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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" |
26d04f86 | 43 | #include "cgroup-semantics.h" |
87f0e418 | 44 | |
87f0e418 LP |
45 | enum UnitActiveState { |
46 | UNIT_ACTIVE, | |
032ff4af | 47 | UNIT_RELOADING, |
87f0e418 | 48 | UNIT_INACTIVE, |
fdf20a31 | 49 | UNIT_FAILED, |
87f0e418 LP |
50 | UNIT_ACTIVATING, |
51 | UNIT_DEACTIVATING, | |
94f04347 LP |
52 | _UNIT_ACTIVE_STATE_MAX, |
53 | _UNIT_ACTIVE_STATE_INVALID = -1 | |
87f0e418 LP |
54 | }; |
55 | ||
56 | static inline bool UNIT_IS_ACTIVE_OR_RELOADING(UnitActiveState t) { | |
032ff4af | 57 | return t == UNIT_ACTIVE || t == UNIT_RELOADING; |
87f0e418 LP |
58 | } |
59 | ||
60 | static inline bool UNIT_IS_ACTIVE_OR_ACTIVATING(UnitActiveState t) { | |
032ff4af | 61 | return t == UNIT_ACTIVE || t == UNIT_ACTIVATING || t == UNIT_RELOADING; |
87f0e418 LP |
62 | } |
63 | ||
64 | static inline bool UNIT_IS_INACTIVE_OR_DEACTIVATING(UnitActiveState t) { | |
fdf20a31 | 65 | return t == UNIT_INACTIVE || t == UNIT_FAILED || t == UNIT_DEACTIVATING; |
6124958c LP |
66 | } |
67 | ||
fdf20a31 MM |
68 | static inline bool UNIT_IS_INACTIVE_OR_FAILED(UnitActiveState t) { |
69 | return t == UNIT_INACTIVE || t == UNIT_FAILED; | |
87f0e418 LP |
70 | } |
71 | ||
72 | enum UnitDependency { | |
73 | /* Positive dependencies */ | |
74 | UNIT_REQUIRES, | |
9e2f7c11 | 75 | UNIT_REQUIRES_OVERRIDABLE, |
87f0e418 | 76 | UNIT_REQUISITE, |
9e2f7c11 LP |
77 | UNIT_REQUISITE_OVERRIDABLE, |
78 | UNIT_WANTS, | |
7f2cddae | 79 | UNIT_BINDS_TO, |
85e9a101 | 80 | UNIT_PART_OF, |
87f0e418 LP |
81 | |
82 | /* Inverse of the above */ | |
9e2f7c11 | 83 | UNIT_REQUIRED_BY, /* inverse of 'requires' and 'requisite' is 'required_by' */ |
f14e15f8 | 84 | UNIT_REQUIRED_BY_OVERRIDABLE, /* inverse of 'requires_overridable' and 'requisite_overridable' is 'soft_required_by' */ |
9e2f7c11 | 85 | UNIT_WANTED_BY, /* inverse of 'wants' */ |
7f2cddae | 86 | UNIT_BOUND_BY, /* inverse of 'binds_to' */ |
85e9a101 | 87 | UNIT_CONSISTS_OF, /* inverse of 'part_of' */ |
87f0e418 LP |
88 | |
89 | /* Negative dependencies */ | |
69dd2852 LP |
90 | UNIT_CONFLICTS, /* inverse of 'conflicts' is 'conflicted_by' */ |
91 | UNIT_CONFLICTED_BY, | |
87f0e418 LP |
92 | |
93 | /* Order */ | |
701cc384 | 94 | UNIT_BEFORE, /* inverse of 'before' is 'after' and vice versa */ |
87f0e418 LP |
95 | UNIT_AFTER, |
96 | ||
5de9682c LP |
97 | /* On Failure */ |
98 | UNIT_ON_FAILURE, | |
99 | ||
57020a3a LP |
100 | /* Triggers (i.e. a socket triggers a service) */ |
101 | UNIT_TRIGGERS, | |
102 | UNIT_TRIGGERED_BY, | |
103 | ||
4dcc1cb4 | 104 | /* Propagate reloads */ |
7f2cddae LP |
105 | UNIT_PROPAGATES_RELOAD_TO, |
106 | UNIT_RELOAD_PROPAGATED_FROM, | |
4dcc1cb4 | 107 | |
701cc384 LP |
108 | /* Reference information for GC logic */ |
109 | UNIT_REFERENCES, /* Inverse of 'references' is 'referenced_by' */ | |
110 | UNIT_REFERENCED_BY, | |
111 | ||
87f0e418 LP |
112 | _UNIT_DEPENDENCY_MAX, |
113 | _UNIT_DEPENDENCY_INVALID = -1 | |
114 | }; | |
115 | ||
ef734fd6 LP |
116 | #include "manager.h" |
117 | #include "job.h" | |
