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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 | |
877d54e9 LP |
27 | #include "systemd/sd-id128.h" |
28 | #include "systemd/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 LP |
37 | #include "special.h" |
38 | #include "sync.h" | |
39 | #include "virt.h" | |
60918275 | 40 | |
97e6a119 MS |
41 | JobBusClient* job_bus_client_new(DBusConnection *connection, const char *name) { |
42 | JobBusClient *cl; | |
43 | size_t name_len; | |
44 | ||
45 | name_len = strlen(name); | |
46 | cl = malloc0(sizeof(JobBusClient) + name_len + 1); | |
47 | if (!cl) | |
48 | return NULL; | |
49 | ||
50 | cl->bus = connection; | |
51 | memcpy(cl->name, name, name_len + 1); | |
52 | return cl; | |
53 | } | |
54 | ||
39a18c60 | 55 | Job* job_new_raw(Unit *unit) { |
60918275 LP |
56 | Job *j; |
57 | ||
39a18c60 MS |
58 | /* used for deserialization */ |
59 | ||
87f0e418 | 60 | assert(unit); |
60918275 | 61 | |
39a18c60 MS |
62 | j = new0(Job, 1); |
63 | if (!j) | |
60918275 LP |
64 | return NULL; |
65 | ||
668ad332 | 66 | j->manager = unit->manager; |
87f0e418 | 67 | j->unit = unit; |
e0209d83 | 68 | j->type = _JOB_TYPE_INVALID; |
faf919f1 LP |
69 | j->timer_watch.type = WATCH_INVALID; |
70 | ||
39a18c60 MS |
71 | return j; |
72 | } | |
73 | ||
74 | Job* job_new(Unit *unit, JobType type) { | |
75 | Job *j; | |
76 | ||
77 | assert(type < _JOB_TYPE_MAX); | |
78 | ||
79 | j = job_new_raw(unit); | |
80 | if (!j) | |
81 | return NULL; | |
82 | ||
83 | j->id = j->manager->current_job_id++; | |
84 | j->type = type; | |
85 | ||
e5b5ae50 | 86 | /* We don't link it here, that's what job_dependency() is for */ |
60918275 LP |
87 | |
88 | return j; | |
89 | } | |
90 | ||
97e7d748 | 91 | void job_free(Job *j) { |
97e6a119 MS |
92 | JobBusClient *cl; |
93 | ||
97e7d748 MS |
94 | assert(j); |
95 | assert(!j->installed); | |
02a3bcc6 MS |
96 | assert(!j->transaction_prev); |
97 | assert(!j->transaction_next); | |
98 | assert(!j->subject_list); | |
99 | assert(!j->object_list); | |
60918275 | 100 | |
c1e1601e LP |
101 | if (j->in_run_queue) |
102 | LIST_REMOVE(Job, run_queue, j->manager->run_queue, j); | |
103 | ||
104 | if (j->in_dbus_queue) | |
105 | LIST_REMOVE(Job, dbus_queue, j->manager->dbus_job_queue, j); | |
106 | ||
faf919f1 LP |
107 | if (j->timer_watch.type != WATCH_INVALID) { |
108 | assert(j->timer_watch.type == WATCH_JOB_TIMER); | |
109 | assert(j->timer_watch.data.job == j); | |
110 | assert(j->timer_watch.fd >= 0); | |
111 | ||
112 | assert_se(epoll_ctl(j->manager->epoll_fd, EPOLL_CTL_DEL, j->timer_watch.fd, NULL) >= 0); | |
113 | close_nointr_nofail(j->timer_watch.fd); | |
114 | } | |
115 | ||
97e6a119 MS |
116 | while ((cl = j->bus_client_list)) { |
117 | LIST_REMOVE(JobBusClient, client, j->bus_client_list, cl); | |
118 | free(cl); | |
119 | } | |
60918275 LP |
120 | free(j); |
121 | } | |
a66d02c3 | 122 | |
05d576f1 | 123 | void job_uninstall(Job *j) { |
e0209d83 MS |
124 | Job **pj; |
125 | ||
05d576f1 | 126 | assert(j->installed); |
e0209d83 MS |
127 | |
128 | pj = (j->type == JOB_NOP) ? &j->unit->nop_job : &j->unit->job; | |
129 | assert(*pj == j); | |
130 | ||
05d576f1 MS |
131 | /* Detach from next 'bigger' objects */ |
132 | ||
39a18c60 MS |
133 | /* daemon-reload should be transparent to job observers */ |
134 | if (j->manager->n_reloading <= 0) | |
135 | bus_job_send_removed_signal(j); | |
05d576f1 | 136 | |
e0209d83 MS |
137 | *pj = NULL; |
138 | ||
d6a093d0 | 139 | unit_add_to_gc_queue(j->unit); |
05d576f1 MS |
140 | |
141 | hashmap_remove(j->manager->jobs, UINT32_TO_PTR(j->id)); | |
142 | j->installed = false; | |
143 | } | |
144 | ||
656bbffc MS |
145 | static bool job_type_allows_late_merge(JobType t) { |
146 | /* Tells whether it is OK to merge a job of type 't' with an already | |
147 | * running job. | |
148 | * Reloads cannot be merged this way. Think of the sequence: | |
149 | * 1. Reload of a daemon is in progress; the daemon has already loaded | |
150 | * its config file, but hasn't completed the reload operation yet. | |
151 | * 2. Edit foo's config file. | |
152 | * 3. Trigger another reload to have the daemon use the new config. | |
153 | * Should the second reload job be merged into the first one, the daemon | |
154 | * would not know about the new config. | |
155 | * JOB_RESTART jobs on the other hand can be merged, because they get | |
156 | * patched into JOB_START after stopping the unit. So if we see a | |
157 | * JOB_RESTART running, it means the unit hasn't stopped yet and at | |
158 | * this time the merge is still allowed. */ | |
e0209d83 | 159 | return t != JOB_RELOAD; |
656bbffc MS |
160 | } |
161 | ||
162 | static void job_merge_into_installed(Job *j, Job *other) { | |
163 | assert(j->installed); | |
164 | assert(j->unit == other->unit); | |
165 | ||
e0209d83 MS |
166 | if (j->type != JOB_NOP) |
167 | job_type_merge_and_collapse(&j->type, other->type, j->unit); | |
168 | else | |
169 | assert(other->type == JOB_NOP); | |
656bbffc MS |
170 | |
171 | j->override = j->override || other->override; | |
23ade460 | 172 | j->irreversible = j->irreversible || other->irreversible; |
