X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=manager.h;h=45fb0944b9b1f04966465e80252019a93b9acb6d;hp=0c923fcc792106ac6cd3e4f348c3fd9708314afe;hb=dfcd764ea64a61280eeb3902505b58aca06111f9;hpb=ce578209aa4e061aa38d3a4727612bb388307bf9

diff --git a/manager.h b/manager.h
index 0c923fcc7..45fb0944b 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 <http://www.gnu.org/licenses/>.
+***/
+
 #include <stdbool.h>
 #include <inttypes.h>
 #include <stdio.h>
 
+#include <dbus/dbus.h>
+
 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_USER,      /* 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"
@@ -29,15 +67,19 @@ struct Watch {
 #include "hashmap.h"
 #include "list.h"
 #include "set.h"
+#include "dbus.h"
 
-typedef enum SpecialUnit {
-        SPECIAL_SYSLOG_SERVICE,
-        SPECIAL_DBUS_SERVICE,
-        SPECIAL_LOGGER_SOCKET,
-        _SPECIAL_UNIT_MAX
-} SpecialUnit;
+#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"
 
 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
@@ -48,18 +90,32 @@ 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;
 
         Hashmap *watch_pids;  /* pid => Unit object n:1 */
 
@@ -67,15 +123,31 @@ struct Manager {
 
         Watch signal_watch;
 
-        Unit *special_units[_SPECIAL_UNIT_MAX]; /* some special units */
+        /* 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;
+        Set *subscribed;
 };
 
 Manager* manager_new(void);
 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);
 
@@ -86,7 +158,13 @@ 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