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d6c9574f | 1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
5cb5a6ff | 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 | |
5430f7f2 LP |
9 | under the terms of the GNU Lesser General Public License as published by |
10 | the Free Software Foundation; either version 2.1 of the License, or | |
a7334b09 LP |
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 | |
5430f7f2 | 16 | Lesser General Public License for more details. |
a7334b09 | 17 | |
5430f7f2 | 18 | You should have received a copy of the GNU Lesser General Public License |
a7334b09 LP |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. |
20 | ***/ | |
21 | ||
d46de8a1 LP |
22 | #include <errno.h> |
23 | ||
87f0e418 | 24 | #include "unit.h" |
871d7de4 | 25 | #include "unit-name.h" |
5cb5a6ff | 26 | #include "timer.h" |
871d7de4 | 27 | #include "dbus-timer.h" |
a40eb732 | 28 | #include "special.h" |
398ef8ba | 29 | #include "bus-errors.h" |
871d7de4 LP |
30 | |
31 | static const UnitActiveState state_translation_table[_TIMER_STATE_MAX] = { | |
32 | [TIMER_DEAD] = UNIT_INACTIVE, | |
33 | [TIMER_WAITING] = UNIT_ACTIVE, | |
34 | [TIMER_RUNNING] = UNIT_ACTIVE, | |
35 | [TIMER_ELAPSED] = UNIT_ACTIVE, | |
fdf20a31 | 36 | [TIMER_FAILED] = UNIT_FAILED |
871d7de4 LP |
37 | }; |
38 | ||
39 | static void timer_init(Unit *u) { | |
40 | Timer *t = TIMER(u); | |
41 | ||
42 | assert(u); | |
ac155bb8 | 43 | assert(u->load_state == UNIT_STUB); |
871d7de4 | 44 | |
36697dc0 LP |
45 | t->next_elapse_monotonic = (usec_t) -1; |
46 | t->next_elapse_realtime = (usec_t) -1; | |
47 | watch_init(&t->monotonic_watch); | |
48 | watch_init(&t->realtime_watch); | |
871d7de4 | 49 | } |
5cb5a6ff | 50 | |
74051b9b | 51 | void timer_free_values(Timer *t) { |
871d7de4 LP |
52 | TimerValue *v; |
53 | ||
54 | assert(t); | |
55 | ||
56 | while ((v = t->values)) { | |
57 | LIST_REMOVE(TimerValue, value, t->values, v); | |
36697dc0 LP |
58 | |
59 | if (v->calendar_spec) | |
60 | calendar_spec_free(v->calendar_spec); | |
61 | ||
871d7de4 LP |
62 | free(v); |
63 | } | |
74051b9b LP |
64 | } |
65 | ||
66 | static void timer_done(Unit *u) { | |
67 | Timer *t = TIMER(u); | |
68 | ||
69 | assert(t); | |
70 | ||
71 | timer_free_values(t); | |
871d7de4 | 72 | |
36697dc0 LP |
73 | unit_unwatch_timer(u, &t->monotonic_watch); |
74 | unit_unwatch_timer(u, &t->realtime_watch); | |
57020a3a LP |
75 | |
76 | unit_ref_unset(&t->unit); | |
871d7de4 LP |
77 | } |
78 | ||
79 | static int timer_verify(Timer *t) { | |
80 | assert(t); | |
81 | ||
1124fe6f | 82 | if (UNIT(t)->load_state != UNIT_LOADED) |
871d7de4 LP |
83 | return 0; |
84 | ||
85 | if (!t->values) { | |
66870f90 ZJS |
86 | log_error_unit(UNIT(t)->id, |
87 | "%s lacks value setting. Refusing.", UNIT(t)->id); | |
871d7de4 LP |
88 | return -EINVAL; |
89 | } | |
90 | ||
91 | return 0; | |
92 | } | |
93 | ||
6c155fe3 LP |
94 | static int timer_add_default_dependencies(Timer *t) { |
95 | int r; | |
96 | ||
97 | assert(t); | |
