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f4681817 MD |
1 | /* |
2 | * lttng-ust-abi.c | |
3 | * | |
4 | * Copyright 2010-2011 (c) - Mathieu Desnoyers <mathieu.desnoyers@efficios.com> | |
5 | * | |
6 | * LTTng UST ABI | |
7 | * | |
8 | * Mimic system calls for: | |
9 | * - session creation, returns an object descriptor or failure. | |
10 | * - channel creation, returns an object descriptor or failure. | |
11 | * - Operates on a session object descriptor | |
12 | * - Takes all channel options as parameters. | |
13 | * - stream get, returns an object descriptor or failure. | |
14 | * - Operates on a channel object descriptor. | |
15 | * - stream notifier get, returns an object descriptor or failure. | |
16 | * - Operates on a channel object descriptor. | |
17 | * - event creation, returns an object descriptor or failure. | |
18 | * - Operates on a channel object descriptor | |
19 | * - Takes an event name as parameter | |
20 | * - Takes an instrumentation source as parameter | |
21 | * - e.g. tracepoints, dynamic_probes... | |
22 | * - Takes instrumentation source specific arguments. | |
23 | * | |
24 | * Dual LGPL v2.1/GPL v2 license. | |
25 | */ | |
26 | ||
4318ae1b | 27 | #include <lttng/ust-abi.h> |
f4681817 MD |
28 | #include <urcu/compiler.h> |
29 | #include <urcu/list.h> | |
4318ae1b | 30 | #include <lttng/ust-events.h> |
23c8854a | 31 | #include <lttng/ust-version.h> |
44c72f10 MD |
32 | #include <usterr-signal-safe.h> |
33 | #include <helper.h> | |
f4681817 | 34 | #include "ltt-tracer.h" |
4ab44fbe MD |
35 | #include "tracepoint-internal.h" |
36 | ||
45e9e699 MD |
37 | static int lttng_ust_abi_close_in_progress; |
38 | ||
51489cad MD |
39 | static |
40 | int lttng_abi_tracepoint_list(void); | |
41 | ||
f4681817 MD |
42 | /* |
43 | * Object descriptor table. Should be protected from concurrent access | |
44 | * by the caller. | |
45 | */ | |
46 | ||
b61ce3b2 | 47 | struct lttng_ust_obj { |
f4681817 MD |
48 | union { |
49 | struct { | |
50 | void *private_data; | |
b61ce3b2 | 51 | const struct lttng_ust_objd_ops *ops; |
f4681817 MD |
52 | int f_count; |
53 | } s; | |
54 | int freelist_next; /* offset freelist. end is -1. */ | |
55 | } u; | |
56 | }; | |
57 | ||
b61ce3b2 MD |
58 | struct lttng_ust_objd_table { |
59 | struct lttng_ust_obj *array; | |
f4681817 MD |
60 | unsigned int len, allocated_len; |
61 | int freelist_head; /* offset freelist head. end is -1 */ | |
62 | }; | |
63 | ||
b61ce3b2 | 64 | static struct lttng_ust_objd_table objd_table = { |
f4681817 MD |
65 | .freelist_head = -1, |
66 | }; | |
67 | ||
68 | static | |
b61ce3b2 | 69 | int objd_alloc(void *private_data, const struct lttng_ust_objd_ops *ops) |
f4681817 | 70 | { |
b61ce3b2 | 71 | struct lttng_ust_obj *obj; |
f4681817 MD |
72 | |
73 | if (objd_table.freelist_head != -1) { | |
74 | obj = &objd_table.array[objd_table.freelist_head]; | |
75 | objd_table.freelist_head = obj->u.freelist_next; | |
76 | goto end; | |
77 | } | |
78 | ||
79 | if (objd_table.len >= objd_table.allocated_len) { | |
80 | unsigned int new_allocated_len, old_allocated_len; | |
b61ce3b2 | 81 | struct lttng_ust_obj *new_table, *old_table; |
f4681817 MD |
82 | |
83 | old_allocated_len = objd_table.allocated_len; | |
84 | old_table = objd_table.array; | |
85 | if (!old_allocated_len) | |
86 | new_allocated_len = 1; | |
87 | else | |
88 | new_allocated_len = old_allocated_len << 1; | |
b61ce3b2 | 89 | new_table = zmalloc(sizeof(struct lttng_ust_obj) * new_allocated_len); |
f4681817 MD |
90 | if (!new_table) |
91 | return -ENOMEM; | |
92 | memcpy(new_table, old_table, | |
b61ce3b2 | 93 | sizeof(struct lttng_ust_obj) * old_allocated_len); |
f4681817 MD |
94 | free(old_table); |
95 | objd_table.array = new_table; | |
96 | objd_table.allocated_len = new_allocated_len; | |
97 | } | |
98 | obj = &objd_table.array[objd_table.len]; | |
99 | objd_table.len++; | |
100 | end: | |
101 | obj->u.s.private_data = private_data; | |
102 | obj->u.s.ops = ops; | |
a4be8962 MD |
103 | obj->u.s.f_count = 2; /* count == 1 : object is allocated */ |
104 | /* count == 2 : allocated + hold ref */ | |
f4681817 MD |
105 | return obj - objd_table.array; |
106 | } | |
107 | ||
108 | static | |
b61ce3b2 | 109 | struct lttng_ust_obj *_objd_get(int id) |
f4681817 MD |
110 | { |
111 | if (id >= objd_table.len) | |
112 | return NULL; | |
a4be8962 MD |
113 | if (!objd_table.array[id].u.s.f_count) |
114 | return NULL; | |
f4681817 MD |
115 | return &objd_table.array[id]; |
116 | } | |
117 | ||
118 | static | |
119 | void *objd_private(int id) | |
120 | { | |
b61ce3b2 | 121 | struct lttng_ust_obj *obj = _objd_get(id); |
f4681817 MD |
122 | assert(obj); |
123 | return obj->u.s.private_data; | |
124 | } | |
125 | ||
126 | static | |
127 | void objd_set_private(int id, void *private_data) | |
128 | { | |
b61ce3b2 | 129 | struct lttng_ust_obj *obj = _objd_get(id); |
f4681817 MD |
130 | assert(obj); |
131 | obj->u.s.private_data = private_data; | |
132 | } | |
133 | ||
b61ce3b2 | 134 | const struct lttng_ust_objd_ops *objd_ops(int id) |
