X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Fcore%2Funit.h;h=ed4df182469e2782b59e918dc85c723efb4bb6c7;hp=81b8adbfdc7f43b6fb4b3e972a660affc2d70a44;hb=6c12b52e19640747e96f89d85422941a23dc6b29;hpb=a016b9228f338cb9b380ce7e00826ef462767d98 diff --git a/src/core/unit.h b/src/core/unit.h index 81b8adbfd..ed4df1824 100644 --- a/src/core/unit.h +++ b/src/core/unit.h @@ -37,10 +37,10 @@ typedef struct UnitStatusMessageFormats UnitStatusMessageFormats; #include "list.h" #include "socket-util.h" #include "execute.h" +#include "cgroup.h" #include "condition.h" #include "install.h" #include "unit-name.h" -#include "cgroup-semantics.h" enum UnitActiveState { UNIT_ACTIVE, @@ -115,8 +115,6 @@ enum UnitDependency { #include "manager.h" #include "job.h" -#include "cgroup.h" -#include "cgroup-attr.h" struct UnitRef { /* Keeps tracks of references to a unit. This is useful so @@ -174,8 +172,9 @@ struct Unit { dual_timestamp inactive_enter_timestamp; /* Counterparts in the cgroup filesystem */ - CGroupBonding *cgroup_bondings; - CGroupAttribute *cgroup_attributes; + char *cgroup_path; + bool cgroup_realized; + CGroupControllerMask cgroup_mask; UnitRef slice; @@ -197,6 +196,9 @@ struct Unit { /* GC queue */ LIST_FIELDS(Unit, gc_queue); + /* CGroup realize members queue */ + LIST_FIELDS(Unit, cgroup_queue); + /* Used during GC sweeps */ unsigned gc_marker; @@ -239,10 +241,14 @@ struct Unit { /* Did the last condition check succeed? */ bool condition_result; + /* Is this a transient unit? */ + bool transient; + bool in_load_queue:1; bool in_dbus_queue:1; bool in_cleanup_queue:1; bool in_gc_queue:1; + bool in_cgroup_queue:1; bool sent_dbus_new_signal:1; @@ -257,6 +263,12 @@ struct UnitStatusMessageFormats { const char *finished_stop_job[_JOB_RESULT_MAX]; }; +typedef enum UnitSetPropertiesMode { + UNIT_CHECK = 0, + UNIT_RUNTIME = 1, + UNIT_PERSISTENT = 2, +} UnitSetPropertiesMode; + #include "service.h" #include "timer.h" #include "socket.h" @@ -268,6 +280,7 @@ struct UnitStatusMessageFormats { #include "swap.h" #include "path.h" #include "slice.h" +#include "scope.h" struct UnitVTable { /* How much memory does an object of this unit type need */ @@ -277,8 +290,12 @@ struct UnitVTable { * ExecContext is found, if the unit type has that */ size_t exec_context_offset; - /* The name of the section with the exec settings of ExecContext */ - const char *exec_section; + /* If greater than 0, the offset into the object where + * CGroupContext is found, if the unit type has that */ + size_t cgroup_context_offset; + + /* The name of the configuration file section with the private settings of this unit*/ + const char *private_section; /* Config file sections this unit type understands, separated * by NUL chars */ @@ -350,7 +367,7 @@ struct UnitVTable { /* Called whenever any of the cgroups this unit watches for * ran empty */ - void (*cgroup_notify_empty)(Unit *u); + void (*notify_cgroup_empty)(Unit *u); /* Called whenever a process of this unit sends us a message */ void (*notify_message)(Unit *u, pid_t pid, char **tags); @@ -365,6 +382,12 @@ struct UnitVTable { /* Called for each message received on the bus */ DBusHandlerResult (*bus_message_handler)(Unit *u, DBusConnection *c, DBusMessage *message); + /* Called for each property that is being set */ + int (*bus_set_property)(Unit *u, const char *name, DBusMessageIter *i, UnitSetPropertiesMode mode, DBusError *error); + + /* Called after at least one property got changed to apply the necessary change */ + int (*bus_commit_properties)(Unit *u); + /* Return the unit this unit is following */ Unit *(*following)(Unit *u); @@ -406,6 +429,9 @@ struct UnitVTable { /* Exclude from automatic gc */ bool no_gc:1; + + /* True if transient units of this type are OK */ + bool can_transient:1; }; extern const UnitVTable * const unit_vtable[_UNIT_TYPE_MAX]; @@ -437,6 +463,7 @@ DEFINE_CAST(SNAPSHOT, Snapshot); DEFINE_CAST(SWAP, Swap); DEFINE_CAST(PATH, Path); DEFINE_CAST(SLICE, Slice); +DEFINE_CAST(SCOPE, Scope); Unit *unit_new(Manager *m, size_t size); void unit_free(Unit *u); @@ -454,11 +481,6 @@ int unit_add_two_dependencies_by_name_inverse(Unit *u, UnitDependency d, UnitDep int unit_add_exec_dependencies(Unit *u, ExecContext *c); -int unit_add_cgroup_from_text(Unit *u, const char *name, bool overwrite, CGroupBonding **ret); -int unit_add_default_cgroups(Unit *u); -CGroupBonding* unit_get_default_cgroup(Unit *u); -int unit_add_cgroup_attribute(Unit *u, const CGroupSemantics *semantics, const char *controller, const char *name, const char *value, CGroupAttribute **ret); - int unit_choose_id(Unit *u, const char *name); int unit_set_description(Unit *u, const char *description); @@ -542,6 +564,8 @@ void unit_reset_failed(Unit *u); Unit *unit_following(Unit *u); +const char *unit_slice_name(Unit *u); + bool unit_stop_pending(Unit *u) _pure_; bool unit_inactive_or_pending(Unit *u) _pure_; bool unit_active_or_pending(Unit *u); @@ -563,6 +587,7 @@ Unit* unit_ref_set(UnitRef *ref, Unit *u); void unit_ref_unset(UnitRef *ref); #define UNIT_DEREF(ref) ((ref).unit) +#define UNIT_ISSET(ref) (!!(ref).unit) int unit_add_one_mount_link(Unit *u, Mount *m); int unit_add_mount_links(Unit *u); @@ -570,12 +595,16 @@ int unit_add_mount_links(Unit *u); int unit_exec_context_defaults(Unit *u, ExecContext *c); ExecContext *unit_get_exec_context(Unit *u) _pure_; +CGroupContext *unit_get_cgroup_context(Unit *u) _pure_; -int unit_write_drop_in(Unit *u, bool runtime, const char *name, const char *data); -int unit_remove_drop_in(Unit *u, bool runtime, const char *name); +int unit_write_drop_in(Unit *u, UnitSetPropertiesMode mode, const char *name, const char *data); +int unit_write_drop_in_private_section(Unit *u, UnitSetPropertiesMode mode, const char *name, const char *data); +int unit_remove_drop_in(Unit *u, UnitSetPropertiesMode mode, const char *name); int unit_kill_context(Unit *u, KillContext *c, bool sigkill, pid_t main_pid, pid_t control_pid, bool main_pid_alien); +int unit_make_transient(Unit *u); + const char *unit_active_state_to_string(UnitActiveState i) _const_; UnitActiveState unit_active_state_from_string(const char *s) _pure_;