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>
20 #define IS_CONSUMED_SIZE_CONDITION(condition) \
21 (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)
26 static void lttng_condition_session_consumed_size_destroy(struct lttng_condition
*condition
)
28 struct lttng_condition_session_consumed_size
*consumed_size
;
30 consumed_size
= lttng::utils::container_of(condition
,
31 <tng_condition_session_consumed_size::parent
);
33 free(consumed_size
->session_name
);
37 static bool lttng_condition_session_consumed_size_validate(const struct lttng_condition
*condition
)
40 struct lttng_condition_session_consumed_size
*consumed
;
46 consumed
= lttng::utils::container_of(condition
,
47 <tng_condition_session_consumed_size::parent
);
48 if (!consumed
->session_name
) {
49 ERR("Invalid session consumed size condition: a target session name must be set.");
52 if (!consumed
->consumed_threshold_bytes
.set
) {
53 ERR("Invalid session consumed size condition: a threshold must be set.");
62 static int lttng_condition_session_consumed_size_serialize(const struct lttng_condition
*condition
,
63 struct lttng_payload
*payload
)
66 size_t session_name_len
;
67 struct lttng_condition_session_consumed_size
*consumed
;
68 struct lttng_condition_session_consumed_size_comm consumed_comm
;
70 if (!condition
|| !IS_CONSUMED_SIZE_CONDITION(condition
)) {
75 DBG("Serializing session consumed size condition");
76 consumed
= lttng::utils::container_of(condition
,
77 <tng_condition_session_consumed_size::parent
);
79 session_name_len
= strlen(consumed
->session_name
) + 1;
80 if (session_name_len
> LTTNG_NAME_MAX
) {
85 consumed_comm
.consumed_threshold_bytes
= consumed
->consumed_threshold_bytes
.value
;
86 consumed_comm
.session_name_len
= (uint32_t) session_name_len
;
88 ret
= lttng_dynamic_buffer_append(&payload
->buffer
, &consumed_comm
, sizeof(consumed_comm
));
93 ret
= lttng_dynamic_buffer_append(
94 &payload
->buffer
, consumed
->session_name
, session_name_len
);
102 static bool lttng_condition_session_consumed_size_is_equal(const struct lttng_condition
*_a
,
103 const struct lttng_condition
*_b
)
105 bool is_equal
= false;
106 struct lttng_condition_session_consumed_size
*a
, *b
;
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
);
111 if (a
->consumed_threshold_bytes
.set
&& b
->consumed_threshold_bytes
.set
) {
112 uint64_t a_value
, b_value
;
114 a_value
= a
->consumed_threshold_bytes
.value
;
115 b_value
= b
->consumed_threshold_bytes
.value
;
116 if (a_value
!= b_value
) {
121 LTTNG_ASSERT(a
->session_name
);
122 LTTNG_ASSERT(b
->session_name
);
123 if (strcmp(a
->session_name
, b
->session_name
) != 0) {
132 static enum lttng_error_code
133 lttng_condition_session_consumed_size_mi_serialize(const struct lttng_condition
*condition
,
134 struct mi_writer
*writer
)
137 enum lttng_error_code ret_code
;
138 enum lttng_condition_status status
;
139 const char *session_name
= nullptr;
140 uint64_t threshold_bytes
;
142 LTTNG_ASSERT(condition
);
143 LTTNG_ASSERT(writer
);
144 LTTNG_ASSERT(IS_CONSUMED_SIZE_CONDITION(condition
));
146 status
= lttng_condition_session_consumed_size_get_session_name(condition
, &session_name
);
147 LTTNG_ASSERT(status
== LTTNG_CONDITION_STATUS_OK
);
148 LTTNG_ASSERT(session_name
);
150 status
= lttng_condition_session_consumed_size_get_threshold(condition
, &threshold_bytes
);
151 LTTNG_ASSERT(status
== LTTNG_CONDITION_STATUS_OK
);
153 /* Open condition session consumed size element. */
154 ret
= mi_lttng_writer_open_element(writer
,
155 mi_lttng_element_condition_session_consumed_size
);
161 ret
= mi_lttng_writer_write_element_string(
162 writer
, mi_lttng_element_session_name
, session_name
);
167 /* Threshold in bytes. */
168 ret
= mi_lttng_writer_write_element_unsigned_int(
169 writer
, mi_lttng_element_condition_threshold_bytes
, threshold_bytes
);
174 /* Close condition session consumed size element. */
175 ret
= mi_lttng_writer_close_element(writer
);
184 ret_code
