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87f0e418 LP |
1 | /*-*- Mode: C; c-basic-offset: 8 -*-*/ |
2 | ||
a7334b09 LP |
3 | /*** |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2010 Lennart Poettering | |
7 | ||
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. | |
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 | |
16 | General Public License for more details. | |
17 | ||
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/>. | |
20 | ***/ | |
21 | ||
87f0e418 LP |
22 | #include <assert.h> |
23 | #include <errno.h> | |
24 | #include <string.h> | |
25 | #include <sys/epoll.h> | |
26 | #include <sys/timerfd.h> | |
27 | #include <sys/poll.h> | |
0301abf4 LP |
28 | #include <stdlib.h> |
29 | #include <unistd.h> | |
87f0e418 LP |
30 | |
31 | #include "set.h" | |
32 | #include "unit.h" | |
33 | #include "macro.h" | |
34 | #include "strv.h" | |
35 | #include "load-fragment.h" | |
36 | #include "load-dropin.h" | |
37 | #include "log.h" | |
9e2f7c11 LP |
38 | #include "unit-name.h" |
39 | #include "specifier.h" | |
87f0e418 LP |
40 | |
41 | const UnitVTable * const unit_vtable[_UNIT_TYPE_MAX] = { | |
42 | [UNIT_SERVICE] = &service_vtable, | |
43 | [UNIT_TIMER] = &timer_vtable, | |
44 | [UNIT_SOCKET] = &socket_vtable, | |
45 | [UNIT_TARGET] = &target_vtable, | |
46 | [UNIT_DEVICE] = &device_vtable, | |
47 | [UNIT_MOUNT] = &mount_vtable, | |
48 | [UNIT_AUTOMOUNT] = &automount_vtable, | |
49 | [UNIT_SNAPSHOT] = &snapshot_vtable | |
50 | }; | |
51 | ||
87f0e418 LP |
52 | Unit *unit_new(Manager *m) { |
53 | Unit *u; | |
54 | ||
55 | assert(m); | |
56 | ||
57 | if (!(u = new0(Unit, 1))) | |
58 | return NULL; | |
59 | ||
60 | if (!(u->meta.names = set_new(string_hash_func, string_compare_func))) { | |
61 | free(u); | |
62 | return NULL; | |
63 | } | |
64 | ||
65 | u->meta.manager = m; | |
66 | u->meta.type = _UNIT_TYPE_INVALID; | |
67 | ||
68 | return u; | |
69 | } | |
70 | ||
f278026d LP |
71 | bool unit_has_name(Unit *u, const char *name) { |
72 | assert(u); | |
73 | assert(name); | |
74 | ||
75 | return !!set_get(u->meta.names, (char*) name); | |
76 | } | |
77 | ||
87f0e418 LP |
78 | int unit_add_name(Unit *u, const char *text) { |
79 | UnitType t; | |
9e2f7c11 | 80 | char *s = NULL, *i = NULL; |
87f0e418 LP |
81 | int r; |
82 | ||
83 | assert(u); | |
84 | assert(text); | |
85 | ||
9e2f7c11 LP |
86 | if (unit_name_is_template(text)) { |
87 | if (!u->meta.instance) | |
88 | return -EINVAL; | |
87f0e418 | 89 | |
9e2f7c11 LP |
90 | s = unit_name_replace_instance(text, u->meta.instance); |
91 | } else | |
92 | s = strdup(text); | |
87f0e418 | 93 | |
9e2f7c11 LP |
94 | if (!s) |
95 | return -ENOMEM; | |
87f0e418 | 96 | |
9e2f7c11 LP |
97 | if (!unit_name_is_valid(s)) { |
98 | r = -EINVAL; | |
99 | goto fail; | |
100 | } | |
e537352b | 101 | |
9e2f7c11 | 102 | assert_se((t = unit_name_to_type(s)) >= 0); |
87f0e418 | 103 | |
9e2f7c11 LP |
104 | if (u->meta.type != _UNIT_TYPE_INVALID && t != u->meta.type) { |
105 | r = -EINVAL; | |
106 | goto fail; | |
107 | } | |
87f0e418 | 108 | |
9e2f7c11 LP |
109 | if ((r = unit_name_to_instance(s, &i)) < 0) |
110 | goto fail; | |
87f0e418 | 111 | |
9e2f7c11 LP |
112 | if (i && unit_vtable[t]->no_instances) |
113 | goto fail; | |
114 | ||
115 | if (u->meta.type != _UNIT_TYPE_INVALID && !streq_ptr(u->meta.instance, i)) { | |
116 | r = -EINVAL; | |
117 | goto fail; | |
118 | } | |
119 | ||
120 | if (unit_vtable[t]->no_alias && | |
121 | !set_isempty(u->meta.names) && | |
122 | !set_get(u->meta.names, s)) { | |
123 | r = -EEXIST; | |
124 | goto fail; | |
125 | } | |
126 | ||
127 | if ((r = set_put(u->meta.names, s)) < 0) { | |
128 | if (r == -EEXIST) | |
129 | r = 0; | |
130 | goto fail; | |
87f0e418 LP |
131 | } |
132 | ||
133 | if ((r = hashmap_put(u->meta.manager->units, s, u)) < 0) { | |
134 | set_remove(u->meta.names, s); | |
9e2f7c11 | 135 | goto fail; |
87f0e418 LP |
136 | } |
137 | ||
e537352b | 138 | if (u->meta.type == _UNIT_TYPE_INVALID) { |
ef734fd6 | 139 | |
e537352b | 140 | u->meta.type = t; |
9e2f7c11 LP |
141 | u->meta.id = s; |
142 | u->meta.instance = i; | |
143 | ||
144 | LIST_PREPEND(Meta, units_per_type, u->meta.manager->units_per_type[t], &u->meta); | |
e537352b LP |
145 | |
146 | if (UNIT_VTABLE(u)->init) | |
147 | UNIT_VTABLE(u)->init(u); | |
9e2f7c11 LP |
148 | } else |
149 | free(i); | |
87f0e418 | 150 | |
c1e1601e | 151 | unit_add_to_dbus_queue(u); |
87f0e418 | 152 | return 0; |
9e2f7c11 LP |
153 | |
154 | fail: | |
155 | free(s); | |
156 | free(i); | |
157 | ||
158 | return r; | |
87f0e418 LP |
159 | } |
160 | ||
0ae97ec1 | 161 | int unit_choose_id(Unit *u, const char *name) { |
9e2f7c11 | 162 | char *s, *t = NULL; |
0ae97ec1 LP |
163 | |
164 | assert(u); | |
165 | assert(name); | |
166 | ||
9e2f7c11 LP |
167 | if (unit_name_is_template(name)) { |
168 | ||
169 | if (!u->meta.instance) | |
170 | return -EINVAL; | |
171 | ||
172 | if (!(t = unit_name_replace_instance(name, u->meta.instance))) | |
173 | return -ENOMEM; | |
174 | ||
175 | name = t; | |
176 | } | |
177 | ||
0ae97ec1 | 178 | /* Selects one of the names of this unit as the id */ |
9e2f7c11 LP |
179 | s = set_get(u->meta.names, (char*) name); |
180 | free(t); | |
0ae97ec1 | 181 | |
9e2f7c11 | 182 | if (!s) |
0ae97ec1 LP |
183 | return -ENOENT; |
184 | ||
185 | u->meta.id = s; | |
c1e1601e | 186 | unit_add_to_dbus_queue(u); |
9e2f7c11 | 187 | |
0ae97ec1 LP |
188 | return 0; |
189 | } | |
190 | ||
f50e0a01 LP |
191 | int unit_set_description(Unit *u, const char *description) { |
192 | char *s; | |
193 | ||
194 | assert(u); | |
195 | ||
196 | if (!(s = strdup(description))) | |
197 | return -ENOMEM; | |
198 | ||
199 | free(u->meta.description); | |
200 | u->meta.description = s; | |
c1e1601e LP |
201 | |
202 | unit_add_to_dbus_queue(u); | |
f50e0a01 LP |
203 | return 0; |
204 | } | |
205 | ||
87f0e418 LP |
206 | void unit_add_to_load_queue(Unit *u) { |
207 | assert(u); | |
819e213f | 208 | assert(u->meta.type != _UNIT_TYPE_INVALID); |
87f0e418 LP |
209 | |
210 | if (u->meta.load_state != UNIT_STUB || u->meta.in_load_queue) | |
211 | return; | |
212 | ||
213 | LIST_PREPEND(Meta, load_queue, u->meta.manager->load_queue, &u->meta); | |
214 | u->meta.in_load_queue = true; | |
215 | } | |
216 | ||
23a177ef LP |
217 | void unit_add_to_cleanup_queue(Unit *u) { |
218 | assert(u); | |
219 | ||
220 | if (u->meta.in_cleanup_queue) | |
221 | return; | |
222 | ||
223 | LIST_PREPEND(Meta, cleanup_queue, u->meta.manager->cleanup_queue, &u->meta); | |
224 | u->meta.in_cleanup_queue = true; | |
225 | } | |
226 | ||
c1e1601e LP |
227 | void unit_add_to_dbus_queue(Unit *u) { |
228 | assert(u); | |
819e213f | 229 | assert(u->meta.type != _UNIT_TYPE_INVALID); |
c1e1601e LP |
230 | |
231 | if (u->meta.load_state == UNIT_STUB || u->meta.in_dbus_queue || set_isempty(u->meta.manager->subscribed)) | |
232 | return; | |
233 | ||
234 | LIST_PREPEND(Meta, dbus_queue, u->meta.manager->dbus_unit_queue, &u->meta); | |
