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"; | |
1734c658 JRJ |
30 | const char * const mi_lttng_element_command_save = "save"; |
31 | const char * const mi_lttng_element_command_load = "load"; | |
c7e35b03 JR |
32 | const char * const mi_lttng_element_command_name = "name"; |
33 | const char * const mi_lttng_element_command_output = "output"; | |
1734c658 | 34 | const char * const mi_lttng_element_command_success = "success"; |
c7e35b03 | 35 | |
1734c658 | 36 | /* Strings related to version command */ |
c7e35b03 JR |
37 | const char * const mi_lttng_element_version = "version"; |
38 | const char * const mi_lttng_element_version_str = "string"; | |
39 | const char * const mi_lttng_element_version_web = "url"; | |
40 | const char * const mi_lttng_element_version_major = "major"; | |
41 | const char * const mi_lttng_element_version_minor = "minor"; | |
314d5222 | 42 | const char * const mi_lttng_element_version_commit = "commit"; |
c7e35b03 JR |
43 | const char * const mi_lttng_element_version_license = "license"; |
44 | const char * const mi_lttng_element_version_patch_level = "patchLevel"; | |
45 | const char * const mi_lttng_element_version_description = "description"; | |
46 | ||
5e18ec73 JR |
47 | /* Strings related to pid */ |
48 | const char * const mi_lttng_element_pids = "pids"; | |
49 | const char * const mi_lttng_element_pid = "pid"; | |
50 | const char * const mi_lttng_element_pid_id = "id"; | |
51 | ||
1734c658 JRJ |
52 | /* Strings related to save command */ |
53 | const char * const mi_lttng_element_save = "save"; | |
54 | ||
55 | /* Strings related to load command */ | |
56 | const char * const mi_lttng_element_load = "load"; | |
57 | ||
5e18ec73 JR |
58 | /* String related to a lttng_event_field */ |
59 | const char * const mi_lttng_element_event_field = "event_field"; | |
60 | const char * const mi_lttng_element_event_fields = "event_fields"; | |
61 | ||
62 | /* General elements of mi_lttng */ | |
63 | const char * const mi_lttng_element_type_other = "OTHER"; | |
64 | const char * const mi_lttng_element_type_integer = "INTEGER"; | |
65 | const char * const mi_lttng_element_type_enum = "ENUM"; | |
66 | const char * const mi_lttng_element_type_float = "FLOAT"; | |
67 | const char * const mi_lttng_element_type_string = "STRING"; | |
68 | const char * const mi_lttng_element_nowrite = "nowrite"; | |
69 | ||
70 | /* String related to loglevel */ | |
71 | const char * const mi_lttng_loglevel_str_alert = "TRACE_ALERT"; | |
72 | const char * const mi_lttng_loglevel_str_crit = "TRACE_CRIT"; | |
73 | const char * const mi_lttng_loglevel_str_debug = "TRACE_DEBUG"; | |
74 | const char * const mi_lttng_loglevel_str_debug_function = "TRACE_DEBUG_FUNCTION"; | |
75 | const char * const mi_lttng_loglevel_str_debug_line = "TRACE_DEBUG_LINE"; | |
76 | const char * const mi_lttng_loglevel_str_debug_module = "TRACE_DEBUG_MODULE"; | |
77 | const char * const mi_lttng_loglevel_str_debug_process = "TRACE_DEBUG_PROCESS"; | |
78 | const char * const mi_lttng_loglevel_str_debug_program = "TRACE_DEBUG_PROGRAM"; | |
79 | const char * const mi_lttng_loglevel_str_debug_system = "TRACE_DEBUG_SYSTEM"; | |
80 | const char * const mi_lttng_loglevel_str_debug_unit = "TRACE_DEBUG_UNIT"; | |
81 | const char * const mi_lttng_loglevel_str_emerg = "TRACE_EMERG"; | |
82 | const char * const mi_lttng_loglevel_str_err = "TRACE_ERR"; | |
83 | const char * const mi_lttng_loglevel_str_info = "TRACE_INFO"; | |
84 | const char * const mi_lttng_loglevel_str_notice = "TRACE_NOTICE"; | |
85 | const char * const mi_lttng_loglevel_str_unknown = "UNKNOWN"; | |
86 | const char * const mi_lttng_loglevel_str_warning = "TRACE_WARNING"; | |
87 | ||
1734c658 | 88 | /* String related to loglevel type */ |
5e18ec73 JR |
89 | const char * const mi_lttng_loglevel_type_all = "ALL"; |
