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"
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 sd_bus_track_unref(j->clients);
94 strv_free(j->deserialized_clients);
99 void job_uninstall(Job *j) {
102 assert(j->installed);
104 pj = (j->type == JOB_NOP) ? &j->unit->nop_job : &j->unit->job;
107 /* Detach from next 'bigger' objects */
109 /* daemon-reload should be transparent to job observers */
110 if (j->manager->n_reloading <= 0)
111 bus_job_send_removed_signal(j);
115 unit_add_to_gc_queue(j->unit);
117 hashmap_remove(j->manager->jobs, UINT32_TO_PTR(j->id));
118 j->installed = false;
121 static bool job_type_allows_late_merge(JobType t) {
122 /* Tells whether it is OK to merge a job of type 't' with an already
124 * Reloads cannot be merged this way. Think of the sequence:
125 * 1. Reload of a daemon is in progress; the daemon has already loaded
126 * its config file, but hasn't completed the reload operation yet.
127 * 2. Edit foo's config file.
128 * 3. Trigger another reload to have the daemon use the new config.
129 * Should the second reload job be merged into the first one, the daemon
130 * would not know about the new config.
131 * JOB_RESTART jobs on the other hand can be merged, because they get
132 * patched into JOB_START after stopping the unit. So if we see a
133 * JOB_RESTART running, it means the unit hasn't stopped yet and at
134 * this time the merge is still allowed. */
135 return t != JOB_RELOAD;
138 static void job_merge_into_installed(Job *j, Job *other) {
139 assert(j->installed);
140 assert(j->unit == other->unit);
142 if (j->type != JOB_NOP)
143 job_type_merge_and_collapse(&j->type, other->type, j->unit);
145 assert(other->type == JOB_NOP);
147 j->override = j->override || other->override;
148 j->irreversible = j->irreversible || other->irreversible;
149 j->ignore_order = j->ignore_order || other->ignore_order;
152 Job* job_install(Job *j) {
156 assert(!j->installed);
157 assert(j->type < _JOB_TYPE_MAX_IN_TRANSACTION);
159 pj = (j->type == JOB_NOP) ? &j->unit->nop_job : &j->unit->job;
163 if (j->type != JOB_NOP && job_type_is_conflicting(uj->type, j->type))
164 job_finish_and_invalidate(uj, JOB_CANCELED, false);
166 /* not conflicting, i.e. mergeable */
168 if (j->type == JOB_NOP || uj->state == JOB_WAITING ||
169 (job_type_allows_late_merge(j->type) && job_type_is_superset(uj->type, j->type))) {
170 job_merge_into_installed(uj, j);
171 log_debug_unit(uj->unit->id,
172 "Merged into installed job %s/%s as %u",
173 uj->unit->id, job_type_to_string(uj->type), (unsigned) uj->id);
176 /* already running and not safe to merge into */
177 /* Patch uj to become a merged job and re-run it. */
178 /* XXX It should be safer to queue j to run after uj finishes, but it is
179 * not currently possible to have more than one installed job per unit. */
180 job_merge_into_installed(uj, j);
181 log_debug_unit(uj->unit->id,
182 "Merged into running job, re-running: %s/%s as %u",
183 uj->unit->id, job_type_to_string(uj->type), (unsigned) uj->id);
184 uj->state = JOB_WAITING;
185 uj->manager->n_running_jobs--;
191 /* Install the job */
194 j->manager->n_installed_jobs ++;
195 log_debug_unit(j->unit->id,
196 "Installed new job %s/%s as %u",
197 j->unit->id, job_type_to_string(j->type), (unsigned) j->id);
201 int job_install_deserialized(Job *j) {
