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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, | |
44 | _MANAGER_EXIT_CODE_MAX, | |
45 | _MANAGER_EXIT_CODE_INVALID = -1 | |
46 | } ManagerExitCode; | |
47 | ||
dfcd764e | 48 | typedef enum ManagerRunningAs { |
a3d4e06d LP |
49 | MANAGER_SYSTEM, |
50 | MANAGER_SESSION, | |
dfcd764e LP |
51 | _MANAGER_RUNNING_AS_MAX, |
52 | _MANAGER_RUNNING_AS_INVALID = -1 | |
53 | } ManagerRunningAs; | |
54 | ||
acbb0225 LP |
55 | enum WatchType { |
56 | WATCH_INVALID, | |
ef734fd6 | 57 | WATCH_SIGNAL, |
8c47c732 | 58 | WATCH_NOTIFY, |
acbb0225 | 59 | WATCH_FD, |
faf919f1 LP |
60 | WATCH_UNIT_TIMER, |
61 | WATCH_JOB_TIMER, | |
f94ea366 | 62 | WATCH_MOUNT, |
ea430986 LP |
63 | WATCH_UDEV, |
64 | WATCH_DBUS_WATCH, | |
65 | WATCH_DBUS_TIMEOUT | |
acbb0225 LP |
66 | }; |
67 | ||
68 | struct Watch { | |
69 | int fd; | |
70 | WatchType type; | |
ea430986 LP |
71 | union { |
72 | union Unit *unit; | |
faf919f1 | 73 | struct Job *job; |
ea430986 LP |
74 | DBusWatch *bus_watch; |
75 | DBusTimeout *bus_timeout; | |
76 | } data; | |
cabab516 LP |
77 | bool fd_is_dupped:1; |
78 | bool socket_accept:1; | |
acbb0225 | 79 | }; |
60918275 | 80 | |
87f0e418 | 81 | #include "unit.h" |
60918275 LP |
82 | #include "job.h" |
83 | #include "hashmap.h" | |
84 | #include "list.h" | |
85 | #include "set.h" | |
ea430986 | 86 | #include "dbus.h" |
84e3543e | 87 | #include "path-lookup.h" |
60918275 LP |
88 | |
89 | struct Manager { | |
87f0e418 | 90 | /* Note that the set of units we know of is allowed to be |
87d1515d LP |
91 | * incosistent. However the subset of it that is loaded may |
92 | * not, and the list of jobs may neither. */ | |
93 | ||
87f0e418 LP |
94 | /* Active jobs and units */ |
95 | Hashmap *units; /* name string => Unit object n:1 */ | |
60918275 LP |
96 | Hashmap *jobs; /* job id => Job object 1:1 */ |
97 | ||
ef734fd6 LP |
98 | /* To make it easy to iterate through the units of a specific |
99 | * type we maintain a per type linked list */ | |
100 | LIST_HEAD(Meta, units_per_type[_UNIT_TYPE_MAX]); | |
101 | ||
87f0e418 | 102 | /* Units that need to be loaded */ |
60918275 LP |
103 | LIST_HEAD(Meta, load_queue); /* this is actually more a stack than a queue, but uh. */ |
104 | ||
034c6ed7 LP |
105 | /* Jobs that need to be run */ |
106 | LIST_HEAD(Job, run_queue); /* more a stack than a queue, too */ | |
107 | ||
c1e1601e LP |
108 | /* Units and jobs that have not yet been announced via |
109 | * D-Bus. When something about a job changes it is added here | |
110 | * if it is not in there yet. This allows easy coalescing of | |
111 | * D-Bus change signals. */ | |
112 | LIST_HEAD(Meta, dbus_unit_queue); | |
113 | LIST_HEAD(Job, dbus_job_queue); | |
114 | ||
701cc384 | 115 | /* Units to remove */ |
23a177ef LP |
116 | LIST_HEAD(Meta, cleanup_queue); |
117 | ||
701cc384 LP |
118 | /* Units to check when doing GC */ |
119 | LIST_HEAD(Meta, gc_queue); | |
120 | ||
e5b5ae50 | 121 | /* Jobs to be added */ |
87f0e418 | 122 | Hashmap *transaction_jobs; /* Unit object => Job object list 1:1 */ |