98 | ||
e3d84721 LP |
99 | r = unit_add_dependency_by_name(UNIT(t), UNIT_BEFORE, SPECIAL_TIMERS_TARGET, NULL, true); |
100 | if (r < 0) | |
101 | return r; | |
2a77d31d | 102 | |
e3d84721 | 103 | if (UNIT(t)->manager->running_as == SYSTEMD_SYSTEM) { |
36697dc0 LP |
104 | r = unit_add_two_dependencies_by_name(UNIT(t), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_SYSINIT_TARGET, NULL, true); |
105 | if (r < 0) | |
6c155fe3 | 106 | return r; |
2a77d31d | 107 | } |
6c155fe3 | 108 | |
ead8e478 | 109 | return unit_add_two_dependencies_by_name(UNIT(t), UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true); |
6c155fe3 LP |
110 | } |
111 | ||
871d7de4 LP |
112 | static int timer_load(Unit *u) { |
113 | Timer *t = TIMER(u); | |
114 | int r; | |
115 | ||
116 | assert(u); | |
ac155bb8 | 117 | assert(u->load_state == UNIT_STUB); |
871d7de4 | 118 | |
36697dc0 LP |
119 | r = unit_load_fragment_and_dropin(u); |
120 | if (r < 0) | |
871d7de4 LP |
121 | return r; |
122 | ||
ac155bb8 | 123 | if (u->load_state == UNIT_LOADED) { |
871d7de4 | 124 | |
57020a3a LP |
125 | if (!UNIT_DEREF(t->unit)) { |
126 | Unit *x; | |
127 | ||
128 | r = unit_load_related_unit(u, ".service", &x); | |
129 | if (r < 0) | |
871d7de4 LP |
130 | return r; |
131 | ||
57020a3a LP |
132 | unit_ref_set(&t->unit, x); |
133 | } | |
134 | ||
135 | r = unit_add_two_dependencies(u, UNIT_BEFORE, UNIT_TRIGGERS, UNIT_DEREF(t->unit), true); | |
136 | if (r < 0) | |
871d7de4 | 137 | return r; |
a40eb732 | 138 | |
36697dc0 LP |
139 | if (UNIT(t)->default_dependencies) { |
140 | r = timer_add_default_dependencies(t); | |
141 | if (r < 0) | |
a40eb732 | 142 | return r; |
36697dc0 | 143 | } |
871d7de4 LP |
144 | } |
145 | ||
146 | return timer_verify(t); | |
147 | } | |
148 | ||
149 | static void timer_dump(Unit *u, FILE *f, const char *prefix) { | |
150 | Timer *t = TIMER(u); | |
871d7de4 | 151 | TimerValue *v; |
034c6ed7 | 152 | |
871d7de4 LP |
153 | fprintf(f, |
154 | "%sTimer State: %s\n" | |
067d72c9 | 155 | "%sResult: %s\n" |
871d7de4 LP |
156 | "%sUnit: %s\n", |
157 | prefix, timer_state_to_string(t->state), | |
067d72c9 | 158 | prefix, timer_result_to_string(t->result), |
ac155bb8 | 159 | prefix, UNIT_DEREF(t->unit)->id); |
871d7de4 | 160 | |
36697dc0 LP |
161 | LIST_FOREACH(value, v, t->values) { |
162 | ||
163 | if (v->base == TIMER_CALENDAR) { | |
164 | _cleanup_free_ char *p = NULL; | |
165 | ||
166 | calendar_spec_to_string(v->calendar_spec, &p); | |
167 | ||
168 | fprintf(f, | |
169 | "%s%s: %s\n", | |
170 | prefix, | |
171 | timer_base_to_string(v->base), | |
172 | strna(p)); | |
173 | } else { | |
174 | char timespan1[FORMAT_TIMESPAN_MAX]; | |
175 | ||
176 | fprintf(f, | |
177 | "%s%s: %s\n", | |
178 | prefix, | |
179 | timer_base_to_string(v->base), | |
180 | strna(format_timespan(timespan1, sizeof(timespan1), v->value))); | |
181 | } | |
182 | } | |
871d7de4 LP |
183 | } |
184 | ||
185 | static void timer_set_state(Timer *t, TimerState state) { | |
186 | TimerState old_state; | |
