| Kea 3.0.2-git

isc::lease_query::LeaseQueryConnection Class Reference

Derivation of TcpConnection used for Bulk LeaseQuery. More...

`#include <lease_query_connection.h>`

Inheritance diagram for isc::lease_query::LeaseQueryConnection:
[legend]

## Public Member Functions
| LeaseQueryConnection (const asiolink::IOServicePtr &io_service, const tcp::TcpConnectionAcceptorPtr &acceptor, const asiolink::TlsContextPtr &tls_context, tcp::TcpConnectionPool &connection_pool, const tcp::TcpConnectionAcceptorCallback &acceptor_callback, const tcp::TcpConnectionFilterCallback &filter_callback, const long idle_timeout, const uint16_t family, const size_t max_concurrent_queries, const size_t read_max=32768)
| Constructor.
virtual | ~LeaseQueryConnection ()
| Destructor.
void | addPendingQuery (BlqQueryPtr query)
| Queues a query to the end of the queue of waiting queries.
void | addRunningQuery (BulkLeaseQueryPtr query)
| Adds a query to the end of the list of in-progress queries.
bool | canSend () const
| Can send (aka stopped) flag.
virtual void | close ()
| Closes the socket.
virtual tcp::TcpRequestPtr | createRequest ()
| Creates a new empty request ready to receive data.
bool | findQuery (const Xid &xid) const
| Find queries based on Xid in the query list and queue.
size_t | getNumResponses () const
| Returns the number of responses in the response queue.
size_t | getNumRunningQueries () const
| Returns the number of queries in the in-progress list.
std::string | getRemoteEndpointAddressAsText () const
| Export getRemoteEndpointAddressAsText.
asiolink::IOAddress | getRequesterAddress () const
| Returns the requester's ip address.
bool | isStopping () const
| Stopping flag.
tcp::TcpResponsePtr | makeTcpResponse (BlqResponsePtr blq_response) const
| Constructs a ready to send TcpResponse from and BlqResponse.
bool | noPendingQuery () const
| Returns True if the queue of waiting queries is empty.
BlqQueryPtr | popPendingQuery ()
| Pops a query from the queue of waiting queries.
virtual void | post (const BlqPostCbArg &callback)
| Posts an event callback to the connection's IOService.
virtual void | processNextQuery ()
| Process next waiting query.
virtual bool | pushToSend (BlqResponsePtr response)
| Adds a response to the connection's outbound queue of responses.
virtual void | queryComplete (const Xid &xid)
| Finishes up when a query has been completed (e.g.
void | removeRunningQuery (const Xid &xid)
| Removes a query from the in-progress query list.
virtual void | requestReceived (tcp::TcpRequestPtr request)
| Processes a completely received request.
virtual bool | responseSent (tcp::TcpResponsePtr response)
| Processes a response once it has been sent.
virtual void | sendNextResponse ()
| Sends the next response in the response queue.
virtual void | shutdown ()
| Shutdown the socket.
void | startQuery (BlqQueryPtr query_msg)
| Start query processing.
virtual void | stopThisConnection ()
| Stops current connection.
BlqQueryPtr | unpackQuery4 (const uint8_t *buffer, size_t length) const
| Unpacks a DHCPv4 packet from a data buffer.
BlqQueryPtr | unpackQuery6 (const uint8_t *buffer, size_t length) const
| Unpacks a DHCPv6 packet from a data buffer.
Public Member Functions inherited from isc::tcp::TcpConnection
| TcpConnection (const asiolink::IOServicePtr &io_service, const TcpConnectionAcceptorPtr &acceptor, const asiolink::TlsContextPtr &tls_context, TcpConnectionPool &connection_pool, const TcpConnectionAcceptorCallback &acceptor_callback, const TcpConnectionFilterCallback &connection_filter, const long idle_timeout, const size_t read_max=32768)
| Constructor.
virtual | ~TcpConnection ()
| Destructor.
void | asyncAccept ()
| Asynchronously accepts new connection.
void | doHandshake ()
| Asynchronously performs TLS handshake.
void | doRead (TcpRequestPtr request=TcpRequestPtr())
| Starts asynchronous read from the socket.
size_t | getReadMax () const
| Fetches the maximum number of bytes read during single socket read.
const boost::asio::ip::tcp::endpoint | getRemoteEndpoint () const
| Fetches the remote endpoint for the connection's socket.
TcpRequestPtr | postData (TcpRequestPtr request, WireData &input_data)
| Appends newly received raw data to the given request.
void | setReadMax (const size_t read_max)
| Sets the maximum number of bytes read during single socket read.

