code.vuplus.com Git - vuplus_dvbapp/blob - timer.py

   1 import bisect
   2 import time
   3 from enigma import *
   4
   5 class TimerEntry:
   6         EventPrepare = 0
   7         EventStart   = 1
   8         EventEnd     = 2
   9         EventAbort   = 3
  10
  11         StateWait    = 0
  12         StatePrepare = 1
  13         StateRunning = 2
  14         StateEnded   = 3
  15
  16         def __init__(self, begin, end):
  17                 self.begin = begin
  18                 self.prepare_time = 10
  19                 self.end = end
  20                 self.state = 0
  21                 self.resetRepeated()
  22
  23         def resetRepeated(self):
  24                 self.repeated = int(0)
  25
  26         def setRepeated(self, day):
  27                 self.repeated |= (2 ** day)
  28                 print "Repeated: " + str(self.repeated)
  29
  30         def getTime(self):
  31                 if self.state == self.StateWait:
  32                         return self.begin - self.prepare_time
  33                 elif self.state == self.StatePrepare:
  34                         return self.begin
  35                 else:
  36                         return self.end
  37
  38         def __lt__(self, o):
  39                 return self.getTime() < o.getTime()
  40
  41         def activate(self, event):
  42                 print "[timer.py] timer %s got activated (%d)!" % (self.description, event)
  43
  44 class Timer:
  45
  46         # the time between "polls". We do this because
  47         # we want to account for time jumps etc.
  48         # of course if they occur <100s before starting,
  49         # it's not good. thus, you have to repoll when
  50         # you change the time.
  51         #
  52         # this is just in case. We don't want the timer
  53         # hanging. we use this "edge-triggered-polling-scheme"
  54         # anyway, so why don't make it a bit more fool-proof?
  55         MaxWaitTime = 100
  56
  57         def __init__(self):
  58                 self.timer_list = [ ]
  59                 self.processed_timers = [ ]
  60
  61                 self.timer = eTimer()
  62                 self.timer.timeout.get().append(self.calcNextActivation)
  63                 self.lastActivation = time.time()
  64
  65                 self.calcNextActivation()
  66
  67         def addTimerEntry(self, entry, noRecalc=0):
  68                 # we either go trough Prepare/Start/End-state if the timer is still running,
  69                 # or skip it when it's alrady past the end.
  70                 if entry.end > time.time():
  71                         bisect.insort(self.timer_list, entry)
  72                         if not noRecalc:
  73                                 self.calcNextActivation()
  74                 else:
  75                         bisect.insort(self.processed_timers, entry)
  76
  77         def setNextActivation(self, when):
  78                 delay = int((when - time.time()) * 1000)
  79                 print "[timer.py] next activation: %d (in %d ms)" % (when, delay)
  80
  81                 self.timer.start(delay, 1)
  82                 self.next = when
  83
  84         def calcNextActivation(self):
  85                 if self.lastActivation > time.time():
  86                         print "[timer.py] timewarp - re-evaluating all processed timers."
  87                         tl = self.processed_timers
  88                         self.processed_timers = [ ]
  89                         for x in tl:
  90                                 self.addTimerEntry(x, noRecalc=1)
  91
  92                 self.processActivation()
  93                 self.lastActivation = time.time()
  94
  95                 min = int(time.time()) + self.MaxWaitTime
  96
  97                 # calculate next activation point
  98                 if len(self.timer_list):
  99                         w = self.timer_list[0].getTime()
 100                         if w < min:
 101                                 min = w
 102
 103                 self.setNextActivation(min)
 104
 105         def timeChanged(self, timer):
 106                 self.timer_list.remove(timer)
 107                 self.addTimerEntry(timer)
 108
 109         def doActivate(self, w):
 110                 w.activate(w.state)
 111                 self.timer_list.remove(w)
 112                 w.state += 1
 113                 if w.state < TimerEntry.StateEnded:
 114                         bisect.insort(self.timer_list, w)
 115                 else:
 116                         bisect.insort(self.processed_timers, w)
 117
 118         def processActivation(self):
 119                 t = int(time.time()) + 1
 120
 121                 # we keep on processing the first entry until it goes into the future.
 122                 while len(self.timer_list) and self.timer_list[0].getTime() < t:
 123                         self.doActivate(self.timer_list[0])