Commit | Line | Data |
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00e2e675 DG |
1 | /* |
2 | * Copyright (C) 2012 - David Goulet <dgoulet@efficios.com> | |
92816cc3 | 3 | * 2018 - Jérémie Galarneau <jeremie.galarneau@efficios.com> |
00e2e675 DG |
4 | * |
5 | * This program is free software; you can redistribute it and/or modify it | |
6 | * under the terms of the GNU General Public License, version 2 only, as | |
7 | * published by the Free Software Foundation. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
12 | * more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License along with | |
15 | * this program; if not, write to the Free Software Foundation, Inc., 51 | |
16 | * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
17 | */ | |
18 | ||
6c1c0768 | 19 | #define _LGPL_SOURCE |
00e2e675 DG |
20 | #include <assert.h> |
21 | #include <stdio.h> | |
22 | #include <stdlib.h> | |
23 | #include <string.h> | |
24 | #include <sys/stat.h> | |
25 | #include <sys/types.h> | |
26 | #include <unistd.h> | |
d88aee68 | 27 | #include <inttypes.h> |
00e2e675 DG |
28 | |
29 | #include <common/common.h> | |
30 | #include <common/defaults.h> | |
31 | #include <common/uri.h> | |
d3e2ba59 | 32 | #include <common/relayd/relayd.h> |
d2956687 | 33 | #include <common/string-utils/format.h> |
00e2e675 DG |
34 | |
35 | #include "consumer.h" | |
8782cc74 | 36 | #include "health-sessiond.h" |
7972aab2 | 37 | #include "ust-app.h" |
0b2dc8df | 38 | #include "utils.h" |
658f12fa | 39 | #include "lttng-sessiond.h" |
00e2e675 | 40 | |
3b967712 MD |
41 | /* |
42 | * Return allocated full pathname of the session using the consumer trace path | |
43 | * and subdir if available. | |
44 | * | |
45 | * The caller can safely free(3) the returned value. On error, NULL is | |
46 | * returned. | |
47 | */ | |
48 | char *setup_channel_trace_path(struct consumer_output *consumer, | |
49 | const char *session_path) | |
50 | { | |
51 | int ret; | |
52 | char *pathname; | |
53 | ||
54 | assert(consumer); | |
55 | assert(session_path); | |
56 | ||
57 | health_code_update(); | |
58 | ||
59 | /* | |
60 | * Allocate the string ourself to make sure we never exceed | |
61 | * LTTNG_PATH_MAX. | |
62 | */ | |
63 | pathname = zmalloc(LTTNG_PATH_MAX); | |
64 | if (!pathname) { | |
65 | goto error; | |
66 | } | |
67 | ||
68 | /* Get correct path name destination */ | |
69 | if (consumer->type == CONSUMER_DST_NET && | |
70 | consumer->relay_major_version == 2 && | |
71 | consumer->relay_minor_version < 11) { | |
72 | ret = snprintf(pathname, LTTNG_PATH_MAX, "%s%s/%s%s", | |
73 | consumer->dst.net.base_dir, | |
74 | consumer->chunk_path, consumer->domain_subdir, | |
75 | session_path); | |
76 | } else { | |
77 | ret = snprintf(pathname, LTTNG_PATH_MAX, "%s%s", | |
78 | consumer->domain_subdir, session_path); | |
79 | } | |
80 | DBG3("Consumer trace path relative to current trace chunk: \"%s\"", | |
81 | pathname); | |
82 | if (ret < 0) { | |
83 | PERROR("Failed to format channel path"); | |
84 | goto error; | |
85 | } else if (ret >= LTTNG_PATH_MAX) { | |
86 | ERR("Truncation occurred while formatting channel path"); | |
3b967712 MD |
87 | goto error; |
88 | } | |
89 | ||
90 | return pathname; | |
91 | error: | |
92 | free(pathname); | |
93 | return NULL; | |
94 | } | |
95 | ||
52898cb1 DG |
96 | /* |
97 | * Send a data payload using a given consumer socket of size len. | |
98 | * | |
99 | * The consumer socket lock MUST be acquired before calling this since this | |
100 | * function can change the fd value. | |
101 | * | |
102 | * Return 0 on success else a negative value on error. | |
103 | */ | |
104 | int consumer_socket_send(struct consumer_socket *socket, void *msg, size_t len) | |
105 | { | |
106 | int fd; | |
107 | ssize_t size; | |
108 | ||
109 | assert(socket); | |
9363801e | 110 | assert(socket->fd_ptr); |
52898cb1 DG |
111 | assert(msg); |
112 | ||
113 | /* Consumer socket is invalid. Stopping. */ | |
9363801e | 114 | fd = *socket->fd_ptr; |
52898cb1 DG |
115 | if (fd < 0) { |
116 | goto error; | |
117 | } | |
118 | ||
119 | size = lttcomm_send_unix_sock(fd, msg, len); | |
120 | if (size < 0) { | |
121 | /* The above call will print a PERROR on error. */ | |
122 | DBG("Error when sending data to consumer on sock %d", fd); | |
123 | /* | |
92db7cdc DG |
124 | * At this point, the socket is not usable anymore thus closing it and |
125 | * setting the file descriptor to -1 so it is not reused. | |
52898cb1 DG |
126 | */ |
127 | ||
128 | /* This call will PERROR on error. */ | |
129 | (void) lttcomm_close_unix_sock(fd); | |
9363801e | 130 | *socket->fd_ptr = -1; |
52898cb1 DG |
131 | goto error; |
132 | } | |
133 | ||
134 | return 0; | |
135 | ||
136 | error: | |
137 | return -1; | |
138 | } | |
139 | ||
140 | /* | |
141 | * Receive a data payload using a given consumer socket of size len. | |
142 | * | |
143 | * The consumer socket lock MUST be acquired before calling this since this | |
144 | * function can change the fd value. | |
145 | * | |
146 | * Return 0 on success else a negative value on error. | |
147 | */ | |
148 | int consumer_socket_recv(struct consumer_socket *socket, void *msg, size_t len) | |
149 | { | |
150 | int fd; | |
151 | ssize_t size; | |
152 | ||
153 | assert(socket); | |
9363801e | 154 | assert(socket->fd_ptr); |
52898cb1 DG |
155 | assert(msg); |
156 | ||
157 | /* Consumer socket is invalid. Stopping. */ | |
9363801e | 158 | fd = *socket->fd_ptr; |
52898cb1 DG |
159 | if (fd < 0) { |
160 | goto error; | |
161 | } | |
162 | ||
163 | size = lttcomm_recv_unix_sock(fd, msg, len); | |
164 | if (size <= 0) { | |
165 | /* The above call will print a PERROR on error. */ | |
166 | DBG("Error when receiving data from the consumer socket %d", fd); | |
167 | /* | |
92db7cdc DG |
168 | * At this point, the socket is not usable anymore thus closing it and |
169 | * setting the file descriptor to -1 so it is not reused. | |
52898cb1 DG |
170 | */ |
171 | ||
172 | /* This call will PERROR on error. */ | |
173 | (void) lttcomm_close_unix_sock(fd); | |
9363801e | 174 | *socket->fd_ptr = -1; |
52898cb1 DG |
175 | goto error; |
176 | } | |
177 | ||
178 | return 0; | |
179 | ||
180 | error: | |
181 | return -1; | |
182 | } | |
183 | ||
f50f23d9 DG |
184 | /* |
185 | * Receive a reply command status message from the consumer. Consumer socket | |
186 | * lock MUST be acquired before calling this function. | |
187 | * | |
188 | * Return 0 on success, -1 on recv error or a negative lttng error code which | |
189 | * was possibly returned by the consumer. | |
190 | */ | |
191 | int consumer_recv_status_reply(struct consumer_socket *sock) | |
192 | { | |
193 | int ret; | |
194 | struct lttcomm_consumer_status_msg reply; | |
195 | ||
196 | assert(sock); | |
197 | ||
52898cb1 DG |
198 | ret = consumer_socket_recv(sock, &reply, sizeof(reply)); |
199 | if (ret < 0) { | |
f50f23d9 DG |
200 | goto end; |
201 | } | |
202 | ||
0c759fc9 | 203 | if (reply.ret_code == LTTCOMM_CONSUMERD_SUCCESS) { |
f50f23d9 DG |
204 | /* All good. */ |
205 | ret = 0; | |
206 | } else { | |
207 | ret = -reply.ret_code; | |
ffe60014 | 208 | DBG("Consumer ret code %d", ret); |
f50f23d9 DG |
209 | } |
210 | ||
211 | end: | |
212 | return ret; | |
213 | } | |
214 | ||
ffe60014 DG |
215 | /* |
216 | * Once the ASK_CHANNEL command is sent to the consumer, the channel | |
217 | * information are sent back. This call receives that data and populates key | |
218 | * and stream_count. | |
219 | * | |
220 | * On success return 0 and both key and stream_count are set. On error, a | |
221 | * negative value is sent back and both parameters are untouched. | |
222 | */ | |
223 | int consumer_recv_status_channel(struct consumer_socket *sock, | |
d88aee68 | 224 | uint64_t *key, unsigned int *stream_count) |
ffe60014 DG |
225 | { |
226 | int ret; | |
227 | struct lttcomm_consumer_status_channel reply; | |
228 | ||
229 | assert(sock); | |
230 | assert(stream_count); | |
231 | assert(key); | |
232 | ||
52898cb1 DG |
233 | ret = consumer_socket_recv(sock, &reply, sizeof(reply)); |
234 | if (ret < 0) { | |
ffe60014 DG |
235 | goto end; |
236 | } | |
237 | ||
238 | /* An error is possible so don't touch the key and stream_count. */ | |
0c759fc9 | 239 | if (reply.ret_code != LTTCOMM_CONSUMERD_SUCCESS) { |
ffe60014 DG |
240 | ret = -1; |
241 | goto end; | |
242 | } | |
243 | ||
244 | *key = reply.key; | |
245 | *stream_count = reply.stream_count; | |
0c759fc9 | 246 | ret = 0; |
ffe60014 DG |
247 | |
248 | end: | |
249 | return ret; | |
250 | } | |
251 | ||
2f77fc4b DG |
252 | /* |
253 | * Send destroy relayd command to consumer. | |
254 | * | |
255 | * On success return positive value. On error, negative value. | |
256 | */ | |
257 | int consumer_send_destroy_relayd(struct consumer_socket *sock, | |
258 | struct consumer_output *consumer) | |
259 | { | |
260 | int ret; | |
261 | struct lttcomm_consumer_msg msg; | |
262 | ||
263 | assert(consumer); | |
264 | assert(sock); | |
265 | ||
9363801e | 266 | DBG2("Sending destroy relayd command to consumer sock %d", *sock->fd_ptr); |
2f77fc4b | 267 | |
53efb85a | 268 | memset(&msg, 0, sizeof(msg)); |
2f77fc4b DG |
269 | msg.cmd_type = LTTNG_CONSUMER_DESTROY_RELAYD; |
270 | msg.u.destroy_relayd.net_seq_idx = consumer->net_seq_index; | |
271 | ||
272 | pthread_mutex_lock(sock->lock); | |
52898cb1 | 273 | ret = consumer_socket_send(sock, &msg, sizeof(msg)); |
2f77fc4b | 274 | if (ret < 0) { |
52898cb1 | 275 | goto error; |
2f77fc4b DG |
276 | } |
277 | ||
f50f23d9 DG |
278 | /* Don't check the return value. The caller will do it. */ |
279 | ret = consumer_recv_status_reply(sock); | |
280 | ||
2f77fc4b DG |
281 | DBG2("Consumer send destroy relayd command done"); |
282 | ||
283 | error: | |
52898cb1 | 284 | pthread_mutex_unlock(sock->lock); |
2f77fc4b DG |
285 | return ret; |
286 | } | |
287 | ||
