2 * Copyright (C) 2017 - Jérémie Galarneau <jeremie.galarneau@efficios.com>
4 * This library is free software; you can redistribute it and/or modify it
5 * under the terms of the GNU Lesser General Public License, version 2.1 only,
6 * as published by the Free Software Foundation.
8 * This library is distributed in the hope that it will be useful, but WITHOUT
9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
10 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
13 * You should have received a copy of the GNU Lesser General Public License
14 * along with this library; if not, write to the Free Software Foundation,
15 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
18 #include <lttng/condition/condition-internal.h>
19 #include <lttng/condition/session-consumed-size-internal.h>
20 #include <lttng/constant.h>
21 #include <common/macros.h>
22 #include <common/error.h>
28 #define IS_CONSUMED_SIZE_CONDITION(condition) ( \
29 lttng_condition_get_type(condition) == LTTNG_CONDITION_TYPE_SESSION_CONSUMED_SIZE \
32 #define IS_CONSUMED_SIZE_EVALUATION(evaluation) ( \
33 lttng_evaluation_get_type(evaluation) == LTTNG_CONDITION_TYPE_SESSION_CONSUMED_SIZE \
37 void lttng_condition_session_consumed_size_destroy(struct lttng_condition
*condition
)
39 struct lttng_condition_session_consumed_size
*consumed_size
;
41 consumed_size
= container_of(condition
,
42 struct lttng_condition_session_consumed_size
, parent
);
44 free(consumed_size
->session_name
);
49 bool lttng_condition_session_consumed_size_validate(
50 const struct lttng_condition
*condition
)
53 struct lttng_condition_session_consumed_size
*consumed
;
59 consumed
= container_of(condition
, struct lttng_condition_session_consumed_size
,
61 if (!consumed
->session_name
) {
62 ERR("Invalid session consumed size condition: a target session name must be set.");
65 if (!consumed
->consumed_threshold_bytes
.set
) {
66 ERR("Invalid session consumed size condition: a threshold must be set.");
76 int lttng_condition_session_consumed_size_serialize(
77 const struct lttng_condition
*condition
,
78 struct lttng_dynamic_buffer
*buf
)
81 size_t session_name_len
;
82 struct lttng_condition_session_consumed_size
*consumed
;
83 struct lttng_condition_session_consumed_size_comm consumed_comm
;
85 if (!condition
|| !IS_CONSUMED_SIZE_CONDITION(condition
)) {
90 DBG("Serializing session consumed size condition");
91 consumed
= container_of(condition
,
92 struct lttng_condition_session_consumed_size
,
95 session_name_len
= strlen(consumed
->session_name
) + 1;
96 if (session_name_len
> LTTNG_NAME_MAX
) {
101 consumed_comm
.consumed_threshold_bytes
=
102 consumed
->consumed_threshold_bytes
.value
;
103 consumed_comm
.session_name_len
= (uint32_t) session_name_len
;
105 ret
= lttng_dynamic_buffer_append(buf
, &consumed_comm
,
106 sizeof(consumed_comm
));
110 ret
= lttng_dynamic_buffer_append(buf
, consumed
->session_name
,
120 bool lttng_condition_session_consumed_size_is_equal(const struct lttng_condition
*_a
,
121 const struct lttng_condition
*_b
)
123 bool is_equal
= false;
124 struct lttng_condition_session_consumed_size
*a
, *b
;
126 a
= container_of(_a
, struct lttng_condition_session_consumed_size
, parent
);
127 b
= container_of(_b
, struct lttng_condition_session_consumed_size
, parent
);
129 if (a
->consumed_threshold_bytes
.set
&& b
->consumed_threshold_bytes
.set
) {
130 uint64_t a_value
, b_value
;
132 a_value
= a
->consumed_threshold_bytes
.value
;
133 b_value
= b
->consumed_threshold_bytes
.value
;
134 if (a_value
!= b_value
) {
139 assert(a
->session_name
);
140 assert(b
->session_name
);
141 if (strcmp(a
->session_name
, b
->session_name
)) {
150 struct lttng_condition
*lttng_condition_session_consumed_size_create(void)
152 struct lttng_condition_session_consumed_size
*condition
;
154 condition
= zmalloc(sizeof(struct lttng_condition_session_consumed_size
));
159 lttng_condition_init(&condition
->parent
, LTTNG_CONDITION_TYPE_SESSION_CONSUMED_SIZE
);
160 condition
->parent
.validate
= lttng_condition_session_consumed_size_validate
