Commit | Line | Data |
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c7e35b03 JR |
1 | /* |
2 | * Copyright (C) 2014 - Jonathan Rajotte <jonathan.r.julien@gmail.com> | |
3 | * - Olivier Cotte <olivier.cotte@polymtl.ca> | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or modify it | |
6 | * under the terms of the GNU General Public License, version 2 only, as | |
7 | * published by the Free Software Foundation. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
12 | * more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License along with | |
15 | * this program; if not, write to the Free Software Foundation, Inc., 51 | |
16 | * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
17 | */ | |
18 | ||
5e18ec73 | 19 | |
c7e35b03 JR |
20 | #include <include/config.h> |
21 | #include <common/config/config.h> | |
c7e35b03 JR |
22 | #include "mi-lttng.h" |
23 | ||
5e18ec73 JR |
24 | #include <assert.h> |
25 | ||
c7e35b03 JR |
26 | /* Strings related to command */ |
27 | const char * const mi_lttng_element_command = "command"; | |
28 | const char * const mi_lttng_element_command_version = "version"; | |
29 | const char * const mi_lttng_element_command_list = "list"; | |
30 | const char * const mi_lttng_element_command_name = "name"; | |
31 | const char * const mi_lttng_element_command_output = "output"; | |
32 | ||
33 | /* Strings related to command: version */ | |
34 | const char * const mi_lttng_element_version = "version"; | |
35 | const char * const mi_lttng_element_version_str = "string"; | |
36 | const char * const mi_lttng_element_version_web = "url"; | |
37 | const char * const mi_lttng_element_version_major = "major"; | |
38 | const char * const mi_lttng_element_version_minor = "minor"; | |
314d5222 | 39 | const char * const mi_lttng_element_version_commit = "commit"; |
c7e35b03 JR |
40 | const char * const mi_lttng_element_version_license = "license"; |
41 | const char * const mi_lttng_element_version_patch_level = "patchLevel"; | |
42 | const char * const mi_lttng_element_version_description = "description"; | |
43 | ||
5e18ec73 JR |
44 | /* Strings related to pid */ |
45 | const char * const mi_lttng_element_pids = "pids"; | |
46 | const char * const mi_lttng_element_pid = "pid"; | |
47 | const char * const mi_lttng_element_pid_id = "id"; | |
48 | ||
49 | /* String related to a lttng_event_field */ | |
50 | const char * const mi_lttng_element_event_field = "event_field"; | |
51 | const char * const mi_lttng_element_event_fields = "event_fields"; | |
52 | ||
53 | /* General elements of mi_lttng */ | |
54 | const char * const mi_lttng_element_type_other = "OTHER"; | |
55 | const char * const mi_lttng_element_type_integer = "INTEGER"; | |
56 | const char * const mi_lttng_element_type_enum = "ENUM"; | |
57 | const char * const mi_lttng_element_type_float = "FLOAT"; | |
58 | const char * const mi_lttng_element_type_string = "STRING"; | |
59 | const char * const mi_lttng_element_nowrite = "nowrite"; | |
60 | ||
61 | /* String related to loglevel */ | |
62 | const char * const mi_lttng_loglevel_str_alert = "TRACE_ALERT"; | |
63 | const char * const mi_lttng_loglevel_str_crit = "TRACE_CRIT"; | |
64 | const char * const mi_lttng_loglevel_str_debug = "TRACE_DEBUG"; | |
65 | const char * const mi_lttng_loglevel_str_debug_function = "TRACE_DEBUG_FUNCTION"; | |
66 | const char * const mi_lttng_loglevel_str_debug_line = "TRACE_DEBUG_LINE"; | |
67 | const char * const mi_lttng_loglevel_str_debug_module = "TRACE_DEBUG_MODULE"; | |
68 | const char * const mi_lttng_loglevel_str_debug_process = "TRACE_DEBUG_PROCESS"; | |
69 | const char * const mi_lttng_loglevel_str_debug_program = "TRACE_DEBUG_PROGRAM"; | |
70 | const char * const mi_lttng_loglevel_str_debug_system = "TRACE_DEBUG_SYSTEM"; | |
71 | const char * const mi_lttng_loglevel_str_debug_unit = "TRACE_DEBUG_UNIT"; | |
72 | const char * const mi_lttng_loglevel_str_emerg = "TRACE_EMERG"; | |
