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03467c88 | 1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
87f0e418 | 2 | |
c2f1db8f | 3 | #pragma once |
87f0e418 | 4 | |
a7334b09 LP |
5 | /*** |
6 | This file is part of systemd. | |
7 | ||
8 | Copyright 2010 Lennart Poettering | |
9 | ||
10 | systemd is free software; you can redistribute it and/or modify it | |
5430f7f2 LP |
11 | under the terms of the GNU Lesser General Public License as published by |
12 | the Free Software Foundation; either version 2.1 of the License, or | |
a7334b09 LP |
13 | (at your option) any later version. |
14 | ||
15 | systemd is distributed in the hope that it will be useful, but | |
16 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
5430f7f2 | 18 | Lesser General Public License for more details. |
a7334b09 | 19 | |
5430f7f2 | 20 | You should have received a copy of the GNU Lesser General Public License |
a7334b09 LP |
21 | along with systemd; If not, see <http://www.gnu.org/licenses/>. |
22 | ***/ | |
23 | ||
87f0e418 LP |
24 | #include <stdbool.h> |
25 | #include <stdlib.h> | |
bbc9006e | 26 | #include <unistd.h> |
87f0e418 | 27 | |
ac155bb8 | 28 | typedef struct Unit Unit; |
87f0e418 | 29 | typedef struct UnitVTable UnitVTable; |
87f0e418 LP |
30 | typedef enum UnitActiveState UnitActiveState; |
31 | typedef enum UnitDependency UnitDependency; | |
57020a3a | 32 | typedef struct UnitRef UnitRef; |
c6918296 | 33 | typedef struct UnitStatusMessageFormats UnitStatusMessageFormats; |
87f0e418 | 34 | |
87f0e418 LP |
35 | #include "set.h" |
36 | #include "util.h" | |
37 | #include "list.h" | |
38 | #include "socket-util.h" | |
39 | #include "execute.h" | |
52661efd | 40 | #include "condition.h" |
a4375746 | 41 | #include "install.h" |
0a9f8ed0 | 42 | #include "unit-name.h" |
87f0e418 | 43 | |
87f0e418 LP |
44 | enum UnitActiveState { |
45 | UNIT_ACTIVE, | |
032ff4af | 46 | UNIT_RELOADING, |
87f0e418 | 47 | UNIT_INACTIVE, |
fdf20a31 | 48 | UNIT_FAILED, |
87f0e418 LP |
49 | UNIT_ACTIVATING, |
50 | UNIT_DEACTIVATING, | |
94f04347 LP |
51 | _UNIT_ACTIVE_STATE_MAX, |
52 | _UNIT_ACTIVE_STATE_INVALID = -1 | |
87f0e418 LP |
53 | }; |
54 | ||
55 | static inline bool UNIT_IS_ACTIVE_OR_RELOADING(UnitActiveState t) { | |
032ff4af | 56 | return t == UNIT_ACTIVE || t == UNIT_RELOADING; |
87f0e418 LP |
57 | } |
58 | ||
59 | static inline bool UNIT_IS_ACTIVE_OR_ACTIVATING(UnitActiveState t) { | |
032ff4af | 60 | return t == UNIT_ACTIVE || t == UNIT_ACTIVATING || t == UNIT_RELOADING; |
87f0e418 LP |
61 | } |
62 | ||
63 | static inline bool UNIT_IS_INACTIVE_OR_DEACTIVATING(UnitActiveState t) { | |
fdf20a31 | 64 | return t == UNIT_INACTIVE || t == UNIT_FAILED || t == UNIT_DEACTIVATING; |
6124958c LP |
65 | } |
66 | ||
fdf20a31 MM |
67 | static inline bool UNIT_IS_INACTIVE_OR_FAILED(UnitActiveState t) { |
68 | return t == UNIT_INACTIVE || t == UNIT_FAILED; | |
87f0e418 LP |
69 | } |
70 | ||
71 | enum UnitDependency { | |
72 | /* Positive dependencies */ | |
73 | UNIT_REQUIRES, | |
9e2f7c11 | 74 | UNIT_REQUIRES_OVERRIDABLE, |
87f0e418 | 75 | UNIT_REQUISITE, |
9e2f7c11 LP |
76 | UNIT_REQUISITE_OVERRIDABLE, |
77 | UNIT_WANTS, | |
7f2cddae | 78 | UNIT_BINDS_TO, |