034c6ed7 | 187 | assert(t); |
871d7de4 LP |
188 | |
189 | old_state = t->state; | |
190 | t->state = state; | |
191 | ||
36697dc0 LP |
192 | if (state != TIMER_WAITING) { |
193 | unit_unwatch_timer(UNIT(t), &t->monotonic_watch); | |
194 | unit_unwatch_timer(UNIT(t), &t->realtime_watch); | |
195 | } | |
871d7de4 LP |
196 | |
197 | if (state != old_state) | |
66870f90 ZJS |
198 | log_debug_unit(UNIT(t)->id, |
199 | "%s changed %s -> %s", UNIT(t)->id, | |
200 | timer_state_to_string(old_state), | |
201 | timer_state_to_string(state)); | |
871d7de4 | 202 | |
e2f3b44c | 203 | unit_notify(UNIT(t), state_translation_table[old_state], state_translation_table[state], true); |
871d7de4 LP |
204 | } |
205 | ||
206 | static void timer_enter_waiting(Timer *t, bool initial); | |
207 | ||
208 | static int timer_coldplug(Unit *u) { | |
209 | Timer *t = TIMER(u); | |
210 | ||
211 | assert(t); | |
212 | assert(t->state == TIMER_DEAD); | |
213 | ||
214 | if (t->deserialized_state != t->state) { | |
215 | ||
b363ca6f | 216 | if (t->deserialized_state == TIMER_WAITING) |
871d7de4 LP |
217 | timer_enter_waiting(t, false); |
218 | else | |
219 | timer_set_state(t, t->deserialized_state); | |
220 | } | |
221 | ||
222 | return 0; | |
223 | } | |
224 | ||
067d72c9 | 225 | static void timer_enter_dead(Timer *t, TimerResult f) { |
871d7de4 LP |
226 | assert(t); |
227 | ||
067d72c9 LP |
228 | if (f != TIMER_SUCCESS) |
229 | t->result = f; | |
871d7de4 | 230 | |
067d72c9 | 231 | timer_set_state(t, t->result != TIMER_SUCCESS ? TIMER_FAILED : TIMER_DEAD); |
871d7de4 LP |
232 | } |
233 | ||
234 | static void timer_enter_waiting(Timer *t, bool initial) { | |
235 | TimerValue *v; | |
36697dc0 LP |
236 | usec_t base = 0; |
237 | dual_timestamp ts; | |
238 | bool found_monotonic = false, found_realtime = false; | |
871d7de4 LP |
239 | int r; |
240 | ||
36697dc0 LP |
241 | dual_timestamp_get(&ts); |
242 | t->next_elapse_monotonic = t->next_elapse_realtime = 0; | |
871d7de4 LP |
243 | |
244 | LIST_FOREACH(value, v, t->values) { | |
245 | ||
246 | if (v->disabled) | |
247 | continue; | |
248 | ||
36697dc0 LP |
249 | if (v->base == TIMER_CALENDAR) { |
250 | ||
251 | r = calendar_spec_next_usec(v->calendar_spec, ts.realtime, &v->next_elapse); | |
252 | if (r < 0) | |
253 | continue; | |
254 | ||
255 | if (!initial && v->next_elapse < ts.realtime) { | |
256 | v->disabled = true; | |
257 | continue; | |
258 | } | |
871d7de4 | 259 | |
36697dc0 LP |
260 | if (!found_realtime) |
261 | t->next_elapse_realtime = v->next_elapse; | |
10717a1a | 262 | else |
36697dc0 | 263 | t->next_elapse_realtime = MIN(t->next_elapse_realtime, v->next_elapse); |
871d7de4 | 264 | |
36697dc0 | 265 | found_realtime = true; |
871d7de4 | 266 | |
36697dc0 LP |
267 | } else { |
268 | switch (v->base) { | |
871d7de4 | 269 | |
36697dc0 LP |
270 | case TIMER_ACTIVE: |
271 | if (state_translation_table[t->state] == UNIT_ACTIVE) | |
272 | base = UNIT(t)->inactive_exit_timestamp.monotonic; | |
273 | else | |
