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d6c9574f | 1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
60918275 | 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 | ||
60918275 | 22 | #include <assert.h> |
1ffba6fe | 23 | #include <errno.h> |
faf919f1 LP |
24 | #include <sys/timerfd.h> |
25 | #include <sys/epoll.h> | |
60918275 | 26 | |
718db961 LP |
27 | #include "sd-id128.h" |
28 | #include "sd-messages.h" | |
94f04347 LP |
29 | #include "set.h" |
30 | #include "unit.h" | |
60918275 | 31 | #include "macro.h" |
94f04347 LP |
32 | #include "strv.h" |
33 | #include "load-fragment.h" | |
34 | #include "load-dropin.h" | |
f50e0a01 | 35 | #include "log.h" |
4139c1b2 | 36 | #include "dbus-job.h" |
c65eb836 | 37 | #include "special.h" |
f485606b | 38 | #include "async.h" |
c65eb836 | 39 | #include "virt.h" |
718db961 | 40 | #include "dbus-client-track.h" |
97e6a119 | 41 | |
39a18c60 | 42 | Job* job_new_raw(Unit *unit) { |
60918275 LP |
43 | Job *j; |
44 | ||
39a18c60 MS |
45 | /* used for deserialization */ |
46 | ||
87f0e418 | 47 | assert(unit); |
60918275 | 48 | |
39a18c60 MS |
49 | j = new0(Job, 1); |
50 | if (!j) | |
60918275 LP |
51 | return NULL; |
52 | ||
668ad332 | 53 | j->manager = unit->manager; |
87f0e418 | 54 | j->unit = unit; |
e0209d83 | 55 | j->type = _JOB_TYPE_INVALID; |
faf919f1 | 56 | |
39a18c60 MS |
57 | return j; |
58 | } | |
59 | ||
60 | Job* job_new(Unit *unit, JobType type) { | |
61 | Job *j; | |
62 | ||
63 | assert(type < _JOB_TYPE_MAX); | |
64 | ||
65 | j = job_new_raw(unit); | |
66 | if (!j) | |
67 | return NULL; | |
68 | ||
69 | j->id = j->manager->current_job_id++; | |
70 | j->type = type; | |
71 | ||
e5b5ae50 | 72 | /* We don't link it here, that's what job_dependency() is for */ |
60918275 LP |
73 | |
74 | return j; | |
75 | } | |
76 | ||
97e7d748 MS |
77 | void job_free(Job *j) { |
78 | assert(j); | |
79 | assert(!j->installed); | |
02a3bcc6 MS |
80 | assert(!j->transaction_prev); |
81 | assert(!j->transaction_next); | |
82 | assert(!j->subject_list); | |
83 | assert(!j->object_list); | |
60918275 | 84 | |
c1e1601e | 85 | if (j->in_run_queue) |
71fda00f | 86 | LIST_REMOVE(run_queue, j->manager->run_queue, j); |
c1e1601e LP |
87 | |
88 | if (j->in_dbus_queue) | |
71fda00f | 89 | LIST_REMOVE(dbus_queue, j->manager->dbus_job_queue, j); |
c1e1601e | 90 | |
718db961 | 91 | sd_event_source_unref(j->timer_event_source); |
faf919f1 | 92 | |
718db961 | 93 | bus_client_track_free(j->subscribed); |
faf919f1 | 94 | |
60918275 LP |
95 | free(j); |
96 | } | |
a66d02c3 | 97 | |
05d576f1 | 98 | void job_uninstall(Job *j) { |
e0209d83 MS |
99 | Job **pj; |
100 | ||
05d576f1 | 101 | assert(j->installed); |
e0209d83 MS |
102 | |
103 | pj = (j->type == JOB_NOP) ? &j->unit->nop_job : &j->unit->job; | |
104 | assert(*pj == j); | |
105 | ||
05d576f1 MS |
106 | /* Detach from next 'bigger' objects */ |
107 | ||
39a18c60 MS |
108 | /* daemon-reload should be transparent to job observers */ |
109 | if (j->manager->n_reloading <= 0) | |
110 | bus_job_send_removed_signal(j); | |
05d576f1 | 111 | |
e0209d83 MS |
112 | *pj = NULL; |
113 | ||
d6a093d0 | 114 | unit_add_to_gc_queue(j->unit); |
05d576f1 MS |
115 | |
116 | hashmap_remove(j->manager->jobs, UINT32_TO_PTR(j->id)); | |
117 | j->installed = false; | |
118 | } | |
119 | ||
656bbffc MS |
120 | static bool job_type_allows_late_merge(JobType t) { |
121 | /* Tells whether it is OK to merge a job of type 't' with an already | |
122 | * running job. | |
123 | * Reloads cannot be merged this way. Think of the sequence: | |
124 | * 1. Reload of a daemon is in progress; the daemon has already loaded | |
125 | * its config file, but hasn't completed the reload operation yet. | |
126 | * 2. Edit foo's config file. | |
127 | * 3. Trigger another reload to have the daemon use the new config. | |
128 | * Should the second reload job be merged into the first one, the daemon | |
129 | * would not know about the new config. | |
130 | * JOB_RESTART jobs on the other hand can be merged, because they get | |
131 | * patched into JOB_START after stopping the unit. So if we see a | |
132 | * JOB_RESTART running, it means the unit hasn't stopped yet and at | |
133 | * this time the merge is still allowed. */ | |
e0209d83 | 134 | return t != JOB_RELOAD; |
656bbffc MS |
135 | } |
136 | ||
137 | static void job_merge_into_installed(Job *j, Job *other) { | |
138 | assert(j->installed); | |
139 | assert(j->unit == other->unit); | |
140 | ||
e0209d83 MS |
141 | if (j->type != JOB_NOP) |
142 | job_type_merge_and_collapse(&j->type, other->type, j->unit); | |
143 | else | |
144 | assert(other->type == JOB_NOP); | |
656bbffc MS |
145 | |
146 | j->override = j->override || other->override; | |
23ade460 | 147 | j->irreversible = j->irreversible || other->irreversible; |
e45460d6 | 148 | j->ignore_order = j->ignore_order || other->ignore_order; |
656bbffc MS |
149 | } |
150 | ||
151 | Job* job_install(Job *j) { | |
e0209d83 MS |
152 | Job **pj; |
153 | Job *uj; | |
05d576f1 | 154 | |
656bbffc | 155 | assert(!j->installed); |
e0209d83 MS |
