#!/usr/bin/env python

import sys

class Obj:
	def __init__(self, parent, name):
		self.parent = parent
		self.name = name
		if parent:
			setattr(parent, name, self)

	def get_name(self):
		me = self.name if self.name else ''
		pa = self.parent.get_name() + '.' if self.parent else ''
		return pa + me

class Foo(Obj):
	def __init__(self, parent, latency=None):
		Obj.__init__(self, parent, 'foo')
		self.latency = latency
		self.v = 0
		sched.enque( latency, self.add, (0, ) )

	def add(self, a):
		self.v += a
		msg = '{} v={}'.format( self.get_name(), self.v )
		dbgout(msg)
		if self.v < 55:
			sched.enque( self.latency, self.add, (a+1,) )

class Sched:
	def __init__(self):
		self.que = []
		self.now = 0
	
	def enque(self, latency, f, args=() ):
		tm = self.now
		if latency:
			tm = tm + latency
		t = (tm, f, args)
		n = len(self.que)
		while n > 0:
			(tm_n, _, _) = self.que[ n - 1 ]
			if tm >= tm_n:
				break
			n -= 1
		self.que.insert(n, t)

	def main_loop(self):
		while len(self.que) > 0:
			(tm, f, args) = self.que.pop(0)
			self.now = tm
			f(*args)

def dbgout(s, always=False):
	if always or '-v' in sys.argv:
		print '{} {}'.format( sched.now, s )
		sys.stdout.flush()

if __name__ == "__main__":
	sched = Sched()

	o = Obj(None, 'o')
	Foo(o)

	slow = Obj(o, 'slow')
	Foo(slow, 10)

	slow_12 = Obj(o, 'slow_12')
	Foo(slow_12, 12)

	sched.main_loop()

# EOF