X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Fcore%2Funit.h;h=a773762f36950a6a81543173c07919cfa1824e2d;hp=c686aeccefda52913f5dde6d3d09ec9fd406ea0c;hb=cb87a73b45503eaa6bead291423a529b00d27156;hpb=68db7a3bd9b2f8640c7297382b6d20eb995f7e1e

diff --git a/src/core/unit.h b/src/core/unit.h
index c686aecce..a773762f3 100644
--- a/src/core/unit.h
+++ b/src/core/unit.h
@@ -28,7 +28,6 @@
 typedef struct Unit Unit;
 typedef struct UnitVTable UnitVTable;
 typedef enum UnitActiveState UnitActiveState;
-typedef enum UnitDependency UnitDependency;
 typedef struct UnitRef UnitRef;
 typedef struct UnitStatusMessageFormats UnitStatusMessageFormats;
 
@@ -70,53 +69,6 @@ static inline bool UNIT_IS_INACTIVE_OR_FAILED(UnitActiveState t) {
         return t == UNIT_INACTIVE || t == UNIT_FAILED;
 }
 
-enum UnitDependency {
-        /* Positive dependencies */
-        UNIT_REQUIRES,
-        UNIT_REQUIRES_OVERRIDABLE,
-        UNIT_REQUISITE,
-        UNIT_REQUISITE_OVERRIDABLE,
-        UNIT_WANTS,
-        UNIT_BINDS_TO,
-        UNIT_PART_OF,
-
-        /* Inverse of the above */
-        UNIT_REQUIRED_BY,             /* inverse of 'requires' and 'requisite' is '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 'binds_to' */
-        UNIT_CONSISTS_OF,             /* inverse of 'part_of' */
-
-        /* Negative dependencies */
-        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,
-
-        /* Triggers (i.e. a socket triggers a service) */
-        UNIT_TRIGGERS,
-        UNIT_TRIGGERED_BY,
-
-        /* Propagate reloads */
-        UNIT_PROPAGATES_RELOAD_TO,
-        UNIT_RELOAD_PROPAGATED_FROM,
-
-        /* Joins namespace of */
-        UNIT_JOINS_NAMESPACE_OF,
-
-        /* Reference information for GC logic */
-        UNIT_REFERENCES,              /* Inverse of 'references' is 'referenced_by' */
-        UNIT_REFERENCED_BY,
-
-        _UNIT_DEPENDENCY_MAX,
-        _UNIT_DEPENDENCY_INVALID = -1
-};
-
 #include "manager.h"
 #include "job.h"
 
@@ -177,7 +129,8 @@ struct Unit {
 
         /* Counterparts in the cgroup filesystem */
         char *cgroup_path;
-        CGroupControllerMask cgroup_mask;
+        CGroupControllerMask cgroup_realized_mask;
+        CGroupControllerMask cgroup_subtree_mask;
         CGroupControllerMask cgroup_members_mask;
 
         UnitRef slice;
@@ -203,6 +156,11 @@ struct Unit {
         /* CGroup realize members queue */
         LIST_FIELDS(Unit, cgroup_queue);
 
+        /* PIDs we keep an eye on. Note that a unit might have many
+         * more, but these are the ones we care enough about to
+         * process SIGCHLD for */
+        Set *pids;
+
         /* Used during GC sweeps */
         unsigned gc_marker;
 
@@ -261,6 +219,8 @@ struct Unit {
         bool in_audit:1;
 
         bool cgroup_realized:1;
+        bool cgroup_members_mask_valid:1;
+        bool cgroup_subtree_mask_valid:1;
 };
 
 struct UnitStatusMessageFormats {
@@ -511,7 +471,7 @@ int unit_load_fragment_and_dropin(Unit *u);
 int unit_load_fragment_and_dropin_optional(Unit *u);
 int unit_load(Unit *unit);
 
-int unit_add_default_slice(Unit *u);
+int unit_add_default_slice(Unit *u, CGroupContext *c);
 
 const char *unit_description(Unit *u) _pure_;
 
@@ -538,6 +498,10 @@ void unit_notify(Unit *u, UnitActiveState os, UnitActiveState ns, bool reload_su
 
 int unit_watch_pid(Unit *u, pid_t pid);
 void unit_unwatch_pid(Unit *u, pid_t pid);
+int unit_watch_all_pids(Unit *u);
+void unit_unwatch_all_pids(Unit *u);
+
+void unit_tidy_watch_pids(Unit *u, pid_t except1, pid_t except2);
 
 int unit_watch_bus_name(Unit *u, const char *name);
 void unit_unwatch_bus_name(Unit *u, const char *name);
@@ -590,11 +554,12 @@ void unit_ref_unset(UnitRef *ref);
 #define UNIT_DEREF(ref) ((ref).unit)
 #define UNIT_ISSET(ref) (!!(ref).unit)
 
-int unit_exec_context_defaults(Unit *u, ExecContext *c);
+int unit_patch_contexts(Unit *u);
 
 ExecContext *unit_get_exec_context(Unit *u) _pure_;
 KillContext *unit_get_kill_context(Unit *u) _pure_;
 CGroupContext *unit_get_cgroup_context(Unit *u) _pure_;
+
 ExecRuntime *unit_get_exec_runtime(Unit *u) _pure_;
 
 int unit_setup_exec_runtime(Unit *u);
@@ -616,9 +581,6 @@ int unit_require_mounts_for(Unit *u, const char *path);
 const char *unit_active_state_to_string(UnitActiveState i) _const_;
 UnitActiveState unit_active_state_from_string(const char *s) _pure_;
 
-const char *unit_dependency_to_string(UnitDependency i) _const_;
-UnitDependency unit_dependency_from_string(const char *s) _pure_;
-
 /* Macros which append UNIT= or USER_UNIT= to the message */
 
 #define log_full_unit(level, unit, ...) log_meta_object(level, __FILE__, __LINE__, __func__, getpid() == 1 ? "UNIT=" : "USER_UNIT=", unit, __VA_ARGS__)