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Merge pull request #612 from balloob/dt_snmp_fix

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Fix memory issue in SNMP device tracker
This commit is contained in:
Tom Duijf 2015-11-11 23:30:43 +01:00
commit 6da88108fe
1 changed files with 8 additions and 10 deletions
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18
homeassistant/components/device_tracker/snmp.py
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@ -45,9 +45,12 @@ class SnmpScanner(object):
This class queries any SNMP capable Acces Point for connected devices. This class queries any SNMP capable Acces Point for connected devices.
""" """
def __init__(self, config): def __init__(self, config):
self.host = config[CONF_HOST] from pysnmp.entity.rfc3413.oneliner import cmdgen
self.community = config[CONF_COMMUNITY] self.snmp = cmdgen.CommandGenerator()
self.baseoid = config[CONF_BASEOID]
self.host = cmdgen.UdpTransportTarget((config[CONF_HOST], 161))
self.community = cmdgen.CommunityData(config[CONF_COMMUNITY])
self.baseoid = cmdgen.MibVariable(config[CONF_BASEOID])
self.lock = threading.Lock() self.lock = threading.Lock()
@ -91,16 +94,11 @@ class SnmpScanner(object):
def get_snmp_data(self): def get_snmp_data(self):
""" Fetch mac addresses from WAP via SNMP. """ """ Fetch mac addresses from WAP via SNMP. """
from pysnmp.entity.rfc3413.oneliner import cmdgen
devices = [] devices = []
snmp = cmdgen.CommandGenerator() errindication, errstatus, errindex, restable = self.snmp.nextCmd(
errindication, errstatus, errindex, restable = snmp.nextCmd( self.community, self.host, self.baseoid)
cmdgen.CommunityData(self.community),
cmdgen.UdpTransportTarget((self.host, 161)),
cmdgen.MibVariable(self.baseoid)
)
if errindication: if errindication:
_LOGGER.error("SNMPLIB error: %s", errindication) _LOGGER.error("SNMPLIB error: %s", errindication)