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"; | |
37d03ff7 | 28 | const char * const mi_lttng_element_command_name = "name"; |
c7e35b03 JR |
29 | const char * const mi_lttng_element_command_version = "version"; |
30 | const char * const mi_lttng_element_command_list = "list"; | |
1734c658 JRJ |
31 | const char * const mi_lttng_element_command_save = "save"; |
32 | const char * const mi_lttng_element_command_load = "load"; | |
1cfc0bc8 | 33 | const char * const mi_lttng_element_command_start = "start"; |
e5b83100 | 34 | const char * const mi_lttng_element_command_stop = "stop"; |
37d03ff7 | 35 | const char * const mi_lttng_element_command_create = "create"; |
c7e35b03 | 36 | const char * const mi_lttng_element_command_output = "output"; |
1734c658 | 37 | const char * const mi_lttng_element_command_success = "success"; |
c7e35b03 | 38 | |
1734c658 | 39 | /* Strings related to version command */ |
c7e35b03 JR |
40 | const char * const mi_lttng_element_version = "version"; |
41 | const char * const mi_lttng_element_version_str = "string"; | |
42 | const char * const mi_lttng_element_version_web = "url"; | |
43 | const char * const mi_lttng_element_version_major = "major"; | |
44 | const char * const mi_lttng_element_version_minor = "minor"; | |
314d5222 | 45 | const char * const mi_lttng_element_version_commit = "commit"; |
c7e35b03 JR |
46 | const char * const mi_lttng_element_version_license = "license"; |
47 | const char * const mi_lttng_element_version_patch_level = "patchLevel"; | |
48 | const char * const mi_lttng_element_version_description = "description"; | |
49 | ||
5e18ec73 JR |
50 | /* Strings related to pid */ |
51 | const char * const mi_lttng_element_pids = "pids"; | |
52 | const char * const mi_lttng_element_pid = "pid"; | |
53 | const char * const mi_lttng_element_pid_id = "id"; | |
54 | ||
1734c658 JRJ |
55 | /* Strings related to save command */ |
56 | const char * const mi_lttng_element_save = "save"; | |
57 | ||
58 | /* Strings related to load command */ | |
59 | const char * const mi_lttng_element_load = "load"; | |
60 | ||
5e18ec73 JR |
61 | /* String related to a lttng_event_field */ |
62 | const char * const mi_lttng_element_event_field = "event_field"; | |
63 | const char * const mi_lttng_element_event_fields = "event_fields"; | |
64 | ||
65 | /* General elements of mi_lttng */ | |
66 | const char * const mi_lttng_element_type_other = "OTHER"; | |
67 | const char * const mi_lttng_element_type_integer = "INTEGER"; | |
68 | const char * const mi_lttng_element_type_enum = "ENUM"; | |
69 | const char * const mi_lttng_element_type_float = "FLOAT"; | |
70 | const char * const mi_lttng_element_type_string = "STRING"; | |
71 | const char * const mi_lttng_element_nowrite = "nowrite"; | |
72 | ||
73 | /* String related to loglevel */ | |
74 | const char * const mi_lttng_loglevel_str_alert = "TRACE_ALERT"; | |
75 | const char * const mi_lttng_loglevel_str_crit = "TRACE_CRIT"; | |
76 | const char * const mi_lttng_loglevel_str_debug = "TRACE_DEBUG"; | |
77 | const char * const mi_lttng_loglevel_str_debug_function = "TRACE_DEBUG_FUNCTION"; | |
78 | const char * const mi_lttng_loglevel_str_debug_line = "TRACE_DEBUG_LINE"; | |
79 | const char * const mi_lttng_loglevel_str_debug_module = "TRACE_DEBUG_MODULE"; | |
80 | const char * const mi_lttng_loglevel_str_debug_process = "TRACE_DEBUG_PROCESS"; | |
81 | const char * const mi_lttng_loglevel_str_debug_program = "TRACE_DEBUG_PROGRAM"; | |
82 | const char * const mi_lttng_loglevel_str_debug_system = "TRACE_DEBUG_SYSTEM"; | |
83 | const char * const mi_lttng_loglevel_str_debug_unit = "TRACE_DEBUG_UNIT"; | |
84 | const char * const mi_lttng_loglevel_str_emerg = "TRACE_EMERG"; | |
85 | const char * const mi_lttng_loglevel_str_err = "TRACE_ERR"; | |
86 | const char * const mi_lttng_loglevel_str_info = "TRACE_INFO"; | |
87 | const char * const mi_lttng_loglevel_str_notice = "TRACE_NOTICE"; | |