8e274523 | 118 | #include "cgroup.h" |
ab1f0633 | 119 | #include "cgroup-attr.h" |
ef734fd6 | 120 | |
ac155bb8 | 121 | struct Unit { |
87f0e418 | 122 | Manager *manager; |
23a177ef | 123 | |
87f0e418 LP |
124 | UnitType type; |
125 | UnitLoadState load_state; | |
23a177ef | 126 | Unit *merged_into; |
87f0e418 LP |
127 | |
128 | char *id; /* One name is special because we use it for identification. Points to an entry in the names set */ | |
9e2f7c11 | 129 | char *instance; |
87f0e418 LP |
130 | |
131 | Set *names; | |
132 | Set *dependencies[_UNIT_DEPENDENCY_MAX]; | |
133 | ||
7c8fa05c LP |
134 | char **requires_mounts_for; |
135 | ||
87f0e418 | 136 | char *description; |
49dbfa7b | 137 | char **documentation; |
faf919f1 | 138 | |
6be1e7d5 | 139 | char *fragment_path; /* if loaded from a config file this is the primary path to it */ |
1b64d026 | 140 | char *source_path; /* if converted, the source file */ |
ae7a7182 | 141 | char **dropin_paths; |
45fb0699 | 142 | usec_t fragment_mtime; |
1b64d026 | 143 | usec_t source_mtime; |
ae7a7182 | 144 | usec_t dropin_mtime; |
87f0e418 | 145 | |
e0209d83 | 146 | /* If there is something to do with this unit, then this is the installed job for it */ |
87f0e418 LP |
147 | Job *job; |
148 | ||
e0209d83 MS |
149 | /* JOB_NOP jobs are special and can be installed without disturbing the real job. */ |
150 | Job *nop_job; | |
151 | ||
faf919f1 LP |
152 | usec_t job_timeout; |
153 | ||
57020a3a LP |
154 | /* References to this */ |
155 | LIST_HEAD(UnitRef, refs); | |
156 | ||
52661efd LP |
157 | /* Conditions to check */ |
158 | LIST_HEAD(Condition, conditions); | |
159 | ||
90bbc946 LP |
160 | dual_timestamp condition_timestamp; |
161 | ||
63983207 LP |
162 | dual_timestamp inactive_exit_timestamp; |
163 | dual_timestamp active_enter_timestamp; | |
164 | dual_timestamp active_exit_timestamp; | |
165 | dual_timestamp inactive_enter_timestamp; | |
87f0e418 | 166 | |
8e274523 LP |
167 | /* Counterparts in the cgroup filesystem */ |
168 | CGroupBonding *cgroup_bondings; | |
ab1f0633 | 169 | CGroupAttribute *cgroup_attributes; |
8e274523 | 170 | |
ef734fd6 | 171 | /* Per type list */ |
ac155bb8 | 172 | LIST_FIELDS(Unit, units_by_type); |
c1e1601e | 173 | |
7c8fa05c LP |
174 | /* All units which have requires_mounts_for set */ |
175 | LIST_FIELDS(Unit, has_requires_mounts_for); | |
176 | ||
701cc384 | 177 | /* Load queue */ |
ac155bb8 | 178 | LIST_FIELDS(Unit, load_queue); |
701cc384 | 179 | |
c1e1601e | 180 | /* D-Bus queue */ |
ac155bb8 | 181 | LIST_FIELDS(Unit, dbus_queue); |
23a177ef LP |
182 | |
183 | /* Cleanup queue */ | |
ac155bb8 | 184 | LIST_FIELDS(Unit, cleanup_queue); |
9d58f1db | 185 | |
701cc384 | 186 | /* GC queue */ |
ac155bb8 | 187 | LIST_FIELDS(Unit, gc_queue); |
701cc384 LP |
188 | |
189 | /* Used during GC sweeps */ | |
eced69b3 | 190 | unsigned gc_marker; |
701cc384 | 191 | |
7fab9d01 | 192 | /* When deserializing, temporarily store the job type for this |
39a18c60 MS |
193 | * unit here, if there was a job scheduled. |
194 | * Only for deserializing from a legacy version. New style uses full | |