73 | const char * const mi_lttng_loglevel_str_err = "TRACE_ERR"; | |
74 | const char * const mi_lttng_loglevel_str_info = "TRACE_INFO"; | |
75 | const char * const mi_lttng_loglevel_str_notice = "TRACE_NOTICE"; | |
76 | const char * const mi_lttng_loglevel_str_unknown = "UNKNOWN"; | |
77 | const char * const mi_lttng_loglevel_str_warning = "TRACE_WARNING"; | |
78 | ||
79 | const char * const mi_lttng_loglevel_type_all = "ALL"; | |
80 | const char * const mi_lttng_loglevel_type_range = "RANGE"; | |
81 | const char * const mi_lttng_loglevel_type_single = "SINGLE"; | |
82 | const char * const mi_lttng_loglevel_type_unknown = "UNKNOWN"; | |
83 | ||
84 | const char * const mi_lttng_element_empty = ""; | |
85 | ||
86 | const char *mi_lttng_loglevel_string(int value) | |
87 | { | |
88 | switch (value) { | |
89 | case -1: | |
90 | return mi_lttng_element_empty; | |
91 | case LTTNG_LOGLEVEL_EMERG: | |
92 | return mi_lttng_loglevel_str_emerg; | |
93 | case LTTNG_LOGLEVEL_ALERT: | |
94 | return mi_lttng_loglevel_str_alert; | |
95 | case LTTNG_LOGLEVEL_CRIT: | |
96 | return mi_lttng_loglevel_str_crit; | |
97 | case LTTNG_LOGLEVEL_ERR: | |
98 | return mi_lttng_loglevel_str_err; | |
99 | case LTTNG_LOGLEVEL_WARNING: | |
100 | return mi_lttng_loglevel_str_warning; | |
101 | case LTTNG_LOGLEVEL_NOTICE: | |
102 | return mi_lttng_loglevel_str_notice; | |
103 | case LTTNG_LOGLEVEL_INFO: | |
104 | return mi_lttng_loglevel_str_info; | |
105 | case LTTNG_LOGLEVEL_DEBUG_SYSTEM: | |
106 | return mi_lttng_loglevel_str_debug_system; | |
107 | case LTTNG_LOGLEVEL_DEBUG_PROGRAM: | |
108 | return mi_lttng_loglevel_str_debug_program; | |
109 | case LTTNG_LOGLEVEL_DEBUG_PROCESS: | |
110 | return mi_lttng_loglevel_str_debug_process; | |
111 | case LTTNG_LOGLEVEL_DEBUG_MODULE: | |
112 | return mi_lttng_loglevel_str_debug_module; | |
113 | case LTTNG_LOGLEVEL_DEBUG_UNIT: | |
114 | return mi_lttng_loglevel_str_debug_unit; | |
115 | case LTTNG_LOGLEVEL_DEBUG_FUNCTION: | |
116 | return mi_lttng_loglevel_str_debug_function; | |
117 | case LTTNG_LOGLEVEL_DEBUG_LINE: | |
118 | return mi_lttng_loglevel_str_debug_line; | |
119 | case LTTNG_LOGLEVEL_DEBUG: | |
120 | return mi_lttng_loglevel_str_debug; | |
121 | default: | |
122 | return mi_lttng_loglevel_str_unknown; | |
123 | } | |
124 | } | |
125 | ||
126 | const char *mi_lttng_logleveltype_string(enum lttng_loglevel_type value) | |
127 | { | |
128 | switch (value) { | |
129 | case LTTNG_EVENT_LOGLEVEL_ALL: | |
130 | return mi_lttng_loglevel_type_all; | |
131 | case LTTNG_EVENT_LOGLEVEL_RANGE: | |
132 | return mi_lttng_loglevel_type_range; | |
133 | case LTTNG_EVENT_LOGLEVEL_SINGLE: | |
134 | return mi_lttng_loglevel_type_single; | |
135 | default: | |
136 | return mi_lttng_loglevel_type_unknown; | |
137 | } | |
138 | } | |
139 | ||
140 | const char *mi_lttng_eventtype_string(enum lttng_event_type value) | |
141 | { | |
142 | switch (value) { | |
143 | case LTTNG_EVENT_ALL: | |
144 | return config_event_type_all; | |
145 | case LTTNG_EVENT_TRACEPOINT: | |
146 | return config_event_type_tracepoint; | |
147 | case LTTNG_EVENT_PROBE: | |
148 | return config_event_type_probe; | |
149 | case LTTNG_EVENT_FUNCTION: | |
150 | return config_event_type_function; | |
151 | case LTTNG_EVENT_FUNCTION_ENTRY: | |
152 | return config_event_type_function_entry; | |
153 | case LTTNG_EVENT_SYSCALL: | |
154 | return config_event_type_syscall; | |
155 | case LTTNG_EVENT_NOOP: | |
156 | return config_event_type_noop; | |
157 | default: | |
158 | return mi_lttng_element_empty; | |
159 | } | |
160 | } | |
161 | ||
162 | const char *mi_lttng_eventfieldtype_string(enum lttng_event_field_type val) | |
163 | { | |
164 | switch (val) { | |
165 | case(LTTNG_EVENT_FIELD_INTEGER): | |
166 | return mi_lttng_element_type_integer; | |
167 | case(LTTNG_EVENT_FIELD_ENUM): | |
168 | return mi_lttng_element_type_enum; | |
169 | case(LTTNG_EVENT_FIELD_FLOAT): | |
