1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
4 This file is part of systemd.
6 Copyright 2010 Lennart Poettering
8 systemd is free software; you can redistribute it and/or modify it
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
11 (at your option) any later version.
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
16 Lesser General Public License for more details.
18 You should have received a copy of the GNU Lesser General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
24 #include <sys/timerfd.h>
25 #include <sys/epoll.h>
28 #include "sd-messages.h"
33 #include "load-fragment.h"
34 #include "load-dropin.h"
40 #include "dbus-client-track.h"
42 Job* job_new_raw(Unit *unit) {
45 /* used for deserialization */
53 j->manager = unit->manager;
55 j->type = _JOB_TYPE_INVALID;
60 Job* job_new(Unit *unit, JobType type) {
63 assert(type < _JOB_TYPE_MAX);
65 j = job_new_raw(unit);
69 j->id = j->manager->current_job_id++;
72 /* We don't link it here, that's what job_dependency() is for */
77 void job_free(Job *j) {
79 assert(!j->installed);
80 assert(!j->transaction_prev);
81 assert(!j->transaction_next);
82 assert(!j->subject_list);
83 assert(!j->object_list);
86 LIST_REMOVE(run_queue, j->manager->run_queue, j);
89 LIST_REMOVE(dbus_queue, j->manager->dbus_job_queue, j);
91 sd_event_source_unref(j->timer_event_source);
93 bus_client_track_free(j->subscribed);
98 void job_uninstall(Job *j) {
101 assert(j->installed);
103 pj = (j->type == JOB_NOP) ? &j->unit->nop_job : &j->unit->job;
106 /* Detach from next 'bigger' objects */
108 /* daemon-reload should be transparent to job observers */
109 if (j->manager->n_reloading <= 0)
110 bus_job_send_removed_signal(j);
114 unit_add_to_gc_queue(j->unit);
116 hashmap_remove(j->manager->jobs, UINT32_TO_PTR(j->id));
117 j->installed = false;
120 static bool job_type_allows_late_merge(JobType t) {
121 /* Tells whether it is OK to merge a job of type 't' with an already
123 * Reloads cannot be merged this way. Think of the sequence:
124 * 1. Reload of a daemon is in progress; the daemon has already loaded
125 * its config file, but hasn't completed the reload operation yet.
126 * 2. Edit foo's config file.
127 * 3. Trigger another reload to have the daemon use the new config.
128 * Should the second reload job be merged into the first one, the daemon
129 * would not know about the new config.
130 * JOB_RESTART jobs on the other hand can be merged, because they get
131 * patched into JOB_START after stopping the unit. So if we see a
132 * JOB_RESTART running, it means the unit hasn't stopped yet and at
133 * this time the merge is still allowed. */
134 return t != JOB_RELOAD;
137 static void job_merge_into_installed(Job *j, Job *other) {
138 assert(j->installed);
139 assert(j->unit == other->unit);
141 if (j->type != JOB_NOP)
142 job_type_merge_and_collapse(&j->type, other->type, j->unit);
144 assert(other->type == JOB_NOP);
146 j->override = j->override || other->override;
147 j->irreversible = j->irreversible || other->irreversible;
148 j->ignore_order = j->ignore_order || other->ignore_order;
151 Job* job_install(Job *j) {
155 assert(!j->installed);
156 assert(j->type < _JOB_TYPE_MAX_IN_TRANSACTION);
158 pj = (j->type == JOB_NOP) ? &j->unit->nop_job : &j->unit->job;
162 if (j->type != JOB_NOP && job_type_is_conflicting(uj->type, j->type))
