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53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
a7334b09 | 2 | |
1ffba6fe | 3 | #include <errno.h> |
60918275 | 4 | |
718db961 LP |
5 | #include "sd-id128.h" |
6 | #include "sd-messages.h" | |
4f5dd394 | 7 | |
b5efdb8a | 8 | #include "alloc-util.h" |
f485606b | 9 | #include "async.h" |
4f5dd394 | 10 | #include "dbus-job.h" |
8f8f05a9 | 11 | #include "dbus.h" |
4f5dd394 | 12 | #include "escape.h" |
8948b341 | 13 | #include "fileio.h" |
6bedfcbb | 14 | #include "job.h" |
4f5dd394 LP |
15 | #include "log.h" |
16 | #include "macro.h" | |
6bedfcbb | 17 | #include "parse-util.h" |
d68c645b | 18 | #include "serialize.h" |
4f5dd394 LP |
19 | #include "set.h" |
20 | #include "special.h" | |
d054f0a4 | 21 | #include "stdio-util.h" |
8b43440b | 22 | #include "string-table.h" |
07630cea | 23 | #include "string-util.h" |
4f5dd394 | 24 | #include "strv.h" |
288a74cc | 25 | #include "terminal-util.h" |
4f5dd394 LP |
26 | #include "unit.h" |
27 | #include "virt.h" | |
97e6a119 | 28 | |
39a18c60 | 29 | Job* job_new_raw(Unit *unit) { |
60918275 LP |
30 | Job *j; |
31 | ||
39a18c60 MS |
32 | /* used for deserialization */ |
33 | ||
87f0e418 | 34 | assert(unit); |
60918275 | 35 | |
08ac00f2 | 36 | j = new(Job, 1); |
39a18c60 | 37 | if (!j) |
60918275 LP |
38 | return NULL; |
39 | ||
08ac00f2 LP |
40 | *j = (Job) { |
41 | .manager = unit->manager, | |
42 | .unit = unit, | |
43 | .type = _JOB_TYPE_INVALID, | |
44 | }; | |
faf919f1 | 45 | |
39a18c60 MS |
46 | return j; |
47 | } | |
48 | ||
49 | Job* job_new(Unit *unit, JobType type) { | |
50 | Job *j; | |
51 | ||
52 | assert(type < _JOB_TYPE_MAX); | |
53 | ||
54 | j = job_new_raw(unit); | |
55 | if (!j) | |
56 | return NULL; | |
57 | ||
58 | j->id = j->manager->current_job_id++; | |
59 | j->type = type; | |
60 | ||
e5b5ae50 | 61 | /* We don't link it here, that's what job_dependency() is for */ |
60918275 LP |
62 | |
63 | return j; | |
64 | } | |
65 | ||
a7a7163d | 66 | void job_unlink(Job *j) { |
97e7d748 MS |
67 | assert(j); |
68 | assert(!j->installed); | |
02a3bcc6 MS |
69 | assert(!j->transaction_prev); |
70 | assert(!j->transaction_next); | |
71 | assert(!j->subject_list); | |
72 | assert(!j->object_list); | |
60918275 | 73 | |
a7a7163d | 74 | if (j->in_run_queue) { |
71fda00f | 75 | LIST_REMOVE(run_queue, j->manager->run_queue, j); |
a7a7163d DT |
76 | j->in_run_queue = false; |
77 | } | |
c1e1601e | 78 | |
a7a7163d | 79 | if (j->in_dbus_queue) { |
71fda00f | 80 | LIST_REMOVE(dbus_queue, j->manager->dbus_job_queue, j); |
a7a7163d DT |
81 | j->in_dbus_queue = false; |
82 | } | |
c1e1601e | 83 | |
a7a7163d | 84 | if (j->in_gc_queue) { |
c5a97ed1 | 85 | LIST_REMOVE(gc_queue, j->manager->gc_job_queue, j); |
a7a7163d DT |
86 | j->in_gc_queue = false; |
87 | } | |
c5a97ed1 | 88 | |
a7a7163d DT |
89 | j->timer_event_source = sd_event_source_unref(j->timer_event_source); |
90 | } | |
91 | ||
92 | void job_free(Job *j) { | |
93 | assert(j); | |
94 | assert(!j->installed); | |
95 | assert(!j->transaction_prev); | |
96 | assert(!j->transaction_next); | |
97 | assert(!j->subject_list); | |
98 | assert(!j->object_list); | |
99 | ||
100 | job_unlink(j); | |
faf919f1 | 101 | |
1a465207 | 102 | sd_bus_track_unref(j->bus_track); |
b39a2770 | 103 | strv_free(j->deserialized_clients); |
faf919f1 | 104 | |
60918275 LP |
105 | free(j); |
106 | } | |
a66d02c3 | 107 | |
9c3349e2 LP |
108 | static void job_set_state(Job *j, JobState state) { |
109 | assert(j); | |
110 | assert(state >= 0); | |
111 | assert(state < _JOB_STATE_MAX); | |
112 | ||
113 | if (j->state == state) | |
114 | return; | |
115 | ||
116 | j->state = state; | |
117 | ||
118 | if (!j->installed) | |
119 | return; | |
120 | ||
121 | if (j->state == JOB_RUNNING) | |
122 | j->unit->manager->n_running_jobs++; | |
123 | else { | |
124 | assert(j->state == JOB_WAITING); | |
125 | assert(j->unit->manager->n_running_jobs > 0); | |
126 | ||
127 | j->unit->manager->n_running_jobs--; | |
128 | ||
129 | if (j->unit->manager->n_running_jobs <= 0) | |
130 | j->unit->manager->jobs_in_progress_event_source = sd_event_source_unref(j->unit->manager->jobs_in_progress_event_source); | |
131 | } | |
132 | } | |
133 | ||
05d576f1 | 134 | void job_uninstall(Job *j) { |
e0209d83 MS |
135 | Job **pj; |
136 | ||
05d576f1 | 137 | assert(j->installed); |
e0209d83 | 138 | |
9c3349e2 LP |
139 | job_set_state(j, JOB_WAITING); |
140 | ||
e0209d83 MS |
141 | pj = (j->type == JOB_NOP) ? &j->unit->nop_job : &j->unit->job; |
142 | assert(*pj == j); | |
143 | ||
05d576f1 MS |
144 | /* Detach from next 'bigger' objects */ |
145 | ||
39a18c60 | 146 | /* daemon-reload should be transparent to job observers */ |
2c289ea8 | 147 | if (!MANAGER_IS_RELOADING(j->manager)) |
39a18c60 | 148 | bus_job_send_removed_signal(j); |
05d576f1 | 149 | |
e0209d83 MS |
150 | *pj = NULL; |
151 | ||
d6a093d0 | 152 | unit_add_to_gc_queue(j->unit); |
05d576f1 MS |
153 | |
154 | hashmap_remove(j->manager->jobs, UINT32_TO_PTR(j->id)); | |
155 | j->installed = false; | |
156 | } | |
157 | ||
656bbffc MS |
158 | static bool job_type_allows_late_merge(JobType t) { |
159 | /* Tells whether it is OK to merge a job of type 't' with an already | |
160 | * running job. | |
161 | * Reloads cannot be merged this way. Think of the sequence: | |
162 | * 1. Reload of a daemon is in progress; the daemon has already loaded | |
163 | * its config file, but hasn't completed the reload operation yet. | |
164 | * 2. Edit foo's config file. | |
165 | * 3. Trigger another reload to have the daemon use the new config. | |
166 | * Should the second reload job be merged into the first one, the daemon | |
167 | * would not know about the new config. | |
168 | * JOB_RESTART jobs on the other hand can be merged, because they get | |
169 | * patched into JOB_START after stopping the unit. So if we see a | |
170 | * JOB_RESTART running, it means the unit hasn't stopped yet and at | |
171 | * this time the merge is still allowed. */ | |
e0209d83 | 172 | return t != JOB_RELOAD; |
656bbffc MS |
173 | } |
174 | ||
175 | static void job_merge_into_installed(Job *j, Job *other) { | |
176 | assert(j->installed); | |
177 | assert(j->unit == other->unit); | |
178 | ||
e0209d83 | 179 | if (j->type != JOB_NOP) |
53a2383b | 180 | assert_se(job_type_merge_and_collapse(&j->type, other->type, j->unit) == 0); |
e0209d83 MS |
181 | else |
182 | assert(other->type == JOB_NOP); | |
656bbffc | 183 | |
23ade460 | 184 | j->irreversible = j->irreversible || other->irreversible; |
e45460d6 | 185 | j->ignore_order = j->ignore_order || other->ignore_order; |
656bbffc MS |
186 | } |
187 | ||
188 | Job* job_install(Job *j) { | |
e0209d83 MS |
189 | Job **pj; |
190 | Job *uj; | |
05d576f1 | 191 | |
656bbffc | 192 | assert(!j->installed); |
e0209d83 | 193 | assert(j->type < _JOB_TYPE_MAX_IN_TRANSACTION); |
9c3349e2 | 194 | assert(j->state == JOB_WAITING); |
e0209d83 MS |
195 | |
196 | pj = (j->type == JOB_NOP) ? &j->unit->nop_job : &j->unit->job; | |
197 | uj = *pj; | |
656bbffc | 198 | |
05d576f1 | 199 | if (uj) { |
61da906a | 200 | if (job_type_is_conflicting(uj->type, j->type)) |
833f92ad | 201 | job_finish_and_invalidate(uj, JOB_CANCELED, false, false); |
656bbffc MS |
202 | else { |
203 | /* not conflicting, i.e. mergeable */ | |
204 | ||
61da906a | 205 | if (uj->state == JOB_WAITING || |
656bbffc MS |
206 | (job_type_allows_late_merge(j->type) && job_type_is_superset(uj->type, j->type))) { |
207 | job_merge_into_installed(uj, j); | |
f2341e0a | 208 | log_unit_debug(uj->unit, |
66870f90 ZJS |
209 | "Merged into installed job %s/%s as %u", |
210 | uj->unit->id, job_type_to_string(uj->type), (unsigned) uj->id); | |
656bbffc MS |
211 | return uj; |
212 | } else { | |
213 | /* already running and not safe to merge into */ | |
214 | /* Patch uj to become a merged job and re-run it. */ | |
215 | /* XXX It should be safer to queue j to run after uj finishes, but it is | |
216 | * not currently possible to have more than one installed job per unit. */ | |
217 | job_merge_into_installed(uj, j); | |
