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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 | 30 | typedef enum UnitActiveState UnitActiveState; |
57020a3a | 31 | typedef struct UnitRef UnitRef; |
c6918296 | 32 | typedef struct UnitStatusMessageFormats UnitStatusMessageFormats; |
87f0e418 | 33 | |
87f0e418 | 34 | #include "list.h" |
134e56dc | 35 | #include "condition.h" |
a4375746 | 36 | #include "install.h" |
0a9f8ed0 | 37 | #include "unit-name.h" |
f189ab18 | 38 | #include "failure-action.h" |
87f0e418 | 39 | |
87f0e418 LP |
40 | enum UnitActiveState { |
41 | UNIT_ACTIVE, | |
032ff4af | 42 | UNIT_RELOADING, |
87f0e418 | 43 | UNIT_INACTIVE, |
fdf20a31 | 44 | UNIT_FAILED, |
87f0e418 LP |
45 | UNIT_ACTIVATING, |
46 | UNIT_DEACTIVATING, | |
94f04347 LP |
47 | _UNIT_ACTIVE_STATE_MAX, |
48 | _UNIT_ACTIVE_STATE_INVALID = -1 | |
87f0e418 LP |
49 | }; |
50 | ||
db2cb23b UTL |
51 | typedef enum KillOperation { |
52 | KILL_TERMINATE, | |
53 | KILL_KILL, | |
54 | KILL_ABORT, | |
4940c0b0 LP |
55 | _KILL_OPERATION_MAX, |
56 | _KILL_OPERATION_INVALID = -1 | |
db2cb23b UTL |
57 | } KillOperation; |
58 | ||
87f0e418 | 59 | static inline bool UNIT_IS_ACTIVE_OR_RELOADING(UnitActiveState t) { |
032ff4af | 60 | return t == UNIT_ACTIVE || t == UNIT_RELOADING; |
87f0e418 LP |
61 | } |
62 | ||
63 | static inline bool UNIT_IS_ACTIVE_OR_ACTIVATING(UnitActiveState t) { | |
032ff4af | 64 | return t == UNIT_ACTIVE || t == UNIT_ACTIVATING || t == UNIT_RELOADING; |
87f0e418 LP |
65 | } |
66 | ||
67 | static inline bool UNIT_IS_INACTIVE_OR_DEACTIVATING(UnitActiveState t) { | |
fdf20a31 | 68 | return t == UNIT_INACTIVE || t == UNIT_FAILED || t == UNIT_DEACTIVATING; |
6124958c LP |
69 | } |
70 | ||
fdf20a31 MM |
71 | static inline bool UNIT_IS_INACTIVE_OR_FAILED(UnitActiveState t) { |
72 | return t == UNIT_INACTIVE || t == UNIT_FAILED; | |
87f0e418 LP |
73 | } |
74 | ||
ef734fd6 LP |
75 | #include "job.h" |
76 | ||
a016b922 LP |
77 | struct UnitRef { |
78 | /* Keeps tracks of references to a unit. This is useful so | |
79 | * that we can merge two units if necessary and correct all | |
80 | * references to them */ | |
81 | ||
82 | Unit* unit; | |
83 | LIST_FIELDS(UnitRef, refs); | |
84 | }; | |
85 | ||
ac155bb8 | 86 | struct Unit { |
87f0e418 | 87 | Manager *manager; |
23a177ef | 88 | |
87f0e418 LP |
89 | UnitType type; |
90 | UnitLoadState load_state; | |
23a177ef | 91 | Unit *merged_into; |
87f0e418 LP |
92 | |
93 | char *id; /* One name is special because we use it for identification. Points to an entry in the names set */ | |
9e2f7c11 | 94 | char *instance; |
87f0e418 LP |
95 | |
96 | Set *names; | |
97 | Set *dependencies[_UNIT_DEPENDENCY_MAX]; | |
98 | ||
7c8fa05c LP |
99 | char **requires_mounts_for; |
100 | ||
87f0e418 | 101 | char *description; |
49dbfa7b | 102 | char **documentation; |
faf919f1 | 103 | |
6be1e7d5 | 104 | char *fragment_path; /* if loaded from a config file this is the primary path to it */ |
1b64d026 | 105 | char *source_path; /* if converted, the source file */ |
ae7a7182 | 106 | char **dropin_paths; |
45fb0699 | 107 | usec_t fragment_mtime; |
1b64d026 | 108 | usec_t source_mtime; |
ae7a7182 | 109 | usec_t dropin_mtime; |
87f0e418 | 110 | |
e0209d83 | 111 | /* If there is something to do with this unit, then this is the installed job for it */ |
87f0e418 LP |
112 | Job *job; |
113 | ||
e0209d83 MS |
114 | /* JOB_NOP jobs are special and can be installed without disturbing the real job. */ |