## Static Public Member Functions
static void | doPost (LeaseQueryConnectionWPtr wptr, const BlqPostCbArg &callback)
| Class/static version of post.
static bool | doPushToSend (LeaseQueryConnectionWPtr wptr, BlqResponsePtr response)
| Class/static version of pushToSend.
static void | doQueryComplete (LeaseQueryConnectionWPtr wptr, const Xid &xid)
| Class/static version of queryComplete.
static void | doSendNextResponse (LeaseQueryConnectionWPtr wptr)
| Class/static version of sendNextResponse.
Static Public Member Functions inherited from isc::tcp::TcpConnection
static const boost::asio::ip::tcp::endpoint & | NO_ENDPOINT ()
| Returns an empty end point.

## Protected Attributes
bool | can_send_
| Can send flag.
uint16_t | family_
| Protocol family AF_INET or AF_INET6.
asiolink::IOServicePtr | io_service_
| IOService that drives the connection events.
size_t | max_concurrent_queries_
| Maximum number of concurrent queries allowed.
XidQueue< BlqMsg > | pending_queries_
| Queue of queries waiting to enter processing.
BlqResponsePtr | response_to_send_
| Tracks the response currently being sent.
BlqResponseList | responses_
| List of responses waiting to be sent.
std::mutex | responses_mutex_
| Mutex used to lock during responses access.
XidQueue< BulkLeaseQuery > | running_queries_
| List of in-process queries.
bool | stopping_
| Stopping flag.
Protected Attributes inherited from isc::tcp::TcpConnection
TcpConnectionAcceptorPtr | acceptor_
| Pointer to the TCP acceptor used to accept new connections.
TcpConnectionAcceptorCallback | acceptor_callback_
| External TCP acceptor callback.
TcpConnectionFilterCallback | connection_filter_
| External callback for filtering connections by IP address.
TcpConnectionPool & | connection_pool_
| Connection pool holding this connection.
long | idle_timeout_
| Timeout after which the a TCP connection is shut down by the server.
asiolink::IntervalTimer | idle_timer_
| Timer used to detect idle Timeout.
WireData | input_buf_
| Buffer for a single socket read.
asiolink::IOServicePtr | io_service_
| The IO service used to handle events.
size_t | read_max_
| Maximum bytes to read in a single socket read.
boost::asio::ip::tcp::endpoint | remote_endpoint_
| Remote endpoint.
std::unique_ptr< asiolink::TCPSocket< SocketCallback > > | tcp_socket_
| TCP socket used by this connection.
asiolink::TlsContextPtr | tls_context_
| TLS context.
std::unique_ptr< asiolink::TLSSocket< SocketCallback > > | tls_socket_
| TLS socket used by this connection.

## Additional Inherited Members
Protected Member Functions inherited from isc::tcp::TcpConnection
void | acceptorCallback (const boost::system::error_code &ec)
| Local callback invoked when new connection is accepted.
void | asyncSendResponse (TcpResponsePtr response)
| Sends TCP response asynchronously.
void | doWrite (TcpResponsePtr response)
| Starts asynchronous write to the socket.
unsigned char * | getInputBufData ()
| Returns pointer to the first byte of the input buffer.
size_t | getInputBufSize () const
| Returns input buffer size.
std::string | getRemoteEndpointAddressAsText () const
| returns remote address in textual form
void | handshakeCallback (const boost::system::error_code &ec)
| Local callback invoked when TLS handshake is performed.
void | idleTimeoutCallback ()
| Callback invoked when the client has been idle.
void | setupIdleTimer ()
| Reset timer for detecting idle timeout in connections.
void | shutdownCallback (const boost::system::error_code &ec)
| Callback invoked when TLS shutdown is performed.
virtual void | shutdownConnection ()
| Shuts down current connection.
void | socketReadCallback (TcpRequestPtr request, boost::system::error_code ec, size_t length)
| Callback invoked when new data is received over the socket.
virtual void | socketWriteCallback (TcpResponsePtr request, boost::system::error_code ec, size_t length)
| Callback invoked when data is sent over the socket.

