X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=manager.h;h=a361748374a3c2900c9daa9f37bd9ee071aa7f41;hp=a00a9b9cc28730c6535aed1ac8921b05f03febce;hb=0fd030bea1afa032d9afc791db4165a6848604b8;hpb=98b5b2986fa1b85fd2d2e80f867f1647b4e4e3b5
diff --git a/manager.h b/manager.h
index a00a9b9cc..a36174837 100644
--- a/manager.h
+++ b/manager.h
@@ -3,25 +3,63 @@
#ifndef foomanagerhfoo
#define foomanagerhfoo
+/***
+ This file is part of systemd.
+
+ Copyright 2010 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with systemd; If not, see .
+***/
+
#include
#include
#include
+#include
+
typedef struct Manager Manager;
typedef enum WatchType WatchType;
typedef struct Watch Watch;
+typedef enum ManagerRunningAs {
+ MANAGER_INIT, /* root and pid=1 */
+ MANAGER_SYSTEM, /* root and pid!=1 */
+ MANAGER_SESSION, /* non-root */
+ _MANAGER_RUNNING_AS_MAX,
+ _MANAGER_RUNNING_AS_INVALID = -1
+} ManagerRunningAs;
+
enum WatchType {
WATCH_INVALID,
- WATCH_SIGNAL_FD,
+ WATCH_SIGNAL,
WATCH_FD,
- WATCH_TIMER
+ WATCH_TIMER,
+ WATCH_MOUNT,
+ WATCH_UDEV,
+ WATCH_DBUS_WATCH,
+ WATCH_DBUS_TIMEOUT
};
struct Watch {
int fd;
WatchType type;
- union Unit *unit;
+ bool fd_is_dupped;
+ union {
+ union Unit *unit;
+ DBusWatch *bus_watch;
+ DBusTimeout *bus_timeout;
+ } data;
};
#include "unit.h"
@@ -29,17 +67,37 @@ struct Watch {
#include "hashmap.h"
#include "list.h"
#include "set.h"
-
-typedef enum SpecialUnit {
- SPECIAL_SYSLOG_SERVICE,
- SPECIAL_DBUS_SERVICE,
- SPECIAL_LOGGER_SOCKET,
- SPECIAL_CTRL_ALT_DEL_TARGET,
- SPECIAL_KBREQUEST_TARGET,
- _SPECIAL_UNIT_MAX
-} SpecialUnit;
+#include "dbus.h"
+
+#define SPECIAL_DEFAULT_TARGET "default.target"
+#define SPECIAL_SYSLOG_SERVICE "syslog.service"
+#define SPECIAL_DBUS_SERVICE "messagebus.service"
+#define SPECIAL_LOGGER_SOCKET "systemd-logger.socket"
+#define SPECIAL_KBREQUEST_TARGET "kbrequest.target"
+#define SPECIAL_CTRL_ALT_DEL_TARGET "ctrl-alt-del.target"
+#define SPECIAL_LOCAL_FS_TARGET "local-fs.target"
+#define SPECIAL_NETWORK_TARGET "network.target"
+#define SPECIAL_NSS_LOOKUP_TARGET "nss-lookup.target" /* LSB's $named */
+#define SPECIAL_RPCBIND_TARGET "rpcbind.target" /* LSB's $portmap */
+#define SPECIAL_REMOTE_FS_TARGET "remote-fs.target"
+#define SPECIAL_SYSLOG_TARGET "syslog.target" /* Should pull in syslog.socket or syslog.service */
+#define SPECIAL_RTC_SET_TARGET "rtc-set.target" /* LSB's $time */
+#define SPECIAL_SYSINIT_SERVICE "sysinit.service"
+
+/* For SysV compatibility. Usually an alias for a saner target. On
+ * SysV-free systems this doesn't exist. */
+#define SPECIAL_RUNLEVEL0_TARGET "runlevel0.target"
+#define SPECIAL_RUNLEVEL1_TARGET "runlevel1.target"
+#define SPECIAL_RUNLEVEL2_TARGET "runlevel2.target"
+#define SPECIAL_RUNLEVEL3_TARGET "runlevel3.target"
+#define SPECIAL_RUNLEVEL4_TARGET "runlevel4.target"
+#define SPECIAL_RUNLEVEL5_TARGET "runlevel5.target"
+#define SPECIAL_RUNLEVEL6_TARGET "runlevel6.target"
struct Manager {
+ /* In which mode are we running */
