->enabled == 0 &&
167 event->attr.instrumentation == LTTNG_UST_TRACEPOINT &&
168 strcmp(event->attr.name, ev.name) == 0 &&
169 event->exclusion != NULL &&
170 event->exclusion->count == 1 &&
171 strcmp((char *)(event->exclusion->names), (char *)(exclusion->names)) == 0 &&
172 event->attr.name[LTTNG_UST_SYM_NAME_LEN - 1] == '\0',
173 "Validate UST event and exclusion");
174
175 trace_ust_destroy_event(event);
176 }
177
178
179 static void test_create_ust_context(void)
180 {
181 struct lttng_event_context ectx;
182 struct ltt_ust_context *uctx;
183
184 ectx.ctx = LTTNG_EVENT_CONTEXT_VTID;
185
186 uctx = trace_ust_create_context(&ectx);
187 ok(uctx != NULL, "Create UST context");
188
189 ok((int) uctx->ctx.ctx == LTTNG_UST_CONTEXT_VTID,
190 "Validate UST context");
191 free(uctx);
192 }
193
194 int main(int argc, char **argv)
195 {
196 plan_tests(NUM_TESTS);
197
198 diag("UST data structures unit test");
199
200 test_create_one_ust_session();
201 test_create_ust_channel();
202 test_create_ust_event();
203 test_create_ust_context();
204 test_create_ust_event_exclusion();
205
206 return exit_status();
207 }
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