274 | base = ts.monotonic; | |
275 | break; | |
871d7de4 | 276 | |
36697dc0 LP |
277 | case TIMER_BOOT: |
278 | /* CLOCK_MONOTONIC equals the uptime on Linux */ | |
279 | base = 0; | |
280 | break; | |
871d7de4 | 281 | |
36697dc0 LP |
282 | case TIMER_STARTUP: |
283 | base = UNIT(t)->manager->userspace_timestamp.monotonic; | |
284 | break; | |
871d7de4 | 285 | |
36697dc0 | 286 | case TIMER_UNIT_ACTIVE: |
871d7de4 | 287 | |
36697dc0 LP |
288 | if (UNIT_DEREF(t->unit)->inactive_exit_timestamp.monotonic <= 0) |
289 | continue; | |
871d7de4 | 290 | |
36697dc0 LP |
291 | base = UNIT_DEREF(t->unit)->inactive_exit_timestamp.monotonic; |
292 | break; | |
871d7de4 | 293 | |
36697dc0 | 294 | case TIMER_UNIT_INACTIVE: |
871d7de4 | 295 | |
36697dc0 LP |
296 | if (UNIT_DEREF(t->unit)->inactive_enter_timestamp.monotonic <= 0) |
297 | continue; | |
871d7de4 | 298 | |
36697dc0 LP |
299 | base = UNIT_DEREF(t->unit)->inactive_enter_timestamp.monotonic; |
300 | break; | |
871d7de4 | 301 | |
36697dc0 LP |
302 | default: |
303 | assert_not_reached("Unknown timer base"); | |
304 | } | |
871d7de4 | 305 | |
36697dc0 LP |
306 | v->next_elapse = base + v->value; |
307 | ||
308 | if (!initial && v->next_elapse < ts.monotonic) { | |
309 | v->disabled = true; | |
310 | continue; | |
311 | } | |
312 | ||
313 | if (!found_monotonic) | |
314 | t->next_elapse_monotonic = v->next_elapse; | |
315 | else | |
316 | t->next_elapse_monotonic = MIN(t->next_elapse_monotonic, v->next_elapse); | |
317 | ||
318 | found_monotonic = true; | |
319 | } | |
871d7de4 LP |
320 | } |
321 | ||
36697dc0 | 322 | if (!found_monotonic && !found_realtime) { |
66870f90 | 323 | log_debug_unit(UNIT(t)->id, "%s: Timer is elapsed.", UNIT(t)->id); |
871d7de4 LP |
324 | timer_set_state(t, TIMER_ELAPSED); |
325 | return; | |
326 | } | |
327 | ||
36697dc0 LP |
328 | if (found_monotonic) { |
329 | char buf[FORMAT_TIMESPAN_MAX]; | |
66870f90 | 330 | log_debug_unit(UNIT(t)->id, |
1a512bf4 | 331 | "%s: Monotonic timer elapses in %s.", |
66870f90 | 332 | UNIT(t)->id, |
b719810d | 333 | format_timespan(buf, sizeof(buf), t->next_elapse_monotonic > ts.monotonic ? t->next_elapse_monotonic - ts.monotonic : 0)); |
871d7de4 | 334 | |
36697dc0 LP |
335 | r = unit_watch_timer(UNIT(t), CLOCK_MONOTONIC, false, t->next_elapse_monotonic, &t->monotonic_watch); |
336 | if (r < 0) | |
337 | goto fail; | |
338 | } else | |
339 | unit_unwatch_timer(UNIT(t), &t->monotonic_watch); | |
340 | ||
341 | if (found_realtime) { | |
342 | char buf[FORMAT_TIMESTAMP_MAX]; | |
66870f90 | 343 | log_debug_unit(UNIT(t)->id, |
1a512bf4 | 344 | "%s: Realtime timer elapses at %s.", |
66870f90 ZJS |
345 | UNIT(t)->id, |
346 | format_timestamp(buf, sizeof(buf), t->next_elapse_realtime)); | |
36697dc0 LP |
347 | |
348 | r = unit_watch_timer(UNIT(t), CLOCK_REALTIME, false, t->next_elapse_realtime, &t->realtime_watch); | |
349 | if (r < 0) | |
350 | goto fail; | |
351 | } else | |
352 | unit_unwatch_timer(UNIT(t), &t->realtime_watch); | |
871d7de4 LP |
353 | |
