#include <unistd.h>
#include <stdio.h>
#include <err.h>
#include <pthread.h>
#include <stdlib.h>

static void *run(void *)
{
	sleep(1000);
	return NULL;
}

int main(int argc, char *argv[])
{
	int pid, level, i;
	pthread_t thr;
	int maxlevel = atoi(argv[1]);

	for (level = 0; level < maxlevel; level++) {
		pid = fork();
		if (pid == -1)
			err(1, "fork");

		fprintf(stderr, ".");
		#if 0
		if (pid == 0) {
			for (i = 0; i < 4; i++)
				pthread_create(&thr, NULL, run, NULL);

		}
		#endif
	}
	sleep(1000);
}