156 | assert(j->type < _JOB_TYPE_MAX_IN_TRANSACTION); |
157 | ||
158 | pj = (j->type == JOB_NOP) ? &j->unit->nop_job : &j->unit->job; | |
159 | uj = *pj; | |
656bbffc | 160 | |
05d576f1 | 161 | if (uj) { |
e0209d83 | 162 | if (j->type != JOB_NOP && job_type_is_conflicting(uj->type, j->type)) |
1abc85b8 | 163 | job_finish_and_invalidate(uj, JOB_CANCELED, false); |
656bbffc MS |
164 | else { |
165 | /* not conflicting, i.e. mergeable */ | |
166 | ||
e0209d83 | 167 | if (j->type == JOB_NOP || uj->state == JOB_WAITING || |
656bbffc MS |
168 | (job_type_allows_late_merge(j->type) && job_type_is_superset(uj->type, j->type))) { |
169 | job_merge_into_installed(uj, j); | |
66870f90 ZJS |
170 | log_debug_unit(uj->unit->id, |
171 | "Merged into installed job %s/%s as %u", | |
172 | uj->unit->id, job_type_to_string(uj->type), (unsigned) uj->id); | |
656bbffc MS |
173 | return uj; |
174 | } else { | |
175 | /* already running and not safe to merge into */ | |
176 | /* Patch uj to become a merged job and re-run it. */ | |
177 | /* XXX It should be safer to queue j to run after uj finishes, but it is | |
178 | * not currently possible to have more than one installed job per unit. */ | |
179 | job_merge_into_installed(uj, j); | |
66870f90 ZJS |
180 | log_debug_unit(uj->unit->id, |
181 | "Merged into running job, re-running: %s/%s as %u", | |
182 | uj->unit->id, job_type_to_string(uj->type), (unsigned) uj->id); | |
656bbffc | 183 | uj->state = JOB_WAITING; |
637f8b8e | 184 | uj->manager->n_running_jobs--; |
656bbffc MS |
185 | return uj; |
186 | } | |
187 | } | |
05d576f1 MS |
188 | } |
189 | ||
656bbffc | 190 | /* Install the job */ |
e0209d83 | 191 | *pj = j; |
05d576f1 MS |
192 | j->installed = true; |
193 | j->manager->n_installed_jobs ++; | |
66870f90 ZJS |
194 | log_debug_unit(j->unit->id, |
195 | "Installed new job %s/%s as %u", | |
196 | j->unit->id, job_type_to_string(j->type), (unsigned) j->id); | |
656bbffc | 197 | return j; |
05d576f1 MS |
198 | } |
199 | ||
e0209d83 MS |
200 | int job_install_deserialized(Job *j) { |
201 | Job **pj; | |
202 | ||
39a18c60 MS |
203 | assert(!j->installed); |
204 | ||
e0209d83 MS |
205 | if (j->type < 0 || j->type >= _JOB_TYPE_MAX_IN_TRANSACTION) { |
206 | log_debug("Invalid job type %s in deserialization.", strna(job_type_to_string(j->type))); | |
207 | return -EINVAL; | |
208 | } | |
209 | ||
210 | pj = (j->type == JOB_NOP) ? &j->unit->nop_job : &j->unit->job; | |
211 | ||
212 | if (*pj) { | |
66870f90 ZJS |
213 | log_debug_unit(j->unit->id, |
214 | "Unit %s already has a job installed. Not installing deserialized job.", | |
215 | j->unit->id); | |
e0209d83 | 216 | return -EEXIST; |
39a18c60 | 217 | } |
e0209d83 | 218 | *pj = j; |
39a18c60 | 219 | j->installed = true; |
66870f90 ZJS |
220 | log_debug_unit(j->unit->id, |
221 | "Reinstalled deserialized job %s/%s as %u", | |
222 | j->unit->id, job_type_to_string(j->type), (unsigned) j->id); | |
e0209d83 | 223 | return 0; |
39a18c60 MS |
224 | } |
225 | ||
1da4264f | 226 | JobDependency* job_dependency_new(Job *subject, Job *object, bool matters, bool conflicts) { |
e5b5ae50 LP |
227 | JobDependency *l; |
228 | ||
229 | assert(object); | |
230 | ||
231 | /* Adds a new job link, which encodes that the 'subject' job | |
232 | * needs the 'object' job in some way. If 'subject' is NULL | |
233 | * this means the 'anchor' job (i.e. the one the user | |
35b8ca3a | 234 | * explicitly asked for) is the requester. */ |
e5b5ae50 | 235 | |
ceed3570 | 236 | if (!(l = new0(JobDependency, 1))) |
e5b5ae50 LP |
237 | return NULL; |
238 | ||
239 | l->subject = subject; | |
240 | l->object = object; | |
241 | l->matters = matters; | |
69dd2852 | 242 | l->conflicts = conflicts; |
e5b5ae50 | 243 | |
44d8db9e | 244 | if (subject) |
71fda00f | 245 | LIST_PREPEND(subject, subject->subject_list, l); |
e5b5ae50 | 246 | |
71fda00f | 247 | LIST_PREPEND(object, object->object_list, l); |
e5b5ae50 LP |
248 | |
249 | return l; | |
250 | } | |
251 | ||
1da4264f | 252 | void job_dependency_free(JobDependency *l) { |
e5b5ae50 LP |
253 | assert(l); |
254 | ||
44d8db9e | 255 | if (l->subject) |
71fda00f | 256 | LIST_REMOVE(subject, l->subject->subject_list, l); |
e5b5ae50 | 257 | |
71fda00f | 258 | LIST_REMOVE(object, l->object->object_list, l); |
e5b5ae50 LP |
259 | |
260 | free(l); | |
261 | } | |
262 | ||
1ffba6fe | 263 | void job_dump(Job *j, FILE*f, const char *prefix) { |
a66d02c3 LP |
264 | assert(j); |
265 | assert(f); | |
266 | ||
9eb63b3c LP |
267 | if (!prefix) |
268 | prefix = ""; | |
269 | ||
ceed3570 | 270 | fprintf(f, |
40d50879 LP |
271 | "%s-> Job %u:\n" |
272 | "%s\tAction: %s -> %s\n" | |
5cb5a6ff | 273 | "%s\tState: %s\n" |
23ade460 MS |
274 | "%s\tForced: %s\n" |
275 | "%s\tIrreversible: %s\n", | |
ceed3570 | 276 | prefix, j->id, |
ac155bb8 | 277 | prefix, j->unit->id, job_type_to_string(j->type), |
94f04347 | 278 | prefix, job_state_to_string(j->state), |
23ade460 MS |
279 | prefix, yes_no(j->override), |
280 | prefix, yes_no(j->irreversible)); | |
a66d02c3 | 281 | } |
e5b5ae50 | 282 | |
348e27fe MS |
283 | /* |