85e9a101 | 79 | UNIT_PART_OF, |
87f0e418 LP |
80 | |
81 | /* Inverse of the above */ | |
9e2f7c11 | 82 | UNIT_REQUIRED_BY, /* inverse of 'requires' and 'requisite' is 'required_by' */ |
f14e15f8 | 83 | UNIT_REQUIRED_BY_OVERRIDABLE, /* inverse of 'requires_overridable' and 'requisite_overridable' is 'soft_required_by' */ |
9e2f7c11 | 84 | UNIT_WANTED_BY, /* inverse of 'wants' */ |
7f2cddae | 85 | UNIT_BOUND_BY, /* inverse of 'binds_to' */ |
85e9a101 | 86 | UNIT_CONSISTS_OF, /* inverse of 'part_of' */ |
87f0e418 LP |
87 | |
88 | /* Negative dependencies */ | |
69dd2852 LP |
89 | UNIT_CONFLICTS, /* inverse of 'conflicts' is 'conflicted_by' */ |
90 | UNIT_CONFLICTED_BY, | |
87f0e418 LP |
91 | |
92 | /* Order */ | |
701cc384 | 93 | UNIT_BEFORE, /* inverse of 'before' is 'after' and vice versa */ |
87f0e418 LP |
94 | UNIT_AFTER, |
95 | ||
5de9682c LP |
96 | /* On Failure */ |
97 | UNIT_ON_FAILURE, | |
98 | ||
57020a3a LP |
99 | /* Triggers (i.e. a socket triggers a service) */ |
100 | UNIT_TRIGGERS, | |
101 | UNIT_TRIGGERED_BY, | |
102 | ||
4dcc1cb4 | 103 | /* Propagate reloads */ |
7f2cddae LP |
104 | UNIT_PROPAGATES_RELOAD_TO, |
105 | UNIT_RELOAD_PROPAGATED_FROM, | |
4dcc1cb4 | 106 | |
701cc384 LP |
107 | /* Reference information for GC logic */ |
108 | UNIT_REFERENCES, /* Inverse of 'references' is 'referenced_by' */ | |
109 | UNIT_REFERENCED_BY, | |
110 | ||
87f0e418 LP |
111 | _UNIT_DEPENDENCY_MAX, |
112 | _UNIT_DEPENDENCY_INVALID = -1 | |
113 | }; | |
114 | ||
ef734fd6 LP |
115 | #include "manager.h" |
116 | #include "job.h" | |
8e274523 | 117 | #include "cgroup.h" |
ab1f0633 | 118 | #include "cgroup-attr.h" |
ef734fd6 | 119 | |
ac155bb8 | 120 | struct Unit { |
87f0e418 | 121 | Manager *manager; |
23a177ef | 122 | |
87f0e418 LP |
123 | UnitType type; |
124 | UnitLoadState load_state; | |
23a177ef | 125 | Unit *merged_into; |
87f0e418 LP |
126 | |
127 | char *id; /* One name is special because we use it for identification. Points to an entry in the names set */ | |
9e2f7c11 | 128 | char *instance; |
87f0e418 LP |
129 | |
130 | Set *names; | |
131 | Set *dependencies[_UNIT_DEPENDENCY_MAX]; | |
132 | ||
7c8fa05c LP |
133 | char **requires_mounts_for; |
134 | ||
87f0e418 | 135 | char *description; |
49dbfa7b | 136 | char **documentation; |
faf919f1 | 137 | |
6be1e7d5 | 138 | char *fragment_path; /* if loaded from a config file this is the primary path to it */ |
1b64d026 | 139 | char *source_path; /* if converted, the source file */ |
45fb0699 | 140 | usec_t fragment_mtime; |
1b64d026 | 141 | usec_t source_mtime; |
87f0e418 | 142 | |
e0209d83 | 143 | /* If there is something to do with this unit, then this is the installed job for it */ |
87f0e418 LP |
144 | Job *job; |
145 | ||
e0209d83 MS |
146 | /* JOB_NOP jobs are special and can be installed without disturbing the real job. */ |
147 | Job *nop_job; | |
148 | ||
faf919f1 LP |
149 | usec_t job_timeout; |
150 | ||
57020a3a LP |
151 | /* References to this */ |
152 | LIST_HEAD(UnitRef, refs); | |
153 | ||
52661efd LP |
154 | /* Conditions to check */ |
155 | LIST_HEAD(Condition, conditions); | |
156 | ||
90bbc946 LP |
157 | dual_timestamp condition_timestamp; |
