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"; |
65f25c66 | 36 | const char * const mi_lttng_element_command_destroy = "destroy"; |
c7e35b03 | 37 | const char * const mi_lttng_element_command_output = "output"; |
1734c658 | 38 | const char * const mi_lttng_element_command_success = "success"; |
c7e35b03 | 39 | |
1734c658 | 40 | /* Strings related to version command */ |
c7e35b03 JR |
41 | const char * const mi_lttng_element_version = "version"; |
42 | const char * const mi_lttng_element_version_str = "string"; | |
43 | const char * const mi_lttng_element_version_web = "url"; | |
44 | const char * const mi_lttng_element_version_major = "major"; | |
45 | const char * const mi_lttng_element_version_minor = "minor"; | |
314d5222 | 46 | const char * const mi_lttng_element_version_commit = "commit"; |
c7e35b03 JR |
47 | const char * const mi_lttng_element_version_license = "license"; |
48 | const char * const mi_lttng_element_version_patch_level = "patchLevel"; | |
49 | const char * const mi_lttng_element_version_description = "description"; | |
50 | ||
5e18ec73 JR |
51 | /* Strings related to pid */ |
52 | const char * const mi_lttng_element_pids = "pids"; | |
53 | const char * const mi_lttng_element_pid = "pid"; | |
54 | const char * const mi_lttng_element_pid_id = "id"; | |
55 | ||
1734c658 JRJ |
56 | /* Strings related to save command */ |
57 | const char * const mi_lttng_element_save = "save"; | |
58 | ||
59 | /* Strings related to load command */ | |
60 | const char * const mi_lttng_element_load = "load"; | |
61 | ||
5e18ec73 JR |
62 | /* String related to a lttng_event_field */ |
63 | const char * const mi_lttng_element_event_field = "event_field"; | |
64 | const char * const mi_lttng_element_event_fields = "event_fields"; | |
65 | ||
66 | /* General elements of mi_lttng */ | |
67 | const char * const mi_lttng_element_type_other = "OTHER"; | |
68 | const char * const mi_lttng_element_type_integer = "INTEGER"; | |
69 | const char * const mi_lttng_element_type_enum = "ENUM"; | |
70 | const char * const mi_lttng_element_type_float = "FLOAT"; | |
71 | const char * const mi_lttng_element_type_string = "STRING"; | |
72 | const char * const mi_lttng_element_nowrite = "nowrite"; | |
73 | ||
74 | /* String related to loglevel */ | |
75 | const char * const mi_lttng_loglevel_str_alert = "TRACE_ALERT"; | |
76 | const char * const mi_lttng_loglevel_str_crit = "TRACE_CRIT"; | |
77 | const char * const mi_lttng_loglevel_str_debug = "TRACE_DEBUG"; | |
78 | const char * const mi_lttng_loglevel_str_debug_function = "TRACE_DEBUG_FUNCTION"; | |
79 | const char * const mi_lttng_loglevel_str_debug_line = "TRACE_DEBUG_LINE"; | |
80 | const char * const mi_lttng_loglevel_str_debug_module = "TRACE_DEBUG_MODULE"; | |
81 | const char * const mi_lttng_loglevel_str_debug_process = "TRACE_DEBUG_PROCESS"; | |
82 | const char * const mi_lttng_loglevel_str_debug_program = "TRACE_DEBUG_PROGRAM"; | |
83 | const char * const mi_lttng_loglevel_str_debug_system = "TRACE_DEBUG_SYSTEM"; | |
84 | const char * const mi_lttng_loglevel_str_debug_unit = "TRACE_DEBUG_UNIT"; | |
85 | const char * const mi_lttng_loglevel_str_emerg = "TRACE_EMERG"; | |
86 | const char * const mi_lttng_loglevel_str_err = "TRACE_ERR"; | |
87 | const char * const mi_lttng_loglevel_str_info = "TRACE_INFO"; | |
88 | const char * const mi_lttng_loglevel_str_notice = "TRACE_NOTICE"; | |
89 | const char * const mi_lttng_loglevel_str_unknown = "UNKNOWN"; | |
90 | const char * const mi_lttng_loglevel_str_warning = "TRACE_WARNING"; | |
91 | ||
1734c658 | 92 | /* String related to loglevel type */ |
5e18ec73 JR |
93 | const char * const mi_lttng_loglevel_type_all = "ALL"; |
94 | const char * const mi_lttng_loglevel_type_range = "RANGE"; | |
95 | const char * const mi_lttng_loglevel_type_single = "SINGLE"; | |