235 | u->meta.in_dbus_queue = true; | |
236 | } | |
237 | ||
87f0e418 LP |
238 | static void bidi_set_free(Unit *u, Set *s) { |
239 | Iterator i; | |
240 | Unit *other; | |
241 | ||
242 | assert(u); | |
243 | ||
244 | /* Frees the set and makes sure we are dropped from the | |
245 | * inverse pointers */ | |
246 | ||
247 | SET_FOREACH(other, s, i) { | |
248 | UnitDependency d; | |
249 | ||
250 | for (d = 0; d < _UNIT_DEPENDENCY_MAX; d++) | |
251 | set_remove(other->meta.dependencies[d], u); | |
252 | } | |
253 | ||
254 | set_free(s); | |
255 | } | |
256 | ||
257 | void unit_free(Unit *u) { | |
258 | UnitDependency d; | |
259 | Iterator i; | |
260 | char *t; | |
261 | ||
262 | assert(u); | |
263 | ||
c1e1601e LP |
264 | bus_unit_send_removed_signal(u); |
265 | ||
87f0e418 | 266 | /* Detach from next 'bigger' objects */ |
87f0e418 LP |
267 | SET_FOREACH(t, u->meta.names, i) |
268 | hashmap_remove_value(u->meta.manager->units, t, u); | |
269 | ||
ef734fd6 LP |
270 | if (u->meta.type != _UNIT_TYPE_INVALID) |
271 | LIST_REMOVE(Meta, units_per_type, u->meta.manager->units_per_type[u->meta.type], &u->meta); | |
272 | ||
87f0e418 LP |
273 | if (u->meta.in_load_queue) |
274 | LIST_REMOVE(Meta, load_queue, u->meta.manager->load_queue, &u->meta); | |
275 | ||
c1e1601e LP |
276 | if (u->meta.in_dbus_queue) |
277 | LIST_REMOVE(Meta, dbus_queue, u->meta.manager->dbus_unit_queue, &u->meta); | |
278 | ||
23a177ef LP |
279 | if (u->meta.in_cleanup_queue) |
280 | LIST_REMOVE(Meta, cleanup_queue, u->meta.manager->cleanup_queue, &u->meta); | |
281 | ||
e537352b LP |
282 | /* Free data and next 'smaller' objects */ |
283 | if (u->meta.job) | |
284 | job_free(u->meta.job); | |
285 | ||
23a177ef | 286 | if (u->meta.load_state != UNIT_STUB) |
87f0e418 LP |
287 | if (UNIT_VTABLE(u)->done) |
288 | UNIT_VTABLE(u)->done(u); | |
289 | ||
e537352b | 290 | cgroup_bonding_free_list(u->meta.cgroup_bondings); |
87f0e418 LP |
291 | |
292 | for (d = 0; d < _UNIT_DEPENDENCY_MAX; d++) | |
293 | bidi_set_free(u, u->meta.dependencies[d]); | |
294 | ||
295 | free(u->meta.description); | |
6be1e7d5 | 296 | free(u->meta.fragment_path); |
87f0e418 LP |
297 | |
298 | while ((t = set_steal_first(u->meta.names))) | |
299 | free(t); | |
300 | set_free(u->meta.names); | |
301 | ||
9e2f7c11 LP |
302 | free(u->meta.instance); |
303 | ||
87f0e418 LP |
304 | free(u); |
305 | } | |
306 | ||
307 | UnitActiveState unit_active_state(Unit *u) { | |
308 | assert(u); | |
309 | ||
310 | if (u->meta.load_state != UNIT_LOADED) | |
311 | return UNIT_INACTIVE; | |
312 | ||
313 | return UNIT_VTABLE(u)->active_state(u); | |
314 | } | |
315 | ||
10a94420 LP |
316 | const char* unit_sub_state_to_string(Unit *u) { |
317 | assert(u); | |
318 | ||
319 | return UNIT_VTABLE(u)->sub_state_to_string(u); | |
320 | } | |
321 | ||
23a177ef LP |
322 | static void complete_move(Set **s, Set **other) { |
323 | assert(s); | |
324 | assert(other); | |
87f0e418 | 325 | |
23a177ef LP |
326 | if (!*other) |
327 | return; | |
87f0e418 LP |
328 | |
329 | if (*s) | |
23a177ef LP |
330 | set_move(*s, *other); |
331 | else { | |
332 | *s = *other; | |
333 | *other = NULL; | |
334 | } | |
335 | } | |
87f0e418 | 336 | |
23a177ef LP |
337 | static void merge_names(Unit *u, Unit *other) { |
338 | char *t; | |
339 | Iterator i; | |
87f0e418 | 340 | |
23a177ef LP |
341 | assert(u); |
342 | assert(other); | |
343 | ||
344 | complete_move(&u->meta.names, &other->meta.names); | |
345 | ||
346 | while ((t = set_steal_first(other->meta.names))) | |
347 | free(t); | |
348 | ||
349 | set_free(other->meta.names); | |
350 | other->meta.names = NULL; | |
351 | other->meta.id = NULL; | |
352 | ||
353 | SET_FOREACH(t, u->meta.names, i) | |
354 | assert_se(hashmap_replace(u->meta.manager->units, t, u) == 0); | |
87f0e418 LP |
355 | } |
356 | ||
23a177ef LP |
357 | static void merge_dependencies(Unit *u, Unit *other, UnitDependency d) { |
358 | Iterator i; | |
359 | Unit *back; | |
87f0e418 | 360 | int r; |
23a177ef LP |
361 | |
362 | assert(u); | |
363 | assert(other); | |
364 | assert(d < _UNIT_DEPENDENCY_MAX); | |
365 | ||
366 | SET_FOREACH(back, other->meta.dependencies[d], i) { | |
367 | UnitDependency k; | |
368 | ||
369 | for (k = 0; k < _UNIT_DEPENDENCY_MAX; k++) | |
370 | if ((r = set_remove_and_put(back->meta.dependencies[k], other, u)) < 0) { | |
371 | ||
372 | if (r == -EEXIST) | |
373 | set_remove(back->meta.dependencies[k], other); | |
374 | else | |
375 | assert(r == -ENOENT); | |
376 | } | |
377 | } | |
378 | ||
379 | complete_move(&u->meta.dependencies[d], &other->meta.dependencies[d]); | |
380 | ||
381 | set_free(other->meta.dependencies[d]); | |
382 | other->meta.dependencies[d] = NULL; | |
383 | } | |
384 | ||
385 | int unit_merge(Unit *u, Unit *other) { | |
87f0e418 LP |
386 | UnitDependency d; |
387 | ||
388 | assert(u); | |
389 | assert(other); | |
390 | assert(u->meta.manager == other->meta.manager); | |
9e2f7c11 | 391 | assert(u->meta.type != _UNIT_TYPE_INVALID); |
87f0e418 | 392 | |
cc916967 LP |
393 | other = unit_follow_merge(other); |
394 | ||
23a177ef LP |
395 | if (other == u) |
396 | return 0; | |
397 | ||
9e2f7c11 LP |
398 | if (u->meta.type != other->meta.type) |
399 | return -EINVAL; | |
400 | ||
401 | if (!streq_ptr(u->meta.instance, other->meta.instance)) | |
87f0e418 LP |
402 | return -EINVAL; |
403 | ||
cc916967 LP |
404 | if (other->meta.load_state != UNIT_STUB && |
405 | other->meta.load_state != UNIT_FAILED) | |
23a177ef | 406 | return -EEXIST; |
87f0e418 | 407 | |
819e213f LP |
408 | if (other->meta.job) |
409 | return -EEXIST; | |
410 | ||
411 | if (unit_active_state(other) != UNIT_INACTIVE) | |
412 | return -EEXIST; | |
413 | ||
87f0e418 | 414 | /* Merge names */ |
23a177ef | 415 | merge_names(u, other); |
87f0e418 LP |
416 | |
417 | /* Merge dependencies */ | |
418 | for (d = 0; d < _UNIT_DEPENDENCY_MAX; d++) | |
23a177ef | 419 | merge_dependencies(u, other, d); |
87f0e418 | 420 | |
23a177ef LP |
421 | other->meta.load_state = UNIT_MERGED; |
422 | other->meta.merged_into = u; | |
423 | ||
3616a49c LP |
424 | /* If there is still some data attached to the other node, we |
425 | * don't need it anymore, and can free it. */ | |
426 | if (other->meta.load_state != UNIT_STUB) | |
427 | if (UNIT_VTABLE(other)->done) | |
428 | UNIT_VTABLE(other)->done(other); | |
429 | ||
430 | unit_add_to_dbus_queue(u); | |
23a177ef LP |
431 | unit_add_to_cleanup_queue(other); |
432 | ||
433 | return 0; | |
434 | } | |
435 | ||
436 | int unit_merge_by_name(Unit *u, const char *name) { | |
437 | Unit *other; | |
9e2f7c11 LP |
438 | int r; |
439 | char *s = NULL; | |
23a177ef LP |
440 | |
441 | assert(u); | |
442 | assert(name); | |
443 | ||
9e2f7c11 LP |
444 | if (unit_name_is_template(name)) { |
445 | if (!u->meta.instance) | |
446 | return -EINVAL; | |
447 | ||
448 | if (!(s = unit_name_replace_instance(name, u->meta.instance))) | |
449 | return -ENOMEM; | |
450 | ||
451 | name = s; | |
452 | } | |
453 | ||
