#[no_mangle]
extern "C" fn stream_renderer_transfer_write_iov(
_handle: u32,
_ctx_id: u32,
_level: c_int,
_stride: u32,
_layer_stride: u32,
_box_: *mut virgl_box,
_offset: u64,
_iovec: *mut iovec,
_iovec_cnt: c_uint
) -> c_int