twisted.names.dns.DNSProtocol(DNSMixin, protocol.Protocol)class documentation
twisted.names.dnsView Source (View In Hierarchy)
DNS protocol over TCP.
|Method||writeMessage||Send a message holding DNS queries.|
|Method||connectionMade||Connection is made: reset internal state, and notify the controller.|
|Method||connectionLost||Notify the controller that this protocol is no longer connected.|
|Method||dataReceived||Called whenever data is received.|
|Method||query||Send out a message with the given queries.|
Inherited from DNSMixin:
|Method||pickID||Return a unique ID for queries.|
|Method||callLater||Wrapper around reactor.callLater, mainly for test purpose.|
|Method||_query||Send out a message with the given queries.|
|Method||_clearFailed||Clean the Deferred after a timeout.|
Inherited from Protocol:
|Method||logPrefix||Return a prefix matching the class name, to identify log messages related to this protocol instance.|
|Method||makeConnection||Make a connection to a transport and a server.|
Send a message holding DNS queries.
Connection is made: reset internal state, and notify the controller.
Called whenever data is received.
Use this method to translate to a higher-level message. Usually, some callback will be made upon the receipt of each complete protocol message.
|Parameters||data||a string of indeterminate length. Please keep in mind that you will probably need to buffer some data, as partial (or multiple) protocol messages may be received! I recommend that unit tests for protocols call through to this method with differing chunk sizes, down to one byte at a time.|