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57ceb980 MW |
1 | /* -*-c-*- |
2 | * | |
3 | * Common functionality for targets | |
4 | * | |
5 | * (c) 2018 Straylight/Edgeware | |
6 | */ | |
7 | ||
8 | /*----- Licensing notice --------------------------------------------------* | |
9 | * | |
10 | * This file is part of the `fwd' port forwarder. | |
11 | * | |
12 | * `fwd' is free software: you can redistribute it and/or modify it under | |
13 | * the terms of the GNU General Public License as published by the Free | |
14 | * Software Foundation; either version 2 of the License, or (at your | |
15 | * option) any later version. | |
16 | * | |
17 | * `fwd' is distributed in the hope that it will be useful, but WITHOUT | |
18 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
19 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
20 | * for more details. | |
21 | * | |
22 | * You should have received a copy of the GNU General Public License | |
23 | * along with `fwd'. If not, write to the Free Software Foundation, | |
24 | * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
25 | */ | |
26 | ||
27 | /*----- Header files ------------------------------------------------------*/ | |
28 | ||
29 | #include "fwd.h" | |
30 | ||
31 | /*----- Main code ---------------------------------------------------------*/ | |
32 | ||
33 | /* --- @target_inc@ --- * | |
34 | * | |
35 | * Arguments: @target *t@ = pointer to a source | |
36 | * | |
37 | * Returns: --- | |
38 | * | |
39 | * Use: Increments a target's refcount. | |
40 | */ | |
41 | ||
42 | void target_inc(target *t) { t->ref++; } | |
43 | ||
44 | /* --- @target_dec@ --- * | |
45 | * | |
46 | * Arguments: @target *t@ = pointer to a target | |
47 | * | |
48 | * Returns: --- | |
49 | * | |
50 | * Use: Decrements a target's refcount, destroying it if necessary. | |
51 | */ | |
52 | ||
53 | void target_dec(target *t) | |
54 | { | |
55 | assert(t->ref > 0); | |
56 | t->ref--; | |
57 | if (!t->ref) t->ops->destroy(t); | |
58 | } | |
59 | ||
60 | /*----- That's all, folks -------------------------------------------------*/ |