Function test_shrink

test/file-register.c:67–103

}

static int test_shrink(struct io_uring *ring)
{
	int ret, off, fd;
	int *files;

	files = open_files(50, 0, 0);
	ret = io_uring_register_files(ring, files, 50);
	if (ret) {
		fprintf(stderr, "%s: register ret=%d\n", __FUNCTION__, ret);
		goto err;
	}

	off = 0;
	do {
		fd = -1;
		ret = io_uring_register_files_update(ring, off, &fd, 1);
		if (ret != 1) {
			if (off == 50 && ret == -EINVAL)
				break;
			fprintf(stderr, "%s: update ret=%d\n", __FUNCTION__, ret);
			break;
		}
		off++;
	} while (1);

	ret = io_uring_unregister_files(ring);
	if (ret) {
		fprintf(stderr, "%s: unregister ret=%d\n", __FUNCTION__, ret);
		goto err;
	}

	close_files(files, 50, 0);
	return 0;
err:
	close_files(files, 50, 0);
	return 1;
}


static int test_grow(struct io_uring *ring)