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db9ecf05 | 1 | /* SPDX-License-Identifier: LGPL-2.1-or-later */ |
c2f1db8f | 2 | #pragma once |
87f0e418 | 3 | |
9e615fa3 | 4 | #include <errno.h> |
87f0e418 LP |
5 | #include <stdbool.h> |
6 | #include <stdlib.h> | |
84ebe6f0 | 7 | #include <sys/socket.h> |
bbc9006e | 8 | #include <unistd.h> |
87f0e418 | 9 | |
2d3b784d ZJS |
10 | #include "sd-id128.h" |
11 | ||
9e615fa3 LB |
12 | /* Circular dependency with manager.h, needs to be defined before local includes */ |
13 | typedef enum UnitMountDependencyType { | |
14 | UNIT_MOUNT_WANTS, | |
15 | UNIT_MOUNT_REQUIRES, | |
16 | _UNIT_MOUNT_DEPENDENCY_TYPE_MAX, | |
17 | _UNIT_MOUNT_DEPENDENCY_TYPE_INVALID = -EINVAL, | |
18 | } UnitMountDependencyType; | |
19 | ||
6a48d82f | 20 | #include "bpf-program.h" |
7901288a | 21 | #include "cgroup.h" |
134e56dc | 22 | #include "condition.h" |
87a47f99 | 23 | #include "emergency-action.h" |
e77e07f6 | 24 | #include "install.h" |
71d35b6b | 25 | #include "list.h" |
7901288a | 26 | #include "pidref.h" |
fab34748 | 27 | #include "set.h" |
7901288a | 28 | #include "show-status.h" |
5cfa33e0 | 29 | #include "unit-file.h" |
87f0e418 | 30 | |
57b7a260 FS |
31 | typedef struct UnitRef UnitRef; |
32 | ||
db2cb23b UTL |
33 | typedef enum KillOperation { |
34 | KILL_TERMINATE, | |
1d98fef1 | 35 | KILL_TERMINATE_AND_LOG, |
a232ebcc | 36 | KILL_RESTART, |
db2cb23b | 37 | KILL_KILL, |
c87700a1 | 38 | KILL_WATCHDOG, |
4940c0b0 | 39 | _KILL_OPERATION_MAX, |
2d93c20e | 40 | _KILL_OPERATION_INVALID = -EINVAL, |
db2cb23b UTL |
41 | } KillOperation; |
42 | ||
5afe510c LP |
43 | typedef enum CollectMode { |
44 | COLLECT_INACTIVE, | |
45 | COLLECT_INACTIVE_OR_FAILED, | |
46 | _COLLECT_MODE_MAX, | |
2d93c20e | 47 | _COLLECT_MODE_INVALID = -EINVAL, |
5afe510c LP |
48 | } CollectMode; |
49 | ||
87f0e418 | 50 | static inline bool UNIT_IS_ACTIVE_OR_RELOADING(UnitActiveState t) { |
3742095b | 51 | return IN_SET(t, UNIT_ACTIVE, UNIT_RELOADING); |
87f0e418 LP |
52 | } |
53 | ||
54 | static inline bool UNIT_IS_ACTIVE_OR_ACTIVATING(UnitActiveState t) { | |
3742095b | 55 | return IN_SET(t, UNIT_ACTIVE, UNIT_ACTIVATING, UNIT_RELOADING); |
87f0e418 LP |
56 | } |
57 | ||
58 | static inline bool UNIT_IS_INACTIVE_OR_DEACTIVATING(UnitActiveState t) { | |
3742095b | 59 | return IN_SET(t, UNIT_INACTIVE, UNIT_FAILED, UNIT_DEACTIVATING); |
6124958c LP |
60 | } |
61 | ||
fdf20a31 | 62 | static inline bool UNIT_IS_INACTIVE_OR_FAILED(UnitActiveState t) { |
3742095b | 63 | return IN_SET(t, UNIT_INACTIVE, UNIT_FAILED); |
87f0e418 LP |
64 | } |
65 | ||
0377cd29 | 66 | static inline bool UNIT_IS_LOAD_COMPLETE(UnitLoadState t) { |
2d51ea22 | 67 | return t >= 0 && t < _UNIT_LOAD_STATE_MAX && !IN_SET(t, UNIT_STUB, UNIT_MERGED); |
0377cd29 LP |
68 | } |
69 | ||
dc4c5871 MY |
70 | static inline bool UNIT_IS_LOAD_ERROR(UnitLoadState t) { |
71 | return IN_SET(t, UNIT_NOT_FOUND, UNIT_BAD_SETTING, UNIT_ERROR); | |
72 | } | |
73 | ||
eef85c4a LP |
74 | /* Stores the 'reason' a dependency was created as a bit mask, i.e. due to which configuration source it came to be. We |
75 | * use this so that we can selectively flush out parts of dependencies again. Note that the same dependency might be | |
76 | * created as a result of multiple "reasons", hence the bitmask. */ | |
77 | typedef enum UnitDependencyMask { | |
5238e957 | 78 | /* Configured directly by the unit file, .wants/.requires symlink or drop-in, or as an immediate result of a |
eef85c4a LP |
79 | * non-dependency option configured that way. */ |
80 | UNIT_DEPENDENCY_FILE = 1 << 0, | |
81 | ||
82 | /* As unconditional implicit dependency (not affected by unit configuration — except by the unit name and | |
83 | * type) */ | |
84 | UNIT_DEPENDENCY_IMPLICIT = 1 << 1, | |
85 | ||
86 | /* A dependency effected by DefaultDependencies=yes. Note that dependencies marked this way are conceptually | |
87 | * just a subset of UNIT_DEPENDENCY_FILE, as DefaultDependencies= is itself a unit file setting that can only | |
88 | * be set in unit files. We make this two separate bits only to help debugging how dependencies came to be. */ | |
89 | UNIT_DEPENDENCY_DEFAULT = 1 << 2, | |
90 | ||
91 | /* A dependency created from udev rules */ | |
92 | UNIT_DEPENDENCY_UDEV = 1 << 3, | |
93 | ||
94 | /* A dependency created because of some unit's RequiresMountsFor= setting */ | |
95 | UNIT_DEPENDENCY_PATH = 1 << 4, | |
96 | ||
87c734ee FB |
97 | /* A dependency initially configured from the mount unit file however the dependency will be updated |
98 | * from /proc/self/mountinfo as soon as the kernel will make the entry for that mount available in | |
99 | * the /proc file */ | |
100 | UNIT_DEPENDENCY_MOUNT_FILE = 1 << 5, | |
101 | ||
102 | /* A dependency created or updated because of data read from /proc/self/mountinfo */ | |
103 | UNIT_DEPENDENCY_MOUNTINFO = 1 << 6, | |
49267b1b | 104 | |
eef85c4a | 105 | /* A dependency created because of data read from /proc/swaps and no other configuration source */ |
87c734ee | 106 | UNIT_DEPENDENCY_PROC_SWAP = 1 << 7, |
eef85c4a | 107 | |
899acf5c | 108 | /* A dependency for units in slices assigned by directly setting Slice= */ |
87c734ee | 109 | UNIT_DEPENDENCY_SLICE_PROPERTY = 1 << 8, |
899acf5c | 110 | |
87c734ee | 111 | _UNIT_DEPENDENCY_MASK_FULL = (1 << 9) - 1, |
eef85c4a LP |
112 | } UnitDependencyMask; |
113 | ||
114 | /* The Unit's dependencies[] hashmaps use this structure as value. It has the same size as a void pointer, and thus can | |
115 | * be stored directly as hashmap value, without any indirection. Note that this stores two masks, as both the origin | |
116 | * and the destination of a dependency might have created it. */ | |
117 | typedef union UnitDependencyInfo { | |
118 | void *data; | |
119 | struct { | |
120 | UnitDependencyMask origin_mask:16; | |
121 | UnitDependencyMask destination_mask:16; | |
122 | } _packed_; | |
123 | } UnitDependencyInfo; | |
124 | ||
48b92b37 LB |
125 | /* Store information about why a unit was activated. |
126 | * We start with trigger units (.path/.timer), eventually it will be expanded to include more metadata. */ | |
127 | typedef struct ActivationDetails { | |
128 | unsigned n_ref; | |
129 | UnitType trigger_unit_type; | |
130 | char *trigger_unit_name; | |
131 | } ActivationDetails; | |
132 | ||
133 | /* For casting an activation event into the various unit-specific types */ | |
134 | #define DEFINE_ACTIVATION_DETAILS_CAST(UPPERCASE, MixedCase, UNIT_TYPE) \ | |
135 | static inline MixedCase* UPPERCASE(ActivationDetails *a) { \ | |
136 | if (_unlikely_(!a || a->trigger_unit_type != UNIT_##UNIT_TYPE)) \ | |
137 | return NULL; \ | |
138 | \ | |
139 | return (MixedCase*) a; \ | |
140 | } | |
141 | ||
142 | /* For casting the various unit types into a unit */ | |
143 | #define ACTIVATION_DETAILS(u) \ | |
144 | ({ \ | |
145 | typeof(u) _u_ = (u); \ | |
146 | ActivationDetails *_w_ = _u_ ? &(_u_)->meta : NULL; \ | |
147 | _w_; \ | |
148 | }) | |
149 | ||
150 | ActivationDetails *activation_details_new(Unit *trigger_unit); | |
151 | ActivationDetails *activation_details_ref(ActivationDetails *p); | |
152 | ActivationDetails *activation_details_unref(ActivationDetails *p); | |
153 | void activation_details_serialize(ActivationDetails *p, FILE *f); | |
154 | int activation_details_deserialize(const char *key, const char *value, ActivationDetails **info); | |
155 | int activation_details_append_env(ActivationDetails *info, char ***strv); | |
156 | int activation_details_append_pair(ActivationDetails *info, char ***strv); | |
