1 /*-*- Mode: C; c-basic-offset: 8 -*-*/
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 General Public License as published by
10 the Free Software Foundation; either version 2 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 General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
25 #include <sys/epoll.h>
26 #include <sys/timerfd.h>
35 #include "load-fragment.h"
36 #include "load-dropin.h"
38 #include "unit-name.h"
39 #include "specifier.h"
40 #include "dbus-unit.h"
42 const UnitVTable
* const unit_vtable
[_UNIT_TYPE_MAX
] = {
43 [UNIT_SERVICE
] = &service_vtable
,
44 [UNIT_TIMER
] = &timer_vtable
,
45 [UNIT_SOCKET
] = &socket_vtable
,
46 [UNIT_TARGET
] = &target_vtable
,
47 [UNIT_DEVICE
] = &device_vtable
,
48 [UNIT_MOUNT
] = &mount_vtable
,
49 [UNIT_AUTOMOUNT
] = &automount_vtable
,
50 [UNIT_SNAPSHOT
] = &snapshot_vtable
,
51 [UNIT_SWAP
] = &swap_vtable
54 Unit
*unit_new(Manager
*m
) {
59 if (!(u
= new0(Unit
, 1)))
62 if (!(u
->meta
.names
= set_new(string_hash_func
, string_compare_func
))) {
68 u
->meta
.type
= _UNIT_TYPE_INVALID
;
73 bool unit_has_name(Unit
*u
, const char *name
) {
77 return !!set_get(u
->meta
.names
, (char*) name
);
80 int unit_add_name(Unit
*u
, const char *text
) {
82 char *s
= NULL
, *i
= NULL
;
88 if (unit_name_is_template(text
)) {
89 if (!u
->meta
.instance
)
92 s
= unit_name_replace_instance(text
, u
->meta
.instance
);
99 if (!unit_name_is_valid(s
)) {
104 assert_se((t
= unit_name_to_type(s
)) >= 0);
106 if (u
->meta
.type
!= _UNIT_TYPE_INVALID
&& t
!= u
->meta
.type
) {
111 if ((r
= unit_name_to_instance(s
, &i
)) < 0)
114 if (i
&& unit_vtable
[t
]->no_instances
)
117 if (u
->meta
.type
!= _UNIT_TYPE_INVALID
&& !streq_ptr(u
->meta
.instance
, i
)) {
122 if (unit_vtable
[t
]->no_alias
&&
123 !set_isempty(u
->meta
.names
) &&
124 !set_get(u
->meta
.names
, s
)) {
129 if (hashmap_size(u
->meta
.manager
->units
) >= MANAGER_MAX_NAMES
) {
134 if ((r
= set_put(u
->meta
.names
, s
)) < 0) {
140 if ((r
= hashmap_put(u
->meta
.manager
->units
, s
, u
)) < 0) {
141 set_remove(u
->meta
.names
, s
);
145 if (u
->meta
.type
== _UNIT_TYPE_INVALID
) {
149 u
->meta
.instance
= i
;
151 LIST_PREPEND(Meta
, units_per_type
, u
->meta
.manager
->units_per_type
[t
], &u
->meta
);
153 if (UNIT_VTABLE(u
)->init
)
154 UNIT_VTABLE(u
)->init(u
);
158 unit_add_to_dbus_queue(u
);
168 int unit_choose_id(Unit
*u
, const char *name
) {
174 if (unit_name_is_template(name
)) {
176 if (!u
->meta
.instance
)
179 if (!(t
= unit_name_replace_instance(name
, u
->meta
.instance
)))
185 /* Selects one of the names of this unit as the id */
186 s
= set_get(u
->meta
.names
, (char*) name
);
193 unit_add_to_dbus_queue(u
);
198 int unit_set_description(Unit
*u
, const char *description
) {
203 if (!(s
= strdup(description
)))
206 free(u
->meta
.description
);
207 u
->meta
.description
= s
;
209 unit_add_to_dbus_queue(u
);
213 bool unit_check_gc(Unit
*u
) {
216 if (u
->meta
.load_state
== UNIT_STUB
)
219 if (UNIT_VTABLE(u
)->no_gc
)
225 if (unit_active_state(u
) != UNIT_INACTIVE
)
228 if (UNIT_VTABLE(u
)->check_gc
)
229 if (UNIT_VTABLE(u
)->check_gc(u
))
235 void unit_add_to_load_queue(Unit
*u
) {
237 assert(u
->meta
.type
!= _UNIT_TYPE_INVALID
);
239 if (u
->meta
.load_state
!= UNIT_STUB
|| u
->meta
.in_load_queue
)
242 LIST_PREPEND(Meta
, load_queue
, u
->meta
.manager
->load_queue
, &u
->meta
);
243 u
->meta
.in_load_queue
= true;
246 void unit_add_to_cleanup_queue(Unit
*u
) {
249 if (u
->meta
.in_cleanup_queue
)
252 LIST_PREPEND(Meta
, cleanup_queue
, u
->meta
.manager
->cleanup_queue
, &u
->meta
);
253 u
->meta
.in_cleanup_queue
= true;
256 void unit_add_to_gc_queue(Unit
*u
) {
259 if (u
->meta
.in_gc_queue
|| u
->meta
.in_cleanup_queue
)
262 if (unit_check_gc(u
))
265 LIST_PREPEND(Meta
, gc_queue
, u
->meta
.manager
->gc_queue
, &u
->meta
);
266 u
->meta
.in_gc_queue
= true;
268 u
->meta
.manager
->n_in_gc_queue
++;
270 if (u
->meta
.manager
->gc_queue_timestamp
<= 0)
271 u
->meta
.manager
->gc_queue_timestamp
= now(CLOCK_MONOTONIC
);
274 void unit_add_to_dbus_queue(Unit
*u
) {
276 assert(u
->meta
.type
!= _UNIT_TYPE_INVALID
);
278 if (u
->meta
.load_state
== UNIT_STUB
|| u
->meta
.in_dbus_queue
)
281 if (set_isempty(u
->meta
.manager
->subscribed
)) {
282 u
->meta
.sent_dbus_new_signal
= true;
286 LIST_PREPEND(Meta
, dbus_queue
, u
->meta
.manager
->dbus_unit_queue
, &u
->meta
);
287 u
->meta
.in_dbus_queue
= true;
290 static void bidi_set_free(Unit
*u
, Set
*s
) {
296 /* Frees the set and makes sure we are dropped from the
297 * inverse pointers */
299 SET_FOREACH(other
, s
, i
) {
302 for (d
= 0; d