96 | const char * const mi_lttng_loglevel_type_unknown = "UNKNOWN"; | |
97 | ||
98 | const char * const mi_lttng_element_empty = ""; | |
99 | ||
100 | const char *mi_lttng_loglevel_string(int value) | |
101 | { | |
102 | switch (value) { | |
103 | case -1: | |
104 | return mi_lttng_element_empty; | |
105 | case LTTNG_LOGLEVEL_EMERG: | |
106 | return mi_lttng_loglevel_str_emerg; | |
107 | case LTTNG_LOGLEVEL_ALERT: | |
108 | return mi_lttng_loglevel_str_alert; | |
109 | case LTTNG_LOGLEVEL_CRIT: | |
110 | return mi_lttng_loglevel_str_crit; | |
111 | case LTTNG_LOGLEVEL_ERR: | |
112 | return mi_lttng_loglevel_str_err; | |
113 | case LTTNG_LOGLEVEL_WARNING: | |
114 | return mi_lttng_loglevel_str_warning; | |
115 | case LTTNG_LOGLEVEL_NOTICE: | |
116 | return mi_lttng_loglevel_str_notice; | |
117 | case LTTNG_LOGLEVEL_INFO: | |
118 | return mi_lttng_loglevel_str_info; | |
119 | case LTTNG_LOGLEVEL_DEBUG_SYSTEM: | |
120 | return mi_lttng_loglevel_str_debug_system; | |
121 | case LTTNG_LOGLEVEL_DEBUG_PROGRAM: | |
122 | return mi_lttng_loglevel_str_debug_program; | |
123 | case LTTNG_LOGLEVEL_DEBUG_PROCESS: | |
124 | return mi_lttng_loglevel_str_debug_process; | |
125 | case LTTNG_LOGLEVEL_DEBUG_MODULE: | |
126 | return mi_lttng_loglevel_str_debug_module; | |
127 | case LTTNG_LOGLEVEL_DEBUG_UNIT: | |
128 | return mi_lttng_loglevel_str_debug_unit; | |
129 | case LTTNG_LOGLEVEL_DEBUG_FUNCTION: | |
130 | return mi_lttng_loglevel_str_debug_function; | |
131 | case LTTNG_LOGLEVEL_DEBUG_LINE: | |
132 | return mi_lttng_loglevel_str_debug_line; | |
133 | case LTTNG_LOGLEVEL_DEBUG: | |
134 | return mi_lttng_loglevel_str_debug; | |
135 | default: | |
136 | return mi_lttng_loglevel_str_unknown; | |
137 | } | |
138 | } | |
139 | ||
140 | const char *mi_lttng_logleveltype_string(enum lttng_loglevel_type value) | |
141 | { | |
142 | switch (value) { | |
143 | case LTTNG_EVENT_LOGLEVEL_ALL: | |
144 | return mi_lttng_loglevel_type_all; | |
145 | case LTTNG_EVENT_LOGLEVEL_RANGE: | |
146 | return mi_lttng_loglevel_type_range; | |
147 | case LTTNG_EVENT_LOGLEVEL_SINGLE: | |
148 | return mi_lttng_loglevel_type_single; | |
149 | default: | |
150 | return mi_lttng_loglevel_type_unknown; | |
151 | } | |
152 | } | |
153 | ||
154 | const char *mi_lttng_eventtype_string(enum lttng_event_type value) | |
155 | { | |
156 | switch (value) { | |
157 | case LTTNG_EVENT_ALL: | |
158 | return config_event_type_all; | |
159 | case LTTNG_EVENT_TRACEPOINT: | |
160 | return config_event_type_tracepoint; | |
161 | case LTTNG_EVENT_PROBE: | |
162 | return config_event_type_probe; | |
163 | case LTTNG_EVENT_FUNCTION: | |
164 | return config_event_type_function; | |
165 | case LTTNG_EVENT_FUNCTION_ENTRY: | |
166 | return config_event_type_function_entry; | |
167 | case LTTNG_EVENT_SYSCALL: | |
168 | return config_event_type_syscall; | |
169 | case LTTNG_EVENT_NOOP: | |
170 | return config_event_type_noop; | |
171 | default: | |
172 | return mi_lttng_element_empty; | |
173 | } | |
174 | } | |
175 | ||
176 | const char *mi_lttng_eventfieldtype_string(enum lttng_event_field_type val) | |
177 | { | |
178 | switch (val) { | |
179 | case(LTTNG_EVENT_FIELD_INTEGER): | |
180 | return mi_lttng_element_type_integer; | |
181 | case(LTTNG_EVENT_FIELD_ENUM): | |
182 | return mi_lttng_element_type_enum; | |
183 | case(LTTNG_EVENT_FIELD_FLOAT): | |
184 | return mi_lttng_element_type_float; | |
185 | case(LTTNG_EVENT_FIELD_STRING): | |
186 | return mi_lttng_element_type_string; | |
187 | default: | |
188 | return mi_lttng_element_type_other; | |
189 | } | |
190 | } | |
191 | ||
192 | const char *mi_lttng_domaintype_string(enum lttng_domain_type value) | |
193 | { | |
194 | /* Note: This is a *duplicate* of get_domain_str from bin/lttng/utils.c */ | |
195 | switch (value) { | |
196 | case LTTNG_DOMAIN_KERNEL: | |
197 | return config_domain_type_kernel; | |
