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1239a312 | 1 | /* |
ab5be9fa MJ |
2 | * Copyright (C) 2014 David Goulet <dgoulet@efficios.com> |
3 | * Copyright (C) 2016 Jérémie Galarneau <jeremie.galarneau@efficios.com> | |
1239a312 | 4 | * |
ab5be9fa | 5 | * SPDX-License-Identifier: LGPL-2.1-only |
1239a312 | 6 | * |
1239a312 DG |
7 | */ |
8 | ||
9 | #ifndef LTTNG_EVENT_H | |
10 | #define LTTNG_EVENT_H | |
11 | ||
12 | #ifdef __cplusplus | |
13 | extern "C" { | |
14 | #endif | |
15 | ||
16 | #include <lttng/handle.h> | |
ef0e06bc | 17 | #include <lttng/userspace-probe.h> |
1239a312 DG |
18 | |
19 | /* | |
20 | * Instrumentation type of tracing event. | |
21 | */ | |
22 | enum lttng_event_type { | |
23 | LTTNG_EVENT_ALL = -1, | |
24 | LTTNG_EVENT_TRACEPOINT = 0, | |
25 | LTTNG_EVENT_PROBE = 1, | |
26 | LTTNG_EVENT_FUNCTION = 2, | |
27 | LTTNG_EVENT_FUNCTION_ENTRY = 3, | |
28 | LTTNG_EVENT_NOOP = 4, | |
29 | LTTNG_EVENT_SYSCALL = 5, | |
410b78a0 | 30 | LTTNG_EVENT_USERSPACE_PROBE = 6, |
1239a312 DG |
31 | }; |
32 | ||
33 | /* | |
34 | * Loglevel information. | |
35 | */ | |
36 | enum lttng_loglevel_type { | |
37 | LTTNG_EVENT_LOGLEVEL_ALL = 0, | |
38 | LTTNG_EVENT_LOGLEVEL_RANGE = 1, | |
39 | LTTNG_EVENT_LOGLEVEL_SINGLE = 2, | |
40 | }; | |
41 | ||
42 | /* | |
43 | * Available loglevels. | |
44 | */ | |
45 | enum lttng_loglevel { | |
46 | LTTNG_LOGLEVEL_EMERG = 0, | |
47 | LTTNG_LOGLEVEL_ALERT = 1, | |
48 | LTTNG_LOGLEVEL_CRIT = 2, | |
49 | LTTNG_LOGLEVEL_ERR = 3, | |
50 | LTTNG_LOGLEVEL_WARNING = 4, | |
51 | LTTNG_LOGLEVEL_NOTICE = 5, | |
52 | LTTNG_LOGLEVEL_INFO = 6, | |
53 | LTTNG_LOGLEVEL_DEBUG_SYSTEM = 7, | |
54 | LTTNG_LOGLEVEL_DEBUG_PROGRAM = 8, | |
55 | LTTNG_LOGLEVEL_DEBUG_PROCESS = 9, | |
56 | LTTNG_LOGLEVEL_DEBUG_MODULE = 10, | |
57 | LTTNG_LOGLEVEL_DEBUG_UNIT = 11, | |
58 | LTTNG_LOGLEVEL_DEBUG_FUNCTION = 12, | |
59 | LTTNG_LOGLEVEL_DEBUG_LINE = 13, | |
60 | LTTNG_LOGLEVEL_DEBUG = 14, | |
61 | }; | |
62 | ||
63 | /* | |
64 | * Available loglevels for the JUL domain. Those are an exact map from the | |
65 | * class java.util.logging.Level. | |
66 | */ | |
67 | enum lttng_loglevel_jul { | |
68 | LTTNG_LOGLEVEL_JUL_OFF = INT32_MAX, | |
69 | LTTNG_LOGLEVEL_JUL_SEVERE = 1000, | |
70 | LTTNG_LOGLEVEL_JUL_WARNING = 900, | |
71 | LTTNG_LOGLEVEL_JUL_INFO = 800, | |
72 | LTTNG_LOGLEVEL_JUL_CONFIG = 700, | |
73 | LTTNG_LOGLEVEL_JUL_FINE = 500, | |
74 | LTTNG_LOGLEVEL_JUL_FINER = 400, | |
75 | LTTNG_LOGLEVEL_JUL_FINEST = 300, | |
76 | LTTNG_LOGLEVEL_JUL_ALL = INT32_MIN, | |
77 | }; | |
78 | ||
5cdb6027 DG |
79 | /* |
80 | * Available loglevels for the LOG4j domain. Those are an exact map from the | |
81 | * class org.apache.log4j.Level. | |
82 | */ | |
83 | enum lttng_loglevel_log4j { | |
84 | LTTNG_LOGLEVEL_LOG4J_OFF = INT32_MAX, | |
85 | LTTNG_LOGLEVEL_LOG4J_FATAL = 50000, | |
86 | LTTNG_LOGLEVEL_LOG4J_ERROR = 40000, | |
87 | LTTNG_LOGLEVEL_LOG4J_WARN = 30000, | |
