X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Fcore%2Fmanager.h;h=38f1c89c930c6889701b20e3352acb20fcbd1949;hp=b04397034013beb51bedfcae4afbb8527b9921fe;hb=f755e3b74b94296a534033dd6ae04d9506434210;hpb=c2e0d600ed76f6767d59715d93cf862808552ea2 diff --git a/src/core/manager.h b/src/core/manager.h index b04397034..38f1c89c9 100644 --- a/src/core/manager.h +++ b/src/core/manager.h @@ -24,8 +24,9 @@ #include #include #include -#include +#include "sd-bus.h" +#include "sd-event.h" #include "fdset.h" #include "cgroup-util.h" @@ -33,11 +34,19 @@ #define MANAGER_MAX_NAMES 131072 /* 128K */ typedef struct Manager Manager; -typedef enum WatchType WatchType; -typedef struct Watch Watch; -typedef enum ManagerExitCode { +typedef enum ManagerState { + MANAGER_STARTING, MANAGER_RUNNING, + MANAGER_DEGRADED, + MANAGER_MAINTENANCE, + MANAGER_STOPPING, + _MANAGER_STATE_MAX, + _MANAGER_STATE_INVALID = -1 +} ManagerState; + +typedef enum ManagerExitCode { + MANAGER_OK, MANAGER_EXIT, MANAGER_RELOAD, MANAGER_REEXECUTE, @@ -50,45 +59,16 @@ typedef enum ManagerExitCode { _MANAGER_EXIT_CODE_INVALID = -1 } ManagerExitCode; -enum WatchType { - WATCH_INVALID, - WATCH_SIGNAL, - WATCH_NOTIFY, - WATCH_FD, - WATCH_UNIT_TIMER, - WATCH_JOB_TIMER, - WATCH_MOUNT, - WATCH_SWAP, - WATCH_UDEV, - WATCH_DBUS_WATCH, - WATCH_DBUS_TIMEOUT, - WATCH_TIME_CHANGE, - WATCH_JOBS_IN_PROGRESS, - WATCH_IDLE_PIPE, -}; - -struct Watch { - int fd; - WatchType type; - union { - struct Unit *unit; - struct Job *job; - DBusWatch *bus_watch; - DBusTimeout *bus_timeout; - } data; - bool fd_is_dupped:1; - bool socket_accept:1; -}; - #include "unit.h" #include "job.h" #include "hashmap.h" #include "list.h" #include "set.h" -#include "dbus.h" #include "path-lookup.h" #include "execute.h" #include "unit-name.h" +#include "exit-status.h" +#include "show-status.h" struct Manager { /* Note that the set of units we know of is allowed to be @@ -125,17 +105,33 @@ struct Manager { /* Units that should be realized */ LIST_HEAD(Unit, cgroup_queue); - Hashmap *watch_pids; /* pid => Unit object n:1 */ + sd_event *event; + + /* We use two hash tables here, since the same PID might be + * watched by two different units: once the unit that forked + * it off, and possibly a different unit to which it was + * joined as cgroup member. Since we know that it is either + * one or two units for each PID we just use to hashmaps + * here. */ + Hashmap *watch_pids1; /* pid => Unit object n:1 */ + Hashmap *watch_pids2; /* pid => Unit object n:1 */ + + /* A set which contains all currently failed units */ + Set *failed_units; + + sd_event_source *run_queue_event_source; char *notify_socket; + int notify_fd; + sd_event_source *notify_event_source; - Watch notify_watch; - Watch signal_watch; - Watch time_change_watch; - Watch jobs_in_progress_watch; - Watch idle_pipe_watch; + int signal_fd; + sd_event_source *signal_event_source; - int epoll_fd; + int time_change_fd; + sd_event_source *time_change_event_source; + + sd_event_source *jobs_in_progress_event_source; unsigned n_snapshots; @@ -157,44 +153,49 @@ struct Manager { dual_timestamp security_finish_timestamp; dual_timestamp generators_start_timestamp; dual_timestamp generators_finish_timestamp; - dual_timestamp unitsload_start_timestamp; - dual_timestamp unitsload_finish_timestamp; + dual_timestamp units_load_start_timestamp; + dual_timestamp units_load_finish_timestamp; char *generator_unit_path; char *generator_unit_path_early; char *generator_unit_path_late; - /* Data specific to the device subsystem */ struct udev* udev; + + /* Data specific to the device subsystem */ struct udev_monitor* udev_monitor; - Watch udev_watch; + sd_event_source *udev_event_source; Hashmap *devices_by_sysfs; /* Data specific to the mount subsystem */ FILE *proc_self_mountinfo; - Watch mount_watch; + sd_event_source *mount_event_source; /* Data specific to the swap filesystem */ FILE *proc_swaps; - Hashmap *swaps_by_proc_swaps; - bool request_reload; - Watch swap_watch; + sd_event_source *swap_event_source; + Hashmap *swaps_by_devnode; /* Data specific to the D-Bus subsystem */ - DBusConnection *api_bus, *system_bus; - DBusServer *private_bus; - Set *bus_connections, *bus_connections_for_dispatch; - - DBusMessage *queued_message; /* This is used during reloading: + sd_bus *api_bus, *system_bus; + Set *private_buses; + int private_listen_fd; + sd_event_source *private_listen_event_source; + + /* Contains all the clients that are subscribed to signals via + the API bus. Note that private bus connections are