158 | ||
63983207 LP |
159 | dual_timestamp inactive_exit_timestamp; |
160 | dual_timestamp active_enter_timestamp; | |
161 | dual_timestamp active_exit_timestamp; | |
162 | dual_timestamp inactive_enter_timestamp; | |
87f0e418 | 163 | |
8e274523 LP |
164 | /* Counterparts in the cgroup filesystem */ |
165 | CGroupBonding *cgroup_bondings; | |
ab1f0633 | 166 | CGroupAttribute *cgroup_attributes; |
8e274523 | 167 | |
ef734fd6 | 168 | /* Per type list */ |
ac155bb8 | 169 | LIST_FIELDS(Unit, units_by_type); |
c1e1601e | 170 | |
7c8fa05c LP |
171 | /* All units which have requires_mounts_for set */ |
172 | LIST_FIELDS(Unit, has_requires_mounts_for); | |
173 | ||
701cc384 | 174 | /* Load queue */ |
ac155bb8 | 175 | LIST_FIELDS(Unit, load_queue); |
701cc384 | 176 | |
c1e1601e | 177 | /* D-Bus queue */ |
ac155bb8 | 178 | LIST_FIELDS(Unit, dbus_queue); |
23a177ef LP |
179 | |
180 | /* Cleanup queue */ | |
ac155bb8 | 181 | LIST_FIELDS(Unit, cleanup_queue); |
9d58f1db | 182 | |
701cc384 | 183 | /* GC queue */ |
ac155bb8 | 184 | LIST_FIELDS(Unit, gc_queue); |
701cc384 LP |
185 | |
186 | /* Used during GC sweeps */ | |
eced69b3 | 187 | unsigned gc_marker; |
701cc384 | 188 | |
7fab9d01 | 189 | /* When deserializing, temporarily store the job type for this |
39a18c60 MS |
190 | * unit here, if there was a job scheduled. |
191 | * Only for deserializing from a legacy version. New style uses full | |
192 | * serialized jobs. */ | |
7fab9d01 LP |
193 | int deserialized_job; /* This is actually of type JobType */ |
194 | ||
8821a00f LP |
195 | /* Error code when we didn't manage to load the unit (negative) */ |
196 | int load_error; | |
197 | ||
a4375746 LP |
198 | /* Cached unit file state */ |
199 | UnitFileState unit_file_state; | |
200 | ||
9d58f1db LP |
201 | /* Garbage collect us we nobody wants or requires us anymore */ |
202 | bool stop_when_unneeded; | |
203 | ||
35b8ca3a | 204 | /* Create default dependencies */ |
a40eb732 LP |
205 | bool default_dependencies; |
206 | ||
b5e9dba8 LP |
207 | /* Refuse manual starting, allow starting only indirectly via dependency. */ |
208 | bool refuse_manual_start; | |
209 | ||
210 | /* Don't allow the user to stop this unit manually, allow stopping only indirectly via dependency. */ | |
211 | bool refuse_manual_stop; | |
212 | ||
2528a7a6 LP |
213 | /* Allow isolation requests */ |
214 | bool allow_isolate; | |
215 | ||
222ae6a8 LP |
216 | /* Isolate OnFailure unit */ |
217 | bool on_failure_isolate; | |
218 | ||
c8f4d764 LP |
219 | /* Ignore this unit when isolating */ |
220 | bool ignore_on_isolate; | |
221 | ||
7a6000a6 LP |
222 | /* Ignore this unit when snapshotting */ |
223 | bool ignore_on_snapshot; | |
224 | ||
49f43d5f | 225 | /* Did the last condition check succeed? */ |
90bbc946 LP |
226 | bool condition_result; |
227 | ||
9d58f1db LP |
228 | bool in_load_queue:1; |
229 | bool in_dbus_queue:1; | |
230 | bool in_cleanup_queue:1; | |
701cc384 LP |
231 | bool in_gc_queue:1; |
232 | ||
9d58f1db | 233 | bool sent_dbus_new_signal:1; |
6c073082 LP |
234 | |
235 | bool no_gc:1; | |
cd6d0a45 LP |
236 | |
237 | bool in_audit:1; | |
87f0e418 LP |
238 | }; |
239 | ||
57020a3a LP |
240 | struct UnitRef { |
