Commit | Line | Data |
---|---|---|
54d01ffb 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. | |
54d01ffb | 7 | * |
d14d33bf AM |
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. | |
54d01ffb | 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. | |
54d01ffb DG |
16 | */ |
17 | ||
be040666 | 18 | #define _GNU_SOURCE |
d87bfb32 | 19 | #include <errno.h> |
54d01ffb | 20 | #include <urcu/list.h> |
2bdd86d4 | 21 | #include <string.h> |
54d01ffb DG |
22 | |
23 | #include <lttng/lttng.h> | |
db758600 | 24 | #include <common/error.h> |
10a8a223 | 25 | #include <common/sessiond-comm/sessiond-comm.h> |
54d01ffb DG |
26 | |
27 | #include "channel.h" | |
28 | #include "event.h" | |
4771f025 | 29 | #include "kernel.h" |
9df8df5e | 30 | #include "ust-ctl.h" |
edb67388 DG |
31 | #include "ust-app.h" |
32 | #include "trace-kernel.h" | |
33 | #include "trace-ust.h" | |
54d01ffb | 34 | |
8c9ae521 DG |
35 | /* |
36 | * Setup a lttng_event used to enable *all* syscall tracing. | |
37 | */ | |
38 | static void init_syscalls_kernel_event(struct lttng_event *event) | |
39 | { | |
40 | event->name[0] = '\0'; | |
41 | /* | |
42 | * We use LTTNG_EVENT* here since the trace kernel creation will make the | |
43 | * right changes for the kernel. | |
44 | */ | |
45 | event->type = LTTNG_EVENT_SYSCALL; | |
46 | } | |
47 | ||
54d01ffb | 48 | /* |
7a3d1328 | 49 | * Disable kernel tracepoint event for a channel from the kernel session. |
54d01ffb | 50 | */ |
7a3d1328 | 51 | int event_kernel_disable_tracepoint(struct ltt_kernel_session *ksession, |
54d01ffb DG |
52 | struct ltt_kernel_channel *kchan, char *event_name) |
53 | { | |
54 | int ret; | |
55 | struct ltt_kernel_event *kevent; | |
56 | ||
57 | kevent = trace_kernel_get_event_by_name(event_name, kchan); | |
58 | if (kevent == NULL) { | |
59 | ret = LTTCOMM_NO_EVENT; | |
60 | goto error; | |
61 | } | |
62 | ||
63 | ret = kernel_disable_event(kevent); | |
64 | if (ret < 0) { | |
65 | ret = LTTCOMM_KERN_DISABLE_FAIL; | |
66 | goto error; | |
67 | } | |
68 | ||
69 | DBG("Kernel event %s disable for channel %s.", | |
70 | kevent->event->name, kchan->channel->name); | |
71 | ||
72 | ret = LTTCOMM_OK; | |
73 | ||
74 | error: | |
75 | return ret; | |
76 | } | |
77 | ||
78 | /* | |
7a3d1328 | 79 | * Disable kernel tracepoint events for a channel from the kernel session. |
54d01ffb | 80 | */ |
7a3d1328 | 81 | int event_kernel_disable_all_tracepoints(struct ltt_kernel_session *ksession, |
54d01ffb DG |
82 | struct ltt_kernel_channel *kchan) |
83 | { | |
84 | int ret; | |
85 | struct ltt_kernel_event *kevent; | |
86 | ||
87 | /* For each event in the kernel session */ | |
88 | cds_list_for_each_entry(kevent, &kchan->events_list.head, list) { | |
89 | ret = kernel_disable_event(kevent); | |
90 | if (ret < 0) { | |
91 | /* We continue disabling the rest */ | |
92 | continue; | |
93 | } | |
94 | } | |
54d01ffb | 95 | ret = LTTCOMM_OK; |
7a3d1328 MD |
96 | return ret; |
97 | } | |
98 | ||
99 | /* | |
100 | * Disable kernel syscall events for a channel from the kernel session. | |
101 | */ | |
102 | int event_kernel_disable_all_syscalls(struct ltt_kernel_session *ksession, | |
103 | struct ltt_kernel_channel *kchan) | |
104 | { | |
105 | ERR("Cannot disable syscall tracing for existing session. Please destroy session instead."); | |
