Commit | Line | Data |
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d871c65b | 1 | /* |
c0c0989a | 2 | * SPDX-License-Identifier: MIT |
d871c65b | 3 | * |
c0c0989a | 4 | * Copyright 2019 (c) Francis Deslauriers <francis.deslauriers@efficios.com> |
d871c65b FD |
5 | */ |
6 | ||
c0c0989a MJ |
7 | #ifndef _LTTNG_UST_EVENTS_INTERNAL_H |
8 | #define _LTTNG_UST_EVENTS_INTERNAL_H | |
9 | ||
d871c65b FD |
10 | #include <stdint.h> |
11 | ||
12 | #include <urcu/list.h> | |
13 | #include <urcu/hlist.h> | |
14 | ||
d871c65b FD |
15 | #include <lttng/ust-events.h> |
16 | ||
a084756d | 17 | #include <ust-helper.h> |
fa194c41 | 18 | #include "ust-context-provider.h" |
fd17d7ce MD |
19 | |
20 | struct lttng_ust_abi_obj; | |
06cd86a0 | 21 | struct lttng_event_notifier_group; |
fd17d7ce MD |
22 | |
23 | union lttng_ust_abi_args { | |
24 | struct { | |
25 | void *chan_data; | |
26 | int wakeup_fd; | |
27 | } channel; | |
28 | struct { | |
29 | int shm_fd; | |
30 | int wakeup_fd; | |
31 | } stream; | |
32 | struct { | |
33 | struct lttng_ust_abi_field_iter entry; | |
34 | } field_list; | |
35 | struct { | |
36 | char *ctxname; | |
37 | } app_context; | |
38 | struct { | |
39 | int event_notifier_notif_fd; | |
40 | } event_notifier_handle; | |
41 | struct { | |
42 | void *counter_data; | |
43 | } counter; | |
44 | struct { | |
45 | int shm_fd; | |
46 | } counter_shm; | |
47 | }; | |
48 | ||
49 | struct lttng_ust_abi_objd_ops { | |
50 | long (*cmd)(int objd, unsigned int cmd, unsigned long arg, | |
51 | union lttng_ust_abi_args *args, void *owner); | |
52 | int (*release)(int objd); | |
53 | }; | |
54 | ||
8665f6a4 MJ |
55 | enum lttng_enabler_format_type { |
56 | LTTNG_ENABLER_FORMAT_STAR_GLOB, | |
57 | LTTNG_ENABLER_FORMAT_EVENT, | |
58 | }; | |
59 | ||
60 | /* | |
61 | * Enabler field, within whatever object is enabling an event. Target of | |
62 | * backward reference. | |
63 | */ | |
64 | struct lttng_enabler { | |
65 | enum lttng_enabler_format_type format_type; | |
66 | ||
67 | /* head list of struct lttng_ust_filter_bytecode_node */ | |
68 | struct cds_list_head filter_bytecode_head; | |
69 | /* head list of struct lttng_ust_excluder_node */ | |
70 | struct cds_list_head excluder_head; | |
71 | ||
fd17d7ce | 72 | struct lttng_ust_abi_event event_param; |
8665f6a4 MJ |
73 | unsigned int enabled:1; |
74 | }; | |
75 | ||
d871c65b FD |
76 | struct lttng_event_enabler { |
77 | struct lttng_enabler base; | |
78 | struct cds_list_head node; /* per-session list of enablers */ | |
e7bc0ef6 | 79 | struct lttng_ust_channel_buffer *chan; |
d871c65b FD |
80 | /* |
81 | * Unused, but kept around to make it explicit that the tracer can do | |
82 | * it. | |
83 | */ | |
daacdbfc | 84 | struct lttng_ust_ctx *ctx; |
d871c65b FD |
85 | }; |
86 | ||
d8d2416d FD |
87 | struct lttng_event_notifier_enabler { |
88 | struct lttng_enabler base; | |
6566528b | 89 | uint64_t error_counter_index; |
d37ecb3f FD |
90 | struct cds_list_head node; /* per-app list of event_notifier enablers */ |
91 | struct cds_list_head capture_bytecode_head; | |
d8d2416d FD |
92 | struct lttng_event_notifier_group *group; /* weak ref */ |
93 | uint64_t user_token; /* User-provided token */ | |
d37ecb3f | 94 | uint64_t num_captures; |
d8d2416d FD |
95 | }; |
96 | ||
ab249ecf FD |
97 | enum lttng_ust_bytecode_node_type { |
98 | LTTNG_UST_BYTECODE_NODE_TYPE_FILTER, | |
d37ecb3f | 99 | LTTNG_UST_BYTECODE_NODE_TYPE_CAPTURE, |
ab249ecf FD |
100 | }; |
101 | ||
102 | struct lttng_ust_bytecode_node { | |
103 | enum lttng_ust_bytecode_node_type type; | |
92495593 FD |
104 | struct cds_list_head node; |
105 | struct lttng_enabler *enabler; | |
ab249ecf FD |
106 | struct { |
107 | uint32_t len; | |
108 | uint32_t reloc_offset; | |
109 | uint64_t seqnum; | |
110 | char data[]; | |
111 | } bc; | |
92495593 FD |
112 | }; |
113 | ||
114 | struct lttng_ust_excluder_node { | |
115 | struct cds_list_head node; | |
116 | struct lttng_enabler *enabler; | |
117 | /* | |
118 | * struct lttng_ust_event_exclusion had variable sized array, | |
119 | * must be last field. | |
120 | */ | |
fd17d7ce | 121 | struct lttng_ust_abi_event_exclusion excluder; |
92495593 FD |
122 | }; |
123 | ||
bb7ad29d MJ |
124 | /* Data structures used by the tracer. */ |
125 | ||
126 | struct tp_list_entry { | |
fd17d7ce | 127 | struct lttng_ust_abi_tracepoint_iter tp; |
bb7ad29d MJ |
128 | struct cds_list_head head; |
129 | }; | |
130 | ||
131 | struct lttng_ust_tracepoint_list { | |
132 | struct tp_list_entry *iter; | |
