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e8360425 | 1 | /* |
ab5be9fa | 2 | * Copyright (C) 2017 Jérémie Galarneau <jeremie.galarneau@efficios.com> |
e8360425 | 3 | * |
ab5be9fa | 4 | * SPDX-License-Identifier: LGPL-2.1-only |
e8360425 | 5 | * |
e8360425 JD |
6 | */ |
7 | ||
c9e313bc SM |
8 | #include <common/error.hpp> |
9 | #include <common/macros.hpp> | |
10 | #include <common/mi-lttng.hpp> | |
6a751b95 | 11 | #include <float.h> |
c9e313bc SM |
12 | #include <lttng/condition/condition-internal.hpp> |
13 | #include <lttng/condition/session-consumed-size-internal.hpp> | |
319370bd | 14 | #include <lttng/constant.h> |
e8360425 | 15 | #include <math.h> |
e8360425 JD |
16 | #include <time.h> |
17 | ||
18 | #define IS_CONSUMED_SIZE_CONDITION(condition) ( \ | |
19 | lttng_condition_get_type(condition) == LTTNG_CONDITION_TYPE_SESSION_CONSUMED_SIZE \ | |
20 | ) | |
21 | ||
22 | #define IS_CONSUMED_SIZE_EVALUATION(evaluation) ( \ | |
23 | lttng_evaluation_get_type(evaluation) == LTTNG_CONDITION_TYPE_SESSION_CONSUMED_SIZE \ | |
24 | ) | |
25 | ||
26 | static | |
27 | void lttng_condition_session_consumed_size_destroy(struct lttng_condition *condition) | |
28 | { | |
29 | struct lttng_condition_session_consumed_size *consumed_size; | |
30 | ||
0114db0e JG |
31 | consumed_size = lttng::utils::container_of(condition, |
32 | <tng_condition_session_consumed_size::parent); | |
e8360425 JD |
33 | |
34 | free(consumed_size->session_name); | |
35 | free(consumed_size); | |
36 | } | |
37 | ||
38 | static | |
39 | bool lttng_condition_session_consumed_size_validate( | |
40 | const struct lttng_condition *condition) | |
41 | { | |
42 | bool valid = false; | |
43 | struct lttng_condition_session_consumed_size *consumed; | |
44 | ||
45 | if (!condition) { | |
46 | goto end; | |
47 | } | |
48 | ||
0114db0e JG |
49 | consumed = lttng::utils::container_of(condition, |
50 | <tng_condition_session_consumed_size::parent); | |
e8360425 | 51 | if (!consumed->session_name) { |
9ef5b6be | 52 | ERR("Invalid session consumed size condition: a target session name must be set."); |
e8360425 JD |
53 | goto end; |
54 | } | |
55 | if (!consumed->consumed_threshold_bytes.set) { | |
9ef5b6be | 56 | ERR("Invalid session consumed size condition: a threshold must be set."); |
e8360425 JD |
57 | goto end; |
58 | } | |
59 | ||
60 | valid = true; | |
61 | end: | |
62 | return valid; | |
63 | } | |
64 | ||
65 | static | |
3647288f JG |
66 | int lttng_condition_session_consumed_size_serialize( |
67 | const struct lttng_condition *condition, | |
c0a66c84 | 68 | struct lttng_payload *payload) |
e8360425 | 69 | { |
3647288f | 70 | int ret; |
e8360425 | 71 | size_t session_name_len; |
3647288f JG |
72 | struct lttng_condition_session_consumed_size *consumed; |
73 | struct lttng_condition_session_consumed_size_comm consumed_comm; | |
e8360425 JD |
74 | |
75 | if (!condition || !IS_CONSUMED_SIZE_CONDITION(condition)) { | |
76 | ret = -1; | |
77 | goto end; | |
78 | } | |
79 | ||
3647288f | 80 | DBG("Serializing session consumed size condition"); |
0114db0e JG |
81 | consumed = lttng::utils::container_of(condition, |
82 | <tng_condition_session_consumed_size::parent); | |
3647288f | 83 | |
e8360425 JD |
84 | session_name_len = strlen(consumed->session_name) + 1; |
85 | if (session_name_len > LTTNG_NAME_MAX) { | |
