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 buffer condition: a target session name must be set.");
65 if (!consumed
->consumed_threshold_bytes
.set
) {
66 ERR("Invalid session 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 if ((a
->session_name
&& !b
->session_name
) ||
140 (!a
->session_name
&& b
->session_name
)) {
149 struct lttng_condition
*lttng_condition_session_consumed_size_create(void)
151 struct lttng_condition_session_consumed_size
*condition
;
153 condition
= zmalloc(sizeof(struct lttng_condition_session_consumed_size
));
158 lttng_condition_init(&condition
->parent
, LTTNG_CONDITION_TYPE_SESSION_CONSUMED_SIZE
);
159 condition
->parent
.validate
= lttng_condition_session_consumed_size_validate
;
160 condition
->parent
.serialize
= lttng_condition_session_consumed_size_serialize
;
161 condition
->parent
.equal
= lttng_condition_session_consumed_size_is_equal
;
162 condition
->parent
.destroy
= lttng_condition_session_consumed_size_destroy
;
163 return &condition
->parent
;
167 ssize_t
init_condition_from_buffer(struct lttng_condition
*condition
,
168 const struct lttng_buffer_view
*src_view
)
170 ssize_t ret
, condition_size
;
171 enum lttng_condition_status status
;
172 const struct lttng_condition_session_consumed_size_comm
*condition_comm
;
173 const char *session_name
;
174 struct lttng_buffer_view names_view
;
176 if (src_view
->size
< sizeof(*condition_comm
)) {
177 ERR("Failed to initialize from malformed condition buffer: buffer too short to contain header");
182 condition_comm
= (const struct lttng_condition_session_consumed_size_comm
*) src_view
->data
;
183 names_view
= lttng_buffer_view_from_view(src_view
,
184 sizeof(*condition_comm
), -1);
186 if (condition_comm
->session_name_len
> LTTNG_NAME_MAX
) {
187 ERR("Failed to initialize from malformed condition buffer: name exceeds LTTNG_MAX_NAME");
192 if (names_view
.size
< condition_comm
->session_name_len
) {
193 ERR("Failed to initialize from malformed condition buffer: buffer too short to contain element names");
198 status
= lttng_condition_session_consumed_size_set_threshold(condition
,
199 condition_comm
->consumed_threshold_bytes
);
200 if (status
!= LTTNG_CONDITION_STATUS_OK
) {
201 ERR("Failed to initialize session consumed condition threshold");
206 session_name
= names_view
.data
;
207 if (*(session_name
+ condition_comm
->session_name_len
- 1) != '\0') {
208 ERR("Malformed session name encountered in condition buffer");
213 status
= lttng_condition_session_consumed_size_set_session_name(condition
,
215 if (status
!= LTTNG_CONDITION_STATUS_OK
) {
216 ERR("Failed to set buffer consumed session name");
221 if (!lttng_condition_validate(condition
)) {
226 condition_size
= sizeof(*condition_comm
) +
227 (ssize_t
) condition_comm
->session_name_len
;
228 ret
= condition_size
;
234 ssize_t
lttng_condition_session_consumed_size_create_from_buffer(
235 const struct lttng_buffer_view
*view
,
236 struct lttng_condition
**_condition
)
239 struct lttng_condition
*condition
=
240 lttng_condition_session_consumed_size_create();
242 if (!_condition
|| !condition
) {
247 ret
= init_condition_from_buffer(condition
, view
);
252 *_condition
= condition
;
255 lttng_condition_destroy(condition
);
260 struct lttng_evaluation
*create_evaluation_from_buffer(
261 const struct lttng_buffer_view
*view
)
263 const struct lttng_evaluation_session_consumed_size_comm
*comm
=
264 (const struct lttng_evaluation_session_consumed_size_comm
*) view
->data
;
265 struct lttng_evaluation
*evaluation
= NULL
;
267 if (view
->size
< sizeof(*comm
)) {
271 evaluation
= lttng_evaluation_session_consumed_size_create(
272 comm
->session_consumed
);
278 ssize_t
lttng_evaluation_session_consumed_size_create_from_buffer(
279 const struct lttng_buffer_view
*view
,
280 struct lttng_evaluation
**_evaluation
)
283 struct lttng_evaluation
*evaluation
= NULL
;
290 evaluation
= create_evaluation_from_buffer(view
);
296 *_evaluation
= evaluation
;
297 ret
= sizeof(struct lttng_evaluation_session_consumed_size_comm
);
300 lttng_evaluation_destroy(evaluation
);
304 enum lttng_condition_status
305 lttng_condition_session_consumed_size_get_threshold(
306 const struct lttng_condition
*condition
,
307 uint64_t *consumed_threshold_bytes
)
309 struct lttng_condition_session_consumed_size
*consumed
;
310 enum lttng_condition_status status
= LTTNG_CONDITION_STATUS_OK