+ ManagerRunningAs running_as;
+
uint32_t current_job_id;
/* Note that the set of units we know of is allowed to be
@@ -50,18 +108,33 @@ struct Manager {
Hashmap *units; /* name string => Unit object n:1 */
Hashmap *jobs; /* job id => Job object 1:1 */
+ /* To make it easy to iterate through the units of a specific
+ * type we maintain a per type linked list */
+ LIST_HEAD(Meta, units_per_type[_UNIT_TYPE_MAX]);
+
/* Units that need to be loaded */
LIST_HEAD(Meta, load_queue); /* this is actually more a stack than a queue, but uh. */
/* Jobs that need to be run */
LIST_HEAD(Job, run_queue); /* more a stack than a queue, too */
+ /* Units and jobs that have not yet been announced via
+ * D-Bus. When something about a job changes it is added here
+ * if it is not in there yet. This allows easy coalescing of
+ * D-Bus change signals. */
+ LIST_HEAD(Meta, dbus_unit_queue);
+ LIST_HEAD(Job, dbus_job_queue);
+
/* Jobs to be added */
Hashmap *transaction_jobs; /* Unit object => Job object list 1:1 */
JobDependency *transaction_anchor;
bool dispatching_load_queue:1;
bool dispatching_run_queue:1;
+ bool dispatching_dbus_queue:1;
+
+ bool request_bus_dispatch:1;
+ bool request_system_bus_dispatch:1;
Hashmap *watch_pids; /* pid => Unit object n:1 */
@@ -69,15 +142,39 @@ struct Manager {
Watch signal_watch;
- Unit *special_units[_SPECIAL_UNIT_MAX]; /* some special units */
+ char **unit_path;
+ char **sysvinit_path;
+
+ /* Data specific to the device subsystem */
+ struct udev* udev;
+ struct udev_monitor* udev_monitor;
+ Watch udev_watch;
+
+ /* Data specific to the mount subsystem */
+ FILE *proc_self_mountinfo;
+ Watch mount_watch;
+
+ /* Data specific to the D-Bus subsystem */
+ DBusConnection *bus, *system_bus;
+ Set *subscribed;
+
+ /* Data specific to the cgroup subsystem */
+ Hashmap *cgroup_bondings; /* path string => CGroupBonding object 1:n */
+ char *cgroup_controller;
+ char *cgroup_hierarchy;
};
-Manager* manager_new(void);
+int manager_new(Manager **m);
void manager_free(Manager *m);
+int manager_coldplug(Manager *m);
+
Job *manager_get_job(Manager *m, uint32_t id);
Unit *manager_get_unit(Manager *m, const char *name);
+int manager_get_unit_from_dbus_path(Manager *m, const char *s, Unit **_u);
+int manager_get_job_from_dbus_path(Manager *m, const char *s, Job **_j);
+
int manager_load_unit(Manager *m, const char *path_or_name, Unit **_ret);
int manager_add_job(Manager *m, JobType type, Unit *unit, JobMode mode, bool force, Job **_ret);
@@ -88,7 +185,13 @@ void manager_transaction_unlink_job(Manager *m, Job *j);
void manager_clear_jobs(Manager *m);
-void manager_dispatch_run_queue(Manager *m);
+unsigned manager_dispatch_load_queue(Manager *m);
+unsigned manager_dispatch_run_queue(Manager *m);
+unsigned manager_dispatch_dbus_queue(Manager *m);
+
int manager_loop(Manager *m);
+const char *manager_running_as_to_string(ManagerRunningAs i);
+ManagerRunningAs manager_running_as_from_string(const char *s);
+
#endif