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
;
35 typedef enum ManagerRunningAs
{
36 MANAGER_INIT
, /* root and pid=1 */
37 MANAGER_SYSTEM
, /* root and pid!=1 */
38 MANAGER_SESSION
, /* non-root, for a session */
39 _MANAGER_RUNNING_AS_MAX
,
40 _MANAGER_RUNNING_AS_INVALID
= -1
61 DBusTimeout
*bus_timeout
;
72 #define SPECIAL_DEFAULT_TARGET "default.target"
74 #define SPECIAL_LOGGER_SOCKET "systemd-logger.socket"
76 #define SPECIAL_KBREQUEST_TARGET "kbrequest.target"
77 #define SPECIAL_SIGPWR_TARGET "sigpwr.target"
78 #define SPECIAL_CTRL_ALT_DEL_TARGET "ctrl-alt-del.target"
80 #define SPECIAL_LOCAL_FS_TARGET "local-fs.target"
81 #define SPECIAL_REMOTE_FS_TARGET "remote-fs.target"
82 #define SPECIAL_NETWORK_TARGET "network.target"
83 #define SPECIAL_NSS_LOOKUP_TARGET "nss-lookup.target" /* LSB's $named */
84 #define SPECIAL_RPCBIND_TARGET "rpcbind.target" /* LSB's $portmap */
85 #define SPECIAL_SYSLOG_TARGET "syslog.target" /* Should pull in syslog.socket or syslog.service */
86 #define SPECIAL_RTC_SET_TARGET "rtc-set.target" /* LSB's $time */
88 #define SPECIAL_BASIC_TARGET "basic.target"
89 #define SPECIAL_RESCUE_TARGET "rescue.target"
91 #ifndef SPECIAL_DBUS_SERVICE
92 #define SPECIAL_DBUS_SERVICE "dbus.service"
95 #ifndef SPECIAL_SYSLOG_SERVICE
96 #define SPECIAL_SYSLOG_SERVICE "syslog.service"
99 /* For SysV compatibility. Usually an alias for a saner target. On
100 * SysV-free systems this doesn't exist. */
101 #define SPECIAL_RUNLEVEL0_TARGET "runlevel0.target"
102 #define SPECIAL_RUNLEVEL1_TARGET "runlevel1.target"
103 #define SPECIAL_RUNLEVEL2_TARGET "runlevel2.target"
104 #define SPECIAL_RUNLEVEL3_TARGET "runlevel3.target"
105 #define SPECIAL_RUNLEVEL4_TARGET "runlevel4.target"
106 #define SPECIAL_RUNLEVEL5_TARGET "runlevel5.target"
107 #define SPECIAL_RUNLEVEL6_TARGET "runlevel6.target"
110 /* In which mode are we running */
111 ManagerRunningAs running_as
;
113 uint32_t current_job_id
;
115 /* Note that the set of units we know of is allowed to be
116 * incosistent. However the subset of it that is loaded may
117 * not, and the list of jobs may neither. */
119 /* Active jobs and units */
120 Hashmap
*units
; /* name string => Unit object n:1 */
121 Hashmap
*jobs
; /* job id => Job object 1:1 */
123 /* To make it easy to iterate through the units of a specific
124 * type we maintain a per type linked list */
125 LIST_HEAD(Meta
, units_per_type
[_UNIT_TYPE_MAX
]);
127 /* Units that need to be loaded */
128 LIST_HEAD(Meta
, load_queue
); /* this is actually more a stack than a queue, but uh. */
130 /* Jobs that need to be run */
131 LIST_HEAD(Job
, run_queue
); /* more a stack than a queue, too */
133 /* Units and jobs that have not yet been announced via
134 * D-Bus. When something about a job changes it is added here
135 * if it is not in there yet. This allows easy coalescing of
136 * D-Bus change signals. */
137 LIST_HEAD(Meta
, dbus_unit_queue
);
138 LIST_HEAD(Job
, dbus_job_queue
);
140 LIST_HEAD(Meta
, cleanup_queue
);
142 /* Jobs to be added */
143 Hashmap
*transaction_jobs
; /* Unit object => Job object list 1:1 */
144 JobDependency
*transaction_anchor
;
146 bool dispatching_load_queue
:1;
147 bool dispatching_run_queue
:1;
148 bool dispatching_dbus_queue
:1;
150 bool request_api_bus_dispatch
:1;
151 bool request_system_bus_dispatch
:1;
153 bool utmp_reboot_written
:1;
155 bool confirm_spawn
:1;
157 Hashmap
*watch_pids
; /* pid => Unit object n:1 */
164 char **sysvinit_path
;
165 char **sysvrcnd_path
;
167 /* Data specific to the device subsystem */
169 struct udev_monitor
* udev_monitor
;
172 /* Data specific to the mount subsystem */
173 FILE *proc_self_mountinfo
;
176 /* Data specific to the D-Bus subsystem */
177 DBusConnection
*api_bus
, *system_bus
;
180 /* Data specific to the cgroup subsystem */
181 Hashmap
*cgroup_bondings
; /* path string => CGroupBonding object 1:n */
182 char *cgroup_controller
;
183 char *cgroup_hierarchy
;
185 usec_t boot_timestamp
;
188 int manager_new(ManagerRunningAs running_as
, bool confirm_spawn
, Manager
**m
);
189 void manager_free(Manager
*m
);
191 int manager_coldplug(Manager
*m
);
193 Job
*manager_get_job(Manager
*m
, uint32_t id
);
194 Unit
*manager_get_unit(Manager
*m
, const char *name
);
196 int manager_get_unit_from_dbus_path(Manager
*m
, const char *s
, Unit
**_u
);
197 int manager_get_job_from_dbus_path(Manager
*m
, const char *s
, Job
**_j
);
199 int manager_load_unit(Manager
*m
, const char *path_or_name
, Unit
**_ret
);
201 int manager_add_job(Manager
*m
, JobType type
, Unit
*unit
, JobMode mode
, bool force
, Job
**_ret
);
202 int manager_add_job_by_name(Manager
*m
, JobType type
, const char *name
, JobMode mode
, bool force
, Job
**_ret
);
204 void manager_dump_units(Manager
*s
, FILE *f
, const char *prefix
);
205 void manager_dump_jobs(Manager
*s
, FILE *f
, const char *prefix
);
207 void manager_transaction_unlink_job(Manager
*m
, Job
*j
, bool delete_dependencies
);
209 void manager_clear_jobs(Manager
*m
);
211 unsigned manager_dispatch_load_queue(Manager
*m
);
212 unsigned manager_dispatch_run_queue(Manager
*m
);
213 unsigned manager_dispatch_dbus_queue(Manager
*m
);
215 int manager_loop(Manager
*m
);
217 const char *manager_running_as_to_string(ManagerRunningAs i
);
218 ManagerRunningAs
manager_running_as_from_string(const char *s
);
220 void manager_write_utmp_reboot(Manager
*m
);
222 void manager_write_utmp_runlevel(Manager
*m
, Unit
*t
);