Cleanup: enforce const-correctness in notification thread
[lttng-tools.git] / include / lttng / action / action-internal.h
1 /*
2 * Copyright (C) 2017 - Jérémie Galarneau <jeremie.galarneau@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_ACTION_INTERNAL_H
19 #define LTTNG_ACTION_INTERNAL_H
20
21 #include <lttng/action/action.h>
22 #include <common/macros.h>
23 #include <common/buffer-view.h>
24 #include <common/dynamic-buffer.h>
25 #include <stdbool.h>
26 #include <sys/types.h>
27
28 typedef bool (*action_validate_cb)(struct lttng_action *action);
29 typedef void (*action_destroy_cb)(struct lttng_action *action);
30 typedef int (*action_serialize_cb)(struct lttng_action *action,
31 struct lttng_dynamic_buffer *buf);
32
33 struct lttng_action {
34 enum lttng_action_type type;
35 action_validate_cb validate;
36 action_serialize_cb serialize;
37 action_destroy_cb destroy;
38 };
39
40 struct lttng_action_comm {
41 /* enum lttng_action_type */
42 int8_t action_type;
43 } LTTNG_PACKED;
44
45 LTTNG_HIDDEN
46 bool lttng_action_validate(struct lttng_action *action);
47
48 LTTNG_HIDDEN
49 int lttng_action_serialize(struct lttng_action *action,
50 struct lttng_dynamic_buffer *buf);
51
52 LTTNG_HIDDEN
53 ssize_t lttng_action_create_from_buffer(const struct lttng_buffer_view *view,
54 struct lttng_action **action);
55
56 LTTNG_HIDDEN
57 enum lttng_action_type lttng_action_get_type_const(
58 const struct lttng_action *action);
59
60 #endif /* LTTNG_ACTION_INTERNAL_H */
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