X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=manager.h;h=0a09430f56b25b38be238aecbdd43987c1b0abf2;hp=88b8509cfe1c50679c456d894e2c9b086c8f4e16;hb=db06e3b6a5254ec247de5bc1a1b6a8670c2f4b2b;hpb=ef734fd6c2ec4e5602bbfe2a0d26dcf39c14d2bf
diff --git a/manager.h b/manager.h
index 88b8509cf..0a09430f5 100644
--- a/manager.h
+++ b/manager.h
@@ -3,26 +3,77 @@
#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
+
+#include "fdset.h"
+
+/* Enforce upper limit how many names we allow */
+#define MANAGER_MAX_NAMES 2048
typedef struct Manager Manager;
typedef enum WatchType WatchType;
typedef struct Watch Watch;
+typedef enum ManagerExitCode {
+ MANAGER_RUNNING,
+ MANAGER_EXIT,
+ MANAGER_RELOAD,
+ MANAGER_REEXECUTE,
+ _MANAGER_EXIT_CODE_MAX,
+ _MANAGER_EXIT_CODE_INVALID = -1
+} ManagerExitCode;
+
+typedef enum ManagerRunningAs {
+ MANAGER_INIT, /* root and pid=1 */
+ MANAGER_SYSTEM, /* root and pid!=1 */
+ MANAGER_SESSION, /* non-root, for a session */
+ _MANAGER_RUNNING_AS_MAX,
+ _MANAGER_RUNNING_AS_INVALID = -1
+} ManagerRunningAs;
+
enum WatchType {
WATCH_INVALID,
WATCH_SIGNAL,
WATCH_FD,
WATCH_TIMER,
- WATCH_MOUNT
+ WATCH_MOUNT,
+ WATCH_UDEV,
+ WATCH_DBUS_WATCH,
+ WATCH_DBUS_TIMEOUT
};
struct Watch {
int fd;
WatchType type;
- union Unit *unit;
+ union {
+ union Unit *unit;
+ DBusWatch *bus_watch;
+ DBusTimeout *bus_timeout;
+ } data;
+ bool fd_is_dupped:1;
+ bool socket_accept:1;
};
#include "unit.h"
@@ -30,14 +81,51 @@ struct Watch {
#include "hashmap.h"
#include "list.h"
#include "set.h"
+#include "dbus.h"
#define SPECIAL_DEFAULT_TARGET "default.target"
-#define SPECIAL_SYSLOG_SERVICE "syslog.service"
-#define SPECIAL_DBUS_SERVICE "messagebus.service"
+
+/* This is not really intended to be started by directly. This is
+ * mostly so that other targets (reboot/halt/poweroff) can depend on
+ * it to bring all services down that want to be brought down on
+ * system shutdown. */
+#define SPECIAL_SHUTDOWN_TARGET "shutdown.target"
+
#define SPECIAL_LOGGER_SOCKET "systemd-logger.socket"
+
#define SPECIAL_KBREQUEST_TARGET "kbrequest.target"
+#define SPECIAL_SIGPWR_TARGET "sigpwr.target"
#define SPECIAL_CTRL_ALT_DEL_TARGET "ctrl-alt-del.target"
+#define SPECIAL_LOCAL_FS_TARGET "local-fs.target"
+#define SPECIAL_REMOTE_FS_TARGET "remote-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_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_BASIC_TARGET "basic.target"
+#define SPECIAL_RESCUE_TARGET "rescue.target"
+
+#ifndef SPECIAL_DBUS_SERVICE
+#define SPECIAL_DBUS_SERVICE "dbus.service"
+#endif
+
+#ifndef SPECIAL_SYSLOG_SERVICE
+#define SPECIAL_SYSLOG_SERVICE "syslog.service"
+#endif
+
+/* 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 {
uint32_t current_job_id;
@@ -59,48 +147,132 @@ struct Manager {
/* 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);
+
+ /* Units to remove */
+ LIST_HEAD(Meta, cleanup_queue);
+
+ /* Units to check when doing GC */
+ LIST_HEAD(Meta, gc_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;
-
Hashmap *watch_pids; /* pid => Unit object n:1 */
+ Watch signal_watch;
+
int epoll_fd;
- Watch signal_watch;
+ unsigned n_snapshots;
+
+ char **unit_path;
+ char **sysvinit_path;
+ char **sysvrcnd_path;
+
+ usec_t boot_timestamp;
/* 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 *api_bus, *system_bus;
+ Set *subscribed;
+ DBusMessage *queued_message; /* This is used during reloading:
+ * before the reload we queue the
+ * reply message here, and
+ * afterwards we send it */
+
+ Hashmap *watch_bus; /* D-Bus names => Unit object n:1 */
+ int32_t name_data_slot;
+
+ /* Data specific to the Automount subsystem */
+ int dev_autofs_fd;
+
+ /* Data specific to the cgroup subsystem */
+ Hashmap *cgroup_bondings; /* path string => CGroupBonding object 1:n */
+ char *cgroup_controller;
+ char *cgroup_hierarchy;
+
+ usec_t gc_queue_timestamp;
+
+ int gc_marker;
+ unsigned n_in_gc_queue;
+
+ /* Flags */
+ ManagerRunningAs running_as;
+ ManagerExitCode exit_code:4;
+
+ bool dispatching_load_queue:1;
+ bool dispatching_run_queue:1;
+ bool dispatching_dbus_queue:1;
+
+ bool request_api_bus_dispatch:1;
+ bool request_system_bus_dispatch:1;
+
+ bool utmp_reboot_written:1;
+
+ bool confirm_spawn:1;
};
-Manager* manager_new(void);
+int manager_new(ManagerRunningAs running_as, bool confirm_spawn, Manager **m);
void manager_free(Manager *m);
+int manager_enumerate(Manager *m);
int manager_coldplug(Manager *m);
+int manager_startup(Manager *m, FILE *serialization, FDSet *fds);
Job *manager_get_job(Manager *m, uint32_t id);
Unit *manager_get_unit(Manager *m, const char *name);
-int manager_load_unit(Manager *m, const char *path_or_name, Unit **_ret);
+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_prepare(Manager *m, const char *name, const char *path, Unit **_ret);
+int manager_load_unit(Manager *m, const char *name, const char *path, Unit **_ret);
+
int manager_add_job(Manager *m, JobType type, Unit *unit, JobMode mode, bool force, Job **_ret);
+int manager_add_job_by_name(Manager *m, JobType type, const char *name, JobMode mode, bool force, Job **_ret);
void manager_dump_units(Manager *s, FILE *f, const char *prefix);
void manager_dump_jobs(Manager *s, FILE *f, const char *prefix);
-void manager_transaction_unlink_job(Manager *m, Job *j);
+void manager_transaction_unlink_job(Manager *m, Job *j, bool delete_dependencies);
void manager_clear_jobs(Manager *m);
-void manager_dispatch_load_queue(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);
+void manager_write_utmp_reboot(Manager *m);
+void manager_write_utmp_runlevel(Manager *m, Unit *t);
+
+void manager_dispatch_bus_name_owner_changed(Manager *m, const char *name, const char* old_owner, const char *new_owner);
+void manager_dispatch_bus_query_pid_done(Manager *m, const char *name, pid_t pid);
+
+int manager_open_serialization(FILE **_f);
+
+int manager_serialize(Manager *m, FILE *f, FDSet *fds);
+int manager_deserialize(Manager *m, FILE *f, FDSet *fds);
+
+int manager_reload(Manager *m);
+
+const char *manager_running_as_to_string(ManagerRunningAs i);
+ManagerRunningAs manager_running_as_from_string(const char *s);
+
#endif