157 | DEFINE_TRIVIAL_CLEANUP_FUNC(ActivationDetails*, activation_details_unref); | |
158 | ||
159 | typedef struct ActivationDetailsVTable { | |
160 | /* How much memory does an object of this activation type need */ | |
161 | size_t object_size; | |
162 | ||
163 | /* This should reset all type-specific variables. This should not allocate memory, and is called | |
164 | * with zero-initialized data. It should hence only initialize variables that need to be set != 0. */ | |
165 | void (*init)(ActivationDetails *info, Unit *trigger_unit); | |
166 | ||
167 | /* This should free all type-specific variables. It should be idempotent. */ | |
168 | void (*done)(ActivationDetails *info); | |
169 | ||
170 | /* This should serialize all type-specific variables. */ | |
171 | void (*serialize)(ActivationDetails *info, FILE *f); | |
172 | ||
173 | /* This should deserialize all type-specific variables, one at a time. */ | |
174 | int (*deserialize)(const char *key, const char *value, ActivationDetails **info); | |
175 | ||
176 | /* This should format the type-specific variables for the env block of the spawned service, | |
177 | * and return the number of added items. */ | |
178 | int (*append_env)(ActivationDetails *info, char ***strv); | |
179 | ||
180 | /* This should append type-specific variables as key/value pairs for the D-Bus property of the job, | |
181 | * and return the number of added pairs. */ | |
182 | int (*append_pair)(ActivationDetails *info, char ***strv); | |
183 | } ActivationDetailsVTable; | |
184 | ||
185 | extern const ActivationDetailsVTable * const activation_details_vtable[_UNIT_TYPE_MAX]; | |
186 | ||
187 | static inline const ActivationDetailsVTable* ACTIVATION_DETAILS_VTABLE(const ActivationDetails *a) { | |
188 | assert(a); | |
189 | assert(a->trigger_unit_type < _UNIT_TYPE_MAX); | |
190 | ||
191 | return activation_details_vtable[a->trigger_unit_type]; | |
192 | } | |
193 | ||
15ed3c3a LP |
194 | /* Newer LLVM versions don't like implicit casts from large pointer types to smaller enums, hence let's add |
195 | * explicit type-safe helpers for that. */ | |
196 | static inline UnitDependency UNIT_DEPENDENCY_FROM_PTR(const void *p) { | |
197 | return PTR_TO_INT(p); | |
198 | } | |
199 | ||
200 | static inline void* UNIT_DEPENDENCY_TO_PTR(UnitDependency d) { | |
201 | return INT_TO_PTR(d); | |
202 | } | |
203 | ||
ef734fd6 LP |
204 | #include "job.h" |
205 | ||
a016b922 LP |
206 | struct UnitRef { |
207 | /* Keeps tracks of references to a unit. This is useful so | |
208 | * that we can merge two units if necessary and correct all | |
209 | * references to them */ | |
210 | ||
7f7d01ed ZJS |
211 | Unit *source, *target; |
212 | LIST_FIELDS(UnitRef, refs_by_target); | |
a016b922 LP |
213 | }; |
214 | ||
9cc54544 | 215 | /* The generic, dynamic definition of the unit */ |
57b7a260 | 216 | typedef struct Unit { |
87f0e418 | 217 | Manager *manager; |
23a177ef | 218 | |
87f0e418 LP |
219 | UnitType type; |
220 | UnitLoadState load_state; | |
23a177ef | 221 | Unit *merged_into; |
87f0e418 | 222 | |
4562c355 | 223 | char *id; /* The one special name that we use for identification */ |
9e2f7c11 | 224 | char *instance; |
87f0e418 | 225 | |
4562c355 | 226 | Set *aliases; /* All the other names. */ |
87f0e418 | 227 | |
15ed3c3a LP |
228 | /* For each dependency type we can look up another Hashmap with this, whose key is a Unit* object, |
229 | * and whose value encodes why the dependency exists, using the UnitDependencyInfo type. i.e. a | |
230 | * Hashmap(UnitDependency → Hashmap(Unit* → UnitDependencyInfo)) */ | |
231 | Hashmap *dependencies; | |
eef85c4a | 232 | |
9e615fa3 LB |
233 | /* Similar, for RequiresMountsFor= and WantsMountsFor= path dependencies. The key is the path, the |
234 | * value the UnitDependencyInfo type */ | |
235 | Hashmap *mounts_for[_UNIT_MOUNT_DEPENDENCY_TYPE_MAX]; | |
7c8fa05c | 236 | |
87f0e418 | 237 | char *description; |
49dbfa7b | 238 | char **documentation; |
faf919f1 | 239 | |
23e9a7dd LP |
240 | /* The SELinux context used for checking access to this unit read off the unit file at load time (do |
241 | * not confuse with the selinux_context field in ExecContext which is the SELinux context we'll set | |
242 | * for processes) */ | |
243 | char *access_selinux_context; | |
244 | ||
6be1e7d5 | 245 | char *fragment_path; /* if loaded from a config file this is the primary path to it */ |
1b64d026 | 246 | char *source_path; /* if converted, the source file */ |
ae7a7182 | 247 | char **dropin_paths; |
f78f265f | 248 | |
c2911d48 | 249 | usec_t fragment_not_found_timestamp_hash; |
45fb0699 | 250 | usec_t fragment_mtime; |
1b64d026 | 251 | usec_t source_mtime; |
ae7a7182 | 252 | usec_t dropin_mtime; |
87f0e418 | 253 | |
4f4afc88 LP |
254 | /* If this is a transient unit we are currently writing, this is where we are writing it to */ |
255 | FILE *transient_file; | |
256 | ||
8c2524c7 | 257 | /* Freezer state */ |
af1e3365 | 258 | sd_bus_message *pending_freezer_invocation; |
8c2524c7 ZJS |
259 | FreezerState freezer_state; |
260 | ||
261 | /* Job timeout and action to take */ | |
262 | EmergencyAction job_timeout_action; | |
263 | usec_t job_timeout; | |
264 | usec_t job_running_timeout; | |
265 | char *job_timeout_reboot_arg; | |
266 | ||
e0209d83 | 267 | /* If there is something to do with this unit, then this is the installed job for it */ |
87f0e418 LP |
268 | Job *job; |
269 | ||
e0209d83 MS |
270 | /* JOB_NOP jobs are special and can be installed without disturbing the real job. */ |
271 | Job *nop_job; | |
272 | ||
bbc29086 DM |
273 | /* The slot used for watching NameOwnerChanged signals */ |
274 | sd_bus_slot *match_bus_slot; | |
a5a8776a | 275 | sd_bus_slot *get_name_owner_slot; |
bbc29086 | 276 | |
05a98afd LP |
277 | /* References to this unit from clients */ |
278 | sd_bus_track *bus_track; | |
279 | char **deserialized_refs; | |
280 | ||
57020a3a | 281 | /* References to this */ |
7f7d01ed | 282 | LIST_HEAD(UnitRef, refs_by_target); |
57020a3a | 283 | |
52661efd LP |
284 | /* Conditions to check */ |
285 | LIST_HEAD(Condition, conditions); | |
59fccdc5 | 286 | LIST_HEAD(Condition, asserts); |
52661efd | 287 | |
90bbc946 | 288 | dual_timestamp condition_timestamp; |
59fccdc5 | 289 | dual_timestamp assert_timestamp; |
90bbc946 | 290 | |
a483fb59 LP |
291 | /* Updated whenever the low-level state changes */ |
292 | dual_timestamp state_change_timestamp; | |
293 | ||
294 | /* Updated whenever the (high-level) active state enters or leaves the active or inactive states */ | |
63983207 LP |
295 | dual_timestamp inactive_exit_timestamp; |
296 | dual_timestamp active_enter_timestamp; | |
297 | dual_timestamp active_exit_timestamp; | |
298 | dual_timestamp inactive_enter_timestamp; | |
87f0e418 | 299 | |
ef734fd6 | 300 | /* Per type list */ |
ac155bb8 | 301 | LIST_FIELDS(Unit, units_by_type); |
c1e1601e | 302 | |
701cc384 | 303 | /* Load queue */ |
ac155bb8 | 304 | LIST_FIELDS(Unit, load_queue); |
701cc384 | 305 | |
c1e1601e | 306 | /* D-Bus queue */ |
ac155bb8 | 307 | LIST_FIELDS(Unit, dbus_queue); |
23a177ef LP |
308 | |
309 | /* Cleanup queue */ | |
ac155bb8 | 310 | LIST_FIELDS(Unit, cleanup_queue); |
9d58f1db | 311 | |
701cc384 | 312 | /* GC queue */ |
ac155bb8 | 313 | LIST_FIELDS(Unit, gc_queue); |
701cc384 | 314 | |
4ad49000 | 315 | /* CGroup realize members queue */ |
91a6073e | 316 | LIST_FIELDS(Unit, cgroup_realize_queue); |
4ad49000 | 317 | |
09e24654 LP |
318 | /* cgroup empty queue */ |
319 | LIST_FIELDS(Unit, cgroup_empty_queue); | |
320 | ||
afcfaa69 LP |
321 | /* cgroup OOM queue */ |
322 | LIST_FIELDS(Unit, cgroup_oom_queue); | |
323 | ||
19496554 MS |