< _UNIT_DEPENDENCY_MAX
; d
++)
303 set_remove(other
->meta
.dependencies
[d
], u
);
305 unit_add_to_gc_queue(other
);
311 void unit_free(Unit
*u
) {
318 bus_unit_send_removed_signal(u
);
320 /* Detach from next 'bigger' objects */
321 SET_FOREACH(t
, u
->meta
.names
, i
)
322 hashmap_remove_value(u
->meta
.manager
->units
, t
, u
);
324 if (u
->meta
.type
!= _UNIT_TYPE_INVALID
)
325 LIST_REMOVE(Meta
, units_per_type
, u
->meta
.manager
->units_per_type
[u
->meta
.type
], &u
->meta
);
327 if (u
->meta
.in_load_queue
)
328 LIST_REMOVE(Meta
, load_queue
, u
->meta
.manager
->load_queue
, &u
->meta
);
330 if (u
->meta
.in_dbus_queue
)
331 LIST_REMOVE(Meta
, dbus_queue
, u
->meta
.manager
->dbus_unit_queue
, &u
->meta
);
333 if (u
->meta
.in_cleanup_queue
)
334 LIST_REMOVE(Meta
, cleanup_queue
, u
->meta
.manager
->cleanup_queue
, &u
->meta
);
336 if (u
->meta
.in_gc_queue
) {
337 LIST_REMOVE(Meta
, gc_queue
, u
->meta
.manager
->gc_queue
, &u
->meta
);
338 u
->meta
.manager
->n_in_gc_queue
--;
341 /* Free data and next 'smaller' objects */
343 job_free(u
->meta
.job
);
345 if (u
->meta
.load_state
!= UNIT_STUB
)
346 if (UNIT_VTABLE(u
)->done
)
347 UNIT_VTABLE(u
)->done(u
);
349 cgroup_bonding_free_list(u
->meta
.cgroup_bondings
);
351 for (d
= 0; d
< _UNIT_DEPENDENCY_MAX
; d
++)
352 bidi_set_free(u
, u
->meta
.dependencies
[d
]);
354 free(u
->meta
.description
);
355 free(u
->meta
.fragment_path
);
357 while ((t
= set_steal_first(u
->meta
.names
)))
359 set_free(u
->meta
.names
);
361 free(u
->meta
.instance
);
366 UnitActiveState
unit_active_state(Unit
*u
) {
369 if (u
->meta
.load_state
!= UNIT_LOADED
)
370 return UNIT_INACTIVE
;
372 return UNIT_VTABLE(u
)->active_state(u
);
375 const char* unit_sub_state_to_string(Unit
*u
) {
378 return UNIT_VTABLE(u
)->sub_state_to_string(u
);
381 static void complete_move(Set
**s
, Set
**other
) {
389 set_move(*s
, *other
);
396 static void merge_names(Unit
*u
, Unit
*other
) {
403 complete_move(&u
->meta
.names
, &other
->meta
.names
);
405 while ((t
= set_steal_first(other
->meta
.names
)))
408 set_free(other
->meta
.names
);
409 other
->meta
.names
= NULL
;
410 other
->meta
.id
= NULL
;
412 SET_FOREACH(t
, u
->meta
.names
, i
)
413 assert_se(hashmap_replace(u
->meta
.manager
->units
, t
, u
) == 0);
416 static void merge_dependencies(Unit
*u
, Unit
*other
, UnitDependency d
) {
423 assert(d
< _UNIT_DEPENDENCY_MAX
);
425 SET_FOREACH(back
, other
->meta
.dependencies
[d
], i
) {
428 for (k
= 0; k
< _UNIT_DEPENDENCY_MAX
; k
++)
429 if ((r
= set_remove_and_put(back
->meta
.dependencies
[k
], other
, u
)) < 0) {
432 set_remove(back
->meta
.dependencies
[k
], other
);
434 assert(r
== -ENOENT
);
438 complete_move(&u
->meta
.dependencies
[d
], &other
->meta
.dependencies
[d
]);
440 set_free(other
->meta
.dependencies
[d
]);
441 other
->meta
.dependencies
[d
] = NULL
;
444 int unit_merge(Unit
*u
, Unit
*other
) {
449 assert(u
->meta
.manager
== other
->meta
.manager
);
450 assert(u
->meta
.type
!= _UNIT_TYPE_INVALID
);
452 other
= unit_follow_merge(other
);
457 if (u
->meta
.type
!= other
->meta
.type
)
460 if (!streq_ptr(u
->meta
.instance
, other
->meta
.instance
))
463 if (other
->meta
.load_state
!= UNIT_STUB
&&
464 other
->meta
.load_state
!= UNIT_FAILED
)
470 if (unit_active_state(other
) != UNIT_INACTIVE
)
474 merge_names(u
, other
);
476 /* Merge dependencies */
477 for (d
= 0; d
< _UNIT_DEPENDENCY_MAX
; d
++)
478 merge_dependencies(u
, other
, d
);
480 other
->meta
.load_state
= UNIT_MERGED
;
481 other
->meta
.merged_into
= u
;
483 /* If there is still some data attached to the other node, we
484 * don't need it anymore, and can free it. */
485 if (other
->meta
.load_state
!= UNIT_STUB
)
486 if (UNIT_VTABLE(other
)->done
)
487 UNIT_VTABLE(other
)->done(other
);
489 unit_add_to_dbus_queue(u
);
490 unit_add_to_cleanup_queue(other
);
495 int unit_merge_by_name(Unit
*u
, const char *name
) {
503 if (unit_name_is_template(name
)) {
504 if (!u
->meta
.instance
)
507 if (!(s
= unit_name_replace_instance(name
, u
->meta
.instance
)))
513 if (!(other
= manager_get_unit(u
->meta
.manager
, name
)))
514 r
= unit_add_name(u
, name
);
516 r
= unit_merge(u
, other
);
522 Unit
* unit_follow_merge(Unit
*u
) {
525 while (u
->meta
.load_state
== UNIT_MERGED
)
526 assert_se(u
= u
->meta
.merged_into
);
531 int unit_add_exec_dependencies(Unit
*u
, ExecContext
*c
) {
537 if (c
->std_output
!= EXEC_OUTPUT_KMSG
&&
538 c
->std_output
!= EXEC_OUTPUT_SYSLOG
&&
539 c
->std_error
!= EXEC_OUTPUT_KMSG
&&
540 c
->std_error
!= EXEC_OUTPUT_SYSLOG
)
543 /* If syslog or kernel logging is requested, make sure our own
