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03467c88 | 1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
60918275 LP |
2 | |
3 | #ifndef foomanagerhfoo | |
4 | #define foomanagerhfoo | |
5 | ||
a7334b09 LP |
6 | /*** |
7 | This file is part of systemd. | |
8 | ||
9 | Copyright 2010 Lennart Poettering | |
10 | ||
11 | systemd is free software; you can redistribute it and/or modify it | |
12 | under the terms of the GNU General Public License as published by | |
13 | the Free Software Foundation; either version 2 of the License, or | |
14 | (at your option) any later version. | |
15 | ||
16 | systemd is distributed in the hope that it will be useful, but | |
17 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
19 | General Public License for more details. | |
20 | ||
21 | You should have received a copy of the GNU General Public License | |
22 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
23 | ***/ | |
24 | ||
60918275 LP |
25 | #include <stdbool.h> |
26 | #include <inttypes.h> | |
a66d02c3 | 27 | #include <stdio.h> |
ea430986 LP |
28 | #include <dbus/dbus.h> |
29 | ||
a16e1123 LP |
30 | #include "fdset.h" |
31 | ||
4f0f902f LP |
32 | /* Enforce upper limit how many names we allow */ |
33 | #define MANAGER_MAX_NAMES 2048 | |
34 | ||
60918275 | 35 | typedef struct Manager Manager; |
acbb0225 LP |
36 | typedef enum WatchType WatchType; |
37 | typedef struct Watch Watch; | |
38 | ||
a16e1123 LP |
39 | typedef enum ManagerExitCode { |
40 | MANAGER_RUNNING, | |
41 | MANAGER_EXIT, | |
42 | MANAGER_RELOAD, | |
43 | MANAGER_REEXECUTE, | |
b9080b03 FF |
44 | MANAGER_REBOOT, |
45 | MANAGER_POWEROFF, | |
46 | MANAGER_HALT, | |
47 | MANAGER_KEXEC, | |
a16e1123 LP |
48 | _MANAGER_EXIT_CODE_MAX, |
49 | _MANAGER_EXIT_CODE_INVALID = -1 | |
50 | } ManagerExitCode; | |
51 | ||
dfcd764e | 52 | typedef enum ManagerRunningAs { |
a3d4e06d LP |
53 | MANAGER_SYSTEM, |
54 | MANAGER_SESSION, | |
dfcd764e LP |
55 | _MANAGER_RUNNING_AS_MAX, |
56 | _MANAGER_RUNNING_AS_INVALID = -1 | |
57 | } ManagerRunningAs; | |
58 | ||
acbb0225 LP |
59 | enum WatchType { |
60 | WATCH_INVALID, | |
ef734fd6 | 61 | WATCH_SIGNAL, |
8c47c732 | 62 | WATCH_NOTIFY, |
acbb0225 | 63 | WATCH_FD, |
faf919f1 LP |
64 | WATCH_UNIT_TIMER, |
65 | WATCH_JOB_TIMER, | |
f94ea366 | 66 | WATCH_MOUNT, |
4e434314 | 67 | WATCH_SWAP, |
ea430986 LP |
68 | WATCH_UDEV, |
69 | WATCH_DBUS_WATCH, | |
70 | WATCH_DBUS_TIMEOUT | |
acbb0225 LP |
71 | }; |
72 | ||
73 | struct Watch { | |
74 | int fd; | |
75 | WatchType type; | |
ea430986 LP |
76 | union { |
77 | union Unit *unit; | |
faf919f1 | 78 | struct Job *job; |
ea430986 LP |
79 | DBusWatch *bus_watch; |
80 | DBusTimeout *bus_timeout; | |
81 | } data; | |
cabab516 LP |
82 | bool fd_is_dupped:1; |
83 | bool socket_accept:1; | |
acbb0225 | 84 | }; |
60918275 | 85 | |
87f0e418 | 86 | #include "unit.h" |
60918275 LP |
87 | #include "job.h" |
88 | #include "hashmap.h" | |
89 | #include "list.h" | |
