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"
30 static const UnitActiveState state_translation_table[_TARGET_STATE_MAX] = {
31 [TARGET_DEAD] = UNIT_INACTIVE,
32 [TARGET_ACTIVE] = UNIT_ACTIVE
35 static const char* const state_string_table[_TARGET_STATE_MAX] = {
36 [TARGET_DEAD] = "dead",
37 [TARGET_ACTIVE] = "active"
40 static void target_init(Unit *u) {
41 Target *t = TARGET(u);
44 assert(u->meta.load_state == UNIT_STUB);
49 static void target_dump(Unit *u, FILE *f, const char *prefix) {
50 Target *t = TARGET(u);
56 "%sTarget State: %s\n",
57 prefix, state_string_table[t->state]);
60 static void target_set_state(Target *t, TargetState state) {
61 TargetState old_state;
67 if (state != old_state)
68 log_debug("%s changed %s → %s", UNIT(t)->meta.id, state_string_table[old_state], state_string_table[state]);
70 unit_notify(UNIT(t), state_translation_table[old_state], state_translation_table[state]);
73 static int target_start(Unit *u) {
74 Target *t = TARGET(u);
77 assert(t->state == TARGET_DEAD);
79 target_set_state(t, TARGET_ACTIVE);
83 static int target_stop(Unit *u) {
84 Target *t = TARGET(u);
87 assert(t->state == TARGET_ACTIVE);
89 target_set_state(t, TARGET_DEAD);
93 static UnitActiveState target_active_state(Unit *u) {
96 return state_translation_table[TARGET(u)->state];
99 static const char *target_sub_state_to_string(Unit *u) {
102 return state_string_table[TARGET(u)->state];
105 int target_get_runlevel(Target *t) {
107 static const struct {
111 { SPECIAL_RUNLEVEL5_TARGET, '5' },
112 { SPECIAL_RUNLEVEL4_TARGET, '4' },
113 { SPECIAL_RUNLEVEL3_TARGET, '3' },
114 { SPECIAL_RUNLEVEL2_TARGET, '2' },
115 { SPECIAL_RUNLEVEL1_TARGET, '1' },
116 { SPECIAL_RUNLEVEL0_TARGET, '0' },
117 { SPECIAL_RUNLEVEL6_TARGET, '6' },
124 /* Tries to determine if this is a SysV runlevel and returns
125 * it if that is so. */
127 for (i = 0; i < ELEMENTSOF(table); i++)
128 if (unit_has_name(UNIT(t), table[i].special))
129 return table[i].runlevel;
134 const UnitVTable target_vtable = {
138 .load = unit_load_fragment_and_dropin,
142 .start = target_start,
145 .active_state = target_active_state,
146 .sub_state_to_string = target_sub_state_to_string