e5b5ae50 | 123 | JobDependency *transaction_anchor; |
223dabab | 124 | |
87f0e418 | 125 | Hashmap *watch_pids; /* pid => Unit object n:1 */ |
9152c765 | 126 | |
c952c6ec LP |
127 | char *notify_socket; |
128 | ||
8c47c732 | 129 | Watch notify_watch; |
9d58f1db LP |
130 | Watch signal_watch; |
131 | ||
9152c765 | 132 | int epoll_fd; |
acbb0225 | 133 | |
9d58f1db | 134 | unsigned n_snapshots; |
ce578209 | 135 | |
84e3543e | 136 | LookupPaths lookup_paths; |
fe51822e | 137 | Set *unit_path_cache; |
036643a2 | 138 | |
1137a57c LP |
139 | char **environment; |
140 | ||
63983207 | 141 | dual_timestamp startup_timestamp; |
8d567588 | 142 | |
ef734fd6 | 143 | /* Data specific to the device subsystem */ |
25ac040b | 144 | struct udev* udev; |
f94ea366 LP |
145 | struct udev_monitor* udev_monitor; |
146 | Watch udev_watch; | |
8fe914ec | 147 | Hashmap *devices_by_sysfs; |
ef734fd6 LP |
148 | |
149 | /* Data specific to the mount subsystem */ | |
150 | FILE *proc_self_mountinfo; | |
151 | Watch mount_watch; | |
ea430986 | 152 | |
07b0b134 ML |
153 | /* Data specific to the swap filesystem */ |
154 | FILE *proc_swaps; | |
155 | ||
ea430986 | 156 | /* Data specific to the D-Bus subsystem */ |
f278026d | 157 | DBusConnection *api_bus, *system_bus; |
5e8d1c9a LP |
158 | DBusServer *private_bus; |
159 | Set *bus_connections, *bus_connections_for_dispatch; | |
160 | ||
a16e1123 LP |
161 | DBusMessage *queued_message; /* This is used during reloading: |
162 | * before the reload we queue the | |
163 | * reply message here, and | |
164 | * afterwards we send it */ | |
7b97f477 | 165 | DBusConnection *queued_message_connection; /* The connection to send the queued message on */ |
8e274523 | 166 | |
05e343b7 LP |
167 | Hashmap *watch_bus; /* D-Bus names => Unit object n:1 */ |
168 | int32_t name_data_slot; | |
a567261a | 169 | int32_t subscribed_data_slot; |
05e343b7 | 170 | |
7fab9d01 LP |
171 | uint32_t current_job_id; |
172 | ||
9d58f1db LP |
173 | /* Data specific to the Automount subsystem */ |
174 | int dev_autofs_fd; | |
175 | ||
8e274523 LP |
176 | /* Data specific to the cgroup subsystem */ |
177 | Hashmap *cgroup_bondings; /* path string => CGroupBonding object 1:n */ | |
8e274523 | 178 | char *cgroup_hierarchy; |
e537352b | 179 | |
701cc384 | 180 | usec_t gc_queue_timestamp; |
701cc384 LP |
181 | int gc_marker; |
182 | unsigned n_in_gc_queue; | |
183 | ||
33be102a LP |
184 | /* Make sure the user cannot accidentaly unmount our cgroup |
185 | * file system */ | |
186 | int pin_cgroupfs_fd; | |
187 | ||
4927fcae LP |
188 | /* Audit fd */ |
189 | #ifdef HAVE_AUDIT | |
190 | int audit_fd; | |
191 | #endif | |
192 | ||
9d58f1db LP |
193 | /* Flags */ |
194 | ManagerRunningAs running_as; | |
195 | ManagerExitCode exit_code:4; | |
41447faf | 196 | |
9d58f1db LP |
197 | bool dispatching_load_queue:1; |
198 | bool dispatching_run_queue:1; | |
199 | bool dispatching_dbus_queue:1; | |
200 | ||
9e58ff9c | 201 | bool show_status; |
f295f5c0 | 202 | bool confirm_spawn; |
6e98720f | 203 | bool sysv_console; |
7fab9d01 | 204 | |
d3689161 LP |
