Commit | Line | Data |
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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> | |
28ab034a | 11 | |
c9e313bc SM |
12 | #include <lttng/condition/condition-internal.hpp> |
13 | #include <lttng/condition/session-consumed-size-internal.hpp> | |
319370bd | 14 | #include <lttng/constant.h> |
28ab034a JG |
15 | |
16 | #include <float.h> | |
e8360425 | 17 | #include <math.h> |
e8360425 JD |
18 | #include <time.h> |
19 | ||
28ab034a JG |
20 | #define IS_CONSUMED_SIZE_CONDITION(condition) \ |
21 | (lttng_condition_get_type(condition) == LTTNG_CONDITION_TYPE_SESSION_CONSUMED_SIZE) | |
e8360425 | 22 | |
28ab034a JG |
23 | #define IS_CONSUMED_SIZE_EVALUATION(evaluation) \ |
24 | (lttng_evaluation_get_type(evaluation) == LTTNG_CONDITION_TYPE_SESSION_CONSUMED_SIZE) | |
e8360425 | 25 | |
28ab034a | 26 | static void lttng_condition_session_consumed_size_destroy(struct lttng_condition *condition) |
e8360425 JD |
27 | { |
28 | struct lttng_condition_session_consumed_size *consumed_size; | |
29 | ||
0114db0e | 30 | consumed_size = lttng::utils::container_of(condition, |
28ab034a | 31 | <tng_condition_session_consumed_size::parent); |
e8360425 JD |
32 | |
33 | free(consumed_size->session_name); | |
34 | free(consumed_size); | |
35 | } | |
36 | ||
28ab034a | 37 | static bool lttng_condition_session_consumed_size_validate(const struct lttng_condition *condition) |
e8360425 JD |
38 | { |
39 | bool valid = false; | |
40 | struct lttng_condition_session_consumed_size *consumed; | |
41 | ||
42 | if (!condition) { | |
43 | goto end; | |
44 | } | |
45 | ||
0114db0e | 46 | consumed = lttng::utils::container_of(condition, |
28ab034a | 47 | <tng_condition_session_consumed_size::parent); |
e8360425 | 48 | if (!consumed->session_name) { |
9ef5b6be | 49 | ERR("Invalid session consumed size condition: a target session name must be set."); |
e8360425 JD |
50 | goto end; |
51 | } | |
52 | if (!consumed->consumed_threshold_bytes.set) { | |
9ef5b6be | 53 | ERR("Invalid session consumed size condition: a threshold must be set."); |
e8360425 JD |
54 | goto end; |
55 | } | |
56 | ||
57 | valid = true; | |
58 | end: | |
59 | return valid; | |
60 | } | |
61 | ||
28ab034a JG |
62 | static int lttng_condition_session_consumed_size_serialize(const struct lttng_condition *condition, |
63 | struct lttng_payload *payload) | |
e8360425 | 64 | { |
3647288f | 65 | int ret; |
e8360425 | 66 | size_t session_name_len; |
3647288f JG |
67 | struct lttng_condition_session_consumed_size *consumed; |
68 | struct lttng_condition_session_consumed_size_comm consumed_comm; | |
e8360425 JD |
69 | |
70 | if (!condition || !IS_CONSUMED_SIZE_CONDITION(condition)) { | |
71 | ret = -1; | |
72 | goto end; | |
73 | } | |
74 | ||
3647288f | 75 | DBG("Serializing session consumed size condition"); |
0114db0e | 76 | consumed = lttng::utils::container_of(condition, |
28ab034a | 77 | <tng_condition_session_consumed_size::parent); |
3647288f | 78 | |
e8360425 JD |
79 | session_name_len = strlen(consumed->session_name) + 1; |
80 | if (session_name_len > LTTNG_NAME_MAX) { | |
81 | ret = -1; | |
82 | goto end; | |
83 | } | |
3647288f | 84 | |
28ab034a | 85 | consumed_comm.consumed_threshold_bytes = consumed->consumed_threshold_bytes.value; |
3647288f JG |
86 | consumed_comm.session_name_len = (uint32_t) session_name_len; |