324 | /* Target dependencies queue */ |
325 | LIST_FIELDS(Unit, target_deps_queue); | |
326 | ||
0bc488c9 | 327 | /* Queue of units with StopWhenUnneeded= set that shall be checked for clean-up. */ |
a3c1168a LP |
328 | LIST_FIELDS(Unit, stop_when_unneeded_queue); |
329 | ||
0bc488c9 LP |
330 | /* Queue of units that have an Uphold= dependency from some other unit, and should be checked for starting */ |
331 | LIST_FIELDS(Unit, start_when_upheld_queue); | |
332 | ||
56c59592 LP |
333 | /* Queue of units that have a BindTo= dependency on some other unit, and should possibly be shut down */ |
334 | LIST_FIELDS(Unit, stop_when_bound_queue); | |
335 | ||
6ac62d61 LP |
336 | /* Queue of units that should be checked if they can release resources now */ |
337 | LIST_FIELDS(Unit, release_resources_queue); | |
338 | ||
495e75ed LP |
339 | /* PIDs we keep an eye on. Note that a unit might have many more, but these are the ones we care |
340 | * enough about to process SIGCHLD for */ | |
341 | Set *pids; /* → PidRef* */ | |
a911bb9a | 342 | |
62a76913 LP |
343 | /* Used in SIGCHLD and sd_notify() message event invocation logic to avoid that we dispatch the same event |
344 | * multiple times on the same unit. */ | |
345 | unsigned sigchldgen; | |
346 | unsigned notifygen; | |
36f20ae3 | 347 | |
701cc384 | 348 | /* Used during GC sweeps */ |
eced69b3 | 349 | unsigned gc_marker; |
701cc384 | 350 | |
8821a00f LP |
351 | /* Error code when we didn't manage to load the unit (negative) */ |
352 | int load_error; | |
353 | ||
6bf0f408 | 354 | /* Put a ratelimit on unit starting */ |
7bf081a1 | 355 | RateLimit start_ratelimit; |
87a47f99 | 356 | EmergencyAction start_limit_action; |
53c35a76 | 357 | |
ff68472a ZJS |
358 | /* The unit has been marked for reload, restart, etc. Stored as 1u << marker1 | 1u << marker2. */ |
359 | unsigned markers; | |
360 | ||
7af67e9a LP |
361 | /* What to do on failure or success */ |
362 | EmergencyAction success_action, failure_action; | |
363 | int success_action_exit_status, failure_action_exit_status; | |
6bf0f408 LP |
364 | char *reboot_arg; |
365 | ||
0bc488c9 LP |
366 | /* Make sure we never enter endless loops with the StopWhenUnneeded=, BindsTo=, Uphold= logic */ |
367 | RateLimit auto_start_stop_ratelimit; | |
7223d500 | 368 | sd_event_source *auto_start_stop_event_source; |
bea355da | 369 | |
00d9ef85 LP |
370 | /* Reference to a specific UID/GID */ |
371 | uid_t ref_uid; | |
372 | gid_t ref_gid; | |
373 | ||
d2dc52db | 374 | /* Cached unit file state and preset */ |
a4375746 | 375 | UnitFileState unit_file_state; |
e77e07f6 | 376 | PresetAction unit_file_preset; |
a4375746 | 377 | |
50be4f4a LP |
378 | /* Low-priority event source which is used to remove watched PIDs that have gone away, and subscribe to any new |
379 | * ones which might have appeared. */ | |
380 | sd_event_source *rewatch_pids_event_source; | |
381 | ||
294446dc LP |
382 | /* How to start OnSuccess=/OnFailure= units */ |
383 | JobMode on_success_job_mode; | |
7c52a17b ZJS |
384 | JobMode on_failure_job_mode; |
385 | ||
48b92b37 LB |
386 | /* If the job had a specific trigger that needs to be advertised (eg: a path unit), store it. */ |
387 | ActivationDetails *activation_details; | |
388 | ||
5afe510c LP |
389 | /* Tweaking the GC logic */ |
390 | CollectMode collect_mode; | |
391 | ||
4b58153d LP |
392 | /* The current invocation ID */ |
393 | sd_id128_t invocation_id; | |
394 | char invocation_id_string[SD_ID128_STRING_MAX]; /* useful when logging */ | |
395 | ||
9d58f1db LP |
396 | /* Garbage collect us we nobody wants or requires us anymore */ |
397 | bool stop_when_unneeded; | |
398 | ||
35b8ca3a | 399 | /* Create default dependencies */ |
a40eb732 LP |
400 | bool default_dependencies; |
401 | ||
559214cb LB |
402 | /* Configure so that the unit survives a system transition without stopping/starting. */ |
403 | bool survive_final_kill_signal; | |
404 | ||
b5e9dba8 LP |
405 | /* Refuse manual starting, allow starting only indirectly via dependency. */ |
406 | bool refuse_manual_start; | |
407 | ||
408 | /* Don't allow the user to stop this unit manually, allow stopping only indirectly via dependency. */ | |
409 | bool refuse_manual_stop; | |
410 | ||
2528a7a6 LP |
411 | /* Allow isolation requests */ |
412 | bool allow_isolate; | |
413 | ||
c8f4d764 LP |
414 | /* Ignore this unit when isolating */ |
415 | bool ignore_on_isolate; | |
416 | ||
49f43d5f | 417 | /* Did the last condition check succeed? */ |
90bbc946 | 418 | bool condition_result; |
59fccdc5 | 419 | bool assert_result; |
90bbc946 | 420 | |
c2756a68 LP |
421 | /* Is this a transient unit? */ |
422 | bool transient; | |
423 | ||
f5869324 LP |
424 | /* Is this a unit that is always running and cannot be stopped? */ |
425 | bool perpetual; | |
426 | ||
66fa4bdd | 427 | /* Booleans indicating membership of this unit in the various queues */ |
9d58f1db LP |
428 | bool in_load_queue:1; |
429 | bool in_dbus_queue:1; | |
430 | bool in_cleanup_queue:1; | |
701cc384 | 431 | bool in_gc_queue:1; |
91a6073e | 432 | bool in_cgroup_realize_queue:1; |
09e24654 | 433 | bool in_cgroup_empty_queue:1; |
afcfaa69 | 434 | bool in_cgroup_oom_queue:1; |
19496554 | 435 | bool in_target_deps_queue:1; |
a3c1168a | 436 | bool in_stop_when_unneeded_queue:1; |
0bc488c9 | 437 | bool in_start_when_upheld_queue:1; |
56c59592 | 438 | bool in_stop_when_bound_queue:1; |
6ac62d61 | 439 | bool in_release_resources_queue:1; |
701cc384 | 440 | |
9d58f1db | 441 | bool sent_dbus_new_signal:1; |
6c073082 | 442 | |
8c2524c7 ZJS |
443 | bool job_running_timeout_set:1; |
444 | ||
cd6d0a45 | 445 | bool in_audit:1; |
adefcf28 | 446 | bool on_console:1; |
a57f7e2c | 447 | |
6bf0f408 LP |
448 | bool start_limit_hit:1; |
449 | ||
f78f265f | 450 | /* Did we already invoke unit_coldplug() for this unit? */ |
f8a30ce5 | 451 | bool coldplugged:1; |
05a98afd LP |
452 | |
453 | /* For transient units: whether to add a bus track reference after creating the unit */ | |
454 | bool bus_track_add:1; | |
d3070fbd LP |
455 | |
456 | /* Remember which unit state files we created */ | |
457 | bool exported_invocation_id:1; | |
458 | bool exported_log_level_max:1; | |
459 | bool exported_log_extra_fields:1; | |
5ac1530e ZJS |
460 | bool exported_log_ratelimit_interval:1; |
461 | bool exported_log_ratelimit_burst:1; | |
2e59b241 LP |
462 | |
463 | /* When writing transient unit files, stores which section we stored last. If < 0, we didn't write any yet. If | |
464 | * == 0 we are in the [Unit] section, if > 0 we are in the unit type-specific section. */ | |
845d247a | 465 | signed int last_section_private:2; |
57b7a260 | 466 | } Unit; |
87f0e418 | 467 | |
57b7a260 | 468 | typedef struct UnitStatusMessageFormats { |
c6918296 MS |
469 | const char *starting_stopping[2]; |
470 | const char *finished_start_job[_JOB_RESULT_MAX]; | |
471 | const char *finished_stop_job[_JOB_RESULT_MAX]; | |
eda0cbf0 ZJS |
472 | /* If this entry is present, it'll be called to provide a context-dependent format string, |
473 | * or NULL to fall back to finished_{start,stop}_job; if those are NULL too, fall back to generic. */ | |
474 | const char *(*finished_job)(Unit *u, JobType t, JobResult result); | |
57b7a260 | 475 | } UnitStatusMessageFormats; |
c6918296 | 476 | |
2e59b241 LP |
477 | /* Flags used when writing drop-in files or transient unit files */ |
478 | typedef enum UnitWriteFlags { | |
479 | /* Write a runtime unit file or drop-in (i.e. one below /run) */ | |
f3af6290 | 480 | UNIT_RUNTIME = 1 << 0, |
2e59b241 LP |
481 | |
482 | /* Write a persistent drop-in (i.e. one below /etc) */ | |
