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
)
71 size_t session_name_len
;
72 struct lttng_condition_session_consumed_size
*consumed
;
73 struct lttng_condition_session_consumed_size_comm consumed_comm
;
75 if (!condition
|| !IS_CONSUMED_SIZE_CONDITION(condition
)) {
80 DBG("Serializing session consumed size condition");
81 consumed
= container_of(condition
,
82 struct lttng_condition_session_consumed_size
,
85 session_name_len
= strlen(consumed
->session_name
) + 1;
86 if (session_name_len
> LTTNG_NAME_MAX
) {
91 consumed_comm
.consumed_threshold_bytes
=
92 consumed
->consumed_threshold_bytes
.value
;
93 consumed_comm
.session_name_len
= (uint32_t) session_name_len
;
95 ret
= lttng_dynamic_buffer_append(buf
, &consumed_comm
,
96 sizeof(consumed_comm
));
100 ret
= lttng_dynamic_buffer_append(buf
, consumed
->session_name
,
110 bool lttng_condition_session_consumed_size_is_equal(const struct lttng_condition
*_a
,
111 const struct lttng_condition
*_b
)
113 bool is_equal
= false;
114 struct lttng_condition_session_consumed_size
*a
, *b
;
116 a
= container_of(_a
, struct lttng_condition_session_consumed_size
, parent
);
117 b
= container_of(_b
, struct lttng_condition_session_consumed_size
, parent
);
119 if (a
->consumed_threshold_bytes
.set
&& b
->consumed_threshold_bytes
.set
) {
120 uint64_t a_value
, b_value
;
122 a_value
= a
->consumed_threshold_bytes
.value
;
123 b_value
= b
->consumed_threshold_bytes
.value
;
124 if (a_value
!= b_value
) {
129 assert(a
->session_name
);
130 assert(b
->session_name
);
131 if (strcmp(a
->session_name
, b
->session_name
)) {
140 struct lttng_condition
*lttng_condition_session_consumed_size_create(void)
142 struct lttng_condition_session_consumed_size
*condition
;
144 condition
= zmalloc(sizeof(struct lttng_condition_session_consumed_size
));
149 lttng_condition_init(&condition
->parent
, LTTNG_CONDITION_TYPE_SESSION_CONSUMED_SIZE
);
150 condition
->parent
.validate
= lttng_condition_session_consumed_size_validate
;
151 condition
->parent
.serialize
= lttng_condition_session_consumed_size_serialize
;
152 condition
->parent
.equal
= lttng_condition_session_consumed_size_is_equal
;
153 condition
->parent
.destroy
= lttng_condition_session_consumed_size_destroy
;
154 return &condition
->parent
;
158 ssize_t
init_condition_from_buffer(struct lttng_condition
*condition
,
159 const struct lttng_buffer_view
*src_view
)
161 ssize_t ret
, condition_size
;
162 enum lttng_condition_status status
;
163 const struct lttng_condition_session_consumed_size_comm
*condition_comm
;
164 const char *session_name
;
165 struct lttng_buffer_view names_view
;
167 if (src_view
->size
< sizeof(*condition_comm
)) {
168 ERR("Failed to initialize from malformed condition buffer: buffer too short to contain header");
173 condition_comm
= (const struct lttng_condition_session_consumed_size_comm
*) src_view
->data
;
174 names_view
= lttng_buffer_view_from_view(src_view
,
175 sizeof(*condition_comm
), -1);
177 if (condition_comm
->session_name_len
> LTTNG_NAME_MAX
) {
178 ERR("Failed to initialize from malformed condition buffer: name exceeds LTTNG_MAX_NAME");
183 if (names_view
.size
< condition_comm
->session_name_len
) {
184 ERR("Failed to initialize from malformed condition buffer: buffer too short to contain element names");
189 status
= lttng_condition_session_consumed_size_set_threshold(condition