## Detailed Description

Derivation of TcpConnection used for Bulk LeaseQuery.

Definition at line 156 of file lease_query_connection.h.

## Constructor & Destructor Documentation

## ◆ LeaseQueryConnection()

isc::lease_query::LeaseQueryConnection::LeaseQueryConnection | ( | const asiolink::IOServicePtr & | io_service,
|  | const tcp::TcpConnectionAcceptorPtr & | acceptor,
|  | const asiolink::TlsContextPtr & | tls_context,
|  | tcp::TcpConnectionPool & | connection_pool,
|  | const tcp::TcpConnectionAcceptorCallback & | acceptor_callback,
|  | const tcp::TcpConnectionFilterCallback & | filter_callback,
|  | const long | idle_timeout,
|  | const uint16_t | family,
|  | const size_t | max_concurrent_queries,
|  | const size_t | read_max = 32768 )

Constructor.

Parameters

  io_service | IO service to be used by the connection.
  acceptor | Pointer to the TCP acceptor object used to listen for new TCP connections.
  tls_context | TLS context.
  connection_pool | Connection pool in which this connection is stored.
  acceptor_callback | Callback invoked when new connection is accepted.
  filter_callback | Callback invoked prior to handshake which can be used to qualify and reject connections.
  idle_timeout | Timeout after which a TCP connection is closed by the server.
  family | Protocol family, AF_INET or AF_INET6.
  max_concurrent_queries | Maximum number of in-progress queries allowed.
  read_max | maximum size of a single socket read. Defaults to 32K.

Definition at line 28 of file lease_query_connection.cc.

References isc::tcp::TcpConnection::TcpConnection(), can_send_, family_, io_service_, max_concurrent_queries_, and stopping_.

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## ◆ ~LeaseQueryConnection()

virtual isc::lease_query::LeaseQueryConnection::~LeaseQueryConnection | ( |  | ) |
| inline virtual

Destructor.

Definition at line 186 of file lease_query_connection.h.

## Member Function Documentation

## ◆ addPendingQuery()

void isc::lease_query::LeaseQueryConnection::addPendingQuery | ( | BlqQueryPtr | query | ) |
| inline

Queues a query to the end of the queue of waiting queries.

Parameters

  query | Query to queue.

Definition at line 318 of file lease_query_connection.h.

References pending_queries_.

Referenced by requestReceived().

## ◆ addRunningQuery()

void isc::lease_query::LeaseQueryConnection::addRunningQuery | ( | BulkLeaseQueryPtr | query | ) |
| inline

Adds a query to the end of the list of in-progress queries.

Parameters

  query | Query to add.

Definition at line 290 of file lease_query_connection.h.

References running_queries_.

Referenced by startQuery().

## ◆ canSend()

bool isc::lease_query::LeaseQueryConnection::canSend | ( |  | ) | const
| inline

Can send (aka stopped) flag.

Returns
  True if the connection can be used to send a response, False otherwise i.e. the connection was shutdown or closed.

Definition at line 212 of file lease_query_connection.h.

References can_send_.

## ◆ close()

void isc::lease_query::LeaseQueryConnection::close | ( |  | ) |
| virtual

Closes the socket.

Reimplemented from isc::tcp::TcpConnection.

Definition at line 68 of file lease_query_connection.cc.

References can_send_, isc::tcp::TcpConnection::close(), pending_queries_, response_to_send_, responses_, responses_mutex_, and running_queries_.

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## ◆ createRequest()

TcpRequestPtr isc::lease_query::LeaseQueryConnection::createRequest | ( |  | ) |
| virtual

Creates a new empty request ready to receive data.

Returns
  A new empty request.

Implements isc::tcp::TcpConnection.

Definition at line 100 of file lease_query_connection.cc.

## ◆ doPost()

void isc::lease_query::LeaseQueryConnection::doPost | ( | LeaseQueryConnectionWPtr | wptr,
|  | const BlqPostCbArg & | callback )
| inline static

Class/static version of post.

Parameters

  wptr | Weak pointer to a lease query connection.
  callback | The callback to post.

Definition at line 362 of file lease_query_connection.h.

Referenced by startQuery().

## ◆ doPushToSend()

bool isc::lease_query::LeaseQueryConnection::doPushToSend | ( | LeaseQueryConnectionWPtr | wptr,
|  | BlqResponsePtr | response )
| inline static

Class/static version of pushToSend.

