Implement lttng_condition_event_rule_get_capture_bytecode_at_index
[lttng-tools.git] / include / lttng / condition / event-rule-internal.h
1 /*
2 * Copyright (C) 2019 Jonathan Rajotte <jonathan.rajotte-julien@efficios.com>
3 *
4 * SPDX-License-Identifier: LGPL-2.1-only
5 *
6 */
7
8 #ifndef LTTNG_CONDITION_EVENT_RULE_INTERNAL_H
9 #define LTTNG_CONDITION_EVENT_RULE_INTERNAL_H
10
11 #include <lttng/condition/condition-internal.h>
12 #include <common/buffer-view.h>
13 #include <common/macros.h>
14 #include <lttng/condition/evaluation-internal.h>
15 #include <common/dynamic-array.h>
16
17 struct lttng_capture_descriptor {
18 struct lttng_event_expr *event_expression;
19 struct lttng_bytecode *bytecode;
20 };
21
22 struct lttng_condition_event_rule {
23 struct lttng_condition parent;
24 struct lttng_event_rule *rule;
25
26 /* Array of `struct lttng_capture_descriptor *`. */
27 struct lttng_dynamic_pointer_array capture_descriptors;
28 };
29
30 struct lttng_evaluation_event_rule {
31 struct lttng_evaluation parent;
32 char *name;
33 };
34
35 struct lttng_evaluation_event_rule_comm {
36 /* Includes the null terminator. */
37 uint32_t trigger_name_length;
38 /* Trigger name. */
39 char payload[];
40 } LTTNG_PACKED;
41
42 LTTNG_HIDDEN
43 ssize_t lttng_condition_event_rule_create_from_payload(
44 struct lttng_payload_view *view,
45 struct lttng_condition **condition);
46
47 LTTNG_HIDDEN
48 enum lttng_condition_status
49 lttng_condition_event_rule_borrow_rule_mutable(
50 const struct lttng_condition *condition,
51 struct lttng_event_rule **rule);
52
53 LTTNG_HIDDEN
54 struct lttng_evaluation *lttng_evaluation_event_rule_create(
55 const char* trigger_name);
56
57 LTTNG_HIDDEN
58 ssize_t lttng_evaluation_event_rule_create_from_payload(
59 struct lttng_payload_view *view,
60 struct lttng_evaluation **_evaluation);
61
62 LTTNG_HIDDEN
63 enum lttng_error_code
64 lttng_condition_event_rule_generate_capture_descriptor_bytecode(
65 struct lttng_condition *condition);
66
67 LTTNG_HIDDEN
68 const struct lttng_bytecode *
69 lttng_condition_event_rule_get_capture_bytecode_at_index(
70 const struct lttng_condition *condition, unsigned int index);
71
72 #endif /* LTTNG_CONDITION_EVENT_RULE_INTERNAL_H */
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