284 | * Merging is commutative, so imagine the matrix as symmetric. We store only | |
285 | * its lower triangle to avoid duplication. We don't store the main diagonal, | |
286 | * because A merged with A is simply A. | |
287 | * | |
e0209d83 MS |
288 | * If the resulting type is collapsed immediately afterwards (to get rid of |
289 | * the JOB_RELOAD_OR_START, which lies outside the lookup function's domain), | |
290 | * the following properties hold: | |
291 | * | |
348e27fe MS |
292 | * Merging is associative! A merged with B merged with C is the same as |
293 | * A merged with C merged with B. | |
294 | * | |
295 | * Mergeability is transitive! If A can be merged with B and B with C then | |
296 | * A also with C. | |
297 | * | |
298 | * Also, if A merged with B cannot be merged with C, then either A or B cannot | |
299 | * be merged with C either. | |
300 | */ | |
301 | static const JobType job_merging_table[] = { | |
e0209d83 MS |
302 | /* What \ With * JOB_START JOB_VERIFY_ACTIVE JOB_STOP JOB_RELOAD */ |
303 | /*********************************************************************************/ | |
348e27fe MS |
304 | /*JOB_START */ |
305 | /*JOB_VERIFY_ACTIVE */ JOB_START, | |
306 | /*JOB_STOP */ -1, -1, | |
307 | /*JOB_RELOAD */ JOB_RELOAD_OR_START, JOB_RELOAD, -1, | |
e0209d83 | 308 | /*JOB_RESTART */ JOB_RESTART, JOB_RESTART, -1, JOB_RESTART, |
348e27fe MS |
309 | }; |
310 | ||
311 | JobType job_type_lookup_merge(JobType a, JobType b) { | |
e0209d83 MS |
312 | assert_cc(ELEMENTSOF(job_merging_table) == _JOB_TYPE_MAX_MERGING * (_JOB_TYPE_MAX_MERGING - 1) / 2); |
313 | assert(a >= 0 && a < _JOB_TYPE_MAX_MERGING); | |
314 | assert(b >= 0 && b < _JOB_TYPE_MAX_MERGING); | |
1ffba6fe LP |
315 | |
316 | if (a == b) | |
348e27fe | 317 | return a; |
1ffba6fe | 318 | |
348e27fe MS |
319 | if (a < b) { |
320 | JobType tmp = a; | |
321 | a = b; | |
322 | b = tmp; | |
1ffba6fe | 323 | } |
e094e853 | 324 | |
348e27fe | 325 | return job_merging_table[(a - 1) * a / 2 + b]; |
e094e853 | 326 | } |
cd2dbd7d | 327 | |
593fbdd2 LP |
328 | bool job_type_is_redundant(JobType a, UnitActiveState b) { |
329 | switch (a) { | |
330 | ||
331 | case JOB_START: | |
332 | return | |
333 | b == UNIT_ACTIVE || | |
032ff4af | 334 | b == UNIT_RELOADING; |
593fbdd2 LP |
335 | |
336 | case JOB_STOP: | |
337 | return | |
6124958c | 338 | b == UNIT_INACTIVE || |
fdf20a31 | 339 | b == UNIT_FAILED; |
593fbdd2 LP |
340 | |
341 | case JOB_VERIFY_ACTIVE: | |
342 | return | |
343 | b == UNIT_ACTIVE || | |
032ff4af | 344 | b == UNIT_RELOADING; |
593fbdd2 LP |
345 | |
346 | case JOB_RELOAD: | |
347 | return | |
032ff4af | 348 | b == UNIT_RELOADING; |
593fbdd2 | 349 | |
593fbdd2 LP |
350 | case JOB_RESTART: |
351 | return | |
352 | b == UNIT_ACTIVATING; | |
353 | ||
e0209d83 MS |
354 | default: |
355 | assert_not_reached("Invalid job type"); | |
356 | } | |
357 | } | |
358 | ||
359 | void job_type_collapse(JobType *t, Unit *u) { | |
360 | UnitActiveState s; | |
361 | ||
362 | switch (*t) { | |
363 | ||
593fbdd2 | 364 | case JOB_TRY_RESTART: |
e0209d83 MS |
365 | s = unit_active_state(u); |
366 | if (UNIT_IS_INACTIVE_OR_DEACTIVATING(s)) | |
367 | *t = JOB_NOP; | |
368 | else | |
369 | *t = JOB_RESTART; | |
370 | break; | |
371 | ||
372 | case JOB_RELOAD_OR_START: | |
373 | s = unit_active_state(u); | |
374 | if (UNIT_IS_INACTIVE_OR_DEACTIVATING(s)) | |
375 | *t = JOB_START; | |
376 | else | |
377 | *t = JOB_RELOAD; | |
378 | break; | |
593fbdd2 LP |
379 | |
380 | default: | |
e0209d83 | 381 | ; |
593fbdd2 LP |
382 | } |
383 | } | |
384 | ||
e0209d83 MS |
385 | int job_type_merge_and_collapse(JobType *a, JobType b, Unit *u) { |
386 | JobType t = job_type_lookup_merge(*a, b); | |
387 | if (t < 0) | |
388 | return -EEXIST; | |
389 | *a = t; | |
390 | job_type_collapse(a, u); | |
391 | return 0; | |
392 | } | |
393 | ||
9588bc32 | 394 | static bool job_is_runnable(Job *j) { |
034c6ed7 | 395 | Iterator i; |
87f0e418 | 396 | Unit *other; |
5cb5a6ff LP |
397 | |
398 | assert(j); | |
ac1135be | 399 | assert(j->installed); |
5cb5a6ff | 400 | |
87f0e418 | 401 | /* Checks whether there is any job running for the units this |
5cb5a6ff | 402 | * job needs to be running after (in the case of a 'positive' |
e67c3609 LP |
403 | * job type) or before (in the case of a 'negative' job |
404 | * type. */ | |
405 | ||
406 | /* First check if there is an override */ | |
cebe0d41 | 407 | if (j->ignore_order) |
e67c3609 | 408 | return true; |
5cb5a6ff | 409 | |
e0209d83 MS |
410 | if (j->type == JOB_NOP) |
411 | return true; | |
412 | ||
5cb5a6ff LP |
413 | if (j->type == JOB_START || |
414 | j->type == JOB_VERIFY_ACTIVE || | |
e0209d83 | 415 | j->type == JOB_RELOAD) { |
5cb5a6ff LP |
416 | |
417 | /* Immediate result is that the job is or might be | |
418 | * started. In this case lets wait for the | |
419 | * dependencies, regardless whether they are | |
420 | * starting or stopping something. */ | |
421 | ||
ac155bb8 MS |
422 | SET_FOREACH(other, j->unit->dependencies[UNIT_AFTER], i) |
423 | if (other->job) | |
5cb5a6ff LP |
424 | return false; |
425 | } | |
426 | ||