204 assert(!j->installed);
206 if (j->type < 0 || j->type >= _JOB_TYPE_MAX_IN_TRANSACTION) {
207 log_debug("Invalid job type %s in deserialization.", strna(job_type_to_string(j->type)));
211 pj = (j->type == JOB_NOP) ? &j->unit->nop_job : &j->unit->job;
214 log_debug_unit(j->unit->id,
215 "Unit %s already has a job installed. Not installing deserialized job.",
221 log_debug_unit(j->unit->id,
222 "Reinstalled deserialized job %s/%s as %u",
223 j->unit->id, job_type_to_string(j->type), (unsigned) j->id);
227 JobDependency* job_dependency_new(Job *subject, Job *object, bool matters, bool conflicts) {
232 /* Adds a new job link, which encodes that the 'subject' job
233 * needs the 'object' job in some way. If 'subject' is NULL
234 * this means the 'anchor' job (i.e. the one the user
235 * explicitly asked for) is the requester. */
237 if (!(l = new0(JobDependency, 1)))
240 l->subject = subject;
242 l->matters = matters;
243 l->conflicts = conflicts;
246 LIST_PREPEND(subject, subject->subject_list, l);
248 LIST_PREPEND(object, object->object_list, l);
253 void job_dependency_free(JobDependency *l) {
257 LIST_REMOVE(subject, l->subject->subject_list, l);
259 LIST_REMOVE(object, l->object->object_list, l);
264 void job_dump(Job *j, FILE*f, const char *prefix) {
273 "%s\tAction: %s -> %s\n"
276 "%s\tIrreversible: %s\n",
278 prefix, j->unit->id, job_type_to_string(j->type),
279 prefix, job_state_to_string(j->state),
280 prefix, yes_no(j->override),
281 prefix, yes_no(j->irreversible));
285 * Merging is commutative, so imagine the matrix as symmetric. We store only
286 * its lower triangle to avoid duplication. We don't store the main diagonal,
287 * because A merged with A is simply A.
289 * If the resulting type is collapsed immediately afterwards (to get rid of
290 * the JOB_RELOAD_OR_START, which lies outside the lookup function's domain),
291 * the following properties hold:
293 * Merging is associative! A merged with B merged with C is the same as
294 * A merged with C merged with B.
296 * Mergeability is transitive! If A can be merged with B and B with C then
299 * Also, if A merged with B cannot be merged with C, then either A or B cannot
300 * be merged with C either.
302 static const JobType job_merging_table[] = {
303 /* What \ With * JOB_START JOB_VERIFY_ACTIVE JOB_STOP JOB_RELOAD */
304 /*********************************************************************************/
306 /*JOB_VERIFY_ACTIVE */ JOB_START,
307 /*JOB_STOP */ -1, -1,
308 /*JOB_RELOAD */ JOB_RELOAD_OR_START, JOB_RELOAD, -1,
309 /*JOB_RESTART */ JOB_RESTART, JOB_RESTART, -1, JOB_RESTART,
312 JobType job_type_lookup_merge(JobType a, JobType b) {
313 assert_cc(ELEMENTSOF(job_merging_table) == _JOB_TYPE_MAX_MERGING * (_JOB_TYPE_MAX_MERGING - 1) / 2);
314 assert(a >= 0 && a < _JOB_TYPE_MAX_MERGING);
315 assert(b >= 0 && b < _JOB_TYPE_MAX_MERGING);
326 return job_merging_table[(a - 1) * a / 2 + b];
329 bool job_type_is_redundant(JobType a, UnitActiveState b) {
339 b == UNIT_INACTIVE ||
342 case JOB_VERIFY_ACTIVE:
353 b == UNIT_ACTIVATING;
356 assert_not_reached("Invalid job type");
360 void job_type_collapse(JobType *t, Unit *u) {
365 case JOB_TRY_RESTART:
366 s = unit_active_state(u);
367 if (UNIT_IS_INACTIVE_OR_DEACTIVATING(s))
373 case JOB_RELOAD_OR_START:
374 s = unit_active_state(u);