23a177ef | 454 | if (!(other = manager_get_unit(u->meta.manager, name))) |
9e2f7c11 LP |
455 | r = unit_add_name(u, name); |
456 | else | |
457 | r = unit_merge(u, other); | |
23a177ef | 458 | |
9e2f7c11 LP |
459 | free(s); |
460 | return r; | |
23a177ef LP |
461 | } |
462 | ||
463 | Unit* unit_follow_merge(Unit *u) { | |
464 | assert(u); | |
465 | ||
466 | while (u->meta.load_state == UNIT_MERGED) | |
467 | assert_se(u = u->meta.merged_into); | |
468 | ||
469 | return u; | |
470 | } | |
471 | ||
472 | int unit_add_exec_dependencies(Unit *u, ExecContext *c) { | |
473 | int r; | |
474 | ||
475 | assert(u); | |
476 | assert(c); | |
477 | ||
80876c20 | 478 | if (c->std_output != EXEC_OUTPUT_KERNEL && c->std_output != EXEC_OUTPUT_SYSLOG) |
23a177ef LP |
479 | return 0; |
480 | ||
481 | /* If syslog or kernel logging is requested, make sure our own | |
482 | * logging daemon is run first. */ | |
483 | ||
9e2f7c11 | 484 | if ((r = unit_add_dependency_by_name(u, UNIT_AFTER, SPECIAL_LOGGER_SOCKET, NULL)) < 0) |
23a177ef LP |
485 | return r; |
486 | ||
487 | if (u->meta.manager->running_as != MANAGER_SESSION) | |
9e2f7c11 | 488 | if ((r = unit_add_dependency_by_name(u, UNIT_REQUIRES, SPECIAL_LOGGER_SOCKET, NULL)) < 0) |
23a177ef LP |
489 | return r; |
490 | ||
87f0e418 LP |
491 | return 0; |
492 | } | |
493 | ||
87f0e418 LP |
494 | const char *unit_description(Unit *u) { |
495 | assert(u); | |
496 | ||
497 | if (u->meta.description) | |
498 | return u->meta.description; | |
499 | ||
9e2f7c11 | 500 | return u->meta.id; |
87f0e418 LP |
501 | } |
502 | ||
503 | void unit_dump(Unit *u, FILE *f, const char *prefix) { | |
87f0e418 LP |
504 | char *t; |
505 | UnitDependency d; | |
506 | Iterator i; | |
47be870b LP |
507 | char *p2; |
508 | const char *prefix2; | |
8e274523 | 509 | CGroupBonding *b; |
2fad8195 | 510 | char timestamp1[FORMAT_TIMESTAMP_MAX], timestamp2[FORMAT_TIMESTAMP_MAX]; |
87f0e418 LP |
511 | |
512 | assert(u); | |
9e2f7c11 | 513 | assert(u->meta.type >= 0); |
87f0e418 LP |
514 | |
515 | if (!prefix) | |
516 | prefix = ""; | |
47be870b LP |
517 | p2 = strappend(prefix, "\t"); |
518 | prefix2 = p2 ? p2 : prefix; | |
87f0e418 LP |
519 | |
520 | fprintf(f, | |
521 | "%s→ Unit %s:\n" | |
522 | "%s\tDescription: %s\n" | |
9e2f7c11 | 523 | "%s\tInstance: %s\n" |
87f0e418 | 524 | "%s\tUnit Load State: %s\n" |
2fad8195 LP |
525 | "%s\tUnit Active State: %s\n" |
526 | "%s\tActive Enter Timestamp: %s\n" | |
527 | "%s\tActive Exit Timestamp: %s\n", | |
9e2f7c11 | 528 | prefix, u->meta.id, |
87f0e418 | 529 | prefix, unit_description(u), |
9e2f7c11 | 530 | prefix, strna(u->meta.instance), |
94f04347 | 531 | prefix, unit_load_state_to_string(u->meta.load_state), |
2fad8195 LP |
532 | prefix, unit_active_state_to_string(unit_active_state(u)), |
533 | prefix, strna(format_timestamp(timestamp1, sizeof(timestamp1), u->meta.active_enter_timestamp)), | |
534 | prefix, strna(format_timestamp(timestamp2, sizeof(timestamp2), u->meta.active_exit_timestamp))); | |
0301abf4 | 535 | |
87f0e418 LP |
536 | SET_FOREACH(t, u->meta.names, i) |
537 | fprintf(f, "%s\tName: %s\n", prefix, t); | |
538 | ||
23a177ef LP |
539 | if (u->meta.fragment_path) |
540 | fprintf(f, "%s\tFragment Path: %s\n", prefix, u->meta.fragment_path); | |
541 | ||
87f0e418 LP |
542 | for (d = 0; d < _UNIT_DEPENDENCY_MAX; d++) { |
543 | Unit *other; | |
544 | ||
87f0e418 | 545 | SET_FOREACH(other, u->meta.dependencies[d], i) |
9e2f7c11 | 546 | fprintf(f, "%s\t%s: %s\n", prefix, unit_dependency_to_string(d), other->meta.id); |
87f0e418 LP |
547 | } |
548 | ||
23a177ef | 549 | if (u->meta.load_state == UNIT_LOADED) { |
b0650475 LP |
550 | fprintf(f, |
551 | "%s\tRecursive Stop: %s\n" | |
552 | "%s\tStop When Unneeded: %s\n", | |
553 | prefix, yes_no(u->meta.recursive_stop), | |
554 | prefix, yes_no(u->meta.stop_when_unneeded)); | |
555 | ||
23a177ef LP |
556 | LIST_FOREACH(by_unit, b, u->meta.cgroup_bondings) |
557 | fprintf(f, "%s\tControlGroup: %s:%s\n", | |
558 | prefix, b->controller, b->path); | |
8e274523 | 559 | |
23a177ef LP |
560 | if (UNIT_VTABLE(u)->dump) |
561 | UNIT_VTABLE(u)->dump(u, f, prefix2); | |
b0650475 LP |
562 | |
563 | } else if (u->meta.load_state == UNIT_MERGED) | |
564 | fprintf(f, | |
565 | "%s\tMerged into: %s\n", | |
9e2f7c11 | 566 | prefix, u->meta.merged_into->meta.id); |
87f0e418 LP |
567 | |
568 | if (u->meta.job) | |
569 | job_dump(u->meta.job, f, prefix2); | |
570 | ||
47be870b | 571 | free(p2); |
87f0e418 LP |
572 | } |
573 | ||
574 | /* Common implementation for multiple backends */ | |
e537352b | 575 | int unit_load_fragment_and_dropin(Unit *u) { |
23a177ef LP |
576 | int r; |
577 | ||
578 | assert(u); | |
23a177ef LP |
579 | |
580 | /* Load a .service file */ | |
e537352b | 581 | if ((r = unit_load_fragment(u)) < 0) |
23a177ef LP |
582 | return r; |
583 | ||
e537352b | 584 | if (u->meta.load_state == UNIT_STUB) |
23a177ef LP |
585 | return -ENOENT; |
586 | ||
587 | /* Load drop-in directory data */ | |
588 | if ((r = unit_load_dropin(unit_follow_merge(u))) < 0) | |
589 | return r; | |
590 | ||
591 | return 0; | |
592 | } | |
593 | ||
594 | /* Common implementation for multiple backends */ | |
e537352b | 595 | int unit_load_fragment_and_dropin_optional(Unit *u) { |
23a177ef | 596 | int r; |
87f0e418 LP |
597 | |
598 | assert(u); | |
599 | ||
23a177ef LP |
600 | /* Same as unit_load_fragment_and_dropin(), but whether |
601 | * something can be loaded or not doesn't matter. */ | |
602 | ||
603 | /* Load a .service file */ | |
e537352b | 604 | if ((r = unit_load_fragment(u)) < 0) |
87f0e418 LP |
605 | return r; |
606 | ||
e537352b LP |
607 | if (u->meta.load_state == UNIT_STUB) |
608 | u->meta.load_state = UNIT_LOADED; | |
d46de8a1 | 609 | |
87f0e418 | 610 | /* Load drop-in directory data */ |
23a177ef | 611 | if ((r = unit_load_dropin(unit_follow_merge(u))) < 0) |
87f0e418 LP |
612 | return r; |
613 | ||
23a177ef | 614 | return 0; |
87f0e418 LP |
615 | } |
616 | ||
617 | int unit_load(Unit *u) { | |
618 | int r; | |
619 | ||
620 | assert(u); | |
621 | ||
622 | if (u->meta.in_load_queue) { | |
623 | LIST_REMOVE(Meta, load_queue, u->meta.manager->load_queue, &u->meta); | |
624 | u->meta.in_load_queue = false; | |
625 | } | |
626 | ||
e537352b LP |
627 | if (u->meta.type == _UNIT_TYPE_INVALID) |
628 | return -EINVAL; | |
629 | ||
87f0e418 LP |
630 | if (u->meta.load_state != UNIT_STUB) |
631 | return 0; | |
632 | ||
e537352b LP |
633 | if (UNIT_VTABLE(u)->load) |
634 | if ((r = UNIT_VTABLE(u)->load(u)) < 0) | |
87f0e418 | 635 | goto fail; |
23a177ef | 636 | |
e537352b | 637 | if (u->meta.load_state == UNIT_STUB) { |
23a177ef LP |
638 | r = -ENOENT; |
639 | goto fail; | |
640 | } | |
641 | ||
23a177ef LP |
642 | assert((u->meta.load_state != UNIT_MERGED) == !u->meta.merged_into); |
643 | ||
644 | unit_add_to_dbus_queue(unit_follow_merge(u)); | |
87f0e418 | 645 | |
87f0e418 LP |
646 | return 0; |
647 | ||
648 | fail: | |
649 | u->meta.load_state = UNIT_FAILED; | |
c1e1601e | 650 | unit_add_to_dbus_queue(u); |
