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03467c88 | 1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
5cb5a6ff | 2 | |
c2f1db8f | 3 | #pragma once |
5cb5a6ff | 4 | |
a7334b09 LP |
5 | /*** |
6 | This file is part of systemd. | |
7 | ||
8 | Copyright 2010 Lennart Poettering | |
9 | ||
10 | systemd is free software; you can redistribute it and/or modify it | |
5430f7f2 LP |
11 | under the terms of the GNU Lesser General Public License as published by |
12 | the Free Software Foundation; either version 2.1 of the License, or | |
a7334b09 LP |
13 | (at your option) any later version. |
14 | ||
15 | systemd is distributed in the hope that it will be useful, but | |
16 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
5430f7f2 | 18 | Lesser General Public License for more details. |
a7334b09 | 19 | |
5430f7f2 | 20 | You should have received a copy of the GNU Lesser General Public License |
a7334b09 LP |
21 | along with systemd; If not, see <http://www.gnu.org/licenses/>. |
22 | ***/ | |
23 | ||
5cb5a6ff LP |
24 | typedef struct Device Device; |
25 | ||
5cb5a6ff LP |
26 | /* We simply watch devices, we cannot plug/unplug them. That |
27 | * simplifies the state engine greatly */ | |
28 | typedef enum DeviceState { | |
29 | DEVICE_DEAD, | |
628c89cc LP |
30 | DEVICE_TENTATIVE, /* mounted or swapped, but not (yet) announced by udev */ |
31 | DEVICE_PLUGGED, /* announced by udev */ | |
6326a423 LP |
32 | _DEVICE_STATE_MAX, |
33 | _DEVICE_STATE_INVALID = -1 | |
5cb5a6ff LP |
34 | } DeviceState; |
35 | ||
628c89cc LP |
36 | typedef enum DeviceFound { |
37 | DEVICE_NOT_FOUND = 0, | |
38 | DEVICE_FOUND_UDEV = 1, | |
39 | DEVICE_FOUND_MOUNT = 2, | |
40 | DEVICE_FOUND_SWAP = 4, | |
41 | } DeviceFound; | |
42 | ||
5cb5a6ff | 43 | struct Device { |
ac155bb8 | 44 | Unit meta; |
5cb5a6ff | 45 | |
25ac040b | 46 | char *sysfs; |
628c89cc | 47 | DeviceFound found; |
8fe914ec | 48 | |
35b8ca3a | 49 | /* In order to be able to distinguish dependencies on |
8fe914ec LP |
50 | different device nodes we might end up creating multiple |
51 | devices for the same sysfs path. We chain them up here. */ | |
8fe914ec | 52 | LIST_FIELDS(struct Device, same_sysfs); |
7fab9d01 | 53 | |
f6200941 | 54 | DeviceState state, deserialized_state; |
5cb5a6ff LP |
55 | }; |
56 | ||
87f0e418 | 57 | extern const UnitVTable device_vtable; |
5cb5a6ff | 58 | |
44a6b1b6 ZJS |
59 | const char* device_state_to_string(DeviceState i) _const_; |
60 | DeviceState device_state_from_string(const char *s) _pure_; | |
628c89cc LP |
61 | |
62 | int device_found_node(Manager *m, const char *node, bool add, DeviceFound found, bool now); |