X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=manager.h;h=356e168bf65c541a36dd16acbd0231ca01b6aa8d;hp=b92680d96c619e5ccd1ad1fb6cbad6293c30442e;hb=9d58f1dbdb77be332731fb490d0d7f91a5718da8;hpb=c1e1601e8c6cace85b19a0eebe50076e5d119688 diff --git a/manager.h b/manager.h index b92680d96..356e168bf 100644 --- a/manager.h +++ b/manager.h @@ -25,13 +25,31 @@ #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; + enum WatchType { WATCH_INVALID, WATCH_SIGNAL, @@ -46,12 +64,13 @@ enum WatchType { struct Watch { int fd; WatchType type; - bool fd_is_dupped; union { union Unit *unit; DBusWatch *bus_watch; DBusTimeout *bus_timeout; + bool socket_accept; } data; + bool fd_is_dupped; }; #include "unit.h" @@ -62,12 +81,42 @@ struct Watch { #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_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; @@ -96,23 +145,25 @@ struct Manager { 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; - bool dispatching_load_queue:1; - bool dispatching_run_queue:1; - bool dispatching_dbus_queue:1; + Hashmap *watch_pids; /* pid => Unit object n:1 */ - bool is_init:1; + Watch signal_watch; - bool request_bus_dispatch:1; + int epoll_fd; - Hashmap *watch_pids; /* pid => Unit object n:1 */ + unsigned n_snapshots; - int epoll_fd; + char **unit_path; + char **sysvinit_path; + char **sysvrcnd_path; - Watch signal_watch; + usec_t boot_timestamp; /* Data specific to the device subsystem */ struct udev* udev; @@ -124,14 +175,46 @@ struct Manager { Watch mount_watch; /* Data specific to the D-Bus subsystem */ - DBusConnection *bus; + 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); Unit *manager_get_unit(Manager *m, const char *name); @@ -139,13 +222,15 @@ 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_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); @@ -155,4 +240,20 @@ 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