90 | const char * const mi_lttng_loglevel_type_range = "RANGE"; | |
91 | const char * const mi_lttng_loglevel_type_single = "SINGLE"; | |
92 | const char * const mi_lttng_loglevel_type_unknown = "UNKNOWN"; | |
93 | ||
94 | const char * const mi_lttng_element_empty = ""; | |
95 | ||
96 | const char *mi_lttng_loglevel_string(int value) | |
97 | { | |
98 | switch (value) { | |
99 | case -1: | |
100 | return mi_lttng_element_empty; | |
101 | case LTTNG_LOGLEVEL_EMERG: | |
102 | return mi_lttng_loglevel_str_emerg; | |
103 | case LTTNG_LOGLEVEL_ALERT: | |
104 | return mi_lttng_loglevel_str_alert; | |
105 | case LTTNG_LOGLEVEL_CRIT: | |
106 | return mi_lttng_loglevel_str_crit; | |
107 | case LTTNG_LOGLEVEL_ERR: | |
108 | return mi_lttng_loglevel_str_err; | |
109 | case LTTNG_LOGLEVEL_WARNING: | |
110 | return mi_lttng_loglevel_str_warning; | |
111 | case LTTNG_LOGLEVEL_NOTICE: | |
112 | return mi_lttng_loglevel_str_notice; | |
113 | case LTTNG_LOGLEVEL_INFO: | |
114 | return mi_lttng_loglevel_str_info; | |
115 | case LTTNG_LOGLEVEL_DEBUG_SYSTEM: | |
116 | return mi_lttng_loglevel_str_debug_system; | |
117 | case LTTNG_LOGLEVEL_DEBUG_PROGRAM: | |
118 | return mi_lttng_loglevel_str_debug_program; | |
119 | case LTTNG_LOGLEVEL_DEBUG_PROCESS: | |
120 | return mi_lttng_loglevel_str_debug_process; | |
121 | case LTTNG_LOGLEVEL_DEBUG_MODULE: | |
122 | return mi_lttng_loglevel_str_debug_module; | |
123 | case LTTNG_LOGLEVEL_DEBUG_UNIT: | |
124 | return mi_lttng_loglevel_str_debug_unit; | |
125 | case LTTNG_LOGLEVEL_DEBUG_FUNCTION: | |
126 | return mi_lttng_loglevel_str_debug_function; | |
127 | case LTTNG_LOGLEVEL_DEBUG_LINE: | |
128 | return mi_lttng_loglevel_str_debug_line; | |
129 | case LTTNG_LOGLEVEL_DEBUG: | |
130 | return mi_lttng_loglevel_str_debug; | |
131 | default: | |
132 | return mi_lttng_loglevel_str_unknown; | |
133 | } | |
134 | } | |
135 | ||
136 | const char *mi_lttng_logleveltype_string(enum lttng_loglevel_type value) | |
137 | { | |
138 | switch (value) { | |
139 | case LTTNG_EVENT_LOGLEVEL_ALL: | |
140 | return mi_lttng_loglevel_type_all; | |
141 | case LTTNG_EVENT_LOGLEVEL_RANGE: | |
142 | return mi_lttng_loglevel_type_range; | |
143 | case LTTNG_EVENT_LOGLEVEL_SINGLE: | |
144 | return mi_lttng_loglevel_type_single; | |
145 | default: | |
146 | return mi_lttng_loglevel_type_unknown; | |
147 | } | |
148 | } | |
149 | ||
150 | const char *mi_lttng_eventtype_string(enum lttng_event_type value) | |
151 | { | |
152 | switch (value) { | |
153 | case LTTNG_EVENT_ALL: | |
154 | return config_event_type_all; | |
155 | case LTTNG_EVENT_TRACEPOINT: | |
156 | return config_event_type_tracepoint; | |
157 | case LTTNG_EVENT_PROBE: | |
158 | return config_event_type_probe; | |
159 | case LTTNG_EVENT_FUNCTION: | |
160 | return config_event_type_function; | |
161 | case LTTNG_EVENT_FUNCTION_ENTRY: | |
162 | return config_event_type_function_entry; | |
163 | case LTTNG_EVENT_SYSCALL: | |
164 | return config_event_type_syscall; | |
165 | case LTTNG_EVENT_NOOP: | |
166 | return config_event_type_noop; | |
167 | default: | |
168 | return mi_lttng_element_empty; | |
169 | } | |
170 | } | |
171 | ||
172 | const char *mi_lttng_eventfieldtype_string(enum lttng_event_field_type val) | |
173 | { | |
174 | switch (val) { | |
175 | case(LTTNG_EVENT_FIELD_INTEGER): | |
176 | return mi_lttng_element_type_integer; | |
177 | case(LTTNG_EVENT_FIELD_ENUM): | |
178 | return mi_lttng_element_type_enum; | |
179 | case(LTTNG_EVENT_FIELD_FLOAT): | |
180 | return mi_lttng_element_type_float; | |
181 | case(LTTNG_EVENT_FIELD_STRING): | |
182 | return mi_lttng_element_type_string; | |
183 | default: | |
184 | return mi_lttng_element_type_other; | |
185 | } | |
186 | } | |
187 | ||
188 | const char *mi_lttng_domaintype_string(enum lttng_domain_type value) | |
189 | { | |
190 | /* Note: This is a *duplicate* of get_domain_str from bin/lttng/utils.c */ | |