241 | /* Keeps tracks of references to a unit. This is useful so | |
242 | * that we can merge two units if necessary and correct all | |
243 | * references to them */ | |
244 | ||
245 | Unit* unit; | |
246 | LIST_FIELDS(UnitRef, refs); | |
247 | }; | |
248 | ||
c6918296 MS |
249 | struct UnitStatusMessageFormats { |
250 | const char *starting_stopping[2]; | |
251 | const char *finished_start_job[_JOB_RESULT_MAX]; | |
252 | const char *finished_stop_job[_JOB_RESULT_MAX]; | |
253 | }; | |
254 | ||
87f0e418 LP |
255 | #include "service.h" |
256 | #include "timer.h" | |
257 | #include "socket.h" | |
258 | #include "target.h" | |
259 | #include "device.h" | |
260 | #include "mount.h" | |
261 | #include "automount.h" | |
262 | #include "snapshot.h" | |
07b0b134 | 263 | #include "swap.h" |
01f78473 | 264 | #include "path.h" |
87f0e418 | 265 | |
87f0e418 | 266 | struct UnitVTable { |
7d17cfbc MS |
267 | /* How much memory does an object of this unit type need */ |
268 | size_t object_size; | |
269 | ||
3ef63c31 LP |
270 | /* If greater than 0, the offset into the object where |
271 | * ExecContext is found, if the unit type has that */ | |
272 | size_t exec_context_offset; | |
273 | ||
71645aca LP |
274 | /* The name of the section with the exec settings of ExecContext */ |
275 | const char *exec_section; | |
276 | ||
f975e971 LP |
277 | /* Config file sections this unit type understands, separated |
278 | * by NUL chars */ | |
279 | const char *sections; | |
280 | ||
e537352b | 281 | /* This should reset all type-specific variables. This should |
a16e1123 LP |
282 | * not allocate memory, and is called with zero-initialized |
283 | * data. It should hence only initialize variables that need | |
284 | * to be set != 0. */ | |
e537352b LP |
285 | void (*init)(Unit *u); |
286 | ||
a16e1123 LP |
287 | /* This should free all type-specific variables. It should be |
288 | * idempotent. */ | |
289 | void (*done)(Unit *u); | |
290 | ||
e537352b LP |
291 | /* Actually load data from disk. This may fail, and should set |
292 | * load_state to UNIT_LOADED, UNIT_MERGED or leave it at | |
293 | * UNIT_STUB if no configuration could be found. */ | |
294 | int (*load)(Unit *u); | |
295 | ||
c5315881 | 296 | /* If a lot of units got created via enumerate(), this is |
e537352b | 297 | * where to actually set the state and call unit_notify(). */ |
f50e0a01 | 298 | int (*coldplug)(Unit *u); |
87f0e418 LP |
299 | |
300 | void (*dump)(Unit *u, FILE *f, const char *prefix); | |
301 | ||
302 | int (*start)(Unit *u); | |
303 | int (*stop)(Unit *u); | |
304 | int (*reload)(Unit *u); | |
305 | ||
c74f17d9 | 306 | int (*kill)(Unit *u, KillWho w, int signo, DBusError *error); |
8a0867d6 | 307 | |
87f0e418 LP |
308 | bool (*can_reload)(Unit *u); |
309 | ||
a16e1123 LP |
310 | /* Write all data that cannot be restored from other sources |
311 | * away using unit_serialize_item() */ | |
312 | int (*serialize)(Unit *u, FILE *f, FDSet *fds); | |
313 | ||
314 | /* Restore one item from the serialization */ | |
315 | int (*deserialize_item)(Unit *u, const char *key, const char *data, FDSet *fds); | |
316 | ||
01e10de3 LP |
