mirror of
https://github.com/systemd/systemd.git
synced 2024-12-25 01:34:28 +03:00
112 lines
2.7 KiB
C
112 lines
2.7 KiB
C
/*-*- Mode: C; c-basic-offset: 8 -*-*/
|
|
|
|
/***
|
|
This file is part of systemd.
|
|
|
|
Copyright 2010 Lennart Poettering
|
|
|
|
systemd is free software; you can redistribute it and/or modify it
|
|
under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 2 of the License, or
|
|
(at your option) any later version.
|
|
|
|
systemd is distributed in the hope that it will be useful, but
|
|
WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with systemd; If not, see <http://www.gnu.org/licenses/>.
|
|
***/
|
|
|
|
#include <errno.h>
|
|
|
|
#include "unit.h"
|
|
#include "target.h"
|
|
#include "load-fragment.h"
|
|
#include "log.h"
|
|
|
|
static const UnitActiveState state_translation_table[_TARGET_STATE_MAX] = {
|
|
[TARGET_DEAD] = UNIT_INACTIVE,
|
|
[TARGET_ACTIVE] = UNIT_ACTIVE
|
|
};
|
|
|
|
static const char* const state_string_table[_TARGET_STATE_MAX] = {
|
|
[TARGET_DEAD] = "dead",
|
|
[TARGET_ACTIVE] = "active"
|
|
};
|
|
|
|
static int target_init(Unit *u) {
|
|
int r;
|
|
assert(u);
|
|
|
|
/* Make sure this config file actually exists */
|
|
|
|
if ((r = unit_load_fragment_and_dropin(u)) <= 0)
|
|
return r < 0 ? r : -ENOENT;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void target_dump(Unit *u, FILE *f, const char *prefix) {
|
|
Target *t = TARGET(u);
|
|
|
|
assert(t);
|
|
assert(f);
|
|
|
|
fprintf(f,
|
|
"%sTarget State: %s\n",
|
|
prefix, state_string_table[t->state]);
|
|
}
|
|
|
|
static void target_set_state(Target *t, TargetState state) {
|
|
TargetState old_state;
|
|
assert(t);
|
|
|
|
old_state = t->state;
|
|
t->state = state;
|
|
|
|
log_debug("%s changed %s → %s", unit_id(UNIT(t)), state_string_table[old_state], state_string_table[state]);
|
|
|
|
unit_notify(UNIT(t), state_translation_table[old_state], state_translation_table[state]);
|
|
}
|
|
|
|
static int target_start(Unit *u) {
|
|
Target *t = TARGET(u);
|
|
|
|
assert(t);
|
|
assert(t->state == TARGET_DEAD);
|
|
|
|
target_set_state(t, TARGET_ACTIVE);
|
|
return 0;
|
|
}
|
|
|
|
static int target_stop(Unit *u) {
|
|
Target *t = TARGET(u);
|
|
|
|
assert(t);
|
|
assert(t->state == TARGET_ACTIVE);
|
|
|
|
target_set_state(t, TARGET_DEAD);
|
|
return 0;
|
|
}
|
|
|
|
static UnitActiveState target_active_state(Unit *u) {
|
|
assert(u);
|
|
|
|
return state_translation_table[TARGET(u)->state];
|
|
}
|
|
|
|
const UnitVTable target_vtable = {
|
|
.suffix = ".target",
|
|
|
|
.init = target_init,
|
|
|
|
.dump = target_dump,
|
|
|
|
.start = target_start,
|
|
.stop = target_stop,
|
|
|
|
.active_state = target_active_state
|
|
};
|