88 | const char * const mi_lttng_loglevel_str_unknown = "UNKNOWN"; | |
89 | const char * const mi_lttng_loglevel_str_warning = "TRACE_WARNING"; | |
90 | ||
1734c658 | 91 | /* String related to loglevel type */ |
5e18ec73 JR |
92 | const char * const mi_lttng_loglevel_type_all = "ALL"; |
93 | const char * const mi_lttng_loglevel_type_range = "RANGE"; | |
94 | const char * const mi_lttng_loglevel_type_single = "SINGLE"; | |
95 | const char * const mi_lttng_loglevel_type_unknown = "UNKNOWN"; | |
96 | ||
97 | const char * const mi_lttng_element_empty = ""; | |
98 | ||
99 | const char *mi_lttng_loglevel_string(int value) | |
100 | { | |
101 | switch (value) { | |
102 | case -1: | |
103 | return mi_lttng_element_empty; | |
104 | case LTTNG_LOGLEVEL_EMERG: | |
105 | return mi_lttng_loglevel_str_emerg; | |
106 | case LTTNG_LOGLEVEL_ALERT: | |
107 | return mi_lttng_loglevel_str_alert; | |
108 | case LTTNG_LOGLEVEL_CRIT: | |
109 | return mi_lttng_loglevel_str_crit; | |
110 | case LTTNG_LOGLEVEL_ERR: | |
111 | return mi_lttng_loglevel_str_err; | |
112 | case LTTNG_LOGLEVEL_WARNING: | |
113 | return mi_lttng_loglevel_str_warning; | |
114 | case LTTNG_LOGLEVEL_NOTICE: | |
115 | return mi_lttng_loglevel_str_notice; | |
116 | case LTTNG_LOGLEVEL_INFO: | |
117 | return mi_lttng_loglevel_str_info; | |
118 | case LTTNG_LOGLEVEL_DEBUG_SYSTEM: | |
119 | return mi_lttng_loglevel_str_debug_system; | |
120 | case LTTNG_LOGLEVEL_DEBUG_PROGRAM: | |
121 | return mi_lttng_loglevel_str_debug_program; | |
122 | case LTTNG_LOGLEVEL_DEBUG_PROCESS: | |
123 | return mi_lttng_loglevel_str_debug_process; | |
124 | case LTTNG_LOGLEVEL_DEBUG_MODULE: | |
125 | return mi_lttng_loglevel_str_debug_module; | |
126 | case LTTNG_LOGLEVEL_DEBUG_UNIT: | |
127 | return mi_lttng_loglevel_str_debug_unit; | |
128 | case LTTNG_LOGLEVEL_DEBUG_FUNCTION: | |
129 | return mi_lttng_loglevel_str_debug_function; | |
130 | case LTTNG_LOGLEVEL_DEBUG_LINE: | |
131 | return mi_lttng_loglevel_str_debug_line; | |
132 | case LTTNG_LOGLEVEL_DEBUG: | |
133 | return mi_lttng_loglevel_str_debug; | |
134 | default: | |
135 | return mi_lttng_loglevel_str_unknown; | |
136 | } | |
137 | } | |
138 | ||
139 | const char *mi_lttng_logleveltype_string(enum lttng_loglevel_type value) | |
140 | { | |
141 | switch (value) { | |
142 | case LTTNG_EVENT_LOGLEVEL_ALL: | |
143 | return mi_lttng_loglevel_type_all; | |
144 | case LTTNG_EVENT_LOGLEVEL_RANGE: | |
145 | return mi_lttng_loglevel_type_range; | |
146 | case LTTNG_EVENT_LOGLEVEL_SINGLE: | |
147 | return mi_lttng_loglevel_type_single; | |
148 | default: | |
149 | return mi_lttng_loglevel_type_unknown; | |
150 | } | |
151 | } | |
152 | ||
153 | const char *mi_lttng_eventtype_string(enum lttng_event_type value) | |
154 | { | |
155 | switch (value) { | |
156 | case LTTNG_EVENT_ALL: | |
157 | return config_event_type_all; | |
158 | case LTTNG_EVENT_TRACEPOINT: | |
159 | return config_event_type_tracepoint; | |
160 | case LTTNG_EVENT_PROBE: | |
161 | return config_event_type_probe; | |
162 | case LTTNG_EVENT_FUNCTION: | |
163 | return config_event_type_function; | |
164 | case LTTNG_EVENT_FUNCTION_ENTRY: | |
165 | return config_event_type_function_entry; | |
166 | case LTTNG_EVENT_SYSCALL: | |
167 | return config_event_type_syscall; | |
168 | case LTTNG_EVENT_NOOP: | |
169 | return config_event_type_noop; | |
170 | default: | |
171 | return mi_lttng_element_empty; | |
172 | } | |
173 | } | |
174 | ||
175 | const char *mi_lttng_eventfieldtype_string(enum lttng_event_field_type val) | |
176 | { | |
177 | switch (val) { | |
178 | case(LTTNG_EVENT_FIELD_INTEGER): | |
179 | return mi_lttng_element_type_integer; | |
180 | case(LTTNG_EVENT_FIELD_ENUM): | |
181 | return mi_lttng_element_type_enum; | |
182 | case(LTTNG_EVENT_FIELD_FLOAT): | |
183 | return mi_lttng_element_type_float; | |
184 | case(LTTNG_EVENT_FIELD_STRING): | |