317 | /* Try to match up fds with what we need for this unit */ |
318 | int (*distribute_fds)(Unit *u, FDSet *fds); | |
319 | ||
87f0e418 LP |
320 | /* Boils down the more complex internal state of this unit to |
321 | * a simpler one that the engine can understand */ | |
322 | UnitActiveState (*active_state)(Unit *u); | |
323 | ||
10a94420 LP |
324 | /* Returns the substate specific to this unit type as |
325 | * string. This is purely information so that we can give the | |
35b8ca3a | 326 | * user a more fine grained explanation in which actual state a |
10a94420 LP |
327 | * unit is in. */ |
328 | const char* (*sub_state_to_string)(Unit *u); | |
329 | ||
701cc384 LP |
330 | /* Return true when there is reason to keep this entry around |
331 | * even nothing references it and it isn't active in any | |
332 | * way */ | |
333 | bool (*check_gc)(Unit *u); | |
334 | ||
335 | /* Return true when this unit is suitable for snapshotting */ | |
336 | bool (*check_snapshot)(Unit *u); | |
337 | ||
acbb0225 | 338 | void (*fd_event)(Unit *u, int fd, uint32_t events, Watch *w); |
87f0e418 | 339 | void (*sigchld_event)(Unit *u, pid_t pid, int code, int status); |
acbb0225 | 340 | void (*timer_event)(Unit *u, uint64_t n_elapsed, Watch *w); |
7824bbeb | 341 | |
fdf20a31 MM |
342 | /* Reset failed state if we are in failed state */ |
343 | void (*reset_failed)(Unit *u); | |
5632e374 | 344 | |
05e343b7 LP |
345 | /* Called whenever any of the cgroups this unit watches for |
346 | * ran empty */ | |
8e274523 LP |
347 | void (*cgroup_notify_empty)(Unit *u); |
348 | ||
8c47c732 | 349 | /* Called whenever a process of this unit sends us a message */ |
c952c6ec | 350 | void (*notify_message)(Unit *u, pid_t pid, char **tags); |
8c47c732 | 351 | |
05e343b7 LP |
352 | /* Called whenever a name thus Unit registered for comes or |
353 | * goes away. */ | |
354 | void (*bus_name_owner_change)(Unit *u, const char *name, const char *old_owner, const char *new_owner); | |
355 | ||
356 | /* Called whenever a bus PID lookup finishes */ | |
357 | void (*bus_query_pid_done)(Unit *u, const char *name, pid_t pid); | |
358 | ||
4139c1b2 | 359 | /* Called for each message received on the bus */ |
5e8d1c9a | 360 | DBusHandlerResult (*bus_message_handler)(Unit *u, DBusConnection *c, DBusMessage *message); |
4139c1b2 | 361 | |
a7f241db LP |
362 | /* Return the unit this unit is following */ |
363 | Unit *(*following)(Unit *u); | |
364 | ||
6210e7fc LP |
365 | /* Return the set of units that are following each other */ |
366 | int (*following_set)(Unit *u, Set **s); | |
367 | ||
8742514c LP |
368 | /* Called whenever CLOCK_REALTIME made a jump */ |
369 | void (*time_change)(Unit *u); | |
370 | ||
f50e0a01 LP |
371 | /* This is called for each unit type and should be used to |
372 | * enumerate existing devices and load them. However, | |
373 | * everything that is loaded here should still stay in | |
374 | * inactive state. It is the job of the coldplug() call above | |
375 | * to put the units into the initial state. */ | |
7824bbeb | 376 | int (*enumerate)(Manager *m); |
f50e0a01 LP |
377 | |
378 | /* Type specific cleanups. */ | |
7824bbeb | 379 | void (*shutdown)(Manager *m); |