;
161 condition
->parent
.serialize
= lttng_condition_session_consumed_size_serialize
;
162 condition
->parent
.equal
= lttng_condition_session_consumed_size_is_equal
;
163 condition
->parent
.destroy
= lttng_condition_session_consumed_size_destroy
;
164 return &condition
->parent
;
168 ssize_t
init_condition_from_buffer(struct lttng_condition
*condition
,
169 const struct lttng_buffer_view
*src_view
)
171 ssize_t ret
, condition_size
;
172 enum lttng_condition_status status
;
173 const struct lttng_condition_session_consumed_size_comm
*condition_comm
;
174 const char *session_name
;
175 struct lttng_buffer_view names_view
;
177 if (src_view
->size
< sizeof(*condition_comm
)) {
178 ERR("Failed to initialize from malformed condition buffer: buffer too short to contain header");
183 condition_comm
= (const struct lttng_condition_session_consumed_size_comm
*) src_view
->data
;
184 names_view
= lttng_buffer_view_from_view(src_view
,
185 sizeof(*condition_comm
), -1);
187 if (condition_comm
->session_name_len
> LTTNG_NAME_MAX
) {
188 ERR("Failed to initialize from malformed condition buffer: name exceeds LTTNG_MAX_NAME");
193 if (names_view
.size
< condition_comm
->session_name_len
) {
194 ERR("Failed to initialize from malformed condition buffer: buffer too short to contain element names");
199 status
= lttng_condition_session_consumed_size_set_threshold(condition
,
200 condition_comm
->consumed_threshold_bytes
);
201 if (status
!= LTTNG_CONDITION_STATUS_OK
) {
202 ERR("Failed to initialize session consumed size condition threshold");
207 session_name
= names_view
.data
;
208 if (*(session_name
+ condition_comm
->session_name_len
- 1) != '\0') {
209 ERR("Malformed session name encountered in condition buffer");
214 status
= lttng_condition_session_consumed_size_set_session_name(condition
,
216 if (status
!= LTTNG_CONDITION_STATUS_OK
) {
217 ERR("Failed to set session consumed size condition's session name");
222 if (!lttng_condition_validate(condition
)) {
227 condition_size
= sizeof(*condition_comm
) +
228 (ssize_t
) condition_comm
->session_name_len
;
229 ret
= condition_size
;
235 ssize_t
lttng_condition_session_consumed_size_create_from_buffer(
236 const struct lttng_buffer_view
*view
,
237 struct lttng_condition
**_condition
)
240 struct lttng_condition
*condition
=
241 lttng_condition_session_consumed_size_create();
243 if (!_condition
|| !condition
) {
248 ret
= init_condition_from_buffer(condition
, view
);
253 *_condition
= condition
;
256 lttng_condition_destroy(condition
);
261 struct lttng_evaluation
*create_evaluation_from_buffer(
262 const struct lttng_buffer_view
*view
)
264 const struct lttng_evaluation_session_consumed_size_comm
*comm
=
265 (const struct lttng_evaluation_session_consumed_size_comm
*) view
->data
;
266 struct lttng_evaluation
*evaluation
= NULL
;
268 if (view
->size
< sizeof(*comm
)) {
272 evaluation
= lttng_evaluation_session_consumed_size_create(
273 comm
->session_consumed
);
279 ssize_t
lttng_evaluation_session_consumed_size_create_from_buffer(
280 const struct lttng_buffer_view
*view
,
281 struct lttng_evaluation
**_evaluation
)
284 struct lttng_evaluation
*evaluation
= NULL
;
291 evaluation
= create_evaluation_from_buffer(view
);
297 *_evaluation
= evaluation
;
298 ret
= sizeof(struct lttng_evaluation_session_consumed_size_comm
);
301 lttng_evaluation_destroy(evaluation
);
305 enum lttng_condition_status
306 lttng_condition_session_consumed_size_get_threshold(
307 const struct lttng_condition
*condition
,
308 uint64_t *consumed_threshold_bytes
)
310 struct lttng_condition_session_consumed_size
*consumed
;
311 enum lttng_condition_status status
= LTTNG_CONDITION_STATUS_OK
;
313 if (!condition
|| !IS_CONSUMED_SIZE_CONDITION(condition
) || !consumed_threshold_bytes
) {
314 status
= LTTNG_CONDITION_STATUS_INVALID
;
318 consumed
= container_of(condition
, struct lttng_condition_session_consumed_size
,
320 if (!consumed
->consumed_threshold_bytes
.set
) {
321 status
= LTTNG_CONDITION_STATUS_UNSET
;
324 *consumed_threshold_bytes