f2341e0a | 218 | log_unit_debug(uj->unit, |
66870f90 ZJS |
219 | "Merged into running job, re-running: %s/%s as %u", |
220 | uj->unit->id, job_type_to_string(uj->type), (unsigned) uj->id); | |
9c3349e2 LP |
221 | |
222 | job_set_state(uj, JOB_WAITING); | |
656bbffc MS |
223 | return uj; |
224 | } | |
225 | } | |
05d576f1 MS |
226 | } |
227 | ||
656bbffc | 228 | /* Install the job */ |
e0209d83 | 229 | *pj = j; |
05d576f1 | 230 | j->installed = true; |
9c3349e2 | 231 | |
313cefa1 | 232 | j->manager->n_installed_jobs++; |
f2341e0a | 233 | log_unit_debug(j->unit, |
66870f90 ZJS |
234 | "Installed new job %s/%s as %u", |
235 | j->unit->id, job_type_to_string(j->type), (unsigned) j->id); | |
c5a97ed1 LP |
236 | |
237 | job_add_to_gc_queue(j); | |
238 | ||
656bbffc | 239 | return j; |
05d576f1 MS |
240 | } |
241 | ||
e0209d83 MS |
242 | int job_install_deserialized(Job *j) { |
243 | Job **pj; | |
244 | ||
39a18c60 MS |
245 | assert(!j->installed); |
246 | ||
e0209d83 MS |
247 | if (j->type < 0 || j->type >= _JOB_TYPE_MAX_IN_TRANSACTION) { |
248 | log_debug("Invalid job type %s in deserialization.", strna(job_type_to_string(j->type))); | |
249 | return -EINVAL; | |
250 | } | |
251 | ||
252 | pj = (j->type == JOB_NOP) ? &j->unit->nop_job : &j->unit->job; | |
e0209d83 | 253 | if (*pj) { |
f2341e0a | 254 | log_unit_debug(j->unit, "Unit already has a job installed. Not installing deserialized job."); |
e0209d83 | 255 | return -EEXIST; |
39a18c60 | 256 | } |
9c3349e2 | 257 | |
e0209d83 | 258 | *pj = j; |
39a18c60 | 259 | j->installed = true; |
a7a7163d | 260 | j->reloaded = true; |
9c3349e2 LP |
261 | |
262 | if (j->state == JOB_RUNNING) | |
263 | j->unit->manager->n_running_jobs++; | |
264 | ||
f2341e0a | 265 | log_unit_debug(j->unit, |
66870f90 ZJS |
266 | "Reinstalled deserialized job %s/%s as %u", |
267 | j->unit->id, job_type_to_string(j->type), (unsigned) j->id); | |
e0209d83 | 268 | return 0; |
39a18c60 MS |
269 | } |
270 | ||
1da4264f | 271 | JobDependency* job_dependency_new(Job *subject, Job *object, bool matters, bool conflicts) { |
e5b5ae50 LP |
272 | JobDependency *l; |
273 | ||
274 | assert(object); | |
275 | ||
276 | /* Adds a new job link, which encodes that the 'subject' job | |
277 | * needs the 'object' job in some way. If 'subject' is NULL | |
278 | * this means the 'anchor' job (i.e. the one the user | |
35b8ca3a | 279 | * explicitly asked for) is the requester. */ |
e5b5ae50 | 280 | |
0a23a627 LP |
281 | l = new0(JobDependency, 1); |
282 | if (!l) | |
e5b5ae50 LP |
283 | return NULL; |
284 | ||
285 | l->subject = subject; | |
286 | l->object = object; | |
287 | l->matters = matters; | |
69dd2852 | 288 | l->conflicts = conflicts; |
e5b5ae50 | 289 | |
44d8db9e | 290 | if (subject) |
71fda00f | 291 | LIST_PREPEND(subject, subject->subject_list, l); |
e5b5ae50 | 292 | |
71fda00f | 293 | LIST_PREPEND(object, object->object_list, l); |
e5b5ae50 LP |
294 | |
295 | return l; | |
296 | } | |
297 | ||
1da4264f | 298 | void job_dependency_free(JobDependency *l) { |
e5b5ae50 LP |
299 | assert(l); |
300 | ||
44d8db9e | 301 | if (l->subject) |
71fda00f | 302 | LIST_REMOVE(subject, l->subject->subject_list, l); |
e5b5ae50 | 303 | |
71fda00f | 304 | LIST_REMOVE(object, l->object->object_list, l); |
e5b5ae50 LP |
305 | |
306 | free(l); | |
307 | } | |
308 | ||
1ffba6fe | 309 | void job_dump(Job *j, FILE*f, const char *prefix) { |
a66d02c3 LP |
310 | assert(j); |
311 | assert(f); | |
312 | ||
ad5d4b17 | 313 | prefix = strempty(prefix); |
9eb63b3c | 314 | |
ceed3570 | 315 | fprintf(f, |
40d50879 LP |
316 | "%s-> Job %u:\n" |
317 | "%s\tAction: %s -> %s\n" | |
5cb5a6ff | 318 | "%s\tState: %s\n" |
f698d99c ZJS |
319 | "%s\tIrreversible: %s\n" |
320 | "%s\tMay GC: %s\n", | |
ceed3570 | 321 | prefix, j->id, |
ac155bb8 | 322 | prefix, j->unit->id, job_type_to_string(j->type), |
94f04347 | 323 | prefix, job_state_to_string(j->state), |
f698d99c ZJS |
324 | prefix, yes_no(j->irreversible), |
325 | prefix, yes_no(job_may_gc(j))); | |
a66d02c3 | 326 | } |
e5b5ae50 | 327 | |
348e27fe MS |
328 | /* |
329 | * Merging is commutative, so imagine the matrix as symmetric. We store only | |
330 | * its lower triangle to avoid duplication. We don't store the main diagonal, | |
331 | * because A merged with A is simply A. | |
332 | * | |
e0209d83 MS |
333 | * If the resulting type is collapsed immediately afterwards (to get rid of |
334 | * the JOB_RELOAD_OR_START, which lies outside the lookup function's domain), | |
335 | * the following properties hold: | |
336 | * | |
48b4eab4 | 337 | * Merging is associative! A merged with B, and then merged with C is the same |
103635db | 338 | * as A merged with the result of B merged with C. |
348e27fe MS |
339 | * |
340 | * Mergeability is transitive! If A can be merged with B and B with C then | |
341 | * A also with C. | |
342 | * | |
343 | * Also, if A merged with B cannot be merged with C, then either A or B cannot | |
344 | * be merged with C either. | |
345 | */ | |
346 | static const JobType job_merging_table[] = { | |
e0209d83 MS |
347 | /* What \ With * JOB_START JOB_VERIFY_ACTIVE JOB_STOP JOB_RELOAD */ |
348 | /*********************************************************************************/ | |
348e27fe MS |
349 | /*JOB_START */ |
350 | /*JOB_VERIFY_ACTIVE */ JOB_START, | |
351 | /*JOB_STOP */ -1, -1, | |
352 | /*JOB_RELOAD */ JOB_RELOAD_OR_START, JOB_RELOAD, -1, | |
e0209d83 | 353 | /*JOB_RESTART */ JOB_RESTART, JOB_RESTART, -1, JOB_RESTART, |
348e27fe MS |
354 | }; |
355 | ||
356 | JobType job_type_lookup_merge(JobType a, JobType b) { | |
e0209d83 MS |
357 | assert_cc(ELEMENTSOF(job_merging_table) == _JOB_TYPE_MAX_MERGING * (_JOB_TYPE_MAX_MERGING - 1) / 2); |
358 | assert(a >= 0 && a < _JOB_TYPE_MAX_MERGING); | |
359 | assert(b >= 0 && b < _JOB_TYPE_MAX_MERGING); | |
1ffba6fe LP |
360 | |
361 | if (a == b) | |
348e27fe | 362 | return a; |
1ffba6fe | 363 | |
348e27fe MS |
364 | if (a < b) { |
365 | JobType tmp = a; | |
366 | a = b; | |
367 | b = tmp; | |
1ffba6fe | 368 | } |
e094e853 | 369 | |
348e27fe | 370 | return job_merging_table[(a - 1) * a / 2 + b]; |
e094e853 | 371 | } |
cd2dbd7d | 372 | |
593fbdd2 LP |
373 | bool job_type_is_redundant(JobType a, UnitActiveState b) { |
374 | switch (a) { | |
375 | ||
376 | case JOB_START: | |
3742095b | 377 | return IN_SET(b, UNIT_ACTIVE, UNIT_RELOADING); |
593fbdd2 LP |
378 | |
379 | case JOB_STOP: | |
3742095b | 380 | return IN_SET(b, UNIT_INACTIVE, UNIT_FAILED); |
593fbdd2 LP |
381 | |
382 | case JOB_VERIFY_ACTIVE: | |
3742095b | 383 | return IN_SET(b, UNIT_ACTIVE, UNIT_RELOADING); |
593fbdd2 LP |
384 | |
385 | case JOB_RELOAD: | |
386 | return | |
032ff4af | 387 | b == UNIT_RELOADING; |
593fbdd2 | 388 | |
593fbdd2 LP |
389 | case JOB_RESTART: |
390 | return | |
391 | b == UNIT_ACTIVATING; | |
392 | ||
7e803f5e MS |
393 | case JOB_NOP: |
394 | return true; | |
395 | ||
e0209d83 MS |
396 | default: |
397 | assert_not_reached("Invalid job type"); | |
398 | } | |
399 | } | |
400 | ||
c6497ccb | 401 | JobType job_type_collapse(JobType t, Unit *u) { |
e0209d83 MS |
402 | UnitActiveState s; |
403 | ||
c6497ccb | 404 | switch (t) { |
e0209d83 | 405 | |
593fbdd2 | 406 | case JOB_TRY_RESTART: |
e0209d83 MS |
407 | s = unit_active_state(u); |
408 | if (UNIT_IS_INACTIVE_OR_DEACTIVATING(s)) | |
c6497ccb LP |
409 | return JOB_NOP; |
410 | ||
411 | return JOB_RESTART; | |
e0209d83 | 412 | |
3282591d LP |
413 | case JOB_TRY_RELOAD: |
414 | s = unit_active_state(u); | |
415 | if (UNIT_IS_INACTIVE_OR_DEACTIVATING(s)) | |
416 | return JOB_NOP; | |
417 | ||
418 | return JOB_RELOAD; | |
419 | ||
e0209d83 MS |
420 | case JOB_RELOAD_OR_START: |
421 | s = unit_active_state(u); | |
422 | if (UNIT_IS_INACTIVE_OR_DEACTIVATING(s)) | |
c6497ccb LP |
423 | return JOB_START; |
424 | ||
425 | return JOB_RELOAD; | |
593fbdd2 LP |
426 | |
427 | default: | |
c6497ccb | 428 | return t; |
593fbdd2 LP |
429 | } |
430 | } | |
431 | ||
e0209d83 | 432 | int job_type_merge_and_collapse(JobType *a, JobType b, Unit *u) { |
c6497ccb LP |
433 | JobType t; |
434 | ||
