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897b8e23 DG |
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 | |
897b8e23 DG |
31 | #include "utils.h" |
32 | ||
33 | /* This path will NEVER be created in this test */ | |
34 | #define PATH1 "/tmp/.test-junk-lttng" | |
35 | ||
36 | /* For lttngerr.h */ | |
37 | int opt_quiet = 1; | |
38 | int opt_verbose = 0; | |
39 | ||
40 | static const char alphanum[] = | |
41 | "0123456789" | |
42 | "ABCDEFGHIJKLMNOPQRSTUVWXYZ" | |
43 | "abcdefghijklmnopqrstuvwxyz"; | |
44 | ||
45 | static struct ltt_kernel_session *kern; | |
46 | ||
47 | /* | |
48 | * Return random string of 10 characters. | |
49 | */ | |
50 | static char *get_random_string(void) | |
51 | { | |
52 | int i; | |
53 | char *str = malloc(11); | |
54 | ||
55 | for (i = 0; i < 10; i++) { | |
56 | str[i] = alphanum[rand() % (sizeof(alphanum) - 1)]; | |
57 | } | |
58 | ||
59 | str[10] = '\0'; | |
60 | ||
61 | return str; | |
62 | } | |
63 | ||
64 | static void create_one_kernel_session(void) | |
65 | { | |
66 | printf("Create kernel session: "); | |
f9815039 | 67 | kern = trace_kernel_create_session(PATH1); |
897b8e23 DG |
68 | assert(kern != NULL); |
69 | PRINT_OK(); | |
70 | ||
71 | printf("Validating kernel session: "); | |
72 | assert(kern->fd == 0); | |
73 | assert(kern->metadata_stream_fd == 0); | |
3bd1e081 | 74 | assert(kern->consumer_fds_sent == 0); |
897b8e23 DG |
75 | assert(kern->channel_count == 0); |
76 | assert(kern->stream_count_global == 0); | |
77 | assert(kern->metadata == NULL); | |
d9800920 | 78 | assert(kern->consumer_fd == 0); |
897b8e23 DG |
79 | PRINT_OK(); |
80 | ||
81 | /* Init list in order to avoid sefaults from cds_list_del */ | |
3f43a221 | 82 | trace_kernel_destroy_session(kern); |
897b8e23 DG |
83 | } |
84 | ||
85 | static void create_kernel_metadata(void) | |
86 | { | |
87 | assert(kern != NULL); | |
88 | ||
89 | printf("Create kernel metadata: "); | |
3f43a221 | 90 | kern->metadata = trace_kernel_create_metadata(PATH1); |
897b8e23 DG |
91 | assert(kern->metadata != NULL); |
92 | PRINT_OK(); | |
93 | ||
94 | printf("Validating kernel session metadata: "); | |
95 | assert(kern->metadata->fd == 0); | |
96 | assert(strlen(kern->metadata->pathname)); | |
97 | assert(kern->metadata->conf != NULL); | |
98 | assert(kern->metadata->conf->attr.overwrite | |
99 | == DEFAULT_CHANNEL_OVERWRITE); | |
100 | assert(kern->metadata->conf->attr.subbuf_size | |
b389abbe | 101 | == DEFAULT_METADATA_SUBBUF_SIZE); |
897b8e23 | 102 | assert(kern->metadata->conf->attr.num_subbuf |
b389abbe | 103 | == DEFAULT_METADATA_SUBBUF_NUM); |
897b8e23 DG |
104 | assert(kern->metadata->conf->attr.switch_timer_interval |
105 | == DEFAULT_CHANNEL_SWITCH_TIMER); | |
106 | assert(kern->metadata->conf->attr.read_timer_interval | |
107 | == DEFAULT_CHANNEL_READ_TIMER); | |
108 | assert(kern->metadata->conf->attr.output | |
109 | == DEFAULT_KERNEL_CHANNEL_OUTPUT); | |
110 | PRINT_OK(); | |
111 | ||
3f43a221 | 112 | trace_kernel_destroy_metadata(kern->metadata); |
