int image_io_read_data_finish(struct image_io_read_data_internals *rdi, struct image_io *io);
void image_io_read_data_break(struct image_io_read_data_internals *rdi, struct image_io *io);
int image_io_read_data_finish(struct image_io_read_data_internals *rdi, struct image_io *io);
void image_io_read_data_break(struct image_io_read_data_internals *rdi, struct image_io *io);