288 | /* | |
289 | * For each consumer socket in the consumer output object, send a destroy | |
290 | * relayd command. | |
291 | */ | |
292 | void consumer_output_send_destroy_relayd(struct consumer_output *consumer) | |
293 | { | |
2f77fc4b DG |
294 | struct lttng_ht_iter iter; |
295 | struct consumer_socket *socket; | |
296 | ||
297 | assert(consumer); | |
298 | ||
299 | /* Destroy any relayd connection */ | |
6dc3064a | 300 | if (consumer->type == CONSUMER_DST_NET) { |
2f77fc4b DG |
301 | rcu_read_lock(); |
302 | cds_lfht_for_each_entry(consumer->socks->ht, &iter.iter, socket, | |
303 | node.node) { | |
c617c0c6 MD |
304 | int ret; |
305 | ||
2f77fc4b DG |
306 | /* Send destroy relayd command */ |
307 | ret = consumer_send_destroy_relayd(socket, consumer); | |
308 | if (ret < 0) { | |
c5c45efa | 309 | DBG("Unable to send destroy relayd command to consumer"); |
2f77fc4b DG |
310 | /* Continue since we MUST delete everything at this point. */ |
311 | } | |
312 | } | |
313 | rcu_read_unlock(); | |
314 | } | |
315 | } | |
316 | ||
a4b92340 DG |
317 | /* |
318 | * From a consumer_data structure, allocate and add a consumer socket to the | |
319 | * consumer output. | |
320 | * | |
321 | * Return 0 on success, else negative value on error | |
322 | */ | |
323 | int consumer_create_socket(struct consumer_data *data, | |
324 | struct consumer_output *output) | |
325 | { | |
326 | int ret = 0; | |
327 | struct consumer_socket *socket; | |
328 | ||
329 | assert(data); | |
330 | ||
331 | if (output == NULL || data->cmd_sock < 0) { | |
332 | /* | |
333 | * Not an error. Possible there is simply not spawned consumer or it's | |
334 | * disabled for the tracing session asking the socket. | |
335 | */ | |
336 | goto error; | |
337 | } | |
338 | ||
339 | rcu_read_lock(); | |
340 | socket = consumer_find_socket(data->cmd_sock, output); | |
341 | rcu_read_unlock(); | |
342 | if (socket == NULL) { | |
4ce514c4 | 343 | socket = consumer_allocate_socket(&data->cmd_sock); |
a4b92340 DG |
344 | if (socket == NULL) { |
345 | ret = -1; | |
346 | goto error; | |
347 | } | |
348 | ||
2f77fc4b | 349 | socket->registered = 0; |
a4b92340 DG |
350 | socket->lock = &data->lock; |
351 | rcu_read_lock(); | |
352 | consumer_add_socket(socket, output); | |
353 | rcu_read_unlock(); | |
354 | } | |
355 | ||
6dc3064a DG |
356 | socket->type = data->type; |
357 | ||
a4b92340 DG |
358 | DBG3("Consumer socket created (fd: %d) and added to output", |
359 | data->cmd_sock); | |
360 | ||
361 | error: | |
362 | return ret; | |
363 | } | |
364 | ||
7972aab2 DG |
365 | /* |
366 | * Return the consumer socket from the given consumer output with the right | |
367 | * bitness. On error, returns NULL. | |
368 | * | |
369 | * The caller MUST acquire a rcu read side lock and keep it until the socket | |
370 | * object reference is not needed anymore. | |
371 | */ | |
372 | struct consumer_socket *consumer_find_socket_by_bitness(int bits, | |
348a81dc | 373 | const struct consumer_output *consumer) |
7972aab2 DG |
374 | { |
375 | int consumer_fd; | |
376 | struct consumer_socket *socket = NULL; | |
377 | ||
378 | switch (bits) { | |
379 | case 64: | |
380 | consumer_fd = uatomic_read(&ust_consumerd64_fd); | |
381 | break; | |
382 | case 32: | |
383 | consumer_fd = uatomic_read(&ust_consumerd32_fd); | |
384 | break; | |
385 | default: | |
386 | assert(0); | |
387 | goto end; | |
388 | } | |
389 | ||
390 | socket = consumer_find_socket(consumer_fd, consumer); | |
391 | if (!socket) { | |
392 | ERR("Consumer socket fd %d not found in consumer obj %p", | |
393 | consumer_fd, consumer); | |
394 | } | |
395 | ||
396 | end: | |
397 | return socket; | |
398 | } | |
399 | ||
173af62f DG |
400 | /* |
401 | * Find a consumer_socket in a consumer_output hashtable. Read side lock must | |
402 | * be acquired before calling this function and across use of the | |
403 | * returned consumer_socket. | |
404 | */ | |
405 | struct consumer_socket *consumer_find_socket(int key, | |
348a81dc | 406 | const struct consumer_output *consumer) |
173af62f DG |
407 | { |
408 | struct lttng_ht_iter iter; | |
409 | struct lttng_ht_node_ulong *node; | |
410 | struct consumer_socket *socket = NULL; | |
411 | ||
412 | /* Negative keys are lookup failures */ | |
a4b92340 | 413 | if (key < 0 || consumer == NULL) { |
173af62f DG |
414 | return NULL; |
415 | } | |
416 | ||
417 | lttng_ht_lookup(consumer->socks, (void *)((unsigned long) key), | |
418 | &iter); | |
419 | node = lttng_ht_iter_get_node_ulong(&iter); | |
420 | if (node != NULL) { | |
421 | socket = caa_container_of(node, struct consumer_socket, node); | |
422 | } | |
423 | ||
424 | return socket; | |
425 | } | |
426 | ||
427 | /* | |
428 | * Allocate a new consumer_socket and return the pointer. | |
429 | */ | |
4ce514c4 | 430 | struct consumer_socket *consumer_allocate_socket(int *fd) |
173af62f DG |
431 | { |
432 | struct consumer_socket *socket = NULL; | |
433 | ||
4ce514c4 DG |
434 | assert(fd); |
435 | ||
173af62f DG |
436 | socket = zmalloc(sizeof(struct consumer_socket)); |
437 | if (socket == NULL) { | |
438 | PERROR("zmalloc consumer socket"); | |
439 | goto error; | |
440 | } | |
441 | ||
9363801e | 442 | socket->fd_ptr = fd; |
4ce514c4 | 443 | lttng_ht_node_init_ulong(&socket->node, *fd); |
173af62f DG |
444 | |
445 | error: | |
446 | return socket; | |
447 | } | |
448 | ||
449 | /* | |
450 | * Add consumer socket to consumer output object. Read side lock must be | |
451 | * acquired before calling this function. | |
452 | */ | |
453 | void consumer_add_socket(struct consumer_socket *sock, | |
454 | struct consumer_output *consumer) | |
455 | { | |
456 | assert(sock); | |
457 | assert(consumer); | |
458 | ||
459 | lttng_ht_add_unique_ulong(consumer->socks, &sock->node); | |
460 | } | |
461 | ||
462 | /* | |
348a81dc | 463 | * Delete consumer socket to consumer output object. Read side lock must be |
173af62f DG |
464 | * acquired before calling this function. |
465 | */ | |
466 | void consumer_del_socket(struct consumer_socket *sock, | |
467 | struct consumer_output *consumer) | |
468 | { | |
469 | int ret; | |
470 | struct lttng_ht_iter iter; | |
471 | ||
472 | assert(sock); | |
473 | assert(consumer); | |
474 | ||
475 | iter.iter.node = &sock->node.node; | |
476 | ret = lttng_ht_del(consumer->socks, &iter); | |
477 | assert(!ret); | |
478 | } | |
479 | ||
480 | /* | |
481 | * RCU destroy call function. | |
482 | */ | |
483 | static void destroy_socket_rcu(struct rcu_head *head) | |
484 | { | |
485 | struct lttng_ht_node_ulong *node = | |
486 | caa_container_of(head, struct lttng_ht_node_ulong, head); | |
487 | struct consumer_socket *socket = | |
488 | caa_container_of(node, struct consumer_socket, node); | |
489 | ||
490 | free(socket); | |
491 | } | |
492 | ||
493 | /* | |
494 | * Destroy and free socket pointer in a call RCU. Read side lock must be | |
495 | * acquired before calling this function. | |
496 | */ | |
497 | void consumer_destroy_socket(struct consumer_socket *sock) | |
498 | { | |
499 | assert(sock); | |
500 | ||
501 | /* | |
502 | * We DO NOT close the file descriptor here since it is global to the | |
2f77fc4b DG |
503 | * session daemon and is closed only if the consumer dies or a custom |
504 | * consumer was registered, | |
173af62f | 505 | */ |
2f77fc4b | 506 | if (sock->registered) { |
9363801e DG |
507 | DBG3("Consumer socket was registered. Closing fd %d", *sock->fd_ptr); |
508 | lttcomm_close_unix_sock(*sock->fd_ptr); | |
2f77fc4b | 509 | } |
173af62f DG |
510 | |
511 | call_rcu(&sock->node.head, destroy_socket_rcu); | |
512 | } | |
513 | ||
00e2e675 DG |
514 | /* |
515 | * Allocate and assign data to a consumer_output object. | |
516 | * | |
517 | * Return pointer to structure. | |
518 | */ | |
519 | struct consumer_output *consumer_create_output(enum consumer_dst_type type) | |
520 | { | |
521 | struct consumer_output *output = NULL; | |
522 | ||
523 | output = zmalloc(sizeof(struct consumer_output)); | |
524 | if (output == NULL) { | |
525 | PERROR("zmalloc consumer_output"); | |
526 | goto error; | |
527 | } | |
528 | ||
529 | /* By default, consumer output is enabled */ | |
530 | output->enabled = 1; | |
531 | output->type = type; | |
d88aee68 | 532 | output->net_seq_index = (uint64_t) -1ULL; |
6addfa37 | 533 | urcu_ref_init(&output->ref); |
173af62f DG |
534 | |
535 | output->socks = lttng_ht_new(0, LTTNG_HT_TYPE_ULONG); | |
00e2e675 DG |
536 | |
537 | error: | |
538 | return output; | |
539 | } | |
540 | ||
af706bb7 DG |
541 | /* |
542 | * Iterate over the consumer output socket hash table and destroy them. The | |
543 | * socket file descriptor are only closed if the consumer output was | |
544 | * registered meaning it's an external consumer. | |
545 | */ | |
546 | void consumer_destroy_output_sockets(struct consumer_output *obj) | |
547 | { | |
548 | struct lttng_ht_iter iter; | |
549 | struct consumer_socket *socket; | |
550 | ||
551 | if (!obj->socks) { | |
552 | return; | |
553 | } | |
554 | ||
555 | rcu_read_lock(); | |
556 | cds_lfht_for_each_entry(obj->socks->ht, &iter.iter, socket, node.node) { | |
557 | consumer_del_socket(socket, obj); | |
558 | consumer_destroy_socket(socket); | |
559 | } | |
560 | rcu_read_unlock(); | |
561 | } | |
562 | ||
00e2e675 DG |
563 | /* |
564 | * Delete the consumer_output object from the list and free the ptr. | |
36b588ed MD |
565 | * |
566 | * Should *NOT* be called with RCU read-side lock held. | |
00e2e675 | 567 | */ |
6addfa37 | 568 | static void consumer_release_output(struct urcu_ref *ref) |
00e2e675 | 569 | { |
6addfa37 MD |
570 | struct consumer_output *obj = |
571 | caa_container_of(ref, struct consumer_output, ref); | |
00e2e675 | 572 | |
af706bb7 | 573 | consumer_destroy_output_sockets(obj); |
2f77fc4b | 574 | |
af706bb7 | 575 | if (obj->socks) { |
2f77fc4b | 576 | /* Finally destroy HT */ |