185 | return mi_lttng_element_type_string; | |
186 | default: | |
187 | return mi_lttng_element_type_other; | |
188 | } | |
189 | } | |
190 | ||
191 | const char *mi_lttng_domaintype_string(enum lttng_domain_type value) | |
192 | { | |
193 | /* Note: This is a *duplicate* of get_domain_str from bin/lttng/utils.c */ | |
194 | switch (value) { | |
195 | case LTTNG_DOMAIN_KERNEL: | |
196 | return config_domain_type_kernel; | |
197 | case LTTNG_DOMAIN_UST: | |
198 | return config_domain_type_ust; | |
199 | case LTTNG_DOMAIN_JUL: | |
200 | return config_domain_type_jul; | |
201 | default: | |
202 | /* Should not have an unknown domain */ | |
203 | assert(0); | |
204 | } | |
205 | } | |
206 | ||
207 | const char *mi_lttng_buffertype_string(enum lttng_buffer_type value) | |
208 | { | |
209 | switch (value) { | |
210 | case LTTNG_BUFFER_PER_PID: | |
211 | return config_buffer_type_per_pid; | |
212 | case LTTNG_BUFFER_PER_UID: | |
213 | return config_buffer_type_per_uid; | |
214 | case LTTNG_BUFFER_GLOBAL: | |
215 | return config_buffer_type_global; | |
216 | default: | |
217 | /* Should not have an unknow buffer type */ | |
218 | assert(0); | |
219 | } | |
220 | } | |
221 | ||
c7e35b03 JR |
222 | LTTNG_HIDDEN |
223 | struct mi_writer *mi_lttng_writer_create(int fd_output, int mi_output_type) | |
224 | { | |
225 | struct mi_writer *mi_writer; | |
226 | ||
227 | mi_writer = zmalloc(sizeof(struct mi_writer)); | |
228 | if (!mi_writer) { | |
229 | PERROR("zmalloc mi_writer_create"); | |
230 | goto end; | |
231 | } | |
232 | if (mi_output_type == LTTNG_MI_XML) { | |
233 | mi_writer->writer = config_writer_create(fd_output); | |
234 | if (!mi_writer->writer) { | |
235 | goto err_destroy; | |
236 | } | |
237 | mi_writer->type = LTTNG_MI_XML; | |
238 | } else { | |
239 | goto err_destroy; | |
240 | } | |
241 | ||
242 | end: | |
243 | return mi_writer; | |
244 | ||
245 | err_destroy: | |
246 | free(mi_writer); | |
247 | return NULL; | |
248 | } | |
249 | ||
250 | LTTNG_HIDDEN | |
251 | int mi_lttng_writer_destroy(struct mi_writer *writer) | |
252 | { | |
253 | int ret; | |
254 | ||
255 | if (!writer) { | |
256 | ret = -EINVAL; | |
257 | goto end; | |
258 | } | |
259 | ||
260 | ret = config_writer_destroy(writer->writer); | |
261 | if (ret < 0) { | |
262 | goto end; | |
263 | } | |
264 | ||
265 | free(writer); | |
266 | end: | |
267 | return ret; | |
268 | } | |
269 | ||
270 | LTTNG_HIDDEN | |
271 | int mi_lttng_writer_command_open(struct mi_writer *writer, const char *command) | |
272 | { | |
273 | int ret; | |
274 | ||
275 | ret = mi_lttng_writer_open_element(writer, mi_lttng_element_command); | |
276 | if (ret) { | |
277 | goto end; | |
278 | } | |
279 | ret = mi_lttng_writer_write_element_string(writer, | |
280 | mi_lttng_element_command_name, command); | |
281 | end: | |
282 | return ret; | |
283 | } | |
284 | ||
285 | LTTNG_HIDDEN | |
286 | int mi_lttng_writer_command_close(struct mi_writer *writer) | |
287 | { | |
288 | return mi_lttng_writer_close_element(writer); | |
289 | } | |
290 | ||
291 | LTTNG_HIDDEN | |
292 | int mi_lttng_writer_open_element(struct mi_writer *writer, | |
293 | const char *element_name) | |
294 | { | |
295 | return config_writer_open_element(writer->writer, element_name); | |
296 | } | |
297 | ||
298 | LTTNG_HIDDEN | |
299 | int mi_lttng_writer_close_element(struct mi_writer *writer) | |
300 | { | |
301 | return config_writer_close_element(writer->writer); | |
302 | } | |
303 | ||
5e18ec73 JR |
304 | LTTNG_HIDDEN |
305 | int mi_lttng_close_multi_element(struct mi_writer *writer, | |
306 | unsigned int nb_element) | |
307 | { | |
308 | int ret, i; | |
309 | ||
310 | if (nb_element < 1) { | |
311 | ret = 0; | |
312 | goto end; | |
313 | } | |
314 | for (i = 0; i < nb_element; i++) { | |
315 | ret = mi_lttng_writer_close_element(writer); | |
316 | if (ret) { | |
317 | goto end; | |
318 | } | |
319 | } | |
320 | end: | |
