Man: move [SESSION] before options
[lttng-tools.git] / tests / unit / test_kernel_data.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>
26
10a8a223 27#include <bin/lttng-sessiond/trace-kernel.h>
990570ed 28#include <common/defaults.h>
10a8a223 29
23aaa19e 30#include <tap/tap.h>
897b8e23 31
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32#define RANDOM_STRING_LEN 11
33
23aaa19e 34/* Number of TAP tests in this file */
1c0733db 35#define NUM_TESTS 11
23aaa19e 36
ad7c9c18 37/* For error.h */
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38int lttng_opt_quiet = 1;
39int lttng_opt_verbose;
c7e35b03 40int lttng_opt_mi;
897b8e23 41
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42int ust_consumerd32_fd;
43int ust_consumerd64_fd;
44
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45static const char alphanum[] =
46 "0123456789"
47 "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
48 "abcdefghijklmnopqrstuvwxyz";
49
50static struct ltt_kernel_session *kern;
98612240 51static char random_string[RANDOM_STRING_LEN];
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52
53/*
54 * Return random string of 10 characters.
98612240 55 * Not thread-safe.
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56 */
57static char *get_random_string(void)
58{
59 int i;
897b8e23 60
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61 for (i = 0; i < RANDOM_STRING_LEN - 1; i++) {
62 random_string[i] = alphanum[rand() % (sizeof(alphanum) - 1)];
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63 }
64
98612240 65 random_string[RANDOM_STRING_LEN - 1] = '\0';
897b8e23 66
98612240 67 return random_string;
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68}
69
23aaa19e 70static void test_create_one_kernel_session(void)
897b8e23 71{
dec56f6c 72 kern = trace_kernel_create_session();
23aaa19e 73 ok(kern != NULL, "Create kernel session");
897b8e23 74
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75 ok(kern->fd == -1 &&
76 kern->metadata_stream_fd == -1 &&
77 kern->consumer_fds_sent == 0 &&
78 kern->channel_count == 0 &&
79 kern->stream_count_global == 0 &&
80 kern->metadata == NULL,
81 "Validate kernel session");
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82}
83
23aaa19e 84static void test_create_kernel_metadata(void)
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85{
86 assert(kern != NULL);
87
a4b92340 88 kern->metadata = trace_kernel_create_metadata();
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89 ok(kern->metadata != NULL, "Create kernel metadata");
90
91 ok(kern->metadata->fd == -1 &&
92 kern->metadata->conf != NULL &&
93 kern->metadata->conf->attr.overwrite
94 == DEFAULT_CHANNEL_OVERWRITE &&
95 kern->metadata->conf->attr.subbuf_size
96 == default_get_metadata_subbuf_size() &&
97 kern->metadata->conf->attr.num_subbuf
98 == DEFAULT_METADATA_SUBBUF_NUM &&
99 kern->metadata->conf->attr.switch_timer_interval
5d2e1e66 100 == DEFAULT_KERNEL_CHANNEL_SWITCH_TIMER &&
23aaa19e 101 kern->metadata->conf->attr.read_timer_interval
5d2e1e66 102 == DEFAULT_KERNEL_CHANNEL_READ_TIMER &&
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103 kern->metadata->conf->attr.output
104 == DEFAULT_KERNEL_CHANNEL_OUTPUT,
105 "Validate kernel session metadata");
897b8e23 106
3f43a221 107 trace_kernel_destroy_metadata(kern->metadata);
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108}
109
23aaa19e 110static void test_create_kernel_channel(void)
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111{
112 struct ltt_kernel_channel *chan;
113 struct lttng_channel attr;
114
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115 memset(&attr, 0, sizeof(attr));
116
fdd9eb17 117 chan = trace_kernel_create_channel(&attr);
23aaa19e 118 ok(chan != NULL, "Create kernel channel");
897b8e23 119
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120 ok(chan->fd == -1 &&
121 chan->enabled == 1 &&
122 chan->stream_count == 0 &&
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123 chan->channel->attr.overwrite == attr.attr.overwrite,
124 "Validate kernel channel");
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125
126 /* Init list in order to avoid sefaults from cds_list_del */
127 CDS_INIT_LIST_HEAD(&chan->list);
3f43a221 128 trace_kernel_destroy_channel(chan);
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129}
130
23aaa19e 131static void test_create_kernel_event(void)
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132{
133 struct ltt_kernel_event *event;
134 struct lttng_event ev;
135
441c16a7 136 memset(&ev, 0, sizeof(ev));
72265d8a 137 ok(!lttng_strncpy(ev.name, get_random_string(),
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138 LTTNG_KERNEL_SYM_NAME_LEN),
139 "Validate string length");
897b8e23 140 ev.type = LTTNG_EVENT_TRACEPOINT;
441c16a7 141 ev.loglevel_type = LTTNG_EVENT_LOGLEVEL_ALL;
897b8e23 142
00a62084 143 event = trace_kernel_create_event(&ev, NULL, NULL);
23aaa19e 144 ok(event != NULL, "Create kernel event");
897b8e23 145
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146 ok(event->fd == -1 &&
147 event->enabled == 1 &&
148 event->event->instrumentation == LTTNG_KERNEL_TRACEPOINT &&
149 strlen(event->event->name),
150 "Validate kernel event");
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151
152 /* Init list in order to avoid sefaults from cds_list_del */
153 CDS_INIT_LIST_HEAD(&event->list);
3f43a221 154 trace_kernel_destroy_event(event);
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155}
156
23aaa19e 157static void test_create_kernel_stream(void)
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158{
159 struct ltt_kernel_stream *stream;
160
00e2e675 161 stream = trace_kernel_create_stream("stream1", 0);
23aaa19e 162 ok(stream != NULL, "Create kernel stream");
897b8e23 163
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164 ok(stream->fd == -1 &&
165 stream->state == 0,
166 "Validate kernel stream");
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167
168 /* Init list in order to avoid sefaults from cds_list_del */
169 CDS_INIT_LIST_HEAD(&stream->list);
3f43a221 170 trace_kernel_destroy_stream(stream);
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171}
172
173int main(int argc, char **argv)
174{
23aaa19e 175 plan_tests(NUM_TESTS);
897b8e23 176
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177 diag("Kernel data structure unit test");
178
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179 test_create_one_kernel_session();
180 test_create_kernel_metadata();
181 test_create_kernel_channel();
182 test_create_kernel_event();
183 test_create_kernel_stream();
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184
185 /* Success */
186 return 0;
187}
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