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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 | ||
98612240 MD |
36 | #define RANDOM_STRING_LEN 11 |
37 | ||
897b8e23 | 38 | /* For lttngerr.h */ |
97e19046 DG |
39 | int lttng_opt_quiet = 1; |
40 | int lttng_opt_verbose; | |
897b8e23 DG |
41 | |
42 | static const char alphanum[] = | |
43 | "0123456789" | |
44 | "ABCDEFGHIJKLMNOPQRSTUVWXYZ" | |
45 | "abcdefghijklmnopqrstuvwxyz"; | |
46 | ||
47 | static struct ltt_kernel_session *kern; | |
98612240 | 48 | static char random_string[RANDOM_STRING_LEN]; |
897b8e23 DG |
49 | |
50 | /* | |
51 | * Return random string of 10 characters. | |
98612240 | 52 | * Not thread-safe. |
897b8e23 DG |
53 | */ |
54 | static char *get_random_string(void) | |
55 | { | |
56 | int i; | |
897b8e23 | 57 | |
98612240 MD |
58 | for (i = 0; i < RANDOM_STRING_LEN - 1; i++) { |
59 | random_string[i] = alphanum[rand() % (sizeof(alphanum) - 1)]; | |
897b8e23 DG |
60 | } |
61 | ||
98612240 | 62 | random_string[RANDOM_STRING_LEN - 1] = '\0'; |
897b8e23 | 63 | |
98612240 | 64 | return random_string; |
897b8e23 DG |
65 | } |
66 | ||
67 | static void create_one_kernel_session(void) | |
68 | { | |
69 | printf("Create kernel session: "); | |
f9815039 | 70 | kern = trace_kernel_create_session(PATH1); |
897b8e23 DG |
71 | assert(kern != NULL); |
72 | PRINT_OK(); | |
73 | ||
74 | printf("Validating kernel session: "); | |
03550b58 MD |
75 | assert(kern->fd == -1); |
76 | assert(kern->metadata_stream_fd == -1); | |
3bd1e081 | 77 | assert(kern->consumer_fds_sent == 0); |
897b8e23 DG |
78 | assert(kern->channel_count == 0); |
79 | assert(kern->stream_count_global == 0); | |
80 | assert(kern->metadata == NULL); | |
03550b58 | 81 | assert(kern->consumer_fd == -1); |
897b8e23 DG |
82 | PRINT_OK(); |
83 | ||
84 | /* Init list in order to avoid sefaults from cds_list_del */ | |
3f43a221 | 85 | trace_kernel_destroy_session(kern); |
897b8e23 DG |
86 | } |
87 | ||
88 | static void create_kernel_metadata(void) | |
89 | { | |
90 | assert(kern != NULL); | |
91 | ||
92 | printf("Create kernel metadata: "); | |
3f43a221 | 93 | kern->metadata = trace_kernel_create_metadata(PATH1); |
897b8e23 DG |
94 | assert(kern->metadata != NULL); |
95 | PRINT_OK(); | |
96 | ||
97 | printf("Validating kernel session metadata: "); | |
03550b58 | 98 | assert(kern->metadata->fd == -1); |
897b8e23 DG |
99 | assert(strlen(kern->metadata->pathname)); |
100 | assert(kern->metadata->conf != NULL); | |
101 | assert(kern->metadata->conf->attr.overwrite | |
102 | == DEFAULT_CHANNEL_OVERWRITE); | |
103 | assert(kern->metadata->conf->attr.subbuf_size | |
b389abbe | 104 | == DEFAULT_METADATA_SUBBUF_SIZE); |
897b8e23 | 105 | assert(kern->metadata->conf->attr.num_subbuf |
b389abbe | 106 | == DEFAULT_METADATA_SUBBUF_NUM); |
897b8e23 DG |
107 | assert(kern->metadata->conf->attr.switch_timer_interval |
108 | == DEFAULT_CHANNEL_SWITCH_TIMER); | |
109 | assert(kern->metadata->conf->attr.read_timer_interval | |
110 | == DEFAULT_CHANNEL_READ_TIMER); | |
111 | assert(kern->metadata->conf->attr.output | |
112 | == DEFAULT_KERNEL_CHANNEL_OUTPUT); | |
113 | PRINT_OK(); | |
114 | ||
3f43a221 | 115 | trace_kernel_destroy_metadata(kern->metadata); |
897b8e23 DG |
116 | } |
117 | ||
