42_minitalk

Description

This project consists of creating a communication program in the form of a client and a server. The communication between client and server has to be done only using UNIX signals (SIGUSR1 and SIGUSR2). The server can receive strings from several clients in a row without needing to restart.

Prerequisites

• Nothing needed

Usage

1. make
2. Run ./server on a shell and leave it running
3. Run ./client <SERVER_PID> <YOUR_MESSAGE> on another shell

Lessons

• UNIX Signals
• Processes
• Bitwise Operators
• Pause, sleep, exit

Resources

• How signals work (es)
• More about signals (es)
• Even more about signals [VIDEO] (es)
• Bitwise Operators in C
• Using Pause
• How to send a self-correcting message (Hamming codes) [VIDEO]