88 | LTTNG_LOGLEVEL_LOG4J_INFO = 20000, | |
89 | LTTNG_LOGLEVEL_LOG4J_DEBUG = 10000, | |
90 | LTTNG_LOGLEVEL_LOG4J_TRACE = 5000, | |
91 | LTTNG_LOGLEVEL_LOG4J_ALL = INT32_MIN, | |
92 | }; | |
93 | ||
0e115563 DG |
94 | /* |
95 | * Available loglevels for the Python domain. Those are an exact map from the | |
96 | * Level class. | |
97 | */ | |
98 | enum lttng_loglevel_python { | |
99 | LTTNG_LOGLEVEL_PYTHON_CRITICAL = 50, | |
100 | LTTNG_LOGLEVEL_PYTHON_ERROR = 40, | |
101 | LTTNG_LOGLEVEL_PYTHON_WARNING = 30, | |
102 | LTTNG_LOGLEVEL_PYTHON_INFO = 20, | |
103 | LTTNG_LOGLEVEL_PYTHON_DEBUG = 10, | |
104 | LTTNG_LOGLEVEL_PYTHON_NOTSET = 0, | |
105 | }; | |
106 | ||
1239a312 DG |
107 | /* |
108 | * LTTng consumer mode | |
109 | */ | |
110 | enum lttng_event_output { | |
111 | LTTNG_EVENT_SPLICE = 0, | |
112 | LTTNG_EVENT_MMAP = 1, | |
113 | }; | |
114 | ||
115 | /* Event context possible type */ | |
116 | enum lttng_event_context_type { | |
2001793c JG |
117 | LTTNG_EVENT_CONTEXT_PID = 0, |
118 | LTTNG_EVENT_CONTEXT_PERF_COUNTER = 1, /* Backward compat. */ | |
119 | LTTNG_EVENT_CONTEXT_PROCNAME = 2, | |
120 | LTTNG_EVENT_CONTEXT_PRIO = 3, | |
121 | LTTNG_EVENT_CONTEXT_NICE = 4, | |
122 | LTTNG_EVENT_CONTEXT_VPID = 5, | |
123 | LTTNG_EVENT_CONTEXT_TID = 6, | |
124 | LTTNG_EVENT_CONTEXT_VTID = 7, | |
125 | LTTNG_EVENT_CONTEXT_PPID = 8, | |
126 | LTTNG_EVENT_CONTEXT_VPPID = 9, | |
127 | LTTNG_EVENT_CONTEXT_PTHREAD_ID = 10, | |
128 | LTTNG_EVENT_CONTEXT_HOSTNAME = 11, | |
129 | LTTNG_EVENT_CONTEXT_IP = 12, | |
130 | LTTNG_EVENT_CONTEXT_PERF_CPU_COUNTER = 13, | |
1239a312 | 131 | LTTNG_EVENT_CONTEXT_PERF_THREAD_COUNTER = 14, |
2001793c | 132 | LTTNG_EVENT_CONTEXT_APP_CONTEXT = 15, |
1ae5e83e JD |
133 | LTTNG_EVENT_CONTEXT_INTERRUPTIBLE = 16, |
134 | LTTNG_EVENT_CONTEXT_PREEMPTIBLE = 17, | |
135 | LTTNG_EVENT_CONTEXT_NEED_RESCHEDULE = 18, | |
136 | LTTNG_EVENT_CONTEXT_MIGRATABLE = 19, | |
373148e9 FG |
137 | LTTNG_EVENT_CONTEXT_CALLSTACK_KERNEL = 20, |
138 | LTTNG_EVENT_CONTEXT_CALLSTACK_USER = 21, /* Supported on x86_32 and x86_64 only. */ | |
40e14884 MJ |
139 | LTTNG_EVENT_CONTEXT_CGROUP_NS = 22, |
140 | LTTNG_EVENT_CONTEXT_IPC_NS = 23, | |
141 | LTTNG_EVENT_CONTEXT_MNT_NS = 24, | |
142 | LTTNG_EVENT_CONTEXT_NET_NS = 25, | |
143 | LTTNG_EVENT_CONTEXT_PID_NS = 26, | |
144 | LTTNG_EVENT_CONTEXT_USER_NS = 27, | |
145 | LTTNG_EVENT_CONTEXT_UTS_NS = 28, | |
499cbfa1 MJ |
146 | LTTNG_EVENT_CONTEXT_UID = 29, |
147 | LTTNG_EVENT_CONTEXT_EUID = 30, | |
148 | LTTNG_EVENT_CONTEXT_SUID = 31, | |
149 | LTTNG_EVENT_CONTEXT_GID = 32, | |
150 | LTTNG_EVENT_CONTEXT_EGID = 33, | |
151 | LTTNG_EVENT_CONTEXT_SGID = 34, | |
152 | LTTNG_EVENT_CONTEXT_VUID = 35, | |
153 | LTTNG_EVENT_CONTEXT_VEUID = 36, | |
154 | LTTNG_EVENT_CONTEXT_VSUID = 37, | |
155 | LTTNG_EVENT_CONTEXT_VGID = 38, | |
156 | LTTNG_EVENT_CONTEXT_VEGID = 39, | |
157 | LTTNG_EVENT_CONTEXT_VSGID = 40, | |
