Re: [PATCH liburing 1/6] tests: test the query interface

[Pavel Begunkov <asml.silence@gmail.com>]

On 9/11/25 12:26, Pavel Begunkov wrote:
> Add the header / definitions and tests for the query interface.
...> +static int test_chain_loop(void)
> +{
> +	int ret;
> +	struct io_uring_query_opcode op1, op2;
> +	struct io_uring_query_hdr hdr2 = {
> +		.query_op = IO_URING_QUERY_OPCODES,
> +		.query_data = uring_ptr_to_u64(&op2),
> +		.size = sizeof(struct io_uring_query_opcode),
> +	};
> +	struct io_uring_query_hdr hdr1 = {
> +		.query_op = IO_URING_QUERY_OPCODES,
> +		.query_data = uring_ptr_to_u64(&op1),
> +		.size = sizeof(struct io_uring_query_opcode),
> +	};
> +	struct io_uring_query_hdr hdr_self_circular = {
> +		.query_op = IO_URING_QUERY_OPCODES,
> +		.query_data = uring_ptr_to_u64(&op1),
> +		.size = sizeof(struct io_uring_query_opcode),
> +		.next_entry = uring_ptr_to_u64(&hdr_self_circular),
> +	};
> +
> +	hdr1.next_entry = uring_ptr_to_u64(&hdr2);
> +	hdr2.next_entry = uring_ptr_to_u64(&hdr1);
> +	ret = io_uring_query(NULL, &hdr1);
> +	if (!ret) {
> +		fprintf(stderr, "chain loop failed %i\n", ret);
> +		return T_EXIT_FAIL;
> +	}
> +
> +	ret = io_uring_query(NULL, &hdr_self_circular);
> +	if (!ret) {
> +		fprintf(stderr, "chain loop failed %i\n", ret);
> +		return T_EXIT_FAIL;
> +	}
> +
> +	return T_EXIT_PASS;
> +}

It might be a good idea not to test the capping and add
a "cycle + SIGKILL" test instead. I'll do that later

-- 
Pavel Begunkov