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