106 | return LTTCOMM_OK; /* Return OK so disable all succeeds */ | |
107 | } | |
54d01ffb | 108 | |
7a3d1328 MD |
109 | /* |
110 | * Disable all kernel event for a channel from the kernel session. | |
111 | */ | |
112 | int event_kernel_disable_all(struct ltt_kernel_session *ksession, | |
113 | struct ltt_kernel_channel *kchan) | |
114 | { | |
115 | int ret; | |
116 | ||
117 | ret = event_kernel_disable_all_tracepoints(ksession, kchan); | |
118 | if (ret != LTTCOMM_OK) | |
119 | return ret; | |
120 | ret = event_kernel_disable_all_syscalls(ksession, kchan); | |
54d01ffb DG |
121 | return ret; |
122 | } | |
123 | ||
124 | /* | |
7a3d1328 | 125 | * Enable kernel tracepoint event for a channel from the kernel session. |
54d01ffb | 126 | */ |
7a3d1328 | 127 | int event_kernel_enable_tracepoint(struct ltt_kernel_session *ksession, |
54d01ffb DG |
128 | struct ltt_kernel_channel *kchan, struct lttng_event *event) |
129 | { | |
130 | int ret; | |
131 | struct ltt_kernel_event *kevent; | |
132 | ||
133 | kevent = trace_kernel_get_event_by_name(event->name, kchan); | |
134 | if (kevent == NULL) { | |
135 | ret = kernel_create_event(event, kchan); | |
136 | if (ret < 0) { | |
bd29c13d DG |
137 | switch (-ret) { |
138 | case EEXIST: | |
d87bfb32 | 139 | ret = LTTCOMM_KERN_EVENT_EXIST; |
bd29c13d DG |
140 | break; |
141 | case ENOSYS: | |
142 | ret = LTTCOMM_KERN_EVENT_ENOSYS; | |
143 | break; | |
144 | default: | |
d87bfb32 | 145 | ret = LTTCOMM_KERN_ENABLE_FAIL; |
bd29c13d | 146 | break; |
d87bfb32 | 147 | } |
7a3d1328 | 148 | goto end; |
54d01ffb DG |
149 | } |
150 | } else if (kevent->enabled == 0) { | |
151 | ret = kernel_enable_event(kevent); | |
152 | if (ret < 0) { | |
153 | ret = LTTCOMM_KERN_ENABLE_FAIL; | |
7a3d1328 | 154 | goto end; |
54d01ffb | 155 | } |
42224349 DG |
156 | } else { |
157 | /* At this point, the event is considered enabled */ | |
158 | ret = LTTCOMM_KERN_EVENT_EXIST; | |
159 | goto end; | |
54d01ffb | 160 | } |
42224349 | 161 | |
54d01ffb | 162 | ret = LTTCOMM_OK; |
7a3d1328 | 163 | end: |
54d01ffb DG |
164 | return ret; |
165 | } | |
166 | ||
167 | /* | |
7a3d1328 | 168 | * Enable all kernel tracepoint events of a channel of the kernel session. |
54d01ffb | 169 | */ |
7a3d1328 | 170 | int event_kernel_enable_all_tracepoints(struct ltt_kernel_session *ksession, |
54d01ffb DG |
171 | struct ltt_kernel_channel *kchan, int kernel_tracer_fd) |
172 | { | |
173 | int size, i, ret; | |
174 | struct ltt_kernel_event *kevent; | |
8f69e5eb | 175 | struct lttng_event *event_list = NULL; |
54d01ffb DG |
176 | |
177 | /* For each event in the kernel session */ | |
178 | cds_list_for_each_entry(kevent, &kchan->events_list.head, list) { | |
8f69e5eb DG |
179 | if (kevent->enabled == 0) { |
180 | ret = kernel_enable_event(kevent); | |
181 | if (ret < 0) { | |
182 | /* Enable failed but still continue */ | |
183 | continue; | |
184 | } | |
54d01ffb DG |
185 | } |
186 | } | |
187 | ||
188 | size = kernel_list_events(kernel_tracer_fd, &event_list); | |
189 | if (size < 0) { | |
190 | ret = LTTCOMM_KERN_LIST_FAIL; | |
7a3d1328 | 191 | goto end; |
54d01ffb DG |
192 | } |
193 | ||
194 | for (i = 0; i < size; i++) { | |
195 | kevent = trace_kernel_get_event_by_name(event_list[i].name, kchan); | |