90 | #include "set.h" | |
ea430986 | 91 | #include "dbus.h" |
84e3543e | 92 | #include "path-lookup.h" |
60918275 LP |
93 | |
94 | struct Manager { | |
87f0e418 | 95 | /* Note that the set of units we know of is allowed to be |
87d1515d LP |
96 | * incosistent. However the subset of it that is loaded may |
97 | * not, and the list of jobs may neither. */ | |
98 | ||
87f0e418 LP |
99 | /* Active jobs and units */ |
100 | Hashmap *units; /* name string => Unit object n:1 */ | |
60918275 LP |
101 | Hashmap *jobs; /* job id => Job object 1:1 */ |
102 | ||
ef734fd6 LP |
103 | /* To make it easy to iterate through the units of a specific |
104 | * type we maintain a per type linked list */ | |
105 | LIST_HEAD(Meta, units_per_type[_UNIT_TYPE_MAX]); | |
106 | ||
87f0e418 | 107 | /* Units that need to be loaded */ |
60918275 LP |
108 | LIST_HEAD(Meta, load_queue); /* this is actually more a stack than a queue, but uh. */ |
109 | ||
034c6ed7 LP |
110 | /* Jobs that need to be run */ |
111 | LIST_HEAD(Job, run_queue); /* more a stack than a queue, too */ | |
112 | ||
c1e1601e LP |
113 | /* Units and jobs that have not yet been announced via |
114 | * D-Bus. When something about a job changes it is added here | |
115 | * if it is not in there yet. This allows easy coalescing of | |
116 | * D-Bus change signals. */ | |
117 | LIST_HEAD(Meta, dbus_unit_queue); | |
118 | LIST_HEAD(Job, dbus_job_queue); | |
119 | ||
701cc384 | 120 | /* Units to remove */ |
23a177ef LP |
121 | LIST_HEAD(Meta, cleanup_queue); |
122 | ||
701cc384 LP |
123 | /* Units to check when doing GC */ |
124 | LIST_HEAD(Meta, gc_queue); | |
125 | ||
e5b5ae50 | 126 | /* Jobs to be added */ |
87f0e418 | 127 | Hashmap *transaction_jobs; /* Unit object => Job object list 1:1 */ |
e5b5ae50 | 128 | JobDependency *transaction_anchor; |
223dabab | 129 | |
87f0e418 | 130 | Hashmap *watch_pids; /* pid => Unit object n:1 */ |
9152c765 | 131 | |
c952c6ec LP |
132 | char *notify_socket; |
133 | ||
8c47c732 | 134 | Watch notify_watch; |
9d58f1db LP |
135 | Watch signal_watch; |
136 | ||
9152c765 | 137 | int epoll_fd; |
acbb0225 | 138 | |
9d58f1db | 139 | unsigned n_snapshots; |
ce578209 | 140 | |
84e3543e | 141 | LookupPaths lookup_paths; |
fe51822e | 142 | Set *unit_path_cache; |
036643a2 | 143 | |
1137a57c LP |
144 | char **environment; |
145 | ||
e9ddabc2 | 146 | dual_timestamp initrd_timestamp; |
63983207 | 147 | dual_timestamp startup_timestamp; |
b0c918b9 | 148 | dual_timestamp finish_timestamp; |
8d567588 | 149 | |
b2bb3dbe | 150 | char *console; |
5a1e9937 | 151 | char *generator_unit_path; |
b2bb3dbe | 152 | |
ef734fd6 | 153 | /* Data specific to the device subsystem */ |
25ac040b | 154 | struct udev* udev; |
f94ea366 LP |
155 | struct udev_monitor* udev_monitor; |
156 | Watch udev_watch; | |
8fe914ec | 157 | Hashmap *devices_by_sysfs; |
ef734fd6 LP |
158 | |
159 | /* Data specific to the mount subsystem */ | |
160 | FILE *proc_self_mountinfo; | |