d37ac3cd | 158 | LTTNG_EVENT_CONTEXT_TIME_NS = 41, |
1239a312 DG |
159 | }; |
160 | ||
161 | enum lttng_event_field_type { | |
162 | LTTNG_EVENT_FIELD_OTHER = 0, | |
163 | LTTNG_EVENT_FIELD_INTEGER = 1, | |
164 | LTTNG_EVENT_FIELD_ENUM = 2, | |
165 | LTTNG_EVENT_FIELD_FLOAT = 3, | |
166 | LTTNG_EVENT_FIELD_STRING = 4, | |
167 | }; | |
168 | ||
834978fd DG |
169 | enum lttng_event_flag { |
170 | LTTNG_EVENT_FLAG_SYSCALL_32 = (1U << 0), | |
171 | LTTNG_EVENT_FLAG_SYSCALL_64 = (1U << 1), | |
172 | }; | |
173 | ||
1239a312 DG |
174 | /* |
175 | * Perf counter attributes | |
176 | * | |
177 | * The structures should be initialized to zero before use. | |
178 | */ | |
179 | #define LTTNG_PERF_EVENT_PADDING1 16 | |
180 | struct lttng_event_perf_counter_ctx { | |
181 | uint32_t type; | |
182 | uint64_t config; | |
183 | char name[LTTNG_SYMBOL_NAME_LEN]; | |
184 | ||
185 | char padding[LTTNG_PERF_EVENT_PADDING1]; | |
186 | }; | |
187 | ||
188 | /* | |
189 | * Event/channel context | |
190 | * | |
191 | * The structures should be initialized to zero before use. | |
192 | */ | |
193 | #define LTTNG_EVENT_CONTEXT_PADDING1 16 | |
194 | #define LTTNG_EVENT_CONTEXT_PADDING2 LTTNG_SYMBOL_NAME_LEN + 32 | |
195 | struct lttng_event_context { | |
196 | enum lttng_event_context_type ctx; | |
197 | char padding[LTTNG_EVENT_CONTEXT_PADDING1]; | |
198 | ||
199 | union { | |
200 | struct lttng_event_perf_counter_ctx perf_counter; | |
2001793c JG |
201 | struct { |
202 | char *provider_name; | |
203 | char *ctx_name; | |
204 | } app_ctx; | |
1239a312 DG |
205 | char padding[LTTNG_EVENT_CONTEXT_PADDING2]; |
206 | } u; | |
207 | }; | |
208 | ||
209 | /* | |
210 | * Event probe. | |
211 | * | |
212 | * Either addr is used or symbol_name and offset. | |
213 | * | |
214 | * The structures should be initialized to zero before use. | |
215 | */ | |
216 | #define LTTNG_EVENT_PROBE_PADDING1 16 | |
217 | struct lttng_event_probe_attr { | |
218 | uint64_t addr; | |
219 | ||
220 | uint64_t offset; | |
221 | char symbol_name[LTTNG_SYMBOL_NAME_LEN]; | |
222 | ||
223 | char padding[LTTNG_EVENT_PROBE_PADDING1]; | |
224 | }; | |
225 | ||
226 | /* | |
227 | * Function tracer | |
228 | * | |
229 | * The structures should be initialized to zero before use. | |
230 | */ | |
231 | #define LTTNG_EVENT_FUNCTION_PADDING1 16 | |
232 | struct lttng_event_function_attr { | |
233 | char symbol_name[LTTNG_SYMBOL_NAME_LEN]; | |
234 | ||
235 | char padding[LTTNG_EVENT_FUNCTION_PADDING1]; | |
236 | }; | |
237 | ||
238 | /* | |
239 | * Generic lttng event | |
240 | * | |
241 | * The structures should be initialized to zero before use. | |
242 | */ | |
fe9ecacb | 243 | #define LTTNG_EVENT_PADDING1 12 |
1239a312 DG |
244 | #define LTTNG_EVENT_PADDING2 LTTNG_SYMBOL_NAME_LEN + 32 |
245 | struct lttng_event { | |
fe9ecacb | 246 | /* Offset 0 */ |
1239a312 | 247 | enum lttng_event_type type; |
fe9ecacb PP |
248 | |
249 | /* Offset 4 */ | |
1239a312 DG |