118 | static void create_kernel_channel(void) | |
119 | { | |
120 | struct ltt_kernel_channel *chan; | |
121 | struct lttng_channel attr; | |
122 | ||
441c16a7 MD |
123 | memset(&attr, 0, sizeof(attr)); |
124 | ||
897b8e23 | 125 | printf("Creating kernel channel: "); |
3f43a221 | 126 | chan = trace_kernel_create_channel(&attr, PATH1); |
897b8e23 DG |
127 | assert(chan != NULL); |
128 | PRINT_OK(); | |
129 | ||
130 | printf("Validating kernel channel: "); | |
03550b58 | 131 | assert(chan->fd == -1); |
897b8e23 DG |
132 | assert(chan->enabled == 1); |
133 | assert(strcmp(PATH1, chan->pathname) == 0); | |
134 | assert(chan->stream_count == 0); | |
135 | assert(chan->ctx == NULL); | |
136 | assert(chan->channel->attr.overwrite == attr.attr.overwrite); | |
137 | PRINT_OK(); | |
138 | ||
139 | /* Init list in order to avoid sefaults from cds_list_del */ | |
140 | CDS_INIT_LIST_HEAD(&chan->list); | |
3f43a221 | 141 | trace_kernel_destroy_channel(chan); |
897b8e23 DG |
142 | } |
143 | ||
144 | static void create_kernel_event(void) | |
145 | { | |
146 | struct ltt_kernel_event *event; | |
147 | struct lttng_event ev; | |
148 | ||
441c16a7 | 149 | memset(&ev, 0, sizeof(ev)); |
dbbb3ec5 | 150 | strncpy(ev.name, get_random_string(), LTTNG_KERNEL_SYM_NAME_LEN); |
897b8e23 | 151 | ev.type = LTTNG_EVENT_TRACEPOINT; |
441c16a7 | 152 | ev.loglevel_type = LTTNG_EVENT_LOGLEVEL_ALL; |
897b8e23 DG |
153 | |
154 | printf("Creating kernel event: "); | |
3f43a221 | 155 | event = trace_kernel_create_event(&ev); |
897b8e23 DG |
156 | assert(event != NULL); |
157 | PRINT_OK(); | |
158 | ||
159 | printf("Validating kernel event: "); | |
03550b58 | 160 | assert(event->fd == -1); |
897b8e23 DG |
161 | assert(event->enabled == 1); |
162 | assert(event->ctx == NULL); | |
163 | assert(event->event->instrumentation == LTTNG_KERNEL_TRACEPOINT); | |
164 | assert(strlen(event->event->name)); | |
165 | PRINT_OK(); | |
166 | ||
167 | /* Init list in order to avoid sefaults from cds_list_del */ | |
168 | CDS_INIT_LIST_HEAD(&event->list); | |
3f43a221 | 169 | trace_kernel_destroy_event(event); |
897b8e23 DG |
170 | } |
171 | ||
172 | static void create_kernel_stream(void) | |
173 | { | |
174 | struct ltt_kernel_stream *stream; | |
175 | ||
176 | printf("Creating kernel stream: "); | |
3f43a221 | 177 | stream = trace_kernel_create_stream(); |
897b8e23 DG |
178 | assert(stream != NULL); |
179 | PRINT_OK(); | |
180 | ||
181 | printf("Validating kernel stream: "); | |
03550b58 | 182 | assert(stream->fd == -1); |
897b8e23 DG |
183 | assert(stream->pathname == NULL); |
184 | assert(stream->state == 0); | |
185 | PRINT_OK(); | |
186 | ||
187 | /* Init list in order to avoid sefaults from cds_list_del */ | |
188 | CDS_INIT_LIST_HEAD(&stream->list); | |
3f43a221 | 189 | trace_kernel_destroy_stream(stream); |
897b8e23 DG |
190 | } |
191 | ||
192 | int main(int argc, char **argv) | |
193 | { | |
194 | printf("\nTesting kernel data structures:\n-----------\n"); | |
195 | ||
196 | create_one_kernel_session(); | |
197 | ||
198 | create_kernel_metadata(); | |
199 | create_kernel_channel(); | |
200 | ||
201 | ||
202 | create_kernel_event(); | |
203 | ||
204 | create_kernel_stream(); | |
205 | ||
206 | /* Success */ | |
207 | return 0; | |
208 | } |