321 | return ret; | |
322 | } | |
323 | ||
c7e35b03 JR |
324 | LTTNG_HIDDEN |
325 | int mi_lttng_writer_write_element_unsigned_int(struct mi_writer *writer, | |
326 | const char *element_name, uint64_t value) | |
327 | { | |
328 | return config_writer_write_element_unsigned_int(writer->writer, | |
329 | element_name, value); | |
330 | } | |
331 | ||
332 | LTTNG_HIDDEN | |
333 | int mi_lttng_writer_write_element_signed_int(struct mi_writer *writer, | |
334 | const char *element_name, int64_t value) | |
335 | { | |
336 | return config_writer_write_element_signed_int(writer->writer, | |
337 | element_name, value); | |
338 | } | |
339 | ||
340 | LTTNG_HIDDEN | |
341 | int mi_lttng_writer_write_element_bool(struct mi_writer *writer, | |
342 | const char *element_name, int value) | |
343 | { | |
344 | return config_writer_write_element_bool(writer->writer, | |
345 | element_name, value); | |
346 | } | |
347 | ||
348 | LTTNG_HIDDEN | |
349 | int mi_lttng_writer_write_element_string(struct mi_writer *writer, | |
350 | const char *element_name, const char *value) | |
351 | { | |
352 | return config_writer_write_element_string(writer->writer, | |
353 | element_name, value); | |
354 | } | |
355 | ||
356 | LTTNG_HIDDEN | |
357 | int mi_lttng_version(struct mi_writer *writer, struct mi_lttng_version *version, | |
358 | const char *lttng_description, const char *lttng_license) | |
359 | { | |
360 | int ret; | |
361 | ||
362 | /* Open version */ | |
363 | ret = mi_lttng_writer_open_element(writer, mi_lttng_element_version); | |
364 | if (ret) { | |
365 | goto end; | |
366 | } | |
367 | ||
368 | /* Version string (contain info like rc etc.) */ | |
369 | ret = mi_lttng_writer_write_element_string(writer, | |
370 | mi_lttng_element_version_str, VERSION); | |
371 | if (ret) { | |
372 | goto end; | |
373 | } | |
374 | ||
375 | /* Major version number */ | |
376 | ret = mi_lttng_writer_write_element_unsigned_int(writer, | |
377 | mi_lttng_element_version_major, version->version_major); | |
378 | if (ret) { | |
379 | goto end; | |
380 | } | |
381 | ||
382 | /* Minor version number */ | |
383 | ret = mi_lttng_writer_write_element_unsigned_int(writer, | |
384 | mi_lttng_element_version_minor, version->version_minor); | |
385 | if (ret) { | |
386 | goto end; | |
387 | } | |
388 | ||
314d5222 JRJ |
389 | /* Commit version number */ |
390 | ret = mi_lttng_writer_write_element_string(writer, | |
391 | mi_lttng_element_version_commit, version->version_commit); | |
392 | if (ret) { | |
393 | goto end; | |
394 | } | |
395 | ||
c7e35b03 JR |
396 | /* Patch number */ |
397 | ret = mi_lttng_writer_write_element_unsigned_int(writer, | |
398 | mi_lttng_element_version_patch_level, version->version_patchlevel); | |
399 | if (ret) { | |
400 | goto end; | |
401 | } | |
402 | ||
403 | /* Name of the version */ | |
404 | ret = mi_lttng_writer_write_element_string(writer, | |
405 | config_element_name, version->version_name); | |
406 | if (ret) { | |
407 | goto end; | |
408 | } | |
409 | ||
410 | /* Description mostly related to beer... */ | |
411 | ret = mi_lttng_writer_write_element_string(writer, | |
412 | mi_lttng_element_version_description, lttng_description); | |
413 | if (ret) { | |
414 | goto end; | |
415 | } | |
416 | ||
417 | /* url */ | |
418 | ret = mi_lttng_writer_write_element_string(writer, | |
419 | mi_lttng_element_version_web, version->package_url); | |
420 | if (ret) { | |
421 | goto end; | |
422 | } | |
423 | ||
424 | /* License: free as in free beer...no...*speech* */ | |
425 | ret = mi_lttng_writer_write_element_string(writer, | |
426 | mi_lttng_element_version_license, lttng_license); | |
427 | if (ret) { | |
428 | goto end; | |
429 | } | |
430 | ||
431 | /* Close version element */ | |
432 | ret = mi_lttng_writer_close_element(writer); | |
433 | ||
434 | end: | |
435 | return ret; | |
436 | } | |
437 | ||
5e18ec73 JR |
438 | LTTNG_HIDDEN |
