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 <common/macros.h>
21 #include <common/error.h>
27 #define IS_CONSUMED_SIZE_CONDITION(condition) ( \
28 lttng_condition_get_type(condition) == LTTNG_CONDITION_TYPE_SESSION_CONSUMED_SIZE \
31 #define IS_CONSUMED_SIZE_EVALUATION(evaluation) ( \
32 lttng_evaluation_get_type(evaluation) == LTTNG_CONDITION_TYPE_SESSION_CONSUMED_SIZE \
36 void lttng_condition_session_consumed_size_destroy(struct lttng_condition
*condition
)
38 struct lttng_condition_session_consumed_size
*consumed_size
;
40 consumed_size
= container_of(condition
,
41 struct lttng_condition_session_consumed_size
, parent
);
43 free(consumed_size
->session_name
);
48 bool lttng_condition_session_consumed_size_validate(
49 const struct lttng_condition
*condition
)
52 struct lttng_condition_session_consumed_size
*consumed
;
58 consumed
= container_of(condition
, struct lttng_condition_session_consumed_size
,
60 if (!consumed
->session_name
) {
61 ERR("Invalid buffer condition: a target session name must be set.");
64 if (!consumed
->consumed_threshold_bytes
.set
) {
65 ERR("Invalid session condition: a threshold must be set.");
75 ssize_t
lttng_condition_session_consumed_size_serialize(
76 const struct lttng_condition
*condition
, char *buf
)
78 struct lttng_condition_session_consumed_size
*consumed
;
80 size_t session_name_len
;
82 if (!condition
|| !IS_CONSUMED_SIZE_CONDITION(condition
)) {
87 DBG("Serializing session consumed condition");
88 consumed
= container_of(condition
, struct lttng_condition_session_consumed_size
,
90 size
= sizeof(struct lttng_condition_session_consumed_size_comm
);
91 session_name_len
= strlen(consumed
->session_name
) + 1;
92 if (session_name_len
> LTTNG_NAME_MAX
) {
96 size
+= session_name_len
;
98 struct lttng_condition_session_consumed_size_comm consumed_comm
= {
99 .consumed_threshold_bytes
= consumed
->consumed_threshold_bytes
.value
,
100 .session_name_len
= session_name_len
,
103 memcpy(buf
, &consumed_comm
, sizeof(consumed_comm
));
104 buf
+= sizeof(consumed_comm
);
105 memcpy(buf
, consumed
->session_name
, session_name_len
);
106 buf
+= session_name_len
;
114 bool lttng_condition_session_consumed_size_is_equal(const struct lttng_condition
*_a
,
115 const struct lttng_condition
*_b
)
117 bool is_equal
= false;
118 struct lttng_condition_session_consumed_size
*a
, *b
;
120 a
= container_of(_a
, struct lttng_condition_session_consumed_size
, parent
);
121 b
= container_of(_b
, struct lttng_condition_session_consumed_size
, parent
);
123 if (a
->consumed_threshold_bytes
.set
&& b
->consumed_threshold_bytes
.set
) {
124 uint64_t a_value
, b_value
;
126 a_value
= a
->consumed_threshold_bytes
.value
;
127 b_value
= b
->consumed_threshold_bytes
.value
;
128 if (a_value
!= b_value
) {
133 if ((a
->session_name
&& !b
->session_name
) ||
134 (!a
->session_name
&& b
->session_name
)) {
143 struct lttng_condition
*lttng_condition_session_consumed_size_create(void)
145 struct lttng_condition_session_consumed_size
*condition
;
147 condition
= zmalloc(sizeof(struct lttng_condition_session_consumed_size
));
152 lttng_condition_init(&condition
->parent
, LTTNG_CONDITION_TYPE_SESSION_CONSUMED_SIZE
);
153 condition
->parent
.validate
= lttng_condition_session_consumed_size_validate
;
154 condition
->parent
.serialize
= lttng_condition_session_consumed_size_serialize
;
155 condition
->parent
.equal
= lttng_condition_session_consumed_size_is_equal
;
156 condition
->parent
.destroy
= lttng_condition_session_consumed_size_destroy
;
157 return &condition
->parent
;
161 ssize_t
init_condition_from_buffer(struct lttng_condition
*condition
,
162 const struct lttng_buffer_view
*src_view
)
164 ssize_t ret
, condition_size
;
165 enum lttng_condition_status status
;
166 const struct lttng_condition_session_consumed_size_comm