191 | switch (value) { | |
192 | case LTTNG_DOMAIN_KERNEL: | |
193 | return config_domain_type_kernel; | |
194 | case LTTNG_DOMAIN_UST: | |
195 | return config_domain_type_ust; | |
196 | case LTTNG_DOMAIN_JUL: | |
197 | return config_domain_type_jul; | |
198 | default: | |
199 | /* Should not have an unknown domain */ | |
200 | assert(0); | |
201 | } | |
202 | } | |
203 | ||
204 | const char *mi_lttng_buffertype_string(enum lttng_buffer_type value) | |
205 | { | |
206 | switch (value) { | |
207 | case LTTNG_BUFFER_PER_PID: | |
208 | return config_buffer_type_per_pid; | |
209 | case LTTNG_BUFFER_PER_UID: | |
210 | return config_buffer_type_per_uid; | |
211 | case LTTNG_BUFFER_GLOBAL: | |
212 | return config_buffer_type_global; | |
213 | default: | |
214 | /* Should not have an unknow buffer type */ | |
215 | assert(0); | |
216 | } | |
217 | } | |
218 | ||
c7e35b03 JR |
219 | LTTNG_HIDDEN |
220 | struct mi_writer *mi_lttng_writer_create(int fd_output, int mi_output_type) | |
221 | { | |
222 | struct mi_writer *mi_writer; | |
223 | ||
224 | mi_writer = zmalloc(sizeof(struct mi_writer)); | |
225 | if (!mi_writer) { | |
226 | PERROR("zmalloc mi_writer_create"); | |
227 | goto end; | |
228 | } | |
229 | if (mi_output_type == LTTNG_MI_XML) { | |
230 | mi_writer->writer = config_writer_create(fd_output); | |
231 | if (!mi_writer->writer) { | |
232 | goto err_destroy; | |
233 | } | |
234 | mi_writer->type = LTTNG_MI_XML; | |
235 | } else { | |
236 | goto err_destroy; | |
237 | } | |
238 | ||
239 | end: | |
240 | return mi_writer; | |
241 | ||
242 | err_destroy: | |
243 | free(mi_writer); | |
244 | return NULL; | |
245 | } | |
246 | ||
247 | LTTNG_HIDDEN | |
248 | int mi_lttng_writer_destroy(struct mi_writer *writer) | |
249 | { | |
250 | int ret; | |
251 | ||
252 | if (!writer) { | |
253 | ret = -EINVAL; | |
254 | goto end; | |
255 | } | |
256 | ||
257 | ret = config_writer_destroy(writer->writer); | |
258 | if (ret < 0) { | |
259 | goto end; | |
260 | } | |
261 | ||
262 | free(writer); | |
263 | end: | |
264 | return ret; | |
265 | } | |
266 | ||
267 | LTTNG_HIDDEN | |
268 | int mi_lttng_writer_command_open(struct mi_writer *writer, const char *command) | |
269 | { | |
270 | int ret; | |
271 | ||
272 | ret = mi_lttng_writer_open_element(writer, mi_lttng_element_command); | |
273 | if (ret) { | |
274 | goto end; | |
275 | } | |
276 | ret = mi_lttng_writer_write_element_string(writer, | |
277 | mi_lttng_element_command_name, command); | |
278 | end: | |
279 | return ret; | |
280 | } | |
281 | ||
282 | LTTNG_HIDDEN | |
283 | int mi_lttng_writer_command_close(struct mi_writer *writer) | |
284 | { | |
285 | return mi_lttng_writer_close_element(writer); | |
286 | } | |
287 | ||
288 | LTTNG_HIDDEN | |
289 | int mi_lttng_writer_open_element(struct mi_writer *writer, | |
290 | const char *element_name) | |
291 | { | |
292 | return config_writer_open_element(writer->writer, element_name); | |
293 | } | |
294 | ||
295 | LTTNG_HIDDEN | |
296 | int mi_lttng_writer_close_element(struct mi_writer *writer) | |
297 | { | |
298 | return config_writer_close_element(writer->writer); | |
299 | } | |
300 | ||
5e18ec73 JR |
301 | LTTNG_HIDDEN |
302 | int mi_lttng_close_multi_element(struct mi_writer *writer, | |
303 | unsigned int nb_element) | |
304 | { | |
305 | int ret, i; | |
306 | ||
307 | if (nb_element < 1) { | |
308 | ret = 0; | |
309 | goto end; | |
310 | } | |
311 | for (i = 0; i < nb_element; i++) { | |
312 | ret = mi_lttng_writer_close_element(writer); | |
313 | if (ret) { | |
314 | goto end; | |
315 | } | |
316 | } | |
317 | end: | |
318 | return ret; | |
319 | } | |
320 | ||
c7e35b03 JR |
321 | LTTNG_HIDDEN |
322 | int mi_lttng_writer_write_element_unsigned_int(struct mi_writer *writer, | |
323 | const char *element_name, uint64_t value) | |
324 | { | |
