twisted.names.dns.DNSDatagramProtocol

class documentation

class DNSDatagramProtocol(DNSMixin, protocol.DatagramProtocol): (source)

Constructor: DNSDatagramProtocol(controller, reactor)

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DNS protocol over UDP.

Method datagramReceived Read a datagram, extract the message in it and trigger the associated Deferred.
Method query Send out a message with the given queries.
Method removeResend Mark message ID as no longer having duplication suppression.
Method startListening Undocumented
Method startProtocol Upon start, reset internal state.
Method stopProtocol Stop protocol: reset state variables.
Method writeMessage Send a message holding DNS queries.
Instance Variable liveMessages Undocumented
Instance Variable resends Undocumented
Instance Variable transport Undocumented

Inherited from DNSMixin:

Method __init__ Undocumented
Method callLater Wrapper around reactor.callLater, mainly for test purpose.
Method pickID Return a unique ID for queries.
Instance Variable controller Undocumented
Instance Variable id Undocumented
Method _clearFailed Clean the Deferred after a timeout.
Method _query Send out a message with the given queries.
Instance Variable _reactor A IReactorTime and IReactorUDP provider which will be used to issue DNS queries and manage request timeouts.

Inherited from DatagramProtocol (via DNSMixin):

Method connectionRefused Called due to error from write in connected mode.
Method logPrefix Return a prefix matching the class name, to identify log messages related to this protocol instance.

Inherited from AbstractDatagramProtocol (via DNSMixin, DatagramProtocol):

Method __getstate__ Undocumented
Method doStart Make sure startProtocol is called.
Method doStop Make sure stopProtocol is called.
Method makeConnection Make a connection to a transport and a server.
Class Variable noisy Undocumented
Instance Variable numPorts Undocumented
def datagramReceived(self, data, addr): (source)
overrides twisted.internet.protocol.AbstractDatagramProtocol.datagramReceived

Read a datagram, extract the message in it and trigger the associated Deferred.

def query(self, address, queries, timeout=10, id=None): (source)

Send out a message with the given queries.

Parameters
address:tuple of str and intThe address to which to send the query
queries:list of Query instancesThe queries to transmit
timeoutUndocumented
idUndocumented
Returns
DeferredUndocumented
def removeResend(self, id): (source)

Mark message ID as no longer having duplication suppression.

def startListening(self): (source)

Undocumented

def startProtocol(self): (source)
overrides twisted.internet.protocol.AbstractDatagramProtocol.startProtocol

Upon start, reset internal state.

def stopProtocol(self): (source)
overrides twisted.internet.protocol.AbstractDatagramProtocol.stopProtocol

Stop protocol: reset state variables.

def writeMessage(self, message, address): (source)

Send a message holding DNS queries.

Parameters
message:MessageUndocumented
addressUndocumented
liveMessages: dict = (source)
overrides twisted.names.dns.DNSMixin.liveMessages

Undocumented

resends: dict = (source)

Undocumented

transport = (source)
overrides twisted.internet.protocol.DatagramProtocol.transport

Undocumented