Fix: split UST per UID/PID default values
[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 #include "utils.h"
37
38 /* This path will NEVER be created in this test */
39 #define PATH1 "/tmp/.test-junk-lttng"
40
41 #define RANDOM_STRING_LEN 11
42
43 /* Number of TAP tests in this file */
44 #define NUM_TESTS 10
45
46 /* For lttngerr.h */
47 int lttng_opt_quiet = 1;
48 int lttng_opt_verbose;
49
50 int ust_consumerd32_fd;
51 int ust_consumerd64_fd;
52
53 static const char alphanum[] =
54 "0123456789"
55 "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
56 "abcdefghijklmnopqrstuvwxyz";
57 static char random_string[RANDOM_STRING_LEN];
58
59 static struct ltt_ust_session *usess;
60 static struct lttng_domain dom;
61
62 /*
63 * Return random string of 10 characters.
64 * Not thread-safe.
65 */
66 static char *get_random_string(void)
67 {
68 int i;
69
70 for (i = 0; i < RANDOM_STRING_LEN - 1; i++) {
71 random_string[i] = alphanum[rand() % (sizeof(alphanum) - 1)];
72 }
73
74 random_string[RANDOM_STRING_LEN - 1] = '\0';
75
76 return random_string;
77 }
78
79 static void test_create_one_ust_session(void)
80 {
81 dom.type = LTTNG_DOMAIN_UST;
82
83 usess = trace_ust_create_session(42);
84 ok(usess != NULL, "Create UST session");
85
86 ok(usess->id == 42 &&
87 usess->start_trace == 0 &&
88 usess->domain_global.channels != NULL &&
89 usess->uid == 0 &&
90 usess->gid == 0,
91 "Validate UST session");
92
93 trace_ust_destroy_session(usess);
94 }
95
96 static void test_create_ust_metadata(void)
97 {
98 struct ltt_ust_metadata *metadata;
99
100 assert(usess != NULL);
101
102 metadata = trace_ust_create_metadata(PATH1);
103 ok(metadata != NULL, "Create UST metadata");
104
105 ok(metadata->handle == -1 &&
106 strlen(metadata->pathname) &&
107 metadata->attr.overwrite
108 == DEFAULT_CHANNEL_OVERWRITE &&
109 metadata->attr.subbuf_size
110 == default_get_metadata_subbuf_size() &&
111 metadata->attr.num_subbuf
112 == DEFAULT_METADATA_SUBBUF_NUM &&
113 metadata->attr.switch_timer_interval
114 == DEFAULT_METADATA_SWITCH_TIMER &&
115 metadata->attr.read_timer_interval
116 == DEFAULT_METADATA_READ_TIMER &&
117 metadata->attr.output == LTTNG_UST_MMAP,
118 "Validate UST session metadata");
119
120 trace_ust_destroy_metadata(metadata);
121 }
122
123 static void test_create_ust_channel(void)
124 {
125 struct ltt_ust_channel *uchan;
126 struct lttng_channel attr;
127
128 memset(&attr, 0, sizeof(attr));
129
130 strncpy(attr.name, "channel0", 8);
131
132 uchan = trace_ust_create_channel(&attr);
133 ok(uchan != NULL, "Create UST channel");
134
135 ok(uchan->enabled == 0 &&
136 strncmp(uchan->name, "channel0", 8) == 0 &&
137 uchan->name[LTTNG_UST_SYM_NAME_LEN - 1] == '\0' &&
138 uchan->ctx != NULL &&
139 uchan->events != NULL &&
140 uchan->attr.overwrite == attr.attr.overwrite,
141 "Validate UST channel");
142
143 trace_ust_destroy_channel(uchan);
144 }
145
146 static void test_create_ust_event(void)
147 {
148 struct ltt_ust_event *event;
149 struct lttng_event ev;
150
151 memset(&ev, 0, sizeof(ev));
152 strncpy(ev.name, get_random_string(), LTTNG_SYMBOL_NAME_LEN);
153 ev.type = LTTNG_EVENT_TRACEPOINT;
154 ev.loglevel_type = LTTNG_EVENT_LOGLEVEL_ALL;
155
156 event = trace_ust_create_event(&ev, NULL);
157
158 ok(event != NULL, "Create UST event");
159
160 ok(event->enabled == 0 &&
161 event->attr.instrumentation == LTTNG_UST_TRACEPOINT &&
162 strcmp(event->attr.name, ev.name) == 0 &&
163 event->attr.name[LTTNG_UST_SYM_NAME_LEN - 1] == '\0',
164 "Validate UST event");
165
166 trace_ust_destroy_event(event);
167 }
168
169 static void test_create_ust_context(void)
170 {
171 struct lttng_event_context ectx;
172 struct ltt_ust_context *uctx;
173
174 ectx.ctx = LTTNG_EVENT_CONTEXT_VTID;
175
176 uctx = trace_ust_create_context(&ectx);
177 ok(uctx != NULL, "Create UST context");
178
179 ok((int) uctx->ctx.ctx == LTTNG_UST_CONTEXT_VTID,
180 "Validate UST context");
181 }
182
183 int main(int argc, char **argv)
184 {
185 plan_tests(NUM_TESTS);
186
187 diag("UST data structures unit test");
188
189 test_create_one_ust_session();
190 test_create_ust_metadata();
191 test_create_ust_channel();
192 test_create_ust_event();
193 test_create_ust_context();
194
195 return exit_status();
196 }
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