161 | Watch mount_watch; | |
ea430986 | 162 | |
07b0b134 ML |
163 | /* Data specific to the swap filesystem */ |
164 | FILE *proc_swaps; | |
e04aad61 LP |
165 | Hashmap *swaps_by_proc_swaps; |
166 | bool request_reload; | |
4e434314 | 167 | Watch swap_watch; |
07b0b134 | 168 | |
ea430986 | 169 | /* Data specific to the D-Bus subsystem */ |
f278026d | 170 | DBusConnection *api_bus, *system_bus; |
5e8d1c9a LP |
171 | DBusServer *private_bus; |
172 | Set *bus_connections, *bus_connections_for_dispatch; | |
173 | ||
a16e1123 LP |
174 | DBusMessage *queued_message; /* This is used during reloading: |
175 | * before the reload we queue the | |
176 | * reply message here, and | |
177 | * afterwards we send it */ | |
7b97f477 | 178 | DBusConnection *queued_message_connection; /* The connection to send the queued message on */ |
8e274523 | 179 | |
05e343b7 LP |
180 | Hashmap *watch_bus; /* D-Bus names => Unit object n:1 */ |
181 | int32_t name_data_slot; | |
a567261a | 182 | int32_t subscribed_data_slot; |
05e343b7 | 183 | |
7fab9d01 LP |
184 | uint32_t current_job_id; |
185 | ||
9d58f1db LP |
186 | /* Data specific to the Automount subsystem */ |
187 | int dev_autofs_fd; | |
188 | ||
8e274523 LP |
189 | /* Data specific to the cgroup subsystem */ |
190 | Hashmap *cgroup_bondings; /* path string => CGroupBonding object 1:n */ | |
8e274523 | 191 | char *cgroup_hierarchy; |
e537352b | 192 | |
701cc384 | 193 | usec_t gc_queue_timestamp; |
701cc384 LP |
194 | int gc_marker; |
195 | unsigned n_in_gc_queue; | |
196 | ||
33be102a LP |
197 | /* Make sure the user cannot accidentaly unmount our cgroup |
198 | * file system */ | |
199 | int pin_cgroupfs_fd; | |
200 | ||
4927fcae LP |
201 | /* Audit fd */ |
202 | #ifdef HAVE_AUDIT | |
203 | int audit_fd; | |
204 | #endif | |
205 | ||
9d58f1db LP |
206 | /* Flags */ |
207 | ManagerRunningAs running_as; | |
b9080b03 | 208 | ManagerExitCode exit_code:5; |
41447faf | 209 | |
9d58f1db LP |
210 | bool dispatching_load_queue:1; |
211 | bool dispatching_run_queue:1; | |
212 | bool dispatching_dbus_queue:1; | |
213 | ||
9e58ff9c | 214 | bool show_status; |
f295f5c0 | 215 | bool confirm_spawn; |
07459bb6 | 216 | #ifdef HAVE_SYSV_COMPAT |
6e98720f | 217 | bool sysv_console; |
07459bb6 | 218 | #endif |
d3689161 | 219 | bool mount_auto; |
173a8d04 | 220 | bool swap_auto; |
d3689161 | 221 | |
7fab9d01 | 222 | int n_deserializing; |
e409f875 LP |
223 | |
224 | unsigned n_installed_jobs; | |
76bf48b7 | 225 | unsigned n_failed_jobs; |
60918275 LP |
226 | }; |
227 | ||
9e58ff9c | 228 | int manager_new(ManagerRunningAs running_as, Manager **m); |
60918275 LP |
229 | void manager_free(Manager *m); |
230 | ||
a16e1123 | 231 | int manager_enumerate(Manager *m); |
f50e0a01 | 232 | int manager_coldplug(Manager *m); |
a16e1123 | 233 | int manager_startup(Manager *m, FILE *serialization, FDSet *fds); |
f50e0a01 | 234 | |
60918275 | 235 | Job *manager_get_job(Manager *m, uint32_t id); |
