minitalk/Readme.md

Minitalk

Minitalk is a simple project that requires you to use unix signals to send over strings between 2 programs. We can only use SIGUSR1 and SIGUSR2 and we can use the kill function to send them over

---

Improvements

Add support for multiple clients at the same time

Client

• client pings server every 100 msecs, and only starts writing after receiving SIGUSR2 back
• client sends \0 when done

Server

• server waits for a signal when pid = 1
• when server receives signal it sets the pid to the sender pid
• it keeps ignoring signals from other PIDs untill it received \0 from the current pid
• after \0 is received pid is set back to 1

---

Bugs

none pid would return 0 when run in background

---

Usage

1. Simply clone or download the repository
2. Run make in the cloned directory
3. Start the server with ./server in the cloned directory
4. Open a second terminal in the same directory and run ./client [PID from server] ["Message in quotes"]

---

Tester

• add valgrind to tester
• check for -Wall -Werror -Wextra

Usage

1. Download test.sh into your own minitalk directory
2. Make the file executable chmod +x test.sh
3. Run ./test.sh to start the test

---

This project is part of the studies at 42