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