f4681817 | 135 | { |
b61ce3b2 | 136 | struct lttng_ust_obj *obj = _objd_get(id); |
46050b1a | 137 | |
a4be8962 MD |
138 | if (!obj) |
139 | return NULL; | |
f4681817 MD |
140 | return obj->u.s.ops; |
141 | } | |
142 | ||
143 | static | |
144 | void objd_free(int id) | |
145 | { | |
b61ce3b2 | 146 | struct lttng_ust_obj *obj = _objd_get(id); |
f4681817 MD |
147 | |
148 | assert(obj); | |
149 | obj->u.freelist_next = objd_table.freelist_head; | |
150 | objd_table.freelist_head = obj - objd_table.array; | |
a4be8962 MD |
151 | assert(obj->u.s.f_count == 1); |
152 | obj->u.s.f_count = 0; /* deallocated */ | |
f4681817 MD |
153 | } |
154 | ||
155 | static | |
156 | void objd_ref(int id) | |
157 | { | |
b61ce3b2 | 158 | struct lttng_ust_obj *obj = _objd_get(id); |
f4681817 MD |
159 | obj->u.s.f_count++; |
160 | } | |
161 | ||
d4419b81 | 162 | int lttng_ust_objd_unref(int id) |
f4681817 | 163 | { |
b61ce3b2 | 164 | struct lttng_ust_obj *obj = _objd_get(id); |
f4681817 | 165 | |
1ea11eab MD |
166 | if (!obj) |
167 | return -EINVAL; | |
a4be8962 MD |
168 | if (obj->u.s.f_count == 1) { |
169 | ERR("Reference counting error\n"); | |
170 | return -EINVAL; | |
171 | } | |
172 | if ((--obj->u.s.f_count) == 1) { | |
b61ce3b2 | 173 | const struct lttng_ust_objd_ops *ops = objd_ops(id); |
a4be8962 | 174 | |
f4681817 MD |
175 | if (ops->release) |
176 | ops->release(id); | |
177 | objd_free(id); | |
178 | } | |
1ea11eab | 179 | return 0; |
f4681817 MD |
180 | } |
181 | ||
182 | static | |
183 | void objd_table_destroy(void) | |
184 | { | |
a4be8962 MD |
185 | int i; |
186 | ||
fb50c39d | 187 | for (i = 0; i < objd_table.allocated_len; i++) |
d4419b81 | 188 | (void) lttng_ust_objd_unref(i); |
f4681817 | 189 | free(objd_table.array); |
02fb3381 MD |
190 | objd_table.array = NULL; |
191 | objd_table.len = 0; | |
192 | objd_table.allocated_len = 0; | |
17dfb34b | 193 | objd_table.freelist_head = -1; |
f4681817 MD |
194 | } |
195 | ||
196 | /* | |
197 | * This is LTTng's own personal way to create an ABI for sessiond. | |
198 | * We send commands over a socket. | |
199 | */ | |
200 | ||
b61ce3b2 MD |
201 | static const struct lttng_ust_objd_ops lttng_ops; |
202 | static const struct lttng_ust_objd_ops lttng_session_ops; | |
203 | static const struct lttng_ust_objd_ops lttng_channel_ops; | |
204 | static const struct lttng_ust_objd_ops lttng_metadata_ops; | |
205 | static const struct lttng_ust_objd_ops lttng_event_ops; | |
1f18504e | 206 | static const struct lttng_ust_objd_ops lttng_loglevel_ops; |
e6c12e3d | 207 | static const struct lttng_ust_objd_ops lttng_wildcard_ops; |
b61ce3b2 | 208 | static const struct lttng_ust_objd_ops lib_ring_buffer_objd_ops; |
51489cad | 209 | static const struct lttng_ust_objd_ops lttng_tracepoint_list_ops; |
f4681817 MD |
210 | |
211 | enum channel_type { | |
212 | PER_CPU_CHANNEL, | |
213 | METADATA_CHANNEL, | |
214 | }; | |
215 | ||
46050b1a MD |
216 | int lttng_abi_create_root_handle(void) |
217 | { | |
218 | int root_handle; | |
219 | ||
220 | root_handle = objd_alloc(NULL, <tng_ops); | |
46050b1a MD |
221 | return root_handle; |
222 | } | |
223 | ||
818173b9 | 224 | static |
f4681817 MD |
225 | int lttng_abi_create_session(void) |
226 | { | |
227 | struct ltt_session *session; | |
228 | int session_objd, ret; | |
229 | ||
230 | session = ltt_session_create(); | |
231 | if (!session) | |
232 | return -ENOMEM; | |
233 | session_objd = objd_alloc(session, <tng_session_ops); | |
234 | if (session_objd < 0) { | |
235 | ret = session_objd; | |
236 | goto objd_error; | |
237 | } | |
238 | session->objd = session_objd; | |
239 | return session_objd; | |
240 | ||
241 | objd_error: | |
242 | ltt_session_destroy(session); | |
243 | return ret; | |
244 | } | |
245 | ||
f4681817 MD |
246 | static |
247 | long lttng_abi_tracer_version(int objd, | |
248 | struct lttng_ust_tracer_version *v) | |
249 | { | |
23c8854a MD |
250 | v->major = LTTNG_UST_MAJOR_VERSION; |
251 | v->minor = LTTNG_UST_MINOR_VERSION; | |
252 | v->patchlevel = LTTNG_UST_PATCHLEVEL_VERSION; | |
f4681817 MD |
253 | return 0; |
254 | } | |
255 | ||
256 | static | |
257 | long lttng_abi_add_context(int objd, | |
258 | struct lttng_ust_context *context_param, | |
259 | struct lttng_ctx **ctx, struct ltt_session *session) | |
260 | { | |
261 | if (session->been_active) | |
262 | return -EPERM; | |
263 | ||
264 | switch (context_param->ctx) { | |
8de38cf7 MD |
265 | case LTTNG_UST_CONTEXT_PTHREAD_ID: |
266 | return lttng_add_pthread_id_to_ctx(ctx); | |
3b402b40 MD |
267 | case LTTNG_UST_CONTEXT_VTID: |
268 | return lttng_add_vtid_to_ctx(ctx); | |
c1ef86f0 MD |
269 | case LTTNG_UST_CONTEXT_VPID: |
270 | return lttng_add_vpid_to_ctx(ctx); | |
4847e9bb MD |
271 | case LTTNG_UST_CONTEXT_PROCNAME: |
272 | return lttng_add_procname_to_ctx(ctx); | |
f4681817 MD |
273 | default: |
274 | return -EINVAL; | |
275 | } | |
276 | } | |
277 | ||
278 | /** | |
279 | * lttng_cmd - lttng control through socket commands | |
280 | * | |
281 | * @objd: the object descriptor | |
282 | * @cmd: the command | |
