1 files changed, 94 insertions, 0 deletions
diff --git a/timer.py b/timer.py
new file mode 100644
index 00000000..294102b7
--- /dev/null
+++ b/timer.py
@@ -0,0 +1,94 @@
+import bisect
+from time import *
+from enigma import *
+
+class TimerEntry:
+	EventPrepare = 0
+	EventStart   = 1
+	EventEnd     = 2
+	EventAbort   = 3
+	
+	StateWait    = 0
+	StatePrepare = 1
+	StateRunning = 2
+	StateEnded   = 3
+	
+	def __init__(self, begin, end):
+		self.Begin = begin
+		self.Prepare = 10
+		self.End = end
+		self.State = 0
+	
+	def getTime(self):
+		if self.State == 0:
+			return self.Begin - self.Prepare
+		elif self.State == 1:
+			return self.Begin
+		else:
+			return self.End 
+	
+	def __lt__(self, o):
+		return self.getTime() < o.getTime()
+	
+	def activate(self, event):
+		print "timer %s got activated (%d)!" % (self.Description, event)
+
+class Timer:
+
+	MaxWaitTime = 100
+
+	def __init__(self):
+		self.TimerList = [ ]
+		self.ProcessedTimers = [ ]
+		
+		self.Timer = eTimer()
+		self.Timer.timeout.get().append(self.calcNextActivation)
+		
+		self.calcNextActivation()
+	
+	def addTimerEntry(self, entry):
+		bisect.insort(self.TimerList, entry)
+		self.calcNextActivation()
+	
+	def setNextActivation(self, when):
+		delay = int((when - time()) * 1000)
+		print "next activation: %d (in %d seconds)" % (when, delay)
+		
+		self.Timer.start(delay, 1)
+		self.next = when
+
+	def calcNextActivation(self):
+		self.processActivation()
+	
+		min = int(time()) + self.MaxWaitTime
+		
+		# calculate next activation point
+		if len(self.TimerList):
+			w = self.TimerList[0].getTime()
+			if w < min:
+				min = w
+		
+		self.setNextActivation(min)
+	
+	def doActivate(self, w):
+		w.activate(w.State)
+		self.TimerList.remove(w)
+		w.State += 1
+		if w.State < TimerEntry.StateEnded:
+			bisect.insort(self.TimerList, w)
+		else:
+			bisect.insort(self.ProcessedTimers, w)
+	
+	def processActivation(self):
+		t = int(time()) + 1
+		
+		# we keep on processing the first entry until it goes into the future.
+		while len(self.TimerList) and self.TimerList[0].getTime() < t:
+			self.doActivate(self.TimerList[0])
+
+#t = Timer()
+#base = time() + 5
+#t.addTimerEntry(TimerEntry(base+10, base+20, None, None, "test #1: 10 - 20"))
+#t.addTimerEntry(TimerEntry(base+10, base+30, None, None, "test #2: 10 - 30"))
+#t.addTimerEntry(TimerEntry(base+15, base+20, None, None, "test #3: 15 - 20"))
+#t.addTimerEntry(TimerEntry(base+20, base+35, None, None, "test #4: 20 - 35"))