354 | timer_set_state(t, TIMER_WAITING); | |
355 | return; | |
356 | ||
357 | fail: | |
66870f90 ZJS |
358 | log_warning_unit(UNIT(t)->id, |
359 | "%s failed to enter waiting state: %s", | |
360 | UNIT(t)->id, strerror(-r)); | |
067d72c9 | 361 | timer_enter_dead(t, TIMER_FAILURE_RESOURCES); |
871d7de4 LP |
362 | } |
363 | ||
364 | static void timer_enter_running(Timer *t) { | |
398ef8ba | 365 | DBusError error; |
871d7de4 | 366 | int r; |
398ef8ba | 367 | |
871d7de4 | 368 | assert(t); |
398ef8ba | 369 | dbus_error_init(&error); |
871d7de4 | 370 | |
ba3e67a7 | 371 | /* Don't start job if we are supposed to go down */ |
1124fe6f | 372 | if (UNIT(t)->job && UNIT(t)->job->type == JOB_STOP) |
ba3e67a7 LP |
373 | return; |
374 | ||
36697dc0 LP |
375 | r = manager_add_job(UNIT(t)->manager, JOB_START, UNIT_DEREF(t->unit), JOB_REPLACE, true, &error, NULL); |
376 | if (r < 0) | |
871d7de4 LP |
377 | goto fail; |
378 | ||
379 | timer_set_state(t, TIMER_RUNNING); | |
380 | return; | |
381 | ||
382 | fail: | |
66870f90 ZJS |
383 | log_warning_unit(UNIT(t)->id, |
384 | "%s failed to queue unit startup job: %s", | |
385 | UNIT(t)->id, bus_error(&error, r)); | |
067d72c9 | 386 | timer_enter_dead(t, TIMER_FAILURE_RESOURCES); |
398ef8ba LP |
387 | |
388 | dbus_error_free(&error); | |
871d7de4 LP |
389 | } |
390 | ||
391 | static int timer_start(Unit *u) { | |
392 | Timer *t = TIMER(u); | |
393 | ||
394 | assert(t); | |
fdf20a31 | 395 | assert(t->state == TIMER_DEAD || t->state == TIMER_FAILED); |
01f78473 | 396 | |
ac155bb8 | 397 | if (UNIT_DEREF(t->unit)->load_state != UNIT_LOADED) |
01f78473 | 398 | return -ENOENT; |
871d7de4 | 399 | |
067d72c9 | 400 | t->result = TIMER_SUCCESS; |
871d7de4 LP |
401 | timer_enter_waiting(t, true); |
402 | return 0; | |
403 | } | |
404 | ||
405 | static int timer_stop(Unit *u) { | |
406 | Timer *t = TIMER(u); | |
407 | ||
408 | assert(t); | |
409 | assert(t->state == TIMER_WAITING || t->state == TIMER_RUNNING || t->state == TIMER_ELAPSED); | |
410 | ||
067d72c9 | 411 | timer_enter_dead(t, TIMER_SUCCESS); |
871d7de4 LP |
412 | return 0; |
413 | } | |
414 | ||
415 | static int timer_serialize(Unit *u, FILE *f, FDSet *fds) { | |
416 | Timer *t = TIMER(u); | |
417 | ||
418 | assert(u); | |
419 | assert(f); | |
420 | assert(fds); | |
421 | ||
422 | unit_serialize_item(u, f, "state", timer_state_to_string(t->state)); | |
067d72c9 | 423 | unit_serialize_item(u, f, "result", timer_result_to_string(t->result)); |
871d7de4 LP |
424 | |
425 | return 0; | |
426 | } | |
427 | ||
428 | static int timer_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) { | |
429 | Timer *t = TIMER(u); | |
430 | ||
431 | assert(u); | |
432 | assert(key); | |
433 | assert(value); | |
434 | assert(fds); | |
435 | ||
436 | if (streq(key, "state")) { | |
437 | TimerState state; | |
438 | ||
36697dc0 LP |
439 | state = timer_state_from_string(value); |
440 | if (state < 0) | |
66870f90 | 441 | log_debug_unit(u->id, "Failed to parse state value %s", value); |
871d7de4 LP |