170 | return mi_lttng_element_type_float; | |
171 | case(LTTNG_EVENT_FIELD_STRING): | |
172 | return mi_lttng_element_type_string; | |
173 | default: | |
174 | return mi_lttng_element_type_other; | |
175 | } | |
176 | } | |
177 | ||
178 | const char *mi_lttng_domaintype_string(enum lttng_domain_type value) | |
179 | { | |
180 | /* Note: This is a *duplicate* of get_domain_str from bin/lttng/utils.c */ | |
181 | switch (value) { | |
182 | case LTTNG_DOMAIN_KERNEL: | |
183 | return config_domain_type_kernel; | |
184 | case LTTNG_DOMAIN_UST: | |
185 | return config_domain_type_ust; | |
186 | case LTTNG_DOMAIN_JUL: | |
187 | return config_domain_type_jul; | |
188 | default: | |
189 | /* Should not have an unknown domain */ | |
190 | assert(0); | |
191 | } | |
192 | } | |
193 | ||
194 | const char *mi_lttng_buffertype_string(enum lttng_buffer_type value) | |
195 | { | |
196 | switch (value) { | |
197 | case LTTNG_BUFFER_PER_PID: | |
198 | return config_buffer_type_per_pid; | |
199 | case LTTNG_BUFFER_PER_UID: | |
200 | return config_buffer_type_per_uid; | |
201 | case LTTNG_BUFFER_GLOBAL: | |
202 | return config_buffer_type_global; | |
203 | default: | |
204 | /* Should not have an unknow buffer type */ | |
205 | assert(0); | |
206 | } | |
207 | } | |
208 | ||
c7e35b03 JR |
209 | LTTNG_HIDDEN |
210 | struct mi_writer *mi_lttng_writer_create(int fd_output, int mi_output_type) | |
211 | { | |
212 | struct mi_writer *mi_writer; | |
213 | ||
214 | mi_writer = zmalloc(sizeof(struct mi_writer)); | |
215 | if (!mi_writer) { | |
216 | PERROR("zmalloc mi_writer_create"); | |
217 | goto end; | |
218 | } | |
219 | if (mi_output_type == LTTNG_MI_XML) { | |
220 | mi_writer->writer = config_writer_create(fd_output); | |
221 | if (!mi_writer->writer) { | |
222 | goto err_destroy; | |
223 | } | |
224 | mi_writer->type = LTTNG_MI_XML; | |
225 | } else { | |
226 | goto err_destroy; | |
227 | } | |
228 | ||
229 | end: | |
230 | return mi_writer; | |
231 | ||
232 | err_destroy: | |
233 | free(mi_writer); | |
234 | return NULL; | |
235 | } | |
236 | ||
237 | LTTNG_HIDDEN | |
238 | int mi_lttng_writer_destroy(struct mi_writer *writer) | |
239 | { | |
240 | int ret; | |
241 | ||
242 | if (!writer) { | |
243 | ret = -EINVAL; | |
244 | goto end; | |
245 | } | |
246 | ||
247 | ret = config_writer_destroy(writer->writer); | |
248 | if (ret < 0) { | |
249 | goto end; | |
250 | } | |
251 | ||
252 | free(writer); | |
253 | end: | |
254 | return ret; | |
255 | } | |
256 | ||
257 | LTTNG_HIDDEN | |
258 | int mi_lttng_writer_command_open(struct mi_writer *writer, const char *command) | |
259 | { | |
260 | int ret; | |
261 | ||
262 | ret = mi_lttng_writer_open_element(writer, mi_lttng_element_command); | |
263 | if (ret) { | |
264 | goto end; | |
265 | } | |
266 | ret = mi_lttng_writer_write_element_string(writer, | |
267 | mi_lttng_element_command_name, command); | |
268 | end: | |
269 | return ret; | |
270 | } | |
271 | ||
272 | LTTNG_HIDDEN | |
273 | int mi_lttng_writer_command_close(struct mi_writer *writer) | |
274 | { | |
275 | return mi_lttng_writer_close_element(writer); | |
276 | } | |
277 | ||
278 | LTTNG_HIDDEN | |
279 | int mi_lttng_writer_open_element(struct mi_writer *writer, | |
280 | const char *element_name) | |
281 | { | |
282 | return config_writer_open_element(writer->writer, element_name); | |
283 | } | |
284 | ||
285 | LTTNG_HIDDEN | |
286 | int mi_lttng_writer_close_element(struct mi_writer *writer) | |
287 | { | |
288 | return config_writer_close_element(writer->writer); | |
289 | } | |
290 | ||
5e18ec73 JR |
291 | LTTNG_HIDDEN |
292 | int mi_lttng_close_multi_element(struct mi_writer *writer, | |
293 | unsigned int nb_element) | |
294 | { | |
295 | int ret, i; | |
296 | ||
297 | if (nb_element < 1) { | |
298 | ret = 0; | |
299 | goto end; | |
300 | } | |
301 | for (i = 0; i < nb_element; i++) { | |
302 | ret = mi_lttng_writer_close_element(writer); | |
