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523578aa LP |
1 | #pragma once |
2 | ||
3 | /*** | |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2010 Lennart Poettering | |
7 | ||
8 | systemd is free software; you can redistribute it and/or modify it | |
9 | under the terms of the GNU Lesser General Public License as published by | |
10 | the Free Software Foundation; either version 2.1 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | systemd is distributed in the hope that it will be useful, but | |
14 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | Lesser General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU Lesser General Public License | |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
20 | ***/ | |
21 | ||
22 | #include <stdbool.h> | |
23 | ||
24 | #include "macro.h" | |
25 | ||
26 | typedef enum UnitType { | |
27 | UNIT_SERVICE = 0, | |
28 | UNIT_SOCKET, | |
29 | UNIT_TARGET, | |
30 | UNIT_DEVICE, | |
31 | UNIT_MOUNT, | |
32 | UNIT_AUTOMOUNT, | |
33 | UNIT_SWAP, | |
34 | UNIT_TIMER, | |
35 | UNIT_PATH, | |
36 | UNIT_SLICE, | |
37 | UNIT_SCOPE, | |
38 | _UNIT_TYPE_MAX, | |
39 | _UNIT_TYPE_INVALID = -1 | |
40 | } UnitType; | |
41 | ||
42 | typedef enum UnitLoadState { | |
43 | UNIT_STUB = 0, | |
44 | UNIT_LOADED, | |
45 | UNIT_NOT_FOUND, | |
46 | UNIT_ERROR, | |
47 | UNIT_MERGED, | |
48 | UNIT_MASKED, | |
49 | _UNIT_LOAD_STATE_MAX, | |
50 | _UNIT_LOAD_STATE_INVALID = -1 | |
51 | } UnitLoadState; | |
52 | ||
53 | typedef enum UnitActiveState { | |
54 | UNIT_ACTIVE, | |
55 | UNIT_RELOADING, | |
56 | UNIT_INACTIVE, | |
57 | UNIT_FAILED, | |
58 | UNIT_ACTIVATING, | |
59 | UNIT_DEACTIVATING, | |
60 | _UNIT_ACTIVE_STATE_MAX, | |
61 | _UNIT_ACTIVE_STATE_INVALID = -1 | |
62 | } UnitActiveState; | |
63 | ||
64 | typedef enum AutomountState { | |
65 | AUTOMOUNT_DEAD, | |
66 | AUTOMOUNT_WAITING, | |
67 | AUTOMOUNT_RUNNING, | |
68 | AUTOMOUNT_FAILED, | |
69 | _AUTOMOUNT_STATE_MAX, | |
70 | _AUTOMOUNT_STATE_INVALID = -1 | |
71 | } AutomountState; | |
72 | ||
73 | /* We simply watch devices, we cannot plug/unplug them. That | |
74 | * simplifies the state engine greatly */ | |
75 | typedef enum DeviceState { | |
76 | DEVICE_DEAD, | |
77 | DEVICE_TENTATIVE, /* mounted or swapped, but not (yet) announced by udev */ | |
78 | DEVICE_PLUGGED, /* announced by udev */ | |
79 | _DEVICE_STATE_MAX, | |
80 | _DEVICE_STATE_INVALID = -1 | |
81 | } DeviceState; | |
82 | ||
83 | typedef enum MountState { | |
84 | MOUNT_DEAD, | |
85 | MOUNT_MOUNTING, /* /usr/bin/mount is running, but the mount is not done yet. */ | |
86 | MOUNT_MOUNTING_DONE, /* /usr/bin/mount is running, and the mount is done. */ | |
87 | MOUNT_MOUNTED, | |
88 | MOUNT_REMOUNTING, | |
89 | MOUNT_UNMOUNTING, | |
90 | MOUNT_REMOUNTING_SIGTERM, | |
91 | MOUNT_REMOUNTING_SIGKILL, | |
92 | MOUNT_UNMOUNTING_SIGTERM, | |
93 | MOUNT_UNMOUNTING_SIGKILL, | |
94 | MOUNT_FAILED, | |
95 | _MOUNT_STATE_MAX, | |
96 | _MOUNT_STATE_INVALID = -1 | |
97 | } MountState; | |
98 | ||
99 | typedef enum PathState { | |
100 | PATH_DEAD, | |
101 | PATH_WAITING, | |
102 | PATH_RUNNING, | |
103 | PATH_FAILED, | |
104 | _PATH_STATE_MAX, | |
105 | _PATH_STATE_INVALID = -1 | |
106 | } PathState; | |
107 | ||
108 | typedef enum ScopeState { | |
109 | SCOPE_DEAD, | |
110 | SCOPE_RUNNING, | |
111 | SCOPE_ABANDONED, | |
112 | SCOPE_STOP_SIGTERM, | |
113 | SCOPE_STOP_SIGKILL, | |
114 | SCOPE_FAILED, | |
115 | _SCOPE_STATE_MAX, | |