23a177ef | 651 | |
9e2f7c11 | 652 | log_error("Failed to load configuration for %s: %s", u->meta.id, strerror(-r)); |
23a177ef | 653 | |
87f0e418 LP |
654 | return r; |
655 | } | |
656 | ||
657 | /* Errors: | |
658 | * -EBADR: This unit type does not support starting. | |
659 | * -EALREADY: Unit is already started. | |
660 | * -EAGAIN: An operation is already in progress. Retry later. | |
661 | */ | |
662 | int unit_start(Unit *u) { | |
663 | UnitActiveState state; | |
664 | ||
665 | assert(u); | |
666 | ||
7898b0cf LP |
667 | /* If this is already (being) started, then this will |
668 | * succeed. Note that this will even succeed if this unit is | |
669 | * not startable by the user. This is relied on to detect when | |
670 | * we need to wait for units and when waiting is finished. */ | |
87f0e418 LP |
671 | state = unit_active_state(u); |
672 | if (UNIT_IS_ACTIVE_OR_RELOADING(state)) | |
673 | return -EALREADY; | |
674 | ||
7898b0cf LP |
675 | /* If it is stopped, but we cannot start it, then fail */ |
676 | if (!UNIT_VTABLE(u)->start) | |
677 | return -EBADR; | |
678 | ||
87f0e418 LP |
679 | /* We don't suppress calls to ->start() here when we are |
680 | * already starting, to allow this request to be used as a | |
681 | * "hurry up" call, for example when the unit is in some "auto | |
682 | * restart" state where it waits for a holdoff timer to elapse | |
683 | * before it will start again. */ | |
684 | ||
c1e1601e | 685 | unit_add_to_dbus_queue(u); |
87f0e418 LP |
686 | return UNIT_VTABLE(u)->start(u); |
687 | } | |
688 | ||
689 | bool unit_can_start(Unit *u) { | |
690 | assert(u); | |
691 | ||
692 | return !!UNIT_VTABLE(u)->start; | |
693 | } | |
694 | ||
695 | /* Errors: | |
696 | * -EBADR: This unit type does not support stopping. | |
697 | * -EALREADY: Unit is already stopped. | |
698 | * -EAGAIN: An operation is already in progress. Retry later. | |
699 | */ | |
700 | int unit_stop(Unit *u) { | |
701 | UnitActiveState state; | |
702 | ||
703 | assert(u); | |
704 | ||
87f0e418 LP |
705 | state = unit_active_state(u); |
706 | if (state == UNIT_INACTIVE) | |
707 | return -EALREADY; | |
708 | ||
7898b0cf LP |
709 | if (!UNIT_VTABLE(u)->stop) |
710 | return -EBADR; | |
711 | ||
c1e1601e | 712 | unit_add_to_dbus_queue(u); |
87f0e418 LP |
713 | return UNIT_VTABLE(u)->stop(u); |
714 | } | |
715 | ||
716 | /* Errors: | |
717 | * -EBADR: This unit type does not support reloading. | |
718 | * -ENOEXEC: Unit is not started. | |
719 | * -EAGAIN: An operation is already in progress. Retry later. | |
720 | */ | |
721 | int unit_reload(Unit *u) { | |
722 | UnitActiveState state; | |
723 | ||
724 | assert(u); | |
725 | ||
726 | if (!unit_can_reload(u)) | |
727 | return -EBADR; | |
728 | ||
729 | state = unit_active_state(u); | |
730 | if (unit_active_state(u) == UNIT_ACTIVE_RELOADING) | |
731 | return -EALREADY; | |
732 | ||
733 | if (unit_active_state(u) != UNIT_ACTIVE) | |
734 | return -ENOEXEC; | |
735 | ||
c1e1601e | 736 | unit_add_to_dbus_queue(u); |
87f0e418 LP |
737 | return UNIT_VTABLE(u)->reload(u); |
738 | } | |
739 | ||
740 | bool unit_can_reload(Unit *u) { | |
741 | assert(u); | |
742 | ||
743 | if (!UNIT_VTABLE(u)->reload) | |
744 | return false; | |
745 | ||
746 | if (!UNIT_VTABLE(u)->can_reload) | |
747 | return true; | |
748 | ||
749 | return UNIT_VTABLE(u)->can_reload(u); | |
750 | } | |
751 | ||
f3bff0eb LP |
752 | static void unit_check_uneeded(Unit *u) { |
753 | Iterator i; | |
754 | Unit *other; | |
755 | ||
756 | assert(u); | |
757 | ||
758 | /* If this service shall be shut down when unneeded then do | |
759 | * so. */ | |
760 | ||
761 | if (!u->meta.stop_when_unneeded) | |
762 | return; | |
763 | ||
764 | if (!UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(u))) | |
765 | return; | |
766 | ||
767 | SET_FOREACH(other, u->meta.dependencies[UNIT_REQUIRED_BY], i) | |
768 | if (!UNIT_IS_INACTIVE_OR_DEACTIVATING(unit_active_state(other))) | |
769 | return; | |
770 | ||
9e2f7c11 | 771 | SET_FOREACH(other, u->meta.dependencies[UNIT_REQUIRED_BY_OVERRIDABLE], i) |
f3bff0eb LP |
772 | if (!UNIT_IS_INACTIVE_OR_DEACTIVATING(unit_active_state(other))) |
773 | return; | |
774 | ||
775 | SET_FOREACH(other, u->meta.dependencies[UNIT_WANTED_BY], i) | |
776 | if (!UNIT_IS_INACTIVE_OR_DEACTIVATING(unit_active_state(other))) | |
777 | return; | |
778 | ||
9e2f7c11 | 779 | log_debug("Service %s is not needed anymore. Stopping.", u->meta.id); |
f3bff0eb LP |
780 | |
781 | /* Ok, nobody needs us anymore. Sniff. Then let's commit suicide */ | |
782 | manager_add_job(u->meta.manager, JOB_STOP, u, JOB_FAIL, true, NULL); | |
783 | } | |
784 | ||
87f0e418 LP |
785 | static void retroactively_start_dependencies(Unit *u) { |
786 | Iterator i; | |
787 | Unit *other; | |
788 | ||
789 | assert(u); | |
790 | assert(UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(u))); | |
791 | ||
792 | SET_FOREACH(other, u->meta.dependencies[UNIT_REQUIRES], i) | |
793 | if (!UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(other))) | |
794 | manager_add_job(u->meta.manager, JOB_START, other, JOB_REPLACE, true, NULL); | |
795 | ||
9e2f7c11 | 796 | SET_FOREACH(other, u->meta.dependencies[UNIT_REQUIRES_OVERRIDABLE], i) |
87f0e418 LP |
797 | if (!UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(other))) |
798 | manager_add_job(u->meta.manager, JOB_START, other, JOB_FAIL, false, NULL); | |
799 | ||
800 | SET_FOREACH(other, u->meta.dependencies[UNIT_REQUISITE], i) | |
801 | if (!UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(other))) | |
802 | manager_add_job(u->meta.manager, JOB_START, other, JOB_REPLACE, true, NULL); | |
803 | ||
804 | SET_FOREACH(other, u->meta.dependencies[UNIT_WANTS], i) | |
805 | if (!UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(other))) | |
806 | manager_add_job(u->meta.manager, JOB_START, other, JOB_FAIL, false, NULL); | |
807 | ||
808 | SET_FOREACH(other, u->meta.dependencies[UNIT_CONFLICTS], i) | |
809 | if (!UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(other))) | |
810 | manager_add_job(u->meta.manager, JOB_STOP, other, JOB_REPLACE, true, NULL); | |
811 | } | |
812 | ||
813 | static void retroactively_stop_dependencies(Unit *u) { | |
814 | Iterator i; | |
815 | Unit *other; | |
816 | ||
817 | assert(u); | |
818 | assert(UNIT_IS_INACTIVE_OR_DEACTIVATING(unit_active_state(u))); | |
819 | ||
f3bff0eb LP |
820 | if (u->meta.recursive_stop) { |
821 | /* Pull down units need us recursively if enabled */ | |
822 | SET_FOREACH(other, u->meta.dependencies[UNIT_REQUIRED_BY], i) | |
823 | if (!UNIT_IS_INACTIVE_OR_DEACTIVATING(unit_active_state(other))) | |
824 | manager_add_job(u->meta.manager, JOB_STOP, other, JOB_REPLACE, true, NULL); | |
825 | } | |
826 | ||
827 | /* Garbage collect services that might not be needed anymore, if enabled */ | |
828 | SET_FOREACH(other, u->meta.dependencies[UNIT_REQUIRES], i) | |
87f0e418 | 829 | if (!UNIT_IS_INACTIVE_OR_DEACTIVATING(unit_active_state(other))) |