195 | * serialized jobs. */ | |
7fab9d01 LP |
196 | int deserialized_job; /* This is actually of type JobType */ |
197 | ||
8821a00f LP |
198 | /* Error code when we didn't manage to load the unit (negative) */ |
199 | int load_error; | |
200 | ||
a4375746 LP |
201 | /* Cached unit file state */ |
202 | UnitFileState unit_file_state; | |
203 | ||
9d58f1db LP |
204 | /* Garbage collect us we nobody wants or requires us anymore */ |
205 | bool stop_when_unneeded; | |
206 | ||
35b8ca3a | 207 | /* Create default dependencies */ |
a40eb732 LP |
208 | bool default_dependencies; |
209 | ||
b5e9dba8 LP |
210 | /* Refuse manual starting, allow starting only indirectly via dependency. */ |
211 | bool refuse_manual_start; | |
212 | ||
213 | /* Don't allow the user to stop this unit manually, allow stopping only indirectly via dependency. */ | |
214 | bool refuse_manual_stop; | |
215 | ||
2528a7a6 LP |
216 | /* Allow isolation requests */ |
217 | bool allow_isolate; | |
218 | ||
222ae6a8 LP |
219 | /* Isolate OnFailure unit */ |
220 | bool on_failure_isolate; | |
221 | ||
c8f4d764 LP |
222 | /* Ignore this unit when isolating */ |
223 | bool ignore_on_isolate; | |
224 | ||
7a6000a6 LP |
225 | /* Ignore this unit when snapshotting */ |
226 | bool ignore_on_snapshot; | |
227 | ||
49f43d5f | 228 | /* Did the last condition check succeed? */ |
90bbc946 LP |
229 | bool condition_result; |
230 | ||
9d58f1db LP |
231 | bool in_load_queue:1; |
232 | bool in_dbus_queue:1; | |
233 | bool in_cleanup_queue:1; | |
701cc384 LP |
234 | bool in_gc_queue:1; |
235 | ||
9d58f1db | 236 | bool sent_dbus_new_signal:1; |
6c073082 LP |
237 | |
238 | bool no_gc:1; | |
cd6d0a45 LP |
239 | |
240 | bool in_audit:1; | |
87f0e418 LP |
241 | }; |
242 | ||
57020a3a LP |
243 | struct UnitRef { |
244 | /* Keeps tracks of references to a unit. This is useful so | |
245 | * that we can merge two units if necessary and correct all | |
246 | * references to them */ | |
247 | ||
248 | Unit* unit; | |
249 | LIST_FIELDS(UnitRef, refs); | |
250 | }; | |
251 | ||
c6918296 MS |
252 | struct UnitStatusMessageFormats { |
253 | const char *starting_stopping[2]; | |
254 | const char *finished_start_job[_JOB_RESULT_MAX]; | |
255 | const char *finished_stop_job[_JOB_RESULT_MAX]; | |
256 | }; | |
257 | ||
87f0e418 LP |
258 | #include "service.h" |
259 | #include "timer.h" | |
260 | #include "socket.h" | |
261 | #include "target.h" | |
262 | #include "device.h" | |
263 | #include "mount.h" | |
264 | #include "automount.h" | |
265 | #include "snapshot.h" | |
07b0b134 | 266 | #include "swap.h" |
01f78473 | 267 | #include "path.h" |
87f0e418 | 268 | |
87f0e418 | 269 | struct UnitVTable { |
7d17cfbc MS |
270 | /* How much memory does an object of this unit type need */ |
271 | size_t object_size; | |
272 | ||
3ef63c31 LP |
273 | /* If greater than 0, the offset into the object where |
274 | * ExecContext is found, if the unit type has that */ | |
275 | size_t exec_context_offset; | |
276 | ||
71645aca LP |
277 | /* The name of the section with the exec settings of ExecContext */ |
