2 * ref.c: reference counting
6 * Copyright (c) 2015 Jérémie Galarneau <jeremie.galarneau@efficios.com>
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9 * of this software and associated documentation files (the "Software"), to deal
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15 * The above copyright notice and this permission notice shall be included in
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27 #define BT_LOG_TAG "REF"
28 #include <babeltrace/lib-logging-internal.h>
30 #include <babeltrace/assert-pre-internal.h>
31 #include <babeltrace/ref-internal.h>
32 #include <babeltrace/object-internal.h>
34 void *bt_get(void *ptr
)
36 struct bt_object
*obj
= ptr
;
42 BT_ASSERT_PRE(obj
->is_shared
, "Object is not shared: addr=%p", obj
);
44 if (unlikely(!obj
->ref_count
.release
)) {
48 if (unlikely(obj
->parent
&& bt_object_get_ref_count(obj
) == 0)) {
49 BT_LOGV("Incrementing object's parent's reference count: "
50 "addr=%p, parent-addr=%p", ptr
, obj
->parent
);
53 BT_LOGV("Incrementing object's reference count: %lu -> %lu: "
54 "addr=%p, cur-count=%lu, new-count=%lu",
55 obj
->ref_count
.count
, obj
->ref_count
.count
+ 1,
57 obj
->ref_count
.count
, obj
->ref_count
.count
+ 1);
58 bt_ref_get(&obj
->ref_count
);
64 void bt_put(void *ptr
)
66 struct bt_object
*obj
= ptr
;
72 BT_ASSERT_PRE(obj
->is_shared
, "Object is not shared: addr=%p", obj
);
74 if (unlikely(!obj
->ref_count
.release
)) {
78 if (BT_LOG_ON_WARN
&& unlikely(bt_object_get_ref_count(obj
) == 0)) {
79 BT_LOGW("Decrementing a reference count set to 0: addr=%p",
83 BT_LOGV("Decrementing object's reference count: %lu -> %lu: "
84 "addr=%p, cur-count=%lu, new-count=%lu",
85 obj
->ref_count
.count
, obj
->ref_count
.count
- 1,
87 obj
->ref_count
.count
, obj
->ref_count
.count
- 1);
88 bt_ref_put(&obj
->ref_count
);
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