IOFetch Data. More...

Public Member Functions
	IOFetchData (IOFetch::Protocol proto, IOService &service, const IOAddress &address, uint16_t port, OutputBufferPtr &buff, IOFetch::Callback *cb, int wait)
	Constructor. More...

bool	responseOK ()

Public Attributes
IOFetch::Callback *	callback
	Called on I/O Completion. More...

size_t	cumulative
	Cumulative received amount. More...

size_t	expected
	Expected amount of data. More...

OutputBufferPtr	msgbuf
	Wire buffer for question. More...

size_t	offset
	Offset to receive data. More...

isc::log::MessageID	origin
	Origin of last asynchronous I/O. More...

bool	packet
	true if packet was supplied More...

IOFetch::Protocol	protocol
	Protocol being used. More...

isc::dns::qid_t	qid
	The QID set in the query. More...

OutputBufferPtr	received
	Received data put here. More...

boost::scoped_ptr< IOEndpoint >	remote_rcv
	Where the response came from. More...

boost::scoped_ptr< IOEndpoint >	remote_snd
	Where the fetch is sent. More...

boost::scoped_ptr< IOAsioSocket< IOFetch > >	socket
	Socket to use for I/O. More...

uint8_t	staging [IOFetch::STAGING_LENGTH]
	Temporary array for received data. More...

bool	stopped
	Have we stopped running? More...

int	timeout
	Timeout in ms. More...

boost::asio::deadline_timer	timer
	Timer to measure timeouts. More...

Detailed Description

IOFetch Data.

The data for IOFetch is held in a separate struct pointed to by a shared_ptr object. This is because the IOFetch object will be copied often (it is used as a coroutine and passed as callback to many async_*() functions) and we want keep the same data). Organising the data in this way keeps copying to a minimum.

Definition at line 58 of file io_fetch.cc.

Constructor & Destructor Documentation

isc::asiodns::IOFetchData::IOFetchData	(	IOFetch::Protocol	proto,
		IOService &	service,
		const IOAddress &	address,
		uint16_t	port,
		OutputBufferPtr &	buff,
		IOFetch::Callback *	cb,
		int	wait
	)

inline

Constructor.

Just fills in the data members of the IOFetchData structure

Parameters

proto	Either IOFetch::TCP or IOFetch::UDP.
service	I/O Service object to handle the asynchronous operations.
address	IP address of upstream server
port	Port to use for the query
buff	Output buffer into which the response (in wire format) is written (if a response is received).
cb	Callback object containing the callback to be called when we terminate. The caller is responsible for managing this object and deleting it if necessary.
wait	Timeout for the fetch (in ms).

TODO: May need to alter constructor (see comment 4 in Trac ticket #554)

Definition at line 107 of file io_fetch.cc.

Member Function Documentation

bool isc::asiodns::IOFetchData::responseOK ( )

inline

Definition at line 148 of file io_fetch.cc.

References isc::util::readUint16().

Here is the call graph for this function:

Member Data Documentation

IOFetch::Callback* isc::asiodns::IOFetchData::callback

Called on I/O Completion.

Definition at line 70 of file io_fetch.cc.

size_t isc::asiodns::IOFetchData::cumulative

Cumulative received amount.

Definition at line 73 of file io_fetch.cc.

size_t isc::asiodns::IOFetchData::expected

Expected amount of data.

Definition at line 74 of file io_fetch.cc.

OutputBufferPtr isc::asiodns::IOFetchData::msgbuf

Wire buffer for question.

Definition at line 68 of file io_fetch.cc.

size_t isc::asiodns::IOFetchData::offset

Offset to receive data.

Definition at line 75 of file io_fetch.cc.

isc::log::MessageID isc::asiodns::IOFetchData::origin

Origin of last asynchronous I/O.

Definition at line 85 of file io_fetch.cc.

bool isc::asiodns::IOFetchData::packet

true if packet was supplied

Definition at line 78 of file io_fetch.cc.

IOFetch::Protocol isc::asiodns::IOFetchData::protocol

Protocol being used.

Definition at line 72 of file io_fetch.cc.

isc::dns::qid_t isc::asiodns::IOFetchData::qid

The QID set in the query.

Definition at line 88 of file io_fetch.cc.

OutputBufferPtr isc::asiodns::IOFetchData::received

Received data put here.

Definition at line 69 of file io_fetch.cc.

boost::scoped_ptr<IOEndpoint> isc::asiodns::IOFetchData::remote_rcv

Where the response came from.

Definition at line 67 of file io_fetch.cc.

boost::scoped_ptr<IOEndpoint> isc::asiodns::IOFetchData::remote_snd

Where the fetch is sent.

Definition at line 66 of file io_fetch.cc.

boost::scoped_ptr<IOAsioSocket<IOFetch> > isc::asiodns::IOFetchData::socket

Socket to use for I/O.

Definition at line 64 of file io_fetch.cc.

uint8_t isc::asiodns::IOFetchData::staging[IOFetch::STAGING_LENGTH]

Temporary array for received data.

Definition at line 86 of file io_fetch.cc.

bool isc::asiodns::IOFetchData::stopped

Have we stopped running?

Definition at line 76 of file io_fetch.cc.

int isc::asiodns::IOFetchData::timeout

Timeout in ms.

Definition at line 77 of file io_fetch.cc.

boost::asio::deadline_timer isc::asiodns::IOFetchData::timer

Timer to measure timeouts.

Definition at line 71 of file io_fetch.cc.

The documentation for this struct was generated from the following file:

io_fetch.cc

Public Member Functions

Public Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation