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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 | ||
66ca4ec4 LP |
406 | /* Note that unit types have a say in what is runnable, |
407 | * too. For example, if they return -EAGAIN from | |
408 | * unit_start() they can indicate they are not | |
409 | * runnable yet. */ | |
410 | ||
e67c3609 | 411 | /* First check if there is an override */ |
cebe0d41 | 412 | if (j->ignore_order) |
e67c3609 | 413 | return true; |
5cb5a6ff | 414 | |
e0209d83 MS |
415 | if (j->type == JOB_NOP) |
416 | return true; | |
417 | ||
5cb5a6ff LP |
418 | if (j->type == JOB_START || |
419 | j->type == JOB_VERIFY_ACTIVE || | |
e0209d83 | 420 | j->type == JOB_RELOAD) { |
5cb5a6ff LP |
421 | |
422 | /* Immediate result is that the job is or might be | |
423 | * started. In this case lets wait for the | |
424 | * dependencies, regardless whether they are | |
425 | * starting or stopping something. */ | |
426 | ||
ac155bb8 MS |
427 | SET_FOREACH(other, j->unit->dependencies[UNIT_AFTER], i) |
428 | if (other->job) | |
5cb5a6ff LP |
429 | return false; |
430 | } | |
431 | ||
432 | /* Also, if something else is being stopped and we should | |
433 | * change state after it, then lets wait. */ | |
434 | ||
ac155bb8 MS |
435 | SET_FOREACH(other, j->unit->dependencies[UNIT_BEFORE], i) |
436 | if (other->job && | |
437 | (other->job->type == JOB_STOP || | |
e0209d83 | 438 | other->job->type == JOB_RESTART)) |
5cb5a6ff LP |
439 | return false; |
440 | ||
441 | /* This means that for a service a and a service b where b | |
442 | * shall be started after a: | |
443 | * | |
444 | * start a + start b → 1st step start a, 2nd step start b | |
445 | * start a + stop b → 1st step stop b, 2nd step start a | |
446 | * stop a + start b → 1st step stop a, 2nd step start b | |
447 | * stop a + stop b → 1st step stop b, 2nd step stop a | |
448 | * | |
449 | * This has the side effect that restarts are properly | |
450 | * synchronized too. */ | |
451 | ||
452 | return true; | |
453 | } | |
454 | ||
bbd1a837 | 455 | static void job_change_type(Job *j, JobType newtype) { |
66870f90 ZJS |
456 | log_debug_unit(j->unit->id, |
457 | "Converting job %s/%s -> %s/%s", | |
458 | j->unit->id, job_type_to_string(j->type), | |
459 | j->unit->id, job_type_to_string(newtype)); | |
bbd1a837 MS |
460 | |
461 | j->type = newtype; | |
462 | } | |
463 | ||
5cb5a6ff LP |
464 | int job_run_and_invalidate(Job *j) { |
465 | int r; | |
2cf19a7a | 466 | uint32_t id; |
637f8b8e | 467 | Manager *m = j->manager; |
ac1135be | 468 | |
5cb5a6ff | 469 | assert(j); |
ac1135be | 470 | assert(j->installed); |
e0209d83 | 471 | assert(j->type < _JOB_TYPE_MAX_IN_TRANSACTION); |
66aa6f7f | 472 | assert(j->in_run_queue); |
5cb5a6ff | 473 | |
71fda00f | 474 | LIST_REMOVE(run_queue, j->manager->run_queue, j); |
66aa6f7f | 475 | j->in_run_queue = false; |
5cb5a6ff LP |
476 | |
477 | if (j->state != JOB_WAITING) | |
478 | return 0; | |
479 | ||
034c6ed7 LP |
480 | if (!job_is_runnable(j)) |
481 | return -EAGAIN; | |
482 | ||
83c60c9f | 483 | j->state = JOB_RUNNING; |
637f8b8e | 484 | m->n_running_jobs++; |
c1e1601e | 485 | job_add_to_dbus_queue(j); |
83c60c9f | 486 | |
2cf19a7a LP |
487 | /* While we execute this operation the job might go away (for |
488 | * example: because it is replaced by a new, conflicting | |
489 | * job.) To make sure we don't access a freed job later on we | |
490 | * store the id here, so that we can verify the job is still | |
491 | * valid. */ | |
492 | id = j->id; | |