115 | Job *nop_job; | |
116 | ||
f189ab18 | 117 | /* Job timeout and action to take */ |
faf919f1 | 118 | usec_t job_timeout; |
f189ab18 LP |
119 | FailureAction job_timeout_action; |
120 | char *job_timeout_reboot_arg; | |
faf919f1 | 121 | |
57020a3a LP |
122 | /* References to this */ |
123 | LIST_HEAD(UnitRef, refs); | |
124 | ||
52661efd LP |
125 | /* Conditions to check */ |
126 | LIST_HEAD(Condition, conditions); | |
59fccdc5 | 127 | LIST_HEAD(Condition, asserts); |
52661efd | 128 | |
90bbc946 | 129 | dual_timestamp condition_timestamp; |
59fccdc5 | 130 | dual_timestamp assert_timestamp; |
90bbc946 | 131 | |
63983207 LP |
132 | dual_timestamp inactive_exit_timestamp; |
133 | dual_timestamp active_enter_timestamp; | |
134 | dual_timestamp active_exit_timestamp; | |
135 | dual_timestamp inactive_enter_timestamp; | |
87f0e418 | 136 | |
a016b922 LP |
137 | UnitRef slice; |
138 | ||
ef734fd6 | 139 | /* Per type list */ |
ac155bb8 | 140 | LIST_FIELDS(Unit, units_by_type); |
c1e1601e | 141 | |
7c8fa05c LP |
142 | /* All units which have requires_mounts_for set */ |
143 | LIST_FIELDS(Unit, has_requires_mounts_for); | |
144 | ||
701cc384 | 145 | /* Load queue */ |
ac155bb8 | 146 | LIST_FIELDS(Unit, load_queue); |
701cc384 | 147 | |
c1e1601e | 148 | /* D-Bus queue */ |
ac155bb8 | 149 | LIST_FIELDS(Unit, dbus_queue); |
23a177ef LP |
150 | |
151 | /* Cleanup queue */ | |
ac155bb8 | 152 | LIST_FIELDS(Unit, cleanup_queue); |
9d58f1db | 153 | |
701cc384 | 154 | /* GC queue */ |
ac155bb8 | 155 | LIST_FIELDS(Unit, gc_queue); |
701cc384 | 156 | |
4ad49000 LP |
157 | /* CGroup realize members queue */ |
158 | LIST_FIELDS(Unit, cgroup_queue); | |
159 | ||
a911bb9a LP |
160 | /* PIDs we keep an eye on. Note that a unit might have many |
161 | * more, but these are the ones we care enough about to | |
162 | * process SIGCHLD for */ | |
163 | Set *pids; | |
164 | ||
701cc384 | 165 | /* Used during GC sweeps */ |
eced69b3 | 166 | unsigned gc_marker; |
701cc384 | 167 | |
7fab9d01 | 168 | /* When deserializing, temporarily store the job type for this |
39a18c60 MS |
169 | * unit here, if there was a job scheduled. |
170 | * Only for deserializing from a legacy version. New style uses full | |
171 | * serialized jobs. */ | |
7fab9d01 LP |
172 | int deserialized_job; /* This is actually of type JobType */ |
173 | ||
8821a00f LP |
174 | /* Error code when we didn't manage to load the unit (negative) */ |
175 | int load_error; | |
176 | ||
d2dc52db | 177 | /* Cached unit file state and preset */ |
a4375746 | 178 | UnitFileState unit_file_state; |
d2dc52db | 179 | int unit_file_preset; |
a4375746 | 180 | |
5ad096b3 LP |
181 | /* Where the cpuacct.usage cgroup counter was at the time the unit was started */ |
182 | nsec_t cpuacct_usage_base; | |
183 | ||
7c52a17b ZJS |
184 | /* Counterparts in the cgroup filesystem */ |
185 | char *cgroup_path; | |
186 | CGroupControllerMask cgroup_realized_mask; | |
187 | CGroupControllerMask cgroup_subtree_mask; | |
188 | CGroupControllerMask cgroup_members_mask; | |
189 | ||
190 | /* How to start OnFailure units */ | |
191 | JobMode on_failure_job_mode; | |
192 | ||
9d58f1db LP |
193 | /* Garbage collect us we nobody wants or requires us anymore */ |
194 | bool stop_when_unneeded; | |
195 | ||
35b8ca3a | 196 | /* Create default dependencies */ |
a40eb732 LP |
197 | bool default_dependencies; |
198 | ||
b5e9dba8 LP |
199 | /* Refuse manual starting, allow starting only indirectly via dependency. */ |