= LTTNG_ERR_MI_IO_FAIL
;
189 struct lttng_condition
*lttng_condition_session_consumed_size_create(void)
191 struct lttng_condition_session_consumed_size
*condition
;
193 condition
= zmalloc
<lttng_condition_session_consumed_size
>();
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
;
203 condition
->parent
.mi_serialize
= lttng_condition_session_consumed_size_mi_serialize
;
204 return &condition
->parent
;
207 static ssize_t
init_condition_from_payload(struct lttng_condition
*condition
,
208 struct lttng_payload_view
*src_view
)
210 ssize_t ret
, condition_size
;
211 enum lttng_condition_status status
;
212 const char *session_name
;
213 struct lttng_buffer_view session_name_view
;
214 const struct lttng_condition_session_consumed_size_comm
*condition_comm
;
215 struct lttng_payload_view condition_comm_view
=
216 lttng_payload_view_from_view(src_view
, 0, sizeof(*condition_comm
));
218 if (!lttng_payload_view_is_valid(&condition_comm_view
)) {
219 ERR("Failed to initialize from malformed condition buffer: buffer too short to contain header");
224 condition_comm
= (typeof(condition_comm
)) condition_comm_view
.buffer
.data
;
225 session_name_view
= lttng_buffer_view_from_view(
226 &src_view
->buffer
, sizeof(*condition_comm
), condition_comm
->session_name_len
);
228 if (condition_comm
->session_name_len
> LTTNG_NAME_MAX
) {
229 ERR("Failed to initialize from malformed condition buffer: name exceeds LTTNG_MAX_NAME");
234 if (!lttng_buffer_view_is_valid(&session_name_view
)) {
235 ERR("Failed to initialize from malformed condition buffer: buffer too short to contain element names");
240 status
= lttng_condition_session_consumed_size_set_threshold(
241 condition
, condition_comm
->consumed_threshold_bytes
);
242 if (status
!= LTTNG_CONDITION_STATUS_OK
) {
243 ERR("Failed to initialize session consumed size condition threshold");
248 session_name
= session_name_view
.data
;
249 if (*(session_name
+ condition_comm
->session_name_len
- 1) != '\0') {
250 ERR("Malformed session name encountered in condition buffer");
255 status
= lttng_condition_session_consumed_size_set_session_name(condition
, session_name
);
256 if (status
!= LTTNG_CONDITION_STATUS_OK
) {
257 ERR("Failed to set session consumed size condition's session name");
262 if (!lttng_condition_validate(condition
)) {
267 condition_size
= sizeof(*condition_comm
) + (ssize_t
) condition_comm
->session_name_len
;
268 ret
= condition_size
;
274 lttng_condition_session_consumed_size_create_from_payload(struct lttng_payload_view
*view
,
275 struct lttng_condition
**_condition
)
278 struct lttng_condition
*condition
= lttng_condition_session_consumed_size_create();
280 if (!_condition
|| !condition
) {
285 ret
= init_condition_from_payload(condition
, view
);
290 *_condition
= condition
;
293 lttng_condition_destroy(condition
);
297 static struct lttng_evaluation
*
298 create_evaluation_from_payload(const struct lttng_payload_view
*view
)
300 const struct lttng_evaluation_session_consumed_size_comm
*comm
=
301 (typeof(comm
)) view
->buffer
.data
;
302 struct lttng_evaluation
*evaluation
= nullptr;
304 if (view
->buffer
.size
< sizeof(*comm
)) {
308 evaluation
= lttng_evaluation_session_consumed_size_create(comm
->session_consumed
);
314 lttng_evaluation_session_consumed_size_create_from_payload(struct lttng_payload_view
*view
,
315 struct lttng_evaluation
**_evaluation
)
318 struct lttng_evaluation
*evaluation
= nullptr;
325 evaluation
= create_evaluation_from_payload(view
);
331 *_evaluation
= evaluation
;
332 ret
= sizeof(struct lttng_evaluation_session_consumed_size_comm
);
335 lttng_evaluation_destroy(evaluation
);
339 enum lttng_condition_status
340 lttng_condition_session_consumed_size_get_threshold(const struct lttng_condition
*condition
,
341 uint64_t *consumed_threshold_bytes
)
343 struct lttng_condition_session_consumed_size
*consumed
;
344 enum lttng_condition_status status
= LTTNG_CONDITION_STATUS_OK
;
346 if (!condition
