Commit | Line | Data |
---|---|---|
54012638 DG |
1 | /* |
2 | * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca> | |
3 | * | |
d14d33bf AM |
4 | * This program is free software; you can redistribute it and/or modify |
5 | * it under the terms of the GNU General Public License, version 2 only, | |
6 | * as published by the Free Software Foundation. | |
54012638 DG |
7 | * |
8 | * This program is distributed in the hope that it will be useful, | |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | * GNU General Public License for more details. | |
12 | * | |
d14d33bf AM |
13 | * You should have received a copy of the GNU General Public License along |
14 | * with this program; if not, write to the Free Software Foundation, Inc., | |
15 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
54012638 DG |
16 | */ |
17 | ||
18 | #define _GNU_SOURCE | |
6c1c0768 | 19 | #define _LGPL_SOURCE |
54012638 DG |
20 | #include <stdio.h> |
21 | #include <stdlib.h> | |
22 | #include <string.h> | |
c363b55d | 23 | #include <unistd.h> |
54012638 | 24 | |
990570ed DG |
25 | #include <common/common.h> |
26 | #include <common/defaults.h> | |
1e307fab | 27 | |
00e2e675 | 28 | #include "consumer.h" |
62499ad6 | 29 | #include "trace-kernel.h" |
54012638 | 30 | |
19e70852 | 31 | /* |
050349bb | 32 | * Find the channel name for the given kernel session. |
19e70852 | 33 | */ |
62499ad6 | 34 | struct ltt_kernel_channel *trace_kernel_get_channel_by_name( |
19e70852 DG |
35 | char *name, struct ltt_kernel_session *session) |
36 | { | |
37 | struct ltt_kernel_channel *chan; | |
38 | ||
0525e9ae DG |
39 | assert(session); |
40 | assert(name); | |
19e70852 | 41 | |
85076754 MD |
42 | /* |
43 | * If we receive an empty string for channel name, it means the | |
44 | * default channel name is requested. | |
45 | */ | |
46 | if (name[0] == '\0') | |
47 | name = DEFAULT_CHANNEL_NAME; | |
48 | ||
54d01ffb DG |
49 | DBG("Trying to find channel %s", name); |
50 | ||
19e70852 DG |
51 | cds_list_for_each_entry(chan, &session->channel_list.head, list) { |
52 | if (strcmp(name, chan->channel->name) == 0) { | |
53 | DBG("Found channel by name %s", name); | |
54 | return chan; | |
55 | } | |
56 | } | |
57 | ||
19e70852 DG |
58 | return NULL; |
59 | } | |
60 | ||
61 | /* | |
050349bb | 62 | * Find the event name for the given channel. |
19e70852 | 63 | */ |
62499ad6 | 64 | struct ltt_kernel_event *trace_kernel_get_event_by_name( |
d0ae4ea8 MD |
65 | char *name, struct ltt_kernel_channel *channel, |
66 | enum lttng_event_type type) | |
19e70852 DG |
67 | { |
68 | struct ltt_kernel_event *ev; | |
69 | ||
0525e9ae DG |
70 | assert(name); |
71 | assert(channel); | |
19e70852 DG |
72 | |
73 | cds_list_for_each_entry(ev, &channel->events_list.head, list) { | |
d0ae4ea8 MD |
74 | if (type != LTTNG_EVENT_ALL && ev->type != type) |
75 | continue; | |
19e70852 DG |
76 | if (strcmp(name, ev->event->name) == 0) { |
77 | DBG("Found event by name %s for channel %s", name, | |
78 | channel->channel->name); | |
79 | return ev; | |
80 | } | |
81 | } | |
82 | ||
19e70852 DG |
83 | return NULL; |
84 | } | |
85 | ||
54012638 | 86 | /* |
050349bb | 87 | * Allocate and initialize a kernel session data structure. |
