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                 print "Processing repeated"
  33                 if (self.repeated != 0):
  34                         now = int(time.time())
  35                         print "Now: " + str(now)
  36
  37                         day = []
  38                         flags = self.repeated
  39                         for x in range(0, 7):
  40                                 if (flags & 1 == 1):
  41                                         day.append(0)
  42                                         print "Day " + str(x)
  43                                 else:
  44                                         day.append(1)
  45                                 flags = flags >> 1
  46
  47                         print time.localtime(self.begin).tm_wday
  48                         print day
  49                         print str(now) + " " + str(self.end) + " " + str(self.begin)
  50                         while ((day[time.localtime(self.begin).tm_wday] != 0) and (self.end < now)):
  51                                 print str(now) + " " + str(self.end) + " " + str(self.begin)
  52                                 self.begin += 86400
  53                                 self.end += 86400
  54
  55
  56
  57         def getTime(self):
  58                 if self.state == self.StateWait:
  59                         return self.begin - self.prepare_time
  60                 elif self.state == self.StatePrepare:
  61                         return self.begin
  62                 else:
  63                         return self.end
  64
  65         def __lt__(self, o):
  66                 return self.getTime() < o.getTime()
  67
  68         def activate(self, event):
  69                 print "[timer.py] timer %s got activated (%d)!" % (self.description, event)
  70
  71 class Timer:
  72
  73         # the time between "polls". We do this because
  74         # we want to account for time jumps etc.
  75         # of course if they occur <100s before starting,
  76         # it's not good. thus, you have to repoll when
  77         # you change the time.
  78         #
  79         # this is just in case. We don't want the timer
  80         # hanging. we use this "edge-triggered-polling-scheme"
  81         # anyway, so why don't make it a bit more fool-proof?
  82         MaxWaitTime = 100
  83
  84         def __init__(self):
  85                 self.timer_list = [ ]
  86                 self.processed_timers = [ ]
  87
  88                 self.timer = eTimer()
  89                 self.timer.timeout.get().append(self.calcNextActivation)
  90                 self.lastActivation = time.time()
  91
  92                 self.calcNextActivation()
  93
  94         def addTimerEntry(self, entry, noRecalc=0):
  95                 entry.processRepeated()
  96
  97                 # we either go trough Prepare/Start/End-state if the timer is still running,
  98                 # or skip it when it's alrady past the end.
  99
 100                 if entry.end > time.time():
 101                         bisect.insort(self.timer_list, entry)
 102                         if not noRecalc:
 103                                 self.calcNextActivation()
 104                 else:
 105                         bisect.insort(self.processed_timers, entry)
 106
 107         def setNextActivation(self, when):
 108                 delay = int((when - time.time()) * 1000)
 109                 print "[timer.py] next activation: %d (in %d ms)" % (when, delay)
 110
 111                 self.timer.start(delay, 1)
 112                 self.next = when
 113
 114         def calcNextActivation(self):
 115                 if self.lastActivation > time.time():
 116                         print "[timer.py] timewarp - re-evaluating all processed timers."
 117                         tl = self.processed_timers
 118                         self.processed_timers = [ ]
 119                         for x in tl:
 120                                 self.addTimerEntry(x, noRecalc=1)
 121
 122                 self.processActivation()
 123                 self.lastActivation = time.time()
 124
 125                 min = int(time.time()) + self.MaxWaitTime
 126
 127                 # calculate next activation point
 128                 if len(self.timer_list):
 129                         w = self.timer_list[0].getTime()
 130                         if w < min:
 131                                 min = w
 132
 133                 self.setNextActivation(min)
 134
 135         def timeChanged(self, timer):
 136                 self.timer_list.remove(timer)
 137                 self.addTimerEntry(timer)
 138
 139         def doActivate(self, w):
 140                 w.activate(w.state)
 141                 self.timer_list.remove(w)
 142                 w.state += 1
 143                 if w.state < TimerEntry.StateEnded:
 144                         bisect.insort(self.timer_list, w)
 145                 else:
 146                         bisect.insort(self.processed_timers, w)
 147
 148         def processActivation(self):
 149                 t = int(time.time()) + 1
 150
 151                 # we keep on processing the first entry until it goes into the future.
 152                 while len(self.timer_list) and self.timer_list[0].getTime() < t:
 153                         self.doActivate(self.timer_list[0])