f3bff0eb | 830 | unit_check_uneeded(other); |
9e2f7c11 | 831 | SET_FOREACH(other, u->meta.dependencies[UNIT_REQUIRES_OVERRIDABLE], i) |
f3bff0eb LP |
832 | if (!UNIT_IS_INACTIVE_OR_DEACTIVATING(unit_active_state(other))) |
833 | unit_check_uneeded(other); | |
834 | SET_FOREACH(other, u->meta.dependencies[UNIT_WANTS], i) | |
835 | if (!UNIT_IS_INACTIVE_OR_DEACTIVATING(unit_active_state(other))) | |
836 | unit_check_uneeded(other); | |
837 | SET_FOREACH(other, u->meta.dependencies[UNIT_REQUISITE], i) | |
838 | if (!UNIT_IS_INACTIVE_OR_DEACTIVATING(unit_active_state(other))) | |
839 | unit_check_uneeded(other); | |
9e2f7c11 | 840 | SET_FOREACH(other, u->meta.dependencies[UNIT_REQUISITE_OVERRIDABLE], i) |
f3bff0eb LP |
841 | if (!UNIT_IS_INACTIVE_OR_DEACTIVATING(unit_active_state(other))) |
842 | unit_check_uneeded(other); | |
87f0e418 LP |
843 | } |
844 | ||
845 | void unit_notify(Unit *u, UnitActiveState os, UnitActiveState ns) { | |
a096ed36 LP |
846 | bool unexpected = false; |
847 | ||
87f0e418 LP |
848 | assert(u); |
849 | assert(os < _UNIT_ACTIVE_STATE_MAX); | |
850 | assert(ns < _UNIT_ACTIVE_STATE_MAX); | |
87f0e418 | 851 | |
8e471ccd LP |
852 | /* Note that this is called for all low-level state changes, |
853 | * even if they might map to the same high-level | |
854 | * UnitActiveState! That means that ns == os is OK an expected | |
855 | * behaviour here. For example: if a mount point is remounted | |
856 | * this function will be called too and the utmp code below | |
857 | * relies on that! */ | |
87f0e418 LP |
858 | |
859 | if (!UNIT_IS_ACTIVE_OR_RELOADING(os) && UNIT_IS_ACTIVE_OR_RELOADING(ns)) | |
860 | u->meta.active_enter_timestamp = now(CLOCK_REALTIME); | |
861 | else if (UNIT_IS_ACTIVE_OR_RELOADING(os) && !UNIT_IS_ACTIVE_OR_RELOADING(ns)) | |
862 | u->meta.active_exit_timestamp = now(CLOCK_REALTIME); | |
863 | ||
864 | if (u->meta.job) { | |
865 | ||
866 | if (u->meta.job->state == JOB_WAITING) | |
867 | ||
868 | /* So we reached a different state for this | |
869 | * job. Let's see if we can run it now if it | |
870 | * failed previously due to EAGAIN. */ | |
c1e1601e | 871 | job_add_to_run_queue(u->meta.job); |
87f0e418 LP |
872 | |
873 | else { | |
874 | assert(u->meta.job->state == JOB_RUNNING); | |
875 | ||
f50e0a01 | 876 | /* Let's check whether this state change |
87f0e418 LP |
877 | * constitutes a finished job, or maybe |
878 | * cotradicts a running job and hence needs to | |
879 | * invalidate jobs. */ | |
880 | ||
881 | switch (u->meta.job->type) { | |
882 | ||
883 | case JOB_START: | |
884 | case JOB_VERIFY_ACTIVE: | |
885 | ||
a096ed36 | 886 | if (UNIT_IS_ACTIVE_OR_RELOADING(ns)) |
87f0e418 | 887 | job_finish_and_invalidate(u->meta.job, true); |
a096ed36 LP |
888 | else if (ns != UNIT_ACTIVATING) { |
889 | unexpected = true; | |
87f0e418 | 890 | job_finish_and_invalidate(u->meta.job, false); |
a096ed36 | 891 | } |
87f0e418 LP |
892 | |
893 | break; | |
894 | ||
895 | case JOB_RELOAD: | |
896 | case JOB_RELOAD_OR_START: | |
897 | ||
a096ed36 | 898 | if (ns == UNIT_ACTIVE) |
87f0e418 | 899 | job_finish_and_invalidate(u->meta.job, true); |
a096ed36 LP |
900 | else if (ns != UNIT_ACTIVATING && ns != UNIT_ACTIVE_RELOADING) { |
901 | unexpected = true; | |
87f0e418 | 902 | job_finish_and_invalidate(u->meta.job, false); |
a096ed36 | 903 | } |
87f0e418 LP |
904 | |
905 | break; | |
906 | ||
907 | case JOB_STOP: | |
908 | case JOB_RESTART: | |
909 | case JOB_TRY_RESTART: | |
910 | ||
a096ed36 | 911 | if (ns == UNIT_INACTIVE) |
87f0e418 | 912 | job_finish_and_invalidate(u->meta.job, true); |
a096ed36 LP |
913 | else if (ns != UNIT_DEACTIVATING) { |
914 | unexpected = true; | |
87f0e418 | 915 | job_finish_and_invalidate(u->meta.job, false); |
a096ed36 | 916 | } |
87f0e418 LP |
917 | |
918 | break; | |
919 | ||
920 | default: | |
921 | assert_not_reached("Job type unknown"); | |
922 | } | |
923 | } | |
924 | } | |
925 | ||
926 | /* If this state change happened without being requested by a | |
927 | * job, then let's retroactively start or stop dependencies */ | |
928 | ||
a096ed36 LP |
929 | if (unexpected) { |
930 | if (UNIT_IS_INACTIVE_OR_DEACTIVATING(os) && UNIT_IS_ACTIVE_OR_ACTIVATING(ns)) | |
931 | retroactively_start_dependencies(u); | |
932 | else if (UNIT_IS_ACTIVE_OR_ACTIVATING(os) && UNIT_IS_INACTIVE_OR_DEACTIVATING(ns)) | |
933 | retroactively_stop_dependencies(u); | |
934 | } | |
f3bff0eb | 935 | |
e537352b LP |
936 | /* Some names are special */ |
937 | if (UNIT_IS_ACTIVE_OR_RELOADING(ns)) { | |
f278026d | 938 | if (unit_has_name(u, SPECIAL_DBUS_SERVICE)) { |
e537352b LP |
939 | /* The bus just might have become available, |
940 | * hence try to connect to it, if we aren't | |
941 | * yet connected. */ | |
f278026d LP |
942 | bus_init_system(u->meta.manager); |
943 | bus_init_api(u->meta.manager); | |
944 | } | |
945 | ||
e537352b LP |
946 | if (unit_has_name(u, SPECIAL_SYSLOG_SERVICE)) |
947 | /* The syslog daemon just might have become | |
948 | * available, hence try to connect to it, if | |
949 | * we aren't yet connected. */ | |
2882c7ed | 950 | log_open_syslog(); |
f278026d | 951 | |
e537352b LP |
952 | if (u->meta.type == UNIT_MOUNT) |
953 | /* Another directory became available, let's | |
954 | * check if that is enough to write our utmp | |
955 | * entry. */ | |
956 | manager_write_utmp_reboot(u->meta.manager); | |
957 | ||
958 | if (u->meta.type == UNIT_TARGET) | |
959 | /* A target got activated, maybe this is a runlevel? */ | |
960 | manager_write_utmp_runlevel(u->meta.manager, u); | |
961 | ||
962 | } else if (!UNIT_IS_ACTIVE_OR_RELOADING(ns)) { | |
f278026d LP |
963 | |
964 | if (unit_has_name(u, SPECIAL_SYSLOG_SERVICE)) | |
e537352b LP |
965 | /* The syslog daemon might just have |
966 | * terminated, hence try to disconnect from | |
967 | * it. */ | |
2882c7ed | 968 | log_close_syslog(); |
f278026d LP |
969 | |
970 | /* We don't care about D-Bus here, since we'll get an | |
971 | * asynchronous notification for it anyway. */ | |
972 | } | |
973 | ||
f3bff0eb LP |
974 | /* Maybe we finished startup and are now ready for being |
975 | * stopped because unneeded? */ | |
976 | unit_check_uneeded(u); | |
c1e1601e LP |
977 | |
978 | unit_add_to_dbus_queue(u); | |
87f0e418 LP |
979 | } |
980 | ||
acbb0225 | 981 | int unit_watch_fd(Unit *u, int fd, uint32_t events, Watch *w) { |
87f0e418 LP |
982 | struct epoll_event ev; |
983 | ||
984 | assert(u); | |
985 | assert(fd >= 0); | |
acbb0225 | 986 | assert(w); |
ea430986 | 987 | assert(w->type == WATCH_INVALID || (w->type == WATCH_FD && w->fd == fd && w->data.unit == u)); |
87f0e418 LP |
988 | |
989 | zero(ev); | |
acbb0225 | 990 | ev.data.ptr = w; |
87f0e418 LP |
991 | ev.events = events; |
992 | ||
acbb0225 LP |
993 | if (epoll_ctl(u->meta.manager->epoll_fd, |
994 | w->type == WATCH_INVALID ? EPOLL_CTL_ADD : EPOLL_CTL_MOD, | |
995 | fd, | |
996 | &ev) < 0) | |
997 | return -errno; | |
87f0e418 | 998 | |
acbb0225 LP |
999 | w->fd = fd; |
