2 * Copyright (C) 2017 Jérémie Galarneau <jeremie.galarneau@efficios.com>
4 * SPDX-License-Identifier: LGPL-2.1-only
9 #include <common/error.h>
10 #include <common/macros.h>
11 #include <common/mi-lttng.h>
13 #include <lttng/condition/condition-internal.h>
14 #include <lttng/condition/session-consumed-size-internal.h>
15 #include <lttng/constant.h>
19 #define IS_CONSUMED_SIZE_CONDITION(condition) ( \
20 lttng_condition_get_type(condition) == LTTNG_CONDITION_TYPE_SESSION_CONSUMED_SIZE \
23 #define IS_CONSUMED_SIZE_EVALUATION(evaluation) ( \
24 lttng_evaluation_get_type(evaluation) == LTTNG_CONDITION_TYPE_SESSION_CONSUMED_SIZE \
28 void lttng_condition_session_consumed_size_destroy(struct lttng_condition
*condition
)
30 struct lttng_condition_session_consumed_size
*consumed_size
;
32 consumed_size
= container_of(condition
,
33 struct lttng_condition_session_consumed_size
, parent
);
35 free(consumed_size
->session_name
);
40 bool lttng_condition_session_consumed_size_validate(
41 const struct lttng_condition
*condition
)
44 struct lttng_condition_session_consumed_size
*consumed
;
50 consumed
= container_of(condition
, struct lttng_condition_session_consumed_size
,
52 if (!consumed
->session_name
) {
53 ERR("Invalid session consumed size condition: a target session name must be set.");
56 if (!consumed
->consumed_threshold_bytes
.set
) {
57 ERR("Invalid session consumed size condition: a threshold must be set.");
67 int lttng_condition_session_consumed_size_serialize(
68 const struct lttng_condition
*condition
,
69 struct lttng_payload
*payload
)
72 size_t session_name_len
;
73 struct lttng_condition_session_consumed_size
*consumed
;
74 struct lttng_condition_session_consumed_size_comm consumed_comm
;
76 if (!condition
|| !IS_CONSUMED_SIZE_CONDITION(condition
)) {
81 DBG("Serializing session consumed size condition");
82 consumed
= container_of(condition
,
83 struct lttng_condition_session_consumed_size
,
86 session_name_len
= strlen(consumed
->session_name
) + 1;
87 if (session_name_len
> LTTNG_NAME_MAX
) {
92 consumed_comm
.consumed_threshold_bytes
=
93 consumed
->consumed_threshold_bytes
.value
;
94 consumed_comm
.session_name_len
= (uint32_t) session_name_len
;
96 ret
= lttng_dynamic_buffer_append(&payload
->buffer
, &consumed_comm
,
97 sizeof(consumed_comm
));
102 ret
= lttng_dynamic_buffer_append(&payload
->buffer
, consumed
->session_name
,
112 bool lttng_condition_session_consumed_size_is_equal(const struct lttng_condition
*_a
,
113 const struct lttng_condition
*_b
)
115 bool is_equal
= false;
116 struct lttng_condition_session_consumed_size
*a
, *b
;
118 a
= container_of(_a
, struct lttng_condition_session_consumed_size
, parent
);
119 b
= container_of(_b
, struct lttng_condition_session_consumed_size
, parent
);
121 if (a
->consumed_threshold_bytes
.set
&& b
->consumed_threshold_bytes
.set
) {
122 uint64_t a_value
, b_value
;
124 a_value
= a
->consumed_threshold_bytes
.value
;
125 b_value
= b
->consumed_threshold_bytes
.value
;
126 if (a_value
!= b_value
) {
131 assert(a
->session_name
);
132 assert(b
->session_name
);
133 if (strcmp(a
->session_name
, b
->session_name
)) {
143 enum lttng_error_code
lttng_condition_session_consumed_size_mi_serialize(
144 const struct lttng_condition
*condition
,
145 struct mi_writer
*writer
)
148 enum lttng_error_code ret_code
;
149 enum lttng_condition_status status
;
150 const char *session_name
= NULL
;
151 uint64_t threshold_bytes
;
155 assert(IS_CONSUMED_SIZE_CONDITION(condition
));
157 status
= lttng_condition_session_consumed_size_get_session_name(
158 condition
, &session_name
);
159 assert(status
== LTTNG_CONDITION_STATUS_OK
);
160 assert(session_name
);
162 status
= lttng_condition_session_consumed_size_get_threshold(
163 condition
, &threshold_bytes
);
164 assert(status
== LTTNG_CONDITION_STATUS_OK
);
166 /* Open condition session consumed size element. */
167 ret
= mi_lttng_writer_open_element(writer
,
168 mi_lttng_element_condition_session_consumed_size
);
174 ret
= mi_lttng_writer_write_element_string(
175 writer
, mi_lttng_element_session_name
, session_name
);
180 /* Threshold in bytes. */
181 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
182 mi_lttng_element_condition_threshold_bytes
,
188 /* Close condition session consumed size element. */
189 ret
= mi_lttng_writer_close_element(writer
);
198 ret_code
= LTTNG_ERR_MI_IO_FAIL