e45460d6 | 173 | j->ignore_order = j->ignore_order || other->ignore_order; |
656bbffc MS |
174 | } |
175 | ||
176 | Job* job_install(Job *j) { | |
e0209d83 MS |
177 | Job **pj; |
178 | Job *uj; | |
05d576f1 | 179 | |
656bbffc | 180 | assert(!j->installed); |
e0209d83 MS |
181 | assert(j->type < _JOB_TYPE_MAX_IN_TRANSACTION); |
182 | ||
183 | pj = (j->type == JOB_NOP) ? &j->unit->nop_job : &j->unit->job; | |
184 | uj = *pj; | |
656bbffc | 185 | |
05d576f1 | 186 | if (uj) { |
e0209d83 | 187 | if (j->type != JOB_NOP && job_type_is_conflicting(uj->type, j->type)) |
1abc85b8 | 188 | job_finish_and_invalidate(uj, JOB_CANCELED, false); |
656bbffc MS |
189 | else { |
190 | /* not conflicting, i.e. mergeable */ | |
191 | ||
e0209d83 | 192 | if (j->type == JOB_NOP || uj->state == JOB_WAITING || |
656bbffc MS |
193 | (job_type_allows_late_merge(j->type) && job_type_is_superset(uj->type, j->type))) { |
194 | job_merge_into_installed(uj, j); | |
66870f90 ZJS |
195 | log_debug_unit(uj->unit->id, |
196 | "Merged into installed job %s/%s as %u", | |
197 | uj->unit->id, job_type_to_string(uj->type), (unsigned) uj->id); | |
656bbffc MS |
198 | return uj; |
199 | } else { | |
200 | /* already running and not safe to merge into */ | |
201 | /* Patch uj to become a merged job and re-run it. */ | |
202 | /* XXX It should be safer to queue j to run after uj finishes, but it is | |
203 | * not currently possible to have more than one installed job per unit. */ | |
204 | job_merge_into_installed(uj, j); | |
66870f90 ZJS |
205 | log_debug_unit(uj->unit->id, |
206 | "Merged into running job, re-running: %s/%s as %u", | |
207 | uj->unit->id, job_type_to_string(uj->type), (unsigned) uj->id); | |
656bbffc | 208 | uj->state = JOB_WAITING; |
637f8b8e | 209 | uj->manager->n_running_jobs--; |
656bbffc MS |
210 | return uj; |
211 | } | |
212 | } | |
05d576f1 MS |
213 | } |
214 | ||
656bbffc | 215 | /* Install the job */ |
e0209d83 | 216 | *pj = j; |
05d576f1 MS |
217 | j->installed = true; |
218 | j->manager->n_installed_jobs ++; | |
66870f90 ZJS |
219 | log_debug_unit(j->unit->id, |
220 | "Installed new job %s/%s as %u", | |
221 | j->unit->id, job_type_to_string(j->type), (unsigned) j->id); | |
656bbffc | 222 | return j; |
05d576f1 MS |
223 | } |
224 | ||
e0209d83 MS |
225 | int job_install_deserialized(Job *j) { |
226 | Job **pj; | |
227 | ||
39a18c60 MS |
228 | assert(!j->installed); |
229 | ||
e0209d83 MS |
230 | if (j->type < 0 || j->type >= _JOB_TYPE_MAX_IN_TRANSACTION) { |
231 | log_debug("Invalid job type %s in deserialization.", strna(job_type_to_string(j->type))); | |
232 | return -EINVAL; | |
233 | } | |
234 | ||
235 | pj = (j->type == JOB_NOP) ? &j->unit->nop_job : &j->unit->job; | |
236 | ||
237 | if (*pj) { | |
66870f90 ZJS |
238 | log_debug_unit(j->unit->id, |
239 | "Unit %s already has a job installed. Not installing deserialized job.", | |
240 | j->unit->id); | |
e0209d83 | 241 | return -EEXIST; |
39a18c60 | 242 | } |
e0209d83 | 243 | *pj = j; |
39a18c60 | 244 | j->installed = true; |
66870f90 ZJS |
245 | log_debug_unit(j->unit->id, |
246 | "Reinstalled deserialized job %s/%s as %u", | |
247 | j->unit->id, job_type_to_string(j->type), (unsigned) j->id); | |
e0209d83 | 248 | return 0; |
39a18c60 MS |
249 | } |
250 | ||
1da4264f | 251 | JobDependency* job_dependency_new(Job *subject, Job *object, bool matters, bool conflicts) { |
e5b5ae50 LP |
252 | JobDependency *l; |
253 | ||
254 | assert(object); | |
255 | ||
256 | /* Adds a new job link, which encodes that the 'subject' job | |
257 | * needs the 'object' job in some way. If 'subject' is NULL | |
258 | * this means the 'anchor' job (i.e. the one the user | |
35b8ca3a | 259 | * explicitly asked for) is the requester. */ |
e5b5ae50 | 260 | |
ceed3570 | 261 | if (!(l = new0(JobDependency, 1))) |
e5b5ae50 LP |
262 | return NULL; |
263 | ||
264 | l->subject = subject; | |
265 | l->object = object; | |
266 | l->matters = matters; | |
69dd2852 | 267 | l->conflicts = conflicts; |
e5b5ae50 | 268 | |
44d8db9e LP |
269 | if (subject) |
270 | LIST_PREPEND(JobDependency, subject, subject->subject_list, l); | |
e5b5ae50 | 271 | |
44d8db9e | 272 | LIST_PREPEND(JobDependency, object, object->object_list, l); |
e5b5ae50 LP |
273 | |
274 | return l; | |
275 | } | |
276 | ||
1da4264f | 277 | void job_dependency_free(JobDependency *l) { |
e5b5ae50 LP |
278 | assert(l); |
279 | ||
44d8db9e LP |
280 | if (l->subject) |
281 | LIST_REMOVE(JobDependency, subject, l->subject->subject_list, l); | |
e5b5ae50 | 282 | |
44d8db9e | 283 | LIST_REMOVE(JobDependency, object, l->object->object_list, l); |
e5b5ae50 LP |
284 | |
285 | free(l); | |
286 | } | |
287 | ||
1ffba6fe | 288 | void job_dump(Job *j, FILE*f, const char *prefix) { |
a66d02c3 LP |
289 | assert(j); |
290 | assert(f); | |
291 | ||
9eb63b3c LP |
292 | if (!prefix) |
293 | prefix = ""; | |
294 | ||
ceed3570 | 295 | fprintf(f, |
40d50879 LP |
296 | "%s-> Job %u:\n" |
297 | "%s\tAction: %s -> %s\n" | |
5cb5a6ff | 298 | "%s\tState: %s\n" |
23ade460 MS |
299 | "%s\tForced: %s\n" |
300 | "%s\tIrreversible: %s\n", | |
ceed3570 | 301 | prefix, j->id, |
ac155bb8 | 302 | prefix, j->unit->id, job_type_to_string(j->type), |
