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7a3dcaf6 JR |
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_EVENT_RULE_INTERNAL_H | |
9 | #define LTTNG_EVENT_RULE_INTERNAL_H | |
10 | ||
11 | #include <common/macros.h> | |
58daac01 | 12 | #include <common/credentials.h> |
993578ff | 13 | #include <common/sessiond-comm/sessiond-comm.h> |
7a3dcaf6 | 14 | #include <lttng/domain.h> |
44760c20 | 15 | #include <lttng/event.h> |
7a3dcaf6 JR |
16 | #include <lttng/event-rule/event-rule.h> |
17 | #include <lttng/lttng-error.h> | |
18 | #include <stdbool.h> | |
19 | #include <stdint.h> | |
20 | #include <sys/types.h> | |
21 | #include <urcu/ref.h> | |
22 | ||
48a40005 SM |
23 | #if defined(__cplusplus) |
24 | extern "C" { | |
25 | #endif | |
26 | ||
7a3dcaf6 JR |
27 | struct lttng_payload; |
28 | struct lttng_payload_view; | |
6a751b95 | 29 | struct mi_writer; |
7a3dcaf6 | 30 | |
993578ff JR |
31 | enum lttng_event_rule_generate_exclusions_status { |
32 | LTTNG_EVENT_RULE_GENERATE_EXCLUSIONS_STATUS_OK, | |
33 | LTTNG_EVENT_RULE_GENERATE_EXCLUSIONS_STATUS_NONE, | |
34 | LTTNG_EVENT_RULE_GENERATE_EXCLUSIONS_STATUS_ERROR, | |
35 | LTTNG_EVENT_RULE_GENERATE_EXCLUSIONS_STATUS_OUT_OF_MEMORY, | |
36 | }; | |
37 | ||
7a3dcaf6 JR |
38 | typedef void (*event_rule_destroy_cb)(struct lttng_event_rule *event_rule); |
39 | typedef bool (*event_rule_validate_cb)( | |
40 | const struct lttng_event_rule *event_rule); | |
41 | typedef int (*event_rule_serialize_cb)( | |
42 | const struct lttng_event_rule *event_rule, | |
43 | struct lttng_payload *payload); | |
44 | typedef bool (*event_rule_equal_cb)(const struct lttng_event_rule *a, | |
45 | const struct lttng_event_rule *b); | |
46 | typedef ssize_t (*event_rule_create_from_payload_cb)( | |
47 | struct lttng_payload_view *view, | |
48 | struct lttng_event_rule **event_rule); | |
49 | typedef enum lttng_error_code (*event_rule_generate_filter_bytecode_cb)( | |
58daac01 JR |
50 | struct lttng_event_rule *event_rule, |
51 | const struct lttng_credentials *creds); | |
7a3dcaf6 JR |
52 | typedef const char *(*event_rule_get_filter_cb)( |
53 | const struct lttng_event_rule *event_rule); | |
2b00d462 | 54 | typedef const struct lttng_bytecode *( |
7a3dcaf6 JR |
55 | *event_rule_get_filter_bytecode_cb)( |
56 | const struct lttng_event_rule *event_rule); | |
993578ff JR |
57 | typedef enum lttng_event_rule_generate_exclusions_status ( |
58 | *event_rule_generate_exclusions_cb)( | |
59 | const struct lttng_event_rule *event_rule, | |
60 | struct lttng_event_exclusion **exclusions); | |
959e3c66 JR |
61 | typedef unsigned long (*event_rule_hash_cb)( |
62 | const struct lttng_event_rule *event_rule); | |
44760c20 JR |
63 | typedef struct lttng_event *(*event_rule_generate_lttng_event_cb)( |
64 | const struct lttng_event_rule *event_rule); | |
6a751b95 JR |
65 | typedef enum lttng_error_code (*event_rule_mi_serialize_cb)( |
66 | const struct lttng_event_rule *event_rule, | |
67 | struct mi_writer *writer); | |
7a3dcaf6 JR |
68 | |
69 | struct lttng_event_rule { | |
70 | struct urcu_ref ref; | |
71 | enum lttng_event_rule_type type; | |
72 | event_rule_validate_cb validate; | |
73 | event_rule_serialize_cb serialize; | |
74 | event_rule_equal_cb equal; | |
75 | event_rule_destroy_cb destroy; | |
76 | event_rule_generate_filter_bytecode_cb generate_filter_bytecode; | |
77 | event_rule_get_filter_cb get_filter; | |
78 | event_rule_get_filter_bytecode_cb get_filter_bytecode; | |
79 | event_rule_generate_exclusions_cb generate_exclusions; | |
959e3c66 | 80 | event_rule_hash_cb hash; |
44760c20 | 81 | event_rule_generate_lttng_event_cb generate_lttng_event; |