427 | /* Also, if something else is being stopped and we should | |
428 | * change state after it, then lets wait. */ | |
429 | ||
ac155bb8 MS |
430 | SET_FOREACH(other, j->unit->dependencies[UNIT_BEFORE], i) |
431 | if (other->job && | |
432 | (other->job->type == JOB_STOP || | |
e0209d83 | 433 | other->job->type == JOB_RESTART)) |
5cb5a6ff LP |
434 | return false; |
435 | ||
436 | /* This means that for a service a and a service b where b | |
437 | * shall be started after a: | |
438 | * | |
439 | * start a + start b → 1st step start a, 2nd step start b | |
440 | * start a + stop b → 1st step stop b, 2nd step start a | |
441 | * stop a + start b → 1st step stop a, 2nd step start b | |
442 | * stop a + stop b → 1st step stop b, 2nd step stop a | |
443 | * | |
444 | * This has the side effect that restarts are properly | |
445 | * synchronized too. */ | |
446 | ||
447 | return true; | |
448 | } | |
449 | ||
bbd1a837 | 450 | static void job_change_type(Job *j, JobType newtype) { |
66870f90 ZJS |
451 | log_debug_unit(j->unit->id, |
452 | "Converting job %s/%s -> %s/%s", | |
453 | j->unit->id, job_type_to_string(j->type), | |
454 | j->unit->id, job_type_to_string(newtype)); | |
bbd1a837 MS |
455 | |
456 | j->type = newtype; | |
457 | } | |
458 | ||
5cb5a6ff LP |
459 | int job_run_and_invalidate(Job *j) { |
460 | int r; | |
2cf19a7a | 461 | uint32_t id; |
637f8b8e | 462 | Manager *m = j->manager; |
ac1135be | 463 | |
5cb5a6ff | 464 | assert(j); |
ac1135be | 465 | assert(j->installed); |
e0209d83 | 466 | assert(j->type < _JOB_TYPE_MAX_IN_TRANSACTION); |
66aa6f7f | 467 | assert(j->in_run_queue); |
5cb5a6ff | 468 | |
71fda00f | 469 | LIST_REMOVE(run_queue, j->manager->run_queue, j); |
66aa6f7f | 470 | j->in_run_queue = false; |
5cb5a6ff LP |
471 | |
472 | if (j->state != JOB_WAITING) | |
473 | return 0; | |
474 | ||
034c6ed7 LP |
475 | if (!job_is_runnable(j)) |
476 | return -EAGAIN; | |
477 | ||
83c60c9f | 478 | j->state = JOB_RUNNING; |
637f8b8e | 479 | m->n_running_jobs++; |
c1e1601e | 480 | job_add_to_dbus_queue(j); |
83c60c9f | 481 | |
2cf19a7a LP |
482 | /* While we execute this operation the job might go away (for |
483 | * example: because it is replaced by a new, conflicting | |
484 | * job.) To make sure we don't access a freed job later on we | |
485 | * store the id here, so that we can verify the job is still | |
486 | * valid. */ | |
487 | id = j->id; | |
2cf19a7a | 488 | |
5cb5a6ff LP |
489 | switch (j->type) { |
490 | ||
491 | case JOB_START: | |
87f0e418 | 492 | r = unit_start(j->unit); |
57339f47 | 493 | |
dd17d388 | 494 | /* If this unit cannot be started, then simply wait */ |
5cb5a6ff LP |
495 | if (r == -EBADR) |
496 | r = 0; | |
497 | break; | |
498 | ||
499 | case JOB_VERIFY_ACTIVE: { | |
87f0e418 LP |
500 | UnitActiveState t = unit_active_state(j->unit); |
501 | if (UNIT_IS_ACTIVE_OR_RELOADING(t)) | |
5cb5a6ff | 502 | r = -EALREADY; |
87f0e418 | 503 | else if (t == UNIT_ACTIVATING) |
5cb5a6ff LP |
504 | r = -EAGAIN; |
505 | else | |
506 | r = -ENOEXEC; | |
507 | break; | |
508 | } | |
509 | ||
510 | case JOB_STOP: | |
dd17d388 | 511 | case JOB_RESTART: |
87f0e418 | 512 | r = unit_stop(j->unit); |
57339f47 | 513 | |
dd17d388 | 514 | /* If this unit cannot stopped, then simply wait. */ |
57339f47 LP |
515 | if (r == -EBADR) |
516 | r = 0; | |
5cb5a6ff LP |
517 | break; |
518 | ||
519 | case JOB_RELOAD: | |
87f0e418 | 520 | r = unit_reload(j->unit); |
5cb5a6ff LP |
521 | break; |
522 | ||
e0209d83 MS |
523 | case JOB_NOP: |
524 | r = -EALREADY; | |
525 | break; | |
526 | ||
5cb5a6ff | 527 | default: |
44d8db9e | 528 | assert_not_reached("Unknown job type"); |
5cb5a6ff LP |
529 | } |
530 | ||
e0209d83 MS |
531 | j = manager_get_job(m, id); |
532 | if (j) { | |
2cf19a7a | 533 | if (r == -EALREADY) |
5273510e | 534 | r = job_finish_and_invalidate(j, JOB_DONE, true); |
d68201e9 | 535 | else if (r == -ENOEXEC) |
5273510e | 536 | r = job_finish_and_invalidate(j, JOB_SKIPPED, true); |
637f8b8e | 537 | else if (r == -EAGAIN) { |
2cf19a7a | 538 | j->state = JOB_WAITING; |
637f8b8e MS |
539 | m->n_running_jobs--; |
540 | } else if (r < 0) | |
5273510e | 541 | r = job_finish_and_invalidate(j, JOB_FAILED, true); |
2cf19a7a | 542 | } |
5cb5a6ff LP |
543 | |
544 | return r; | |
545 | } | |
546 | ||
44a6b1b6 | 547 | _pure_ static const char *job_get_status_message_format(Unit *u, JobType t, JobResult result) { |
c6918296 | 548 | const UnitStatusMessageFormats *format_table; |
877d54e9 LP |
549 | |
550 | assert(u); | |
551 | assert(t >= 0); | |
552 | assert(t < _JOB_TYPE_MAX); | |
c6918296 MS |
553 | |
554 | format_table = &UNIT_VTABLE(u)->status_message_formats; | |
555 | if (!format_table) | |
877d54e9 LP |
556 | return NULL; |
557 | ||
558 | if (t == JOB_START) | |
559 | return format_table->finished_start_job[result]; | |
560 | else if (t == JOB_STOP || t == JOB_RESTART) | |
561 | return format_table->finished_stop_job[result]; | |
562 | ||
563 | return NULL; | |
564 | } | |
e02cd6f7 | 565 | |
44a6b1b6 | 566 | _pure_ static const char *job_get_status_message_format_try_harder(Unit *u, JobType t, JobResult result) { |
