Commit | Line | Data |
---|---|---|
f1e16794 DG |
1 | /* |
2 | * Copyright (C) 2012 - David Goulet <dgoulet@efficios.com> | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify it | |
5 | * under the terms of the GNU General Public License, version 2 only, as | |
6 | * published by the Free Software Foundation. | |
7 | * | |
8 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
9 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
10 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
11 | * more details. | |
12 | * | |
13 | * You should have received a copy of the GNU General Public License along with | |
14 | * this program; if not, write to the Free Software Foundation, Inc., 51 | |
15 | * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
16 | */ | |
17 | ||
6c1c0768 | 18 | #define _LGPL_SOURCE |
f1e16794 DG |
19 | #include <stdio.h> |
20 | #include <stdlib.h> | |
f1e16794 DG |
21 | #include <sys/stat.h> |
22 | #include <unistd.h> | |
e1f3997a | 23 | #include <inttypes.h> |
f1e16794 DG |
24 | |
25 | #include <common/common.h> | |
26 | #include <common/defaults.h> | |
f5436bfc | 27 | #include <common/compat/string.h> |
f1e16794 | 28 | |
00e2e675 | 29 | #include "consumer.h" |
8782cc74 | 30 | #include "health-sessiond.h" |
f1e16794 | 31 | #include "kernel-consumer.h" |
e9404c27 JG |
32 | #include "notification-thread-commands.h" |
33 | #include "session.h" | |
34 | #include "lttng-sessiond.h" | |
f1e16794 | 35 | |
2bba9e53 DG |
36 | static char *create_channel_path(struct consumer_output *consumer, |
37 | uid_t uid, gid_t gid) | |
00e2e675 DG |
38 | { |
39 | int ret; | |
ffe60014 | 40 | char tmp_path[PATH_MAX]; |
2bba9e53 | 41 | char *pathname = NULL; |
00e2e675 | 42 | |
2bba9e53 | 43 | assert(consumer); |
00e2e675 | 44 | |
ffe60014 DG |
45 | /* Get the right path name destination */ |
46 | if (consumer->type == CONSUMER_DST_LOCAL) { | |
47 | /* Set application path to the destination path */ | |
366a9222 JD |
48 | ret = snprintf(tmp_path, sizeof(tmp_path), "%s%s%s", |
49 | consumer->dst.session_root_path, | |
50 | consumer->chunk_path, | |
5feee503 | 51 | consumer->domain_subdir); |
ffe60014 | 52 | if (ret < 0) { |
2bba9e53 | 53 | PERROR("snprintf kernel channel path"); |
ffe60014 | 54 | goto error; |
dba13f1d JG |
55 | } else if (ret >= sizeof(tmp_path)) { |
56 | ERR("Kernel channel path exceeds the maximal allowed length of of %zu bytes (%i bytes required) with path \"%s%s%s\"", | |
57 | sizeof(tmp_path), ret, | |
58 | consumer->dst.session_root_path, | |
59 | consumer->chunk_path, | |
5feee503 | 60 | consumer->domain_subdir); |
dba13f1d | 61 | goto error; |
ffe60014 | 62 | } |
f5436bfc | 63 | pathname = lttng_strndup(tmp_path, sizeof(tmp_path)); |
bb3c4e70 | 64 | if (!pathname) { |
f5436bfc | 65 | PERROR("lttng_strndup"); |
bb3c4e70 MD |
66 | goto error; |
67 | } | |
ffe60014 DG |
68 | |
69 | /* Create directory */ | |
2bba9e53 | 70 | ret = run_as_mkdir_recursive(pathname, S_IRWXU | S_IRWXG, uid, gid); |
ffe60014 | 71 | if (ret < 0) { |
df5b86c8 | 72 | if (errno != EEXIST) { |
ffe60014 DG |
73 | ERR("Trace directory creation error"); |
74 | goto error; | |
75 | } | |
76 | } | |
77 | DBG3("Kernel local consumer tracefile path: %s", pathname); | |
78 | } else { | |
5feee503 | 79 | /* Network output. */ |
2b29c638 JD |
80 | ret = snprintf(tmp_path, sizeof(tmp_path), "%s%s", |
81 | consumer->dst.net.base_dir, | |
5feee503 | 82 | consumer->domain_subdir); |
