Refactor: centralize T_NEXUS init

src/node.c

@@ -234,8 +234,19 @@ node_new(struct pesi *pesi, enum n_type type, enum n_state state)
 	AN(node);
 	node->type = type;
 	node->state = state;
-	if (type == T_NEXUS)
+	switch (type) {
+	case T_NEXUS:
 		VSTAILQ_INIT(&node->nexus.children);
+		node->nexus.gzip.magic = NEXUS_GZIP_MAGIC;
+		break;
+	case T_DATA:
+	case T_CRC:
+	case T_SUBREQ:
+		break;
+	default:
+		WRONG("node type in node_new");
+	}
+
 	return (node);
 }
 

src/vdp_pesi.c

@@ -639,7 +639,6 @@ root_node_new(struct pesi *pesi, struct req *req)
 	root_node = node_new(pesi, T_NEXUS, ST_PRIVATE);
 	CHECK_OBJ_NOTNULL(root_node, NODE_MAGIC);
 	root_node->nexus.req = req;
-	root_node->nexus.gzip.magic = NEXUS_GZIP_MAGIC;
 	root_node->nexus.npending_private = 1;
 
 	return (root_node);
@@ -992,7 +991,6 @@ vdp_pesi_bytes(struct vdp_ctx *vdx, enum vdp_action act, void **priv,
 				AZ(child);
 				child = node_new(pesi, T_NEXUS, ST_PRIVATE);
 				CHECK_OBJ_NOTNULL(child, NODE_MAGIC);
-				child->nexus.gzip.magic = NEXUS_GZIP_MAGIC;
 
 				node_insert(tree, node, child);