0b2dc8df | 577 | ht_cleanup_push(obj->socks); |
00e2e675 | 578 | } |
173af62f | 579 | |
00e2e675 DG |
580 | free(obj); |
581 | } | |
582 | ||
6addfa37 MD |
583 | /* |
584 | * Get the consumer_output object. | |
585 | */ | |
586 | void consumer_output_get(struct consumer_output *obj) | |
587 | { | |
588 | urcu_ref_get(&obj->ref); | |
589 | } | |
590 | ||
591 | /* | |
592 | * Put the consumer_output object. | |
593 | * | |
594 | * Should *NOT* be called with RCU read-side lock held. | |
595 | */ | |
596 | void consumer_output_put(struct consumer_output *obj) | |
597 | { | |
598 | if (!obj) { | |
599 | return; | |
600 | } | |
601 | urcu_ref_put(&obj->ref, consumer_release_output); | |
602 | } | |
603 | ||
00e2e675 DG |
604 | /* |
605 | * Copy consumer output and returned the newly allocated copy. | |
36b588ed MD |
606 | * |
607 | * Should *NOT* be called with RCU read-side lock held. | |
00e2e675 | 608 | */ |
b178f53e | 609 | struct consumer_output *consumer_copy_output(struct consumer_output *src) |
00e2e675 | 610 | { |
6dc3064a | 611 | int ret; |
00e2e675 DG |
612 | struct consumer_output *output; |
613 | ||
b178f53e | 614 | assert(src); |
00e2e675 | 615 | |
b178f53e | 616 | output = consumer_create_output(src->type); |
00e2e675 | 617 | if (output == NULL) { |
6addfa37 | 618 | goto end; |
00e2e675 | 619 | } |
b178f53e JG |
620 | output->enabled = src->enabled; |
621 | output->net_seq_index = src->net_seq_index; | |
622 | memcpy(output->domain_subdir, src->domain_subdir, | |
623 | sizeof(output->domain_subdir)); | |
624 | output->snapshot = src->snapshot; | |
625 | output->relay_major_version = src->relay_major_version; | |
626 | output->relay_minor_version = src->relay_minor_version; | |
627 | memcpy(&output->dst, &src->dst, sizeof(output->dst)); | |
628 | ret = consumer_copy_sockets(output, src); | |
6dc3064a | 629 | if (ret < 0) { |
6addfa37 | 630 | goto error_put; |
6dc3064a | 631 | } |
6addfa37 | 632 | end: |
6dc3064a DG |
633 | return output; |
634 | ||
6addfa37 MD |
635 | error_put: |
636 | consumer_output_put(output); | |
6dc3064a DG |
637 | return NULL; |
638 | } | |
639 | ||
640 | /* | |
641 | * Copy consumer sockets from src to dst. | |
642 | * | |
643 | * Return 0 on success or else a negative value. | |
644 | */ | |
645 | int consumer_copy_sockets(struct consumer_output *dst, | |
646 | struct consumer_output *src) | |
647 | { | |
648 | int ret = 0; | |
649 | struct lttng_ht_iter iter; | |
650 | struct consumer_socket *socket, *copy_sock; | |
651 | ||
652 | assert(dst); | |
653 | assert(src); | |
654 | ||
b82c5c4d | 655 | rcu_read_lock(); |
6dc3064a DG |
656 | cds_lfht_for_each_entry(src->socks->ht, &iter.iter, socket, node.node) { |
657 | /* Ignore socket that are already there. */ | |
9363801e | 658 | copy_sock = consumer_find_socket(*socket->fd_ptr, dst); |
6dc3064a DG |
659 | if (copy_sock) { |
660 | continue; | |
661 | } | |
662 | ||
173af62f | 663 | /* Create new socket object. */ |
9363801e | 664 | copy_sock = consumer_allocate_socket(socket->fd_ptr); |
173af62f | 665 | if (copy_sock == NULL) { |
b82c5c4d | 666 | rcu_read_unlock(); |
6dc3064a DG |
667 | ret = -ENOMEM; |
668 | goto error; | |
173af62f DG |
669 | } |
670 | ||
09a90bcd | 671 | copy_sock->registered = socket->registered; |
6dc3064a DG |
672 | /* |
673 | * This is valid because this lock is shared accross all consumer | |
674 | * object being the global lock of the consumer data structure of the | |
675 | * session daemon. | |
676 | */ | |
173af62f | 677 | copy_sock->lock = socket->lock; |
6dc3064a | 678 | consumer_add_socket(copy_sock, dst); |
173af62f | 679 | } |
b82c5c4d | 680 | rcu_read_unlock(); |
173af62f | 681 | |
00e2e675 | 682 | error: |
6dc3064a | 683 | return ret; |
00e2e675 DG |
684 | } |
685 | ||
686 | /* | |
b178f53e | 687 | * Set network URI to the consumer output. |
00e2e675 | 688 | * |
ad20f474 DG |
689 | * Return 0 on success. Return 1 if the URI were equal. Else, negative value on |
690 | * error. | |
00e2e675 | 691 | */ |
b178f53e JG |
692 | int consumer_set_network_uri(const struct ltt_session *session, |
693 | struct consumer_output *output, | |
00e2e675 DG |
694 | struct lttng_uri *uri) |
695 | { | |
696 | int ret; | |
00e2e675 DG |
697 | struct lttng_uri *dst_uri = NULL; |
698 | ||
699 | /* Code flow error safety net. */ | |
b178f53e | 700 | assert(output); |
00e2e675 DG |
701 | assert(uri); |
702 | ||
703 | switch (uri->stype) { | |
704 | case LTTNG_STREAM_CONTROL: | |
b178f53e JG |
705 | dst_uri = &output->dst.net.control; |
706 | output->dst.net.control_isset = 1; | |
00e2e675 DG |
707 | if (uri->port == 0) { |
708 | /* Assign default port. */ | |
709 | uri->port = DEFAULT_NETWORK_CONTROL_PORT; | |
a74934ba | 710 | } else { |
b178f53e JG |
711 | if (output->dst.net.data_isset && uri->port == |
712 | output->dst.net.data.port) { | |
a74934ba DG |
713 | ret = -LTTNG_ERR_INVALID; |
714 | goto error; | |
715 | } | |
00e2e675 | 716 | } |
ad20f474 | 717 | DBG3("Consumer control URI set with port %d", uri->port); |
00e2e675 DG |
718 | break; |
719 | case LTTNG_STREAM_DATA: | |
b178f53e JG |
720 | dst_uri = &output->dst.net.data; |
721 | output->dst.net.data_isset = 1; | |
00e2e675 DG |
722 | if (uri->port == 0) { |
723 | /* Assign default port. */ | |
724 | uri->port = DEFAULT_NETWORK_DATA_PORT; | |
a74934ba | 725 | } else { |
b178f53e JG |
726 | if (output->dst.net.control_isset && uri->port == |
727 | output->dst.net.control.port) { | |
a74934ba DG |
728 | ret = -LTTNG_ERR_INVALID; |
729 | goto error; | |
730 | } | |
00e2e675 | 731 | } |
ad20f474 | 732 | DBG3("Consumer data URI set with port %d", uri->port); |
00e2e675 DG |
733 | break; |
734 | default: | |
735 | ERR("Set network uri type unknown %d", uri->stype); | |
a74934ba | 736 | ret = -LTTNG_ERR_INVALID; |
00e2e675 DG |
737 | goto error; |
738 | } | |
739 | ||
740 | ret = uri_compare(dst_uri, uri); | |
741 | if (!ret) { | |
742 | /* Same URI, don't touch it and return success. */ | |
743 | DBG3("URI network compare are the same"); | |
ad20f474 | 744 | goto equal; |
00e2e675 DG |
745 | } |
746 | ||
747 | /* URIs were not equal, replacing it. */ | |
00e2e675 | 748 | memcpy(dst_uri, uri, sizeof(struct lttng_uri)); |
b178f53e JG |
749 | output->type = CONSUMER_DST_NET; |
750 | if (dst_uri->stype != LTTNG_STREAM_CONTROL) { | |
751 | /* Only the control uri needs to contain the path. */ | |
752 | goto end; | |
753 | } | |
00e2e675 | 754 | |
b178f53e JG |
755 | /* |
756 | * If the user has specified a subdir as part of the control | |
757 | * URL, the session's base output directory is: | |
758 | * /RELAYD_OUTPUT_PATH/HOSTNAME/USER_SPECIFIED_DIR | |
759 | * | |
760 | * Hence, the "base_dir" from which all stream files and | |
761 | * session rotation chunks are created takes the form | |
762 | * /HOSTNAME/USER_SPECIFIED_DIR | |
763 | * | |
764 | * If the user has not specified an output directory as part of | |
765 | * the control URL, the base output directory has the form: | |
766 | * /RELAYD_OUTPUT_PATH/HOSTNAME/SESSION_NAME-CREATION_TIME | |
767 | * | |
768 | * Hence, the "base_dir" from which all stream files and | |
769 | * session rotation chunks are created takes the form | |
770 | * /HOSTNAME/SESSION_NAME-CREATION_TIME | |
771 | * | |
772 | * Note that automatically generated session names already | |
773 | * contain the session's creation time. In that case, the | |
774 | * creation time is omitted to prevent it from being duplicated | |
775 | * in the final directory hierarchy. | |
776 | */ | |
777 | if (*uri->subdir) { | |
778 | if (strstr(uri->subdir, "../")) { | |
779 | ERR("Network URI subdirs are not allowed to walk up the path hierarchy"); | |
780 | ret = -LTTNG_ERR_INVALID; | |
00e2e675 DG |
781 | goto error; |
782 | } | |
b178f53e JG |
783 | ret = snprintf(output->dst.net.base_dir, |
784 | sizeof(output->dst.net.base_dir), | |
785 | "/%s/%s/", session->hostname, uri->subdir); | |
786 | } else { | |
787 | if (session->has_auto_generated_name) { | |
788 | ret = snprintf(output->dst.net.base_dir, | |
789 | sizeof(output->dst.net.base_dir), | |
790 | "/%s/%s/", session->hostname, | |
791 | session->name); | |
792 | } else { | |
793 | char session_creation_datetime[16]; | |
794 | size_t strftime_ret; | |
795 | struct tm *timeinfo; | |
00e2e675 | 796 | |
b178f53e JG |
797 | timeinfo = localtime(&session->creation_time); |
798 | if (!timeinfo) { | |
799 | ret = -LTTNG_ERR_FATAL; | |
800 | goto error; | |
801 | } | |
802 | strftime_ret = strftime(session_creation_datetime, | |
803 | sizeof(session_creation_datetime), | |
804 | "%Y%m%d-%H%M%S", timeinfo); | |
805 | if (strftime_ret == 0) { | |
806 | ERR("Failed to format session creation timestamp while setting network URI"); | |
807 | ret = -LTTNG_ERR_FATAL; | |
808 | goto error; | |
809 | } | |
810 | ret = snprintf(output->dst.net.base_dir, | |
811 | sizeof(output->dst.net.base_dir), | |
812 | "/%s/%s-%s/", session->hostname, | |
813 | session->name, | |
814 | session_creation_datetime); | |
bfc6eff0 | 815 | } |
00e2e675 | 816 | } |
b178f53e JG |
817 | if (ret >= sizeof(output->dst.net.base_dir)) { |
818 | ret = -LTTNG_ERR_INVALID; | |
819 | ERR("Truncation occurred while setting network output base directory"); | |
820 | goto error; | |
821 | } else if (ret == -1) { | |
822 | ret = -LTTNG_ERR_INVALID; | |
823 | PERROR("Error occurred while setting network output base directory"); | |
824 | goto error; | |
825 | } | |
826 | ||
827 | DBG3("Consumer set network uri base_dir path %s", | |
828 | output->dst.net.base_dir); | |
00e2e675 | 829 | |
b178f53e | 830 | end: |
00e2e675 | 831 | return 0; |
ad20f474 DG |
832 | equal: |
833 | return 1; | |
00e2e675 | 834 | error: |
a74934ba | 835 | return ret; |
00e2e675 DG |
836 | } |
837 | ||
838 | /* | |
839 | * Send file descriptor to consumer via sock. | |
9a318688 JG |
840 | * |
