Commit | Line | Data |
---|---|---|
c7e35b03 | 1 | /* |
ab5be9fa MJ |
2 | * Copyright (C) 2014 Jonathan Rajotte <jonathan.r.julien@gmail.com> |
3 | * Copyright (C) 2014 Olivier Cotte <olivier.cotte@polymtl.ca> | |
4 | * Copyright (C) 2016 Jérémie Galarneau <jeremie.galarneau@efficios.com> | |
c7e35b03 | 5 | * |
ab5be9fa | 6 | * SPDX-License-Identifier: GPL-2.0-only |
c7e35b03 | 7 | * |
c7e35b03 JR |
8 | */ |
9 | ||
10 | #ifndef _MI_LTTNG_H | |
11 | #define _MI_LTTNG_H | |
12 | ||
13 | #include <stdint.h> | |
14 | ||
15 | #include <common/error.h> | |
16 | #include <common/macros.h> | |
f40ef1d5 | 17 | #include <common/config/session-config.h> |
c7e35b03 JR |
18 | #include <lttng/lttng.h> |
19 | ||
50534d6f JRJ |
20 | /* Don't want to reference snapshot-internal.h here */ |
21 | struct lttng_snapshot_output; | |
22 | ||
c7e35b03 JR |
23 | /* Instance of a machine interface writer. */ |
24 | struct mi_writer { | |
25 | struct config_writer *writer; | |
26 | enum lttng_mi_output_type type; | |
27 | }; | |
28 | ||
29 | /* | |
30 | * Version information for the machine interface. | |
31 | */ | |
32 | struct mi_lttng_version { | |
36d2e35d | 33 | char version[LTTNG_NAME_MAX]; /* Version number of package */ |
c7e35b03 JR |
34 | uint32_t version_major; /* LTTng-Tools major version number */ |
35 | uint32_t version_minor; /* LTTng-Tools minor version number */ | |
36 | uint32_t version_patchlevel; /* LTTng-Tools patchlevel version number */ | |
36d2e35d MJ |
37 | char version_commit[LTTNG_NAME_MAX]; /* Commit hash of the current version */ |
38 | char version_name[LTTNG_NAME_MAX]; | |
39 | char package_url[LTTNG_NAME_MAX]; /* Define to the home page for this package. */ | |
c7e35b03 JR |
40 | }; |
41 | ||
42 | /* Strings related to command */ | |
4965f956 JG |
43 | extern const char * const mi_lttng_element_command; |
44 | extern const char * const mi_lttng_element_command_action; | |
45 | extern const char * const mi_lttng_element_command_add_context; | |
4965f956 JG |
46 | extern const char * const mi_lttng_element_command_create; |
47 | extern const char * const mi_lttng_element_command_destroy; | |
48 | extern const char * const mi_lttng_element_command_disable_channel; | |
49 | extern const char * const mi_lttng_element_command_disable_event; | |
50 | extern const char * const mi_lttng_element_command_enable_channels; | |
51 | extern const char * const mi_lttng_element_command_enable_event; | |
52 | extern const char * const mi_lttng_element_command_list; | |
53 | extern const char * const mi_lttng_element_command_load; | |
54897b57 JD |
54 | extern const char * const mi_lttng_element_command_metadata; |
55 | extern const char * const mi_lttng_element_command_metadata_action; | |
eded6438 JD |
56 | extern const char * const mi_lttng_element_command_regenerate; |
57 | extern const char * const mi_lttng_element_command_regenerate_action; | |
4965f956 JG |
58 | extern const char * const mi_lttng_element_command_name; |
59 | extern const char * const mi_lttng_element_command_output; | |
60 | extern const char * const mi_lttng_element_command_save; | |
61 | extern const char * const mi_lttng_element_command_set_session; | |
62 | extern const char * const mi_lttng_element_command_snapshot; | |
63 | extern const char * const mi_lttng_element_command_snapshot_add; | |
64 | extern const char * const mi_lttng_element_command_snapshot_del; | |
65 | extern const char * const mi_lttng_element_command_snapshot_list; | |
66 | extern const char * const mi_lttng_element_command_snapshot_record; | |
67 | extern const char * const mi_lttng_element_command_start; | |
68 | extern const char * const mi_lttng_element_command_stop; | |
69 | extern const char * const mi_lttng_element_command_success; | |
70 | extern const char * const mi_lttng_element_command_track; | |
71 | extern const char * const mi_lttng_element_command_untrack; | |
72 | extern const char * const mi_lttng_element_command_version; | |
d68c9a04 | 73 | extern const char * const mi_lttng_element_command_rotate; |
259c2674 JD |
74 | extern const char * const mi_lttng_element_command_enable_rotation; |
75 | extern const char * const mi_lttng_element_command_disable_rotation; | |
511ed4e2 | 76 | extern const char * const mi_lttng_element_command_clear; |
c7e35b03 | 77 | |
1734c658 | 78 | /* Strings related to version command */ |
4965f956 JG |
79 | extern const char * const mi_lttng_element_version; |
80 | extern const char * const mi_lttng_element_version_commit; | |
81 | extern const char * const mi_lttng_element_version_description; | |
82 | extern const char * const mi_lttng_element_version_license; | |
83 | extern const char * const mi_lttng_element_version_major; | |
84 | extern const char * const mi_lttng_element_version_minor; | |
85 | extern const char * const mi_lttng_element_version_patch_level; | |
86 | extern const char * const mi_lttng_element_version_str; | |
87 | extern const char * const mi_lttng_element_version_web; | |
c7e35b03 | 88 | |
5e18ec73 | 89 | /* String related to a lttng_event_field */ |
4965f956 JG |
90 | extern const char * const mi_lttng_element_event_field; |
91 | extern const char * const mi_lttng_element_event_fields; | |
5e18ec73 | 92 | |
89b72577 | 93 | /* String related to lttng_event_perf_counter_ctx */ |