439 | int mi_lttng_sessions_open(struct mi_writer *writer) | |
440 | { | |
441 | return mi_lttng_writer_open_element(writer, config_element_sessions); | |
442 | } | |
443 | ||
c7e35b03 JR |
444 | LTTNG_HIDDEN |
445 | int mi_lttng_session(struct mi_writer *writer, | |
446 | struct lttng_session *session, int is_open) | |
447 | { | |
448 | int ret; | |
449 | ||
5e18ec73 JR |
450 | assert(session); |
451 | ||
452 | /* Open sessions element */ | |
c7e35b03 JR |
453 | ret = mi_lttng_writer_open_element(writer, |
454 | config_element_session); | |
455 | if (ret) { | |
456 | goto end; | |
457 | } | |
458 | ||
459 | /* Name of the session */ | |
460 | ret = mi_lttng_writer_write_element_string(writer, | |
461 | config_element_name, session->name); | |
462 | if (ret) { | |
463 | goto end; | |
464 | } | |
465 | ||
5e18ec73 | 466 | /* Path */ |
c7e35b03 JR |
467 | ret = mi_lttng_writer_write_element_string(writer, |
468 | config_element_path, session->path); | |
469 | if (ret) { | |
470 | goto end; | |
471 | } | |
472 | ||
5e18ec73 JR |
473 | /* Enabled ? */ |
474 | ret = mi_lttng_writer_write_element_bool(writer, | |
c7e35b03 JR |
475 | config_element_enabled, session->enabled); |
476 | if (ret) { | |
477 | goto end; | |
478 | } | |
479 | ||
5e18ec73 | 480 | /* Snapshot mode */ |
c7e35b03 JR |
481 | ret = mi_lttng_writer_write_element_unsigned_int(writer, |
482 | config_element_snapshot_mode, session->snapshot_mode); | |
483 | if (ret) { | |
484 | goto end; | |
485 | } | |
486 | ||
5e18ec73 | 487 | /* Live timer interval in usec */ |
c7e35b03 JR |
488 | ret = mi_lttng_writer_write_element_unsigned_int(writer, |
489 | config_element_live_timer_interval, | |
490 | session->live_timer_interval); | |
491 | if (ret) { | |
492 | goto end; | |
493 | } | |
494 | ||
495 | if (!is_open) { | |
496 | /* Closing session element */ | |
497 | ret = mi_lttng_writer_close_element(writer); | |
498 | } | |
499 | end: | |
500 | return ret; | |
501 | ||
502 | } | |
5e18ec73 JR |
503 | |
504 | LTTNG_HIDDEN | |
505 | int mi_lttng_domains_open(struct mi_writer *writer) | |
506 | { | |
507 | return mi_lttng_writer_open_element(writer, config_element_domains); | |
508 | } | |
509 | ||
510 | LTTNG_HIDDEN | |
511 | int mi_lttng_domain(struct mi_writer *writer, | |
512 | struct lttng_domain *domain, int is_open) | |
513 | { | |
514 | int ret = 0; | |
515 | const char *str_domain; | |
516 | const char *str_buffer; | |
517 | ||
518 | assert(domain); | |
519 | ||
520 | /* Open domain element */ | |
521 | ret = mi_lttng_writer_open_element(writer, config_element_domain); | |
522 | if (ret) { | |
523 | goto end; | |
524 | } | |
525 | ||
526 | /* Domain Type */ | |
527 | str_domain = mi_lttng_domaintype_string(domain->type); | |
528 | ret = mi_lttng_writer_write_element_string(writer, config_element_type, | |
529 | str_domain); | |
530 | if (ret) { | |
531 | goto end; | |
532 | } | |
533 | ||
534 | /* Buffer Type */ | |
535 | str_buffer= mi_lttng_buffertype_string(domain->buf_type); | |
536 | ret = mi_lttng_writer_write_element_string(writer, | |
537 | config_element_buffer_type, str_buffer); | |
538 | if (ret) { | |
539 | goto end; | |
540 | } | |
541 | ||
542 | /* TODO: attr... not sure how to use the union.... */ | |
543 | ||
544 | if (!is_open) { | |
545 | /* Closing domain element */ | |
546 | ret = mi_lttng_writer_close_element(writer); | |
547 | } | |
548 | ||
549 | end: | |
550 | return ret; | |
551 | ||
552 | } | |
553 | ||
554 | LTTNG_HIDDEN | |
555 | int mi_lttng_channels_open(struct mi_writer *writer) | |
556 | { | |
557 | return mi_lttng_writer_open_element(writer, config_element_channels); | |
558 | } | |
559 | ||
560 | LTTNG_HIDDEN | |
561 | int mi_lttng_channel(struct mi_writer *writer, | |
562 | struct lttng_channel *channel, int is_open) | |
563 | { | |
564 | int ret = 0; | |
565 | ||
566 | assert(channel); | |
567 | ||
568 | /* Opening channel element */ | |