ffe60014 | 83 | if (ret < 0) { |
2bba9e53 | 84 | PERROR("snprintf kernel metadata path"); |
ffe60014 | 85 | goto error; |
dba13f1d JG |
86 | } else if (ret >= sizeof(tmp_path)) { |
87 | ERR("Kernel channel path exceeds the maximal allowed length of of %zu bytes (%i bytes required) with path \"%s%s\"", | |
88 | sizeof(tmp_path), ret, | |
89 | consumer->dst.net.base_dir, | |
5feee503 | 90 | consumer->domain_subdir); |
dba13f1d | 91 | goto error; |
ffe60014 | 92 | } |
f5436bfc | 93 | pathname = lttng_strndup(tmp_path, sizeof(tmp_path)); |
bb3c4e70 | 94 | if (!pathname) { |
f5436bfc | 95 | PERROR("lttng_strndup"); |
bb3c4e70 MD |
96 | goto error; |
97 | } | |
ffe60014 DG |
98 | DBG3("Kernel network consumer subdir path: %s", pathname); |
99 | } | |
100 | ||
2bba9e53 DG |
101 | return pathname; |
102 | ||
103 | error: | |
104 | free(pathname); | |
105 | return NULL; | |
106 | } | |
107 | ||
108 | /* | |
109 | * Sending a single channel to the consumer with command ADD_CHANNEL. | |
110 | */ | |
606b643e | 111 | static |
2bba9e53 | 112 | int kernel_consumer_add_channel(struct consumer_socket *sock, |
e9404c27 JG |
113 | struct ltt_kernel_channel *channel, |
114 | struct ltt_kernel_session *ksession, | |
2bba9e53 DG |
115 | unsigned int monitor) |
116 | { | |
117 | int ret; | |
118 | char *pathname; | |
119 | struct lttcomm_consumer_msg lkm; | |
120 | struct consumer_output *consumer; | |
e9404c27 | 121 | enum lttng_error_code status; |
48a86f68 | 122 | struct ltt_session *session = NULL; |
e9404c27 | 123 | struct lttng_channel_extended *channel_attr_extended; |
2bba9e53 DG |
124 | |
125 | /* Safety net */ | |
126 | assert(channel); | |
e9404c27 JG |
127 | assert(ksession); |
128 | assert(ksession->consumer); | |
2bba9e53 | 129 | |
e9404c27 JG |
130 | consumer = ksession->consumer; |
131 | channel_attr_extended = (struct lttng_channel_extended *) | |
132 | channel->channel->attr.extended.ptr; | |
2bba9e53 DG |
133 | |
134 | DBG("Kernel consumer adding channel %s to kernel consumer", | |
135 | channel->channel->name); | |
136 | ||
137 | if (monitor) { | |
e9404c27 JG |
138 | pathname = create_channel_path(consumer, ksession->uid, |
139 | ksession->gid); | |
2bba9e53 DG |
140 | } else { |
141 | /* Empty path. */ | |
53efb85a | 142 | pathname = strdup(""); |
2bba9e53 | 143 | } |
bb3c4e70 MD |
144 | if (!pathname) { |
145 | ret = -1; | |
146 | goto error; | |
147 | } | |
2bba9e53 | 148 | |
00e2e675 | 149 | /* Prep channel message structure */ |
638e7b4e | 150 | consumer_init_add_channel_comm_msg(&lkm, |
e1f3997a | 151 | channel->key, |
e9404c27 | 152 | ksession->id, |
ffe60014 | 153 | pathname, |
e9404c27 JG |
154 | ksession->uid, |
155 | ksession->gid, | |
ffe60014 | 156 | consumer->net_seq_index, |
c30aaa51 | 157 | channel->channel->name, |
ffe60014 DG |
158 | channel->stream_count, |
159 | channel->channel->attr.output, | |
1624d5b7 JD |
160 | CONSUMER_CHANNEL_TYPE_DATA, |
161 | channel->channel->attr.tracefile_size, | |
2bba9e53 | 162 | channel->channel->attr.tracefile_count, |
ecc48a90 | 163 | monitor, |
e9404c27 JG |
164 | channel->channel->attr.live_timer_interval, |
165 | channel_attr_extended->monitor_timer_interval); | |
00e2e675 | 166 | |
840cb59c | 167 | health_code_update(); |
ca03de58 | 168 | |
00e2e675 DG |
169 | ret = consumer_send_channel(sock, &lkm); |
170 | if (ret < 0) { | |
171 | goto error; | |
172 | } | |
173 | ||
840cb59c | 174 | health_code_update(); |