f3af6290 | 483 | UNIT_PERSISTENT = 1 << 1, |
2e59b241 LP |
484 | |
485 | /* Place this item in the per-unit-type private section, instead of [Unit] */ | |
f3af6290 | 486 | UNIT_PRIVATE = 1 << 2, |
2e59b241 | 487 | |
f3af6290 ZJS |
488 | /* Apply specifier escaping */ |
489 | UNIT_ESCAPE_SPECIFIERS = 1 << 3, | |
24536beb | 490 | |
f3af6290 ZJS |
491 | /* Escape elements of ExecStart= syntax, incl. prevention of variable expansion */ |
492 | UNIT_ESCAPE_EXEC_SYNTAX_ENV = 1 << 4, | |
2e59b241 | 493 | |
8c41640a ZJS |
494 | /* Escape elements of ExecStart=: syntax (no variable expansion) */ |
495 | UNIT_ESCAPE_EXEC_SYNTAX = 1 << 5, | |
2e59b241 LP |
496 | |
497 | /* Apply C escaping before writing */ | |
8c41640a | 498 | UNIT_ESCAPE_C = 1 << 6, |
2e59b241 LP |
499 | } UnitWriteFlags; |
500 | ||
501 | /* Returns true if neither persistent, nor runtime storage is requested, i.e. this is a check invocation only */ | |
6529ccfa LP |
502 | static inline bool UNIT_WRITE_FLAGS_NOOP(UnitWriteFlags flags) { |
503 | return (flags & (UNIT_RUNTIME|UNIT_PERSISTENT)) == 0; | |
504 | } | |
8e2af478 | 505 | |
57b7a260 FS |
506 | #include "kill.h" |
507 | ||
9cc54544 | 508 | /* The static const, immutable data about a specific unit type */ |
57b7a260 | 509 | typedef struct UnitVTable { |
7d17cfbc MS |
510 | /* How much memory does an object of this unit type need */ |
511 | size_t object_size; | |
512 | ||
3ef63c31 LP |
513 | /* If greater than 0, the offset into the object where |
514 | * ExecContext is found, if the unit type has that */ | |
515 | size_t exec_context_offset; | |
516 | ||
4ad49000 LP |
517 | /* If greater than 0, the offset into the object where |
518 | * CGroupContext is found, if the unit type has that */ | |
519 | size_t cgroup_context_offset; | |
520 | ||
718db961 LP |
521 | /* If greater than 0, the offset into the object where |
522 | * KillContext is found, if the unit type has that */ | |
523 | size_t kill_context_offset; | |
524 | ||
9cc54544 LP |
525 | /* If greater than 0, the offset into the object where the pointer to ExecRuntime is found, if |
526 | * the unit type has that */ | |
613b411c LP |
527 | size_t exec_runtime_offset; |
528 | ||
9cc54544 LP |
529 | /* If greater than 0, the offset into the object where the pointer to CGroupRuntime is found, if the |
530 | * unit type has that */ | |
531 | size_t cgroup_runtime_offset; | |
532 | ||
ee33e53a | 533 | /* The name of the configuration file section with the private settings of this unit */ |
4ad49000 | 534 | const char *private_section; |
71645aca | 535 | |
f975e971 LP |
536 | /* Config file sections this unit type understands, separated |
537 | * by NUL chars */ | |
538 | const char *sections; | |
539 | ||
e537352b | 540 | /* This should reset all type-specific variables. This should |
a16e1123 LP |
541 | * not allocate memory, and is called with zero-initialized |
542 | * data. It should hence only initialize variables that need | |
543 | * to be set != 0. */ | |
e537352b LP |
544 | void (*init)(Unit *u); |
545 | ||
a16e1123 LP |
546 | /* This should free all type-specific variables. It should be |
547 | * idempotent. */ | |
548 | void (*done)(Unit *u); | |
549 | ||
e537352b LP |
550 | /* Actually load data from disk. This may fail, and should set |
551 | * load_state to UNIT_LOADED, UNIT_MERGED or leave it at | |
552 | * UNIT_STUB if no configuration could be found. */ | |
553 | int (*load)(Unit *u); | |
554 | ||
f0831ed2 | 555 | /* During deserialization we only record the intended state to return to. With coldplug() we actually put the |
a95c0505 LP |
556 | * deserialized state in effect. This is where unit_notify() should be called to start things up. Note that |
557 | * this callback is invoked *before* we leave the reloading state of the manager, i.e. *before* we consider the | |
558 | * reloading to be complete. Thus, this callback should just restore the exact same state for any unit that was | |
559 | * in effect before the reload, i.e. units should not catch up with changes happened during the reload. That's | |
560 | * what catchup() below is for. */ | |
be847e82 | 561 | int (*coldplug)(Unit *u); |
87f0e418 | 562 | |
a95c0505 LP |
563 | /* This is called shortly after all units' coldplug() call was invoked, and *after* the manager left the |
564 | * reloading state. It's supposed to catch up with state changes due to external events we missed so far (for | |
565 | * example because they took place while we were reloading/reexecing) */ | |
f0831ed2 LP |
566 | void (*catchup)(Unit *u); |
567 | ||
87f0e418 LP |
568 | void (*dump)(Unit *u, FILE *f, const char *prefix); |
569 | ||
570 | int (*start)(Unit *u); | |
571 | int (*stop)(Unit *u); | |
572 | int (*reload)(Unit *u); | |
573 | ||
380dc8b0 LP |
574 | /* Clear out the various runtime/state/cache/logs/configuration data */ |
575 | int (*clean)(Unit *u, ExecCleanMask m); | |
576 | ||
16b6af6a AV |
577 | /* Freeze or thaw the unit. Returns > 0 to indicate that the request will be handled asynchronously; unit_frozen |
578 | * or unit_thawed should be called once the operation is done. Returns 0 if done successfully, or < 0 on error. */ | |
579 | int (*freezer_action)(Unit *u, FreezerAction a); | |
d9e45bc3 MS |
580 | bool (*can_freeze)(Unit *u); |
581 | ||
380dc8b0 LP |
582 | /* Return which kind of data can be cleaned */ |
583 | int (*can_clean)(Unit *u, ExecCleanMask *ret); | |
584 | ||
87f0e418 LP |
585 | bool (*can_reload)(Unit *u); |
586 | ||
1ece068e ZJS |
587 | /* Serialize state and file descriptors that should be carried over into the new |
588 | * instance after reexecution. */ | |
a16e1123 LP |
589 | int (*serialize)(Unit *u, FILE *f, FDSet *fds); |
590 | ||
591 | /* Restore one item from the serialization */ | |
592 | int (*deserialize_item)(Unit *u, const char *key, const char *data, FDSet *fds); | |
593 | ||
01e10de3 | 594 | /* Try to match up fds with what we need for this unit */ |
9ff1a6f1 | 595 | void (*distribute_fds)(Unit *u, FDSet *fds); |
01e10de3 | 596 | |
87f0e418 LP |
597 | /* Boils down the more complex internal state of this unit to |
598 | * a simpler one that the engine can understand */ | |
599 | UnitActiveState (*active_state)(Unit *u); | |
600 | ||
10a94420 LP |
601 | /* Returns the substate specific to this unit type as |
602 | * string. This is purely information so that we can give the | |
35b8ca3a | 603 | * user a more fine grained explanation in which actual state a |
10a94420 LP |
604 | * unit is in. */ |
605 | const char* (*sub_state_to_string)(Unit *u); | |
606 | ||
deb4e708 MK |
607 | /* Additionally to UnitActiveState determine whether unit is to be restarted. */ |
608 | bool (*will_restart)(Unit *u); | |
609 | ||
f2f725e5 ZJS |
610 | /* Return false when there is a reason to prevent this unit from being gc'ed |
611 | * even though nothing references it and it isn't active in any way. */ | |
612 | bool (*may_gc)(Unit *u); | |
701cc384 | 613 | |
39c79477 ZJS |
614 | /* Return true when the unit is not controlled by the manager (e.g. extrinsic mounts). */ |
615 | bool (*is_extrinsic)(Unit *u); | |
616 | ||
7eb2a8a1 LP |
617 | /* When the unit is not running and no job for it queued we shall release its runtime resources */ |
618 | void (*release_resources)(Unit *u); | |
a354329f | 619 | |
718db961 | 620 | /* Invoked on every child that died */ |
87f0e418 | 621 | void (*sigchld_event)(Unit *u, pid_t pid, int code, int status); |
7824bbeb | 622 | |
fdf20a31 MM |
623 | /* Reset failed state if we are in failed state */ |
624 | void (*reset_failed)(Unit *u); | |
5632e374 | 625 | |