9d58f1db | 380 | |
c4e2ceae | 381 | /* When sending out PropertiesChanged signal, which properties |
96d4ce01 | 382 | * shall be invalidated? This is a NUL separated list of |
c4e2ceae LP |
383 | * strings, to minimize relocations a little. */ |
384 | const char *bus_invalidating_properties; | |
385 | ||
386 | /* The interface name */ | |
387 | const char *bus_interface; | |
388 | ||
c6918296 MS |
389 | UnitStatusMessageFormats status_message_formats; |
390 | ||
9d58f1db LP |
391 | /* Can units of this type have multiple names? */ |
392 | bool no_alias:1; | |
393 | ||
9d58f1db LP |
394 | /* Instances make no sense for this type */ |
395 | bool no_instances:1; | |
396 | ||
701cc384 LP |
397 | /* Exclude from automatic gc */ |
398 | bool no_gc:1; | |
87f0e418 LP |
399 | }; |
400 | ||
401 | extern const UnitVTable * const unit_vtable[_UNIT_TYPE_MAX]; | |
402 | ||
ac155bb8 | 403 | #define UNIT_VTABLE(u) unit_vtable[(u)->type] |
87f0e418 LP |
404 | |
405 | /* For casting a unit into the various unit types */ | |
406 | #define DEFINE_CAST(UPPERCASE, MixedCase) \ | |
407 | static inline MixedCase* UPPERCASE(Unit *u) { \ | |
ac155bb8 | 408 | if (_unlikely_(!u || u->type != UNIT_##UPPERCASE)) \ |
87f0e418 LP |
409 | return NULL; \ |
410 | \ | |
411 | return (MixedCase*) u; \ | |
412 | } | |
413 | ||
414 | /* For casting the various unit types into a unit */ | |
ac155bb8 | 415 | #define UNIT(u) (&(u)->meta) |
87f0e418 LP |
416 | |
417 | DEFINE_CAST(SOCKET, Socket); | |
418 | DEFINE_CAST(TIMER, Timer); | |
419 | DEFINE_CAST(SERVICE, Service); | |
420 | DEFINE_CAST(TARGET, Target); | |
421 | DEFINE_CAST(DEVICE, Device); | |
422 | DEFINE_CAST(MOUNT, Mount); | |
423 | DEFINE_CAST(AUTOMOUNT, Automount); | |
424 | DEFINE_CAST(SNAPSHOT, Snapshot); | |
07b0b134 | 425 | DEFINE_CAST(SWAP, Swap); |
01f78473 | 426 | DEFINE_CAST(PATH, Path); |
87f0e418 | 427 | |
7d17cfbc | 428 | Unit *unit_new(Manager *m, size_t size); |
87f0e418 LP |
429 | void unit_free(Unit *u); |
430 | ||
431 | int unit_add_name(Unit *u, const char *name); | |
9e2f7c11 | 432 | |
701cc384 | 433 | int unit_add_dependency(Unit *u, UnitDependency d, Unit *other, bool add_reference); |
2c966c03 LP |
434 | int unit_add_two_dependencies(Unit *u, UnitDependency d, UnitDependency e, Unit *other, bool add_reference); |
435 | ||
701cc384 | 436 | int unit_add_dependency_by_name(Unit *u, UnitDependency d, const char *name, const char *filename, bool add_reference); |
2c966c03 LP |
437 | int unit_add_two_dependencies_by_name(Unit *u, UnitDependency d, UnitDependency e, const char *name, const char *path, bool add_reference); |
438 | ||
701cc384 | 439 | int unit_add_dependency_by_name_inverse(Unit *u, UnitDependency d, const char *name, const char *filename, bool add_reference); |
2c966c03 | 440 | int unit_add_two_dependencies_by_name_inverse(Unit *u, UnitDependency d, UnitDependency e, const char *name, const char *path, bool add_reference); |
0ae97ec1 | 441 | |
23a177ef LP |
442 | int unit_add_exec_dependencies(Unit *u, ExecContext *c); |
443 | ||
8e274523 | 444 | int unit_add_cgroup(Unit *u, CGroupBonding *b); |
246aa6dd | 445 | int unit_add_cgroup_from_text(Unit *u, const char *name, bool overwrite, CGroupBonding **ret); |