569 | ret = mi_lttng_writer_open_element(writer, config_element_channel); | |
570 | if (ret) { | |
571 | goto end; | |
572 | } | |
573 | ||
574 | /* Name */ | |
575 | ret = mi_lttng_writer_write_element_string(writer, config_element_name, | |
576 | channel->name); | |
577 | if (ret) { | |
578 | goto end; | |
579 | } | |
580 | ||
581 | /* Enabled ? */ | |
582 | ret = mi_lttng_writer_write_element_bool(writer, | |
583 | config_element_enabled, channel->enabled); | |
584 | if (ret) { | |
585 | goto end; | |
586 | } | |
587 | ||
588 | /* Attribute */ | |
589 | ret = mi_lttng_channel_attr(writer, &channel->attr); | |
590 | if (ret) { | |
591 | goto end; | |
592 | } | |
593 | ||
594 | if (!is_open) { | |
595 | /* Closing channel element */ | |
596 | ret = mi_lttng_writer_close_element(writer); | |
597 | if (ret) { | |
598 | goto end; | |
599 | } | |
600 | } | |
601 | end: | |
602 | return ret; | |
603 | } | |
604 | ||
605 | LTTNG_HIDDEN | |
606 | int mi_lttng_channel_attr(struct mi_writer *writer, | |
607 | struct lttng_channel_attr *attr) | |
608 | { | |
609 | int ret = 0; | |
610 | ||
611 | assert(attr); | |
612 | ||
613 | /* Opening Attributes */ | |
614 | ret = mi_lttng_writer_open_element(writer, config_element_attributes); | |
615 | if (ret) { | |
616 | goto end; | |
617 | } | |
618 | ||
619 | /* Overwrite */ | |
620 | ret = mi_lttng_writer_write_element_string(writer, | |
621 | config_element_overwrite_mode, | |
622 | attr->overwrite ? config_overwrite_mode_overwrite : | |
623 | config_overwrite_mode_discard); | |
624 | if (ret) { | |
625 | goto end; | |
626 | } | |
627 | ||
628 | /* Sub buffer size in byte */ | |
629 | ret = mi_lttng_writer_write_element_unsigned_int(writer, | |
630 | config_element_subbuf_size, attr->subbuf_size); | |
631 | if (ret) { | |
632 | goto end; | |
633 | } | |
634 | ||
635 | /* Number of subbuffer (power of two) */ | |
636 | ret = mi_lttng_writer_write_element_unsigned_int(writer, | |
637 | config_element_num_subbuf, | |
638 | attr->num_subbuf); | |
639 | if (ret) { | |
640 | goto end; | |
641 | } | |
642 | ||
643 | /* Switch timer interval in usec */ | |
644 | ret = mi_lttng_writer_write_element_unsigned_int(writer, | |
645 | config_element_switch_timer_interval, | |
646 | attr->switch_timer_interval); | |
647 | if (ret) { | |
648 | goto end; | |
649 | } | |
650 | ||
651 | /* Read timer interval in usec */ | |
652 | ret = mi_lttng_writer_write_element_unsigned_int(writer, | |
653 | config_element_read_timer_interval, | |
654 | attr->read_timer_interval); | |
655 | if (ret) { | |
656 | goto end; | |
657 | } | |
658 | ||
659 | /* Event output */ | |
660 | ret = mi_lttng_writer_write_element_string(writer, | |
661 | config_element_output_type, | |
662 | attr->output == LTTNG_EVENT_SPLICE ? | |
663 | config_output_type_splice : config_output_type_mmap); | |
664 | if (ret) { | |
665 | goto end; | |
666 | } | |
667 | ||
668 | /* Tracefile size in bytes */ | |
669 | ret = mi_lttng_writer_write_element_unsigned_int(writer, | |
670 | config_element_tracefile_size, attr->tracefile_size); | |
671 | if (ret) { | |
672 | goto end; | |
673 | } | |
674 | ||
675 | /* Count of tracefiles */ | |
676 | ret = mi_lttng_writer_write_element_unsigned_int(writer, | |
677 | config_element_tracefile_count, | |
678 | attr->tracefile_count); | |
679 | if (ret) { | |
680 | goto end; | |
681 | } | |
682 | ||
683 | /* Live timer interval in usec*/ | |
684 | ret = mi_lttng_writer_write_element_unsigned_int(writer, | |
685 | config_element_live_timer_interval, | |
686 | attr->live_timer_interval); | |
687 | if (ret) { | |
688 | goto end; | |
689 | } | |
690 | ||
691 | /* Closing attributes */ | |
692 | ret = mi_lttng_writer_close_element(writer); | |
693 | if (ret) { | |
694 | goto end; | |
695 | } | |
696 | end: | |
697 | return ret; | |
698 | ||
699 | } | |
700 | ||
701 | LTTNG_HIDDEN | |
702 | int mi_lttng_event_common_attributes(struct mi_writer *writer, | |