278 | const char *exec_section; | |
279 | ||
f975e971 LP |
280 | /* Config file sections this unit type understands, separated |
281 | * by NUL chars */ | |
282 | const char *sections; | |
283 | ||
e537352b | 284 | /* This should reset all type-specific variables. This should |
a16e1123 LP |
285 | * not allocate memory, and is called with zero-initialized |
286 | * data. It should hence only initialize variables that need | |
287 | * to be set != 0. */ | |
e537352b LP |
288 | void (*init)(Unit *u); |
289 | ||
a16e1123 LP |
290 | /* This should free all type-specific variables. It should be |
291 | * idempotent. */ | |
292 | void (*done)(Unit *u); | |
293 | ||
e537352b LP |
294 | /* Actually load data from disk. This may fail, and should set |
295 | * load_state to UNIT_LOADED, UNIT_MERGED or leave it at | |
296 | * UNIT_STUB if no configuration could be found. */ | |
297 | int (*load)(Unit *u); | |
298 | ||
c5315881 | 299 | /* If a lot of units got created via enumerate(), this is |
e537352b | 300 | * where to actually set the state and call unit_notify(). */ |
f50e0a01 | 301 | int (*coldplug)(Unit *u); |
87f0e418 LP |
302 | |
303 | void (*dump)(Unit *u, FILE *f, const char *prefix); | |
304 | ||
305 | int (*start)(Unit *u); | |
306 | int (*stop)(Unit *u); | |
307 | int (*reload)(Unit *u); | |
308 | ||
c74f17d9 | 309 | int (*kill)(Unit *u, KillWho w, int signo, DBusError *error); |
8a0867d6 | 310 | |
87f0e418 LP |
311 | bool (*can_reload)(Unit *u); |
312 | ||
a16e1123 LP |
313 | /* Write all data that cannot be restored from other sources |
314 | * away using unit_serialize_item() */ | |
315 | int (*serialize)(Unit *u, FILE *f, FDSet *fds); | |
316 | ||
317 | /* Restore one item from the serialization */ | |
318 | int (*deserialize_item)(Unit *u, const char *key, const char *data, FDSet *fds); | |
319 | ||
01e10de3 LP |
320 | /* Try to match up fds with what we need for this unit */ |
321 | int (*distribute_fds)(Unit *u, FDSet *fds); | |
322 | ||
87f0e418 LP |
323 | /* Boils down the more complex internal state of this unit to |
324 | * a simpler one that the engine can understand */ | |
325 | UnitActiveState (*active_state)(Unit *u); | |
326 | ||
10a94420 LP |
327 | /* Returns the substate specific to this unit type as |
328 | * string. This is purely information so that we can give the | |
35b8ca3a | 329 | * user a more fine grained explanation in which actual state a |
10a94420 LP |
330 | * unit is in. */ |
331 | const char* (*sub_state_to_string)(Unit *u); | |
332 | ||
701cc384 LP |
333 | /* Return true when there is reason to keep this entry around |
334 | * even nothing references it and it isn't active in any | |
335 | * way */ | |
336 | bool (*check_gc)(Unit *u); | |
337 | ||
338 | /* Return true when this unit is suitable for snapshotting */ | |
339 | bool (*check_snapshot)(Unit *u); | |
340 | ||
acbb0225 | 341 | void (*fd_event)(Unit *u, int fd, uint32_t events, Watch *w); |
87f0e418 | 342 | void (*sigchld_event)(Unit *u, pid_t pid, int code, int status); |
acbb0225 | 343 | void (*timer_event)(Unit *u, uint64_t n_elapsed, Watch *w); |