442 | else |
443 | t->deserialized_state = state; | |
067d72c9 LP |
444 | } else if (streq(key, "result")) { |
445 | TimerResult f; | |
446 | ||
447 | f = timer_result_from_string(value); | |
448 | if (f < 0) | |
66870f90 | 449 | log_debug_unit(u->id, "Failed to parse result value %s", value); |
067d72c9 LP |
450 | else if (f != TIMER_SUCCESS) |
451 | t->result = f; | |
452 | ||
871d7de4 | 453 | } else |
66870f90 | 454 | log_debug_unit(u->id, "Unknown serialization key '%s'", key); |
871d7de4 LP |
455 | |
456 | return 0; | |
034c6ed7 LP |
457 | } |
458 | ||
87f0e418 | 459 | static UnitActiveState timer_active_state(Unit *u) { |
871d7de4 LP |
460 | assert(u); |
461 | ||
462 | return state_translation_table[TIMER(u)->state]; | |
463 | } | |
464 | ||
465 | static const char *timer_sub_state_to_string(Unit *u) { | |
466 | assert(u); | |
467 | ||
468 | return timer_state_to_string(TIMER(u)->state); | |
469 | } | |
470 | ||
471 | static void timer_timer_event(Unit *u, uint64_t elapsed, Watch *w) { | |
472 | Timer *t = TIMER(u); | |
473 | ||
474 | assert(t); | |
475 | assert(elapsed == 1); | |
5cb5a6ff | 476 | |
871d7de4 LP |
477 | if (t->state != TIMER_WAITING) |
478 | return; | |
5cb5a6ff | 479 | |
66870f90 | 480 | log_debug_unit(u->id, "Timer elapsed on %s", u->id); |
871d7de4 | 481 | timer_enter_running(t); |
5cb5a6ff LP |
482 | } |
483 | ||
871d7de4 | 484 | void timer_unit_notify(Unit *u, UnitActiveState new_state) { |
871d7de4 | 485 | Iterator i; |
57020a3a | 486 | Unit *k; |
871d7de4 | 487 | |
ac155bb8 | 488 | if (u->type == UNIT_TIMER) |
871d7de4 LP |
489 | return; |
490 | ||
ac155bb8 | 491 | SET_FOREACH(k, u->dependencies[UNIT_TRIGGERED_BY], i) { |
871d7de4 LP |
492 | Timer *t; |
493 | TimerValue *v; | |
494 | ||
ac155bb8 | 495 | if (k->type != UNIT_TIMER) |
871d7de4 LP |
496 | continue; |
497 | ||
ac155bb8 | 498 | if (k->load_state != UNIT_LOADED) |
01f78473 LP |
499 | continue; |
500 | ||
57020a3a | 501 | t = TIMER(k); |
871d7de4 LP |
502 | |
503 | /* Reenable all timers that depend on unit state */ | |
504 | LIST_FOREACH(value, v, t->values) | |
505 | if (v->base == TIMER_UNIT_ACTIVE || | |
506 | v->base == TIMER_UNIT_INACTIVE) | |
507 | v->disabled = false; | |
508 | ||
509 | switch (t->state) { | |
510 | ||
511 | case TIMER_WAITING: | |
512 | case TIMER_ELAPSED: | |
513 | ||
514 | /* Recalculate sleep time */ | |
515 | timer_enter_waiting(t, false); | |
516 | break; | |
517 | ||
518 | case TIMER_RUNNING: | |
519 | ||
fdf20a31 | 520 | if (UNIT_IS_INACTIVE_OR_FAILED(new_state)) { |
66870f90 ZJS |
521 | log_debug_unit(UNIT(t)->id, |
522 | "%s got notified about unit deactivation.", | |
523 | UNIT(t)->id); | |
871d7de4 LP |
524 | timer_enter_waiting(t, false); |
525 | } | |
526 | ||
527 | break; | |
528 | ||
529 | case TIMER_DEAD: | |
fdf20a31 | 530 | case TIMER_FAILED: |
0b021426 | 531 | break; |
871d7de4 LP |
532 | |
533 | default: | |
534 | assert_not_reached("Unknown timer state"); | |
535 | } | |
536 | } | |
871d7de4 LP |
537 | } |