198 | case LTTNG_DOMAIN_UST: | |
199 | return config_domain_type_ust; | |
200 | case LTTNG_DOMAIN_JUL: | |
201 | return config_domain_type_jul; | |
202 | default: | |
203 | /* Should not have an unknown domain */ | |
204 | assert(0); | |
205 | } | |
206 | } | |
207 | ||
208 | const char *mi_lttng_buffertype_string(enum lttng_buffer_type value) | |
209 | { | |
210 | switch (value) { | |
211 | case LTTNG_BUFFER_PER_PID: | |
212 | return config_buffer_type_per_pid; | |
213 | case LTTNG_BUFFER_PER_UID: | |
214 | return config_buffer_type_per_uid; | |
215 | case LTTNG_BUFFER_GLOBAL: | |
216 | return config_buffer_type_global; | |
217 | default: | |
218 | /* Should not have an unknow buffer type */ | |
219 | assert(0); | |
220 | } | |
221 | } | |
222 | ||
c7e35b03 JR |
223 | LTTNG_HIDDEN |
224 | struct mi_writer *mi_lttng_writer_create(int fd_output, int mi_output_type) | |
225 | { | |
226 | struct mi_writer *mi_writer; | |
227 | ||
228 | mi_writer = zmalloc(sizeof(struct mi_writer)); | |
229 | if (!mi_writer) { | |
230 | PERROR("zmalloc mi_writer_create"); | |
231 | goto end; | |
232 | } | |
233 | if (mi_output_type == LTTNG_MI_XML) { | |
234 | mi_writer->writer = config_writer_create(fd_output); | |
235 | if (!mi_writer->writer) { | |
236 | goto err_destroy; | |
237 | } | |
238 | mi_writer->type = LTTNG_MI_XML; | |
239 | } else { | |
240 | goto err_destroy; | |
241 | } | |
242 | ||
243 | end: | |
244 | return mi_writer; | |
245 | ||
246 | err_destroy: | |
247 | free(mi_writer); | |
248 | return NULL; | |
249 | } | |
250 | ||
251 | LTTNG_HIDDEN | |
252 | int mi_lttng_writer_destroy(struct mi_writer *writer) | |
253 | { | |
254 | int ret; | |
255 | ||
256 | if (!writer) { | |
257 | ret = -EINVAL; | |
258 | goto end; | |
259 | } | |
260 | ||
261 | ret = config_writer_destroy(writer->writer); | |
262 | if (ret < 0) { | |
263 | goto end; | |
264 | } | |
265 | ||
266 | free(writer); | |
267 | end: | |
268 | return ret; | |
269 | } | |
270 | ||
271 | LTTNG_HIDDEN | |
272 | int mi_lttng_writer_command_open(struct mi_writer *writer, const char *command) | |
273 | { | |
274 | int ret; | |
275 | ||
276 | ret = mi_lttng_writer_open_element(writer, mi_lttng_element_command); | |
277 | if (ret) { | |
278 | goto end; | |
279 | } | |
280 | ret = mi_lttng_writer_write_element_string(writer, | |
281 | mi_lttng_element_command_name, command); | |
282 | end: | |
283 | return ret; | |
284 | } | |
285 | ||
286 | LTTNG_HIDDEN | |
287 | int mi_lttng_writer_command_close(struct mi_writer *writer) | |
288 | { | |
289 | return mi_lttng_writer_close_element(writer); | |
290 | } | |
291 | ||
292 | LTTNG_HIDDEN | |
293 | int mi_lttng_writer_open_element(struct mi_writer *writer, | |
294 | const char *element_name) | |
295 | { | |
296 | return config_writer_open_element(writer->writer, element_name); | |
297 | } | |
298 | ||
299 | LTTNG_HIDDEN | |
300 | int mi_lttng_writer_close_element(struct mi_writer *writer) | |
301 | { | |
302 | return config_writer_close_element(writer->writer); | |
303 | } | |
304 | ||
5e18ec73 JR |
305 | LTTNG_HIDDEN |
306 | int mi_lttng_close_multi_element(struct mi_writer *writer, | |
307 | unsigned int nb_element) | |
308 | { | |
309 | int ret, i; | |
310 | ||
311 | if (nb_element < 1) { | |
312 | ret = 0; | |
313 | goto end; | |
314 | } | |
315 | for (i = 0; i < nb_element; i++) { | |
316 | ret = mi_lttng_writer_close_element(writer); | |
317 | if (ret) { | |
318 | goto end; | |
319 | } | |
320 | } | |
321 | end: | |
322 | return ret; | |
323 | } | |
324 | ||
c7e35b03 JR |
325 | LTTNG_HIDDEN |
326 | int mi_lttng_writer_write_element_unsigned_int(struct mi_writer *writer, | |
327 | const char *element_name, uint64_t value) | |
328 | { | |
329 | return config_writer_write_element_unsigned_int(writer->writer, | |
330 | element_name, value); | |
331 | } | |