544 * logging daemon is run first. */
546 if ((r
= unit_add_dependency_by_name(u
, UNIT_AFTER
, SPECIAL_LOGGER_SOCKET
, NULL
, true)) < 0)
549 if (u
->meta
.manager
->running_as
!= MANAGER_SESSION
)
550 if ((r
= unit_add_dependency_by_name(u
, UNIT_REQUIRES
, SPECIAL_LOGGER_SOCKET
, NULL
, true)) < 0)
556 const char *unit_description(Unit
*u
) {
559 if (u
->meta
.description
)
560 return u
->meta
.description
;
565 void unit_dump(Unit
*u
, FILE *f
, const char *prefix
) {
573 timestamp1
[FORMAT_TIMESTAMP_MAX
],
574 timestamp2
[FORMAT_TIMESTAMP_MAX
],
575 timestamp3
[FORMAT_TIMESTAMP_MAX
],
576 timestamp4
[FORMAT_TIMESTAMP_MAX
];
579 assert(u
->meta
.type
>= 0);
583 p2
= strappend(prefix
, "\t");
584 prefix2
= p2
? p2
: prefix
;
588 "%s\tDescription: %s\n"
590 "%s\tUnit Load State: %s\n"
591 "%s\tUnit Active State: %s\n"
592 "%s\tInactive Exit Timestamp: %s\n"
593 "%s\tActive Enter Timestamp: %s\n"
594 "%s\tActive Exit Timestamp: %s\n"
595 "%s\tInactive Enter Timestamp: %s\n"
596 "%s\tGC Check Good: %s\n",
598 prefix
, unit_description(u
),
599 prefix
, strna(u
->meta
.instance
),
600 prefix
, unit_load_state_to_string(u
->meta
.load_state
),
601 prefix
, unit_active_state_to_string(unit_active_state(u
)),
602 prefix
, strna(format_timestamp(timestamp1
, sizeof(timestamp1
), u
->meta
.inactive_exit_timestamp
)),
603 prefix
, strna(format_timestamp(timestamp2
, sizeof(timestamp2
), u
->meta
.active_enter_timestamp
)),
604 prefix
, strna(format_timestamp(timestamp3
, sizeof(timestamp3
), u
->meta
.active_exit_timestamp
)),
605 prefix
, strna(format_timestamp(timestamp4
, sizeof(timestamp4
), u
->meta
.inactive_enter_timestamp
)),
606 prefix
, yes_no(unit_check_gc(u
)));
608 SET_FOREACH(t
, u
->meta
.names
, i
)
609 fprintf(f
, "%s\tName: %s\n", prefix
, t
);
611 if (u
->meta
.fragment_path
)
612 fprintf(f
, "%s\tFragment Path: %s\n", prefix
, u
->meta
.fragment_path
);
614 for (d
= 0; d
< _UNIT_DEPENDENCY_MAX
; d
++) {
617 SET_FOREACH(other
, u
->meta
.dependencies
[d
], i
)
618 fprintf(f
, "%s\t%s: %s\n", prefix
, unit_dependency_to_string(d
), other
->meta
.id
);
621 if (u
->meta
.load_state
== UNIT_LOADED
) {
623 "%s\tRecursive Stop: %s\n"
624 "%s\tStop When Unneeded: %s\n",
625 prefix
, yes_no(u
->meta
.recursive_stop
),
626 prefix
, yes_no(u
->meta
.stop_when_unneeded
));
628 LIST_FOREACH(by_unit
, b
, u
->meta
.cgroup_bondings
)
629 fprintf(f
, "%s\tControlGroup: %s:%s\n",
630 prefix
, b
->controller
, b
->path
);
632 if (UNIT_VTABLE(u
)->dump
)
633 UNIT_VTABLE(u
)->dump(u
, f
, prefix2
);
635 } else if (u
->meta
.load_state
== UNIT_MERGED
)
637 "%s\tMerged into: %s\n",
638 prefix
, u
->meta
.merged_into
->meta
.id
);
641 job_dump(u
->meta
.job
, f
, prefix2
);
646 /* Common implementation for multiple backends */
647 int unit_load_fragment_and_dropin(Unit
*u
) {
652 /* Load a .service file */
653 if ((r
= unit_load_fragment(u
)) < 0)
656 if (u
->meta
.load_state
== UNIT_STUB
)
659 /* Load drop-in directory data */
660 if ((r
= unit_load_dropin(unit_follow_merge(u
))) < 0)
666 /* Common implementation for multiple backends */
667 int unit_load_fragment_and_dropin_optional(Unit
*u
) {
672 /* Same as unit_load_fragment_and_dropin(), but whether
673 * something can be loaded or not doesn't matter. */
675 /* Load a .service file */
676 if ((r
= unit_load_fragment(u
)) < 0)
679 if (u
->meta
.load_state
== UNIT_STUB
)
680 u
->meta
.load_state
= UNIT_LOADED
;
682 /* Load drop-in directory data */
683 if ((r
= unit_load_dropin(unit_follow_merge(u
))) < 0)
689 /* Common implementation for multiple backends */
690 int unit_load_nop(Unit
*u
) {
693 if (u
->meta
.load_state
== UNIT_STUB
)
694 u
->meta
.load_state
= UNIT_LOADED
;
699 int unit_load(Unit
*u
) {
704 if (u
->meta
.in_load_queue
) {
705 LIST_REMOVE(Meta
, load_queue
, u
->meta
.manager
->load_queue
, &u
->meta
);
706 u
->meta
.in_load_queue
= false;
709 if (u
->meta
.type
== _UNIT_TYPE_INVALID
)
712 if (u
->meta
.load_state
!= UNIT_STUB
)
715 if (UNIT_VTABLE(u
)->load
)
716 if ((r
= UNIT_VTABLE(u
)->load(u
)) < 0)
719 if (u
->meta
.load_state
== UNIT_STUB
) {
724 assert((u
->meta
.load_state
!= UNIT_MERGED
) == !u
->meta
.merged_into
);
726 unit_add_to_dbus_queue(unit_follow_merge(u
));
727 unit_add_to_gc_queue(u
);
732 u
->meta
.load_state
= UNIT_FAILED
;
733 unit_add_to_dbus_queue(u
);
735 log_debug("Failed to load configuration for %s: %s", u
->meta
.id
, strerror(-r
));
741 * -EBADR: This unit type does not support starting.
742 * -EALREADY: Unit is already started.
743 * -EAGAIN: An operation is already in progress. Retry later.
744 * -ECANCELED: Too many requests for now.