163 job_finish_and_invalidate(uj, JOB_CANCELED, false);
165 /* not conflicting, i.e. mergeable */
167 if (j->type == JOB_NOP || uj->state == JOB_WAITING ||
168 (job_type_allows_late_merge(j->type) && job_type_is_superset(uj->type, j->type))) {
169 job_merge_into_installed(uj, j);
170 log_debug_unit(uj->unit->id,
171 "Merged into installed job %s/%s as %u",
172 uj->unit->id, job_type_to_string(uj->type), (unsigned) uj->id);
175 /* already running and not safe to merge into */
176 /* Patch uj to become a merged job and re-run it. */
177 /* XXX It should be safer to queue j to run after uj finishes, but it is
178 * not currently possible to have more than one installed job per unit. */
179 job_merge_into_installed(uj, j);
180 log_debug_unit(uj->unit->id,
181 "Merged into running job, re-running: %s/%s as %u",
182 uj->unit->id, job_type_to_string(uj->type), (unsigned) uj->id);
183 uj->state = JOB_WAITING;
184 uj->manager->n_running_jobs--;
190 /* Install the job */
193 j->manager->n_installed_jobs ++;
194 log_debug_unit(j->unit->id,
195 "Installed new job %s/%s as %u",
196 j->unit->id, job_type_to_string(j->type), (unsigned) j->id);
200 int job_install_deserialized(Job *j) {
203 assert(!j->installed);
205 if (j->type < 0 || j->type >= _JOB_TYPE_MAX_IN_TRANSACTION) {
206 log_debug("Invalid job type %s in deserialization.", strna(job_type_to_string(j->type)));
210 pj = (j->type == JOB_NOP) ? &j->unit->nop_job : &j->unit->job;
213 log_debug_unit(j->unit->id,
214 "Unit %s already has a job installed. Not installing deserialized job.",
220 log_debug_unit(j->unit->id,
221 "Reinstalled deserialized job %s/%s as %u",
222 j->unit->id, job_type_to_string(j->type), (unsigned) j->id);
226 JobDependency* job_dependency_new(Job *subject, Job *object, bool matters, bool conflicts) {
231 /* Adds a new job link, which encodes that the 'subject' job
232 * needs the 'object' job in some way. If 'subject' is NULL
233 * this means the 'anchor' job (i.e. the one the user
234 * explicitly asked for) is the requester. */
236 if (!(l = new0(JobDependency, 1)))
239 l->subject = subject;
241 l->matters = matters;
242 l->conflicts = conflicts;
245 LIST_PREPEND(subject, subject->subject_list, l);
247 LIST_PREPEND(object, object->object_list, l);
252 void job_dependency_free(JobDependency *l) {
256 LIST_REMOVE(subject, l->subject->subject_list, l);
258 LIST_REMOVE(object, l->object->object_list, l);
263 void job_dump(Job *j, FILE*f, const char *prefix) {
272 "%s\tAction: %s -> %s\n"
275 "%s\tIrreversible: %s\n",
277 prefix, j->unit->id, job_type_to_string(j->type),
278 prefix, job_state_to_string(j->state),
279 prefix, yes_no(j->override),
280 prefix, yes_no(j->irreversible));
284 * Merging is commutative, so imagine the matrix as symmetric. We store only
285 * its lower triangle to avoid duplication. We don't store the main diagonal,
286 * because A merged with A is simply A.
288 * If the resulting type is collapsed immediately afterwards (to get rid of
289 * the JOB_RELOAD_OR_START, which lies outside the lookup function's domain),
290 * the following properties hold:
292 * Merging is associative! A merged with B merged with C is the same as
293 * A merged with C merged with B.
295 * Mergeability is transitive! If A can be merged with B and B with C then
298 * Also, if A merged with B cannot be merged with C, then either A or B cannot
299 * be merged with C either.