d686d8a9 | 446 | int unit_add_default_cgroups(Unit *u); |
8e274523 | 447 | CGroupBonding* unit_get_default_cgroup(Unit *u); |
246aa6dd | 448 | int unit_add_cgroup_attribute(Unit *u, const char *controller, const char *name, const char *value, CGroupAttributeMapCallback map_callback, CGroupAttribute **ret); |
8e274523 | 449 | |
0ae97ec1 | 450 | int unit_choose_id(Unit *u, const char *name); |
f50e0a01 | 451 | int unit_set_description(Unit *u, const char *description); |
87f0e418 | 452 | |
701cc384 LP |
453 | bool unit_check_gc(Unit *u); |
454 | ||
87f0e418 | 455 | void unit_add_to_load_queue(Unit *u); |
c1e1601e | 456 | void unit_add_to_dbus_queue(Unit *u); |
23a177ef | 457 | void unit_add_to_cleanup_queue(Unit *u); |
701cc384 | 458 | void unit_add_to_gc_queue(Unit *u); |
87f0e418 LP |
459 | |
460 | int unit_merge(Unit *u, Unit *other); | |
23a177ef LP |
461 | int unit_merge_by_name(Unit *u, const char *other); |
462 | ||
463 | Unit *unit_follow_merge(Unit *u); | |
87f0e418 | 464 | |
e537352b LP |
465 | int unit_load_fragment_and_dropin(Unit *u); |
466 | int unit_load_fragment_and_dropin_optional(Unit *u); | |
87f0e418 LP |
467 | int unit_load(Unit *unit); |
468 | ||
87f0e418 LP |
469 | const char *unit_description(Unit *u); |
470 | ||
f278026d LP |
471 | bool unit_has_name(Unit *u, const char *name); |
472 | ||
87f0e418 LP |
473 | UnitActiveState unit_active_state(Unit *u); |
474 | ||
10a94420 LP |
475 | const char* unit_sub_state_to_string(Unit *u); |
476 | ||
87f0e418 LP |
477 | void unit_dump(Unit *u, FILE *f, const char *prefix); |
478 | ||
479 | bool unit_can_reload(Unit *u); | |
480 | bool unit_can_start(Unit *u); | |
2528a7a6 | 481 | bool unit_can_isolate(Unit *u); |
87f0e418 LP |
482 | |
483 | int unit_start(Unit *u); | |
484 | int unit_stop(Unit *u); | |
485 | int unit_reload(Unit *u); | |
486 | ||
c74f17d9 | 487 | int unit_kill(Unit *u, KillWho w, int signo, DBusError *error); |
8a0867d6 | 488 | |
e2f3b44c | 489 | void unit_notify(Unit *u, UnitActiveState os, UnitActiveState ns, bool reload_success); |
87f0e418 | 490 | |
acbb0225 LP |
491 | int unit_watch_fd(Unit *u, int fd, uint32_t events, Watch *w); |
492 | void unit_unwatch_fd(Unit *u, Watch *w); | |
87f0e418 LP |
493 | |
494 | int unit_watch_pid(Unit *u, pid_t pid); | |
495 | void unit_unwatch_pid(Unit *u, pid_t pid); | |
496 | ||
36697dc0 | 497 | int unit_watch_timer(Unit *u, clockid_t, bool relative, usec_t usec, Watch *w); |
acbb0225 | 498 | void unit_unwatch_timer(Unit *u, Watch *w); |
87f0e418 | 499 | |
05e343b7 LP |
500 | int unit_watch_bus_name(Unit *u, const char *name); |
501 | void unit_unwatch_bus_name(Unit *u, const char *name); | |
502 | ||
87f0e418 LP |
503 | bool unit_job_is_applicable(Unit *u, JobType j); |
504 | ||
0301abf4 LP |
505 | int set_unit_path(const char *p); |
506 | ||
50159e6a LP |
507 | char *unit_dbus_path(Unit *u); |
508 | ||
f6ff8c29 | 509 | int unit_load_related_unit(Unit *u, const char *type, Unit **_found); |
a16e1123 | 510 | int unit_get_related_unit(Unit *u, const char *type, Unit **_found); |
f6ff8c29 | 511 | |
a16e1123 | 512 | bool unit_can_serialize(Unit *u); |