87f0e418 | 236 | Unit *manager_get_unit(Manager *m, const char *name); |
60918275 | 237 | |
ea430986 | 238 | int manager_get_unit_from_dbus_path(Manager *m, const char *s, Unit **_u); |
86fbf370 | 239 | int manager_get_job_from_dbus_path(Manager *m, const char *s, Job **_j); |
ea430986 | 240 | |
398ef8ba LP |
241 | int manager_load_unit_prepare(Manager *m, const char *name, const char *path, DBusError *e, Unit **_ret); |
242 | int manager_load_unit(Manager *m, const char *name, const char *path, DBusError *e, Unit **_ret); | |
28247076 | 243 | |
398ef8ba LP |
244 | int manager_add_job(Manager *m, JobType type, Unit *unit, JobMode mode, bool force, DBusError *e, Job **_ret); |
245 | int manager_add_job_by_name(Manager *m, JobType type, const char *name, JobMode mode, bool force, DBusError *e, Job **_ret); | |
60918275 | 246 | |
87f0e418 | 247 | void manager_dump_units(Manager *s, FILE *f, const char *prefix); |
cea8e32e | 248 | void manager_dump_jobs(Manager *s, FILE *f, const char *prefix); |
a66d02c3 | 249 | |
23a177ef | 250 | void manager_transaction_unlink_job(Manager *m, Job *j, bool delete_dependencies); |
e5b5ae50 | 251 | |
7fad411c LP |
252 | void manager_clear_jobs(Manager *m); |
253 | ||
c1e1601e LP |
254 | unsigned manager_dispatch_load_queue(Manager *m); |
255 | unsigned manager_dispatch_run_queue(Manager *m); | |
256 | unsigned manager_dispatch_dbus_queue(Manager *m); | |
f50e0a01 | 257 | |
b2bb3dbe LP |
258 | int manager_set_console(Manager *m, const char *console); |
259 | ||
9152c765 | 260 | int manager_loop(Manager *m); |
83c60c9f | 261 | |
05e343b7 LP |
262 | void manager_dispatch_bus_name_owner_changed(Manager *m, const char *name, const char* old_owner, const char *new_owner); |
263 | void manager_dispatch_bus_query_pid_done(Manager *m, const char *name, pid_t pid); | |
264 | ||
d8d5ab98 | 265 | int manager_open_serialization(Manager *m, FILE **_f); |
a16e1123 LP |
266 | |
267 | int manager_serialize(Manager *m, FILE *f, FDSet *fds); | |
268 | int manager_deserialize(Manager *m, FILE *f, FDSet *fds); | |
269 | ||
270 | int manager_reload(Manager *m); | |
271 | ||
9e58ff9c LP |
272 | bool manager_is_booting_or_shutting_down(Manager *m); |
273 | ||
fdf20a31 | 274 | void manager_reset_failed(Manager *m); |
5632e374 | 275 | |
4927fcae | 276 | void manager_send_unit_audit(Manager *m, Unit *u, int type, bool success); |
e983b760 | 277 | void manager_send_unit_plymouth(Manager *m, Unit *u); |
4927fcae | 278 | |
8f6df3fa LP |
279 | bool manager_unit_pending_inactive(Manager *m, const char *name); |
280 | ||
b0c918b9 LP |
281 | void manager_check_finished(Manager *m); |
282 | ||
5a1e9937 LP |
283 | void manager_run_generators(Manager *m); |
284 | void manager_undo_generators(Manager *m); | |
285 | ||
05e343b7 LP |
286 | const char *manager_running_as_to_string(ManagerRunningAs i); |
287 | ManagerRunningAs manager_running_as_from_string(const char *s); | |
288 | ||
60918275 | 289 | #endif |