Parameters

  wptr | Weak pointer to a lease query connection.
  response | Pointer to the response to send.

Returns
  True if the response can be sent, False otherwise.

Definition at line 344 of file lease_query_connection.h.

Referenced by startQuery().

## ◆ doQueryComplete()

void isc::lease_query::LeaseQueryConnection::doQueryComplete | ( | LeaseQueryConnectionWPtr | wptr,
|  | const Xid & | xid )
| inline static

Class/static version of queryComplete.

Parameters

  wptr | Weak pointer to a lease query connection.
  xid | Xid of the query that has finished.

Definition at line 381 of file lease_query_connection.h.

Referenced by startQuery().

## ◆ doSendNextResponse()

void isc::lease_query::LeaseQueryConnection::doSendNextResponse | ( | LeaseQueryConnectionWPtr | wptr | ) |
| inline static

Class/static version of sendNextResponse.

Parameters

  wptr | Weak pointer to a lease query connection.

Definition at line 231 of file lease_query_connection.h.

Referenced by pushToSend().

## ◆ findQuery()

bool isc::lease_query::LeaseQueryConnection::findQuery | ( | const Xid & | xid | ) | const
| inline

Find queries based on Xid in the query list and queue.

Parameters

  xid | Xid of the query to find.

Returns
  True if there is a query with the Xid in the in-progress

Definition at line 311 of file lease_query_connection.h.

References pending_queries_, and running_queries_.

Referenced by requestReceived().

## ◆ getNumResponses()

size_t isc::lease_query::LeaseQueryConnection::getNumResponses | ( |  | ) | const

Returns the number of responses in the response queue.

Definition at line 427 of file lease_query_connection.cc.

References responses_, and responses_mutex_.

## ◆ getNumRunningQueries()

size_t isc::lease_query::LeaseQueryConnection::getNumRunningQueries | ( |  | ) | const
| inline

Returns the number of queries in the in-progress list.

Definition at line 295 of file lease_query_connection.h.

References running_queries_.

Referenced by processNextQuery(), and requestReceived().

## ◆ getRemoteEndpointAddressAsText()

std::string isc::tcp::TcpConnection::getRemoteEndpointAddressAsText | ( |  | ) | const

Export getRemoteEndpointAddressAsText.

Definition at line 407 of file tcp_connection.cc.

Referenced by popPendingQuery(), requestReceived(), sendNextResponse(), startQuery(), unpackQuery4(), and unpackQuery6().

## ◆ getRequesterAddress()

IOAddress isc::lease_query::LeaseQueryConnection::getRequesterAddress | ( |  | ) | const

Returns the requester's ip address.

Definition at line 433 of file lease_query_connection.cc.

References family_, isc::tcp::TcpConnection::getRemoteEndpoint(), isc::asiolink::IOAddress::IPV4_ZERO_ADDRESS(), isc::asiolink::IOAddress::IPV6_ZERO_ADDRESS(), and isc::tcp::TcpConnection::NO_ENDPOINT().

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## ◆ isStopping()

bool isc::lease_query::LeaseQueryConnection::isStopping | ( |  | ) | const
| inline

Stopping flag.

Returns
  True if the connection is and will be stopped, False otherwise.

Definition at line 204 of file lease_query_connection.h.

References stopping_.

## ◆ makeTcpResponse()

TcpResponsePtr isc::lease_query::LeaseQueryConnection::makeTcpResponse | ( | BlqResponsePtr | blq_response | ) | const

Constructs a ready to send TcpResponse from and BlqResponse.

Parameters

  blq_response | Pointer to the source BlqResponse, cannot be empty.

Returns
  A pointer to a TcpResponse.

Exceptions

  BadValue | if the input pointer is empty.

Definition at line 219 of file lease_query_connection.cc.

References isc_throw.

Referenced by sendNextResponse().

## ◆ noPendingQuery()

bool isc::lease_query::LeaseQueryConnection::noPendingQuery | ( |  | ) | const
| inline

Returns True if the queue of waiting queries is empty.

Definition at line 323 of file lease_query_connection.h.

References pending_queries_.

Referenced by processNextQuery(), and requestReceived().

## ◆ popPendingQuery()

BlqQueryPtr isc::lease_query::LeaseQueryConnection::popPendingQuery | ( |  | ) |

Pops a query from the queue of waiting queries.