301 static const JobType job_merging_table[] = {
302 /* What \ With * JOB_START JOB_VERIFY_ACTIVE JOB_STOP JOB_RELOAD */
303 /*********************************************************************************/
305 /*JOB_VERIFY_ACTIVE */ JOB_START,
306 /*JOB_STOP */ -1, -1,
307 /*JOB_RELOAD */ JOB_RELOAD_OR_START, JOB_RELOAD, -1,
308 /*JOB_RESTART */ JOB_RESTART, JOB_RESTART, -1, JOB_RESTART,
311 JobType job_type_lookup_merge(JobType a, JobType b) {
312 assert_cc(ELEMENTSOF(job_merging_table) == _JOB_TYPE_MAX_MERGING * (_JOB_TYPE_MAX_MERGING - 1) / 2);
313 assert(a >= 0 && a < _JOB_TYPE_MAX_MERGING);
314 assert(b >= 0 && b < _JOB_TYPE_MAX_MERGING);
325 return job_merging_table[(a - 1) * a / 2 + b];
328 bool job_type_is_redundant(JobType a, UnitActiveState b) {
338 b == UNIT_INACTIVE ||
341 case JOB_VERIFY_ACTIVE:
352 b == UNIT_ACTIVATING;
355 assert_not_reached("Invalid job type");
359 void job_type_collapse(JobType *t, Unit *u) {
364 case JOB_TRY_RESTART:
365 s = unit_active_state(u);
366 if (UNIT_IS_INACTIVE_OR_DEACTIVATING(s))
372 case JOB_RELOAD_OR_START:
373 s = unit_active_state(u);
374 if (UNIT_IS_INACTIVE_OR_DEACTIVATING(s))
385 int job_type_merge_and_collapse(JobType *a, JobType b, Unit *u) {
386 JobType t = job_type_lookup_merge(*a, b);
390 job_type_collapse(a, u);
394 static bool job_is_runnable(Job *j) {
399 assert(j->installed);
401 /* Checks whether there is any job running for the units this
402 * job needs to be running after (in the case of a 'positive'
403 * job type) or before (in the case of a 'negative' job
406 /* First check if there is an override */
410 if (j->type == JOB_NOP)
413 if (j->type == JOB_START ||
414 j->type == JOB_VERIFY_ACTIVE ||
415 j->type == JOB_RELOAD) {
417 /* Immediate result is that the job is or might be
418 * started. In this case lets wait for the
419 * dependencies, regardless whether they are
420 * starting or stopping something. */
422 SET_FOREACH(other, j->unit->dependencies[UNIT_AFTER], i)
427 /* Also, if something else is being stopped and we should
428 * change state after it, then lets wait. */
430 SET_FOREACH(other, j->unit->dependencies[UNIT_BEFORE], i)
432 (other->job->type == JOB_STOP ||
433 other->job->type == JOB_RESTART))
436 /* This means that for a service a and a service b where b
437 * shall be started after a:
439 * start a + start b → 1st step start a, 2nd step start b
440 * start a + stop b → 1st step stop b, 2nd step start a
441 * stop a + start b → 1st step stop a, 2nd step start b
442 * stop a + stop b → 1st step stop b, 2nd step stop a
444 * This has the side effect that restarts are properly
445 * synchronized too. */
450 static void job_change_type(Job *j, JobType newtype) {
451 log_debug_unit(j->unit->id,
452 "Converting job %s/%s -> %s/%s",
453 j->unit->id, job_type_to_string(j->type),
454 j->unit->id, job_type_to_string(newtype));
459 int job_run_and_invalidate(Job *j) {
462 Manager *m = j->manager;
465 assert(j->installed);
466 assert(j->type < _JOB_TYPE_MAX_IN_TRANSACTION);
467 assert(j->in_run_queue);
469 LIST_REMOVE(run_queue, j->manager->run_queue, j);
470 j->in_run_queue = false;
472 if (j->state != JOB_WAITING)
475 if (!job_is_runnable(j))
478 j->state = JOB_RUNNING;
480 job_add_to_dbus_queue(j);
482 /* While we execute this operation the job might go away (for
