Cleanup: enforce const-correctness in notification thread
[lttng-tools.git] / include / lttng / condition / evaluation-internal.h
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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_EVALUATION_INTERNAL_H
19#define LTTNG_EVALUATION_INTERNAL_H
20
21#include <lttng/condition/evaluation.h>
22#include <common/macros.h>
23#include <common/buffer-view.h>
3647288f 24#include <common/dynamic-buffer.h>
a58c490f 25#include <stdbool.h>
3897deca 26#include <sys/types.h>
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27
28typedef void (*evaluation_destroy_cb)(struct lttng_evaluation *evaluation);
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29typedef int (*evaluation_serialize_cb)(
30 const struct lttng_evaluation *evaluation,
3647288f 31 struct lttng_dynamic_buffer *buf);
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32
33struct lttng_evaluation_comm {
34 /* enum lttng_condition_type type */
35 int8_t type;
36 char payload[];
37} LTTNG_PACKED;
38
39struct lttng_evaluation {
40 enum lttng_condition_type type;
41 evaluation_serialize_cb serialize;
42 evaluation_destroy_cb destroy;
43};
44
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45LTTNG_HIDDEN
46void lttng_evaluation_init(struct lttng_evaluation *evaluation,
47 enum lttng_condition_type type);
48
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49LTTNG_HIDDEN
50ssize_t lttng_evaluation_create_from_buffer(const struct lttng_buffer_view *view,
51 struct lttng_evaluation **evaluation);
52
53LTTNG_HIDDEN
9b63a4aa 54int lttng_evaluation_serialize(const struct lttng_evaluation *evaluation,
3647288f 55 struct lttng_dynamic_buffer *buf);
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56
57#endif /* LTTNG_EVALUATION_INTERNAL_H */
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