4965f956 | 94 | extern const char * const mi_lttng_element_perf_counter_context; |
89b72577 | 95 | |
5e18ec73 | 96 | /* Strings related to pid */ |
4965f956 | 97 | extern const char * const mi_lttng_element_pid_id; |
5e18ec73 | 98 | |
1734c658 | 99 | /* Strings related to save command */ |
4965f956 | 100 | extern const char * const mi_lttng_element_save; |
1734c658 JRJ |
101 | |
102 | /* Strings related to load command */ | |
4965f956 | 103 | extern const char * const mi_lttng_element_load; |
44cdb3a2 MJ |
104 | LTTNG_HIDDEN extern const char * const mi_lttng_element_load_overrides; |
105 | LTTNG_HIDDEN extern const char * const mi_lttng_element_load_override_url; | |
1734c658 | 106 | |
5e18ec73 | 107 | /* General element of mi_lttng */ |
4965f956 JG |
108 | extern const char * const mi_lttng_element_empty; |
109 | extern const char * const mi_lttng_element_id; | |
110 | extern const char * const mi_lttng_element_nowrite; | |
111 | extern const char * const mi_lttng_element_success; | |
112 | extern const char * const mi_lttng_element_type_enum; | |
113 | extern const char * const mi_lttng_element_type_float; | |
114 | extern const char * const mi_lttng_element_type_integer; | |
115 | extern const char * const mi_lttng_element_type_other; | |
116 | extern const char * const mi_lttng_element_type_string; | |
5e18ec73 JR |
117 | |
118 | /* String related to loglevel */ | |
4965f956 JG |
119 | extern const char * const mi_lttng_loglevel_str_alert; |
120 | extern const char * const mi_lttng_loglevel_str_crit; | |
121 | extern const char * const mi_lttng_loglevel_str_debug; | |
122 | extern const char * const mi_lttng_loglevel_str_debug_function; | |
123 | extern const char * const mi_lttng_loglevel_str_debug_line; | |
124 | extern const char * const mi_lttng_loglevel_str_debug_module; | |
125 | extern const char * const mi_lttng_loglevel_str_debug_process; | |
126 | extern const char * const mi_lttng_loglevel_str_debug_program; | |
127 | extern const char * const mi_lttng_loglevel_str_debug_system; | |
128 | extern const char * const mi_lttng_loglevel_str_debug_unit; | |
129 | extern const char * const mi_lttng_loglevel_str_emerg; | |
130 | extern const char * const mi_lttng_loglevel_str_err; | |
131 | extern const char * const mi_lttng_loglevel_str_info; | |
132 | extern const char * const mi_lttng_loglevel_str_notice; | |
133 | extern const char * const mi_lttng_loglevel_str_unknown; | |
134 | extern const char * const mi_lttng_loglevel_str_warning; | |
5e18ec73 | 135 | |
136f2f81 | 136 | /* String related to loglevel JUL */ |
4965f956 JG |
137 | extern const char * const mi_lttng_loglevel_str_jul_all; |
138 | extern const char * const mi_lttng_loglevel_str_jul_config; | |
139 | extern const char * const mi_lttng_loglevel_str_jul_fine; | |
140 | extern const char * const mi_lttng_loglevel_str_jul_finer; | |
141 | extern const char * const mi_lttng_loglevel_str_jul_finest; | |
142 | extern const char * const mi_lttng_loglevel_str_jul_info; | |
143 | extern const char * const mi_lttng_loglevel_str_jul_off; | |
144 | extern const char * const mi_lttng_loglevel_str_jul_severe; | |
145 | extern const char * const mi_lttng_loglevel_str_jul_warning; | |
136f2f81 | 146 | |
970d848b | 147 | /* String related to loglevel Log4j */ |
4965f956 JG |
148 | extern const char * const mi_lttng_loglevel_str_log4j_off; |
149 | extern const char * const mi_lttng_loglevel_str_log4j_fatal; | |
150 | extern const char * const mi_lttng_loglevel_str_log4j_error; | |
151 | extern const char * const mi_lttng_loglevel_str_log4j_warn; | |
152 | extern const char * const mi_lttng_loglevel_str_log4j_info; | |
153 | extern const char * const mi_lttng_loglevel_str_log4j_debug; | |
154 | extern const char * const mi_lttng_loglevel_str_log4j_trace; | |
155 | extern const char * const mi_lttng_loglevel_str_log4j_all; | |
970d848b | 156 | |
0e115563 | 157 | /* String related to loglevel Python */ |
4965f956 JG |
158 | extern const char * const mi_lttng_loglevel_str_python_critical; |
159 | extern const char * const mi_lttng_loglevel_str_python_error; | |
160 | extern const char * const mi_lttng_loglevel_str_python_warning; | |
161 | extern const char * const mi_lttng_loglevel_str_python_info; | |
162 | extern const char * const mi_lttng_loglevel_str_python_debug; | |
163 | extern const char * const mi_lttng_loglevel_str_python_notset; | |
0e115563 | 164 | |
1734c658 | 165 | /* String related to loglevel type */ |
4965f956 JG |
166 | extern const char * const mi_lttng_loglevel_type_all; |
167 | extern const char * const mi_lttng_loglevel_type_range; | |
168 | extern const char * const mi_lttng_loglevel_type_single; | |
169 | extern const char * const mi_lttng_loglevel_type_unknown; | |
5e18ec73 | 170 | |
136f2f81 | 171 | /* String related to a lttng_snapshot */ |
4965f956 JG |
172 | extern const char * const mi_lttng_element_snapshot_ctrl_url; |
173 | extern const char * const mi_lttng_element_snapshot_data_url; | |
174 | extern const char * const mi_lttng_element_snapshot_max_size; | |
175 | extern const char * const mi_lttng_element_snapshot_n_ptr; | |
176 | extern const char * const mi_lttng_element_snapshot_session_name; | |
177 | extern const char * const mi_lttng_element_snapshots; | |
50534d6f | 178 | |