200 | bool refuse_manual_start; | |
201 | ||
202 | /* Don't allow the user to stop this unit manually, allow stopping only indirectly via dependency. */ | |
203 | bool refuse_manual_stop; | |
204 | ||
2528a7a6 LP |
205 | /* Allow isolation requests */ |
206 | bool allow_isolate; | |
207 | ||
c8f4d764 LP |
208 | /* Ignore this unit when isolating */ |
209 | bool ignore_on_isolate; | |
210 | ||
7a6000a6 LP |
211 | /* Ignore this unit when snapshotting */ |
212 | bool ignore_on_snapshot; | |
213 | ||
49f43d5f | 214 | /* Did the last condition check succeed? */ |
90bbc946 | 215 | bool condition_result; |
59fccdc5 | 216 | bool assert_result; |
90bbc946 | 217 | |
c2756a68 LP |
218 | /* Is this a transient unit? */ |
219 | bool transient; | |
220 | ||
9d58f1db LP |
221 | bool in_load_queue:1; |
222 | bool in_dbus_queue:1; | |
223 | bool in_cleanup_queue:1; | |
701cc384 | 224 | bool in_gc_queue:1; |
4ad49000 | 225 | bool in_cgroup_queue:1; |
701cc384 | 226 | |
9d58f1db | 227 | bool sent_dbus_new_signal:1; |
6c073082 LP |
228 | |
229 | bool no_gc:1; | |
cd6d0a45 LP |
230 | |
231 | bool in_audit:1; | |
a57f7e2c LP |
232 | |
233 | bool cgroup_realized:1; | |
bc432dc7 LP |
234 | bool cgroup_members_mask_valid:1; |
235 | bool cgroup_subtree_mask_valid:1; | |
87f0e418 LP |
236 | }; |
237 | ||
c6918296 MS |
238 | struct UnitStatusMessageFormats { |
239 | const char *starting_stopping[2]; | |
240 | const char *finished_start_job[_JOB_RESULT_MAX]; | |
241 | const char *finished_stop_job[_JOB_RESULT_MAX]; | |
242 | }; | |
243 | ||
8e2af478 LP |
244 | typedef enum UnitSetPropertiesMode { |
245 | UNIT_CHECK = 0, | |
246 | UNIT_RUNTIME = 1, | |
247 | UNIT_PERSISTENT = 2, | |
248 | } UnitSetPropertiesMode; | |
249 | ||
87f0e418 | 250 | #include "socket.h" |
e821075a | 251 | #include "busname.h" |
87f0e418 | 252 | #include "target.h" |
e821075a | 253 | #include "snapshot.h" |
87f0e418 | 254 | #include "device.h" |
87f0e418 | 255 | #include "automount.h" |
07b0b134 | 256 | #include "swap.h" |
e821075a | 257 | #include "timer.h" |
a016b922 | 258 | #include "slice.h" |
c1ff5570 | 259 | #include "path.h" |
6c12b52e | 260 | #include "scope.h" |
87f0e418 | 261 | |
87f0e418 | 262 | struct UnitVTable { |
7d17cfbc MS |
263 | /* How much memory does an object of this unit type need */ |
264 | size_t object_size; | |
265 | ||
3ef63c31 LP |
266 | /* If greater than 0, the offset into the object where |
267 | * ExecContext is found, if the unit type has that */ | |
268 | size_t exec_context_offset; | |
269 | ||
4ad49000 LP |
270 | /* If greater than 0, the offset into the object where |
271 | * CGroupContext is found, if the unit type has that */ | |
272 | size_t cgroup_context_offset; | |
273 | ||
718db961 LP |
274 | /* If greater than 0, the offset into the object where |
275 | * KillContext is found, if the unit type has that */ | |
276 | size_t kill_context_offset; | |
277 | ||
613b411c LP |
278 | /* If greater than 0, the offset into the object where the |
279 | * pointer to ExecRuntime is found, if the unit type has | |
280 | * that */ | |
281 | size_t exec_runtime_offset; | |
282 | ||
ee33e53a | 283 | /* The name of the configuration file section with the private settings of this unit */ |
4ad49000 | 284 | const char *private_section; |
71645aca | 285 | |
f975e971 LP |
286 | /* Config file sections this unit type understands, separated |
287 | * by NUL chars */ | |
288 | const char *sections; | |
289 | ||