e9404c27 JG |
175 | rcu_read_lock(); |
176 | session = session_find_by_id(ksession->id); | |
177 | assert(session); | |
e098433c JG |
178 | assert(pthread_mutex_trylock(&session->lock)); |
179 | assert(session_trylock_list()); | |
ca03de58 | 180 | |
e9404c27 JG |
181 | status = notification_thread_command_add_channel( |
182 | notification_thread_handle, session->name, | |
183 | ksession->uid, ksession->gid, | |
e1f3997a | 184 | channel->channel->name, channel->key, |
e9404c27 JG |
185 | LTTNG_DOMAIN_KERNEL, |
186 | channel->channel->attr.subbuf_size * channel->channel->attr.num_subbuf); | |
187 | rcu_read_unlock(); | |
188 | if (status != LTTNG_OK) { | |
189 | ret = -1; | |
190 | goto error; | |
191 | } | |
753873bf JR |
192 | |
193 | channel->published_to_notification_thread = true; | |
194 | ||
00e2e675 | 195 | error: |
48a86f68 JG |
196 | if (session) { |
197 | session_put(session); | |
198 | } | |
53efb85a | 199 | free(pathname); |
00e2e675 DG |
200 | return ret; |
201 | } | |
202 | ||
203 | /* | |
204 | * Sending metadata to the consumer with command ADD_CHANNEL and ADD_STREAM. | |
9a318688 JG |
205 | * |
206 | * The consumer socket lock must be held by the caller. | |
00e2e675 | 207 | */ |
f50f23d9 | 208 | int kernel_consumer_add_metadata(struct consumer_socket *sock, |
e098433c | 209 | struct ltt_kernel_session *ksession, unsigned int monitor) |
00e2e675 DG |
210 | { |
211 | int ret; | |
2bba9e53 | 212 | char *pathname; |
00e2e675 | 213 | struct lttcomm_consumer_msg lkm; |
a7d9a3e7 | 214 | struct consumer_output *consumer; |
48a86f68 | 215 | struct ltt_session *session = NULL; |
e098433c JG |
216 | |
217 | rcu_read_lock(); | |
00e2e675 DG |
218 | |
219 | /* Safety net */ | |
e098433c JG |
220 | assert(ksession); |
221 | assert(ksession->consumer); | |
f50f23d9 | 222 | assert(sock); |
00e2e675 | 223 | |
e098433c JG |
224 | DBG("Sending metadata %d to kernel consumer", |
225 | ksession->metadata_stream_fd); | |
00e2e675 DG |
226 | |
227 | /* Get consumer output pointer */ | |
e098433c | 228 | consumer = ksession->consumer; |
00e2e675 | 229 | |
2bba9e53 | 230 | if (monitor) { |
e098433c JG |
231 | pathname = create_channel_path(consumer, |
232 | ksession->uid, ksession->gid); | |
00e2e675 | 233 | } else { |
2bba9e53 | 234 | /* Empty path. */ |
53efb85a | 235 | pathname = strdup(""); |
00e2e675 | 236 | } |
bb3c4e70 MD |
237 | if (!pathname) { |
238 | ret = -1; | |
239 | goto error; | |
240 | } | |
00e2e675 | 241 | |
e098433c JG |
242 | session = session_find_by_id(ksession->id); |
243 | assert(session); | |
244 | assert(pthread_mutex_trylock(&session->lock)); | |
245 | assert(session_trylock_list()); | |
246 | ||
00e2e675 | 247 | /* Prep channel message structure */ |
638e7b4e | 248 | consumer_init_add_channel_comm_msg(&lkm, |
e098433c JG |
249 | ksession->metadata->key, |
250 | ksession->id, | |
ffe60014 | 251 | pathname, |
e098433c JG |
252 | ksession->uid, |
253 | ksession->gid, | |
ffe60014 | 254 | consumer->net_seq_index, |
30079b6b | 255 | DEFAULT_METADATA_NAME, |
ffe60014 DG |
256 | 1, |
257 | DEFAULT_KERNEL_CHANNEL_OUTPUT, | |
1624d5b7 | 258 | CONSUMER_CHANNEL_TYPE_METADATA, |
2bba9e53 | 259 | 0, 0, |
e9404c27 | 260 | monitor, 0, 0); |
00e2e675 | 261 | |
840cb59c | 262 | health_code_update(); |
ca03de58 | 263 | |
00e2e675 DG |
264 | ret = consumer_send_channel(sock, &lkm); |
265 | if (ret < 0) { | |
266 | goto error; | |
267 | } | |