afcfaa69 | 626 | /* Called whenever any of the cgroups this unit watches for ran empty */ |
4ad49000 | 627 | void (*notify_cgroup_empty)(Unit *u); |
8e274523 | 628 | |
afcfaa69 | 629 | /* Called whenever an OOM kill event on this unit was seen */ |
38c41427 | 630 | void (*notify_cgroup_oom)(Unit *u, bool managed_oom); |
afcfaa69 | 631 | |
8c47c732 | 632 | /* Called whenever a process of this unit sends us a message */ |
fcee2755 | 633 | void (*notify_message)(Unit *u, const struct ucred *ucred, char * const *tags, FDSet *fds); |
8c47c732 | 634 | |
817062e6 LP |
635 | /* Called whenever we learn a handoff timestamp */ |
636 | void (*notify_handoff_timestamp)(Unit *u, const struct ucred *ucred, const dual_timestamp *ts); | |
637 | ||
00d9ef85 | 638 | /* Called whenever a name this Unit registered for comes or goes away. */ |
fc67a943 | 639 | void (*bus_name_owner_change)(Unit *u, const char *new_owner); |
05e343b7 | 640 | |
8e2af478 | 641 | /* Called for each property that is being set */ |
2e59b241 | 642 | int (*bus_set_property)(Unit *u, const char *name, sd_bus_message *message, UnitWriteFlags flags, sd_bus_error *error); |
8e2af478 LP |
643 | |
644 | /* Called after at least one property got changed to apply the necessary change */ | |
645 | int (*bus_commit_properties)(Unit *u); | |
646 | ||
a7f241db LP |
647 | /* Return the unit this unit is following */ |
648 | Unit *(*following)(Unit *u); | |
649 | ||
6210e7fc LP |
650 | /* Return the set of units that are following each other */ |
651 | int (*following_set)(Unit *u, Set **s); | |
652 | ||
3ecaa09b LP |
653 | /* Invoked each time a unit this unit is triggering changes |
654 | * state or gains/loses a job */ | |
655 | void (*trigger_notify)(Unit *u, Unit *trigger); | |
656 | ||
8742514c LP |
657 | /* Called whenever CLOCK_REALTIME made a jump */ |
658 | void (*time_change)(Unit *u); | |
659 | ||
bbf5fd8e LP |
660 | /* Called whenever /etc/localtime was modified */ |
661 | void (*timezone_change)(Unit *u); | |
662 | ||
7a7821c8 LP |
663 | /* Returns the next timeout of a unit */ |
664 | int (*get_timeout)(Unit *u, usec_t *timeout); | |
68db7a3b | 665 | |
f5a9d2ee | 666 | /* Returns the start timeout of a unit */ |
667 | usec_t (*get_timeout_start_usec)(Unit *u); | |
668 | ||
28364bc3 | 669 | /* Returns the main PID if there is any defined, or NULL. */ |
3e22239d | 670 | PidRef* (*main_pid)(Unit *u, bool *ret_is_alien); |
291d565a | 671 | |
28364bc3 | 672 | /* Returns the control PID if there is any defined, or NULL. */ |
37eb258e | 673 | PidRef* (*control_pid)(Unit *u); |
291d565a | 674 | |
bb2c7685 LP |
675 | /* Returns true if the unit currently needs access to the console */ |
676 | bool (*needs_console)(Unit *u); | |
677 | ||
7af67e9a LP |
678 | /* Returns the exit status to propagate in case of FailureAction=exit/SuccessAction=exit; usually returns the |
679 | * exit code of the "main" process of the service or similar. */ | |
680 | int (*exit_status)(Unit *u); | |
681 | ||
5e1669ff ZJS |
682 | /* Return a copy of the status string pointer. */ |
683 | const char* (*status_text)(Unit *u); | |
684 | ||
04eb582a LP |
685 | /* Like the enumerate() callback further down, but only enumerates the perpetual units, i.e. all units that |
686 | * unconditionally exist and are always active. The main reason to keep both enumeration functions separate is | |
687 | * philosophical: the state of perpetual units should be put in place by coldplug(), while the state of those | |
688 | * discovered through regular enumeration should be put in place by catchup(), see below. */ | |
689 | void (*enumerate_perpetual)(Manager *m); | |
690 | ||
f0831ed2 LP |
691 | /* This is called for each unit type and should be used to enumerate units already existing in the system |
692 | * internally and load them. However, everything that is loaded here should still stay in inactive state. It is | |
04eb582a | 693 | * the job of the catchup() call above to put the units into the discovered state. */ |
ba64af90 | 694 | void (*enumerate)(Manager *m); |
f50e0a01 LP |
695 | |
696 | /* Type specific cleanups. */ | |
7824bbeb | 697 | void (*shutdown)(Manager *m); |
9d58f1db | 698 | |
cbd4a8df | 699 | /* If this function is set and returns false all jobs for units |
0faacd47 | 700 | * of this type will immediately fail. */ |
1c2e9646 | 701 | bool (*supported)(void); |
0faacd47 | 702 | |
9727f242 DDM |
703 | /* If this function is set, it's invoked first as part of starting a unit to allow start rate |
704 | * limiting checks to occur before we do anything else. */ | |
705578c3 | 705 | int (*can_start)(Unit *u); |
9727f242 | 706 | |
47261967 LP |
707 | /* Returns > 0 if the whole subsystem is ratelimited, and new start operations should not be started |
708 | * for this unit type right now. */ | |
709 | int (*subsystem_ratelimited)(Manager *m); | |
710 | ||
718db961 | 711 | /* The strings to print in status messages */ |
c6918296 MS |
712 | UnitStatusMessageFormats status_message_formats; |
713 | ||
c2756a68 | 714 | /* True if transient units of this type are OK */ |
cbd4a8df | 715 | bool can_transient; |
c5a97ed1 | 716 | |
1d9cc876 | 717 | /* True if cgroup delegation is permissible */ |
cbd4a8df | 718 | bool can_delegate; |
1d9cc876 | 719 | |
c80a9a33 | 720 | /* True if the unit type triggers other units, i.e. can have a UNIT_TRIGGERS dependency */ |
cbd4a8df | 721 | bool can_trigger; |
c80a9a33 LP |
722 | |
723 | /* True if the unit type knows a failure state, and thus can be source of an OnFailure= dependency */ | |
cbd4a8df | 724 | bool can_fail; |
c80a9a33 | 725 | |
d4fd1cf2 | 726 | /* True if units of this type shall be startable only once and then never again */ |
cbd4a8df | 727 | bool once_only; |
d4fd1cf2 | 728 | |
755021d4 ZJS |
729 | /* Do not serialize this unit when preparing for root switch */ |
730 | bool exclude_from_switch_root_serialization; | |
731 | ||
c5a97ed1 | 732 | /* True if queued jobs of this type should be GC'ed if no other job needs them anymore */ |
cbd4a8df | 733 | bool gc_jobs; |
4d824a4e | 734 | |
0923b425 | 735 | /* True if systemd-oomd can monitor and act on this unit's recursive children's cgroups */ |
cbd4a8df | 736 | bool can_set_managed_oom; |
d52b8493 | 737 | |
b2bfd121 LP |
738 | /* If true, we'll notify plymouth about this unit */ |
739 | bool notify_plymouth; | |
740 | ||
b2d6bb5b LP |
741 | /* If true, we'll notify a surrounding VMM/container manager about this unit becoming available */ |
742 | bool notify_supervisor; | |
743 | ||
d52b8493 LP |
744 | /* The audit events to generate on start + stop (or 0 if none shall be generated) */ |
745 | int audit_start_message_type; | |
746 | int audit_stop_message_type; | |
57b7a260 | 747 | } UnitVTable; |
87f0e418 LP |
748 | |
749 | extern const UnitVTable * const unit_vtable[_UNIT_TYPE_MAX]; | |
750 | ||
c2503e35 | 751 | static inline const UnitVTable* UNIT_VTABLE(const Unit *u) { |
6529ccfa LP |
752 | return unit_vtable[u->type]; |
753 | } | |
87f0e418 LP |
754 | |
755 | /* For casting a unit into the various unit types */ | |
756 | #define DEFINE_CAST(UPPERCASE, MixedCase) \ | |
757 | static inline MixedCase* UPPERCASE(Unit *u) { \ | |
ac155bb8 | 758 | if (_unlikely_(!u || u->type != UNIT_##UPPERCASE)) \ |
87f0e418 LP |
759 | return NULL; \ |
760 | \ | |
761 | return (MixedCase*) u; \ | |
762 | } | |
763 | ||
764 | /* For casting the various unit types into a unit */ | |
bbf11206 LP |
765 | #define UNIT(u) \ |
766 | ({ \ | |
767 | typeof(u) _u_ = (u); \ | |
768 | Unit *_w_ = _u_ ? &(_u_)->meta : NULL; \ | |
769 | _w_; \ | |
770 | }) | |
87f0e418 | 771 | |
35b7ff80 LP |