94f04347 | 303 | prefix, job_state_to_string(j->state), |
23ade460 MS |
304 | prefix, yes_no(j->override), |
305 | prefix, yes_no(j->irreversible)); | |
a66d02c3 | 306 | } |
e5b5ae50 | 307 | |
348e27fe MS |
308 | /* |
309 | * Merging is commutative, so imagine the matrix as symmetric. We store only | |
310 | * its lower triangle to avoid duplication. We don't store the main diagonal, | |
311 | * because A merged with A is simply A. | |
312 | * | |
e0209d83 MS |
313 | * If the resulting type is collapsed immediately afterwards (to get rid of |
314 | * the JOB_RELOAD_OR_START, which lies outside the lookup function's domain), | |
315 | * the following properties hold: | |
316 | * | |
348e27fe MS |
317 | * Merging is associative! A merged with B merged with C is the same as |
318 | * A merged with C merged with B. | |
319 | * | |
320 | * Mergeability is transitive! If A can be merged with B and B with C then | |
321 | * A also with C. | |
322 | * | |
323 | * Also, if A merged with B cannot be merged with C, then either A or B cannot | |
324 | * be merged with C either. | |
325 | */ | |
326 | static const JobType job_merging_table[] = { | |
e0209d83 MS |
327 | /* What \ With * JOB_START JOB_VERIFY_ACTIVE JOB_STOP JOB_RELOAD */ |
328 | /*********************************************************************************/ | |
348e27fe MS |
329 | /*JOB_START */ |
330 | /*JOB_VERIFY_ACTIVE */ JOB_START, | |
331 | /*JOB_STOP */ -1, -1, | |
332 | /*JOB_RELOAD */ JOB_RELOAD_OR_START, JOB_RELOAD, -1, | |
e0209d83 | 333 | /*JOB_RESTART */ JOB_RESTART, JOB_RESTART, -1, JOB_RESTART, |
348e27fe MS |
334 | }; |
335 | ||
336 | JobType job_type_lookup_merge(JobType a, JobType b) { | |
e0209d83 MS |
337 | assert_cc(ELEMENTSOF(job_merging_table) == _JOB_TYPE_MAX_MERGING * (_JOB_TYPE_MAX_MERGING - 1) / 2); |
338 | assert(a >= 0 && a < _JOB_TYPE_MAX_MERGING); | |
339 | assert(b >= 0 && b < _JOB_TYPE_MAX_MERGING); | |
1ffba6fe LP |
340 | |
341 | if (a == b) | |
348e27fe | 342 | return a; |
1ffba6fe | 343 | |
348e27fe MS |
344 | if (a < b) { |
345 | JobType tmp = a; | |
346 | a = b; | |
347 | b = tmp; | |
1ffba6fe | 348 | } |
e094e853 | 349 | |
348e27fe | 350 | return job_merging_table[(a - 1) * a / 2 + b]; |
e094e853 | 351 | } |
cd2dbd7d | 352 | |
593fbdd2 LP |
353 | bool job_type_is_redundant(JobType a, UnitActiveState b) { |
354 | switch (a) { | |
355 | ||
356 | case JOB_START: | |
357 | return | |
358 | b == UNIT_ACTIVE || | |
032ff4af | 359 | b == UNIT_RELOADING; |
593fbdd2 LP |
360 | |
361 | case JOB_STOP: | |
362 | return | |
6124958c | 363 | b == UNIT_INACTIVE || |
fdf20a31 | 364 | b == UNIT_FAILED; |
593fbdd2 LP |
365 | |
366 | case JOB_VERIFY_ACTIVE: | |
367 | return | |
368 | b == UNIT_ACTIVE || | |
032ff4af | 369 | b == UNIT_RELOADING; |
593fbdd2 LP |
370 | |
371 | case JOB_RELOAD: | |
372 | return | |
032ff4af | 373 | b == UNIT_RELOADING; |
593fbdd2 | 374 | |
593fbdd2 LP |
375 | case JOB_RESTART: |
376 | return | |
377 | b == UNIT_ACTIVATING; | |
378 | ||
e0209d83 MS |
379 | default: |
380 | assert_not_reached("Invalid job type"); | |
381 | } | |
382 | } | |
383 | ||
384 | void job_type_collapse(JobType *t, Unit *u) { | |
385 | UnitActiveState s; | |
386 | ||
387 | switch (*t) { | |
388 | ||
593fbdd2 | 389 | case JOB_TRY_RESTART: |
e0209d83 MS |
390 | s = unit_active_state(u); |
391 | if (UNIT_IS_INACTIVE_OR_DEACTIVATING(s)) | |
392 | *t = JOB_NOP; | |
393 | else | |
394 | *t = JOB_RESTART; | |
395 | break; | |
396 | ||
397 | case JOB_RELOAD_OR_START: | |
398 | s = unit_active_state(u); | |
399 | if (UNIT_IS_INACTIVE_OR_DEACTIVATING(s)) | |
400 | *t = JOB_START; | |
401 | else | |
402 | *t = JOB_RELOAD; | |
403 | break; | |
593fbdd2 LP |
404 | |
405 | default: | |
e0209d83 | 406 | ; |
593fbdd2 LP |
407 | } |
408 | } | |
409 | ||
e0209d83 MS |
410 | int job_type_merge_and_collapse(JobType *a, JobType b, Unit *u) { |
411 | JobType t = job_type_lookup_merge(*a, b); | |
412 | if (t < 0) | |
413 | return -EEXIST; | |
414 | *a = t; | |
415 | job_type_collapse(a, u); | |
416 | return 0; | |
417 | } | |
418 | ||
5cb5a6ff | 419 | bool job_is_runnable(Job *j) { |
034c6ed7 | 420 | Iterator i; |
87f0e418 | 421 | Unit *other; |
5cb5a6ff LP |
422 | |
423 | assert(j); | |
ac1135be | 424 | assert(j->installed); |
5cb5a6ff | 425 | |
87f0e418 | 426 | /* Checks whether there is any job running for the units this |
5cb5a6ff | 427 | * job needs to be running after (in the case of a 'positive' |
e67c3609 LP |
428 | * job type) or before (in the case of a 'negative' job |
429 | * type. */ | |
430 | ||
431 | /* First check if there is an override */ | |
cebe0d41 | 432 | if (j->ignore_order) |
e67c3609 | 433 | return true; |
5cb5a6ff | 434 | |
e0209d83 MS |
435 | if (j->type == JOB_NOP) |
436 | return true; | |
437 | ||
5cb5a6ff LP |
438 | if (j->type == JOB_START || |
439 | j->type == JOB_VERIFY_ACTIVE || | |
e0209d83 | 440 | j->type == JOB_RELOAD) { |
5cb5a6ff LP |
441 | |
442 | /* Immediate result is that the job is or might be | |
443 | * started. In this case lets wait for the | |
444 | * dependencies, regardless whether they are | |
445 | * starting or stopping something. */ | |