332 | ||
333 | LTTNG_HIDDEN | |
334 | int mi_lttng_writer_write_element_signed_int(struct mi_writer *writer, | |
335 | const char *element_name, int64_t value) | |
336 | { | |
337 | return config_writer_write_element_signed_int(writer->writer, | |
338 | element_name, value); | |
339 | } | |
340 | ||
341 | LTTNG_HIDDEN | |
342 | int mi_lttng_writer_write_element_bool(struct mi_writer *writer, | |
343 | const char *element_name, int value) | |
344 | { | |
345 | return config_writer_write_element_bool(writer->writer, | |
346 | element_name, value); | |
347 | } | |
348 | ||
349 | LTTNG_HIDDEN | |
350 | int mi_lttng_writer_write_element_string(struct mi_writer *writer, | |
351 | const char *element_name, const char *value) | |
352 | { | |
353 | return config_writer_write_element_string(writer->writer, | |
354 | element_name, value); | |
355 | } | |
356 | ||
357 | LTTNG_HIDDEN | |
358 | int mi_lttng_version(struct mi_writer *writer, struct mi_lttng_version *version, | |
359 | const char *lttng_description, const char *lttng_license) | |
360 | { | |
361 | int ret; | |
362 | ||
363 | /* Open version */ | |
364 | ret = mi_lttng_writer_open_element(writer, mi_lttng_element_version); | |
365 | if (ret) { | |
366 | goto end; | |
367 | } | |
368 | ||
369 | /* Version string (contain info like rc etc.) */ | |
370 | ret = mi_lttng_writer_write_element_string(writer, | |
371 | mi_lttng_element_version_str, VERSION); | |
372 | if (ret) { | |
373 | goto end; | |
374 | } | |
375 | ||
376 | /* Major version number */ | |
377 | ret = mi_lttng_writer_write_element_unsigned_int(writer, | |
378 | mi_lttng_element_version_major, version->version_major); | |
379 | if (ret) { | |
380 | goto end; | |
381 | } | |
382 | ||
383 | /* Minor version number */ | |
384 | ret = mi_lttng_writer_write_element_unsigned_int(writer, | |
385 | mi_lttng_element_version_minor, version->version_minor); | |
386 | if (ret) { | |
387 | goto end; | |
388 | } | |
389 | ||
314d5222 JRJ |
390 | /* Commit version number */ |
391 | ret = mi_lttng_writer_write_element_string(writer, | |
392 | mi_lttng_element_version_commit, version->version_commit); | |
393 | if (ret) { | |
394 | goto end; | |
395 | } | |
396 | ||
c7e35b03 JR |
397 | /* Patch number */ |
398 | ret = mi_lttng_writer_write_element_unsigned_int(writer, | |
399 | mi_lttng_element_version_patch_level, version->version_patchlevel); | |
400 | if (ret) { | |
401 | goto end; | |
402 | } | |
403 | ||
404 | /* Name of the version */ | |
405 | ret = mi_lttng_writer_write_element_string(writer, | |
406 | config_element_name, version->version_name); | |
407 | if (ret) { | |
408 | goto end; | |
409 | } | |
410 | ||
411 | /* Description mostly related to beer... */ | |
412 | ret = mi_lttng_writer_write_element_string(writer, | |
413 | mi_lttng_element_version_description, lttng_description); | |
414 | if (ret) { | |
415 | goto end; | |
416 | } | |
417 | ||
418 | /* url */ | |
419 | ret = mi_lttng_writer_write_element_string(writer, | |
420 | mi_lttng_element_version_web, version->package_url); | |
421 | if (ret) { | |
422 | goto end; | |
423 | } | |
424 | ||
425 | /* License: free as in free beer...no...*speech* */ | |
426 | ret = mi_lttng_writer_write_element_string(writer, | |
427 | mi_lttng_element_version_license, lttng_license); | |
428 | if (ret) { | |
429 | goto end; | |
430 | } | |
431 | ||
432 | /* Close version element */ | |
433 | ret = mi_lttng_writer_close_element(writer); | |
434 | ||
435 | end: | |
436 | return ret; | |
437 | } | |
438 | ||
5e18ec73 JR |
439 | LTTNG_HIDDEN |
440 | int mi_lttng_sessions_open(struct mi_writer *writer) | |
441 | { | |
442 | return mi_lttng_writer_open_element(writer, config_element_sessions); | |
443 | } | |
444 | ||
c7e35b03 JR |
445 | LTTNG_HIDDEN |
446 | int mi_lttng_session(struct mi_writer *writer, | |