772 | #define UNIT_HAS_EXEC_CONTEXT(u) (UNIT_VTABLE(u)->exec_context_offset > 0) |
773 | #define UNIT_HAS_CGROUP_CONTEXT(u) (UNIT_VTABLE(u)->cgroup_context_offset > 0) | |
774 | #define UNIT_HAS_KILL_CONTEXT(u) (UNIT_VTABLE(u)->kill_context_offset > 0) | |
775 | ||
15ed3c3a LP |
776 | Unit* unit_has_dependency(const Unit *u, UnitDependencyAtom atom, Unit *other); |
777 | int unit_get_dependency_array(const Unit *u, UnitDependencyAtom atom, Unit ***ret_array); | |
83123a44 | 778 | int unit_get_transitive_dependency_set(Unit *u, UnitDependencyAtom atom, Set **ret); |
15ed3c3a LP |
779 | |
780 | static inline Hashmap* unit_get_dependencies(Unit *u, UnitDependency d) { | |
781 | return hashmap_get(u->dependencies, UNIT_DEPENDENCY_TO_PTR(d)); | |
782 | } | |
783 | ||
6529ccfa | 784 | static inline Unit* UNIT_TRIGGER(Unit *u) { |
15ed3c3a | 785 | return unit_has_dependency(u, UNIT_ATOM_TRIGGERS, NULL); |
6529ccfa | 786 | } |
3ecaa09b | 787 | |
12f64221 | 788 | static inline Unit* UNIT_GET_SLICE(const Unit *u) { |
d219a2b0 | 789 | return unit_has_dependency(u, UNIT_ATOM_IN_SLICE, NULL); |
12f64221 LP |
790 | } |
791 | ||
75db809a ZJS |
792 | Unit* unit_new(Manager *m, size_t size); |
793 | Unit* unit_free(Unit *u); | |
dc409696 | 794 | DEFINE_TRIVIAL_CLEANUP_FUNC(Unit *, unit_free); |
87f0e418 | 795 | |
a581e45a | 796 | int unit_new_for_name(Manager *m, size_t size, const char *name, Unit **ret); |
87f0e418 | 797 | int unit_add_name(Unit *u, const char *name); |
9e2f7c11 | 798 | |
eef85c4a LP |
799 | int unit_add_dependency(Unit *u, UnitDependency d, Unit *other, bool add_reference, UnitDependencyMask mask); |
800 | int unit_add_two_dependencies(Unit *u, UnitDependency d, UnitDependency e, Unit *other, bool add_reference, UnitDependencyMask mask); | |
2c966c03 | 801 | |
35d8c19a | 802 | int unit_add_dependency_by_name(Unit *u, UnitDependency d, const char *name, bool add_reference, UnitDependencyMask mask); |
5a724170 | 803 | int unit_add_two_dependencies_by_name(Unit *u, UnitDependency d, UnitDependency e, const char *name, bool add_reference, UnitDependencyMask mask); |
2c966c03 | 804 | |
23a177ef LP |
805 | int unit_add_exec_dependencies(Unit *u, ExecContext *c); |
806 | ||
0ae97ec1 | 807 | int unit_choose_id(Unit *u, const char *name); |
f50e0a01 | 808 | int unit_set_description(Unit *u, const char *description); |
87f0e418 | 809 | |
6ac62d61 LP |
810 | void unit_release_resources(Unit *u); |
811 | ||
f2f725e5 | 812 | bool unit_may_gc(Unit *u); |
701cc384 | 813 | |
39c79477 ZJS |
814 | static inline bool unit_is_extrinsic(Unit *u) { |
815 | return u->perpetual || | |
816 | (UNIT_VTABLE(u)->is_extrinsic && UNIT_VTABLE(u)->is_extrinsic(u)); | |
817 | } | |
818 | ||
5e1669ff ZJS |
819 | static inline const char* unit_status_text(Unit *u) { |
820 | if (u && UNIT_VTABLE(u)->status_text) | |
821 | return UNIT_VTABLE(u)->status_text(u); | |
822 | return NULL; | |
823 | } | |
824 | ||
87f0e418 | 825 | void unit_add_to_load_queue(Unit *u); |
c1e1601e | 826 | void unit_add_to_dbus_queue(Unit *u); |
23a177ef | 827 | void unit_add_to_cleanup_queue(Unit *u); |
701cc384 | 828 | void unit_add_to_gc_queue(Unit *u); |
19496554 | 829 | void unit_add_to_target_deps_queue(Unit *u); |
fda09318 | 830 | void unit_submit_to_stop_when_unneeded_queue(Unit *u); |
0bc488c9 | 831 | void unit_submit_to_start_when_upheld_queue(Unit *u); |
56c59592 | 832 | void unit_submit_to_stop_when_bound_queue(Unit *u); |
6ac62d61 | 833 | void unit_submit_to_release_resources_queue(Unit *u); |
87f0e418 LP |
834 | |
835 | int unit_merge(Unit *u, Unit *other); | |
23a177ef LP |
836 | int unit_merge_by_name(Unit *u, const char *other); |
837 | ||
44a6b1b6 | 838 | Unit *unit_follow_merge(Unit *u) _pure_; |
87f0e418 | 839 | |
c3620770 | 840 | int unit_load_fragment_and_dropin(Unit *u, bool fragment_required); |
87f0e418 LP |
841 | int unit_load(Unit *unit); |
842 | ||
899acf5c | 843 | int unit_set_slice(Unit *u, Unit *slice); |
d79200e2 | 844 | int unit_set_default_slice(Unit *u); |
a016b922 | 845 | |
44a6b1b6 | 846 | const char *unit_description(Unit *u) _pure_; |
04d232d8 | 847 | const char *unit_status_string(Unit *u, char **combined); |
87f0e418 | 848 | |
303ee601 | 849 | bool unit_has_name(const Unit *u, const char *name); |
f278026d | 850 | |
87f0e418 | 851 | UnitActiveState unit_active_state(Unit *u); |
d9e45bc3 | 852 | FreezerState unit_freezer_state(Unit *u); |
87f0e418 | 853 | |
10a94420 LP |
854 | const char* unit_sub_state_to_string(Unit *u); |
855 | ||
44a6b1b6 ZJS |
856 | bool unit_can_reload(Unit *u) _pure_; |
857 | bool unit_can_start(Unit *u) _pure_; | |
f5869324 | 858 | bool unit_can_stop(Unit *u) _pure_; |
44a6b1b6 | 859 | bool unit_can_isolate(Unit *u) _pure_; |
87f0e418 | 860 | |
48b92b37 | 861 | int unit_start(Unit *u, ActivationDetails *details); |
87f0e418 LP |
862 | int unit_stop(Unit *u); |
863 | int unit_reload(Unit *u); | |
864 | ||
ec5e2a13 | 865 | int unit_kill(Unit *u, KillWho w, int signo, int code, int value, sd_bus_error *ret_error); |
8a0867d6 | 866 | |
38c41427 NK |
867 | void unit_notify_cgroup_oom(Unit *u, bool managed_oom); |
868 | ||
96b09de5 | 869 | void unit_notify(Unit *u, UnitActiveState os, UnitActiveState ns, bool reload_success); |
87f0e418 | 870 | |
d70dfe1b | 871 | int unit_watch_pidref(Unit *u, const PidRef *pid, bool exclusive); |
f75f613d | 872 | int unit_watch_pid(Unit *u, pid_t pid, bool exclusive); |
d70dfe1b | 873 | void unit_unwatch_pidref(Unit *u, const PidRef *pid); |
87f0e418 | 874 | void unit_unwatch_pid(Unit *u, pid_t pid); |
a911bb9a | 875 | void unit_unwatch_all_pids(Unit *u); |
ea1e0bf1 | 876 | void unit_unwatch_pidref_done(Unit *u, PidRef *pidref); |
a911bb9a | 877 | |
50be4f4a LP |
878 | int unit_enqueue_rewatch_pids(Unit *u); |
879 | void unit_dequeue_rewatch_pids(Unit *u); | |
87f0e418 | 880 | |
9806e87d | 881 | int unit_install_bus_match(Unit *u, sd_bus *bus, const char *name); |
05e343b7 LP |
882 | int unit_watch_bus_name(Unit *u, const char *name); |
883 | void unit_unwatch_bus_name(Unit *u, const char *name); | |
884 | ||
87f0e418 LP |
885 | bool unit_job_is_applicable(Unit *u, JobType j); |
886 | ||
0301abf4 LP |
887 | int set_unit_path(const char *p); |
888 | ||
50159e6a | 889 | char *unit_dbus_path(Unit *u); |
4b58153d | 890 | char *unit_dbus_path_invocation_id(Unit *u); |
50159e6a | 891 | |
f6ff8c29 LP |
892 | int unit_load_related_unit(Unit *u, const char *type, Unit **_found); |
893 | ||
d336ba9f | 894 | int unit_add_node_dependency(Unit *u, const char *what, UnitDependency d, UnitDependencyMask mask); |
44b0d1fd | 895 | int unit_add_blockdev_dependency(Unit *u, const char *what, UnitDependencyMask mask); |
6e2ef85b | 896 | |
be847e82 | 897 | int unit_coldplug(Unit *u); |
f0831ed2 | 898 | void unit_catchup(Unit *u); |
cca098b0 | 899 | |
04d232d8 | 900 | void unit_status_printf(Unit *u, StatusType status_type, const char *status, const char *format, const char *ident) _printf_(4, 0); |
9e58ff9c | 901 | |
45fb0699 LP |
902 | bool unit_need_daemon_reload(Unit *u); |
903 | ||
fdf20a31 | 904 | void unit_reset_failed(Unit *u); |
5632e374 | 905 | |
a7f241db | 906 | Unit *unit_following(Unit *u); |
eeaedb7c | 907 | int unit_following_set(Unit *u, Set **s); |
a7f241db | 908 | |
9444b1f2 LP |
909 | const char *unit_slice_name(Unit *u); |
910 | ||
44a6b1b6 ZJS |
911 | bool unit_stop_pending(Unit *u) _pure_; |
912 | bool unit_inactive_or_pending(Unit *u) _pure_; | |
31afa0a4 | 913 | bool unit_active_or_pending(Unit *u); |
52a12341 | 914 | bool unit_will_restart_default(Unit *u); |
deb4e708 | 915 | bool unit_will_restart(Unit *u); |
18ffdfda | 916 | |
