missing the epoll client?

in 'server' folder i can see a service main file using epoll architecture,but in 'client' folder there wasn't the corresponding client file~could you please update the cilent using epoll which can be connected with the epoll server? THs

Start by comparing the service main file in the server folder with the existing code in the client folder, then trace how the server uses epoll and how the current client connects. Done means the client uses epoll and can connect successfully to the epoll-based server; the issue does not name a test or exact file to run.

Written by the indexing model from the issue text.