X-Git-Url: https://git.ucc.asn.au/?p=uccvend-vendserver.git;a=blobdiff_plain;f=sql-edition%2Fservers%2FVendingMachine.py;h=aca860e11152fda781953aabacb253bf2b1d1397;hp=d73eb4beb5234ba96c27cee0fafd22cd96156a95;hb=4b4e4c8deae85f1bb0c49c51fea49a3e33127b44;hpb=912fe3f190d0fbffaa6bde6a499ab60aa0db89e4

diff --git a/sql-edition/servers/VendingMachine.py b/sql-edition/servers/VendingMachine.py
index d73eb4b..aca860e 100644
--- a/sql-edition/servers/VendingMachine.py
+++ b/sql-edition/servers/VendingMachine.py
@@ -4,6 +4,7 @@ from CRC import do_crc
 from select import select
 import socket, logging
 from time import time, sleep
+from MIFAREClient import MIFAREClient
 
 asynchronous_responses = [	'400', '401', # door open/closed
 				'610',        # switches changed
@@ -14,6 +15,7 @@ DOOR = 1
 SWITCH = 2
 KEY = 3
 TICK = 4
+MIFARE = 5
 
 class VendingException(Exception): pass
 
@@ -35,6 +37,7 @@ class VendingMachine:
 		while code != '000':
 			code = self.get_response()[0]
 		self.get_switches()
+		self.mifare = MIFAREClient()
 
 	def await_prompt(self):
 		self.wfh.flush()
@@ -161,15 +164,31 @@ 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)
+
+		# Never have no timeout...
+		if timeout == None: timeout = 60*60*24*365
+
+		# Make sure we go through the loop at least once.
+		if timeout <= 0: timeout = 0.01
+
+		while timeout > 0:
+			this_timeout = min(timeout, 0.2)
+			timeout -= this_timeout
+
+			(r, _, _) = select([self.rfh], [], [], this_timeout)
 			if r:
 				self.get_response(async = True)
 				timeout = 0
-			else:
-				break
+
+			try:
+				mifare_uid = self.mifare.get_card_uid()
+			except ValueError:
+				mifare_uid = None
+			if mifare_uid != None:
+				logging.info('Got MIFARE uid %s'%(str(mifare_uid)))
+				self.events.append((MIFARE, mifare_uid))
+				timeout = 0
+
 		if len(self.events) == 0: return (TICK, time())
 		ret = self.events[0]
 		del self.events[0]