435 | t = job_type_lookup_merge(*a, b); | |
e0209d83 MS |
436 | if (t < 0) |
437 | return -EEXIST; | |
c6497ccb LP |
438 | |
439 | *a = job_type_collapse(t, u); | |
e0209d83 MS |
440 | return 0; |
441 | } | |
442 | ||
9588bc32 | 443 | static bool job_is_runnable(Job *j) { |
034c6ed7 | 444 | Iterator i; |
87f0e418 | 445 | Unit *other; |
eef85c4a | 446 | void *v; |
5cb5a6ff LP |
447 | |
448 | assert(j); | |
ac1135be | 449 | assert(j->installed); |
5cb5a6ff | 450 | |
87f0e418 | 451 | /* Checks whether there is any job running for the units this |
5cb5a6ff | 452 | * job needs to be running after (in the case of a 'positive' |
e67c3609 LP |
453 | * job type) or before (in the case of a 'negative' job |
454 | * type. */ | |
455 | ||
66ca4ec4 LP |
456 | /* Note that unit types have a say in what is runnable, |
457 | * too. For example, if they return -EAGAIN from | |
458 | * unit_start() they can indicate they are not | |
459 | * runnable yet. */ | |
460 | ||
e67c3609 | 461 | /* First check if there is an override */ |
cebe0d41 | 462 | if (j->ignore_order) |
e67c3609 | 463 | return true; |
5cb5a6ff | 464 | |
e0209d83 MS |
465 | if (j->type == JOB_NOP) |
466 | return true; | |
467 | ||
0a23a627 | 468 | if (IN_SET(j->type, JOB_START, JOB_VERIFY_ACTIVE, JOB_RELOAD)) { |
5cb5a6ff | 469 | /* Immediate result is that the job is or might be |
fc08079e | 470 | * started. In this case let's wait for the |
5cb5a6ff LP |
471 | * dependencies, regardless whether they are |
472 | * starting or stopping something. */ | |
473 | ||
eef85c4a | 474 | HASHMAP_FOREACH_KEY(v, other, j->unit->dependencies[UNIT_AFTER], i) |
ac155bb8 | 475 | if (other->job) |
5cb5a6ff LP |
476 | return false; |
477 | } | |
478 | ||
479 | /* Also, if something else is being stopped and we should | |
fc08079e | 480 | * change state after it, then let's wait. */ |
5cb5a6ff | 481 | |
eef85c4a | 482 | HASHMAP_FOREACH_KEY(v, other, j->unit->dependencies[UNIT_BEFORE], i) |
ac155bb8 | 483 | if (other->job && |
0a23a627 | 484 | IN_SET(other->job->type, JOB_STOP, JOB_RESTART)) |
5cb5a6ff LP |
485 | return false; |
486 | ||
487 | /* This means that for a service a and a service b where b | |
488 | * shall be started after a: | |
489 | * | |
490 | * start a + start b → 1st step start a, 2nd step start b | |
491 | * start a + stop b → 1st step stop b, 2nd step start a | |
492 | * stop a + start b → 1st step stop a, 2nd step start b | |
493 | * stop a + stop b → 1st step stop b, 2nd step stop a | |
494 | * | |
495 | * This has the side effect that restarts are properly | |
496 | * synchronized too. */ | |
497 | ||
498 | return true; | |
499 | } | |
500 | ||
bbd1a837 | 501 | static void job_change_type(Job *j, JobType newtype) { |
f2341e0a LP |
502 | assert(j); |
503 | ||
504 | log_unit_debug(j->unit, | |
66870f90 ZJS |
505 | "Converting job %s/%s -> %s/%s", |
506 | j->unit->id, job_type_to_string(j->type), | |
507 | j->unit->id, job_type_to_string(newtype)); | |
bbd1a837 MS |
508 | |
509 | j->type = newtype; | |
510 | } | |
511 | ||
33a3fdd9 | 512 | _pure_ static const char* job_get_begin_status_message_format(Unit *u, JobType t) { |
33a3fdd9 | 513 | const UnitStatusMessageFormats *format_table; |
a69b3872 | 514 | const char *format; |
33a3fdd9 LP |
515 | |
516 | assert(u); | |
a69b3872 LP |
517 | |
518 | if (t == JOB_RELOAD) | |
519 | return "Reloading %s."; | |
520 | ||
521 | assert(IN_SET(t, JOB_START, JOB_STOP)); | |
522 | ||
523 | format_table = &UNIT_VTABLE(u)->status_message_formats; | |
524 | if (format_table) { | |
525 | format = format_table->starting_stopping[t == JOB_STOP]; | |
526 | if (format) | |
527 | return format; | |
33a3fdd9 LP |
528 | } |
529 | ||
530 | /* Return generic strings */ | |
531 | if (t == JOB_START) | |
532 | return "Starting %s."; | |
a69b3872 LP |
533 | else { |
534 | assert(t == JOB_STOP); | |
33a3fdd9 | 535 | return "Stopping %s."; |
a69b3872 | 536 | } |
33a3fdd9 LP |
537 | } |
538 | ||
539 | static void job_print_begin_status_message(Unit *u, JobType t) { | |
540 | const char *format; | |
541 | ||
542 | assert(u); | |
543 | ||
544 | /* Reload status messages have traditionally not been printed to console. */ | |
545 | if (!IN_SET(t, JOB_START, JOB_STOP)) | |
546 | return; | |
547 | ||
548 | format = job_get_begin_status_message_format(u, t); | |
549 | ||
550 | DISABLE_WARNING_FORMAT_NONLITERAL; | |
551 | unit_status_printf(u, "", format); | |
552 | REENABLE_WARNING; | |
553 | } | |
554 | ||
b344b363 | 555 | static void job_log_begin_status_message(Unit *u, uint32_t job_id, JobType t) { |
33a3fdd9 LP |
556 | const char *format, *mid; |
557 | char buf[LINE_MAX]; | |
558 | ||
559 | assert(u); | |
b344b363 LP |
560 | assert(t >= 0); |
561 | assert(t < _JOB_TYPE_MAX); | |
33a3fdd9 LP |
562 | |
563 | if (!IN_SET(t, JOB_START, JOB_STOP, JOB_RELOAD)) | |
564 | return; | |
565 | ||
0e2b4a82 | 566 | if (log_on_console()) /* Skip this if it would only go on the console anyway */ |
33a3fdd9 LP |
567 | return; |
568 | ||
569 | /* We log status messages for all units and all operations. */ | |
570 | ||
571 | format = job_get_begin_status_message_format(u, t); | |
572 | ||
573 | DISABLE_WARNING_FORMAT_NONLITERAL; | |
574 | (void) snprintf(buf, sizeof buf, format, unit_description(u)); | |
575 | REENABLE_WARNING; | |
576 | ||
577 | mid = t == JOB_START ? "MESSAGE_ID=" SD_MESSAGE_UNIT_STARTING_STR : | |
578 | t == JOB_STOP ? "MESSAGE_ID=" SD_MESSAGE_UNIT_STOPPING_STR : | |
579 | "MESSAGE_ID=" SD_MESSAGE_UNIT_RELOADING_STR; | |
580 | ||
581 | /* Note that we deliberately use LOG_MESSAGE() instead of | |
582 | * LOG_UNIT_MESSAGE() here, since this is supposed to mimic | |
583 | * closely what is written to screen using the status output, | |
584 | * which is supposed the highest level, friendliest output | |
585 | * possible, which means we should avoid the low-level unit | |
586 | * name. */ | |
587 | log_struct(LOG_INFO, | |
588 | LOG_MESSAGE("%s", buf), | |
b344b363 LP |
589 | "JOB_ID=%" PRIu32, job_id, |
590 | "JOB_TYPE=%s", job_type_to_string(t), | |
33a3fdd9 LP |
591 | LOG_UNIT_ID(u), |
592 | LOG_UNIT_INVOCATION_ID(u), | |
593 | mid); | |
594 | } | |
595 | ||
b344b363 | 596 | static void job_emit_begin_status_message(Unit *u, uint32_t job_id, JobType t) { |
33a3fdd9 LP |
597 | assert(u); |
598 | assert(t >= 0); | |
599 | assert(t < _JOB_TYPE_MAX); | |
600 | ||
b344b363 | 601 | job_log_begin_status_message(u, job_id, t); |
33a3fdd9 LP |
602 | job_print_begin_status_message(u, t); |
603 | } | |
604 | ||
d1a34ae9 | 605 | static int job_perform_on_unit(Job **j) { |
df446f96 LP |
606 | uint32_t id; |
607 | Manager *m; | |
608 | JobType t; | |
609 | Unit *u; | |
d1a34ae9 MS |
610 | int r; |
611 | ||
df446f96 LP |
612 | /* While we execute this operation the job might go away (for |
613 | * example: because it finishes immediately or is replaced by | |
614 | * a new, conflicting job.) To make sure we don't access a | |
615 | * freed job later on we store the id here, so that we can | |
616 | * verify the job is still valid. */ | |
617 | ||
618 | assert(j); | |
619 | assert(*j); | |
620 | ||
621 | m = (*j)->manager; | |
622 | u = (*j)->unit; | |
623 | t = (*j)->type; | |
624 | id = (*j)->id; | |
625 | ||
d1a34ae9 MS |
626 | switch (t) { |
627 | case JOB_START: | |
628 | r = unit_start(u); | |
629 | break; | |
630 | ||
631 | case JOB_RESTART: | |
632 | t = JOB_STOP; | |
4831981d | 633 | _fallthrough_; |
d1a34ae9 MS |
634 | case JOB_STOP: |
635 | r = unit_stop(u); | |
636 | break; | |
637 | ||
638 | case JOB_RELOAD: | |
639 | r = unit_reload(u); | |
640 | break; | |
641 | ||
642 | default: | |
643 | assert_not_reached("Invalid job type"); | |
644 | } | |
645 | ||
0e2b4a82 LP |
646 | /* Log if the job still exists and the start/stop/reload function actually did something. Note that this means |
647 | * for units for which there's no 'activating' phase (i.e. because we transition directly from 'inactive' to | |
648 | * 'active') we'll possibly skip the "Starting..." message. */ | |
d1a34ae9 MS |
649 | *j = manager_get_job(m, id); |
650 | if (*j && r > 0) | |