325 | return config_writer_write_element_unsigned_int(writer->writer, | |
326 | element_name, value); | |
327 | } | |
328 | ||
329 | LTTNG_HIDDEN | |
330 | int mi_lttng_writer_write_element_signed_int(struct mi_writer *writer, | |
331 | const char *element_name, int64_t value) | |
332 | { | |
333 | return config_writer_write_element_signed_int(writer->writer, | |
334 | element_name, value); | |
335 | } | |
336 | ||
337 | LTTNG_HIDDEN | |
338 | int mi_lttng_writer_write_element_bool(struct mi_writer *writer, | |
339 | const char *element_name, int value) | |
340 | { | |
341 | return config_writer_write_element_bool(writer->writer, | |
342 | element_name, value); | |
343 | } | |
344 | ||
345 | LTTNG_HIDDEN | |
346 | int mi_lttng_writer_write_element_string(struct mi_writer *writer, | |
347 | const char *element_name, const char *value) | |
348 | { | |
349 | return config_writer_write_element_string(writer->writer, | |
350 | element_name, value); | |
351 | } | |
352 | ||
353 | LTTNG_HIDDEN | |
354 | int mi_lttng_version(struct mi_writer *writer, struct mi_lttng_version *version, | |
355 | const char *lttng_description, const char *lttng_license) | |
356 | { | |
357 | int ret; | |
358 | ||
359 | /* Open version */ | |
360 | ret = mi_lttng_writer_open_element(writer, mi_lttng_element_version); | |
361 | if (ret) { | |
362 | goto end; | |
363 | } | |
364 | ||
365 | /* Version string (contain info like rc etc.) */ | |
366 | ret = mi_lttng_writer_write_element_string(writer, | |
367 | mi_lttng_element_version_str, VERSION); | |
368 | if (ret) { | |
369 | goto end; | |
370 | } | |
371 | ||
372 | /* Major version number */ | |
373 | ret = mi_lttng_writer_write_element_unsigned_int(writer, | |
374 | mi_lttng_element_version_major, version->version_major); | |
375 | if (ret) { | |
376 | goto end; | |
377 | } | |
378 | ||
379 | /* Minor version number */ | |
380 | ret = mi_lttng_writer_write_element_unsigned_int(writer, | |
381 | mi_lttng_element_version_minor, version->version_minor); | |
382 | if (ret) { | |
383 | goto end; | |
384 | } | |
385 | ||
314d5222 JRJ |
386 | /* Commit version number */ |
387 | ret = mi_lttng_writer_write_element_string(writer, | |
388 | mi_lttng_element_version_commit, version->version_commit); | |
389 | if (ret) { | |
390 | goto end; | |
391 | } | |
392 | ||
c7e35b03 JR |
393 | /* Patch number */ |
394 | ret = mi_lttng_writer_write_element_unsigned_int(writer, | |
395 | mi_lttng_element_version_patch_level, version->version_patchlevel); | |
396 | if (ret) { | |
397 | goto end; | |
398 | } | |
399 | ||
400 | /* Name of the version */ | |
401 | ret = mi_lttng_writer_write_element_string(writer, | |
402 | config_element_name, version->version_name); | |
403 | if (ret) { | |
404 | goto end; | |
405 | } | |
406 | ||
407 | /* Description mostly related to beer... */ | |
408 | ret = mi_lttng_writer_write_element_string(writer, | |
409 | mi_lttng_element_version_description, lttng_description); | |
410 | if (ret) { | |
411 | goto end; | |
412 | } | |
413 | ||
414 | /* url */ | |
415 | ret = mi_lttng_writer_write_element_string(writer, | |
416 | mi_lttng_element_version_web, version->package_url); | |
417 | if (ret) { | |
418 | goto end; | |
419 | } | |
420 | ||
421 | /* License: free as in free beer...no...*speech* */ | |
422 | ret = mi_lttng_writer_write_element_string(writer, | |
423 | mi_lttng_element_version_license, lttng_license); | |
424 | if (ret) { | |
425 | goto end; | |
426 | } | |
427 | ||
428 | /* Close version element */ | |
429 | ret = mi_lttng_writer_close_element(writer); | |
430 | ||
431 | end: | |
432 | return ret; | |
433 | } | |
434 | ||
5e18ec73 JR |
435 | LTTNG_HIDDEN |
436 | int mi_lttng_sessions_open(struct mi_writer *writer) | |
437 | { | |
438 | return mi_lttng_writer_open_element(writer, config_element_sessions); | |
439 | } | |
440 | ||
c7e35b03 JR |
441 | LTTNG_HIDDEN |