2cf19a7a | 493 | |
5cb5a6ff LP |
494 | switch (j->type) { |
495 | ||
496 | case JOB_START: | |
87f0e418 | 497 | r = unit_start(j->unit); |
57339f47 | 498 | |
dd17d388 | 499 | /* If this unit cannot be started, then simply wait */ |
5cb5a6ff LP |
500 | if (r == -EBADR) |
501 | r = 0; | |
502 | break; | |
503 | ||
504 | case JOB_VERIFY_ACTIVE: { | |
87f0e418 LP |
505 | UnitActiveState t = unit_active_state(j->unit); |
506 | if (UNIT_IS_ACTIVE_OR_RELOADING(t)) | |
5cb5a6ff | 507 | r = -EALREADY; |
87f0e418 | 508 | else if (t == UNIT_ACTIVATING) |
5cb5a6ff LP |
509 | r = -EAGAIN; |
510 | else | |
6a371e23 | 511 | r = -EBADR; |
5cb5a6ff LP |
512 | break; |
513 | } | |
514 | ||
515 | case JOB_STOP: | |
dd17d388 | 516 | case JOB_RESTART: |
87f0e418 | 517 | r = unit_stop(j->unit); |
57339f47 | 518 | |
dd17d388 | 519 | /* If this unit cannot stopped, then simply wait. */ |
57339f47 LP |
520 | if (r == -EBADR) |
521 | r = 0; | |
5cb5a6ff LP |
522 | break; |
523 | ||
524 | case JOB_RELOAD: | |
87f0e418 | 525 | r = unit_reload(j->unit); |
5cb5a6ff LP |
526 | break; |
527 | ||
e0209d83 MS |
528 | case JOB_NOP: |
529 | r = -EALREADY; | |
530 | break; | |
531 | ||
5cb5a6ff | 532 | default: |
44d8db9e | 533 | assert_not_reached("Unknown job type"); |
5cb5a6ff LP |
534 | } |
535 | ||
e0209d83 MS |
536 | j = manager_get_job(m, id); |
537 | if (j) { | |
2cf19a7a | 538 | if (r == -EALREADY) |
5273510e | 539 | r = job_finish_and_invalidate(j, JOB_DONE, true); |
6a371e23 | 540 | else if (r == -EBADR) |
5273510e | 541 | r = job_finish_and_invalidate(j, JOB_SKIPPED, true); |
6a371e23 ZJS |
542 | else if (r == -ENOEXEC) |
543 | r = job_finish_and_invalidate(j, JOB_INVALID, true); | |
637f8b8e | 544 | else if (r == -EAGAIN) { |
2cf19a7a | 545 | j->state = JOB_WAITING; |
637f8b8e MS |
546 | m->n_running_jobs--; |
547 | } else if (r < 0) | |
5273510e | 548 | r = job_finish_and_invalidate(j, JOB_FAILED, true); |
2cf19a7a | 549 | } |
5cb5a6ff LP |
550 | |
551 | return r; | |
552 | } | |
553 | ||
44a6b1b6 | 554 | _pure_ static const char *job_get_status_message_format(Unit *u, JobType t, JobResult result) { |
c6918296 | 555 | const UnitStatusMessageFormats *format_table; |
877d54e9 LP |
556 | |
557 | assert(u); | |
558 | assert(t >= 0); | |
559 | assert(t < _JOB_TYPE_MAX); | |
c6918296 MS |
560 | |
561 | format_table = &UNIT_VTABLE(u)->status_message_formats; | |
562 | if (!format_table) | |
877d54e9 LP |
563 | return NULL; |
564 | ||
565 | if (t == JOB_START) | |
566 | return format_table->finished_start_job[result]; | |
567 | else if (t == JOB_STOP || t == JOB_RESTART) | |
568 | return format_table->finished_stop_job[result]; | |
569 | ||
570 | return NULL; | |
571 | } | |
e02cd6f7 | 572 | |
44a6b1b6 | 573 | _pure_ static const char *job_get_status_message_format_try_harder(Unit *u, JobType t, JobResult result) { |
877d54e9 LP |
574 | const char *format; |
575 | ||
576 | assert(u); | |
577 | assert(t >= 0); | |
578 | assert(t < _JOB_TYPE_MAX); | |
579 | ||
580 | format = job_get_status_message_format(u, t, result); | |
581 | if (format) | |
582 | return format; | |
583 | ||
584 | /* Return generic strings */ | |
e02cd6f7 | 585 | if (t == JOB_START) { |
877d54e9 LP |
586 | if (result == JOB_DONE) |
587 | return "Started %s."; | |
588 | else if (result == JOB_FAILED) | |
589 | return "Failed to start %s."; | |
590 | else if (result == JOB_DEPENDENCY) | |
591 | return "Dependency failed for %s."; | |
592 | else if (result == JOB_TIMEOUT) | |
593 | return "Timed out starting %s."; | |