283 | * @arg: command arg | |
ef9ff354 | 284 | * @uargs: UST arguments (internal) |
f4681817 MD |
285 | * |
286 | * This descriptor implements lttng commands: | |
287 | * LTTNG_UST_SESSION | |
288 | * Returns a LTTng trace session object descriptor | |
289 | * LTTNG_UST_TRACER_VERSION | |
290 | * Returns the LTTng kernel tracer version | |
291 | * LTTNG_UST_TRACEPOINT_LIST | |
292 | * Returns a file descriptor listing available tracepoints | |
293 | * LTTNG_UST_WAIT_QUIESCENT | |
294 | * Returns after all previously running probes have completed | |
295 | * | |
296 | * The returned session will be deleted when its file descriptor is closed. | |
297 | */ | |
298 | static | |
ef9ff354 MD |
299 | long lttng_cmd(int objd, unsigned int cmd, unsigned long arg, |
300 | union ust_args *uargs) | |
f4681817 MD |
301 | { |
302 | switch (cmd) { | |
303 | case LTTNG_UST_SESSION: | |
304 | return lttng_abi_create_session(); | |
305 | case LTTNG_UST_TRACER_VERSION: | |
306 | return lttng_abi_tracer_version(objd, | |
307 | (struct lttng_ust_tracer_version *) arg); | |
308 | case LTTNG_UST_TRACEPOINT_LIST: | |
51489cad | 309 | return lttng_abi_tracepoint_list(); |
f4681817 MD |
310 | case LTTNG_UST_WAIT_QUIESCENT: |
311 | synchronize_trace(); | |
312 | return 0; | |
313 | default: | |
314 | return -EINVAL; | |
315 | } | |
316 | } | |
317 | ||
b61ce3b2 | 318 | static const struct lttng_ust_objd_ops lttng_ops = { |
f4681817 MD |
319 | .cmd = lttng_cmd, |
320 | }; | |
321 | ||
322 | /* | |
323 | * We tolerate no failure in this function (if one happens, we print a dmesg | |
324 | * error, but cannot return any error, because the channel information is | |
325 | * invariant. | |
326 | */ | |
327 | static | |
328 | void lttng_metadata_create_events(int channel_objd) | |
329 | { | |
330 | struct ltt_channel *channel = objd_private(channel_objd); | |
331 | static struct lttng_ust_event metadata_params = { | |
332 | .instrumentation = LTTNG_UST_TRACEPOINT, | |
a4ada9b8 | 333 | .name = "lttng_ust:metadata", |
f4681817 MD |
334 | }; |
335 | struct ltt_event *event; | |
576599a0 | 336 | int ret; |
f4681817 MD |
337 | |
338 | /* | |
339 | * We tolerate no failure path after event creation. It will stay | |
340 | * invariant for the rest of the session. | |
341 | */ | |
576599a0 MD |
342 | ret = ltt_event_create(channel, &metadata_params, NULL, &event); |
343 | if (ret < 0) { | |
f4681817 MD |
344 | goto create_error; |
345 | } | |
346 | return; | |
347 | ||
348 | create_error: | |
349 | WARN_ON(1); | |
350 | return; /* not allowed to return error */ | |
351 | } | |
352 | ||
f4681817 MD |
353 | int lttng_abi_create_channel(int session_objd, |
354 | struct lttng_ust_channel *chan_param, | |
ef9ff354 MD |
355 | enum channel_type channel_type, |
356 | union ust_args *uargs) | |
f4681817 MD |
357 | { |
358 | struct ltt_session *session = objd_private(session_objd); | |
b61ce3b2 | 359 | const struct lttng_ust_objd_ops *ops; |
f4681817 MD |
360 | const char *transport_name; |
361 | struct ltt_channel *chan; | |
362 | int chan_objd; | |
363 | int ret = 0; | |
d028eddb | 364 | struct ltt_channel chan_priv_init; |
f4681817 | 365 | |
f4681817 MD |
366 | switch (channel_type) { |
367 | case PER_CPU_CHANNEL: | |
368 | if (chan_param->output == LTTNG_UST_MMAP) { | |
369 | transport_name = chan_param->overwrite ? | |
370 | "relay-overwrite-mmap" : "relay-discard-mmap"; | |
371 | } else { | |
372 | return -EINVAL; | |
373 | } | |
374 | ops = <tng_channel_ops; | |
375 | break; | |
376 | case METADATA_CHANNEL: | |
377 | if (chan_param->output == LTTNG_UST_MMAP) | |
378 | transport_name = "relay-metadata-mmap"; | |
379 | else | |
380 | return -EINVAL; | |
381 | ops = <tng_metadata_ops; | |
382 | break; | |
383 | default: | |
384 | transport_name = "<unknown>"; | |
fe38d4af MD |
385 | return -EINVAL; |
386 | } | |
387 | chan_objd = objd_alloc(NULL, ops); | |
388 | if (chan_objd < 0) { | |
389 | ret = chan_objd; | |
390 | goto objd_error; | |
f4681817 | 391 | } |
d028eddb MD |
392 | memset(&chan_priv_init, 0, sizeof(chan_priv_init)); |
393 | /* Copy of session UUID for consumer (availability through shm) */ | |
394 | memcpy(chan_priv_init.uuid, session->uuid, sizeof(session->uuid)); | |
395 | ||
f4681817 MD |
396 | /* |
397 | * We tolerate no failure path after channel creation. It will stay | |
398 | * invariant for the rest of the session. | |
399 | */ | |
400 | chan = ltt_channel_create(session, transport_name, NULL, | |
401 | chan_param->subbuf_size, | |
402 | chan_param->num_subbuf, | |
403 | chan_param->switch_timer_interval, | |
193183fb | 404 | chan_param->read_timer_interval, |
ef9ff354 MD |
405 | &uargs->channel.shm_fd, |
406 | &uargs->channel.wait_fd, | |
407 | &uargs->channel.memory_map_size, | |
d028eddb | 408 | &chan_priv_init); |
f4681817 MD |
409 | if (!chan) { |
410 | ret = -EINVAL; | |
411 | goto chan_error; | |
412 | } | |
413 | objd_set_private(chan_objd, chan); | |
414 | chan->objd = chan_objd; | |
415 | if (channel_type == METADATA_CHANNEL) { | |
416 | session->metadata = chan; | |
