actions: introduce function typedef for creating actions from buffer
[lttng-tools.git] / include / lttng / action / action-internal.h
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a58c490f 1/*
ab5be9fa 2 * Copyright (C) 2017 Jérémie Galarneau <jeremie.galarneau@efficios.com>
a58c490f 3 *
ab5be9fa 4 * SPDX-License-Identifier: LGPL-2.1-only
a58c490f 5 *
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6 */
7
8#ifndef LTTNG_ACTION_INTERNAL_H
9#define LTTNG_ACTION_INTERNAL_H
10
11#include <lttng/action/action.h>
12#include <common/macros.h>
13#include <common/buffer-view.h>
3647288f 14#include <common/dynamic-buffer.h>
a58c490f 15#include <stdbool.h>
72756a3f 16#include <sys/types.h>
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17
18typedef bool (*action_validate_cb)(struct lttng_action *action);
19typedef void (*action_destroy_cb)(struct lttng_action *action);
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20typedef int (*action_serialize_cb)(struct lttng_action *action,
21 struct lttng_dynamic_buffer *buf);
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22typedef ssize_t (*action_create_from_buffer_cb)(
23 const struct lttng_buffer_view *view,
24 struct lttng_action **action);
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25
26struct lttng_action {
27 enum lttng_action_type type;
28 action_validate_cb validate;
29 action_serialize_cb serialize;
30 action_destroy_cb destroy;
31};
32
33struct lttng_action_comm {
34 /* enum lttng_action_type */
35 int8_t action_type;
36} LTTNG_PACKED;
37
38LTTNG_HIDDEN
39bool lttng_action_validate(struct lttng_action *action);
40
41LTTNG_HIDDEN
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42int lttng_action_serialize(struct lttng_action *action,
43 struct lttng_dynamic_buffer *buf);
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44
45LTTNG_HIDDEN
46ssize_t lttng_action_create_from_buffer(const struct lttng_buffer_view *view,
47 struct lttng_action **action);
48
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49LTTNG_HIDDEN
50enum lttng_action_type lttng_action_get_type_const(
51 const struct lttng_action *action);
52
a58c490f 53#endif /* LTTNG_ACTION_INTERNAL_H */
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