86 | ret = -1; | |
87 | goto end; | |
88 | } | |
3647288f JG |
89 | |
90 | consumed_comm.consumed_threshold_bytes = | |
91 | consumed->consumed_threshold_bytes.value; | |
92 | consumed_comm.session_name_len = (uint32_t) session_name_len; | |
93 | ||
c0a66c84 | 94 | ret = lttng_dynamic_buffer_append(&payload->buffer, &consumed_comm, |
3647288f JG |
95 | sizeof(consumed_comm)); |
96 | if (ret) { | |
97 | goto end; | |
98 | } | |
c0a66c84 JG |
99 | |
100 | ret = lttng_dynamic_buffer_append(&payload->buffer, consumed->session_name, | |
3647288f JG |
101 | session_name_len); |
102 | if (ret) { | |
103 | goto end; | |
e8360425 | 104 | } |
e8360425 JD |
105 | end: |
106 | return ret; | |
107 | } | |
108 | ||
109 | static | |
110 | bool lttng_condition_session_consumed_size_is_equal(const struct lttng_condition *_a, | |
111 | const struct lttng_condition *_b) | |
112 | { | |
113 | bool is_equal = false; | |
114 | struct lttng_condition_session_consumed_size *a, *b; | |
115 | ||
0114db0e JG |
116 | a = lttng::utils::container_of(_a, <tng_condition_session_consumed_size::parent); |
117 | b = lttng::utils::container_of(_b, <tng_condition_session_consumed_size::parent); | |
e8360425 JD |
118 | |
119 | if (a->consumed_threshold_bytes.set && b->consumed_threshold_bytes.set) { | |
120 | uint64_t a_value, b_value; | |
121 | ||
122 | a_value = a->consumed_threshold_bytes.value; | |
123 | b_value = b->consumed_threshold_bytes.value; | |
124 | if (a_value != b_value) { | |
125 | goto end; | |
126 | } | |
127 | } | |
128 | ||
a0377dfe FD |
129 | LTTNG_ASSERT(a->session_name); |
130 | LTTNG_ASSERT(b->session_name); | |
821d5e92 | 131 | if (strcmp(a->session_name, b->session_name)) { |
e8360425 JD |
132 | goto end; |
133 | } | |
134 | ||
135 | is_equal = true; | |
136 | end: | |
137 | return is_equal; | |
138 | } | |
139 | ||
6a751b95 JR |
140 | static |
141 | enum lttng_error_code lttng_condition_session_consumed_size_mi_serialize( | |
142 | const struct lttng_condition *condition, | |
143 | struct mi_writer *writer) | |
144 | { | |
145 | int ret; | |
146 | enum lttng_error_code ret_code; | |
147 | enum lttng_condition_status status; | |
148 | const char *session_name = NULL; | |
149 | uint64_t threshold_bytes; | |
150 | ||
a0377dfe FD |
151 | LTTNG_ASSERT(condition); |
152 | LTTNG_ASSERT(writer); | |
153 | LTTNG_ASSERT(IS_CONSUMED_SIZE_CONDITION(condition)); | |
6a751b95 JR |
154 | |
155 | status = lttng_condition_session_consumed_size_get_session_name( | |
156 | condition, &session_name); | |
a0377dfe FD |
157 | LTTNG_ASSERT(status == LTTNG_CONDITION_STATUS_OK); |
158 | LTTNG_ASSERT(session_name); | |
6a751b95 JR |
159 | |
160 | status = lttng_condition_session_consumed_size_get_threshold( | |
161 | condition, &threshold_bytes); | |
a0377dfe | 162 | LTTNG_ASSERT(status == LTTNG_CONDITION_STATUS_OK); |
6a751b95 JR |
163 | |
164 | /* Open condition session consumed size element. */ | |
165 | ret = mi_lttng_writer_open_element(writer, | |
166 | mi_lttng_element_condition_session_consumed_size); | |
167 | if (ret) { | |
168 | goto mi_error; | |
169 | } | |
170 | ||
171 | /* Session name. */ | |
172 | ret = mi_lttng_writer_write_element_string( | |
173 | writer, mi_lttng_element_session_name, session_name); | |
174 | if (ret) { | |
175 | goto mi_error; | |
176 | } | |
177 | ||