417 | lttng_metadata_create_events(chan_objd); | |
418 | } | |
f4681817 MD |
419 | /* The channel created holds a reference on the session */ |
420 | objd_ref(session_objd); | |
421 | ||
422 | return chan_objd; | |
423 | ||
424 | chan_error: | |
1ea11eab MD |
425 | { |
426 | int err; | |
427 | ||
d4419b81 | 428 | err = lttng_ust_objd_unref(chan_objd); |
1ea11eab MD |
429 | assert(!err); |
430 | } | |
f4681817 MD |
431 | objd_error: |
432 | return ret; | |
433 | } | |
434 | ||
435 | /** | |
436 | * lttng_session_cmd - lttng session object command | |
437 | * | |
438 | * @obj: the object | |
439 | * @cmd: the command | |
440 | * @arg: command arg | |
ef9ff354 | 441 | * @uargs: UST arguments (internal) |
f4681817 MD |
442 | * |
443 | * This descriptor implements lttng commands: | |
444 | * LTTNG_UST_CHANNEL | |
445 | * Returns a LTTng channel object descriptor | |
446 | * LTTNG_UST_ENABLE | |
447 | * Enables tracing for a session (weak enable) | |
448 | * LTTNG_UST_DISABLE | |
449 | * Disables tracing for a session (strong disable) | |
450 | * LTTNG_UST_METADATA | |
451 | * Returns a LTTng metadata object descriptor | |
452 | * | |
453 | * The returned channel will be deleted when its file descriptor is closed. | |
454 | */ | |
455 | static | |
ef9ff354 MD |
456 | long lttng_session_cmd(int objd, unsigned int cmd, unsigned long arg, |
457 | union ust_args *uargs) | |
f4681817 MD |
458 | { |
459 | struct ltt_session *session = objd_private(objd); | |
460 | ||
461 | switch (cmd) { | |
462 | case LTTNG_UST_CHANNEL: | |
463 | return lttng_abi_create_channel(objd, | |
464 | (struct lttng_ust_channel *) arg, | |
ef9ff354 | 465 | PER_CPU_CHANNEL, uargs); |
f4681817 MD |
466 | case LTTNG_UST_SESSION_START: |
467 | case LTTNG_UST_ENABLE: | |
468 | return ltt_session_enable(session); | |
469 | case LTTNG_UST_SESSION_STOP: | |
470 | case LTTNG_UST_DISABLE: | |
471 | return ltt_session_disable(session); | |
472 | case LTTNG_UST_METADATA: | |
473 | return lttng_abi_create_channel(objd, | |
474 | (struct lttng_ust_channel *) arg, | |
ef9ff354 | 475 | METADATA_CHANNEL, uargs); |
f4681817 MD |
476 | default: |
477 | return -EINVAL; | |
478 | } | |
479 | } | |
480 | ||
481 | /* | |
482 | * Called when the last file reference is dropped. | |
483 | * | |
484 | * Big fat note: channels and events are invariant for the whole session after | |
485 | * their creation. So this session destruction also destroys all channel and | |
486 | * event structures specific to this session (they are not destroyed when their | |
487 | * individual file is released). | |
488 | */ | |
489 | static | |
1ea11eab | 490 | int lttng_release_session(int objd) |
f4681817 MD |
491 | { |
492 | struct ltt_session *session = objd_private(objd); | |
493 | ||
1ea11eab | 494 | if (session) { |
f4681817 | 495 | ltt_session_destroy(session); |
1ea11eab MD |
496 | return 0; |
497 | } else { | |
498 | return -EINVAL; | |
499 | } | |
f4681817 MD |
500 | } |
501 | ||
b61ce3b2 | 502 | static const struct lttng_ust_objd_ops lttng_session_ops = { |
1ea11eab | 503 | .release = lttng_release_session, |
f4681817 MD |
504 | .cmd = lttng_session_cmd, |
505 | }; | |
506 | ||
51489cad | 507 | static |
ef9ff354 MD |
508 | long lttng_tracepoint_list_cmd(int objd, unsigned int cmd, unsigned long arg, |
509 | union ust_args *uargs) | |
51489cad | 510 | { |
c8fcf224 | 511 | struct lttng_ust_tracepoint_list *list = objd_private(objd); |
cbef6901 MD |
512 | struct lttng_ust_tracepoint_iter *tp = |
513 | (struct lttng_ust_tracepoint_iter *) arg; | |
c8fcf224 | 514 | struct lttng_ust_tracepoint_iter *iter; |
51489cad MD |
515 | |
516 | switch (cmd) { | |
517 | case LTTNG_UST_TRACEPOINT_LIST_GET: | |
c8fcf224 MD |
518 | { |
519 | retry: | |
520 | iter = lttng_ust_tracepoint_list_get_iter_next(list); | |
521 | if (!iter) | |
b115631f | 522 | return -ENOENT; |
c8fcf224 MD |
523 | if (!strcmp(iter->name, "lttng_ust:metadata")) |
524 | goto retry; | |
525 | memcpy(tp, iter, sizeof(*tp)); | |
51489cad | 526 | return 0; |
c8fcf224 | 527 | } |
51489cad MD |
528 | default: |
529 | return -EINVAL; | |
530 | } | |
531 | } | |
532 | ||
533 | static | |
534 | int lttng_abi_tracepoint_list(void) | |
535 | { | |
536 | int list_objd, ret; | |
c8fcf224 | 537 | struct lttng_ust_tracepoint_list *list; |
51489cad MD |
538 | |
539 | list_objd = objd_alloc(NULL, <tng_tracepoint_list_ops); | |
540 | if (list_objd < 0) { | |
541 | ret = list_objd; | |
542 | goto objd_error; | |
543 | } | |
544 | list = zmalloc(sizeof(*list)); | |
545 | if (!list) { | |
546 | ret = -ENOMEM; | |
547 | goto alloc_error; | |
548 | } | |
549 | objd_set_private(list_objd, list); | |
550 | ||
c8fcf224 MD |
551 | /* populate list by walking on all registered probes. */ |
552 | ret = ltt_probes_get_event_list(list); | |
553 | if (ret) { | |
554 | goto list_error; | |
555 | } | |
51489cad MD |
556 | return list_objd; |
557 | ||
c8fcf224 MD |
558 | list_error: |
559 | free(list); | |
51489cad MD |
560 | alloc_error: |
561 | { | |
562 | int err; | |
563 | ||