133 | struct cds_list_head head; | |
134 | }; | |
135 | ||
136 | struct tp_field_list_entry { | |
fd17d7ce | 137 | struct lttng_ust_abi_field_iter field; |
bb7ad29d MJ |
138 | struct cds_list_head head; |
139 | }; | |
140 | ||
141 | struct lttng_ust_field_list { | |
142 | struct tp_field_list_entry *iter; | |
143 | struct cds_list_head head; | |
144 | }; | |
145 | ||
146 | /* | |
147 | * Objects in a linked-list of enablers, owned by an event or event_notifier. | |
148 | * This is used because an event (or a event_notifier) can be enabled by more | |
149 | * than one enabler and we want a quick way to iterate over all enablers of an | |
150 | * object. | |
151 | * | |
152 | * For example, event rules "my_app:a*" and "my_app:ab*" will both match the | |
153 | * event with the name "my_app:abc". | |
154 | */ | |
155 | struct lttng_enabler_ref { | |
156 | struct cds_list_head node; /* enabler ref list */ | |
157 | struct lttng_enabler *ref; /* backward ref */ | |
158 | }; | |
159 | ||
160 | #define LTTNG_COUNTER_DIMENSION_MAX 8 | |
161 | struct lttng_counter_dimension { | |
162 | uint64_t size; | |
163 | uint64_t underflow_index; | |
164 | uint64_t overflow_index; | |
165 | uint8_t has_underflow; | |
166 | uint8_t has_overflow; | |
167 | }; | |
168 | ||
b5863ea7 MD |
169 | struct lttng_counter_ops { |
170 | struct lib_counter *(*counter_create)(size_t nr_dimensions, | |
171 | const struct lttng_counter_dimension *dimensions, | |
172 | int64_t global_sum_step, | |
173 | int global_counter_fd, | |
174 | int nr_counter_cpu_fds, | |
175 | const int *counter_cpu_fds, | |
176 | bool is_daemon); | |
177 | void (*counter_destroy)(struct lib_counter *counter); | |
178 | int (*counter_add)(struct lib_counter *counter, | |
179 | const size_t *dimension_indexes, int64_t v); | |
180 | int (*counter_read)(struct lib_counter *counter, | |
181 | const size_t *dimension_indexes, int cpu, | |
182 | int64_t *value, bool *overflow, bool *underflow); | |
183 | int (*counter_aggregate)(struct lib_counter *counter, | |
184 | const size_t *dimension_indexes, int64_t *value, | |
185 | bool *overflow, bool *underflow); | |
186 | int (*counter_clear)(struct lib_counter *counter, const size_t *dimension_indexes); | |
187 | }; | |
188 | ||
bb7ad29d MJ |
189 | struct lttng_counter { |
190 | int objd; | |
191 | struct lttng_event_notifier_group *event_notifier_group; /* owner */ | |
192 | struct lttng_counter_transport *transport; | |
193 | struct lib_counter *counter; | |
194 | struct lttng_counter_ops *ops; | |
195 | }; | |
196 | ||
681f6001 MD |
197 | #define LTTNG_UST_EVENT_HT_BITS 12 |
198 | #define LTTNG_UST_EVENT_HT_SIZE (1U << LTTNG_UST_EVENT_HT_BITS) | |
199 | ||
200 | struct lttng_ust_event_ht { | |
201 | struct cds_hlist_head table[LTTNG_UST_EVENT_HT_SIZE]; | |
202 | }; | |
203 | ||
204 | #define LTTNG_UST_EVENT_NOTIFIER_HT_BITS 12 | |
205 | #define LTTNG_UST_EVENT_NOTIFIER_HT_SIZE (1U << LTTNG_UST_EVENT_NOTIFIER_HT_BITS) | |
206 | struct lttng_ust_event_notifier_ht { | |
207 | struct cds_hlist_head table[LTTNG_UST_EVENT_NOTIFIER_HT_SIZE]; | |
208 | }; | |
209 | ||
210 | #define LTTNG_UST_ENUM_HT_BITS 12 | |
211 | #define LTTNG_UST_ENUM_HT_SIZE (1U << LTTNG_UST_ENUM_HT_BITS) | |
212 | ||
213 | struct lttng_ust_enum_ht { | |
214 | struct cds_hlist_head table[LTTNG_UST_ENUM_HT_SIZE]; | |
215 | }; | |
216 | ||
bb7ad29d MJ |
217 | struct lttng_event_notifier_group { |
218 | int objd; | |
219 | void *owner; | |
220 | int notification_fd; | |
221 | struct cds_list_head node; /* Event notifier group handle list */ | |
222 | struct cds_list_head enablers_head; | |
223 | struct cds_list_head event_notifiers_head; /* list of event_notifiers */ | |
224 | struct lttng_ust_event_notifier_ht event_notifiers_ht; /* hashtable of event_notifiers */ | |
daacdbfc | 225 | struct lttng_ust_ctx *ctx; /* contexts for filters. */ |
bb7ad29d MJ |
226 | |
227 | struct lttng_counter *error_counter; | |
228 | size_t error_counter_len; | |
229 | }; | |
230 | ||
231 | struct lttng_transport { | |
232 | char *name; | |
233 | struct cds_list_head node; | |
49926dbd | 234 | struct lttng_ust_channel_ops ops; |
bb7ad29d MJ |
235 | const struct lttng_ust_lib_ring_buffer_config *client_config; |
236 | }; | |
237 | ||
238 | struct lttng_counter_transport { | |
239 | char *name; | |
240 | struct cds_list_head node; | |
241 | struct lttng_counter_ops ops; | |
242 | const struct lib_counter_config *client_config; | |
243 | }; | |
244 | ||
