2 * Copyright (C) 2017 Jérémie Galarneau <jeremie.galarneau@efficios.com>
4 * SPDX-License-Identifier: LGPL-2.1-only
8 #include <lttng/condition/condition-internal.h>
9 #include <lttng/condition/session-consumed-size-internal.h>
10 #include <lttng/constant.h>
11 #include <common/macros.h>
12 #include <common/error.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
= container_of(condition
,
32 struct lttng_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
= container_of(condition
, struct lttng_condition_session_consumed_size
,
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_dynamic_buffer
*buf
,
72 size_t session_name_len
;
73 struct lttng_condition_session_consumed_size
*consumed
;
74 struct lttng_condition_session_consumed_size_comm consumed_comm
;
76 if (!condition
|| !IS_CONSUMED_SIZE_CONDITION(condition
)) {
81 DBG("Serializing session consumed size condition");
82 consumed
= container_of(condition
,
83 struct lttng_condition_session_consumed_size
,
86 session_name_len
= strlen(consumed
->session_name
) + 1;
87 if (session_name_len
> LTTNG_NAME_MAX
) {
92 consumed_comm
.consumed_threshold_bytes
=
93 consumed
->consumed_threshold_bytes
.value
;
94 consumed_comm
.session_name_len
= (uint32_t) session_name_len
;
96 ret
= lttng_dynamic_buffer_append(buf
, &consumed_comm
,
97 sizeof(consumed_comm
));
101 ret
= lttng_dynamic_buffer_append(buf
, consumed
->session_name
,
116 bool lttng_condition_session_consumed_size_is_equal(const struct lttng_condition
*_a
,
117 const struct lttng_condition
*_b
)
119 bool is_equal
= false;
120 struct lttng_condition_session_consumed_size
*a
, *b
;
122 a
= container_of(_a
, struct lttng_condition_session_consumed_size
, parent
);
123 b
= container_of(_b
, struct lttng_condition_session_consumed_size
, parent
);
125 if (a
->consumed_threshold_bytes
.set
&& b
->consumed_threshold_bytes
.set
) {
126 uint64_t a_value
, b_value
;
128 a_value
= a
->consumed_threshold_bytes
.value
;
129 b_value
= b
->consumed_threshold_bytes
.value
;
130 if (a_value
!= b_value
) {
135 assert(a
->session_name
);
136 assert(b
->session_name
);
137 if (strcmp(a
->session_name
, b
->session_name
)) {
146 struct lttng_condition
*lttng_condition_session_consumed_size_create(void)
148 struct lttng_condition_session_consumed_size
*condition
;
150 condition
= zmalloc(sizeof(struct lttng_condition_session_consumed_size
));
155 lttng_condition_init(&condition
->parent
, LTTNG_CONDITION_TYPE_SESSION_CONSUMED_SIZE
);
156 condition
->parent
.validate
= lttng_condition_session_consumed_size_validate
;
157 condition
->parent
.serialize
= lttng_condition_session_consumed_size_serialize
;
158 condition
->parent
.equal
= lttng_condition_session_consumed_size_is_equal
;
159 condition
->parent
.destroy
= lttng_condition_session_consumed_size_destroy
;
160 return &condition
->parent
;
164 ssize_t
init_condition_from_buffer(struct lttng_condition
*condition
,
165 const struct lttng_buffer_view
*src_view
)
167 ssize_t ret
, condition_size
;
168 enum lttng_condition_status status
;
169 const struct lttng_condition_session_consumed_size_comm
*condition_comm
;
170 const char *session_name
;
171 struct lttng_buffer_view names_view
;
173 if (src_view
->size
< sizeof(*condition_comm
)) {
174 ERR("Failed to initialize from malformed condition buffer: buffer too short to contain header");
179 condition_comm
= (const struct lttng_condition_session_consumed_size_comm
*) src_view
->data
;
180 names_view
= lttng_buffer_view_from_view(src_view
,
181 sizeof(*condition_comm
), -1);