7824bbeb | 344 | |
fdf20a31 MM |
345 | /* Reset failed state if we are in failed state */ |
346 | void (*reset_failed)(Unit *u); | |
5632e374 | 347 | |
05e343b7 LP |
348 | /* Called whenever any of the cgroups this unit watches for |
349 | * ran empty */ | |
8e274523 LP |
350 | void (*cgroup_notify_empty)(Unit *u); |
351 | ||
8c47c732 | 352 | /* Called whenever a process of this unit sends us a message */ |
c952c6ec | 353 | void (*notify_message)(Unit *u, pid_t pid, char **tags); |
8c47c732 | 354 | |
3ecaa09b | 355 | /* Called whenever a name this Unit registered for comes or |
05e343b7 LP |
356 | * goes away. */ |
357 | void (*bus_name_owner_change)(Unit *u, const char *name, const char *old_owner, const char *new_owner); | |
358 | ||
359 | /* Called whenever a bus PID lookup finishes */ | |
360 | void (*bus_query_pid_done)(Unit *u, const char *name, pid_t pid); | |
361 | ||
4139c1b2 | 362 | /* Called for each message received on the bus */ |
5e8d1c9a | 363 | DBusHandlerResult (*bus_message_handler)(Unit *u, DBusConnection *c, DBusMessage *message); |
4139c1b2 | 364 | |
a7f241db LP |
365 | /* Return the unit this unit is following */ |
366 | Unit *(*following)(Unit *u); | |
367 | ||
6210e7fc LP |
368 | /* Return the set of units that are following each other */ |
369 | int (*following_set)(Unit *u, Set **s); | |
370 | ||
3ecaa09b LP |
371 | /* Invoked each time a unit this unit is triggering changes |
372 | * state or gains/loses a job */ | |
373 | void (*trigger_notify)(Unit *u, Unit *trigger); | |
374 | ||
8742514c LP |
375 | /* Called whenever CLOCK_REALTIME made a jump */ |
376 | void (*time_change)(Unit *u); | |
377 | ||
f50e0a01 LP |
378 | /* This is called for each unit type and should be used to |
379 | * enumerate existing devices and load them. However, | |
380 | * everything that is loaded here should still stay in | |
381 | * inactive state. It is the job of the coldplug() call above | |
382 | * to put the units into the initial state. */ | |
7824bbeb | 383 | int (*enumerate)(Manager *m); |
f50e0a01 LP |
384 | |
385 | /* Type specific cleanups. */ | |
7824bbeb | 386 | void (*shutdown)(Manager *m); |
9d58f1db | 387 | |
c4e2ceae | 388 | /* When sending out PropertiesChanged signal, which properties |
96d4ce01 | 389 | * shall be invalidated? This is a NUL separated list of |
c4e2ceae LP |
390 | * strings, to minimize relocations a little. */ |
391 | const char *bus_invalidating_properties; | |
392 | ||
393 | /* The interface name */ | |
394 | const char *bus_interface; | |
395 | ||
c6918296 MS |
396 | UnitStatusMessageFormats status_message_formats; |
397 | ||
9d58f1db LP |
398 | /* Can units of this type have multiple names? */ |
399 | bool no_alias:1; | |
400 | ||
9d58f1db LP |
401 | /* Instances make no sense for this type */ |
402 | bool no_instances:1; | |
403 | ||
701cc384 LP |
404 | /* Exclude from automatic gc */ |
405 | bool no_gc:1; | |
87f0e418 LP |
406 | }; |
407 | ||
408 | extern const UnitVTable * const unit_vtable[_UNIT_TYPE_MAX]; | |
409 | ||
ac155bb8 | 410 | #define UNIT_VTABLE(u) unit_vtable[(u)->type] |
87f0e418 LP |