483 * example: because it is replaced by a new, conflicting
484 * job.) To make sure we don't access a freed job later on we
485 * store the id here, so that we can verify the job is still
492 r = unit_start(j->unit);
494 /* If this unit cannot be started, then simply wait */
499 case JOB_VERIFY_ACTIVE: {
500 UnitActiveState t = unit_active_state(j->unit);
501 if (UNIT_IS_ACTIVE_OR_RELOADING(t))
503 else if (t == UNIT_ACTIVATING)
512 r = unit_stop(j->unit);
514 /* If this unit cannot stopped, then simply wait. */
520 r = unit_reload(j->unit);
528 assert_not_reached("Unknown job type");
531 j = manager_get_job(m, id);
534 r = job_finish_and_invalidate(j, JOB_DONE, true);
535 else if (r == -ENOEXEC)
536 r = job_finish_and_invalidate(j, JOB_SKIPPED, true);
537 else if (r == -EAGAIN) {
538 j->state = JOB_WAITING;
541 r = job_finish_and_invalidate(j, JOB_FAILED, true);
547 _pure_ static const char *job_get_status_message_format(Unit *u, JobType t, JobResult result) {
548 const UnitStatusMessageFormats *format_table;
552 assert(t < _JOB_TYPE_MAX);
554 format_table = &UNIT_VTABLE(u)->status_message_formats;
559 return format_table->finished_start_job[result];
560 else if (t == JOB_STOP || t == JOB_RESTART)
561 return format_table->finished_stop_job[result];
566 _pure_ static const char *job_get_status_message_format_try_harder(Unit *u, JobType t, JobResult result) {
571 assert(t < _JOB_TYPE_MAX);
573 format = job_get_status_message_format(u, t, result);
577 /* Return generic strings */
578 if (t == JOB_START) {
579 if (result == JOB_DONE)
580 return "Started %s.";
581 else if (result == JOB_FAILED)
582 return "Failed to start %s.";
583 else if (result == JOB_DEPENDENCY)
584 return "Dependency failed for %s.";
585 else if (result == JOB_TIMEOUT)
586 return "Timed out starting %s.";
587 } else if (t == JOB_STOP || t == JOB_RESTART) {
588 if (result == JOB_DONE)
589 return "Stopped %s.";
590 else if (result == JOB_FAILED)
591 return "Stopped (with error) %s.";
592 else if (result == JOB_TIMEOUT)
593 return "Timed out stoppping %s.";
594 } else if (t == JOB_RELOAD) {
595 if (result == JOB_DONE)
596 return "Reloaded %s.";
597 else if (result == JOB_FAILED)
598 return "Reload failed for %s.";
599 else if (result == JOB_TIMEOUT)
600 return "Timed out reloading %s.";
606 static void job_print_status_message(Unit *u, JobType t, JobResult result) {
611 assert(t < _JOB_TYPE_MAX);
613 if (t == JOB_START) {
614 format = job_get_status_message_format(u, t, result);
621 if (u->condition_result)
622 unit_status_printf(u, ANSI_GREEN_ON " OK " ANSI_HIGHLIGHT_OFF, format);
626 unit_status_printf(u, ANSI_HIGHLIGHT_RED_ON "FAILED" ANSI_HIGHLIGHT_OFF, format);
627 manager_status_printf(u->manager, false, NULL, "See 'systemctl status %s' for details.", u->id);
631 unit_status_printf(u, ANSI_HIGHLIGHT_YELLOW_ON "DEPEND" ANSI_HIGHLIGHT_OFF, format);
635 unit_status_printf(u, ANSI_HIGHLIGHT_RED_ON " TIME " ANSI_HIGHLIGHT_OFF, format);
642 } else if (t == JOB_STOP || t == JOB_RESTART) {
644 format = job_get_status_message_format(u, t, result);
651 unit_status_printf(u, ANSI_HIGHLIGHT_RED_ON " TIME " ANSI_HIGHLIGHT_OFF, format);
656 unit_status_printf(u, ANSI_GREEN_ON " OK " ANSI_HIGHLIGHT_OFF, format);
663 } else if (t == JOB_VERIFY_ACTIVE) {
665 /* When verify-active detects the unit is inactive, report it.