54012638 | 88 | * |
050349bb | 89 | * Return pointer to structure or NULL. |
54012638 | 90 | */ |
dec56f6c | 91 | struct ltt_kernel_session *trace_kernel_create_session(void) |
54012638 | 92 | { |
a4b92340 | 93 | struct ltt_kernel_session *lks = NULL; |
54012638 DG |
94 | |
95 | /* Allocate a new ltt kernel session */ | |
ba7f0ae5 | 96 | lks = zmalloc(sizeof(struct ltt_kernel_session)); |
54012638 | 97 | if (lks == NULL) { |
df0f840b | 98 | PERROR("create kernel session zmalloc"); |
a4b92340 | 99 | goto alloc_error; |
54012638 DG |
100 | } |
101 | ||
102 | /* Init data structure */ | |
03550b58 MD |
103 | lks->fd = -1; |
104 | lks->metadata_stream_fd = -1; | |
54012638 DG |
105 | lks->channel_count = 0; |
106 | lks->stream_count_global = 0; | |
107 | lks->metadata = NULL; | |
108 | CDS_INIT_LIST_HEAD(&lks->channel_list.head); | |
109 | ||
00e2e675 DG |
110 | lks->consumer = consumer_create_output(CONSUMER_DST_LOCAL); |
111 | if (lks->consumer == NULL) { | |
112 | goto error; | |
113 | } | |
114 | ||
115 | /* | |
116 | * The tmp_consumer stays NULL until a set_consumer_uri command is | |
117 | * executed. At this point, the consumer should be nullify until an | |
118 | * enable_consumer command. This assignment is symbolic since we've zmalloc | |
119 | * the struct. | |
120 | */ | |
121 | lks->tmp_consumer = NULL; | |
122 | ||
54012638 DG |
123 | return lks; |
124 | ||
125 | error: | |
a4b92340 DG |
126 | free(lks); |
127 | ||
128 | alloc_error: | |
54012638 DG |
129 | return NULL; |
130 | } | |
131 | ||
132 | /* | |
050349bb | 133 | * Allocate and initialize a kernel channel data structure. |
54012638 | 134 | * |
050349bb | 135 | * Return pointer to structure or NULL. |
54012638 | 136 | */ |
00e2e675 | 137 | struct ltt_kernel_channel *trace_kernel_create_channel( |
fdd9eb17 | 138 | struct lttng_channel *chan) |
54012638 | 139 | { |
54012638 | 140 | struct ltt_kernel_channel *lkc; |
54012638 | 141 | |
0525e9ae DG |
142 | assert(chan); |
143 | ||
ba7f0ae5 | 144 | lkc = zmalloc(sizeof(struct ltt_kernel_channel)); |
f3ed775e | 145 | if (lkc == NULL) { |
df0f840b | 146 | PERROR("ltt_kernel_channel zmalloc"); |
54012638 DG |
147 | goto error; |
148 | } | |
149 | ||
ba7f0ae5 | 150 | lkc->channel = zmalloc(sizeof(struct lttng_channel)); |
f3ed775e | 151 | if (lkc->channel == NULL) { |
df0f840b | 152 | PERROR("lttng_channel zmalloc"); |
ed594980 | 153 | free(lkc); |
f3ed775e DG |
154 | goto error; |
155 | } | |
156 | memcpy(lkc->channel, chan, sizeof(struct lttng_channel)); | |
54012638 | 157 | |
85076754 MD |
158 | /* |
159 | * If we receive an empty string for channel name, it means the | |
160 | * default channel name is requested. | |
161 | */ | |
162 | if (chan->name[0] == '\0') { | |
163 | strncpy(lkc->channel->name, DEFAULT_CHANNEL_NAME, | |
164 | sizeof(lkc->channel->name)); | |
165 | } | |
bd722d76 | 166 | lkc->channel->name[LTTNG_KERNEL_SYM_NAME_LEN - 1] = '\0'; |
85076754 | 167 | |
03550b58 | 168 | lkc->fd = -1; |
54012638 | 169 | lkc->stream_count = 0; |
cbbbb275 | 170 | lkc->event_count = 0; |
d36b8583 | 171 | lkc->enabled = 1; |
54012638 DG |
172 | /* Init linked list */ |