,
190 condition_comm
->consumed_threshold_bytes
);
191 if (status
!= LTTNG_CONDITION_STATUS_OK
) {
192 ERR("Failed to initialize session consumed size condition threshold");
197 session_name
= names_view
.data
;
198 if (*(session_name
+ condition_comm
->session_name_len
- 1) != '\0') {
199 ERR("Malformed session name encountered in condition buffer");
204 status
= lttng_condition_session_consumed_size_set_session_name(condition
,
206 if (status
!= LTTNG_CONDITION_STATUS_OK
) {
207 ERR("Failed to set session consumed size condition's session name");
212 if (!lttng_condition_validate(condition
)) {
217 condition_size
= sizeof(*condition_comm
) +
218 (ssize_t
) condition_comm
->session_name_len
;
219 ret
= condition_size
;
225 ssize_t
lttng_condition_session_consumed_size_create_from_buffer(
226 const struct lttng_buffer_view
*view
,
227 struct lttng_condition
**_condition
)
230 struct lttng_condition
*condition
=
231 lttng_condition_session_consumed_size_create();
233 if (!_condition
|| !condition
) {
238 ret
= init_condition_from_buffer(condition
, view
);
243 *_condition
= condition
;
246 lttng_condition_destroy(condition
);
251 struct lttng_evaluation
*create_evaluation_from_buffer(
252 const struct lttng_buffer_view
*view
)
254 const struct lttng_evaluation_session_consumed_size_comm
*comm
=
255 (const struct lttng_evaluation_session_consumed_size_comm
*) view
->data
;
256 struct lttng_evaluation
*evaluation
= NULL
;
258 if (view
->size
< sizeof(*comm
)) {
262 evaluation
= lttng_evaluation_session_consumed_size_create(
263 comm
->session_consumed
);
269 ssize_t
lttng_evaluation_session_consumed_size_create_from_buffer(
270 const struct lttng_buffer_view
*view
,
271 struct lttng_evaluation
**_evaluation
)
274 struct lttng_evaluation
*evaluation
= NULL
;
281 evaluation
= create_evaluation_from_buffer(view
);
287 *_evaluation
= evaluation
;
288 ret
= sizeof(struct lttng_evaluation_session_consumed_size_comm
);
291 lttng_evaluation_destroy(evaluation
);
295 enum lttng_condition_status
296 lttng_condition_session_consumed_size_get_threshold(
297 const struct lttng_condition
*condition
,
298 uint64_t *consumed_threshold_bytes
)
300 struct lttng_condition_session_consumed_size
*consumed
;
301 enum lttng_condition_status status
= LTTNG_CONDITION_STATUS_OK
;
303 if (!condition
|| !IS_CONSUMED_SIZE_CONDITION(condition
) || !consumed_threshold_bytes
) {
304 status
= LTTNG_CONDITION_STATUS_INVALID
;
308 consumed
= container_of(condition
, struct lttng_condition_session_consumed_size
,
310 if (!consumed
->consumed_threshold_bytes
.set
) {
311 status
= LTTNG_CONDITION_STATUS_UNSET
;
314 *consumed_threshold_bytes
= consumed
->consumed_threshold_bytes
.value
;
319 enum lttng_condition_status
320 lttng_condition_session_consumed_size_set_threshold(
321 struct lttng_condition
*condition
, uint64_t consumed_threshold_bytes
)
323 struct lttng_condition_session_consumed_size
*consumed
;
324 enum lttng_condition_status status
= LTTNG_CONDITION_STATUS_OK
;
326 if (!condition
|| !IS_CONSUMED_SIZE_CONDITION(condition
)) {
327 status
= LTTNG_CONDITION_STATUS_INVALID
;
331 consumed
= container_of(condition
, struct lttng_condition_session_consumed_size
,
333 consumed
->consumed_threshold_bytes
.set
= true;
334 consumed
->consumed_threshold_bytes
.value
= consumed_threshold_bytes
;