375 if (UNIT_IS_INACTIVE_OR_DEACTIVATING(s))
386 int job_type_merge_and_collapse(JobType *a, JobType b, Unit *u) {
387 JobType t = job_type_lookup_merge(*a, b);
391 job_type_collapse(a, u);
395 static bool job_is_runnable(Job *j) {
400 assert(j->installed);
402 /* Checks whether there is any job running for the units this
403 * job needs to be running after (in the case of a 'positive'
404 * job type) or before (in the case of a 'negative' job
407 /* Note that unit types have a say in what is runnable,
408 * too. For example, if they return -EAGAIN from
409 * unit_start() they can indicate they are not
412 /* First check if there is an override */
416 if (j->type == JOB_NOP)
419 if (j->type == JOB_START ||
420 j->type == JOB_VERIFY_ACTIVE ||
421 j->type == JOB_RELOAD) {
423 /* Immediate result is that the job is or might be
424 * started. In this case lets wait for the
425 * dependencies, regardless whether they are
426 * starting or stopping something. */
428 SET_FOREACH(other, j->unit->dependencies[UNIT_AFTER], i)
433 /* Also, if something else is being stopped and we should
434 * change state after it, then lets wait. */
436 SET_FOREACH(other, j->unit->dependencies[UNIT_BEFORE], i)
438 (other->job->type == JOB_STOP ||
439 other->job->type == JOB_RESTART))
442 /* This means that for a service a and a service b where b
443 * shall be started after a:
445 * start a + start b → 1st step start a, 2nd step start b
446 * start a + stop b → 1st step stop b, 2nd step start a
447 * stop a + start b → 1st step stop a, 2nd step start b
448 * stop a + stop b → 1st step stop b, 2nd step stop a
450 * This has the side effect that restarts are properly
451 * synchronized too. */
456 static void job_change_type(Job *j, JobType newtype) {
457 log_debug_unit(j->unit->id,
458 "Converting job %s/%s -> %s/%s",
459 j->unit->id, job_type_to_string(j->type),
460 j->unit->id, job_type_to_string(newtype));
465 int job_run_and_invalidate(Job *j) {
468 Manager *m = j->manager;
471 assert(j->installed);
472 assert(j->type < _JOB_TYPE_MAX_IN_TRANSACTION);
473 assert(j->in_run_queue);
475 LIST_REMOVE(run_queue, j->manager->run_queue, j);
476 j->in_run_queue = false;
478 if (j->state != JOB_WAITING)
481 if (!job_is_runnable(j))
484 j->state = JOB_RUNNING;
486 job_add_to_dbus_queue(j);
488 /* While we execute this operation the job might go away (for
489 * example: because it is replaced by a new, conflicting
490 * job.) To make sure we don't access a freed job later on we
491 * store the id here, so that we can verify the job is still
498 r = unit_start(j->unit);
500 /* If this unit cannot be started, then simply wait */
505 case JOB_VERIFY_ACTIVE: {
506 UnitActiveState t = unit_active_state(j->unit);
507 if (UNIT_IS_ACTIVE_OR_RELOADING(t))
509 else if (t == UNIT_ACTIVATING)
518 r = unit_stop(j->unit);
520 /* If this unit cannot stopped, then simply wait. */
526 r = unit_reload(j->unit);
534 assert_not_reached("Unknown job type");
537 j = manager_get_job(m, id);
540 r = job_finish_and_invalidate(j, JOB_DONE, true);
541 else if (r == -EBADR)
542 r = job_finish_and_invalidate(j, JOB_SKIPPED, true);
543 else if (r == -ENOEXEC)
544 r = job_finish_and_invalidate(j, JOB_INVALID, true);
545 else if (r == -EAGAIN) {
546 j->state = JOB_WAITING;
549 r = job_finish_and_invalidate(j, JOB_FAILED, true);