594 | } else if (t == JOB_STOP || t == JOB_RESTART) { | |
595 | if (result == JOB_DONE) | |
596 | return "Stopped %s."; | |
597 | else if (result == JOB_FAILED) | |
598 | return "Stopped (with error) %s."; | |
599 | else if (result == JOB_TIMEOUT) | |
600 | return "Timed out stoppping %s."; | |
601 | } else if (t == JOB_RELOAD) { | |
602 | if (result == JOB_DONE) | |
603 | return "Reloaded %s."; | |
604 | else if (result == JOB_FAILED) | |
605 | return "Reload failed for %s."; | |
606 | else if (result == JOB_TIMEOUT) | |
607 | return "Timed out reloading %s."; | |
608 | } | |
609 | ||
610 | return NULL; | |
611 | } | |
612 | ||
9091e686 TA |
613 | #pragma GCC diagnostic push |
614 | #pragma GCC diagnostic ignored "-Wformat-nonliteral" | |
877d54e9 LP |
615 | static void job_print_status_message(Unit *u, JobType t, JobResult result) { |
616 | const char *format; | |
e02cd6f7 | 617 | |
877d54e9 LP |
618 | assert(u); |
619 | assert(t >= 0); | |
620 | assert(t < _JOB_TYPE_MAX); | |
621 | ||
622 | if (t == JOB_START) { | |
623 | format = job_get_status_message_format(u, t, result); | |
c6918296 MS |
624 | if (!format) |
625 | return; | |
626 | ||
e02cd6f7 LP |
627 | switch (result) { |
628 | ||
629 | case JOB_DONE: | |
69120666 | 630 | if (u->condition_result) |
076a24ad | 631 | unit_status_printf(u, ANSI_GREEN_ON " OK " ANSI_HIGHLIGHT_OFF, format); |
e02cd6f7 LP |
632 | break; |
633 | ||
634 | case JOB_FAILED: | |
cb8ccb22 | 635 | manager_flip_auto_status(u->manager, true); |
49b1d377 | 636 | unit_status_printf(u, ANSI_HIGHLIGHT_RED_ON "FAILED" ANSI_HIGHLIGHT_OFF, format); |
984a2be4 | 637 | manager_status_printf(u->manager, false, NULL, "See 'systemctl status %s' for details.", u->id); |
e02cd6f7 LP |
638 | break; |
639 | ||
640 | case JOB_DEPENDENCY: | |
cb8ccb22 | 641 | manager_flip_auto_status(u->manager, true); |
49b1d377 | 642 | unit_status_printf(u, ANSI_HIGHLIGHT_YELLOW_ON "DEPEND" ANSI_HIGHLIGHT_OFF, format); |
e02cd6f7 LP |
643 | break; |
644 | ||
645 | case JOB_TIMEOUT: | |
cb8ccb22 | 646 | manager_flip_auto_status(u->manager, true); |
49b1d377 | 647 | unit_status_printf(u, ANSI_HIGHLIGHT_RED_ON " TIME " ANSI_HIGHLIGHT_OFF, format); |
e02cd6f7 LP |
648 | break; |
649 | ||
650 | default: | |
651 | ; | |
652 | } | |
653 | ||
1f136e7a | 654 | } else if (t == JOB_STOP || t == JOB_RESTART) { |
e02cd6f7 | 655 | |
877d54e9 | 656 | format = job_get_status_message_format(u, t, result); |
c6918296 MS |
657 | if (!format) |
658 | return; | |
659 | ||
e02cd6f7 LP |
660 | switch (result) { |
661 | ||
662 | case JOB_TIMEOUT: | |
cb8ccb22 | 663 | manager_flip_auto_status(u->manager, true); |
49b1d377 | 664 | unit_status_printf(u, ANSI_HIGHLIGHT_RED_ON " TIME " ANSI_HIGHLIGHT_OFF, format); |
e02cd6f7 LP |
665 | break; |
666 | ||
667 | case JOB_DONE: | |
668 | case JOB_FAILED: | |
076a24ad | 669 | unit_status_printf(u, ANSI_GREEN_ON " OK " ANSI_HIGHLIGHT_OFF, format); |
e02cd6f7 LP |
670 | break; |
671 | ||
672 | default: | |
673 | ; | |
674 | } | |
7cf82e0b MS |
675 | |
676 | } else if (t == JOB_VERIFY_ACTIVE) { | |
677 | ||
678 | /* When verify-active detects the unit is inactive, report it. | |
679 | * Most likely a DEPEND warning from a requisiting unit will | |
680 | * occur next and it's nice to see what was requisited. */ | |
681 | if (result == JOB_SKIPPED) | |
49b1d377 | 682 | unit_status_printf(u, ANSI_HIGHLIGHT_ON " INFO " ANSI_HIGHLIGHT_OFF, "%s is not active."); |
e02cd6f7 LP |
683 | } |
684 | } | |
9091e686 | 685 | #pragma GCC diagnostic pop |
e02cd6f7 | 686 | |
877d54e9 LP |