183 if (condition_comm
->session_name_len
> LTTNG_NAME_MAX
) {
184 ERR("Failed to initialize from malformed condition buffer: name exceeds LTTNG_MAX_NAME");
189 if (names_view
.size
< condition_comm
->session_name_len
) {
190 ERR("Failed to initialize from malformed condition buffer: buffer too short to contain element names");
195 status
= lttng_condition_session_consumed_size_set_threshold(condition
,
196 condition_comm
->consumed_threshold_bytes
);
197 if (status
!= LTTNG_CONDITION_STATUS_OK
) {
198 ERR("Failed to initialize session consumed size condition threshold");
203 session_name
= names_view
.data
;
204 if (*(session_name
+ condition_comm
->session_name_len
- 1) != '\0') {
205 ERR("Malformed session name encountered in condition buffer");
210 status
= lttng_condition_session_consumed_size_set_session_name(condition
,
212 if (status
!= LTTNG_CONDITION_STATUS_OK
) {
213 ERR("Failed to set session consumed size condition's session name");
218 if (!lttng_condition_validate(condition
)) {
223 condition_size
= sizeof(*condition_comm
) +
224 (ssize_t
) condition_comm
->session_name_len
;
225 ret
= condition_size
;
231 ssize_t
lttng_condition_session_consumed_size_create_from_buffer(
232 const struct lttng_buffer_view
*view
,
233 struct lttng_condition
**_condition
)
236 struct lttng_condition
*condition
=
237 lttng_condition_session_consumed_size_create();
239 if (!_condition
|| !condition
) {
244 ret
= init_condition_from_buffer(condition
, view
);
249 *_condition
= condition
;
252 lttng_condition_destroy(condition
);
257 struct lttng_evaluation
*create_evaluation_from_buffer(
258 const struct lttng_buffer_view
*view
)
260 const struct lttng_evaluation_session_consumed_size_comm
*comm
=
261 (const struct lttng_evaluation_session_consumed_size_comm
*) view
->data
;
262 struct lttng_evaluation
*evaluation
= NULL
;
264 if (view
->size
< sizeof(*comm
)) {
268 evaluation
= lttng_evaluation_session_consumed_size_create(
269 comm
->session_consumed
);
275 ssize_t
lttng_evaluation_session_consumed_size_create_from_buffer(
276 const struct lttng_buffer_view
*view
,
277 struct lttng_evaluation
**_evaluation
)
280 struct lttng_evaluation
*evaluation
= NULL
;
287 evaluation
= create_evaluation_from_buffer(view
);
293 *_evaluation
= evaluation
;
294 ret
= sizeof(struct lttng_evaluation_session_consumed_size_comm
);
297 lttng_evaluation_destroy(evaluation
);
301 enum lttng_condition_status
302 lttng_condition_session_consumed_size_get_threshold(
303 const struct lttng_condition
*condition
,
304 uint64_t *consumed_threshold_bytes
)
306 struct lttng_condition_session_consumed_size
*consumed
;
307 enum lttng_condition_status status
= LTTNG_CONDITION_STATUS_OK
;
309 if (!condition
|| !IS_CONSUMED_SIZE_CONDITION(condition
) || !consumed_threshold_bytes
) {
310 status
= LTTNG_CONDITION_STATUS_INVALID
;
314 consumed
= container_of(condition
, struct lttng_condition_session_consumed_size
,
316 if (!consumed
->consumed_threshold_bytes
.set
) {
317 status
= LTTNG_CONDITION_STATUS_UNSET
;
320 *consumed_threshold_bytes
= consumed
->consumed_threshold_bytes
.value
;
325 enum lttng_condition_status
326 lttng_condition_session_consumed_size_set_threshold(
327 struct lttng_condition
*condition
, uint64_t consumed_threshold_bytes
)
329 struct lttng_condition_session_consumed_size
*consumed
;
330 enum lttng_condition_status status
= LTTNG_CONDITION_STATUS_OK
;
332 if (!condition
|| !IS_CONSUMED_SIZE_CONDITION(condition
)) {
333 status
= LTTNG_CONDITION_STATUS_INVALID
;
337 consumed
= container_of(condition
