ayogun / mini_talk

The purpose of this project is to code a small data exchange program using only two UNIX signals.(SIGUSR1 and SIGUSR2) Server & Client programs talking with each other with using SIGUSR1 and SIGUSR2 signals.

minitalk

Project Information

About

The purpose of this project is to code a small data exchange program using UNIX signals.

Mandatory

• Produce server & client executables
• client must communicate a string passed as a parameter to server (referenced by its process ID) which then displays it
• Use SIGUSR1 & SIGUSR2 signals ONLY

Bonus

• Add reception acknowledgement system
• Support Unicode characters

Allowed Functions

• malloc
• free
• write
• getpid
• signal
• sigemptyset & sigaddset
• sigaction
• pause
• kill
• sleep
• usleep
• exit

Compilation

1. Clone repo
2. Compile files with writing make.

Mendatory Part

This project is to create a communication program in the form of a client and a server.

• The server must be started first. After its launch, it has to print its PID.
• The client takes two parameters:
  • The server PID.
  • The string to send.
• The client must send the string passed as a parameter to the server. Once the string has been received, the server must print it.
• The server has to display the string pretty quickly. (1 second for displaying 100 characters is way too much!)
• The server should be able to receive strings from several clients in a row without needing to restart.
• The communication between the client and the server has to be done only using UNIX signals.
• UNIX signals are limited to these two signals: SIGUSR1 and SIGUSR2.

Bonus Part

• The server acknowledges every message received by sending back a signal to the client.
• The program must handle unicode characters.

Technologies

• C
• Makefile
• UNIX signals

Resources

Manual, ressources and stuff.

• signals manual
• SIGUSR1 & SIGUSR2
• Introduction to UNIX Signals
• 😏😏😏
• sigaction
• UNIX SIGNALS

Demo