2 * Copyright (C) 2017 Jérémie Galarneau <jeremie.galarneau@efficios.com>
4 * SPDX-License-Identifier: LGPL-2.1-only
8 #include <common/error.hpp>
9 #include <common/macros.hpp>
10 #include <common/mi-lttng.hpp>
12 #include <lttng/condition/condition-internal.hpp>
13 #include <lttng/condition/session-consumed-size-internal.hpp>
14 #include <lttng/constant.h>
18 #define IS_CONSUMED_SIZE_CONDITION(condition) ( \
19 lttng_condition_get_type(condition) == LTTNG_CONDITION_TYPE_SESSION_CONSUMED_SIZE \
22 #define IS_CONSUMED_SIZE_EVALUATION(evaluation) ( \
23 lttng_evaluation_get_type(evaluation) == LTTNG_CONDITION_TYPE_SESSION_CONSUMED_SIZE \
27 void lttng_condition_session_consumed_size_destroy(struct lttng_condition
*condition
)
29 struct lttng_condition_session_consumed_size
*consumed_size
;
31 consumed_size
= lttng::utils::container_of(condition
,
32 <tng_condition_session_consumed_size::parent
);
34 free(consumed_size
->session_name
);
39 bool lttng_condition_session_consumed_size_validate(
40 const struct lttng_condition
*condition
)
43 struct lttng_condition_session_consumed_size
*consumed
;
49 consumed
= lttng::utils::container_of(condition
,
50 <tng_condition_session_consumed_size::parent
);
51 if (!consumed
->session_name
) {
52 ERR("Invalid session consumed size condition: a target session name must be set.");
55 if (!consumed
->consumed_threshold_bytes
.set
) {
56 ERR("Invalid session consumed size condition: a threshold must be set.");
66 int lttng_condition_session_consumed_size_serialize(
67 const struct lttng_condition
*condition
,
68 struct lttng_payload
*payload
)
71 size_t session_name_len
;
72 struct lttng_condition_session_consumed_size
*consumed
;
73 struct lttng_condition_session_consumed_size_comm consumed_comm
;
75 if (!condition
|| !IS_CONSUMED_SIZE_CONDITION(condition
)) {
80 DBG("Serializing session consumed size condition");
81 consumed
= lttng::utils::container_of(condition
,
82 <tng_condition_session_consumed_size::parent
);
84 session_name_len
= strlen(consumed
->session_name
) + 1;
85 if (session_name_len
> LTTNG_NAME_MAX
) {
90 consumed_comm
.consumed_threshold_bytes
=
91 consumed
->consumed_threshold_bytes
.value
;
92 consumed_comm
.session_name_len
= (uint32_t) session_name_len
;
94 ret
= lttng_dynamic_buffer_append(&payload
->buffer
, &consumed_comm
,
95 sizeof(consumed_comm
));
100 ret
= lttng_dynamic_buffer_append(&payload
->buffer
, consumed
->session_name
,
110 bool lttng_condition_session_consumed_size_is_equal(const struct lttng_condition
*_a
,
111 const struct lttng_condition
*_b
)
113 bool is_equal
= false;
114 struct lttng_condition_session_consumed_size
*a
, *b
;
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
);
119 if (a
->consumed_threshold_bytes
.set
&& b
->consumed_threshold_bytes
.set
) {
120 uint64_t a_value
, b_value
;
122 a_value
= a
->consumed_threshold_bytes
.value
;
123 b_value
= b
->consumed_threshold_bytes
.value
;
124 if (a_value
!= b_value
) {
129 LTTNG_ASSERT(a
->session_name
);
130 LTTNG_ASSERT(b
->session_name
);
131 if (strcmp(a
->session_name
, b
->session_name
)) {
141 enum lttng_error_code
lttng_condition_session_consumed_size_mi_serialize(
142 const struct lttng_condition
*condition
,
143 struct mi_writer
*writer
)
146 enum lttng_error_code ret_code
;
147 enum lttng_condition_status status
;
148 const char *session_name
= NULL
;
149 uint64_t threshold_bytes
;
151 LTTNG_ASSERT(condition
);
152 LTTNG_ASSERT(writer
);
153 LTTNG_ASSERT(IS_CONSUMED_SIZE_CONDITION(condition
));
155 status
= lttng_condition_session_consumed_size_get_session_name(
156 condition
, &session_name
);
157 LTTNG_ASSERT(status
== LTTNG_CONDITION_STATUS_OK
);
158 LTTNG_ASSERT(session_name
);
160 status
= lttng_condition_session_consumed_size_get_threshold(
161 condition
, &threshold_bytes
);
162 LTTNG_ASSERT(status
== LTTNG_CONDITION_STATUS_OK
);
164 /* Open condition session consumed size element. */
165 ret
= mi_lttng_writer_open_element(writer
,
166 mi_lttng_element_condition_session_consumed_size