746 int unit_start(Unit
*u
) {
747 UnitActiveState state
;
751 /* If this is already (being) started, then this will
752 * succeed. Note that this will even succeed if this unit is
753 * not startable by the user. This is relied on to detect when
754 * we need to wait for units and when waiting is finished. */
755 state
= unit_active_state(u
);
756 if (UNIT_IS_ACTIVE_OR_RELOADING(state
))
759 /* If it is stopped, but we cannot start it, then fail */
760 if (!UNIT_VTABLE(u
)->start
)
763 /* We don't suppress calls to ->start() here when we are
764 * already starting, to allow this request to be used as a
765 * "hurry up" call, for example when the unit is in some "auto
766 * restart" state where it waits for a holdoff timer to elapse
767 * before it will start again. */
769 unit_add_to_dbus_queue(u
);
770 return UNIT_VTABLE(u
)->start(u
);
773 bool unit_can_start(Unit
*u
) {
776 return !!UNIT_VTABLE(u
)->start
;
780 * -EBADR: This unit type does not support stopping.
781 * -EALREADY: Unit is already stopped.
782 * -EAGAIN: An operation is already in progress. Retry later.
784 int unit_stop(Unit
*u
) {
785 UnitActiveState state
;
789 state
= unit_active_state(u
);
790 if (state
== UNIT_INACTIVE
)
793 if (!UNIT_VTABLE(u
)->stop
)
796 unit_add_to_dbus_queue(u
);
797 return UNIT_VTABLE(u
)->stop(u
);
801 * -EBADR: This unit type does not support reloading.
802 * -ENOEXEC: Unit is not started.
803 * -EAGAIN: An operation is already in progress. Retry later.
805 int unit_reload(Unit
*u
) {
806 UnitActiveState state
;
810 if (!unit_can_reload(u
))
813 state
= unit_active_state(u
);
814 if (unit_active_state(u
) == UNIT_ACTIVE_RELOADING
)
817 if (unit_active_state(u
) != UNIT_ACTIVE
)
820 unit_add_to_dbus_queue(u
);
821 return UNIT_VTABLE(u
)->reload(u
);
824 bool unit_can_reload(Unit
*u
) {
827 if (!UNIT_VTABLE(u
)->reload
)
830 if (!UNIT_VTABLE(u
)->can_reload
)
833 return UNIT_VTABLE(u
)->can_reload(u
);
836 static void unit_check_uneeded(Unit
*u
) {
842 /* If this service shall be shut down when unneeded then do
845 if (!u
->meta
.stop_when_unneeded
)
848 if (!UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(u
)))
851 SET_FOREACH(other
, u
->meta
.dependencies
[UNIT_REQUIRED_BY
], i
)
852 if (!UNIT_IS_INACTIVE_OR_DEACTIVATING(unit_active_state(other
)))
855 SET_FOREACH(other
, u
->meta
.dependencies
[UNIT_REQUIRED_BY_OVERRIDABLE
], i
)
856 if (!UNIT_IS_INACTIVE_OR_DEACTIVATING(unit_active_state(other
)))
859 SET_FOREACH(other
, u
->meta
.dependencies
[UNIT_WANTED_BY
], i
)
860 if (!UNIT_IS_INACTIVE_OR_DEACTIVATING(unit_active_state(other
)))
863 log_debug("Service %s is not needed anymore. Stopping.", u
->meta
.id
);
865 /* Ok, nobody needs us anymore. Sniff. Then let's commit suicide */
866 manager_add_job(u
->meta
.manager
, JOB_STOP
, u
, JOB_FAIL
, true, NULL
);
869 static void retroactively_start_dependencies(Unit
*u
) {
874 assert(UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(u
)));
876 SET_FOREACH(other
, u
->meta
.dependencies
[UNIT_REQUIRES
], i
)
877 if (!UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(other
)))
878 manager_add_job(u
->meta
.manager
, JOB_START
, other
, JOB_REPLACE
, true, NULL
);
880 SET_FOREACH(other
, u
->meta
.dependencies
[UNIT_REQUIRES_OVERRIDABLE
], i
)
881 if (!UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(other
)))
882 manager_add_job(u
->meta
.manager
, JOB_START
, other
, JOB_FAIL
, false, NULL
);
884 SET_FOREACH(other
, u
->meta
.dependencies
[UNIT_REQUISITE
], i
)
885 if (!UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(other
)))
886 manager_add_job(u
->meta
.manager
, JOB_START
, other
, JOB_REPLACE
, true, NULL
);
888 SET_FOREACH(other
, u
->meta
.dependencies
[UNIT_WANTS
], i
)
889 if (!UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(other
)))
890 manager_add_job(u
->meta
.manager
, JOB_START
, other
, JOB_FAIL
, false, NULL
);
892 SET_FOREACH(other
, u
->meta
.dependencies
[UNIT_CONFLICTS
], i
)
893 if (!UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(other
)))
894 manager_add_job(u
->meta
.manager
, JOB_STOP
, other
, JOB_REPLACE
, true, NULL
);
897 static void retroactively_stop_dependencies(Unit
*u
) {
902 assert(UNIT_IS_INACTIVE_OR_DEACTIVATING(unit_active_state(u
)));
904 if (u
->meta
.recursive_stop
) {
905 /* Pull down units need us recursively if enabled */
906 SET_FOREACH(other
, u
->meta
.dependencies
[UNIT_REQUIRED_BY
], i
)
907 if (!UNIT_IS_INACTIVE_OR_DEACTIVATING(unit_active_state(other
)))
908 manager_add_job(u
->meta
.manager
, JOB_STOP
, other
, JOB_REPLACE
, true, NULL
);
911 /* Garbage collect services that might not be needed anymore, if enabled */
912 SET_FOREACH(other
, u
->meta
.dependencies
[UNIT_REQUIRES
], i
)
913 if (!UNIT_IS_INACTIVE_OR_DEACTIVATING(unit_active_state(other
)))
914 unit_check_uneeded(other
);
915 SET_FOREACH(other
, u
->meta
.dependencies
