Tests: Add runner script for tests
[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
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
10a8a223 28#include <bin/lttng-sessiond/trace-kernel.h>
990570ed 29#include <common/defaults.h>
10a8a223 30
23aaa19e 31#include <tap/tap.h>
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32
33/* This path will NEVER be created in this test */
34#define PATH1 "/tmp/.test-junk-lttng"
35
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36#define RANDOM_STRING_LEN 11
37
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38/* Number of TAP tests in this file */
39#define NUM_TESTS 10
40
897b8e23 41/* For lttngerr.h */
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42int lttng_opt_quiet = 1;
43int lttng_opt_verbose;
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44
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{
f9815039 72 kern = trace_kernel_create_session(PATH1);
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 /* Init list in order to avoid sefaults from cds_list_del */
3f43a221 84 trace_kernel_destroy_session(kern);
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85}
86
23aaa19e 87static void test_create_kernel_metadata(void)
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88{
89 assert(kern != NULL);
90
a4b92340 91 kern->metadata = trace_kernel_create_metadata();
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92 ok(kern->metadata != NULL, "Create kernel metadata");
93
94 ok(kern->metadata->fd == -1 &&
95 kern->metadata->conf != NULL &&
96 kern->metadata->conf->attr.overwrite
97 == DEFAULT_CHANNEL_OVERWRITE &&
98 kern->metadata->conf->attr.subbuf_size
99 == default_get_metadata_subbuf_size() &&
100 kern->metadata->conf->attr.num_subbuf
101 == DEFAULT_METADATA_SUBBUF_NUM &&
102 kern->metadata->conf->attr.switch_timer_interval
103 == DEFAULT_CHANNEL_SWITCH_TIMER &&
104 kern->metadata->conf->attr.read_timer_interval
105 == DEFAULT_CHANNEL_READ_TIMER &&
106 kern->metadata->conf->attr.output
107 == DEFAULT_KERNEL_CHANNEL_OUTPUT,
108 "Validate kernel session metadata");
897b8e23 109
3f43a221 110 trace_kernel_destroy_metadata(kern->metadata);
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111}
112
23aaa19e 113static void test_create_kernel_channel(void)
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114{
115 struct ltt_kernel_channel *chan;
116 struct lttng_channel attr;
117
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118 memset(&attr, 0, sizeof(attr));
119
fdd9eb17 120 chan = trace_kernel_create_channel(&attr);
23aaa19e 121 ok(chan != NULL, "Create kernel channel");
897b8e23 122
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123 ok(chan->fd == -1 &&
124 chan->enabled == 1 &&
125 chan->stream_count == 0 &&
126 chan->ctx == NULL &&
127 chan->channel->attr.overwrite == attr.attr.overwrite,
128 "Validate kernel channel");
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129
130 /* Init list in order to avoid sefaults from cds_list_del */
131 CDS_INIT_LIST_HEAD(&chan->list);
3f43a221 132 trace_kernel_destroy_channel(chan);
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133}
134
23aaa19e 135static void test_create_kernel_event(void)
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136{
137 struct ltt_kernel_event *event;
138 struct lttng_event ev;
139
441c16a7 140 memset(&ev, 0, sizeof(ev));
dbbb3ec5 141 strncpy(ev.name, get_random_string(), LTTNG_KERNEL_SYM_NAME_LEN);
897b8e23 142 ev.type = LTTNG_EVENT_TRACEPOINT;
441c16a7 143 ev.loglevel_type = LTTNG_EVENT_LOGLEVEL_ALL;
897b8e23 144
3f43a221 145 event = trace_kernel_create_event(&ev);
23aaa19e 146 ok(event != NULL, "Create kernel event");
897b8e23 147
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148 ok(event->fd == -1 &&
149 event->enabled == 1 &&
150 event->event->instrumentation == LTTNG_KERNEL_TRACEPOINT &&
151 strlen(event->event->name),
152 "Validate kernel event");
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153
154 /* Init list in order to avoid sefaults from cds_list_del */
155 CDS_INIT_LIST_HEAD(&event->list);
3f43a221 156 trace_kernel_destroy_event(event);
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157}
158
23aaa19e 159static void test_create_kernel_stream(void)
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160{
161 struct ltt_kernel_stream *stream;
162
00e2e675 163 stream = trace_kernel_create_stream("stream1", 0);
23aaa19e 164 ok(stream != NULL, "Create kernel stream");
897b8e23 165
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166 ok(stream->fd == -1 &&
167 stream->state == 0,
168 "Validate kernel stream");
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169
170 /* Init list in order to avoid sefaults from cds_list_del */
171 CDS_INIT_LIST_HEAD(&stream->list);
3f43a221 172 trace_kernel_destroy_stream(stream);
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173}
174
175int main(int argc, char **argv)
176{
23aaa19e 177 diag("Kernel data structure unit test");
897b8e23 178
23aaa19e 179 plan_tests(NUM_TESTS);
897b8e23 180
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181 test_create_one_kernel_session();
182 test_create_kernel_metadata();
183 test_create_kernel_channel();
184 test_create_kernel_event();
185 test_create_kernel_stream();
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186
187 /* Success */
188 return 0;
189}
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