666 * Most likely a DEPEND warning from a requisiting unit will
667 * occur next and it's nice to see what was requisited. */
668 if (result == JOB_SKIPPED)
669 unit_status_printf(u, ANSI_HIGHLIGHT_ON " INFO " ANSI_HIGHLIGHT_OFF, "%s is not active.");
673 #pragma GCC diagnostic push
674 #pragma GCC diagnostic ignored "-Wformat-nonliteral"
675 static void job_log_status_message(Unit *u, JobType t, JobResult result) {
681 assert(t < _JOB_TYPE_MAX);
683 /* Skip this if it goes to the console. since we already print
684 * to the console anyway... */
686 if (log_on_console())
689 format = job_get_status_message_format_try_harder(u, t, result);
693 snprintf(buf, sizeof(buf), format, unit_description(u));
696 if (t == JOB_START) {
699 mid = result == JOB_DONE ? SD_MESSAGE_UNIT_STARTED : SD_MESSAGE_UNIT_FAILED;
700 log_struct_unit(result == JOB_DONE ? LOG_INFO : LOG_ERR,
703 "RESULT=%s", job_result_to_string(result),
707 } else if (t == JOB_STOP)
708 log_struct_unit(result == JOB_DONE ? LOG_INFO : LOG_ERR,
710 MESSAGE_ID(SD_MESSAGE_UNIT_STOPPED),
711 "RESULT=%s", job_result_to_string(result),
715 else if (t == JOB_RELOAD)
716 log_struct_unit(result == JOB_DONE ? LOG_INFO : LOG_ERR,
718 MESSAGE_ID(SD_MESSAGE_UNIT_RELOADED),
719 "RESULT=%s", job_result_to_string(result),
723 #pragma GCC diagnostic pop
725 int job_finish_and_invalidate(Job *j, JobResult result, bool recursive) {
732 assert(j->installed);
733 assert(j->type < _JOB_TYPE_MAX_IN_TRANSACTION);
740 if (j->state == JOB_RUNNING)
741 j->manager->n_running_jobs--;
743 log_debug_unit(u->id, "Job %s/%s finished, result=%s",
744 u->id, job_type_to_string(t), job_result_to_string(result));
746 job_print_status_message(u, t, result);
747 job_log_status_message(u, t, result);
749 job_add_to_dbus_queue(j);
751 /* Patch restart jobs so that they become normal start jobs */
752 if (result == JOB_DONE && t == JOB_RESTART) {
754 job_change_type(j, JOB_START);
755 j->state = JOB_WAITING;
757 job_add_to_run_queue(j);
762 if (result == JOB_FAILED)
763 j->manager->n_failed_jobs ++;
768 /* Fail depending jobs on failure */
769 if (result != JOB_DONE && recursive) {
771 if (t == JOB_START ||
772 t == JOB_VERIFY_ACTIVE) {
774 SET_FOREACH(other, u->dependencies[UNIT_REQUIRED_BY], i)
776 (other->job->type == JOB_START ||
777 other->job->type == JOB_VERIFY_ACTIVE))
778 job_finish_and_invalidate(other->job, JOB_DEPENDENCY, true);
780 SET_FOREACH(other, u->dependencies[UNIT_BOUND_BY], i)
782 (other->job->type == JOB_START ||
783 other->job->type == JOB_VERIFY_ACTIVE))
784 job_finish_and_invalidate(other->job, JOB_DEPENDENCY, true);
786 SET_FOREACH(other, u->dependencies[UNIT_REQUIRED_BY_OVERRIDABLE], i)
788 !other->job->override &&
789 (other->job->type == JOB_START ||
790 other->job->type == JOB_VERIFY_ACTIVE))
791 job_finish_and_invalidate(other->job, JOB_DEPENDENCY, true);
793 } else if (t == JOB_STOP) {
795 SET_FOREACH(other, u->dependencies[UNIT_CONFLICTED_BY], i)
797 (other->job->type == JOB_START ||
798 other->job->type == JOB_VERIFY_ACTIVE))
799 job_finish_and_invalidate(other->job, JOB_DEPENDENCY, true);
803 /* Trigger OnFailure dependencies that are not generated by
804 * the unit itself. We don't treat JOB_CANCELED as failure in
805 * this context. And JOB_FAILURE is already handled by the