80333dfa | 245 | struct lttng_ust_event_common_private { |
7ee76145 | 246 | struct lttng_ust_event_common *pub; /* Public event interface */ |
68bb7559 | 247 | |
a084756d | 248 | struct lttng_ust_event_desc *desc; |
68bb7559 MD |
249 | /* Backward references: list of lttng_enabler_ref (ref to enablers) */ |
250 | struct cds_list_head enablers_ref_head; | |
68bb7559 | 251 | int registered; /* has reg'd tracepoint probe */ |
115db533 | 252 | uint64_t user_token; |
68bb7559 MD |
253 | }; |
254 | ||
2e70391c | 255 | struct lttng_ust_event_recorder_private { |
80333dfa MD |
256 | struct lttng_ust_event_common_private parent; |
257 | ||
2e70391c | 258 | struct lttng_ust_event_recorder *pub; /* Public event interface */ |
ba99fbe2 MD |
259 | struct cds_list_head node; /* Event recorder list */ |
260 | struct cds_hlist_node hlist; /* Hash table of event recorders */ | |
a40b5b8c | 261 | struct lttng_ust_ctx *ctx; |
80333dfa MD |
262 | }; |
263 | ||
115db533 MD |
264 | struct lttng_ust_event_notifier_private { |
265 | struct lttng_ust_event_common_private parent; | |
266 | ||
d7d45c0d | 267 | struct lttng_ust_event_notifier *pub; /* Public event notifier interface */ |
115db533 MD |
268 | struct lttng_event_notifier_group *group; /* weak ref */ |
269 | size_t num_captures; /* Needed to allocate the msgpack array. */ | |
270 | uint64_t error_counter_index; | |
ba99fbe2 MD |
271 | struct cds_list_head node; /* Event notifier list */ |
272 | struct cds_hlist_node hlist; /* Hash table of event notifiers */ | |
115db533 MD |
273 | }; |
274 | ||
362a65de MD |
275 | struct lttng_ust_bytecode_runtime_private { |
276 | struct bytecode_runtime *pub; /* Public bytecode runtime interface */ | |
277 | ||
278 | struct lttng_ust_bytecode_node *bc; | |
279 | int link_failed; | |
280 | /* | |
281 | * Pointer to a URCU-protected pointer owned by an `struct | |
282 | * lttng_session`or `struct lttng_event_notifier_group`. | |
283 | */ | |
daacdbfc | 284 | struct lttng_ust_ctx **pctx; |
362a65de MD |
285 | }; |
286 | ||
bdb12629 | 287 | struct lttng_ust_session_private { |
f69fe5fb | 288 | struct lttng_ust_session *pub; /* Public session interface */ |
bdb12629 MD |
289 | |
290 | int been_active; /* Been active ? */ | |
291 | int objd; /* Object associated */ | |
292 | struct cds_list_head chan_head; /* Channel list head */ | |
293 | struct cds_list_head events_head; /* list of events */ | |
294 | struct cds_list_head node; /* Session list */ | |
295 | ||
296 | /* New UST 2.1 */ | |
297 | /* List of enablers */ | |
298 | struct cds_list_head enablers_head; | |
299 | struct lttng_ust_event_ht events_ht; /* ht of events */ | |
300 | void *owner; /* object owner */ | |
301 | int tstate:1; /* Transient enable state */ | |
302 | ||
303 | /* New UST 2.4 */ | |
304 | int statedump_pending:1; | |
305 | ||
306 | /* New UST 2.8 */ | |
307 | struct lttng_ust_enum_ht enums_ht; /* ht of enumerations */ | |
308 | struct cds_list_head enums_head; | |
daacdbfc | 309 | struct lttng_ust_ctx *ctx; /* contexts for filters. */ |
bdb12629 MD |
310 | }; |
311 | ||
036d17fb | 312 | struct lttng_enum { |
a084756d | 313 | struct lttng_ust_enum_desc *desc; |
f69fe5fb | 314 | struct lttng_ust_session *session; |
036d17fb MD |
315 | struct cds_list_head node; /* Enum list in session */ |
316 | struct cds_hlist_node hlist; /* Session ht of enums */ | |
317 | uint64_t id; /* Enumeration ID in sessiond */ | |
318 | }; | |
319 | ||
e7bc0ef6 MD |
320 | struct lttng_ust_shm_handle; |
321 | ||
a880bae5 MD |
322 | struct lttng_ust_channel_ops_private { |
323 | struct lttng_ust_channel_ops *pub; /* Public channels ops interface */ | |
324 | ||
e7bc0ef6 | 325 | struct lttng_ust_channel_buffer *(*channel_create)(const char *name, |
a880bae5 MD |
326 | void *buf_addr, |
327 | size_t subbuf_size, size_t num_subbuf, | |
328 | unsigned int switch_timer_interval, | |
329 | unsigned int read_timer_interval, | |
330 | unsigned char *uuid, | |
331 | uint32_t chan_id, | |
332 | const int *stream_fds, int nr_stream_fds, | |
333 | int64_t blocking_timeout); | |
e7bc0ef6 | 334 | void (*channel_destroy)(struct lttng_ust_channel_buffer *chan); |
a880bae5 MD |
335 | /* |
336 | * packet_avail_size returns the available size in the current | |
337 | * packet. Note that the size returned is only a hint, since it | |
338 | * may change due to concurrent writes. | |
339 | */ | |
340 | size_t (*packet_avail_size)(struct lttng_ust_lib_ring_buffer_channel *chan, | |
341 | struct lttng_ust_shm_handle *handle); | |
