1 /*-*- Mode: C; c-basic-offset: 8 -*-*/
4 This file is part of systemd.
6 Copyright 2010 Lennart Poettering
8 systemd is free software; you can redistribute it and/or modify it
9 under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
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
16 General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
27 #include "load-fragment.h"
29 #include "dbus-target.h"
31 static const UnitActiveState state_translation_table[_TARGET_STATE_MAX] = {
32 [TARGET_DEAD] = UNIT_INACTIVE,
33 [TARGET_ACTIVE] = UNIT_ACTIVE
36 static const char* const state_string_table[_TARGET_STATE_MAX] = {
37 [TARGET_DEAD] = "dead",
38 [TARGET_ACTIVE] = "active"
41 static void target_dump(Unit *u, FILE *f, const char *prefix) {
42 Target *t = TARGET(u);
48 "%sTarget State: %s\n",
49 prefix, state_string_table[t->state]);
52 static void target_set_state(Target *t, TargetState state) {
53 TargetState old_state;
59 if (state != old_state)
60 log_debug("%s changed %s → %s", UNIT(t)->meta.id, state_string_table[old_state], state_string_table[state]);
62 unit_notify(UNIT(t), state_translation_table[old_state], state_translation_table[state]);
65 static int target_start(Unit *u) {
66 Target *t = TARGET(u);
69 assert(t->state == TARGET_DEAD);
71 target_set_state(t, TARGET_ACTIVE);
75 static int target_stop(Unit *u) {
76 Target *t = TARGET(u);
79 assert(t->state == TARGET_ACTIVE);
81 target_set_state(t, TARGET_DEAD);
85 static UnitActiveState target_active_state(Unit *u) {
88 return state_translation_table[TARGET(u)->state];
91 static const char *target_sub_state_to_string(Unit *u) {
94 return state_string_table[TARGET(u)->state];
97 int target_get_runlevel(Target *t) {
103 { SPECIAL_RUNLEVEL5_TARGET, '5' },
104 { SPECIAL_RUNLEVEL4_TARGET, '4' },
105 { SPECIAL_RUNLEVEL3_TARGET, '3' },
106 { SPECIAL_RUNLEVEL2_TARGET, '2' },
107 { SPECIAL_RUNLEVEL1_TARGET, '1' },
108 { SPECIAL_RUNLEVEL0_TARGET, '0' },
109 { SPECIAL_RUNLEVEL6_TARGET, '6' },
116 /* Tries to determine if this is a SysV runlevel and returns
117 * it if that is so. */
119 for (i = 0; i < ELEMENTSOF(table); i++)
120 if (unit_has_name(UNIT(t), table[i].special))
121 return table[i].runlevel;
126 const UnitVTable target_vtable = {
129 .load = unit_load_fragment_and_dropin,
133 .start = target_start,
136 .active_state = target_active_state,
137 .sub_state_to_string = target_sub_state_to_string,
139 .bus_message_handler = bus_target_message_handler