87 | ||
28ab034a | 88 | ret = lttng_dynamic_buffer_append(&payload->buffer, &consumed_comm, sizeof(consumed_comm)); |
3647288f JG |
89 | if (ret) { |
90 | goto end; | |
91 | } | |
c0a66c84 | 92 | |
28ab034a JG |
93 | ret = lttng_dynamic_buffer_append( |
94 | &payload->buffer, consumed->session_name, session_name_len); | |
3647288f JG |
95 | if (ret) { |
96 | goto end; | |
e8360425 | 97 | } |
e8360425 JD |
98 | end: |
99 | return ret; | |
100 | } | |
101 | ||
28ab034a JG |
102 | static bool lttng_condition_session_consumed_size_is_equal(const struct lttng_condition *_a, |
103 | const struct lttng_condition *_b) | |
e8360425 JD |
104 | { |
105 | bool is_equal = false; | |
106 | struct lttng_condition_session_consumed_size *a, *b; | |
107 | ||
0114db0e JG |
108 | a = lttng::utils::container_of(_a, <tng_condition_session_consumed_size::parent); |
109 | b = lttng::utils::container_of(_b, <tng_condition_session_consumed_size::parent); | |
e8360425 JD |
110 | |
111 | if (a->consumed_threshold_bytes.set && b->consumed_threshold_bytes.set) { | |
112 | uint64_t a_value, b_value; | |
113 | ||
114 | a_value = a->consumed_threshold_bytes.value; | |
115 | b_value = b->consumed_threshold_bytes.value; | |
116 | if (a_value != b_value) { | |
117 | goto end; | |
118 | } | |
119 | } | |
120 | ||
a0377dfe FD |
121 | LTTNG_ASSERT(a->session_name); |
122 | LTTNG_ASSERT(b->session_name); | |
5c7248cd | 123 | if (strcmp(a->session_name, b->session_name) != 0) { |
e8360425 JD |
124 | goto end; |
125 | } | |
126 | ||
127 | is_equal = true; | |
128 | end: | |
129 | return is_equal; | |
130 | } | |
131 | ||
28ab034a JG |
132 | static enum lttng_error_code |
133 | lttng_condition_session_consumed_size_mi_serialize(const struct lttng_condition *condition, | |
134 | struct mi_writer *writer) | |
6a751b95 JR |
135 | { |
136 | int ret; | |
137 | enum lttng_error_code ret_code; | |
138 | enum lttng_condition_status status; | |
cd9adb8b | 139 | const char *session_name = nullptr; |
6a751b95 JR |
140 | uint64_t threshold_bytes; |
141 | ||
a0377dfe FD |
142 | LTTNG_ASSERT(condition); |
143 | LTTNG_ASSERT(writer); | |
144 | LTTNG_ASSERT(IS_CONSUMED_SIZE_CONDITION(condition)); | |
6a751b95 | 145 | |
28ab034a | 146 | status = lttng_condition_session_consumed_size_get_session_name(condition, &session_name); |
a0377dfe FD |
147 | LTTNG_ASSERT(status == LTTNG_CONDITION_STATUS_OK); |
148 | LTTNG_ASSERT(session_name); | |
6a751b95 | 149 | |
28ab034a | 150 | status = lttng_condition_session_consumed_size_get_threshold(condition, &threshold_bytes); |
a0377dfe | 151 | LTTNG_ASSERT(status == LTTNG_CONDITION_STATUS_OK); |
6a751b95 JR |
152 | |
153 | /* Open condition session consumed size element. */ | |
154 | ret = mi_lttng_writer_open_element(writer, | |
28ab034a | 155 | mi_lttng_element_condition_session_consumed_size); |
6a751b95 JR |
156 | if (ret) { |
157 | goto mi_error; | |
158 | } | |
159 | ||
160 | /* Session name. */ | |
161 | ret = mi_lttng_writer_write_element_string( | |
28ab034a | 162 | writer, mi_lttng_element_session_name, session_name); |
6a751b95 JR |
163 | if (ret) { |
164 | goto mi_error; | |
165 | } | |
166 | ||
167 | /* Threshold in bytes. */ | |
28ab034a JG |
168 | ret = mi_lttng_writer_write_element_unsigned_int( |
169 | writer, mi_lttng_element_condition_threshold_bytes, threshold_bytes); | |