);
172 ret
= mi_lttng_writer_write_element_string(
173 writer
, mi_lttng_element_session_name
, session_name
);
178 /* Threshold in bytes. */
179 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
180 mi_lttng_element_condition_threshold_bytes
,
186 /* Close condition session consumed size element. */
187 ret
= mi_lttng_writer_close_element(writer
);
196 ret_code
= LTTNG_ERR_MI_IO_FAIL
;
201 struct lttng_condition
*lttng_condition_session_consumed_size_create(void)
203 struct lttng_condition_session_consumed_size
*condition
;
205 condition
= zmalloc
<lttng_condition_session_consumed_size
>();
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
;
215 condition
->parent
.mi_serialize
= lttng_condition_session_consumed_size_mi_serialize
;
216 return &condition
->parent
;
220 ssize_t
init_condition_from_payload(struct lttng_condition
*condition
,
221 struct lttng_payload_view
*src_view
)
223 ssize_t ret
, condition_size
;
224 enum lttng_condition_status status
;
225 const char *session_name
;
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
));
231 if (!lttng_payload_view_is_valid(&condition_comm_view
)) {
232 ERR("Failed to initialize from malformed condition buffer: buffer too short to contain header");
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
);
241 if (condition_comm
->session_name_len
> LTTNG_NAME_MAX
) {
242 ERR("Failed to initialize from malformed condition buffer: name exceeds LTTNG_MAX_NAME");
247 if (!lttng_buffer_view_is_valid(&session_name_view
)) {
248 ERR("Failed to initialize from malformed condition buffer: buffer too short to contain element names");
253 status
= lttng_condition_session_consumed_size_set_threshold(condition
,
254 condition_comm
->consumed_threshold_bytes
);
255 if (status
!= LTTNG_CONDITION_STATUS_OK
) {
256 ERR("Failed to initialize session consumed size condition threshold");
261 session_name
= session_name_view
.data
;
262 if (*(session_name
+ condition_comm
->session_name_len
- 1) != '\0') {
263 ERR("Malformed session name encountered in condition buffer");
268 status
= lttng_condition_session_consumed_size_set_session_name(condition
,
270 if (status
!= LTTNG_CONDITION_STATUS_OK
) {
271 ERR("Failed to set session consumed size condition's session name");
276 if (!lttng_condition_validate(condition
)) {
281 condition_size
= sizeof(*condition_comm
) +
282 (ssize_t
) condition_comm
->session_name_len
;
283 ret
= condition_size
;
288 ssize_t
lttng_condition_session_consumed_size_create_from_payload(
289 struct lttng_payload_view
*view
,
290 struct lttng_condition
**_condition
)
293 struct lttng_condition
*condition
=
294 lttng_condition_session_consumed_size_create();
296 if (!_condition
|| !condition
) {
301 ret
= init_condition_from_payload(condition
, view
);
306 *_condition
= condition
;
309 lttng_condition_destroy(condition
);
314 struct lttng_evaluation
*create_evaluation_from_payload(
315 const struct lttng_payload_view
*view
)
317 const struct lttng_evaluation_session_consumed_size_comm
*comm
=
318 (typeof(comm
)) view
->buffer
.data
;
319 struct lttng_evaluation
*evaluation
= NULL
;
321 if (view
->buffer
.size
< sizeof(*comm
)) {
325 evaluation
= lttng_evaluation_session_consumed_size_create(
326 comm
->session_consumed
);
331 ssize_t
lttng_evaluation_session_consumed_size_create_from_payload(
332 struct lttng_payload_view
*view
,
333 struct lttng_evaluation
**_evaluation
)
336 struct lttng_evaluation
*evaluation
= NULL
;
343 evaluation
= create_evaluation_from_payload(view
);
349 *_evaluation
= evaluation
;
350 ret
= sizeof(struct lttng_evaluation_session_consumed_size_comm
);
353 lttng_evaluation_destroy(evaluation
);
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
)
362 struct lttng_condition_session_consumed_size
*consumed
;
363 enum lttng_condition_status status
= LTTNG_CONDITION_STATUS_OK
;
365 if (!condition
|| !IS_CONSUMED_SIZE_CONDITION(condition
) || !consumed_threshold_bytes
) {
366 status
= LTTNG_CONDITION_STATUS_INVALID