always + considered subscribes, since they last for very short only, + and it is much simpler that way. */ + sd_bus_track *subscribed; + char **deserialized_subscribed; + + sd_bus_message *queued_message; /* This is used during reloading: * before the reload we queue the * reply message here, and * afterwards we send it */ - DBusConnection *queued_message_connection; /* The connection to send the queued message on */ + sd_bus *queued_message_bus; /* The connection to send the queued message on */ Hashmap *watch_bus; /* D-Bus names => Unit object n:1 */ - int32_t name_data_slot; - int32_t conn_data_slot; - int32_t subscribed_data_slot; bool send_reloading_done; @@ -221,24 +222,26 @@ struct Manager { ManagerExitCode exit_code:5; bool dispatching_load_queue:1; - bool dispatching_run_queue:1; bool dispatching_dbus_queue:1; bool taint_usr:1; - bool show_status; + ShowStatus show_status; bool confirm_spawn; bool no_console_output; ExecOutput default_std_output, default_std_error; - usec_t default_restart_usec, default_timeout_start_usec, - default_timeout_stop_usec; + usec_t default_restart_usec, default_timeout_start_usec, default_timeout_stop_usec; usec_t default_start_limit_interval; unsigned default_start_limit_burst; - struct rlimit *rlimit[RLIMIT_NLIMITS]; + bool default_cpu_accounting; + bool default_memory_accounting; + bool default_blockio_accounting; + + struct rlimit *rlimit[_RLIMIT_MAX]; /* non-zero if we are reloading or reexecuting, */ int n_reloading; @@ -253,6 +256,7 @@ struct Manager { /* Type=idle pipes */ int idle_pipe[4]; + sd_event_source *idle_pipe_event_source; char *switch_root; char *switch_root_init; @@ -261,9 +265,12 @@ struct Manager { * them. It's a hashmap with a path string as key and a Set as * value where Unit objects are contained. */ Hashmap *units_requiring_mounts_for; + + /* Reference to the kdbus bus control fd */ + int kdbus_fd; }; -int manager_new(SystemdRunningAs running_as, bool reexecuting, Manager **m); +int manager_new(SystemdRunningAs running_as, Manager **m); void manager_free(Manager *m); int manager_enumerate(Manager *m); @@ -276,12 +283,12 @@ int manager_get_unit_by_path(Manager *m, const char *path, const char *suffix, 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, DBusError *e, Unit **_ret); -int manager_load_unit(Manager *m, const char *name, const char *path, DBusError *e, Unit **_ret); -int manager_load_unit_from_dbus_path(Manager *m, const char *s, DBusError *e, Unit **_u); +int manager_load_unit_prepare(Manager *m, const char *name, const char *path, sd_bus_error *e, Unit **_ret); +int manager_load_unit(Manager *m, const char *name, const char *path, sd_bus_error *e, Unit **_ret); +int manager_load_unit_from_dbus_path(Manager *m, const char *s, sd_bus_error *e, Unit **_u); -int manager_add_job(Manager *m, JobType type, Unit *unit, JobMode mode, bool force, DBusError *e, Job **_ret); -int manager_add_job_by_name(Manager *m, JobType type, const char *name, JobMode mode, bool force, DBusError *e, Job **_ret); +int manager_add_job(Manager *m, JobType type, Unit *unit, JobMode mode, bool force, sd_bus_error *e, Job **_ret); +int manager_add_job_by_name(Manager *m, JobType type, const char *name, JobMode mode, bool force, sd_bus_error *e, Job **_ret); void manager_dump_units(Manager *s, FILE *f, const char *prefix); void manager_dump_jobs(Manager *s, FILE *f, const char *prefix); @@ -290,13 +297,12 @@ void manager_clear_jobs(Manager *m); unsigned manager_dispatch_load_queue(Manager *m); -int manager_environment_add(Manager *m, char **environment); +int manager_environment_add(Manager *m, char **minus, char **plus); int manager_set_default_rlimits(Manager *m, struct rlimit **default_rlimit); int manager_loop(Manager *m); 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(Manager *m, FILE **_f); @@ -321,9 +327,15 @@ void manager_undo_generators(Manager *m); void manager_recheck_journal(Manager *m); -void manager_set_show_status(Manager *m, bool b); +void manager_set_show_status(Manager *m, ShowStatus mode); void manager_status_printf(Manager *m, bool ephemeral, const char *status, const char *format, ...) _printf_(4,5); +void manager_flip_auto_status(Manager *m, bool enable); Set *manager_get_units_requiring_mounts_for(Manager *m, const char *path); -void watch_init(Watch *w); +const char *manager_get_runtime_prefix(Manager *m); + +ManagerState manager_state(Manager *m); + +const char *manager_state_to_string(ManagerState m) _const_; +ManagerState manager_state_from_string(const char *s) _pure_;