807 if (result == JOB_TIMEOUT || result == JOB_DEPENDENCY) {
808 log_struct_unit(LOG_NOTICE,
810 "JOB_TYPE=%s", job_type_to_string(t),
811 "JOB_RESULT=%s", job_result_to_string(result),
812 "Job %s/%s failed with result '%s'.",
814 job_type_to_string(t),
815 job_result_to_string(result),
818 unit_start_on_failure(u);
821 unit_trigger_notify(u);
824 /* Try to start the next jobs that can be started */
825 SET_FOREACH(other, u->dependencies[UNIT_AFTER], i)
827 job_add_to_run_queue(other->job);
828 SET_FOREACH(other, u->dependencies[UNIT_BEFORE], i)
830 job_add_to_run_queue(other->job);
832 manager_check_finished(u->manager);
837 static int job_dispatch_timer(sd_event_source *s, uint64_t monotonic, void *userdata) {
841 assert(s == j->timer_event_source);
843 log_warning_unit(j->unit->id, "Job %s/%s timed out.",
844 j->unit->id, job_type_to_string(j->type));
846 job_finish_and_invalidate(j, JOB_TIMEOUT, true);
850 int job_start_timer(Job *j) {
853 if (j->unit->job_timeout <= 0 || j->timer_event_source)
856 j->begin_usec = now(CLOCK_MONOTONIC);
858 r = sd_event_add_monotonic(j->manager->event, j->begin_usec + j->unit->job_timeout, 0, job_dispatch_timer, j, &j->timer_event_source);
865 void job_add_to_run_queue(Job *j) {
867 assert(j->installed);
872 LIST_PREPEND(run_queue, j->manager->run_queue, j);
873 j->in_run_queue = true;
876 void job_add_to_dbus_queue(Job *j) {
878 assert(j->installed);
880 if (j->in_dbus_queue)
883 /* We don't check if anybody is subscribed here, since this
884 * job might just have been created and not yet assigned to a
885 * connection/client. */
887 LIST_PREPEND(dbus_queue, j->manager->dbus_job_queue, j);
888 j->in_dbus_queue = true;
891 char *job_dbus_path(Job *j) {
896 if (asprintf(&p, "/org/freedesktop/systemd1/job/%lu", (unsigned long) j->id) < 0)
902 int job_serialize(Job *j, FILE *f, FDSet *fds) {
903 fprintf(f, "job-id=%u\n", j->id);
904 fprintf(f, "job-type=%s\n", job_type_to_string(j->type));
905 fprintf(f, "job-state=%s\n", job_state_to_string(j->state));
906 fprintf(f, "job-override=%s\n", yes_no(j->override));
907 fprintf(f, "job-irreversible=%s\n", yes_no(j->irreversible));
908 fprintf(f, "job-sent-dbus-new-signal=%s\n", yes_no(j->sent_dbus_new_signal));
909 fprintf(f, "job-ignore-order=%s\n", yes_no(j->ignore_order));
911 if (j->begin_usec > 0)
912 fprintf(f, "job-begin=%llu", (unsigned long long) j->begin_usec);
914 bus_client_track_serialize(j->manager, f, j->subscribed);
921 int job_deserialize(Job *j, FILE *f, FDSet *fds) {
925 char line[LINE_MAX], *l, *v;
928 if (!fgets(line, sizeof(line), f)) {
949 if (streq(l, "job-id")) {
951 if (safe_atou32(v, &j->id) < 0)
952 log_debug("Failed to parse job id value %s", v);
954 } else if (streq(l, "job-type")) {
957 t = job_type_from_string(v);
959 log_debug("Failed to parse job type %s", v);
960 else if (t >= _JOB_TYPE_MAX_IN_TRANSACTION)
961 log_debug("Cannot deserialize job of type %s", v);
965 } else if (streq(l, "job-state")) {
968 s = job_state_from_string(v);
970 log_debug("Failed to parse job state %s", v);
974 } else if (streq(l, "job-override")) {
977 b = parse_boolean(v);
979 log_debug("Failed to parse job override flag %s", v);
981 j->override = j->override || b;
983 } else if (streq(l, "job-irreversible")) {
986 b = parse_boolean(v);