447 | struct lttng_session *session, int is_open) | |
448 | { | |
449 | int ret; | |
450 | ||
5e18ec73 JR |
451 | assert(session); |
452 | ||
453 | /* Open sessions element */ | |
c7e35b03 JR |
454 | ret = mi_lttng_writer_open_element(writer, |
455 | config_element_session); | |
456 | if (ret) { | |
457 | goto end; | |
458 | } | |
459 | ||
460 | /* Name of the session */ | |
461 | ret = mi_lttng_writer_write_element_string(writer, | |
462 | config_element_name, session->name); | |
463 | if (ret) { | |
464 | goto end; | |
465 | } | |
466 | ||
5e18ec73 | 467 | /* Path */ |
c7e35b03 JR |
468 | ret = mi_lttng_writer_write_element_string(writer, |
469 | config_element_path, session->path); | |
470 | if (ret) { | |
471 | goto end; | |
472 | } | |
473 | ||
5e18ec73 JR |
474 | /* Enabled ? */ |
475 | ret = mi_lttng_writer_write_element_bool(writer, | |
c7e35b03 JR |
476 | config_element_enabled, session->enabled); |
477 | if (ret) { | |
478 | goto end; | |
479 | } | |
480 | ||
5e18ec73 | 481 | /* Snapshot mode */ |
c7e35b03 JR |
482 | ret = mi_lttng_writer_write_element_unsigned_int(writer, |
483 | config_element_snapshot_mode, session->snapshot_mode); | |
484 | if (ret) { | |
485 | goto end; | |
486 | } | |
487 | ||
5e18ec73 | 488 | /* Live timer interval in usec */ |
c7e35b03 JR |
489 | ret = mi_lttng_writer_write_element_unsigned_int(writer, |
490 | config_element_live_timer_interval, | |
491 | session->live_timer_interval); | |
492 | if (ret) { | |
493 | goto end; | |
494 | } | |
495 | ||
496 | if (!is_open) { | |
497 | /* Closing session element */ | |
498 | ret = mi_lttng_writer_close_element(writer); | |
499 | } | |
500 | end: | |
501 | return ret; | |
502 | ||
503 | } | |
5e18ec73 JR |
504 | |
505 | LTTNG_HIDDEN | |
506 | int mi_lttng_domains_open(struct mi_writer *writer) | |
507 | { | |
508 | return mi_lttng_writer_open_element(writer, config_element_domains); | |
509 | } | |
510 | ||
511 | LTTNG_HIDDEN | |
512 | int mi_lttng_domain(struct mi_writer *writer, | |
513 | struct lttng_domain *domain, int is_open) | |
514 | { | |
515 | int ret = 0; | |
516 | const char *str_domain; | |
517 | const char *str_buffer; | |
518 | ||
519 | assert(domain); | |
520 | ||
521 | /* Open domain element */ | |
522 | ret = mi_lttng_writer_open_element(writer, config_element_domain); | |
523 | if (ret) { | |
524 | goto end; | |
525 | } | |
526 | ||
527 | /* Domain Type */ | |
528 | str_domain = mi_lttng_domaintype_string(domain->type); | |
529 | ret = mi_lttng_writer_write_element_string(writer, config_element_type, | |
530 | str_domain); | |
531 | if (ret) { | |
532 | goto end; | |
533 | } | |
534 | ||
535 | /* Buffer Type */ | |
536 | str_buffer= mi_lttng_buffertype_string(domain->buf_type); | |
537 | ret = mi_lttng_writer_write_element_string(writer, | |
538 | config_element_buffer_type, str_buffer); | |
539 | if (ret) { | |
540 | goto end; | |
541 | } | |
542 | ||
543 | /* TODO: attr... not sure how to use the union.... */ | |
544 | ||
545 | if (!is_open) { | |
546 | /* Closing domain element */ | |
547 | ret = mi_lttng_writer_close_element(writer); | |
548 | } | |
549 | ||
550 | end: | |
551 | return ret; | |
552 | ||
553 | } | |
554 | ||
555 | LTTNG_HIDDEN | |
556 | int mi_lttng_channels_open(struct mi_writer *writer) | |
557 | { | |
558 | return mi_lttng_writer_open_element(writer, config_element_channels); | |
559 | } | |
560 | ||
561 | LTTNG_HIDDEN | |
562 | int mi_lttng_channel(struct mi_writer *writer, | |
563 | struct lttng_channel *channel, int is_open) | |
564 | { | |
565 | int ret = 0; | |
566 | ||
567 | assert(channel); | |
568 | ||
569 | /* Opening channel element */ | |
570 | ret = mi_lttng_writer_open_element(writer, config_element_channel); | |
571 | if (ret) { | |
572 | goto end; | |
573 | } | |
574 | ||
575 | /* Name */ | |
576 | ret = mi_lttng_writer_write_element_string(writer, config_element_name, | |
