Commit | Line | Data |
---|---|---|
c19092cd | 1 | /* |
ab5be9fa | 2 | * Copyright (C) 2017 Jérémie Galarneau <jeremie.galarneau@efficios.com> |
c19092cd | 3 | * |
ab5be9fa | 4 | * SPDX-License-Identifier: LGPL-2.1-only |
c19092cd | 5 | * |
c19092cd JG |
6 | */ |
7 | ||
6a751b95 JR |
8 | #include <common/error.h> |
9 | #include <common/macros.h> | |
10 | #include <common/mi-lttng.h> | |
c19092cd JG |
11 | #include <lttng/condition/condition-internal.h> |
12 | #include <lttng/condition/session-rotation-internal.h> | |
13 | #include <lttng/location-internal.h> | |
c19092cd JG |
14 | #include <stdbool.h> |
15 | ||
16 | static | |
17 | bool lttng_condition_session_rotation_validate( | |
18 | const struct lttng_condition *condition); | |
19 | static | |
20 | int lttng_condition_session_rotation_serialize( | |
21 | const struct lttng_condition *condition, | |
c0a66c84 | 22 | struct lttng_payload *payload); |
c19092cd JG |
23 | static |
24 | bool lttng_condition_session_rotation_is_equal(const struct lttng_condition *_a, | |
25 | const struct lttng_condition *_b); | |
26 | static | |
27 | void lttng_condition_session_rotation_destroy( | |
28 | struct lttng_condition *condition); | |
29 | ||
6a751b95 JR |
30 | static |
31 | enum lttng_error_code lttng_condition_session_rotation_mi_serialize( | |
32 | const struct lttng_condition *condition, | |
33 | struct mi_writer *writer); | |
34 | ||
c19092cd JG |
35 | static const |
36 | struct lttng_condition rotation_condition_template = { | |
a6bc4ca9 SM |
37 | {}, |
38 | LTTNG_CONDITION_TYPE_UNKNOWN, /* type unset, shall be set on creation. */ | |
39 | lttng_condition_session_rotation_validate, | |
40 | lttng_condition_session_rotation_serialize, | |
41 | lttng_condition_session_rotation_is_equal, | |
42 | lttng_condition_session_rotation_destroy, | |
43 | lttng_condition_session_rotation_mi_serialize, | |
c19092cd JG |
44 | }; |
45 | ||
46 | static | |
47 | int lttng_evaluation_session_rotation_serialize( | |
48 | const struct lttng_evaluation *evaluation, | |
c0a66c84 | 49 | struct lttng_payload *payload); |
c19092cd JG |
50 | static |
51 | void lttng_evaluation_session_rotation_destroy( | |
52 | struct lttng_evaluation *evaluation); | |
53 | ||
54 | static const | |
55 | struct lttng_evaluation rotation_evaluation_template = { | |
a6bc4ca9 SM |
56 | LTTNG_CONDITION_TYPE_UNKNOWN, /* type unset, shall be set on creation. */ |
57 | lttng_evaluation_session_rotation_serialize, | |
58 | lttng_evaluation_session_rotation_destroy, | |
c19092cd JG |
59 | }; |
60 | ||
61 | static | |
62 | bool is_rotation_condition(const struct lttng_condition *condition) | |
63 | { | |
64 | enum lttng_condition_type type = lttng_condition_get_type(condition); | |
65 | ||
66 | return type == LTTNG_CONDITION_TYPE_SESSION_ROTATION_ONGOING || | |
67 | type == LTTNG_CONDITION_TYPE_SESSION_ROTATION_COMPLETED; | |
68 | } | |
69 | ||
70 | static | |
71 | bool is_rotation_evaluation(const struct lttng_evaluation *evaluation) | |
72 | { | |
73 | enum lttng_condition_type type = lttng_evaluation_get_type(evaluation); | |
74 | ||
75 | return type == LTTNG_CONDITION_TYPE_SESSION_ROTATION_ONGOING || | |
76 | type == LTTNG_CONDITION_TYPE_SESSION_ROTATION_COMPLETED; | |
77 | } | |
78 | ||
79 | static | |
80 | bool lttng_condition_session_rotation_validate( | |
81 | const struct lttng_condition *condition) | |
82 | { | |
83 | bool valid = false; | |
84 | struct lttng_condition_session_rotation *rotation; | |
85 | ||
86 | if (!condition) { | |