178 | /* Threshold in bytes. */ | |
179 | ret = mi_lttng_writer_write_element_unsigned_int(writer, | |
180 | mi_lttng_element_condition_threshold_bytes, | |
181 | threshold_bytes); | |
182 | if (ret) { | |
183 | goto mi_error; | |
184 | } | |
185 | ||
186 | /* Close condition session consumed size element. */ | |
187 | ret = mi_lttng_writer_close_element(writer); | |
188 | if (ret) { | |
189 | goto mi_error; | |
190 | } | |
191 | ||
192 | ret_code = LTTNG_OK; | |
193 | goto end; | |
194 | ||
195 | mi_error: | |
196 | ret_code = LTTNG_ERR_MI_IO_FAIL; | |
197 | end: | |
198 | return ret_code; | |
199 | } | |
200 | ||
e8360425 JD |
201 | struct lttng_condition *lttng_condition_session_consumed_size_create(void) |
202 | { | |
203 | struct lttng_condition_session_consumed_size *condition; | |
204 | ||
64803277 | 205 | condition = zmalloc<lttng_condition_session_consumed_size>(); |
e8360425 JD |
206 | if (!condition) { |
207 | return NULL; | |
208 | } | |
209 | ||
210 | lttng_condition_init(&condition->parent, LTTNG_CONDITION_TYPE_SESSION_CONSUMED_SIZE); | |
211 | condition->parent.validate = lttng_condition_session_consumed_size_validate; | |
212 | condition->parent.serialize = lttng_condition_session_consumed_size_serialize; | |
213 | condition->parent.equal = lttng_condition_session_consumed_size_is_equal; | |
214 | condition->parent.destroy = lttng_condition_session_consumed_size_destroy; | |
6a751b95 | 215 | condition->parent.mi_serialize = lttng_condition_session_consumed_size_mi_serialize; |
e8360425 JD |
216 | return &condition->parent; |
217 | } | |
218 | ||
219 | static | |
c0a66c84 JG |
220 | ssize_t init_condition_from_payload(struct lttng_condition *condition, |
221 | struct lttng_payload_view *src_view) | |
e8360425 JD |
222 | { |
223 | ssize_t ret, condition_size; | |
224 | enum lttng_condition_status status; | |
e8360425 | 225 | const char *session_name; |
3e6e0df2 JG |
226 | struct lttng_buffer_view session_name_view; |
227 | const struct lttng_condition_session_consumed_size_comm *condition_comm; | |
228 | struct lttng_payload_view condition_comm_view = lttng_payload_view_from_view( | |
229 | src_view, 0, sizeof(*condition_comm)); | |
e8360425 | 230 | |
3e6e0df2 | 231 | if (!lttng_payload_view_is_valid(&condition_comm_view)) { |
e8360425 JD |
232 | ERR("Failed to initialize from malformed condition buffer: buffer too short to contain header"); |
233 | ret = -1; | |
234 | goto end; | |
235 | } | |
236 | ||
3e6e0df2 JG |
237 | condition_comm = (typeof(condition_comm)) condition_comm_view.buffer.data; |
238 | session_name_view = lttng_buffer_view_from_view(&src_view->buffer, | |
239 | sizeof(*condition_comm), condition_comm->session_name_len); | |
e8360425 JD |
240 | |
241 | if (condition_comm->session_name_len > LTTNG_NAME_MAX) { | |
242 | ERR("Failed to initialize from malformed condition buffer: name exceeds LTTNG_MAX_NAME"); | |
243 | ret = -1; | |
244 | goto end; | |
245 | } | |
246 | ||
3e6e0df2 | 247 | if (!lttng_buffer_view_is_valid(&session_name_view)) { |
e8360425 JD |
248 | ERR("Failed to initialize from malformed condition buffer: buffer too short to contain element names"); |
249 | ret = -1; | |
250 | goto end; | |
251 | } | |
252 | ||
253 | status = lttng_condition_session_consumed_size_set_threshold(condition, | |
254 | condition_comm->consumed_threshold_bytes); | |