6a751b95 JR |
170 | if (ret) { |
171 | goto mi_error; | |
172 | } | |
173 | ||
174 | /* Close condition session consumed size element. */ | |
175 | ret = mi_lttng_writer_close_element(writer); | |
176 | if (ret) { | |
177 | goto mi_error; | |
178 | } | |
179 | ||
180 | ret_code = LTTNG_OK; | |
181 | goto end; | |
182 | ||
183 | mi_error: | |
184 | ret_code = LTTNG_ERR_MI_IO_FAIL; | |
185 | end: | |
186 | return ret_code; | |
187 | } | |
188 | ||
e8360425 JD |
189 | struct lttng_condition *lttng_condition_session_consumed_size_create(void) |
190 | { | |
191 | struct lttng_condition_session_consumed_size *condition; | |
192 | ||
64803277 | 193 | condition = zmalloc<lttng_condition_session_consumed_size>(); |
e8360425 | 194 | if (!condition) { |
cd9adb8b | 195 | return nullptr; |
e8360425 JD |
196 | } |
197 | ||
198 | lttng_condition_init(&condition->parent, LTTNG_CONDITION_TYPE_SESSION_CONSUMED_SIZE); | |
199 | condition->parent.validate = lttng_condition_session_consumed_size_validate; | |
200 | condition->parent.serialize = lttng_condition_session_consumed_size_serialize; | |
201 | condition->parent.equal = lttng_condition_session_consumed_size_is_equal; | |
202 | condition->parent.destroy = lttng_condition_session_consumed_size_destroy; | |
6a751b95 | 203 | condition->parent.mi_serialize = lttng_condition_session_consumed_size_mi_serialize; |
e8360425 JD |
204 | return &condition->parent; |
205 | } | |
206 | ||
28ab034a JG |
207 | static ssize_t init_condition_from_payload(struct lttng_condition *condition, |
208 | struct lttng_payload_view *src_view) | |
e8360425 JD |
209 | { |
210 | ssize_t ret, condition_size; | |
211 | enum lttng_condition_status status; | |
e8360425 | 212 | const char *session_name; |
3e6e0df2 JG |
213 | struct lttng_buffer_view session_name_view; |
214 | const struct lttng_condition_session_consumed_size_comm *condition_comm; | |
07c4863f | 215 | const lttng_payload_view condition_comm_view = |
28ab034a | 216 | lttng_payload_view_from_view(src_view, 0, sizeof(*condition_comm)); |
e8360425 | 217 | |
3e6e0df2 | 218 | if (!lttng_payload_view_is_valid(&condition_comm_view)) { |
e8360425 JD |
219 | ERR("Failed to initialize from malformed condition buffer: buffer too short to contain header"); |
220 | ret = -1; | |
221 | goto end; | |
222 | } | |
223 | ||
3e6e0df2 | 224 | condition_comm = (typeof(condition_comm)) condition_comm_view.buffer.data; |
28ab034a JG |
225 | session_name_view = lttng_buffer_view_from_view( |
226 | &src_view->buffer, sizeof(*condition_comm), condition_comm->session_name_len); | |
e8360425 JD |
227 | |
228 | if (condition_comm->session_name_len > LTTNG_NAME_MAX) { | |
229 | ERR("Failed to initialize from malformed condition buffer: name exceeds LTTNG_MAX_NAME"); | |
230 | ret = -1; | |
231 | goto end; | |
232 | } | |
233 | ||
3e6e0df2 | 234 | if (!lttng_buffer_view_is_valid(&session_name_view)) { |
e8360425 JD |
235 | ERR("Failed to initialize from malformed condition buffer: buffer too short to contain element names"); |
236 | ret = -1; | |
237 | goto end; | |
238 | } | |
239 | ||
28ab034a JG |
240 | status = lttng_condition_session_consumed_size_set_threshold( |
241 | condition, condition_comm->consumed_threshold_bytes); | |
e8360425 | 242 | if (status != LTTNG_CONDITION_STATUS_OK) { |