[UNIT_REQUIRES_OVERRIDABLE
], i
)
916 if (!UNIT_IS_INACTIVE_OR_DEACTIVATING(unit_active_state(other
)))
917 unit_check_uneeded(other
);
918 SET_FOREACH(other
, u
->meta
.dependencies
[UNIT_WANTS
], i
)
919 if (!UNIT_IS_INACTIVE_OR_DEACTIVATING(unit_active_state(other
)))
920 unit_check_uneeded(other
);
921 SET_FOREACH(other
, u
->meta
.dependencies
[UNIT_REQUISITE
], i
)
922 if (!UNIT_IS_INACTIVE_OR_DEACTIVATING(unit_active_state(other
)))
923 unit_check_uneeded(other
);
924 SET_FOREACH(other
, u
->meta
.dependencies
[UNIT_REQUISITE_OVERRIDABLE
], i
)
925 if (!UNIT_IS_INACTIVE_OR_DEACTIVATING(unit_active_state(other
)))
926 unit_check_uneeded(other
);
929 void unit_notify(Unit
*u
, UnitActiveState os
, UnitActiveState ns
) {
930 bool unexpected
= false;
934 assert(os
< _UNIT_ACTIVE_STATE_MAX
);
935 assert(ns
< _UNIT_ACTIVE_STATE_MAX
);
937 /* Note that this is called for all low-level state changes,
938 * even if they might map to the same high-level
939 * UnitActiveState! That means that ns == os is OK an expected
940 * behaviour here. For example: if a mount point is remounted
941 * this function will be called too and the utmp code below
944 ts
= now(CLOCK_REALTIME
);
946 if (os
== UNIT_INACTIVE
&& ns
!= UNIT_INACTIVE
)
947 u
->meta
.inactive_exit_timestamp
= ts
;
948 else if (os
!= UNIT_INACTIVE
&& ns
== UNIT_INACTIVE
)
949 u
->meta
.inactive_enter_timestamp
= ts
;
951 if (!UNIT_IS_ACTIVE_OR_RELOADING(os
) && UNIT_IS_ACTIVE_OR_RELOADING(ns
))
952 u
->meta
.active_enter_timestamp
= ts
;
953 else if (UNIT_IS_ACTIVE_OR_RELOADING(os
) && !UNIT_IS_ACTIVE_OR_RELOADING(ns
))
954 u
->meta
.active_exit_timestamp
= ts
;
958 if (u
->meta
.job
->state
== JOB_WAITING
)
960 /* So we reached a different state for this
961 * job. Let's see if we can run it now if it
962 * failed previously due to EAGAIN. */
963 job_add_to_run_queue(u
->meta
.job
);
966 assert(u
->meta
.job
->state
== JOB_RUNNING
);
968 /* Let's check whether this state change
969 * constitutes a finished job, or maybe
970 * cotradicts a running job and hence needs to
971 * invalidate jobs. */
973 switch (u
->meta
.job
->type
) {
976 case JOB_VERIFY_ACTIVE
:
978 if (UNIT_IS_ACTIVE_OR_RELOADING(ns
))
979 job_finish_and_invalidate(u
->meta
.job
, true);
980 else if (ns
!= UNIT_ACTIVATING
) {
982 job_finish_and_invalidate(u
->meta
.job
, false);
988 case JOB_RELOAD_OR_START
:
990 if (ns
== UNIT_ACTIVE
)
991 job_finish_and_invalidate(u
->meta
.job
, true);
992 else if (ns
!= UNIT_ACTIVATING
&& ns
!= UNIT_ACTIVE_RELOADING
) {
994 job_finish_and_invalidate(u
->meta
.job
, false);
1001 case JOB_TRY_RESTART
:
1003 if (ns
== UNIT_INACTIVE
)
1004 job_finish_and_invalidate(u
->meta
.job
, true);
1005 else if (ns
!= UNIT_DEACTIVATING
) {
1007 job_finish_and_invalidate(u
->meta
.job
, false);
1013 assert_not_reached("Job type unknown");
1018 /* If this state change happened without being requested by a
1019 * job, then let's retroactively start or stop dependencies */
1022 if (UNIT_IS_INACTIVE_OR_DEACTIVATING(os
) && UNIT_IS_ACTIVE_OR_ACTIVATING(ns
))
1023 retroactively_start_dependencies(u
);
1024 else if (UNIT_IS_ACTIVE_OR_ACTIVATING(os
) && UNIT_IS_INACTIVE_OR_DEACTIVATING(ns
))
1025 retroactively_stop_dependencies(u
);
1028 /* Some names are special */
1029 if (UNIT_IS_ACTIVE_OR_RELOADING(ns
)) {
1030 if (unit_has_name(u
, SPECIAL_DBUS_SERVICE
)) {
1031 /* The bus just might have become available,
1032 * hence try to connect to it, if we aren't
1034 bus_init_system(u
->meta
.manager
);
1035 bus_init_api(u
->meta
.manager
);
1038 if (unit_has_name(u
, SPECIAL_SYSLOG_SERVICE
))
1039 /* The syslog daemon just might have become
1040 * available, hence try to connect to it, if
1041 * we aren't yet connected. */
1044 if (u
->meta
.type
== UNIT_MOUNT
)
1045 /* Another directory became available, let's
1046 * check if that is enough to write our utmp
1048 manager_write_utmp_reboot(u
->meta
.manager
);
1050 if (u
->meta
.type
== UNIT_TARGET
)
1051 /* A target got activated, maybe this is a runlevel? */
1052 manager_write_utmp_runlevel(u
->meta
.manager
, u
);
1054 } else if (!UNIT_IS_ACTIVE_OR_RELOADING(ns
)) {
1056 if (unit_has_name(u
, SPECIAL_SYSLOG_SERVICE
))
1057 /* The syslog daemon might just have
1058 * terminated, hence try to disconnect from
1062 /* We don't care about D-Bus here, since we'll get an
1063 * asynchronous notification for it anyway. */
1066 /* Maybe we finished startup and are now ready for being
1067 * stopped because unneeded? */
1068 unit_check_uneeded(u
);
1070 unit_add_to_dbus_queue(u
);
1071 unit_add_to_gc_queue(u
);
1074 int unit_watch_fd(Unit
*u
, int fd
, uint32_t events
, Watch
*w
) {
1075 struct epoll_event ev
;
1080 assert(w
->type
== WATCH_INVALID
|| (w
->type
== WATCH_FD
&& w
->fd
== fd
&& w
->data
.unit
== u
));
1086 if (epoll_ctl(u
->meta
.manager
->epoll_fd
,
1087 w
->type
== WATCH_INVALID