b344b363 | 651 | job_emit_begin_status_message(u, id, t); |
d1a34ae9 MS |
652 | |
653 | return r; | |
654 | } | |
655 | ||
5cb5a6ff LP |
656 | int job_run_and_invalidate(Job *j) { |
657 | int r; | |
ac1135be | 658 | |
5cb5a6ff | 659 | assert(j); |
ac1135be | 660 | assert(j->installed); |
e0209d83 | 661 | assert(j->type < _JOB_TYPE_MAX_IN_TRANSACTION); |
66aa6f7f | 662 | assert(j->in_run_queue); |
5cb5a6ff | 663 | |
71fda00f | 664 | LIST_REMOVE(run_queue, j->manager->run_queue, j); |
66aa6f7f | 665 | j->in_run_queue = false; |
5cb5a6ff LP |
666 | |
667 | if (j->state != JOB_WAITING) | |
668 | return 0; | |
669 | ||
034c6ed7 LP |
670 | if (!job_is_runnable(j)) |
671 | return -EAGAIN; | |
672 | ||
a2df3ea4 | 673 | job_start_timer(j, true); |
9c3349e2 | 674 | job_set_state(j, JOB_RUNNING); |
c1e1601e | 675 | job_add_to_dbus_queue(j); |
83c60c9f | 676 | |
5cb5a6ff LP |
677 | switch (j->type) { |
678 | ||
5cb5a6ff | 679 | case JOB_VERIFY_ACTIVE: { |
ea2c0e45 LP |
680 | UnitActiveState t; |
681 | ||
682 | t = unit_active_state(j->unit); | |
87f0e418 | 683 | if (UNIT_IS_ACTIVE_OR_RELOADING(t)) |
5cb5a6ff | 684 | r = -EALREADY; |
87f0e418 | 685 | else if (t == UNIT_ACTIVATING) |
5cb5a6ff LP |
686 | r = -EAGAIN; |
687 | else | |
6a371e23 | 688 | r = -EBADR; |
5cb5a6ff LP |
689 | break; |
690 | } | |
691 | ||
d1a34ae9 | 692 | case JOB_START: |
5cb5a6ff | 693 | case JOB_STOP: |
dd17d388 | 694 | case JOB_RESTART: |
d1a34ae9 | 695 | r = job_perform_on_unit(&j); |
57339f47 | 696 | |
ea2c0e45 | 697 | /* If the unit type does not support starting/stopping, then simply wait. */ |
57339f47 LP |
698 | if (r == -EBADR) |
699 | r = 0; | |
5cb5a6ff LP |
700 | break; |
701 | ||
702 | case JOB_RELOAD: | |
d1a34ae9 | 703 | r = job_perform_on_unit(&j); |
5cb5a6ff LP |
704 | break; |
705 | ||
e0209d83 MS |
706 | case JOB_NOP: |
707 | r = -EALREADY; | |
708 | break; | |
709 | ||
5cb5a6ff | 710 | default: |
44d8db9e | 711 | assert_not_reached("Unknown job type"); |
5cb5a6ff LP |
712 | } |
713 | ||
e0209d83 | 714 | if (j) { |
8ebd9175 LP |
715 | if (r == -EAGAIN) |
716 | job_set_state(j, JOB_WAITING); /* Hmm, not ready after all, let's return to JOB_WAITING state */ | |
6e64994d | 717 | else if (r == -EALREADY) /* already being executed */ |
833f92ad | 718 | r = job_finish_and_invalidate(j, JOB_DONE, true, true); |
6e64994d LP |
719 | else if (r == -ECOMM) /* condition failed, but all is good */ |
720 | r = job_finish_and_invalidate(j, JOB_DONE, true, false); | |
6a371e23 | 721 | else if (r == -EBADR) |
833f92ad | 722 | r = job_finish_and_invalidate(j, JOB_SKIPPED, true, false); |
6a371e23 | 723 | else if (r == -ENOEXEC) |
833f92ad | 724 | r = job_finish_and_invalidate(j, JOB_INVALID, true, false); |
59fccdc5 | 725 | else if (r == -EPROTO) |
833f92ad | 726 | r = job_finish_and_invalidate(j, JOB_ASSERT, true, false); |
15411c0c | 727 | else if (r == -EOPNOTSUPP) |
833f92ad | 728 | r = job_finish_and_invalidate(j, JOB_UNSUPPORTED, true, false); |
631b676b LP |
729 | else if (r == -ENOLINK) |
730 | r = job_finish_and_invalidate(j, JOB_DEPENDENCY, true, false); | |
d4fd1cf2 LP |
731 | else if (r == -ESTALE) |
732 | r = job_finish_and_invalidate(j, JOB_ONCE, true, false); | |
9c3349e2 | 733 | else if (r < 0) |
833f92ad | 734 | r = job_finish_and_invalidate(j, JOB_FAILED, true, false); |
2cf19a7a | 735 | } |
5cb5a6ff LP |
736 | |
737 | return r; | |
738 | } | |
739 | ||
33a3fdd9 | 740 | _pure_ static const char *job_get_done_status_message_format(Unit *u, JobType t, JobResult result) { |
df446f96 | 741 | |
aa49ab5f MS |
742 | static const char *const generic_finished_start_job[_JOB_RESULT_MAX] = { |
743 | [JOB_DONE] = "Started %s.", | |
744 | [JOB_TIMEOUT] = "Timed out starting %s.", | |
745 | [JOB_FAILED] = "Failed to start %s.", | |
746 | [JOB_DEPENDENCY] = "Dependency failed for %s.", | |
747 | [JOB_ASSERT] = "Assertion failed for %s.", | |
748 | [JOB_UNSUPPORTED] = "Starting of %s not supported.", | |
4332edf6 | 749 | [JOB_COLLECTED] = "Unnecessary job for %s was removed.", |
d4fd1cf2 | 750 | [JOB_ONCE] = "Unit %s has been started before and cannot be started again." |
aa49ab5f MS |
751 | }; |
752 | static const char *const generic_finished_stop_job[_JOB_RESULT_MAX] = { | |
753 | [JOB_DONE] = "Stopped %s.", | |
754 | [JOB_FAILED] = "Stopped (with error) %s.", | |
b59f0ecd | 755 | [JOB_TIMEOUT] = "Timed out stopping %s.", |
aa49ab5f MS |
756 | }; |
757 | static const char *const generic_finished_reload_job[_JOB_RESULT_MAX] = { | |
758 | [JOB_DONE] = "Reloaded %s.", | |
759 | [JOB_FAILED] = "Reload failed for %s.", | |
760 | [JOB_TIMEOUT] = "Timed out reloading %s.", | |
761 | }; | |
762 | /* When verify-active detects the unit is inactive, report it. | |
763 | * Most likely a DEPEND warning from a requisiting unit will | |
764 | * occur next and it's nice to see what was requisited. */ | |
765 | static const char *const generic_finished_verify_active_job[_JOB_RESULT_MAX] = { | |
766 | [JOB_SKIPPED] = "%s is not active.", | |
767 | }; | |
877d54e9 | 768 | |
df446f96 LP |
769 | const UnitStatusMessageFormats *format_table; |
770 | const char *format; | |
771 | ||
877d54e9 LP |
772 | assert(u); |
773 | assert(t >= 0); | |
774 | assert(t < _JOB_TYPE_MAX); | |
c6918296 | 775 | |
df446f96 | 776 | if (IN_SET(t, JOB_START, JOB_STOP, JOB_RESTART)) { |
aa49ab5f MS |
777 | format_table = &UNIT_VTABLE(u)->status_message_formats; |
778 | if (format_table) { | |
779 | format = t == JOB_START ? format_table->finished_start_job[result] : | |
780 | format_table->finished_stop_job[result]; | |
781 | if (format) | |
782 | return format; | |
783 | } | |
784 | } | |
877d54e9 | 785 | |
aa49ab5f | 786 | /* Return generic strings */ |
877d54e9 | 787 | if (t == JOB_START) |
aa49ab5f | 788 | return generic_finished_start_job[result]; |
4c701096 | 789 | else if (IN_SET(t, JOB_STOP, JOB_RESTART)) |
aa49ab5f MS |
790 | return generic_finished_stop_job[result]; |
791 | else if (t == JOB_RELOAD) | |
792 | return generic_finished_reload_job[result]; | |
793 | else if (t == JOB_VERIFY_ACTIVE) | |
794 | return generic_finished_verify_active_job[result]; | |
877d54e9 LP |
795 | |
796 | return NULL; | |
797 | } | |
798 | ||
047d7219 ZJS |
799 | static const struct { |
800 | const char *color, *word; | |
33a3fdd9 | 801 | } job_print_done_status_messages[_JOB_RESULT_MAX] = { |
96164a39 | 802 | [JOB_DONE] = { ANSI_OK_COLOR, " OK " }, |
047d7219 ZJS |
803 | [JOB_TIMEOUT] = { ANSI_HIGHLIGHT_RED, " TIME " }, |
804 | [JOB_FAILED] = { ANSI_HIGHLIGHT_RED, "FAILED" }, | |
805 | [JOB_DEPENDENCY] = { ANSI_HIGHLIGHT_YELLOW, "DEPEND" }, | |
806 | [JOB_SKIPPED] = { ANSI_HIGHLIGHT, " INFO " }, | |
807 | [JOB_ASSERT] = { ANSI_HIGHLIGHT_YELLOW, "ASSERT" }, | |
808 | [JOB_UNSUPPORTED] = { ANSI_HIGHLIGHT_YELLOW, "UNSUPP" }, | |
809 | /* JOB_COLLECTED */ | |
d4fd1cf2 | 810 | [JOB_ONCE] = { ANSI_HIGHLIGHT_RED, " ONCE " }, |
047d7219 | 811 | }; |
e02cd6f7 | 812 | |
33a3fdd9 | 813 | static void job_print_done_status_message(Unit *u, JobType t, JobResult result) { |
df446f96 | 814 | const char *format; |
dc9b5816 | 815 | const char *status; |
df446f96 | 816 | |
877d54e9 LP |
817 | assert(u); |
818 | assert(t >= 0); | |
819 | assert(t < _JOB_TYPE_MAX); | |
820 | ||
df446f96 LP |
821 | /* Reload status messages have traditionally not been printed to console. */ |
822 | if (t == JOB_RELOAD) | |
823 | return; | |
824 | ||
9a80f2f4 LP |
825 | /* No message if the job did not actually do anything due to failed condition. */ |
826 | if (t == JOB_START && result == JOB_DONE && !u->condition_result) | |
827 | return; | |
828 | ||
33a3fdd9 | 829 | if (!job_print_done_status_messages[result].word) |
047d7219 ZJS |
830 | return; |
831 | ||
33a3fdd9 | 832 | format = job_get_done_status_message_format(u, t, result); |
aa49ab5f MS |
833 | if (!format) |
834 | return; | |
e02cd6f7 | 835 | |
dc9b5816 | 836 | if (log_get_show_color()) |
33a3fdd9 LP |
837 | status = strjoina(job_print_done_status_messages[result].color, |
838 | job_print_done_status_messages[result].word, | |
047d7219 | 839 | ANSI_NORMAL); |
dc9b5816 | 840 | else |
33a3fdd9 | 841 | status = job_print_done_status_messages[result].word; |
dc9b5816 | 842 | |
aa49ab5f MS |
843 | if (result != JOB_DONE) |
844 | manager_flip_auto_status(u->manager, true); | |
e02cd6f7 | 845 | |
aa49ab5f | 846 | DISABLE_WARNING_FORMAT_NONLITERAL; |
dc9b5816 | 847 | unit_status_printf(u, status, format); |
aa49ab5f | 848 | REENABLE_WARNING; |
7cf82e0b | 849 | |
aa49ab5f | 850 | if (t == JOB_START && result == JOB_FAILED) { |
df446f96 | 851 | _cleanup_free_ char *quoted; |
7cf82e0b | 852 | |
804ee07c | 853 | quoted = shell_maybe_quote(u->id, ESCAPE_BACKSLASH); |
df446f96 | 854 | manager_status_printf(u->manager, STATUS_TYPE_NORMAL, NULL, "See 'systemctl status %s' for details.", strna(quoted)); |
e02cd6f7 LP |
855 | } |
856 | } | |
857 | ||
33a3fdd9 | 858 | static void job_log_done_status_message(Unit *u, uint32_t job_id, JobType t, JobResult result) { |
2b044526 | 859 | const char *format, *mid; |
877d54e9 | 860 | char buf[LINE_MAX]; |
64f575d2 MS |
861 | static const int job_result_log_level[_JOB_RESULT_MAX] = { |
862 | [JOB_DONE] = LOG_INFO, | |
863 | [JOB_CANCELED] = LOG_INFO, | |
864 | [JOB_TIMEOUT] = LOG_ERR, | |
865 | [JOB_FAILED] = LOG_ERR, | |
866 | [JOB_DEPENDENCY] = LOG_WARNING, | |
867 | [JOB_SKIPPED] = LOG_NOTICE, | |
868 | [JOB_INVALID] = LOG_INFO, | |
869 | [JOB_ASSERT] = LOG_WARNING, | |
870 | [JOB_UNSUPPORTED] = LOG_WARNING, | |
c5a97ed1 | 871 | [JOB_COLLECTED] = LOG_INFO, |
d4fd1cf2 | 872 | [JOB_ONCE] = LOG_ERR, |
64f575d2 | 873 | }; |
877d54e9 LP |
874 | |
875 | assert(u); | |
876 | assert(t >= 0); | |
877 | assert(t < _JOB_TYPE_MAX); | |
878 | ||
047d7219 ZJS |
879 | /* Skip printing if output goes to the console, and job_print_status_message() |
880 | will actually print something to the console. */ | |
33a3fdd9 | 881 | if (log_on_console() && job_print_done_status_messages[result].word) |
81270860 LP |
882 | return; |
883 | ||
9a80f2f4 LP |
884 | /* Show condition check message if the job did not actually do anything due to failed condition. */ |
885 | if (t == JOB_START && result == JOB_DONE && !u->condition_result) { | |
886 | log_struct(LOG_INFO, | |
887 | "MESSAGE=Condition check resulted in %s being skipped.", unit_description(u), | |
888 | "JOB_ID=%" PRIu32, job_id, | |
889 | "JOB_TYPE=%s", job_type_to_string(t), | |
890 | "JOB_RESULT=%s", job_result_to_string(result), | |
891 | LOG_UNIT_ID(u), | |
892 | LOG_UNIT_INVOCATION_ID(u), | |
893 | "MESSAGE_ID=" SD_MESSAGE_UNIT_STARTED_STR); | |
894 | ||
895 | return; | |
896 | } | |
897 | ||
33a3fdd9 | 898 | format = job_get_done_status_message_format(u, t, result); |
877d54e9 LP |
899 | if (!format) |
900 | return; | |
901 | ||
574432f8 ILG |
902 | /* The description might be longer than the buffer, but that's OK, |
903 | * we'll just truncate it here. Note that we use snprintf() rather than | |
904 | * xsprintf() on purpose here: we are fine with truncation and don't | |
905 | * consider that an error. */ | |
bcfce235 | 906 | DISABLE_WARNING_FORMAT_NONLITERAL; |
574432f8 | 907 | (void) snprintf(buf, sizeof(buf), format, unit_description(u)); |
bcfce235 | 908 | REENABLE_WARNING; |
877d54e9 | 909 | |
df446f96 LP |
910 | switch (t) { |
911 | ||
912 | case JOB_START: | |
2b044526 ZJS |
913 | if (result == JOB_DONE) |
914 | mid = "MESSAGE_ID=" SD_MESSAGE_UNIT_STARTED_STR; | |
915 | else | |
916 | mid = "MESSAGE_ID=" SD_MESSAGE_UNIT_FAILED_STR; | |
df446f96 LP |
917 | break; |
918 | ||
919 | case JOB_RELOAD: | |
2b044526 | 920 | mid = "MESSAGE_ID=" SD_MESSAGE_UNIT_RELOADED_STR; |
df446f96 LP |
921 | break; |
922 | ||
923 | case JOB_STOP: | |
924 | case JOB_RESTART: | |
2b044526 | 925 | mid = "MESSAGE_ID=" SD_MESSAGE_UNIT_STOPPED_STR; |
df446f96 LP |
926 | break; |
927 | ||
928 | default: | |
64f575d2 | 929 | log_struct(job_result_log_level[result], |
4f29c6fe | 930 | LOG_MESSAGE("%s", buf), |
1cd81629 | 931 | "JOB_ID=%" PRIu32, job_id, |
646cc98d LP |
932 | "JOB_TYPE=%s", job_type_to_string(t), |
933 | "JOB_RESULT=%s", job_result_to_string(result), | |
ba360bb0 | 934 | LOG_UNIT_ID(u), |
a1230ff9 | 935 | LOG_UNIT_INVOCATION_ID(u)); |
b81bbe53 MS |
936 | return; |
937 | } | |
938 | ||
64f575d2 | 939 | log_struct(job_result_log_level[result], |
b81bbe53 | 940 | LOG_MESSAGE("%s", buf), |
1cd81629 | 941 | "JOB_ID=%" PRIu32, job_id, |
646cc98d LP |
942 | "JOB_TYPE=%s", job_type_to_string(t), |
943 | "JOB_RESULT=%s", job_result_to_string(result), | |
ba360bb0 | 944 | LOG_UNIT_ID(u), |
f1c50bec | 945 | LOG_UNIT_INVOCATION_ID(u), |
a1230ff9 | 946 | mid); |
877d54e9 | 947 | } |
877d54e9 | 948 | |
33a3fdd9 | 949 | static void job_emit_done_status_message(Unit *u, uint32_t job_id, JobType t, JobResult result) { |
646cc98d | 950 | assert(u); |
30961fa3 | 951 | |
33a3fdd9 LP |
952 | job_log_done_status_message(u, job_id, t, result); |
953 | job_print_done_status_message(u, t, result); | |
30961fa3 MS |
954 | } |
955 | ||
be7d9ff7 LP |
956 | static void job_fail_dependencies(Unit *u, UnitDependency d) { |
957 | Unit *other; | |
958 | Iterator i; | |
eef85c4a | 959 | void *v; |
be7d9ff7 LP |
960 | |
961 | assert(u); | |
962 | ||
eef85c4a | 963 | HASHMAP_FOREACH_KEY(v, other, u->dependencies[d], i) { |
be7d9ff7 LP |
964 | Job *j = other->job; |
965 | ||
966 | if (!j) | |
967 | continue; | |
968 | if (!IN_SET(j->type, JOB_START, JOB_VERIFY_ACTIVE)) | |
969 | continue; | |
970 | ||
833f92ad | 971 | job_finish_and_invalidate(j, JOB_DEPENDENCY, true, false); |
be7d9ff7 LP |
972 | } |
973 | } | |
974 | ||
a7a7163d DT |
975 | static int job_save_pending_finished_job(Job *j) { |
976 | int r; | |
977 | ||
978 | assert(j); | |
979 | ||
980 | r = set_ensure_allocated(&j->manager->pending_finished_jobs, NULL); | |
981 | if (r < 0) | |
982 | return r; | |
983 | ||
984 | job_unlink(j); | |
985 | return set_put(j->manager->pending_finished_jobs, j); | |
986 | } | |
987 | ||
833f92ad | 988 | int job_finish_and_invalidate(Job *j, JobResult result, bool recursive, bool already) { |
87f0e418 LP |
989 | Unit *u; |
990 | Unit *other; | |
b866264a | 991 | JobType t; |
034c6ed7 | 992 | Iterator i; |
eef85c4a | 993 | void *v; |
5cb5a6ff LP |
994 | |
995 | assert(j); | |
ac1135be | 996 | assert(j->installed); |
e0209d83 | 997 | assert(j->type < _JOB_TYPE_MAX_IN_TRANSACTION); |
5cb5a6ff | 998 | |
c6918296 MS |
999 | u = j->unit; |
1000 | t = j->type; | |
1001 | ||
1002 | j->result = result; | |
1003 | ||
1cd81629 | 1004 | log_unit_debug(u, "Job %" PRIu32 " %s/%s finished, result=%s", j->id, u->id, job_type_to_string(t), job_result_to_string(result)); |
c6918296 | 1005 | |
833f92ad MS |
1006 | /* If this job did nothing to respective unit we don't log the status message */ |
1007 | if (!already) | |
33a3fdd9 | 1008 | job_emit_done_status_message(u, j->id, t, result); |
c6918296 | 1009 | |
034c6ed7 | 1010 | /* Patch restart jobs so that they become normal start jobs */ |
c6918296 | 1011 | if (result == JOB_DONE && t == JOB_RESTART) { |
f50e0a01 | 1012 | |
bbd1a837 | 1013 | job_change_type(j, JOB_START); |
9c3349e2 | 1014 | job_set_state(j, JOB_WAITING); |
cc42e081 | 1015 | |
fec7615c | 1016 | job_add_to_dbus_queue(j); |
cc42e081 | 1017 | job_add_to_run_queue(j); |
c5a97ed1 | 1018 | job_add_to_gc_queue(j); |
57981b98 | 1019 | |
57981b98 | 1020 | goto finish; |
5cb5a6ff LP |
1021 | } |
1022 | ||
3742095b | 1023 | if (IN_SET(result, JOB_FAILED, JOB_INVALID)) |
313cefa1 | 1024 | j->manager->n_failed_jobs++; |
76bf48b7 | 1025 | |
97e7d748 | 1026 | job_uninstall(j); |
509ad789 ZJS |
1027 | /* Keep jobs started before the reload to send singal later, free all others */ |
1028 | if (!MANAGER_IS_RELOADING(j->manager) || | |
1029 | !j->reloaded || | |
1030 | job_save_pending_finished_job(j) < 0) | |
a7a7163d | 1031 | job_free(j); |
5cb5a6ff LP |
1032 | |
1033 | /* Fail depending jobs on failure */ | |
5273510e | 1034 | if (result != JOB_DONE && recursive) { |
be7d9ff7 LP |
1035 | if (IN_SET(t, JOB_START, JOB_VERIFY_ACTIVE)) { |
1036 | job_fail_dependencies(u, UNIT_REQUIRED_BY); | |
1037 | job_fail_dependencies(u, UNIT_REQUISITE_OF); | |
1038 | job_fail_dependencies(u, UNIT_BOUND_BY); | |