87 | goto end; | |
88 | } | |
89 | ||
90 | rotation = container_of(condition, | |
91 | struct lttng_condition_session_rotation, parent); | |
92 | if (!rotation->session_name) { | |
93 | ERR("Invalid session rotation condition: a target session name must be set."); | |
94 | goto end; | |
95 | } | |
96 | ||
97 | valid = true; | |
98 | end: | |
99 | return valid; | |
100 | } | |
101 | ||
102 | static | |
103 | int lttng_condition_session_rotation_serialize( | |
104 | const struct lttng_condition *condition, | |
c0a66c84 | 105 | struct lttng_payload *payload) |
c19092cd JG |
106 | { |
107 | int ret; | |
108 | size_t session_name_len; | |
109 | struct lttng_condition_session_rotation *rotation; | |
110 | struct lttng_condition_session_rotation_comm rotation_comm; | |
111 | ||
112 | if (!condition || !is_rotation_condition(condition)) { | |
113 | ret = -1; | |
114 | goto end; | |
115 | } | |
116 | ||
117 | DBG("Serializing session rotation condition"); | |
118 | rotation = container_of(condition, struct lttng_condition_session_rotation, | |
119 | parent); | |
120 | ||
121 | session_name_len = strlen(rotation->session_name) + 1; | |
122 | if (session_name_len > LTTNG_NAME_MAX) { | |
123 | ret = -1; | |
124 | goto end; | |
125 | } | |
126 | ||
127 | rotation_comm.session_name_len = session_name_len; | |
c0a66c84 | 128 | ret = lttng_dynamic_buffer_append(&payload->buffer, &rotation_comm, |
c19092cd JG |
129 | sizeof(rotation_comm)); |
130 | if (ret) { | |
131 | goto end; | |
132 | } | |
c0a66c84 JG |
133 | ret = lttng_dynamic_buffer_append(&payload->buffer, |
134 | rotation->session_name, session_name_len); | |
c19092cd JG |
135 | if (ret) { |
136 | goto end; | |
137 | } | |
138 | end: | |
139 | return ret; | |
140 | } | |
141 | ||
142 | static | |
143 | bool lttng_condition_session_rotation_is_equal(const struct lttng_condition *_a, | |
144 | const struct lttng_condition *_b) | |
145 | { | |
146 | bool is_equal = false; | |
147 | struct lttng_condition_session_rotation *a, *b; | |
148 | ||
149 | a = container_of(_a, struct lttng_condition_session_rotation, parent); | |
150 | b = container_of(_b, struct lttng_condition_session_rotation, parent); | |
151 | ||
152 | /* Both session names must be set or both must be unset. */ | |
153 | if ((a->session_name && !b->session_name) || | |
154 | (!a->session_name && b->session_name)) { | |
155 | WARN("Comparing session rotation conditions with uninitialized session names."); | |
156 | goto end; | |
157 | } | |
158 | ||
159 | if (a->session_name && b->session_name && | |
160 | strcmp(a->session_name, b->session_name)) { | |
161 | goto end; | |
162 | } | |
163 | ||
164 | is_equal = true; | |
165 | end: | |
166 | return is_equal; | |
167 | } | |
168 | ||
169 | static | |
170 | void lttng_condition_session_rotation_destroy( | |
171 | struct lttng_condition *condition) | |
172 | { | |
173 | struct lttng_condition_session_rotation *rotation; | |
174 | ||
175 | rotation = container_of(condition, | |
176 | struct lttng_condition_session_rotation, parent); | |
177 | ||
178 | free(rotation->session_name); | |
179 | free(rotation); | |
180 | } | |
181 | ||
182 | static | |
183 | struct lttng_condition *lttng_condition_session_rotation_create( | |
184 | enum lttng_condition_type type) | |
185 | { | |
186 | struct lttng_condition_session_rotation *condition; | |
187 | ||
a6bc4ca9 | 188 | condition = (lttng_condition_session_rotation *) zmalloc(sizeof(struct lttng_condition_session_rotation)); |
c19092cd JG |