173 | CDS_INIT_LIST_HEAD(&lkc->events_list.head); | |
174 | CDS_INIT_LIST_HEAD(&lkc->stream_list.head); | |
645328ae | 175 | CDS_INIT_LIST_HEAD(&lkc->ctx_list); |
54012638 DG |
176 | |
177 | return lkc; | |
178 | ||
179 | error: | |
180 | return NULL; | |
181 | } | |
182 | ||
645328ae DG |
183 | /* |
184 | * Allocate and init a kernel context object. | |
185 | * | |
186 | * Return the allocated object or NULL on error. | |
187 | */ | |
188 | struct ltt_kernel_context *trace_kernel_create_context( | |
189 | struct lttng_kernel_context *ctx) | |
190 | { | |
191 | struct ltt_kernel_context *kctx; | |
192 | ||
193 | kctx = zmalloc(sizeof(*kctx)); | |
194 | if (!kctx) { | |
195 | PERROR("zmalloc kernel context"); | |
196 | goto error; | |
197 | } | |
198 | ||
199 | if (ctx) { | |
200 | memcpy(&kctx->ctx, ctx, sizeof(kctx->ctx)); | |
201 | } | |
202 | ||
7b9445b3 DG |
203 | CDS_INIT_LIST_HEAD(&kctx->list); |
204 | ||
645328ae DG |
205 | error: |
206 | return kctx; | |
207 | } | |
208 | ||
54012638 | 209 | /* |
050349bb | 210 | * Allocate and initialize a kernel event. Set name and event type. |
54012638 | 211 | * |
050349bb | 212 | * Return pointer to structure or NULL. |
54012638 | 213 | */ |
62499ad6 | 214 | struct ltt_kernel_event *trace_kernel_create_event(struct lttng_event *ev) |
54012638 DG |
215 | { |
216 | struct ltt_kernel_event *lke; | |
217 | struct lttng_kernel_event *attr; | |
218 | ||
0525e9ae DG |
219 | assert(ev); |
220 | ||
ba7f0ae5 DG |
221 | lke = zmalloc(sizeof(struct ltt_kernel_event)); |
222 | attr = zmalloc(sizeof(struct lttng_kernel_event)); | |
54012638 | 223 | if (lke == NULL || attr == NULL) { |
df0f840b | 224 | PERROR("kernel event zmalloc"); |
54012638 DG |
225 | goto error; |
226 | } | |
227 | ||
f3ed775e | 228 | switch (ev->type) { |
7d29a247 | 229 | case LTTNG_EVENT_PROBE: |
e6ddca71 | 230 | attr->instrumentation = LTTNG_KERNEL_KPROBE; |
7d29a247 DG |
231 | attr->u.kprobe.addr = ev->attr.probe.addr; |
232 | attr->u.kprobe.offset = ev->attr.probe.offset; | |
f3ed775e | 233 | strncpy(attr->u.kprobe.symbol_name, |
dbbb3ec5 DG |
234 | ev->attr.probe.symbol_name, LTTNG_KERNEL_SYM_NAME_LEN); |
235 | attr->u.kprobe.symbol_name[LTTNG_KERNEL_SYM_NAME_LEN - 1] = '\0'; | |
f3ed775e DG |
236 | break; |
237 | case LTTNG_EVENT_FUNCTION: | |
8f0d098b MD |
238 | attr->instrumentation = LTTNG_KERNEL_KRETPROBE; |
239 | attr->u.kretprobe.addr = ev->attr.probe.addr; | |
240 | attr->u.kretprobe.offset = ev->attr.probe.offset; | |
8f0d098b | 241 | strncpy(attr->u.kretprobe.symbol_name, |
dbbb3ec5 DG |
242 | ev->attr.probe.symbol_name, LTTNG_KERNEL_SYM_NAME_LEN); |
243 | attr->u.kretprobe.symbol_name[LTTNG_KERNEL_SYM_NAME_LEN - 1] = '\0'; | |
8f0d098b MD |
244 | break; |
245 | case LTTNG_EVENT_FUNCTION_ENTRY: | |
f3ed775e DG |
246 | attr->instrumentation = LTTNG_KERNEL_FUNCTION; |
247 | strncpy(attr->u.ftrace.symbol_name, | |
dbbb3ec5 DG |
248 | ev->attr.ftrace.symbol_name, LTTNG_KERNEL_SYM_NAME_LEN); |
249 | attr->u.ftrace.symbol_name[LTTNG_KERNEL_SYM_NAME_LEN - 1] = '\0'; | |
f3ed775e | 250 | break; |
e6ddca71 DG |
251 | case LTTNG_EVENT_TRACEPOINT: |
252 | attr->instrumentation = LTTNG_KERNEL_TRACEPOINT; | |