250 | char name[LTTNG_SYMBOL_NAME_LEN]; |
251 | ||
fe9ecacb | 252 | /* Offset 260 */ |
1239a312 | 253 | enum lttng_loglevel_type loglevel_type; |
fe9ecacb PP |
254 | |
255 | /* Offset 264 */ | |
1239a312 DG |
256 | int loglevel; |
257 | ||
fe9ecacb | 258 | /* Offset 268 */ |
1239a312 | 259 | int32_t enabled; /* Does not apply: -1 */ |
fe9ecacb PP |
260 | |
261 | /* Offset 272 */ | |
1239a312 | 262 | pid_t pid; |
fe9ecacb PP |
263 | |
264 | /* Offset 276 */ | |
1239a312 | 265 | unsigned char filter; /* filter enabled ? */ |
fe9ecacb PP |
266 | |
267 | /* Offset 277 */ | |
1239a312 DG |
268 | unsigned char exclusion; /* exclusions added ? */ |
269 | ||
fe9ecacb PP |
270 | /* Offset 278 */ |
271 | char padding2[2]; | |
272 | ||
273 | /* Offset 280 */ | |
834978fd DG |
274 | /* Event flag, from 2.6 and above. */ |
275 | enum lttng_event_flag flags; | |
276 | ||
fe9ecacb | 277 | /* Offset 284 */ |
b4e3ceb9 PP |
278 | char padding[4]; |
279 | ||
280 | /* Offset 288 */ | |
281 | union { | |
4829ae55 | 282 | uint64_t padding; |
b4e3ceb9 PP |
283 | void *ptr; |
284 | } extended; | |
1239a312 | 285 | |
fe9ecacb | 286 | /* Offset 296 */ |
1239a312 DG |
287 | /* Per event type configuration */ |
288 | union { | |
289 | struct lttng_event_probe_attr probe; | |
290 | struct lttng_event_function_attr ftrace; | |
291 | ||
292 | char padding[LTTNG_EVENT_PADDING2]; | |
293 | } attr; | |
294 | }; | |
295 | ||
296 | #define LTTNG_EVENT_FIELD_PADDING LTTNG_SYMBOL_NAME_LEN + 32 | |
297 | struct lttng_event_field { | |
298 | char field_name[LTTNG_SYMBOL_NAME_LEN]; | |
299 | enum lttng_event_field_type type; | |
300 | char padding[LTTNG_EVENT_FIELD_PADDING]; | |
301 | struct lttng_event event; | |
302 | int nowrite; | |
303 | }; | |
304 | ||
305 | /* | |
306 | * List the event(s) of a session channel. | |
307 | * | |
308 | * Both handle and channel_name CAN NOT be NULL. | |
309 | * | |
310 | * Return the size (number of entries) of the "lttng_event" array. Caller must | |
311 | * free events. On error a negative LTTng error code is returned. | |
312 | */ | |
313 | extern int lttng_list_events(struct lttng_handle *handle, | |
314 | const char *channel_name, struct lttng_event **events); | |
315 | ||
c8282375 JG |
316 | /* |
317 | * Create an lttng_event. | |
318 | * | |
319 | * This creation function, introduced in LTTng 2.11, works around | |
320 | * the fact that the layout of the 'lttng_event' is publicly exposed. | |
321 | * | |
322 | * It allocates a larger object which exposes the same public fields | |
323 | * as a 'struct lttng_event', but also allows the use of the following extended | |
324 | * attribute setters: | |
325 | * - lttng_event_set_userspace_probe_location(); | |
326 | * | |
327 | * Events created through this function must be destroyed using | |
328 | * lttng_event_destroy(). | |
329 | * | |
330 | * Returns a zeroed lttng_event on success, NULL on error. | |
331 | */ | |
