Challenge
Make two processes communicate using only UNIX signals, without any pipe or socket: transmit a character string from a client to a server relying solely on SIGUSR1 and SIGUSR2.
École 42 ParisStudent, École 42 project
Minitalk, inter-process communication using UNIX signals
École 42 project, data exchange between a client and a server in C using only UNIX signals (SIGUSR1 / SIGUSR2), with binary encoding of characters.
Impact
- Inter-process communication relying only on UNIX signals
- Binary encoding of characters into SIGUSR1 / SIGUSR2
- Message reconstruction on the server side via signal handlers
What was done
A client/server pair where the client encodes each character bit by
bit into SIGUSR1/SIGUSR2 and the server reconstructs it via signal
handlers, with handling of the PID, the timing and the
acknowledgment.
Stack
The technologies used on this mission.
- C
- Signaux UNIX (SIGUSR1/SIGUSR2)
- IPC
- Encodage binaire
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