1000 | w->type = WATCH_FD; | |
ea430986 | 1001 | w->data.unit = u; |
87f0e418 | 1002 | |
acbb0225 | 1003 | return 0; |
87f0e418 LP |
1004 | } |
1005 | ||
acbb0225 | 1006 | void unit_unwatch_fd(Unit *u, Watch *w) { |
87f0e418 | 1007 | assert(u); |
acbb0225 | 1008 | assert(w); |
87f0e418 | 1009 | |
acbb0225 LP |
1010 | if (w->type == WATCH_INVALID) |
1011 | return; | |
1012 | ||
ea430986 LP |
1013 | assert(w->type == WATCH_FD); |
1014 | assert(w->data.unit == u); | |
acbb0225 LP |
1015 | assert_se(epoll_ctl(u->meta.manager->epoll_fd, EPOLL_CTL_DEL, w->fd, NULL) >= 0); |
1016 | ||
1017 | w->fd = -1; | |
1018 | w->type = WATCH_INVALID; | |
ea430986 | 1019 | w->data.unit = NULL; |
87f0e418 LP |
1020 | } |
1021 | ||
1022 | int unit_watch_pid(Unit *u, pid_t pid) { | |
1023 | assert(u); | |
1024 | assert(pid >= 1); | |
1025 | ||
1026 | return hashmap_put(u->meta.manager->watch_pids, UINT32_TO_PTR(pid), u); | |
1027 | } | |
1028 | ||
1029 | void unit_unwatch_pid(Unit *u, pid_t pid) { | |
1030 | assert(u); | |
1031 | assert(pid >= 1); | |
1032 | ||
1033 | hashmap_remove(u->meta.manager->watch_pids, UINT32_TO_PTR(pid)); | |
1034 | } | |
1035 | ||
acbb0225 | 1036 | int unit_watch_timer(Unit *u, usec_t delay, Watch *w) { |
87f0e418 | 1037 | struct itimerspec its; |
acbb0225 | 1038 | int flags, fd; |
87f0e418 LP |
1039 | bool ours; |
1040 | ||
1041 | assert(u); | |
acbb0225 | 1042 | assert(w); |
ea430986 | 1043 | assert(w->type == WATCH_INVALID || (w->type == WATCH_TIMER && w->data.unit == u)); |
87f0e418 LP |
1044 | |
1045 | /* This will try to reuse the old timer if there is one */ | |
1046 | ||
acbb0225 | 1047 | if (w->type == WATCH_TIMER) { |
87f0e418 | 1048 | ours = false; |
acbb0225 | 1049 | fd = w->fd; |
87f0e418 LP |
1050 | } else { |
1051 | ours = true; | |
87f0e418 LP |
1052 | if ((fd = timerfd_create(CLOCK_MONOTONIC, TFD_NONBLOCK|TFD_CLOEXEC)) < 0) |
1053 | return -errno; | |
1054 | } | |
1055 | ||
1056 | zero(its); | |
1057 | ||
1058 | if (delay <= 0) { | |
1059 | /* Set absolute time in the past, but not 0, since we | |
1060 | * don't want to disarm the timer */ | |
1061 | its.it_value.tv_sec = 0; | |
1062 | its.it_value.tv_nsec = 1; | |
1063 | ||
1064 | flags = TFD_TIMER_ABSTIME; | |
1065 | } else { | |
1066 | timespec_store(&its.it_value, delay); | |
1067 | flags = 0; | |
1068 | } | |
1069 | ||
1070 | /* This will also flush the elapse counter */ | |
1071 | if (timerfd_settime(fd, flags, &its, NULL) < 0) | |
1072 | goto fail; | |
1073 | ||
acbb0225 LP |
1074 | if (w->type == WATCH_INVALID) { |
1075 | struct epoll_event ev; | |
87f0e418 | 1076 | |
acbb0225 LP |
1077 | zero(ev); |
1078 | ev.data.ptr = w; | |
f94ea366 | 1079 | ev.events = EPOLLIN; |
acbb0225 LP |
1080 | |
1081 | if (epoll_ctl(u->meta.manager->epoll_fd, EPOLL_CTL_ADD, fd, &ev) < 0) | |
1082 | goto fail; | |
1083 | } | |
1084 | ||
1085 | w->fd = fd; | |
1086 | w->type = WATCH_TIMER; | |
ea430986 | 1087 | w->data.unit = u; |
87f0e418 | 1088 | |
87f0e418 LP |
1089 | return 0; |
1090 | ||
1091 | fail: | |
1092 | if (ours) | |
ea430986 | 1093 | close_nointr_nofail(fd); |
87f0e418 LP |
1094 | |
1095 | return -errno; | |
1096 | } | |
1097 | ||
acbb0225 | 1098 | void unit_unwatch_timer(Unit *u, Watch *w) { |
87f0e418 | 1099 | assert(u); |
acbb0225 | 1100 | assert(w); |
87f0e418 | 1101 | |
acbb0225 | 1102 | if (w->type == WATCH_INVALID) |
87f0e418 LP |
1103 | return; |
1104 | ||
ea430986 | 1105 | assert(w->type == WATCH_TIMER && w->data.unit == u); |
acbb0225 LP |
1106 | |
1107 | assert_se(epoll_ctl(u->meta.manager->epoll_fd, EPOLL_CTL_DEL, w->fd, NULL) >= 0); | |
1108 | assert_se(close_nointr(w->fd) == 0); | |
1109 | ||
1110 | w->fd = -1; | |
1111 | w->type = WATCH_INVALID; | |
ea430986 | 1112 | w->data.unit = NULL; |
87f0e418 LP |
1113 | } |
1114 | ||
1115 | bool unit_job_is_applicable(Unit *u, JobType j) { | |
1116 | assert(u); | |
1117 | assert(j >= 0 && j < _JOB_TYPE_MAX); | |
1118 | ||
1119 | switch (j) { | |
1120 | ||
1121 | case JOB_VERIFY_ACTIVE: | |
1122 | case JOB_START: | |
1123 | return true; | |
1124 | ||
1125 | case JOB_STOP: | |
1126 | case JOB_RESTART: | |
1127 | case JOB_TRY_RESTART: | |
1128 | return unit_can_start(u); | |
1129 | ||
1130 | case JOB_RELOAD: | |
1131 | return unit_can_reload(u); | |
1132 | ||
1133 | case JOB_RELOAD_OR_START: | |
1134 | return unit_can_reload(u) && unit_can_start(u); | |
1135 | ||
1136 | default: | |
1137 | assert_not_reached("Invalid job type"); | |
1138 | } | |
1139 | } | |
1140 | ||
1141 | int unit_add_dependency(Unit *u, UnitDependency d, Unit *other) { | |
1142 | ||
1143 | static const UnitDependency inverse_table[_UNIT_DEPENDENCY_MAX] = { | |
1144 | [UNIT_REQUIRES] = UNIT_REQUIRED_BY, | |
9e2f7c11 | 1145 | [UNIT_REQUIRES_OVERRIDABLE] = UNIT_REQUIRED_BY_OVERRIDABLE, |
87f0e418 LP |
1146 | [UNIT_WANTS] = UNIT_WANTED_BY, |
1147 | [UNIT_REQUISITE] = UNIT_REQUIRED_BY, | |
9e2f7c11 | 1148 | [UNIT_REQUISITE_OVERRIDABLE] = UNIT_REQUIRED_BY_OVERRIDABLE, |
87f0e418 | 1149 | [UNIT_REQUIRED_BY] = _UNIT_DEPENDENCY_INVALID, |
9e2f7c11 | 1150 | [UNIT_REQUIRED_BY_OVERRIDABLE] = _UNIT_DEPENDENCY_INVALID, |
87f0e418 LP |
1151 | [UNIT_WANTED_BY] = _UNIT_DEPENDENCY_INVALID, |
1152 | [UNIT_CONFLICTS] = UNIT_CONFLICTS, | |
1153 | [UNIT_BEFORE] = UNIT_AFTER, | |
1154 | [UNIT_AFTER] = UNIT_BEFORE | |
1155 | }; | |
1156 | int r; | |
1157 | ||
1158 | assert(u); | |
1159 | assert(d >= 0 && d < _UNIT_DEPENDENCY_MAX); | |
1160 | assert(inverse_table[d] != _UNIT_DEPENDENCY_INVALID); | |
1161 | assert(other); | |
1162 | ||
1163 | /* We won't allow dependencies on ourselves. We will not | |
1164 | * consider them an error however. */ | |
1165 | if (u == other) | |
1166 | return 0; | |
1167 | ||
9e2f7c11 LP |
1168 | if (UNIT_VTABLE(u)->no_requires && |
1169 | (d == UNIT_REQUIRES || | |
1170 | d == UNIT_REQUIRES_OVERRIDABLE || | |
1171 | d == UNIT_REQUISITE || | |
1172 | d == UNIT_REQUISITE_OVERRIDABLE)) { | |
1173 | return -EINVAL; | |
1174 | } | |
1175 | ||
87f0e418 LP |
1176 | if ((r = set_ensure_allocated(&u->meta.dependencies[d], trivial_hash_func, trivial_compare_func)) < 0) |
1177 | return r; | |
1178 | ||
1179 | if ((r = set_ensure_allocated(&other->meta.dependencies[inverse_table[d]], trivial_hash_func, trivial_compare_func)) < 0) | |
1180 | return r; | |
1181 | ||
1182 | if ((r = set_put(u->meta.dependencies[d], other)) < 0) | |
1183 | return r; | |
1184 | ||
1185 | if ((r = set_put(other->meta.dependencies[inverse_table[d]], u)) < 0) { | |
1186 | set_remove(u->meta.dependencies[d], other); | |
1187 | return r; | |
1188 | } | |
1189 | ||
c1e1601e | 1190 | unit_add_to_dbus_queue(u); |
87f0e418 LP |
1191 | return 0; |
1192 | } | |
0301abf4 | 1193 | |
9e2f7c11 LP |
1194 | static const char *resolve_template(Unit *u, const char *name, const char*path, char **p) { |
1195 | char *s; | |
1196 | ||
1197 | assert(u); | |
1198 | assert(name || path); | |
1199 | ||
1200 | if (!name) | |
1201 | name = file_name_from_path(path); | |
1202 | ||
1203 | if (!unit_name_is_template(name)) { | |