;
312 if (!condition
|| !IS_CONSUMED_SIZE_CONDITION(condition
) || !consumed_threshold_bytes
) {
313 status
= LTTNG_CONDITION_STATUS_INVALID
;
317 consumed
= container_of(condition
, struct lttng_condition_session_consumed_size
,
319 if (!consumed
->consumed_threshold_bytes
.set
) {
320 status
= LTTNG_CONDITION_STATUS_UNSET
;
323 *consumed_threshold_bytes
= consumed
->consumed_threshold_bytes
.value
;
328 enum lttng_condition_status
329 lttng_condition_session_consumed_size_set_threshold(
330 struct lttng_condition
*condition
, uint64_t consumed_threshold_bytes
)
332 struct lttng_condition_session_consumed_size
*consumed
;
333 enum lttng_condition_status status
= LTTNG_CONDITION_STATUS_OK
;
335 if (!condition
|| !IS_CONSUMED_SIZE_CONDITION(condition
)) {
336 status
= LTTNG_CONDITION_STATUS_INVALID
;
340 consumed
= container_of(condition
, struct lttng_condition_session_consumed_size
,
342 consumed
->consumed_threshold_bytes
.set
= true;
343 consumed
->consumed_threshold_bytes
.value
= consumed_threshold_bytes
;
348 enum lttng_condition_status
349 lttng_condition_session_consumed_size_get_session_name(
350 const struct lttng_condition
*condition
,
351 const char **session_name
)
353 struct lttng_condition_session_consumed_size
*consumed
;
354 enum lttng_condition_status status
= LTTNG_CONDITION_STATUS_OK
;
356 if (!condition
|| !IS_CONSUMED_SIZE_CONDITION(condition
) || !session_name
) {
357 status
= LTTNG_CONDITION_STATUS_INVALID
;
361 consumed
= container_of(condition
, struct lttng_condition_session_consumed_size
,
363 if (!consumed
->session_name
) {
364 status
= LTTNG_CONDITION_STATUS_UNSET
;
367 *session_name
= consumed
->session_name
;
372 enum lttng_condition_status
373 lttng_condition_session_consumed_size_set_session_name(
374 struct lttng_condition
*condition
, const char *session_name
)
376 char *session_name_copy
;
377 struct lttng_condition_session_consumed_size
*consumed
;
378 enum lttng_condition_status status
= LTTNG_CONDITION_STATUS_OK
;
380 if (!condition
|| !IS_CONSUMED_SIZE_CONDITION(condition
) ||
381 !session_name
|| strlen(session_name
) == 0) {
382 status
= LTTNG_CONDITION_STATUS_INVALID
;
386 consumed
= container_of(condition
, struct lttng_condition_session_consumed_size
,
388 session_name_copy
= strdup(session_name
);
389 if (!session_name_copy
) {
390 status
= LTTNG_CONDITION_STATUS_ERROR
;
394 if (consumed
->session_name
) {
395 free(consumed
->session_name
);
397 consumed
->session_name
= session_name_copy
;
403 int lttng_evaluation_session_consumed_size_serialize(
404 struct lttng_evaluation
*evaluation
,
405 struct lttng_dynamic_buffer
*buf
)
407 struct lttng_evaluation_session_consumed_size
*consumed
;
408 struct lttng_evaluation_session_consumed_size_comm comm
;
410 consumed
= container_of(evaluation
, struct lttng_evaluation_session_consumed_size
,
412 comm
.session_consumed
= consumed
->session_consumed
;
413 return lttng_dynamic_buffer_append(buf
, &comm
, sizeof(comm
));
417 void lttng_evaluation_session_consumed_size_destroy(
418 struct lttng_evaluation
*evaluation
)
420 struct lttng_evaluation_session_consumed_size
*consumed
;
422 consumed
= container_of(evaluation
, struct lttng_evaluation_session_consumed_size
,
428 struct lttng_evaluation
*lttng_evaluation_session_consumed_size_create(
431 struct lttng_evaluation_session_consumed_size
*consumed_eval
;
433 consumed_eval
= zmalloc(sizeof(struct lttng_evaluation_session_consumed_size
));
434 if (!consumed_eval
) {
438 consumed_eval
->parent
.type
= LTTNG_CONDITION_TYPE_SESSION_CONSUMED_SIZE
;
439 consumed_eval
->session_consumed
= consumed
;
440 consumed_eval
->parent
.serialize
= lttng_evaluation_session_consumed_size_serialize
;
441 consumed_eval
->parent
.destroy
= lttng_evaluation_session_consumed_size_destroy
;
443 return &consumed_eval
->parent
;
446 enum lttng_evaluation_status
447 lttng_evaluation_session_consumed_size_get_consumed_size(
448 const struct lttng_evaluation
*evaluation
,
449 uint64_t *session_consumed
)
451 struct lttng_evaluation_session_consumed_size
*consumed
;
452 enum lttng_evaluation_status status
= LTTNG_EVALUATION_STATUS_OK
;
454 if (!evaluation
|| !IS_CONSUMED_SIZE_EVALUATION(evaluation
) ||
456 status
= LTTNG_EVALUATION_STATUS_INVALID
;
460 consumed
= container_of(evaluation
, struct lttng_evaluation_session_consumed_size
,
462 *session_consumed
= consumed
->session_consumed
;