1 /*-*- Mode: C; c-basic-offset: 8 -*-*/
7 This file is part of systemd.
9 Copyright 2010 Lennart Poettering
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.
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.
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/>.
29 #include <dbus/dbus.h>
31 typedef struct Manager Manager;
32 typedef enum WatchType WatchType;
33 typedef struct Watch Watch;
53 DBusTimeout *bus_timeout;
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"
72 uint32_t current_job_id;
74 /* Note that the set of units we know of is allowed to be
75 * incosistent. However the subset of it that is loaded may
76 * not, and the list of jobs may neither. */
78 /* Active jobs and units */
79 Hashmap *units; /* name string => Unit object n:1 */
80 Hashmap *jobs; /* job id => Job object 1:1 */
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]);
86 /* Units that need to be loaded */
87 LIST_HEAD(Meta, load_queue); /* this is actually more a stack than a queue, but uh. */
89 /* Jobs that need to be run */
90 LIST_HEAD(Job, run_queue); /* more a stack than a queue, too */
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);
99 /* Jobs to be added */
100 Hashmap *transaction_jobs; /* Unit object => Job object list 1:1 */
101 JobDependency *transaction_anchor;
103 bool dispatching_load_queue:1;
104 bool dispatching_run_queue:1;
105 bool dispatching_dbus_queue:1;
109 bool request_bus_dispatch:1;
111 Hashmap *watch_pids; /* pid => Unit object n:1 */
117 /* Data specific to the device subsystem */
119 struct udev_monitor* udev_monitor;
122 /* Data specific to the mount subsystem */
123 FILE *proc_self_mountinfo;
126 /* Data specific to the D-Bus subsystem */
131 Manager* manager_new(void);
132 void manager_free(Manager *m);
134 int manager_coldplug(Manager *m);
136 Job *manager_get_job(Manager *m, uint32_t id);
137 Unit *manager_get_unit(Manager *m, const char *name);
139 int manager_get_unit_from_dbus_path(Manager *m, const char *s, Unit **_u);
140 int manager_get_job_from_dbus_path(Manager *m, const char *s, Job **_j);
142 int manager_load_unit(Manager *m, const char *path_or_name, Unit **_ret);
143 int manager_add_job(Manager *m, JobType type, Unit *unit, JobMode mode, bool force, Job **_ret);
145 void manager_dump_units(Manager *s, FILE *f, const char *prefix);
146 void manager_dump_jobs(Manager *s, FILE *f, const char *prefix);
148 void manager_transaction_unlink_job(Manager *m, Job *j);
150 void manager_clear_jobs(Manager *m);
152 unsigned manager_dispatch_load_queue(Manager *m);
153 unsigned manager_dispatch_run_queue(Manager *m);
154 unsigned manager_dispatch_dbus_queue(Manager *m);
156 int manager_loop(Manager *m);