555 _pure_ static const char *job_get_status_message_format(Unit *u, JobType t, JobResult result) {
556 const UnitStatusMessageFormats *format_table;
560 assert(t < _JOB_TYPE_MAX);
562 format_table = &UNIT_VTABLE(u)->status_message_formats;
567 return format_table->finished_start_job[result];
568 else if (t == JOB_STOP || t == JOB_RESTART)
569 return format_table->finished_stop_job[result];
574 _pure_ static const char *job_get_status_message_format_try_harder(Unit *u, JobType t, JobResult result) {
579 assert(t < _JOB_TYPE_MAX);
581 format = job_get_status_message_format(u, t, result);
585 /* Return generic strings */
586 if (t == JOB_START) {
587 if (result == JOB_DONE)
588 return "Started %s.";
589 else if (result == JOB_FAILED)
590 return "Failed to start %s.";
591 else if (result == JOB_DEPENDENCY)
592 return "Dependency failed for %s.";
593 else if (result == JOB_TIMEOUT)
594 return "Timed out starting %s.";
595 } else if (t == JOB_STOP || t == JOB_RESTART) {
596 if (result == JOB_DONE)
597 return "Stopped %s.";
598 else if (result == JOB_FAILED)
599 return "Stopped (with error) %s.";
600 else if (result == JOB_TIMEOUT)
601 return "Timed out stoppping %s.";
602 } else if (t == JOB_RELOAD) {
603 if (result == JOB_DONE)
604 return "Reloaded %s.";
605 else if (result == JOB_FAILED)
606 return "Reload failed for %s.";
607 else if (result == JOB_TIMEOUT)
608 return "Timed out reloading %s.";
614 static void job_print_status_message(Unit *u, JobType t, JobResult result) {
619 assert(t < _JOB_TYPE_MAX);
621 DISABLE_WARNING_FORMAT_NONLITERAL;
623 if (t == JOB_START) {
624 format = job_get_status_message_format(u, t, result);
631 if (u->condition_result)
632 unit_status_printf(u, ANSI_GREEN_ON " OK " ANSI_HIGHLIGHT_OFF, format);
638 quotes = chars_intersect(u->id, SHELL_NEED_QUOTES);
640 manager_flip_auto_status(u->manager, true);
641 unit_status_printf(u, ANSI_HIGHLIGHT_RED_ON "FAILED" ANSI_HIGHLIGHT_OFF, format);
642 manager_status_printf(u->manager, false, NULL,
643 "See \"systemctl status %s%s%s\" for details.",
644 quotes ? "'" : "", u->id, quotes ? "'" : "");
649 manager_flip_auto_status(u->manager, true);
650 unit_status_printf(u, ANSI_HIGHLIGHT_YELLOW_ON "DEPEND" ANSI_HIGHLIGHT_OFF, format);
654 manager_flip_auto_status(u->manager, true);
655 unit_status_printf(u, ANSI_HIGHLIGHT_RED_ON " TIME " ANSI_HIGHLIGHT_OFF, format);
662 } else if (t == JOB_STOP || t == JOB_RESTART) {
664 format = job_get_status_message_format(u, t, result);
671 manager_flip_auto_status(u->manager, true);
672 unit_status_printf(u, ANSI_HIGHLIGHT_RED_ON " TIME " ANSI_HIGHLIGHT_OFF, format);
677 unit_status_printf(u, ANSI_GREEN_ON " OK " ANSI_HIGHLIGHT_OFF, format);
684 } else if (t == JOB_VERIFY_ACTIVE) {
686 /* When verify-active detects the unit is inactive, report it.
687 * Most likely a DEPEND warning from a requisiting unit will
688 * occur next and it's nice to see what was requisited. */
689 if (result == JOB_SKIPPED)
690 unit_status_printf(u, ANSI_HIGHLIGHT_ON " INFO " ANSI_HIGHLIGHT_OFF, "%s is not active.");
696 static void job_log_status_message(Unit *u, JobType t, JobResult result) {
702 assert(t < _JOB_TYPE_MAX);
704 /* Skip this if it goes to the console. since we already print
705 * to the console anyway... */
707 if (log_on_console())