= consumed
->consumed_threshold_bytes
.value
;
329 enum lttng_condition_status
330 lttng_condition_session_consumed_size_set_threshold(
331 struct lttng_condition
*condition
, uint64_t consumed_threshold_bytes
)
333 struct lttng_condition_session_consumed_size
*consumed
;
334 enum lttng_condition_status status
= LTTNG_CONDITION_STATUS_OK
;
336 if (!condition
|| !IS_CONSUMED_SIZE_CONDITION(condition
)) {
337 status
= LTTNG_CONDITION_STATUS_INVALID
;
341 consumed
= container_of(condition
, struct lttng_condition_session_consumed_size
,
343 consumed
->consumed_threshold_bytes
.set
= true;
344 consumed
->consumed_threshold_bytes
.value
= consumed_threshold_bytes
;
349 enum lttng_condition_status
350 lttng_condition_session_consumed_size_get_session_name(
351 const struct lttng_condition
*condition
,
352 const char **session_name
)
354 struct lttng_condition_session_consumed_size
*consumed
;
355 enum lttng_condition_status status
= LTTNG_CONDITION_STATUS_OK
;
357 if (!condition
|| !IS_CONSUMED_SIZE_CONDITION(condition
) || !session_name
) {
358 status
= LTTNG_CONDITION_STATUS_INVALID
;
362 consumed
= container_of(condition
, struct lttng_condition_session_consumed_size
,
364 if (!consumed
->session_name
) {
365 status
= LTTNG_CONDITION_STATUS_UNSET
;
368 *session_name
= consumed
->session_name
;
373 enum lttng_condition_status
374 lttng_condition_session_consumed_size_set_session_name(
375 struct lttng_condition
*condition
, const char *session_name
)
377 char *session_name_copy
;
378 struct lttng_condition_session_consumed_size
*consumed
;
379 enum lttng_condition_status status
= LTTNG_CONDITION_STATUS_OK
;
381 if (!condition
|| !IS_CONSUMED_SIZE_CONDITION(condition
) ||
382 !session_name
|| strlen(session_name
) == 0) {
383 status
= LTTNG_CONDITION_STATUS_INVALID
;
387 consumed
= container_of(condition
, struct lttng_condition_session_consumed_size
,
389 session_name_copy
= strdup(session_name
);
390 if (!session_name_copy
) {
391 status
= LTTNG_CONDITION_STATUS_ERROR
;
395 if (consumed
->session_name
) {
396 free(consumed
->session_name
);
398 consumed
->session_name
= session_name_copy
;
404 int lttng_evaluation_session_consumed_size_serialize(
405 const struct lttng_evaluation
*evaluation
,
406 struct lttng_dynamic_buffer
*buf
)
408 struct lttng_evaluation_session_consumed_size
*consumed
;
409 struct lttng_evaluation_session_consumed_size_comm comm
;
411 consumed
= container_of(evaluation
, struct lttng_evaluation_session_consumed_size
,
413 comm
.session_consumed
= consumed
->session_consumed
;
414 return lttng_dynamic_buffer_append(buf
, &comm
, sizeof(comm
));
418 void lttng_evaluation_session_consumed_size_destroy(
419 struct lttng_evaluation
*evaluation
)
421 struct lttng_evaluation_session_consumed_size
*consumed
;
423 consumed
= container_of(evaluation
, struct lttng_evaluation_session_consumed_size
,
429 struct lttng_evaluation
*lttng_evaluation_session_consumed_size_create(
432 struct lttng_evaluation_session_consumed_size
*consumed_eval
;
434 consumed_eval
= zmalloc(sizeof(struct lttng_evaluation_session_consumed_size
));
435 if (!consumed_eval
) {
439 consumed_eval
->parent
.type
= LTTNG_CONDITION_TYPE_SESSION_CONSUMED_SIZE
;
440 consumed_eval
->session_consumed
= consumed
;
441 consumed_eval
->parent
.serialize
= lttng_evaluation_session_consumed_size_serialize
;
442 consumed_eval
->parent
.destroy
= lttng_evaluation_session_consumed_size_destroy
;
444 return &consumed_eval
->parent
;
447 enum lttng_evaluation_status
448 lttng_evaluation_session_consumed_size_get_consumed_size(
449 const struct lttng_evaluation
*evaluation
,
450 uint64_t *session_consumed
)
452 struct lttng_evaluation_session_consumed_size
*consumed
;
453 enum lttng_evaluation_status status
= LTTNG_EVALUATION_STATUS_OK
;
455 if (!evaluation
|| !IS_CONSUMED_SIZE_EVALUATION(evaluation
) ||
457 status
= LTTNG_EVALUATION_STATUS_INVALID
;
461 consumed
= container_of(evaluation
, struct lttng_evaluation_session_consumed_size
,
463 *session_consumed
= consumed
->session_consumed
;