268 | ||
840cb59c | 269 | health_code_update(); |
ca03de58 | 270 | |
00e2e675 | 271 | /* Prep stream message structure */ |
e098433c JG |
272 | consumer_init_add_stream_comm_msg(&lkm, |
273 | ksession->metadata->key, | |
274 | ksession->metadata_stream_fd, | |
275 | 0 /* CPU: 0 for metadata. */, | |
276 | session->current_archive_id); | |
00e2e675 | 277 | |
840cb59c | 278 | health_code_update(); |
ca03de58 | 279 | |
00e2e675 | 280 | /* Send stream and file descriptor */ |
a7d9a3e7 | 281 | ret = consumer_send_stream(sock, consumer, &lkm, |
e098433c | 282 | &ksession->metadata_stream_fd, 1); |
00e2e675 DG |
283 | if (ret < 0) { |
284 | goto error; | |
285 | } | |
286 | ||
840cb59c | 287 | health_code_update(); |
ca03de58 | 288 | |
00e2e675 | 289 | error: |
e098433c | 290 | rcu_read_unlock(); |
53efb85a | 291 | free(pathname); |
48a86f68 JG |
292 | if (session) { |
293 | session_put(session); | |
294 | } | |
00e2e675 DG |
295 | return ret; |
296 | } | |
297 | ||
298 | /* | |
299 | * Sending a single stream to the consumer with command ADD_STREAM. | |
300 | */ | |
5b0e3ccb | 301 | static |
f50f23d9 | 302 | int kernel_consumer_add_stream(struct consumer_socket *sock, |
e098433c JG |
303 | struct ltt_kernel_channel *channel, |
304 | struct ltt_kernel_stream *stream, | |
305 | struct ltt_kernel_session *session, unsigned int monitor, | |
306 | uint64_t trace_archive_id) | |
00e2e675 DG |
307 | { |
308 | int ret; | |
00e2e675 | 309 | struct lttcomm_consumer_msg lkm; |
a7d9a3e7 | 310 | struct consumer_output *consumer; |
00e2e675 DG |
311 | |
312 | assert(channel); | |
313 | assert(stream); | |
314 | assert(session); | |
315 | assert(session->consumer); | |
f50f23d9 | 316 | assert(sock); |
00e2e675 DG |
317 | |
318 | DBG("Sending stream %d of channel %s to kernel consumer", | |
319 | stream->fd, channel->channel->name); | |
320 | ||
321 | /* Get consumer output pointer */ | |
a7d9a3e7 | 322 | consumer = session->consumer; |
00e2e675 | 323 | |
00e2e675 | 324 | /* Prep stream consumer message */ |
e098433c | 325 | consumer_init_add_stream_comm_msg(&lkm, |
e1f3997a | 326 | channel->key, |
00e2e675 | 327 | stream->fd, |
e098433c JG |
328 | stream->cpu, |
329 | trace_archive_id); | |
00e2e675 | 330 | |
840cb59c | 331 | health_code_update(); |
ca03de58 | 332 | |
00e2e675 | 333 | /* Send stream and file descriptor */ |
a7d9a3e7 | 334 | ret = consumer_send_stream(sock, consumer, &lkm, &stream->fd, 1); |
00e2e675 DG |
335 | if (ret < 0) { |
336 | goto error; | |
337 | } | |
338 | ||
840cb59c | 339 | health_code_update(); |
ca03de58 | 340 | |
00e2e675 DG |
341 | error: |
342 | return ret; | |
343 | } | |
344 | ||
a4baae1b JD |
345 | /* |
346 | * Sending the notification that all streams were sent with STREAMS_SENT. | |
347 | */ | |
348 | int kernel_consumer_streams_sent(struct consumer_socket *sock, | |
349 | struct ltt_kernel_session *session, uint64_t channel_key) | |
350 | { | |
351 | int ret; | |
352 | struct lttcomm_consumer_msg lkm; | |
353 | struct consumer_output *consumer; | |
354 | ||
355 | assert(sock); | |
356 | assert(session); | |
357 | ||
358 | DBG("Sending streams_sent"); | |
359 | /* Get consumer output pointer */ | |
360 | consumer = session->consumer; | |
361 | ||
362 | /* Prep stream consumer message */ | |
363 | consumer_init_streams_sent_comm_msg(&lkm, | |
364 | LTTNG_CONSUMER_STREAMS_SENT, | |
365 | channel_key, consumer->net_seq_index); | |
366 | ||
