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