e537352b | 290 | /* This should reset all type-specific variables. This should |
a16e1123 LP |
291 | * not allocate memory, and is called with zero-initialized |
292 | * data. It should hence only initialize variables that need | |
293 | * to be set != 0. */ | |
e537352b LP |
294 | void (*init)(Unit *u); |
295 | ||
a16e1123 LP |
296 | /* This should free all type-specific variables. It should be |
297 | * idempotent. */ | |
298 | void (*done)(Unit *u); | |
299 | ||
e537352b LP |
300 | /* Actually load data from disk. This may fail, and should set |
301 | * load_state to UNIT_LOADED, UNIT_MERGED or leave it at | |
302 | * UNIT_STUB if no configuration could be found. */ | |
303 | int (*load)(Unit *u); | |
304 | ||
c5315881 | 305 | /* If a lot of units got created via enumerate(), this is |
6e392c9c IS |
306 | * where to actually set the state and call unit_notify(). |
307 | * | |
308 | * This must not reference other units (maybe implicitly through spawning | |
309 | * jobs), because it is possible that they are not yet coldplugged. | |
310 | * Such actions must be deferred until the end of coldplug bу adding | |
311 | * a "Unit* -> int(*)(Unit*)" entry into the hashmap. | |
312 | */ | |
313 | int (*coldplug)(Unit *u, Hashmap *deferred_work); | |
87f0e418 LP |
314 | |
315 | void (*dump)(Unit *u, FILE *f, const char *prefix); | |
316 | ||
317 | int (*start)(Unit *u); | |
318 | int (*stop)(Unit *u); | |
319 | int (*reload)(Unit *u); | |
320 | ||
718db961 | 321 | int (*kill)(Unit *u, KillWho w, int signo, sd_bus_error *error); |
8a0867d6 | 322 | |
87f0e418 LP |
323 | bool (*can_reload)(Unit *u); |
324 | ||
a16e1123 LP |
325 | /* Write all data that cannot be restored from other sources |
326 | * away using unit_serialize_item() */ | |
327 | int (*serialize)(Unit *u, FILE *f, FDSet *fds); | |
328 | ||
329 | /* Restore one item from the serialization */ | |
330 | int (*deserialize_item)(Unit *u, const char *key, const char *data, FDSet *fds); | |
331 | ||
01e10de3 LP |
332 | /* Try to match up fds with what we need for this unit */ |
333 | int (*distribute_fds)(Unit *u, FDSet *fds); | |
334 | ||
87f0e418 LP |
335 | /* Boils down the more complex internal state of this unit to |
336 | * a simpler one that the engine can understand */ | |
337 | UnitActiveState (*active_state)(Unit *u); | |
338 | ||
10a94420 LP |
339 | /* Returns the substate specific to this unit type as |
340 | * string. This is purely information so that we can give the | |
35b8ca3a | 341 | * user a more fine grained explanation in which actual state a |
10a94420 LP |
342 | * unit is in. */ |
343 | const char* (*sub_state_to_string)(Unit *u); | |
344 | ||
701cc384 LP |
345 | /* Return true when there is reason to keep this entry around |
346 | * even nothing references it and it isn't active in any | |
347 | * way */ | |
348 | bool (*check_gc)(Unit *u); | |
349 | ||
a354329f LP |
350 | /* When the unit is not running and no job for it queued we |
351 | * shall release its runtime resources */ | |
352 | void (*release_resources)(Unit *u); | |
353 | ||
701cc384 LP |
354 | /* Return true when this unit is suitable for snapshotting */ |
355 | bool (*check_snapshot)(Unit *u); | |
356 | ||
718db961 | 357 | /* Invoked on every child that died */ |
87f0e418 | 358 | void (*sigchld_event)(Unit *u, pid_t pid, int code, int status); |
7824bbeb | 359 | |
fdf20a31 MM |
360 | /* Reset failed state if we are in failed state */ |
361 | void (*reset_failed)(Unit *u); | |
5632e374 | 362 | |