a23cb78a | 179 | /* String related to track/untrack command */ |
44cdb3a2 | 180 | extern const char * const mi_lttng_element_track_untrack_all_wildcard; |
a23cb78a | 181 | |
44cdb3a2 | 182 | LTTNG_HIDDEN extern const char * const mi_lttng_element_session_name; |
d68c9a04 JD |
183 | |
184 | /* String related to rotate command */ | |
44cdb3a2 MJ |
185 | LTTNG_HIDDEN extern const char * const mi_lttng_element_rotation; |
186 | LTTNG_HIDDEN extern const char * const mi_lttng_element_rotate_status; | |
187 | LTTNG_HIDDEN extern const char * const mi_lttng_element_rotation_schedule; | |
188 | LTTNG_HIDDEN extern const char * const mi_lttng_element_rotation_schedules; | |
189 | LTTNG_HIDDEN extern const char * const mi_lttng_element_rotation_schedule_periodic; | |
190 | LTTNG_HIDDEN extern const char * const mi_lttng_element_rotation_schedule_periodic_time_us; | |
191 | LTTNG_HIDDEN extern const char * const mi_lttng_element_rotation_schedule_size_threshold; | |
192 | LTTNG_HIDDEN extern const char * const mi_lttng_element_rotation_schedule_size_threshold_bytes; | |
193 | LTTNG_HIDDEN extern const char * const mi_lttng_element_rotation_schedule_result; | |
194 | LTTNG_HIDDEN extern const char * const mi_lttng_element_rotation_schedule_results; | |
195 | LTTNG_HIDDEN extern const char * const mi_lttng_element_rotation_state; | |
196 | LTTNG_HIDDEN extern const char * const mi_lttng_element_rotation_location; | |
197 | LTTNG_HIDDEN extern const char * const mi_lttng_element_rotation_location_local; | |
198 | LTTNG_HIDDEN extern const char * const mi_lttng_element_rotation_location_local_absolute_path; | |
199 | LTTNG_HIDDEN extern const char * const mi_lttng_element_rotation_location_relay; | |
200 | LTTNG_HIDDEN extern const char * const mi_lttng_element_rotation_location_relay_host; | |
201 | LTTNG_HIDDEN extern const char * const mi_lttng_element_rotation_location_relay_control_port; | |
202 | LTTNG_HIDDEN extern const char * const mi_lttng_element_rotation_location_relay_data_port; | |
203 | LTTNG_HIDDEN extern const char * const mi_lttng_element_rotation_location_relay_protocol; | |
204 | LTTNG_HIDDEN extern const char * const mi_lttng_element_rotation_location_relay_relative_path; | |
91c4d516 JG |
205 | |
206 | /* String related to enum lttng_rotation_state */ | |
44cdb3a2 MJ |
207 | LTTNG_HIDDEN extern const char * const mi_lttng_rotation_state_str_ongoing; |
208 | LTTNG_HIDDEN extern const char * const mi_lttng_rotation_state_str_completed; | |
209 | LTTNG_HIDDEN extern const char * const mi_lttng_rotation_state_str_expired; | |
210 | LTTNG_HIDDEN extern const char * const mi_lttng_rotation_state_str_error; | |
91c4d516 JG |
211 | |
212 | /* String related to enum lttng_trace_archive_location_relay_protocol_type */ | |
44cdb3a2 | 213 | LTTNG_HIDDEN extern const char * const mi_lttng_rotation_location_relay_protocol_str_tcp; |
d68c9a04 | 214 | |
59deec0c JR |
215 | /* String related to add-context command */ |
216 | LTTNG_HIDDEN extern const char * const mi_lttng_element_context_symbol; | |
217 | ||
5e18ec73 | 218 | /* Utility string function */ |
970d848b | 219 | const char *mi_lttng_loglevel_string(int value, enum lttng_domain_type domain); |
5e18ec73 JR |
220 | const char *mi_lttng_logleveltype_string(enum lttng_loglevel_type value); |
221 | const char *mi_lttng_eventfieldtype_string(enum lttng_event_field_type value); | |
222 | const char *mi_lttng_domaintype_string(enum lttng_domain_type value); | |
223 | const char *mi_lttng_buffertype_string(enum lttng_buffer_type value); | |
91c4d516 JG |
224 | const char *mi_lttng_rotation_state_string(enum lttng_rotation_state value); |
225 | const char *mi_lttng_trace_archive_location_relay_protocol_type_string( | |
226 | enum lttng_trace_archive_location_relay_protocol_type value); | |
5e18ec73 | 227 | |
c7e35b03 JR |
228 | /* |
229 | * Create an instance of a machine interface writer. | |
230 | * | |
231 | * fd_output File to which the XML content must be written. The file will be | |
232 | * closed once the mi_writer has been destroyed. | |
233 | * | |
234 | * Returns an instance of a machine interface writer on success, NULL on | |
235 | * error. | |
236 | */ | |
237 | struct mi_writer *mi_lttng_writer_create(int fd_output, int mi_output_type); | |
238 | ||
239 | /* | |
240 | * Destroy an instance of a machine interface writer. | |
241 | * | |
242 | * writer An instance of a machine interface writer. | |
243 | * | |
244 | * Returns zero if the XML document could be closed cleanly. Negative values | |
245 | * indicate an error. | |
246 | */ | |
247 | int mi_lttng_writer_destroy(struct mi_writer *writer); | |
248 | ||
249 | /* | |
250 | * Open a command tag and add it's name node. | |
251 | * | |
252 | * writer An instance of a machine interface writer. | |
c7e35b03 JR |
253 | * command The command name. |
254 | * | |
255 | * Returns zero if the XML document could be closed cleanly. | |
256 | * Negative values indicate an error. | |
257 | */ | |
258 | int mi_lttng_writer_command_open(struct mi_writer *writer, const char *command); | |
259 | ||
260 | /* | |
261 | * Close a command tag. | |
262 | * | |
263 | * writer An instance of a machine interface writer. | |
264 | * | |
265 | * Returns zero if the XML document could be closed cleanly. | |