189 | if (!condition) { |
190 | return NULL; | |
191 | } | |
192 | ||
193 | memcpy(&condition->parent, &rotation_condition_template, | |
a38478c9 | 194 | sizeof(condition->parent)); |
c19092cd JG |
195 | lttng_condition_init(&condition->parent, type); |
196 | return &condition->parent; | |
197 | } | |
198 | ||
199 | struct lttng_condition *lttng_condition_session_rotation_ongoing_create(void) | |
200 | { | |
201 | return lttng_condition_session_rotation_create( | |
202 | LTTNG_CONDITION_TYPE_SESSION_ROTATION_ONGOING); | |
203 | } | |
204 | ||
205 | struct lttng_condition *lttng_condition_session_rotation_completed_create(void) | |
206 | { | |
207 | return lttng_condition_session_rotation_create( | |
208 | LTTNG_CONDITION_TYPE_SESSION_ROTATION_COMPLETED); | |
209 | } | |
210 | ||
211 | static | |
c0a66c84 JG |
212 | ssize_t init_condition_from_payload(struct lttng_condition *condition, |
213 | struct lttng_payload_view *src_view) | |
c19092cd JG |
214 | { |
215 | ssize_t ret, condition_size; | |
216 | enum lttng_condition_status status; | |
c19092cd JG |
217 | const char *session_name; |
218 | struct lttng_buffer_view name_view; | |
3e6e0df2 JG |
219 | const struct lttng_condition_session_rotation_comm *condition_comm; |
220 | struct lttng_payload_view condition_comm_view = | |
221 | lttng_payload_view_from_view( | |
222 | src_view, 0, sizeof(*condition_comm)); | |
c19092cd | 223 | |
3e6e0df2 | 224 | if (!lttng_payload_view_is_valid(&condition_comm_view)) { |
c19092cd JG |
225 | ERR("Failed to initialize from malformed condition buffer: buffer too short to contain header"); |
226 | ret = -1; | |
227 | goto end; | |
228 | } | |
229 | ||
c0a66c84 JG |
230 | condition_comm = (typeof(condition_comm)) src_view->buffer.data; |
231 | name_view = lttng_buffer_view_from_view(&src_view->buffer, | |
3e6e0df2 | 232 | sizeof(*condition_comm), condition_comm->session_name_len); |
c19092cd | 233 | |
3e6e0df2 JG |
234 | if (!lttng_buffer_view_is_valid(&name_view)) { |
235 | ERR("Failed to initialize from malformed condition buffer: buffer too short to contain session name"); | |
c19092cd JG |
236 | ret = -1; |
237 | goto end; | |
238 | } | |
239 | ||
3e6e0df2 JG |
240 | if (condition_comm->session_name_len > LTTNG_NAME_MAX) { |
241 | ERR("Failed to initialize from malformed condition buffer: name exceeds LTTNG_MAX_NAME"); | |
c19092cd JG |
242 | ret = -1; |
243 | goto end; | |
244 | } | |
245 | ||
246 | session_name = name_view.data; | |
247 | if (*(session_name + condition_comm->session_name_len - 1) != '\0') { | |
248 | ERR("Malformed session name encountered in condition buffer"); | |
249 | ret = -1; | |
250 | goto end; | |
251 | } | |
252 | ||
253 | status = lttng_condition_session_rotation_set_session_name(condition, | |
254 | session_name); | |
255 | if (status != LTTNG_CONDITION_STATUS_OK) { | |
256 | ERR("Failed to set buffer consumed session name"); | |
257 | ret = -1; | |
258 | goto end; | |
259 | } | |
260 | ||
261 | if (!lttng_condition_validate(condition)) { | |
262 | ret = -1; | |
263 | goto end; | |
264 | } | |
265 | ||
266 | condition_size = sizeof(*condition_comm) + | |
267 | (ssize_t) condition_comm->session_name_len; | |
268 | ret = condition_size; | |
269 | end: | |
270 | return ret; | |
271 | } | |
272 | ||
273 | static | |
c0a66c84 JG |
274 | ssize_t lttng_condition_session_rotation_create_from_payload( |
275 | struct lttng_payload_view *view, | |
c19092cd JG |
276 | struct lttng_condition **_condition, |
277 | enum lttng_condition_type type) | |
