-void dispatch_data_init(dispatch_data_t data, const void *buffer, size_t size,
- dispatch_block_t destructor);
-void _dispatch_data_dispose(dispatch_data_t data);
+void _dispatch_data_init_with_bytes(dispatch_data_t data, const void *buffer,
+ size_t size, dispatch_block_t destructor);
+void _dispatch_data_dispose(dispatch_data_t data, bool *allow_free);
+void _dispatch_data_set_target_queue(struct dispatch_data_s *dd,
+ dispatch_queue_t tq);