;
203 struct lttng_condition
*lttng_condition_session_consumed_size_create(void)
205 struct lttng_condition_session_consumed_size
*condition
;
207 condition
= zmalloc(sizeof(struct lttng_condition_session_consumed_size
));
212 lttng_condition_init(&condition
->parent
, LTTNG_CONDITION_TYPE_SESSION_CONSUMED_SIZE
);
213 condition
->parent
.validate
= lttng_condition_session_consumed_size_validate
;
214 condition
->parent
.serialize
= lttng_condition_session_consumed_size_serialize
;
215 condition
->parent
.equal
= lttng_condition_session_consumed_size_is_equal
;
216 condition
->parent
.destroy
= lttng_condition_session_consumed_size_destroy
;
217 condition
->parent
.mi_serialize
= lttng_condition_session_consumed_size_mi_serialize
;
218 return &condition
->parent
;
222 ssize_t
init_condition_from_payload(struct lttng_condition
*condition
,
223 struct lttng_payload_view
*src_view
)
225 ssize_t ret
, condition_size
;
226 enum lttng_condition_status status
;
227 const char *session_name
;
228 struct lttng_buffer_view session_name_view
;
229 const struct lttng_condition_session_consumed_size_comm
*condition_comm
;
230 struct lttng_payload_view condition_comm_view
= lttng_payload_view_from_view(
231 src_view
, 0, sizeof(*condition_comm
));
233 if (!lttng_payload_view_is_valid(&condition_comm_view
)) {
234 ERR("Failed to initialize from malformed condition buffer: buffer too short to contain header");
239 condition_comm
= (typeof(condition_comm
)) condition_comm_view
.buffer
.data
;
240 session_name_view
= lttng_buffer_view_from_view(&src_view
->buffer
,
241 sizeof(*condition_comm
), condition_comm
->session_name_len
);
243 if (condition_comm
->session_name_len
> LTTNG_NAME_MAX
) {
244 ERR("Failed to initialize from malformed condition buffer: name exceeds LTTNG_MAX_NAME");
249 if (!lttng_buffer_view_is_valid(&session_name_view
)) {
250 ERR("Failed to initialize from malformed condition buffer: buffer too short to contain element names");
255 status
= lttng_condition_session_consumed_size_set_threshold(condition
,
256 condition_comm
->consumed_threshold_bytes
);
257 if (status
!= LTTNG_CONDITION_STATUS_OK
) {
258 ERR("Failed to initialize session consumed size condition threshold");
263 session_name
= session_name_view
.data
;
264 if (*(session_name
+ condition_comm
->session_name_len
- 1) != '\0') {
265 ERR("Malformed session name encountered in condition buffer");
270 status
= lttng_condition_session_consumed_size_set_session_name(condition
,
272 if (status
!= LTTNG_CONDITION_STATUS_OK
) {
273 ERR("Failed to set session consumed size condition's session name");
278 if (!lttng_condition_validate(condition
)) {
283 condition_size
= sizeof(*condition_comm
) +
284 (ssize_t
) condition_comm
->session_name_len
;
285 ret
= condition_size
;
291 ssize_t
lttng_condition_session_consumed_size_create_from_payload(
292 struct lttng_payload_view
*view
,
293 struct lttng_condition
**_condition
)
296 struct lttng_condition
*condition
=
297 lttng_condition_session_consumed_size_create();
299 if (!_condition
|| !condition
) {
304 ret
= init_condition_from_payload(condition
, view
);
309 *_condition
= condition
;
312 lttng_condition_destroy(condition
);
317 struct lttng_evaluation
*create_evaluation_from_payload(
318 const struct lttng_payload_view
*view
)
320 const struct lttng_evaluation_session_consumed_size_comm
*comm
=
321 (typeof(comm
)) view
->buffer
.data
;
322 struct lttng_evaluation
*evaluation
= NULL
;
324 if (view
->buffer
.size
< sizeof(*comm
)) {
328 evaluation
= lttng_evaluation_session_consumed_size_create(
329 comm
->session_consumed
);
335 ssize_t
lttng_evaluation_session_consumed_size_create_from_payload(
336 struct lttng_payload_view
*view
,
337 struct lttng_evaluation
**_evaluation
)
340 struct lttng_evaluation
*evaluation
= NULL
;
347 evaluation
= create_evaluation_from_payload(view
);
353 *_evaluation
= evaluation
;
354 ret
= sizeof(struct lttng_evaluation_session_consumed_size_comm
);
357 lttng_evaluation_destroy(evaluation
);
361 enum lttng_condition_status
362 lttng_condition_session_consumed_size_get_threshold(
363 const struct lttng_condition
*condition
,
364 uint64_t *consumed_threshold_bytes
)
366 struct lttng_condition_session_consumed_size
*consumed
;
367 enum lttng_condition_status status
= LTTNG_CONDITION_STATUS_OK
;
369 if (!condition
|| !IS_CONSUMED_SIZE_CONDITION(condition