6a751b95 | 82 | event_rule_mi_serialize_cb mi_serialize; |
7a3dcaf6 JR |
83 | }; |
84 | ||
85 | struct lttng_event_rule_comm { | |
86 | /* enum lttng_event_rule_type */ | |
87 | int8_t event_rule_type; | |
88 | char payload[]; | |
89 | }; | |
90 | ||
7a3dcaf6 JR |
91 | void lttng_event_rule_init(struct lttng_event_rule *event_rule, |
92 | enum lttng_event_rule_type type); | |
93 | ||
7a3dcaf6 JR |
94 | bool lttng_event_rule_validate(const struct lttng_event_rule *event_rule); |
95 | ||
7a3dcaf6 JR |
96 | ssize_t lttng_event_rule_create_from_payload( |
97 | struct lttng_payload_view *payload, | |
98 | struct lttng_event_rule **event_rule); | |
99 | ||
7a3dcaf6 JR |
100 | int lttng_event_rule_serialize(const struct lttng_event_rule *event_rule, |
101 | struct lttng_payload *payload); | |
102 | ||
7a3dcaf6 JR |
103 | bool lttng_event_rule_is_equal(const struct lttng_event_rule *a, |
104 | const struct lttng_event_rule *b); | |
105 | ||
7a3dcaf6 JR |
106 | bool lttng_event_rule_get(struct lttng_event_rule *rule); |
107 | ||
7a3dcaf6 JR |
108 | void lttng_event_rule_put(struct lttng_event_rule *rule); |
109 | ||
7a3dcaf6 JR |
110 | enum lttng_domain_type lttng_event_rule_get_domain_type( |
111 | const struct lttng_event_rule *rule); | |
112 | ||
7a3dcaf6 | 113 | enum lttng_error_code lttng_event_rule_generate_filter_bytecode( |
58daac01 JR |
114 | struct lttng_event_rule *rule, |
115 | const struct lttng_credentials *creds); | |
7a3dcaf6 JR |
116 | |
117 | /* | |
118 | * If not present/implemented returns NULL. | |
119 | * Caller DOES NOT own the returned object. | |
120 | */ | |
7a3dcaf6 JR |
121 | const char *lttng_event_rule_get_filter(const struct lttng_event_rule *rule); |
122 | ||
123 | /* | |
124 | * If not present/implemented returns NULL. | |
125 | * Caller DOES NOT own the returned object. | |
126 | */ | |
2b00d462 | 127 | const struct lttng_bytecode *lttng_event_rule_get_filter_bytecode( |
7a3dcaf6 JR |
128 | const struct lttng_event_rule *rule); |
129 | ||
130 | /* | |
131 | * If not present/implemented return NULL. | |
132 | * Caller OWNS the returned object. | |
133 | */ | |
993578ff JR |
134 | enum lttng_event_rule_generate_exclusions_status |
135 | lttng_event_rule_generate_exclusions(const struct lttng_event_rule *rule, | |
136 | struct lttng_event_exclusion **exclusions); | |
7a3dcaf6 | 137 | |
7a3dcaf6 JR |
138 | const char *lttng_event_rule_type_str(enum lttng_event_rule_type type); |
139 | ||
959e3c66 JR |
140 | unsigned long lttng_event_rule_hash(const struct lttng_event_rule *rule); |
141 | ||
44760c20 JR |
142 | /* |
143 | * This is a compatibility helper allowing us to generate a sessiond-side (not | |
144 | * communication) `struct lttng_event` object from an event rule. | |
145 | * | |
146 | * This effectively bridges older parts of the code using those structures and | |
147 | * new event-rule based code. | |
148 | * | |
149 | * The caller owns the returned object. | |
150 | */ | |
44760c20 JR |
151 | struct lttng_event *lttng_event_rule_generate_lttng_event( |
152 | const struct lttng_event_rule *rule); | |
153 | ||
154 | /* Test if an event rule targets an agent domain. */ | |
44760c20 JR |
155 | bool lttng_event_rule_targets_agent_domain(const struct lttng_event_rule *rule); |
156 | ||
6a751b95 JR |
157 | enum lttng_error_code lttng_event_rule_mi_serialize( |
158 | const struct lttng_event_rule *rule, struct mi_writer *writer); | |
159 | ||
48a40005 SM |
160 | #if defined(__cplusplus) |
161 | } | |
162 | #endif | |
163 | ||
7a3dcaf6 | 164 | #endif /* LTTNG_EVENT_RULE_INTERNAL_H */ |