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b011f6b0 PP |
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 | ||
1e6cfa95 PP |
28 | #define BT_LOG_TAG "FIELD-PATH" |
29 | #include <babeltrace/lib-logging-internal.h> | |
30 | ||
2e33ac5a | 31 | #include <babeltrace/ctf-ir/field-types.h> |
331b8d44 | 32 | #include <babeltrace/ctf-ir/field-types-internal.h> |
b011f6b0 PP |
33 | #include <babeltrace/ctf-ir/field-path-internal.h> |
34 | #include <babeltrace/ctf-ir/field-path.h> | |
35 | #include <limits.h> | |
544d0515 | 36 | #include <stdint.h> |
1e6cfa95 | 37 | #include <inttypes.h> |
f6ccaed9 | 38 | #include <babeltrace/assert-internal.h> |
b011f6b0 PP |
39 | #include <glib.h> |
40 | ||
41 | static | |
42 | void field_path_destroy(struct bt_object *obj) | |
43 | { | |
50842bdc | 44 | struct bt_field_path *field_path = (struct bt_field_path *) obj; |
b011f6b0 | 45 | |
1e6cfa95 PP |
46 | BT_LOGD("Destroying field path: addr=%p", obj); |
47 | ||
b011f6b0 PP |
48 | if (!field_path) { |
49 | return; | |
50 | } | |
51 | ||
52 | if (field_path->indexes) { | |
53 | g_array_free(field_path->indexes, TRUE); | |
54 | } | |
55 | g_free(field_path); | |
56 | } | |
57 | ||
58 | BT_HIDDEN | |
50842bdc | 59 | struct bt_field_path *bt_field_path_create(void) |
b011f6b0 | 60 | { |
50842bdc | 61 | struct bt_field_path *field_path = NULL; |
b011f6b0 | 62 | |
1e6cfa95 PP |
63 | BT_LOGD_STR("Creating empty field path object."); |
64 | ||
50842bdc | 65 | field_path = g_new0(struct bt_field_path, 1); |
b011f6b0 | 66 | if (!field_path) { |
1e6cfa95 | 67 | BT_LOGE_STR("Failed to allocate one field path."); |
b011f6b0 PP |
68 | goto error; |
69 | } | |
70 | ||
71 | bt_object_init(field_path, field_path_destroy); | |
50842bdc | 72 | field_path->root = BT_SCOPE_UNKNOWN; |
b011f6b0 PP |
73 | field_path->indexes = g_array_new(TRUE, FALSE, sizeof(int)); |
74 | if (!field_path->indexes) { | |
1e6cfa95 | 75 | BT_LOGE_STR("Failed to allocate a GArray."); |
b011f6b0 PP |
76 | goto error; |
77 | } | |
78 | ||
1e6cfa95 | 79 | BT_LOGD("Created empty field path object: addr=%p", field_path); |
b011f6b0 PP |
80 | return field_path; |
81 | ||
82 | error: | |
83 | BT_PUT(field_path); | |
84 | return NULL; | |
85 | } | |
86 | ||
87 | BT_HIDDEN | |
50842bdc | 88 | void bt_field_path_clear(struct bt_field_path *field_path) |
b011f6b0 PP |
89 | { |
90 | if (field_path->indexes->len > 0) { | |
91 | g_array_remove_range(field_path->indexes, 0, | |
92 | field_path->indexes->len); | |
93 | } | |
94 | } | |
95 | ||
96 | BT_HIDDEN | |
50842bdc PP |
97 | struct bt_field_path *bt_field_path_copy( |
98 | struct bt_field_path *path) | |
b011f6b0 | 99 | { |
50842bdc | 100 | struct bt_field_path *new_path; |
b011f6b0 | 101 | |
f6ccaed9 | 102 | BT_ASSERT(path); |
1e6cfa95 PP |
103 | BT_LOGD("Copying field path: addr=%p, index-count=%u", |
104 | path, path->indexes->len); | |
50842bdc | 105 | new_path = bt_field_path_create(); |
b011f6b0 | 106 | if (!new_path) { |
1e6cfa95 | 107 | BT_LOGE_STR("Cannot create empty field path."); |
b011f6b0 PP |
108 | goto end; |
109 | } | |
110 | ||
111 | new_path->root = path->root; | |
112 | g_array_insert_vals(new_path->indexes, 0, | |
113 | path->indexes->data, path->indexes->len); | |
1e6cfa95 PP |
114 | BT_LOGD("Copied field path: original-addr=%p, copy-addr=%p", |
115 | path, new_path); | |
b011f6b0 PP |
116 | end: |
117 | return new_path; | |
118 | } | |
119 | ||
50842bdc PP |
120 | enum bt_scope bt_field_path_get_root_scope( |
121 | const struct bt_field_path *field_path) | |
b011f6b0 | 122 | { |
50842bdc | 123 | enum bt_scope scope = BT_SCOPE_UNKNOWN; |
b011f6b0 PP |
124 | |
125 | if (!field_path) { | |
1e6cfa95 | 126 | BT_LOGW_STR("Invalid parameter: field path is NULL."); |
b011f6b0 PP |
127 | goto end; |
128 | } | |
129 | ||
130 | scope = field_path->root; | |
131 | ||
132 | end: | |
133 | return scope; | |
134 | } | |
135 | ||
50842bdc PP |
136 | int64_t bt_field_path_get_index_count( |
137 | const struct bt_field_path *field_path) | |
b011f6b0 | 138 | { |
1e6cfa95 PP |
139 | int64_t count = (int64_t) -1; |
140 | ||
141 | if (!field_path) { | |
142 | BT_LOGW_STR("Invalid parameter: field path is NULL."); | |
143 | goto end; | |
144 | } | |
145 | ||
146 | count = (int64_t) field_path->indexes->len; | |
147 | ||
148 | end: | |
149 | return count; | |
b011f6b0 PP |
150 | } |
151 | ||
50842bdc | 152 | int bt_field_path_get_index(const struct bt_field_path *field_path, |
9ac68eb1 | 153 | uint64_t index) |
b011f6b0 PP |
154 | { |
155 | int ret = INT_MIN; | |
156 | ||
9ac68eb1 | 157 | if (!field_path) { |
1e6cfa95 | 158 | BT_LOGW_STR("Invalid parameter: field path is NULL."); |
b011f6b0 PP |
159 | goto end; |
160 | } | |
161 | ||
162 | if (index >= field_path->indexes->len) { | |
1e6cfa95 PP |
163 | BT_LOGW("Invalid parameter: index is out of bounds: " |
164 | "addr=%p, index=%" PRIu64 ", count=%u", | |
165 | field_path, index, field_path->indexes->len); | |
b011f6b0 PP |
166 | goto end; |
167 | } | |
168 | ||
169 | ret = g_array_index(field_path->indexes, int, index); | |
170 | ||
171 | end: | |
172 | return ret; | |
173 | } |