266 | * Negative values indicate an error. | |
267 | */ | |
268 | int mi_lttng_writer_command_close(struct mi_writer *writer); | |
269 | ||
270 | /* | |
271 | * Open an element tag. | |
272 | * | |
273 | * writer An instance of a machine interface writer. | |
c7e35b03 JR |
274 | * element_name Element tag name. |
275 | * | |
276 | * Returns zero if the XML document could be closed cleanly. | |
277 | * Negative values indicate an error. | |
278 | */ | |
279 | int mi_lttng_writer_open_element(struct mi_writer *writer, | |
280 | const char *element_name); | |
281 | ||
282 | /* | |
283 | * Close the current element tag. | |
284 | * | |
285 | * writer An instance of a machine interface writer. | |
286 | * | |
287 | * Returns zero if the XML document could be closed cleanly. | |
288 | * Negative values indicate an error. | |
289 | */ | |
290 | int mi_lttng_writer_close_element(struct mi_writer *writer); | |
291 | ||
292 | /* | |
5e18ec73 | 293 | * Close multiple element. |
c7e35b03 JR |
294 | * |
295 | * writer An instance of a machine interface writer. | |
5e18ec73 | 296 | * nb_element Number of elements. |
c7e35b03 | 297 | * |
5e18ec73 JR |
298 | * Returns zero if the XML document could be closed cleanly. |
299 | * Negative values indicate an error. | |
300 | */ | |
301 | int mi_lttng_close_multi_element(struct mi_writer *writer, | |
302 | unsigned int nb_element); | |
303 | ||
304 | /* | |
305 | * Write an element of type unsigned int. | |
c7e35b03 | 306 | * |
5e18ec73 JR |
307 | * writer An instance of a machine interface writer. |
308 | * element_name Element name. | |
c7e35b03 JR |
309 | * value Unsigned int value of the element |
310 | * | |
311 | * Returns zero if the element's value could be written. | |
312 | * Negative values indicate an error. | |
313 | */ | |
314 | int mi_lttng_writer_write_element_unsigned_int(struct mi_writer *writer, | |
315 | const char *element_name, uint64_t value); | |
316 | ||
317 | /* | |
318 | * Write an element of type signed int. | |
319 | * | |
320 | * writer An instance of a machine interface writer. | |
c7e35b03 | 321 | * element_name Element name. |
5e18ec73 | 322 | * value Signed int value of the element. |
c7e35b03 JR |
323 | * |
324 | * Returns zero if the element's value could be written. | |
325 | * Negative values indicate an error. | |
326 | */ | |
327 | int mi_lttng_writer_write_element_signed_int(struct mi_writer *writer, | |
328 | const char *element_name, int64_t value); | |
329 | ||
330 | /* | |
331 | * Write an element of type boolean. | |
332 | * | |
333 | * writer An instance of a machine interface writer. | |
c7e35b03 | 334 | * element_name Element name. |
5e18ec73 | 335 | * value Boolean value of the element. |
c7e35b03 JR |
336 | * |
337 | * Returns zero if the element's value could be written. | |
338 | * Negative values indicate an error. | |
339 | */ | |
340 | int mi_lttng_writer_write_element_bool(struct mi_writer *writer, | |
341 | const char *element_name, int value); | |
342 | ||
343 | /* | |
344 | * Write an element of type string. | |
345 | * | |
346 | * writer An instance of a machine interface writer. | |
c7e35b03 | 347 | * element_name Element name. |
5e18ec73 | 348 | * value String value of the element. |
c7e35b03 JR |
349 | * |
350 | * Returns zero if the element's value could be written. | |
351 | * Negative values indicate an error. | |
352 | */ | |
353 | int mi_lttng_writer_write_element_string(struct mi_writer *writer, | |
354 | const char *element_name, const char *value); | |
355 | ||
356 | /* | |
357 | * Machine interface of struct version. | |
358 | * | |
359 | * writer An instance of a machine interface writer. | |
c7e35b03 | 360 | * version Version struct. |
c7e35b03 | 361 | * lttng_description String value of the version description. |
c7e35b03 JR |
362 | * lttng_license String value of the version license. |
363 | * | |
364 | * Returns zero if the element's value could be written. | |
365 | * Negative values indicate an error. | |
366 | */ | |
367 | int mi_lttng_version(struct mi_writer *writer, struct mi_lttng_version *version, | |
368 | const char *lttng_description, const char *lttng_license); | |
369 | ||
370 | /* | |
5e18ec73 | 371 | * Machine interface: open a sessions element. |
c7e35b03 | 372 | * |
5e18ec73 | 373 | * writer An instance of a machine interface writer. |
c7e35b03 | 374 | * |
5e18ec73 JR |
375 | * Returns zero if the element's value could be written. |
376 | * Negative values indicate an error. | |
377 | */ | |
378 | int mi_lttng_sessions_open(struct mi_writer *writer); | |
379 | ||
380 | /* | |
381 | * Machine interface of struct session. | |
c7e35b03 | 382 | * |
5e18ec73 JR |
383 | * writer An instance of a machine interface writer. |
384 | * session An instance of a session. | |
385 | * is_open Defines whether or not the session element shall be closed. | |
386 | * This should be used carefully and the client | |
387 | * must close the session element. | |
136f2f81 | 388 | * Use case: nested additional information on a session |
c7e35b03 | 389 | * ex: domain,channel event. |
c7e35b03 JR |
390 | * |
391 | * Returns zero if the element's value could be written. | |
392 | * Negative values indicate an error. | |
393 | */ | |
394 | int mi_lttng_session(struct mi_writer *writer, | |
5e18ec73 JR |
