blob: fb6d3c6c044bde948f5c055b0aae4964398e4332 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
|
/*************************************************************************
* Copyright (C) 2010-2011 Tavian Barnes <tavianator@tavianator.com> *
* *
* This file is part of The Dimension Library. *
* *
* The Dimension Library is free software; you can redistribute it and/ *
* or modify it under the terms of the GNU Lesser General Public License *
* as published by the Free Software Foundation; either version 3 of the *
* License, or (at your option) any later version. *
* *
* The Dimension Library is distributed in the hope that it will be *
* useful, but WITHOUT ANY WARRANTY; without even the implied warranty *
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
* Lesser General Public License for more details. *
* *
* You should have received a copy of the GNU Lesser General Public *
* License along with this program. If not, see *
* <http://www.gnu.org/licenses/>. *
*************************************************************************/
/**
* @file
* Reference count internal API.
*/
/**
* Initialize a reference count.
* @param[in,out] object The reference-counted object.
*/
#define DMNSN_REFCOUNT_INIT(object) (void)((object)->DMNSN_REFCOUNT_FIELD = 1)
/**
* Initialize a reference count in a statically-allocated object.
*/
#define DMNSN_REFCOUNT_INITIALIZER .DMNSN_REFCOUNT_FIELD = 1
/**
* Decrement a reference count.
* @param[in,out] object The reference-counted object to release.
* @return Whether the object is now garbage.
*/
#define DMNSN_DECREF(object) \
((object) && ((object)->DMNSN_REFCOUNT_FIELD == 0 \
|| --(object)->DMNSN_REFCOUNT_FIELD == 0))
|