278 | { | |
279 | ssize_t ret; | |
280 | struct lttng_condition *condition = NULL; | |
281 | ||
282 | switch (type) { | |
283 | case LTTNG_CONDITION_TYPE_SESSION_ROTATION_ONGOING: | |
284 | condition = lttng_condition_session_rotation_ongoing_create(); | |
285 | break; | |
286 | case LTTNG_CONDITION_TYPE_SESSION_ROTATION_COMPLETED: | |
287 | condition = lttng_condition_session_rotation_completed_create(); | |
288 | break; | |
289 | default: | |
290 | ret = -1; | |
291 | goto error; | |
292 | } | |
293 | ||
294 | if (!_condition || !condition) { | |
295 | ret = -1; | |
296 | goto error; | |
297 | } | |
298 | ||
c0a66c84 | 299 | ret = init_condition_from_payload(condition, view); |
c19092cd JG |
300 | if (ret < 0) { |
301 | goto error; | |
302 | } | |
303 | ||
304 | *_condition = condition; | |
305 | return ret; | |
306 | error: | |
307 | lttng_condition_destroy(condition); | |
308 | return ret; | |
309 | } | |
310 | ||
c0a66c84 JG |
311 | ssize_t lttng_condition_session_rotation_ongoing_create_from_payload( |
312 | struct lttng_payload_view *view, | |
c19092cd JG |
313 | struct lttng_condition **condition) |
314 | { | |
c0a66c84 | 315 | return lttng_condition_session_rotation_create_from_payload(view, |
c19092cd JG |
316 | condition, |
317 | LTTNG_CONDITION_TYPE_SESSION_ROTATION_ONGOING); | |
318 | } | |
319 | ||
c0a66c84 JG |
320 | ssize_t lttng_condition_session_rotation_completed_create_from_payload( |
321 | struct lttng_payload_view *view, | |
c19092cd JG |
322 | struct lttng_condition **condition) |
323 | { | |
c0a66c84 | 324 | return lttng_condition_session_rotation_create_from_payload(view, |
c19092cd JG |
325 | condition, |
326 | LTTNG_CONDITION_TYPE_SESSION_ROTATION_COMPLETED); | |
327 | } | |
328 | ||
329 | static | |
330 | struct lttng_evaluation *lttng_evaluation_session_rotation_create( | |
331 | enum lttng_condition_type type, uint64_t id, | |
332 | struct lttng_trace_archive_location *location) | |
333 | { | |
334 | struct lttng_evaluation_session_rotation *evaluation; | |
335 | ||
a6bc4ca9 | 336 | evaluation = (lttng_evaluation_session_rotation *) zmalloc(sizeof(struct lttng_evaluation_session_rotation)); |
c19092cd JG |
337 | if (!evaluation) { |
338 | return NULL; | |
339 | } | |
340 | ||
341 | memcpy(&evaluation->parent, &rotation_evaluation_template, | |
a38478c9 | 342 | sizeof(evaluation->parent)); |
c19092cd JG |
343 | lttng_evaluation_init(&evaluation->parent, type); |
344 | evaluation->id = id; | |
d3740619 JR |
345 | if (location) { |
346 | lttng_trace_archive_location_get(location); | |
347 | } | |
c19092cd JG |
348 | evaluation->location = location; |
349 | return &evaluation->parent; | |
350 | } | |
351 | ||
352 | static | |
c0a66c84 | 353 | ssize_t create_evaluation_from_payload( |
c19092cd | 354 | enum lttng_condition_type type, |
c0a66c84 | 355 | struct lttng_payload_view *view, |
c19092cd JG |
356 | struct lttng_evaluation **_evaluation) |
357 | { | |
358 | ssize_t ret, size; | |
359 | struct lttng_evaluation *evaluation = NULL; | |
360 | struct lttng_trace_archive_location *location = NULL; | |
3e6e0df2 JG |
361 | const struct lttng_evaluation_session_rotation_comm *comm; |
362 | struct lttng_payload_view comm_view = lttng_payload_view_from_view( | |
363 | view, 0, sizeof(*comm)); | |
c19092cd | 364 | |
3e6e0df2 | 365 | if (!lttng_payload_view_is_valid(&comm_view)) { |
c19092cd JG |
366 | goto error; |
367 | } | |
368 | ||
3e6e0df2 | 369 | comm = (typeof(comm)) comm_view.buffer.data; |
c19092cd JG |