ef0e06bc JG |
332 | extern struct lttng_event *lttng_event_create(void); |
333 | ||
c8282375 JG |
334 | /* |
335 | * Destroy an lttng_event. | |
336 | * | |
337 | * This destruction function, introduced in LTTng 2.11, should only | |
338 | * be used with events created by lttng_event_create(). | |
339 | */ | |
ef0e06bc JG |
340 | extern void lttng_event_destroy(struct lttng_event *event); |
341 | ||
d31d3e8c | 342 | /* |
134e72ed | 343 | * Get the filter expression of a specific LTTng event. |
d31d3e8c | 344 | * |
134e72ed JG |
345 | * If the call is successful, then the filter expression's address is put |
346 | * in *filter_expression. If the event has no filter expression, | |
347 | * *filter_expression is set to NULL. The caller does NOT own | |
348 | * *filter_expression. | |
d31d3e8c PP |
349 | * |
350 | * Returns 0 on success, or a negative LTTng error code on error. | |
351 | */ | |
134e72ed | 352 | extern int lttng_event_get_filter_expression(struct lttng_event *event, |
d31d3e8c PP |
353 | const char **filter_string); |
354 | ||
f086e50e PP |
355 | /* |
356 | * Get the number of exclusion names of a specific LTTng event. | |
357 | * | |
358 | * Returns the number of exclusion names on success, or a negative | |
359 | * LTTng error code on error. | |
360 | */ | |
361 | extern int lttng_event_get_exclusion_name_count(struct lttng_event *event); | |
362 | ||
363 | /* | |
364 | * Get an LTTng event's exclusion name at a given index. | |
365 | * | |
366 | * If the call is successful, then the exclusion name string's address | |
367 | * is put in *exclusion_name. The caller does NOT own *exclusion_name. | |
368 | * | |
369 | * Returns 0 on success, or a negative LTTng error code on error. | |
370 | */ | |
371 | extern int lttng_event_get_exclusion_name(struct lttng_event *event, | |
372 | size_t index, const char **exclusion_name); | |
373 | ||
ef0e06bc JG |
374 | /* |
375 | * Get the userspace probe location of a specific LTTng event. | |
376 | * If the call is successful, then a pointer to the probe location is returned. | |
377 | * If the event has no probe location a NULL pointer is returned. The caller | |
378 | * does not own the returned probe location. | |
379 | */ | |
87597c2c JG |
380 | extern const struct lttng_userspace_probe_location * |
381 | lttng_event_get_userspace_probe_location(const struct lttng_event *event); | |
ef0e06bc JG |
382 | |
383 | /* | |
384 | * Set an LTTng event's userspace probe location. | |
c8282375 | 385 | * |
ef0e06bc JG |
386 | * If the call is successful, then the probe location is set to the event. The |
387 | * ownership of the probe_location is given to the event. | |
388 | * | |
c8282375 JG |
389 | * Note that the event must have been created using 'lttng_event_create()' in |
390 | * order for this call to succeed. | |
391 | * | |
ef0e06bc JG |
392 | * Returns 0 on success, or a negative LTTng error code on error. |