841 | * The consumer socket lock must be held by the caller. | |
00e2e675 | 842 | */ |
ac2f30af JG |
843 | int consumer_send_fds(struct consumer_socket *sock, const int *fds, |
844 | size_t nb_fd) | |
00e2e675 DG |
845 | { |
846 | int ret; | |
847 | ||
848 | assert(fds); | |
f50f23d9 | 849 | assert(sock); |
00e2e675 | 850 | assert(nb_fd > 0); |
05dac598 | 851 | assert(pthread_mutex_trylock(sock->lock) == EBUSY); |
00e2e675 | 852 | |
9363801e | 853 | ret = lttcomm_send_fds_unix_sock(*sock->fd_ptr, fds, nb_fd); |
00e2e675 | 854 | if (ret < 0) { |
3448e266 | 855 | /* The above call will print a PERROR on error. */ |
9363801e | 856 | DBG("Error when sending consumer fds on sock %d", *sock->fd_ptr); |
00e2e675 DG |
857 | goto error; |
858 | } | |
859 | ||
f50f23d9 | 860 | ret = consumer_recv_status_reply(sock); |
00e2e675 DG |
861 | error: |
862 | return ret; | |
863 | } | |
864 | ||
ffe60014 DG |
865 | /* |
866 | * Consumer send communication message structure to consumer. | |
9a318688 JG |
867 | * |
868 | * The consumer socket lock must be held by the caller. | |
ffe60014 DG |
869 | */ |
870 | int consumer_send_msg(struct consumer_socket *sock, | |
871 | struct lttcomm_consumer_msg *msg) | |
872 | { | |
873 | int ret; | |
874 | ||
875 | assert(msg); | |
876 | assert(sock); | |
211b734b | 877 | assert(pthread_mutex_trylock(sock->lock) == EBUSY); |
ffe60014 | 878 | |
52898cb1 | 879 | ret = consumer_socket_send(sock, msg, sizeof(struct lttcomm_consumer_msg)); |
ffe60014 | 880 | if (ret < 0) { |
ffe60014 DG |
881 | goto error; |
882 | } | |
883 | ||
884 | ret = consumer_recv_status_reply(sock); | |
885 | ||
886 | error: | |
887 | return ret; | |
888 | } | |
889 | ||
00e2e675 DG |
890 | /* |
891 | * Consumer send channel communication message structure to consumer. | |
9a318688 JG |
892 | * |
893 | * The consumer socket lock must be held by the caller. | |
00e2e675 | 894 | */ |
f50f23d9 DG |
895 | int consumer_send_channel(struct consumer_socket *sock, |
896 | struct lttcomm_consumer_msg *msg) | |
00e2e675 DG |
897 | { |
898 | int ret; | |
899 | ||
900 | assert(msg); | |
f50f23d9 | 901 | assert(sock); |
00e2e675 | 902 | |
52898cb1 | 903 | ret = consumer_send_msg(sock, msg); |
00e2e675 | 904 | if (ret < 0) { |
00e2e675 DG |
905 | goto error; |
906 | } | |
907 | ||
908 | error: | |
909 | return ret; | |
910 | } | |
911 | ||
ffe60014 DG |
912 | /* |
913 | * Populate the given consumer msg structure with the ask_channel command | |
914 | * information. | |
915 | */ | |
916 | void consumer_init_ask_channel_comm_msg(struct lttcomm_consumer_msg *msg, | |
917 | uint64_t subbuf_size, | |
918 | uint64_t num_subbuf, | |
919 | int overwrite, | |
920 | unsigned int switch_timer_interval, | |
921 | unsigned int read_timer_interval, | |
ecc48a90 | 922 | unsigned int live_timer_interval, |
e9404c27 | 923 | unsigned int monitor_timer_interval, |
ffe60014 DG |
924 | int output, |
925 | int type, | |
926 | uint64_t session_id, | |
927 | const char *pathname, | |
928 | const char *name, | |
d88aee68 DG |
929 | uint64_t relayd_id, |
930 | uint64_t key, | |
7972aab2 | 931 | unsigned char *uuid, |
1624d5b7 JD |
932 | uint32_t chan_id, |
933 | uint64_t tracefile_size, | |
2bba9e53 | 934 | uint64_t tracefile_count, |
1950109e | 935 | uint64_t session_id_per_pid, |
567eb353 | 936 | unsigned int monitor, |
d7ba1388 | 937 | uint32_t ust_app_uid, |
491d1539 | 938 | int64_t blocking_timeout, |
3d071855 | 939 | const char *root_shm_path, |
e098433c | 940 | const char *shm_path, |
1b0bebcb JG |
941 | struct lttng_trace_chunk *trace_chunk, |
942 | const struct lttng_credentials *buffer_credentials) | |
ffe60014 DG |
943 | { |
944 | assert(msg); | |
945 | ||
d2956687 | 946 | /* Zeroed structure */ |
ffe60014 | 947 | memset(msg, 0, sizeof(struct lttcomm_consumer_msg)); |
d2956687 JG |
948 | msg->u.ask_channel.buffer_credentials.uid = UINT32_MAX; |
949 | msg->u.ask_channel.buffer_credentials.gid = UINT32_MAX; | |
950 | ||
d2956687 JG |
951 | if (trace_chunk) { |
952 | uint64_t chunk_id; | |
953 | enum lttng_trace_chunk_status chunk_status; | |
d2956687 JG |
954 | |
955 | chunk_status = lttng_trace_chunk_get_id(trace_chunk, &chunk_id); | |
956 | assert(chunk_status == LTTNG_TRACE_CHUNK_STATUS_OK); | |
957 | LTTNG_OPTIONAL_SET(&msg->u.ask_channel.chunk_id, chunk_id); | |
d2956687 | 958 | } |
1b0bebcb JG |
959 | msg->u.ask_channel.buffer_credentials.uid = buffer_credentials->uid; |
960 | msg->u.ask_channel.buffer_credentials.gid = buffer_credentials->gid; | |
ffe60014 DG |
961 | |
962 | msg->cmd_type = LTTNG_CONSUMER_ASK_CHANNEL_CREATION; | |
963 | msg->u.ask_channel.subbuf_size = subbuf_size; | |
964 | msg->u.ask_channel.num_subbuf = num_subbuf ; | |
965 | msg->u.ask_channel.overwrite = overwrite; | |
966 | msg->u.ask_channel.switch_timer_interval = switch_timer_interval; | |
967 | msg->u.ask_channel.read_timer_interval = read_timer_interval; | |
ecc48a90 | 968 | msg->u.ask_channel.live_timer_interval = live_timer_interval; |
e9404c27 | 969 | msg->u.ask_channel.monitor_timer_interval = monitor_timer_interval; |
ffe60014 DG |
970 | msg->u.ask_channel.output = output; |
971 | msg->u.ask_channel.type = type; | |
972 | msg->u.ask_channel.session_id = session_id; | |
1950109e | 973 | msg->u.ask_channel.session_id_per_pid = session_id_per_pid; |
ffe60014 DG |
974 | msg->u.ask_channel.relayd_id = relayd_id; |
975 | msg->u.ask_channel.key = key; | |
7972aab2 | 976 | msg->u.ask_channel.chan_id = chan_id; |
1624d5b7 JD |
977 | msg->u.ask_channel.tracefile_size = tracefile_size; |
978 | msg->u.ask_channel.tracefile_count = tracefile_count; | |
2bba9e53 | 979 | msg->u.ask_channel.monitor = monitor; |
567eb353 | 980 | msg->u.ask_channel.ust_app_uid = ust_app_uid; |
491d1539 | 981 | msg->u.ask_channel.blocking_timeout = blocking_timeout; |
ffe60014 DG |
982 | |
983 | memcpy(msg->u.ask_channel.uuid, uuid, sizeof(msg->u.ask_channel.uuid)); | |
984 | ||
10a50311 JD |
985 | if (pathname) { |
986 | strncpy(msg->u.ask_channel.pathname, pathname, | |
987 | sizeof(msg->u.ask_channel.pathname)); | |
988 | msg->u.ask_channel.pathname[sizeof(msg->u.ask_channel.pathname)-1] = '\0'; | |
989 | } | |
ffe60014 DG |
990 | |
991 | strncpy(msg->u.ask_channel.name, name, sizeof(msg->u.ask_channel.name)); | |
992 | msg->u.ask_channel.name[sizeof(msg->u.ask_channel.name) - 1] = '\0'; | |
d7ba1388 | 993 | |
3d071855 MD |
994 | if (root_shm_path) { |
995 | strncpy(msg->u.ask_channel.root_shm_path, root_shm_path, | |
996 | sizeof(msg->u.ask_channel.root_shm_path)); | |
997 | msg->u.ask_channel.root_shm_path[sizeof(msg->u.ask_channel.root_shm_path) - 1] = '\0'; | |
998 | } | |
d7ba1388 MD |
999 | if (shm_path) { |
1000 | strncpy(msg->u.ask_channel.shm_path, shm_path, | |
1001 | sizeof(msg->u.ask_channel.shm_path)); | |
1002 | msg->u.ask_channel.shm_path[sizeof(msg->u.ask_channel.shm_path) - 1] = '\0'; | |
1003 | } | |
ffe60014 DG |
1004 | } |
1005 | ||
00e2e675 DG |
1006 | /* |
1007 | * Init channel communication message structure. | |
1008 | */ | |
638e7b4e | 1009 | void consumer_init_add_channel_comm_msg(struct lttcomm_consumer_msg *msg, |
d88aee68 | 1010 | uint64_t channel_key, |
ffe60014 DG |
1011 | uint64_t session_id, |
1012 | const char *pathname, | |
1013 | uid_t uid, | |
1014 | gid_t gid, | |
d88aee68 | 1015 | uint64_t relayd_id, |
c30aaa51 | 1016 | const char *name, |
ffe60014 DG |
1017 | unsigned int nb_init_streams, |
1018 | enum lttng_event_output output, | |
1624d5b7 JD |
1019 | int type, |
1020 | uint64_t tracefile_size, | |
2bba9e53 | 1021 | uint64_t tracefile_count, |
ecc48a90 | 1022 | unsigned int monitor, |
e9404c27 | 1023 | unsigned int live_timer_interval, |
d2956687 JG |
1024 | unsigned int monitor_timer_interval, |
1025 | struct lttng_trace_chunk *trace_chunk) | |
00e2e675 DG |
1026 | { |
1027 | assert(msg); | |
1028 | ||
00e2e675 DG |
1029 | /* Zeroed structure */ |
1030 | memset(msg, 0, sizeof(struct lttcomm_consumer_msg)); | |
1031 | ||
d2956687 JG |
1032 | if (trace_chunk) { |
1033 | uint64_t chunk_id; | |
1034 | enum lttng_trace_chunk_status chunk_status; | |
1035 | ||
1036 | chunk_status = lttng_trace_chunk_get_id(trace_chunk, &chunk_id); | |
1037 | assert(chunk_status == LTTNG_TRACE_CHUNK_STATUS_OK); | |
1038 | LTTNG_OPTIONAL_SET(&msg->u.channel.chunk_id, chunk_id); | |
1039 | } | |
1040 | ||
00e2e675 | 1041 | /* Send channel */ |
638e7b4e | 1042 | msg->cmd_type = LTTNG_CONSUMER_ADD_CHANNEL; |
00e2e675 | 1043 | msg->u.channel.channel_key = channel_key; |
ffe60014 | 1044 | msg->u.channel.session_id = session_id; |
ffe60014 | 1045 | msg->u.channel.relayd_id = relayd_id; |
c30aaa51 | 1046 | msg->u.channel.nb_init_streams = nb_init_streams; |
ffe60014 DG |
1047 | msg->u.channel.output = output; |
1048 | msg->u.channel.type = type; | |
1624d5b7 JD |
1049 | msg->u.channel.tracefile_size = tracefile_size; |
1050 | msg->u.channel.tracefile_count = tracefile_count; | |
2bba9e53 | 1051 | msg->u.channel.monitor = monitor; |
ecc48a90 | 1052 | msg->u.channel.live_timer_interval = live_timer_interval; |
e9404c27 | 1053 | msg->u.channel.monitor_timer_interval = monitor_timer_interval; |
ffe60014 DG |
1054 | |
1055 | strncpy(msg->u.channel.pathname, pathname, | |
1056 | sizeof(msg->u.channel.pathname)); | |
1057 | msg->u.channel.pathname[sizeof(msg->u.channel.pathname) - 1] = '\0'; | |
1058 | ||
1059 | strncpy(msg->u.channel.name, name, sizeof(msg->u.channel.name)); | |
1060 | msg->u.channel.name[sizeof(msg->u.channel.name) - 1] = '\0'; | |
00e2e675 DG |
1061 | } |
1062 | ||
1063 | /* | |
1064 | * Init stream communication message structure. | |
1065 | */ | |
e098433c | 1066 | void consumer_init_add_stream_comm_msg(struct lttcomm_consumer_msg *msg, |
d88aee68 DG |
1067 | uint64_t channel_key, |
1068 | uint64_t stream_key, | |
d2956687 | 1069 | int32_t cpu) |
00e2e675 DG |
1070 | { |
1071 | assert(msg); | |
1072 | ||