395 | struct lttng_session *session, int is_open); |
396 | ||
397 | /* | |
398 | * Machine interface: open a domains element. | |
399 | * | |
400 | * writer An instance of a machine interface writer. | |
401 | * | |
402 | * Returns zero if the element's value could be written. | |
403 | * Negative values indicate an error. | |
404 | */ | |
405 | int mi_lttng_domains_open(struct mi_writer *writer); | |
406 | ||
407 | /* | |
408 | * Machine interface of struct domain. | |
409 | * | |
410 | * writer An instance of a machine interface writer. | |
411 | * domain An instance of a domain. | |
412 | * | |
413 | * is_open Defines whether or not the session element shall be closed. | |
414 | * This should be used carefully and the client | |
415 | * must close the domain element. | |
416 | * Use case: nested addition information on a domain | |
417 | * ex: channel event. | |
418 | * | |
419 | * Returns zero if the element's value could be written. | |
420 | * Negative values indicate an error. | |
421 | */ | |
422 | int mi_lttng_domain(struct mi_writer *writer, | |
423 | struct lttng_domain *domain, int is_open); | |
424 | ||
425 | /* | |
426 | * Machine interface: open a channels element. | |
427 | * | |
428 | * writer An instance of a machine interface writer. | |
429 | * | |
430 | * Returns zero if the element's value could be written. | |
431 | * Negative values indicate an error. | |
432 | */ | |
433 | int mi_lttng_channels_open(struct mi_writer *writer); | |
434 | ||
435 | /* | |
436 | * Machine interface of struct channel. | |
437 | * | |
438 | * writer An instance of a machine interface writer. | |
439 | * channel An instance of a channel. | |
440 | * | |
441 | * is_open Defines whether or not the session element shall be closed. | |
442 | * This should be used carefully and the client | |
443 | * must close the channel element. | |
444 | * Use case: nested addition information on a channel. | |
445 | * ex: channel event. | |
446 | * | |
447 | * Returns zero if the element's value could be written. | |
448 | * Negative values indicate an error. | |
449 | */ | |
450 | int mi_lttng_channel(struct mi_writer *writer, | |
451 | struct lttng_channel *channel, int is_open); | |
452 | ||
453 | /* | |
454 | * Machine interface of struct channel_attr. | |
455 | * | |
456 | * writer An instance of a machine interface writer. | |
457 | * attr An instance of a channel_attr struct. | |
458 | * | |
459 | * Returns zero if the element's value could be written. | |
460 | * Negative values indicate an error. | |
461 | */ | |
462 | int mi_lttng_channel_attr(struct mi_writer *writer, | |
463 | struct lttng_channel_attr *attr); | |
464 | ||
465 | /* | |
466 | * Machine interface for event common attributes. | |
467 | * | |
468 | * writer An instance of a mi writer. | |
469 | * event single trace event. | |
470 | * | |
471 | * The common attribute are: | |
472 | * - mi event element | |
473 | * - event name | |
474 | * - event type | |
475 | * - enabled tag | |
476 | * - event filter | |
477 | * | |
478 | * Returns zero if the element's value could be written. | |
479 | * Negative values indicate an error. | |
480 | */ | |
481 | int mi_lttng_event_common_attributes(struct mi_writer *writer, | |
482 | struct lttng_event *event); | |
483 | ||
484 | /* | |
485 | * Machine interface for kernel tracepoint event with a loglevel. | |
486 | * | |
487 | * writer An instance of a mi writer. | |
488 | * event single trace event. | |
970d848b | 489 | * domain Event's domain |
5e18ec73 JR |
490 | * |
491 | * Returns zero if the element's value could be written. | |
492 | * Negative values indicate an error. | |
493 | */ | |
494 | int mi_lttng_event_tracepoint_loglevel(struct mi_writer *writer, | |
970d848b | 495 | struct lttng_event *event, enum lttng_domain_type domain); |
5e18ec73 JR |
496 | |
497 | /* | |
498 | * Machine interface for kernel tracepoint event with no loglevel. | |
499 | * | |
500 | * writer An instance of a mi writer. | |
501 | * event single trace event. | |
502 | * | |
503 | * Returns zero if the element's value could be written. | |
504 | * Negative values indicate an error. | |
505 | */ | |
506 | int mi_lttng_event_tracepoint_no_loglevel(struct mi_writer *writer, | |
507 | struct lttng_event *event); | |
508 | ||
509 | /* | |
510 | * Machine interface for kernel function and probe event. | |
511 | * | |
512 | * writer An instance of a mi writer. | |
513 | * event single trace event. | |
514 | * | |
515 | * Returns zero if the element's value could be written. | |
516 | * Negative values indicate an error. | |
517 | */ | |
518 | int mi_lttng_event_function_probe(struct mi_writer *writer, | |
519 | struct lttng_event *event); | |
520 | ||
521 | /* | |
522 | * Machine interface for kernel function entry event. | |
523 | * | |
524 | * writer An instance of a mi writer. | |
525 | * event single trace event. | |
526 | * | |
527 | * Returns zero if the element's value could be written. | |
528 | * Negative values indicate an error. | |
529 | */ | |
530 | int mi_lttng_event_function_entry(struct mi_writer *writer, | |
531 | struct lttng_event *event); | |
532 | ||
533 | /* | |
534 | * Machine interface: open an events element. | |
535 | * | |
536 | * writer An instance of a machine interface writer. | |