446 | ||
ac155bb8 MS |
447 | SET_FOREACH(other, j->unit->dependencies[UNIT_AFTER], i) |
448 | if (other->job) | |
5cb5a6ff LP |
449 | return false; |
450 | } | |
451 | ||
452 | /* Also, if something else is being stopped and we should | |
453 | * change state after it, then lets wait. */ | |
454 | ||
ac155bb8 MS |
455 | SET_FOREACH(other, j->unit->dependencies[UNIT_BEFORE], i) |
456 | if (other->job && | |
457 | (other->job->type == JOB_STOP || | |
e0209d83 | 458 | other->job->type == JOB_RESTART)) |
5cb5a6ff LP |
459 | return false; |
460 | ||
461 | /* This means that for a service a and a service b where b | |
462 | * shall be started after a: | |
463 | * | |
464 | * start a + start b → 1st step start a, 2nd step start b | |
465 | * start a + stop b → 1st step stop b, 2nd step start a | |
466 | * stop a + start b → 1st step stop a, 2nd step start b | |
467 | * stop a + stop b → 1st step stop b, 2nd step stop a | |
468 | * | |
469 | * This has the side effect that restarts are properly | |
470 | * synchronized too. */ | |
471 | ||
472 | return true; | |
473 | } | |
474 | ||
bbd1a837 | 475 | static void job_change_type(Job *j, JobType newtype) { |
66870f90 ZJS |
476 | log_debug_unit(j->unit->id, |
477 | "Converting job %s/%s -> %s/%s", | |
478 | j->unit->id, job_type_to_string(j->type), | |
479 | j->unit->id, job_type_to_string(newtype)); | |
bbd1a837 MS |
480 | |
481 | j->type = newtype; | |
482 | } | |
483 | ||
5cb5a6ff LP |
484 | int job_run_and_invalidate(Job *j) { |
485 | int r; | |
2cf19a7a | 486 | uint32_t id; |
637f8b8e | 487 | Manager *m = j->manager; |
ac1135be | 488 | |
5cb5a6ff | 489 | assert(j); |
ac1135be | 490 | assert(j->installed); |
e0209d83 | 491 | assert(j->type < _JOB_TYPE_MAX_IN_TRANSACTION); |
66aa6f7f | 492 | assert(j->in_run_queue); |
5cb5a6ff | 493 | |
66aa6f7f MS |
494 | LIST_REMOVE(Job, run_queue, j->manager->run_queue, j); |
495 | j->in_run_queue = false; | |
5cb5a6ff LP |
496 | |
497 | if (j->state != JOB_WAITING) | |
498 | return 0; | |
499 | ||
034c6ed7 LP |
500 | if (!job_is_runnable(j)) |
501 | return -EAGAIN; | |
502 | ||
83c60c9f | 503 | j->state = JOB_RUNNING; |
637f8b8e | 504 | m->n_running_jobs++; |
c1e1601e | 505 | job_add_to_dbus_queue(j); |
83c60c9f | 506 | |
2cf19a7a LP |
507 | /* While we execute this operation the job might go away (for |
508 | * example: because it is replaced by a new, conflicting | |
509 | * job.) To make sure we don't access a freed job later on we | |
510 | * store the id here, so that we can verify the job is still | |
511 | * valid. */ | |
512 | id = j->id; | |
2cf19a7a | 513 | |
5cb5a6ff LP |
514 | switch (j->type) { |
515 | ||
516 | case JOB_START: | |
87f0e418 | 517 | r = unit_start(j->unit); |
57339f47 | 518 | |
dd17d388 | 519 | /* If this unit cannot be started, then simply wait */ |
5cb5a6ff LP |
520 | if (r == -EBADR) |
521 | r = 0; | |
522 | break; | |
523 | ||
524 | case JOB_VERIFY_ACTIVE: { | |
87f0e418 LP |
525 | UnitActiveState t = unit_active_state(j->unit); |
526 | if (UNIT_IS_ACTIVE_OR_RELOADING(t)) | |
5cb5a6ff | 527 | r = -EALREADY; |
87f0e418 | 528 | else if (t == UNIT_ACTIVATING) |
5cb5a6ff LP |
529 | r = -EAGAIN; |
530 | else | |
531 | r = -ENOEXEC; | |
532 | break; | |
533 | } | |
534 | ||
535 | case JOB_STOP: | |
dd17d388 | 536 | case JOB_RESTART: |
87f0e418 | 537 | r = unit_stop(j->unit); |
57339f47 | 538 | |
dd17d388 | 539 | /* If this unit cannot stopped, then simply wait. */ |
57339f47 LP |
540 | if (r == -EBADR) |
541 | r = 0; | |
5cb5a6ff LP |
542 | break; |
543 | ||
544 | case JOB_RELOAD: | |
87f0e418 | 545 | r = unit_reload(j->unit); |
5cb5a6ff LP |
546 | break; |
547 | ||
e0209d83 MS |
548 | case JOB_NOP: |
549 | r = -EALREADY; | |
550 | break; | |
551 | ||
5cb5a6ff | 552 | default: |
44d8db9e | 553 | assert_not_reached("Unknown job type"); |
5cb5a6ff LP |
554 | } |
555 | ||
e0209d83 MS |
556 | j = manager_get_job(m, id); |
557 | if (j) { | |
2cf19a7a | 558 | if (r == -EALREADY) |
5273510e | 559 | r = job_finish_and_invalidate(j, JOB_DONE, true); |
d68201e9 | 560 | else if (r == -ENOEXEC) |
5273510e | 561 | r = job_finish_and_invalidate(j, JOB_SKIPPED, true); |
637f8b8e | 562 | else if (r == -EAGAIN) { |
2cf19a7a | 563 | j->state = JOB_WAITING; |
637f8b8e MS |
564 | m->n_running_jobs--; |
565 | } else if (r < 0) | |
5273510e | 566 | r = job_finish_and_invalidate(j, JOB_FAILED, true); |
2cf19a7a | 567 | } |
5cb5a6ff LP |
568 | |
569 | return r; | |
570 | } | |
571 | ||
44a6b1b6 | 572 | _pure_ static const char *job_get_status_message_format(Unit *u, JobType t, JobResult result) { |
c6918296 | 573 | const UnitStatusMessageFormats *format_table; |
877d54e9 LP |
574 | |
575 | assert(u); | |
576 | assert(t >= 0); | |
577 | assert(t < _JOB_TYPE_MAX); | |
c6918296 MS |
578 | |
579 | format_table = &UNIT_VTABLE(u)->status_message_formats; | |
580 | if (!format_table) | |
877d54e9 LP |
581 | return NULL; |
582 | ||
583 | if (t == JOB_START) | |
584 | return format_table->finished_start_job[result]; | |
585 | else if (t == JOB_STOP || t == JOB_RESTART) | |
586 | return format_table->finished_stop_job[result]; | |
587 | ||
588 | return NULL; | |
589 | } | |