1204 | *p = NULL; | |
1205 | return name; | |
1206 | } | |
1207 | ||
1208 | if (u->meta.instance) | |
1209 | s = unit_name_replace_instance(name, u->meta.instance); | |
1210 | else { | |
1211 | char *i; | |
1212 | ||
1213 | if (!(i = unit_name_to_prefix(u->meta.id))) | |
1214 | return NULL; | |
1215 | ||
1216 | s = unit_name_replace_instance(name, i); | |
1217 | free(i); | |
1218 | } | |
1219 | ||
1220 | if (!s) | |
1221 | return NULL; | |
1222 | ||
1223 | *p = s; | |
1224 | return s; | |
1225 | } | |
1226 | ||
1227 | int unit_add_dependency_by_name(Unit *u, UnitDependency d, const char *name, const char *path) { | |
09b6b09f LP |
1228 | Unit *other; |
1229 | int r; | |
9e2f7c11 | 1230 | char *s; |
09b6b09f | 1231 | |
9e2f7c11 LP |
1232 | assert(u); |
1233 | assert(name || path); | |
09b6b09f | 1234 | |
9e2f7c11 LP |
1235 | if (!(name = resolve_template(u, name, path, &s))) |
1236 | return -ENOMEM; | |
09b6b09f | 1237 | |
9e2f7c11 LP |
1238 | if ((r = manager_load_unit(u->meta.manager, name, path, &other)) < 0) |
1239 | goto finish; | |
1240 | ||
1241 | r = unit_add_dependency(u, d, other); | |
1242 | ||
1243 | finish: | |
1244 | free(s); | |
1245 | return r; | |
09b6b09f LP |
1246 | } |
1247 | ||
9e2f7c11 | 1248 | int unit_add_dependency_by_name_inverse(Unit *u, UnitDependency d, const char *name, const char *path) { |
bd77d0fc LP |
1249 | Unit *other; |
1250 | int r; | |
9e2f7c11 | 1251 | char *s; |
bd77d0fc | 1252 | |
9e2f7c11 LP |
1253 | assert(u); |
1254 | assert(name || path); | |
bd77d0fc | 1255 | |
9e2f7c11 LP |
1256 | if (!(name = resolve_template(u, name, path, &s))) |
1257 | return -ENOMEM; | |
bd77d0fc | 1258 | |
9e2f7c11 LP |
1259 | if ((r = manager_load_unit(u->meta.manager, name, path, &other)) < 0) |
1260 | goto finish; | |
1261 | ||
1262 | r = unit_add_dependency(other, d, u); | |
1263 | ||
1264 | finish: | |
1265 | free(s); | |
1266 | return r; | |
bd77d0fc LP |
1267 | } |
1268 | ||
0301abf4 LP |
1269 | int set_unit_path(const char *p) { |
1270 | char *cwd, *c; | |
1271 | int r; | |
1272 | ||
1273 | /* This is mostly for debug purposes */ | |
1274 | ||
1275 | if (path_is_absolute(p)) { | |
1276 | if (!(c = strdup(p))) | |
1277 | return -ENOMEM; | |
1278 | } else { | |
1279 | if (!(cwd = get_current_dir_name())) | |
1280 | return -errno; | |
1281 | ||
1282 | r = asprintf(&c, "%s/%s", cwd, p); | |
1283 | free(cwd); | |
1284 | ||
1285 | if (r < 0) | |
1286 | return -ENOMEM; | |
1287 | } | |
1288 | ||
036643a2 | 1289 | if (setenv("SYSTEMD_UNIT_PATH", c, 0) < 0) { |
0301abf4 LP |
1290 | r = -errno; |
1291 | free(c); | |
1292 | return r; | |
1293 | } | |
1294 | ||
1295 | return 0; | |
1296 | } | |
88066b3a | 1297 | |
ea430986 LP |
1298 | char *unit_dbus_path(Unit *u) { |
1299 | char *p, *e; | |
1300 | ||
1301 | assert(u); | |
1302 | ||
9e2f7c11 | 1303 | if (!(e = bus_path_escape(u->meta.id))) |
ea430986 LP |
1304 | return NULL; |
1305 | ||
1306 | if (asprintf(&p, "/org/freedesktop/systemd1/unit/%s", e) < 0) { | |
1307 | free(e); | |
1308 | return NULL; | |
1309 | } | |
1310 | ||
1311 | free(e); | |
1312 | return p; | |
1313 | } | |
1314 | ||
8e274523 LP |
1315 | int unit_add_cgroup(Unit *u, CGroupBonding *b) { |
1316 | CGroupBonding *l; | |
1317 | int r; | |
1318 | ||
1319 | assert(u); | |
1320 | assert(b); | |
1321 | assert(b->path); | |
1322 | ||
1323 | /* Ensure this hasn't been added yet */ | |
1324 | assert(!b->unit); | |
1325 | ||
1326 | l = hashmap_get(u->meta.manager->cgroup_bondings, b->path); | |
1327 | LIST_PREPEND(CGroupBonding, by_path, l, b); | |
1328 | ||
1329 | if ((r = hashmap_replace(u->meta.manager->cgroup_bondings, b->path, l)) < 0) { | |
1330 | LIST_REMOVE(CGroupBonding, by_path, l, b); | |
1331 | return r; | |
1332 | } | |
1333 | ||
1334 | LIST_PREPEND(CGroupBonding, by_unit, u->meta.cgroup_bondings, b); | |
1335 | b->unit = u; | |
1336 | ||
1337 | return 0; | |
1338 | } | |
1339 | ||
013b87c0 LP |
1340 | static char *default_cgroup_path(Unit *u) { |
1341 | char *p; | |
1342 | ||
1343 | assert(u); | |
1344 | ||
9e2f7c11 | 1345 | if (asprintf(&p, "%s/%s", u->meta.manager->cgroup_hierarchy, u->meta.id) < 0) |
013b87c0 LP |
1346 | return NULL; |
1347 | ||
1348 | return p; | |
1349 | } | |
1350 | ||
8e274523 LP |
1351 | int unit_add_cgroup_from_text(Unit *u, const char *name) { |
1352 | size_t n; | |
013b87c0 LP |
1353 | char *controller = NULL, *path = NULL; |
1354 | CGroupBonding *b = NULL; | |
8e274523 LP |
1355 | int r; |
1356 | ||
1357 | assert(u); | |
1358 | assert(name); | |
1359 | ||
1360 | /* Detect controller name */ | |
013b87c0 | 1361 | n = strcspn(name, ":"); |
8e274523 | 1362 | |
013b87c0 LP |
1363 | if (name[n] == 0 || |
1364 | (name[n] == ':' && name[n+1] == 0)) { | |
8e274523 | 1365 | |
013b87c0 | 1366 | /* Only controller name, no path? */ |
8e274523 | 1367 | |
013b87c0 LP |
1368 | if (!(path = default_cgroup_path(u))) |
1369 | return -ENOMEM; | |
8e274523 | 1370 | |
013b87c0 LP |
1371 | } else { |
1372 | const char *p; | |
8e274523 | 1373 | |
013b87c0 LP |
1374 | /* Controller name, and path. */ |
1375 | p = name+n+1; | |
8e274523 | 1376 | |
013b87c0 LP |
1377 | if (!path_is_absolute(p)) |
1378 | return -EINVAL; | |
1379 | ||
1380 | if (!(path = strdup(p))) | |
1381 | return -ENOMEM; | |
8e274523 LP |
1382 | } |
1383 | ||
013b87c0 LP |
1384 | if (n > 0) |
1385 | controller = strndup(name, n); | |
1386 | else | |
1387 | controller = strdup(u->meta.manager->cgroup_controller); | |
1388 | ||
1389 | if (!controller) { | |
1390 | r = -ENOMEM; | |
1391 | goto fail; | |
8e274523 LP |
1392 | } |
1393 | ||
013b87c0 LP |
1394 | if (cgroup_bonding_find_list(u->meta.cgroup_bondings, controller)) { |
1395 | r = -EEXIST; | |
1396 | goto fail; | |
1397 | } | |
8e274523 | 1398 | |
013b87c0 | 1399 | if (!(b = new0(CGroupBonding, 1))) { |
8e274523 LP |
1400 | r = -ENOMEM; |
1401 | goto fail; | |
1402 | } | |
1403 | ||
013b87c0 LP |
1404 | b->controller = controller; |
1405 | b->path = path; | |
8e274523 LP |
1406 | b->only_us = false; |
1407 | b->clean_up = false; | |
1408 | ||
1409 | if ((r = unit_add_cgroup(u, b)) < 0) | |
1410 | goto fail; | |
1411 | ||
1412 | return 0; | |
1413 | ||
1414 | fail: | |
013b87c0 LP |
1415 | free(path); |
1416 | free(controller); | |
8e274523 LP |
1417 | free(b); |
1418 | ||
1419 | return r; | |
1420 | } | |
1421 | ||
1422 | int unit_add_default_cgroup(Unit *u) { | |
1423 | CGroupBonding *b; | |
1424 | int r = -ENOMEM; | |
1425 | ||
1426 | assert(u); | |
1427 | ||
1428 | /* Adds in the default cgroup data, if it wasn't specified yet */ | |
1429 | ||
1430 | if (unit_get_default_cgroup(u)) | |
1431 | return 0; | |
1432 | ||
1433 | if (!(b = new0(CGroupBonding, 1))) | |
1434 | return -ENOMEM; | |
1435 | ||
1436 | if (!(b->controller = strdup(u->meta.manager->cgroup_controller))) | |
1437 | goto fail; | |
1438 | ||
013b87c0 | 1439 | if (!(b->path = default_cgroup_path(u))) |
8e274523 LP |
1440 | goto fail; |
1441 | ||
1442 | b->clean_up = true; | |