? EPOLL_CTL_ADD
: EPOLL_CTL_MOD
,
1099 void unit_unwatch_fd(Unit
*u
, Watch
*w
) {
1103 if (w
->type
== WATCH_INVALID
)
1106 assert(w
->type
== WATCH_FD
);
1107 assert(w
->data
.unit
== u
);
1108 assert_se(epoll_ctl(u
->meta
.manager
->epoll_fd
, EPOLL_CTL_DEL
, w
->fd
, NULL
) >= 0);
1111 w
->type
= WATCH_INVALID
;
1112 w
->data
.unit
= NULL
;
1115 int unit_watch_pid(Unit
*u
, pid_t pid
) {
1119 /* Watch a specific PID. We only support one unit watching
1120 * each PID for now. */
1122 return hashmap_put(u
->meta
.manager
->watch_pids
, UINT32_TO_PTR(pid
), u
);
1125 void unit_unwatch_pid(Unit
*u
, pid_t pid
) {
1129 hashmap_remove_value(u
->meta
.manager
->watch_pids
, UINT32_TO_PTR(pid
), u
);
1132 int unit_watch_timer(Unit
*u
, usec_t delay
, Watch
*w
) {
1133 struct itimerspec its
;
1139 assert(w
->type
== WATCH_INVALID
|| (w
->type
== WATCH_TIMER
&& w
->data
.unit
== u
));
1141 /* This will try to reuse the old timer if there is one */
1143 if (w
->type
== WATCH_TIMER
) {
1148 if ((fd
= timerfd_create(CLOCK_MONOTONIC
, TFD_NONBLOCK
|TFD_CLOEXEC
)) < 0)
1155 /* Set absolute time in the past, but not 0, since we
1156 * don't want to disarm the timer */
1157 its
.it_value
.tv_sec
= 0;
1158 its
.it_value
.tv_nsec
= 1;
1160 flags
= TFD_TIMER_ABSTIME
;
1162 timespec_store(&its
.it_value
, delay
);
1166 /* This will also flush the elapse counter */
1167 if (timerfd_settime(fd
, flags
, &its
, NULL
) < 0)
1170 if (w
->type
== WATCH_INVALID
) {
1171 struct epoll_event ev
;
1175 ev
.events
= EPOLLIN
;
1177 if (epoll_ctl(u
->meta
.manager
->epoll_fd
, EPOLL_CTL_ADD
, fd
, &ev
) < 0)
1182 w
->type
= WATCH_TIMER
;
1189 close_nointr_nofail(fd
);
1194 void unit_unwatch_timer(Unit
*u
, Watch
*w
) {
1198 if (w
->type
== WATCH_INVALID
)
1201 assert(w
->type
== WATCH_TIMER
&& w
->data
.unit
== u
);
1203 assert_se(epoll_ctl(u
->meta
.manager
->epoll_fd
, EPOLL_CTL_DEL
, w
->fd
, NULL
) >= 0);
1204 close_nointr_nofail(w
->fd
);
1207 w
->type
= WATCH_INVALID
;
1208 w
->data
.unit
= NULL
;
1211 bool unit_job_is_applicable(Unit
*u
, JobType j
) {
1213 assert(j
>= 0 && j
< _JOB_TYPE_MAX
);
1217 case JOB_VERIFY_ACTIVE
:
1223 case JOB_TRY_RESTART
:
1224 return unit_can_start(u
);
1227 return unit_can_reload(u
);
1229 case JOB_RELOAD_OR_START
:
1230 return unit_can_reload(u
) && unit_can_start(u
);
1233 assert_not_reached("Invalid job type");
1237 int unit_add_dependency(Unit
*u
, UnitDependency d
, Unit
*other
, bool add_reference
) {
1239 static const UnitDependency inverse_table
[_UNIT_DEPENDENCY_MAX
] = {
1240 [UNIT_REQUIRES
] = UNIT_REQUIRED_BY
,
1241 [UNIT_REQUIRES_OVERRIDABLE
] = UNIT_REQUIRED_BY_OVERRIDABLE
,
1242 [UNIT_WANTS
] = UNIT_WANTED_BY
,
1243 [UNIT_REQUISITE
] = UNIT_REQUIRED_BY
,
1244 [UNIT_REQUISITE_OVERRIDABLE
] = UNIT_REQUIRED_BY_OVERRIDABLE
,
1245 [UNIT_REQUIRED_BY
] = _UNIT_DEPENDENCY_INVALID
,
1246 [UNIT_REQUIRED_BY_OVERRIDABLE
] = _UNIT_DEPENDENCY_INVALID
,
1247 [UNIT_WANTED_BY
] = _UNIT_DEPENDENCY_INVALID
,
1248 [UNIT_CONFLICTS
] = UNIT_CONFLICTS
,
1249 [UNIT_BEFORE
] = UNIT_AFTER
,
1250 [UNIT_AFTER
] = UNIT_BEFORE
,
1251 [UNIT_REFERENCES
] = UNIT_REFERENCED_BY
,
1252 [UNIT_REFERENCED_BY
] = UNIT_REFERENCES
1254 int r
, q
= 0, v
= 0, w
= 0;
1257 assert(d
>= 0 && d
< _UNIT_DEPENDENCY_MAX
);
1258 assert(inverse_table
[d
] != _UNIT_DEPENDENCY_INVALID
);
1261 /* We won't allow dependencies on ourselves. We will not
1262 * consider them an error however. */
1266 if (UNIT_VTABLE(u
)->no_requires
&&
1267 (d
== UNIT_REQUIRES
||
1268 d
== UNIT_REQUIRES_OVERRIDABLE
||
1269 d
== UNIT_REQUISITE
||
1270 d
== UNIT_REQUISITE_OVERRIDABLE
)) {
1274 if ((r
= set_ensure_allocated(&u
->meta
.dependencies
[d
], trivial_hash_func
, trivial_compare_func
)) < 0 ||
1275 (r
= set_ensure_allocated(&other
->meta
.dependencies
[inverse_table
[d
]], trivial_hash_func
, trivial_compare_func
)) < 0)
1279 if ((r
= set_ensure_allocated(&u
->meta
.dependencies
[UNIT_REFERENCES
], trivial_hash_func
, trivial_compare_func
)) < 0 ||
1280 (r
= set_ensure_allocated(&other
->meta
.dependencies
[UNIT_REFERENCED_BY
], trivial_hash_func
, trivial_compare_func
)) < 0)
1283 if ((q
= set_put(u
->meta
.dependencies
[d
], other
)) < 0)
1286 if ((v
= set_put(other
->meta
.dependencies
[inverse_table
[d
]], u
)) < 0) {
1291 if (add_reference
) {
1292 if ((w
= set_put(u
->meta
.dependencies
[UNIT_REFERENCES
], other
)) < 0) {
1297 if ((r
= set_put(other
->meta
.dependencies
[UNIT_REFERENCED_BY
], u
)) < 0)
1301 unit_add_to_dbus_queue(u
);
1306 set_remove(u
->meta
.dependencies
[d
], other
);
1309 set_remove(other
->meta
.dependencies
[inverse_table
[d
]], u
);
1312 set_remove(u
->meta
.dependencies
[UNIT_REFERENCES
], other
);
1317 static const char *resolve_template(Unit
*u
, const char *name
, const char*path
, char **p
) {
1321 assert(name
|| path
);
1324 name
= file_name_from_path(path
);
1326 if (!unit_name_is_template(name