577 | channel->name); | |
578 | if (ret) { | |
579 | goto end; | |
580 | } | |
581 | ||
582 | /* Enabled ? */ | |
583 | ret = mi_lttng_writer_write_element_bool(writer, | |
584 | config_element_enabled, channel->enabled); | |
585 | if (ret) { | |
586 | goto end; | |
587 | } | |
588 | ||
589 | /* Attribute */ | |
590 | ret = mi_lttng_channel_attr(writer, &channel->attr); | |
591 | if (ret) { | |
592 | goto end; | |
593 | } | |
594 | ||
595 | if (!is_open) { | |
596 | /* Closing channel element */ | |
597 | ret = mi_lttng_writer_close_element(writer); | |
598 | if (ret) { | |
599 | goto end; | |
600 | } | |
601 | } | |
602 | end: | |
603 | return ret; | |
604 | } | |
605 | ||
606 | LTTNG_HIDDEN | |
607 | int mi_lttng_channel_attr(struct mi_writer *writer, | |
608 | struct lttng_channel_attr *attr) | |
609 | { | |
610 | int ret = 0; | |
611 | ||
612 | assert(attr); | |
613 | ||
614 | /* Opening Attributes */ | |
615 | ret = mi_lttng_writer_open_element(writer, config_element_attributes); | |
616 | if (ret) { | |
617 | goto end; | |
618 | } | |
619 | ||
620 | /* Overwrite */ | |
621 | ret = mi_lttng_writer_write_element_string(writer, | |
622 | config_element_overwrite_mode, | |
623 | attr->overwrite ? config_overwrite_mode_overwrite : | |
624 | config_overwrite_mode_discard); | |
625 | if (ret) { | |
626 | goto end; | |
627 | } | |
628 | ||
629 | /* Sub buffer size in byte */ | |
630 | ret = mi_lttng_writer_write_element_unsigned_int(writer, | |
631 | config_element_subbuf_size, attr->subbuf_size); | |
632 | if (ret) { | |
633 | goto end; | |
634 | } | |
635 | ||
636 | /* Number of subbuffer (power of two) */ | |
637 | ret = mi_lttng_writer_write_element_unsigned_int(writer, | |
638 | config_element_num_subbuf, | |
639 | attr->num_subbuf); | |
640 | if (ret) { | |
641 | goto end; | |
642 | } | |
643 | ||
644 | /* Switch timer interval in usec */ | |
645 | ret = mi_lttng_writer_write_element_unsigned_int(writer, | |
646 | config_element_switch_timer_interval, | |
647 | attr->switch_timer_interval); | |
648 | if (ret) { | |
649 | goto end; | |
650 | } | |
651 | ||
652 | /* Read timer interval in usec */ | |
653 | ret = mi_lttng_writer_write_element_unsigned_int(writer, | |
654 | config_element_read_timer_interval, | |
655 | attr->read_timer_interval); | |
656 | if (ret) { | |
657 | goto end; | |
658 | } | |
659 | ||
660 | /* Event output */ | |
661 | ret = mi_lttng_writer_write_element_string(writer, | |
662 | config_element_output_type, | |
663 | attr->output == LTTNG_EVENT_SPLICE ? | |
664 | config_output_type_splice : config_output_type_mmap); | |
665 | if (ret) { | |
666 | goto end; | |
667 | } | |
668 | ||
669 | /* Tracefile size in bytes */ | |
670 | ret = mi_lttng_writer_write_element_unsigned_int(writer, | |
671 | config_element_tracefile_size, attr->tracefile_size); | |
672 | if (ret) { | |
673 | goto end; | |
674 | } | |
675 | ||
676 | /* Count of tracefiles */ | |
677 | ret = mi_lttng_writer_write_element_unsigned_int(writer, | |
678 | config_element_tracefile_count, | |
679 | attr->tracefile_count); | |
680 | if (ret) { | |
681 | goto end; | |
682 | } | |
683 | ||
684 | /* Live timer interval in usec*/ | |
685 | ret = mi_lttng_writer_write_element_unsigned_int(writer, | |
686 | config_element_live_timer_interval, | |
687 | attr->live_timer_interval); | |
688 | if (ret) { | |
689 | goto end; | |
690 | } | |
691 | ||
692 | /* Closing attributes */ | |
693 | ret = mi_lttng_writer_close_element(writer); | |
694 | if (ret) { | |
695 | goto end; | |
696 | } | |
697 | end: | |
698 | return ret; | |
699 | ||
700 | } | |
701 | ||
702 | LTTNG_HIDDEN | |
703 | int mi_lttng_event_common_attributes(struct mi_writer *writer, | |
704 | struct lttng_event *event) | |
705 | { | |
706 | int ret; | |
707 | ||
708 | /* Open event element */ | |