bba34eed LP |
917 | int unit_add_default_target_dependency(Unit *u, Unit *target); |
918 | ||
294446dc | 919 | void unit_start_on_failure(Unit *u, const char *dependency_name, UnitDependencyAtom atom, JobMode job_mode); |
3ecaa09b | 920 | void unit_trigger_notify(Unit *u); |
c0daa706 | 921 | |
a4375746 | 922 | UnitFileState unit_get_unit_file_state(Unit *u); |
e77e07f6 | 923 | PresetAction unit_get_unit_file_preset(Unit *u); |
a4375746 | 924 | |
7f7d01ed | 925 | Unit* unit_ref_set(UnitRef *ref, Unit *source, Unit *target); |
57020a3a LP |
926 | void unit_ref_unset(UnitRef *ref); |
927 | ||
7f7d01ed ZJS |
928 | #define UNIT_DEREF(ref) ((ref).target) |
929 | #define UNIT_ISSET(ref) (!!(ref).target) | |
57020a3a | 930 | |
598459ce | 931 | int unit_patch_contexts(Unit *u); |
e06c73cc | 932 | |
c2503e35 | 933 | ExecContext *unit_get_exec_context(const Unit *u) _pure_; |
9cc54544 LP |
934 | KillContext *unit_get_kill_context(const Unit *u) _pure_; |
935 | CGroupContext *unit_get_cgroup_context(const Unit *u) _pure_; | |
598459ce | 936 | |
9cc54544 LP |
937 | ExecRuntime *unit_get_exec_runtime(const Unit *u) _pure_; |
938 | CGroupRuntime *unit_get_cgroup_runtime(const Unit *u) _pure_; | |
613b411c LP |
939 | |
940 | int unit_setup_exec_runtime(Unit *u); | |
9cc54544 | 941 | CGroupRuntime *unit_setup_cgroup_runtime(Unit *u); |
3ef63c31 | 942 | |
68ecb48b | 943 | const char* unit_escape_setting(const char *s, UnitWriteFlags flags, char **buf); |
2e59b241 | 944 | char* unit_concat_strv(char **l, UnitWriteFlags flags); |
b9ec9359 | 945 | |
2e59b241 LP |
946 | int unit_write_setting(Unit *u, UnitWriteFlags flags, const char *name, const char *data); |
947 | int unit_write_settingf(Unit *u, UnitWriteFlags mode, const char *name, const char *format, ...) _printf_(4,5); | |
b9ec9359 | 948 | |
b826e317 | 949 | int unit_kill_context(Unit *u, KillOperation k); |
cd2086fe | 950 | |
c2756a68 LP |
951 | int unit_make_transient(Unit *u); |
952 | ||
9e615fa3 | 953 | int unit_add_mounts_for(Unit *u, const char *path, UnitDependencyMask mask, UnitMountDependencyType type); |
a57f7e2c | 954 | |
1c2e9646 LP |
955 | bool unit_type_supported(UnitType t); |
956 | ||
0f13f3bd LP |
957 | bool unit_is_pristine(Unit *u); |
958 | ||
a3c1168a | 959 | bool unit_is_unneeded(Unit *u); |
0bc488c9 | 960 | bool unit_is_upheld_by_active(Unit *u, Unit **ret_culprit); |
56c59592 | 961 | bool unit_is_bound_by_inactive(Unit *u, Unit **ret_culprit); |
a3c1168a | 962 | |
37eb258e | 963 | PidRef* unit_control_pid(Unit *u); |
3e22239d YW |
964 | PidRef* unit_main_pid_full(Unit *u, bool *ret_is_alien); |
965 | static inline PidRef* unit_main_pid(Unit *u) { | |
966 | return unit_main_pid_full(u, NULL); | |
967 | } | |
291d565a | 968 | |
8b4305c7 | 969 | void unit_warn_if_dir_nonempty(Unit *u, const char* where); |
25cd4964 | 970 | int unit_fail_if_noncanonical(Unit *u, const char* where); |
8b4305c7 | 971 | |
97a3f4ee | 972 | int unit_test_start_limit(Unit *u); |
07299350 | 973 | |
00d9ef85 LP |
974 | int unit_ref_uid_gid(Unit *u, uid_t uid, gid_t gid); |
975 | void unit_unref_uid_gid(Unit *u, bool destroy_now); | |
976 | ||
977 | void unit_notify_user_lookup(Unit *u, uid_t uid, gid_t gid); | |
978 | ||
2d3b784d | 979 | int unit_set_invocation_id(Unit *u, sd_id128_t id); |
4b58153d LP |
980 | int unit_acquire_invocation_id(Unit *u); |
981 | ||
1ad6e8b3 | 982 | int unit_set_exec_params(Unit *s, ExecParameters *p); |
f0d47797 | 983 | |
4775b55d LP |
984 | int unit_fork_helper_process(Unit *u, const char *name, PidRef *ret); |
985 | int unit_fork_and_watch_rm_rf(Unit *u, char **paths, PidRef *ret); | |
a79279c7 | 986 | |
c999cf38 LP |
987 | void unit_remove_dependencies(Unit *u, UnitDependencyMask mask); |
988 | ||
d3070fbd LP |
989 | void unit_export_state_files(Unit *u); |
990 | void unit_unlink_state_files(Unit *u); | |
991 | ||
3c7416b6 LP |
992 | int unit_prepare_exec(Unit *u); |
993 | ||
4d1b2df1 LP |
994 | int unit_log_leftover_process_start(const PidRef* pid, int sig, void *userdata); |
995 | int unit_log_leftover_process_stop(const PidRef* pid, int sig, void *userdata); | |
996 | ||
4c425434 | 997 | int unit_warn_leftover_processes(Unit *u, cg_kill_log_func_t log_func); |
a4634b21 | 998 | |
bb2c7685 LP |
999 | bool unit_needs_console(Unit *u); |
1000 | ||
d70dfe1b | 1001 | int unit_pid_attachable(Unit *unit, const PidRef *pid, sd_bus_error *error); |
6592b975 | 1002 | |
28a2dfe8 ZJS |
1003 | static inline bool unit_has_job_type(Unit *u, JobType type) { |
1004 | return u && u->job && u->job->type == type; | |
1005 | } | |
1006 | ||
c2503e35 RH |
1007 | static inline bool unit_log_level_test(const Unit *u, int level) { |
1008 | ExecContext *ec = unit_get_exec_context(u); | |
1009 | return !ec || ec->log_level_max < 0 || ec->log_level_max >= LOG_PRI(level); | |
1010 | } | |
1011 | ||
31cd5f63 AZ |
1012 | /* unit_log_skip is for cases like ExecCondition= where a unit is considered "done" |
1013 | * after some execution, rather than succeeded or failed. */ | |
1014 | void unit_log_skip(Unit *u, const char *result); | |
523ee2d4 | 1015 | void unit_log_success(Unit *u); |
7c047d74 | 1016 | void unit_log_failure(Unit *u, const char *result); |
aac99f30 ZJS |
1017 | static inline void unit_log_result(Unit *u, bool success, const char *result) { |
1018 | if (success) | |
1019 | unit_log_success(u); | |
1020 | else | |
1021 | unit_log_failure(u, result); | |
1022 | } | |
1023 | ||
5cc2cd1c | 1024 | void unit_log_process_exit(Unit *u, const char *kind, const char *command, bool success, int code, int status); |
7c047d74 | 1025 | |
7af67e9a LP |
1026 | int unit_exit_status(Unit *u); |
1027 | int unit_success_action_exit_status(Unit *u); | |
1028 | int unit_failure_action_exit_status(Unit *u); | |
1029 | ||
a4191c9f LP |
1030 | int unit_test_trigger_loaded(Unit *u); |
1031 | ||
bb0c0d6f | 1032 | void unit_destroy_runtime_data(Unit *u, const ExecContext *context); |
380dc8b0 LP |
1033 | int unit_clean(Unit *u, ExecCleanMask mask); |
1034 | int unit_can_clean(Unit *u, ExecCleanMask *ret_mask); | |
1035 | ||
f882c102 DDM |
1036 | bool unit_can_start_refuse_manual(Unit *u); |
1037 | bool unit_can_stop_refuse_manual(Unit *u); | |
1038 | bool unit_can_isolate_refuse_manual(Unit *u); | |
1039 | ||
d9e45bc3 | 1040 | bool unit_can_freeze(Unit *u); |
16b6af6a AV |
1041 | int unit_freezer_action(Unit *u, FreezerAction action); |
1042 | void unit_next_freezer_state(Unit *u, FreezerAction a, FreezerState *ret, FreezerState *ret_tgt); | |
d9e45bc3 | 1043 | void unit_frozen(Unit *u); |
d9e45bc3 MS |
1044 | void unit_thawed(Unit *u); |
1045 | ||
6e548561 DDM |
1046 | Condition *unit_find_failed_condition(Unit *u); |
1047 | ||
e9276800 LP |
1048 | int unit_arm_timer(Unit *u, sd_event_source **source, bool relative, usec_t usec, sd_event_time_handler_t handler); |
1049 | ||
a8157796 LP |
1050 | int unit_compare_priority(Unit *a, Unit *b); |
1051 | ||
9e615fa3 LB |
1052 | UnitMountDependencyType unit_mount_dependency_type_from_string(const char *s) _const_; |
1053 | const char* unit_mount_dependency_type_to_string(UnitMountDependencyType t) _const_; | |
1054 | UnitDependency unit_mount_dependency_type_to_dependency_type(UnitMountDependencyType t) _pure_; | |
1055 | ||
e8e581bf ZJS |
1056 | /* Macros which append UNIT= or USER_UNIT= to the message */ |
1057 | ||
ac513634 | 1058 | #define log_unit_full_errno_zerook(unit, level, error, ...) \ |
f2341e0a | 1059 | ({ \ |
8dec4a9d | 1060 | const Unit *_u = (unit); \ |
c2503e35 | 1061 | const int _l = (level); \ |
1092e82b LB |
1062 | bool _do_log = !(log_get_max_level() < LOG_PRI(_l) || \ |