9ef5b6be | 243 | ERR("Failed to initialize session consumed size condition threshold"); |
e8360425 JD |
244 | ret = -1; |
245 | goto end; | |
246 | } | |
247 | ||
3e6e0df2 | 248 | session_name = session_name_view.data; |
e8360425 JD |
249 | if (*(session_name + condition_comm->session_name_len - 1) != '\0') { |
250 | ERR("Malformed session name encountered in condition buffer"); | |
251 | ret = -1; | |
252 | goto end; | |
253 | } | |
254 | ||
28ab034a | 255 | status = lttng_condition_session_consumed_size_set_session_name(condition, session_name); |
e8360425 | 256 | if (status != LTTNG_CONDITION_STATUS_OK) { |
9ef5b6be | 257 | ERR("Failed to set session consumed size condition's session name"); |
e8360425 JD |
258 | ret = -1; |
259 | goto end; | |
260 | } | |
261 | ||
262 | if (!lttng_condition_validate(condition)) { | |
263 | ret = -1; | |
264 | goto end; | |
265 | } | |
266 | ||
28ab034a | 267 | condition_size = sizeof(*condition_comm) + (ssize_t) condition_comm->session_name_len; |
e8360425 JD |
268 | ret = condition_size; |
269 | end: | |
270 | return ret; | |
271 | } | |
272 | ||
28ab034a JG |
273 | ssize_t |
274 | lttng_condition_session_consumed_size_create_from_payload(struct lttng_payload_view *view, | |
275 | struct lttng_condition **_condition) | |
e8360425 JD |
276 | { |
277 | ssize_t ret; | |
28ab034a | 278 | struct lttng_condition *condition = lttng_condition_session_consumed_size_create(); |
e8360425 JD |
279 | |
280 | if (!_condition || !condition) { | |
281 | ret = -1; | |
282 | goto error; | |
283 | } | |
284 | ||
c0a66c84 | 285 | ret = init_condition_from_payload(condition, view); |
e8360425 JD |
286 | if (ret < 0) { |
287 | goto error; | |
288 | } | |
289 | ||
290 | *_condition = condition; | |
291 | return ret; | |
292 | error: | |
293 | lttng_condition_destroy(condition); | |
294 | return ret; | |
295 | } | |
296 | ||
28ab034a JG |
297 | static struct lttng_evaluation * |
298 | create_evaluation_from_payload(const struct lttng_payload_view *view) | |
e8360425 JD |
299 | { |
300 | const struct lttng_evaluation_session_consumed_size_comm *comm = | |
28ab034a | 301 | (typeof(comm)) view->buffer.data; |
cd9adb8b | 302 | struct lttng_evaluation *evaluation = nullptr; |
e8360425 | 303 | |
c0a66c84 | 304 | if (view->buffer.size < sizeof(*comm)) { |
e8360425 JD |
305 | goto end; |
306 | } | |
307 | ||
28ab034a | 308 | evaluation = lttng_evaluation_session_consumed_size_create(comm->session_consumed); |
e8360425 JD |
309 | end: |
310 | return evaluation; | |
311 | } | |
312 | ||
28ab034a JG |
313 | ssize_t |
314 | lttng_evaluation_session_consumed_size_create_from_payload(struct lttng_payload_view *view, | |
315 | struct lttng_evaluation **_evaluation) | |
e8360425 JD |
316 | { |
317 | ssize_t ret; | |
cd9adb8b | 318 | struct lttng_evaluation *evaluation = nullptr; |
e8360425 JD |
319 | |
320 | if (!_evaluation) { | |
321 | ret = -1; | |
322 | goto error; | |
323 | } | |
324 | ||
c0a66c84 | 325 | evaluation = create_evaluation_from_payload(view); |
e8360425 JD |
326 | if (!evaluation) { |
327 | ret = -1; | |
328 | goto error; | |
329 | } | |
330 | ||
331 | *_evaluation = evaluation; | |
332 | ret = sizeof(struct lttng_evaluation_session_consumed_size_comm); | |
333 | return ret; | |
334 | error: | |
335 | lttng_evaluation_destroy(evaluation); | |
336 | return ret; | |
337 | } | |
338 | ||
339 | enum lttng_condition_status | |
