X-Git-Url: https://git.ucc.asn.au/?a=blobdiff_plain;f=sql-edition%2Fservers%2FVendingMachine.py;h=d73eb4beb5234ba96c27cee0fafd22cd96156a95;hb=a4b49159270882af29e779b0410bdec336adcf71;hp=709b90f29ae61c0cae9e4f055d481592701635d7;hpb=d3c53491245235c69c17850b4d9c1aa768aed44f;p=zanchey%2Fdispense2.git

diff --git a/sql-edition/servers/VendingMachine.py b/sql-edition/servers/VendingMachine.py
index 709b90f..d73eb4b 100644
--- a/sql-edition/servers/VendingMachine.py
+++ b/sql-edition/servers/VendingMachine.py
@@ -3,6 +3,7 @@ import re
 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
@@ -12,13 +13,15 @@ asynchronous_responses = [	'400', '401', # door open/closed
 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
@@ -36,8 +39,13 @@ class VendingMachine:
 	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)
@@ -92,7 +100,8 @@ class VendingMachine:
 		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])))
@@ -144,6 +153,7 @@ class VendingMachine:
 	def display(self, string):
 		if len(string) > 10:
 			string = string[0:10]
+		string = re.sub('(.)\.', lambda match: '.'+match.group(1), string)
 		self.wfh.write('D'+string+'\n')
 		(code, string) = self.get_response()
 		return (code == '300', code, string)
@@ -151,6 +161,7 @@ class VendingMachine:
 	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)
@@ -159,7 +170,7 @@ class VendingMachine:
 				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