537 | * | |
538 | * Returns zero if the element's value could be written. | |
539 | * Negative values indicate an error. | |
540 | */ | |
541 | int mi_lttng_events_open(struct mi_writer *writer); | |
542 | ||
543 | /* | |
544 | * Machine interface for printing an event. | |
545 | * The trace event type currently supported are: | |
546 | * TRACEPOINT, | |
547 | * PROBE, | |
548 | * FUNCTION, | |
549 | * FUNCTION_ENTRY, | |
550 | * SYSCALL | |
551 | * | |
552 | * writer An instance of a mi writer. | |
553 | * event single trace event. | |
554 | * is_open Defines whether or not the session element shall be closed. | |
555 | * This should be used carefully and the client | |
556 | * must close the event element. | |
557 | * Use case: nested additional information | |
970d848b | 558 | * domain Event's domain |
5e18ec73 JR |
559 | * |
560 | * Returns zero if the element's value could be written. | |
561 | * Negative values indicate an error. | |
562 | */ | |
563 | int mi_lttng_event(struct mi_writer *writer, struct lttng_event *event, | |
970d848b | 564 | int is_open, enum lttng_domain_type domain); |
5e18ec73 JR |
565 | |
566 | /* | |
567 | * Machine interface for struct lttng_event_field. | |
568 | * | |
569 | * writer An instance of a mi writer. | |
570 | * field An event_field instance. | |
571 | * | |
572 | * Returns zero if the element's value could be written. | |
573 | * Negative values indicate an error. | |
574 | */ | |
575 | int mi_lttng_event_field(struct mi_writer *writer, | |
576 | struct lttng_event_field *field); | |
577 | ||
578 | /* | |
579 | * Machine interface: open a event_fields element. | |
580 | * | |
581 | * writer An instance of a machine interface writer. | |
582 | * | |
e4d484a5 | 583 | * Returns zero if the element have be written. |
5e18ec73 JR |
584 | * Negative values indicate an error. |
585 | */ | |
586 | int mi_lttng_event_fields_open(struct mi_writer *writer); | |
587 | ||
ebbf5ab7 JR |
588 | /* |
589 | * Machine interface: open a trackers element. | |
590 | * | |
591 | * writer An instance of a machine interface writer. | |
592 | * | |
593 | * Returns zero if the element's value could be written. | |
594 | * Negative values indicate an error. | |
595 | */ | |
596 | int mi_lttng_trackers_open(struct mi_writer *writer); | |
597 | ||
598 | /* | |
159b042f | 599 | * Machine interface: open a process attribute tracker element. |
ebbf5ab7 JR |
600 | * |
601 | * writer An instance of a machine interface writer. | |
602 | * | |
603 | * Returns zero if the element's value could be written. | |
604 | * Negative values indicate an error. | |
605 | * | |
606 | * Note: A targets element is also opened for each tracker definition | |
607 | */ | |
159b042f JG |
608 | int mi_lttng_process_attribute_tracker_open( |
609 | struct mi_writer *writer, enum lttng_process_attr process_attr); | |
ebbf5ab7 | 610 | |
5e18ec73 JR |
611 | /* |
612 | * Machine interface: open a PIDs element. | |
613 | * | |
614 | * writer An instance of a machine interface writer. | |
615 | * | |
616 | * Returns zero if the element's value could be written. | |
617 | * Negative values indicate an error. | |
618 | */ | |
619 | int mi_lttng_pids_open(struct mi_writer *writer); | |
620 | ||
621 | /* | |
ebbf5ab7 JR |
622 | * Machine interface: open a processes element. |
623 | * | |
624 | * writer An instance of a machine interface writer. | |
625 | * | |
626 | * Returns zero if the element's value could be written. | |
627 | * Negative values indicate an error. | |
628 | */ | |
629 | int mi_lttng_processes_open(struct mi_writer *writer); | |
630 | ||
631 | /* | |
632 | * Machine interface of a Process. | |
5e18ec73 JR |
633 | * |
634 | * writer An instance of a machine interface writer. | |
635 | * pid A PID. | |
636 | * | |
637 | * is_open Defines whether or not the session element shall be closed. | |
638 | * This should be used carefully and the client | |
639 | * must close the pid element. | |
640 | * Use case: nested addition information on a domain | |
641 | * ex: channel event. | |
642 | * | |
643 | * Returns zero if the element's value could be written. | |
644 | * Negative values indicate an error. | |
645 | */ | |
ebbf5ab7 | 646 | int mi_lttng_process(struct mi_writer *writer, pid_t pid , const char *name, |
5e18ec73 | 647 | int is_open); |
bf239d4c JR |
648 | |
649 | /* | |
650 | * TODO: move pid of lttng list -u to process semantic on mi api bump | |
651 | * Machine interface of a Process. | |
652 | * | |
653 | * writer An instance of a machine interface writer. | |
654 | * pid A PID. | |
655 | * | |
656 | * is_open Defines whether or not the session element shall be closed. | |
657 | * This should be used carefully and the client | |
658 | * must close the pid element. | |
659 | * Use case: nested addition information on a domain | |
660 | * ex: channel event. | |
661 | * | |
662 | * Returns zero if the element's value could be written. | |
663 | * Negative values indicate an error. | |
664 | */ | |
665 | int mi_lttng_pid(struct mi_writer *writer, pid_t pid , const char *name, | |
666 | int is_open); | |
159b042f | 667 | |
ebbf5ab7 | 668 | /* |
159b042f | 669 | * Machine interface: open a process attribute values element. |
ebbf5ab7 JR |
670 | * |
671 | * writer An instance of a machine interface writer. | |