303 | if (ret) { | |
304 | goto end; | |
305 | } | |
306 | } | |
307 | end: | |
308 | return ret; | |
309 | } | |
310 | ||
c7e35b03 JR |
311 | LTTNG_HIDDEN |
312 | int mi_lttng_writer_write_element_unsigned_int(struct mi_writer *writer, | |
313 | const char *element_name, uint64_t value) | |
314 | { | |
315 | return config_writer_write_element_unsigned_int(writer->writer, | |
316 | element_name, value); | |
317 | } | |
318 | ||
319 | LTTNG_HIDDEN | |
320 | int mi_lttng_writer_write_element_signed_int(struct mi_writer *writer, | |
321 | const char *element_name, int64_t value) | |
322 | { | |
323 | return config_writer_write_element_signed_int(writer->writer, | |
324 | element_name, value); | |
325 | } | |
326 | ||
327 | LTTNG_HIDDEN | |
328 | int mi_lttng_writer_write_element_bool(struct mi_writer *writer, | |
329 | const char *element_name, int value) | |
330 | { | |
331 | return config_writer_write_element_bool(writer->writer, | |
332 | element_name, value); | |
333 | } | |
334 | ||
335 | LTTNG_HIDDEN | |
336 | int mi_lttng_writer_write_element_string(struct mi_writer *writer, | |
337 | const char *element_name, const char *value) | |
338 | { | |
339 | return config_writer_write_element_string(writer->writer, | |
340 | element_name, value); | |
341 | } | |
342 | ||
343 | LTTNG_HIDDEN | |
344 | int mi_lttng_version(struct mi_writer *writer, struct mi_lttng_version *version, | |
345 | const char *lttng_description, const char *lttng_license) | |
346 | { | |
347 | int ret; | |
348 | ||
349 | /* Open version */ | |
350 | ret = mi_lttng_writer_open_element(writer, mi_lttng_element_version); | |
351 | if (ret) { | |
352 | goto end; | |
353 | } | |
354 | ||
355 | /* Version string (contain info like rc etc.) */ | |
356 | ret = mi_lttng_writer_write_element_string(writer, | |
357 | mi_lttng_element_version_str, VERSION); | |
358 | if (ret) { | |
359 | goto end; | |
360 | } | |
361 | ||
362 | /* Major version number */ | |
363 | ret = mi_lttng_writer_write_element_unsigned_int(writer, | |
364 | mi_lttng_element_version_major, version->version_major); | |
365 | if (ret) { | |
366 | goto end; | |
367 | } | |
368 | ||
369 | /* Minor version number */ | |
370 | ret = mi_lttng_writer_write_element_unsigned_int(writer, | |
371 | mi_lttng_element_version_minor, version->version_minor); | |
372 | if (ret) { | |
373 | goto end; | |
374 | } | |
375 | ||
314d5222 JRJ |
376 | /* Commit version number */ |
377 | ret = mi_lttng_writer_write_element_string(writer, | |
378 | mi_lttng_element_version_commit, version->version_commit); | |
379 | if (ret) { | |
380 | goto end; | |
381 | } | |
382 | ||
c7e35b03 JR |
383 | /* Patch number */ |
384 | ret = mi_lttng_writer_write_element_unsigned_int(writer, | |
385 | mi_lttng_element_version_patch_level, version->version_patchlevel); | |
386 | if (ret) { | |
387 | goto end; | |
388 | } | |
389 | ||
390 | /* Name of the version */ | |
391 | ret = mi_lttng_writer_write_element_string(writer, | |
392 | config_element_name, version->version_name); | |
393 | if (ret) { | |
394 | goto end; | |
395 | } | |
396 | ||
397 | /* Description mostly related to beer... */ | |
398 | ret = mi_lttng_writer_write_element_string(writer, | |
399 | mi_lttng_element_version_description, lttng_description); | |
400 | if (ret) { | |
401 | goto end; | |
402 | } | |
403 | ||
404 | /* url */ | |
405 | ret = mi_lttng_writer_write_element_string(writer, | |
406 | mi_lttng_element_version_web, version->package_url); | |
407 | if (ret) { | |
408 | goto end; | |
409 | } | |
410 | ||
411 | /* License: free as in free beer...no...*speech* */ | |
412 | ret = mi_lttng_writer_write_element_string(writer, | |
413 | mi_lttng_element_version_license, lttng_license); | |
414 | if (ret) { | |
415 | goto end; | |
416 | } | |
417 | ||
418 | /* Close version element */ | |
419 | ret = mi_lttng_writer_close_element(writer); | |
420 | ||
421 | end: | |
422 | return ret; | |
