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60918275 LP |
1 | /*-*- Mode: C; c-basic-offset: 8 -*-*/ |
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> |
60918275 | 28 | |
ea430986 LP |
29 | #include <dbus/dbus.h> |
30 | ||
60918275 | 31 | typedef struct Manager Manager; |
acbb0225 LP |
32 | typedef enum WatchType WatchType; |
33 | typedef struct Watch Watch; | |
34 | ||
35 | enum WatchType { | |
36 | WATCH_INVALID, | |
ef734fd6 | 37 | WATCH_SIGNAL, |
acbb0225 | 38 | WATCH_FD, |
ef734fd6 | 39 | WATCH_TIMER, |
f94ea366 | 40 | WATCH_MOUNT, |
ea430986 LP |
41 | WATCH_UDEV, |
42 | WATCH_DBUS_WATCH, | |
43 | WATCH_DBUS_TIMEOUT | |
acbb0225 LP |
44 | }; |
45 | ||
46 | struct Watch { | |
47 | int fd; | |
48 | WatchType type; | |
ea430986 LP |
49 | bool fd_is_dupped; |
50 | union { | |
51 | union Unit *unit; | |
52 | DBusWatch *bus_watch; | |
53 | DBusTimeout *bus_timeout; | |
54 | } data; | |
acbb0225 | 55 | }; |
60918275 | 56 | |
87f0e418 | 57 | #include "unit.h" |
60918275 LP |
58 | #include "job.h" |
59 | #include "hashmap.h" | |
60 | #include "list.h" | |
61 | #include "set.h" | |
ea430986 | 62 | #include "dbus.h" |
60918275 | 63 | |
f50e0a01 LP |
64 | #define SPECIAL_DEFAULT_TARGET "default.target" |
65 | #define SPECIAL_SYSLOG_SERVICE "syslog.service" | |
66 | #define SPECIAL_DBUS_SERVICE "messagebus.service" | |
67 | #define SPECIAL_LOGGER_SOCKET "systemd-logger.socket" | |
68 | #define SPECIAL_KBREQUEST_TARGET "kbrequest.target" | |
69 | #define SPECIAL_CTRL_ALT_DEL_TARGET "ctrl-alt-del.target" | |
ce578209 | 70 | |
60918275 LP |
71 | struct Manager { |
72 | uint32_t current_job_id; | |
73 | ||
87f0e418 | 74 | /* Note that the set of units we know of is allowed to be |
87d1515d LP |
75 | * incosistent. However the subset of it that is loaded may |
76 | * not, and the list of jobs may neither. */ | |
77 | ||
87f0e418 LP |
78 | /* Active jobs and units */ |
79 | Hashmap *units; /* name string => Unit object n:1 */ | |
60918275 LP |
80 | Hashmap *jobs; /* job id => Job object 1:1 */ |
81 | ||
ef734fd6 LP |
82 | /* To make it easy to iterate through the units of a specific |
83 | * type we maintain a per type linked list */ | |
84 | LIST_HEAD(Meta, units_per_type[_UNIT_TYPE_MAX]); | |
85 | ||
87f0e418 | 86 | /* Units that need to be loaded */ |
60918275 LP |
87 | LIST_HEAD(Meta, load_queue); /* this is actually more a stack than a queue, but uh. */ |
88 | ||
034c6ed7 LP |
89 | /* Jobs that need to be run */ |
90 | LIST_HEAD(Job, run_queue); /* more a stack than a queue, too */ | |
91 | ||
c1e1601e LP |
92 | /* Units and jobs that have not yet been announced via |
93 | * D-Bus. When something about a job changes it is added here | |
94 | * if it is not in there yet. This allows easy coalescing of | |
95 | * D-Bus change signals. */ | |
96 | LIST_HEAD(Meta, dbus_unit_queue); | |
97 | LIST_HEAD(Job, dbus_job_queue); | |
98 | ||
e5b5ae50 | 99 | /* Jobs to be added */ |
87f0e418 | 100 | Hashmap *transaction_jobs; /* Unit object => Job object list 1:1 */ |
e5b5ae50 | 101 | JobDependency *transaction_anchor; |
223dabab LP |
102 | |
103 | bool dispatching_load_queue:1; | |
034c6ed7 | 104 | bool dispatching_run_queue:1; |
c1e1601e | 105 | bool dispatching_dbus_queue:1; |
5cb5a6ff | 106 | |
ea430986 LP |
107 | bool is_init:1; |
108 | ||
109 | bool request_bus_dispatch:1; | |
110 | ||
87f0e418 | 111 | Hashmap *watch_pids; /* pid => Unit object n:1 */ |
9152c765 LP |
112 | |
113 | int epoll_fd; | |
acbb0225 LP |
114 | |
115 | Watch signal_watch; | |
ce578209 | 116 | |
ef734fd6 | 117 | /* Data specific to the device subsystem */ |
25ac040b | 118 | struct udev* udev; |
f94ea366 LP |
119 | struct udev_monitor* udev_monitor; |
120 | Watch udev_watch; | |
ef734fd6 LP |
121 | |
122 | /* Data specific to the mount subsystem */ | |
123 | FILE *proc_self_mountinfo; | |
124 | Watch mount_watch; | |
ea430986 LP |
125 | |
126 | /* Data specific to the D-Bus subsystem */ | |
127 | DBusConnection *bus; | |
c1e1601e | 128 | Set *subscribed; |
60918275 LP |
129 | }; |
130 | ||
131 | Manager* manager_new(void); | |
132 | void manager_free(Manager *m); | |
133 | ||
f50e0a01 LP |
134 | int manager_coldplug(Manager *m); |
135 | ||
60918275 | 136 | Job *manager_get_job(Manager *m, uint32_t id); |
87f0e418 | 137 | Unit *manager_get_unit(Manager *m, const char *name); |
60918275 | 138 | |
ea430986 | 139 | int manager_get_unit_from_dbus_path(Manager *m, const char *s, Unit **_u); |
86fbf370 | 140 | int manager_get_job_from_dbus_path(Manager *m, const char *s, Job **_j); |
ea430986 | 141 | |
0301abf4 | 142 | int manager_load_unit(Manager *m, const char *path_or_name, Unit **_ret); |
87f0e418 | 143 | int manager_add_job(Manager *m, JobType type, Unit *unit, JobMode mode, bool force, Job **_ret); |
60918275 | 144 | |
87f0e418 | 145 | void manager_dump_units(Manager *s, FILE *f, const char *prefix); |
cea8e32e | 146 | void manager_dump_jobs(Manager *s, FILE *f, const char *prefix); |
a66d02c3 | 147 | |
302d0040 | 148 | void manager_transaction_unlink_job(Manager *m, Job *j); |
e5b5ae50 | 149 | |
7fad411c LP |
150 | void manager_clear_jobs(Manager *m); |
151 | ||
c1e1601e LP |
152 | unsigned manager_dispatch_load_queue(Manager *m); |
153 | unsigned manager_dispatch_run_queue(Manager *m); | |
154 | unsigned manager_dispatch_dbus_queue(Manager *m); | |
f50e0a01 | 155 | |
9152c765 | 156 | int manager_loop(Manager *m); |
83c60c9f | 157 | |
60918275 | 158 | #endif |