442 | int mi_lttng_session(struct mi_writer *writer, | |
443 | struct lttng_session *session, int is_open) | |
444 | { | |
445 | int ret; | |
446 | ||
5e18ec73 JR |
447 | assert(session); |
448 | ||
449 | /* Open sessions element */ | |
c7e35b03 JR |
450 | ret = mi_lttng_writer_open_element(writer, |
451 | config_element_session); | |
452 | if (ret) { | |
453 | goto end; | |
454 | } | |
455 | ||
456 | /* Name of the session */ | |
457 | ret = mi_lttng_writer_write_element_string(writer, | |
458 | config_element_name, session->name); | |
459 | if (ret) { | |
460 | goto end; | |
461 | } | |
462 | ||
5e18ec73 | 463 | /* Path */ |
c7e35b03 JR |
464 | ret = mi_lttng_writer_write_element_string(writer, |
465 | config_element_path, session->path); | |
466 | if (ret) { | |
467 | goto end; | |
468 | } | |
469 | ||
5e18ec73 JR |
470 | /* Enabled ? */ |
471 | ret = mi_lttng_writer_write_element_bool(writer, | |
c7e35b03 JR |
472 | config_element_enabled, session->enabled); |
473 | if (ret) { | |
474 | goto end; | |
475 | } | |
476 | ||
5e18ec73 | 477 | /* Snapshot mode */ |
c7e35b03 JR |
478 | ret = mi_lttng_writer_write_element_unsigned_int(writer, |
479 | config_element_snapshot_mode, session->snapshot_mode); | |
480 | if (ret) { | |
481 | goto end; | |
482 | } | |
483 | ||
5e18ec73 | 484 | /* Live timer interval in usec */ |
c7e35b03 JR |
485 | ret = mi_lttng_writer_write_element_unsigned_int(writer, |
486 | config_element_live_timer_interval, | |
487 | session->live_timer_interval); | |
488 | if (ret) { | |
489 | goto end; | |
490 | } | |
491 | ||
492 | if (!is_open) { | |
493 | /* Closing session element */ | |
494 | ret = mi_lttng_writer_close_element(writer); | |
495 | } | |
496 | end: | |
497 | return ret; | |
498 | ||
499 | } | |
5e18ec73 JR |
500 | |
501 | LTTNG_HIDDEN | |
502 | int mi_lttng_domains_open(struct mi_writer *writer) | |
503 | { | |
504 | return mi_lttng_writer_open_element(writer, config_element_domains); | |
505 | } | |
506 | ||
507 | LTTNG_HIDDEN | |
508 | int mi_lttng_domain(struct mi_writer *writer, | |
509 | struct lttng_domain *domain, int is_open) | |
510 | { | |
511 | int ret = 0; | |
512 | const char *str_domain; | |
513 | const char *str_buffer; | |
514 | ||
515 | assert(domain); | |
516 | ||
517 | /* Open domain element */ | |
518 | ret = mi_lttng_writer_open_element(writer, config_element_domain); | |
519 | if (ret) { | |
520 | goto end; | |
521 | } | |
522 | ||
523 | /* Domain Type */ | |
524 | str_domain = mi_lttng_domaintype_string(domain->type); | |
525 | ret = mi_lttng_writer_write_element_string(writer, config_element_type, | |
526 | str_domain); | |
527 | if (ret) { | |
528 | goto end; | |
529 | } | |
530 | ||
531 | /* Buffer Type */ | |
532 | str_buffer= mi_lttng_buffertype_string(domain->buf_type); | |
533 | ret = mi_lttng_writer_write_element_string(writer, | |
534 | config_element_buffer_type, str_buffer); | |
535 | if (ret) { | |
536 | goto end; | |
537 | } | |
538 | ||
539 | /* TODO: attr... not sure how to use the union.... */ | |
540 | ||
541 | if (!is_open) { | |
542 | /* Closing domain element */ | |
543 | ret = mi_lttng_writer_close_element(writer); | |
544 | } | |
545 | ||
546 | end: | |
547 | return ret; | |
548 | ||
549 | } | |
550 | ||
551 | LTTNG_HIDDEN | |
552 | int mi_lttng_channels_open(struct mi_writer *writer) | |
553 | { | |
554 | return mi_lttng_writer_open_element(writer, config_element_channels); | |
555 | } | |
556 | ||
557 | LTTNG_HIDDEN | |
558 | int mi_lttng_channel(struct mi_writer *writer, | |
559 | struct lttng_channel *channel, int is_open) | |
560 | { | |
561 | int ret = 0; | |
562 | ||
563 | assert(channel); | |
564 | ||
565 | /* Opening channel element */ | |
566 | ret = mi_lttng_writer_open_element(writer, config_element_channel); | |
567 | if (ret) { | |
568 | goto end; | |
569 | } | |
570 | ||
571 | /* Name */ | |