342 | int (*is_finalized)(struct lttng_ust_lib_ring_buffer_channel *chan); | |
343 | int (*is_disabled)(struct lttng_ust_lib_ring_buffer_channel *chan); | |
344 | int (*flush_buffer)(struct lttng_ust_lib_ring_buffer_channel *chan, | |
345 | struct lttng_ust_shm_handle *handle); | |
346 | }; | |
347 | ||
e7bc0ef6 MD |
348 | struct lttng_ust_channel_common_private { |
349 | struct lttng_ust_channel_common *pub; /* Public channel interface */ | |
350 | ||
351 | int objd; /* Object associated with channel. */ | |
352 | int tstate:1; /* Transient enable state */ | |
353 | }; | |
354 | ||
355 | struct lttng_ust_channel_buffer_private { | |
356 | struct lttng_ust_channel_common_private parent; | |
357 | ||
358 | struct lttng_ust_channel_buffer *pub; /* Public channel buffer interface */ | |
359 | struct cds_list_head node; /* Channel list in session */ | |
360 | int header_type; /* 0: unset, 1: compact, 2: large */ | |
361 | unsigned int id; /* Channel ID */ | |
362 | enum lttng_ust_abi_chan_type type; | |
0950190a | 363 | struct lttng_ust_ctx *ctx; |
e7bc0ef6 MD |
364 | unsigned char uuid[LTTNG_UST_UUID_LEN]; /* Trace session unique ID */ |
365 | }; | |
366 | ||
f0fde1c3 MD |
367 | /* |
368 | * IMPORTANT: this structure is part of the ABI between the consumer | |
369 | * daemon and the UST library within traced applications. Changing it | |
370 | * breaks the UST communication protocol. | |
371 | * | |
372 | * TODO: remove unused fields on next UST communication protocol | |
373 | * breaking update. | |
374 | */ | |
375 | struct lttng_ust_abi_channel_config { | |
376 | void *unused1; | |
377 | int unused2; | |
378 | void *unused3; | |
379 | void *unused4; | |
380 | int unused5; | |
381 | struct cds_list_head unused6; | |
382 | void *unused7; | |
383 | int unused8; | |
384 | void *unused9; | |
385 | ||
386 | /* Channel ID */ | |
387 | unsigned int id; | |
388 | enum lttng_ust_abi_chan_type unused10; | |
389 | unsigned char uuid[LTTNG_UST_UUID_LEN]; /* Trace session unique ID */ | |
390 | int unused11:1; | |
391 | }; | |
392 | ||
a084756d MD |
393 | static inline |
394 | struct lttng_ust_type_integer *lttng_ust_get_type_integer(struct lttng_ust_type_common *type) | |
395 | { | |
396 | if (type->type != lttng_ust_type_integer) | |
397 | return NULL; | |
398 | return caa_container_of(type, struct lttng_ust_type_integer, parent); | |
399 | } | |
400 | ||
401 | static inline | |
402 | struct lttng_ust_type_float *lttng_ust_get_type_float(struct lttng_ust_type_common *type) | |
403 | { | |
404 | if (type->type != lttng_ust_type_float) | |
405 | return NULL; | |
406 | return caa_container_of(type, struct lttng_ust_type_float, parent); | |
407 | } | |
408 | ||
409 | static inline | |
410 | struct lttng_ust_type_string *lttng_ust_get_type_string(struct lttng_ust_type_common *type) | |
411 | { | |
412 | if (type->type != lttng_ust_type_string) | |
413 | return NULL; | |
414 | return caa_container_of(type, struct lttng_ust_type_string, parent); | |
415 | } | |
416 | ||
417 | static inline | |
418 | struct lttng_ust_type_enum *lttng_ust_get_type_enum(struct lttng_ust_type_common *type) | |
419 | { | |
420 | if (type->type != lttng_ust_type_enum) | |
421 | return NULL; | |
422 | return caa_container_of(type, struct lttng_ust_type_enum, parent); | |
423 | } | |
424 | ||
425 | static inline | |
426 | struct lttng_ust_type_array *lttng_ust_get_type_array(struct lttng_ust_type_common *type) | |
427 | { | |
428 | if (type->type != lttng_ust_type_array) | |
429 | return NULL; | |
430 | return caa_container_of(type, struct lttng_ust_type_array, parent); | |
431 | } | |
432 | ||
433 | static inline | |
434 | struct lttng_ust_type_sequence *lttng_ust_get_type_sequence(struct lttng_ust_type_common *type) | |
435 | { | |
436 | if (type->type != lttng_ust_type_sequence) | |
437 | return NULL; | |
438 | return caa_container_of(type, struct lttng_ust_type_sequence, parent); | |
439 | } | |
440 | ||
441 | static inline | |
442 | struct lttng_ust_type_struct *lttng_ust_get_type_struct(struct lttng_ust_type_common *type) | |
443 | { | |
444 | if (type->type != lttng_ust_type_struct) | |
445 | return NULL; | |
446 | return caa_container_of(type, struct lttng_ust_type_struct, parent); | |
447 | } | |
448 | ||
449 | /* Create dynamically allocated types. */ | |
450 | static inline | |
451 | struct lttng_ust_type_common *lttng_ust_create_type_integer(unsigned int size, | |
452 | unsigned short alignment, bool signedness, unsigned int byte_order, | |