564 | err = lttng_ust_objd_unref(list_objd); | |
565 | assert(!err); | |
566 | } | |
567 | objd_error: | |
568 | return ret; | |
569 | } | |
570 | ||
571 | static | |
572 | int lttng_release_tracepoint_list(int objd) | |
573 | { | |
c8fcf224 | 574 | struct lttng_ust_tracepoint_list *list = objd_private(objd); |
51489cad MD |
575 | |
576 | if (list) { | |
c8fcf224 | 577 | ltt_probes_prune_event_list(list); |
51489cad MD |
578 | free(list); |
579 | return 0; | |
580 | } else { | |
581 | return -EINVAL; | |
582 | } | |
583 | } | |
584 | ||
585 | static const struct lttng_ust_objd_ops lttng_tracepoint_list_ops = { | |
586 | .release = lttng_release_tracepoint_list, | |
587 | .cmd = lttng_tracepoint_list_cmd, | |
588 | }; | |
589 | ||
381c0f1e | 590 | struct stream_priv_data { |
4cfec15c | 591 | struct lttng_ust_lib_ring_buffer *buf; |
381c0f1e MD |
592 | struct ltt_channel *ltt_chan; |
593 | }; | |
594 | ||
f4681817 | 595 | static |
ef9ff354 MD |
596 | int lttng_abi_open_stream(int channel_objd, struct lttng_ust_stream *info, |
597 | union ust_args *uargs) | |
f4681817 MD |
598 | { |
599 | struct ltt_channel *channel = objd_private(channel_objd); | |
4cfec15c | 600 | struct lttng_ust_lib_ring_buffer *buf; |
381c0f1e | 601 | struct stream_priv_data *priv; |
f4681817 MD |
602 | int stream_objd, ret; |
603 | ||
381c0f1e | 604 | buf = channel->ops->buffer_read_open(channel->chan, channel->handle, |
ef9ff354 MD |
605 | &uargs->stream.shm_fd, |
606 | &uargs->stream.wait_fd, | |
607 | &uargs->stream.memory_map_size); | |
f4681817 MD |
608 | if (!buf) |
609 | return -ENOENT; | |
610 | ||
381c0f1e MD |
611 | priv = zmalloc(sizeof(*priv)); |
612 | if (!priv) { | |
613 | ret = -ENOMEM; | |
614 | goto alloc_error; | |
615 | } | |
616 | priv->buf = buf; | |
617 | priv->ltt_chan = channel; | |
618 | stream_objd = objd_alloc(priv, &lib_ring_buffer_objd_ops); | |
f4681817 MD |
619 | if (stream_objd < 0) { |
620 | ret = stream_objd; | |
621 | goto objd_error; | |
622 | } | |
381c0f1e MD |
623 | /* Hold a reference on the channel object descriptor */ |
624 | objd_ref(channel_objd); | |
f4681817 MD |
625 | return stream_objd; |
626 | ||
627 | objd_error: | |
381c0f1e MD |
628 | free(priv); |
629 | alloc_error: | |
630 | channel->ops->buffer_read_close(buf, channel->handle); | |
f4681817 MD |
631 | return ret; |
632 | } | |
f4681817 MD |
633 | |
634 | static | |
635 | int lttng_abi_create_event(int channel_objd, | |
636 | struct lttng_ust_event *event_param) | |
637 | { | |
638 | struct ltt_channel *channel = objd_private(channel_objd); | |
639 | struct ltt_event *event; | |
640 | int event_objd, ret; | |
641 | ||
642 | event_param->name[LTTNG_UST_SYM_NAME_LEN - 1] = '\0'; | |
643 | event_objd = objd_alloc(NULL, <tng_event_ops); | |
644 | if (event_objd < 0) { | |
645 | ret = event_objd; | |
646 | goto objd_error; | |
647 | } | |
648 | /* | |
649 | * We tolerate no failure path after event creation. It will stay | |
650 | * invariant for the rest of the session. | |
651 | */ | |
576599a0 MD |
652 | ret = ltt_event_create(channel, event_param, NULL, &event); |
653 | if (ret < 0) { | |
f4681817 MD |
654 | goto event_error; |
655 | } | |
656 | objd_set_private(event_objd, event); | |
657 | /* The event holds a reference on the channel */ | |
658 | objd_ref(channel_objd); | |
659 | return event_objd; | |
660 | ||
661 | event_error: | |
1ea11eab MD |
662 | { |
663 | int err; | |
664 | ||
d4419b81 | 665 | err = lttng_ust_objd_unref(event_objd); |
1ea11eab MD |
666 | assert(!err); |
667 | } | |
f4681817 MD |
668 | objd_error: |
669 | return ret; | |
670 | } | |
671 | ||
1f18504e MD |
672 | static |
673 | int lttng_abi_create_loglevel(int channel_objd, | |
674 | struct lttng_ust_event *event_param) | |
675 | { | |
676 | struct ltt_channel *channel = objd_private(channel_objd); | |
574a6217 | 677 | struct session_loglevel *loglevel; |
1f18504e MD |
678 | int loglevel_objd, ret; |
679 | ||
680 | event_param->name[LTTNG_UST_SYM_NAME_LEN - 1] = '\0'; | |
681 | loglevel_objd = objd_alloc(NULL, <tng_loglevel_ops); | |
682 | if (loglevel_objd < 0) { | |
683 | ret = loglevel_objd; | |
684 | goto objd_error; | |
685 | } | |
686 | /* | |
687 | * We tolerate no failure path after loglevel creation. It will | |
688 | * stay invariant for the rest of the session. | |
689 | */ | |
690 | ret = ltt_loglevel_create(channel, event_param, &loglevel); | |
691 | if (ret < 0) { | |
692 | goto loglevel_error; | |
693 | } | |
694 | objd_set_private(loglevel_objd, loglevel); | |
695 | /* The loglevel holds a reference on the channel */ | |
696 | objd_ref(channel_objd); | |
697 | return loglevel_objd; | |
698 | ||
699 | loglevel_error: | |
700 | { | |
701 | int err; | |
702 | ||
703 | err = lttng_ust_objd_unref(loglevel_objd); | |
704 | assert(!err); | |
705 | } | |
706 | objd_error: | |
707 | return ret; | |
708 | } | |
709 | ||
e6c12e3d MD |
710 | static |
711 | int lttng_abi_create_wildcard(int channel_objd, | |
712 | struct lttng_ust_event *event_param) | |
713 | { | |
714 | struct ltt_channel *channel = objd_private(channel_objd); | |