)) {
1331 if (u
->meta
.instance
)
1332 s
= unit_name_replace_instance(name
, u
->meta
.instance
);
1336 if (!(i
= unit_name_to_prefix(u
->meta
.id
)))
1339 s
= unit_name_replace_instance(name
, i
);
1350 int unit_add_dependency_by_name(Unit
*u
, UnitDependency d
, const char *name
, const char *path
, bool add_reference
) {
1356 assert(name
|| path
);
1358 if (!(name
= resolve_template(u
, name
, path
, &s
)))
1361 if ((r
= manager_load_unit(u
->meta
.manager
, name
, path
, &other
)) < 0)
1364 r
= unit_add_dependency(u
, d
, other
, add_reference
);
1371 int unit_add_dependency_by_name_inverse(Unit
*u
, UnitDependency d
, const char *name
, const char *path
, bool add_reference
) {
1377 assert(name
|| path
);
1379 if (!(name
= resolve_template(u
, name
, path
, &s
)))
1382 if ((r
= manager_load_unit(u
->meta
.manager
, name
, path
, &other
)) < 0)
1385 r
= unit_add_dependency(other
, d
, u
, add_reference
);
1392 int set_unit_path(const char *p
) {
1396 /* This is mostly for debug purposes */
1398 if (path_is_absolute(p
)) {
1399 if (!(c
= strdup(p
)))
1402 if (!(cwd
= get_current_dir_name()))
1405 r
= asprintf(&c
, "%s/%s", cwd
, p
);
1412 if (setenv("SYSTEMD_UNIT_PATH", c
, 0) < 0) {
1421 char *unit_dbus_path(Unit
*u
) {
1426 if (!(e
= bus_path_escape(u
->meta
.id
)))
1429 if (asprintf(&p
, "/org/freedesktop/systemd1/unit/%s", e
) < 0) {
1438 int unit_add_cgroup(Unit
*u
, CGroupBonding
*b
) {
1446 /* Ensure this hasn't been added yet */
1449 l
= hashmap_get(u
->meta
.manager
->cgroup_bondings
, b
->path
);
1450 LIST_PREPEND(CGroupBonding
, by_path
, l
, b
);
1452 if ((r
= hashmap_replace(u
->meta
.manager
->cgroup_bondings
, b
->path
, l
)) < 0) {
1453 LIST_REMOVE(CGroupBonding
, by_path
, l
, b
);
1457 LIST_PREPEND(CGroupBonding
, by_unit
, u
->meta
.cgroup_bondings
, b
);
1463 static char *default_cgroup_path(Unit
*u
) {
1469 if (u
->meta
.instance
) {
1472 if (!(t
= unit_name_template(u
->meta
.id
)))
1475 r
= asprintf(&p
, "%s/%s/%s", u
->meta
.manager
->cgroup_hierarchy
, t
, u
->meta
.instance
);
1478 r
= asprintf(&p
, "%s/%s", u
->meta
.manager
->cgroup_hierarchy
, u
->meta
.id
);
1480 return r
< 0 ? NULL
: p
;
1483 int unit_add_cgroup_from_text(Unit
*u
, const char *name
) {
1485 char *controller
= NULL
, *path
= NULL
;
1486 CGroupBonding
*b
= NULL
;
1492 /* Detect controller name */
1493 n
= strcspn(name
, ":");
1496 (name
[n
] == ':' && name
[n
+1] == 0)) {
1498 /* Only controller name, no path? */
1500 if (!(path
= default_cgroup_path(u
)))
1506 /* Controller name, and path. */
1509 if (!path_is_absolute(p
))
1512 if (!(path
= strdup(p
)))
1517 controller
= strndup(name
, n
);
1519 controller
= strdup(u
->meta
.manager
->cgroup_controller
);
1526 if (cgroup_bonding_find_list(u
->meta
.cgroup_bondings
, controller
)) {
1531 if (!(b
= new0(CGroupBonding
, 1))) {
1536 b
->controller
= controller
;
1539 b
->clean_up
= false;
1541 if ((r
= unit_add_cgroup(u
, b
)) < 0)
1554 int unit_add_default_cgroup(Unit
*u
) {
1560 /* Adds in the default cgroup data, if it wasn't specified yet */
1562 if (unit_get_default_cgroup(u
))
1565 if (!(b
= new0(CGroupBonding
, 1)))
1568 if (!(b
->controller
= strdup(u
->meta
.manager
->cgroup_controller
)))
1571 if (!(b
->path
= default_cgroup_path(u
)))
1577 if ((r
= unit_add_cgroup(u
, b
)) < 0)
1584 free(b
->controller
);
1590 CGroupBonding
* unit_get_default_cgroup(Unit
*u
) {
1593 return cgroup_bonding_find_list(u
->meta
.cgroup_bondings
, u
->meta
.manager
->cgroup_controller
);
1596 int unit_load_related_unit(Unit
*u
, const char *type
, Unit
**_found
) {
1604 if (!(t
= unit_name_change_suffix(u
->meta
.id
, type
)))
1607 assert(!unit_has_name(u
, t
));
1609 r
= manager_load_unit(u
->meta
.manager
, t
, NULL
, _found
);
1612 assert(r
< 0 || *_found
!= u
);
1617 int unit_get_related_unit(Unit
*u
, const char *type
, Unit
**_found
) {
1625 if (!(t
= unit_name_change_suffix(u
->meta
.id
, type
)))
1628 assert(!unit_has_name(u
, t
));
1630 found
= manager_get_unit(u
->meta
.manager
, t
);
1640 static char *specifier_prefix_and_instance(char specifier
, void *data
, void *userdata
) {
1644 return unit_name_to_prefix_and_instance(u
->meta
.id
);
1647 static char *specifier_prefix(char specifier
, void *data
, void *userdata
) {
1651 return unit_name_to_prefix(u
->meta
.id
);
1654 static char *specifier_prefix_unescaped(char specifier
, void *data
, void *userdata
) {
1660 if (!(p
= unit_name_to_prefix(u
->meta
.id
)))
1663 r
= unit_name_unescape(p
);
1669 static char *specifier_instance_unescaped(char specifier
, void *data
, void *userdata
) {
1673 if (u
->meta
.instance
)
1674 return unit_name_unescape(u
->meta
.instance
);
1679 char *unit_name_printf(Unit
*u
, const char* format
) {
1682 * This will use the passed string as format string and
1683 * replace the following specifiers:
1685 * %n: the full id of the unit (foo@bar.waldo)
