SoW-2020-0002: Trace Hit Counters: trigger error reporting integration
[lttng-tools.git] / include / lttng / event-rule / tracepoint-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_EVENT_RULE_TRACEPOINT_INTERNAL_H
9 #define LTTNG_EVENT_RULE_TRACEPOINT_INTERNAL_H
10
11 #include <common/payload-view.h>
12 #include <common/macros.h>
13 #include <lttng/domain.h>
14 #include <lttng/event-rule/event-rule-internal.h>
15 #include <lttng/event-rule/tracepoint.h>
16 #include <lttng/event.h>
17
18 struct lttng_event_rule_tracepoint {
19 struct lttng_event_rule parent;
20
21 /* Domain. */
22 enum lttng_domain_type domain;
23
24 /* Name pattern. */
25 char *pattern;
26
27 /* Filter. */
28 char *filter_expression;
29
30 /* Loglevel. */
31 struct {
32 enum lttng_loglevel_type type;
33 int value;
34 } loglevel;
35
36 /* Exclusions. */
37 struct lttng_dynamic_pointer_array exclusions;
38
39 /* internal use only. */
40 struct {
41 char *filter;
42 struct lttng_bytecode *bytecode;
43 } internal_filter;
44 };
45
46 struct lttng_event_rule_tracepoint_comm {
47 /* enum lttng_domain_type. */
48 int8_t domain_type;
49 /* enum lttng_event_logleven_type. */
50 int8_t loglevel_type;
51 int32_t loglevel_value;
52 /* Includes terminator `\0`. */
53 uint32_t pattern_len;
54 /* Includes terminator `\0`. */
55 uint32_t filter_expression_len;
56 uint32_t exclusions_count;
57 uint32_t exclusions_len;
58 /*
59 * Payload is composed of, in that order:
60 * - pattern (null terminated),
61 * - filter expression (null terminated),
62 * - exclusions (32 bit length + null terminated string).
63 */
64 char payload[];
65 } LTTNG_PACKED;
66
67 LTTNG_HIDDEN
68 ssize_t lttng_event_rule_tracepoint_create_from_payload(
69 struct lttng_payload_view *view,
70 struct lttng_event_rule **rule);
71
72 #endif /* LTTNG_EVENT_RULE_TRACEPOINT_INTERNAL_H */
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