;
370 consumed
= lttng::utils::container_of(condition
,
371 <tng_condition_session_consumed_size::parent
);
372 if (!consumed
->consumed_threshold_bytes
.set
) {
373 status
= LTTNG_CONDITION_STATUS_UNSET
;
376 *consumed_threshold_bytes
= consumed
->consumed_threshold_bytes
.value
;
381 enum lttng_condition_status
382 lttng_condition_session_consumed_size_set_threshold(
383 struct lttng_condition
*condition
, uint64_t consumed_threshold_bytes
)
385 struct lttng_condition_session_consumed_size
*consumed
;
386 enum lttng_condition_status status
= LTTNG_CONDITION_STATUS_OK
;
388 if (!condition
|| !IS_CONSUMED_SIZE_CONDITION(condition
)) {
389 status
= LTTNG_CONDITION_STATUS_INVALID
;
393 consumed
= lttng::utils::container_of(condition
,
394 <tng_condition_session_consumed_size::parent
);
395 consumed
->consumed_threshold_bytes
.set
= true;
396 consumed
->consumed_threshold_bytes
.value
= consumed_threshold_bytes
;
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
)
406 struct lttng_condition_session_consumed_size
*consumed
;
407 enum lttng_condition_status status
= LTTNG_CONDITION_STATUS_OK
;
409 if (!condition
|| !IS_CONSUMED_SIZE_CONDITION(condition
) || !session_name
) {
410 status
= LTTNG_CONDITION_STATUS_INVALID
;
414 consumed
= lttng::utils::container_of(condition
,
415 <tng_condition_session_consumed_size::parent
);
416 if (!consumed
->session_name
) {
417 status
= LTTNG_CONDITION_STATUS_UNSET
;
420 *session_name
= consumed
->session_name
;
425 enum lttng_condition_status
426 lttng_condition_session_consumed_size_set_session_name(
427 struct lttng_condition
*condition
, const char *session_name
)
429 char *session_name_copy
;
430 struct lttng_condition_session_consumed_size
*consumed
;
431 enum lttng_condition_status status
= LTTNG_CONDITION_STATUS_OK
;
433 if (!condition
|| !IS_CONSUMED_SIZE_CONDITION(condition
) ||
434 !session_name
|| strlen(session_name
) == 0) {
435 status
= LTTNG_CONDITION_STATUS_INVALID
;
439 consumed
= lttng::utils::container_of(condition
,
440 <tng_condition_session_consumed_size::parent
);
441 session_name_copy
= strdup(session_name
);
442 if (!session_name_copy
) {
443 status
= LTTNG_CONDITION_STATUS_ERROR
;
447 if (consumed
->session_name
) {
448 free(consumed
->session_name
);
450 consumed
->session_name
= session_name_copy
;
456 int lttng_evaluation_session_consumed_size_serialize(
457 const struct lttng_evaluation
*evaluation
,
458 struct lttng_payload
*payload
)
460 struct lttng_evaluation_session_consumed_size
*consumed
;
461 struct lttng_evaluation_session_consumed_size_comm comm
;
463 consumed
= lttng::utils::container_of(evaluation
,
464 <tng_evaluation_session_consumed_size::parent
);
465 comm
.session_consumed
= consumed
->session_consumed
;
466 return lttng_dynamic_buffer_append(
467 &payload
->buffer
, &comm
, sizeof(comm
));
471 void lttng_evaluation_session_consumed_size_destroy(
472 struct lttng_evaluation
*evaluation
)
474 struct lttng_evaluation_session_consumed_size
*consumed
;
476 consumed
= lttng::utils::container_of(evaluation
,
477 <tng_evaluation_session_consumed_size::parent
);
481 struct lttng_evaluation
*lttng_evaluation_session_consumed_size_create(
484 struct lttng_evaluation_session_consumed_size
*consumed_eval
;
486 consumed_eval
= zmalloc
<lttng_evaluation_session_consumed_size
>();
487 if (!consumed_eval
) {
491 consumed_eval
->parent
.type
= LTTNG_CONDITION_TYPE_SESSION_CONSUMED_SIZE
;
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
;
496 return &consumed_eval
->parent
;
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
)
504 struct lttng_evaluation_session_consumed_size
*consumed
;
505 enum lttng_evaluation_status status
= LTTNG_EVALUATION_STATUS_OK
;
507 if (!evaluation
|| !IS_CONSUMED_SIZE_EVALUATION(evaluation
) ||
509 status
= LTTNG_EVALUATION_STATUS_INVALID
;
513 consumed
= lttng::utils::container_of(evaluation
,
514 <tng_evaluation_session_consumed_size::parent
);
515 *session_consumed
= consumed
->session_consumed
;