196 | if (kevent == NULL) { | |
197 | /* Default event type for enable all */ | |
198 | event_list[i].type = LTTNG_EVENT_TRACEPOINT; | |
199 | /* Enable each single tracepoint event */ | |
200 | ret = kernel_create_event(&event_list[i], kchan); | |
201 | if (ret < 0) { | |
202 | /* Ignore error here and continue */ | |
203 | } | |
204 | } | |
205 | } | |
54d01ffb | 206 | free(event_list); |
8f69e5eb | 207 | |
54d01ffb | 208 | ret = LTTCOMM_OK; |
7a3d1328 | 209 | end: |
54d01ffb | 210 | return ret; |
7a3d1328 | 211 | |
54d01ffb | 212 | } |
8c9ae521 DG |
213 | |
214 | /* | |
7a3d1328 | 215 | * Enable all kernel tracepoint events of a channel of the kernel session. |
8c9ae521 | 216 | */ |
7a3d1328 | 217 | int event_kernel_enable_all_syscalls(struct ltt_kernel_session *ksession, |
8c9ae521 DG |
218 | struct ltt_kernel_channel *kchan, int kernel_tracer_fd) |
219 | { | |
220 | int ret; | |
221 | struct lttng_event event; | |
222 | ||
223 | init_syscalls_kernel_event(&event); | |
224 | ||
225 | DBG("Enabling all syscall tracing"); | |
226 | ||
227 | ret = kernel_create_event(&event, kchan); | |
228 | if (ret < 0) { | |
8f69e5eb DG |
229 | if (ret == -EEXIST) { |
230 | ret = LTTCOMM_KERN_EVENT_EXIST; | |
231 | } else { | |
232 | ret = LTTCOMM_KERN_ENABLE_FAIL; | |
233 | } | |
7a3d1328 | 234 | goto end; |
8c9ae521 | 235 | } |
8f69e5eb | 236 | |
8c9ae521 | 237 | ret = LTTCOMM_OK; |
7a3d1328 MD |
238 | end: |
239 | return ret; | |
240 | } | |
8c9ae521 | 241 | |
7a3d1328 MD |
242 | /* |
243 | * Enable all kernel events of a channel of the kernel session. | |
244 | */ | |
245 | int event_kernel_enable_all(struct ltt_kernel_session *ksession, | |
246 | struct ltt_kernel_channel *kchan, int kernel_tracer_fd) | |
247 | { | |
6bd8707a | 248 | int tp_ret; |
7a3d1328 | 249 | |
bd29c13d DG |
250 | tp_ret = event_kernel_enable_all_tracepoints(ksession, kchan, kernel_tracer_fd); |
251 | if (tp_ret != LTTCOMM_OK) { | |
7a3d1328 MD |
252 | goto end; |
253 | } | |
bd29c13d DG |
254 | |
255 | /* | |
256 | * Reaching this code path means that all tracepoints were enabled without | |
257 | * errors so we ignore the error value of syscalls. | |
258 | * | |
259 | * At the moment, failing to enable syscalls on "lttng enable-event -a -k" | |
260 | * is not considered an error that need to be returned to the client since | |
261 | * tracepoints did not fail. Future work will allow us to send back | |
262 | * multiple errors to the client in one API call. | |
263 | */ | |
6bd8707a | 264 | (void) event_kernel_enable_all_syscalls(ksession, kchan, kernel_tracer_fd); |
bd29c13d | 265 | |
7a3d1328 | 266 | end: |
bd29c13d | 267 | return tp_ret; |
8c9ae521 | 268 | } |
2bdd86d4 | 269 | |
7f79d3a1 DG |
270 | /* |
271 | * ============================ | |
272 | * UST : The Ultimate Frontier! | |
273 | * ============================ | |
274 | */ | |
275 | ||
76d45b40 DG |
276 | /* |
277 | * Enable all UST tracepoints for a channel from a UST session. | |
278 | */ | |
279 | int event_ust_enable_all_tracepoints(struct ltt_ust_session *usess, int domain, | |
280 | struct ltt_ust_channel *uchan) | |
281 | { | |
6775595e | 282 | int ret, i, size; |
bec39940 | 283 | struct lttng_ht_iter iter; |
76d45b40 | 284 | struct ltt_ust_event *uevent = NULL; |
