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1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
2 | ||
3 | /*** | |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2011 Lennart Poettering | |
7 | ||
8 | systemd is free software; you can redistribute it and/or modify it | |
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9 | under the terms of the GNU Lesser General Public License as published by |
10 | the Free Software Foundation; either version 2.1 of the License, or | |
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11 | (at your option) any later version. |
12 | ||
13 | systemd is distributed in the hope that it will be useful, but | |
14 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
5430f7f2 | 16 | Lesser General Public License for more details. |
20263082 | 17 | |
5430f7f2 | 18 | You should have received a copy of the GNU Lesser General Public License |
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19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. |
20 | ***/ | |
21 | ||
22 | #include <assert.h> | |
23 | #include <string.h> | |
24 | ||
90821c93 | 25 | #include "logind-device.h" |
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26 | #include "util.h" |
27 | ||
28 | Device* device_new(Manager *m, const char *sysfs) { | |
29 | Device *d; | |
30 | ||
31 | assert(m); | |
32 | assert(sysfs); | |
33 | ||
34 | d = new0(Device, 1); | |
35 | if (!d) | |
36 | return NULL; | |
37 | ||
38 | d->sysfs = strdup(sysfs); | |
39 | if (!d->sysfs) { | |
40 | free(d); | |
41 | return NULL; | |
42 | } | |
43 | ||
44 | if (hashmap_put(m->devices, d->sysfs, d) < 0) { | |
45 | free(d->sysfs); | |
46 | free(d); | |
47 | return NULL; | |
48 | } | |
49 | ||
50 | d->manager = m; | |
51 | dual_timestamp_get(&d->timestamp); | |
52 | ||
53 | return d; | |
54 | } | |
55 | ||
56 | void device_free(Device *d) { | |
57 | assert(d); | |
58 | ||
59 | device_detach(d); | |
60 | ||
61 | hashmap_remove(d->manager->devices, d->sysfs); | |
62 | ||
63 | free(d->sysfs); | |
64 | free(d); | |
65 | } | |
66 | ||
67 | void device_detach(Device *d) { | |
f1a8e221 | 68 | Seat *s; |
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69 | assert(d); |
70 | ||
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71 | if (!d->seat) |
72 | return; | |
20263082 | 73 | |
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74 | s = d->seat; |
75 | LIST_REMOVE(Device, devices, d->seat->devices, d); | |
20263082 | 76 | d->seat = NULL; |
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77 | |
78 | seat_add_to_gc_queue(s); | |
79 | seat_send_changed(s, "CanGraphical\0"); | |
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80 | } |
81 | ||
82 | void device_attach(Device *d, Seat *s) { | |
83 | assert(d); | |
84 | assert(s); | |
85 | ||
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86 | if (d->seat == s) |
87 | return; | |
88 | ||
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89 | if (d->seat) |
90 | device_detach(d); | |
91 | ||
20263082 | 92 | d->seat = s; |
3f49d45a | 93 | LIST_PREPEND(Device, devices, s->devices, d); |
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94 | |
95 | seat_send_changed(s, "CanGraphical\0"); | |
20263082 | 96 | } |