687 | #pragma GCC diagnostic push |
688 | #pragma GCC diagnostic ignored "-Wformat-nonliteral" | |
689 | static void job_log_status_message(Unit *u, JobType t, JobResult result) { | |
690 | const char *format; | |
691 | char buf[LINE_MAX]; | |
692 | ||
693 | assert(u); | |
694 | assert(t >= 0); | |
695 | assert(t < _JOB_TYPE_MAX); | |
696 | ||
81270860 LP |
697 | /* Skip this if it goes to the console. since we already print |
698 | * to the console anyway... */ | |
699 | ||
700 | if (log_on_console()) | |
701 | return; | |
702 | ||
877d54e9 LP |
703 | format = job_get_status_message_format_try_harder(u, t, result); |
704 | if (!format) | |
705 | return; | |
706 | ||
707 | snprintf(buf, sizeof(buf), format, unit_description(u)); | |
708 | char_array_0(buf); | |
709 | ||
710 | if (t == JOB_START) { | |
711 | sd_id128_t mid; | |
712 | ||
713 | mid = result == JOB_DONE ? SD_MESSAGE_UNIT_STARTED : SD_MESSAGE_UNIT_FAILED; | |
bbc9006e MT |
714 | log_struct_unit(result == JOB_DONE ? LOG_INFO : LOG_ERR, |
715 | u->id, | |
1ca6783f | 716 | MESSAGE_ID(mid), |
877d54e9 LP |
717 | "RESULT=%s", job_result_to_string(result), |
718 | "MESSAGE=%s", buf, | |
719 | NULL); | |
720 | ||
721 | } else if (t == JOB_STOP) | |
bbc9006e MT |
722 | log_struct_unit(result == JOB_DONE ? LOG_INFO : LOG_ERR, |
723 | u->id, | |
1ca6783f | 724 | MESSAGE_ID(SD_MESSAGE_UNIT_STOPPED), |
877d54e9 LP |
725 | "RESULT=%s", job_result_to_string(result), |
726 | "MESSAGE=%s", buf, | |
727 | NULL); | |
728 | ||
729 | else if (t == JOB_RELOAD) | |
bbc9006e MT |
730 | log_struct_unit(result == JOB_DONE ? LOG_INFO : LOG_ERR, |
731 | u->id, | |
1ca6783f | 732 | MESSAGE_ID(SD_MESSAGE_UNIT_RELOADED), |
877d54e9 LP |
733 | "RESULT=%s", job_result_to_string(result), |
734 | "MESSAGE=%s", buf, | |
735 | NULL); | |
736 | } | |
737 | #pragma GCC diagnostic pop | |
738 | ||
5273510e | 739 | int job_finish_and_invalidate(Job *j, JobResult result, bool recursive) { |
87f0e418 LP |
740 | Unit *u; |
741 | Unit *other; | |
b866264a | 742 | JobType t; |
034c6ed7 | 743 | Iterator i; |
5cb5a6ff LP |
744 | |
745 | assert(j); | |
ac1135be | 746 | assert(j->installed); |
e0209d83 | 747 | assert(j->type < _JOB_TYPE_MAX_IN_TRANSACTION); |
5cb5a6ff | 748 | |
c6918296 MS |
749 | u = j->unit; |
750 | t = j->type; | |
751 | ||
752 | j->result = result; | |
753 | ||
637f8b8e MS |
754 | if (j->state == JOB_RUNNING) |
755 | j->manager->n_running_jobs--; | |
756 | ||
66870f90 ZJS |
757 | log_debug_unit(u->id, "Job %s/%s finished, result=%s", |
758 | u->id, job_type_to_string(t), job_result_to_string(result)); | |
c6918296 MS |
759 | |
760 | job_print_status_message(u, t, result); | |
877d54e9 | 761 | job_log_status_message(u, t, result); |
c6918296 | 762 | |
c1e1601e | 763 | job_add_to_dbus_queue(j); |
f50e0a01 | 764 | |
034c6ed7 | 765 | /* Patch restart jobs so that they become normal start jobs */ |
c6918296 | 766 | if (result == JOB_DONE && t == JOB_RESTART) { |
f50e0a01 | 767 | |
bbd1a837 | 768 | job_change_type(j, JOB_START); |
9c2d9caa | 769 | j->state = JOB_WAITING; |
cc42e081 LP |
770 | |
771 | job_add_to_run_queue(j); | |
57981b98 | 772 | |
57981b98 | 773 | goto finish; |
5cb5a6ff LP |
774 | } |
775 | ||
6a371e23 | 776 | if (result == JOB_FAILED || result == JOB_INVALID) |
76bf48b7 LP |
777 | j->manager->n_failed_jobs ++; |
778 | ||
97e7d748 | 779 | job_uninstall(j); |
5cb5a6ff LP |
780 | job_free(j); |
781 | ||
782 | /* Fail depending jobs on failure */ | |
5273510e | 783 | if (result != JOB_DONE && recursive) { |