703 | struct lttng_event *event) | |
704 | { | |
705 | int ret; | |
706 | ||
707 | /* Open event element */ | |
708 | ret = mi_lttng_writer_open_element(writer, config_element_event); | |
709 | if (ret) { | |
710 | goto end; | |
711 | } | |
712 | ||
713 | /* event name */ | |
714 | ret = mi_lttng_writer_write_element_string(writer, | |
715 | config_element_name, event->name); | |
716 | if (ret) { | |
717 | goto end; | |
718 | } | |
719 | ||
720 | /* event type */ | |
721 | ret = mi_lttng_writer_write_element_string(writer, | |
722 | config_element_type, mi_lttng_eventtype_string(event->type)); | |
723 | if (ret) { | |
724 | goto end; | |
725 | } | |
726 | ||
727 | /* is event enabled */ | |
728 | ret = mi_lttng_writer_write_element_bool(writer, | |
729 | config_element_enabled, event->enabled); | |
730 | if (ret) { | |
731 | goto end; | |
732 | } | |
733 | ||
734 | /* event filter enabled? */ | |
735 | ret = mi_lttng_writer_write_element_bool(writer, | |
736 | config_element_filter, event->filter); | |
737 | ||
738 | end: | |
739 | return ret; | |
740 | } | |
741 | ||
742 | LTTNG_HIDDEN | |
743 | int mi_lttng_event_tracepoint_loglevel(struct mi_writer *writer, | |
744 | struct lttng_event *event) | |
745 | { | |
746 | int ret; | |
747 | ||
748 | /* event loglevel */ | |
749 | ret = mi_lttng_writer_write_element_string(writer, | |
750 | config_element_loglevel, mi_lttng_loglevel_string(event->loglevel)); | |
751 | if (ret) { | |
752 | goto end; | |
753 | } | |
754 | ||
755 | ret = mi_lttng_writer_write_element_string(writer, | |
756 | config_element_loglevel_type, | |
757 | mi_lttng_logleveltype_string(event->loglevel_type)); | |
758 | if (ret) { | |
759 | goto end; | |
760 | } | |
761 | ||
762 | /* event exclusion filter */ | |
763 | ret = mi_lttng_writer_write_element_bool(writer, | |
764 | config_element_exclusion, event->exclusion); | |
765 | if (ret) { | |
766 | goto end; | |
767 | } | |
768 | ||
769 | end: | |
770 | return ret; | |
771 | } | |
772 | ||
773 | LTTNG_HIDDEN | |
774 | int mi_lttng_event_tracepoint_no_loglevel(struct mi_writer *writer, | |
775 | struct lttng_event *event) | |
776 | { | |
777 | /* event exclusion filter */ | |
778 | return mi_lttng_writer_write_element_bool(writer, | |
779 | config_element_exclusion, event->exclusion); | |
780 | } | |
781 | ||
782 | LTTNG_HIDDEN | |
783 | int mi_lttng_event_function_probe(struct mi_writer *writer, | |
784 | struct lttng_event *event) | |
785 | { | |
786 | int ret; | |
787 | ||
788 | if (event->attr.probe.addr != 0) { | |
789 | /* event probe address */ | |
790 | ret = mi_lttng_writer_write_element_unsigned_int(writer, | |
791 | config_element_address, event->attr.probe.addr); | |
792 | if (ret) { | |
793 | goto end; | |
794 | } | |
795 | } else { | |
796 | /* event probe offset */ | |
797 | ret = mi_lttng_writer_write_element_unsigned_int(writer, | |
798 | config_element_offset, event->attr.probe.offset); | |
799 | if (ret) { | |
800 | goto end; | |
801 | } | |
802 | ||
803 | /* event probe symbol_name */ | |
804 | ret = mi_lttng_writer_write_element_string(writer, | |
805 | config_element_symbol_name, event->attr.probe.symbol_name); | |
806 | if (ret) { | |
807 | goto end; | |
808 | } | |
809 | } | |
810 | end: | |
811 | return ret; | |
812 | } | |
813 | ||
814 | LTTNG_HIDDEN | |
815 | int mi_lttng_event_function_entry(struct mi_writer *writer, | |
816 | struct lttng_event *event) | |
817 | { | |
818 | /* event probe symbol_name */ | |
819 | return mi_lttng_writer_write_element_string(writer, | |
820 | config_element_symbol_name, event->attr.ftrace.symbol_name); | |
821 | } | |
822 | ||
823 | LTTNG_HIDDEN | |
824 | int mi_lttng_events_open(struct mi_writer *writer) | |
825 | { | |
826 | return mi_lttng_writer_open_element(writer, config_element_events); | |
827 | } | |
828 | ||
829 | LTTNG_HIDDEN | |
830 | int mi_lttng_event(struct mi_writer *writer, | |