255 | if (status != LTTNG_CONDITION_STATUS_OK) { | |
9ef5b6be | 256 | ERR("Failed to initialize session consumed size condition threshold"); |
e8360425 JD |
257 | ret = -1; |
258 | goto end; | |
259 | } | |
260 | ||
3e6e0df2 | 261 | session_name = session_name_view.data; |
e8360425 JD |
262 | if (*(session_name + condition_comm->session_name_len - 1) != '\0') { |
263 | ERR("Malformed session name encountered in condition buffer"); | |
264 | ret = -1; | |
265 | goto end; | |
266 | } | |
267 | ||
268 | status = lttng_condition_session_consumed_size_set_session_name(condition, | |
269 | session_name); | |
270 | if (status != LTTNG_CONDITION_STATUS_OK) { | |
9ef5b6be | 271 | ERR("Failed to set session consumed size condition's session name"); |
e8360425 JD |
272 | ret = -1; |
273 | goto end; | |
274 | } | |
275 | ||
276 | if (!lttng_condition_validate(condition)) { | |
277 | ret = -1; | |
278 | goto end; | |
279 | } | |
280 | ||
281 | condition_size = sizeof(*condition_comm) + | |
282 | (ssize_t) condition_comm->session_name_len; | |
283 | ret = condition_size; | |
284 | end: | |
285 | return ret; | |
286 | } | |
287 | ||
c0a66c84 JG |
288 | ssize_t lttng_condition_session_consumed_size_create_from_payload( |
289 | struct lttng_payload_view *view, | |
e8360425 JD |
290 | struct lttng_condition **_condition) |
291 | { | |
292 | ssize_t ret; | |
293 | struct lttng_condition *condition = | |
294 | lttng_condition_session_consumed_size_create(); | |
295 | ||
296 | if (!_condition || !condition) { | |
297 | ret = -1; | |
298 | goto error; | |
299 | } | |
300 | ||
c0a66c84 | 301 | ret = init_condition_from_payload(condition, view); |
e8360425 JD |
302 | if (ret < 0) { |
303 | goto error; | |
304 | } | |
305 | ||
306 | *_condition = condition; | |
307 | return ret; | |
308 | error: | |
309 | lttng_condition_destroy(condition); | |
310 | return ret; | |
311 | } | |
312 | ||
313 | static | |
c0a66c84 JG |
314 | struct lttng_evaluation *create_evaluation_from_payload( |
315 | const struct lttng_payload_view *view) | |
e8360425 JD |
316 | { |
317 | const struct lttng_evaluation_session_consumed_size_comm *comm = | |
c0a66c84 | 318 | (typeof(comm)) view->buffer.data; |
e8360425 JD |
319 | struct lttng_evaluation *evaluation = NULL; |
320 | ||
c0a66c84 | 321 | if (view->buffer.size < sizeof(*comm)) { |
e8360425 JD |
322 | goto end; |
323 | } | |
324 | ||
5f2c1c0f | 325 | evaluation = lttng_evaluation_session_consumed_size_create( |
e8360425 JD |
326 | comm->session_consumed); |
327 | end: | |
328 | return evaluation; | |
329 | } | |
330 | ||
c0a66c84 JG |
331 | ssize_t lttng_evaluation_session_consumed_size_create_from_payload( |
332 | struct lttng_payload_view *view, | |
e8360425 JD |
333 | struct lttng_evaluation **_evaluation) |
334 | { | |
335 | ssize_t ret; | |
336 | struct lttng_evaluation *evaluation = NULL; | |
337 | ||
338 | if (!_evaluation) { | |
339 | ret = -1; | |
340 | goto error; | |
341 | } | |
342 | ||
c0a66c84 | 343 | evaluation = create_evaluation_from_payload(view); |
e8360425 JD |
344 | if (!evaluation) { |
345 | ret = -1; | |
346 | goto error; | |
347 | } | |
348 | ||
349 | *_evaluation = evaluation; | |
350 | ret = sizeof(struct lttng_evaluation_session_consumed_size_comm); | |
351 | return ret; | |
352 | error: | |
353 | lttng_evaluation_destroy(evaluation); | |