7f79d3a1 | 285 | struct lttng_event *events = NULL; |
76d45b40 DG |
286 | |
287 | switch (domain) { | |
288 | case LTTNG_DOMAIN_UST: | |
289 | { | |
290 | /* Enable existing events */ | |
bec39940 DG |
291 | cds_lfht_for_each_entry(uchan->events->ht, &iter.iter, uevent, |
292 | node.node) { | |
76d45b40 DG |
293 | if (uevent->enabled == 0) { |
294 | ret = ust_app_enable_event_glb(usess, uchan, uevent); | |
295 | if (ret < 0) { | |
296 | continue; | |
297 | } | |
298 | uevent->enabled = 1; | |
299 | } | |
300 | } | |
301 | ||
302 | /* Get all UST available events */ | |
303 | size = ust_app_list_events(&events); | |
304 | if (size < 0) { | |
305 | ret = LTTCOMM_UST_LIST_FAIL; | |
306 | goto error; | |
307 | } | |
308 | ||
309 | for (i = 0; i < size; i++) { | |
310 | /* | |
311 | * Check if event exist and if so, continue since it was enable | |
312 | * previously. | |
313 | */ | |
314 | uevent = trace_ust_find_event_by_name(uchan->events, | |
315 | events[i].name); | |
316 | if (uevent != NULL) { | |
317 | ret = ust_app_enable_event_pid(usess, uchan, uevent, | |
318 | events[i].pid); | |
319 | if (ret < 0) { | |
320 | if (ret != -EEXIST) { | |
321 | ret = LTTCOMM_UST_ENABLE_FAIL; | |
322 | goto error; | |
323 | } | |
324 | } | |
325 | continue; | |
326 | } | |
327 | ||
328 | /* Create ust event */ | |
329 | uevent = trace_ust_create_event(&events[i]); | |
330 | if (uevent == NULL) { | |
331 | ret = LTTCOMM_FATAL; | |
7f79d3a1 | 332 | goto error_destroy; |
76d45b40 DG |
333 | } |
334 | ||
335 | /* Create event for the specific PID */ | |
336 | ret = ust_app_enable_event_pid(usess, uchan, uevent, | |
337 | events[i].pid); | |
338 | if (ret < 0) { | |
339 | if (ret == -EEXIST) { | |
340 | ret = LTTCOMM_UST_EVENT_EXIST; | |
7f79d3a1 | 341 | goto error; |
76d45b40 DG |
342 | } else { |
343 | ret = LTTCOMM_UST_ENABLE_FAIL; | |
7f79d3a1 | 344 | goto error_destroy; |
76d45b40 | 345 | } |
76d45b40 DG |
346 | } |
347 | ||
348 | uevent->enabled = 1; | |
349 | /* Add ltt ust event to channel */ | |
350 | rcu_read_lock(); | |
bec39940 | 351 | lttng_ht_add_unique_str(uchan->events, &uevent->node); |
76d45b40 DG |
352 | rcu_read_unlock(); |
353 | } | |
354 | ||
355 | free(events); | |
356 | break; | |
357 | } | |
d78d6610 | 358 | #if 0 |
76d45b40 DG |
359 | case LTTNG_DOMAIN_UST_EXEC_NAME: |
360 | case LTTNG_DOMAIN_UST_PID: | |
361 | case LTTNG_DOMAIN_UST_PID_FOLLOW_CHILDREN: | |
d78d6610 | 362 | #endif |
76d45b40 | 363 | default: |
1ab1ea0b | 364 | ret = LTTCOMM_UND; |
76d45b40 DG |
365 | goto error; |
366 | } | |
367 | ||
368 | return LTTCOMM_OK; | |
369 | ||
7f79d3a1 | 370 | error_destroy: |
76d45b40 | 371 | trace_ust_destroy_event(uevent); |
7f79d3a1 DG |
372 | |
373 | error: | |
374 | free(events); | |
76d45b40 DG |
375 | return ret; |
376 | } | |
377 | ||
2bdd86d4 MD |
378 | /* |
379 | * Enable UST tracepoint event for a channel from a UST session. | |
380 | */ | |
edb67388 DG |
381 | int event_ust_enable_tracepoint(struct ltt_ust_session *usess, int domain, |
382 | struct ltt_ust_channel *uchan, struct lttng_event *event) | |
2bdd86d4 | 383 | { |
fc34caaa | 384 | int ret = LTTCOMM_OK, to_create = 0; |
edb67388 DG |
385 | struct ltt_ust_event *uevent; |
386 | ||
387 | uevent = trace_ust_find_event_by_name(uchan->events, event->name); | |