28ab034a JG |
340 | lttng_condition_session_consumed_size_get_threshold(const struct lttng_condition *condition, |
341 | uint64_t *consumed_threshold_bytes) | |
e8360425 JD |
342 | { |
343 | struct lttng_condition_session_consumed_size *consumed; | |
344 | enum lttng_condition_status status = LTTNG_CONDITION_STATUS_OK; | |
345 | ||
346 | if (!condition || !IS_CONSUMED_SIZE_CONDITION(condition) || !consumed_threshold_bytes) { | |
347 | status = LTTNG_CONDITION_STATUS_INVALID; | |
348 | goto end; | |
349 | } | |
350 | ||
0114db0e | 351 | consumed = lttng::utils::container_of(condition, |
28ab034a | 352 | <tng_condition_session_consumed_size::parent); |
e8360425 JD |
353 | if (!consumed->consumed_threshold_bytes.set) { |
354 | status = LTTNG_CONDITION_STATUS_UNSET; | |
355 | goto end; | |
356 | } | |
357 | *consumed_threshold_bytes = consumed->consumed_threshold_bytes.value; | |
358 | end: | |
359 | return status; | |
360 | } | |
361 | ||
362 | enum lttng_condition_status | |
28ab034a JG |
363 | lttng_condition_session_consumed_size_set_threshold(struct lttng_condition *condition, |
364 | uint64_t consumed_threshold_bytes) | |
e8360425 JD |
365 | { |
366 | struct lttng_condition_session_consumed_size *consumed; | |
367 | enum lttng_condition_status status = LTTNG_CONDITION_STATUS_OK; | |
368 | ||
369 | if (!condition || !IS_CONSUMED_SIZE_CONDITION(condition)) { | |
370 | status = LTTNG_CONDITION_STATUS_INVALID; | |
371 | goto end; | |
372 | } | |
373 | ||
0114db0e | 374 | consumed = lttng::utils::container_of(condition, |
28ab034a | 375 | <tng_condition_session_consumed_size::parent); |
e8360425 JD |
376 | consumed->consumed_threshold_bytes.set = true; |
377 | consumed->consumed_threshold_bytes.value = consumed_threshold_bytes; | |
378 | end: | |
379 | return status; | |
380 | } | |
381 | ||
382 | enum lttng_condition_status | |
28ab034a JG |
383 | lttng_condition_session_consumed_size_get_session_name(const struct lttng_condition *condition, |
384 | const char **session_name) | |
e8360425 JD |
385 | { |
386 | struct lttng_condition_session_consumed_size *consumed; | |
387 | enum lttng_condition_status status = LTTNG_CONDITION_STATUS_OK; | |
388 | ||
389 | if (!condition || !IS_CONSUMED_SIZE_CONDITION(condition) || !session_name) { | |
390 | status = LTTNG_CONDITION_STATUS_INVALID; | |
391 | goto end; | |
392 | } | |
393 | ||
0114db0e | 394 | consumed = lttng::utils::container_of(condition, |
28ab034a | 395 | <tng_condition_session_consumed_size::parent); |
e8360425 JD |
396 | if (!consumed->session_name) { |
397 | status = LTTNG_CONDITION_STATUS_UNSET; | |
398 | goto end; | |
399 | } | |
400 | *session_name = consumed->session_name; | |
401 | end: | |
402 | return status; | |
403 | } | |
404 | ||
405 | enum lttng_condition_status | |
28ab034a JG |
406 | lttng_condition_session_consumed_size_set_session_name(struct lttng_condition *condition, |
407 | const char *session_name) | |
e8360425 JD |
408 | { |
409 | char *session_name_copy; | |
410 | struct lttng_condition_session_consumed_size *consumed; | |
411 | enum lttng_condition_status status = LTTNG_CONDITION_STATUS_OK; | |
412 | ||
28ab034a JG |
413 | if (!condition || !IS_CONSUMED_SIZE_CONDITION(condition) || !session_name || |
414 | strlen(session_name) == 0) { | |
e8360425 JD |
415 | status = LTTNG_CONDITION_STATUS_INVALID; |
