62 lines
1.7 KiB
C
62 lines
1.7 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: o_ :::::: ::: */
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/* server.c :+: / :+::+: :+: */
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/* +:+ > +:++:+ +:+ */
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/* By: whaffman <whaffman@student.codam.nl> +#+ +:+ +#++#++:++#++ */
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/* +#+ +#+#+ +#++#+ +#+ \o/ */
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/* Created: 2024/07/18 17:24:54 by whaffman #+#+# #+#+# #+# #+# | */
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/* Updated: 2024/07/27 18:23:52 by whaffman ### ### ### ### / \ */
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/* */
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/* ************************************************************************** */
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#include <signal.h>
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#include <unistd.h>
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#include <stdio.h>
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#include "libft/libft.h"
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void signal_handler(int signum, siginfo_t *info, void *context)
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{
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static int count = 0;
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static char c = '\0';
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static pid_t client_pid;
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(void) context;
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if (client_pid != info->si_pid)
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{
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count = 0;
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c = '\0';
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client_pid = info->si_pid;
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}
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count++;
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if (signum == SIGUSR1)
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c |= 1 << (8 - count);
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if (count == 8)
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{
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if (c)
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write(1, &c, 1);
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else
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write(1, "\n", 1);
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c = '\0';
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count = 0;
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}
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kill(info->si_pid, SIGUSR1);
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return ;
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}
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int main(void)
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{
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struct sigaction sa;
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ft_putstr("MiniTalk Server started on pid: ");
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ft_putnbr(getpid());
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ft_putstr("\n");
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sa.sa_sigaction = signal_handler;
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sigemptyset(&sa.sa_mask);
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sa.sa_flags = SA_SIGINFO;
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sigaction(SIGUSR1, &sa, NULL);
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sigaction(SIGUSR2, &sa, NULL);
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while (1)
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pause();
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}
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