| Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 1 | #ifndef LOCK_DEV |
| 2 | #define LOCK_DEV |
| 3 | |
| 4 | /* Copyright 2005,2009,2018 Alain Knaff. |
| 5 | * This file is part of mtools. |
| 6 | * |
| 7 | * Mtools is free software: you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License as published by |
| 9 | * the Free Software Foundation, either version 3 of the License, or |
| 10 | * (at your option) any later version. |
| 11 | * |
| 12 | * Mtools is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | * GNU General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License |
| 18 | * along with Mtools. If not, see <http://www.gnu.org/licenses/>. |
| 19 | * |
| 20 | * Create an advisory lock on the device to prevent concurrent writes. |
| 21 | * Uses either lockf, flock, or fcntl locking methods. See the Makefile |
| 22 | * and the Configure files for how to specify the proper method. |
| 23 | */ |
| 24 | |
| 25 | extern int lock_dev(int fd, int mode, struct device *dev); |
| 26 | |
| 27 | #endif |