Client-Server Chat (C++ using select())

A lightweight multi-client chat server implemented in C++ using the POSIX select() and POLL() API. The server handles multiple client connections concurrently and supports real-time message broadcasting from the server console.

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🚀 Features

• ✅ Supports multiple clients using a single-threaded select() and POLL() API.
• ✅ Server can send messages to all connected clients via stdin
• ✅ Thread-safe message queue using std::queue + std::mutex
• ✅ Gracefully handles client disconnections
• ✅ Uses low-level system calls: socket, bind, listen, accept, read, send, select

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🛠️ Build Instructions

Make sure you're compiling on a Unix-like system (Linux/macOS or WSL on Windows).

g++ -std=c++17 -pthread server.cpp -o chat_server