411 | |
412 | /* For casting a unit into the various unit types */ | |
413 | #define DEFINE_CAST(UPPERCASE, MixedCase) \ | |
414 | static inline MixedCase* UPPERCASE(Unit *u) { \ | |
ac155bb8 | 415 | if (_unlikely_(!u || u->type != UNIT_##UPPERCASE)) \ |
87f0e418 LP |
416 | return NULL; \ |
417 | \ | |
418 | return (MixedCase*) u; \ | |
419 | } | |
420 | ||
421 | /* For casting the various unit types into a unit */ | |
ac155bb8 | 422 | #define UNIT(u) (&(u)->meta) |
87f0e418 | 423 | |
3ecaa09b LP |
424 | #define UNIT_TRIGGER(u) ((Unit*) set_first((u)->dependencies[UNIT_TRIGGERS])) |
425 | ||
87f0e418 LP |
426 | DEFINE_CAST(SOCKET, Socket); |
427 | DEFINE_CAST(TIMER, Timer); | |
428 | DEFINE_CAST(SERVICE, Service); | |
429 | DEFINE_CAST(TARGET, Target); | |
430 | DEFINE_CAST(DEVICE, Device); | |
431 | DEFINE_CAST(MOUNT, Mount); | |
432 | DEFINE_CAST(AUTOMOUNT, Automount); | |
433 | DEFINE_CAST(SNAPSHOT, Snapshot); | |
07b0b134 | 434 | DEFINE_CAST(SWAP, Swap); |
01f78473 | 435 | DEFINE_CAST(PATH, Path); |
87f0e418 | 436 | |
7d17cfbc | 437 | Unit *unit_new(Manager *m, size_t size); |
87f0e418 LP |
438 | void unit_free(Unit *u); |
439 | ||
440 | int unit_add_name(Unit *u, const char *name); | |
9e2f7c11 | 441 | |
701cc384 | 442 | int unit_add_dependency(Unit *u, UnitDependency d, Unit *other, bool add_reference); |
2c966c03 LP |
443 | int unit_add_two_dependencies(Unit *u, UnitDependency d, UnitDependency e, Unit *other, bool add_reference); |
444 | ||
701cc384 | 445 | int unit_add_dependency_by_name(Unit *u, UnitDependency d, const char *name, const char *filename, bool add_reference); |
2c966c03 LP |
446 | int unit_add_two_dependencies_by_name(Unit *u, UnitDependency d, UnitDependency e, const char *name, const char *path, bool add_reference); |
447 | ||
701cc384 | 448 | int unit_add_dependency_by_name_inverse(Unit *u, UnitDependency d, const char *name, const char *filename, bool add_reference); |
2c966c03 | 449 | int unit_add_two_dependencies_by_name_inverse(Unit *u, UnitDependency d, UnitDependency e, const char *name, const char *path, bool add_reference); |
0ae97ec1 | 450 | |
23a177ef LP |
451 | int unit_add_exec_dependencies(Unit *u, ExecContext *c); |
452 | ||
246aa6dd | 453 | int unit_add_cgroup_from_text(Unit *u, const char *name, bool overwrite, CGroupBonding **ret); |
d686d8a9 | 454 | int unit_add_default_cgroups(Unit *u); |
8e274523 | 455 | CGroupBonding* unit_get_default_cgroup(Unit *u); |
26d04f86 | 456 | int unit_add_cgroup_attribute(Unit *u, const CGroupSemantics *semantics, const char *controller, const char *name, const char *value, CGroupAttribute **ret); |
8e274523 | 457 | |
0ae97ec1 | 458 | int unit_choose_id(Unit *u, const char *name); |
f50e0a01 | 459 | int unit_set_description(Unit *u, const char *description); |
87f0e418 | 460 | |
701cc384 LP |
461 | bool unit_check_gc(Unit *u); |
462 | ||
87f0e418 | 463 | void unit_add_to_load_queue(Unit *u); |
c1e1601e | 464 | void unit_add_to_dbus_queue(Unit *u); |
23a177ef | 465 | void unit_add_to_cleanup_queue(Unit *u); |
701cc384 | 466 | void unit_add_to_gc_queue(Unit *u); |