Definition at line 342 of file lease_query_connection.cc.

References isc::lease_query::BULK_LEASE_QUERY_DEQUEUED, isc::log::DBGLVL_TRACE_BASIC, getRemoteEndpointAddressAsText(), isc::lease_query::lease_query_logger, isc::lease_query::BulkLeaseQuery6::leaseQueryLabel(), LOG_DEBUG, and pending_queries_.

Referenced by processNextQuery().

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## ◆ post()

void isc::lease_query::LeaseQueryConnection::post | ( | const BlqPostCbArg & | callback | ) |
| virtual

Posts an event callback to the connection's IOService.

Parameters

  callback | The callback to post.

Definition at line 393 of file lease_query_connection.cc.

References isc::lease_query::BULK_LEASE_QUERY_PROCESSING_UNEXPECTED_FAILURE, can_send_, io_service_, isc::lease_query::lease_query_logger, LOG_ERROR, responses_mutex_, and stopping_.

Referenced by startQuery().

## ◆ processNextQuery()

void isc::lease_query::LeaseQueryConnection::processNextQuery | ( |  | ) |
| virtual

Process next waiting query.

Definition at line 355 of file lease_query_connection.cc.

References can_send_, getNumRunningQueries(), max_concurrent_queries_, noPendingQuery(), popPendingQuery(), responses_mutex_, startQuery(), and stopping_.

Referenced by queryComplete().

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## ◆ pushToSend()

bool isc::lease_query::LeaseQueryConnection::pushToSend | ( | BlqResponsePtr | response | ) |
| virtual

Adds a response to the connection's outbound queue of responses.

Parameters

  response | Pointer to the response to send.

Returns
  True if the response can be sent, False otherwise.

Definition at line 378 of file lease_query_connection.cc.

References can_send_, doSendNextResponse(), io_service_, responses_, responses_mutex_, and stopping_.

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## ◆ queryComplete()

void isc::lease_query::LeaseQueryConnection::queryComplete | ( | const Xid & | xid | ) |
| virtual

Finishes up when a query has been completed (e.g.

reached EOF, failed, was terminated)

Parameters

  xid | Xid of the query that has finished.

Definition at line 415 of file lease_query_connection.cc.

References can_send_, processNextQuery(), removeRunningQuery(), responses_mutex_, and stopping_.

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## ◆ removeRunningQuery()

void isc::lease_query::LeaseQueryConnection::removeRunningQuery | ( | const Xid & | xid | ) |
| inline

Removes a query from the in-progress query list.

Parameters

  xid | Xid of the query to remove.

Definition at line 302 of file lease_query_connection.h.

References running_queries_.

Referenced by queryComplete().

## ◆ requestReceived()

void isc::lease_query::LeaseQueryConnection::requestReceived | ( | tcp::TcpRequestPtr | request | ) |
| virtual

Processes a completely received request.

This function is invoked when the connection has completely received a TCP stream request message and performs the following:

- The stream request wire data is unpacked into a family-specific bulk lease query message.
- the bulk lease query is processed or queued.

Parameters

  request | Request to process.

Implements isc::tcp::TcpConnection.

Definition at line 105 of file lease_query_connection.cc.

References addPendingQuery(), isc::lease_query::BULK_LEASE_QUERY_AT_MAX_CONCURRENT_QUERIES, isc::lease_query::BULK_LEASE_QUERY_DUPLICATE_XID, isc::lease_query::BULK_LEASE_QUERY_EMPTY_REQUEST, isc::lease_query::BULK_LEASE_QUERY_QUERY_RECEIVED, isc::lease_query::BULK_LEASE_QUERY_UNPACK_ERROR, isc::log::DBGLVL_TRACE_BASIC, family_, findQuery(), getNumRunningQueries(), getRemoteEndpointAddressAsText(), isc_throw, isc::lease_query::lease_query_logger, isc::lease_query::BulkLeaseQuery6::leaseQueryLabel(), LOG_DEBUG, LOG_ERROR, LOG_WARN, max_concurrent_queries_, noPendingQuery(), startQuery(), stopThisConnection(), unpackQuery4(), and unpackQuery6().

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## ◆ responseSent()

bool isc::lease_query::LeaseQueryConnection::responseSent | ( | tcp::TcpResponsePtr | response | ) |
| virtual

Processes a response once it has been sent.