423 | } | |
424 | ||
5e18ec73 JR |
425 | LTTNG_HIDDEN |
426 | int mi_lttng_sessions_open(struct mi_writer *writer) | |
427 | { | |
428 | return mi_lttng_writer_open_element(writer, config_element_sessions); | |
429 | } | |
430 | ||
c7e35b03 JR |
431 | LTTNG_HIDDEN |
432 | int mi_lttng_session(struct mi_writer *writer, | |
433 | struct lttng_session *session, int is_open) | |
434 | { | |
435 | int ret; | |
436 | ||
5e18ec73 JR |
437 | assert(session); |
438 | ||
439 | /* Open sessions element */ | |
c7e35b03 JR |
440 | ret = mi_lttng_writer_open_element(writer, |
441 | config_element_session); | |
442 | if (ret) { | |
443 | goto end; | |
444 | } | |
445 | ||
446 | /* Name of the session */ | |
447 | ret = mi_lttng_writer_write_element_string(writer, | |
448 | config_element_name, session->name); | |
449 | if (ret) { | |
450 | goto end; | |
451 | } | |
452 | ||
5e18ec73 | 453 | /* Path */ |
c7e35b03 JR |
454 | ret = mi_lttng_writer_write_element_string(writer, |
455 | config_element_path, session->path); | |
456 | if (ret) { | |
457 | goto end; | |
458 | } | |
459 | ||
5e18ec73 JR |
460 | /* Enabled ? */ |
461 | ret = mi_lttng_writer_write_element_bool(writer, | |
c7e35b03 JR |
462 | config_element_enabled, session->enabled); |
463 | if (ret) { | |
464 | goto end; | |
465 | } | |
466 | ||
5e18ec73 | 467 | /* Snapshot mode */ |
c7e35b03 JR |
468 | ret = mi_lttng_writer_write_element_unsigned_int(writer, |
469 | config_element_snapshot_mode, session->snapshot_mode); | |
470 | if (ret) { | |
471 | goto end; | |
472 | } | |
473 | ||
5e18ec73 | 474 | /* Live timer interval in usec */ |
c7e35b03 JR |
475 | ret = mi_lttng_writer_write_element_unsigned_int(writer, |
476 | config_element_live_timer_interval, | |
477 | session->live_timer_interval); | |
478 | if (ret) { | |
479 | goto end; | |
480 | } | |
481 | ||
482 | if (!is_open) { | |
483 | /* Closing session element */ | |
484 | ret = mi_lttng_writer_close_element(writer); | |
485 | } | |
486 | end: | |
487 | return ret; | |
488 | ||
489 | } | |
5e18ec73 JR |
490 | |
491 | LTTNG_HIDDEN | |
492 | int mi_lttng_domains_open(struct mi_writer *writer) | |
493 | { | |
494 | return mi_lttng_writer_open_element(writer, config_element_domains); | |
495 | } | |
496 | ||
497 | LTTNG_HIDDEN | |
498 | int mi_lttng_domain(struct mi_writer *writer, | |
499 | struct lttng_domain *domain, int is_open) | |
500 | { | |
501 | int ret = 0; | |
502 | const char *str_domain; | |
503 | const char *str_buffer; | |
504 | ||
505 | assert(domain); | |
506 | ||
507 | /* Open domain element */ | |
508 | ret = mi_lttng_writer_open_element(writer, config_element_domain); | |
509 | if (ret) { | |
510 | goto end; | |
511 | } | |
512 | ||
513 | /* Domain Type */ | |
514 | str_domain = mi_lttng_domaintype_string(domain->type); | |
515 | ret = mi_lttng_writer_write_element_string(writer, config_element_type, | |
516 | str_domain); | |
517 | if (ret) { | |
518 | goto end; | |
519 | } | |
520 | ||
521 | /* Buffer Type */ | |
522 | str_buffer= mi_lttng_buffertype_string(domain->buf_type); | |
523 | ret = mi_lttng_writer_write_element_string(writer, | |
524 | config_element_buffer_type, str_buffer); | |
525 | if (ret) { | |
526 | goto end; | |
527 | } | |
528 | ||
529 | /* TODO: attr... not sure how to use the union.... */ | |
530 | ||
531 | if (!is_open) { | |
532 | /* Closing domain element */ | |
533 | ret = mi_lttng_writer_close_element(writer); | |
534 | } | |
535 | ||
536 | end: | |
537 | return ret; | |
538 | ||
539 | } | |
540 | ||
541 | LTTNG_HIDDEN | |
542 | int mi_lttng_channels_open(struct mi_writer *writer) | |
543 | { | |
544 | return mi_lttng_writer_open_element(writer, config_element_channels); | |
545 | } | |
546 | ||
547 | LTTNG_HIDDEN | |
548 | int mi_lttng_channel(struct mi_writer *writer, | |
549 | struct lttng_channel *channel, int is_open) | |
550 | { | |
551 | int ret = 0; | |
552 | ||
553 | assert(channel); | |
