A reactive observer strategy. More...

#include <EC_ObserverStrategy.h>

Inheritance diagram for TAO_EC_Reactive_ObserverStrategy:

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Collaboration diagram for TAO_EC_Reactive_ObserverStrategy:

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Public Member Functions
	TAO_EC_Reactive_ObserverStrategy (TAO_EC_Event_Channel_Base ec, ACE_Lock lock)
	Constructor.

virtual	~TAO_EC_Reactive_ObserverStrategy ()
	Destructor.

Public Member Functions inherited from TAO_EC_Basic_ObserverStrategy
	TAO_EC_Basic_ObserverStrategy (TAO_EC_Event_Channel_Base ec, ACE_Lock lock)
	Constructor.

virtual	~TAO_EC_Basic_ObserverStrategy ()
	Destructor.

virtual RtecEventChannelAdmin::Observer_Handle	append_observer (RtecEventChannelAdmin::Observer_ptr)
	The basic methods to support the EC strategies.

virtual void	remove_observer (RtecEventChannelAdmin::Observer_Handle)

virtual void	connected (TAO_EC_ProxyPushConsumer *)

virtual void	disconnected (TAO_EC_ProxyPushConsumer *)

virtual void	connected (TAO_EC_ProxyPushSupplier *)

virtual void	disconnected (TAO_EC_ProxyPushSupplier *)

Public Member Functions inherited from TAO_EC_ObserverStrategy
virtual	~TAO_EC_ObserverStrategy ()
	Destructor.

Protected Member Functions
virtual void	consumer_qos_update (TAO_EC_ProxyPushSupplier *supplier)
	Helpers.

virtual void	supplier_qos_update (TAO_EC_ProxyPushConsumer *consumer)
	Recompute EC supplier publications and send them out to all observers.

int	create_observer_map (Observer_Map &map)

void	observer_not_exists (Observer_Entry &observer)
	The observer doesn't exist anymore.

Protected Member Functions inherited from TAO_EC_Basic_ObserverStrategy
void	fill_qos (RtecEventChannelAdmin::ConsumerQOS &qos)
	Compute consumer QOS.

void	fill_qos (RtecEventChannelAdmin::SupplierQOS &qos)
	Compute supplier QOS.

int	create_observer_list (RtecEventChannelAdmin::Observer_var *&lst)

Additional Inherited Members
Public Types inherited from TAO_EC_Basic_ObserverStrategy
typedef ACE_Map_Manager< RtecEventChannelAdmin::Observer_Handle, Observer_Entry, ACE_Null_Mutex >	Observer_Map

typedef ACE_Map_Iterator< RtecEventChannelAdmin::Observer_Handle, Observer_Entry, ACE_Null_Mutex >	Observer_Map_Iterator

typedef ACE_RB_Tree< RtecEventComm::EventHeader, int, Header_Compare, ACE_Null_Mutex >	Headers

typedef ACE_RB_Tree_Iterator< RtecEventComm::EventHeader, int, Header_Compare, ACE_Null_Mutex >	HeadersIterator

Protected Attributes inherited from TAO_EC_Basic_ObserverStrategy
TAO_EC_Event_Channel_Base *	event_channel_
	The event channel.

ACE_Lock *	lock_
	The lock.

RtecEventChannelAdmin::Observer_Handle	handle_generator_

Observer_Map	observers_
	Keep the set of Observers.

Detailed Description

A reactive observer strategy.

This class simply keeps the information about the current list of observers, whenever the list of consumers and/or suppliers changes in queries the EC, computes the global subscription and/or publication list and sends the update message to all the observers. When an observer isn't reachable it is removed from the observer list.

Memory Management

It assumes ownership of the <lock>, but not of the Event_Channel.

Constructor & Destructor Documentation

◆ TAO_EC_Reactive_ObserverStrategy()

TAO_EC_Reactive_ObserverStrategy::TAO_EC_Reactive_ObserverStrategy	(	TAO_EC_Event_Channel_Base *	ec,
		ACE_Lock *	lock )

Constructor.

◆ ~TAO_EC_Reactive_ObserverStrategy()

TAO_EC_Reactive_ObserverStrategy::~TAO_EC_Reactive_ObserverStrategy ( )

virtual

Destructor.

Member Function Documentation

◆ consumer_qos_update()

void TAO_EC_Reactive_ObserverStrategy::consumer_qos_update ( TAO_EC_ProxyPushSupplier * supplier )

protectedvirtual

Helpers.

Recompute EC consumer subscriptions and send them out to all observers.

Reimplemented from TAO_EC_Basic_ObserverStrategy.

◆ create_observer_map()

int TAO_EC_Reactive_ObserverStrategy::create_observer_map ( Observer_Map & map )

protected

Copies all current observers into a map and passes it back to the caller through map.

Returns: Returns the size of the map.

◆ observer_not_exists()

void TAO_EC_Reactive_ObserverStrategy::observer_not_exists ( Observer_Entry & observer )

protected

The observer doesn't exist anymore.

◆ supplier_qos_update()

void TAO_EC_Reactive_ObserverStrategy::supplier_qos_update ( TAO_EC_ProxyPushConsumer * consumer )