|| !IS_CONSUMED_SIZE_CONDITION(condition
) || !consumed_threshold_bytes
) {
347 status
= LTTNG_CONDITION_STATUS_INVALID
;
351 consumed
= lttng::utils::container_of(condition
,
352 <tng_condition_session_consumed_size::parent
);
353 if (!consumed
->consumed_threshold_bytes
.set
) {
354 status
= LTTNG_CONDITION_STATUS_UNSET
;
357 *consumed_threshold_bytes
= consumed
->consumed_threshold_bytes
.value
;
362 enum lttng_condition_status
363 lttng_condition_session_consumed_size_set_threshold(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
)) {
370 status
= LTTNG_CONDITION_STATUS_INVALID
;
374 consumed
= lttng::utils::container_of(condition
,
375 <tng_condition_session_consumed_size::parent
);
376 consumed
->consumed_threshold_bytes
.set
= true;
377 consumed
->consumed_threshold_bytes
.value
= consumed_threshold_bytes
;
382 enum lttng_condition_status
383 lttng_condition_session_consumed_size_get_session_name(const struct lttng_condition
*condition
,
384 const char **session_name
)
386 struct lttng_condition_session_consumed_size
*consumed
;
387 enum lttng_condition_status status
= LTTNG_CONDITION_STATUS_OK
;
389 if (!condition
|| !IS_CONSUMED_SIZE_CONDITION(condition
) || !session_name
) {
390 status
= LTTNG_CONDITION_STATUS_INVALID
;
394 consumed
= lttng::utils::container_of(condition
,
395 <tng_condition_session_consumed_size::parent
);
396 if (!consumed
->session_name
) {
397 status
= LTTNG_CONDITION_STATUS_UNSET
;
400 *session_name
= consumed
->session_name
;
405 enum lttng_condition_status
406 lttng_condition_session_consumed_size_set_session_name(struct lttng_condition
*condition
,
407 const char *session_name
)
409 char *session_name_copy
;
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 strlen(session_name
) == 0) {
415 status
= LTTNG_CONDITION_STATUS_INVALID
;
419 consumed
= lttng::utils::container_of(condition
,
420 <tng_condition_session_consumed_size::parent
);
421 session_name_copy
= strdup(session_name
);
422 if (!session_name_copy
) {
423 status
= LTTNG_CONDITION_STATUS_ERROR
;
427 if (consumed
->session_name
) {
428 free(consumed
->session_name
);
430 consumed
->session_name
= session_name_copy
;
436 lttng_evaluation_session_consumed_size_serialize(const struct lttng_evaluation
*evaluation
,
437 struct lttng_payload
*payload
)
439 struct lttng_evaluation_session_consumed_size
*consumed
;
440 struct lttng_evaluation_session_consumed_size_comm comm
;
442 consumed
= lttng::utils::container_of(evaluation
,
443 <tng_evaluation_session_consumed_size::parent
);
444 comm
.session_consumed
= consumed
->session_consumed
;
445 return lttng_dynamic_buffer_append(&payload
->buffer
, &comm
, sizeof(comm
));
448 static void lttng_evaluation_session_consumed_size_destroy(struct lttng_evaluation
*evaluation
)
450 struct lttng_evaluation_session_consumed_size
*consumed
;
452 consumed
= lttng::utils::container_of(evaluation
,
453 <tng_evaluation_session_consumed_size::parent
);
457 struct lttng_evaluation
*lttng_evaluation_session_consumed_size_create(uint64_t consumed
)
459 struct lttng_evaluation_session_consumed_size
*consumed_eval
;
461 consumed_eval
= zmalloc
<lttng_evaluation_session_consumed_size
>();
462 if (!consumed_eval
) {
466 consumed_eval
->parent
.type
= LTTNG_CONDITION_TYPE_SESSION_CONSUMED_SIZE
;
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
;
471 return &consumed_eval
->parent
;
474 enum lttng_evaluation_status
475 lttng_evaluation_session_consumed_size_get_consumed_size(const struct lttng_evaluation
*evaluation
,
476 uint64_t *session_consumed
)
478 struct lttng_evaluation_session_consumed_size
*consumed
;
479 enum lttng_evaluation_status status
= LTTNG_EVALUATION_STATUS_OK
;
481 if (!evaluation
|| !IS_CONSUMED_SIZE_EVALUATION(evaluation
) || !session_consumed
) {
482 status
= LTTNG_EVALUATION_STATUS_INVALID
;
486 consumed
= lttng::utils::container_of(evaluation
,
487 <tng_evaluation_session_consumed_size::parent
);
488 *session_consumed
= consumed
->session_consumed
;