1073 | memset(msg, 0, sizeof(struct lttcomm_consumer_msg)); | |
1074 | ||
e098433c | 1075 | msg->cmd_type = LTTNG_CONSUMER_ADD_STREAM; |
00e2e675 DG |
1076 | msg->u.stream.channel_key = channel_key; |
1077 | msg->u.stream.stream_key = stream_key; | |
ffe60014 | 1078 | msg->u.stream.cpu = cpu; |
00e2e675 DG |
1079 | } |
1080 | ||
a4baae1b JD |
1081 | void consumer_init_streams_sent_comm_msg(struct lttcomm_consumer_msg *msg, |
1082 | enum lttng_consumer_command cmd, | |
1083 | uint64_t channel_key, uint64_t net_seq_idx) | |
1084 | { | |
1085 | assert(msg); | |
1086 | ||
1087 | memset(msg, 0, sizeof(struct lttcomm_consumer_msg)); | |
1088 | ||
1089 | msg->cmd_type = cmd; | |
1090 | msg->u.sent_streams.channel_key = channel_key; | |
1091 | msg->u.sent_streams.net_seq_idx = net_seq_idx; | |
1092 | } | |
1093 | ||
00e2e675 DG |
1094 | /* |
1095 | * Send stream communication structure to the consumer. | |
1096 | */ | |
f50f23d9 DG |
1097 | int consumer_send_stream(struct consumer_socket *sock, |
1098 | struct consumer_output *dst, struct lttcomm_consumer_msg *msg, | |
ac2f30af | 1099 | const int *fds, size_t nb_fd) |
00e2e675 DG |
1100 | { |
1101 | int ret; | |
1102 | ||
1103 | assert(msg); | |
1104 | assert(dst); | |
f50f23d9 | 1105 | assert(sock); |
ffe60014 | 1106 | assert(fds); |
00e2e675 | 1107 | |
52898cb1 | 1108 | ret = consumer_send_msg(sock, msg); |
f50f23d9 DG |
1109 | if (ret < 0) { |
1110 | goto error; | |
1111 | } | |
1112 | ||
00e2e675 DG |
1113 | ret = consumer_send_fds(sock, fds, nb_fd); |
1114 | if (ret < 0) { | |
1115 | goto error; | |
1116 | } | |
1117 | ||
1118 | error: | |
1119 | return ret; | |
1120 | } | |
37278a1e DG |
1121 | |
1122 | /* | |
1123 | * Send relayd socket to consumer associated with a session name. | |
1124 | * | |
43fade62 JG |
1125 | * The consumer socket lock must be held by the caller. |
1126 | * | |
37278a1e DG |
1127 | * On success return positive value. On error, negative value. |
1128 | */ | |
f50f23d9 | 1129 | int consumer_send_relayd_socket(struct consumer_socket *consumer_sock, |
6151a90f | 1130 | struct lttcomm_relayd_sock *rsock, struct consumer_output *consumer, |
d3e2ba59 | 1131 | enum lttng_stream_type type, uint64_t session_id, |
fb9a95c4 | 1132 | const char *session_name, const char *hostname, |
6fa5fe7c | 1133 | const char *base_path, int session_live_timer, |
46ef2188 MD |
1134 | const uint64_t *current_chunk_id, time_t session_creation_time, |
1135 | bool session_name_contains_creation_time) | |
37278a1e DG |
1136 | { |
1137 | int ret; | |
1138 | struct lttcomm_consumer_msg msg; | |
1139 | ||
1140 | /* Code flow error. Safety net. */ | |
6151a90f | 1141 | assert(rsock); |
37278a1e | 1142 | assert(consumer); |
f50f23d9 | 1143 | assert(consumer_sock); |
37278a1e | 1144 | |
53efb85a | 1145 | memset(&msg, 0, sizeof(msg)); |
37278a1e DG |
1146 | /* Bail out if consumer is disabled */ |
1147 | if (!consumer->enabled) { | |
f73fabfd | 1148 | ret = LTTNG_OK; |
37278a1e DG |
1149 | goto error; |
1150 | } | |
1151 | ||
d3e2ba59 | 1152 | if (type == LTTNG_STREAM_CONTROL) { |
ecd1a12f MD |
1153 | char output_path[LTTNG_PATH_MAX] = {}; |
1154 | ||
d3e2ba59 JD |
1155 | ret = relayd_create_session(rsock, |
1156 | &msg.u.relayd_sock.relayd_session_id, | |
6fa5fe7c MD |
1157 | session_name, hostname, base_path, |
1158 | session_live_timer, | |
658f12fa | 1159 | consumer->snapshot, session_id, |
db1da059 | 1160 | sessiond_uuid, current_chunk_id, |
46ef2188 | 1161 | session_creation_time, |
ecd1a12f MD |
1162 | session_name_contains_creation_time, |
1163 | output_path); | |
d3e2ba59 JD |
1164 | if (ret < 0) { |
1165 | /* Close the control socket. */ | |
1166 | (void) relayd_close(rsock); | |
1167 | goto error; | |
1168 | } | |
ecd1a12f MD |
1169 | DBG("Created session on relay, output path reply: %s", |
1170 | output_path); | |
d3e2ba59 JD |
1171 | } |
1172 | ||
37278a1e DG |
1173 | msg.cmd_type = LTTNG_CONSUMER_ADD_RELAYD_SOCKET; |
1174 | /* | |
1175 | * Assign network consumer output index using the temporary consumer since | |
1176 | * this call should only be made from within a set_consumer_uri() function | |
1177 | * call in the session daemon. | |
1178 | */ | |
1179 | msg.u.relayd_sock.net_index = consumer->net_seq_index; | |
1180 | msg.u.relayd_sock.type = type; | |
46e6455f | 1181 | msg.u.relayd_sock.session_id = session_id; |
6151a90f | 1182 | memcpy(&msg.u.relayd_sock.sock, rsock, sizeof(msg.u.relayd_sock.sock)); |
37278a1e | 1183 | |
9363801e | 1184 | DBG3("Sending relayd sock info to consumer on %d", *consumer_sock->fd_ptr); |
52898cb1 | 1185 | ret = consumer_send_msg(consumer_sock, &msg); |
f50f23d9 DG |
1186 | if (ret < 0) { |
1187 | goto error; | |
1188 | } | |
1189 | ||
37278a1e | 1190 | DBG3("Sending relayd socket file descriptor to consumer"); |
6151a90f | 1191 | ret = consumer_send_fds(consumer_sock, &rsock->sock.fd, 1); |
37278a1e DG |
1192 | if (ret < 0) { |
1193 | goto error; | |
1194 | } | |
1195 | ||
1196 | DBG2("Consumer relayd socket sent"); | |
1197 | ||
1198 | error: | |
1199 | return ret; | |
1200 | } | |
173af62f | 1201 | |
62c43103 JD |
1202 | static |
1203 | int consumer_send_pipe(struct consumer_socket *consumer_sock, | |
1204 | enum lttng_consumer_command cmd, int pipe) | |
e9404c27 JG |
1205 | { |
1206 | int ret; | |
1207 | struct lttcomm_consumer_msg msg; | |
62c43103 JD |
1208 | const char *pipe_name; |
1209 | const char *command_name; | |
1210 | ||
1211 | switch (cmd) { | |
1212 | case LTTNG_CONSUMER_SET_CHANNEL_MONITOR_PIPE: | |
1213 | pipe_name = "channel monitor"; | |
1214 | command_name = "SET_CHANNEL_MONITOR_PIPE"; | |
1215 | break; | |
62c43103 JD |
1216 | default: |
1217 | ERR("Unexpected command received in %s (cmd = %d)", __func__, | |
1218 | (int) cmd); | |
1219 | abort(); | |
1220 | } | |
e9404c27 JG |
1221 | |
1222 | /* Code flow error. Safety net. */ | |
1223 | ||
1224 | memset(&msg, 0, sizeof(msg)); | |
62c43103 | 1225 | msg.cmd_type = cmd; |
e9404c27 | 1226 | |
3e4dc117 | 1227 | pthread_mutex_lock(consumer_sock->lock); |
62c43103 | 1228 | DBG3("Sending %s command to consumer", command_name); |
e9404c27 JG |
1229 | ret = consumer_send_msg(consumer_sock, &msg); |
1230 | if (ret < 0) { | |
1231 | goto error; | |
1232 | } | |
1233 | ||
62c43103 JD |
1234 | DBG3("Sending %s pipe %d to consumer on socket %d", |
1235 | pipe_name, | |
e9404c27 JG |
1236 | pipe, *consumer_sock->fd_ptr); |
1237 | ret = consumer_send_fds(consumer_sock, &pipe, 1); | |
1238 | if (ret < 0) { | |
1239 | goto error; | |
1240 | } | |
1241 | ||
62c43103 | 1242 | DBG2("%s pipe successfully sent", pipe_name); |
e9404c27 | 1243 | error: |
3e4dc117 | 1244 | pthread_mutex_unlock(consumer_sock->lock); |
e9404c27 JG |
1245 | return ret; |
1246 | } | |
1247 | ||
62c43103 JD |
1248 | int consumer_send_channel_monitor_pipe(struct consumer_socket *consumer_sock, |
1249 | int pipe) | |
1250 | { | |
1251 | return consumer_send_pipe(consumer_sock, | |
1252 | LTTNG_CONSUMER_SET_CHANNEL_MONITOR_PIPE, pipe); | |
1253 | } | |
1254 | ||
806e2684 | 1255 | /* |
5e280d77 MD |
1256 | * Ask the consumer if the data is pending for the specific session id. |
1257 | * Returns 1 if data is pending, 0 otherwise, or < 0 on error. | |
806e2684 | 1258 | */ |
d88aee68 | 1259 | int consumer_is_data_pending(uint64_t session_id, |
806e2684 DG |
1260 | struct consumer_output *consumer) |
1261 | { | |
1262 | int ret; | |
6d805429 | 1263 | int32_t ret_code = 0; /* Default is that the data is NOT pending */ |
806e2684 DG |
1264 | struct consumer_socket *socket; |
1265 | struct lttng_ht_iter iter; | |
1266 | struct lttcomm_consumer_msg msg; | |
1267 | ||
1268 | assert(consumer); | |
1269 | ||
53efb85a | 1270 | DBG3("Consumer data pending for id %" PRIu64, session_id); |
806e2684 | 1271 | |
53efb85a MD |
1272 | memset(&msg, 0, sizeof(msg)); |
1273 | msg.cmd_type = LTTNG_CONSUMER_DATA_PENDING; | |
d88aee68 | 1274 | msg.u.data_pending.session_id = session_id; |
806e2684 | 1275 | |
c8f59ee5 | 1276 | /* Send command for each consumer */ |
b82c5c4d | 1277 | rcu_read_lock(); |
806e2684 DG |
1278 | cds_lfht_for_each_entry(consumer->socks->ht, &iter.iter, socket, |
1279 | node.node) { | |
806e2684 | 1280 | pthread_mutex_lock(socket->lock); |
52898cb1 | 1281 | ret = consumer_socket_send(socket, &msg, sizeof(msg)); |
806e2684 | 1282 | if (ret < 0) { |
806e2684 | 1283 | pthread_mutex_unlock(socket->lock); |
b82c5c4d | 1284 | goto error_unlock; |
806e2684 DG |
1285 | } |
1286 | ||
f50f23d9 DG |
1287 | /* |
1288 | * No need for a recv reply status because the answer to the command is | |
1289 | * the reply status message. | |
1290 | */ | |
1291 | ||
52898cb1 DG |
1292 | ret = consumer_socket_recv(socket, &ret_code, sizeof(ret_code)); |
1293 | if (ret < 0) { | |
806e2684 | 1294 | pthread_mutex_unlock(socket->lock); |
b82c5c4d | 1295 | goto error_unlock; |
806e2684 | 1296 | } |
806e2684 DG |
1297 | pthread_mutex_unlock(socket->lock); |
1298 | ||
6d805429 | 1299 | if (ret_code == 1) { |
806e2684 DG |
1300 | break; |
1301 | } | |
1302 | } | |
b82c5c4d | 1303 | rcu_read_unlock(); |
806e2684 | 1304 | |
d88aee68 DG |
1305 | DBG("Consumer data is %s pending for session id %" PRIu64, |
1306 | ret_code == 1 ? "" : "NOT", session_id); | |
806e2684 DG |
1307 | return ret_code; |
1308 | ||
b82c5c4d DG |
1309 | error_unlock: |
1310 | rcu_read_unlock(); | |
806e2684 DG |
1311 | return -1; |
1312 | } | |
7972aab2 DG |
1313 | |
1314 | /* | |
1315 | * Send a flush command to consumer using the given channel key. | |
1316 | * | |
1317 | * Return 0 on success else a negative value. | |
1318 | */ | |
1319 | int consumer_flush_channel(struct consumer_socket *socket, uint64_t key) | |
1320 | { | |
1321 | int ret; | |
1322 | struct lttcomm_consumer_msg msg; | |
1323 | ||
1324 | assert(socket); | |
7972aab2 DG |
1325 | |
1326 | DBG2("Consumer flush channel key %" PRIu64, key); | |