be7d9ff7 LP |
1039 | } else if (t == JOB_STOP) |
1040 | job_fail_dependencies(u, UNIT_CONFLICTED_BY); | |
5cb5a6ff LP |
1041 | } |
1042 | ||
c0daa706 | 1043 | /* Trigger OnFailure dependencies that are not generated by |
66870f90 | 1044 | * the unit itself. We don't treat JOB_CANCELED as failure in |
c0daa706 LP |
1045 | * this context. And JOB_FAILURE is already handled by the |
1046 | * unit itself. */ | |
646cc98d | 1047 | if (IN_SET(result, JOB_TIMEOUT, JOB_DEPENDENCY)) { |
f2341e0a LP |
1048 | log_struct(LOG_NOTICE, |
1049 | "JOB_TYPE=%s", job_type_to_string(t), | |
1050 | "JOB_RESULT=%s", job_result_to_string(result), | |
1051 | LOG_UNIT_ID(u), | |
1052 | LOG_UNIT_MESSAGE(u, "Job %s/%s failed with result '%s'.", | |
e2cc6eca LP |
1053 | u->id, |
1054 | job_type_to_string(t), | |
a1230ff9 | 1055 | job_result_to_string(result))); |
222ae6a8 | 1056 | |
3ecaa09b | 1057 | unit_start_on_failure(u); |
222ae6a8 | 1058 | } |
c0daa706 | 1059 | |
3ecaa09b LP |
1060 | unit_trigger_notify(u); |
1061 | ||
57981b98 | 1062 | finish: |
5cb5a6ff | 1063 | /* Try to start the next jobs that can be started */ |
eef85c4a | 1064 | HASHMAP_FOREACH_KEY(v, other, u->dependencies[UNIT_AFTER], i) |
c5a97ed1 | 1065 | if (other->job) { |
ac155bb8 | 1066 | job_add_to_run_queue(other->job); |
c5a97ed1 LP |
1067 | job_add_to_gc_queue(other->job); |
1068 | } | |
eef85c4a | 1069 | HASHMAP_FOREACH_KEY(v, other, u->dependencies[UNIT_BEFORE], i) |
c5a97ed1 | 1070 | if (other->job) { |
ac155bb8 | 1071 | job_add_to_run_queue(other->job); |
c5a97ed1 LP |
1072 | job_add_to_gc_queue(other->job); |
1073 | } | |
5cb5a6ff | 1074 | |
ac155bb8 | 1075 | manager_check_finished(u->manager); |
b0c918b9 | 1076 | |
5273510e | 1077 | return 0; |
5cb5a6ff | 1078 | } |
034c6ed7 | 1079 | |
718db961 LP |
1080 | static int job_dispatch_timer(sd_event_source *s, uint64_t monotonic, void *userdata) { |
1081 | Job *j = userdata; | |
f189ab18 | 1082 | Unit *u; |
faf919f1 | 1083 | |
718db961 LP |
1084 | assert(j); |
1085 | assert(s == j->timer_event_source); | |
faf919f1 | 1086 | |
f2341e0a | 1087 | log_unit_warning(j->unit, "Job %s/%s timed out.", j->unit->id, job_type_to_string(j->type)); |
faf919f1 | 1088 | |
f189ab18 | 1089 | u = j->unit; |
833f92ad | 1090 | job_finish_and_invalidate(j, JOB_TIMEOUT, true, false); |
f189ab18 | 1091 | |
c7adcb1a ZJS |
1092 | emergency_action(u->manager, u->job_timeout_action, |
1093 | EMERGENCY_ACTION_IS_WATCHDOG|EMERGENCY_ACTION_WARN, | |
1710d4be | 1094 | u->job_timeout_reboot_arg, "job timed out"); |
f189ab18 | 1095 | |
718db961 LP |
1096 | return 0; |
1097 | } | |
faf919f1 | 1098 | |
a2df3ea4 | 1099 | int job_start_timer(Job *j, bool job_running) { |
718db961 | 1100 | int r; |
171f12ce | 1101 | usec_t timeout_time, old_timeout_time; |
faf919f1 | 1102 | |
a2df3ea4 | 1103 | if (job_running) { |
171f12ce MK |
1104 | j->begin_running_usec = now(CLOCK_MONOTONIC); |
1105 | ||
a2df3ea4 MK |
1106 | if (j->unit->job_running_timeout == USEC_INFINITY) |
1107 | return 0; | |
faf919f1 | 1108 | |
171f12ce | 1109 | timeout_time = usec_add(j->begin_running_usec, j->unit->job_running_timeout); |
faf919f1 | 1110 | |
a2df3ea4 MK |
1111 | if (j->timer_event_source) { |
1112 | /* Update only if JobRunningTimeoutSec= results in earlier timeout */ | |
1113 | r = sd_event_source_get_time(j->timer_event_source, &old_timeout_time); | |
1114 | if (r < 0) | |
1115 | return r; | |
1116 | ||
1117 | if (old_timeout_time <= timeout_time) | |
1118 | return 0; | |
1119 | ||
1120 | return sd_event_source_set_time(j->timer_event_source, timeout_time); | |
1121 | } | |
1122 | } else { | |
1123 | if (j->timer_event_source) | |
1124 | return 0; | |
1125 | ||
1126 | j->begin_usec = now(CLOCK_MONOTONIC); | |
1127 | ||
1128 | if (j->unit->job_timeout == USEC_INFINITY) | |
1129 | return 0; | |
1130 | ||
1131 | timeout_time = usec_add(j->begin_usec, j->unit->job_timeout); | |
1132 | } | |
8bb310c3 | 1133 | |
6a0f1f6d LP |
1134 | r = sd_event_add_time( |
1135 | j->manager->event, | |
1136 | &j->timer_event_source, | |
1137 | CLOCK_MONOTONIC, | |
a2df3ea4 | 1138 | timeout_time, 0, |
6a0f1f6d | 1139 | job_dispatch_timer, j); |
718db961 LP |
1140 | if (r < 0) |
1141 | return r; | |
faf919f1 | 1142 | |
7dfbe2e3 TG |
1143 | (void) sd_event_source_set_description(j->timer_event_source, "job-start"); |
1144 | ||
718db961 | 1145 | return 0; |
faf919f1 LP |
1146 | } |
1147 | ||
c1e1601e | 1148 | void job_add_to_run_queue(Job *j) { |
f8c34706 LP |
1149 | int r; |
1150 | ||
034c6ed7 | 1151 | assert(j); |
ac1135be | 1152 | assert(j->installed); |
034c6ed7 LP |
1153 | |
1154 | if (j->in_run_queue) | |
1155 | return; | |
1156 | ||
f8c34706 LP |
1157 | if (!j->manager->run_queue) { |
1158 | r = sd_event_source_set_enabled(j->manager->run_queue_event_source, SD_EVENT_ONESHOT); | |
1159 | if (r < 0) | |
1160 | log_warning_errno(r, "Failed to enable job run queue event source, ignoring: %m"); | |
1161 | } | |
752b5905 | 1162 | |
71fda00f | 1163 | LIST_PREPEND(run_queue, j->manager->run_queue, j); |
034c6ed7 LP |
1164 | j->in_run_queue = true; |
1165 | } | |
94f04347 | 1166 | |
c1e1601e LP |
1167 | void job_add_to_dbus_queue(Job *j) { |
1168 | assert(j); | |
1169 | assert(j->installed); | |
1170 | ||
1171 | if (j->in_dbus_queue) | |
1172 | return; | |
1173 | ||
a567261a LP |
1174 | /* We don't check if anybody is subscribed here, since this |
1175 | * job might just have been created and not yet assigned to a | |
1176 | * connection/client. */ | |
94b6dfa2 | 1177 | |
71fda00f | 1178 | LIST_PREPEND(dbus_queue, j->manager->dbus_job_queue, j); |
c1e1601e LP |
1179 | j->in_dbus_queue = true; |
1180 | } | |
1181 | ||
ea430986 LP |
1182 | char *job_dbus_path(Job *j) { |
1183 | char *p; | |
1184 | ||
1185 | assert(j); | |
1186 | ||
ccd06097 | 1187 | if (asprintf(&p, "/org/freedesktop/systemd1/job/%"PRIu32, j->id) < 0) |
ea430986 LP |
1188 | return NULL; |
1189 | ||
1190 | return p; | |
1191 | } | |
1192 | ||
05a98afd LP |
1193 | int job_serialize(Job *j, FILE *f) { |
1194 | assert(j); | |
1195 | assert(f); | |
1196 | ||
d68c645b LP |
1197 | (void) serialize_item_format(f, "job-id", "%u", j->id); |
1198 | (void) serialize_item(f, "job-type", job_type_to_string(j->type)); | |
1199 | (void) serialize_item(f, "job-state", job_state_to_string(j->state)); | |
1200 | (void) serialize_bool(f, "job-irreversible", j->irreversible); | |
1201 | (void) serialize_bool(f, "job-sent-dbus-new-signal", j->sent_dbus_new_signal); | |
1202 | (void) serialize_bool(f, "job-ignore-order", j->ignore_order); | |
718db961 LP |
1203 | |
1204 | if (j->begin_usec > 0) | |
d68c645b | 1205 | (void) serialize_usec(f, "job-begin", j->begin_usec); |
171f12ce | 1206 | if (j->begin_running_usec > 0) |
d68c645b | 1207 | (void) serialize_usec(f, "job-begin-running", j->begin_running_usec); |
718db961 | 1208 | |
1a465207 | 1209 | bus_track_serialize(j->bus_track, f, "subscribed"); |
39a18c60 MS |
1210 | |
1211 | /* End marker */ | |
1212 | fputc('\n', f); | |
1213 | return 0; | |
1214 | } | |
1215 | ||
05a98afd | 1216 | int job_deserialize(Job *j, FILE *f) { |
8948b341 LP |
1217 | int r; |
1218 | ||
718db961 | 1219 | assert(j); |
05a98afd | 1220 | assert(f); |
718db961 | 1221 | |
39a18c60 | 1222 | for (;;) { |
8948b341 LP |
1223 | _cleanup_free_ char *line = NULL; |
1224 | char *l, *v; | |
39a18c60 MS |
1225 | size_t k; |
1226 | ||
8948b341 LP |
1227 | r = read_line(f, LONG_LINE_MAX, &line); |
1228 | if (r < 0) | |
1229 | return log_error_errno(r, "Failed to read serialization line: %m"); | |
1230 | if (r == 0) | |
1231 | return 0; | |
39a18c60 | 1232 | |
39a18c60 MS |
1233 | l = strstrip(line); |
1234 | ||
1235 | /* End marker */ | |
8948b341 | 1236 | if (isempty(l)) |
39a18c60 MS |
1237 | return 0; |
1238 | ||
1239 | k = strcspn(l, "="); | |
1240 | ||
1241 | if (l[k] == '=') { | |
1242 | l[k] = 0; | |
1243 | v = l+k+1; | |
1244 | } else | |
1245 | v = l+k; | |
1246 | ||
1247 | if (streq(l, "job-id")) { | |
718db961 | 1248 | |
39a18c60 | 1249 | if (safe_atou32(v, &j->id) < 0) |
15ec1021 | 1250 | log_debug("Failed to parse job id value: %s", v); |