e02cd6f7 | 590 | |
44a6b1b6 | 591 | _pure_ static const char *job_get_status_message_format_try_harder(Unit *u, JobType t, JobResult result) { |
877d54e9 LP |
592 | const char *format; |
593 | ||
594 | assert(u); | |
595 | assert(t >= 0); | |
596 | assert(t < _JOB_TYPE_MAX); | |
597 | ||
598 | format = job_get_status_message_format(u, t, result); | |
599 | if (format) | |
600 | return format; | |
601 | ||
602 | /* Return generic strings */ | |
e02cd6f7 | 603 | if (t == JOB_START) { |
877d54e9 LP |
604 | if (result == JOB_DONE) |
605 | return "Started %s."; | |
606 | else if (result == JOB_FAILED) | |
607 | return "Failed to start %s."; | |
608 | else if (result == JOB_DEPENDENCY) | |
609 | return "Dependency failed for %s."; | |
610 | else if (result == JOB_TIMEOUT) | |
611 | return "Timed out starting %s."; | |
612 | } else if (t == JOB_STOP || t == JOB_RESTART) { | |
613 | if (result == JOB_DONE) | |
614 | return "Stopped %s."; | |
615 | else if (result == JOB_FAILED) | |
616 | return "Stopped (with error) %s."; | |
617 | else if (result == JOB_TIMEOUT) | |
618 | return "Timed out stoppping %s."; | |
619 | } else if (t == JOB_RELOAD) { | |
620 | if (result == JOB_DONE) | |
621 | return "Reloaded %s."; | |
622 | else if (result == JOB_FAILED) | |
623 | return "Reload failed for %s."; | |
624 | else if (result == JOB_TIMEOUT) | |
625 | return "Timed out reloading %s."; | |
626 | } | |
627 | ||
628 | return NULL; | |
629 | } | |
630 | ||
631 | static void job_print_status_message(Unit *u, JobType t, JobResult result) { | |
632 | const char *format; | |
e02cd6f7 | 633 | |
877d54e9 LP |
634 | assert(u); |
635 | assert(t >= 0); | |
636 | assert(t < _JOB_TYPE_MAX); | |
637 | ||
638 | if (t == JOB_START) { | |
639 | format = job_get_status_message_format(u, t, result); | |
c6918296 MS |
640 | if (!format) |
641 | return; | |
642 | ||
e02cd6f7 LP |
643 | switch (result) { |
644 | ||
645 | case JOB_DONE: | |
69120666 | 646 | if (u->condition_result) |
076a24ad | 647 | unit_status_printf(u, ANSI_GREEN_ON " OK " ANSI_HIGHLIGHT_OFF, format); |
e02cd6f7 LP |
648 | break; |
649 | ||
650 | case JOB_FAILED: | |
49b1d377 | 651 | unit_status_printf(u, ANSI_HIGHLIGHT_RED_ON "FAILED" ANSI_HIGHLIGHT_OFF, format); |
984a2be4 | 652 | manager_status_printf(u->manager, false, NULL, "See 'systemctl status %s' for details.", u->id); |
e02cd6f7 LP |
653 | break; |
654 | ||
655 | case JOB_DEPENDENCY: | |
49b1d377 | 656 | unit_status_printf(u, ANSI_HIGHLIGHT_YELLOW_ON "DEPEND" ANSI_HIGHLIGHT_OFF, format); |
e02cd6f7 LP |
657 | break; |
658 | ||
659 | case JOB_TIMEOUT: | |
49b1d377 | 660 | unit_status_printf(u, ANSI_HIGHLIGHT_RED_ON " TIME " ANSI_HIGHLIGHT_OFF, format); |
e02cd6f7 LP |
661 | break; |
662 | ||
663 | default: | |
664 | ; | |
665 | } | |
666 | ||
1f136e7a | 667 | } else if (t == JOB_STOP || t == JOB_RESTART) { |
e02cd6f7 | 668 | |
877d54e9 | 669 | format = job_get_status_message_format(u, t, result); |
c6918296 MS |
670 | if (!format) |
671 | return; | |
672 | ||
e02cd6f7 LP |
673 | switch (result) { |
674 | ||
675 | case JOB_TIMEOUT: | |
49b1d377 | 676 | unit_status_printf(u, ANSI_HIGHLIGHT_RED_ON " TIME " ANSI_HIGHLIGHT_OFF, format); |
e02cd6f7 LP |
677 | break; |
678 | ||
679 | case JOB_DONE: | |
680 | case JOB_FAILED: | |
076a24ad | 681 | unit_status_printf(u, ANSI_GREEN_ON " OK " ANSI_HIGHLIGHT_OFF, format); |
e02cd6f7 LP |
682 | break; |
683 | ||
684 | default: | |
685 | ; | |
686 | } | |
7cf82e0b MS |
687 | |
688 | } else if (t == JOB_VERIFY_ACTIVE) { | |
689 | ||
690 | /* When verify-active detects the unit is inactive, report it. | |
691 | * Most likely a DEPEND warning from a requisiting unit will | |
692 | * occur next and it's nice to see what was requisited. */ | |
693 | if (result == JOB_SKIPPED) | |
49b1d377 | 694 | unit_status_printf(u, ANSI_HIGHLIGHT_ON " INFO " ANSI_HIGHLIGHT_OFF, "%s is not active."); |
e02cd6f7 LP |
695 | } |
696 | } | |
697 | ||
877d54e9 LP |
698 | #pragma GCC diagnostic push |
699 | #pragma GCC diagnostic ignored "-Wformat-nonliteral" | |
700 | static void job_log_status_message(Unit *u, JobType t, JobResult result) { | |
701 | const char *format; | |
702 | char buf[LINE_MAX]; | |
703 | ||
704 | assert(u); | |
705 | assert(t >= 0); | |
706 | assert(t < _JOB_TYPE_MAX); | |
707 | ||
81270860 LP |
708 | /* Skip this if it goes to the console. since we already print |
709 | * to the console anyway... */ | |
710 | ||
711 | if (log_on_console()) | |
712 | return; | |
713 | ||
877d54e9 LP |
714 | format = job_get_status_message_format_try_harder(u, t, result); |
715 | if (!format) | |
716 | return; | |
717 | ||
718 | snprintf(buf, sizeof(buf), format, unit_description(u)); | |
719 | char_array_0(buf); | |
720 | ||
721 | if (t == JOB_START) { | |
722 | sd_id128_t mid; | |
723 | ||
724 | mid = result == JOB_DONE ? SD_MESSAGE_UNIT_STARTED : SD_MESSAGE_UNIT_FAILED; | |
bbc9006e MT |
725 | log_struct_unit(result == JOB_DONE ? LOG_INFO : LOG_ERR, |
726 | u->id, | |
1ca6783f | 727 | MESSAGE_ID(mid), |
877d54e9 LP |
728 | "RESULT=%s", job_result_to_string(result), |
729 | "MESSAGE=%s", buf, | |
730 | NULL); | |
731 | ||
732 | } else if (t == JOB_STOP) | |
