9588bc3209
"make check-api-unused" informs us about code that is not used anymore or that is exported but only used internally. Fix these all over the place.
127 lines
3.3 KiB
C
127 lines
3.3 KiB
C
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
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/***
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This file is part of systemd.
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Copyright 2011 Lennart Poettering
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include <assert.h>
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#include <string.h>
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#include "util.h"
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#include "logind-device.h"
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Device* device_new(Manager *m, const char *sysfs, bool master) {
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Device *d;
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assert(m);
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assert(sysfs);
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d = new0(Device, 1);
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if (!d)
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return NULL;
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d->sysfs = strdup(sysfs);
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if (!d->sysfs) {
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free(d);
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return NULL;
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}
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if (hashmap_put(m->devices, d->sysfs, d) < 0) {
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free(d->sysfs);
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free(d);
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return NULL;
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}
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d->manager = m;
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d->master = master;
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dual_timestamp_get(&d->timestamp);
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return d;
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}
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static void device_detach(Device *d) {
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Seat *s;
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SessionDevice *sd;
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assert(d);
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if (!d->seat)
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return;
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while ((sd = d->session_devices))
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session_device_free(sd);
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s = d->seat;
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LIST_REMOVE(devices, d->seat->devices, d);
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d->seat = NULL;
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if (!seat_has_master_device(s)) {
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seat_add_to_gc_queue(s);
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seat_send_changed(s, "CanGraphical", NULL);
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}
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}
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void device_free(Device *d) {
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assert(d);
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device_detach(d);
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hashmap_remove(d->manager->devices, d->sysfs);
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free(d->sysfs);
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free(d);
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}
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void device_attach(Device *d, Seat *s) {
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Device *i;
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bool had_master;
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assert(d);
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assert(s);
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if (d->seat == s)
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return;
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if (d->seat)
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device_detach(d);
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d->seat = s;
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had_master = seat_has_master_device(s);
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/* We keep the device list sorted by the "master" flag. That is, master
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* devices are at the front, other devices at the tail. As there is no
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* way to easily add devices at the list-tail, we need to iterate the
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* list to find the first non-master device when adding non-master
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* devices. We assume there is only a few (normally 1) master devices
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* per seat, so we iterate only a few times. */
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if (d->master || !s->devices)
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LIST_PREPEND(devices, s->devices, d);
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else {
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LIST_FOREACH(devices, i, s->devices) {
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if (!i->devices_next || !i->master) {
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LIST_INSERT_AFTER(devices, s->devices, i, d);
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break;
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}
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}
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}
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if (!had_master && d->master)
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seat_send_changed(s, "CanGraphical", NULL);
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}
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