f3ed775e | 253 | break; |
a54bd42d MD |
254 | case LTTNG_EVENT_SYSCALL: |
255 | attr->instrumentation = LTTNG_KERNEL_SYSCALL; | |
0133c199 | 256 | break; |
7a3d1328 MD |
257 | case LTTNG_EVENT_ALL: |
258 | attr->instrumentation = LTTNG_KERNEL_ALL; | |
259 | break; | |
f3ed775e DG |
260 | default: |
261 | ERR("Unknown kernel instrumentation type (%d)", ev->type); | |
262 | goto error; | |
263 | } | |
264 | ||
265 | /* Copy event name */ | |
dbbb3ec5 DG |
266 | strncpy(attr->name, ev->name, LTTNG_KERNEL_SYM_NAME_LEN); |
267 | attr->name[LTTNG_KERNEL_SYM_NAME_LEN - 1] = '\0'; | |
f3ed775e | 268 | |
54012638 | 269 | /* Setting up a kernel event */ |
03550b58 | 270 | lke->fd = -1; |
54012638 | 271 | lke->event = attr; |
d36b8583 | 272 | lke->enabled = 1; |
54012638 DG |
273 | |
274 | return lke; | |
275 | ||
276 | error: | |
a2c0da86 MD |
277 | free(lke); |
278 | free(attr); | |
54012638 DG |
279 | return NULL; |
280 | } | |
281 | ||
282 | /* | |
050349bb | 283 | * Allocate and initialize a kernel metadata. |
54012638 | 284 | * |
050349bb | 285 | * Return pointer to structure or NULL. |
54012638 | 286 | */ |
a4b92340 | 287 | struct ltt_kernel_metadata *trace_kernel_create_metadata(void) |
54012638 | 288 | { |
54012638 | 289 | struct ltt_kernel_metadata *lkm; |
f3ed775e | 290 | struct lttng_channel *chan; |
54012638 | 291 | |
ba7f0ae5 DG |
292 | lkm = zmalloc(sizeof(struct ltt_kernel_metadata)); |
293 | chan = zmalloc(sizeof(struct lttng_channel)); | |
f3ed775e | 294 | if (lkm == NULL || chan == NULL) { |
df0f840b | 295 | PERROR("kernel metadata zmalloc"); |
54012638 DG |
296 | goto error; |
297 | } | |
298 | ||
299 | /* Set default attributes */ | |
f3ed775e | 300 | chan->attr.overwrite = DEFAULT_CHANNEL_OVERWRITE; |
3e230f92 | 301 | chan->attr.subbuf_size = default_get_metadata_subbuf_size(); |
b389abbe | 302 | chan->attr.num_subbuf = DEFAULT_METADATA_SUBBUF_NUM; |
6bb9e85f MD |
303 | chan->attr.switch_timer_interval = DEFAULT_KERNEL_CHANNEL_SWITCH_TIMER; |
304 | chan->attr.read_timer_interval = DEFAULT_KERNEL_CHANNEL_READ_TIMER; | |
7d452e12 | 305 | chan->attr.output = DEFAULT_KERNEL_CHANNEL_OUTPUT; |
54012638 DG |
306 | |
307 | /* Init metadata */ | |
03550b58 | 308 | lkm->fd = -1; |
f3ed775e | 309 | lkm->conf = chan; |
54012638 DG |
310 | |
311 | return lkm; | |
312 | ||
313 | error: | |
a2c0da86 MD |
314 | free(lkm); |
315 | free(chan); | |
54012638 DG |
316 | return NULL; |
317 | } | |
318 | ||
319 | /* | |
050349bb DG |
320 | * Allocate and initialize a kernel stream. The stream is set to ACTIVE_FD by |
321 | * default. | |
54012638 | 322 | * |
050349bb | 323 | * Return pointer to structure or NULL. |
54012638 | 324 | */ |
00e2e675 DG |
325 | struct ltt_kernel_stream *trace_kernel_create_stream(const char *name, |
326 | unsigned int count) | |
54012638 | 327 | { |
00e2e675 | 328 | int ret; |
54012638 DG |
329 | struct ltt_kernel_stream *lks; |
330 | ||
0525e9ae DG |
331 | assert(name); |
332 | ||
ba7f0ae5 | 333 | lks = zmalloc(sizeof(struct ltt_kernel_stream)); |
54012638 | 334 | if (lks == NULL) { |
df0f840b | 335 | PERROR("kernel stream zmalloc"); |
54012638 DG |
336 | goto error; |
337 | } | |
338 | ||
00e2e675 | 339 | /* Set name */ |
