ChatRoom

Overview

A distributed chat server system supporting multiple chat rooms with different message ordering guarantees. The system consists of servers and clients, where each client connects to one server, and servers communicate with each other using UDP-based multicast.

Features

Server Capabilities:

• Supports multiple chat rooms (minimum 10)
• Handles up to 250 clients total
• Implements three ordering modes:
• Unordered multicast
  • FIFO multicast
  • Totally ordered multicast
• Static membership configuration
• Verbose logging option (-v)

Client Features:

• Connection to single server
• Command-line interface
• Nickname support
• Room management

Building and Running

Prerequisites

C++ compiler
Make build system
UDP socket support

Compilation

bash make

Running the Server

bash ./chatserver <config_file> <server_index> [-v] [-o <ordering_mode>]

Ordering modes:

unordered (default)
fifo
total

Running the Client

bash ./chatclient <server_address:port>

Configuration File Format

Without Proxy

text 127.0.0.1:5000 127.0.0.1:5001 127.0.0.1:5002 With Proxy

text 127.0.0.1:8000,127.0.0.1:5000 127.0.0.1:8001,127.0.0.1:5001 127.0.0.1:8002,127.0.0.1:5002

Testing

Automated Testing Use the provided stress tester:

bash ./stresstest -o <ordering_mode> -m <messages> -c <clients> -g <groups> <config_file>