X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Funit.h;h=a99d33ef07f4e5bea60eb532b47e9b56d33458f5;hp=d3e6e8902dffff15be0fec254735576e592a8218;hb=1e59887dc92e163163051e627817e1675374cd22;hpb=93a46b0bc51cf2beb8523830ef7fd74aa0869673 diff --git a/src/unit.h b/src/unit.h index d3e6e8902..a99d33ef0 100644 --- a/src/unit.h +++ b/src/unit.h @@ -39,19 +39,10 @@ typedef enum UnitDependency UnitDependency; #include "socket-util.h" #include "execute.h" -#define UNIT_NAME_MAX 128 -#define DEFAULT_TIMEOUT_USEC (20*USEC_PER_SEC) +#define UNIT_NAME_MAX 256 +#define DEFAULT_TIMEOUT_USEC (60*USEC_PER_SEC) #define DEFAULT_RESTART_USEC (100*USEC_PER_MSEC) -typedef enum KillMode { - KILL_CONTROL_GROUP = 0, - KILL_PROCESS_GROUP, - KILL_PROCESS, - KILL_NONE, - _KILL_MODE_MAX, - _KILL_MODE_INVALID = -1 -} KillMode; - enum UnitType { UNIT_SERVICE = 0, UNIT_SOCKET, @@ -78,8 +69,9 @@ enum UnitLoadState { enum UnitActiveState { UNIT_ACTIVE, - UNIT_ACTIVE_RELOADING, + UNIT_RELOADING, UNIT_INACTIVE, + UNIT_MAINTENANCE, UNIT_ACTIVATING, UNIT_DEACTIVATING, _UNIT_ACTIVE_STATE_MAX, @@ -87,15 +79,19 @@ enum UnitActiveState { }; static inline bool UNIT_IS_ACTIVE_OR_RELOADING(UnitActiveState t) { - return t == UNIT_ACTIVE || t == UNIT_ACTIVE_RELOADING; + return t == UNIT_ACTIVE || t == UNIT_RELOADING; } static inline bool UNIT_IS_ACTIVE_OR_ACTIVATING(UnitActiveState t) { - return t == UNIT_ACTIVE || t == UNIT_ACTIVATING || t == UNIT_ACTIVE_RELOADING; + return t == UNIT_ACTIVE || t == UNIT_ACTIVATING || t == UNIT_RELOADING; } static inline bool UNIT_IS_INACTIVE_OR_DEACTIVATING(UnitActiveState t) { - return t == UNIT_INACTIVE || t == UNIT_DEACTIVATING; + return t == UNIT_INACTIVE || t == UNIT_MAINTENANCE || t == UNIT_DEACTIVATING; +} + +static inline bool UNIT_IS_INACTIVE_OR_MAINTENANCE(UnitActiveState t) { + return t == UNIT_INACTIVE || t == UNIT_MAINTENANCE; } enum UnitDependency { @@ -112,12 +108,16 @@ enum UnitDependency { UNIT_WANTED_BY, /* inverse of 'wants' */ /* Negative dependencies */ - UNIT_CONFLICTS, /* inverse of 'conflicts' is 'conflicts' */ + UNIT_CONFLICTS, /* inverse of 'conflicts' is 'conflicted_by' */ + UNIT_CONFLICTED_BY, /* Order */ UNIT_BEFORE, /* inverse of 'before' is 'after' and vice versa */ UNIT_AFTER, + /* On Failure */ + UNIT_ON_FAILURE, + /* Reference information for GC logic */ UNIT_REFERENCES, /* Inverse of 'references' is 'referenced_by' */ UNIT_REFERENCED_BY, @@ -137,9 +137,6 @@ struct Meta { UnitLoadState load_state; Unit *merged_into; - /* Refuse manual starting, allow starting only indirectly via dependency. */ - bool only_by_dependency; - char *id; /* One name is special because we use it for identification. Points to an entry in the names set */ char *instance; @@ -147,16 +144,20 @@ struct Meta { Set *dependencies[_UNIT_DEPENDENCY_MAX]; char *description; + char *fragment_path; /* if loaded from a config file this is the primary path to it */ + usec_t fragment_mtime; /* If there is something to do with this unit, then this is * the job for it */ Job *job; - timestamp inactive_exit_timestamp; - timestamp active_enter_timestamp; - timestamp active_exit_timestamp; - timestamp inactive_enter_timestamp; + usec_t job_timeout; + + dual_timestamp inactive_exit_timestamp; + dual_timestamp active_enter_timestamp; + dual_timestamp active_exit_timestamp; + dual_timestamp inactive_enter_timestamp; /* Counterparts in the cgroup filesystem */ CGroupBonding *cgroup_bondings; @@ -179,18 +180,38 @@ struct Meta { /* Used during GC sweeps */ unsigned gc_marker; + /* When deserializing, temporarily store the job type for this + * unit here, if there was a job scheduled */ + int deserialized_job; /* This is actually of type JobType */ + /* If we go down, pull down everything that depends on us, too */ bool recursive_stop; /* Garbage collect us we nobody wants or requires us anymore */ bool stop_when_unneeded; + /* Create default depedencies */ + bool default_dependencies; + + /* Bring up this unit even if a dependency fails to start */ + bool ignore_dependency_failure; + + /* Refuse manual starting, allow