453 | unsigned int base) | |
454 | { | |
455 | struct lttng_ust_type_integer *integer_type; | |
456 | ||
457 | integer_type = zmalloc(sizeof(struct lttng_ust_type_integer)); | |
458 | if (!integer_type) | |
459 | return NULL; | |
460 | integer_type->parent.type = lttng_ust_type_integer; | |
461 | integer_type->struct_size = sizeof(struct lttng_ust_type_integer); | |
462 | integer_type->size = size; | |
463 | integer_type->alignment = alignment; | |
464 | integer_type->signedness = signedness; | |
465 | integer_type->reverse_byte_order = byte_order != BYTE_ORDER; | |
466 | integer_type->base = base; | |
467 | return (struct lttng_ust_type_common *) integer_type; | |
468 | } | |
469 | ||
470 | static inline | |
471 | struct lttng_ust_type_common *lttng_ust_create_type_array_text(unsigned int length) | |
472 | { | |
473 | struct lttng_ust_type_array *array_type; | |
474 | ||
475 | array_type = zmalloc(sizeof(struct lttng_ust_type_array)); | |
476 | if (!array_type) | |
477 | return NULL; | |
478 | array_type->parent.type = lttng_ust_type_array; | |
479 | array_type->struct_size = sizeof(struct lttng_ust_type_array); | |
480 | array_type->length = length; | |
481 | array_type->alignment = 0; | |
482 | array_type->encoding = lttng_ust_string_encoding_UTF8; | |
483 | array_type->elem_type = lttng_ust_create_type_integer(sizeof(char) * CHAR_BIT, | |
484 | lttng_alignof(char) * CHAR_BIT, lttng_is_signed_type(char), | |
485 | BYTE_ORDER, 10); | |
486 | if (!array_type->elem_type) | |
487 | goto error_elem; | |
488 | return (struct lttng_ust_type_common *) array_type; | |
489 | ||
490 | error_elem: | |
491 | free(array_type); | |
492 | return NULL; | |
493 | } | |
494 | ||
495 | /* | |
496 | * Destroy dynamically allocated types, including nested types. | |
497 | * For enumerations, it does not free the enumeration mapping description. | |
498 | */ | |
499 | static inline | |
500 | void lttng_ust_destroy_type(struct lttng_ust_type_common *type) | |
501 | { | |
502 | if (!type) | |
503 | return; | |
504 | ||
505 | switch (type->type) { | |
506 | case lttng_ust_type_integer: | |
507 | case lttng_ust_type_string: | |
508 | case lttng_ust_type_float: | |
509 | case lttng_ust_type_dynamic: | |
510 | free(type); | |
511 | break; | |
512 | case lttng_ust_type_enum: | |
513 | { | |
514 | struct lttng_ust_type_enum *enum_type = (struct lttng_ust_type_enum *) type; | |
515 | ||
516 | lttng_ust_destroy_type(enum_type->container_type); | |
a9d86fd1 | 517 | free(enum_type); |
a084756d MD |
518 | break; |
519 | } | |
520 | case lttng_ust_type_array: | |
521 | { | |
522 | struct lttng_ust_type_array *array_type = (struct lttng_ust_type_array *) type; | |
523 | ||
524 | lttng_ust_destroy_type(array_type->elem_type); | |
a9d86fd1 | 525 | free(array_type); |
a084756d MD |
526 | break; |
527 | } | |
528 | case lttng_ust_type_sequence: | |
529 | { | |
530 | struct lttng_ust_type_sequence *sequence_type = (struct lttng_ust_type_sequence *) type; | |
531 | ||
532 | lttng_ust_destroy_type(sequence_type->elem_type); | |
a9d86fd1 | 533 | free(sequence_type); |
a084756d MD |
534 | break; |
535 | } | |
536 | case lttng_ust_type_struct: | |
537 | { | |
538 | struct lttng_ust_type_struct *struct_type = (struct lttng_ust_type_struct *) type; | |
539 | unsigned int i; | |
540 | ||
541 | for (i = 0; i < struct_type->nr_fields; i++) | |
542 | lttng_ust_destroy_type(struct_type->fields[i]->type); | |
a9d86fd1 | 543 | free(struct_type); |
a084756d MD |
544 | break; |
545 | } | |
546 | default: | |
547 | abort(); | |
548 | } | |
549 | } | |
550 | ||
d871c65b FD |
551 | static inline |
552 | struct lttng_enabler *lttng_event_enabler_as_enabler( | |
553 | struct lttng_event_enabler *event_enabler) | |
554 | { | |
555 | return &event_enabler->base; | |
556 | } | |
557 | ||
d8d2416d FD |
558 | static inline |
559 | struct lttng_enabler *lttng_event_notifier_enabler_as_enabler( | |
560 | struct lttng_event_notifier_enabler *event_notifier_enabler) | |
561 | { | |
562 | return &event_notifier_enabler->base; | |
563 | } | |
d871c65b FD |
564 | |
565 | /* | |
566 | * Allocate and initialize a `struct lttng_event_enabler` object. | |
567 | * | |
568 | * On success, returns a `struct lttng_event_enabler`, | |
569 | * On memory error, returns NULL. | |
570 | */ | |
ddabe860 | 571 | __attribute__((visibility("hidden"))) |
d871c65b FD |
572 | struct lttng_event_enabler *lttng_event_enabler_create( |
573 | enum lttng_enabler_format_type format_type, | |
