#!/usr/bin/env python2.5

import sys
import os
import time
import signal

def alarm_handler(*args):
	sys.stderr.write('alarmmmmmmmmmmm!\n')

def sigio_handler(*args):
	sys.stderr.write('Entering SIGIO handler\n')
	os.kill(os.getpid(), signal.SIGALRM)
	sys.stderr.write('Leaving SIGIO handler\n')

signal.signal(signal.SIGIO, sigio_handler)
signal.signal(signal.SIGALRM, alarm_handler)

os.kill(os.getpid(), signal.SIGIO)

ini = time.time()
while True:
	if time.time() - ini > 3.0:
		sys.stderr.write('Loop!\n')
		ini = time.time()