, struct lttng_condition_session_consumed_size
,
339 consumed
->consumed_threshold_bytes
.set
= true;
340 consumed
->consumed_threshold_bytes
.value
= consumed_threshold_bytes
;
345 enum lttng_condition_status
346 lttng_condition_session_consumed_size_get_session_name(
347 const struct lttng_condition
*condition
,
348 const char **session_name
)
350 struct lttng_condition_session_consumed_size
*consumed
;
351 enum lttng_condition_status status
= LTTNG_CONDITION_STATUS_OK
;
353 if (!condition
|| !IS_CONSUMED_SIZE_CONDITION(condition
) || !session_name
) {
354 status
= LTTNG_CONDITION_STATUS_INVALID
;
358 consumed
= container_of(condition
, struct lttng_condition_session_consumed_size
,
360 if (!consumed
->session_name
) {
361 status
= LTTNG_CONDITION_STATUS_UNSET
;
364 *session_name
= consumed
->session_name
;
369 enum lttng_condition_status
370 lttng_condition_session_consumed_size_set_session_name(
371 struct lttng_condition
*condition
, const char *session_name
)
373 char *session_name_copy
;
374 struct lttng_condition_session_consumed_size
*consumed
;
375 enum lttng_condition_status status
= LTTNG_CONDITION_STATUS_OK
;
377 if (!condition
|| !IS_CONSUMED_SIZE_CONDITION(condition
) ||
378 !session_name
|| strlen(session_name
) == 0) {
379 status
= LTTNG_CONDITION_STATUS_INVALID
;
383 consumed
= container_of(condition
, struct lttng_condition_session_consumed_size
,
385 session_name_copy
= strdup(session_name
);
386 if (!session_name_copy
) {
387 status
= LTTNG_CONDITION_STATUS_ERROR
;
391 if (consumed
->session_name
) {
392 free(consumed
->session_name
);
394 consumed
->session_name
= session_name_copy
;
400 int lttng_evaluation_session_consumed_size_serialize(
401 const struct lttng_evaluation
*evaluation
,
402 struct lttng_dynamic_buffer
*buf
)
404 struct lttng_evaluation_session_consumed_size
*consumed
;
405 struct lttng_evaluation_session_consumed_size_comm comm
;
407 consumed
= container_of(evaluation
, struct lttng_evaluation_session_consumed_size
,
409 comm
.session_consumed
= consumed
->session_consumed
;
410 return lttng_dynamic_buffer_append(buf
, &comm
, sizeof(comm
));
414 void lttng_evaluation_session_consumed_size_destroy(
415 struct lttng_evaluation
*evaluation
)
417 struct lttng_evaluation_session_consumed_size
*consumed
;
419 consumed
= container_of(evaluation
, struct lttng_evaluation_session_consumed_size
,
425 struct lttng_evaluation
*lttng_evaluation_session_consumed_size_create(
428 struct lttng_evaluation_session_consumed_size
*consumed_eval
;
430 consumed_eval
= zmalloc(sizeof(struct lttng_evaluation_session_consumed_size
));
431 if (!consumed_eval
) {
435 consumed_eval
->parent
.type
= LTTNG_CONDITION_TYPE_SESSION_CONSUMED_SIZE
;
436 consumed_eval
->session_consumed
= consumed
;
437 consumed_eval
->parent
.serialize
= lttng_evaluation_session_consumed_size_serialize
;
438 consumed_eval
->parent
.destroy
= lttng_evaluation_session_consumed_size_destroy
;
440 return &consumed_eval
->parent
;
443 enum lttng_evaluation_status
444 lttng_evaluation_session_consumed_size_get_consumed_size(
445 const struct lttng_evaluation
*evaluation
,
446 uint64_t *session_consumed
)
448 struct lttng_evaluation_session_consumed_size
*consumed
;
449 enum lttng_evaluation_status status
= LTTNG_EVALUATION_STATUS_OK
;
451 if (!evaluation
|| !IS_CONSUMED_SIZE_EVALUATION(evaluation
) ||
453 status
= LTTNG_EVALUATION_STATUS_INVALID
;
457 consumed
= container_of(evaluation
, struct lttng_evaluation_session_consumed_size
,
459 *session_consumed
= consumed
->session_consumed
;