Minitalk

📌 Project Overview

Minitalk is a 42 school project that demonstrates interprocess communication using UNIX signals. The project consists of a server and a client program, where the client sends a string of characters to the server using SIGUSR1 and SIGUSR2 signals, which the server reconstructs and displays.

🚀 Features

• Implements signal handling using sigaction().
• Transmits characters bit by bit using SIGUSR1 and SIGUSR2.
• Supports Unicode and emoji characters.
• Handles error cases, including invalid PIDs.
• Implements bonus features, such as acknowledgment signals and improved performance.

📂 Project Structure

Minitalk/
├── src/
│   ├── client.c
│   ├── minitalk.h
│   ├── server.c
├── bonus/
│   ├── client_bonus.c
│   ├── server_bonus.c
├── includes/
├── libft/
│   ├── libft.a
├── Makefile
├── README.md

🛠️ Compilation

To compile the mandatory part:

make

To compile the bonus part:

make bonus

To clean object files:

make clean

To remove all compiled binaries and libraries:

make fclean

To recompile everything:

make re

🏃‍♂️ Usage

1️⃣ Run the server:

./server

It will display:

Server PID: <PID>

2️⃣ Run the client to send a message:

./client <server_PID> "Hello, world!"

The server will then output:

Hello, world!

📝 Bonus Features

• Acknowledgment Signal: The server sends a signal back to the client after receiving a full character.
• Unicode Support: Allows sending and displaying Unicode characters and emojis.
• Improved Performance: Optimized to prevent unnecessary delays.

📜 Authors

• Developed as part of the 42 School curriculum.
• Successfully validated