897b8e23 DG |
113 | } |
114 | ||
115 | static void create_kernel_channel(void) | |
116 | { | |
117 | struct ltt_kernel_channel *chan; | |
118 | struct lttng_channel attr; | |
119 | ||
120 | printf("Creating kernel channel: "); | |
3f43a221 | 121 | chan = trace_kernel_create_channel(&attr, PATH1); |
897b8e23 DG |
122 | assert(chan != NULL); |
123 | PRINT_OK(); | |
124 | ||
125 | printf("Validating kernel channel: "); | |
126 | assert(chan->fd == 0); | |
127 | assert(chan->enabled == 1); | |
128 | assert(strcmp(PATH1, chan->pathname) == 0); | |
129 | assert(chan->stream_count == 0); | |
130 | assert(chan->ctx == NULL); | |
131 | assert(chan->channel->attr.overwrite == attr.attr.overwrite); | |
132 | PRINT_OK(); | |
133 | ||
134 | /* Init list in order to avoid sefaults from cds_list_del */ | |
135 | CDS_INIT_LIST_HEAD(&chan->list); | |
3f43a221 | 136 | trace_kernel_destroy_channel(chan); |
897b8e23 DG |
137 | } |
138 | ||
139 | static void create_kernel_event(void) | |
140 | { | |
141 | struct ltt_kernel_event *event; | |
142 | struct lttng_event ev; | |
143 | ||
dbbb3ec5 | 144 | strncpy(ev.name, get_random_string(), LTTNG_KERNEL_SYM_NAME_LEN); |
897b8e23 DG |
145 | ev.type = LTTNG_EVENT_TRACEPOINT; |
146 | ||
147 | printf("Creating kernel event: "); | |
3f43a221 | 148 | event = trace_kernel_create_event(&ev); |
897b8e23 DG |
149 | assert(event != NULL); |
150 | PRINT_OK(); | |
151 | ||
152 | printf("Validating kernel event: "); | |
153 | assert(event->fd == 0); | |
154 | assert(event->enabled == 1); | |
155 | assert(event->ctx == NULL); | |
156 | assert(event->event->instrumentation == LTTNG_KERNEL_TRACEPOINT); | |
157 | assert(strlen(event->event->name)); | |
158 | PRINT_OK(); | |
159 | ||
160 | /* Init list in order to avoid sefaults from cds_list_del */ | |
161 | CDS_INIT_LIST_HEAD(&event->list); | |
3f43a221 | 162 | trace_kernel_destroy_event(event); |
897b8e23 DG |
163 | } |
164 | ||
165 | static void create_kernel_stream(void) | |
166 | { | |
167 | struct ltt_kernel_stream *stream; | |
168 | ||
169 | printf("Creating kernel stream: "); | |
3f43a221 | 170 | stream = trace_kernel_create_stream(); |
897b8e23 DG |
171 | assert(stream != NULL); |
172 | PRINT_OK(); | |
173 | ||
174 | printf("Validating kernel stream: "); | |
175 | assert(stream->fd == 0); | |
176 | assert(stream->pathname == NULL); | |
177 | assert(stream->state == 0); | |
178 | PRINT_OK(); | |
179 | ||
180 | /* Init list in order to avoid sefaults from cds_list_del */ | |
181 | CDS_INIT_LIST_HEAD(&stream->list); | |
3f43a221 | 182 | trace_kernel_destroy_stream(stream); |
897b8e23 DG |
183 | } |
184 | ||
185 | int main(int argc, char **argv) | |
186 | { | |
187 | printf("\nTesting kernel data structures:\n-----------\n"); | |
188 | ||
189 | create_one_kernel_session(); | |
190 | ||
191 | create_kernel_metadata(); | |
192 | create_kernel_channel(); | |
193 | ||
194 | ||
195 | create_kernel_event(); | |
196 | ||
197 | create_kernel_stream(); | |
198 | ||
199 | /* Success */ | |
200 | return 0; | |
201 | } |