370 | size = sizeof(*comm); |
371 | if (comm->has_location) { | |
3e6e0df2 JG |
372 | const struct lttng_buffer_view location_view = |
373 | lttng_buffer_view_from_view( | |
374 | &view->buffer, sizeof(*comm), -1); | |
375 | ||
376 | if (!lttng_buffer_view_is_valid(&location_view)) { | |
c19092cd JG |
377 | goto error; |
378 | } | |
379 | ||
380 | ret = lttng_trace_archive_location_create_from_buffer( | |
381 | &location_view, &location); | |
382 | if (ret < 0) { | |
383 | goto error; | |
384 | } | |
385 | size += ret; | |
386 | } | |
387 | ||
388 | evaluation = lttng_evaluation_session_rotation_create(type, comm->id, | |
389 | location); | |
390 | if (!evaluation) { | |
391 | goto error; | |
392 | } | |
393 | ||
d3740619 | 394 | lttng_trace_archive_location_put(location); |
c19092cd JG |
395 | ret = size; |
396 | *_evaluation = evaluation; | |
397 | return ret; | |
398 | error: | |
d3740619 | 399 | lttng_trace_archive_location_put(location); |
c19092cd JG |
400 | evaluation = NULL; |
401 | return -1; | |
402 | } | |
403 | ||
404 | static | |
c0a66c84 | 405 | ssize_t lttng_evaluation_session_rotation_create_from_payload( |
c19092cd | 406 | enum lttng_condition_type type, |
c0a66c84 | 407 | struct lttng_payload_view *view, |
c19092cd JG |
408 | struct lttng_evaluation **_evaluation) |
409 | { | |
410 | ssize_t ret; | |
411 | struct lttng_evaluation *evaluation = NULL; | |
412 | ||
413 | if (!_evaluation) { | |
414 | ret = -1; | |
415 | goto error; | |
416 | } | |
417 | ||
c0a66c84 | 418 | ret = create_evaluation_from_payload(type, view, &evaluation); |
c19092cd JG |
419 | if (ret < 0) { |
420 | goto error; | |
421 | } | |
422 | ||
423 | *_evaluation = evaluation; | |
424 | return ret; | |
425 | error: | |
426 | lttng_evaluation_destroy(evaluation); | |
427 | return ret; | |
428 | } | |
429 | ||
c0a66c84 JG |
430 | ssize_t lttng_evaluation_session_rotation_ongoing_create_from_payload( |
431 | struct lttng_payload_view *view, | |
c19092cd JG |
432 | struct lttng_evaluation **evaluation) |
433 | { | |
c0a66c84 | 434 | return lttng_evaluation_session_rotation_create_from_payload( |
c19092cd JG |
435 | LTTNG_CONDITION_TYPE_SESSION_ROTATION_ONGOING, |
436 | view, evaluation); | |
437 | } | |
438 | ||
c0a66c84 JG |
439 | ssize_t lttng_evaluation_session_rotation_completed_create_from_payload( |
440 | struct lttng_payload_view *view, | |
c19092cd JG |
441 | struct lttng_evaluation **evaluation) |
442 | { | |
c0a66c84 | 443 | return lttng_evaluation_session_rotation_create_from_payload( |
c19092cd JG |
444 | LTTNG_CONDITION_TYPE_SESSION_ROTATION_COMPLETED, |
445 | view, evaluation); | |
446 | } | |
447 | ||
c19092cd JG |
448 | struct lttng_evaluation *lttng_evaluation_session_rotation_ongoing_create( |
449 | uint64_t id) | |
450 | { | |
451 | return lttng_evaluation_session_rotation_create( | |
452 | LTTNG_CONDITION_TYPE_SESSION_ROTATION_ONGOING, id, | |
453 | NULL); | |
454 | } | |
455 | ||
c19092cd JG |
456 | struct lttng_evaluation *lttng_evaluation_session_rotation_completed_create( |
457 | uint64_t id, struct lttng_trace_archive_location *location) | |
458 | { | |
459 | return lttng_evaluation_session_rotation_create( | |
460 | LTTNG_CONDITION_TYPE_SESSION_ROTATION_COMPLETED, id, | |
461 | location); | |
462 | } | |
463 | ||
464 | enum lttng_condition_status | |
465 | lttng_condition_session_rotation_get_session_name( | |
466 | const struct lttng_condition *condition, | |
467 | const char **session_name) | |
468 | { | |
