lib: make graph API const-correct
[babeltrace.git] / lib / object.c
1 /*
2 * Copyright (c) 2015 Jérémie Galarneau <jeremie.galarneau@efficios.com>
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a copy
5 * of this software and associated documentation files (the "Software"), to deal
6 * in the Software without restriction, including without limitation the rights
7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8 * copies of the Software, and to permit persons to whom the Software is
9 * furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20 * SOFTWARE.
21 */
22
23 #define BT_LOG_TAG "OBJECT"
24 #include <babeltrace/lib-logging-internal.h>
25
26 #include <babeltrace/assert-pre-internal.h>
27 #include <babeltrace/object-internal.h>
28
29 void bt_object_get_ref(const void *ptr)
30 {
31 struct bt_object *obj = (void *) ptr;
32
33 if (unlikely(!obj)) {
34 goto end;
35 }
36
37 BT_ASSERT_PRE(obj->is_shared, "Object is not shared: addr=%p", obj);
38 bt_object_get_no_null_check(obj);
39
40 end:
41 return;
42 }
43
44 void bt_object_put_ref(const void *ptr)
45 {
46 struct bt_object *obj = (void *) ptr;
47
48 if (unlikely(!obj)) {
49 return;
50 }
51
52 BT_ASSERT_PRE(obj->is_shared, "Object is not shared: addr=%p", obj);
53 BT_ASSERT_PRE(bt_object_get_ref_count(obj) > 0,
54 "Decrementing a reference count set to 0: addr=%p", ptr);
55 bt_object_put_no_null_check(obj);
56 }
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