877d54e9 LP |
567 | const char *format; |
568 | ||
569 | assert(u); | |
570 | assert(t >= 0); | |
571 | assert(t < _JOB_TYPE_MAX); | |
572 | ||
573 | format = job_get_status_message_format(u, t, result); | |
574 | if (format) | |
575 | return format; | |
576 | ||
577 | /* Return generic strings */ | |
e02cd6f7 | 578 | if (t == JOB_START) { |
877d54e9 LP |
579 | if (result == JOB_DONE) |
580 | return "Started %s."; | |
581 | else if (result == JOB_FAILED) | |
582 | return "Failed to start %s."; | |
583 | else if (result == JOB_DEPENDENCY) | |
584 | return "Dependency failed for %s."; | |
585 | else if (result == JOB_TIMEOUT) | |
586 | return "Timed out starting %s."; | |
587 | } else if (t == JOB_STOP || t == JOB_RESTART) { | |
588 | if (result == JOB_DONE) | |
589 | return "Stopped %s."; | |
590 | else if (result == JOB_FAILED) | |
591 | return "Stopped (with error) %s."; | |
592 | else if (result == JOB_TIMEOUT) | |
593 | return "Timed out stoppping %s."; | |
594 | } else if (t == JOB_RELOAD) { | |
595 | if (result == JOB_DONE) | |
596 | return "Reloaded %s."; | |
597 | else if (result == JOB_FAILED) | |
598 | return "Reload failed for %s."; | |
599 | else if (result == JOB_TIMEOUT) | |
600 | return "Timed out reloading %s."; | |
601 | } | |
602 | ||
603 | return NULL; | |
604 | } | |
605 | ||
606 | static void job_print_status_message(Unit *u, JobType t, JobResult result) { | |
607 | const char *format; | |
e02cd6f7 | 608 | |
877d54e9 LP |
609 | assert(u); |
610 | assert(t >= 0); | |
611 | assert(t < _JOB_TYPE_MAX); | |
612 | ||
613 | if (t == JOB_START) { | |
614 | format = job_get_status_message_format(u, t, result); | |
c6918296 MS |
615 | if (!format) |
616 | return; | |
617 | ||
e02cd6f7 LP |
618 | switch (result) { |
619 | ||
620 | case JOB_DONE: | |
69120666 | 621 | if (u->condition_result) |
076a24ad | 622 | unit_status_printf(u, ANSI_GREEN_ON " OK " ANSI_HIGHLIGHT_OFF, format); |
e02cd6f7 LP |
623 | break; |
624 | ||
625 | case JOB_FAILED: | |
49b1d377 | 626 | unit_status_printf(u, ANSI_HIGHLIGHT_RED_ON "FAILED" ANSI_HIGHLIGHT_OFF, format); |
984a2be4 | 627 | manager_status_printf(u->manager, false, NULL, "See 'systemctl status %s' for details.", u->id); |
e02cd6f7 LP |
628 | break; |
629 | ||
630 | case JOB_DEPENDENCY: | |
49b1d377 | 631 | unit_status_printf(u, ANSI_HIGHLIGHT_YELLOW_ON "DEPEND" ANSI_HIGHLIGHT_OFF, format); |
e02cd6f7 LP |
632 | break; |
633 | ||
634 | case JOB_TIMEOUT: | |
49b1d377 | 635 | unit_status_printf(u, ANSI_HIGHLIGHT_RED_ON " TIME " ANSI_HIGHLIGHT_OFF, format); |
e02cd6f7 LP |
636 | break; |
637 | ||
638 | default: | |
639 | ; | |
640 | } | |
641 | ||
1f136e7a | 642 | } else if (t == JOB_STOP || t == JOB_RESTART) { |
e02cd6f7 | 643 | |
877d54e9 | 644 | format = job_get_status_message_format(u, t, result); |
c6918296 MS |
645 | if (!format) |
646 | return; | |
647 | ||
e02cd6f7 LP |
648 | switch (result) { |
649 | ||
650 | case JOB_TIMEOUT: | |
49b1d377 | 651 | unit_status_printf(u, ANSI_HIGHLIGHT_RED_ON " TIME " ANSI_HIGHLIGHT_OFF, format); |
e02cd6f7 LP |
652 | break; |
653 | ||
654 | case JOB_DONE: | |
655 | case JOB_FAILED: | |
076a24ad | 656 | unit_status_printf(u, ANSI_GREEN_ON " OK " ANSI_HIGHLIGHT_OFF, format); |
e02cd6f7 LP |
657 | break; |
658 | ||
659 | default: | |
660 | ; | |
661 | } | |
7cf82e0b MS |
662 | |
663 | } else if (t == JOB_VERIFY_ACTIVE) { | |
664 | ||
665 | /* When verify-active detects the unit is inactive, report it. | |
666 | * Most likely a DEPEND warning from a requisiting unit will | |
667 | * occur next and it's nice to see what was requisited. */ | |
668 | if (result == JOB_SKIPPED) | |
49b1d377 | 669 | unit_status_printf(u, ANSI_HIGHLIGHT_ON " INFO " ANSI_HIGHLIGHT_OFF, "%s is not active."); |
e02cd6f7 LP |
670 | } |
671 | } | |
672 | ||
877d54e9 LP |
673 | #pragma GCC diagnostic push |
674 | #pragma GCC diagnostic ignored "-Wformat-nonliteral" | |
675 | static void job_log_status_message(Unit *u, JobType t, JobResult result) { | |
676 | const char *format; | |
677 | char buf[LINE_MAX]; | |
678 | ||
679 | assert(u); | |
680 | assert(t >= 0); | |
681 | assert(t < _JOB_TYPE_MAX); | |
682 | ||
81270860 LP |
683 | /* Skip this if it goes to the console. since we already print |
684 | * to the console anyway... */ | |
685 | ||
686 | if (log_on_console()) | |
687 | return; | |
688 | ||
877d54e9 LP |
689 | format = job_get_status_message_format_try_harder(u, t, result); |
690 | if (!format) | |
691 | return; | |
692 | ||
693 | snprintf(buf, sizeof(buf), format, unit_description(u)); | |
694 | char_array_0(buf); | |
695 | ||
696 | if (t == JOB_START) { | |
697 | sd_id128_t mid; | |
698 | ||
699 | mid = result == JOB_DONE ? SD_MESSAGE_UNIT_STARTED : SD_MESSAGE_UNIT_FAILED; | |
bbc9006e MT |
700 | log_struct_unit(result == JOB_DONE ? LOG_INFO : LOG_ERR, |
701 | u->id, | |
1ca6783f | 702 | MESSAGE_ID(mid), |
877d54e9 LP |
703 | "RESULT=%s", job_result_to_string(result), |
704 | "MESSAGE=%s", buf, | |
705 | NULL); | |
706 | ||
707 | } else if (t == JOB_STOP) | |
bbc9006e MT |