672 | * | |
673 | * Returns zero if the element's value could be written. | |
674 | * Negative values indicate an error. | |
675 | */ | |
159b042f | 676 | int mi_lttng_process_attr_values_open(struct mi_writer *writer); |
ebbf5ab7 JR |
677 | |
678 | /* | |
159b042f | 679 | * Machine interface for track/untrack of all process attribute values. |
ebbf5ab7 JR |
680 | * |
681 | * writer An instance of a machine interface writer. | |
682 | * | |
683 | * Returns zero if the element's value could be written. | |
684 | * Negative values indicate an error. | |
685 | */ | |
159b042f JG |
686 | int mi_lttng_all_process_attribute_value(struct mi_writer *writer, |
687 | enum lttng_process_attr process_attr, | |
688 | bool is_open); | |
689 | ||
690 | /* | |
691 | * Machine interface for track/untrack of an integral process attribute value. | |
692 | * | |
693 | * writer An instance of a machine interface writer. | |
694 | * | |
695 | * Returns zero if the element's value could be written. | |
696 | * Negative values indicate an error. | |
697 | */ | |
698 | int mi_lttng_integral_process_attribute_value(struct mi_writer *writer, | |
699 | enum lttng_process_attr process_attr, | |
700 | int64_t value, | |
701 | bool is_open); | |
702 | ||
703 | /* | |
704 | * Machine interface for track/untrack of a string process attribute value. | |
705 | * | |
706 | * writer An instance of a machine interface writer. | |
707 | * | |
708 | * Returns zero if the element's value could be written. | |
709 | * Negative values indicate an error. | |
710 | */ | |
711 | int mi_lttng_string_process_attribute_value(struct mi_writer *writer, | |
712 | enum lttng_process_attr process_attr, | |
713 | const char *value, | |
714 | bool is_open); | |
c7e35b03 | 715 | |
89b72577 JRJ |
716 | /* |
717 | * Machine interface of a context. | |
718 | * | |
719 | * writer An instance of a machine interface writer | |
720 | * | |
721 | * context An instance of a lttng_event_context | |
722 | * | |
723 | * is_open Define if we close the context element | |
724 | * This should be used carefully and the client | |
725 | * need to close the context element. | |
89b72577 JRJ |
726 | * Returns zero if the element's value could be written. |
727 | * Negative values indicate an error. | |
728 | */ | |
729 | int mi_lttng_context(struct mi_writer *writer, | |
730 | struct lttng_event_context *context, int is_open); | |
731 | ||
732 | /* | |
733 | * Machine interface of a perf_counter_context. | |
734 | * | |
735 | * writer An instance of a machine interface writer | |
736 | * | |
737 | * contest An instance of a lttng_event_perf_counter_ctx | |
738 | * | |
739 | * Returns zero if the element's value could be written. | |
740 | * Negative values indicate an error. | |
741 | */ | |
742 | int mi_lttng_perf_counter_context(struct mi_writer *writer, | |
743 | struct lttng_event_perf_counter_ctx *perf_context); | |
744 | ||
50534d6f JRJ |
745 | /* |
746 | * Machine interface of the snapshot list_output. | |
747 | * It specifies the session for which we are listing snapshots, | |
748 | * and it opens a snapshots element to list a sequence | |
749 | * of snapshots. | |
750 | * | |
751 | * writer An instance of a machine interface writer. | |
752 | * | |
753 | * session_name: Snapshot output for session "session_name". | |
754 | * | |
755 | * Note: The client has to close the session and the snapshots elements after | |
756 | * having listed every lttng_snapshot_output. | |
757 | * | |
758 | * Returns zero if the element's value could be written. | |
759 | * Negative values indicate an error. | |
760 | */ | |
761 | int mi_lttng_snapshot_output_session_name(struct mi_writer *writer, | |
762 | const char *session_name); | |
763 | ||
764 | /* | |
765 | * Machine interface of the snapshot output. | |
766 | * The machine interface serializes the following attributes: | |
767 | * - id: ID of the snapshot output. | |
768 | * - name: Name of the output. | |
769 | * - data_url : Destination of the output. | |
770 | * - ctrl_url: Destination of the output. | |
771 | * - max_size: total size of all stream combined. | |
772 | * | |
773 | * writer An instance of a machine interface writer. | |
774 | * | |
775 | * output: A list of snapshot_output. | |
776 | * | |
777 | * Returns zero if the element's value could be written. | |
778 | * Negative values indicate an error. | |
779 | */ | |
780 | int mi_lttng_snapshot_list_output(struct mi_writer *writer, | |
781 | struct lttng_snapshot_output *output); | |
782 | ||
783 | /* | |
784 | * Machine interface of the output of the command snapshot del output | |
785 | * when deleting a snapshot either by id or by name. | |
786 | * If the snapshot was found and successfully deleted using its id, | |
787 | * it return the id of the snapshot and the current session name on which it | |
788 | * was attached. | |
789 | * | |
790 | * Otherwise, it do the same process with the name of the snapshot, if the | |
791 | * snapshot output id is undefined. | |
792 | * | |
793 | * writer An instance of a machine interface writer. | |
794 | * | |
795 | * id: ID of the snapshot output. | |
796 | * | |
797 | * name: Name of the snapshot. | |
798 | * | |
799 | * current_session_name: Session to which the snapshot belongs. | |