05e343b7 LP |
363 | /* Called whenever any of the cgroups this unit watches for |
364 | * ran empty */ | |
4ad49000 | 365 | void (*notify_cgroup_empty)(Unit *u); |
8e274523 | 366 | |
8c47c732 | 367 | /* Called whenever a process of this unit sends us a message */ |
a354329f | 368 | void (*notify_message)(Unit *u, pid_t pid, char **tags, FDSet *fds); |
8c47c732 | 369 | |
3ecaa09b | 370 | /* Called whenever a name this Unit registered for comes or |
05e343b7 LP |
371 | * goes away. */ |
372 | void (*bus_name_owner_change)(Unit *u, const char *name, const char *old_owner, const char *new_owner); | |
373 | ||
8e2af478 | 374 | /* Called for each property that is being set */ |
718db961 | 375 | int (*bus_set_property)(Unit *u, const char *name, sd_bus_message *message, UnitSetPropertiesMode mode, sd_bus_error *error); |
8e2af478 LP |
376 | |
377 | /* Called after at least one property got changed to apply the necessary change */ | |
378 | int (*bus_commit_properties)(Unit *u); | |
379 | ||
a7f241db LP |
380 | /* Return the unit this unit is following */ |
381 | Unit *(*following)(Unit *u); | |
382 | ||
6210e7fc LP |
383 | /* Return the set of units that are following each other */ |
384 | int (*following_set)(Unit *u, Set **s); | |
385 | ||
3ecaa09b LP |
386 | /* Invoked each time a unit this unit is triggering changes |
387 | * state or gains/loses a job */ | |
388 | void (*trigger_notify)(Unit *u, Unit *trigger); | |
389 | ||
8742514c LP |
390 | /* Called whenever CLOCK_REALTIME made a jump */ |
391 | void (*time_change)(Unit *u); | |
392 | ||
68db7a3b ZJS |
393 | int (*get_timeout)(Unit *u, uint64_t *timeout); |
394 | ||
f50e0a01 LP |
395 | /* This is called for each unit type and should be used to |
396 | * enumerate existing devices and load them. However, | |
397 | * everything that is loaded here should still stay in | |
398 | * inactive state. It is the job of the coldplug() call above | |
399 | * to put the units into the initial state. */ | |
7824bbeb | 400 | int (*enumerate)(Manager *m); |
f50e0a01 LP |
401 | |
402 | /* Type specific cleanups. */ | |
7824bbeb | 403 | void (*shutdown)(Manager *m); |
9d58f1db | 404 | |
0faacd47 LP |
405 | /* If this function is set and return false all jobs for units |
406 | * of this type will immediately fail. */ | |
407 | bool (*supported)(Manager *m); | |
408 | ||
c4e2ceae LP |
409 | /* The interface name */ |
410 | const char *bus_interface; | |
411 | ||
718db961 LP |
412 | /* The bus vtable */ |
413 | const sd_bus_vtable *bus_vtable; | |
414 | ||
718db961 | 415 | /* The strings to print in status messages */ |
c6918296 MS |
416 | UnitStatusMessageFormats status_message_formats; |
417 | ||
9d58f1db LP |
418 | /* Can units of this type have multiple names? */ |
419 | bool no_alias:1; | |
420 | ||
9d58f1db LP |
421 | /* Instances make no sense for this type */ |
422 | bool no_instances:1; | |
423 | ||
701cc384 LP |
424 | /* Exclude from automatic gc */ |
425 | bool no_gc:1; | |
c2756a68 LP |
426 | |
427 | /* True if transient units of this type are OK */ | |
428 | bool can_transient:1; | |
87f0e418 LP |
429 | }; |
430 | ||
431 | extern const UnitVTable * const unit_vtable[_UNIT_TYPE_MAX]; | |
432 | ||
ac155bb8 | 433 | #define UNIT_VTABLE(u) unit_vtable[(u)->type] |
87f0e418 LP |
434 | |
435 | /* For casting a unit into the various unit types */ | |
436 | #define DEFINE_CAST(UPPERCASE, MixedCase) \ | |
437 | static inline MixedCase* UPPERCASE(Unit *u) { \ | |