538 | ||
fdf20a31 | 539 | static void timer_reset_failed(Unit *u) { |
5632e374 LP |
540 | Timer *t = TIMER(u); |
541 | ||
542 | assert(t); | |
543 | ||
fdf20a31 | 544 | if (t->state == TIMER_FAILED) |
5632e374 LP |
545 | timer_set_state(t, TIMER_DEAD); |
546 | ||
067d72c9 | 547 | t->result = TIMER_SUCCESS; |
5632e374 LP |
548 | } |
549 | ||
8742514c LP |
550 | static void timer_time_change(Unit *u) { |
551 | Timer *t = TIMER(u); | |
552 | ||
553 | assert(u); | |
554 | ||
555 | if (t->state != TIMER_WAITING) | |
556 | return; | |
557 | ||
c5962bd1 MS |
558 | log_debug_unit(u->id, |
559 | "%s: time change, recalculating next elapse.", u->id); | |
8742514c LP |
560 | timer_enter_waiting(t, false); |
561 | } | |
562 | ||
871d7de4 LP |
563 | static const char* const timer_state_table[_TIMER_STATE_MAX] = { |
564 | [TIMER_DEAD] = "dead", | |
565 | [TIMER_WAITING] = "waiting", | |
566 | [TIMER_RUNNING] = "running", | |
567 | [TIMER_ELAPSED] = "elapsed", | |
fdf20a31 | 568 | [TIMER_FAILED] = "failed" |
871d7de4 LP |
569 | }; |
570 | ||
571 | DEFINE_STRING_TABLE_LOOKUP(timer_state, TimerState); | |
572 | ||
573 | static const char* const timer_base_table[_TIMER_BASE_MAX] = { | |
03fae018 LP |
574 | [TIMER_ACTIVE] = "OnActiveSec", |
575 | [TIMER_BOOT] = "OnBootSec", | |
576 | [TIMER_STARTUP] = "OnStartupSec", | |
577 | [TIMER_UNIT_ACTIVE] = "OnUnitActiveSec", | |
36697dc0 LP |
578 | [TIMER_UNIT_INACTIVE] = "OnUnitInactiveSec", |
579 | [TIMER_CALENDAR] = "OnCalendar" | |
871d7de4 LP |
580 | }; |
581 | ||
582 | DEFINE_STRING_TABLE_LOOKUP(timer_base, TimerBase); | |
583 | ||
067d72c9 LP |
584 | static const char* const timer_result_table[_TIMER_RESULT_MAX] = { |
585 | [TIMER_SUCCESS] = "success", | |
586 | [TIMER_FAILURE_RESOURCES] = "resources" | |
587 | }; | |
588 | ||
589 | DEFINE_STRING_TABLE_LOOKUP(timer_result, TimerResult); | |
590 | ||
87f0e418 | 591 | const UnitVTable timer_vtable = { |
7d17cfbc | 592 | .object_size = sizeof(Timer), |
f975e971 LP |
593 | .sections = |
594 | "Unit\0" | |
595 | "Timer\0" | |
596 | "Install\0", | |
5cb5a6ff | 597 | |
871d7de4 | 598 | .init = timer_init, |
034c6ed7 | 599 | .done = timer_done, |
871d7de4 LP |
600 | .load = timer_load, |
601 | ||
602 | .coldplug = timer_coldplug, | |
603 | ||
604 | .dump = timer_dump, | |
605 | ||
606 | .start = timer_start, | |
607 | .stop = timer_stop, | |
608 | ||
609 | .serialize = timer_serialize, | |
610 | .deserialize_item = timer_deserialize_item, | |
611 | ||
612 | .active_state = timer_active_state, | |
613 | .sub_state_to_string = timer_sub_state_to_string, | |
614 | ||
615 | .timer_event = timer_timer_event, | |
5cb5a6ff | 616 | |
fdf20a31 | 617 | .reset_failed = timer_reset_failed, |
8742514c | 618 | .time_change = timer_time_change, |
5632e374 | 619 | |
c4e2ceae LP |
620 | .bus_interface = "org.freedesktop.systemd1.Timer", |
621 | .bus_message_handler = bus_timer_message_handler, | |
622 | .bus_invalidating_properties = bus_timer_invalidating_properties | |
5cb5a6ff | 623 | }; |