572 | ret = mi_lttng_writer_write_element_string(writer, config_element_name, | |
573 | channel->name); | |
574 | if (ret) { | |
575 | goto end; | |
576 | } | |
577 | ||
578 | /* Enabled ? */ | |
579 | ret = mi_lttng_writer_write_element_bool(writer, | |
580 | config_element_enabled, channel->enabled); | |
581 | if (ret) { | |
582 | goto end; | |
583 | } | |
584 | ||
585 | /* Attribute */ | |
586 | ret = mi_lttng_channel_attr(writer, &channel->attr); | |
587 | if (ret) { | |
588 | goto end; | |
589 | } | |
590 | ||
591 | if (!is_open) { | |
592 | /* Closing channel element */ | |
593 | ret = mi_lttng_writer_close_element(writer); | |
594 | if (ret) { | |
595 | goto end; | |
596 | } | |
597 | } | |
598 | end: | |
599 | return ret; | |
600 | } | |
601 | ||
602 | LTTNG_HIDDEN | |
603 | int mi_lttng_channel_attr(struct mi_writer *writer, | |
604 | struct lttng_channel_attr *attr) | |
605 | { | |
606 | int ret = 0; | |
607 | ||
608 | assert(attr); | |
609 | ||
610 | /* Opening Attributes */ | |
611 | ret = mi_lttng_writer_open_element(writer, config_element_attributes); | |
612 | if (ret) { | |
613 | goto end; | |
614 | } | |
615 | ||
616 | /* Overwrite */ | |
617 | ret = mi_lttng_writer_write_element_string(writer, | |
618 | config_element_overwrite_mode, | |
619 | attr->overwrite ? config_overwrite_mode_overwrite : | |
620 | config_overwrite_mode_discard); | |
621 | if (ret) { | |
622 | goto end; | |
623 | } | |
624 | ||
625 | /* Sub buffer size in byte */ | |
626 | ret = mi_lttng_writer_write_element_unsigned_int(writer, | |
627 | config_element_subbuf_size, attr->subbuf_size); | |
628 | if (ret) { | |
629 | goto end; | |
630 | } | |
631 | ||
632 | /* Number of subbuffer (power of two) */ | |
633 | ret = mi_lttng_writer_write_element_unsigned_int(writer, | |
634 | config_element_num_subbuf, | |
635 | attr->num_subbuf); | |
636 | if (ret) { | |
637 | goto end; | |
638 | } | |
639 | ||
640 | /* Switch timer interval in usec */ | |
641 | ret = mi_lttng_writer_write_element_unsigned_int(writer, | |
642 | config_element_switch_timer_interval, | |
643 | attr->switch_timer_interval); | |
644 | if (ret) { | |
645 | goto end; | |
646 | } | |
647 | ||
648 | /* Read timer interval in usec */ | |
649 | ret = mi_lttng_writer_write_element_unsigned_int(writer, | |
650 | config_element_read_timer_interval, | |
651 | attr->read_timer_interval); | |
652 | if (ret) { | |
653 | goto end; | |
654 | } | |
655 | ||
656 | /* Event output */ | |
657 | ret = mi_lttng_writer_write_element_string(writer, | |
658 | config_element_output_type, | |
659 | attr->output == LTTNG_EVENT_SPLICE ? | |
660 | config_output_type_splice : config_output_type_mmap); | |
661 | if (ret) { | |
662 | goto end; | |
663 | } | |
664 | ||
665 | /* Tracefile size in bytes */ | |
666 | ret = mi_lttng_writer_write_element_unsigned_int(writer, | |
667 | config_element_tracefile_size, attr->tracefile_size); | |
668 | if (ret) { | |
669 | goto end; | |
670 | } | |
671 | ||
672 | /* Count of tracefiles */ | |
673 | ret = mi_lttng_writer_write_element_unsigned_int(writer, | |
674 | config_element_tracefile_count, | |
675 | attr->tracefile_count); | |
676 | if (ret) { | |
677 | goto end; | |
678 | } | |
679 | ||
680 | /* Live timer interval in usec*/ | |
681 | ret = mi_lttng_writer_write_element_unsigned_int(writer, | |
682 | config_element_live_timer_interval, | |
683 | attr->live_timer_interval); | |
684 | if (ret) { | |
685 | goto end; | |
686 | } | |
687 | ||
688 | /* Closing attributes */ | |
689 | ret = mi_lttng_writer_close_element(writer); | |
690 | if (ret) { | |
691 | goto end; | |
692 | } | |
693 | end: | |
694 | return ret; | |
695 | ||
696 | } | |
697 | ||
698 | LTTNG_HIDDEN | |
699 | int mi_lttng_event_common_attributes(struct mi_writer *writer, | |
700 | struct lttng_event *event) | |
701 | { | |
702 | int ret; | |