*condition_comm
;
167 const char *session_name
;
168 struct lttng_buffer_view names_view
;
170 if (src_view
->size
< sizeof(*condition_comm
)) {
171 ERR("Failed to initialize from malformed condition buffer: buffer too short to contain header");
176 condition_comm
= (const struct lttng_condition_session_consumed_size_comm
*) src_view
->data
;
177 names_view
= lttng_buffer_view_from_view(src_view
,
178 sizeof(*condition_comm
), -1);
180 if (condition_comm
->session_name_len
> LTTNG_NAME_MAX
) {
181 ERR("Failed to initialize from malformed condition buffer: name exceeds LTTNG_MAX_NAME");
186 if (names_view
.size
< condition_comm
->session_name_len
) {
187 ERR("Failed to initialize from malformed condition buffer: buffer too short to contain element names");
192 status
= lttng_condition_session_consumed_size_set_threshold(condition
,
193 condition_comm
->consumed_threshold_bytes
);
194 if (status
!= LTTNG_CONDITION_STATUS_OK
) {
195 ERR("Failed to initialize session consumed condition threshold");
200 session_name
= names_view
.data
;
201 if (*(session_name
+ condition_comm
->session_name_len
- 1) != '\0') {
202 ERR("Malformed session name encountered in condition buffer");
207 status
= lttng_condition_session_consumed_size_set_session_name(condition
,
209 if (status
!= LTTNG_CONDITION_STATUS_OK
) {
210 ERR("Failed to set buffer consumed session name");
215 if (!lttng_condition_validate(condition
)) {
220 condition_size
= sizeof(*condition_comm
) +
221 (ssize_t
) condition_comm
->session_name_len
;
222 ret
= condition_size
;
228 ssize_t
lttng_condition_session_consumed_size_create_from_buffer(
229 const struct lttng_buffer_view
*view
,
230 struct lttng_condition
**_condition
)
233 struct lttng_condition
*condition
=
234 lttng_condition_session_consumed_size_create();
236 if (!_condition
|| !condition
) {
241 ret
= init_condition_from_buffer(condition
, view
);
246 *_condition
= condition
;
249 lttng_condition_destroy(condition
);
254 struct lttng_evaluation
*create_evaluation_from_buffer(
255 enum lttng_condition_type type
,
256 const struct lttng_buffer_view
*view
)
258 const struct lttng_evaluation_session_consumed_size_comm
*comm
=
259 (const struct lttng_evaluation_session_consumed_size_comm
*) view
->data
;
260 struct lttng_evaluation
*evaluation
= NULL
;
262 if (view
->size
< sizeof(*comm
)) {
266 evaluation
= lttng_evaluation_session_consumed_size_create(type
,
267 comm
->session_consumed
);
273 ssize_t
lttng_evaluation_session_consumed_size_create_from_buffer(
274 const struct lttng_buffer_view
*view
,
275 struct lttng_evaluation
**_evaluation
)
278 struct lttng_evaluation
*evaluation
= NULL
;
285 evaluation
= create_evaluation_from_buffer(
286 LTTNG_CONDITION_TYPE_SESSION_CONSUMED_SIZE
, view
);
292 *_evaluation
= evaluation
;
293 ret
= sizeof(struct lttng_evaluation_session_consumed_size_comm
);
296 lttng_evaluation_destroy(evaluation
);
300 enum lttng_condition_status
301 lttng_condition_session_consumed_size_get_threshold(
302 const struct lttng_condition
*condition
,
303 uint64_t *consumed_threshold_bytes
)
305 struct lttng_condition_session_consumed_size
*consumed
;
306 enum lttng_condition_status status
= LTTNG_CONDITION_STATUS_OK
;
308 if (!condition
|| !IS_CONSUMED_SIZE_CONDITION(condition
) || !consumed_threshold_bytes
) {
309 status
= LTTNG_CONDITION_STATUS_INVALID
;
313 consumed
= container_of(condition
, struct lttng_condition_session_consumed_size
,
315 if (!consumed
->consumed_threshold_bytes
.set
) {
316 status
= LTTNG_CONDITION_STATUS_UNSET
;
319 *consumed_threshold_bytes
= consumed
->consumed_threshold_bytes
.value
;
324 enum lttng_condition_status
325 lttng_condition_session_consumed_size_set_threshold(
326 struct lttng_condition
*condition
, uint64_t consumed_threshold_bytes
)
328 struct lttng_condition_session_consumed_size