709 | ret = mi_lttng_writer_open_element(writer, config_element_event); | |
710 | if (ret) { | |
711 | goto end; | |
712 | } | |
713 | ||
714 | /* event name */ | |
715 | ret = mi_lttng_writer_write_element_string(writer, | |
716 | config_element_name, event->name); | |
717 | if (ret) { | |
718 | goto end; | |
719 | } | |
720 | ||
721 | /* event type */ | |
722 | ret = mi_lttng_writer_write_element_string(writer, | |
723 | config_element_type, mi_lttng_eventtype_string(event->type)); | |
724 | if (ret) { | |
725 | goto end; | |
726 | } | |
727 | ||
728 | /* is event enabled */ | |
729 | ret = mi_lttng_writer_write_element_bool(writer, | |
730 | config_element_enabled, event->enabled); | |
731 | if (ret) { | |
732 | goto end; | |
733 | } | |
734 | ||
735 | /* event filter enabled? */ | |
736 | ret = mi_lttng_writer_write_element_bool(writer, | |
737 | config_element_filter, event->filter); | |
738 | ||
739 | end: | |
740 | return ret; | |
741 | } | |
742 | ||
743 | LTTNG_HIDDEN | |
744 | int mi_lttng_event_tracepoint_loglevel(struct mi_writer *writer, | |
745 | struct lttng_event *event) | |
746 | { | |
747 | int ret; | |
748 | ||
749 | /* event loglevel */ | |
750 | ret = mi_lttng_writer_write_element_string(writer, | |
751 | config_element_loglevel, mi_lttng_loglevel_string(event->loglevel)); | |
752 | if (ret) { | |
753 | goto end; | |
754 | } | |
755 | ||
756 | ret = mi_lttng_writer_write_element_string(writer, | |
757 | config_element_loglevel_type, | |
758 | mi_lttng_logleveltype_string(event->loglevel_type)); | |
759 | if (ret) { | |
760 | goto end; | |
761 | } | |
762 | ||
763 | /* event exclusion filter */ | |
764 | ret = mi_lttng_writer_write_element_bool(writer, | |
765 | config_element_exclusion, event->exclusion); | |
766 | if (ret) { | |
767 | goto end; | |
768 | } | |
769 | ||
770 | end: | |
771 | return ret; | |
772 | } | |
773 | ||
774 | LTTNG_HIDDEN | |
775 | int mi_lttng_event_tracepoint_no_loglevel(struct mi_writer *writer, | |
776 | struct lttng_event *event) | |
777 | { | |
778 | /* event exclusion filter */ | |
779 | return mi_lttng_writer_write_element_bool(writer, | |
780 | config_element_exclusion, event->exclusion); | |
781 | } | |
782 | ||
783 | LTTNG_HIDDEN | |
784 | int mi_lttng_event_function_probe(struct mi_writer *writer, | |
785 | struct lttng_event *event) | |
786 | { | |
787 | int ret; | |
788 | ||
789 | if (event->attr.probe.addr != 0) { | |
790 | /* event probe address */ | |
791 | ret = mi_lttng_writer_write_element_unsigned_int(writer, | |
792 | config_element_address, event->attr.probe.addr); | |
793 | if (ret) { | |
794 | goto end; | |
795 | } | |
796 | } else { | |
797 | /* event probe offset */ | |
798 | ret = mi_lttng_writer_write_element_unsigned_int(writer, | |
799 | config_element_offset, event->attr.probe.offset); | |
800 | if (ret) { | |
801 | goto end; | |
802 | } | |
803 | ||
804 | /* event probe symbol_name */ | |
805 | ret = mi_lttng_writer_write_element_string(writer, | |
806 | config_element_symbol_name, event->attr.probe.symbol_name); | |
807 | if (ret) { | |
808 | goto end; | |
809 | } | |
810 | } | |
811 | end: | |
812 | return ret; | |
813 | } | |
814 | ||
815 | LTTNG_HIDDEN | |
816 | int mi_lttng_event_function_entry(struct mi_writer *writer, | |
817 | struct lttng_event *event) | |
818 | { | |
819 | /* event probe symbol_name */ | |
820 | return mi_lttng_writer_write_element_string(writer, | |
821 | config_element_symbol_name, event->attr.ftrace.symbol_name); | |
822 | } | |
823 | ||
824 | LTTNG_HIDDEN | |
825 | int mi_lttng_events_open(struct mi_writer *writer) | |
826 | { | |
827 | return mi_lttng_writer_open_element(writer, config_element_events); | |
828 | } | |
829 | ||
830 | LTTNG_HIDDEN | |
831 | int mi_lttng_event(struct mi_writer *writer, | |
832 | struct lttng_event *event, int is_open) | |
