Chat Serverice using I/O Multiplexing:
Implement a concurrent 'Chat Server' and Client . The server should
have following features:
s
(a) It will keep track of all the connected clients that include:
1) Registering a new client
2) Removing a client from the list when it terminates
(b) Server has predefined Chat Rooms. A user can join any room of his
choice and messages
sent by a user will be sent only to the other users in the same room.
(c) Every time a message arrives from a client ( delimited by a new
line char.), the server
sends that message to all the registered clients in that room. Server
will also prepend a
string "<cli_ip_addr:cli_port>" to the message before multicasting it
to the registered
clients so that the sender of the message is identified by other clients.

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