Function test_same

test/regbuf-clone.c:582–622

}

static int test_same(void)
{
	struct iovec vecs[2] = { };
	struct io_uring src;
	int ret;

	ret = io_uring_queue_init(1, &src, 0);
	if (ret) {
		fprintf(stderr, "ring_init: %d\n", ret);
		return T_EXIT_FAIL;
	}

	if (posix_memalign(&vecs[0].iov_base, 4096, BUF_SIZE))
		return T_EXIT_SKIP;
	vecs[0].iov_len = BUF_SIZE;

	vecs[1].iov_base = NULL;
	vecs[1].iov_len = 0;

	ret = io_uring_register_buffers(&src, vecs, 2);
	if (ret) {
		fprintf(stderr, "reg buffers: %d\n", ret);
		return T_EXIT_FAIL;
	}

	ret = io_uring_clone_buffers_offset(&src, &src, 1, 0, 2, IORING_REGISTER_DST_REPLACE);
	if (ret) {
		fprintf(stderr, "clone offset: %d\n", ret);
		return T_EXIT_FAIL;
	}

	ret = io_uring_unregister_buffers(&src);
	if (ret) {
		fprintf(stderr, "rsc unregister buffers: %d\n", ret);
		return T_EXIT_FAIL;
	}

	free(vecs[0].iov_base);
	io_uring_queue_exit(&src);
	return T_EXIT_PASS;
}

int main(int argc, char *argv[])
{