twisted.names.dns.DNSMixin

class documentation

class DNSMixin: (source)

Known subclasses: twisted.names.dns.DNSDatagramProtocol, twisted.names.dns.DNSProtocol

Constructor: DNSMixin(controller, reactor)

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DNS protocol mixin shared by UDP and TCP implementations.

Method __init__ Undocumented
Method callLater Wrapper around reactor.callLater, mainly for test purpose.
Method pickID Return a unique ID for queries.
Class Variable liveMessages Undocumented
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 __init__(self, controller, reactor=None): (source)

Undocumented

def callLater(self, period, func, *args): (source)

Wrapper around reactor.callLater, mainly for test purpose.

def pickID(self): (source)

Return a unique ID for queries.

liveMessages = (source)
overridden in twisted.names.dns.DNSDatagramProtocol, twisted.names.dns.DNSProtocol

Undocumented

controller = (source)

Undocumented

id = (source)

Undocumented

def _clearFailed(self, deferred, id): (source)

Clean the Deferred after a timeout.

def _query(self, queries, timeout, id, writeMessage): (source)

Send out a message with the given queries.

Parameters
queries:list of Query instancesThe queries to transmit
timeout:int or floatHow long to wait before giving up
id:intUnique key for this request
writeMessage:callableOne-parameter callback which writes the message
Returns
Deferreda Deferred which will be fired with the result of the query, or errbacked with any errors that could happen (exceptions during writing of the query, timeout errors, ...).
_reactor = (source)

A IReactorTime and IReactorUDP provider which will be used to issue DNS queries and manage request timeouts.