RESP-CPP

A simple, non-blocking TCP server written in C++ using epoll.

Overview

This project implements a lightweight event-driven TCP server. Currently, it functions as an echo server that reads incoming data from connected clients and immediately writes it back out.

Project Structure

• src/main.cpp: Entry point of the server.
• src/server.h / src/server.cpp: Contains the Server class which manages client connections and the epoll event loop.
• src/client.h: Defines the ClientState structure for tracking read/write buffers of connected clients.
• src/utils.h / src/utils.cpp: Contains utility functions such as set_nonblocking.

Building

A Makefile is provided to build the project using g++ (requires C++17 support).

make

The executable will be located at build/resp-server.

Running

./build/resp-server

The server will listen for TCP connections on port 6380.

Usage

You can test the server using netcat:

nc localhost 6380

Some links to in mind while building something like this

1. beej guide for network programming to understand what each thing does if you are new to socket programming in c++ or c link -> https://beej.us/guide/bgnet/html/split-wide/index.html