339 enum lttng_condition_status
340 lttng_condition_session_consumed_size_get_session_name(
341 const struct lttng_condition
*condition
,
342 const char **session_name
)
344 struct lttng_condition_session_consumed_size
*consumed
;
345 enum lttng_condition_status status
= LTTNG_CONDITION_STATUS_OK
;
347 if (!condition
|| !IS_CONSUMED_SIZE_CONDITION(condition
) || !session_name
) {
348 status
= LTTNG_CONDITION_STATUS_INVALID
;
352 consumed
= container_of(condition
, struct lttng_condition_session_consumed_size
,
354 if (!consumed
->session_name
) {
355 status
= LTTNG_CONDITION_STATUS_UNSET
;
358 *session_name
= consumed
->session_name
;
363 enum lttng_condition_status
364 lttng_condition_session_consumed_size_set_session_name(
365 struct lttng_condition
*condition
, const char *session_name
)
367 char *session_name_copy
;
368 struct lttng_condition_session_consumed_size
*consumed
;
369 enum lttng_condition_status status
= LTTNG_CONDITION_STATUS_OK
;
371 if (!condition
|| !IS_CONSUMED_SIZE_CONDITION(condition
) ||
372 !session_name
|| strlen(session_name
) == 0) {
373 status
= LTTNG_CONDITION_STATUS_INVALID
;
377 consumed
= container_of(condition
, struct lttng_condition_session_consumed_size
,
379 session_name_copy
= strdup(session_name
);
380 if (!session_name_copy
) {
381 status
= LTTNG_CONDITION_STATUS_ERROR
;
385 if (consumed
->session_name
) {
386 free(consumed
->session_name
);
388 consumed
->session_name
= session_name_copy
;
394 int lttng_evaluation_session_consumed_size_serialize(
395 const struct lttng_evaluation
*evaluation
,
396 struct lttng_dynamic_buffer
*buf
)
398 struct lttng_evaluation_session_consumed_size
*consumed
;
399 struct lttng_evaluation_session_consumed_size_comm comm
;
401 consumed
= container_of(evaluation
, struct lttng_evaluation_session_consumed_size
,
403 comm
.session_consumed
= consumed
->session_consumed
;
404 return lttng_dynamic_buffer_append(buf
, &comm
, sizeof(comm
));
408 void lttng_evaluation_session_consumed_size_destroy(
409 struct lttng_evaluation
*evaluation
)
411 struct lttng_evaluation_session_consumed_size
*consumed
;
413 consumed
= container_of(evaluation
, struct lttng_evaluation_session_consumed_size
,
419 struct lttng_evaluation
*lttng_evaluation_session_consumed_size_create(
422 struct lttng_evaluation_session_consumed_size
*consumed_eval
;
424 consumed_eval
= zmalloc(sizeof(struct lttng_evaluation_session_consumed_size
));
425 if (!consumed_eval
) {
429 consumed_eval
->parent
.type
= LTTNG_CONDITION_TYPE_SESSION_CONSUMED_SIZE
;
430 consumed_eval
->session_consumed
= consumed
;
431 consumed_eval
->parent
.serialize
= lttng_evaluation_session_consumed_size_serialize
;
432 consumed_eval
->parent
.destroy
= lttng_evaluation_session_consumed_size_destroy
;
434 return &consumed_eval
->parent
;
437 enum lttng_evaluation_status
438 lttng_evaluation_session_consumed_size_get_consumed_size(
439 const struct lttng_evaluation
*evaluation
,
440 uint64_t *session_consumed
)
442 struct lttng_evaluation_session_consumed_size
*consumed
;
443 enum lttng_evaluation_status status
= LTTNG_EVALUATION_STATUS_OK
;
445 if (!evaluation
|| !IS_CONSUMED_SIZE_EVALUATION(evaluation
) ||
447 status
= LTTNG_EVALUATION_STATUS_INVALID
;
451 consumed
= container_of(evaluation
, struct lttng_evaluation_session_consumed_size
,
453 *session_consumed
= consumed
->session_consumed
;