1327 | ||
53efb85a | 1328 | memset(&msg, 0, sizeof(msg)); |
7972aab2 DG |
1329 | msg.cmd_type = LTTNG_CONSUMER_FLUSH_CHANNEL; |
1330 | msg.u.flush_channel.key = key; | |
1331 | ||
1332 | pthread_mutex_lock(socket->lock); | |
1333 | health_code_update(); | |
1334 | ||
1335 | ret = consumer_send_msg(socket, &msg); | |
1336 | if (ret < 0) { | |
1337 | goto end; | |
1338 | } | |
1339 | ||
1340 | end: | |
1341 | health_code_update(); | |
1342 | pthread_mutex_unlock(socket->lock); | |
1343 | return ret; | |
1344 | } | |
1345 | ||
0dd01979 MD |
1346 | /* |
1347 | * Send a clear quiescent command to consumer using the given channel key. | |
1348 | * | |
1349 | * Return 0 on success else a negative value. | |
1350 | */ | |
1351 | int consumer_clear_quiescent_channel(struct consumer_socket *socket, uint64_t key) | |
1352 | { | |
1353 | int ret; | |
1354 | struct lttcomm_consumer_msg msg; | |
1355 | ||
1356 | assert(socket); | |
1357 | ||
1358 | DBG2("Consumer clear quiescent channel key %" PRIu64, key); | |
1359 | ||
1360 | memset(&msg, 0, sizeof(msg)); | |
1361 | msg.cmd_type = LTTNG_CONSUMER_CLEAR_QUIESCENT_CHANNEL; | |
1362 | msg.u.clear_quiescent_channel.key = key; | |
1363 | ||
1364 | pthread_mutex_lock(socket->lock); | |
1365 | health_code_update(); | |
1366 | ||
1367 | ret = consumer_send_msg(socket, &msg); | |
1368 | if (ret < 0) { | |
1369 | goto end; | |
1370 | } | |
1371 | ||
1372 | end: | |
1373 | health_code_update(); | |
1374 | pthread_mutex_unlock(socket->lock); | |
1375 | return ret; | |
1376 | } | |
1377 | ||
7972aab2 | 1378 | /* |
dc2bbdae MD |
1379 | * Send a close metadata command to consumer using the given channel key. |
1380 | * Called with registry lock held. | |
7972aab2 DG |
1381 | * |
1382 | * Return 0 on success else a negative value. | |
1383 | */ | |
1384 | int consumer_close_metadata(struct consumer_socket *socket, | |
1385 | uint64_t metadata_key) | |
1386 | { | |
1387 | int ret; | |
1388 | struct lttcomm_consumer_msg msg; | |
1389 | ||
1390 | assert(socket); | |
7972aab2 DG |
1391 | |
1392 | DBG2("Consumer close metadata channel key %" PRIu64, metadata_key); | |
1393 | ||
53efb85a | 1394 | memset(&msg, 0, sizeof(msg)); |
7972aab2 DG |
1395 | msg.cmd_type = LTTNG_CONSUMER_CLOSE_METADATA; |
1396 | msg.u.close_metadata.key = metadata_key; | |
1397 | ||
1398 | pthread_mutex_lock(socket->lock); | |
1399 | health_code_update(); | |
1400 | ||
1401 | ret = consumer_send_msg(socket, &msg); | |
1402 | if (ret < 0) { | |
1403 | goto end; | |
1404 | } | |
1405 | ||
1406 | end: | |
1407 | health_code_update(); | |
1408 | pthread_mutex_unlock(socket->lock); | |
1409 | return ret; | |
1410 | } | |
1411 | ||
1412 | /* | |
1413 | * Send a setup metdata command to consumer using the given channel key. | |
1414 | * | |
1415 | * Return 0 on success else a negative value. | |
1416 | */ | |
1417 | int consumer_setup_metadata(struct consumer_socket *socket, | |
1418 | uint64_t metadata_key) | |
1419 | { | |
1420 | int ret; | |
1421 | struct lttcomm_consumer_msg msg; | |
1422 | ||
1423 | assert(socket); | |
7972aab2 DG |
1424 | |
1425 | DBG2("Consumer setup metadata channel key %" PRIu64, metadata_key); | |
1426 | ||
53efb85a | 1427 | memset(&msg, 0, sizeof(msg)); |
7972aab2 DG |
1428 | msg.cmd_type = LTTNG_CONSUMER_SETUP_METADATA; |
1429 | msg.u.setup_metadata.key = metadata_key; | |
1430 | ||
1431 | pthread_mutex_lock(socket->lock); | |
1432 | health_code_update(); | |
1433 | ||
1434 | ret = consumer_send_msg(socket, &msg); | |
1435 | if (ret < 0) { | |
1436 | goto end; | |
1437 | } | |
1438 | ||
1439 | end: | |
1440 | health_code_update(); | |
1441 | pthread_mutex_unlock(socket->lock); | |
1442 | return ret; | |
1443 | } | |
1444 | ||
1445 | /* | |
dc2bbdae MD |
1446 | * Send metadata string to consumer. |
1447 | * RCU read-side lock must be held to guarantee existence of socket. | |
7972aab2 DG |
1448 | * |
1449 | * Return 0 on success else a negative value. | |
1450 | */ | |
1451 | int consumer_push_metadata(struct consumer_socket *socket, | |
1452 | uint64_t metadata_key, char *metadata_str, size_t len, | |
93ec662e | 1453 | size_t target_offset, uint64_t version) |
7972aab2 DG |
1454 | { |
1455 | int ret; | |
1456 | struct lttcomm_consumer_msg msg; | |
1457 | ||
1458 | assert(socket); | |
7972aab2 | 1459 | |
9363801e | 1460 | DBG2("Consumer push metadata to consumer socket %d", *socket->fd_ptr); |
7972aab2 | 1461 | |
dc2bbdae MD |
1462 | pthread_mutex_lock(socket->lock); |
1463 | ||
53efb85a | 1464 | memset(&msg, 0, sizeof(msg)); |
7972aab2 DG |
1465 | msg.cmd_type = LTTNG_CONSUMER_PUSH_METADATA; |
1466 | msg.u.push_metadata.key = metadata_key; | |
1467 | msg.u.push_metadata.target_offset = target_offset; | |
1468 | msg.u.push_metadata.len = len; | |
93ec662e | 1469 | msg.u.push_metadata.version = version; |
7972aab2 | 1470 | |
7972aab2 DG |
1471 | health_code_update(); |
1472 | ret = consumer_send_msg(socket, &msg); | |
331744e3 | 1473 | if (ret < 0 || len == 0) { |
7972aab2 DG |
1474 | goto end; |
1475 | } | |
1476 | ||
9363801e DG |
1477 | DBG3("Consumer pushing metadata on sock %d of len %zu", *socket->fd_ptr, |
1478 | len); | |
7972aab2 | 1479 | |
52898cb1 | 1480 | ret = consumer_socket_send(socket, metadata_str, len); |
7972aab2 DG |
1481 | if (ret < 0) { |
1482 | goto end; | |
1483 | } | |
1484 | ||
1485 | health_code_update(); | |
1486 | ret = consumer_recv_status_reply(socket); | |
1487 | if (ret < 0) { | |
1488 | goto end; | |
1489 | } | |
1490 | ||
1491 | end: | |
dc2bbdae | 1492 | pthread_mutex_unlock(socket->lock); |
7972aab2 | 1493 | health_code_update(); |
7972aab2 DG |
1494 | return ret; |
1495 | } | |
6dc3064a DG |
1496 | |
1497 | /* | |
1498 | * Ask the consumer to snapshot a specific channel using the key. | |
1499 | * | |
9a654598 | 1500 | * Returns LTTNG_OK on success or else an LTTng error code. |
6dc3064a | 1501 | */ |
9a654598 | 1502 | enum lttng_error_code consumer_snapshot_channel(struct consumer_socket *socket, |
348a81dc | 1503 | uint64_t key, const struct consumer_output *output, int metadata, |
d2956687 JG |
1504 | uid_t uid, gid_t gid, const char *channel_path, int wait, |
1505 | uint64_t nb_packets_per_stream) | |
6dc3064a DG |
1506 | { |
1507 | int ret; | |
9a654598 | 1508 | enum lttng_error_code status = LTTNG_OK; |
6dc3064a DG |
1509 | struct lttcomm_consumer_msg msg; |
1510 | ||
1511 | assert(socket); | |
6dc3064a | 1512 | assert(output); |
6dc3064a DG |
1513 | |
1514 | DBG("Consumer snapshot channel key %" PRIu64, key); | |
1515 | ||
ee91bab2 | 1516 | memset(&msg, 0, sizeof(msg)); |
6dc3064a DG |
1517 | msg.cmd_type = LTTNG_CONSUMER_SNAPSHOT_CHANNEL; |
1518 | msg.u.snapshot_channel.key = key; | |
d07ceecd | 1519 | msg.u.snapshot_channel.nb_packets_per_stream = nb_packets_per_stream; |
6dc3064a DG |
1520 | msg.u.snapshot_channel.metadata = metadata; |
1521 | ||
348a81dc | 1522 | if (output->type == CONSUMER_DST_NET) { |
d2956687 | 1523 | msg.u.snapshot_channel.relayd_id = |
348a81dc | 1524 | output->net_seq_index; |
6dc3064a | 1525 | msg.u.snapshot_channel.use_relayd = 1; |
6dc3064a | 1526 | } else { |
07b86b52 | 1527 | msg.u.snapshot_channel.relayd_id = (uint64_t) -1ULL; |
d2956687 JG |
1528 | } |
1529 | ret = lttng_strncpy(msg.u.snapshot_channel.pathname, | |
1530 | channel_path, | |
1531 | sizeof(msg.u.snapshot_channel.pathname)); | |
1532 | if (ret < 0) { | |
1533 | ERR("Snapshot path exceeds the maximal allowed length of %zu bytes (%zu bytes required) with path \"%s\"", | |
1534 | sizeof(msg.u.snapshot_channel.pathname), | |
1535 | strlen(channel_path), | |
1536 | channel_path); | |
1537 | status = LTTNG_ERR_SNAPSHOT_FAIL; | |
1538 | goto error; | |
6dc3064a DG |
1539 | } |
1540 | ||
1541 | health_code_update(); | |
9d1103e6 | 1542 | pthread_mutex_lock(socket->lock); |
6dc3064a | 1543 | ret = consumer_send_msg(socket, &msg); |
9d1103e6 | 1544 | pthread_mutex_unlock(socket->lock); |
6dc3064a | 1545 | if (ret < 0) { |
9bbfb88c MD |
1546 | switch (-ret) { |
1547 | case LTTCOMM_CONSUMERD_CHAN_NOT_FOUND: | |
9a654598 | 1548 | status = LTTNG_ERR_CHAN_NOT_FOUND; |
9bbfb88c MD |
1549 | break; |
1550 | default: | |
9a654598 | 1551 | status = LTTNG_ERR_SNAPSHOT_FAIL; |
9bbfb88c MD |
1552 | break; |
1553 | } | |
6dc3064a DG |
1554 | goto error; |
1555 | } | |
1556 | ||
1557 | error: | |
1558 | health_code_update(); | |
9a654598 | 1559 | return status; |
6dc3064a | 1560 | } |
fb83fe64 JD |
1561 | |
1562 | /* | |
1563 | * Ask the consumer the number of discarded events for a channel. | |
1564 | */ | |
1565 | int consumer_get_discarded_events(uint64_t session_id, uint64_t channel_key, | |
1566 | struct consumer_output *consumer, uint64_t *discarded) | |
1567 | { | |
1568 | int ret; | |
1569 | struct consumer_socket *socket; | |
1570 | struct lttng_ht_iter iter; | |
1571 | struct lttcomm_consumer_msg msg; | |
1572 | ||
1573 | assert(consumer); | |
1574 | ||
1575 | DBG3("Consumer discarded events id %" PRIu64, session_id); | |
1576 | ||
1577 | memset(&msg, 0, sizeof(msg)); | |
1578 | msg.cmd_type = LTTNG_CONSUMER_DISCARDED_EVENTS; | |
1579 | msg.u.discarded_events.session_id = session_id; | |
1580 | msg.u.discarded_events.channel_key = channel_key; | |
1581 | ||
1582 | *discarded = 0; | |
1583 | ||
1584 | /* Send command for each consumer */ | |
1585 | rcu_read_lock(); | |
1586 | cds_lfht_for_each_entry(consumer->socks->ht, &iter.iter, socket, | |
1587 | node.node) { | |
1588 | uint64_t consumer_discarded = 0; | |
1589 | pthread_mutex_lock(socket->lock); | |
1590 | ret = consumer_socket_send(socket, &msg, sizeof(msg)); | |
1591 | if (ret < 0) { | |
1592 | pthread_mutex_unlock(socket->lock); | |
1593 | goto end; | |
1594 | } | |
1595 | ||
1596 | /* | |
1597 | * No need for a recv reply status because the answer to the | |
1598 | * command is the reply status message. | |
1599 | */ | |
1600 | ret = consumer_socket_recv(socket, &consumer_discarded, | |