393 | */ | |
394 | extern int lttng_event_set_userspace_probe_location(struct lttng_event *event, | |
395 | struct lttng_userspace_probe_location *probe_location); | |
396 | ||
1239a312 DG |
397 | /* |
398 | * List the available tracepoints of a specific lttng domain. | |
399 | * | |
400 | * The handle CAN NOT be NULL. | |
401 | * | |
402 | * Return the size (number of entries) of the "lttng_event" array. Caller must | |
403 | * free events. On error a negative LTTng error code is returned. | |
404 | */ | |
405 | extern int lttng_list_tracepoints(struct lttng_handle *handle, | |
406 | struct lttng_event **events); | |
407 | ||
408 | /* | |
409 | * List the available tracepoints fields of a specific lttng domain. | |
410 | * | |
411 | * The handle CAN NOT be NULL. | |
412 | * | |
413 | * Return the size (number of entries) of the "lttng_event_field" array. | |
414 | * Caller must free fields. On error a negative LTTng error code is | |
415 | * returned. | |
416 | */ | |
417 | extern int lttng_list_tracepoint_fields(struct lttng_handle *handle, | |
418 | struct lttng_event_field **fields); | |
419 | ||
834978fd DG |
420 | /* |
421 | * List the available kernel syscall. | |
422 | * | |
423 | * Return the size (number of entries) of the allocated "lttng_event" array. | |
424 | * All events in will be of type syscall. Caller must free events. On error a | |
425 | * negative LTTng error code is returned. | |
426 | */ | |
427 | extern int lttng_list_syscalls(struct lttng_event **events); | |
428 | ||
1239a312 DG |
429 | /* |
430 | * Add context to event(s) for a specific channel (or for all). | |
431 | * | |
432 | * If the channel_name is NULL and they are no channel for the domain, the | |
433 | * default channel is created (channel0). The context is then added on ALL | |
434 | * channels since no name was specified. | |
435 | * | |
436 | * The event_name is ignored since adding a context to an event is not possible | |
437 | * for now. | |
438 | * | |
439 | * Return 0 on success else a negative LTTng error code. | |
440 | */ | |
441 | extern int lttng_add_context(struct lttng_handle *handle, | |
442 | struct lttng_event_context *ctx, const char *event_name, | |
443 | const char *channel_name); | |
444 | ||
445 | /* | |
446 | * Create or enable an event (or events) for a channel. | |
447 | * | |
448 | * If the event you are trying to enable does not exist, it will be created, | |
449 | * else it is enabled. If channel_name is NULL, the default channel is used | |
450 | * (channel0). | |
451 | * | |
452 | * The handle and ev params can not be NULL. | |
453 | * | |
454 | * Return 0 on success else a negative LTTng error code. | |
455 | */ | |
456 | extern int lttng_enable_event(struct lttng_handle *handle, | |
457 | struct lttng_event *ev, const char *channel_name); | |
458 | ||
459 | /* | |
460 | * Create or enable an event with a specific filter. | |
461 | * | |