535b8ff4 | 340 | ret = snprintf(lks->name, sizeof(lks->name), "%s_%u", name, count); |
00e2e675 DG |
341 | if (ret < 0) { |
342 | PERROR("snprintf stream name"); | |
343 | goto error; | |
344 | } | |
345 | lks->name[sizeof(lks->name) - 1] = '\0'; | |
346 | ||
54012638 | 347 | /* Init stream */ |
03550b58 | 348 | lks->fd = -1; |
54012638 | 349 | lks->state = 0; |
ffe60014 | 350 | lks->cpu = count; |
54012638 DG |
351 | |
352 | return lks; | |
353 | ||
354 | error: | |
355 | return NULL; | |
356 | } | |
c363b55d | 357 | |
050349bb DG |
358 | /* |
359 | * Cleanup kernel stream structure. | |
360 | */ | |
62499ad6 | 361 | void trace_kernel_destroy_stream(struct ltt_kernel_stream *stream) |
c363b55d | 362 | { |
0525e9ae DG |
363 | assert(stream); |
364 | ||
33a2b854 | 365 | DBG("[trace] Closing stream fd %d", stream->fd); |
c363b55d | 366 | /* Close kernel fd */ |
03550b58 | 367 | if (stream->fd >= 0) { |
c617c0c6 MD |
368 | int ret; |
369 | ||
03550b58 MD |
370 | ret = close(stream->fd); |
371 | if (ret) { | |
372 | PERROR("close"); | |
373 | } | |
799e2c4f | 374 | } |
c363b55d DG |
375 | /* Remove from stream list */ |
376 | cds_list_del(&stream->list); | |
f9815039 | 377 | |
c363b55d DG |
378 | free(stream); |
379 | } | |
380 | ||
050349bb DG |
381 | /* |
382 | * Cleanup kernel event structure. | |
383 | */ | |
62499ad6 | 384 | void trace_kernel_destroy_event(struct ltt_kernel_event *event) |
c363b55d | 385 | { |
0525e9ae DG |
386 | assert(event); |
387 | ||
87eb4ab8 | 388 | if (event->fd >= 0) { |
c617c0c6 MD |
389 | int ret; |
390 | ||
87eb4ab8 MD |
391 | DBG("[trace] Closing event fd %d", event->fd); |
392 | /* Close kernel fd */ | |
799e2c4f MD |
393 | ret = close(event->fd); |
394 | if (ret) { | |
395 | PERROR("close"); | |
396 | } | |
87eb4ab8 MD |
397 | } else { |
398 | DBG("[trace] Tearing down event (no associated fd)"); | |
399 | } | |
c363b55d DG |
400 | |
401 | /* Remove from event list */ | |
402 | cds_list_del(&event->list); | |
f9815039 DG |
403 | |
404 | free(event->event); | |
c363b55d DG |
405 | free(event); |
406 | } | |
407 | ||
645328ae DG |
408 | /* |
409 | * Cleanup kernel context structure. | |
410 | */ | |
411 | void trace_kernel_destroy_context(struct ltt_kernel_context *ctx) | |
412 | { | |
413 | assert(ctx); | |
414 | ||
415 | cds_list_del(&ctx->list); | |
416 | free(ctx); | |
417 | } | |
418 | ||
050349bb DG |
419 | /* |
420 | * Cleanup kernel channel structure. | |
421 | */ | |
62499ad6 | 422 | void trace_kernel_destroy_channel(struct ltt_kernel_channel *channel) |
c363b55d | 423 | { |
af9737e9 DG |
424 | struct ltt_kernel_stream *stream, *stmp; |
425 | struct ltt_kernel_event *event, *etmp; | |
645328ae | 426 | struct ltt_kernel_context *ctx, *ctmp; |
799e2c4f | 427 | int ret; |
c363b55d | 428 | |
0525e9ae DG |
429 | assert(channel); |
430 | ||
33a2b854 | 431 | DBG("[trace] Closing channel fd %d", channel->fd); |
c363b55d | 432 | /* Close kernel fd */ |
03550b58 MD |
433 | if (channel->fd >= 0) { |
434 | ret = close(channel->fd); | |
435 | if (ret) { | |
436 | PERROR("close"); | |
437 | } | |
799e2c4f | 438 | } |
c363b55d DG |
439 | |
440 | /* For each stream in the channel list */ | |
