Issuing and monitoring status of multiple queries via a non-blocking connection

Hi,

I need a non-blocking client-side software which has a list of queries to execute in parallel and need to know which queries have finished execution within a single connection to the MariaDB server (single thread). The current MariaDB implementation allows us to learn if the latest query has finished its execution:

https://mariadb.com/kb/en/about-non-blocking-operation-in-the-client-library/

However, I need to execute multiple queries via a single connection in a non-blocking manner and learn which of them have finished execution for every time interval. Once certain queries among them have finished execution, I need to execute the next set of queries via the same connection while other queries are still not finished with their execution. I wonder how I can accomplish this (e.g., which part of the source code should I modify?)