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	bsleep - Breakable sleep in C
	=============================

	A couple of days ago I stumbled upon an improvised breakable sleep.
	I wrote about in another post:
	2024-06-25 - bsleep (bashism)

	Since I generally strife to get independant from the use of bashisms, I
	decided to rewrite bsleep in C.

	And here we go...

	Breakable sleep in C. The button 'b' breaks the sleep. This can be used
	to chain two tasks on the commandline, with the second task only waiting
	for you to press 'b'.

	git clone git://kroovy.de/bsleep

	Build dependencies
	- C compiler
	- libc

	This program is meant to help people complete tasks on the commandline.
	Also the source code can be studied as a simple approach to forking a
	process in C.

	#include <signal.h>
	#include <stdio.h>
	#include <stdlib.h>
	#include <unistd.h>

	int
	main(void)
	{
	int i,in,pid;
	pid = fork();

	if (pid == 0) {
	/* child */
	for (i=1;;i++) {
	printf("%d ", i); fflush(stdout); /* comment out if you prefe…
	sleep(1);
	}
	return 0;

	} else if (pid > 0) {
	/* parent */
	system ("/bin/stty raw");
	while ((in = getchar()) != 'b') {
	printf("%c ", in);
	}
	system ("/bin/stty cooked");
	printf("\n");
	kill(pid, SIGKILL); /* kill child */
	return 0;

	} else {
	return -1;
	}
	return 0;
	}

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