) || !consumed_threshold_bytes
) {
370 status
= LTTNG_CONDITION_STATUS_INVALID
;
374 consumed
= container_of(condition
, struct lttng_condition_session_consumed_size
,
376 if (!consumed
->consumed_threshold_bytes
.set
) {
377 status
= LTTNG_CONDITION_STATUS_UNSET
;
380 *consumed_threshold_bytes
= consumed
->consumed_threshold_bytes
.value
;
385 enum lttng_condition_status
386 lttng_condition_session_consumed_size_set_threshold(
387 struct lttng_condition
*condition
, uint64_t consumed_threshold_bytes
)
389 struct lttng_condition_session_consumed_size
*consumed
;
390 enum lttng_condition_status status
= LTTNG_CONDITION_STATUS_OK
;
392 if (!condition
|| !IS_CONSUMED_SIZE_CONDITION(condition
)) {
393 status
= LTTNG_CONDITION_STATUS_INVALID
;
397 consumed
= container_of(condition
, struct lttng_condition_session_consumed_size
,
399 consumed
->consumed_threshold_bytes
.set
= true;
400 consumed
->consumed_threshold_bytes
.value
= consumed_threshold_bytes
;
405 enum lttng_condition_status
406 lttng_condition_session_consumed_size_get_session_name(
407 const struct lttng_condition
*condition
,
408 const char **session_name
)
410 struct lttng_condition_session_consumed_size
*consumed
;
411 enum lttng_condition_status status
= LTTNG_CONDITION_STATUS_OK
;
413 if (!condition
|| !IS_CONSUMED_SIZE_CONDITION(condition
) || !session_name
) {
414 status
= LTTNG_CONDITION_STATUS_INVALID
;
418 consumed
= container_of(condition
, struct lttng_condition_session_consumed_size
,
420 if (!consumed
->session_name
) {
421 status
= LTTNG_CONDITION_STATUS_UNSET
;
424 *session_name
= consumed
->session_name
;
429 enum lttng_condition_status
430 lttng_condition_session_consumed_size_set_session_name(
431 struct lttng_condition
*condition
, const char *session_name
)
433 char *session_name_copy
;
434 struct lttng_condition_session_consumed_size
*consumed
;
435 enum lttng_condition_status status
= LTTNG_CONDITION_STATUS_OK
;
437 if (!condition
|| !IS_CONSUMED_SIZE_CONDITION(condition
) ||
438 !session_name
|| strlen(session_name
) == 0) {
439 status
= LTTNG_CONDITION_STATUS_INVALID
;
443 consumed
= container_of(condition
, struct lttng_condition_session_consumed_size
,
445 session_name_copy
= strdup(session_name
);
446 if (!session_name_copy
) {
447 status
= LTTNG_CONDITION_STATUS_ERROR
;
451 if (consumed
->session_name
) {
452 free(consumed
->session_name
);
454 consumed
->session_name
= session_name_copy
;
460 int lttng_evaluation_session_consumed_size_serialize(
461 const struct lttng_evaluation
*evaluation
,
462 struct lttng_payload
*payload
)
464 struct lttng_evaluation_session_consumed_size
*consumed
;
465 struct lttng_evaluation_session_consumed_size_comm comm
;
467 consumed
= container_of(evaluation
,
468 struct lttng_evaluation_session_consumed_size
, parent
);
469 comm
.session_consumed
= consumed
->session_consumed
;
470 return lttng_dynamic_buffer_append(
471 &payload
->buffer
, &comm
, sizeof(comm
));
475 void lttng_evaluation_session_consumed_size_destroy(
476 struct lttng_evaluation
*evaluation
)
478 struct lttng_evaluation_session_consumed_size
*consumed
;
480 consumed
= container_of(evaluation
, struct lttng_evaluation_session_consumed_size
,
486 struct lttng_evaluation
*lttng_evaluation_session_consumed_size_create(
489 struct lttng_evaluation_session_consumed_size
*consumed_eval
;
491 consumed_eval
= zmalloc(sizeof(struct lttng_evaluation_session_consumed_size
));
492 if (!consumed_eval
) {
496 consumed_eval
->parent
.type
= LTTNG_CONDITION_TYPE_SESSION_CONSUMED_SIZE
;
497 consumed_eval
->session_consumed
= consumed
;
498 consumed_eval
->parent
.serialize
= lttng_evaluation_session_consumed_size_serialize
;
499 consumed_eval
->parent
.destroy
= lttng_evaluation_session_consumed_size_destroy
;
501 return &consumed_eval
->parent
;
504 enum lttng_evaluation_status
505 lttng_evaluation_session_consumed_size_get_consumed_size(
506 const struct lttng_evaluation
*evaluation
,
507 uint64_t *session_consumed
)
509 struct lttng_evaluation_session_consumed_size
*consumed
;
510 enum lttng_evaluation_status status
= LTTNG_EVALUATION_STATUS_OK
;
512 if (!evaluation
|| !IS_CONSUMED_SIZE_EVALUATION(evaluation
) ||
514 status
= LTTNG_EVALUATION_STATUS_INVALID
;
518 consumed
= container_of(evaluation
, struct lttng_evaluation_session_consumed_size
,
520 *session_consumed
= consumed
->session_consumed
;