708 | log_struct_unit(result == JOB_DONE ? LOG_INFO : LOG_ERR, |
709 | u->id, | |
1ca6783f | 710 | MESSAGE_ID(SD_MESSAGE_UNIT_STOPPED), |
877d54e9 LP |
711 | "RESULT=%s", job_result_to_string(result), |
712 | "MESSAGE=%s", buf, | |
713 | NULL); | |
714 | ||
715 | else if (t == JOB_RELOAD) | |
bbc9006e MT |
716 | log_struct_unit(result == JOB_DONE ? LOG_INFO : LOG_ERR, |
717 | u->id, | |
1ca6783f | 718 | MESSAGE_ID(SD_MESSAGE_UNIT_RELOADED), |
877d54e9 LP |
719 | "RESULT=%s", job_result_to_string(result), |
720 | "MESSAGE=%s", buf, | |
721 | NULL); | |
722 | } | |
723 | #pragma GCC diagnostic pop | |
724 | ||
5273510e | 725 | int job_finish_and_invalidate(Job *j, JobResult result, bool recursive) { |
87f0e418 LP |
726 | Unit *u; |
727 | Unit *other; | |
b866264a | 728 | JobType t; |
034c6ed7 | 729 | Iterator i; |
5cb5a6ff LP |
730 | |
731 | assert(j); | |
ac1135be | 732 | assert(j->installed); |
e0209d83 | 733 | assert(j->type < _JOB_TYPE_MAX_IN_TRANSACTION); |
5cb5a6ff | 734 | |
c6918296 MS |
735 | u = j->unit; |
736 | t = j->type; | |
737 | ||
738 | j->result = result; | |
739 | ||
637f8b8e MS |
740 | if (j->state == JOB_RUNNING) |
741 | j->manager->n_running_jobs--; | |
742 | ||
66870f90 ZJS |
743 | log_debug_unit(u->id, "Job %s/%s finished, result=%s", |
744 | u->id, job_type_to_string(t), job_result_to_string(result)); | |
c6918296 MS |
745 | |
746 | job_print_status_message(u, t, result); | |
877d54e9 | 747 | job_log_status_message(u, t, result); |
c6918296 | 748 | |
c1e1601e | 749 | job_add_to_dbus_queue(j); |
f50e0a01 | 750 | |
034c6ed7 | 751 | /* Patch restart jobs so that they become normal start jobs */ |
c6918296 | 752 | if (result == JOB_DONE && t == JOB_RESTART) { |
f50e0a01 | 753 | |
bbd1a837 | 754 | job_change_type(j, JOB_START); |
9c2d9caa | 755 | j->state = JOB_WAITING; |
cc42e081 LP |
756 | |
757 | job_add_to_run_queue(j); | |
57981b98 | 758 | |
57981b98 | 759 | goto finish; |
5cb5a6ff LP |
760 | } |
761 | ||
5d44db4a | 762 | if (result == JOB_FAILED) |
76bf48b7 LP |
763 | j->manager->n_failed_jobs ++; |
764 | ||
97e7d748 | 765 | job_uninstall(j); |
5cb5a6ff LP |
766 | job_free(j); |
767 | ||
768 | /* Fail depending jobs on failure */ | |
5273510e | 769 | if (result != JOB_DONE && recursive) { |
5cb5a6ff LP |
770 | |
771 | if (t == JOB_START || | |
e0209d83 | 772 | t == JOB_VERIFY_ACTIVE) { |
5cb5a6ff | 773 | |
ac155bb8 MS |
774 | SET_FOREACH(other, u->dependencies[UNIT_REQUIRED_BY], i) |
775 | if (other->job && | |
776 | (other->job->type == JOB_START || | |
e0209d83 | 777 | other->job->type == JOB_VERIFY_ACTIVE)) |
5273510e | 778 | job_finish_and_invalidate(other->job, JOB_DEPENDENCY, true); |
5cb5a6ff | 779 | |
ac155bb8 MS |
780 | SET_FOREACH(other, u->dependencies[UNIT_BOUND_BY], i) |
781 | if (other->job && | |
782 | (other->job->type == JOB_START || | |
e0209d83 | 783 | other->job->type == JOB_VERIFY_ACTIVE)) |
5273510e | 784 | job_finish_and_invalidate(other->job, JOB_DEPENDENCY, true); |
e6a3ff95 | 785 | |
ac155bb8 MS |
786 | SET_FOREACH(other, u->dependencies[UNIT_REQUIRED_BY_OVERRIDABLE], i) |
787 | if (other->job && | |
788 | !other->job->override && | |
789 | (other->job->type == JOB_START || | |
e0209d83 | 790 | other->job->type == JOB_VERIFY_ACTIVE)) |
5273510e | 791 | job_finish_and_invalidate(other->job, JOB_DEPENDENCY, true); |
5cb5a6ff LP |
792 | |
793 | } else if (t == JOB_STOP) { | |
794 | ||
ac155bb8 MS |
795 | SET_FOREACH(other, u->dependencies[UNIT_CONFLICTED_BY], i) |
796 | if (other->job && | |
797 | (other->job->type == JOB_START || | |
e0209d83 | 798 | other->job->type == JOB_VERIFY_ACTIVE)) |
5273510e | 799 | job_finish_and_invalidate(other->job, JOB_DEPENDENCY, true); |
5cb5a6ff LP |
800 | } |
801 | } | |
802 | ||
c0daa706 | 803 | /* Trigger OnFailure dependencies that are not generated by |
66870f90 | 804 | * the unit itself. We don't treat JOB_CANCELED as failure in |
c0daa706 LP |
805 | * this context. And JOB_FAILURE is already handled by the |
806 | * unit itself. */ | |
222ae6a8 | 807 | if (result == JOB_TIMEOUT || result == JOB_DEPENDENCY) { |
bbc9006e MT |
808 | log_struct_unit(LOG_NOTICE, |
809 | u->id, | |
66870f90 | 810 | "JOB_TYPE=%s", job_type_to_string(t), |
38c888a4 | 811 | "JOB_RESULT=%s", job_result_to_string(result), |
66870f90 | 812 | "Job %s/%s failed with result '%s'.", |
ac155bb8 | 813 | u->id, |
222ae6a8 | 814 | job_type_to_string(t), |
66870f90 ZJS |
815 | job_result_to_string(result), |
816 | NULL); | |
222ae6a8 | 817 | |
3ecaa09b | 818 | unit_start_on_failure(u); |
222ae6a8 | 819 | } |
c0daa706 | 820 | |
3ecaa09b LP |
821 | unit_trigger_notify(u); |
822 | ||
57981b98 | 823 | finish: |
5cb5a6ff | 824 | /* Try to start the next jobs that can be started */ |
ac155bb8 MS |
825 | SET_FOREACH(other, u->dependencies[UNIT_AFTER], i) |
826 | if (other->job) | |
827 | job_add_to_run_queue(other->job); | |
828 | SET_FOREACH(other, u->dependencies[UNIT_BEFORE], i) | |
829 | if (other->job) | |
830 | job_add_to_run_queue(other->job); | |
5cb5a6ff | 831 | |
ac155bb8 | 832 | manager_check_finished(u->manager); |
b0c918b9 | 833 | |