703 | ||
704 | /* Open event element */ | |
705 | ret = mi_lttng_writer_open_element(writer, config_element_event); | |
706 | if (ret) { | |
707 | goto end; | |
708 | } | |
709 | ||
710 | /* event name */ | |
711 | ret = mi_lttng_writer_write_element_string(writer, | |
712 | config_element_name, event->name); | |
713 | if (ret) { | |
714 | goto end; | |
715 | } | |
716 | ||
717 | /* event type */ | |
718 | ret = mi_lttng_writer_write_element_string(writer, | |
719 | config_element_type, mi_lttng_eventtype_string(event->type)); | |
720 | if (ret) { | |
721 | goto end; | |
722 | } | |
723 | ||
724 | /* is event enabled */ | |
725 | ret = mi_lttng_writer_write_element_bool(writer, | |
726 | config_element_enabled, event->enabled); | |
727 | if (ret) { | |
728 | goto end; | |
729 | } | |
730 | ||
731 | /* event filter enabled? */ | |
732 | ret = mi_lttng_writer_write_element_bool(writer, | |
733 | config_element_filter, event->filter); | |
734 | ||
735 | end: | |
736 | return ret; | |
737 | } | |
738 | ||
739 | LTTNG_HIDDEN | |
740 | int mi_lttng_event_tracepoint_loglevel(struct mi_writer *writer, | |
741 | struct lttng_event *event) | |
742 | { | |
743 | int ret; | |
744 | ||
745 | /* event loglevel */ | |
746 | ret = mi_lttng_writer_write_element_string(writer, | |
747 | config_element_loglevel, mi_lttng_loglevel_string(event->loglevel)); | |
748 | if (ret) { | |
749 | goto end; | |
750 | } | |
751 | ||
752 | ret = mi_lttng_writer_write_element_string(writer, | |
753 | config_element_loglevel_type, | |
754 | mi_lttng_logleveltype_string(event->loglevel_type)); | |
755 | if (ret) { | |
756 | goto end; | |
757 | } | |
758 | ||
759 | /* event exclusion filter */ | |
760 | ret = mi_lttng_writer_write_element_bool(writer, | |
761 | config_element_exclusion, event->exclusion); | |
762 | if (ret) { | |
763 | goto end; | |
764 | } | |
765 | ||
766 | end: | |
767 | return ret; | |
768 | } | |
769 | ||
770 | LTTNG_HIDDEN | |
771 | int mi_lttng_event_tracepoint_no_loglevel(struct mi_writer *writer, | |
772 | struct lttng_event *event) | |
773 | { | |
774 | /* event exclusion filter */ | |
775 | return mi_lttng_writer_write_element_bool(writer, | |
776 | config_element_exclusion, event->exclusion); | |
777 | } | |
778 | ||
779 | LTTNG_HIDDEN | |
780 | int mi_lttng_event_function_probe(struct mi_writer *writer, | |
781 | struct lttng_event *event) | |
782 | { | |
783 | int ret; | |
784 | ||
785 | if (event->attr.probe.addr != 0) { | |
786 | /* event probe address */ | |
787 | ret = mi_lttng_writer_write_element_unsigned_int(writer, | |
788 | config_element_address, event->attr.probe.addr); | |
789 | if (ret) { | |
790 | goto end; | |
791 | } | |
792 | } else { | |
793 | /* event probe offset */ | |
794 | ret = mi_lttng_writer_write_element_unsigned_int(writer, | |
795 | config_element_offset, event->attr.probe.offset); | |
796 | if (ret) { | |
797 | goto end; | |
798 | } | |
799 | ||
800 | /* event probe symbol_name */ | |
801 | ret = mi_lttng_writer_write_element_string(writer, | |
802 | config_element_symbol_name, event->attr.probe.symbol_name); | |
803 | if (ret) { | |
804 | goto end; | |
805 | } | |
806 | } | |
807 | end: | |
808 | return ret; | |
809 | } | |
810 | ||
811 | LTTNG_HIDDEN | |
812 | int mi_lttng_event_function_entry(struct mi_writer *writer, | |
813 | struct lttng_event *event) | |
814 | { | |
815 | /* event probe symbol_name */ | |
816 | return mi_lttng_writer_write_element_string(writer, | |
817 | config_element_symbol_name, event->attr.ftrace.symbol_name); | |
818 | } | |
819 | ||
820 | LTTNG_HIDDEN | |
821 | int mi_lttng_events_open(struct mi_writer *writer) | |
822 | { | |
823 | return mi_lttng_writer_open_element(writer, config_element_events); | |
824 | } | |
825 | ||
826 | LTTNG_HIDDEN | |
827 | int mi_lttng_event(struct mi_writer *writer, | |
828 | struct lttng_event *event, int is_open) | |