ac155bb8 | 438 | if (_unlikely_(!u || u->type != UNIT_##UPPERCASE)) \ |
87f0e418 LP |
439 | return NULL; \ |
440 | \ | |
441 | return (MixedCase*) u; \ | |
442 | } | |
443 | ||
444 | /* For casting the various unit types into a unit */ | |
ac155bb8 | 445 | #define UNIT(u) (&(u)->meta) |
87f0e418 | 446 | |
3ecaa09b LP |
447 | #define UNIT_TRIGGER(u) ((Unit*) set_first((u)->dependencies[UNIT_TRIGGERS])) |
448 | ||
87f0e418 | 449 | DEFINE_CAST(SERVICE, Service); |
e821075a LP |
450 | DEFINE_CAST(SOCKET, Socket); |
451 | DEFINE_CAST(BUSNAME, BusName); | |
87f0e418 | 452 | DEFINE_CAST(TARGET, Target); |
e821075a | 453 | DEFINE_CAST(SNAPSHOT, Snapshot); |
87f0e418 LP |
454 | DEFINE_CAST(DEVICE, Device); |
455 | DEFINE_CAST(MOUNT, Mount); | |
456 | DEFINE_CAST(AUTOMOUNT, Automount); | |
07b0b134 | 457 | DEFINE_CAST(SWAP, Swap); |
e821075a | 458 | DEFINE_CAST(TIMER, Timer); |
01f78473 | 459 | DEFINE_CAST(PATH, Path); |
a016b922 | 460 | DEFINE_CAST(SLICE, Slice); |
6c12b52e | 461 | DEFINE_CAST(SCOPE, Scope); |
87f0e418 | 462 | |
7d17cfbc | 463 | Unit *unit_new(Manager *m, size_t size); |
87f0e418 LP |
464 | void unit_free(Unit *u); |
465 | ||
466 | int unit_add_name(Unit *u, const char *name); | |
9e2f7c11 | 467 | |
701cc384 | 468 | int unit_add_dependency(Unit *u, UnitDependency d, Unit *other, bool add_reference); |
2c966c03 LP |
469 | int unit_add_two_dependencies(Unit *u, UnitDependency d, UnitDependency e, Unit *other, bool add_reference); |
470 | ||
701cc384 | 471 | int unit_add_dependency_by_name(Unit *u, UnitDependency d, const char *name, const char *filename, bool add_reference); |
2c966c03 LP |
472 | int unit_add_two_dependencies_by_name(Unit *u, UnitDependency d, UnitDependency e, const char *name, const char *path, bool add_reference); |
473 | ||
701cc384 | 474 | int unit_add_dependency_by_name_inverse(Unit *u, UnitDependency d, const char *name, const char *filename, bool add_reference); |
2c966c03 | 475 | int unit_add_two_dependencies_by_name_inverse(Unit *u, UnitDependency d, UnitDependency e, const char *name, const char *path, bool add_reference); |
0ae97ec1 | 476 | |
23a177ef LP |
477 | int unit_add_exec_dependencies(Unit *u, ExecContext *c); |
478 | ||
0ae97ec1 | 479 | int unit_choose_id(Unit *u, const char *name); |
f50e0a01 | 480 | int unit_set_description(Unit *u, const char *description); |
87f0e418 | 481 | |
701cc384 LP |
482 | bool unit_check_gc(Unit *u); |
483 | ||
87f0e418 | 484 | void unit_add_to_load_queue(Unit *u); |
c1e1601e | 485 | void unit_add_to_dbus_queue(Unit *u); |
23a177ef | 486 | void unit_add_to_cleanup_queue(Unit *u); |
701cc384 | 487 | void unit_add_to_gc_queue(Unit *u); |
87f0e418 LP |
488 | |
489 | int unit_merge(Unit *u, Unit *other); | |
23a177ef LP |
490 | int unit_merge_by_name(Unit *u, const char *other); |
491 | ||
44a6b1b6 | 492 | Unit *unit_follow_merge(Unit *u) _pure_; |
87f0e418 | 493 | |
e537352b LP |
494 | int unit_load_fragment_and_dropin(Unit *u); |
495 | int unit_load_fragment_and_dropin_optional(Unit *u); | |
87f0e418 LP |
496 | int unit_load(Unit *unit); |
497 | ||
598459ce | 498 | int unit_add_default_slice(Unit *u, CGroupContext *c); |
a016b922 | 499 | |
44a6b1b6 | 500 | const char *unit_description(Unit *u) _pure_; |
87f0e418 | 501 | |
f278026d LP |
502 | bool unit_has_name(Unit *u, const char *name); |
503 | ||
87f0e418 LP |
504 | UnitActiveState unit_active_state(Unit *u); |
505 | ||
10a94420 LP |
506 | const char* unit_sub_state_to_string(Unit *u); |
