twisted.names.dns.DNSDatagramProtocol

class documentation

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

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.

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

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 `int`	The address to which to send the query
queries:`list` of `Query` instances	The queries to transmit
timeout	Undocumented
id	Undocumented
Returns
`Deferred`	Undocumented

def removeResend(self, id): (source)

Mark message ID as no longer having duplication suppression.

def startListening(self): (source)

Undocumented

def startProtocol(self): (source)

Upon start, reset internal state.

def stopProtocol(self): (source)

Stop protocol: reset state variables.

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

Send a message holding DNS queries.

liveMessages: dict = (source)

overrides twisted.names.dns.DNSMixin.liveMessages

Undocumented

resends: dict = (source)

Undocumented

transport = (source)

Undocumented