X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Funit.h;h=7da572350ef5dbaa5c11265acee138f9a533221e;hp=20bb6a2a185739666e5c699da18bc23ec9befc7c;hb=7c2ec00930ce1f4aabfbb405d84b67eb9d065ef0;hpb=bba34eedc7fb8f5023fa0d55c23d00d5854546c5 diff --git a/src/unit.h b/src/unit.h index 20bb6a2a1..7da572350 100644 --- a/src/unit.h +++ b/src/unit.h @@ -38,10 +38,8 @@ typedef enum UnitDependency UnitDependency; #include "list.h" #include "socket-util.h" #include "execute.h" - -#define UNIT_NAME_MAX 256 -#define DEFAULT_TIMEOUT_USEC (60*USEC_PER_SEC) -#define DEFAULT_RESTART_USEC (100*USEC_PER_MSEC) +#include "condition.h" +#include "install.h" enum UnitType { UNIT_SERVICE = 0, @@ -63,6 +61,7 @@ enum UnitLoadState { UNIT_LOADED, UNIT_ERROR, UNIT_MERGED, + UNIT_MASKED, _UNIT_LOAD_STATE_MAX, _UNIT_LOAD_STATE_INVALID = -1 }; @@ -101,11 +100,13 @@ enum UnitDependency { UNIT_REQUISITE, UNIT_REQUISITE_OVERRIDABLE, UNIT_WANTS, + UNIT_BIND_TO, /* Inverse of the above */ UNIT_REQUIRED_BY, /* inverse of 'requires' and 'requisite' is 'required_by' */ - UNIT_REQUIRED_BY_OVERRIDABLE, /* inverse of 'soft_requires' and 'soft_requisite' is 'soft_required_by' */ + UNIT_REQUIRED_BY_OVERRIDABLE, /* inverse of 'requires_overridable' and 'requisite_overridable' is 'soft_required_by' */ UNIT_WANTED_BY, /* inverse of 'wants' */ + UNIT_BOUND_BY, /* inverse of 'bind_to' */ /* Negative dependencies */ UNIT_CONFLICTS, /* inverse of 'conflicts' is 'conflicted_by' */ @@ -129,6 +130,7 @@ enum UnitDependency { #include "manager.h" #include "job.h" #include "cgroup.h" +#include "cgroup-attr.h" struct Meta { Manager *manager; @@ -154,6 +156,11 @@ struct Meta { usec_t job_timeout; + /* Conditions to check */ + LIST_HEAD(Condition, conditions); + + dual_timestamp condition_timestamp; + dual_timestamp inactive_exit_timestamp; dual_timestamp active_enter_timestamp; dual_timestamp active_exit_timestamp; @@ -161,9 +168,10 @@ struct Meta { /* Counterparts in the cgroup filesystem */ CGroupBonding *cgroup_bondings; + CGroupAttribute *cgroup_attributes; /* Per type list */ - LIST_FIELDS(Meta, units_per_type); + LIST_FIELDS(Meta, units_by_type); /* Load queue */ LIST_FIELDS(Meta, load_queue); @@ -187,18 +195,15 @@ struct Meta { /* Error code when we didn't manage to load the unit (negative) */ int load_error; - /* If we go down, pull down everything that depends on us, too */ - bool recursive_stop; + /* Cached unit file state */ + UnitFileState unit_file_state; /* Garbage collect us we nobody wants or requires us anymore */ bool stop_when_unneeded; - /* Create default depedencies */ + /* Create default dependencies */ 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; @@ -208,6 +213,18 @@ struct Meta { /* Allow isolation requests */ bool allow_isolate; + /* Isolate OnFailure unit */ + bool on_failure_isolate; + + /* Ignore this unit when isolating */ + bool ignore_on_isolate; + + /* Ignore this unit when snapshotting */ + bool ignore_on_snapshot; + + /* Did the last condition check suceed? */ + bool condition_result; + bool in_load_queue:1; bool in_dbus_queue:1; bool in_cleanup_queue:1; @@ -248,6 +265,10 @@ union Unit { struct UnitVTable { const char *suffix; + /* Config file sections this unit type understands, separated + * by NUL chars */ + const char *sections; + /* This should reset all type-specific variables. This should * not allocate memory, and is called with zero-initialized * data. It should hence only initialize variables that need @@ -273,6 +294,8 @@ struct UnitVTable { int (*stop)(Unit *u); int (*reload)(Unit *u); + int (*kill)(Unit *u, KillWho w, KillMode m, int