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/evaluation-internal.h>
10 #include <lttng/condition/buffer-usage-internal.h>
11 #include <lttng/condition/session-consumed-size-internal.h>
12 #include <lttng/condition/session-rotation-internal.h>
13 #include <lttng/condition/event-rule-internal.h>
14 #include <common/macros.h>
15 #include <common/error.h>
20 void lttng_evaluation_init(struct lttng_evaluation
*evaluation
,
21 enum lttng_condition_type type
)
23 evaluation
->type
= type
;
27 int lttng_evaluation_serialize(const struct lttng_evaluation
*evaluation
,
28 struct lttng_payload
*payload
)
31 struct lttng_evaluation_comm evaluation_comm
= {
32 .type
= (int8_t) evaluation
->type
35 ret
= lttng_dynamic_buffer_append(&payload
->buffer
, &evaluation_comm
,
36 sizeof(evaluation_comm
));
41 if (evaluation
->serialize
) {
42 ret
= evaluation
->serialize(evaluation
, payload
);
52 ssize_t
lttng_evaluation_create_from_payload(
53 const struct lttng_condition
*condition
,
54 struct lttng_payload_view
*src_view
,
55 struct lttng_evaluation
**evaluation
)
57 ssize_t ret
, evaluation_size
= 0;
58 const struct lttng_evaluation_comm
*evaluation_comm
;
59 struct lttng_payload_view evaluation_view
= src_view
?
60 lttng_payload_view_from_view(src_view
,
61 sizeof(*evaluation_comm
), -1) :
62 (typeof(evaluation_view
)) {};
64 if (!src_view
|| !evaluation
) {
69 evaluation_comm
= (typeof(evaluation_comm
)) src_view
->buffer
.data
;
70 evaluation_size
+= sizeof(*evaluation_comm
);
72 switch ((enum lttng_condition_type
) evaluation_comm
->type
) {
73 case LTTNG_CONDITION_TYPE_BUFFER_USAGE_LOW
:
74 ret
= lttng_evaluation_buffer_usage_low_create_from_payload(
75 &evaluation_view
, evaluation
);
79 evaluation_size
+= ret
;
81 case LTTNG_CONDITION_TYPE_BUFFER_USAGE_HIGH
:
82 ret
= lttng_evaluation_buffer_usage_high_create_from_payload(
83 &evaluation_view
, evaluation
);
87 evaluation_size
+= ret
;
89 case LTTNG_CONDITION_TYPE_SESSION_CONSUMED_SIZE
:
90 ret
= lttng_evaluation_session_consumed_size_create_from_payload(
91 &evaluation_view
, evaluation
);
95 evaluation_size
+= ret
;
97 case LTTNG_CONDITION_TYPE_SESSION_ROTATION_ONGOING
:
98 ret
= lttng_evaluation_session_rotation_ongoing_create_from_payload(
99 &evaluation_view
, evaluation
);
103 evaluation_size
+= ret
;
105 case LTTNG_CONDITION_TYPE_SESSION_ROTATION_COMPLETED
:
106 ret
= lttng_evaluation_session_rotation_completed_create_from_payload(
107 &evaluation_view
, evaluation
);
111 evaluation_size
+= ret
;
113 case LTTNG_CONDITION_TYPE_EVENT_RULE_HIT
:
115 assert(condition
->type
== LTTNG_CONDITION_TYPE_EVENT_RULE_HIT
);
116 ret
= lttng_evaluation_event_rule_create_from_payload(
117 container_of(condition
,
118 struct lttng_condition_event_rule
,
120 &evaluation_view
, evaluation
);
124 evaluation_size
+= ret
;
127 ERR("Attempted to create evaluation of unknown type (%i)",
128 (int) evaluation_comm
->type
);
133 ret
= evaluation_size
;
138 enum lttng_condition_type
lttng_evaluation_get_type(
139 const struct lttng_evaluation
*evaluation
)
141 return evaluation
? evaluation
->type
: LTTNG_CONDITION_TYPE_UNKNOWN
;
144 void lttng_evaluation_destroy(struct lttng_evaluation
*evaluation
)
150 assert(evaluation
->destroy
);
151 evaluation
->destroy(evaluation
);