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import bisect
import time
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_time = 10
self.end = end
self.state = 0
def getTime(self):
if self.state == self.StateWait:
return self.begin - self.prepare_time
elif self.state == self.StatePrepare:
return self.begin
else:
return self.end
def __lt__(self, o):
return self.getTime() < o.getTime()
def activate(self, event):
print "[timer.py] timer %s got activated (%d)!" % (self.description, event)
class Timer:
# the time between "polls". We do this because
# we want to account for time jumps etc.
# of course if they occur <100s before starting,
# it's not good. thus, you have to repoll when
# you change the time.
#
# this is just in case. We don't want the timer
# hanging. we use this "edge-triggered-polling-scheme"
# anyway, so why don't make it a bit more fool-proof?
MaxWaitTime = 100
def __init__(self):
self.timer_list = [ ]
self.processed_timers = [ ]
self.timer = eTimer()
self.timer.timeout.get().append(self.calcNextActivation)
self.lastActivation = time.time()
self.calcNextActivation()
def addTimerEntry(self, entry, noRecalc=0):
# we either go trough Prepare/Start/End-state if the timer is still running,
# or skip it when it's alrady past the end.
if entry.end > time.time():
bisect.insort(self.timer_list, entry)
if not noRecalc:
self.calcNextActivation()
else:
bisect.insort(self.processed_timers, entry)
def setNextActivation(self, when):
delay = int((when - time.time()) * 1000)
print "[timer.py] next activation: %d (in %d ms)" % (when, delay)
self.timer.start(delay, 1)
self.next = when
def calcNextActivation(self):
if self.lastActivation > time.time():
print "[timer.py] timewarp - re-evaluating all processed timers."
tl = self.processed_timers
self.processed_timers = [ ]
for x in tl:
self.addTimerEntry(x, noRecalc=1)
self.processActivation()
self.lastActivation = time.time()
min = int(time.time()) + self.MaxWaitTime
# calculate next activation point
if len(self.timer_list):
w = self.timer_list[0].getTime()
if w < min:
min = w
self.setNextActivation(min)
def timeChanged(self, timer):
self.timer_list.remove(timer)
self.addTimerEntry(timer)
def doActivate(self, w):
w.activate(w.state)
self.timer_list.remove(w)
w.state += 1
if w.state < TimerEntry.StateEnded:
bisect.insort(self.timer_list, w)
else:
bisect.insort(self.processed_timers, w)
def processActivation(self):
t = int(time.time()) + 1
# we keep on processing the first entry until it goes into the future.
while len(self.timer_list) and self.timer_list[0].getTime() < t:
self.doActivate(self.timer_list[0])
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