*consumed
;
329 enum lttng_condition_status status
= LTTNG_CONDITION_STATUS_OK
;
331 if (!condition
|| !IS_CONSUMED_SIZE_CONDITION(condition
)) {
332 status
= LTTNG_CONDITION_STATUS_INVALID
;
336 consumed
= container_of(condition
, struct lttng_condition_session_consumed_size
,
338 consumed
->consumed_threshold_bytes
.set
= true;
339 consumed
->consumed_threshold_bytes
.value
= consumed_threshold_bytes
;
344 enum lttng_condition_status
345 lttng_condition_session_consumed_size_get_session_name(
346 const struct lttng_condition
*condition
,
347 const char **session_name
)
349 struct lttng_condition_session_consumed_size
*consumed
;
350 enum lttng_condition_status status
= LTTNG_CONDITION_STATUS_OK
;
352 if (!condition
|| !IS_CONSUMED_SIZE_CONDITION(condition
) || !session_name
) {
353 status
= LTTNG_CONDITION_STATUS_INVALID
;
357 consumed
= container_of(condition
, struct lttng_condition_session_consumed_size
,
359 if (!consumed
->session_name
) {
360 status
= LTTNG_CONDITION_STATUS_UNSET
;
363 *session_name
= consumed
->session_name
;
368 enum lttng_condition_status
369 lttng_condition_session_consumed_size_set_session_name(
370 struct lttng_condition
*condition
, const char *session_name
)
372 char *session_name_copy
;
373 struct lttng_condition_session_consumed_size
*consumed
;
374 enum lttng_condition_status status
= LTTNG_CONDITION_STATUS_OK
;
376 if (!condition
|| !IS_CONSUMED_SIZE_CONDITION(condition
) ||
377 !session_name
|| strlen(session_name
) == 0) {
378 status
= LTTNG_CONDITION_STATUS_INVALID
;
382 consumed
= container_of(condition
, struct lttng_condition_session_consumed_size
,
384 session_name_copy
= strdup(session_name
);
385 if (!session_name_copy
) {
386 status
= LTTNG_CONDITION_STATUS_ERROR
;
390 if (consumed
->session_name
) {
391 free(consumed
->session_name
);
393 consumed
->session_name
= session_name_copy
;
399 ssize_t
lttng_evaluation_session_consumed_size_serialize(
400 struct lttng_evaluation
*evaluation
, char *buf
)
403 struct lttng_evaluation_session_consumed_size
*consumed
;
405 consumed
= container_of(evaluation
, struct lttng_evaluation_session_consumed_size
,
408 struct lttng_evaluation_session_consumed_size_comm comm
= {
409 .session_consumed
= consumed
->session_consumed
,
412 memcpy(buf
, &comm
, sizeof(comm
));
415 ret
= sizeof(struct lttng_evaluation_session_consumed_size_comm
);
420 void lttng_evaluation_session_consumed_size_destroy(
421 struct lttng_evaluation
*evaluation
)
423 struct lttng_evaluation_session_consumed_size
*consumed
;
425 consumed
= container_of(evaluation
, struct lttng_evaluation_session_consumed_size
,
431 struct lttng_evaluation
*lttng_evaluation_session_consumed_size_create(
432 enum lttng_condition_type type
, uint64_t consumed
)
434 struct lttng_evaluation_session_consumed_size
*consumed_eval
;
436 consumed_eval
= zmalloc(sizeof(struct lttng_evaluation_session_consumed_size
));
437 if (!consumed_eval
) {
441 consumed_eval
->parent
.type
= type
;
442 consumed_eval
->session_consumed
= consumed
;
443 consumed_eval
->parent
.serialize
= lttng_evaluation_session_consumed_size_serialize
;
444 consumed_eval
->parent
.destroy
= lttng_evaluation_session_consumed_size_destroy
;
446 return &consumed_eval
->parent
;
449 enum lttng_evaluation_status
450 lttng_evaluation_session_consumed_size_get_consumed_size(
451 const struct lttng_evaluation
*evaluation
,
452 uint64_t *session_consumed
)
454 struct lttng_evaluation_session_consumed_size
*consumed
;
455 enum lttng_evaluation_status status
= LTTNG_EVALUATION_STATUS_OK
;
457 if (!evaluation
|| !IS_CONSUMED_SIZE_EVALUATION(evaluation
) ||
459 status
= LTTNG_EVALUATION_STATUS_INVALID
;
463 consumed
= container_of(evaluation
, struct lttng_evaluation_session_consumed_size
,
465 *session_consumed
= consumed
->session_consumed
;