Function librbd_sys::rbd_copy_with_progress

pub unsafe extern "C" fn rbd_copy_with_progress(
    image: rbd_image_t, 
    dest_p: rados_ioctx_t, 
    destname: *const c_char, 
    cb: librbd_progress_fn_t, 
    cbdata: *mut c_void
) -> c_int