5cb5a6ff LP |
784 | |
785 | if (t == JOB_START || | |
e0209d83 | 786 | t == JOB_VERIFY_ACTIVE) { |
5cb5a6ff | 787 | |
ac155bb8 MS |
788 | SET_FOREACH(other, u->dependencies[UNIT_REQUIRED_BY], i) |
789 | if (other->job && | |
790 | (other->job->type == JOB_START || | |
e0209d83 | 791 | other->job->type == JOB_VERIFY_ACTIVE)) |
5273510e | 792 | job_finish_and_invalidate(other->job, JOB_DEPENDENCY, true); |
5cb5a6ff | 793 | |
ac155bb8 MS |
794 | SET_FOREACH(other, u->dependencies[UNIT_BOUND_BY], i) |
795 | if (other->job && | |
796 | (other->job->type == JOB_START || | |
e0209d83 | 797 | other->job->type == JOB_VERIFY_ACTIVE)) |
5273510e | 798 | job_finish_and_invalidate(other->job, JOB_DEPENDENCY, true); |
e6a3ff95 | 799 | |
ac155bb8 MS |
800 | SET_FOREACH(other, u->dependencies[UNIT_REQUIRED_BY_OVERRIDABLE], i) |
801 | if (other->job && | |
802 | !other->job->override && | |
803 | (other->job->type == JOB_START || | |
e0209d83 | 804 | other->job->type == JOB_VERIFY_ACTIVE)) |
5273510e | 805 | job_finish_and_invalidate(other->job, JOB_DEPENDENCY, true); |
5cb5a6ff LP |
806 | |
807 | } else if (t == JOB_STOP) { | |
808 | ||
ac155bb8 MS |
809 | SET_FOREACH(other, u->dependencies[UNIT_CONFLICTED_BY], i) |
810 | if (other->job && | |
811 | (other->job->type == JOB_START || | |
e0209d83 | 812 | other->job->type == JOB_VERIFY_ACTIVE)) |
5273510e | 813 | job_finish_and_invalidate(other->job, JOB_DEPENDENCY, true); |
5cb5a6ff LP |
814 | } |
815 | } | |
816 | ||
c0daa706 | 817 | /* Trigger OnFailure dependencies that are not generated by |
66870f90 | 818 | * the unit itself. We don't treat JOB_CANCELED as failure in |
c0daa706 LP |
819 | * this context. And JOB_FAILURE is already handled by the |
820 | * unit itself. */ | |
222ae6a8 | 821 | if (result == JOB_TIMEOUT || result == JOB_DEPENDENCY) { |
bbc9006e MT |
822 | log_struct_unit(LOG_NOTICE, |
823 | u->id, | |
66870f90 | 824 | "JOB_TYPE=%s", job_type_to_string(t), |
38c888a4 | 825 | "JOB_RESULT=%s", job_result_to_string(result), |
66870f90 | 826 | "Job %s/%s failed with result '%s'.", |
ac155bb8 | 827 | u->id, |
222ae6a8 | 828 | job_type_to_string(t), |
66870f90 ZJS |
829 | job_result_to_string(result), |
830 | NULL); | |
222ae6a8 | 831 | |
3ecaa09b | 832 | unit_start_on_failure(u); |
222ae6a8 | 833 | } |
c0daa706 | 834 | |
3ecaa09b LP |
835 | unit_trigger_notify(u); |
836 | ||
57981b98 | 837 | finish: |
5cb5a6ff | 838 | /* Try to start the next jobs that can be started */ |
ac155bb8 MS |
839 | SET_FOREACH(other, u->dependencies[UNIT_AFTER], i) |
840 | if (other->job) | |
841 | job_add_to_run_queue(other->job); | |
842 | SET_FOREACH(other, u->dependencies[UNIT_BEFORE], i) | |
843 | if (other->job) | |
844 | job_add_to_run_queue(other->job); | |
5cb5a6ff | 845 | |
ac155bb8 | 846 | manager_check_finished(u->manager); |
b0c918b9 | 847 | |
5273510e | 848 | return 0; |
5cb5a6ff | 849 | } |
034c6ed7 | 850 | |
718db961 LP |
851 | static int job_dispatch_timer(sd_event_source *s, uint64_t monotonic, void *userdata) { |
852 | Job *j = userdata; | |
faf919f1 | 853 | |
718db961 LP |
854 | assert(j); |
855 | assert(s == j->timer_event_source); | |
faf919f1 | 856 | |
718db961 LP |
857 | log_warning_unit(j->unit->id, "Job %s/%s timed out.", |
858 | j->unit->id, job_type_to_string(j->type)); | |
faf919f1 | 859 | |
718db961 LP |
860 | job_finish_and_invalidate(j, JOB_TIMEOUT, true); |
861 | return 0; | |
862 | } | |
faf919f1 | 863 | |
718db961 LP |
864 | int job_start_timer(Job *j) { |
865 | int r; | |
faf919f1 | 866 | |