388 | if (uevent == NULL) { | |
389 | uevent = trace_ust_create_event(event); | |
390 | if (uevent == NULL) { | |
391 | ret = LTTCOMM_FATAL; | |
392 | goto error; | |
393 | } | |
fc34caaa | 394 | /* Valid to set it after the goto error since uevent is still NULL */ |
edb67388 DG |
395 | to_create = 1; |
396 | } | |
2bdd86d4 | 397 | |
7f79d3a1 DG |
398 | if (uevent->enabled) { |
399 | /* It's already enabled so everything is OK */ | |
7f79d3a1 DG |
400 | goto end; |
401 | } | |
402 | ||
fc34caaa DG |
403 | uevent->enabled = 1; |
404 | ||
edb67388 DG |
405 | switch (domain) { |
406 | case LTTNG_DOMAIN_UST: | |
407 | { | |
408 | if (to_create) { | |
409 | /* Create event on all UST registered apps for session */ | |
35a9059d | 410 | ret = ust_app_create_event_glb(usess, uchan, uevent); |
edb67388 DG |
411 | } else { |
412 | /* Enable event on all UST registered apps for session */ | |
35a9059d | 413 | ret = ust_app_enable_event_glb(usess, uchan, uevent); |
edb67388 | 414 | } |
48842b30 | 415 | |
edb67388 DG |
416 | if (ret < 0) { |
417 | if (ret == -EEXIST) { | |
418 | ret = LTTCOMM_UST_EVENT_EXIST; | |
7f79d3a1 | 419 | goto end; |
edb67388 DG |
420 | } else { |
421 | ret = LTTCOMM_UST_ENABLE_FAIL; | |
7f79d3a1 | 422 | goto error; |
edb67388 | 423 | } |
edb67388 | 424 | } |
edb67388 DG |
425 | break; |
426 | } | |
d78d6610 | 427 | #if 0 |
edb67388 DG |
428 | case LTTNG_DOMAIN_UST_EXEC_NAME: |
429 | case LTTNG_DOMAIN_UST_PID: | |
430 | case LTTNG_DOMAIN_UST_PID_FOLLOW_CHILDREN: | |
d78d6610 | 431 | #endif |
edb67388 | 432 | default: |
1ab1ea0b | 433 | ret = LTTCOMM_UND; |
7f79d3a1 | 434 | goto end; |
2bdd86d4 | 435 | } |
48842b30 | 436 | |
7f79d3a1 DG |
437 | if (to_create) { |
438 | rcu_read_lock(); | |
fc34caaa | 439 | /* Add ltt ust event to channel */ |
bec39940 | 440 | lttng_ht_add_unique_str(uchan->events, &uevent->node); |
7f79d3a1 DG |
441 | rcu_read_unlock(); |
442 | } | |
edb67388 | 443 | |
7f79d3a1 DG |
444 | DBG("Event UST %s %s in channel %s", uevent->attr.name, |
445 | to_create ? "created" : "enabled", uchan->name); | |
446 | ||
fc34caaa DG |
447 | ret = LTTCOMM_OK; |
448 | ||
fb89d070 | 449 | end: |
fc34caaa | 450 | return ret; |
edb67388 DG |
451 | |
452 | error: | |
fc34caaa DG |
453 | /* |
454 | * Only destroy event on creation time (not enabling time) because if the | |
455 | * event is found in the channel (to_create == 0), it means that at some | |
456 | * point the enable_event worked and it's thus valid to keep it alive. | |
457 | * Destroying it also implies that we also destroy it's shadow copy to sync | |
458 | * everyone up. | |
459 | */ | |
460 | if (to_create) { | |
461 | /* In this code path, the uevent was not added to the hash table */ | |
462 | trace_ust_destroy_event(uevent); | |
463 | } | |
2bdd86d4 MD |
464 | return ret; |
465 | } | |
466 | ||
7f79d3a1 DG |
467 | /* |
468 | * Disable UST tracepoint of a channel from a UST session. | |
469 | */ | |
470 | int event_ust_disable_tracepoint(struct ltt_ust_session *usess, int domain, | |
471 | struct ltt_ust_channel *uchan, char *event_name) | |
2bdd86d4 MD |
472 | { |
473 | int ret; | |
7f79d3a1 | 474 | struct ltt_ust_event *uevent; |
2bdd86d4 | 475 | |
7f79d3a1 DG |
476 | uevent = trace_ust_find_event_by_name(uchan->events, event_name); |