988 log_debug("Failed to parse job irreversible flag %s", v);
990 j->irreversible = j->irreversible || b;
992 } else if (streq(l, "job-sent-dbus-new-signal")) {
995 b = parse_boolean(v);
997 log_debug("Failed to parse job sent_dbus_new_signal flag %s", v);
999 j->sent_dbus_new_signal = j->sent_dbus_new_signal || b;
1001 } else if (streq(l, "job-ignore-order")) {
1004 b = parse_boolean(v);
1006 log_debug("Failed to parse job ignore_order flag %s", v);
1008 j->ignore_order = j->ignore_order || b;
1010 } else if (streq(l, "job-begin")) {
1011 unsigned long long ull;
1013 if (sscanf(v, "%llu", &ull) != 1)
1014 log_debug("Failed to parse job-begin value %s", v);
1016 j->begin_usec = ull;
1019 char t[strlen(l) + 1 + strlen(v) + 1];
1021 strcpy(stpcpy(stpcpy(t, l), "="), v);
1023 if (bus_client_track_deserialize_item(j->manager, &j->subscribed, t) == 0)
1024 log_debug("Unknown deserialization key '%s'", l);
1029 int job_coldplug(Job *j) {
1034 if (j->begin_usec <= 0)
1037 if (j->timer_event_source)
1038 j->timer_event_source = sd_event_source_unref(j->timer_event_source);
1040 r = sd_event_add_monotonic(j->manager->event, j->begin_usec + j->unit->job_timeout, 0, job_dispatch_timer, j, &j->timer_event_source);
1042 log_debug("Failed to restart timeout for job: %s", strerror(-r));
1047 void job_shutdown_magic(Job *j) {
1050 /* The shutdown target gets some special treatment here: we
1051 * tell the kernel to begin with flushing its disk caches, to
1052 * optimize shutdown time a bit. Ideally we wouldn't hardcode
1053 * this magic into PID 1. However all other processes aren't
1054 * options either since they'd exit much sooner than PID 1 and
1055 * asynchronous sync() would cause their exit to be
1058 if (j->type != JOB_START)
1061 if (j->unit->manager->running_as != SYSTEMD_SYSTEM)
1064 if (!unit_has_name(j->unit, SPECIAL_SHUTDOWN_TARGET))
1067 /* In case messages on console has been disabled on boot */
1068 j->unit->manager->no_console_output = false;
1070 if (detect_container(NULL) > 0)
1073 asynchronous_sync();
1076 static const char* const job_state_table[_JOB_STATE_MAX] = {
1077 [JOB_WAITING] = "waiting",
1078 [JOB_RUNNING] = "running"
1081 DEFINE_STRING_TABLE_LOOKUP(job_state, JobState);
1083 static const char* const job_type_table[_JOB_TYPE_MAX] = {
1084 [JOB_START] = "start",
1085 [JOB_VERIFY_ACTIVE] = "verify-active",
1086 [JOB_STOP] = "stop",
1087 [JOB_RELOAD] = "reload",
1088 [JOB_RELOAD_OR_START] = "reload-or-start",
1089 [JOB_RESTART] = "restart",
1090 [JOB_TRY_RESTART] = "try-restart",
1094 DEFINE_STRING_TABLE_LOOKUP(job_type, JobType);
1096 static const char* const job_mode_table[_JOB_MODE_MAX] = {
1097 [JOB_FAIL] = "fail",
1098 [JOB_REPLACE] = "replace",
1099 [JOB_REPLACE_IRREVERSIBLY] = "replace-irreversibly",
1100 [JOB_ISOLATE] = "isolate",
1101 [JOB_IGNORE_DEPENDENCIES] = "ignore-dependencies",
1102 [JOB_IGNORE_REQUIREMENTS] = "ignore-requirements"
1105 DEFINE_STRING_TABLE_LOOKUP(job_mode, JobMode);
1107 static const char* const job_result_table[_JOB_RESULT_MAX] = {
1108 [JOB_DONE] = "done",
1109 [JOB_CANCELED] = "canceled",
1110 [JOB_TIMEOUT] = "timeout",
1111 [JOB_FAILED] = "failed",
1112 [JOB_DEPENDENCY] = "dependency",
1113 [JOB_SKIPPED] = "skipped"
1116 DEFINE_STRING_TABLE_LOOKUP(job_result, JobResult);