TCP Server in Go

This project is a simple TCP server implementation written in Go.
It demonstrates how to create a server that listens on a TCP port, accepts multiple client connections, and reads messages sent by connected clients.

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Features

• Listens for incoming TCP connections on a specified port.
• Accepts multiple client connections concurrently using goroutines.
• Reads messages from clients and sends them to a central message channel.
• Logs all received messages.
• Graceful shutdown through a quit channel.

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Project Structure

• server struct: Holds the server configuration including listener, quit channel, and message channel.
• newServer: Constructor function to initialize a new server instance.
• Start: Starts the server, listens for connections, and begins accepting clients.
• acceptLoop: Continuously accepts new client connections and starts a readLoop for each.
• readLoop: Handles reading data from each client connection and forwards it to the message channel.
• main: Creates and starts the server on port 3000, logging all incoming messages.

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Requirements

• Go 1.18 or higher

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Getting Started

1. Clone the repository

git clone https://github.com/yourusername/tcp-server-go.git
cd tcp-server-go

2. Run the server

go run main.go

By default, the server listens on port 3000.

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Usage

1. Start the server.
2. Use a TCP client such as telnet or nc (netcat) to connect:

   nc localhost 3000

3. Type a message and press Enter.
4. The server will display the received message in the terminal.

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Example

Terminal 1: Start the server

go run main.go

Terminal 2: Connect as a client

nc localhost 3000

Output on server side

new connection to the server: 127.0.0.1:54321
hello server
received msg from connection  hello server

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Notes

• The server currently runs indefinitely until stopped manually.
• Messages from disconnected clients are ignored, but the server continues accepting new connections.