354 | return ret; | |
355 | } | |
356 | ||
357 | enum lttng_condition_status | |
358 | lttng_condition_session_consumed_size_get_threshold( | |
359 | const struct lttng_condition *condition, | |
360 | uint64_t *consumed_threshold_bytes) | |
361 | { | |
362 | struct lttng_condition_session_consumed_size *consumed; | |
363 | enum lttng_condition_status status = LTTNG_CONDITION_STATUS_OK; | |
364 | ||
365 | if (!condition || !IS_CONSUMED_SIZE_CONDITION(condition) || !consumed_threshold_bytes) { | |
366 | status = LTTNG_CONDITION_STATUS_INVALID; | |
367 | goto end; | |
368 | } | |
369 | ||
0114db0e JG |
370 | consumed = lttng::utils::container_of(condition, |
371 | <tng_condition_session_consumed_size::parent); | |
e8360425 JD |
372 | if (!consumed->consumed_threshold_bytes.set) { |
373 | status = LTTNG_CONDITION_STATUS_UNSET; | |
374 | goto end; | |
375 | } | |
376 | *consumed_threshold_bytes = consumed->consumed_threshold_bytes.value; | |
377 | end: | |
378 | return status; | |
379 | } | |
380 | ||
381 | enum lttng_condition_status | |
382 | lttng_condition_session_consumed_size_set_threshold( | |
383 | struct lttng_condition *condition, uint64_t consumed_threshold_bytes) | |
384 | { | |
385 | struct lttng_condition_session_consumed_size *consumed; | |
386 | enum lttng_condition_status status = LTTNG_CONDITION_STATUS_OK; | |
387 | ||
388 | if (!condition || !IS_CONSUMED_SIZE_CONDITION(condition)) { | |
389 | status = LTTNG_CONDITION_STATUS_INVALID; | |
390 | goto end; | |
391 | } | |
392 | ||
0114db0e JG |
393 | consumed = lttng::utils::container_of(condition, |
394 | <tng_condition_session_consumed_size::parent); | |
e8360425 JD |
395 | consumed->consumed_threshold_bytes.set = true; |
396 | consumed->consumed_threshold_bytes.value = consumed_threshold_bytes; | |
397 | end: | |
398 | return status; | |
399 | } | |
400 | ||
401 | enum lttng_condition_status | |
402 | lttng_condition_session_consumed_size_get_session_name( | |
403 | const struct lttng_condition *condition, | |
404 | const char **session_name) | |
405 | { | |
406 | struct lttng_condition_session_consumed_size *consumed; | |
407 | enum lttng_condition_status status = LTTNG_CONDITION_STATUS_OK; | |
408 | ||
409 | if (!condition || !IS_CONSUMED_SIZE_CONDITION(condition) || !session_name) { | |
410 | status = LTTNG_CONDITION_STATUS_INVALID; | |
411 | goto end; | |
412 | } | |
413 | ||
0114db0e JG |
414 | consumed = lttng::utils::container_of(condition, |
415 | <tng_condition_session_consumed_size::parent); | |
e8360425 JD |
416 | if (!consumed->session_name) { |
417 | status = LTTNG_CONDITION_STATUS_UNSET; | |
418 | goto end; | |
419 | } | |
420 | *session_name = consumed->session_name; | |
421 | end: | |
422 | return status; | |
423 | } | |
424 | ||
425 | enum lttng_condition_status | |
426 | lttng_condition_session_consumed_size_set_session_name( | |
427 | struct lttng_condition *condition, const char *session_name) | |
428 | { | |
429 | char *session_name_copy; | |
430 | struct lttng_condition_session_consumed_size *consumed; | |
431 | enum lttng_condition_status status = LTTNG_CONDITION_STATUS_OK; | |
432 | ||
433 | if (!condition || !IS_CONSUMED_SIZE_CONDITION(condition) || | |
434 | !session_name || strlen(session_name) == 0) { | |
435 | status = LTTNG_CONDITION_STATUS_INVALID; | |
