DNS protocol over UDP.

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

Inherited from DNSMixin:

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

Inherited from DatagramProtocol:

Instance Variable transport The transport with which this protocol is associated, if it is associated with one. (type: None or IUDPTransport provider)
Method logPrefix Return a prefix matching the class name, to identify log messages related to this protocol instance.
Method connectionRefused Called due to error from write in connected mode.

Inherited from AbstractDatagramProtocol (via 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.
def stopProtocol(self): (source)

Stop protocol: reset state variables.

def startProtocol(self): (source)

Upon start, reset internal state.

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

Send a message holding DNS queries.

def startListening(self): (source)
Undocumented
def datagramReceived(self, data, addr): (source)

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

def removeResend(self, id): (source)

Mark message ID as no longer having duplication suppression.

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

Send out a message with the given queries.

ParametersaddressThe address to which to send the query (type: tuple of str and int)
queriesThe queries to transmit (type: list of Query instances)
Returns (type: Deferred)
API Documentation for Twisted, generated by pydoctor at 2018-07-14 04:53:34.