718db961 | 1251 | |
39a18c60 | 1252 | } else if (streq(l, "job-type")) { |
718db961 LP |
1253 | JobType t; |
1254 | ||
1255 | t = job_type_from_string(v); | |
39a18c60 | 1256 | if (t < 0) |
15ec1021 | 1257 | log_debug("Failed to parse job type: %s", v); |
e0209d83 | 1258 | else if (t >= _JOB_TYPE_MAX_IN_TRANSACTION) |
15ec1021 | 1259 | log_debug("Cannot deserialize job of type: %s", v); |
39a18c60 MS |
1260 | else |
1261 | j->type = t; | |
718db961 | 1262 | |
39a18c60 | 1263 | } else if (streq(l, "job-state")) { |
718db961 LP |
1264 | JobState s; |
1265 | ||
1266 | s = job_state_from_string(v); | |
39a18c60 | 1267 | if (s < 0) |
15ec1021 | 1268 | log_debug("Failed to parse job state: %s", v); |
39a18c60 | 1269 | else |
9c3349e2 | 1270 | job_set_state(j, s); |
718db961 | 1271 | |
23ade460 | 1272 | } else if (streq(l, "job-irreversible")) { |
718db961 LP |
1273 | int b; |
1274 | ||
1275 | b = parse_boolean(v); | |
23ade460 | 1276 | if (b < 0) |
15ec1021 | 1277 | log_debug("Failed to parse job irreversible flag: %s", v); |
23ade460 MS |
1278 | else |
1279 | j->irreversible = j->irreversible || b; | |
718db961 | 1280 | |
39a18c60 | 1281 | } else if (streq(l, "job-sent-dbus-new-signal")) { |
718db961 LP |
1282 | int b; |
1283 | ||
1284 | b = parse_boolean(v); | |
39a18c60 | 1285 | if (b < 0) |
15ec1021 | 1286 | log_debug("Failed to parse job sent_dbus_new_signal flag: %s", v); |
39a18c60 MS |
1287 | else |
1288 | j->sent_dbus_new_signal = j->sent_dbus_new_signal || b; | |
718db961 | 1289 | |
39a18c60 | 1290 | } else if (streq(l, "job-ignore-order")) { |
718db961 LP |
1291 | int b; |
1292 | ||
1293 | b = parse_boolean(v); | |
39a18c60 | 1294 | if (b < 0) |
15ec1021 | 1295 | log_debug("Failed to parse job ignore_order flag: %s", v); |
39a18c60 MS |
1296 | else |
1297 | j->ignore_order = j->ignore_order || b; | |
718db961 | 1298 | |
d68c645b LP |
1299 | } else if (streq(l, "job-begin")) |
1300 | (void) deserialize_usec(v, &j->begin_usec); | |
718db961 | 1301 | |
d68c645b LP |
1302 | else if (streq(l, "job-begin-running")) |
1303 | (void) deserialize_usec(v, &j->begin_running_usec); | |
718db961 | 1304 | |
d68c645b | 1305 | else if (streq(l, "subscribed")) { |
b39a2770 | 1306 | if (strv_extend(&j->deserialized_clients, v) < 0) |
d68c645b LP |
1307 | return log_oom(); |
1308 | } else | |
1309 | log_debug("Unknown job serialization key: %s", l); | |
39a18c60 MS |
1310 | } |
1311 | } | |
1312 | ||
1313 | int job_coldplug(Job *j) { | |
718db961 | 1314 | int r; |
171f12ce | 1315 | usec_t timeout_time = USEC_INFINITY; |
718db961 LP |
1316 | |
1317 | assert(j); | |
39a18c60 | 1318 | |
8f8f05a9 LP |
1319 | /* After deserialization is complete and the bus connection |
1320 | * set up again, let's start watching our subscribers again */ | |
c5a97ed1 | 1321 | (void) bus_job_coldplug_bus_track(j); |
8f8f05a9 | 1322 | |
1727a595 MM |
1323 | if (j->state == JOB_WAITING) |
1324 | job_add_to_run_queue(j); | |
1325 | ||
c5a97ed1 LP |
1326 | /* Maybe due to new dependencies we don't actually need this job anymore? */ |
1327 | job_add_to_gc_queue(j); | |
1328 | ||
171f12ce MK |
1329 | /* Create timer only when job began or began running and the respective timeout is finite. |
1330 | * Follow logic of job_start_timer() if both timeouts are finite */ | |
1331 | if (j->begin_usec == 0) | |
1332 | return 0; | |
1333 | ||
1334 | if (j->unit->job_timeout != USEC_INFINITY) | |
1335 | timeout_time = usec_add(j->begin_usec, j->unit->job_timeout); | |
1336 | ||
1337 | if (j->begin_running_usec > 0 && j->unit->job_running_timeout != USEC_INFINITY) | |
1338 | timeout_time = MIN(timeout_time, usec_add(j->begin_running_usec, j->unit->job_running_timeout)); | |
1339 | ||
1340 | if (timeout_time == USEC_INFINITY) | |
39a18c60 MS |
1341 | return 0; |
1342 | ||
36c16a7c | 1343 | j->timer_event_source = sd_event_source_unref(j->timer_event_source); |
39a18c60 | 1344 | |
6a0f1f6d LP |
1345 | r = sd_event_add_time( |
1346 | j->manager->event, | |
1347 | &j->timer_event_source, | |
1348 | CLOCK_MONOTONIC, | |
171f12ce | 1349 | timeout_time, 0, |
6a0f1f6d | 1350 | job_dispatch_timer, j); |
718db961 | 1351 | if (r < 0) |
da927ba9 | 1352 | log_debug_errno(r, "Failed to restart timeout for job: %m"); |
718db961 | 1353 | |
7dfbe2e3 TG |
1354 | (void) sd_event_source_set_description(j->timer_event_source, "job-timeout"); |
1355 | ||
718db961 | 1356 | return r; |
39a18c60 MS |
1357 | } |
1358 | ||
c65eb836 LP |
1359 | void job_shutdown_magic(Job *j) { |
1360 | assert(j); | |
1361 | ||
1362 | /* The shutdown target gets some special treatment here: we | |
1363 | * tell the kernel to begin with flushing its disk caches, to | |
1364 | * optimize shutdown time a bit. Ideally we wouldn't hardcode | |
1365 | * this magic into PID 1. However all other processes aren't | |
1366 | * options either since they'd exit much sooner than PID 1 and | |
1367 | * asynchronous sync() would cause their exit to be | |
1368 | * delayed. */ | |
1369 | ||
c2756a68 | 1370 | if (j->type != JOB_START) |
c65eb836 LP |
1371 | return; |
1372 | ||
463d0d15 | 1373 | if (!MANAGER_IS_SYSTEM(j->unit->manager)) |
c2756a68 LP |
1374 | return; |
1375 | ||
1376 | if (!unit_has_name(j->unit, SPECIAL_SHUTDOWN_TARGET)) | |
c65eb836 LP |
1377 | return; |
1378 | ||
5b1869ea OB |
1379 | /* In case messages on console has been disabled on boot */ |
1380 | j->unit->manager->no_console_output = false; | |
1381 | ||
75f86906 | 1382 | if (detect_container() > 0) |
c65eb836 LP |
1383 | return; |
1384 | ||
d00c2631 | 1385 | (void) asynchronous_sync(NULL); |
c65eb836 LP |
1386 | } |
1387 | ||
7a7821c8 LP |
1388 | int job_get_timeout(Job *j, usec_t *timeout) { |
1389 | usec_t x = USEC_INFINITY, y = USEC_INFINITY; | |
68db7a3b | 1390 | Unit *u = j->unit; |
7a7821c8 | 1391 | int r; |
68db7a3b ZJS |
1392 | |
1393 | assert(u); | |
1394 | ||
1395 | if (j->timer_event_source) { | |
1396 | r = sd_event_source_get_time(j->timer_event_source, &x); | |
1397 | if (r < 0) | |
1398 | return r; | |
68db7a3b ZJS |
1399 | } |
1400 | ||
1401 | if (UNIT_VTABLE(u)->get_timeout) { | |
7a7821c8 LP |
1402 | r = UNIT_VTABLE(u)->get_timeout(u, &y); |
1403 | if (r < 0) | |
1404 | return r; | |
68db7a3b ZJS |
1405 | } |
1406 | ||
7a7821c8 | 1407 | if (x == USEC_INFINITY && y == USEC_INFINITY) |
68db7a3b ZJS |
1408 | return 0; |
1409 | ||
1410 | *timeout = MIN(x, y); | |
68db7a3b ZJS |
1411 | return 1; |
1412 | } | |
1413 | ||
2ab3050f | 1414 | bool job_may_gc(Job *j) { |
c5a97ed1 LP |
1415 | Unit *other; |
1416 | Iterator i; | |
eef85c4a | 1417 | void *v; |
c5a97ed1 LP |
1418 | |
1419 | assert(j); | |
1420 | ||
1421 | /* Checks whether this job should be GC'ed away. We only do this for jobs of units that have no effect on their | |
2ab3050f ZJS |
1422 | * own and just track external state. For now the only unit type that qualifies for this are .device units. |
1423 | * Returns true if the job can be collected. */ | |
c5a97ed1 LP |
1424 | |
1425 | if (!UNIT_VTABLE(j->unit)->gc_jobs) | |
2ab3050f | 1426 | return false; |
c5a97ed1 LP |
1427 | |
1428 | if (sd_bus_track_count(j->bus_track) > 0) | |
2ab3050f | 1429 | return false; |
c5a97ed1 LP |
1430 | |
1431 | /* FIXME: So this is a bit ugly: for now we don't properly track references made via private bus connections | |
1432 | * (because it's nasty, as sd_bus_track doesn't apply to it). We simply remember that the job was once | |
1433 | * referenced by one, and reset this whenever we notice that no private bus connections are around. This means | |
1434 | * the GC is a bit too conservative when it comes to jobs created by private bus connections. */ | |
1435 | if (j->ref_by_private_bus) { | |
1436 | if (set_isempty(j->unit->manager->private_buses)) | |
1437 | j->ref_by_private_bus = false; | |
1438 | else | |
2ab3050f | 1439 | return false; |
c5a97ed1 LP |
1440 | } |
1441 | ||
1442 | if (j->type == JOB_NOP) | |
2ab3050f | 1443 | return false; |
c5a97ed1 LP |
1444 | |
1445 | /* If a job is ordered after ours, and is to be started, then it needs to wait for us, regardless if we stop or | |