477 | if (uevent == NULL) { | |
478 | ret = LTTCOMM_UST_EVENT_NOT_FOUND; | |
479 | goto error; | |
2bdd86d4 | 480 | } |
7f79d3a1 DG |
481 | |
482 | if (uevent->enabled == 0) { | |
483 | /* It's already enabled so everything is OK */ | |
484 | ret = LTTCOMM_OK; | |
2bdd86d4 MD |
485 | goto end; |
486 | } | |
7f79d3a1 DG |
487 | |
488 | switch (domain) { | |
489 | case LTTNG_DOMAIN_UST: | |
490 | ret = ust_app_disable_event_glb(usess, uchan, uevent); | |
491 | if (ret < 0 && ret != -EEXIST) { | |
492 | ret = LTTCOMM_UST_DISABLE_FAIL; | |
493 | goto error; | |
494 | } | |
495 | break; | |
d78d6610 | 496 | #if 0 |
7f79d3a1 DG |
497 | case LTTNG_DOMAIN_UST_EXEC_NAME: |
498 | case LTTNG_DOMAIN_UST_PID: | |
499 | case LTTNG_DOMAIN_UST_PID_FOLLOW_CHILDREN: | |
d78d6610 | 500 | #endif |
7f79d3a1 | 501 | default: |
1ab1ea0b | 502 | ret = LTTCOMM_UND; |
7f79d3a1 DG |
503 | goto error; |
504 | } | |
505 | ||
506 | uevent->enabled = 0; | |
2bdd86d4 | 507 | ret = LTTCOMM_OK; |
7f79d3a1 | 508 | |
2bdd86d4 | 509 | end: |
7f79d3a1 DG |
510 | DBG2("Event UST %s disabled in channel %s", uevent->attr.name, |
511 | uchan->name); | |
512 | ||
513 | error: | |
514 | return ret; | |
515 | } | |
516 | ||
517 | /* | |
518 | * Disable all UST tracepoints for a channel from a UST session. | |
519 | */ | |
520 | int event_ust_disable_all_tracepoints(struct ltt_ust_session *usess, int domain, | |
521 | struct ltt_ust_channel *uchan) | |
522 | { | |
6775595e | 523 | int ret, i, size; |
bec39940 | 524 | struct lttng_ht_iter iter; |
7f79d3a1 DG |
525 | struct ltt_ust_event *uevent = NULL; |
526 | struct lttng_event *events = NULL; | |
527 | ||
528 | switch (domain) { | |
529 | case LTTNG_DOMAIN_UST: | |
530 | { | |
531 | /* Disabling existing events */ | |
bec39940 DG |
532 | cds_lfht_for_each_entry(uchan->events->ht, &iter.iter, uevent, |
533 | node.node) { | |
7f79d3a1 DG |
534 | if (uevent->enabled == 1) { |
535 | ret = ust_app_disable_event_glb(usess, uchan, uevent); | |
536 | if (ret < 0) { | |
537 | continue; | |
538 | } | |
539 | uevent->enabled = 0; | |
540 | } | |
541 | } | |
542 | ||
543 | /* Get all UST available events */ | |
544 | size = ust_app_list_events(&events); | |
545 | if (size < 0) { | |
546 | ret = LTTCOMM_UST_LIST_FAIL; | |
547 | goto error; | |
548 | } | |
549 | ||
550 | for (i = 0; i < size; i++) { | |
551 | uevent = trace_ust_find_event_by_name(uchan->events, | |
552 | events[i].name); | |
553 | if (uevent != NULL && uevent->enabled == 1) { | |
554 | ret = ust_app_disable_event_pid(usess, uchan, uevent, | |
555 | events[i].pid); | |
556 | if (ret < 0 && ret != -EEXIST) { | |
557 | ret = LTTCOMM_UST_DISABLE_FAIL; | |
558 | goto error; | |
559 | } | |
560 | uevent->enabled = 0; | |
561 | continue; | |
562 | } | |
563 | } | |
564 | ||
565 | free(events); | |
566 | break; | |
567 | } | |
d78d6610 | 568 | #if 0 |
7f79d3a1 DG |
569 | case LTTNG_DOMAIN_UST_EXEC_NAME: |
570 | case LTTNG_DOMAIN_UST_PID: | |
571 | case LTTNG_DOMAIN_UST_PID_FOLLOW_CHILDREN: | |
d78d6610 | 572 | #endif |
7f79d3a1 | 573 | default: |
1ab1ea0b | 574 | ret = LTTCOMM_UND; |
7f79d3a1 DG |
575 | goto error; |
576 | } | |
577 | ||
578 | return LTTCOMM_OK; | |
579 | ||
580 | error: | |
581 | free(events); | |
2bdd86d4 MD |
582 | return ret; |
583 | } |