SoW-2019-0002: Dynamic Snapshot
[lttng-tools.git] / include / lttng / condition / event-rule-internal.h
1 /*
2 * Copyright (C) 2019 - Jonathan Rajotte <jonathan.rajotte-julien@efficios.com>
3 *
4 * This library is free software; you can redistribute it and/or modify it
5 * under the terms of the GNU Lesser General Public License, version 2.1 only,
6 * as published by the Free Software Foundation.
7 *
8 * This library is distributed in the hope that it will be useful, but WITHOUT
9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
10 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
11 * for more details.
12 *
13 * You should have received a copy of the GNU Lesser General Public License
14 * along with this library; if not, write to the Free Software Foundation,
15 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
16 */
17
18 #ifndef LTTNG_CONDITION_event_rule_INTERNAL_H
19 #define LTTNG_CONDITION_event_rule_INTERNAL_H
20
21 #include <lttng/condition/condition-internal.h>
22 #include <common/buffer-view.h>
23 #include <common/macros.h>
24 #include <lttng/condition/evaluation-internal.h>
25
26 struct lttng_condition_event_rule {
27 struct lttng_condition parent;
28 struct lttng_event_rule *rule;
29 };
30
31 struct lttng_condition_event_rule_comm {
32 /* length excludes its own length */
33 uint32_t length;
34 /* rule */
35 char payload[];
36 } LTTNG_PACKED;
37
38 struct lttng_evaluation_event_rule {
39 struct lttng_evaluation parent;
40 char *name;
41 };
42
43 struct lttng_evaluation_event_rule_comm {
44 uint32_t trigger_name_length;
45 /* Trigger name */
46 char payload[];
47 } LTTNG_PACKED;
48
49
50 LTTNG_HIDDEN
51 ssize_t lttng_condition_event_rule_create_from_buffer(
52 const struct lttng_buffer_view *view,
53 struct lttng_condition **condition);
54
55 LTTNG_HIDDEN
56 enum lttng_condition_status
57 lttng_condition_event_rule_get_rule_no_const(
58 const struct lttng_condition *condition,
59 struct lttng_event_rule **rule);
60
61 LTTNG_HIDDEN
62 struct lttng_evaluation *lttng_evaluation_event_rule_create(const char* trigger_name);
63
64 LTTNG_HIDDEN
65 ssize_t lttng_evaluation_event_rule_create_from_buffer(
66 const struct lttng_buffer_view *view,
67 struct lttng_evaluation **_evaluation);
68
69 #endif /* LTTNG_CONDITION_event_rule_INTERNAL_H */
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