fd17d7ce | 574 | struct lttng_ust_abi_event *event_param, |
e7bc0ef6 | 575 | struct lttng_ust_channel_buffer *chan); |
d871c65b FD |
576 | |
577 | /* | |
578 | * Destroy a `struct lttng_event_enabler` object. | |
579 | */ | |
ddabe860 | 580 | __attribute__((visibility("hidden"))) |
d871c65b FD |
581 | void lttng_event_enabler_destroy(struct lttng_event_enabler *enabler); |
582 | ||
583 | /* | |
584 | * Enable a `struct lttng_event_enabler` object and all events related to this | |
585 | * enabler. | |
586 | */ | |
ddabe860 | 587 | __attribute__((visibility("hidden"))) |
d871c65b FD |
588 | int lttng_event_enabler_enable(struct lttng_event_enabler *enabler); |
589 | ||
590 | /* | |
591 | * Disable a `struct lttng_event_enabler` object and all events related to this | |
592 | * enabler. | |
593 | */ | |
ddabe860 | 594 | __attribute__((visibility("hidden"))) |
d871c65b FD |
595 | int lttng_event_enabler_disable(struct lttng_event_enabler *enabler); |
596 | ||
597 | /* | |
598 | * Attach filter bytecode program to `struct lttng_event_enabler` and all | |
599 | * events related to this enabler. | |
600 | */ | |
ddabe860 | 601 | __attribute__((visibility("hidden"))) |
a56fd376 FD |
602 | int lttng_event_enabler_attach_filter_bytecode( |
603 | struct lttng_event_enabler *enabler, | |
ab89263e | 604 | struct lttng_ust_bytecode_node **bytecode); |
d871c65b FD |
605 | |
606 | /* | |
607 | * Attach an application context to an event enabler. | |
608 | * | |
609 | * Not implemented. | |
610 | */ | |
ddabe860 | 611 | __attribute__((visibility("hidden"))) |
d871c65b | 612 | int lttng_event_enabler_attach_context(struct lttng_event_enabler *enabler, |
fd17d7ce | 613 | struct lttng_ust_abi_context *ctx); |
d871c65b FD |
614 | |
615 | /* | |
616 | * Attach exclusion list to `struct lttng_event_enabler` and all | |
617 | * events related to this enabler. | |
618 | */ | |
ddabe860 | 619 | __attribute__((visibility("hidden"))) |
d871c65b | 620 | int lttng_event_enabler_attach_exclusion(struct lttng_event_enabler *enabler, |
e9fe6aad | 621 | struct lttng_ust_excluder_node **excluder); |
d871c65b FD |
622 | |
623 | /* | |
d37ecb3f FD |
624 | * Synchronize bytecodes for the enabler and the instance (event or |
625 | * event_notifier). | |
d871c65b | 626 | * |
621c07fc | 627 | * This function goes over all bytecode programs of the enabler (event or |
d37ecb3f | 628 | * event_notifier enabler) to ensure each is linked to the provided instance. |
d871c65b | 629 | */ |
ddabe860 | 630 | __attribute__((visibility("hidden"))) |
a084756d | 631 | void lttng_enabler_link_bytecode(struct lttng_ust_event_desc *event_desc, |
daacdbfc | 632 | struct lttng_ust_ctx **ctx, |
621c07fc FD |
633 | struct cds_list_head *instance_bytecode_runtime_head, |
634 | struct cds_list_head *enabler_bytecode_runtime_head); | |
d871c65b | 635 | |
d8d2416d FD |
636 | /* |
637 | * Allocate and initialize a `struct lttng_event_notifier_group` object. | |
638 | * | |
639 | * On success, returns a `struct lttng_triggre_group`, | |
640 | * on memory error, returns NULL. | |
641 | */ | |
ddabe860 | 642 | __attribute__((visibility("hidden"))) |
d8d2416d FD |
643 | struct lttng_event_notifier_group *lttng_event_notifier_group_create(void); |
644 | ||
645 | /* | |
646 | * Destroy a `struct lttng_event_notifier_group` object. | |
647 | */ | |
ddabe860 | 648 | __attribute__((visibility("hidden"))) |
d8d2416d FD |
649 | void lttng_event_notifier_group_destroy( |
650 | struct lttng_event_notifier_group *event_notifier_group); | |
651 | ||
652 | /* | |
653 | * Allocate and initialize a `struct lttng_event_notifier_enabler` object. | |
654 | * | |
655 | * On success, returns a `struct lttng_event_notifier_enabler`, | |
656 | * On memory error, returns NULL. | |
657 | */ | |
ddabe860 | 658 | __attribute__((visibility("hidden"))) |
d8d2416d FD |
659 | struct lttng_event_notifier_enabler *lttng_event_notifier_enabler_create( |
660 | struct lttng_event_notifier_group *event_notifier_group, | |
661 | enum lttng_enabler_format_type format_type, | |
fd17d7ce | 662 | struct lttng_ust_abi_event_notifier *event_notifier_param); |
d8d2416d FD |
663 | |
664 | /* | |
665 | * Destroy a `struct lttng_event_notifier_enabler` object. | |
666 | */ | |
ddabe860 | 667 | __attribute__((visibility("hidden"))) |
d8d2416d FD |
668 | void lttng_event_notifier_enabler_destroy( |
669 | struct lttng_event_notifier_enabler *event_notifier_enabler); | |
670 | ||
671 | /* | |