710 format = job_get_status_message_format_try_harder(u, t, result);
714 DISABLE_WARNING_FORMAT_NONLITERAL;
715 snprintf(buf, sizeof(buf), format, unit_description(u));
719 if (t == JOB_START) {
722 mid = result == JOB_DONE ? SD_MESSAGE_UNIT_STARTED : SD_MESSAGE_UNIT_FAILED;
723 log_struct_unit(result == JOB_DONE ? LOG_INFO : LOG_ERR,
726 "RESULT=%s", job_result_to_string(result),
730 } else if (t == JOB_STOP)
731 log_struct_unit(result == JOB_DONE ? LOG_INFO : LOG_ERR,
733 MESSAGE_ID(SD_MESSAGE_UNIT_STOPPED),
734 "RESULT=%s", job_result_to_string(result),
738 else if (t == JOB_RELOAD)
739 log_struct_unit(result == JOB_DONE ? LOG_INFO : LOG_ERR,
741 MESSAGE_ID(SD_MESSAGE_UNIT_RELOADED),
742 "RESULT=%s", job_result_to_string(result),
747 int job_finish_and_invalidate(Job *j, JobResult result, bool recursive) {
754 assert(j->installed);
755 assert(j->type < _JOB_TYPE_MAX_IN_TRANSACTION);
762 if (j->state == JOB_RUNNING)
763 j->manager->n_running_jobs--;
765 log_debug_unit(u->id, "Job %s/%s finished, result=%s",
766 u->id, job_type_to_string(t), job_result_to_string(result));
768 job_print_status_message(u, t, result);
769 job_log_status_message(u, t, result);
771 job_add_to_dbus_queue(j);
773 /* Patch restart jobs so that they become normal start jobs */
774 if (result == JOB_DONE && t == JOB_RESTART) {
776 job_change_type(j, JOB_START);
777 j->state = JOB_WAITING;
779 job_add_to_run_queue(j);
784 if (result == JOB_FAILED || result == JOB_INVALID)
785 j->manager->n_failed_jobs ++;
790 /* Fail depending jobs on failure */
791 if (result != JOB_DONE && recursive) {
793 if (t == JOB_START ||
794 t == JOB_VERIFY_ACTIVE) {
796 SET_FOREACH(other, u->dependencies[UNIT_REQUIRED_BY], i)
798 (other->job->type == JOB_START ||
799 other->job->type == JOB_VERIFY_ACTIVE))
800 job_finish_and_invalidate(other->job, JOB_DEPENDENCY, true);
802 SET_FOREACH(other, u->dependencies[UNIT_BOUND_BY], i)
804 (other->job->type == JOB_START ||
805 other->job->type == JOB_VERIFY_ACTIVE))
806 job_finish_and_invalidate(other->job, JOB_DEPENDENCY, true);
808 SET_FOREACH(other, u->dependencies[UNIT_REQUIRED_BY_OVERRIDABLE], i)
810 !other->job->override &&
811 (other->job->type == JOB_START ||
812 other->job->type == JOB_VERIFY_ACTIVE))
813 job_finish_and_invalidate(other->job, JOB_DEPENDENCY, true);
815 } else if (t == JOB_STOP) {
817 SET_FOREACH(other, u->dependencies[UNIT_CONFLICTED_BY], i)
819 (other->job->type == JOB_START ||
820 other->job->type == JOB_VERIFY_ACTIVE))
821 job_finish_and_invalidate(other->job, JOB_DEPENDENCY, true);
825 /* Trigger OnFailure dependencies that are not generated by
826 * the unit itself. We don't treat JOB_CANCELED as failure in
827 * this context. And JOB_FAILURE is already handled by the
829 if (result == JOB_TIMEOUT || result == JOB_DEPENDENCY) {
830 log_struct_unit(LOG_NOTICE,
832 "JOB_TYPE=%s", job_type_to_string(t),
833 "JOB_RESULT=%s", job_result_to_string(result),
834 "Job %s/%s failed with result '%s'.",
836 job_type_to_string(t),
837 job_result_to_string(result),
840 unit_start_on_failure(u);
843 unit_trigger_notify(u);
846 /* Try to start the next jobs that can be started */
847 SET_FOREACH(other, u->dependencies[UNIT_AFTER], i)
849 job_add_to_run_queue(other->job);
850 SET_FOREACH(other, u->dependencies[UNIT_BEFORE], i)
852 job_add_to_run_queue(other->job);