462 | * If the event you are trying to enable does not exist, it will be created, | |
463 | * else it is enabled. | |
464 | * If ev is NULL, all events are enabled with that filter. | |
465 | * If channel_name is NULL, the default channel is used (channel0) and created | |
466 | * if not found. | |
467 | * If filter_expression is NULL, an event without associated filter is | |
468 | * created. | |
469 | * | |
470 | * Return 0 on success else a negative LTTng error code. | |
471 | */ | |
472 | extern int lttng_enable_event_with_filter(struct lttng_handle *handle, | |
473 | struct lttng_event *event, const char *channel_name, | |
474 | const char *filter_expression); | |
475 | ||
476 | /* | |
477 | * Create or enable an event with a filter and/or exclusions. | |
478 | * | |
479 | * If the event you are trying to enable does not exist, it will be created, | |
480 | * else it is enabled. | |
481 | * If ev is NULL, all events are enabled with the filter and exclusion options. | |
482 | * If channel_name is NULL, the default channel is used (channel0) and created | |
483 | * if not found. | |
484 | * If filter_expression is NULL, an event without associated filter is | |
485 | * created. | |
486 | * If exclusion count is zero, the event will be created without exclusions. | |
487 | * | |
488 | * Return 0 on success else a negative LTTng error code. | |
489 | */ | |
490 | extern int lttng_enable_event_with_exclusions(struct lttng_handle *handle, | |
491 | struct lttng_event *event, const char *channel_name, | |
492 | const char *filter_expression, | |
493 | int exclusion_count, char **exclusion_names); | |
494 | ||
495 | /* | |
496 | * Disable event(s) of a channel and domain. | |
497 | * | |
498 | * If name is NULL, all events are disabled. | |
499 | * If channel_name is NULL, the default channel is used (channel0). | |
500 | * | |
501 | * Return 0 on success else a negative LTTng error code. | |
502 | */ | |
503 | extern int lttng_disable_event(struct lttng_handle *handle, | |
504 | const char *name, const char *channel_name); | |
505 | ||
6e911cad MD |
506 | /* |
507 | * Disable event(s) of a channel and domain. | |
508 | * | |
509 | * Takes a struct lttng_event as parameter. | |
510 | * If channel_name is NULL, the default channel is used (channel0). | |
511 | * | |
512 | * Currently, @filter_expression must be NULL. (disabling specific | |
513 | * filter expressions not implemented) | |
514 | * Currently, only LTTNG_EVENT_ALL and LTTNG_EVENT_SYSCALL event types | |
515 | * are implemented for field @ev. | |
516 | * | |
517 | * Return 0 on success else a negative LTTng error code. | |
518 | */ | |
519 | int lttng_disable_event_ext(struct lttng_handle *handle, | |
520 | struct lttng_event *ev, const char *channel_name, | |
521 | const char *filter_expression); | |
522 | ||
1239a312 DG |
523 | #ifdef __cplusplus |
524 | } | |
525 | #endif | |
526 | ||
527 | #endif /* LTTNG_EVENT_H */ |