6b78f9b4 | 513 | int unit_serialize(Unit *u, FILE *f, FDSet *fds, bool serialize_jobs); |
93a46b0b | 514 | void unit_serialize_item_format(Unit *u, FILE *f, const char *key, const char *value, ...) _printf_attr_(4,5); |
a16e1123 LP |
515 | void unit_serialize_item(Unit *u, FILE *f, const char *key, const char *value); |
516 | int unit_deserialize(Unit *u, FILE *f, FDSet *fds); | |
517 | ||
6e2ef85b LP |
518 | int unit_add_node_link(Unit *u, const char *what, bool wants); |
519 | ||
cca098b0 LP |
520 | int unit_coldplug(Unit *u); |
521 | ||
5831e9b7 | 522 | void unit_status_printf(Unit *u, const char *status, const char *format, ...); |
9e58ff9c | 523 | |
45fb0699 LP |
524 | bool unit_need_daemon_reload(Unit *u); |
525 | ||
fdf20a31 | 526 | void unit_reset_failed(Unit *u); |
5632e374 | 527 | |
a7f241db LP |
528 | Unit *unit_following(Unit *u); |
529 | ||
18ffdfda | 530 | bool unit_pending_inactive(Unit *u); |
f976f3f6 | 531 | bool unit_pending_active(Unit *u); |
18ffdfda | 532 | |
bba34eed LP |
533 | int unit_add_default_target_dependency(Unit *u, Unit *target); |
534 | ||
41f9172f LP |
535 | char *unit_default_cgroup_path(Unit *u); |
536 | ||
6210e7fc LP |
537 | int unit_following_set(Unit *u, Set **s); |
538 | ||
c0daa706 LP |
539 | void unit_trigger_on_failure(Unit *u); |
540 | ||
90bbc946 LP |
541 | bool unit_condition_test(Unit *u); |
542 | ||
a4375746 LP |
543 | UnitFileState unit_get_unit_file_state(Unit *u); |
544 | ||
57020a3a LP |
545 | Unit* unit_ref_set(UnitRef *ref, Unit *u); |
546 | void unit_ref_unset(UnitRef *ref); | |
547 | ||
548 | #define UNIT_DEREF(ref) ((ref).unit) | |
549 | ||
7c8fa05c LP |
550 | int unit_add_one_mount_link(Unit *u, Mount *m); |
551 | int unit_add_mount_links(Unit *u); | |
552 | ||
cba6e062 | 553 | int unit_exec_context_defaults(Unit *u, ExecContext *c); |
e06c73cc | 554 | |
3ef63c31 LP |
555 | ExecContext *unit_get_exec_context(Unit *u); |
556 | ||
71645aca LP |
557 | int unit_write_drop_in(Unit *u, bool runtime, const char *name, const char *data); |
558 | int unit_remove_drop_in(Unit *u, bool runtime, const char *name); | |
559 | ||
94f04347 LP |
560 | const char *unit_active_state_to_string(UnitActiveState i); |
561 | UnitActiveState unit_active_state_from_string(const char *s); | |
562 | ||
563 | const char *unit_dependency_to_string(UnitDependency i); | |
564 | UnitDependency unit_dependency_from_string(const char *s); | |
fdf9f9bb | 565 | |
bbc9006e | 566 | #define log_full_unit(level, unit, ...) log_meta_object(level, __FILE__, __LINE__, __func__, getpid() == 1 ? "UNIT=" : "USER_UNIT=", unit, __VA_ARGS__) |
fdf9f9bb ZJS |
567 | #define log_debug_unit(unit, ...) log_full_unit(LOG_DEBUG, unit, __VA_ARGS__) |
568 | #define log_info_unit(unit, ...) log_full_unit(LOG_INFO, unit, __VA_ARGS__) | |
569 | #define log_notice_unit(unit, ...) log_full_unit(LOG_NOTICE, unit, __VA_ARGS__) | |
570 | #define log_warning_unit(unit, ...) log_full_unit(LOG_WARNING, unit, __VA_ARGS__) | |
571 | #define log_error_unit(unit, ...) log_full_unit(LOG_ERR, unit, __VA_ARGS__) | |
bbc9006e MT |
572 | |
573 | #define log_struct_unit(level, unit, ...) log_struct(level, getpid() == 1 ? "UNIT=%s" : "USER_UNIT=%s", unit, __VA_ARGS__) |