Commit | Line | Data |
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273b65be | 1 | /* |
83509119 JG |
2 | * ref.c: reference counting |
3 | * | |
4 | * Babeltrace Library | |
273b65be | 5 | * |
83509119 | 6 | * Copyright (c) 2015 Jérémie Galarneau <jeremie.galarneau@efficios.com> |
273b65be JG |
7 | * |
8 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
9 | * of this software and associated documentation files (the "Software"), to deal | |
10 | * in the Software without restriction, including without limitation the rights | |
11 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
12 | * copies of the Software, and to permit persons to whom the Software is | |
13 | * furnished to do so, subject to the following conditions: | |
14 | * | |
15 | * The above copyright notice and this permission notice shall be included in | |
16 | * all copies or substantial portions of the Software. | |
17 | * | |
18 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
19 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
20 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
21 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
22 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
23 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
24 | * SOFTWARE. | |
25 | */ | |
26 | ||
f6b2f71d PP |
27 | #define BT_LOG_TAG "REF" |
28 | #include <babeltrace/lib-logging-internal.h> | |
40547d22 | 29 | |
0f5e83e5 PP |
30 | #include <babeltrace/ref-internal.h> |
31 | #include <babeltrace/object-internal.h> | |
f6b2f71d | 32 | |
47601e5f | 33 | void *bt_get(void *ptr) |
273b65be | 34 | { |
47601e5f JG |
35 | struct bt_object *obj = ptr; |
36 | ||
a041af48 | 37 | if (unlikely(!obj)) { |
47601e5f JG |
38 | goto end; |
39 | } | |
273b65be | 40 | |
a041af48 | 41 | if (unlikely(obj->parent && bt_object_get_ref_count(obj) == 0)) { |
f6b2f71d PP |
42 | BT_LOGV("Incrementing object's parent's reference count: " |
43 | "addr=%p, parent-addr=%p", ptr, obj->parent); | |
47601e5f | 44 | bt_get(obj->parent); |
83509119 | 45 | } |
47601e5f | 46 | bt_ref_get(&obj->ref_count); |
f6b2f71d PP |
47 | BT_LOGV("Incremented object's reference count: %lu -> %lu: " |
48 | "addr=%p, new-count=%lu", obj->ref_count.count - 1, | |
49 | obj->ref_count.count, ptr, obj->ref_count.count); | |
47601e5f | 50 | end: |
b82cd9f0 | 51 | return obj; |
273b65be JG |
52 | } |
53 | ||
b703b34e | 54 | void bt_put(void *ptr) |
83509119 | 55 | { |
b703b34e | 56 | struct bt_object *obj = ptr; |
83509119 | 57 | |
a041af48 | 58 | if (unlikely(!obj)) { |
b703b34e | 59 | return; |
83509119 | 60 | } |
b703b34e | 61 | |
f6b2f71d PP |
62 | BT_LOGV("Decrementing object's reference count: %lu -> %lu: " |
63 | "addr=%p, cur-count=%lu", obj->ref_count.count, | |
64 | obj->ref_count.count - 1, ptr, obj->ref_count.count); | |
b703b34e | 65 | bt_ref_put(&obj->ref_count); |
83509119 | 66 | } |