DestinationNodesStateNotifier Class Reference

Allows the obervers to register for notifications on the change in the state of the destination nodes. More...

#include <destination_nodes_state_notifier.h>

Inheritance diagram for DestinationNodesStateNotifier:

Public Member Functions
virtual	~DestinationNodesStateNotifier ()=default
AllowedNodesChangeCallbacksListIterator	register_allowed_nodes_change_callback (const AllowedNodesChangedCallback &clb)
	Registers the callback for notification on the change in the state if the destination nodes. More...
void	unregister_allowed_nodes_change_callback (const AllowedNodesChangeCallbacksListIterator &it)
	Unregisters the callback registered with register_allowed_nodes_change_callback(). More...
void	register_refresh_router_socket_acceptor_state (const RefreshSocketAcceptorStateCallback &clb)
	Registers the callback for notification that the routing socket acceptor state may need to be refreshed. More...
void	unregister_refresh_router_socket_acceptor_state ()
	Unregisters the callback registered with register_refresh_router_socket_acceptor_state(). More...
void	register_md_refresh_callback (const MetadataRefreshCallback &callback)
	Registers a callback that is going to be used on metadata refresh. More...
void	unregister_md_refresh_callback ()
	Unregisters the callback registered with register_md_refresh_callback(). More...
void	register_query_quarantined_destinations (const QueryQuarantinedDestinationsCallback &clb)
	Registers a callback that could be used for checking if the provided destination candidate is currently quarantined. More...
void	unregister_query_quarantined_destinations ()
	Unregisters the callback registered with register_query_quarantined_destinations(). More...
virtual bool	is_dynamic ()
	Specifies if the destination addresses can be added/removed from the set. More...
virtual std::string	get_dynamic_plugin_name ()

Protected Attributes
AllowedNodesChangeCallbacksList	allowed_nodes_change_callbacks_
MetadataRefreshCallback	md_refresh_callback_
RefreshSocketAcceptorStateCallback	refresh_router_socket_acceptor_state_callback_
QueryQuarantinedDestinationsCallback	query_quarantined_destinations_callback_
std::mutex	allowed_nodes_change_callbacks_mtx_
std::mutex	md_refresh_callback_mtx_
std::mutex	socket_acceptor_handle_callbacks_mtx
std::mutex	query_quarantined_destinations_callback_mtx_

Detailed Description

Allows the obervers to register for notifications on the change in the state of the destination nodes.

Constructor & Destructor Documentation

~DestinationNodesStateNotifier()

virtual DestinationNodesStateNotifier::~DestinationNodesStateNotifier ( )

virtualdefault

Member Function Documentation

get_dynamic_plugin_name()

std::string DestinationNodesStateNotifier::get_dynamic_plugin_name ( )

virtual

Reimplemented in DestMetadataCacheManager.

is_dynamic()

bool DestinationNodesStateNotifier::is_dynamic ( )

virtual

Specifies if the destination addresses can be added/removed from the set.

NOTE: the sequence of nodes may change.

Reimplemented in DestMetadataCacheManager.

register_allowed_nodes_change_callback()

AllowedNodesChangeCallbacksListIterator DestinationNodesStateNotifier::register_allowed_nodes_change_callback

(

const AllowedNodesChangedCallback &

clb

)

Registers the callback for notification on the change in the state if the destination nodes.

Parameters

clb	callback that should be called

Returns

identifier of the inserted callback, can be used to unregister the callback

register_md_refresh_callback()

void DestinationNodesStateNotifier::register_md_refresh_callback

(

const MetadataRefreshCallback &

callback

)

Registers a callback that is going to be used on metadata refresh.

Parameters

callback

Callback that will be called on each metadata refresh.

register_query_quarantined_destinations()

void DestinationNodesStateNotifier::register_query_quarantined_destinations

(

const QueryQuarantinedDestinationsCallback &

clb

)

Registers a callback that could be used for checking if the provided destination candidate is currently quarantined.

Parameters

clb	Callback to query unreachable destinations.

register_refresh_router_socket_acceptor_state()

void DestinationNodesStateNotifier::register_refresh_router_socket_acceptor_state

(

const RefreshSocketAcceptorStateCallback &

clb

)

Registers the callback for notification that the routing socket acceptor state may need to be refreshed.

Parameters

clb	callback that should be called

unregister_allowed_nodes_change_callback()

void DestinationNodesStateNotifier::unregister_allowed_nodes_change_callback

(

const AllowedNodesChangeCallbacksListIterator &

it

)

Unregisters the callback registered with register_allowed_nodes_change_callback().

Parameters

it	iterator returned by the call to register_allowed_nodes_change_callback()

unregister_md_refresh_callback()

void DestinationNodesStateNotifier::unregister_md_refresh_callback

(

)

Unregisters the callback registered with register_md_refresh_callback().

unregister_query_quarantined_destinations()

void DestinationNodesStateNotifier::unregister_query_quarantined_destinations

(

)

Unregisters the callback registered with register_query_quarantined_destinations().

unregister_refresh_router_socket_acceptor_state()

void DestinationNodesStateNotifier::unregister_refresh_router_socket_acceptor_state

(

)

Unregisters the callback registered with register_refresh_router_socket_acceptor_state().

Member Data Documentation

allowed_nodes_change_callbacks_

AllowedNodesChangeCallbacksList DestinationNodesStateNotifier::allowed_nodes_change_callbacks_

protected

allowed_nodes_change_callbacks_mtx_

std::mutex DestinationNodesStateNotifier::allowed_nodes_change_callbacks_mtx_

mutableprotected

md_refresh_callback_

MetadataRefreshCallback DestinationNodesStateNotifier::md_refresh_callback_

protected

md_refresh_callback_mtx_

std::mutex DestinationNodesStateNotifier::md_refresh_callback_mtx_

mutableprotected

query_quarantined_destinations_callback_

QueryQuarantinedDestinationsCallback DestinationNodesStateNotifier::query_quarantined_destinations_callback_

protected

query_quarantined_destinations_callback_mtx_

std::mutex DestinationNodesStateNotifier::query_quarantined_destinations_callback_mtx_

mutableprotected

refresh_router_socket_acceptor_state_callback_

RefreshSocketAcceptorStateCallback DestinationNodesStateNotifier::refresh_router_socket_acceptor_state_callback_

protected

socket_acceptor_handle_callbacks_mtx

std::mutex DestinationNodesStateNotifier::socket_acceptor_handle_callbacks_mtx

mutableprotected

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

• router/src/routing/include/mysqlrouter/destination_nodes_state_notifier.h
• router/src/routing/src/destination.cc