from CRC import do_crc
from select import select
import socket, logging
+from time import time, sleep
asynchronous_responses = [ '400', '401', # door open/closed
'610', # switches changed
DOOR = 1
SWITCH = 2
KEY = 3
+TICK = 4
class VendingException(Exception): pass
class VendingMachine:
def __init__(self, rfh, wfh):
self.events = []
- self.secret = 'AAAAAAAAAAAAAAAA'
+ # Secret
+ self.secret = 'SN4CKZ0RZZZZZZZZ'
self.rfh = rfh
self.wfh = wfh
self.challenge = None
def await_prompt(self):
self.wfh.flush()
state = 1
+ timeout = 0.5
prefix = ''
s = ''
+ # mtearle - vending machine was dying wait for a response from
+ # the hardware, suspect it was missing characters
+ #
+ # fixed by migration to pyserial - but future good place to start
while True:
try:
s = self.rfh.read(1)
elif code == '401':
self.events.append((DOOR, 0))
elif code == '610':
- self.events.append((SWITCH, None))
+ # NOP this. Nothing handles this yet.
+ #self.events.append((SWITCH, None))
self.interpret_switches(text)
elif code[0] == '2':
self.events.append((KEY, int(code[1:3])))
def next_event(self, timeout = None):
# we don't want to buffer in the serial port, so we get all the events
# we can ASAP.
+ if timeout < 0: timeout = 0
if len(self.events) > 0: timeout = 0
while True:
(r, _, _) = select([self.rfh], [], [], timeout)
timeout = 0
else:
break
- if len(self.events) == 0: return None
+ if len(self.events) == 0: return (TICK, time())
ret = self.events[0]
del self.events[0]
return ret