87f0e418 LP |
467 | |
468 | int unit_merge(Unit *u, Unit *other); | |
23a177ef LP |
469 | int unit_merge_by_name(Unit *u, const char *other); |
470 | ||
44a6b1b6 | 471 | Unit *unit_follow_merge(Unit *u) _pure_; |
87f0e418 | 472 | |
e537352b LP |
473 | int unit_load_fragment_and_dropin(Unit *u); |
474 | int unit_load_fragment_and_dropin_optional(Unit *u); | |
87f0e418 LP |
475 | int unit_load(Unit *unit); |
476 | ||
44a6b1b6 | 477 | const char *unit_description(Unit *u) _pure_; |
87f0e418 | 478 | |
f278026d LP |
479 | bool unit_has_name(Unit *u, const char *name); |
480 | ||
87f0e418 LP |
481 | UnitActiveState unit_active_state(Unit *u); |
482 | ||
10a94420 LP |
483 | const char* unit_sub_state_to_string(Unit *u); |
484 | ||
87f0e418 LP |
485 | void unit_dump(Unit *u, FILE *f, const char *prefix); |
486 | ||
44a6b1b6 ZJS |
487 | bool unit_can_reload(Unit *u) _pure_; |
488 | bool unit_can_start(Unit *u) _pure_; | |
489 | bool unit_can_isolate(Unit *u) _pure_; | |
87f0e418 LP |
490 | |
491 | int unit_start(Unit *u); | |
492 | int unit_stop(Unit *u); | |
493 | int unit_reload(Unit *u); | |
494 | ||
c74f17d9 | 495 | int unit_kill(Unit *u, KillWho w, int signo, DBusError *error); |
814cc562 | 496 | int unit_kill_common(Unit *u, KillWho who, int signo, pid_t main_pid, pid_t control_pid, DBusError *error); |
8a0867d6 | 497 | |
e2f3b44c | 498 | void unit_notify(Unit *u, UnitActiveState os, UnitActiveState ns, bool reload_success); |
87f0e418 | 499 | |
acbb0225 LP |
500 | int unit_watch_fd(Unit *u, int fd, uint32_t events, Watch *w); |
501 | void unit_unwatch_fd(Unit *u, Watch *w); | |
87f0e418 LP |
502 | |
503 | int unit_watch_pid(Unit *u, pid_t pid); | |
504 | void unit_unwatch_pid(Unit *u, pid_t pid); | |
505 | ||
36697dc0 | 506 | int unit_watch_timer(Unit *u, clockid_t, bool relative, usec_t usec, Watch *w); |
acbb0225 | 507 | void unit_unwatch_timer(Unit *u, Watch *w); |
87f0e418 | 508 | |
05e343b7 LP |
509 | int unit_watch_bus_name(Unit *u, const char *name); |
510 | void unit_unwatch_bus_name(Unit *u, const char *name); | |
511 | ||
87f0e418 LP |
512 | bool unit_job_is_applicable(Unit *u, JobType j); |
513 | ||
0301abf4 LP |
514 | int set_unit_path(const char *p); |
515 | ||
50159e6a LP |
516 | char *unit_dbus_path(Unit *u); |
517 | ||
f6ff8c29 | 518 | int unit_load_related_unit(Unit *u, const char *type, Unit **_found); |
a16e1123 | 519 | int unit_get_related_unit(Unit *u, const char *type, Unit **_found); |
f6ff8c29 | 520 | |
44a6b1b6 | 521 | bool unit_can_serialize(Unit *u) _pure_; |
6b78f9b4 | 522 | int unit_serialize(Unit *u, FILE *f, FDSet *fds, bool serialize_jobs); |
93a46b0b | 523 | void unit_serialize_item_format(Unit *u, FILE *f, const char *key, const char *value, ...) _printf_attr_(4,5); |
a16e1123 LP |
524 | void unit_serialize_item(Unit *u, FILE *f, const char *key, const char *value); |
525 | int unit_deserialize(Unit *u, FILE *f, FDSet *fds); | |
526 | ||
6e2ef85b LP |
527 | int unit_add_node_link(Unit *u, const char *what, bool wants); |
528 | ||
cca098b0 LP |
529 | int unit_coldplug(Unit *u); |
530 | ||
