'''
import logging
from LoopStatus import LoopStatus
logging.basicConfig(
level=logging.INFO,
format='%(asctime)s %(levelname)-8s L%(lineno)d %(message)s',
datefmt='%H:%M:%S',
)
status = LoopStatus()
...
if status():
logging.info('%dnth occurence',status.Value)
'''
import signal
class LoopStatus(object):
def __init__(self,base=2,seconds=5*60,target=1):
self.i = 0
self.base = base
self.target = target
self.nonzero = True
self.timesup = False
self.interval = seconds
if 0 < seconds:
self.reset_timer()
signal.signal(signal.SIGALRM,self.trap_alarm)
def trap_alarm(self,*args,**kwargs):
self.timesup = True
def reset_timer(self,interval=None):
if interval is None:
interval = self.interval
if 0 < interval:
self.timesup = False
signal.alarm(interval)
def __call__(self):
self.i += 1
self.nonzero = self.timesup or (self.target <= self.i)
if self:
self.target *= self.base
self.reset_timer()
return self.nonzero
@property
def Value(self):
return self.i
def __nonzero__(self):
return self.nonzero
def __str__(self):
return str(self.Value)
