Small data exchange program using UNIX signals.
https://www.geeksforgeeks.org/inter-process-communication-ipc/?ref=lbp
https://www.man7.org/linux/man-pages/man7/signal.7.html
https://en.wikipedia.org/wiki/Signal_(IPC)
https://www.tutorialspoint.com/unix_system_calls/sigaction.htm
https://people.kth.se/~johanmon/ose/assignments/signals.pdf
https://pubs.opengroup.org/onlinepubs/007904875/functions/sigaction.html
https://stackoverflow.com/questions/231912/what-is-the-difference-between-sigaction-and-signal
https://www.ibm.com/docs/en/i/7.2?topic=ssw_ibm_i_72/apis/sigactn.htm
http://manpagesfr.free.fr/man/man2/sigaction.2.html
https://www.dummytextgenerator.com/#jump
https://excerpts.numilog.com/books/9782212677607-extrait.pdf
https://en.wikipedia.org/wiki/Thread_(computing)
https://www.man7.org/linux/man-pages/man5/core.5.html
https://www.geeksforgeeks.org/introduction-of-process-management/?ref=lbp
https://en.wikipedia.org/wiki/Process_(computing)
https://man7.org/linux/man-pages/man2/kill.2.html
https://www.tutorialspoint.com/unix/unix-signals-traps.htm
https://linuxhint.com/signal_handlers_c_programming_language/
https://decimal.info/hex-to-decimal/1/how-to-convert-0X10-to-decimal.html
https://www.rapidtables.com/convert/number/ascii-to-binary.html
https://www.mkssoftware.com/docs/man5/siginfo_t.5.asp
https://sites.uclouvain.be/SystInfo/notes/Theorie/Fichiers/fichiers-signaux.html
https://www.tutorialspoint.com/unix/unix-processes.htm
http://convertalot.com/bitwise_operators.html
https://doc.lagout.org/LPI/LINUX%20Préparation%20à%20la%20certification%20LPIC-1%20%28LPI%20101%20LPI%20102%29%202ème%20Edition.pdf
https://bitwisecmd.com
https://jameshfisher.com/2017/01/13/c-sigaction/
https://man7.org/linux/man-pages/man2/sigaction.2.html
https://miro.com/app/board/uXjVOY6DYx8=/?invite_link_id=689990184473
https://leeters.netlify.app/what-you-need-to-know-about-minitalk/
https://www.youtube.com/watch?v=L3XuR-iRysU
https://askcodez.com/gestion-du-signal-et-sigemptyset.html
C en action. -Yves Mettier
Développement système sous Linux: Ordonnancement multi-tâche, gestion mémoire, communications, programmation réseau. - Christophe Blaess