854 manager_check_finished(u->manager);
859 static int job_dispatch_timer(sd_event_source *s, uint64_t monotonic, void *userdata) {
863 assert(s == j->timer_event_source);
865 log_warning_unit(j->unit->id, "Job %s/%s timed out.",
866 j->unit->id, job_type_to_string(j->type));
868 job_finish_and_invalidate(j, JOB_TIMEOUT, true);
872 int job_start_timer(Job *j) {
875 if (j->timer_event_source)
878 j->begin_usec = now(CLOCK_MONOTONIC);
880 if (j->unit->job_timeout <= 0)
883 r = sd_event_add_time(
885 &j->timer_event_source,
887 j->begin_usec + j->unit->job_timeout, 0,
888 job_dispatch_timer, j);
895 void job_add_to_run_queue(Job *j) {
897 assert(j->installed);
902 if (!j->manager->run_queue)
903 sd_event_source_set_enabled(j->manager->run_queue_event_source, SD_EVENT_ONESHOT);
905 LIST_PREPEND(run_queue, j->manager->run_queue, j);
906 j->in_run_queue = true;
909 void job_add_to_dbus_queue(Job *j) {
911 assert(j->installed);
913 if (j->in_dbus_queue)
916 /* We don't check if anybody is subscribed here, since this
917 * job might just have been created and not yet assigned to a
918 * connection/client. */
920 LIST_PREPEND(dbus_queue, j->manager->dbus_job_queue, j);
921 j->in_dbus_queue = true;
924 char *job_dbus_path(Job *j) {
929 if (asprintf(&p, "/org/freedesktop/systemd1/job/%"PRIu32, j->id) < 0)
935 int job_serialize(Job *j, FILE *f, FDSet *fds) {
936 fprintf(f, "job-id=%u\n", j->id);
937 fprintf(f, "job-type=%s\n", job_type_to_string(j->type));
938 fprintf(f, "job-state=%s\n", job_state_to_string(j->state));
939 fprintf(f, "job-override=%s\n", yes_no(j->override));
940 fprintf(f, "job-irreversible=%s\n", yes_no(j->irreversible));
941 fprintf(f, "job-sent-dbus-new-signal=%s\n", yes_no(j->sent_dbus_new_signal));
942 fprintf(f, "job-ignore-order=%s\n", yes_no(j->ignore_order));
944 if (j->begin_usec > 0)
945 fprintf(f, "job-begin="USEC_FMT"\n", j->begin_usec);
947 bus_track_serialize(j->clients, f);
954 int job_deserialize(Job *j, FILE *f, FDSet *fds) {
958 char line[LINE_MAX], *l, *v;
961 if (!fgets(line, sizeof(line), f)) {
982 if (streq(l, "job-id")) {
984 if (safe_atou32(v, &j->id) < 0)
985 log_debug("Failed to parse job id value %s", v);
987 } else if (streq(l, "job-type")) {
990 t = job_type_from_string(v);
992 log_debug("Failed to parse job type %s", v);
993 else if (t >= _JOB_TYPE_MAX_IN_TRANSACTION)
994 log_debug("Cannot deserialize job of type %s", v);
998 } else if (streq(l, "job-state")) {
1001 s = job_state_from_string(v);
1003 log_debug("Failed to parse job state %s", v);
1007 } else if (streq(l, "job-override")) {
1010 b = parse_boolean(v);
1012 log_debug("Failed to parse job override flag %s", v);
1014 j->override = j->override || b;
1016 } else if (streq(l, "job-irreversible")) {
1019 b = parse_boolean(v);
1021 log_debug("Failed to parse job irreversible flag %s", v);
1023 j->irreversible = j->irreversible || b;
1025 } else if (streq(l, "job-sent-dbus-new-signal")) {
1028 b = parse_boolean(v);
1030 log_debug("Failed to parse job sent_dbus_new_signal flag %s", v);
1032 j->sent_dbus_new_signal = j->sent_dbus_new_signal || b;
1034 } else if (streq(l, "job-ignore-order")) {
1037 b = parse_boolean(v);
1039 log_debug("Failed to parse job ignore_order flag %s", v);
1041 j->ignore_order = j->ignore_order || b;
