#!/usr/local/bin/python
'''This program demonstrates a crash in python 2.4.1 on Debian w/2.6 kernel.
'''
import signal, sys, threading, time, urllib2


class WellBehavedClient:
	'''A well-behaved client.  It tries to follow all the HTTP rules properly.
	'''
	def __init__ (self):
		self._url = 'http://www.python.org'

	def run (self):
		'''Run, repeating forever.
		'''
		while True:
			self.runOnce ()

	def runOnce (self):
		'''Fetch one file, reading it very slowly (just to avoid swamping the server).
		'''
		sys.stderr.write ('c')
		connection = urllib2.urlopen (self._url)
		sys.stderr.write ('C')
		while True:
			data = connection.read (10)
			sys.stderr.write ('.')
			time.sleep (1.0)
			if not data:
				break


def run (threadCount=10):
	'''Launch a barrage of clients; each running in its own daemon thread.
	Return the list of client threads.
	'''
	print 'Using %d threads' % threadCount
	# Make a list of clients:
	clients = [WellBehavedClient () for i in range (threadCount)]

	# Create a list of threads; each thread is poised to execute one of the clients:
	threads = [threading.Thread (target=client.run, args=()) for client in clients]

	# Start the threads:
	for thread in threads:
		thread.setDaemon (True)
		thread.start ()

	# Block until all of the threads have finished (or a signal is received):
	time.sleep (30000)
	#for thread in threads:
	#	thread.join (1.0)


run (10)  # N.B. the run() function is called when this module is imported or executed.