469 | struct lttng_condition_session_rotation *rotation; | |
470 | enum lttng_condition_status status = LTTNG_CONDITION_STATUS_OK; | |
471 | ||
472 | if (!condition || !is_rotation_condition(condition) || !session_name) { | |
473 | status = LTTNG_CONDITION_STATUS_INVALID; | |
474 | goto end; | |
475 | } | |
476 | ||
477 | rotation = container_of(condition, struct lttng_condition_session_rotation, | |
478 | parent); | |
479 | if (!rotation->session_name) { | |
480 | status = LTTNG_CONDITION_STATUS_UNSET; | |
481 | goto end; | |
482 | } | |
483 | *session_name = rotation->session_name; | |
484 | end: | |
485 | return status; | |
486 | } | |
487 | ||
488 | enum lttng_condition_status | |
489 | lttng_condition_session_rotation_set_session_name( | |
490 | struct lttng_condition *condition, const char *session_name) | |
491 | { | |
492 | char *session_name_copy; | |
493 | struct lttng_condition_session_rotation *rotation; | |
494 | enum lttng_condition_status status = LTTNG_CONDITION_STATUS_OK; | |
495 | ||
496 | if (!condition || !is_rotation_condition(condition) || | |
497 | !session_name || strlen(session_name) == 0) { | |
498 | status = LTTNG_CONDITION_STATUS_INVALID; | |
499 | goto end; | |
500 | } | |
501 | ||
502 | rotation = container_of(condition, | |
503 | struct lttng_condition_session_rotation, parent); | |
504 | session_name_copy = strdup(session_name); | |
505 | if (!session_name_copy) { | |
506 | status = LTTNG_CONDITION_STATUS_ERROR; | |
507 | goto end; | |
508 | } | |
509 | ||
510 | free(rotation->session_name); | |
511 | rotation->session_name = session_name_copy; | |
512 | end: | |
513 | return status; | |
514 | } | |
515 | ||
516 | static | |
517 | int lttng_evaluation_session_rotation_serialize( | |
518 | const struct lttng_evaluation *evaluation, | |
c0a66c84 | 519 | struct lttng_payload *payload) |
c19092cd JG |
520 | { |
521 | int ret; | |
522 | struct lttng_evaluation_session_rotation *rotation; | |
523 | struct lttng_evaluation_session_rotation_comm comm = { 0 }; | |
524 | ||
525 | rotation = container_of(evaluation, | |
526 | struct lttng_evaluation_session_rotation, parent); | |
527 | comm.id = rotation->id; | |
528 | comm.has_location = !!rotation->location; | |
c0a66c84 JG |
529 | ret = lttng_dynamic_buffer_append( |
530 | &payload->buffer, &comm, sizeof(comm)); | |
c19092cd JG |
531 | if (ret) { |
532 | goto end; | |
533 | } | |
534 | if (!rotation->location) { | |
535 | goto end; | |
536 | } | |
537 | ret = lttng_trace_archive_location_serialize(rotation->location, | |
c0a66c84 | 538 | &payload->buffer); |
c19092cd JG |
539 | end: |
540 | return ret; | |
541 | } | |
542 | ||
543 | static | |
544 | void lttng_evaluation_session_rotation_destroy( | |
545 | struct lttng_evaluation *evaluation) | |
546 | { | |
547 | struct lttng_evaluation_session_rotation *rotation; | |
548 | ||
549 | rotation = container_of(evaluation, | |
550 | struct lttng_evaluation_session_rotation, parent); | |
d3740619 | 551 | lttng_trace_archive_location_put(rotation->location); |
c19092cd JG |
552 | free(rotation); |
553 | } | |
554 | ||
555 | enum lttng_evaluation_status | |
556 | lttng_evaluation_session_rotation_get_id( | |
557 | const struct lttng_evaluation *evaluation, uint64_t *id) | |
558 | { | |
559 | const struct lttng_evaluation_session_rotation *rotation; | |
560 | enum lttng_evaluation_status status = LTTNG_EVALUATION_STATUS_OK; | |
561 | ||
562 | if (!evaluation || !id || !is_rotation_evaluation(evaluation)) { | |
563 | status = LTTNG_EVALUATION_STATUS_INVALID; | |