bbc9006e MT |
733 | log_struct_unit(result == JOB_DONE ? LOG_INFO : LOG_ERR, |
734 | u->id, | |
1ca6783f | 735 | MESSAGE_ID(SD_MESSAGE_UNIT_STOPPED), |
877d54e9 LP |
736 | "RESULT=%s", job_result_to_string(result), |
737 | "MESSAGE=%s", buf, | |
738 | NULL); | |
739 | ||
740 | else if (t == JOB_RELOAD) | |
bbc9006e MT |
741 | log_struct_unit(result == JOB_DONE ? LOG_INFO : LOG_ERR, |
742 | u->id, | |
1ca6783f | 743 | MESSAGE_ID(SD_MESSAGE_UNIT_RELOADED), |
877d54e9 LP |
744 | "RESULT=%s", job_result_to_string(result), |
745 | "MESSAGE=%s", buf, | |
746 | NULL); | |
747 | } | |
748 | #pragma GCC diagnostic pop | |
749 | ||
5273510e | 750 | int job_finish_and_invalidate(Job *j, JobResult result, bool recursive) { |
87f0e418 LP |
751 | Unit *u; |
752 | Unit *other; | |
b866264a | 753 | JobType t; |
034c6ed7 | 754 | Iterator i; |
5cb5a6ff LP |
755 | |
756 | assert(j); | |
ac1135be | 757 | assert(j->installed); |
e0209d83 | 758 | assert(j->type < _JOB_TYPE_MAX_IN_TRANSACTION); |
5cb5a6ff | 759 | |
c6918296 MS |
760 | u = j->unit; |
761 | t = j->type; | |
762 | ||
763 | j->result = result; | |
764 | ||
637f8b8e MS |
765 | if (j->state == JOB_RUNNING) |
766 | j->manager->n_running_jobs--; | |
767 | ||
66870f90 ZJS |
768 | log_debug_unit(u->id, "Job %s/%s finished, result=%s", |
769 | u->id, job_type_to_string(t), job_result_to_string(result)); | |
c6918296 MS |
770 | |
771 | job_print_status_message(u, t, result); | |
877d54e9 | 772 | job_log_status_message(u, t, result); |
c6918296 | 773 | |
c1e1601e | 774 | job_add_to_dbus_queue(j); |
f50e0a01 | 775 | |
034c6ed7 | 776 | /* Patch restart jobs so that they become normal start jobs */ |
c6918296 | 777 | if (result == JOB_DONE && t == JOB_RESTART) { |
f50e0a01 | 778 | |
bbd1a837 | 779 | job_change_type(j, JOB_START); |
9c2d9caa | 780 | j->state = JOB_WAITING; |
cc42e081 LP |
781 | |
782 | job_add_to_run_queue(j); | |
57981b98 | 783 | |
57981b98 | 784 | goto finish; |
5cb5a6ff LP |
785 | } |
786 | ||
5d44db4a | 787 | if (result == JOB_FAILED) |
76bf48b7 LP |
788 | j->manager->n_failed_jobs ++; |
789 | ||
97e7d748 | 790 | job_uninstall(j); |
5cb5a6ff LP |
791 | job_free(j); |
792 | ||
793 | /* Fail depending jobs on failure */ | |
5273510e | 794 | if (result != JOB_DONE && recursive) { |
5cb5a6ff LP |
795 | |
796 | if (t == JOB_START || | |
e0209d83 | 797 | t == JOB_VERIFY_ACTIVE) { |
5cb5a6ff | 798 | |
ac155bb8 MS |
799 | SET_FOREACH(other, u->dependencies[UNIT_REQUIRED_BY], i) |
800 | if (other->job && | |
801 | (other->job->type == JOB_START || | |
e0209d83 | 802 | other->job->type == JOB_VERIFY_ACTIVE)) |
5273510e | 803 | job_finish_and_invalidate(other->job, JOB_DEPENDENCY, true); |
5cb5a6ff | 804 | |
ac155bb8 MS |
805 | SET_FOREACH(other, u->dependencies[UNIT_BOUND_BY], i) |
806 | if (other->job && | |
807 | (other->job->type == JOB_START || | |
e0209d83 | 808 | other->job->type == JOB_VERIFY_ACTIVE)) |
5273510e | 809 | job_finish_and_invalidate(other->job, JOB_DEPENDENCY, true); |
e6a3ff95 | 810 | |
ac155bb8 MS |
811 | SET_FOREACH(other, u->dependencies[UNIT_REQUIRED_BY_OVERRIDABLE], i) |
812 | if (other->job && | |
813 | !other->job->override && | |
814 | (other->job->type == JOB_START || | |
e0209d83 | 815 | other->job->type == JOB_VERIFY_ACTIVE)) |
5273510e | 816 | job_finish_and_invalidate(other->job, JOB_DEPENDENCY, true); |
5cb5a6ff LP |
817 | |
818 | } else if (t == JOB_STOP) { | |
819 | ||
ac155bb8 MS |
820 | SET_FOREACH(other, u->dependencies[UNIT_CONFLICTED_BY], i) |
821 | if (other->job && | |
822 | (other->job->type == JOB_START || | |
e0209d83 | 823 | other->job->type == JOB_VERIFY_ACTIVE)) |
5273510e | 824 | job_finish_and_invalidate(other->job, JOB_DEPENDENCY, true); |
5cb5a6ff LP |
825 | } |
826 | } | |
827 | ||
c0daa706 | 828 | /* Trigger OnFailure dependencies that are not generated by |
66870f90 | 829 | * the unit itself. We don't treat JOB_CANCELED as failure in |
c0daa706 LP |
830 | * this context. And JOB_FAILURE is already handled by the |
831 | * unit itself. */ | |
222ae6a8 | 832 | if (result == JOB_TIMEOUT || result == JOB_DEPENDENCY) { |
bbc9006e MT |
833 | log_struct_unit(LOG_NOTICE, |
834 | u->id, | |
66870f90 | 835 | "JOB_TYPE=%s", job_type_to_string(t), |
38c888a4 | 836 | "JOB_RESULT=%s", job_result_to_string(result), |
66870f90 | 837 | "Job %s/%s failed with result '%s'.", |
ac155bb8 | 838 | u->id, |
222ae6a8 | 839 | job_type_to_string(t), |
66870f90 ZJS |
840 | job_result_to_string(result), |
841 | NULL); | |
222ae6a8 | 842 | |
3ecaa09b | 843 | unit_start_on_failure(u); |
222ae6a8 | 844 | } |
c0daa706 | 845 | |
3ecaa09b LP |
846 | unit_trigger_notify(u); |
847 | ||
57981b98 | 848 | finish: |
5cb5a6ff | 849 | /* Try to start the next jobs that can be started */ |
ac155bb8 MS |
850 | SET_FOREACH(other, u->dependencies[UNIT_AFTER], i) |
851 | if (other->job) | |
852 | job_add_to_run_queue(other->job); | |
853 | SET_FOREACH(other, u->dependencies[UNIT_BEFORE], i) | |
854 | if (other->job) | |
855 | job_add_to_run_queue(other->job); | |
5cb5a6ff | 856 | |
ac155bb8 | 857 | manager_check_finished(u->manager); |
b0c918b9 | 858 | |
5273510e | 859 | return 0; |