116 | _SCOPE_STATE_INVALID = -1 | |
117 | } ScopeState; | |
118 | ||
119 | typedef enum ServiceState { | |
120 | SERVICE_DEAD, | |
121 | SERVICE_START_PRE, | |
122 | SERVICE_START, | |
123 | SERVICE_START_POST, | |
124 | SERVICE_RUNNING, | |
125 | SERVICE_EXITED, /* Nothing is running anymore, but RemainAfterExit is true hence this is OK */ | |
126 | SERVICE_RELOAD, | |
127 | SERVICE_STOP, /* No STOP_PRE state, instead just register multiple STOP executables */ | |
128 | SERVICE_STOP_SIGABRT, /* Watchdog timeout */ | |
129 | SERVICE_STOP_SIGTERM, | |
130 | SERVICE_STOP_SIGKILL, | |
131 | SERVICE_STOP_POST, | |
132 | SERVICE_FINAL_SIGTERM, /* In case the STOP_POST executable hangs, we shoot that down, too */ | |
133 | SERVICE_FINAL_SIGKILL, | |
134 | SERVICE_FAILED, | |
135 | SERVICE_AUTO_RESTART, | |
136 | _SERVICE_STATE_MAX, | |
137 | _SERVICE_STATE_INVALID = -1 | |
138 | } ServiceState; | |
139 | ||
140 | typedef enum SliceState { | |
141 | SLICE_DEAD, | |
142 | SLICE_ACTIVE, | |
143 | _SLICE_STATE_MAX, | |
144 | _SLICE_STATE_INVALID = -1 | |
145 | } SliceState; | |
146 | ||
147 | typedef enum SocketState { | |
148 | SOCKET_DEAD, | |
149 | SOCKET_START_PRE, | |
150 | SOCKET_START_CHOWN, | |
151 | SOCKET_START_POST, | |
152 | SOCKET_LISTENING, | |
153 | SOCKET_RUNNING, | |
154 | SOCKET_STOP_PRE, | |
155 | SOCKET_STOP_PRE_SIGTERM, | |
156 | SOCKET_STOP_PRE_SIGKILL, | |
157 | SOCKET_STOP_POST, | |
158 | SOCKET_FINAL_SIGTERM, | |
159 | SOCKET_FINAL_SIGKILL, | |
160 | SOCKET_FAILED, | |
161 | _SOCKET_STATE_MAX, | |
162 | _SOCKET_STATE_INVALID = -1 | |
163 | } SocketState; | |
164 | ||
165 | typedef enum SwapState { | |
166 | SWAP_DEAD, | |
167 | SWAP_ACTIVATING, /* /sbin/swapon is running, but the swap not yet enabled. */ | |
168 | SWAP_ACTIVATING_DONE, /* /sbin/swapon is running, and the swap is done. */ | |
169 | SWAP_ACTIVE, | |
170 | SWAP_DEACTIVATING, | |
171 | SWAP_DEACTIVATING_SIGTERM, | |
172 | SWAP_DEACTIVATING_SIGKILL, | |
173 | SWAP_FAILED, | |
174 | _SWAP_STATE_MAX, | |
175 | _SWAP_STATE_INVALID = -1 | |
176 | } SwapState; | |
177 | ||
178 | typedef enum TargetState { | |
179 | TARGET_DEAD, | |
180 | TARGET_ACTIVE, | |
181 | _TARGET_STATE_MAX, | |
182 | _TARGET_STATE_INVALID = -1 | |
183 | } TargetState; | |
184 | ||
185 | typedef enum TimerState { | |
186 | TIMER_DEAD, | |
187 | TIMER_WAITING, | |
188 | TIMER_RUNNING, | |
189 | TIMER_ELAPSED, | |
190 | TIMER_FAILED, | |
191 | _TIMER_STATE_MAX, | |
192 | _TIMER_STATE_INVALID = -1 | |
193 | } TimerState; | |
194 | ||
195 | typedef enum UnitDependency { | |
196 | /* Positive dependencies */ | |
197 | UNIT_REQUIRES, | |
198 | UNIT_REQUISITE, | |
199 | UNIT_WANTS, | |
200 | UNIT_BINDS_TO, | |
201 | UNIT_PART_OF, | |
202 | ||
203 | /* Inverse of the above */ | |
204 | UNIT_REQUIRED_BY, /* inverse of 'requires' is 'required_by' */ | |
205 | UNIT_REQUISITE_OF, /* inverse of 'requisite' is 'requisite_of' */ | |
206 | UNIT_WANTED_BY, /* inverse of 'wants' */ | |
207 | UNIT_BOUND_BY, /* inverse of 'binds_to' */ | |
208 | UNIT_CONSISTS_OF, /* inverse of 'part_of' */ | |
209 | ||
210 | /* Negative dependencies */ | |
211 | UNIT_CONFLICTS, /* inverse of 'conflicts' is 'conflicted_by' */ | |
212 | UNIT_CONFLICTED_BY, | |
213 | ||
214 | /* Order */ | |
215 | UNIT_BEFORE, /* inverse of 'before' is 'after' and vice versa */ | |
216 | UNIT_AFTER, | |
217 | ||
218 | /* On Failure */ | |
219 | UNIT_ON_FAILURE, | |
220 | ||
221 | /* Triggers (i.e. a socket triggers a service) */ | |