1446 | * start, hence let's not GC in that case. */ | |
eef85c4a | 1447 | HASHMAP_FOREACH_KEY(v, other, j->unit->dependencies[UNIT_BEFORE], i) { |
c5a97ed1 LP |
1448 | if (!other->job) |
1449 | continue; | |
1450 | ||
1451 | if (other->job->ignore_order) | |
1452 | continue; | |
1453 | ||
1454 | if (IN_SET(other->job->type, JOB_START, JOB_VERIFY_ACTIVE, JOB_RELOAD)) | |
2ab3050f | 1455 | return false; |
c5a97ed1 LP |
1456 | } |
1457 | ||
047d7219 ZJS |
1458 | /* If we are going down, but something else is ordered After= us, then it needs to wait for us */ |
1459 | if (IN_SET(j->type, JOB_STOP, JOB_RESTART)) | |
eef85c4a | 1460 | HASHMAP_FOREACH_KEY(v, other, j->unit->dependencies[UNIT_AFTER], i) { |
c5a97ed1 LP |
1461 | if (!other->job) |
1462 | continue; | |
1463 | ||
1464 | if (other->job->ignore_order) | |
1465 | continue; | |
1466 | ||
2ab3050f | 1467 | return false; |
c5a97ed1 | 1468 | } |
c5a97ed1 LP |
1469 | |
1470 | /* The logic above is kinda the inverse of the job_is_runnable() logic. Specifically, if the job "we" is | |
1471 | * ordered before the job "other": | |
1472 | * | |
1473 | * we start + other start → stay | |
1474 | * we start + other stop → gc | |
1475 | * we stop + other start → stay | |
1476 | * we stop + other stop → gc | |
1477 | * | |
1478 | * "we" are ordered after "other": | |
1479 | * | |
1480 | * we start + other start → gc | |
1481 | * we start + other stop → gc | |
1482 | * we stop + other start → stay | |
1483 | * we stop + other stop → stay | |
c5a97ed1 LP |
1484 | */ |
1485 | ||
2ab3050f | 1486 | return true; |
c5a97ed1 LP |
1487 | } |
1488 | ||
1489 | void job_add_to_gc_queue(Job *j) { | |
1490 | assert(j); | |
1491 | ||
1492 | if (j->in_gc_queue) | |
1493 | return; | |
1494 | ||
2ab3050f | 1495 | if (!job_may_gc(j)) |
c5a97ed1 LP |
1496 | return; |
1497 | ||
1498 | LIST_PREPEND(gc_queue, j->unit->manager->gc_job_queue, j); | |
1499 | j->in_gc_queue = true; | |
1500 | } | |
1501 | ||
93bab288 YW |
1502 | static int job_compare(Job * const *a, Job * const *b) { |
1503 | return CMP((*a)->id, (*b)->id); | |
15ea79f8 LP |
1504 | } |
1505 | ||
1506 | static size_t sort_job_list(Job **list, size_t n) { | |
1507 | Job *previous = NULL; | |
1508 | size_t a, b; | |
1509 | ||
1510 | /* Order by numeric IDs */ | |
93bab288 | 1511 | typesafe_qsort(list, n, job_compare); |
15ea79f8 LP |
1512 | |
1513 | /* Filter out duplicates */ | |
1514 | for (a = 0, b = 0; a < n; a++) { | |
1515 | ||
1516 | if (previous == list[a]) | |
1517 | continue; | |
1518 | ||
1519 | previous = list[b++] = list[a]; | |
1520 | } | |
1521 | ||
1522 | return b; | |
1523 | } | |
1524 | ||
1525 | int job_get_before(Job *j, Job*** ret) { | |
1526 | _cleanup_free_ Job** list = NULL; | |
1527 | size_t n = 0, n_allocated = 0; | |
1528 | Unit *other = NULL; | |
1529 | Iterator i; | |
eef85c4a | 1530 | void *v; |
15ea79f8 LP |
1531 | |
1532 | /* Returns a list of all pending jobs that need to finish before this job may be started. */ | |
1533 | ||
1534 | assert(j); | |
1535 | assert(ret); | |
1536 | ||
1537 | if (j->ignore_order) { | |
1538 | *ret = NULL; | |
1539 | return 0; | |
1540 | } | |
1541 | ||
1542 | if (IN_SET(j->type, JOB_START, JOB_VERIFY_ACTIVE, JOB_RELOAD)) { | |
1543 | ||
eef85c4a | 1544 | HASHMAP_FOREACH_KEY(v, other, j->unit->dependencies[UNIT_AFTER], i) { |
15ea79f8 LP |
1545 | if (!other->job) |
1546 | continue; | |
1547 | ||
1548 | if (!GREEDY_REALLOC(list, n_allocated, n+1)) | |
1549 | return -ENOMEM; | |
1550 | list[n++] = other->job; | |
1551 | } | |
1552 | } | |
1553 | ||
eef85c4a | 1554 | HASHMAP_FOREACH_KEY(v, other, j->unit->dependencies[UNIT_BEFORE], i) { |
15ea79f8 LP |
1555 | if (!other->job) |
1556 | continue; | |
1557 | ||
1558 | if (!IN_SET(other->job->type, JOB_STOP, JOB_RESTART)) | |
1559 | continue; | |
1560 | ||
1561 | if (!GREEDY_REALLOC(list, n_allocated, n+1)) | |
1562 | return -ENOMEM; | |
1563 | list[n++] = other->job; | |
1564 | } | |
1565 | ||
1566 | n = sort_job_list(list, n); | |
1567 | ||
1cc6c93a | 1568 | *ret = TAKE_PTR(list); |
15ea79f8 LP |
1569 | |
1570 | return (int) n; | |
1571 | } | |
1572 | ||
1573 | int job_get_after(Job *j, Job*** ret) { | |
1574 | _cleanup_free_ Job** list = NULL; | |
1575 | size_t n = 0, n_allocated = 0; | |
1576 | Unit *other = NULL; | |
eef85c4a | 1577 | void *v; |
15ea79f8 LP |
1578 | Iterator i; |
1579 | ||
1580 | assert(j); | |
1581 | assert(ret); | |
1582 | ||
1583 | /* Returns a list of all pending jobs that are waiting for this job to finish. */ | |
1584 | ||
eef85c4a | 1585 | HASHMAP_FOREACH_KEY(v, other, j->unit->dependencies[UNIT_BEFORE], i) { |
15ea79f8 LP |
1586 | if (!other->job) |
1587 | continue; | |
1588 | ||
1589 | if (other->job->ignore_order) | |
1590 | continue; | |
1591 | ||
1592 | if (!IN_SET(other->job->type, JOB_START, JOB_VERIFY_ACTIVE, JOB_RELOAD)) | |
1593 | continue; | |
1594 | ||
1595 | if (!GREEDY_REALLOC(list, n_allocated, n+1)) | |
1596 | return -ENOMEM; | |
1597 | list[n++] = other->job; | |
1598 | } | |
1599 | ||
1600 | if (IN_SET(j->type, JOB_STOP, JOB_RESTART)) { | |
1601 | ||
eef85c4a | 1602 | HASHMAP_FOREACH_KEY(v, other, j->unit->dependencies[UNIT_AFTER], i) { |
15ea79f8 LP |
1603 | if (!other->job) |
1604 | continue; | |
1605 | ||
1606 | if (other->job->ignore_order) | |
1607 | continue; | |
1608 | ||
1609 | if (!GREEDY_REALLOC(list, n_allocated, n+1)) | |
1610 | return -ENOMEM; | |
1611 | list[n++] = other->job; | |
1612 | } | |
1613 | } | |
1614 | ||
1615 | n = sort_job_list(list, n); | |
1616 | ||
1cc6c93a | 1617 | *ret = TAKE_PTR(list); |
15ea79f8 LP |
1618 | |
1619 | return (int) n; | |
1620 | } | |
1621 | ||
94f04347 LP |
1622 | static const char* const job_state_table[_JOB_STATE_MAX] = { |
1623 | [JOB_WAITING] = "waiting", | |
0a23a627 | 1624 | [JOB_RUNNING] = "running", |
94f04347 LP |
1625 | }; |
1626 | ||
1627 | DEFINE_STRING_TABLE_LOOKUP(job_state, JobState); | |
1628 | ||
1629 | static const char* const job_type_table[_JOB_TYPE_MAX] = { | |
1630 | [JOB_START] = "start", | |
1631 | [JOB_VERIFY_ACTIVE] = "verify-active", | |
1632 | [JOB_STOP] = "stop", | |
1633 | [JOB_RELOAD] = "reload", | |
1634 | [JOB_RELOAD_OR_START] = "reload-or-start", | |
1635 | [JOB_RESTART] = "restart", | |
1636 | [JOB_TRY_RESTART] = "try-restart", | |
3282591d | 1637 | [JOB_TRY_RELOAD] = "try-reload", |
e0209d83 | 1638 | [JOB_NOP] = "nop", |
94f04347 LP |
1639 | }; |
1640 | ||
1641 | DEFINE_STRING_TABLE_LOOKUP(job_type, JobType); | |
b548631a LP |
1642 | |
1643 | static const char* const job_mode_table[_JOB_MODE_MAX] = { | |
1644 | [JOB_FAIL] = "fail", | |
c497c7a9 | 1645 | [JOB_REPLACE] = "replace", |
23ade460 | 1646 | [JOB_REPLACE_IRREVERSIBLY] = "replace-irreversibly", |
e67c3609 | 1647 | [JOB_ISOLATE] = "isolate", |
2c5859af | 1648 | [JOB_FLUSH] = "flush", |
cebe0d41 | 1649 | [JOB_IGNORE_DEPENDENCIES] = "ignore-dependencies", |
255baef6 | 1650 | [JOB_IGNORE_REQUIREMENTS] = "ignore-requirements", |
b548631a LP |
1651 | }; |
1652 | ||
1653 | DEFINE_STRING_TABLE_LOOKUP(job_mode, JobMode); | |
5d44db4a LP |
1654 | |
1655 | static const char* const job_result_table[_JOB_RESULT_MAX] = { | |
1656 | [JOB_DONE] = "done", | |
1657 | [JOB_CANCELED] = "canceled", | |
1658 | [JOB_TIMEOUT] = "timeout", | |
1659 | [JOB_FAILED] = "failed", | |
d68201e9 | 1660 | [JOB_DEPENDENCY] = "dependency", |
6a371e23 ZJS |
1661 | [JOB_SKIPPED] = "skipped", |
1662 | [JOB_INVALID] = "invalid", | |
59fccdc5 | 1663 | [JOB_ASSERT] = "assert", |
0faacd47 | 1664 | [JOB_UNSUPPORTED] = "unsupported", |
c5a97ed1 | 1665 | [JOB_COLLECTED] = "collected", |
d4fd1cf2 | 1666 | [JOB_ONCE] = "once", |
5d44db4a LP |
1667 | }; |
1668 | ||
1669 | DEFINE_STRING_TABLE_LOOKUP(job_result, JobResult); | |
94bd7323 EV |
1670 | |
1671 | const char* job_type_to_access_method(JobType t) { | |
1672 | assert(t >= 0); | |
1673 | assert(t < _JOB_TYPE_MAX); | |
1674 | ||
1675 | if (IN_SET(t, JOB_START, JOB_RESTART, JOB_TRY_RESTART)) | |
1676 | return "start"; | |
1677 | else if (t == JOB_STOP) | |
1678 | return "stop"; | |
1679 | else | |
1680 | return "reload"; | |
1681 | } |