Ability to send and receive at the same time?

I have now a simple client program and a simple server program for sending string messages back and forth.

At the minute I send something from the client to the server, the client will now wait until it has a reply, and visa versa. I want it to allow me to send a message, then another message without having to wait for a reply.

From reading posts here and a tutorial it seems maybe I need to use select? But i'm not exactly sure.

Would it be possible for someone to clarify for me if i'm correct to save me wasting time learning something incorrect.

Thanks in advance.

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