715 | struct session_wildcard *wildcard; | |
716 | int wildcard_objd, ret; | |
717 | ||
718 | event_param->name[LTTNG_UST_SYM_NAME_LEN - 1] = '\0'; | |
719 | wildcard_objd = objd_alloc(NULL, <tng_wildcard_ops); | |
720 | if (wildcard_objd < 0) { | |
721 | ret = wildcard_objd; | |
722 | goto objd_error; | |
723 | } | |
724 | /* | |
725 | * We tolerate no failure path after wildcard creation. It will | |
726 | * stay invariant for the rest of the session. | |
727 | */ | |
728 | ret = ltt_wildcard_create(channel, event_param, &wildcard); | |
729 | if (ret < 0) { | |
730 | goto wildcard_error; | |
731 | } | |
732 | objd_set_private(wildcard_objd, wildcard); | |
733 | /* The wildcard holds a reference on the channel */ | |
734 | objd_ref(channel_objd); | |
735 | return wildcard_objd; | |
736 | ||
737 | wildcard_error: | |
738 | { | |
739 | int err; | |
740 | ||
741 | err = lttng_ust_objd_unref(wildcard_objd); | |
742 | assert(!err); | |
743 | } | |
744 | objd_error: | |
745 | return ret; | |
746 | } | |
747 | ||
f4681817 MD |
748 | /** |
749 | * lttng_channel_cmd - lttng control through object descriptors | |
750 | * | |
751 | * @objd: the object descriptor | |
752 | * @cmd: the command | |
753 | * @arg: command arg | |
ef9ff354 | 754 | * @uargs: UST arguments (internal) |
f4681817 MD |
755 | * |
756 | * This object descriptor implements lttng commands: | |
757 | * LTTNG_UST_STREAM | |
758 | * Returns an event stream object descriptor or failure. | |
759 | * (typically, one event stream records events from one CPU) | |
760 | * LTTNG_UST_EVENT | |
761 | * Returns an event object descriptor or failure. | |
762 | * LTTNG_UST_CONTEXT | |
763 | * Prepend a context field to each event in the channel | |
764 | * LTTNG_UST_ENABLE | |
765 | * Enable recording for events in this channel (weak enable) | |
766 | * LTTNG_UST_DISABLE | |
767 | * Disable recording for events in this channel (strong disable) | |
768 | * | |
769 | * Channel and event file descriptors also hold a reference on the session. | |
770 | */ | |
771 | static | |
ef9ff354 MD |
772 | long lttng_channel_cmd(int objd, unsigned int cmd, unsigned long arg, |
773 | union ust_args *uargs) | |
f4681817 MD |
774 | { |
775 | struct ltt_channel *channel = objd_private(objd); | |
776 | ||
777 | switch (cmd) { | |
778 | case LTTNG_UST_STREAM: | |
381c0f1e MD |
779 | { |
780 | struct lttng_ust_stream *stream; | |
781 | ||
782 | stream = (struct lttng_ust_stream *) arg; | |
783 | /* stream used as output */ | |
ef9ff354 | 784 | return lttng_abi_open_stream(objd, stream, uargs); |
381c0f1e | 785 | } |
f4681817 | 786 | case LTTNG_UST_EVENT: |
1f18504e MD |
787 | { |
788 | struct lttng_ust_event *event_param = | |
789 | (struct lttng_ust_event *) arg; | |
790 | if (event_param->instrumentation == LTTNG_UST_TRACEPOINT_LOGLEVEL) { | |
791 | return lttng_abi_create_loglevel(objd, event_param); | |
792 | } else { | |
e6c12e3d MD |
793 | if (event_param->name[strlen(event_param->name) - 1] == '*') { |
794 | /* If ends with wildcard, create wildcard. */ | |
795 | return lttng_abi_create_wildcard(objd, event_param); | |
796 | } else { | |
797 | return lttng_abi_create_event(objd, event_param); | |
798 | } | |
1f18504e MD |
799 | } |
800 | } | |
f4681817 MD |
801 | case LTTNG_UST_CONTEXT: |
802 | return lttng_abi_add_context(objd, | |
803 | (struct lttng_ust_context *) arg, | |
804 | &channel->ctx, channel->session); | |
805 | case LTTNG_UST_ENABLE: | |
806 | return ltt_channel_enable(channel); | |
807 | case LTTNG_UST_DISABLE: | |
808 | return ltt_channel_disable(channel); | |
43d330a4 MD |
809 | case LTTNG_UST_FLUSH_BUFFER: |
810 | return channel->ops->flush_buffer(channel->chan, channel->handle); | |
f4681817 MD |
811 | default: |
812 | return -EINVAL; | |
813 | } | |
814 | } | |
815 | ||
816 | /** | |
817 | * lttng_metadata_cmd - lttng control through object descriptors | |
818 | * | |
819 | * @objd: the object descriptor | |
820 | * @cmd: the command | |
821 | * @arg: command arg | |
ef9ff354 | 822 | * @uargs: UST arguments (internal) |
f4681817 MD |
823 | * |
824 | * This object descriptor implements lttng commands: | |
825 | * LTTNG_UST_STREAM | |
826 | * Returns an event stream file descriptor or failure. | |
827 | * | |
828 | * Channel and event file descriptors also hold a reference on the session. | |
829 | */ | |
830 | static | |
ef9ff354 MD |
831 | long lttng_metadata_cmd(int objd, unsigned int cmd, unsigned long arg, |
832 | union ust_args *uargs) | |
f4681817 | 833 | { |
43861eab MD |
834 | struct ltt_channel *channel = objd_private(objd); |
835 | ||
f4681817 MD |
836 | switch (cmd) { |
837 | case LTTNG_UST_STREAM: | |
381c0f1e MD |
838 | { |
839 | struct lttng_ust_stream *stream; | |
840 | ||
841 | stream = (struct lttng_ust_stream *) arg; | |
842 | /* stream used as output */ | |
ef9ff354 | 843 | return lttng_abi_open_stream(objd, stream, uargs); |
381c0f1e | 844 | } |
43d330a4 MD |
845 | case LTTNG_UST_FLUSH_BUFFER: |
846 | return channel->ops->flush_buffer(channel->chan, channel->handle); | |
f4681817 MD |
847 | default: |
848 | return -EINVAL; | |
849 | } | |
850 | } | |
851 | ||
852 | #if 0 | |
853 | /** | |
854 | * lttng_channel_poll - lttng stream addition/removal monitoring | |
855 | * | |
856 | * @file: the file | |
857 | * @wait: poll table | |
858 | */ | |
859 | unsigned int lttng_channel_poll(struct file *file, poll_table *wait) | |
860 | { | |
861 | struct ltt_channel *channel = file->private_data; | |
862 | unsigned int mask = 0; | |
863 | ||
864 | if (file->f_mode & FMODE_READ) { | |
865 | poll_wait_set_exclusive(wait); | |
866 | poll_wait(file, channel->ops->get_hp_wait_queue(channel->chan), | |
867 | wait); | |
868 | ||
869 | if (channel->ops->is_disabled(channel->chan)) | |
870 | return POLLERR; | |
871 | if (channel->ops->is_finalized(channel->chan)) | |
872 | return POLLHUP; | |
873 | if (channel->ops->buffer_has_read_closed_stream(channel->chan)) | |
874 | return POLLIN | POLLRDNORM; | |
875 | return 0; | |
876 | } | |
877 | return mask; | |
878 | ||
879 | } | |
880 | #endif //0 | |
881 | ||
882 | static | |
883 | int lttng_channel_release(int objd) | |
884 | { | |
885 | struct ltt_channel *channel = objd_private(objd); | |
886 | ||
887 | if (channel) | |
d4419b81 | 888 | return lttng_ust_objd_unref(channel->session->objd); |
f4681817 MD |
889 | return 0; |
890 | } | |
891 | ||
b61ce3b2 | 892 | static const struct lttng_ust_objd_ops lttng_channel_ops = { |
f4681817 MD |
893 | .release = lttng_channel_release, |
894 | //.poll = lttng_channel_poll, | |
895 | .cmd = lttng_channel_cmd, | |
896 | }; | |
897 | ||
b61ce3b2 | 898 | static const struct lttng_ust_objd_ops lttng_metadata_ops = { |
f4681817 MD |
899 | .release = lttng_channel_release, |
900 | .cmd = lttng_metadata_cmd, | |
901 | }; | |
902 | ||
381c0f1e MD |
903 | /** |
904 | * lttng_rb_cmd - lttng ring buffer control through object descriptors | |
905 | * | |
906 | * @objd: the object descriptor | |
907 | * @cmd: the command | |
908 | * @arg: command arg | |
ef9ff354 | 909 | * @uargs: UST arguments (internal) |
381c0f1e MD |
910 | * |
911 | * This object descriptor implements lttng commands: | |
912 | * (None for now. Access is done directly though shm.) | |
381c0f1e MD |
913 | */ |
914 | static | |
ef9ff354 MD |
915 | long lttng_rb_cmd(int objd, unsigned int cmd, unsigned long arg, |
916 | union ust_args *uargs) | |
381c0f1e | 917 | { |
381c0f1e MD |
918 | switch (cmd) { |
919 | default: | |
920 | return -EINVAL; | |
921 | } | |
922 | } | |
923 | ||
924 | static | |
925 | int lttng_rb_release(int objd) | |
926 | { | |
927 | struct stream_priv_data *priv = objd_private(objd); | |
4cfec15c | 928 | struct lttng_ust_lib_ring_buffer *buf; |
381c0f1e MD |
929 | struct ltt_channel *channel; |
930 | ||
931 | if (priv) { | |
932 | buf = priv->buf; | |
933 | channel = priv->ltt_chan; | |
934 | free(priv); | |
45e9e699 MD |
935 | /* |
936 | * If we are at ABI exit, we don't want to close the | |
937 | * buffer opened for read: it is being shared between | |
938 | * the parent and child (right after fork), and we don't | |
939 | * want the child to close it for the parent. For a real | |
940 | * exit, we don't care about marking it as closed, as | |
941 | * the consumer daemon (if there is one) will do fine | |
942 | * even if we don't mark it as "closed" for reading on | |
943 | * our side. | |
944 | * We only mark it as closed if it is being explicitely | |
945 | * released by the session daemon with an explicit | |
946 | * release command. | |
947 | */ | |
948 | if (!lttng_ust_abi_close_in_progress) | |
949 | channel->ops->buffer_read_close(buf, channel->handle); | |
381c0f1e | 950 | |
d4419b81 | 951 | return lttng_ust_objd_unref(channel->objd); |
381c0f1e MD |
952 | } |
953 | return 0; | |
954 | } | |
955 | ||
b61ce3b2 | 956 | static const struct lttng_ust_objd_ops lib_ring_buffer_objd_ops = { |
381c0f1e MD |
957 | .release = lttng_rb_release, |
958 | .cmd = lttng_rb_cmd, | |
959 | }; | |
960 | ||
f4681817 MD |
961 | /** |
962 | * lttng_event_cmd - lttng control through object descriptors | |
963 | * | |
964 | * @objd: the object descriptor | |
965 | * @cmd: the command | |
966 | * @arg: command arg | |
ef9ff354 | 967 | * @uargs: UST arguments (internal) |
f4681817 MD |
968 | * |
969 | * This object descriptor implements lttng commands: | |
970 | * LTTNG_UST_CONTEXT | |
971 | * Prepend a context field to each record of this event | |
972 | * LTTNG_UST_ENABLE | |
973 | * Enable recording for this event (weak enable) | |
974 | * LTTNG_UST_DISABLE | |
975 | * Disable recording for this event (strong disable) | |
976 | */ | |
977 | static | |
ef9ff354 MD |
978 | long lttng_event_cmd(int objd, unsigned int cmd, unsigned long arg, |
979 | union ust_args *uargs) | |
f4681817 MD |
980 | { |
981 | struct ltt_event *event = objd_private(objd); | |
982 | ||
983 | switch (cmd) { | |
984 | case LTTNG_UST_CONTEXT: | |
985 | return lttng_abi_add_context(objd, | |
986 | (struct lttng_ust_context *) arg, | |
987 | &event->ctx, event->chan->session); | |
988 | case LTTNG_UST_ENABLE: | |
