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         # update self.begin and self.end according to the self.repeated-flags
  31         def processRepeated(self):
  32                 if (self.repeated != 0):
  33                         now = time.time()
  34
  35                         day = []
  36                         flags = self.repeated
  37                         for x in range(0, 7):
  38                                 if (flags & 1 == 1):
  39                                         day.append(0)
  40                                 else:
  41                                         day.append(1)
  42                                 flags = flags >> 1
  43
  44                         while ((day[time.localtime(self.begin).tm_wday] != 0) and (self.end > now)):
  45                                 self.begin += 86400
  46                                 self.end += 86400
  47
  48
  49
  50         def getTime(self):
  51                 if self.state == self.StateWait:
  52                         return self.begin - self.prepare_time
  53                 elif self.state == self.StatePrepare:
  54                         return self.begin
  55                 else:
  56                         return self.end
  57
  58         def __lt__(self, o):
  59                 return self.getTime() < o.getTime()
  60
  61         def activate(self, event):
  62                 print "[timer.py] timer %s got activated (%d)!" % (self.description, event)
  63
  64 class Timer:
  65
  66         # the time between "polls". We do this because
  67         # we want to account for time jumps etc.
  68         # of course if they occur <100s before starting,
  69         # it's not good. thus, you have to repoll when
  70         # you change the time.
  71         #
  72         # this is just in case. We don't want the timer
  73         # hanging. we use this "edge-triggered-polling-scheme"
  74         # anyway, so why don't make it a bit more fool-proof?
  75         MaxWaitTime = 100
  76
  77         def __init__(self):
  78                 self.timer_list = [ ]
  79                 self.processed_timers = [ ]
  80
  81                 self.timer = eTimer()
  82                 self.timer.timeout.get().append(self.calcNextActivation)
  83                 self.lastActivation = time.time()
  84
  85                 self.calcNextActivation()
  86
  87         def addTimerEntry(self, entry, noRecalc=0):
  88                 entry.processRepeated()
  89
  90                 # we either go trough Prepare/Start/End-state if the timer is still running,
  91                 # or skip it when it's alrady past the end.
  92
  93                 if entry.end > time.time():
  94                         bisect.insort(self.timer_list, entry)
  95                         if not noRecalc:
  96                                 self.calcNextActivation()
  97                 else:
  98                         bisect.insort(self.processed_timers, entry)
  99
 100         def setNextActivation(self, when):
 101                 delay = int((when - time.time()) * 1000)
 102                 print "[timer.py] next activation: %d (in %d ms)" % (when, delay)
 103
 104                 self.timer.start(delay, 1)
 105                 self.next = when
 106
 107         def calcNextActivation(self):
 108                 if self.lastActivation > time.time():
 109                         print "[timer.py] timewarp - re-evaluating all processed timers."
 110                         tl = self.processed_timers
 111                         self.processed_timers = [ ]
 112                         for x in tl:
 113                                 self.addTimerEntry(x, noRecalc=1)
 114
 115                 self.processActivation()
 116                 self.lastActivation = time.time()
 117
 118                 min = int(time.time()) + self.MaxWaitTime
 119
 120                 # calculate next activation point
 121                 if len(self.timer_list):
 122                         w = self.timer_list[0].getTime()
 123                         if w < min:
 124                                 min = w
 125
 126                 self.setNextActivation(min)
 127
 128         def timeChanged(self, timer):
 129                 self.timer_list.remove(timer)
 130                 self.addTimerEntry(timer)
 131
 132         def doActivate(self, w):
 133                 w.activate(w.state)
 134                 self.timer_list.remove(w)
 135                 w.state += 1
 136                 if w.state < TimerEntry.StateEnded:
 137                         bisect.insort(self.timer_list, w)
 138                 else:
 139                         bisect.insort(self.processed_timers, w)
 140
 141         def processActivation(self):
 142                 t = int(time.time()) + 1
 143
 144                 # we keep on processing the first entry until it goes into the future.
 145                 while len(self.timer_list) and self.timer_list[0].getTime() < t:
 146                         self.doActivate(self.timer_list[0])