~mdw / fwd / blame
| Commit | Line | Data |
|---|---|---|
| 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 -------------------------------------------------*/ |