829 | { | |
830 | int ret; | |
831 | ||
832 | ret = mi_lttng_event_common_attributes(writer, event); | |
833 | if (ret) { | |
834 | goto end; | |
835 | } | |
836 | ||
837 | switch (event->type) { | |
838 | case LTTNG_EVENT_ALL: | |
839 | /* We should never have "all" events in list. */ | |
840 | assert(0); | |
841 | break; | |
842 | case LTTNG_EVENT_TRACEPOINT: | |
843 | { | |
844 | if (event->loglevel != -1) { | |
845 | ret = mi_lttng_event_tracepoint_loglevel(writer, event); | |
846 | } else { | |
847 | ret = mi_lttng_event_tracepoint_no_loglevel(writer, event); | |
848 | } | |
849 | break; | |
850 | } | |
851 | case LTTNG_EVENT_PROBE: | |
852 | ret = mi_lttng_event_function_probe(writer, event); | |
853 | break; | |
854 | case LTTNG_EVENT_FUNCTION_ENTRY: | |
855 | ret = mi_lttng_event_function_entry(writer, event); | |
856 | break; | |
857 | default: | |
858 | break; | |
859 | } | |
860 | ||
861 | if (!is_open) { | |
862 | ret = mi_lttng_writer_close_element(writer); | |
863 | } | |
864 | ||
865 | end: | |
866 | return ret; | |
867 | } | |
868 | ||
869 | LTTNG_HIDDEN | |
870 | int mi_lttng_pids_open(struct mi_writer *writer) | |
871 | { | |
872 | return mi_lttng_writer_open_element(writer, mi_lttng_element_pids); | |
873 | } | |
874 | ||
875 | LTTNG_HIDDEN | |
876 | int mi_lttng_pid(struct mi_writer *writer, pid_t pid , const char *cmdline, | |
877 | int is_open) | |
878 | { | |
879 | int ret; | |
880 | ||
881 | /* Open element pid */ | |
882 | ret = mi_lttng_writer_open_element(writer, mi_lttng_element_pid); | |
883 | if (ret) { | |
884 | goto end; | |
885 | } | |
886 | ||
887 | /* Writing pid number */ | |
888 | ret = mi_lttng_writer_write_element_signed_int(writer, | |
889 | mi_lttng_element_pid_id, (int)pid); | |
890 | if (ret) { | |
891 | goto end; | |
892 | } | |
893 | ||
894 | /* Writing name of the process */ | |
895 | ret = mi_lttng_writer_write_element_string(writer, config_element_name, | |
896 | cmdline); | |
897 | if (ret) { | |
898 | goto end; | |
899 | } | |
900 | ||
901 | if (!is_open) { | |
902 | /* Closing Pid */ | |
903 | ret = mi_lttng_writer_close_element(writer); | |
904 | } | |
905 | ||
906 | end: | |
907 | return ret; | |
908 | } | |
909 | ||
910 | LTTNG_HIDDEN | |
911 | int mi_lttng_event_fields_open(struct mi_writer *writer) | |
912 | { | |
913 | return mi_lttng_writer_open_element(writer, mi_lttng_element_event_fields); | |
914 | } | |
915 | ||
916 | LTTNG_HIDDEN | |
917 | int mi_lttng_event_field(struct mi_writer *writer, | |
918 | struct lttng_event_field *field) | |
919 | { | |
920 | int ret; | |
921 | ||
922 | if (!field->field_name[0]) { | |
923 | /* To Review: not sure if legal david ? | |
924 | * how should this be handle ? | |
925 | */ | |
926 | ret = 0; | |
927 | goto end; | |
928 | } | |
929 | ||
930 | /* Open field */ | |
931 | ret = mi_lttng_writer_open_element(writer, mi_lttng_element_event_field); | |
932 | if (ret) { | |
933 | goto end; | |
934 | } | |
935 | ||
936 | if (!field->field_name[0]) { | |
937 | goto close; | |
938 | } | |
939 | ||
940 | /* Name */ | |
941 | ret = mi_lttng_writer_write_element_string(writer, config_element_name, | |
942 | field->field_name); | |
943 | if (ret) { | |
944 | goto end; | |
945 | } | |
946 | ||
947 | /* Type */ | |
948 | ret = mi_lttng_writer_write_element_string(writer, config_element_type, | |
949 | mi_lttng_eventfieldtype_string(field->type)); | |
950 | if (ret) { | |
951 | goto end; | |
952 | } | |
953 | ||
954 | /* nowrite */ | |
955 | ret = mi_lttng_writer_write_element_signed_int(writer, | |
956 | mi_lttng_element_nowrite, field->nowrite); | |
957 | if (ret) { | |
958 | goto end; | |
959 | } | |
960 | ||
961 | close: | |
962 | /* Close field element */ | |
963 | ret = mi_lttng_writer_close_element(writer); | |
964 | ||
965 | end: | |
966 | return ret; | |
967 | } |