554 | ||
555 | /* Opening channel element */ | |
556 | ret = mi_lttng_writer_open_element(writer, config_element_channel); | |
557 | if (ret) { | |
558 | goto end; | |
559 | } | |
560 | ||
561 | /* Name */ | |
562 | ret = mi_lttng_writer_write_element_string(writer, config_element_name, | |
563 | channel->name); | |
564 | if (ret) { | |
565 | goto end; | |
566 | } | |
567 | ||
568 | /* Enabled ? */ | |
569 | ret = mi_lttng_writer_write_element_bool(writer, | |
570 | config_element_enabled, channel->enabled); | |
571 | if (ret) { | |
572 | goto end; | |
573 | } | |
574 | ||
575 | /* Attribute */ | |
576 | ret = mi_lttng_channel_attr(writer, &channel->attr); | |
577 | if (ret) { | |
578 | goto end; | |
579 | } | |
580 | ||
581 | if (!is_open) { | |
582 | /* Closing channel element */ | |
583 | ret = mi_lttng_writer_close_element(writer); | |
584 | if (ret) { | |
585 | goto end; | |
586 | } | |
587 | } | |
588 | end: | |
589 | return ret; | |
590 | } | |
591 | ||
592 | LTTNG_HIDDEN | |
593 | int mi_lttng_channel_attr(struct mi_writer *writer, | |
594 | struct lttng_channel_attr *attr) | |
595 | { | |
596 | int ret = 0; | |
597 | ||
598 | assert(attr); | |
599 | ||
600 | /* Opening Attributes */ | |
601 | ret = mi_lttng_writer_open_element(writer, config_element_attributes); | |
602 | if (ret) { | |
603 | goto end; | |
604 | } | |
605 | ||
606 | /* Overwrite */ | |
607 | ret = mi_lttng_writer_write_element_string(writer, | |
608 | config_element_overwrite_mode, | |
609 | attr->overwrite ? config_overwrite_mode_overwrite : | |
610 | config_overwrite_mode_discard); | |
611 | if (ret) { | |
612 | goto end; | |
613 | } | |
614 | ||
615 | /* Sub buffer size in byte */ | |
616 | ret = mi_lttng_writer_write_element_unsigned_int(writer, | |
617 | config_element_subbuf_size, attr->subbuf_size); | |
618 | if (ret) { | |
619 | goto end; | |
620 | } | |
621 | ||
622 | /* Number of subbuffer (power of two) */ | |
623 | ret = mi_lttng_writer_write_element_unsigned_int(writer, | |
624 | config_element_num_subbuf, | |
625 | attr->num_subbuf); | |
626 | if (ret) { | |
627 | goto end; | |
628 | } | |
629 | ||
630 | /* Switch timer interval in usec */ | |
631 | ret = mi_lttng_writer_write_element_unsigned_int(writer, | |
632 | config_element_switch_timer_interval, | |
633 | attr->switch_timer_interval); | |
634 | if (ret) { | |
635 | goto end; | |
636 | } | |
637 | ||
638 | /* Read timer interval in usec */ | |
639 | ret = mi_lttng_writer_write_element_unsigned_int(writer, | |
640 | config_element_read_timer_interval, | |
641 | attr->read_timer_interval); | |
642 | if (ret) { | |
643 | goto end; | |
644 | } | |
645 | ||
646 | /* Event output */ | |
647 | ret = mi_lttng_writer_write_element_string(writer, | |
648 | config_element_output_type, | |
649 | attr->output == LTTNG_EVENT_SPLICE ? | |
650 | config_output_type_splice : config_output_type_mmap); | |
651 | if (ret) { | |
652 | goto end; | |
653 | } | |
654 | ||
655 | /* Tracefile size in bytes */ | |
656 | ret = mi_lttng_writer_write_element_unsigned_int(writer, | |
657 | config_element_tracefile_size, attr->tracefile_size); | |
658 | if (ret) { | |
659 | goto end; | |
660 | } | |
661 | ||
662 | /* Count of tracefiles */ | |
663 | ret = mi_lttng_writer_write_element_unsigned_int(writer, | |
664 | config_element_tracefile_count, | |
665 | attr->tracefile_count); | |
666 | if (ret) { | |
667 | goto end; | |
668 | } | |
669 | ||
670 | /* Live timer interval in usec*/ | |
671 | ret = mi_lttng_writer_write_element_unsigned_int(writer, | |
672 | config_element_live_timer_interval, | |
673 | attr->live_timer_interval); | |
674 | if (ret) { | |
675 | goto end; | |
676 | } | |
677 | ||
678 | /* Closing attributes */ | |
679 | ret = mi_lttng_writer_close_element(writer); | |
680 | if (ret) { | |
681 | goto end; | |
682 | } | |
683 | end: | |
684 | return ret; | |
685 | ||
686 | } | |
687 | ||
688 | LTTNG_HIDDEN | |