367 | health_code_update(); | |
368 | ||
369 | /* Send stream and file descriptor */ | |
370 | ret = consumer_send_msg(sock, &lkm); | |
371 | if (ret < 0) { | |
372 | goto error; | |
373 | } | |
374 | ||
375 | error: | |
376 | return ret; | |
377 | } | |
378 | ||
f1e16794 DG |
379 | /* |
380 | * Send all stream fds of kernel channel to the consumer. | |
9a318688 JG |
381 | * |
382 | * The consumer socket lock must be held by the caller. | |
f1e16794 | 383 | */ |
1fc1b7c8 | 384 | int kernel_consumer_send_channel_streams(struct consumer_socket *sock, |
e098433c | 385 | struct ltt_kernel_channel *channel, struct ltt_kernel_session *ksession, |
2bba9e53 | 386 | unsigned int monitor) |
f1e16794 | 387 | { |
e99f9447 | 388 | int ret = LTTNG_OK; |
f1e16794 | 389 | struct ltt_kernel_stream *stream; |
48a86f68 | 390 | struct ltt_session *session = NULL; |
00e2e675 DG |
391 | |
392 | /* Safety net */ | |
393 | assert(channel); | |
e098433c JG |
394 | assert(ksession); |
395 | assert(ksession->consumer); | |
f50f23d9 | 396 | assert(sock); |
00e2e675 | 397 | |
e098433c JG |
398 | rcu_read_lock(); |
399 | ||
400 | session = session_find_by_id(ksession->id); | |
401 | assert(session); | |
402 | assert(pthread_mutex_trylock(&session->lock)); | |
403 | assert(session_trylock_list()); | |
404 | ||
00e2e675 | 405 | /* Bail out if consumer is disabled */ |
e098433c | 406 | if (!ksession->consumer->enabled) { |
f73fabfd | 407 | ret = LTTNG_OK; |
00e2e675 DG |
408 | goto error; |
409 | } | |
f1e16794 DG |
410 | |
411 | DBG("Sending streams of channel %s to kernel consumer", | |
412 | channel->channel->name); | |
413 | ||
e99f9447 | 414 | if (!channel->sent_to_consumer) { |
e098433c | 415 | ret = kernel_consumer_add_channel(sock, channel, ksession, monitor); |
e99f9447 MD |
416 | if (ret < 0) { |
417 | goto error; | |
418 | } | |
419 | channel->sent_to_consumer = true; | |
f1e16794 DG |
420 | } |
421 | ||
422 | /* Send streams */ | |
423 | cds_list_for_each_entry(stream, &channel->stream_list.head, list) { | |
6986ab9b | 424 | if (!stream->fd || stream->sent_to_consumer) { |
f1e16794 DG |
425 | continue; |
426 | } | |
00e2e675 DG |
427 | |
428 | /* Add stream on the kernel consumer side. */ | |
e098433c JG |
429 | ret = kernel_consumer_add_stream(sock, channel, stream, |
430 | ksession, monitor, session->current_archive_id); | |
f1e16794 | 431 | if (ret < 0) { |
f1e16794 DG |
432 | goto error; |
433 | } | |
6986ab9b | 434 | stream->sent_to_consumer = true; |
f1e16794 DG |
435 | } |
436 | ||
f1e16794 | 437 | error: |
e098433c | 438 | rcu_read_unlock(); |
48a86f68 JG |
439 | if (session) { |
440 | session_put(session); | |
441 | } | |
f1e16794 DG |
442 | return ret; |
443 | } | |
444 | ||
445 | /* | |
446 | * Send all stream fds of the kernel session to the consumer. | |
9a318688 JG |
447 | * |
448 | * The consumer socket lock must be held by the caller. | |
f1e16794 | 449 | */ |
f50f23d9 DG |
450 | int kernel_consumer_send_session(struct consumer_socket *sock, |
451 | struct ltt_kernel_session *session) | |
f1e16794 | 452 | { |
2bba9e53 | 453 | int ret, monitor = 0; |
f1e16794 | 454 | struct ltt_kernel_channel *chan; |
f1e16794 | 455 | |
00e2e675 DG |
456 | /* Safety net */ |
457 | assert(session); | |
458 | assert(session->consumer); | |
f50f23d9 | 459 | assert(sock); |
f1e16794 | 460 | |
00e2e675 DG |
461 | /* Bail out if consumer is disabled */ |
462 | if (!session->consumer->enabled) { | |