416 | goto end; | |
417 | } | |
418 | ||
0114db0e | 419 | consumed = lttng::utils::container_of(condition, |
28ab034a | 420 | <tng_condition_session_consumed_size::parent); |
e8360425 JD |
421 | session_name_copy = strdup(session_name); |
422 | if (!session_name_copy) { | |
423 | status = LTTNG_CONDITION_STATUS_ERROR; | |
424 | goto end; | |
425 | } | |
426 | ||
427 | if (consumed->session_name) { | |
428 | free(consumed->session_name); | |
429 | } | |
430 | consumed->session_name = session_name_copy; | |
431 | end: | |
432 | return status; | |
433 | } | |
434 | ||
28ab034a JG |
435 | static int |
436 | lttng_evaluation_session_consumed_size_serialize(const struct lttng_evaluation *evaluation, | |
437 | struct lttng_payload *payload) | |
e8360425 | 438 | { |
e8360425 | 439 | struct lttng_evaluation_session_consumed_size *consumed; |
3647288f | 440 | struct lttng_evaluation_session_consumed_size_comm comm; |
e8360425 | 441 | |
0114db0e | 442 | consumed = lttng::utils::container_of(evaluation, |
28ab034a | 443 | <tng_evaluation_session_consumed_size::parent); |
3647288f | 444 | comm.session_consumed = consumed->session_consumed; |
28ab034a | 445 | return lttng_dynamic_buffer_append(&payload->buffer, &comm, sizeof(comm)); |
e8360425 JD |
446 | } |
447 | ||
28ab034a | 448 | static void lttng_evaluation_session_consumed_size_destroy(struct lttng_evaluation *evaluation) |
e8360425 JD |
449 | { |
450 | struct lttng_evaluation_session_consumed_size *consumed; | |
451 | ||
0114db0e | 452 | consumed = lttng::utils::container_of(evaluation, |
28ab034a | 453 | <tng_evaluation_session_consumed_size::parent); |
e8360425 JD |
454 | free(consumed); |
455 | } | |
456 | ||
28ab034a | 457 | struct lttng_evaluation *lttng_evaluation_session_consumed_size_create(uint64_t consumed) |
e8360425 JD |
458 | { |
459 | struct lttng_evaluation_session_consumed_size *consumed_eval; | |
460 | ||
64803277 | 461 | consumed_eval = zmalloc<lttng_evaluation_session_consumed_size>(); |
e8360425 JD |
462 | if (!consumed_eval) { |
463 | goto end; | |
464 | } | |
465 | ||
5f2c1c0f | 466 | consumed_eval->parent.type = LTTNG_CONDITION_TYPE_SESSION_CONSUMED_SIZE; |
e8360425 JD |
467 | consumed_eval->session_consumed = consumed; |
468 | consumed_eval->parent.serialize = lttng_evaluation_session_consumed_size_serialize; | |
469 | consumed_eval->parent.destroy = lttng_evaluation_session_consumed_size_destroy; | |
470 | end: | |
471 | return &consumed_eval->parent; | |
472 | } | |
473 | ||
474 | enum lttng_evaluation_status | |
28ab034a JG |
475 | lttng_evaluation_session_consumed_size_get_consumed_size(const struct lttng_evaluation *evaluation, |
476 | uint64_t *session_consumed) | |
e8360425 JD |
477 | { |
478 | struct lttng_evaluation_session_consumed_size *consumed; | |
479 | enum lttng_evaluation_status status = LTTNG_EVALUATION_STATUS_OK; | |
480 | ||
28ab034a | 481 | if (!evaluation || !IS_CONSUMED_SIZE_EVALUATION(evaluation) || !session_consumed) { |
e8360425 JD |
482 | status = LTTNG_EVALUATION_STATUS_INVALID; |
483 | goto end; | |
484 | } | |
485 | ||
0114db0e | 486 | consumed = lttng::utils::container_of(evaluation, |
28ab034a | 487 | <tng_evaluation_session_consumed_size::parent); |
e8360425 JD |
488 | *session_consumed = consumed->session_consumed; |
489 | end: | |
490 | return status; | |
491 | } |