436 | goto end; | |
437 | } | |
438 | ||
0114db0e JG |
439 | consumed = lttng::utils::container_of(condition, |
440 | <tng_condition_session_consumed_size::parent); | |
e8360425 JD |
441 | session_name_copy = strdup(session_name); |
442 | if (!session_name_copy) { | |
443 | status = LTTNG_CONDITION_STATUS_ERROR; | |
444 | goto end; | |
445 | } | |
446 | ||
447 | if (consumed->session_name) { | |
448 | free(consumed->session_name); | |
449 | } | |
450 | consumed->session_name = session_name_copy; | |
451 | end: | |
452 | return status; | |
453 | } | |
454 | ||
455 | static | |
3647288f | 456 | int lttng_evaluation_session_consumed_size_serialize( |
9b63a4aa | 457 | const struct lttng_evaluation *evaluation, |
c0a66c84 | 458 | struct lttng_payload *payload) |
e8360425 | 459 | { |
e8360425 | 460 | struct lttng_evaluation_session_consumed_size *consumed; |
3647288f | 461 | struct lttng_evaluation_session_consumed_size_comm comm; |
e8360425 | 462 | |
0114db0e JG |
463 | consumed = lttng::utils::container_of(evaluation, |
464 | <tng_evaluation_session_consumed_size::parent); | |
3647288f | 465 | comm.session_consumed = consumed->session_consumed; |
c0a66c84 JG |
466 | return lttng_dynamic_buffer_append( |
467 | &payload->buffer, &comm, sizeof(comm)); | |
e8360425 JD |
468 | } |
469 | ||
470 | static | |
471 | void lttng_evaluation_session_consumed_size_destroy( | |
472 | struct lttng_evaluation *evaluation) | |
473 | { | |
474 | struct lttng_evaluation_session_consumed_size *consumed; | |
475 | ||
0114db0e JG |
476 | consumed = lttng::utils::container_of(evaluation, |
477 | <tng_evaluation_session_consumed_size::parent); | |
e8360425 JD |
478 | free(consumed); |
479 | } | |
480 | ||
e8360425 | 481 | struct lttng_evaluation *lttng_evaluation_session_consumed_size_create( |
5f2c1c0f | 482 | uint64_t consumed) |
e8360425 JD |
483 | { |
484 | struct lttng_evaluation_session_consumed_size *consumed_eval; | |
485 | ||
64803277 | 486 | consumed_eval = zmalloc<lttng_evaluation_session_consumed_size>(); |
e8360425 JD |
487 | if (!consumed_eval) { |
488 | goto end; | |
489 | } | |
490 | ||
5f2c1c0f | 491 | consumed_eval->parent.type = LTTNG_CONDITION_TYPE_SESSION_CONSUMED_SIZE; |
e8360425 JD |
492 | consumed_eval->session_consumed = consumed; |
493 | consumed_eval->parent.serialize = lttng_evaluation_session_consumed_size_serialize; | |
494 | consumed_eval->parent.destroy = lttng_evaluation_session_consumed_size_destroy; | |
495 | end: | |
496 | return &consumed_eval->parent; | |
497 | } | |
498 | ||
499 | enum lttng_evaluation_status | |
500 | lttng_evaluation_session_consumed_size_get_consumed_size( | |
501 | const struct lttng_evaluation *evaluation, | |
502 | uint64_t *session_consumed) | |
503 | { | |
504 | struct lttng_evaluation_session_consumed_size *consumed; | |
505 | enum lttng_evaluation_status status = LTTNG_EVALUATION_STATUS_OK; | |
506 | ||
507 | if (!evaluation || !IS_CONSUMED_SIZE_EVALUATION(evaluation) || | |
508 | !session_consumed) { | |
509 | status = LTTNG_EVALUATION_STATUS_INVALID; | |
510 | goto end; | |
511 | } | |
512 | ||
0114db0e JG |
513 | consumed = lttng::utils::container_of(evaluation, |
514 | <tng_evaluation_session_consumed_size::parent); | |
e8360425 JD |
515 | *session_consumed = consumed->session_consumed; |
516 | end: | |
517 | return status; | |
518 | } |