1063 | (_u && !unit_log_level_test(_u, _l))); \ | |
1064 | const ExecContext *_c = _do_log && _u ? \ | |
1065 | unit_get_exec_context(_u) : NULL; \ | |
1066 | LOG_CONTEXT_PUSH_IOV(_c ? _c->log_extra_fields : NULL, \ | |
1067 | _c ? _c->n_log_extra_fields : 0); \ | |
1068 | !_do_log ? -ERRNO_VALUE(error) : \ | |
c2503e35 RH |
1069 | _u ? log_object_internal(_l, error, PROJECT_FILE, __LINE__, __func__, _u->manager->unit_log_field, _u->id, _u->manager->invocation_log_field, _u->invocation_id_string, ##__VA_ARGS__) : \ |
1070 | log_internal(_l, error, PROJECT_FILE, __LINE__, __func__, ##__VA_ARGS__); \ | |
f2341e0a LP |
1071 | }) |
1072 | ||
ac513634 YW |
1073 | #define log_unit_full_errno(unit, level, error, ...) \ |
1074 | ({ \ | |
1075 | int _error = (error); \ | |
1076 | ASSERT_NON_ZERO(_error); \ | |
1077 | log_unit_full_errno_zerook(unit, level, _error, ##__VA_ARGS__); \ | |
1078 | }) | |
1079 | ||
1080 | #define log_unit_full(unit, level, ...) (void) log_unit_full_errno_zerook(unit, level, 0, __VA_ARGS__) | |
8ed6f81b | 1081 | |
ac513634 | 1082 | #define log_unit_debug(unit, ...) log_unit_full(unit, LOG_DEBUG, __VA_ARGS__) |
8ed6f81b YW |
1083 | #define log_unit_info(unit, ...) log_unit_full(unit, LOG_INFO, __VA_ARGS__) |
1084 | #define log_unit_notice(unit, ...) log_unit_full(unit, LOG_NOTICE, __VA_ARGS__) | |
1085 | #define log_unit_warning(unit, ...) log_unit_full(unit, LOG_WARNING, __VA_ARGS__) | |
1086 | #define log_unit_error(unit, ...) log_unit_full(unit, LOG_ERR, __VA_ARGS__) | |
1087 | ||
1088 | #define log_unit_debug_errno(unit, error, ...) log_unit_full_errno(unit, LOG_DEBUG, error, __VA_ARGS__) | |
1089 | #define log_unit_info_errno(unit, error, ...) log_unit_full_errno(unit, LOG_INFO, error, __VA_ARGS__) | |
1090 | #define log_unit_notice_errno(unit, error, ...) log_unit_full_errno(unit, LOG_NOTICE, error, __VA_ARGS__) | |
1091 | #define log_unit_warning_errno(unit, error, ...) log_unit_full_errno(unit, LOG_WARNING, error, __VA_ARGS__) | |
1092 | #define log_unit_error_errno(unit, error, ...) log_unit_full_errno(unit, LOG_ERR, error, __VA_ARGS__) | |
f2341e0a | 1093 | |
556b6f4e DDM |
1094 | #if LOG_TRACE |
1095 | # define log_unit_trace(...) log_unit_debug(__VA_ARGS__) | |
1096 | # define log_unit_trace_errno(...) log_unit_debug_errno(__VA_ARGS__) | |
1097 | #else | |
1098 | # define log_unit_trace(...) do {} while (0) | |
1099 | # define log_unit_trace_errno(e, ...) (-ERRNO_VALUE(e)) | |
1100 | #endif | |
1101 | ||
c2503e35 RH |
1102 | #define log_unit_struct_errno(unit, level, error, ...) \ |
1103 | ({ \ | |
1104 | const Unit *_u = (unit); \ | |
1105 | const int _l = (level); \ | |
1092e82b LB |
1106 | bool _do_log = unit_log_level_test(_u, _l); \ |
1107 | const ExecContext *_c = _do_log && _u ? \ | |
1108 | unit_get_exec_context(_u) : NULL; \ | |
1109 | LOG_CONTEXT_PUSH_IOV(_c ? _c->log_extra_fields : NULL, \ | |
1110 | _c ? _c->n_log_extra_fields : 0); \ | |
1111 | _do_log ? \ | |
c2503e35 RH |
1112 | log_struct_errno(_l, error, __VA_ARGS__, LOG_UNIT_ID(_u)) : \ |
1113 | -ERRNO_VALUE(error); \ | |
1114 | }) | |
1115 | ||
1116 | #define log_unit_struct(unit, level, ...) log_unit_struct_errno(unit, level, 0, __VA_ARGS__) | |
1117 | ||
1118 | #define log_unit_struct_iovec_errno(unit, level, error, iovec, n_iovec) \ | |
1119 | ({ \ | |
1092e82b | 1120 | const Unit *_u = (unit); \ |
c2503e35 | 1121 | const int _l = (level); \ |
1092e82b LB |
1122 | bool _do_log = unit_log_level_test(_u, _l); \ |
1123 | const ExecContext *_c = _do_log && _u ? \ | |
1124 | unit_get_exec_context(_u) : NULL; \ | |
1125 | LOG_CONTEXT_PUSH_IOV(_c ? _c->log_extra_fields : NULL, \ | |
1126 | _c ? _c->n_log_extra_fields : 0); \ | |
1127 | _do_log ? \ | |
c2503e35 RH |
1128 | log_struct_iovec_errno(_l, error, iovec, n_iovec) : \ |
1129 | -ERRNO_VALUE(error); \ | |
1130 | }) | |
1131 | ||
1132 | #define log_unit_struct_iovec(unit, level, iovec, n_iovec) log_unit_struct_iovec_errno(unit, level, 0, iovec, n_iovec) | |
1133 | ||
b9ce5cf9 ZJS |
1134 | /* Like LOG_MESSAGE(), but with the unit name prefixed. */ |
1135 | #define LOG_UNIT_MESSAGE(unit, fmt, ...) LOG_MESSAGE("%s: " fmt, (unit)->id, ##__VA_ARGS__) | |
f2341e0a | 1136 | #define LOG_UNIT_ID(unit) (unit)->manager->unit_log_format_string, (unit)->id |
f1c50bec | 1137 | #define LOG_UNIT_INVOCATION_ID(unit) (unit)->manager->invocation_log_format_string, (unit)->invocation_id_string |
5afe510c LP |
1138 | |
1139 | const char* collect_mode_to_string(CollectMode m) _const_; | |
1140 | CollectMode collect_mode_from_string(const char *s) _pure_; | |
15ed3c3a LP |
1141 | |
1142 | typedef struct UnitForEachDependencyData { | |
1143 | /* Stores state for the FOREACH macro below for iterating through all deps that have any of the | |
1144 | * specified dependency atom bits set */ | |
1145 | UnitDependencyAtom match_atom; | |
1146 | Hashmap *by_type, *by_unit; | |
1147 | void *current_type; | |
1148 | Iterator by_type_iterator, by_unit_iterator; | |
1149 | Unit **current_unit; | |
1150 | } UnitForEachDependencyData; | |
1151 | ||
1152 | /* Iterates through all dependencies that have a specific atom in the dependency type set. This tries to be | |
1153 | * smart: if the atom is unique, we'll directly go to right entry. Otherwise we'll iterate through the | |
1154 | * per-dependency type hashmap and match all dep that have the right atom set. */ | |
1155 | #define _UNIT_FOREACH_DEPENDENCY(other, u, ma, data) \ | |
1156 | for (UnitForEachDependencyData data = { \ | |
1157 | .match_atom = (ma), \ | |
1158 | .by_type = (u)->dependencies, \ | |
1159 | .by_type_iterator = ITERATOR_FIRST, \ | |
1160 | .current_unit = &(other), \ | |
1161 | }; \ | |
1162 | ({ \ | |
1163 | UnitDependency _dt = _UNIT_DEPENDENCY_INVALID; \ | |
1164 | bool _found; \ | |
1165 | \ | |
1166 | if (data.by_type && ITERATOR_IS_FIRST(data.by_type_iterator)) { \ | |
1167 | _dt = unit_dependency_from_unique_atom(data.match_atom); \ | |
1168 | if (_dt >= 0) { \ | |
1169 | data.by_unit = hashmap_get(data.by_type, UNIT_DEPENDENCY_TO_PTR(_dt)); \ | |
1170 | data.current_type = UNIT_DEPENDENCY_TO_PTR(_dt); \ | |
1171 | data.by_type = NULL; \ | |
1172 | _found = !!data.by_unit; \ | |
1173 | } \ | |
1174 | } \ | |
1175 | if (_dt < 0) \ | |
1176 | _found = hashmap_iterate(data.by_type, \ | |
1177 | &data.by_type_iterator, \ | |
1178 | (void**)&(data.by_unit), \ | |
1179 | (const void**) &(data.current_type)); \ | |
1180 | _found; \ | |
1181 | }); ) \ | |
1182 | if ((unit_dependency_to_atom(UNIT_DEPENDENCY_FROM_PTR(data.current_type)) & data.match_atom) != 0) \ | |
1183 | for (data.by_unit_iterator = ITERATOR_FIRST; \ | |
1184 | hashmap_iterate(data.by_unit, \ | |
1185 | &data.by_unit_iterator, \ | |
1186 | NULL, \ | |
1187 | (const void**) data.current_unit); ) | |
1188 | ||
1189 | /* Note: this matches deps that have *any* of the atoms specified in match_atom set */ | |
1190 | #define UNIT_FOREACH_DEPENDENCY(other, u, match_atom) \ | |
1191 | _UNIT_FOREACH_DEPENDENCY(other, u, match_atom, UNIQ_T(data, UNIQ)) | |
4b2af439 DDM |
1192 | |
1193 | #define _LOG_CONTEXT_PUSH_UNIT(unit, u, c) \ | |
1194 | const Unit *u = (unit); \ | |
1195 | const ExecContext *c = unit_get_exec_context(u); \ | |
1196 | LOG_CONTEXT_PUSH_KEY_VALUE(u->manager->unit_log_field, u->id); \ | |
1197 | LOG_CONTEXT_PUSH_KEY_VALUE(u->manager->invocation_log_field, u->invocation_id_string); \ | |
1198 | LOG_CONTEXT_PUSH_IOV(c ? c->log_extra_fields : NULL, c ? c->n_log_extra_fields : 0) | |
1199 | ||
1200 | #define LOG_CONTEXT_PUSH_UNIT(unit) \ | |
1201 | _LOG_CONTEXT_PUSH_UNIT(unit, UNIQ_T(u, UNIQ), UNIQ_T(c, UNIQ)) |