5cb5a6ff | 860 | } |
034c6ed7 | 861 | |
faf919f1 | 862 | int job_start_timer(Job *j) { |
b92bea5d ZJS |
863 | struct itimerspec its = {}; |
864 | struct epoll_event ev = { | |
865 | .data.ptr = &j->timer_watch, | |
866 | .events = EPOLLIN, | |
867 | }; | |
faf919f1 | 868 | int fd, r; |
faf919f1 | 869 | |
ac155bb8 | 870 | if (j->unit->job_timeout <= 0 || |
faf919f1 LP |
871 | j->timer_watch.type == WATCH_JOB_TIMER) |
872 | return 0; | |
873 | ||
874 | assert(j->timer_watch.type == WATCH_INVALID); | |
875 | ||
876 | if ((fd = timerfd_create(CLOCK_MONOTONIC, TFD_NONBLOCK|TFD_CLOEXEC)) < 0) { | |
877 | r = -errno; | |
878 | goto fail; | |
879 | } | |
880 | ||
ac155bb8 | 881 | timespec_store(&its.it_value, j->unit->job_timeout); |
faf919f1 LP |
882 | |
883 | if (timerfd_settime(fd, 0, &its, NULL) < 0) { | |
884 | r = -errno; | |
885 | goto fail; | |
886 | } | |
887 | ||
faf919f1 LP |
888 | if (epoll_ctl(j->manager->epoll_fd, EPOLL_CTL_ADD, fd, &ev) < 0) { |
889 | r = -errno; | |
890 | goto fail; | |
891 | } | |
892 | ||
893 | j->timer_watch.type = WATCH_JOB_TIMER; | |
894 | j->timer_watch.fd = fd; | |
895 | j->timer_watch.data.job = j; | |
896 | ||
897 | return 0; | |
898 | ||
899 | fail: | |
900 | if (fd >= 0) | |
901 | close_nointr_nofail(fd); | |
902 | ||
903 | return r; | |
904 | } | |
905 | ||
c1e1601e | 906 | void job_add_to_run_queue(Job *j) { |
034c6ed7 | 907 | assert(j); |
ac1135be | 908 | assert(j->installed); |
034c6ed7 LP |
909 | |
910 | if (j->in_run_queue) | |
911 | return; | |
912 | ||
913 | LIST_PREPEND(Job, run_queue, j->manager->run_queue, j); | |
914 | j->in_run_queue = true; | |
915 | } | |
94f04347 | 916 | |
c1e1601e LP |
917 | void job_add_to_dbus_queue(Job *j) { |
918 | assert(j); | |
919 | assert(j->installed); | |
920 | ||
921 | if (j->in_dbus_queue) | |
922 | return; | |
923 | ||
a567261a LP |
924 | /* We don't check if anybody is subscribed here, since this |
925 | * job might just have been created and not yet assigned to a | |
926 | * connection/client. */ | |
94b6dfa2 | 927 | |
c1e1601e LP |
928 | LIST_PREPEND(Job, dbus_queue, j->manager->dbus_job_queue, j); |
929 | j->in_dbus_queue = true; | |
930 | } | |
931 | ||
ea430986 LP |
932 | char *job_dbus_path(Job *j) { |
933 | char *p; | |
934 | ||
935 | assert(j); | |
936 | ||
937 | if (asprintf(&p, "/org/freedesktop/systemd1/job/%lu", (unsigned long) j->id) < 0) | |
938 | return NULL; | |
939 | ||
940 | return p; | |
941 | } | |
942 | ||
faf919f1 LP |
943 | void job_timer_event(Job *j, uint64_t n_elapsed, Watch *w) { |
944 | assert(j); | |
945 | assert(w == &j->timer_watch); | |
946 | ||
66870f90 ZJS |
947 | log_warning_unit(j->unit->id, "Job %s/%s timed out.", |
948 | j->unit->id, job_type_to_string(j->type)); | |
5273510e | 949 | job_finish_and_invalidate(j, JOB_TIMEOUT, true); |
faf919f1 LP |
950 | } |
951 | ||
39a18c60 MS |
952 | int job_serialize(Job *j, FILE *f, FDSet *fds) { |
953 | fprintf(f, "job-id=%u\n", j->id); | |
954 | fprintf(f, "job-type=%s\n", job_type_to_string(j->type)); | |
955 | fprintf(f, "job-state=%s\n", job_state_to_string(j->state)); | |
956 | fprintf(f, "job-override=%s\n", yes_no(j->override)); | |
23ade460 | 957 | fprintf(f, "job-irreversible=%s\n", yes_no(j->irreversible)); |
39a18c60 MS |
958 | fprintf(f, "job-sent-dbus-new-signal=%s\n", yes_no(j->sent_dbus_new_signal)); |
959 | fprintf(f, "job-ignore-order=%s\n", yes_no(j->ignore_order)); | |
960 | /* Cannot save bus clients. Just note the fact that we're losing | |
961 | * them. job_send_message() will fallback to broadcasting. */ | |
962 | fprintf(f, "job-forgot-bus-clients=%s\n", | |
963 | yes_no(j->forgot_bus_clients || j->bus_client_list)); | |
964 | if (j->timer_watch.type == WATCH_JOB_TIMER) { | |
965 | int copy = fdset_put_dup(fds, j->timer_watch.fd); | |
966 | if (copy < 0) | |
967 | return copy; | |
968 | fprintf(f, "job-timer-watch-fd=%d\n", copy); | |
969 | } | |
970 | ||
971 | /* End marker */ | |
972 | fputc('\n', f); | |
973 | return 0; | |
974 | } | |
975 | ||
976 | int job_deserialize(Job *j, FILE *f, FDSet *fds) { | |
977 | for (;;) { | |
978 | char line[LINE_MAX], *l, *v; | |
979 | size_t k; | |
980 | ||
981 | if (!fgets(line, sizeof(line), f)) { | |
982 | if (feof(f)) | |
983 | return 0; | |
984 | return -errno; | |
985 | } | |
986 | ||
987 | char_array_0(line); | |
988 | l = strstrip(line); | |
989 | ||
990 | /* End marker */ | |
991 | if (l[0] == 0) | |
992 | return 0; | |
993 | ||
994 | k = strcspn(l, "="); | |
995 | ||
996 | if (l[k] == '=') { | |
997 | l[k] = 0; | |
998 | v = l+k+1; | |
999 | } else | |
1000 | v = l+k; | |
1001 | ||
1002 | if (streq(l, "job-id")) { | |
1003 | if (safe_atou32(v, &j->id) < 0) | |
1004 | log_debug("Failed to parse job id value %s", v); | |
1005 | } else if (streq(l, "job-type")) { | |
1006 | JobType t = job_type_from_string(v); | |
1007 | if (t < 0) | |
1008 | log_debug("Failed to parse job type %s", v); | |
e0209d83 MS |
1009 | else if (t >= _JOB_TYPE_MAX_IN_TRANSACTION) |
1010 | log_debug("Cannot deserialize job of type %s", v); | |
39a18c60 MS |
1011 | else |
1012 | j->type = t; | |
1013 | } else if (streq(l, "job-state")) { | |