Parameters

  response | Response that was sent to the remote endpoint.

Returns
  Always true, signifying that the connection should start the idle timer.

Implements isc::tcp::TcpConnection.

Definition at line 240 of file lease_query_connection.cc.

References response_to_send_, responses_mutex_, and sendNextResponse().

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## ◆ sendNextResponse()

void isc::lease_query::LeaseQueryConnection::sendNextResponse | ( |  | ) |
| virtual

Sends the next response in the response queue.

If there is currently no send in progress and there are entries in the response queue, it dequeues a response from the front of the queue and initiates an asynchronous send.

Definition at line 174 of file lease_query_connection.cc.

References isc::tcp::TcpConnection::asyncSendResponse(), isc::lease_query::BULK_LEASE_QUERY_RESPONSE_SEND_ERROR, isc::lease_query::BULK_LEASE_QUERY_RESPONSE_SENT, can_send_, isc::log::DBGLVL_TRACE_BASIC, getRemoteEndpointAddressAsText(), isc::lease_query::lease_query_logger, isc::lease_query::BulkLeaseQuery6::leaseQueryLabel(), LOG_DEBUG, LOG_ERROR, makeTcpResponse(), response_to_send_, responses_, responses_mutex_, stopping_, and isc::tcp::TcpConnection::stopThisConnection().

Referenced by responseSent().

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## ◆ shutdown()

void isc::lease_query::LeaseQueryConnection::shutdown | ( |  | ) |
| virtual

Shutdown the socket.

Reimplemented from isc::tcp::TcpConnection.

Definition at line 55 of file lease_query_connection.cc.

References can_send_, pending_queries_, response_to_send_, responses_, responses_mutex_, running_queries_, and isc::tcp::TcpConnection::shutdown().

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## ◆ startQuery()

void isc::lease_query::LeaseQueryConnection::startQuery | ( | BlqQueryPtr | query_msg | ) |

Start query processing.

A new BulkLeaseQuery instance is created and started.

Parameters

  query_msg | Query message to process.

Definition at line 288 of file lease_query_connection.cc.

References addRunningQuery(), isc::lease_query::BULK_LEASE_QUERY_INVALID_REQUEST, can_send_, doPost(), doPushToSend(), doQueryComplete(), family_, getRemoteEndpointAddressAsText(), isc::lease_query::lease_query_logger, isc::lease_query::BulkLeaseQuery4::leaseQueryLabel(), isc::lease_query::BulkLeaseQuery6::leaseQueryLabel(), LOG_ERROR, post(), isc::lease_query::BulkLeaseQuery::processStart(), responses_mutex_, stopping_, and stopThisConnection().

Referenced by processNextQuery(), and requestReceived().

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## ◆ stopThisConnection()

void isc::lease_query::LeaseQueryConnection::stopThisConnection | ( |  | ) |
| virtual

Stops current connection.

Enforce sequencing with response sending.

Reimplemented from isc::tcp::TcpConnection.

Definition at line 81 of file lease_query_connection.cc.

References can_send_, response_to_send_, responses_mutex_, stopping_, and isc::tcp::TcpConnection::stopThisConnection().

Referenced by requestReceived(), and startQuery().

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## ◆ unpackQuery4()

BlqQueryPtr isc::lease_query::LeaseQueryConnection::unpackQuery4 | ( | const uint8_t * | buffer,
|  | size_t | length ) const

Unpacks a DHCPv4 packet from a data buffer.

Parameters

  buffer | Buffer containing the packed DHCPv4 packet.
  length | Number of bytes in contained in the buffer.

Returns
  A BlqQueryPtr containing the unpacked DHCPv4 packet.

Definition at line 252 of file lease_query_connection.cc.

References isc::lease_query::BULK_LEASE_QUERY4_UNSUPPORTED_MSG_TYPE, isc::dhcp::DHCPBULKLEASEQUERY, isc::tcp::TcpConnection::getRemoteEndpoint(), getRemoteEndpointAddressAsText(), isc::lease_query::lease_query_logger, and LOG_ERROR.

Referenced by requestReceived().

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## ◆ unpackQuery6()

BlqQueryPtr isc::lease_query::LeaseQueryConnection::unpackQuery6 | ( | const uint8_t * | buffer,
|  | size_t | length ) const

Unpacks a DHCPv6 packet from a data buffer.