8bb310c3 | 867 | if (j->timer_event_source) |
718db961 | 868 | return 0; |
faf919f1 | 869 | |
718db961 | 870 | j->begin_usec = now(CLOCK_MONOTONIC); |
faf919f1 | 871 | |
8bb310c3 ZJS |
872 | if (j->unit->job_timeout <= 0) |
873 | return 0; | |
874 | ||
718db961 LP |
875 | r = sd_event_add_monotonic(j->manager->event, j->begin_usec + j->unit->job_timeout, 0, job_dispatch_timer, j, &j->timer_event_source); |
876 | if (r < 0) | |
877 | return r; | |
faf919f1 | 878 | |
718db961 | 879 | return 0; |
faf919f1 LP |
880 | } |
881 | ||
c1e1601e | 882 | void job_add_to_run_queue(Job *j) { |
034c6ed7 | 883 | assert(j); |
ac1135be | 884 | assert(j->installed); |
034c6ed7 LP |
885 | |
886 | if (j->in_run_queue) | |
887 | return; | |
888 | ||
752b5905 LP |
889 | if (!j->manager->run_queue) |
890 | sd_event_source_set_enabled(j->manager->run_queue_event_source, SD_EVENT_ONESHOT); | |
891 | ||
71fda00f | 892 | LIST_PREPEND(run_queue, j->manager->run_queue, j); |
034c6ed7 LP |
893 | j->in_run_queue = true; |
894 | } | |
94f04347 | 895 | |
c1e1601e LP |
896 | void job_add_to_dbus_queue(Job *j) { |
897 | assert(j); | |
898 | assert(j->installed); | |
899 | ||
900 | if (j->in_dbus_queue) | |
901 | return; | |
902 | ||
a567261a LP |
903 | /* We don't check if anybody is subscribed here, since this |
904 | * job might just have been created and not yet assigned to a | |
905 | * connection/client. */ | |
94b6dfa2 | 906 | |
71fda00f | 907 | LIST_PREPEND(dbus_queue, j->manager->dbus_job_queue, j); |
c1e1601e LP |
908 | j->in_dbus_queue = true; |
909 | } | |
910 | ||
ea430986 LP |
911 | char *job_dbus_path(Job *j) { |
912 | char *p; | |
913 | ||
914 | assert(j); | |
915 | ||
ccd06097 | 916 | if (asprintf(&p, "/org/freedesktop/systemd1/job/%"PRIu32, j->id) < 0) |
ea430986 LP |
917 | return NULL; |
918 | ||
919 | return p; | |
920 | } | |
921 | ||
39a18c60 MS |
922 | int job_serialize(Job *j, FILE *f, FDSet *fds) { |
923 | fprintf(f, "job-id=%u\n", j->id); | |
924 | fprintf(f, "job-type=%s\n", job_type_to_string(j->type)); | |
925 | fprintf(f, "job-state=%s\n", job_state_to_string(j->state)); | |
926 | fprintf(f, "job-override=%s\n", yes_no(j->override)); | |
23ade460 | 927 | fprintf(f, "job-irreversible=%s\n", yes_no(j->irreversible)); |
39a18c60 MS |
928 | fprintf(f, "job-sent-dbus-new-signal=%s\n", yes_no(j->sent_dbus_new_signal)); |
929 | fprintf(f, "job-ignore-order=%s\n", yes_no(j->ignore_order)); | |
718db961 LP |
930 | |
931 | if (j->begin_usec > 0) | |
ccd06097 | 932 | fprintf(f, "job-begin="USEC_FMT"\n", j->begin_usec); |
718db961 LP |
933 | |
934 | bus_client_track_serialize(j->manager, f, j->subscribed); | |
39a18c60 MS |
935 | |
936 | /* End marker */ | |
937 | fputc('\n', f); | |
938 | return 0; | |
939 | } | |
940 | ||
941 | int job_deserialize(Job *j, FILE *f, FDSet *fds) { | |
718db961 LP |
942 | assert(j); |
943 | ||
39a18c60 MS |
944 | for (;;) { |
945 | char line[LINE_MAX], *l, *v; | |
946 | size_t k; | |
947 | ||
948 | if (!fgets(line, sizeof(line), f)) { | |
949 | if (feof(f)) | |
950 | return 0; | |
951 | return -errno; | |
952 | } | |
953 | ||
954 | char_array_0(line); | |
955 | l = strstrip(line); | |
956 | ||
957 | /* End marker */ | |
958 | if (l[0] == 0) | |
959 | return 0; | |
960 | ||
961 | k = strcspn(l, "="); | |
962 | ||
963 | if (l[k] == '=') { | |
964 | l[k] = 0; | |
965 | v = l+k+1; | |
966 | } else | |
967 | v = l+k; | |
968 | ||
969 | if (streq(l, "job-id")) { | |
718db961 | 970 | |
39a18c60 MS |
971 | if (safe_atou32(v, &j->id) < 0) |
972 | log_debug("Failed to parse job id value %s", v); | |