1443 | b->only_us = true; | |
1444 | ||
1445 | if ((r = unit_add_cgroup(u, b)) < 0) | |
1446 | goto fail; | |
1447 | ||
1448 | return 0; | |
1449 | ||
1450 | fail: | |
1451 | free(b->path); | |
1452 | free(b->controller); | |
1453 | free(b); | |
1454 | ||
1455 | return r; | |
1456 | } | |
1457 | ||
1458 | CGroupBonding* unit_get_default_cgroup(Unit *u) { | |
1459 | assert(u); | |
1460 | ||
1461 | return cgroup_bonding_find_list(u->meta.cgroup_bondings, u->meta.manager->cgroup_controller); | |
1462 | } | |
1463 | ||
f6ff8c29 LP |
1464 | int unit_load_related_unit(Unit *u, const char *type, Unit **_found) { |
1465 | char *t; | |
1466 | int r; | |
1467 | ||
1468 | assert(u); | |
1469 | assert(type); | |
1470 | assert(_found); | |
1471 | ||
9e2f7c11 | 1472 | if (!(t = unit_name_change_suffix(u->meta.id, type))) |
f6ff8c29 LP |
1473 | return -ENOMEM; |
1474 | ||
1475 | assert(!unit_has_name(u, t)); | |
1476 | ||
9e2f7c11 | 1477 | r = manager_load_unit(u->meta.manager, t, NULL, _found); |
f6ff8c29 LP |
1478 | free(t); |
1479 | ||
9e2f7c11 | 1480 | assert(r < 0 || *_found != u); |
f6ff8c29 LP |
1481 | |
1482 | return r; | |
1483 | } | |
1484 | ||
9e2f7c11 LP |
1485 | static char *specifier_prefix_and_instance(char specifier, void *data, void *userdata) { |
1486 | Unit *u = userdata; | |
1487 | assert(u); | |
1488 | ||
1489 | return unit_name_to_prefix_and_instance(u->meta.id); | |
1490 | } | |
1491 | ||
1492 | static char *specifier_prefix(char specifier, void *data, void *userdata) { | |
1493 | Unit *u = userdata; | |
1494 | assert(u); | |
1495 | ||
1496 | return unit_name_to_prefix(u->meta.id); | |
1497 | } | |
1498 | ||
1499 | static char *specifier_prefix_unescaped(char specifier, void *data, void *userdata) { | |
1500 | Unit *u = userdata; | |
1501 | char *p, *r; | |
1502 | ||
1503 | assert(u); | |
1504 | ||
1505 | if (!(p = unit_name_to_prefix(u->meta.id))) | |
1506 | return NULL; | |
1507 | ||
1508 | r = unit_name_unescape(p); | |
1509 | free(p); | |
1510 | ||
1511 | return r; | |
1512 | } | |
1513 | ||
1514 | static char *specifier_instance_unescaped(char specifier, void *data, void *userdata) { | |
1515 | Unit *u = userdata; | |
1516 | assert(u); | |
1517 | ||
1518 | if (u->meta.instance) | |
1519 | return unit_name_unescape(u->meta.instance); | |
1520 | ||
1521 | return strdup(""); | |
1522 | } | |
1523 | ||
1524 | char *unit_name_printf(Unit *u, const char* format) { | |
1525 | ||
1526 | /* | |
1527 | * This will use the passed string as format string and | |
1528 | * replace the following specifiers: | |
1529 | * | |
1530 | * %n: the full id of the unit (foo@bar.waldo) | |
1531 | * %N: the id of the unit without the suffix (foo@bar) | |
1532 | * %p: the prefix (foo) | |
1533 | * %i: the instance (bar) | |
1534 | */ | |
1535 | ||
1536 | const Specifier table[] = { | |
1537 | { 'n', specifier_string, u->meta.id }, | |
1538 | { 'N', specifier_prefix_and_instance, NULL }, | |
1539 | { 'p', specifier_prefix, NULL }, | |
1540 | { 'i', specifier_string, u->meta.instance }, | |
1541 | { 0, NULL, NULL } | |
1542 | }; | |
1543 | ||
1544 | assert(u); | |
1545 | assert(format); | |
1546 | ||
1547 | return specifier_printf(format, table, u); | |
1548 | } | |
1549 | ||
1550 | char *unit_full_printf(Unit *u, const char *format) { | |
1551 | ||
1552 | /* This is similar to unit_name_printf() but also supports | |
1553 | * unescaping */ | |
1554 | ||
1555 | const Specifier table[] = { | |
1556 | { 'n', specifier_string, u->meta.id }, | |
1557 | { 'N', specifier_prefix_and_instance, NULL }, | |
1558 | { 'p', specifier_prefix, NULL }, | |
1559 | { 'P', specifier_prefix_unescaped, NULL }, | |
1560 | { 'i', specifier_string, u->meta.instance }, | |
1561 | { 'I', specifier_instance_unescaped, NULL }, | |
1562 | { 0, NULL, NULL } | |
1563 | }; | |
1564 | ||
1565 | assert(u); | |
1566 | assert(format); | |
1567 | ||
1568 | return specifier_printf(format, table, u); | |
1569 | } | |
1570 | ||
1571 | char **unit_full_printf_strv(Unit *u, char **l) { | |
1572 | size_t n; | |
1573 | char **r, **i, **j; | |
1574 | ||
1575 | /* Applies unit_full_printf to every entry in l */ | |
1576 | ||
1577 | assert(u); | |
1578 | ||
1579 | n = strv_length(l); | |
1580 | if (!(r = new(char*, n+1))) | |
1581 | return NULL; | |
1582 | ||
1583 | for (i = l, j = r; *i; i++, j++) | |
1584 | if (!(*j = unit_full_printf(u, *i))) | |
1585 | goto fail; | |
1586 | ||
1587 | *j = NULL; | |
1588 | return r; | |
1589 | ||
1590 | fail: | |
1591 | j--; | |
1592 | while (j >= r) | |
1593 | free(*j); | |
1594 | ||
1595 | free(r); | |
1596 | ||
1597 | return NULL; | |
1598 | } | |
1599 | ||
94f04347 LP |
1600 | static const char* const unit_type_table[_UNIT_TYPE_MAX] = { |
1601 | [UNIT_SERVICE] = "service", | |
1602 | [UNIT_TIMER] = "timer", | |
1603 | [UNIT_SOCKET] = "socket", | |
1604 | [UNIT_TARGET] = "target", | |
1605 | [UNIT_DEVICE] = "device", | |
1606 | [UNIT_MOUNT] = "mount", | |
1607 | [UNIT_AUTOMOUNT] = "automount", | |
1608 | [UNIT_SNAPSHOT] = "snapshot" | |
1609 | }; | |
1610 | ||
1611 | DEFINE_STRING_TABLE_LOOKUP(unit_type, UnitType); | |
1612 | ||
1613 | static const char* const unit_load_state_table[_UNIT_LOAD_STATE_MAX] = { | |
1614 | [UNIT_STUB] = "stub", | |
1615 | [UNIT_LOADED] = "loaded", | |
23a177ef LP |
1616 | [UNIT_FAILED] = "failed", |
1617 | [UNIT_MERGED] = "merged" | |
94f04347 LP |
1618 | }; |
1619 | ||
1620 | DEFINE_STRING_TABLE_LOOKUP(unit_load_state, UnitLoadState); | |
1621 | ||
1622 | static const char* const unit_active_state_table[_UNIT_ACTIVE_STATE_MAX] = { | |
1623 | [UNIT_ACTIVE] = "active", | |
1624 | [UNIT_INACTIVE] = "inactive", | |
1625 | [UNIT_ACTIVATING] = "activating", | |
1626 | [UNIT_DEACTIVATING] = "deactivating" | |
1627 | }; | |
1628 | ||
1629 | DEFINE_STRING_TABLE_LOOKUP(unit_active_state, UnitActiveState); | |
1630 | ||
1631 | static const char* const unit_dependency_table[_UNIT_DEPENDENCY_MAX] = { | |
1632 | [UNIT_REQUIRES] = "Requires", | |
9e2f7c11 | 1633 | [UNIT_REQUIRES_OVERRIDABLE] = "RequiresOverridable", |
94f04347 LP |
1634 | [UNIT_WANTS] = "Wants", |
1635 | [UNIT_REQUISITE] = "Requisite", | |
9e2f7c11 | 1636 | [UNIT_REQUISITE_OVERRIDABLE] = "RequisiteOverridable", |
94f04347 | 1637 | [UNIT_REQUIRED_BY] = "RequiredBy", |
9e2f7c11 | 1638 | [UNIT_REQUIRED_BY_OVERRIDABLE] = "RequiredByOverridable", |
94f04347 LP |
1639 | [UNIT_WANTED_BY] = "WantedBy", |
1640 | [UNIT_CONFLICTS] = "Conflicts", | |
1641 | [UNIT_BEFORE] = "Before", | |
1642 | [UNIT_AFTER] = "After", | |
1643 | }; | |
1644 | ||
1645 | DEFINE_STRING_TABLE_LOOKUP(unit_dependency, UnitDependency); | |
50159e6a LP |
1646 | |
1647 | static const char* const kill_mode_table[_KILL_MODE_MAX] = { | |
80876c20 | 1648 | [KILL_CONTROL_GROUP] = "control-group", |
50159e6a | 1649 | [KILL_PROCESS_GROUP] = "process-group", |
80876c20 LP |
1650 | [KILL_PROCESS] = "process", |
1651 | [KILL_NONE] = "none" | |
50159e6a LP |
1652 | }; |
1653 | ||
1654 | DEFINE_STRING_TABLE_LOOKUP(kill_mode, KillMode); |