Refactoring: introduce lttng_tracker_ids_serialize
[lttng-tools.git] / include / lttng / tracker-internal.h
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1/*
2 * Copyright (C) 2019 - Jonathan Rajotte-Julien <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_TRACKER_INTERNAL_H
19#define LTTNG_TRACKER_INTERNAL_H
20
2d97a006 21#include <common/macros.h>
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22#include <common/dynamic-buffer.h>
23#include <lttng/constant.h>
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24#include <lttng/tracker.h>
25#include <stdbool.h>
26
27struct lttng_tracker_id {
28 enum lttng_tracker_id_type type;
29 int value;
30 char *string;
31};
32
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33struct lttng_tracker_ids {
34 struct lttng_tracker_id *id_array;
35 unsigned int count;
36};
37
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38LTTNG_HIDDEN
39bool lttng_tracker_id_is_equal(const struct lttng_tracker_id *left,
40 const struct lttng_tracker_id *right);
41
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42/*
43 * A copy acts like memcpy. It does not allocate new memory.
44 */
45LTTNG_HIDDEN
46int lttng_tracker_id_copy(struct lttng_tracker_id *dest,
47 const struct lttng_tracker_id *src);
48
49/*
50 * Duplicate an lttng_tracker_id.
51 * The returned object must be freed via lttng_tracker_id_destroy.
52 */
53LTTNG_HIDDEN
54struct lttng_tracker_id *lttng_tracker_id_duplicate(
55 const struct lttng_tracker_id *src);
56
57/*
58 * Allocate a new list of lttng_tracker_id.
59 * The returned object must be freed via lttng_tracker_ids_destroy.
60 */
61LTTNG_HIDDEN
62struct lttng_tracker_ids *lttng_tracker_ids_create(unsigned int base_count);
63
64/*
65 * Return the non-const pointer of an element at index "index" of a
66 * lttng_tracker_ids.
67 *
68 * The ownership of the lttng_tracker_id element is NOT transfered.
69 * The returned object can NOT be freed via lttng_tracker_id_destroy.
70 */
2d97a006 71LTTNG_HIDDEN
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72struct lttng_tracker_id *lttng_tracker_ids_get_pointer_of_index(
73 const struct lttng_tracker_ids *list, unsigned int index);
2d97a006 74
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75/*
76 * Serialize a ids collection to a lttng_dynamic_buffer.
77 * Return LTTNG_OK on success, negative lttng error code on error.
78 */
79LTTNG_HIDDEN
80int lttng_tracker_ids_serialize(const struct lttng_tracker_ids *ids,
81 struct lttng_dynamic_buffer *buffer);
82
2d97a006 83#endif /* LTTNG_TRACKER_INTERNAL_H */
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