1043 } else if (streq(l, "job-begin")) {
1044 unsigned long long ull;
1046 if (sscanf(v, "%llu", &ull) != 1)
1047 log_debug("Failed to parse job-begin value %s", v);
1049 j->begin_usec = ull;
1051 } else if (streq(l, "subscribed")) {
1053 if (strv_extend(&j->deserialized_clients, v) < 0)
1059 int job_coldplug(Job *j) {
1064 /* After deserialization is complete and the bus connection
1065 * set up again, let's start watching our subscribers again */
1066 r = bus_track_coldplug(j->manager, &j->clients, &j->deserialized_clients);
1070 if (j->state == JOB_WAITING)
1071 job_add_to_run_queue(j);
1073 if (j->begin_usec == 0 || j->unit->job_timeout == 0)
1076 if (j->timer_event_source)
1077 j->timer_event_source = sd_event_source_unref(j->timer_event_source);
1079 r = sd_event_add_time(
1081 &j->timer_event_source,
1083 j->begin_usec + j->unit->job_timeout, 0,
1084 job_dispatch_timer, j);
1086 log_debug("Failed to restart timeout for job: %s", strerror(-r));
1091 void job_shutdown_magic(Job *j) {
1094 /* The shutdown target gets some special treatment here: we
1095 * tell the kernel to begin with flushing its disk caches, to
1096 * optimize shutdown time a bit. Ideally we wouldn't hardcode
1097 * this magic into PID 1. However all other processes aren't
1098 * options either since they'd exit much sooner than PID 1 and
1099 * asynchronous sync() would cause their exit to be
1102 if (j->type != JOB_START)
1105 if (j->unit->manager->running_as != SYSTEMD_SYSTEM)
1108 if (!unit_has_name(j->unit, SPECIAL_SHUTDOWN_TARGET))
1111 /* In case messages on console has been disabled on boot */
1112 j->unit->manager->no_console_output = false;
1114 if (detect_container(NULL) > 0)
1117 asynchronous_sync();
1120 int job_get_timeout(Job *j, uint64_t *timeout) {
1122 uint64_t x = -1, y = -1;
1127 if (j->timer_event_source) {
1128 r = sd_event_source_get_time(j->timer_event_source, &x);
1134 if (UNIT_VTABLE(u)->get_timeout) {
1135 q = UNIT_VTABLE(u)->get_timeout(u, &y);
1140 if (r == 0 && q == 0)
1143 *timeout = MIN(x, y);
1148 static const char* const job_state_table[_JOB_STATE_MAX] = {
1149 [JOB_WAITING] = "waiting",
1150 [JOB_RUNNING] = "running"
1153 DEFINE_STRING_TABLE_LOOKUP(job_state, JobState);
1155 static const char* const job_type_table[_JOB_TYPE_MAX] = {
1156 [JOB_START] = "start",
1157 [JOB_VERIFY_ACTIVE] = "verify-active",
1158 [JOB_STOP] = "stop",
1159 [JOB_RELOAD] = "reload",
1160 [JOB_RELOAD_OR_START] = "reload-or-start",
1161 [JOB_RESTART] = "restart",
1162 [JOB_TRY_RESTART] = "try-restart",
1166 DEFINE_STRING_TABLE_LOOKUP(job_type, JobType);
1168 static const char* const job_mode_table[_JOB_MODE_MAX] = {
1169 [JOB_FAIL] = "fail",
1170 [JOB_REPLACE] = "replace",
1171 [JOB_REPLACE_IRREVERSIBLY] = "replace-irreversibly",
1172 [JOB_ISOLATE] = "isolate",
1173 [JOB_FLUSH] = "flush",
1174 [JOB_IGNORE_DEPENDENCIES] = "ignore-dependencies",
1175 [JOB_IGNORE_REQUIREMENTS] = "ignore-requirements",
1178 DEFINE_STRING_TABLE_LOOKUP(job_mode, JobMode);
1180 static const char* const job_result_table[_JOB_RESULT_MAX] = {
1181 [JOB_DONE] = "done",
1182 [JOB_CANCELED] = "canceled",
1183 [JOB_TIMEOUT] = "timeout",
1184 [JOB_FAILED] = "failed",
1185 [JOB_DEPENDENCY] = "dependency",
1186 [JOB_SKIPPED] = "skipped",
1187 [JOB_INVALID] = "invalid",
1190 DEFINE_STRING_TABLE_LOOKUP(job_result, JobResult);