507 | ||
87f0e418 LP |
508 | void unit_dump(Unit *u, FILE *f, const char *prefix); |
509 | ||
44a6b1b6 ZJS |
510 | bool unit_can_reload(Unit *u) _pure_; |
511 | bool unit_can_start(Unit *u) _pure_; | |
512 | bool unit_can_isolate(Unit *u) _pure_; | |
87f0e418 LP |
513 | |
514 | int unit_start(Unit *u); | |
515 | int unit_stop(Unit *u); | |
516 | int unit_reload(Unit *u); | |
517 | ||
718db961 LP |
518 | int unit_kill(Unit *u, KillWho w, int signo, sd_bus_error *error); |
519 | int unit_kill_common(Unit *u, KillWho who, int signo, pid_t main_pid, pid_t control_pid, sd_bus_error *error); | |
8a0867d6 | 520 | |
e2f3b44c | 521 | void unit_notify(Unit *u, UnitActiveState os, UnitActiveState ns, bool reload_success); |
87f0e418 | 522 | |
87f0e418 LP |
523 | int unit_watch_pid(Unit *u, pid_t pid); |
524 | void unit_unwatch_pid(Unit *u, pid_t pid); | |
a911bb9a LP |
525 | int unit_watch_all_pids(Unit *u); |
526 | void unit_unwatch_all_pids(Unit *u); | |
527 | ||
528 | void unit_tidy_watch_pids(Unit *u, pid_t except1, pid_t except2); | |
87f0e418 | 529 | |
05e343b7 LP |
530 | int unit_watch_bus_name(Unit *u, const char *name); |
531 | void unit_unwatch_bus_name(Unit *u, const char *name); | |
532 | ||
87f0e418 LP |
533 | bool unit_job_is_applicable(Unit *u, JobType j); |
534 | ||
0301abf4 LP |
535 | int set_unit_path(const char *p); |
536 | ||
50159e6a LP |
537 | char *unit_dbus_path(Unit *u); |
538 | ||
f6ff8c29 LP |
539 | int unit_load_related_unit(Unit *u, const char *type, Unit **_found); |
540 | ||
44a6b1b6 | 541 | bool unit_can_serialize(Unit *u) _pure_; |
6b78f9b4 | 542 | int unit_serialize(Unit *u, FILE *f, FDSet *fds, bool serialize_jobs); |
44b601bc | 543 | void unit_serialize_item_format(Unit *u, FILE *f, const char *key, const char *value, ...) _printf_(4,5); |
a16e1123 LP |
544 | void unit_serialize_item(Unit *u, FILE *f, const char *key, const char *value); |
545 | int unit_deserialize(Unit *u, FILE *f, FDSet *fds); | |
546 | ||
6e2ef85b LP |
547 | int unit_add_node_link(Unit *u, const char *what, bool wants); |
548 | ||
6e392c9c | 549 | int unit_coldplug(Unit *u, Hashmap *deferred_work); |
cca098b0 | 550 | |
44b601bc | 551 | void unit_status_printf(Unit *u, const char *status, const char *unit_status_msg_format) _printf_(3, 0); |
9e58ff9c | 552 | |
45fb0699 LP |
553 | bool unit_need_daemon_reload(Unit *u); |
554 | ||
fdf20a31 | 555 | void unit_reset_failed(Unit *u); |
5632e374 | 556 | |
a7f241db | 557 | Unit *unit_following(Unit *u); |
eeaedb7c | 558 | int unit_following_set(Unit *u, Set **s); |
a7f241db | 559 | |
9444b1f2 LP |
560 | const char *unit_slice_name(Unit *u); |
561 | ||
44a6b1b6 ZJS |
562 | bool unit_stop_pending(Unit *u) _pure_; |
563 | bool unit_inactive_or_pending(Unit *u) _pure_; | |
31afa0a4 | 564 | bool unit_active_or_pending(Unit *u); |
18ffdfda | 565 | |
bba34eed LP |
566 | int unit_add_default_target_dependency(Unit *u, Unit *target); |
567 | ||
41f9172f LP |
568 | char *unit_default_cgroup_path(Unit *u); |
569 | ||
3ecaa09b LP |
570 | void unit_start_on_failure(Unit *u); |
571 | void unit_trigger_notify(Unit *u); | |
c0daa706 | 572 | |
a4375746 | 573 | UnitFileState unit_get_unit_file_state(Unit *u); |
d2dc52db | 574 | int unit_get_unit_file_preset(Unit *u); |
a4375746 | 575 | |
57020a3a LP |
576 | Unit* unit_ref_set(UnitRef *ref, Unit *u); |
577 | void unit_ref_unset(UnitRef *ref); | |
578 | ||
579 | #define UNIT_DEREF(ref) ((ref).unit) | |
9444b1f2 | 580 | #define UNIT_ISSET(ref) (!!(ref).unit) |
