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Minitalk

Description

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

Tester

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