689 | int mi_lttng_event_common_attributes(struct mi_writer *writer, | |
690 | struct lttng_event *event) | |
691 | { | |
692 | int ret; | |
693 | ||
694 | /* Open event element */ | |
695 | ret = mi_lttng_writer_open_element(writer, config_element_event); | |
696 | if (ret) { | |
697 | goto end; | |
698 | } | |
699 | ||
700 | /* event name */ | |
701 | ret = mi_lttng_writer_write_element_string(writer, | |
702 | config_element_name, event->name); | |
703 | if (ret) { | |
704 | goto end; | |
705 | } | |
706 | ||
707 | /* event type */ | |
708 | ret = mi_lttng_writer_write_element_string(writer, | |
709 | config_element_type, mi_lttng_eventtype_string(event->type)); | |
710 | if (ret) { | |
711 | goto end; | |
712 | } | |
713 | ||
714 | /* is event enabled */ | |
715 | ret = mi_lttng_writer_write_element_bool(writer, | |
716 | config_element_enabled, event->enabled); | |
717 | if (ret) { | |
718 | goto end; | |
719 | } | |
720 | ||
721 | /* event filter enabled? */ | |
722 | ret = mi_lttng_writer_write_element_bool(writer, | |
723 | config_element_filter, event->filter); | |
724 | ||
725 | end: | |
726 | return ret; | |
727 | } | |
728 | ||
729 | LTTNG_HIDDEN | |
730 | int mi_lttng_event_tracepoint_loglevel(struct mi_writer *writer, | |
731 | struct lttng_event *event) | |
732 | { | |
733 | int ret; | |
734 | ||
735 | /* event loglevel */ | |
736 | ret = mi_lttng_writer_write_element_string(writer, | |
737 | config_element_loglevel, mi_lttng_loglevel_string(event->loglevel)); | |
738 | if (ret) { | |
739 | goto end; | |
740 | } | |
741 | ||
742 | ret = mi_lttng_writer_write_element_string(writer, | |
743 | config_element_loglevel_type, | |
744 | mi_lttng_logleveltype_string(event->loglevel_type)); | |
745 | if (ret) { | |
746 | goto end; | |
747 | } | |
748 | ||
749 | /* event exclusion filter */ | |
750 | ret = mi_lttng_writer_write_element_bool(writer, | |
751 | config_element_exclusion, event->exclusion); | |
752 | if (ret) { | |
753 | goto end; | |
754 | } | |
755 | ||
756 | end: | |
757 | return ret; | |
758 | } | |
759 | ||
760 | LTTNG_HIDDEN | |
761 | int mi_lttng_event_tracepoint_no_loglevel(struct mi_writer *writer, | |
762 | struct lttng_event *event) | |
763 | { | |
764 | /* event exclusion filter */ | |
765 | return mi_lttng_writer_write_element_bool(writer, | |
766 | config_element_exclusion, event->exclusion); | |
767 | } | |
768 | ||
769 | LTTNG_HIDDEN | |
770 | int mi_lttng_event_function_probe(struct mi_writer *writer, | |
771 | struct lttng_event *event) | |
772 | { | |
773 | int ret; | |
774 | ||
775 | if (event->attr.probe.addr != 0) { | |
776 | /* event probe address */ | |
777 | ret = mi_lttng_writer_write_element_unsigned_int(writer, | |
778 | config_element_address, event->attr.probe.addr); | |
779 | if (ret) { | |
780 | goto end; | |
781 | } | |
782 | } else { | |
783 | /* event probe offset */ | |
784 | ret = mi_lttng_writer_write_element_unsigned_int(writer, | |
785 | config_element_offset, event->attr.probe.offset); | |
786 | if (ret) { | |
787 | goto end; | |
788 | } | |
789 | ||
790 | /* event probe symbol_name */ | |
791 | ret = mi_lttng_writer_write_element_string(writer, | |
792 | config_element_symbol_name, event->attr.probe.symbol_name); | |
793 | if (ret) { | |
794 | goto end; | |
795 | } | |
796 | } | |
797 | end: | |
798 | return ret; | |
799 | } | |
800 | ||
801 | LTTNG_HIDDEN | |
802 | int mi_lttng_event_function_entry(struct mi_writer *writer, | |
803 | struct lttng_event *event) | |
804 | { | |
805 | /* event probe symbol_name */ | |
806 | return mi_lttng_writer_write_element_string(writer, | |
807 | config_element_symbol_name, event->attr.ftrace.symbol_name); | |
808 | } | |
809 | ||
810 | LTTNG_HIDDEN | |
811 | int mi_lttng_events_open(struct mi_writer *writer) | |
812 | { | |
813 | return mi_lttng_writer_open_element(writer, config_element_events); | |
814 | } | |
815 | ||
816 | LTTNG_HIDDEN | |