5273510e | 834 | return 0; |
5cb5a6ff | 835 | } |
034c6ed7 | 836 | |
718db961 LP |
837 | static int job_dispatch_timer(sd_event_source *s, uint64_t monotonic, void *userdata) { |
838 | Job *j = userdata; | |
faf919f1 | 839 | |
718db961 LP |
840 | assert(j); |
841 | assert(s == j->timer_event_source); | |
faf919f1 | 842 | |
718db961 LP |
843 | log_warning_unit(j->unit->id, "Job %s/%s timed out.", |
844 | j->unit->id, job_type_to_string(j->type)); | |
faf919f1 | 845 | |
718db961 LP |
846 | job_finish_and_invalidate(j, JOB_TIMEOUT, true); |
847 | return 0; | |
848 | } | |
faf919f1 | 849 | |
718db961 LP |
850 | int job_start_timer(Job *j) { |
851 | int r; | |
faf919f1 | 852 | |
718db961 LP |
853 | if (j->unit->job_timeout <= 0 || j->timer_event_source) |
854 | return 0; | |
faf919f1 | 855 | |
718db961 | 856 | j->begin_usec = now(CLOCK_MONOTONIC); |
faf919f1 | 857 | |
718db961 LP |
858 | r = sd_event_add_monotonic(j->manager->event, j->begin_usec + j->unit->job_timeout, 0, job_dispatch_timer, j, &j->timer_event_source); |
859 | if (r < 0) | |
860 | return r; | |
faf919f1 | 861 | |
718db961 | 862 | return 0; |
faf919f1 LP |
863 | } |
864 | ||
c1e1601e | 865 | void job_add_to_run_queue(Job *j) { |
034c6ed7 | 866 | assert(j); |
ac1135be | 867 | assert(j->installed); |
034c6ed7 LP |
868 | |
869 | if (j->in_run_queue) | |
870 | return; | |
871 | ||
71fda00f | 872 | LIST_PREPEND(run_queue, j->manager->run_queue, j); |
034c6ed7 LP |
873 | j->in_run_queue = true; |
874 | } | |
94f04347 | 875 | |
c1e1601e LP |
876 | void job_add_to_dbus_queue(Job *j) { |
877 | assert(j); | |
878 | assert(j->installed); | |
879 | ||
880 | if (j->in_dbus_queue) | |
881 | return; | |
882 | ||
a567261a LP |
883 | /* We don't check if anybody is subscribed here, since this |
884 | * job might just have been created and not yet assigned to a | |
885 | * connection/client. */ | |
94b6dfa2 | 886 | |
71fda00f | 887 | LIST_PREPEND(dbus_queue, j->manager->dbus_job_queue, j); |
c1e1601e LP |
888 | j->in_dbus_queue = true; |
889 | } | |
890 | ||
ea430986 LP |
891 | char *job_dbus_path(Job *j) { |
892 | char *p; | |
893 | ||
894 | assert(j); | |
895 | ||
896 | if (asprintf(&p, "/org/freedesktop/systemd1/job/%lu", (unsigned long) j->id) < 0) | |
897 | return NULL; | |
898 | ||
899 | return p; | |
900 | } | |
901 | ||
39a18c60 MS |
902 | int job_serialize(Job *j, FILE *f, FDSet *fds) { |
903 | fprintf(f, "job-id=%u\n", j->id); | |
904 | fprintf(f, "job-type=%s\n", job_type_to_string(j->type)); | |
905 | fprintf(f, "job-state=%s\n", job_state_to_string(j->state)); | |
906 | fprintf(f, "job-override=%s\n", yes_no(j->override)); | |
23ade460 | 907 | fprintf(f, "job-irreversible=%s\n", yes_no(j->irreversible)); |
39a18c60 MS |
908 | fprintf(f, "job-sent-dbus-new-signal=%s\n", yes_no(j->sent_dbus_new_signal)); |
909 | fprintf(f, "job-ignore-order=%s\n", yes_no(j->ignore_order)); | |
718db961 LP |
910 | |
911 | if (j->begin_usec > 0) | |
912 | fprintf(f, "job-begin=%llu", (unsigned long long) j->begin_usec); | |
913 | ||
914 | bus_client_track_serialize(j->manager, f, j->subscribed); | |
39a18c60 MS |
915 | |
916 | /* End marker */ | |
917 | fputc('\n', f); | |
918 | return 0; | |
919 | } | |
920 | ||
921 | int job_deserialize(Job *j, FILE *f, FDSet *fds) { | |
718db961 LP |
922 | assert(j); |
923 | ||
39a18c60 MS |
924 | for (;;) { |
925 | char line[LINE_MAX], *l, *v; | |
926 | size_t k; | |
927 | ||
928 | if (!fgets(line, sizeof(line), f)) { | |
929 | if (feof(f)) | |
930 | return 0; | |
931 | return -errno; | |
932 | } | |
933 | ||
934 | char_array_0(line); | |
935 | l = strstrip(line); | |
936 | ||
937 | /* End marker */ | |
938 | if (l[0] == 0) | |
939 | return 0; | |
940 | ||
941 | k = strcspn(l, "="); | |
942 | ||
943 | if (l[k] == '=') { | |
944 | l[k] = 0; | |
945 | v = l+k+1; | |
946 | } else | |
947 | v = l+k; | |
948 | ||
949 | if (streq(l, "job-id")) { | |
718db961 | 950 | |
39a18c60 MS |
951 | if (safe_atou32(v, &j->id) < 0) |
952 | log_debug("Failed to parse job id value %s", v); | |
718db961 | 953 | |
39a18c60 | 954 | } else if (streq(l, "job-type")) { |
718db961 LP |
955 | JobType t; |
956 | ||
957 | t = job_type_from_string(v); | |
39a18c60 MS |
958 | if (t < 0) |
959 | log_debug("Failed to parse job type %s", v); | |
e0209d83 MS |
960 | else if (t >= _JOB_TYPE_MAX_IN_TRANSACTION) |
961 | log_debug("Cannot deserialize job of type %s", v); | |
39a18c60 MS |
962 | else |
963 | j->type = t; | |
718db961 | 964 | |
39a18c60 | 965 | } else if (streq(l, "job-state")) { |
718db961 LP |
966 | JobState s; |
967 | ||
968 | s = job_state_from_string(v); | |
39a18c60 MS |
969 | if (s < 0) |
970 | log_debug("Failed to parse job state %s", v); | |
971 | else | |
972 | j->state = s; | |
718db961 | 973 | |
39a18c60 | 974 | } else if (streq(l, "job-override")) { |
718db961 LP |
975 | int b; |
976 | ||
977 | b = parse_boolean(v); | |
39a18c60 MS |
978 | if (b < 0) |
979 | log_debug("Failed to parse job override flag %s", v); | |
980 | else | |
981 | j->override = j->override || b; | |
718db961 | 982 | |
23ade460 | 983 | } else if (streq(l, "job-irreversible")) { |