1686 * %N: the id of the unit without the suffix (foo@bar)
1687 * %p: the prefix (foo)
1688 * %i: the instance (bar)
1691 const Specifier table
[] = {
1692 { 'n', specifier_string
, u
->meta
.id
},
1693 { 'N', specifier_prefix_and_instance
, NULL
},
1694 { 'p', specifier_prefix
, NULL
},
1695 { 'i', specifier_string
, u
->meta
.instance
},
1702 return specifier_printf(format
, table
, u
);
1705 char *unit_full_printf(Unit
*u
, const char *format
) {
1707 /* This is similar to unit_name_printf() but also supports
1710 const Specifier table
[] = {
1711 { 'n', specifier_string
, u
->meta
.id
},
1712 { 'N', specifier_prefix_and_instance
, NULL
},
1713 { 'p', specifier_prefix
, NULL
},
1714 { 'P', specifier_prefix_unescaped
, NULL
},
1715 { 'i', specifier_string
, u
->meta
.instance
},
1716 { 'I', specifier_instance_unescaped
, NULL
},
1723 return specifier_printf(format
, table
, u
);
1726 char **unit_full_printf_strv(Unit
*u
, char **l
) {
1730 /* Applies unit_full_printf to every entry in l */
1735 if (!(r
= new(char*, n
+1)))
1738 for (i
= l
, j
= r
; *i
; i
++, j
++)
1739 if (!(*j
= unit_full_printf(u
, *i
)))
1755 int unit_watch_bus_name(Unit
*u
, const char *name
) {
1759 /* Watch a specific name on the bus. We only support one unit
1760 * watching each name for now. */
1762 return hashmap_put(u
->meta
.manager
->watch_bus
, name
, u
);
1765 void unit_unwatch_bus_name(Unit
*u
, const char *name
) {
1769 hashmap_remove_value(u
->meta
.manager
->watch_bus
, name
, u
);
1772 bool unit_can_serialize(Unit
*u
) {
1775 return UNIT_VTABLE(u
)->serialize
&& UNIT_VTABLE(u
)->deserialize_item
;
1778 int unit_serialize(Unit
*u
, FILE *f
, FDSet
*fds
) {
1785 if (!unit_can_serialize(u
))
1788 if ((r
= UNIT_VTABLE(u
)->serialize(u
, f
, fds
)) < 0)
1796 void unit_serialize_item_format(Unit
*u
, FILE *f
, const char *key
, const char *format
, ...) {
1807 va_start(ap
, format
);
1808 vfprintf(f
, format
, ap
);
1814 void unit_serialize_item(Unit
*u
, FILE *f
, const char *key
, const char *value
) {
1820 fprintf(f
, "%s=%s\n", key
, value
);
1823 int unit_deserialize(Unit
*u
, FILE *f
, FDSet
*fds
) {
1830 if (!unit_can_serialize(u
))
1834 char line
[1024], *l
, *v
;
1837 if (!fgets(line
, sizeof(line
), f
)) {
1849 k
= strcspn(l
, "=");
1857 if ((r
= UNIT_VTABLE(u
)->deserialize_item(u
, l
, v
, fds
)) < 0)
1862 int unit_add_node_link(Unit
*u
, const char *what
, bool wants
) {
1872 /* Adds in links to the device node that this unit is based on */
1874 if (!is_device_path(what
))
1877 if (!(e
= unit_name_build_escape(what
+1, NULL
, ".device")))
1880 r
= manager_load_unit(u
->meta
.manager
, e
, NULL
, &device
);
1886 if ((r
= unit_add_dependency(u
, UNIT_AFTER
, device
, true)) < 0)
1889 if ((r
= unit_add_dependency(u
, UNIT_REQUIRES
, device
, true)) < 0)
1893 if ((r
= unit_add_dependency(device
, UNIT_WANTS
, u
, false)) < 0)
1899 static const char* const unit_type_table
[_UNIT_TYPE_MAX
] = {
1900 [UNIT_SERVICE
] = "service",
1901 [UNIT_TIMER
] = "timer",
1902 [UNIT_SOCKET
] = "socket",
1903 [UNIT_TARGET
] = "target",
1904 [UNIT_DEVICE
] = "device",
1905 [UNIT_MOUNT
] = "mount",
1906 [UNIT_AUTOMOUNT
] = "automount",
1907 [UNIT_SNAPSHOT
] = "snapshot",
1908 [UNIT_SWAP
] = "swap"
1911 DEFINE_STRING_TABLE_LOOKUP(unit_type
, UnitType
);
1913 static const char* const unit_load_state_table
[_UNIT_LOAD_STATE_MAX
] = {
1914 [UNIT_STUB
] = "stub",
1915 [UNIT_LOADED
] = "loaded",
1916 [UNIT_FAILED
] = "failed",
1917 [UNIT_MERGED
] = "merged"
1920 DEFINE_STRING_TABLE_LOOKUP(unit_load_state
, UnitLoadState
);
1922 static const char* const unit_active_state_table
[_UNIT_ACTIVE_STATE_MAX
] = {
1923 [UNIT_ACTIVE
] = "active",
1924 [UNIT_INACTIVE
] = "inactive",
1925 [UNIT_ACTIVATING
] = "activating",
1926 [UNIT_DEACTIVATING
] = "deactivating"
1929 DEFINE_STRING_TABLE_LOOKUP(unit_active_state
, UnitActiveState
);
1931 static const char* const unit_dependency_table
[_UNIT_DEPENDENCY_MAX
] = {
1932 [UNIT_REQUIRES
] = "Requires",
1933 [UNIT_REQUIRES_OVERRIDABLE
] = "RequiresOverridable",
1934 [UNIT_WANTS
] = "Wants",
1935 [UNIT_REQUISITE
] = "Requisite",
1936 [UNIT_REQUISITE_OVERRIDABLE
] = "RequisiteOverridable",
1937 [UNIT_REQUIRED_BY
] = "RequiredBy",
1938 [UNIT_REQUIRED_BY_OVERRIDABLE
] = "RequiredByOverridable",
1939 [UNIT_WANTED_BY
] = "WantedBy",
1940 [UNIT_CONFLICTS
] = "Conflicts",
1941 [UNIT_BEFORE
] = "Before",
1942 [UNIT_AFTER
] = "After",
1943 [UNIT_REFERENCES
] = "References",
1944 [UNIT_REFERENCED_BY
] = "ReferencedBy"
1947 DEFINE_STRING_TABLE_LOOKUP(unit_dependency
, UnitDependency
);
1949 static const char* const kill_mode_table
[_KILL_MODE_MAX
] = {
1950 [KILL_CONTROL_GROUP
] = "control-group",
1951 [KILL_PROCESS_GROUP
] = "process-group",
1952 [KILL_PROCESS
] = "process",
1953 [KILL_NONE
] = "none"
1956 DEFINE_STRING_TABLE_LOOKUP(kill_mode
, KillMode
);