Todo

Extra

Add support for multiple clients at the same time server 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