Modify bt_ctf_field_enumeration_get_single_mapping to return iterator
[babeltrace.git] / formats / ctf / ir / field-path.c
... / ...
CommitLineData
1/*
2 * field-path.c
3 *
4 * Babeltrace CTF IR - Field path
5 *
6 * Copyright 2013, 2014 Jérémie Galarneau <jeremie.galarneau@efficios.com>
7 * Copyright 2016 Philippe Proulx <pproulx@efficios.com>
8 *
9 * Permission is hereby granted, free of charge, to any person obtaining a copy
10 * of this software and associated documentation files (the "Software"), to deal
11 * in the Software without restriction, including without limitation the rights
12 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
13 * copies of the Software, and to permit persons to whom the Software is
14 * furnished to do so, subject to the following conditions:
15 *
16 * The above copyright notice and this permission notice shall be included in
17 * all copies or substantial portions of the Software.
18 *
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
20 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
22 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
23 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
24 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
25 * SOFTWARE.
26 */
27
28#include <babeltrace/ctf-ir/field-types.h>
29#include <babeltrace/ctf-ir/field-path-internal.h>
30#include <babeltrace/ctf-ir/field-path.h>
31#include <limits.h>
32#include <glib.h>
33
34static
35void field_path_destroy(struct bt_object *obj)
36{
37 struct bt_ctf_field_path *field_path = (struct bt_ctf_field_path *) obj;
38
39 if (!field_path) {
40 return;
41 }
42
43 if (field_path->indexes) {
44 g_array_free(field_path->indexes, TRUE);
45 }
46 g_free(field_path);
47}
48
49BT_HIDDEN
50struct bt_ctf_field_path *bt_ctf_field_path_create(void)
51{
52 struct bt_ctf_field_path *field_path = NULL;
53
54 field_path = g_new0(struct bt_ctf_field_path, 1);
55 if (!field_path) {
56 goto error;
57 }
58
59 bt_object_init(field_path, field_path_destroy);
60 field_path->root = BT_CTF_SCOPE_UNKNOWN;
61 field_path->indexes = g_array_new(TRUE, FALSE, sizeof(int));
62 if (!field_path->indexes) {
63 goto error;
64 }
65
66 return field_path;
67
68error:
69 BT_PUT(field_path);
70 return NULL;
71}
72
73BT_HIDDEN
74void bt_ctf_field_path_clear(struct bt_ctf_field_path *field_path)
75{
76 if (field_path->indexes->len > 0) {
77 g_array_remove_range(field_path->indexes, 0,
78 field_path->indexes->len);
79 }
80}
81
82BT_HIDDEN
83struct bt_ctf_field_path *bt_ctf_field_path_copy(
84 struct bt_ctf_field_path *path)
85{
86 struct bt_ctf_field_path *new_path = bt_ctf_field_path_create();
87
88 if (!new_path) {
89 goto end;
90 }
91
92 new_path->root = path->root;
93 g_array_insert_vals(new_path->indexes, 0,
94 path->indexes->data, path->indexes->len);
95end:
96 return new_path;
97}
98
99enum bt_ctf_scope bt_ctf_field_path_get_root_scope(
100 const struct bt_ctf_field_path *field_path)
101{
102 enum bt_ctf_scope scope = BT_CTF_SCOPE_UNKNOWN;
103
104 if (!field_path) {
105 goto end;
106 }
107
108 scope = field_path->root;
109
110end:
111 return scope;
112}
113
114int bt_ctf_field_path_get_index_count(
115 const struct bt_ctf_field_path *field_path)
116{
117 int ret = -1;
118
119 if (!field_path) {
120 goto end;
121 }
122
123 ret = field_path->indexes->len;
124
125end:
126 return ret;
127}
128
129int bt_ctf_field_path_get_index(const struct bt_ctf_field_path *field_path,
130 int index)
131{
132 int ret = INT_MIN;
133
134 if (!field_path || index < 0) {
135 goto end;
136 }
137
138 if (index >= field_path->indexes->len) {
139 goto end;
140 }
141
142 ret = g_array_index(field_path->indexes, int, index);
143
144end:
145 return ret;
146}
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