starting only indirectly via dependency. */ + bool refuse_manual_start; + + /* Don't allow the user to stop this unit manually, allow stopping only indirectly via dependency. */ + bool refuse_manual_stop; + bool in_load_queue:1; bool in_dbus_queue:1; bool in_cleanup_queue:1; bool in_gc_queue:1; bool sent_dbus_new_signal:1; + + bool no_gc:1; + + bool in_audit:1; }; #include "service.h" @@ -277,10 +298,16 @@ struct UnitVTable { void (*sigchld_event)(Unit *u, pid_t pid, int code, int status); void (*timer_event)(Unit *u, uint64_t n_elapsed, Watch *w); + /* Reset maintenance state if we are in maintainance state */ + void (*reset_maintenance)(Unit *u); + /* Called whenever any of the cgroups this unit watches for * ran empty */ void (*cgroup_notify_empty)(Unit *u); + /* Called whenever a process of this unit sends us a message */ + void (*notify_message)(Unit *u, pid_t pid, char **tags); + /* Called whenever a name thus Unit registered for comes or * goes away. */ void (*bus_name_owner_change)(Unit *u, const char *name, const char *old_owner, const char *new_owner); @@ -289,7 +316,10 @@ struct UnitVTable { void (*bus_query_pid_done)(Unit *u, const char *name, pid_t pid); /* Called for each message received on the bus */ - DBusHandlerResult (*bus_message_handler)(Unit *u, DBusMessage *message); + DBusHandlerResult (*bus_message_handler)(Unit *u, DBusConnection *c, DBusMessage *message); + + /* Return the unit this unit is following */ + Unit *(*following)(Unit *u); /* This is called for each unit type and should be used to * enumerate existing devices and load them. However, @@ -320,6 +350,9 @@ struct UnitVTable { /* Exclude from isolation requests */ bool no_isolate:1; + + /* Show status updates on the console */ + bool show_status:1; }; extern const UnitVTable * const unit_vtable[_UNIT_TYPE_MAX]; @@ -329,14 +362,14 @@ extern const UnitVTable * const unit_vtable[_UNIT_TYPE_MAX]; /* For casting a unit into the various unit types */ #define DEFINE_CAST(UPPERCASE, MixedCase) \ static inline MixedCase* UPPERCASE(Unit *u) { \ - if (!u || u->meta.type != UNIT_##UPPERCASE) \ + if (_unlikely_(!u || u->meta.type != UNIT_##UPPERCASE)) \ return NULL; \ \ return (MixedCase*) u; \ } /* For casting the various unit types into a unit */ -#define UNIT(u) ((Unit*) (u)) +#define UNIT(u) ((Unit*) (&(u)->meta)) DEFINE_CAST(SOCKET, Socket); DEFINE_CAST(TIMER, Timer); @@ -355,8 +388,13 @@ void unit_free(Unit *u); int unit_add_name(Unit *u, const char *name); int unit_add_dependency(Unit *u, UnitDependency d, Unit *other, bool add_reference); +int unit_add_two_dependencies(Unit *u, UnitDependency d, UnitDependency e, Unit *other, bool add_reference); + int unit_add_dependency_by_name(Unit *u, UnitDependency d, const char *name, const char *filename, bool add_reference); +int unit_add_two_dependencies_by_name(Unit *u, UnitDependency d, UnitDependency e, const char *name, const char *path, bool add_reference); + int unit_add_dependency_by_name_inverse(Unit *u, UnitDependency d, const char *name, const char *filename, bool add_reference); +int unit_add_two_dependencies_by_name_inverse(Unit *u, UnitDependency d, UnitDependency e, const char *name, const char *path, bool add_reference); int unit_add_exec_dependencies(Unit *u, ExecContext *c); @@ -382,7 +420,6 @@ Unit *unit_follow_merge(Unit *u); int unit_load_fragment_and_dropin(Unit *u); int unit_load_fragment_and_dropin_optional(Unit *u); -int unit_load_nop(Unit *u); int unit_load(Unit *unit); const char *unit_description(Unit *u); @@ -437,8 +474,15 @@ int unit_deserialize(Unit *u, FILE *f, FDSet *fds); int unit_add_node_link(Unit *u, const char *what, bool wants); -const char *unit_type_to_string(UnitType i); -UnitType unit_type_from_string(const char *s); +int unit_coldplug(Unit *u); + +void unit_status_printf(Unit *u, const char *format, ...); + +bool unit_need_daemon_reload(Unit *u); + +void unit_reset_maintenance(Unit *u); + +Unit *unit_following(Unit *u); const char *unit_load_state_to_string(UnitLoadState i); UnitLoadState unit_load_state_from_string(const char *s);