af9737e9 | 441 | cds_list_for_each_entry_safe(stream, stmp, &channel->stream_list.head, list) { |
62499ad6 | 442 | trace_kernel_destroy_stream(stream); |
c363b55d DG |
443 | } |
444 | ||
445 | /* For each event in the channel list */ | |
af9737e9 | 446 | cds_list_for_each_entry_safe(event, etmp, &channel->events_list.head, list) { |
62499ad6 | 447 | trace_kernel_destroy_event(event); |
c363b55d DG |
448 | } |
449 | ||
645328ae DG |
450 | /* For each context in the channel list */ |
451 | cds_list_for_each_entry_safe(ctx, ctmp, &channel->ctx_list, list) { | |
452 | trace_kernel_destroy_context(ctx); | |
453 | } | |
454 | ||
c363b55d DG |
455 | /* Remove from channel list */ |
456 | cds_list_del(&channel->list); | |
f9815039 | 457 | |
f9815039 | 458 | free(channel->channel); |
c363b55d DG |
459 | free(channel); |
460 | } | |
461 | ||
050349bb DG |
462 | /* |
463 | * Cleanup kernel metadata structure. | |
464 | */ | |
62499ad6 | 465 | void trace_kernel_destroy_metadata(struct ltt_kernel_metadata *metadata) |
c363b55d | 466 | { |
0525e9ae DG |
467 | assert(metadata); |
468 | ||
33a2b854 | 469 | DBG("[trace] Closing metadata fd %d", metadata->fd); |
c363b55d | 470 | /* Close kernel fd */ |
03550b58 | 471 | if (metadata->fd >= 0) { |
c617c0c6 MD |
472 | int ret; |
473 | ||
03550b58 MD |
474 | ret = close(metadata->fd); |
475 | if (ret) { | |
476 | PERROR("close"); | |
477 | } | |
799e2c4f | 478 | } |
c363b55d | 479 | |
f9815039 | 480 | free(metadata->conf); |
c363b55d DG |
481 | free(metadata); |
482 | } | |
483 | ||
050349bb | 484 | /* |
62499ad6 | 485 | * Cleanup kernel session structure |
36b588ed MD |
486 | * |
487 | * Should *NOT* be called with RCU read-side lock held. | |
050349bb | 488 | */ |
62499ad6 | 489 | void trace_kernel_destroy_session(struct ltt_kernel_session *session) |
c363b55d | 490 | { |
af9737e9 | 491 | struct ltt_kernel_channel *channel, *ctmp; |
799e2c4f | 492 | int ret; |
c363b55d | 493 | |
0525e9ae DG |
494 | assert(session); |
495 | ||
33a2b854 | 496 | DBG("[trace] Closing session fd %d", session->fd); |
c363b55d | 497 | /* Close kernel fds */ |
03550b58 MD |
498 | if (session->fd >= 0) { |
499 | ret = close(session->fd); | |
500 | if (ret) { | |
501 | PERROR("close"); | |
502 | } | |
799e2c4f | 503 | } |
f9815039 | 504 | |
03550b58 | 505 | if (session->metadata_stream_fd >= 0) { |
70dc1c34 | 506 | DBG("[trace] Closing metadata stream fd %d", session->metadata_stream_fd); |
799e2c4f MD |
507 | ret = close(session->metadata_stream_fd); |
508 | if (ret) { | |
509 | PERROR("close"); | |
510 | } | |
70dc1c34 | 511 | } |
c363b55d | 512 | |
d36b8583 | 513 | if (session->metadata != NULL) { |
62499ad6 | 514 | trace_kernel_destroy_metadata(session->metadata); |
d36b8583 | 515 | } |
c363b55d | 516 | |
af9737e9 | 517 | cds_list_for_each_entry_safe(channel, ctmp, &session->channel_list.head, list) { |
62499ad6 | 518 | trace_kernel_destroy_channel(channel); |
c363b55d DG |
519 | } |
520 | ||
00e2e675 DG |
521 | /* Wipe consumer output object */ |
522 | consumer_destroy_output(session->consumer); | |
523 | consumer_destroy_output(session->tmp_consumer); | |
524 | ||
c363b55d DG |
525 | free(session); |
526 | } |