205 | bool mount_on_plug; |
206 | bool swap_on_plug; | |
207 | bool mount_auto; | |
208 | ||
7fab9d01 | 209 | int n_deserializing; |
60918275 LP |
210 | }; |
211 | ||
9e58ff9c | 212 | int manager_new(ManagerRunningAs running_as, Manager **m); |
60918275 LP |
213 | void manager_free(Manager *m); |
214 | ||
a16e1123 | 215 | int manager_enumerate(Manager *m); |
f50e0a01 | 216 | int manager_coldplug(Manager *m); |
a16e1123 | 217 | int manager_startup(Manager *m, FILE *serialization, FDSet *fds); |
f50e0a01 | 218 | |
60918275 | 219 | Job *manager_get_job(Manager *m, uint32_t id); |
87f0e418 | 220 | Unit *manager_get_unit(Manager *m, const char *name); |
60918275 | 221 | |
ea430986 | 222 | int manager_get_unit_from_dbus_path(Manager *m, const char *s, Unit **_u); |
86fbf370 | 223 | int manager_get_job_from_dbus_path(Manager *m, const char *s, Job **_j); |
ea430986 | 224 | |
398ef8ba LP |
225 | int manager_load_unit_prepare(Manager *m, const char *name, const char *path, DBusError *e, Unit **_ret); |
226 | int manager_load_unit(Manager *m, const char *name, const char *path, DBusError *e, Unit **_ret); | |
28247076 | 227 | |
398ef8ba LP |
228 | int manager_add_job(Manager *m, JobType type, Unit *unit, JobMode mode, bool force, DBusError *e, Job **_ret); |
229 | int manager_add_job_by_name(Manager *m, JobType type, const char *name, JobMode mode, bool force, DBusError *e, Job **_ret); | |
60918275 | 230 | |
87f0e418 | 231 | void manager_dump_units(Manager *s, FILE *f, const char *prefix); |
cea8e32e | 232 | void manager_dump_jobs(Manager *s, FILE *f, const char *prefix); |
a66d02c3 | 233 | |
23a177ef | 234 | void manager_transaction_unlink_job(Manager *m, Job *j, bool delete_dependencies); |
e5b5ae50 | 235 | |
7fad411c LP |
236 | void manager_clear_jobs(Manager *m); |
237 | ||
c1e1601e LP |
238 | unsigned manager_dispatch_load_queue(Manager *m); |
239 | unsigned manager_dispatch_run_queue(Manager *m); | |
240 | unsigned manager_dispatch_dbus_queue(Manager *m); | |
f50e0a01 | 241 | |
9152c765 | 242 | int manager_loop(Manager *m); |
83c60c9f | 243 | |
05e343b7 LP |
244 | void manager_dispatch_bus_name_owner_changed(Manager *m, const char *name, const char* old_owner, const char *new_owner); |
245 | void manager_dispatch_bus_query_pid_done(Manager *m, const char *name, pid_t pid); | |
246 | ||
d8d5ab98 | 247 | int manager_open_serialization(Manager *m, FILE **_f); |
a16e1123 LP |
248 | |
249 | int manager_serialize(Manager *m, FILE *f, FDSet *fds); | |
250 | int manager_deserialize(Manager *m, FILE *f, FDSet *fds); | |
251 | ||
252 | int manager_reload(Manager *m); | |
253 | ||
9e58ff9c LP |
254 | bool manager_is_booting_or_shutting_down(Manager *m); |
255 | ||
5632e374 LP |
256 | void manager_reset_maintenance(Manager *m); |
257 | ||
4927fcae LP |
258 | void manager_send_unit_audit(Manager *m, Unit *u, int type, bool success); |
259 | ||
05e343b7 LP |
260 | const char *manager_running_as_to_string(ManagerRunningAs i); |
261 | ManagerRunningAs manager_running_as_from_string(const char *s); | |
262 | ||
60918275 | 263 | #endif |