989 | return ltt_event_enable(event); | |
990 | case LTTNG_UST_DISABLE: | |
991 | return ltt_event_disable(event); | |
992 | default: | |
993 | return -EINVAL; | |
994 | } | |
995 | } | |
996 | ||
997 | static | |
998 | int lttng_event_release(int objd) | |
999 | { | |
1000 | struct ltt_event *event = objd_private(objd); | |
1001 | ||
1002 | if (event) | |
d4419b81 | 1003 | return lttng_ust_objd_unref(event->chan->objd); |
f4681817 MD |
1004 | return 0; |
1005 | } | |
1006 | ||
1007 | /* TODO: filter control ioctl */ | |
b61ce3b2 | 1008 | static const struct lttng_ust_objd_ops lttng_event_ops = { |
f4681817 MD |
1009 | .release = lttng_event_release, |
1010 | .cmd = lttng_event_cmd, | |
1011 | }; | |
1012 | ||
1f18504e MD |
1013 | /** |
1014 | * lttng_loglevel_cmd - lttng control through object descriptors | |
1015 | * | |
1016 | * @objd: the object descriptor | |
1017 | * @cmd: the command | |
1018 | * @arg: command arg | |
ef9ff354 | 1019 | * @uargs: UST arguments (internal) |
1f18504e MD |
1020 | * |
1021 | * This object descriptor implements lttng commands: | |
1022 | * LTTNG_UST_CONTEXT | |
1023 | * Prepend a context field to each record of events of this | |
1024 | * loglevel. | |
1025 | * LTTNG_UST_ENABLE | |
1026 | * Enable recording for these loglevel events (weak enable) | |
1027 | * LTTNG_UST_DISABLE | |
1028 | * Disable recording for these loglevel events (strong disable) | |
1029 | */ | |
1030 | static | |
ef9ff354 MD |
1031 | long lttng_loglevel_cmd(int objd, unsigned int cmd, unsigned long arg, |
1032 | union ust_args *uargs) | |
1f18504e | 1033 | { |
574a6217 | 1034 | struct session_loglevel *loglevel = objd_private(objd); |
1f18504e MD |
1035 | |
1036 | switch (cmd) { | |
1037 | case LTTNG_UST_CONTEXT: | |
1038 | return -ENOSYS; /* not implemented yet */ | |
1039 | #if 0 | |
1040 | return lttng_abi_add_context(objd, | |
1041 | (struct lttng_ust_context *) arg, | |
1042 | &loglevel->ctx, loglevel->chan->session); | |
1043 | #endif | |
1044 | case LTTNG_UST_ENABLE: | |
1045 | return ltt_loglevel_enable(loglevel); | |
1046 | case LTTNG_UST_DISABLE: | |
1047 | return ltt_loglevel_disable(loglevel); | |
1048 | default: | |
1049 | return -EINVAL; | |
1050 | } | |
1051 | } | |
1052 | ||
1053 | static | |
1054 | int lttng_loglevel_release(int objd) | |
1055 | { | |
574a6217 | 1056 | struct session_loglevel *loglevel = objd_private(objd); |
1f18504e MD |
1057 | |
1058 | if (loglevel) | |
1059 | return lttng_ust_objd_unref(loglevel->chan->objd); | |
1060 | return 0; | |
1061 | } | |
1062 | ||
1063 | /* TODO: filter control ioctl */ | |
1064 | static const struct lttng_ust_objd_ops lttng_loglevel_ops = { | |
1065 | .release = lttng_loglevel_release, | |
1066 | .cmd = lttng_loglevel_cmd, | |
1067 | }; | |
1068 | ||
e6c12e3d MD |
1069 | /** |
1070 | * lttng_wildcard_cmd - lttng control through object descriptors | |
1071 | * | |
1072 | * @objd: the object descriptor | |
1073 | * @cmd: the command | |
1074 | * @arg: command arg | |
ef9ff354 | 1075 | * @uargs: UST arguments (internal) |
e6c12e3d MD |
1076 | * |
1077 | * This object descriptor implements lttng commands: | |
1078 | * LTTNG_UST_CONTEXT | |
1079 | * Prepend a context field to each record of events of this | |
1080 | * wildcard. | |
1081 | * LTTNG_UST_ENABLE | |
1082 | * Enable recording for these wildcard events (weak enable) | |
1083 | * LTTNG_UST_DISABLE | |
1084 | * Disable recording for these wildcard events (strong disable) | |
1085 | */ | |
1086 | static | |
ef9ff354 MD |
1087 | long lttng_wildcard_cmd(int objd, unsigned int cmd, unsigned long arg, |
1088 | union ust_args *uargs) | |
e6c12e3d MD |
1089 | { |
1090 | struct session_wildcard *wildcard = objd_private(objd); | |
1091 | ||
1092 | switch (cmd) { | |
1093 | case LTTNG_UST_CONTEXT: | |
1094 | return -ENOSYS; /* not implemented yet */ | |
1095 | #if 0 | |
1096 | return lttng_abi_add_context(objd, | |
1097 | (struct lttng_ust_context *) arg, | |
1098 | &wildcard->ctx, wildcard->chan->session); | |
1099 | #endif | |
1100 | case LTTNG_UST_ENABLE: | |
1101 | return ltt_wildcard_enable(wildcard); | |
1102 | case LTTNG_UST_DISABLE: | |
1103 | return ltt_wildcard_disable(wildcard); | |
1104 | default: | |
1105 | return -EINVAL; | |
1106 | } | |
1107 | } | |
1108 | ||
1109 | static | |
1110 | int lttng_wildcard_release(int objd) | |
1111 | { | |
1112 | struct session_wildcard *wildcard = objd_private(objd); | |
1113 | ||
1114 | if (wildcard) | |
1115 | return lttng_ust_objd_unref(wildcard->chan->objd); | |
1116 | return 0; | |
1117 | } | |
1118 | ||
1119 | /* TODO: filter control ioctl */ | |
1120 | static const struct lttng_ust_objd_ops lttng_wildcard_ops = { | |
1121 | .release = lttng_wildcard_release, | |
1122 | .cmd = lttng_wildcard_cmd, | |
1123 | }; | |
1124 | ||
b35d179d | 1125 | void lttng_ust_abi_exit(void) |
f4681817 | 1126 | { |
45e9e699 | 1127 | lttng_ust_abi_close_in_progress = 1; |
f4681817 | 1128 | objd_table_destroy(); |
45e9e699 | 1129 | lttng_ust_abi_close_in_progress = 0; |
f4681817 | 1130 | } |