672 | * Enable a `struct lttng_event_notifier_enabler` object and all event | |
673 | * notifiers related to this enabler. | |
674 | */ | |
ddabe860 | 675 | __attribute__((visibility("hidden"))) |
d8d2416d FD |
676 | int lttng_event_notifier_enabler_enable( |
677 | struct lttng_event_notifier_enabler *event_notifier_enabler); | |
678 | ||
679 | /* | |
680 | * Disable a `struct lttng_event_notifier_enabler` object and all event | |
681 | * notifiers related to this enabler. | |
682 | */ | |
ddabe860 | 683 | __attribute__((visibility("hidden"))) |
d8d2416d FD |
684 | int lttng_event_notifier_enabler_disable( |
685 | struct lttng_event_notifier_enabler *event_notifier_enabler); | |
686 | ||
687 | /* | |
688 | * Attach filter bytecode program to `struct lttng_event_notifier_enabler` and | |
689 | * all event notifiers related to this enabler. | |
690 | */ | |
ddabe860 | 691 | __attribute__((visibility("hidden"))) |
a56fd376 | 692 | int lttng_event_notifier_enabler_attach_filter_bytecode( |
d8d2416d | 693 | struct lttng_event_notifier_enabler *event_notifier_enabler, |
ab89263e | 694 | struct lttng_ust_bytecode_node **bytecode); |
d8d2416d | 695 | |
d37ecb3f FD |
696 | /* |
697 | * Attach capture bytecode program to `struct lttng_event_notifier_enabler` and | |
698 | * all event_notifiers related to this enabler. | |
699 | */ | |
ddabe860 | 700 | __attribute__((visibility("hidden"))) |
d37ecb3f FD |
701 | int lttng_event_notifier_enabler_attach_capture_bytecode( |
702 | struct lttng_event_notifier_enabler *event_notifier_enabler, | |
49cde654 | 703 | struct lttng_ust_bytecode_node **bytecode); |
d37ecb3f | 704 | |
d8d2416d FD |
705 | /* |
706 | * Attach exclusion list to `struct lttng_event_notifier_enabler` and all | |
707 | * event notifiers related to this enabler. | |
708 | */ | |
ddabe860 | 709 | __attribute__((visibility("hidden"))) |
d8d2416d FD |
710 | int lttng_event_notifier_enabler_attach_exclusion( |
711 | struct lttng_event_notifier_enabler *event_notifier_enabler, | |
e9fe6aad | 712 | struct lttng_ust_excluder_node **excluder); |
d8d2416d | 713 | |
ddabe860 | 714 | __attribute__((visibility("hidden"))) |
b1f720f0 | 715 | void lttng_free_event_filter_runtime(struct lttng_ust_event_common *event); |
d8d2416d FD |
716 | |
717 | /* | |
718 | * Connect the probe on all enablers matching this event description. | |
719 | * Called on library load. | |
720 | */ | |
ddabe860 | 721 | __attribute__((visibility("hidden"))) |
d8d2416d FD |
722 | int lttng_fix_pending_event_notifiers(void); |
723 | ||
ddabe860 | 724 | __attribute__((visibility("hidden"))) |
67d4e8f5 MJ |
725 | struct lttng_counter *lttng_ust_counter_create( |
726 | const char *counter_transport_name, | |
727 | size_t number_dimensions, const struct lttng_counter_dimension *dimensions); | |
728 | ||
bd8c1787 MJ |
729 | #ifdef HAVE_PERF_EVENT |
730 | ||
ddabe860 | 731 | __attribute__((visibility("hidden"))) |
bd8c1787 MJ |
732 | int lttng_add_perf_counter_to_ctx(uint32_t type, |
733 | uint64_t config, | |
734 | const char *name, | |
daacdbfc | 735 | struct lttng_ust_ctx **ctx); |
ddabe860 MJ |
736 | |
737 | __attribute__((visibility("hidden"))) | |
bd8c1787 | 738 | int lttng_perf_counter_init(void); |
ddabe860 MJ |
739 | |
740 | __attribute__((visibility("hidden"))) | |
bd8c1787 MJ |
741 | void lttng_perf_counter_exit(void); |
742 | ||
743 | #else /* #ifdef HAVE_PERF_EVENT */ | |
744 | ||
745 | static inline | |
746 | int lttng_add_perf_counter_to_ctx(uint32_t type, | |
747 | uint64_t config, | |
748 | const char *name, | |
daacdbfc | 749 | struct lttng_ust_ctx **ctx) |
bd8c1787 MJ |
750 | { |
751 | return -ENOSYS; | |
752 | } | |
753 | static inline | |
754 | int lttng_perf_counter_init(void) | |
755 | { | |
756 | return 0; | |
757 | } | |
758 | static inline | |
759 | void lttng_perf_counter_exit(void) | |
760 | { | |
761 | } | |
762 | #endif /* #else #ifdef HAVE_PERF_EVENT */ | |
763 | ||
ddabe860 | 764 | __attribute__((visibility("hidden"))) |
7753d283 | 765 | int lttng_probes_get_event_list(struct lttng_ust_tracepoint_list *list); |
ddabe860 MJ |
766 | |
767 | __attribute__((visibility("hidden"))) | |
7753d283 MJ |
768 | void lttng_probes_prune_event_list(struct lttng_ust_tracepoint_list *list); |
769 | ||
ddabe860 | 770 | __attribute__((visibility("hidden"))) |
7753d283 | 771 | int lttng_probes_get_field_list(struct lttng_ust_field_list *list); |
ddabe860 MJ |
772 | |
773 | __attribute__((visibility("hidden"))) | |
7753d283 MJ |
774 | void lttng_probes_prune_field_list(struct lttng_ust_field_list *list); |