Parameters

  buffer | Buffer containing the packed DHCPv6 packet.
  length | Number of bytes in contained in the buffer.

Returns
  A BlqQueryPtr containing the unpacked DHCPv6 packet.

Definition at line 270 of file lease_query_connection.cc.

References isc::lease_query::BULK_LEASE_QUERY6_UNSUPPORTED_MSG_TYPE, DHCPV6_LEASEQUERY, isc::tcp::TcpConnection::getRemoteEndpoint(), getRemoteEndpointAddressAsText(), isc::lease_query::lease_query_logger, and LOG_ERROR.

Referenced by requestReceived().

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## Member Data Documentation

## ◆ can_send_

bool isc::lease_query::LeaseQueryConnection::can_send_
| protected

Can send flag.

Definition at line 409 of file lease_query_connection.h.

Referenced by LeaseQueryConnection(), canSend(), close(), post(), processNextQuery(), pushToSend(), queryComplete(), sendNextResponse(), shutdown(), startQuery(), and stopThisConnection().

## ◆ family_

uint16_t isc::lease_query::LeaseQueryConnection::family_
| protected

Protocol family AF_INET or AF_INET6.

Definition at line 400 of file lease_query_connection.h.

Referenced by LeaseQueryConnection(), getRequesterAddress(), requestReceived(), and startQuery().

## ◆ io_service_

asiolink::IOServicePtr isc::lease_query::LeaseQueryConnection::io_service_
| protected

IOService that drives the connection events.

Definition at line 403 of file lease_query_connection.h.

Referenced by LeaseQueryConnection(), post(), and pushToSend().

## ◆ max_concurrent_queries_

size_t isc::lease_query::LeaseQueryConnection::max_concurrent_queries_
| protected

Maximum number of concurrent queries allowed.

Zero means unlimited.

Definition at line 432 of file lease_query_connection.h.

Referenced by LeaseQueryConnection(), processNextQuery(), and requestReceived().

## ◆ pending_queries_

XidQueue<BlqMsg> isc::lease_query::LeaseQueryConnection::pending_queries_
| protected

Queue of queries waiting to enter processing.

When the in-process query list is full (size >= maximum), received queries are queued. When a query was processed a queued query is popped and processed.

Definition at line 419 of file lease_query_connection.h.

Referenced by addPendingQuery(), close(), findQuery(), noPendingQuery(), popPendingQuery(), and shutdown().

## ◆ response_to_send_

BlqResponsePtr isc::lease_query::LeaseQueryConnection::response_to_send_
| protected

Tracks the response currently being sent.

Definition at line 428 of file lease_query_connection.h.

Referenced by close(), responseSent(), sendNextResponse(), shutdown(), and stopThisConnection().

## ◆ responses_

BlqResponseList isc::lease_query::LeaseQueryConnection::responses_
| protected

List of responses waiting to be sent.

Definition at line 422 of file lease_query_connection.h.

Referenced by close(), getNumResponses(), pushToSend(), sendNextResponse(), and shutdown().

## ◆ responses_mutex_

std::mutex isc::lease_query::LeaseQueryConnection::responses_mutex_
| mutable protected

Mutex used to lock during responses access.

Definition at line 425 of file lease_query_connection.h.

Referenced by close(), getNumResponses(), post(), processNextQuery(), pushToSend(), queryComplete(), responseSent(), sendNextResponse(), shutdown(), startQuery(), and stopThisConnection().

## ◆ running_queries_

XidQueue<BulkLeaseQuery> isc::lease_query::LeaseQueryConnection::running_queries_
| protected

List of in-process queries.

Definition at line 412 of file lease_query_connection.h.

Referenced by addRunningQuery(), close(), findQuery(), getNumRunningQueries(), removeRunningQuery(), and shutdown().

## ◆ stopping_

bool isc::lease_query::LeaseQueryConnection::stopping_
| protected

Stopping flag.

Definition at line 406 of file lease_query_connection.h.

Referenced by LeaseQueryConnection(), isStopping(), post(), processNextQuery(), pushToSend(), queryComplete(), sendNextResponse(), startQuery(), and stopThisConnection().

The documentation for this class was generated from the following files:

- lease_query_connection.h
- lease_query_connection.cc