222 | UNIT_TRIGGERS, | |
223 | UNIT_TRIGGERED_BY, | |
224 | ||
225 | /* Propagate reloads */ | |
226 | UNIT_PROPAGATES_RELOAD_TO, | |
227 | UNIT_RELOAD_PROPAGATED_FROM, | |
228 | ||
229 | /* Joins namespace of */ | |
230 | UNIT_JOINS_NAMESPACE_OF, | |
231 | ||
232 | /* Reference information for GC logic */ | |
233 | UNIT_REFERENCES, /* Inverse of 'references' is 'referenced_by' */ | |
234 | UNIT_REFERENCED_BY, | |
235 | ||
236 | _UNIT_DEPENDENCY_MAX, | |
237 | _UNIT_DEPENDENCY_INVALID = -1 | |
238 | } UnitDependency; | |
239 | ||
240 | typedef enum NotifyAccess { | |
241 | NOTIFY_NONE, | |
242 | NOTIFY_ALL, | |
243 | NOTIFY_MAIN, | |
244 | NOTIFY_EXEC, | |
245 | _NOTIFY_ACCESS_MAX, | |
246 | _NOTIFY_ACCESS_INVALID = -1 | |
247 | } NotifyAccess; | |
248 | ||
249 | char *unit_dbus_path_from_name(const char *name); | |
250 | int unit_name_from_dbus_path(const char *path, char **name); | |
251 | ||
252 | const char* unit_dbus_interface_from_type(UnitType t); | |
253 | const char *unit_dbus_interface_from_name(const char *name); | |
254 | ||
255 | const char *unit_type_to_string(UnitType i) _const_; | |
256 | UnitType unit_type_from_string(const char *s) _pure_; | |
257 | ||
258 | const char *unit_load_state_to_string(UnitLoadState i) _const_; | |
259 | UnitLoadState unit_load_state_from_string(const char *s) _pure_; | |
260 | ||
261 | const char *unit_active_state_to_string(UnitActiveState i) _const_; | |
262 | UnitActiveState unit_active_state_from_string(const char *s) _pure_; | |
263 | ||
264 | const char* automount_state_to_string(AutomountState i) _const_; | |
265 | AutomountState automount_state_from_string(const char *s) _pure_; | |
266 | ||
267 | const char* device_state_to_string(DeviceState i) _const_; | |
268 | DeviceState device_state_from_string(const char *s) _pure_; | |
269 | ||
270 | const char* mount_state_to_string(MountState i) _const_; | |
271 | MountState mount_state_from_string(const char *s) _pure_; | |
272 | ||
273 | const char* path_state_to_string(PathState i) _const_; | |
274 | PathState path_state_from_string(const char *s) _pure_; | |
275 | ||
276 | const char* scope_state_to_string(ScopeState i) _const_; | |
277 | ScopeState scope_state_from_string(const char *s) _pure_; | |
278 | ||
279 | const char* service_state_to_string(ServiceState i) _const_; | |
280 | ServiceState service_state_from_string(const char *s) _pure_; | |
281 | ||
282 | const char* slice_state_to_string(SliceState i) _const_; | |
283 | SliceState slice_state_from_string(const char *s) _pure_; | |
284 | ||
285 | const char* socket_state_to_string(SocketState i) _const_; | |
286 | SocketState socket_state_from_string(const char *s) _pure_; | |
287 | ||
288 | const char* swap_state_to_string(SwapState i) _const_; | |
289 | SwapState swap_state_from_string(const char *s) _pure_; | |
290 | ||
291 | const char* target_state_to_string(TargetState i) _const_; | |
292 | TargetState target_state_from_string(const char *s) _pure_; | |
293 | ||
294 | const char *timer_state_to_string(TimerState i) _const_; | |
295 | TimerState timer_state_from_string(const char *s) _pure_; | |
296 | ||
297 | const char *unit_dependency_to_string(UnitDependency i) _const_; | |
298 | UnitDependency unit_dependency_from_string(const char *s) _pure_; | |
299 | ||
300 | const char* notify_access_to_string(NotifyAccess i) _const_; | |
301 | NotifyAccess notify_access_from_string(const char *s) _pure_; |