718db961 LP |
984 | int b; |
985 | ||
986 | b = parse_boolean(v); | |
23ade460 MS |
987 | if (b < 0) |
988 | log_debug("Failed to parse job irreversible flag %s", v); | |
989 | else | |
990 | j->irreversible = j->irreversible || b; | |
718db961 | 991 | |
39a18c60 | 992 | } else if (streq(l, "job-sent-dbus-new-signal")) { |
718db961 LP |
993 | int b; |
994 | ||
995 | b = parse_boolean(v); | |
39a18c60 MS |
996 | if (b < 0) |
997 | log_debug("Failed to parse job sent_dbus_new_signal flag %s", v); | |
998 | else | |
999 | j->sent_dbus_new_signal = j->sent_dbus_new_signal || b; | |
718db961 | 1000 | |
39a18c60 | 1001 | } else if (streq(l, "job-ignore-order")) { |
718db961 LP |
1002 | int b; |
1003 | ||
1004 | b = parse_boolean(v); | |
39a18c60 MS |
1005 | if (b < 0) |
1006 | log_debug("Failed to parse job ignore_order flag %s", v); | |
1007 | else | |
1008 | j->ignore_order = j->ignore_order || b; | |
718db961 LP |
1009 | |
1010 | } else if (streq(l, "job-begin")) { | |
1011 | unsigned long long ull; | |
1012 | ||
1013 | if (sscanf(v, "%llu", &ull) != 1) | |
1014 | log_debug("Failed to parse job-begin value %s", v); | |
39a18c60 | 1015 | else |
718db961 LP |
1016 | j->begin_usec = ull; |
1017 | ||
1018 | } else { | |
1019 | char t[strlen(l) + 1 + strlen(v) + 1]; | |
1020 | ||
1021 | strcpy(stpcpy(stpcpy(t, l), "="), v); | |
1022 | ||
1023 | if (bus_client_track_deserialize_item(j->manager, &j->subscribed, t) == 0) | |
1024 | log_debug("Unknown deserialization key '%s'", l); | |
39a18c60 MS |
1025 | } |
1026 | } | |
1027 | } | |
1028 | ||
1029 | int job_coldplug(Job *j) { | |
718db961 LP |
1030 | int r; |
1031 | ||
1032 | assert(j); | |
39a18c60 | 1033 | |
718db961 | 1034 | if (j->begin_usec <= 0) |
39a18c60 MS |
1035 | return 0; |
1036 | ||
718db961 LP |
1037 | if (j->timer_event_source) |
1038 | j->timer_event_source = sd_event_source_unref(j->timer_event_source); | |
39a18c60 | 1039 | |
718db961 LP |
1040 | r = sd_event_add_monotonic(j->manager->event, j->begin_usec + j->unit->job_timeout, 0, job_dispatch_timer, j, &j->timer_event_source); |
1041 | if (r < 0) | |
1042 | log_debug("Failed to restart timeout for job: %s", strerror(-r)); | |
1043 | ||
1044 | return r; | |
39a18c60 MS |
1045 | } |
1046 | ||
c65eb836 LP |
1047 | void job_shutdown_magic(Job *j) { |
1048 | assert(j); | |
1049 | ||
1050 | /* The shutdown target gets some special treatment here: we | |
1051 | * tell the kernel to begin with flushing its disk caches, to | |
1052 | * optimize shutdown time a bit. Ideally we wouldn't hardcode | |
1053 | * this magic into PID 1. However all other processes aren't | |
1054 | * options either since they'd exit much sooner than PID 1 and | |
1055 | * asynchronous sync() would cause their exit to be | |
1056 | * delayed. */ | |
1057 | ||
c2756a68 | 1058 | if (j->type != JOB_START) |
c65eb836 LP |
1059 | return; |
1060 | ||
c2756a68 LP |
1061 | if (j->unit->manager->running_as != SYSTEMD_SYSTEM) |
1062 | return; | |
1063 | ||
1064 | if (!unit_has_name(j->unit, SPECIAL_SHUTDOWN_TARGET)) | |
c65eb836 LP |
1065 | return; |
1066 | ||
5b1869ea OB |
1067 | /* In case messages on console has been disabled on boot */ |
1068 | j->unit->manager->no_console_output = false; | |
1069 | ||
c65eb836 LP |
1070 | if (detect_container(NULL) > 0) |
1071 | return; | |
1072 | ||
1073 | asynchronous_sync(); | |
1074 | } | |
1075 | ||
94f04347 LP |
1076 | static const char* const job_state_table[_JOB_STATE_MAX] = { |
1077 | [JOB_WAITING] = "waiting", | |
1078 | [JOB_RUNNING] = "running" | |
1079 | }; | |
1080 | ||
1081 | DEFINE_STRING_TABLE_LOOKUP(job_state, JobState); | |
1082 | ||
1083 | static const char* const job_type_table[_JOB_TYPE_MAX] = { | |
1084 | [JOB_START] = "start", | |
1085 | [JOB_VERIFY_ACTIVE] = "verify-active", | |
1086 | [JOB_STOP] = "stop", | |
1087 | [JOB_RELOAD] = "reload", | |
1088 | [JOB_RELOAD_OR_START] = "reload-or-start", | |
1089 | [JOB_RESTART] = "restart", | |
1090 | [JOB_TRY_RESTART] = "try-restart", | |
e0209d83 | 1091 | [JOB_NOP] = "nop", |
94f04347 LP |
1092 | }; |
1093 | ||
1094 | DEFINE_STRING_TABLE_LOOKUP(job_type, JobType); | |
b548631a LP |
1095 | |
1096 | static const char* const job_mode_table[_JOB_MODE_MAX] = { | |
1097 | [JOB_FAIL] = "fail", | |
c497c7a9 | 1098 | [JOB_REPLACE] = "replace", |
23ade460 | 1099 | [JOB_REPLACE_IRREVERSIBLY] = "replace-irreversibly", |
e67c3609 | 1100 | [JOB_ISOLATE] = "isolate", |
cebe0d41 LP |
1101 | [JOB_IGNORE_DEPENDENCIES] = "ignore-dependencies", |
1102 | [JOB_IGNORE_REQUIREMENTS] = "ignore-requirements" | |
b548631a LP |
1103 | }; |
1104 | ||
1105 | DEFINE_STRING_TABLE_LOOKUP(job_mode, JobMode); | |
5d44db4a LP |
1106 | |
1107 | static const char* const job_result_table[_JOB_RESULT_MAX] = { | |
1108 | [JOB_DONE] = "done", | |
1109 | [JOB_CANCELED] = "canceled", | |
1110 | [JOB_TIMEOUT] = "timeout", | |
1111 | [JOB_FAILED] = "failed", | |
d68201e9 LP |
1112 | [JOB_DEPENDENCY] = "dependency", |
1113 | [JOB_SKIPPED] = "skipped" | |
5d44db4a LP |
1114 | }; |
1115 | ||
1116 | DEFINE_STRING_TABLE_LOOKUP(job_result, JobResult); |