obj: add header-offset field to object_type

this allows the object header to be placed anywhere within the larger object structure. the object system now also ensures that the object is zero-initialised during allocation.
2023-05-06 22:22:05 +01:00
parent d8de0ddfe4
commit a79d109fcc
7 changed files with 12 additions and 2 deletions
--- a/obj/set.c
+++ b/obj/set.c
@@ -58,6 +58,7 @@ static kern_status_t set_get_child_named(struct object *obj, const char *name, s
 static struct object_type set_type = {
 	.ob_name = "set",
 	.ob_size = sizeof(struct set),
+	.ob_header_offset = offsetof(struct set, s_base),
 	.ob_ops = {
 		.query_name = set_query_name,
 		.get_named = set_get_child_named,