src/logging/EventLog.py

   1 '''
   2 Created on 21 aout 2009
   3
   4 @author: Samuel Benveniste
   5 '''
   6 import time
   7
   8 class EventLog:
   9     '''
  10     classdocs
  11     '''
  12
  13     def __init__(self,eventGroups = [], times = []):
  14         '''
  15         Constructor
  16         '''
  17         self.eventGroups = eventGroups
  18         self.times = times
  19         self.rate = 1
  20         self.yielder = self.eventGroupYielder()
  21         self.yieldPointer = 0
  22
  23         self._timeCounter = 0
  24
  25     def __getstate__(self):
  26         d = []
  27         d.append(self.eventGroups)
  28         d.append(self.times)
  29         return d
  30
  31     def __setstate__(self,d):
  32         self.eventGroups = d[0]
  33         self.times = d[1]
  34         self.yielder = self.eventGroupYielder()
  35
  36         self._timeCounter = 0
  37
  38     def appendEventGroup(self, eventGroup):
  39         t = time.clock()*1000
  40         self.times.append(t)
  41         self.eventGroups.append(eventGroup)
  42
  43     def update(self,timePassed):
  44         self._timeCounter += timePassed
  45
  46     def setReplayRate(self,rate):
  47         self.rate = rate
  48         self.yielder = self.eventGroupYielder()
  49
  50     def getPickledEvents(self):
  51         return(self.yielder.next())
  52
  53     def getCurrentTime(self):
  54         return(self.times[self.yieldPointer])
  55
  56     def eventGroupYielder(self):
  57         '''
  58         Will return the next event to post if enough time has passed and [] otherwise
  59         '''
  60         i = 0
  61         while i in range(len(self.eventGroups)):
  62             print "rate is " + str(self.rate)
  63             if self._timeCounter*self.rate>self.times[i]:
  64                 print str(self._timeCounter*self.rate)+" > "+ str(self.times[i])
  65                 self.yieldPointer = i
  66                 yield self.eventGroups[i]
  67                 i += 1
  68             else:
  69                 yield []