signo, DBusError *error); + bool (*can_reload)(Unit *u); /* Write all data that cannot be restored from other sources @@ -288,7 +311,7 @@ struct UnitVTable { /* Returns the substate specific to this unit type as * string. This is purely information so that we can give the - * user a more finegrained explanation in which actual state a + * user a more fine grained explanation in which actual state a * unit is in. */ const char* (*sub_state_to_string)(Unit *u); @@ -304,6 +327,9 @@ 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); + /* Check whether unit needs a daemon reload */ + bool (*need_daemon_reload)(Unit *u); + /* Reset failed state if we are in failed state */ void (*reset_failed)(Unit *u); @@ -327,6 +353,9 @@ struct UnitVTable { /* Return the unit this unit is following */ Unit *(*following)(Unit *u); + /* Return the set of units that are following each other */ + int (*following_set)(Unit *u, Set **s); + /* This is called for each unit type and should be used to * enumerate existing devices and load them. However, * everything that is loaded here should still stay in @@ -348,23 +377,12 @@ struct UnitVTable { /* Can units of this type have multiple names? */ bool no_alias:1; - /* If true units of this types can never have "Requires" - * dependencies, because state changes can only be observed, - * not triggered */ - bool no_requires:1; - /* Instances make no sense for this type */ bool no_instances:1; - /* Exclude this type from snapshots */ - bool no_snapshots:1; - /* Exclude from automatic gc */ bool no_gc:1; - /* Exclude from stopping on isolation requests */ - bool no_isolate:1; - /* Show status updates on the console */ bool show_status:1; }; @@ -414,8 +432,9 @@ int unit_add_exec_dependencies(Unit *u, ExecContext *c); int unit_add_cgroup(Unit *u, CGroupBonding *b); int unit_add_cgroup_from_text(Unit *u, const char *name); -int unit_add_default_cgroup(Unit *u); +int unit_add_default_cgroups(Unit *u); CGroupBonding* unit_get_default_cgroup(Unit *u); +int unit_add_cgroup_attribute(Unit *u, const char *controller, const char *name, const char *value, CGroupAttributeMapCallback map_callback); int unit_choose_id(Unit *u, const char *name); int unit_set_description(Unit *u, const char *description); @@ -454,7 +473,9 @@ int unit_start(Unit *u); int unit_stop(Unit *u); int unit_reload(Unit *u); -void unit_notify(Unit *u, UnitActiveState os, UnitActiveState ns); +int unit_kill(Unit *u, KillWho w, KillMode m, int signo, DBusError *error); + +void unit_notify(Unit *u, UnitActiveState os, UnitActiveState ns, bool reload_success); int unit_watch_fd(Unit *u, int fd, uint32_t events, Watch *w); void unit_unwatch_fd(Unit *u, Watch *w); @@ -500,9 +521,21 @@ void unit_reset_failed(Unit *u); Unit *unit_following(Unit *u); bool unit_pending_inactive(Unit *u); +bool unit_pending_active(Unit *u); int unit_add_default_target_dependency(Unit *u, Unit *target); +int unit_following_set(Unit *u, Set **s); + +UnitType unit_name_to_type(const char *n); +bool unit_name_is_valid(const char *n, bool template_ok); + +void unit_trigger_on_failure(Unit *u); + +bool unit_condition_test(Unit *u); + +UnitFileState unit_get_unit_file_state(Unit *u); + const char *unit_load_state_to_string(UnitLoadState i); UnitLoadState unit_load_state_from_string(const char *s); @@ -512,7 +545,4 @@ UnitActiveState unit_active_state_from_string(const char *s); const char *unit_dependency_to_string(UnitDependency i); UnitDependency unit_dependency_from_string(const char *s); -const char *kill_mode_to_string(KillMode k); -KillMode kill_mode_from_string(const char *s); - #endif