unit_notify(UNIT(s), state_translation_table[old_state], state_translation_table[state]);
}
+static int snapshot_load(Unit *u) {
+ Snapshot *s = SNAPSHOT(u);
+
+ assert(u);
+ assert(u->meta.load_state == UNIT_STUB);
+
+ /* Make sure that only snapshots created via snapshot_create()
+ * can be loaded */
+ if (!s->by_snapshot_create)
+ return -ENOENT;
+
+ u->meta.load_state = UNIT_LOADED;
+ return 0;
+}
+
static int snapshot_coldplug(Unit *u) {
Snapshot *s = SNAPSHOT(u);
unit_serialize_item(u, f, "state", snapshot_state_to_string(s->state));
unit_serialize_item(u, f, "cleanup", yes_no(s->cleanup));
- SET_FOREACH(other, u->meta.dependencies[UNIT_REQUIRES], i)
- unit_serialize_item(u, f, "requires", other->meta.id);
+ SET_FOREACH(other, u->meta.dependencies[UNIT_WANTS], i)
+ unit_serialize_item(u, f, "wants", other->meta.id);
return 0;
}
else
s->cleanup = r;
- } else if (streq(key, "requires")) {
-
- if ((r = unit_add_dependency_by_name(u, UNIT_AFTER, value, NULL, true)) < 0)
- return r;
+ } else if (streq(key, "wants")) {
- if ((r = unit_add_dependency_by_name(u, UNIT_REQUIRES, value, NULL, true)) < 0)
+ if ((r = unit_add_two_dependencies_by_name(u, UNIT_AFTER, UNIT_WANTS, value, NULL, true)) < 0)
return r;
} else
log_debug("Unknown serialization key '%s'", key);
name = n;
}
- r = manager_load_unit(m, name, NULL, &u);
+ r = manager_load_unit_prepare(m, name, NULL, &u);
free(n);
if (r < 0)
goto fail;
+ SNAPSHOT(u)->by_snapshot_create = true;
+ manager_dispatch_load_queue(m);
+ assert(u->meta.load_state == UNIT_LOADED);
+
HASHMAP_FOREACH_KEY(other, k, m->units, i) {
if (UNIT_VTABLE(other)->no_snapshots)
if (!UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(other)))
continue;
- if ((r = unit_add_dependency(u, UNIT_REQUIRES, other, true)) < 0)
- goto fail;
-
- if ((r = unit_add_dependency(u, UNIT_AFTER, other, true)) < 0)
+ if ((r = unit_add_two_dependencies(u, UNIT_AFTER, UNIT_WANTS, other, true)) < 0)
goto fail;
}
.no_snapshots = true,
.no_gc = true,
- .load = unit_load_nop,
+ .load = snapshot_load,
.coldplug = snapshot_coldplug,
.dump = snapshot_dump,