X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=manager.h;h=356e168bf65c541a36dd16acbd0231ca01b6aa8d;hp=9cd131d5adb5eb87bda2837878d03e3e31923d2b;hb=9d58f1dbdb77be332731fb490d0d7f91a5718da8;hpb=223dabab498a89e008a2a5cebb24bd168c80bae5
diff --git a/manager.h b/manager.h
index 9cd131d5a..356e168bf 100644
--- a/manager.h
+++ b/manager.h
@@ -3,41 +3,257 @@
#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"
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;
-#include "name.h"
+enum WatchType {
+ WATCH_INVALID,
+ WATCH_SIGNAL,
+ WATCH_FD,
+ WATCH_TIMER,
+ WATCH_MOUNT,
+ WATCH_UDEV,
+ WATCH_DBUS_WATCH,
+ WATCH_DBUS_TIMEOUT
+};
+
+struct Watch {
+ int fd;
+ WatchType type;
+ union {
+ union Unit *unit;
+ DBusWatch *bus_watch;
+ DBusTimeout *bus_timeout;
+ bool socket_accept;
+ } data;
+ bool fd_is_dupped;
+};
+
+#include "unit.h"
#include "job.h"
#include "hashmap.h"
#include "list.h"
#include "set.h"
+#include "dbus.h"
+
+#define SPECIAL_DEFAULT_TARGET "default.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;
- /* Active jobs and names */
- Hashmap *names; /* name string => Name object n:1 */
+ /* Note that the set of units we know of is allowed to be
+ * incosistent. However the subset of it that is loaded may
+ * not, and the list of jobs may neither. */
+
+ /* Active jobs and units */
+ Hashmap *units; /* name string => Unit object n:1 */
Hashmap *jobs; /* job id => Job object 1:1 */
- /* Names that need to be loaded */
+ /* 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 to be added resp. removed. */
- Hashmap *jobs_to_add; /* Name object => Job object 1:1 */
- Set *jobs_to_remove;
+ /* 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);
+
+ LIST_HEAD(Meta, cleanup_queue);
+
+ /* Jobs to be added */
+ Hashmap *transaction_jobs; /* Unit object => Job object list 1:1 */
+ JobDependency *transaction_anchor;
+
+ Hashmap *watch_pids; /* pid => Unit object n:1 */
+
+ Watch signal_watch;
+
+ int epoll_fd;
+
+ 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;
+
+ /* 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);
-Name *manager_get_name(Manager *m, const char *name);
+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 *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, bool delete_dependencies);
+
+void manager_clear_jobs(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);
-int manager_load_name(Manager *m, const char *name, Name **_ret);
-int manager_add_job(Manager *m, JobType job, Name *name, JobMode mode, Job **_ret);
+const char *manager_running_as_to_string(ManagerRunningAs i);
+ManagerRunningAs manager_running_as_from_string(const char *s);
#endif