core: add support to run transient units in arbitrary slices

[elogind.git] / src / core / dbus-unit.c

diff --git a/src/core/dbus-unit.c b/src/core/dbus-unit.c
index 36c3abdb97d0bc30042cf90adfba8147821f4cba..ad6d5a603885694ab13c0f9829438c60167e0fd0 100644 (file)
--- a/src/core/dbus-unit.c
+++ b/src/core/dbus-unit.c
@@ -790,6 +790,25 @@ static int bus_unit_set_transient_property(
                         return r;
 
                 return 1;
+
+        } else if (streq(name, "Slice") && unit_get_cgroup_context(u)) {
+                const char *s;
+                Unit *slice;
+
+                if (dbus_message_iter_get_arg_type(i) != DBUS_TYPE_STRING)
+                        return -EINVAL;
+
+                dbus_message_iter_get_basic(i, &s);
+
+                r = manager_load_unit(u->manager, s, NULL, error, &slice);
+                if (r < 0)
+                        return r;
+
+                if (slice->type != UNIT_SLICE)
+                        return -EINVAL;
+
+                unit_ref_set(&u->slice, slice);
+                return 1;
         }
 
         return 0;
@@ -878,7 +897,6 @@ const BusProperty bus_unit_properties[] = {
         { "Id",                   bus_property_append_string,         "s", offsetof(Unit, id),                                         true },
         { "Names",                bus_unit_append_names,             "as", 0 },
         { "Following",            bus_unit_append_following,          "s", 0 },
-        { "Slice",                bus_unit_append_slice,              "s", 0 },
         { "Requires",             bus_unit_append_dependencies,      "as", offsetof(Unit, dependencies[UNIT_REQUIRES]),                true },
         { "RequiresOverridable",  bus_unit_append_dependencies,      "as", offsetof(Unit, dependencies[UNIT_REQUIRES_OVERRIDABLE]),    true },
         { "Requisite",            bus_unit_append_dependencies,      "as", offsetof(Unit, dependencies[UNIT_REQUISITE]),               true },
@@ -937,7 +955,11 @@ const BusProperty bus_unit_properties[] = {
         { "ConditionTimestampMonotonic", bus_property_append_usec,    "t", offsetof(Unit, condition_timestamp.monotonic)      },
         { "ConditionResult",      bus_property_append_bool,           "b", offsetof(Unit, condition_result)                   },
         { "LoadError",            bus_unit_append_load_error,      "(ss)", 0 },
-        { "ControlGroup",         bus_property_append_string,         "s", offsetof(Unit, cgroup_path),                                true },
         { "Transient",            bus_property_append_bool,           "b", offsetof(Unit, transient)                          },
         { NULL, }
 };
+
+const BusProperty bus_unit_cgroup_properties[] = {
+        { "Slice",                bus_unit_append_slice,              "s", 0 },
+        { "ControlGroup",         bus_property_append_string,         "s", offsetof(Unit, cgroup_path),                                true },
+};