800 | * | |
801 | * Returns zero if the element's value could be written. | |
802 | * Negative values indicate an error. | |
803 | */ | |
804 | int mi_lttng_snapshot_del_output(struct mi_writer *writer, int id, | |
805 | const char *name, const char *current_session_name); | |
806 | ||
807 | /* | |
808 | * Machine interface of the output of the command snapshot add output | |
809 | * when adding a snapshot from a user URL. | |
810 | * | |
811 | * If the snapshot was successfully added, the machine interface lists | |
812 | * these information: | |
813 | * - id: ID of the newly add snapshot output. | |
814 | * - current_session_name: Name of the session to which the output was added. | |
815 | * - ctrl_url: Destination of the output. | |
816 | * - max_size: total size of all stream combined. | |
817 | * | |
818 | * writer An instance of a machine interface writer. | |
819 | * | |
820 | * current_session_name: Session to which the snapshot belongs. | |
821 | * | |
822 | * n_ptr: | |
823 | * | |
824 | * output: iterator over a lttng_snapshot_output_list which contain | |
825 | * the snapshot output informations. | |
826 | * | |
827 | * Returns zero if the element's value could be written. | |
828 | * Negative values indicate an error. | |
829 | */ | |
830 | int mi_lttng_snapshot_add_output(struct mi_writer *writer, | |
831 | const char *current_session_name, const char *n_ptr, | |
832 | struct lttng_snapshot_output *output); | |
833 | ||
834 | /* | |
835 | * Machine interface of the output of the command snapshot | |
836 | * record from a URL (if given). | |
837 | * | |
838 | * If the snapshot is successfully recorded from a url, the machine interface | |
839 | * output the following information: | |
840 | * - url: Destination of the output stored in the snapshot. | |
841 | * | |
842 | * Otherwise, the machine interface output the data and ctrl url received | |
843 | * from the command-line. | |
844 | * | |
845 | * writer An instance of a machine interface writer. | |
846 | * | |
847 | * current_session_name: Snapshot record for session "current_session_name". | |
848 | * | |
849 | * ctrl_url, data_url: Destination of the output receive from the command-line. | |
850 | * | |
851 | * Returns zero if the element's value could be written. | |
852 | * Negative values indicate an error. | |
853 | */ | |
854 | int mi_lttng_snapshot_record(struct mi_writer *writer, | |
855 | const char *current_session_name, const char *url, | |
856 | const char *cmdline_ctrl_url, const char *cmdline_data_url); | |
857 | ||
66ea93b1 JG |
858 | /* |
859 | * Machine interface representation of a session rotation schedule. | |
860 | * | |
861 | * The machine interface serializes the provided schedule as one of the choices | |
862 | * from 'rotation_schedule_type'. | |
863 | * | |
864 | * writer: An instance of a machine interface writer. | |
865 | * | |
866 | * schedule: An lttng rotation schedule descriptor object. | |
867 | * | |
868 | * Returns zero if the element's value could be written. | |
869 | * Negative values indicate an error. | |
870 | */ | |
871 | int mi_lttng_rotation_schedule(struct mi_writer *writer, | |
872 | const struct lttng_rotation_schedule *schedule); | |
873 | ||
874 | /* | |
875 | * Machine interface of a session rotation schedule result. | |
876 | * This is an element that is part of the output of the enable-rotation and | |
877 | * disable-rotation commands. | |
878 | * | |
879 | * The machine interface provides the following information: | |
880 | * - schedule: the session rotation schedule descriptor. | |
881 | * - success: whether the sub-command succeeded. | |
882 | * | |
883 | * writer: An instance of a machine interface writer. | |
884 | * | |
66ea93b1 JG |
885 | * schedule: An lttng rotation schedule descriptor object. |
886 | * | |
887 | * success: Whether the sub-command suceeded. | |
888 | * | |
889 | * Returns zero if the element's value could be written. | |
890 | * Negative values indicate an error. | |
891 | */ | |
892 | int mi_lttng_rotation_schedule_result(struct mi_writer *writer, | |
893 | const struct lttng_rotation_schedule *schedule, | |
894 | bool success); | |
895 | ||
91c4d516 JG |
896 | /* |
897 | * Machine interface of a session rotation result. | |
898 | * This is an element that is part of the output of the rotate command. | |
899 | * | |
900 | * The machine interface provides the following information: | |
901 | * - session_name: the session to be rotated. | |
902 | * - state: the session rotation state. | |
903 | * - location: the location of the completed chunk archive. | |
904 | * | |
905 | * writer: An instance of a machine interface writer. | |
906 | * | |
907 | * session_name: The session to which the rotate command applies. | |
908 | * | |
909 | * location: A location descriptor object. | |
910 | * | |
911 | * success: Whether the sub-command suceeded. | |
912 | * | |
913 | * Returns zero if the element's value could be written. | |
914 | * Negative values indicate an error. | |
915 | */ | |
916 | int mi_lttng_rotate(struct mi_writer *writer, | |
917 | const char *session_name, | |
918 | enum lttng_rotation_state rotation_state, | |
919 | const struct lttng_trace_archive_location *location); | |
920 | ||
c7e35b03 | 921 | #endif /* _MI_LTTNG_H */ |