817 | int mi_lttng_event(struct mi_writer *writer, | |
818 | struct lttng_event *event, int is_open) | |
819 | { | |
820 | int ret; | |
821 | ||
822 | ret = mi_lttng_event_common_attributes(writer, event); | |
823 | if (ret) { | |
824 | goto end; | |
825 | } | |
826 | ||
827 | switch (event->type) { | |
828 | case LTTNG_EVENT_ALL: | |
829 | /* We should never have "all" events in list. */ | |
830 | assert(0); | |
831 | break; | |
832 | case LTTNG_EVENT_TRACEPOINT: | |
833 | { | |
834 | if (event->loglevel != -1) { | |
835 | ret = mi_lttng_event_tracepoint_loglevel(writer, event); | |
836 | } else { | |
837 | ret = mi_lttng_event_tracepoint_no_loglevel(writer, event); | |
838 | } | |
839 | break; | |
840 | } | |
841 | case LTTNG_EVENT_PROBE: | |
842 | ret = mi_lttng_event_function_probe(writer, event); | |
843 | break; | |
844 | case LTTNG_EVENT_FUNCTION_ENTRY: | |
845 | ret = mi_lttng_event_function_entry(writer, event); | |
846 | break; | |
847 | default: | |
848 | break; | |
849 | } | |
850 | ||
851 | if (!is_open) { | |
852 | ret = mi_lttng_writer_close_element(writer); | |
853 | } | |
854 | ||
855 | end: | |
856 | return ret; | |
857 | } | |
858 | ||
859 | LTTNG_HIDDEN | |
860 | int mi_lttng_pids_open(struct mi_writer *writer) | |
861 | { | |
862 | return mi_lttng_writer_open_element(writer, mi_lttng_element_pids); | |
863 | } | |
864 | ||
865 | LTTNG_HIDDEN | |
866 | int mi_lttng_pid(struct mi_writer *writer, pid_t pid , const char *cmdline, | |
867 | int is_open) | |
868 | { | |
869 | int ret; | |
870 | ||
871 | /* Open element pid */ | |
872 | ret = mi_lttng_writer_open_element(writer, mi_lttng_element_pid); | |
873 | if (ret) { | |
874 | goto end; | |
875 | } | |
876 | ||
877 | /* Writing pid number */ | |
878 | ret = mi_lttng_writer_write_element_signed_int(writer, | |
879 | mi_lttng_element_pid_id, (int)pid); | |
880 | if (ret) { | |
881 | goto end; | |
882 | } | |
883 | ||
884 | /* Writing name of the process */ | |
885 | ret = mi_lttng_writer_write_element_string(writer, config_element_name, | |
886 | cmdline); | |
887 | if (ret) { | |
888 | goto end; | |
889 | } | |
890 | ||
891 | if (!is_open) { | |
892 | /* Closing Pid */ | |
893 | ret = mi_lttng_writer_close_element(writer); | |
894 | } | |
895 | ||
896 | end: | |
897 | return ret; | |
898 | } | |
899 | ||
900 | LTTNG_HIDDEN | |
901 | int mi_lttng_event_fields_open(struct mi_writer *writer) | |
902 | { | |
903 | return mi_lttng_writer_open_element(writer, mi_lttng_element_event_fields); | |
904 | } | |
905 | ||
906 | LTTNG_HIDDEN | |
907 | int mi_lttng_event_field(struct mi_writer *writer, | |
908 | struct lttng_event_field *field) | |
909 | { | |
910 | int ret; | |
911 | ||
912 | if (!field->field_name[0]) { | |
913 | /* To Review: not sure if legal david ? | |
914 | * how should this be handle ? | |
915 | */ | |
916 | ret = 0; | |
917 | goto end; | |
918 | } | |
919 | ||
920 | /* Open field */ | |
921 | ret = mi_lttng_writer_open_element(writer, mi_lttng_element_event_field); | |
922 | if (ret) { | |
923 | goto end; | |
924 | } | |
925 | ||
926 | if (!field->field_name[0]) { | |
927 | goto close; | |
928 | } | |
929 | ||
930 | /* Name */ | |
931 | ret = mi_lttng_writer_write_element_string(writer, config_element_name, | |
932 | field->field_name); | |
933 | if (ret) { | |
934 | goto end; | |
935 | } | |
936 | ||
937 | /* Type */ | |
938 | ret = mi_lttng_writer_write_element_string(writer, config_element_type, | |
939 | mi_lttng_eventfieldtype_string(field->type)); | |
940 | if (ret) { | |
941 | goto end; | |
942 | } | |
943 | ||
944 | /* nowrite */ | |
945 | ret = mi_lttng_writer_write_element_signed_int(writer, | |
946 | mi_lttng_element_nowrite, field->nowrite); | |
947 | if (ret) { | |
948 | goto end; | |
949 | } | |
950 | ||
951 | close: | |
952 | /* Close field element */ | |
953 | ret = mi_lttng_writer_close_element(writer); | |
954 | ||
955 | end: | |
956 | return ret; | |
957 | } |