52 lines
1.7 KiB
Python
52 lines
1.7 KiB
Python
#
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# This file is part of pysnmp software.
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#
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# Copyright (c) 2005-2017, Ilya Etingof <etingof@gmail.com>
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# License: http://pysnmp.sf.net/license.html
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#
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from time import time
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from sys import exc_info
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from traceback import format_exception
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from asyncore import socket_map
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from asyncore import loop
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from pysnmp.carrier.base import AbstractTransportDispatcher
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from pysnmp.error import PySnmpError
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class AsyncoreDispatcher(AbstractTransportDispatcher):
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def __init__(self):
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self.__sockMap = {} # use own map for MT safety
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self.timeout = 0.5
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AbstractTransportDispatcher.__init__(self)
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def getSocketMap(self):
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return self.__sockMap
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def setSocketMap(self, sockMap=socket_map):
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self.__sockMap = sockMap
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def registerTransport(self, tDomain, t):
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AbstractTransportDispatcher.registerTransport(self, tDomain, t)
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t.registerSocket(self.__sockMap)
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def unregisterTransport(self, tDomain):
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self.getTransport(tDomain).unregisterSocket(self.__sockMap)
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AbstractTransportDispatcher.unregisterTransport(self, tDomain)
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def transportsAreWorking(self):
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for transport in self.__sockMap.values():
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if transport.writable():
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return 1
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return 0
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def runDispatcher(self, timeout=0.0):
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while self.jobsArePending() or self.transportsAreWorking():
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try:
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loop(timeout and timeout or self.timeout,
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use_poll=True, map=self.__sockMap, count=1)
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except KeyboardInterrupt:
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raise
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except:
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raise PySnmpError('poll error: %s' % ';'.join(format_exception(*exc_info())))
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self.handleTimerTick(time())
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