1014 | JobState s = job_state_from_string(v); | |
1015 | if (s < 0) | |
1016 | log_debug("Failed to parse job state %s", v); | |
1017 | else | |
1018 | j->state = s; | |
1019 | } else if (streq(l, "job-override")) { | |
1020 | int b = parse_boolean(v); | |
1021 | if (b < 0) | |
1022 | log_debug("Failed to parse job override flag %s", v); | |
1023 | else | |
1024 | j->override = j->override || b; | |
23ade460 MS |
1025 | } else if (streq(l, "job-irreversible")) { |
1026 | int b = parse_boolean(v); | |
1027 | if (b < 0) | |
1028 | log_debug("Failed to parse job irreversible flag %s", v); | |
1029 | else | |
1030 | j->irreversible = j->irreversible || b; | |
39a18c60 MS |
1031 | } else if (streq(l, "job-sent-dbus-new-signal")) { |
1032 | int b = parse_boolean(v); | |
1033 | if (b < 0) | |
1034 | log_debug("Failed to parse job sent_dbus_new_signal flag %s", v); | |
1035 | else | |
1036 | j->sent_dbus_new_signal = j->sent_dbus_new_signal || b; | |
1037 | } else if (streq(l, "job-ignore-order")) { | |
1038 | int b = parse_boolean(v); | |
1039 | if (b < 0) | |
1040 | log_debug("Failed to parse job ignore_order flag %s", v); | |
1041 | else | |
1042 | j->ignore_order = j->ignore_order || b; | |
1043 | } else if (streq(l, "job-forgot-bus-clients")) { | |
1044 | int b = parse_boolean(v); | |
1045 | if (b < 0) | |
1046 | log_debug("Failed to parse job forgot_bus_clients flag %s", v); | |
1047 | else | |
1048 | j->forgot_bus_clients = j->forgot_bus_clients || b; | |
1049 | } else if (streq(l, "job-timer-watch-fd")) { | |
1050 | int fd; | |
1051 | if (safe_atoi(v, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
1052 | log_debug("Failed to parse job-timer-watch-fd value %s", v); | |
1053 | else { | |
1054 | if (j->timer_watch.type == WATCH_JOB_TIMER) | |
1055 | close_nointr_nofail(j->timer_watch.fd); | |
1056 | ||
1057 | j->timer_watch.type = WATCH_JOB_TIMER; | |
1058 | j->timer_watch.fd = fdset_remove(fds, fd); | |
1059 | j->timer_watch.data.job = j; | |
1060 | } | |
1061 | } | |
1062 | } | |
1063 | } | |
1064 | ||
1065 | int job_coldplug(Job *j) { | |
b92bea5d ZJS |
1066 | struct epoll_event ev = { |
1067 | .data.ptr = &j->timer_watch, | |
1068 | .events = EPOLLIN, | |
1069 | }; | |
39a18c60 MS |
1070 | |
1071 | if (j->timer_watch.type != WATCH_JOB_TIMER) | |
1072 | return 0; | |
1073 | ||
39a18c60 MS |
1074 | if (epoll_ctl(j->manager->epoll_fd, EPOLL_CTL_ADD, j->timer_watch.fd, &ev) < 0) |
1075 | return -errno; | |
1076 | ||
1077 | return 0; | |
1078 | } | |
1079 | ||
c65eb836 LP |
1080 | void job_shutdown_magic(Job *j) { |
1081 | assert(j); | |
1082 | ||
1083 | /* The shutdown target gets some special treatment here: we | |
1084 | * tell the kernel to begin with flushing its disk caches, to | |
1085 | * optimize shutdown time a bit. Ideally we wouldn't hardcode | |
1086 | * this magic into PID 1. However all other processes aren't | |
1087 | * options either since they'd exit much sooner than PID 1 and | |
1088 | * asynchronous sync() would cause their exit to be | |
1089 | * delayed. */ | |
1090 | ||
c2756a68 | 1091 | if (j->type != JOB_START) |
c65eb836 LP |
1092 | return; |
1093 | ||
c2756a68 LP |
1094 | if (j->unit->manager->running_as != SYSTEMD_SYSTEM) |
1095 | return; | |
1096 | ||
1097 | if (!unit_has_name(j->unit, SPECIAL_SHUTDOWN_TARGET)) | |
c65eb836 LP |
1098 | return; |
1099 | ||
1100 | if (detect_container(NULL) > 0) | |
1101 | return; | |
1102 | ||
1103 | asynchronous_sync(); | |
1104 | } | |
1105 | ||
94f04347 LP |
1106 | static const char* const job_state_table[_JOB_STATE_MAX] = { |
1107 | [JOB_WAITING] = "waiting", | |
1108 | [JOB_RUNNING] = "running" | |
1109 | }; | |
1110 | ||
1111 | DEFINE_STRING_TABLE_LOOKUP(job_state, JobState); | |
1112 | ||
1113 | static const char* const job_type_table[_JOB_TYPE_MAX] = { | |
1114 | [JOB_START] = "start", | |
1115 | [JOB_VERIFY_ACTIVE] = "verify-active", | |
1116 | [JOB_STOP] = "stop", | |
1117 | [JOB_RELOAD] = "reload", | |
1118 | [JOB_RELOAD_OR_START] = "reload-or-start", | |
1119 | [JOB_RESTART] = "restart", | |
1120 | [JOB_TRY_RESTART] = "try-restart", | |
e0209d83 | 1121 | [JOB_NOP] = "nop", |
94f04347 LP |
1122 | }; |
1123 | ||
1124 | DEFINE_STRING_TABLE_LOOKUP(job_type, JobType); | |
b548631a LP |
1125 | |
1126 | static const char* const job_mode_table[_JOB_MODE_MAX] = { | |
1127 | [JOB_FAIL] = "fail", | |
c497c7a9 | 1128 | [JOB_REPLACE] = "replace", |
23ade460 | 1129 | [JOB_REPLACE_IRREVERSIBLY] = "replace-irreversibly", |
e67c3609 | 1130 | [JOB_ISOLATE] = "isolate", |
cebe0d41 LP |
1131 | [JOB_IGNORE_DEPENDENCIES] = "ignore-dependencies", |
1132 | [JOB_IGNORE_REQUIREMENTS] = "ignore-requirements" | |
b548631a LP |
1133 | }; |
1134 | ||
1135 | DEFINE_STRING_TABLE_LOOKUP(job_mode, JobMode); | |
5d44db4a LP |
1136 | |
1137 | static const char* const job_result_table[_JOB_RESULT_MAX] = { | |
1138 | [JOB_DONE] = "done", | |
1139 | [JOB_CANCELED] = "canceled", | |
1140 | [JOB_TIMEOUT] = "timeout", | |
1141 | [JOB_FAILED] = "failed", | |
d68201e9 LP |
1142 | [JOB_DEPENDENCY] = "dependency", |
1143 | [JOB_SKIPPED] = "skipped" | |
5d44db4a LP |
1144 | }; |
1145 | ||
1146 | DEFINE_STRING_TABLE_LOOKUP(job_result, JobResult); |