py.lib

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/Alarm.py	Fri Jul 24 14:40:37 2020 +0300
     1.3 @@ -0,0 +1,25 @@
     1.4 +#!/usr/bin/python
     1.5 +# -*- coding: utf-8 -*-
     1.6 +
     1.7 +from signal import SIGALRM, alarm, signal
     1.8 +
     1.9 +class AlarmTimeout(Exception): pass
    1.10 +
    1.11 +def _handler(sig, frame):
    1.12 +	raise AlarmTimeout('Operation timeout')
    1.13 +
    1.14 +class MkAlarm(object):
    1.15 +	def __init__(self, timeout):
    1.16 +		signal(SIGALRM, _handler)
    1.17 +		alarm(timeout)
    1.18 +		
    1.19 +	def __enter__(self):
    1.20 +		pass
    1.21 +		
    1.22 +	def __exit__(self, eType, eObj, tb):
    1.23 +		if eObj == None:
    1.24 +			alarm(0)
    1.25 +	
    1.26 +	def __del__(self):
    1.27 +		alarm(0)
    1.28 +			
    1.29 \ No newline at end of file