57020a3a | 581 | |
598459ce | 582 | int unit_patch_contexts(Unit *u); |
e06c73cc | 583 | |
44a6b1b6 | 584 | ExecContext *unit_get_exec_context(Unit *u) _pure_; |
718db961 | 585 | KillContext *unit_get_kill_context(Unit *u) _pure_; |
4ad49000 | 586 | CGroupContext *unit_get_cgroup_context(Unit *u) _pure_; |
598459ce | 587 | |
613b411c LP |
588 | ExecRuntime *unit_get_exec_runtime(Unit *u) _pure_; |
589 | ||
590 | int unit_setup_exec_runtime(Unit *u); | |
3ef63c31 | 591 | |
8e2af478 | 592 | int unit_write_drop_in(Unit *u, UnitSetPropertiesMode mode, const char *name, const char *data); |
44b601bc | 593 | int unit_write_drop_in_format(Unit *u, UnitSetPropertiesMode mode, const char *name, const char *format, ...) _printf_(4,5); |
b9ec9359 LP |
594 | |
595 | int unit_write_drop_in_private(Unit *u, UnitSetPropertiesMode mode, const char *name, const char *data); | |
44b601bc | 596 | int unit_write_drop_in_private_format(Unit *u, UnitSetPropertiesMode mode, const char *name, const char *format, ...) _printf_(4,5); |
b9ec9359 | 597 | |
8e2af478 | 598 | int unit_remove_drop_in(Unit *u, UnitSetPropertiesMode mode, const char *name); |
71645aca | 599 | |
db2cb23b | 600 | int unit_kill_context(Unit *u, KillContext *c, KillOperation k, pid_t main_pid, pid_t control_pid, bool main_pid_alien); |
cd2086fe | 601 | |
c2756a68 LP |
602 | int unit_make_transient(Unit *u); |
603 | ||
a57f7e2c LP |
604 | int unit_require_mounts_for(Unit *u, const char *path); |
605 | ||
44a6b1b6 ZJS |
606 | const char *unit_active_state_to_string(UnitActiveState i) _const_; |
607 | UnitActiveState unit_active_state_from_string(const char *s) _pure_; | |
94f04347 | 608 | |
e8e581bf ZJS |
609 | /* Macros which append UNIT= or USER_UNIT= to the message */ |
610 | ||
79008bdd LP |
611 | #define log_unit_full_errno(unit, level, error, ...) log_object_internal(level, error, __FILE__, __LINE__, __func__, getpid() == 1 ? "UNIT=" : "USER_UNIT=", unit, __VA_ARGS__) |
612 | #define log_unit_full(unit, level, ...) log_unit_full_errno(unit, level, 0, __VA_ARGS__) | |
086891e5 | 613 | |
79008bdd LP |
614 | #define log_unit_debug(unit, ...) log_unit_full(unit, LOG_DEBUG, __VA_ARGS__) |
615 | #define log_unit_info(unit, ...) log_unit_full(unit, LOG_INFO, __VA_ARGS__) | |
616 | #define log_unit_notice(unit, ...) log_unit_full(unit, LOG_NOTICE, __VA_ARGS__) | |
617 | #define log_unit_warning(unit, ...) log_unit_full(unit, LOG_WARNING, __VA_ARGS__) | |
618 | #define log_unit_error(unit, ...) log_unit_full(unit, LOG_ERR, __VA_ARGS__) | |
bbc9006e | 619 | |
b2dc4e44 MS |
620 | #define log_unit_debug_errno(unit, error, ...) log_unit_full_errno(unit, LOG_DEBUG, error, __VA_ARGS__) |
621 | #define log_unit_info_errno(unit, error, ...) log_unit_full_errno(unit, LOG_INFO, error, __VA_ARGS__) | |
622 | #define log_unit_notice_errno(unit, error, ...) log_unit_full_errno(unit, LOG_NOTICE, error, __VA_ARGS__) | |
623 | #define log_unit_warning_errno(unit, error, ...) log_unit_full_errno(unit, LOG_WARNING, error, __VA_ARGS__) | |
624 | #define log_unit_error_errno(unit, error, ...) log_unit_full_errno(unit, LOG_ERR, error, __VA_ARGS__) | |
625 | ||
e2cc6eca | 626 | #define log_unit_struct(unit, level, ...) log_struct(level, getpid() == 1 ? "UNIT=%s" : "USER_UNIT=%s", unit, __VA_ARGS__) |
b2dc4e44 | 627 | #define log_unit_struct_errno(unit, level, error, ...) log_struct_errno(level, error, getpid() == 1 ? "UNIT=%s" : "USER_UNIT=%s", unit, __VA_ARGS__) |