1601 | sizeof(consumer_discarded)); | |
1602 | if (ret < 0) { | |
1603 | ERR("get discarded events"); | |
1604 | pthread_mutex_unlock(socket->lock); | |
1605 | goto end; | |
1606 | } | |
1607 | pthread_mutex_unlock(socket->lock); | |
1608 | *discarded += consumer_discarded; | |
1609 | } | |
1610 | ret = 0; | |
1611 | DBG("Consumer discarded %" PRIu64 " events in session id %" PRIu64, | |
1612 | *discarded, session_id); | |
1613 | ||
1614 | end: | |
1615 | rcu_read_unlock(); | |
1616 | return ret; | |
1617 | } | |
1618 | ||
1619 | /* | |
1620 | * Ask the consumer the number of lost packets for a channel. | |
1621 | */ | |
1622 | int consumer_get_lost_packets(uint64_t session_id, uint64_t channel_key, | |
1623 | struct consumer_output *consumer, uint64_t *lost) | |
1624 | { | |
1625 | int ret; | |
1626 | struct consumer_socket *socket; | |
1627 | struct lttng_ht_iter iter; | |
1628 | struct lttcomm_consumer_msg msg; | |
1629 | ||
1630 | assert(consumer); | |
1631 | ||
1632 | DBG3("Consumer lost packets id %" PRIu64, session_id); | |
1633 | ||
1634 | memset(&msg, 0, sizeof(msg)); | |
1635 | msg.cmd_type = LTTNG_CONSUMER_LOST_PACKETS; | |
1636 | msg.u.lost_packets.session_id = session_id; | |
1637 | msg.u.lost_packets.channel_key = channel_key; | |
1638 | ||
1639 | *lost = 0; | |
1640 | ||
1641 | /* Send command for each consumer */ | |
1642 | rcu_read_lock(); | |
1643 | cds_lfht_for_each_entry(consumer->socks->ht, &iter.iter, socket, | |
1644 | node.node) { | |
1645 | uint64_t consumer_lost = 0; | |
1646 | pthread_mutex_lock(socket->lock); | |
1647 | ret = consumer_socket_send(socket, &msg, sizeof(msg)); | |
1648 | if (ret < 0) { | |
1649 | pthread_mutex_unlock(socket->lock); | |
1650 | goto end; | |
1651 | } | |
1652 | ||
1653 | /* | |
1654 | * No need for a recv reply status because the answer to the | |
1655 | * command is the reply status message. | |
1656 | */ | |
1657 | ret = consumer_socket_recv(socket, &consumer_lost, | |
1658 | sizeof(consumer_lost)); | |
1659 | if (ret < 0) { | |
1660 | ERR("get lost packets"); | |
1661 | pthread_mutex_unlock(socket->lock); | |
1662 | goto end; | |
1663 | } | |
1664 | pthread_mutex_unlock(socket->lock); | |
1665 | *lost += consumer_lost; | |
1666 | } | |
1667 | ret = 0; | |
1668 | DBG("Consumer lost %" PRIu64 " packets in session id %" PRIu64, | |
1669 | *lost, session_id); | |
1670 | ||
1671 | end: | |
1672 | rcu_read_unlock(); | |
1673 | return ret; | |
1674 | } | |
a1ae2ea5 | 1675 | |
5c408ad8 JD |
1676 | /* |
1677 | * Ask the consumer to rotate a channel. | |
5c408ad8 JD |
1678 | * |
1679 | * The new_chunk_id is the session->rotate_count that has been incremented | |
1680 | * when the rotation started. On the relay, this allows to keep track in which | |
1681 | * chunk each stream is currently writing to (for the rotate_pending operation). | |
1682 | */ | |
1683 | int consumer_rotate_channel(struct consumer_socket *socket, uint64_t key, | |
1684 | uid_t uid, gid_t gid, struct consumer_output *output, | |
d2956687 | 1685 | bool is_metadata_channel) |
5c408ad8 JD |
1686 | { |
1687 | int ret; | |
1688 | struct lttcomm_consumer_msg msg; | |
1689 | ||
1690 | assert(socket); | |
1691 | ||
1692 | DBG("Consumer rotate channel key %" PRIu64, key); | |
1693 | ||
1694 | pthread_mutex_lock(socket->lock); | |
1695 | memset(&msg, 0, sizeof(msg)); | |
1696 | msg.cmd_type = LTTNG_CONSUMER_ROTATE_CHANNEL; | |
1697 | msg.u.rotate_channel.key = key; | |
1698 | msg.u.rotate_channel.metadata = !!is_metadata_channel; | |
5c408ad8 JD |
1699 | |
1700 | if (output->type == CONSUMER_DST_NET) { | |
1701 | msg.u.rotate_channel.relayd_id = output->net_seq_index; | |
5c408ad8 JD |
1702 | } else { |
1703 | msg.u.rotate_channel.relayd_id = (uint64_t) -1ULL; | |
5c408ad8 JD |
1704 | } |
1705 | ||
1706 | health_code_update(); | |
1707 | ret = consumer_send_msg(socket, &msg); | |
1708 | if (ret < 0) { | |
20f37cb4 MD |
1709 | switch (-ret) { |
1710 | case LTTCOMM_CONSUMERD_CHAN_NOT_FOUND: | |
1711 | ret = -LTTNG_ERR_CHAN_NOT_FOUND; | |
1712 | break; | |
1713 | default: | |
1714 | ret = -LTTNG_ERR_ROTATION_FAIL_CONSUMER; | |
1715 | break; | |
1716 | } | |
5c408ad8 JD |
1717 | goto error; |
1718 | } | |
5c408ad8 JD |
1719 | error: |
1720 | pthread_mutex_unlock(socket->lock); | |
1721 | health_code_update(); | |
1722 | return ret; | |
1723 | } | |
1724 | ||
d2956687 JG |
1725 | int consumer_init(struct consumer_socket *socket, |
1726 | const lttng_uuid sessiond_uuid) | |
00fb02ac JD |
1727 | { |
1728 | int ret; | |
d2956687 JG |
1729 | struct lttcomm_consumer_msg msg = { |
1730 | .cmd_type = LTTNG_CONSUMER_INIT, | |
1731 | }; | |
00fb02ac JD |
1732 | |
1733 | assert(socket); | |
00fb02ac | 1734 | |
d2956687 JG |
1735 | DBG("Sending consumer initialization command"); |
1736 | lttng_uuid_copy(msg.u.init.sessiond_uuid, sessiond_uuid); | |
00fb02ac JD |
1737 | |
1738 | health_code_update(); | |
1739 | ret = consumer_send_msg(socket, &msg); | |
1740 | if (ret < 0) { | |
1741 | goto error; | |
1742 | } | |
1743 | ||
d88744a4 JD |
1744 | error: |
1745 | health_code_update(); | |
1746 | return ret; | |
1747 | } | |
1748 | ||
1749 | /* | |
d2956687 | 1750 | * Ask the consumer to create a new chunk for a given session. |
92816cc3 | 1751 | * |
d2956687 | 1752 | * Called with the consumer socket lock held. |
92816cc3 | 1753 | */ |
d2956687 JG |
1754 | int consumer_create_trace_chunk(struct consumer_socket *socket, |
1755 | uint64_t relayd_id, uint64_t session_id, | |
1756 | struct lttng_trace_chunk *chunk) | |
92816cc3 JG |
1757 | { |
1758 | int ret; | |
d2956687 JG |
1759 | enum lttng_trace_chunk_status chunk_status; |
1760 | struct lttng_credentials chunk_credentials; | |
1761 | const struct lttng_directory_handle *chunk_directory_handle; | |
1762 | int chunk_dirfd; | |
1763 | const char *chunk_name; | |
913a542b | 1764 | bool chunk_name_overridden; |
d2956687 JG |
1765 | uint64_t chunk_id; |
1766 | time_t creation_timestamp; | |
1767 | char creation_timestamp_buffer[ISO8601_STR_LEN]; | |
1768 | const char *creation_timestamp_str = "(none)"; | |
1769 | const bool chunk_has_local_output = relayd_id == -1ULL; | |
1770 | struct lttcomm_consumer_msg msg = { | |
1771 | .cmd_type = LTTNG_CONSUMER_CREATE_TRACE_CHUNK, | |
1772 | .u.create_trace_chunk.session_id = session_id, | |
1773 | }; | |
92816cc3 JG |
1774 | |
1775 | assert(socket); | |
d2956687 | 1776 | assert(chunk); |
92816cc3 | 1777 | |
d2956687 JG |
1778 | if (relayd_id != -1ULL) { |
1779 | LTTNG_OPTIONAL_SET(&msg.u.create_trace_chunk.relayd_id, | |
1780 | relayd_id); | |
1781 | } | |
92816cc3 | 1782 | |
d2956687 | 1783 | chunk_status = lttng_trace_chunk_get_name(chunk, &chunk_name, |
913a542b | 1784 | &chunk_name_overridden); |
d2956687 JG |
1785 | if (chunk_status != LTTNG_TRACE_CHUNK_STATUS_OK && |
1786 | chunk_status != LTTNG_TRACE_CHUNK_STATUS_NONE) { | |
1787 | ERR("Failed to get name of trace chunk"); | |
1788 | ret = -LTTNG_ERR_FATAL; | |
92816cc3 JG |
1789 | goto error; |
1790 | } | |
913a542b | 1791 | if (chunk_name_overridden) { |
d2956687 JG |
1792 | ret = lttng_strncpy(msg.u.create_trace_chunk.override_name, |
1793 | chunk_name, | |
1794 | sizeof(msg.u.create_trace_chunk.override_name)); | |
1795 | if (ret) { | |
1796 | ERR("Trace chunk name \"%s\" exceeds the maximal length allowed by the consumer protocol", | |
1797 | chunk_name); | |
1798 | ret = -LTTNG_ERR_FATAL; | |
1799 | goto error; | |
1800 | } | |
1801 | } | |
92816cc3 | 1802 | |
d2956687 JG |
1803 | chunk_status = lttng_trace_chunk_get_creation_timestamp(chunk, |
1804 | &creation_timestamp); | |
1805 | if (chunk_status != LTTNG_TRACE_CHUNK_STATUS_OK) { | |
1806 | ret = -LTTNG_ERR_FATAL; | |
92816cc3 JG |
1807 | goto error; |
1808 | } | |
d2956687 JG |
1809 | msg.u.create_trace_chunk.creation_timestamp = |
1810 | (uint64_t) creation_timestamp; | |
1811 | /* Only used for logging purposes. */ | |
1812 | ret = time_to_iso8601_str(creation_timestamp, | |
1813 | creation_timestamp_buffer, | |
1814 | sizeof(creation_timestamp_buffer)); | |
1815 | creation_timestamp_str = !ret ? creation_timestamp_buffer : | |
1816 | "(formatting error)"; | |
1817 | ||
1818 | chunk_status = lttng_trace_chunk_get_id(chunk, &chunk_id); | |
1819 | if (chunk_status != LTTNG_TRACE_CHUNK_STATUS_OK) { | |
1820 | /* | |
1821 | * Anonymous trace chunks should never be transmitted | |
1822 | * to remote peers (consumerd and relayd). They are used | |
1823 | * internally for backward-compatibility purposes. | |
1824 | */ | |
1825 | ret = -LTTNG_ERR_FATAL; | |
1826 | goto error; | |
1827 | } | |
1828 | msg.u.create_trace_chunk.chunk_id = chunk_id; | |
92816cc3 | 1829 | |
d2956687 JG |
1830 | if (chunk_has_local_output) { |
1831 | chunk_status = lttng_trace_chunk_get_chunk_directory_handle( | |
1832 | chunk, &chunk_directory_handle); | |
1833 | if (chunk_status != LTTNG_TRACE_CHUNK_STATUS_OK) { | |
1834 | ret = -LTTNG_ERR_FATAL; | |
1835 | goto error; | |
1836 | } | |
d88744a4 | 1837 | |
d2956687 JG |
1838 | /* |
1839 | * This will only compile on platforms that support | |
1840 | * dirfd (POSIX.2008). This is fine as the session daemon | |
1841 | * is only built for such platforms. | |
1842 | * | |
1843 | * The ownership of the chunk directory handle's is maintained | |
1844 | * by the trace chunk. | |
1845 | */ | |
1846 | chunk_dirfd = lttng_directory_handle_get_dirfd( | |
1847 | chunk_directory_handle); | |
1848 | assert(chunk_dirfd >= 0); | |
d88744a4 | 1849 | |
e5add6d0 JG |
1850 | chunk_status = lttng_trace_chunk_get_credentials( |
1851 | chunk, &chunk_credentials); | |
1852 | if (chunk_status != LTTNG_TRACE_CHUNK_STATUS_OK) { | |
1853 | /* | |
1854 | * Not associating credentials to a sessiond chunk is a | |
1855 | * fatal internal error. | |
1856 | */ | |
1857 | ret = -LTTNG_ERR_FATAL; | |
1858 | goto error; | |
1859 | } | |