564 | goto end; | |
565 | } | |
566 | ||
567 | rotation = container_of(evaluation, | |
568 | struct lttng_evaluation_session_rotation, parent); | |
569 | *id = rotation->id; | |
570 | end: | |
571 | return status; | |
572 | } | |
573 | ||
d3740619 JR |
574 | /* |
575 | * The public API assumes that trace archive locations are always provided as | |
576 | * "constant". This means that the user of liblttng-ctl never has to destroy a | |
577 | * trace archive location. Hence, users of liblttng-ctl have no visibility of | |
578 | * the reference counting of archive locations. | |
579 | */ | |
c19092cd JG |
580 | enum lttng_evaluation_status |
581 | lttng_evaluation_session_rotation_completed_get_location( | |
582 | const struct lttng_evaluation *evaluation, | |
583 | const struct lttng_trace_archive_location **location) | |
584 | { | |
585 | const struct lttng_evaluation_session_rotation *rotation; | |
586 | enum lttng_evaluation_status status = LTTNG_EVALUATION_STATUS_OK; | |
587 | ||
588 | if (!evaluation || !location || | |
589 | evaluation->type != LTTNG_CONDITION_TYPE_SESSION_ROTATION_COMPLETED) { | |
590 | status = LTTNG_EVALUATION_STATUS_INVALID; | |
591 | goto end; | |
592 | } | |
593 | ||
594 | rotation = container_of(evaluation, | |
595 | struct lttng_evaluation_session_rotation, parent); | |
596 | *location = rotation->location; | |
597 | end: | |
598 | return status; | |
599 | } | |
6a751b95 JR |
600 | |
601 | static | |
602 | enum lttng_error_code lttng_condition_session_rotation_mi_serialize( | |
603 | const struct lttng_condition *condition, | |
604 | struct mi_writer *writer) | |
605 | { | |
606 | int ret; | |
607 | enum lttng_error_code ret_code; | |
608 | enum lttng_condition_status status; | |
609 | const char *session_name = NULL; | |
610 | const char *type_element_str = NULL; | |
611 | ||
a0377dfe FD |
612 | LTTNG_ASSERT(condition); |
613 | LTTNG_ASSERT(writer); | |
614 | LTTNG_ASSERT(is_rotation_condition(condition)); | |
6a751b95 JR |
615 | |
616 | switch (lttng_condition_get_type(condition)) { | |
617 | case LTTNG_CONDITION_TYPE_SESSION_ROTATION_COMPLETED: | |
618 | type_element_str = | |
619 | mi_lttng_element_condition_session_rotation_completed; | |
620 | break; | |
621 | case LTTNG_CONDITION_TYPE_SESSION_ROTATION_ONGOING: | |
622 | type_element_str = | |
623 | mi_lttng_element_condition_session_rotation_ongoing; | |
624 | break; | |
625 | default: | |
626 | abort(); | |
627 | break; | |
628 | } | |
629 | ||
630 | status = lttng_condition_session_rotation_get_session_name( | |
631 | condition, &session_name); | |
a0377dfe FD |
632 | LTTNG_ASSERT(status == LTTNG_CONDITION_STATUS_OK); |
633 | LTTNG_ASSERT(session_name); | |
6a751b95 JR |
634 | |
635 | /* Open condition session rotation_* element. */ | |
636 | ret = mi_lttng_writer_open_element(writer, type_element_str); | |
637 | if (ret) { | |
638 | goto mi_error; | |
639 | } | |
640 | ||
641 | /* Session name. */ | |
642 | ret = mi_lttng_writer_write_element_string( | |
643 | writer, mi_lttng_element_session_name, session_name); | |
644 | if (ret) { | |
645 | goto mi_error; | |
646 | } | |
647 | ||
648 | /* Close condition session rotation element. */ | |
649 | ret = mi_lttng_writer_close_element(writer); | |
650 | if (ret) { | |
651 | goto mi_error; | |
652 | } | |
653 | ||
654 | ret_code = LTTNG_OK; | |
655 | goto end; | |
656 | ||
657 | mi_error: | |
658 | ret_code = LTTNG_ERR_MI_IO_FAIL; | |
659 | end: | |
660 | return ret_code; | |
661 | } |