775 | ||
ddabe860 | 776 | __attribute__((visibility("hidden"))) |
fd17d7ce | 777 | struct lttng_ust_abi_tracepoint_iter * |
7753d283 | 778 | lttng_ust_tracepoint_list_get_iter_next(struct lttng_ust_tracepoint_list *list); |
ddabe860 MJ |
779 | |
780 | __attribute__((visibility("hidden"))) | |
fd17d7ce | 781 | struct lttng_ust_abi_field_iter * |
7753d283 MJ |
782 | lttng_ust_field_list_get_iter_next(struct lttng_ust_field_list *list); |
783 | ||
ddabe860 | 784 | __attribute__((visibility("hidden"))) |
f69fe5fb | 785 | struct lttng_ust_session *lttng_session_create(void); |
ddabe860 MJ |
786 | |
787 | __attribute__((visibility("hidden"))) | |
f69fe5fb | 788 | int lttng_session_enable(struct lttng_ust_session *session); |
ddabe860 MJ |
789 | |
790 | __attribute__((visibility("hidden"))) | |
f69fe5fb | 791 | int lttng_session_disable(struct lttng_ust_session *session); |
ddabe860 MJ |
792 | |
793 | __attribute__((visibility("hidden"))) | |
f69fe5fb | 794 | int lttng_session_statedump(struct lttng_ust_session *session); |
ddabe860 MJ |
795 | |
796 | __attribute__((visibility("hidden"))) | |
f69fe5fb | 797 | void lttng_session_destroy(struct lttng_ust_session *session); |
7753d283 | 798 | |
a5ae46cc MJ |
799 | /* |
800 | * Called with ust lock held. | |
801 | */ | |
802 | __attribute__((visibility("hidden"))) | |
803 | int lttng_session_active(void); | |
804 | ||
ddabe860 | 805 | __attribute__((visibility("hidden"))) |
7753d283 MJ |
806 | struct cds_list_head *lttng_get_sessions(void); |
807 | ||
ddabe860 | 808 | __attribute__((visibility("hidden"))) |
7753d283 MJ |
809 | void lttng_handle_pending_statedump(void *owner); |
810 | ||
ddabe860 | 811 | __attribute__((visibility("hidden"))) |
e7bc0ef6 | 812 | int lttng_channel_enable(struct lttng_ust_channel_common *lttng_channel); |
7753d283 | 813 | |
ddabe860 | 814 | __attribute__((visibility("hidden"))) |
e7bc0ef6 | 815 | int lttng_channel_disable(struct lttng_ust_channel_common *lttng_channel); |
7753d283 | 816 | |
ddabe860 | 817 | __attribute__((visibility("hidden"))) |
7753d283 | 818 | void lttng_transport_register(struct lttng_transport *transport); |
ddabe860 MJ |
819 | |
820 | __attribute__((visibility("hidden"))) | |
7753d283 MJ |
821 | void lttng_transport_unregister(struct lttng_transport *transport); |
822 | ||
65c48d6a MJ |
823 | /* This is ABI between liblttng-ust and liblttng-ust-ctl */ |
824 | struct lttng_transport *lttng_ust_transport_find(const char *name); | |
825 | ||
cbba5e04 MJ |
826 | /* This is ABI between liblttng-ust and liblttng-ust-dl */ |
827 | void lttng_ust_dl_update(void *ip); | |
828 | ||
ddabe860 | 829 | __attribute__((visibility("hidden"))) |
dc11f93f | 830 | void lttng_probe_provider_unregister_events(struct lttng_ust_probe_desc *desc); |
7753d283 | 831 | |
ddabe860 | 832 | __attribute__((visibility("hidden"))) |
7753d283 MJ |
833 | int lttng_fix_pending_events(void); |
834 | ||
ddabe860 | 835 | __attribute__((visibility("hidden"))) |
7753d283 MJ |
836 | struct cds_list_head *lttng_get_probe_list_head(void); |
837 | ||
ddabe860 | 838 | __attribute__((visibility("hidden"))) |
f69fe5fb | 839 | struct lttng_enum *lttng_ust_enum_get_from_desc(struct lttng_ust_session *session, |
a084756d | 840 | struct lttng_ust_enum_desc *enum_desc); |
7753d283 | 841 | |
ddabe860 | 842 | __attribute__((visibility("hidden"))) |
fd17d7ce MD |
843 | int lttng_abi_create_root_handle(void); |
844 | ||
ddabe860 | 845 | __attribute__((visibility("hidden"))) |
fd17d7ce | 846 | const struct lttng_ust_abi_objd_ops *lttng_ust_abi_objd_ops(int id); |
ddabe860 MJ |
847 | |
848 | __attribute__((visibility("hidden"))) | |
fd17d7ce | 849 | int lttng_ust_abi_objd_unref(int id, int is_owner); |
ddabe860 MJ |
850 | |
851 | __attribute__((visibility("hidden"))) | |
fd17d7ce | 852 | void lttng_ust_abi_exit(void); |
ddabe860 MJ |
853 | |
854 | __attribute__((visibility("hidden"))) | |
fd17d7ce | 855 | void lttng_ust_abi_events_exit(void); |
ddabe860 MJ |
856 | |
857 | __attribute__((visibility("hidden"))) | |
fd17d7ce MD |
858 | void lttng_ust_abi_objd_table_owner_cleanup(void *owner); |
859 | ||
e7bc0ef6 MD |
860 | __attribute__((visibility("hidden"))) |
861 | struct lttng_ust_channel_buffer *lttng_ust_alloc_channel_buffer(void); | |
862 | ||
863 | __attribute__((visibility("hidden"))) | |
864 | void lttng_ust_free_channel_common(struct lttng_ust_channel_common *chan); | |
865 | ||
d871c65b | 866 | #endif /* _LTTNG_UST_EVENTS_INTERNAL_H */ |