#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>
#include <fcntl.h>

int main ()
{
	int fds[2];
	char buf[100000];
	int size = 0, ret;

	if (pipe (fds) < 0) {
		perror ("pipe");
		return 1;
	}
	if (fcntl (fds[1], F_SETFL, O_NONBLOCK|O_NDELAY) < 0) {
		perror ("fcntl");
		return 1;
	}
	while (1) {
		ret = write (fds[1], buf, 100000);
		if (ret < 0)
			break;
		size += ret;
	}
	printf ("Groesse: %d\n", size);
	return 0;
}