- Timer: implemented stop()

- Timer: added iteration count

git-svn-id: http://moon:8086/svn/projects/HendiControl@254 fda53097-d464-4ada-af97-ba876c37ca34

Control/brewpi/timer.py

@@ -2,23 +2,26 @@ import time
 import abc
 
 class Timer(object):
-	def __init__(self, name='Timer', listener=None, mode='periodic'):
+	def __init__(self, name='Timer', listener=None):
 		self.name = name
 		self.listener = listener
 		self.isActive = False
 		self.mode = 'periodic'
 		self.interval = 0
 		self.elapseTime = 0
+		self.count = 0
+		self.cancel = False
 
-	def start(self, interval):
+	def start(self, interval, mode='periodic'):
 		now = time.time()
 		self.interval = interval
+		self.mode = mode
 		self.elapseTime = now + interval
 		self.isActive = self.elapseTime > now
 		pass
 
 	def stop(self):
-		pass
+		self.cancel = True
 
 	def __str__(self):
 		return self.name
@@ -44,12 +47,17 @@ class TimerManager(object):
 			now = time.time()
 			if timer.isActive:
 				if timer.elapseTime <= now:
-					if timer.listener:
+					if timer.cancel:
+						timer.isActive = False
+						timer.count = 0
+					elif timer.listener:
 						if 'periodic' in timer.mode:
 							timer.start(timer.interval)
 						timer.listener.onTimer(timer)
+						timer.count += 1
 
 	def getMinTimeout(self):
+		minTimeout = None
 		timeouts = []
 		for timer in self.timers:
 			now = time.time()
@@ -57,8 +65,9 @@ class TimerManager(object):
 				timeout = max(0, timer.elapseTime-now)
 				timeouts.append(timeout)
 
+		if len(timeouts) > 0:
+			minTimeout = min(timeouts)
 
-		minTimeout = min(timeouts)
 		return minTimeout
 
 if __name__ == '__main__':
@@ -78,11 +87,15 @@ if __name__ == '__main__':
 			pass
 
 		def onTimer(self, timer):
-			print (timer)
+			print ("{}, Count: {}".format(timer, timer.count))
+			if timer.count == 30:
+				timer.stop()
 
 		def run(self):
 			while(True):
 				wait = self.timerMgr.getMinTimeout()
+				if wait is None:
+					break
 				time.sleep(wait)
 
 				self.timerMgr.process()