833 | { | |
834 | int ret; | |
835 | ||
836 | ret = mi_lttng_event_common_attributes(writer, event); | |
837 | if (ret) { | |
838 | goto end; | |
839 | } | |
840 | ||
841 | switch (event->type) { | |
842 | case LTTNG_EVENT_ALL: | |
843 | /* We should never have "all" events in list. */ | |
844 | assert(0); | |
845 | break; | |
846 | case LTTNG_EVENT_TRACEPOINT: | |
847 | { | |
848 | if (event->loglevel != -1) { | |
849 | ret = mi_lttng_event_tracepoint_loglevel(writer, event); | |
850 | } else { | |
851 | ret = mi_lttng_event_tracepoint_no_loglevel(writer, event); | |
852 | } | |
853 | break; | |
854 | } | |
855 | case LTTNG_EVENT_PROBE: | |
856 | ret = mi_lttng_event_function_probe(writer, event); | |
857 | break; | |
858 | case LTTNG_EVENT_FUNCTION_ENTRY: | |
859 | ret = mi_lttng_event_function_entry(writer, event); | |
860 | break; | |
861 | default: | |
862 | break; | |
863 | } | |
864 | ||
865 | if (!is_open) { | |
866 | ret = mi_lttng_writer_close_element(writer); | |
867 | } | |
868 | ||
869 | end: | |
870 | return ret; | |
871 | } | |
872 | ||
873 | LTTNG_HIDDEN | |
874 | int mi_lttng_pids_open(struct mi_writer *writer) | |
875 | { | |
876 | return mi_lttng_writer_open_element(writer, mi_lttng_element_pids); | |
877 | } | |
878 | ||
879 | LTTNG_HIDDEN | |
880 | int mi_lttng_pid(struct mi_writer *writer, pid_t pid , const char *cmdline, | |
881 | int is_open) | |
882 | { | |
883 | int ret; | |
884 | ||
885 | /* Open element pid */ | |
886 | ret = mi_lttng_writer_open_element(writer, mi_lttng_element_pid); | |
887 | if (ret) { | |
888 | goto end; | |
889 | } | |
890 | ||
891 | /* Writing pid number */ | |
892 | ret = mi_lttng_writer_write_element_signed_int(writer, | |
893 | mi_lttng_element_pid_id, (int)pid); | |
894 | if (ret) { | |
895 | goto end; | |
896 | } | |
897 | ||
898 | /* Writing name of the process */ | |
899 | ret = mi_lttng_writer_write_element_string(writer, config_element_name, | |
900 | cmdline); | |
901 | if (ret) { | |
902 | goto end; | |
903 | } | |
904 | ||
905 | if (!is_open) { | |
906 | /* Closing Pid */ | |
907 | ret = mi_lttng_writer_close_element(writer); | |
908 | } | |
909 | ||
910 | end: | |
911 | return ret; | |
912 | } | |
913 | ||
914 | LTTNG_HIDDEN | |
915 | int mi_lttng_event_fields_open(struct mi_writer *writer) | |
916 | { | |
917 | return mi_lttng_writer_open_element(writer, mi_lttng_element_event_fields); | |
918 | } | |
919 | ||
920 | LTTNG_HIDDEN | |
921 | int mi_lttng_event_field(struct mi_writer *writer, | |
922 | struct lttng_event_field *field) | |
923 | { | |
924 | int ret; | |
925 | ||
926 | if (!field->field_name[0]) { | |
927 | /* To Review: not sure if legal david ? | |
928 | * how should this be handle ? | |
929 | */ | |
930 | ret = 0; | |
931 | goto end; | |
932 | } | |
933 | ||
934 | /* Open field */ | |
935 | ret = mi_lttng_writer_open_element(writer, mi_lttng_element_event_field); | |
936 | if (ret) { | |
937 | goto end; | |
938 | } | |
939 | ||
940 | if (!field->field_name[0]) { | |
941 | goto close; | |
942 | } | |
943 | ||
944 | /* Name */ | |
945 | ret = mi_lttng_writer_write_element_string(writer, config_element_name, | |
946 | field->field_name); | |
947 | if (ret) { | |
948 | goto end; | |
949 | } | |
950 | ||
951 | /* Type */ | |
952 | ret = mi_lttng_writer_write_element_string(writer, config_element_type, | |
953 | mi_lttng_eventfieldtype_string(field->type)); | |
954 | if (ret) { | |
955 | goto end; | |
956 | } | |
957 | ||
958 | /* nowrite */ | |
959 | ret = mi_lttng_writer_write_element_signed_int(writer, | |
960 | mi_lttng_element_nowrite, field->nowrite); | |
961 | if (ret) { | |
962 | goto end; | |
963 | } | |
964 | ||
965 | close: | |
966 | /* Close field element */ | |
967 | ret = mi_lttng_writer_close_element(writer); | |
968 | ||
969 | end: | |
970 | return ret; | |
971 | } |