The objective of this assignment is to implement a concurrent TCP server and client.  You may use any of the techniques described in class (multiple processes, multiple threads, or a single process using select).

The service you implement should be session-oriented, where the connection between client and server may remain open for an extended period of time (as in ftp, telnet, or your rfq service).

A minimal example would be a concurrent version of your rfq server or my echo server.  For additional credit, you may implement a more complex service.  One example would be a real-time on-line auction service.  A group of clients can bid on items advertised for sale by the server.  The server accepts bids up to a certain time limit, or until an interval passes in which no new bids are received.  When the auction is completed, the server announces the winner.  Another concurrent service would be a multiplayer game.

An alternative way to earn additional credit would be to implement more than one version of the server, using different techniques to handle the concurrent clients.