831 | struct lttng_event *event, int is_open) | |
832 | { | |
833 | int ret; | |
834 | ||
835 | ret = mi_lttng_event_common_attributes(writer, event); | |
836 | if (ret) { | |
837 | goto end; | |
838 | } | |
839 | ||
840 | switch (event->type) { | |
841 | case LTTNG_EVENT_ALL: | |
842 | /* We should never have "all" events in list. */ | |
843 | assert(0); | |
844 | break; | |
845 | case LTTNG_EVENT_TRACEPOINT: | |
846 | { | |
847 | if (event->loglevel != -1) { | |
848 | ret = mi_lttng_event_tracepoint_loglevel(writer, event); | |
849 | } else { | |
850 | ret = mi_lttng_event_tracepoint_no_loglevel(writer, event); | |
851 | } | |
852 | break; | |
853 | } | |
854 | case LTTNG_EVENT_PROBE: | |
855 | ret = mi_lttng_event_function_probe(writer, event); | |
856 | break; | |
857 | case LTTNG_EVENT_FUNCTION_ENTRY: | |
858 | ret = mi_lttng_event_function_entry(writer, event); | |
859 | break; | |
860 | default: | |
861 | break; | |
862 | } | |
863 | ||
864 | if (!is_open) { | |
865 | ret = mi_lttng_writer_close_element(writer); | |
866 | } | |
867 | ||
868 | end: | |
869 | return ret; | |
870 | } | |
871 | ||
872 | LTTNG_HIDDEN | |
873 | int mi_lttng_pids_open(struct mi_writer *writer) | |
874 | { | |
875 | return mi_lttng_writer_open_element(writer, mi_lttng_element_pids); | |
876 | } | |
877 | ||
878 | LTTNG_HIDDEN | |
879 | int mi_lttng_pid(struct mi_writer *writer, pid_t pid , const char *cmdline, | |
880 | int is_open) | |
881 | { | |
882 | int ret; | |
883 | ||
884 | /* Open element pid */ | |
885 | ret = mi_lttng_writer_open_element(writer, mi_lttng_element_pid); | |
886 | if (ret) { | |
887 | goto end; | |
888 | } | |
889 | ||
890 | /* Writing pid number */ | |
891 | ret = mi_lttng_writer_write_element_signed_int(writer, | |
892 | mi_lttng_element_pid_id, (int)pid); | |
893 | if (ret) { | |
894 | goto end; | |
895 | } | |
896 | ||
897 | /* Writing name of the process */ | |
898 | ret = mi_lttng_writer_write_element_string(writer, config_element_name, | |
899 | cmdline); | |
900 | if (ret) { | |
901 | goto end; | |
902 | } | |
903 | ||
904 | if (!is_open) { | |
905 | /* Closing Pid */ | |
906 | ret = mi_lttng_writer_close_element(writer); | |
907 | } | |
908 | ||
909 | end: | |
910 | return ret; | |
911 | } | |
912 | ||
913 | LTTNG_HIDDEN | |
914 | int mi_lttng_event_fields_open(struct mi_writer *writer) | |
915 | { | |
916 | return mi_lttng_writer_open_element(writer, mi_lttng_element_event_fields); | |
917 | } | |
918 | ||
919 | LTTNG_HIDDEN | |
920 | int mi_lttng_event_field(struct mi_writer *writer, | |
921 | struct lttng_event_field *field) | |
922 | { | |
923 | int ret; | |
924 | ||
925 | if (!field->field_name[0]) { | |
926 | /* To Review: not sure if legal david ? | |
927 | * how should this be handle ? | |
928 | */ | |
929 | ret = 0; | |
930 | goto end; | |
931 | } | |
932 | ||
933 | /* Open field */ | |
934 | ret = mi_lttng_writer_open_element(writer, mi_lttng_element_event_field); | |
935 | if (ret) { | |
936 | goto end; | |
937 | } | |
938 | ||
939 | if (!field->field_name[0]) { | |
940 | goto close; | |
941 | } | |
942 | ||
943 | /* Name */ | |
944 | ret = mi_lttng_writer_write_element_string(writer, config_element_name, | |
945 | field->field_name); | |
946 | if (ret) { | |
947 | goto end; | |
948 | } | |
949 | ||
950 | /* Type */ | |
951 | ret = mi_lttng_writer_write_element_string(writer, config_element_type, | |
952 | mi_lttng_eventfieldtype_string(field->type)); | |
953 | if (ret) { | |
954 | goto end; | |
955 | } | |
956 | ||
957 | /* nowrite */ | |
958 | ret = mi_lttng_writer_write_element_signed_int(writer, | |
959 | mi_lttng_element_nowrite, field->nowrite); | |
960 | if (ret) { | |
961 | goto end; | |
962 | } | |
963 | ||
964 | close: | |
965 | /* Close field element */ | |
966 | ret = mi_lttng_writer_close_element(writer); | |
967 | ||
968 | end: | |
969 | return ret; | |
970 | } |