From 9f514b66d16beb05c95efd0f870c57b4502e7b9e Mon Sep 17 00:00:00 2001
From: elie <elie>
Date: Tue, 17 Apr 2012 20:07:38 +0000
Subject: fix to non-MT-safe class attributes at SNMPv3 MP & SEC modules

---
 pysnmp/proto/secmod/rfc3414/service.py | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

(limited to 'pysnmp/proto/secmod/rfc3414/service.py')

diff --git a/pysnmp/proto/secmod/rfc3414/service.py b/pysnmp/proto/secmod/rfc3414/service.py
index 2b614d13..586f6a3b 100644
--- a/pysnmp/proto/secmod/rfc3414/service.py
+++ b/pysnmp/proto/secmod/rfc3414/service.py
@@ -40,9 +40,9 @@ class SnmpUSMSecurityModel(AbstractSecurityModel):
         aes256.Aes256.serviceID: aes256.Aes256(),
         nopriv.NoPriv.serviceID: nopriv.NoPriv()
         }
-    _securityParametersSpec = UsmSecurityParameters()
     def __init__(self):
         AbstractSecurityModel.__init__(self)
+        self.__securityParametersSpec = UsmSecurityParameters()
         self.__timeline = {}
         self.__timelineExpQueue = {}
         self.__expirationTimer = 0
@@ -277,7 +277,7 @@ class SnmpUSMSecurityModel(AbstractSecurityModel):
                     errorIndication = errind.unsupportedSecurityLevel
                     )
 
-        securityParameters = self._securityParametersSpec
+        securityParameters = self.__securityParametersSpec
 
         scopedPDUData = msg.setComponentByPosition(3).getComponentByPosition(3)
         scopedPDUData.setComponentByPosition(
@@ -487,7 +487,7 @@ class SnmpUSMSecurityModel(AbstractSecurityModel):
         try:
             securityParameters, rest = decoder.decode(
                 securityParameters,
-                asn1Spec=self._securityParametersSpec
+                asn1Spec=self.__securityParametersSpec
                 )
         except PyAsn1Error:
            snmpInASNParseErrs, = snmpEngine.msgAndPduDsp.mibInstrumController.mibBuilder.importSymbols('__SNMPv2-MIB', 'snmpInASNParseErrs')
-- 
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