b1e2b33c | 531 | void unit_status_printf(Unit *u, const char *status, const char *unit_status_msg_format) _printf_attr_(3, 0); |
9e58ff9c | 532 | |
45fb0699 LP |
533 | bool unit_need_daemon_reload(Unit *u); |
534 | ||
fdf20a31 | 535 | void unit_reset_failed(Unit *u); |
5632e374 | 536 | |
a7f241db LP |
537 | Unit *unit_following(Unit *u); |
538 | ||
44a6b1b6 ZJS |
539 | bool unit_stop_pending(Unit *u) _pure_; |
540 | bool unit_inactive_or_pending(Unit *u) _pure_; | |
31afa0a4 | 541 | bool unit_active_or_pending(Unit *u); |
18ffdfda | 542 | |
bba34eed LP |
543 | int unit_add_default_target_dependency(Unit *u, Unit *target); |
544 | ||
41f9172f LP |
545 | char *unit_default_cgroup_path(Unit *u); |
546 | ||
6210e7fc LP |
547 | int unit_following_set(Unit *u, Set **s); |
548 | ||
3ecaa09b LP |
549 | void unit_start_on_failure(Unit *u); |
550 | void unit_trigger_notify(Unit *u); | |
c0daa706 | 551 | |
90bbc946 LP |
552 | bool unit_condition_test(Unit *u); |
553 | ||
a4375746 LP |
554 | UnitFileState unit_get_unit_file_state(Unit *u); |
555 | ||
57020a3a LP |
556 | Unit* unit_ref_set(UnitRef *ref, Unit *u); |
557 | void unit_ref_unset(UnitRef *ref); | |
558 | ||
559 | #define UNIT_DEREF(ref) ((ref).unit) | |
560 | ||
7c8fa05c LP |
561 | int unit_add_one_mount_link(Unit *u, Mount *m); |
562 | int unit_add_mount_links(Unit *u); | |
563 | ||
cba6e062 | 564 | int unit_exec_context_defaults(Unit *u, ExecContext *c); |
e06c73cc | 565 | |
44a6b1b6 | 566 | ExecContext *unit_get_exec_context(Unit *u) _pure_; |
3ef63c31 | 567 | |
71645aca LP |
568 | int unit_write_drop_in(Unit *u, bool runtime, const char *name, const char *data); |
569 | int unit_remove_drop_in(Unit *u, bool runtime, const char *name); | |
570 | ||
cd2086fe LP |
571 | int unit_kill_context(Unit *u, KillContext *c, bool sigkill, pid_t main_pid, pid_t control_pid, bool main_pid_alien); |
572 | ||
44a6b1b6 ZJS |
573 | const char *unit_active_state_to_string(UnitActiveState i) _const_; |
574 | UnitActiveState unit_active_state_from_string(const char *s) _pure_; | |
94f04347 | 575 | |
44a6b1b6 ZJS |
576 | const char *unit_dependency_to_string(UnitDependency i) _const_; |
577 | UnitDependency unit_dependency_from_string(const char *s) _pure_; | |
fdf9f9bb | 578 | |
e8e581bf ZJS |
579 | /* Macros which append UNIT= or USER_UNIT= to the message */ |
580 | ||
bbc9006e | 581 | #define log_full_unit(level, unit, ...) log_meta_object(level, __FILE__, __LINE__, __func__, getpid() == 1 ? "UNIT=" : "USER_UNIT=", unit, __VA_ARGS__) |
fdf9f9bb ZJS |
582 | #define log_debug_unit(unit, ...) log_full_unit(LOG_DEBUG, unit, __VA_ARGS__) |
583 | #define log_info_unit(unit, ...) log_full_unit(LOG_INFO, unit, __VA_ARGS__) | |
584 | #define log_notice_unit(unit, ...) log_full_unit(LOG_NOTICE, unit, __VA_ARGS__) | |
585 | #define log_warning_unit(unit, ...) log_full_unit(LOG_WARNING, unit, __VA_ARGS__) | |
586 | #define log_error_unit(unit, ...) log_full_unit(LOG_ERR, unit, __VA_ARGS__) | |
bbc9006e MT |
587 | |
588 | #define log_struct_unit(level, unit, ...) log_struct(level, getpid() == 1 ? "UNIT=%s" : "USER_UNIT=%s", unit, __VA_ARGS__) |