1860 | msg.u.create_trace_chunk.credentials.value.uid = | |
1861 | chunk_credentials.uid; | |
1862 | msg.u.create_trace_chunk.credentials.value.gid = | |
1863 | chunk_credentials.gid; | |
1864 | msg.u.create_trace_chunk.credentials.is_set = 1; | |
d2956687 | 1865 | } |
d88744a4 | 1866 | |
d2956687 JG |
1867 | DBG("Sending consumer create trace chunk command: relayd_id = %" PRId64 |
1868 | ", session_id = %" PRIu64 ", chunk_id = %" PRIu64 | |
1869 | ", creation_timestamp = %s", | |
1870 | relayd_id, session_id, chunk_id, | |
1871 | creation_timestamp_str); | |
d88744a4 JD |
1872 | health_code_update(); |
1873 | ret = consumer_send_msg(socket, &msg); | |
d2956687 | 1874 | health_code_update(); |
d88744a4 | 1875 | if (ret < 0) { |
d2956687 JG |
1876 | ERR("Trace chunk creation error on consumer"); |
1877 | ret = -LTTNG_ERR_CREATE_TRACE_CHUNK_FAIL_CONSUMER; | |
d88744a4 JD |
1878 | goto error; |
1879 | } | |
1880 | ||
d2956687 JG |
1881 | if (chunk_has_local_output) { |
1882 | DBG("Sending trace chunk directory fd to consumer"); | |
1883 | health_code_update(); | |
1884 | ret = consumer_send_fds(socket, &chunk_dirfd, 1); | |
1885 | health_code_update(); | |
1886 | if (ret < 0) { | |
1887 | ERR("Trace chunk creation error on consumer"); | |
1888 | ret = -LTTNG_ERR_CREATE_TRACE_CHUNK_FAIL_CONSUMER; | |
1889 | goto error; | |
1890 | } | |
d88744a4 | 1891 | } |
00fb02ac | 1892 | error: |
00fb02ac JD |
1893 | return ret; |
1894 | } | |
1895 | ||
a1ae2ea5 | 1896 | /* |
d2956687 | 1897 | * Ask the consumer to close a trace chunk for a given session. |
a1ae2ea5 JD |
1898 | * |
1899 | * Called with the consumer socket lock held. | |
1900 | */ | |
d2956687 JG |
1901 | int consumer_close_trace_chunk(struct consumer_socket *socket, |
1902 | uint64_t relayd_id, uint64_t session_id, | |
ecd1a12f MD |
1903 | struct lttng_trace_chunk *chunk, |
1904 | char *closed_trace_chunk_path) | |
a1ae2ea5 JD |
1905 | { |
1906 | int ret; | |
d2956687 JG |
1907 | enum lttng_trace_chunk_status chunk_status; |
1908 | struct lttcomm_consumer_msg msg = { | |
bbc4768c JG |
1909 | .cmd_type = LTTNG_CONSUMER_CLOSE_TRACE_CHUNK, |
1910 | .u.close_trace_chunk.session_id = session_id, | |
d2956687 | 1911 | }; |
ecd1a12f | 1912 | struct lttcomm_consumer_close_trace_chunk_reply reply; |
d2956687 JG |
1913 | uint64_t chunk_id; |
1914 | time_t close_timestamp; | |
bbc4768c JG |
1915 | enum lttng_trace_chunk_command_type close_command; |
1916 | const char *close_command_name = "none"; | |
ecd1a12f | 1917 | struct lttng_dynamic_buffer path_reception_buffer; |
a1ae2ea5 JD |
1918 | |
1919 | assert(socket); | |
ecd1a12f | 1920 | lttng_dynamic_buffer_init(&path_reception_buffer); |
a1ae2ea5 | 1921 | |
d2956687 | 1922 | if (relayd_id != -1ULL) { |
bbc4768c JG |
1923 | LTTNG_OPTIONAL_SET( |
1924 | &msg.u.close_trace_chunk.relayd_id, relayd_id); | |
1925 | } | |
1926 | ||
1927 | chunk_status = lttng_trace_chunk_get_close_command( | |
1928 | chunk, &close_command); | |
1929 | switch (chunk_status) { | |
1930 | case LTTNG_TRACE_CHUNK_STATUS_OK: | |
1931 | LTTNG_OPTIONAL_SET(&msg.u.close_trace_chunk.close_command, | |
1932 | (uint32_t) close_command); | |
1933 | break; | |
1934 | case LTTNG_TRACE_CHUNK_STATUS_NONE: | |
1935 | break; | |
1936 | default: | |
1937 | ERR("Failed to get trace chunk close command"); | |
1938 | ret = -1; | |
1939 | goto error; | |
a1ae2ea5 JD |
1940 | } |
1941 | ||
d2956687 JG |
1942 | chunk_status = lttng_trace_chunk_get_id(chunk, &chunk_id); |
1943 | /* | |
1944 | * Anonymous trace chunks should never be transmitted to remote peers | |
1945 | * (consumerd and relayd). They are used internally for | |
1946 | * backward-compatibility purposes. | |
1947 | */ | |
1948 | assert(chunk_status == LTTNG_TRACE_CHUNK_STATUS_OK); | |
1949 | msg.u.close_trace_chunk.chunk_id = chunk_id; | |
1950 | ||
1951 | chunk_status = lttng_trace_chunk_get_close_timestamp(chunk, | |
1952 | &close_timestamp); | |
1953 | /* | |
1954 | * A trace chunk should be closed locally before being closed remotely. | |
1955 | * Otherwise, the close timestamp would never be transmitted to the | |
1956 | * peers. | |
1957 | */ | |
1958 | assert(chunk_status == LTTNG_TRACE_CHUNK_STATUS_OK); | |
1959 | msg.u.close_trace_chunk.close_timestamp = (uint64_t) close_timestamp; | |
1960 | ||
bbc4768c JG |
1961 | if (msg.u.close_trace_chunk.close_command.is_set) { |
1962 | close_command_name = lttng_trace_chunk_command_type_get_name( | |
1963 | close_command); | |
1964 | } | |
d2956687 | 1965 | DBG("Sending consumer close trace chunk command: relayd_id = %" PRId64 |
bbc4768c JG |
1966 | ", session_id = %" PRIu64 ", chunk_id = %" PRIu64 |
1967 | ", close command = \"%s\"", | |
1968 | relayd_id, session_id, chunk_id, close_command_name); | |
a1ae2ea5 JD |
1969 | |
1970 | health_code_update(); | |
ecd1a12f | 1971 | ret = consumer_socket_send(socket, &msg, sizeof(struct lttcomm_consumer_msg)); |
a1ae2ea5 | 1972 | if (ret < 0) { |
d2956687 | 1973 | ret = -LTTNG_ERR_CLOSE_TRACE_CHUNK_FAIL_CONSUMER; |
a1ae2ea5 JD |
1974 | goto error; |
1975 | } | |
ecd1a12f MD |
1976 | ret = consumer_socket_recv(socket, &reply, sizeof(reply)); |
1977 | if (ret < 0) { | |
1978 | ret = -LTTNG_ERR_CLOSE_TRACE_CHUNK_FAIL_CONSUMER; | |
1979 | goto error; | |
1980 | } | |
1981 | if (reply.path_length >= LTTNG_PATH_MAX) { | |
1982 | ERR("Invalid path returned by relay daemon: %" PRIu32 "bytes exceeds maximal allowed length of %d bytes", | |
1983 | reply.path_length, LTTNG_PATH_MAX); | |
1984 | ret = -LTTNG_ERR_INVALID_PROTOCOL; | |
1985 | goto error; | |
1986 | } | |
1987 | ret = lttng_dynamic_buffer_set_size(&path_reception_buffer, | |
1988 | reply.path_length); | |
1989 | if (ret) { | |
1990 | ERR("Failed to allocate reception buffer of path returned by the \"close trace chunk\" command"); | |
1991 | ret = -LTTNG_ERR_NOMEM; | |
1992 | goto error; | |
1993 | } | |
1994 | ret = consumer_socket_recv(socket, path_reception_buffer.data, | |
1995 | path_reception_buffer.size); | |
1996 | if (ret < 0) { | |
1997 | ERR("Communication error while receiving path of closed trace chunk"); | |
1998 | ret = -LTTNG_ERR_CLOSE_TRACE_CHUNK_FAIL_CONSUMER; | |
1999 | goto error; | |
2000 | } | |
2001 | if (path_reception_buffer.data[path_reception_buffer.size - 1] != '\0') { | |
2002 | ERR("Invalid path returned by relay daemon: not null-terminated"); | |
2003 | ret = -LTTNG_ERR_INVALID_PROTOCOL; | |
2004 | goto error; | |
2005 | } | |
2006 | if (closed_trace_chunk_path) { | |
2007 | /* | |
2008 | * closed_trace_chunk_path is assumed to have a length >= | |
2009 | * LTTNG_PATH_MAX | |
2010 | */ | |
2011 | memcpy(closed_trace_chunk_path, path_reception_buffer.data, | |
2012 | path_reception_buffer.size); | |
2013 | } | |
a1ae2ea5 | 2014 | error: |
ecd1a12f | 2015 | lttng_dynamic_buffer_reset(&path_reception_buffer); |
a1ae2ea5 JD |
2016 | health_code_update(); |
2017 | return ret; | |
2018 | } | |
3654ed19 | 2019 | |
d2956687 JG |
2020 | /* |
2021 | * Ask the consumer if a trace chunk exists. | |
2022 | * | |
2023 | * Called with the consumer socket lock held. | |
2024 | * Returns 0 on success, or a negative value on error. | |
2025 | */ | |
2026 | int consumer_trace_chunk_exists(struct consumer_socket *socket, | |
2027 | uint64_t relayd_id, uint64_t session_id, | |
2028 | struct lttng_trace_chunk *chunk, | |
2029 | enum consumer_trace_chunk_exists_status *result) | |
3654ed19 JG |
2030 | { |
2031 | int ret; | |
d2956687 | 2032 | enum lttng_trace_chunk_status chunk_status; |
3654ed19 | 2033 | struct lttcomm_consumer_msg msg = { |
d2956687 JG |
2034 | .cmd_type = LTTNG_CONSUMER_TRACE_CHUNK_EXISTS, |
2035 | .u.trace_chunk_exists.session_id = session_id, | |
3654ed19 | 2036 | }; |
d2956687 JG |
2037 | uint64_t chunk_id; |
2038 | const char *consumer_reply_str; | |
3654ed19 JG |
2039 | |
2040 | assert(socket); | |
2041 | ||
d2956687 JG |
2042 | if (relayd_id != -1ULL) { |
2043 | LTTNG_OPTIONAL_SET(&msg.u.trace_chunk_exists.relayd_id, | |
2044 | relayd_id); | |
2045 | } | |
2046 | ||
2047 | chunk_status = lttng_trace_chunk_get_id(chunk, &chunk_id); | |
2048 | if (chunk_status != LTTNG_TRACE_CHUNK_STATUS_OK) { | |
2049 | /* | |
2050 | * Anonymous trace chunks should never be transmitted | |
2051 | * to remote peers (consumerd and relayd). They are used | |
2052 | * internally for backward-compatibility purposes. | |
2053 | */ | |
2054 | ret = -LTTNG_ERR_FATAL; | |
2055 | goto error; | |
2056 | } | |
2057 | msg.u.trace_chunk_exists.chunk_id = chunk_id; | |
2058 | ||
2059 | DBG("Sending consumer trace chunk exists command: relayd_id = %" PRId64 | |
2060 | ", session_id = %" PRIu64 | |
2061 | ", chunk_id = %" PRIu64, relayd_id, session_id, chunk_id); | |
3654ed19 JG |
2062 | |
2063 | health_code_update(); | |
2064 | ret = consumer_send_msg(socket, &msg); | |
d2956687 JG |
2065 | switch (-ret) { |
2066 | case LTTCOMM_CONSUMERD_UNKNOWN_TRACE_CHUNK: | |
2067 | consumer_reply_str = "unknown trace chunk"; | |
2068 | *result = CONSUMER_TRACE_CHUNK_EXISTS_STATUS_UNKNOWN_CHUNK; | |
2069 | break; | |
2070 | case LTTCOMM_CONSUMERD_TRACE_CHUNK_EXISTS_LOCAL: | |
2071 | consumer_reply_str = "trace chunk exists locally"; | |
2072 | *result = CONSUMER_TRACE_CHUNK_EXISTS_STATUS_EXISTS_LOCAL; | |
2073 | break; | |
2074 | case LTTCOMM_CONSUMERD_TRACE_CHUNK_EXISTS_REMOTE: | |
2075 | consumer_reply_str = "trace chunk exists on remote peer"; | |
2076 | *result = CONSUMER_TRACE_CHUNK_EXISTS_STATUS_EXISTS_REMOTE; | |
2077 | break; | |
2078 | default: | |
2079 | ERR("Consumer returned an error from TRACE_CHUNK_EXISTS command"); | |
2080 | ret = -1; | |
3654ed19 JG |
2081 | goto error; |
2082 | } | |
d2956687 JG |
2083 | DBG("Consumer reply to TRACE_CHUNK_EXISTS command: %s", |
2084 | consumer_reply_str); | |
2085 | ret = 0; | |
3654ed19 JG |
2086 | error: |
2087 | health_code_update(); | |
2088 | return ret; | |
2089 | } |