718db961 | 973 | |
39a18c60 | 974 | } else if (streq(l, "job-type")) { |
718db961 LP |
975 | JobType t; |
976 | ||
977 | t = job_type_from_string(v); | |
39a18c60 MS |
978 | if (t < 0) |
979 | log_debug("Failed to parse job type %s", v); | |
e0209d83 MS |
980 | else if (t >= _JOB_TYPE_MAX_IN_TRANSACTION) |
981 | log_debug("Cannot deserialize job of type %s", v); | |
39a18c60 MS |
982 | else |
983 | j->type = t; | |
718db961 | 984 | |
39a18c60 | 985 | } else if (streq(l, "job-state")) { |
718db961 LP |
986 | JobState s; |
987 | ||
988 | s = job_state_from_string(v); | |
39a18c60 MS |
989 | if (s < 0) |
990 | log_debug("Failed to parse job state %s", v); | |
991 | else | |
992 | j->state = s; | |
718db961 | 993 | |
39a18c60 | 994 | } else if (streq(l, "job-override")) { |
718db961 LP |
995 | int b; |
996 | ||
997 | b = parse_boolean(v); | |
39a18c60 MS |
998 | if (b < 0) |
999 | log_debug("Failed to parse job override flag %s", v); | |
1000 | else | |
1001 | j->override = j->override || b; | |
718db961 | 1002 | |
23ade460 | 1003 | } else if (streq(l, "job-irreversible")) { |
718db961 LP |
1004 | int b; |
1005 | ||
1006 | b = parse_boolean(v); | |
23ade460 MS |
1007 | if (b < 0) |
1008 | log_debug("Failed to parse job irreversible flag %s", v); | |
1009 | else | |
1010 | j->irreversible = j->irreversible || b; | |
718db961 | 1011 | |
39a18c60 | 1012 | } else if (streq(l, "job-sent-dbus-new-signal")) { |
718db961 LP |
1013 | int b; |
1014 | ||
1015 | b = parse_boolean(v); | |
39a18c60 MS |
1016 | if (b < 0) |
1017 | log_debug("Failed to parse job sent_dbus_new_signal flag %s", v); | |
1018 | else | |
1019 | j->sent_dbus_new_signal = j->sent_dbus_new_signal || b; | |
718db961 | 1020 | |
39a18c60 | 1021 | } else if (streq(l, "job-ignore-order")) { |
718db961 LP |
1022 | int b; |
1023 | ||
1024 | b = parse_boolean(v); | |
39a18c60 MS |
1025 | if (b < 0) |
1026 | log_debug("Failed to parse job ignore_order flag %s", v); | |
1027 | else | |
1028 | j->ignore_order = j->ignore_order || b; | |
718db961 LP |
1029 | |
1030 | } else if (streq(l, "job-begin")) { | |
1031 | unsigned long long ull; | |
1032 | ||
1033 | if (sscanf(v, "%llu", &ull) != 1) | |
1034 | log_debug("Failed to parse job-begin value %s", v); | |
39a18c60 | 1035 | else |
718db961 LP |
1036 | j->begin_usec = ull; |
1037 | ||
1038 | } else { | |
1039 | char t[strlen(l) + 1 + strlen(v) + 1]; | |
1040 | ||
1041 | strcpy(stpcpy(stpcpy(t, l), "="), v); | |
1042 | ||
1043 | if (bus_client_track_deserialize_item(j->manager, &j->subscribed, t) == 0) | |
1044 | log_debug("Unknown deserialization key '%s'", l); | |
39a18c60 MS |
1045 | } |
1046 | } | |
1047 | } | |
1048 | ||
1049 | int job_coldplug(Job *j) { | |
718db961 LP |
1050 | int r; |
1051 | ||
1052 | assert(j); | |
39a18c60 | 1053 | |
8bb310c3 | 1054 | if (j->begin_usec == 0 || j->unit->job_timeout == 0) |
39a18c60 MS |
1055 | return 0; |
1056 | ||
718db961 LP |
1057 | if (j->timer_event_source) |
1058 | j->timer_event_source = sd_event_source_unref(j->timer_event_source); | |
39a18c60 | 1059 | |
718db961 LP |
1060 | r = sd_event_add_monotonic(j->manager->event, j->begin_usec + j->unit->job_timeout, 0, job_dispatch_timer, j, &j->timer_event_source); |
1061 | if (r < 0) | |
1062 | log_debug("Failed to restart timeout for job: %s", strerror(-r)); | |
1063 | ||
1064 | return r; | |
39a18c60 MS |
1065 | } |
1066 | ||
c65eb836 LP |
1067 | void job_shutdown_magic(Job *j) { |
1068 | assert(j); | |
1069 | ||