f73fabfd | 463 | ret = LTTNG_OK; |
00e2e675 | 464 | goto error; |
f1e16794 DG |
465 | } |
466 | ||
2bba9e53 DG |
467 | /* Don't monitor the streams on the consumer if in flight recorder. */ |
468 | if (session->output_traces) { | |
469 | monitor = 1; | |
470 | } | |
471 | ||
00e2e675 DG |
472 | DBG("Sending session stream to kernel consumer"); |
473 | ||
609af759 | 474 | if (session->metadata_stream_fd >= 0 && session->metadata) { |
2bba9e53 | 475 | ret = kernel_consumer_add_metadata(sock, session, monitor); |
f1e16794 | 476 | if (ret < 0) { |
f1e16794 DG |
477 | goto error; |
478 | } | |
f1e16794 DG |
479 | } |
480 | ||
00e2e675 | 481 | /* Send channel and streams of it */ |
f1e16794 | 482 | cds_list_for_each_entry(chan, &session->channel_list.head, list) { |
1fc1b7c8 | 483 | ret = kernel_consumer_send_channel_streams(sock, chan, session, |
2bba9e53 | 484 | monitor); |
f1e16794 DG |
485 | if (ret < 0) { |
486 | goto error; | |
487 | } | |
601262d6 JD |
488 | if (monitor) { |
489 | /* | |
490 | * Inform the relay that all the streams for the | |
491 | * channel were sent. | |
492 | */ | |
e1f3997a | 493 | ret = kernel_consumer_streams_sent(sock, session, chan->key); |
601262d6 JD |
494 | if (ret < 0) { |
495 | goto error; | |
496 | } | |
497 | } | |
f1e16794 DG |
498 | } |
499 | ||
00e2e675 | 500 | DBG("Kernel consumer FDs of metadata and channel streams sent"); |
f1e16794 | 501 | |
4ce9ff51 | 502 | session->consumer_fds_sent = 1; |
f1e16794 DG |
503 | return 0; |
504 | ||
505 | error: | |
506 | return ret; | |
507 | } | |
07b86b52 JD |
508 | |
509 | int kernel_consumer_destroy_channel(struct consumer_socket *socket, | |
510 | struct ltt_kernel_channel *channel) | |
511 | { | |
512 | int ret; | |
513 | struct lttcomm_consumer_msg msg; | |
514 | ||
515 | assert(channel); | |
516 | assert(socket); | |
07b86b52 | 517 | |
e1f3997a | 518 | DBG("Sending kernel consumer destroy channel key %" PRIu64, channel->key); |
07b86b52 | 519 | |
53efb85a | 520 | memset(&msg, 0, sizeof(msg)); |
07b86b52 | 521 | msg.cmd_type = LTTNG_CONSUMER_DESTROY_CHANNEL; |
e1f3997a | 522 | msg.u.destroy_channel.key = channel->key; |
07b86b52 JD |
523 | |
524 | pthread_mutex_lock(socket->lock); | |
525 | health_code_update(); | |
526 | ||
527 | ret = consumer_send_msg(socket, &msg); | |
528 | if (ret < 0) { | |
529 | goto error; | |
530 | } | |
531 | ||
532 | error: | |
533 | health_code_update(); | |
534 | pthread_mutex_unlock(socket->lock); | |
535 | return ret; | |
536 | } | |
537 | ||
538 | int kernel_consumer_destroy_metadata(struct consumer_socket *socket, | |
539 | struct ltt_kernel_metadata *metadata) | |
540 | { | |
541 | int ret; | |
542 | struct lttcomm_consumer_msg msg; | |
543 | ||
544 | assert(metadata); | |
545 | assert(socket); | |
07b86b52 | 546 | |
d40f0359 | 547 | DBG("Sending kernel consumer destroy channel key %" PRIu64, metadata->key); |
07b86b52 | 548 | |
53efb85a | 549 | memset(&msg, 0, sizeof(msg)); |
07b86b52 | 550 | msg.cmd_type = LTTNG_CONSUMER_DESTROY_CHANNEL; |
d40f0359 | 551 | msg.u.destroy_channel.key = metadata->key; |
07b86b52 JD |
552 | |
553 | pthread_mutex_lock(socket->lock); | |
554 | health_code_update(); | |
555 | ||
556 | ret = consumer_send_msg(socket, &msg); | |
557 | if (ret < 0) { | |
558 | goto error; | |
559 | } | |
560 | ||
561 | error: | |
562 | health_code_update(); | |
563 | pthread_mutex_unlock(socket->lock); | |
564 | return ret; | |
565 | } |