Below is the file 'System.py' from this revision. You can also download the file.

#!/usr/bin/env python

# what do we need to track in System
#
# 1/ Location of Journal Store
# 2/ Location of Ledger Store
# 3/ Location of Chart of Accounts Store
#
# 4/ Max Journal ID
#
#
#
# Store as a shelf

from time import time, sleep

#FOO#DOOR = 1
#FOO#SWITCH = 2
#FOO#KEY = 3
TICK = 4

class System:
	def __init__(self):
		#VS
		self.events = []
		#
		self.connected = False
		self.file = None
		self.db = None
		self.cursor = None
		self.store = None
		pass

	def status(self):
		pass

	def next_event(self, timeout = None):
		if timeout < 0: timeout = 0
		if len(self.events) > 0: timeout = 0
#		while True:
#			(r, _, _) = select([self.rfh], [], [], timeout)
#			if r:
#				self.get_response(async = True)
#				timeout = 0
#			else:
#				break
		if len(self.events) == 0: return (TICK, time())
		ret = self.events[0]
		del self.events[0]
		return ret