1070 | /* The shutdown target gets some special treatment here: we | |
1071 | * tell the kernel to begin with flushing its disk caches, to | |
1072 | * optimize shutdown time a bit. Ideally we wouldn't hardcode | |
1073 | * this magic into PID 1. However all other processes aren't | |
1074 | * options either since they'd exit much sooner than PID 1 and | |
1075 | * asynchronous sync() would cause their exit to be | |
1076 | * delayed. */ | |
1077 | ||
c2756a68 | 1078 | if (j->type != JOB_START) |
c65eb836 LP |
1079 | return; |
1080 | ||
c2756a68 LP |
1081 | if (j->unit->manager->running_as != SYSTEMD_SYSTEM) |
1082 | return; | |
1083 | ||
1084 | if (!unit_has_name(j->unit, SPECIAL_SHUTDOWN_TARGET)) | |
c65eb836 LP |
1085 | return; |
1086 | ||
5b1869ea OB |
1087 | /* In case messages on console has been disabled on boot */ |
1088 | j->unit->manager->no_console_output = false; | |
1089 | ||
c65eb836 LP |
1090 | if (detect_container(NULL) > 0) |
1091 | return; | |
1092 | ||
1093 | asynchronous_sync(); | |
1094 | } | |
1095 | ||
68db7a3b ZJS |
1096 | int job_get_timeout(Job *j, uint64_t *timeout) { |
1097 | Unit *u = j->unit; | |
1098 | uint64_t x = -1, y = -1; | |
1099 | int r = 0, q = 0; | |
1100 | ||
1101 | assert(u); | |
1102 | ||
1103 | if (j->timer_event_source) { | |
1104 | r = sd_event_source_get_time(j->timer_event_source, &x); | |
1105 | if (r < 0) | |
1106 | return r; | |
1107 | r = 1; | |
1108 | } | |
1109 | ||
1110 | if (UNIT_VTABLE(u)->get_timeout) { | |
1111 | q = UNIT_VTABLE(u)->get_timeout(u, &y); | |
1112 | if (q < 0) | |
1113 | return q; | |
1114 | } | |
1115 | ||
1116 | if (r == 0 && q == 0) | |
1117 | return 0; | |
1118 | ||
1119 | *timeout = MIN(x, y); | |
1120 | ||
68db7a3b ZJS |
1121 | return 1; |
1122 | } | |
1123 | ||
94f04347 LP |
1124 | static const char* const job_state_table[_JOB_STATE_MAX] = { |
1125 | [JOB_WAITING] = "waiting", | |
1126 | [JOB_RUNNING] = "running" | |
1127 | }; | |
1128 | ||
1129 | DEFINE_STRING_TABLE_LOOKUP(job_state, JobState); | |
1130 | ||
1131 | static const char* const job_type_table[_JOB_TYPE_MAX] = { | |
1132 | [JOB_START] = "start", | |
1133 | [JOB_VERIFY_ACTIVE] = "verify-active", | |
1134 | [JOB_STOP] = "stop", | |
1135 | [JOB_RELOAD] = "reload", | |
1136 | [JOB_RELOAD_OR_START] = "reload-or-start", | |
1137 | [JOB_RESTART] = "restart", | |
1138 | [JOB_TRY_RESTART] = "try-restart", | |
e0209d83 | 1139 | [JOB_NOP] = "nop", |
94f04347 LP |
1140 | }; |
1141 | ||
1142 | DEFINE_STRING_TABLE_LOOKUP(job_type, JobType); | |
b548631a LP |
1143 | |
1144 | static const char* const job_mode_table[_JOB_MODE_MAX] = { | |
1145 | [JOB_FAIL] = "fail", | |
c497c7a9 | 1146 | [JOB_REPLACE] = "replace", |
23ade460 | 1147 | [JOB_REPLACE_IRREVERSIBLY] = "replace-irreversibly", |
e67c3609 | 1148 | [JOB_ISOLATE] = "isolate", |
cebe0d41 | 1149 | [JOB_IGNORE_DEPENDENCIES] = "ignore-dependencies", |
255baef6 LP |
1150 | [JOB_IGNORE_REQUIREMENTS] = "ignore-requirements", |
1151 | [JOB_FLUSH] = "flush", | |
b548631a LP |
1152 | }; |
1153 | ||
1154 | DEFINE_STRING_TABLE_LOOKUP(job_mode, JobMode); | |
5d44db4a LP |
1155 | |
1156 | static const char* const job_result_table[_JOB_RESULT_MAX] = { | |
1157 | [JOB_DONE] = "done", | |
1158 | [JOB_CANCELED] = "canceled", | |
1159 | [JOB_TIMEOUT] = "timeout", | |
1160 | [JOB_FAILED] = "failed", | |
d68201e9 | 1161 | [JOB_DEPENDENCY] = "dependency", |
6a371e23 ZJS |
1162 | [JOB_SKIPPED] = "skipped", |
1163 | [JOB_INVALID] = "invalid", | |
5d44db4a LP |
1164 | }; |
1165 | ||
1166 | DEFINE_STRING_TABLE_LOOKUP(job_result, JobResult); |