TAO_CEC_ProxyPullSupplier Class Reference

ProxyPullSupplier. More...

#include <CEC_ProxyPullSupplier.h>

Inheritance diagram for TAO_CEC_ProxyPullSupplier:

Collaboration diagram for TAO_CEC_ProxyPullSupplier:

Public Types
typedef CosEventChannelAdmin::ProxyPullSupplier_ptr	_ptr_type
typedef CosEventChannelAdmin::ProxyPullSupplier_var	_var_type

Public Member Functions
	TAO_CEC_ProxyPullSupplier (TAO_CEC_EventChannel *event_channel, const ACE_Time_Value &timeout)
	constructor...
virtual	~TAO_CEC_ProxyPullSupplier ()
	destructor...
virtual void	activate (CosEventChannelAdmin::ProxyPullSupplier_ptr &activated_proxy)
	Activate in the POA.
virtual void	deactivate ()
	Deactivate from the POA.
CORBA::Boolean	is_connected () const
	Return 0 if no consumer is connected...
CosEventComm::PullConsumer_ptr	consumer () const
virtual void	shutdown ()
	The event channel is shutting down.
CORBA::Boolean	consumer_non_existent (CORBA::Boolean_out disconnected)
void	push (const CORBA::Any &event)
	Push an event into the queue.
virtual void	connect_pull_consumer (CosEventComm::PullConsumer_ptr pull_consumer)
virtual CORBA::Any *	pull ()
virtual CORBA::Any *	try_pull (CORBA::Boolean_out has_event)
virtual void	disconnect_pull_supplier ()
CORBA::ULong	_incr_refcnt ()
	Increment and decrement the reference count.
CORBA::ULong	_decr_refcnt ()
virtual PortableServer::POA_ptr	_default_POA ()
virtual void	_add_ref ()
virtual void	_remove_ref ()

Protected Member Functions
void	consumer (CosEventComm::PullConsumer_ptr consumer)
void	consumer_i (CosEventComm::PullConsumer_ptr consumer)
CORBA::Boolean	is_connected_i () const
	The private version (without locking) of is_connected().
void	cleanup_i ()
	Release the child and the consumer.
CosEventComm::PullConsumer_ptr	apply_policy (CosEventComm::PullConsumer_ptr c)

Private Attributes
TAO_CEC_EventChannel *	event_channel_
	The Event Channel that owns this object.
ACE_Time_Value	timeout_
ACE_Lock *	lock_
	The locking strategy.
CORBA::ULong	refcount_
	The reference count.
CosEventComm::PullConsumer_var	consumer_
CosEventComm::PullConsumer_var	nopolicy_consumer_
	The consumer without any policies applied.
int	connected_
PortableServer::POA_var	default_POA_
	Store the default POA.
TAO_SYNCH_MUTEX	queue_lock_
	Use a message queue to pass the.
TAO_SYNCH_CONDITION	wait_not_empty_
ACE_Unbounded_Queue< CORBA::Any >	queue_

Detailed Description

ProxyPullSupplier.

Implement the CosEventChannelAdmin::ProxyPullSupplier interface, remember that this class is used to communicate with a PullConsumer, so, in effect, this is the ambassador for a consumer inside the event channel. = MEMORY MANAGEMENT It does not assume ownership of the TAO_CEC_Dispatching object. It makes a copy of the ConsumerQOS and the consumer object reference. = LOCKING Locking is strategized, the event channel acts as a factory for the locking strategies.

Member Typedef Documentation

_ptr_type

typedef CosEventChannelAdmin::ProxyPullSupplier_ptr TAO_CEC_ProxyPullSupplier::_ptr_type

_var_type

typedef CosEventChannelAdmin::ProxyPullSupplier_var TAO_CEC_ProxyPullSupplier::_var_type

Constructor & Destructor Documentation

TAO_CEC_ProxyPullSupplier()

TAO_CEC_ProxyPullSupplier::TAO_CEC_ProxyPullSupplier	(	TAO_CEC_EventChannel *	event_channel,
		const ACE_Time_Value &	timeout )

constructor...

~TAO_CEC_ProxyPullSupplier()

TAO_CEC_ProxyPullSupplier::~TAO_CEC_ProxyPullSupplier ( )

virtual

destructor...

Member Function Documentation

_add_ref()

void TAO_CEC_ProxyPullSupplier::_add_ref ( )

virtual

_decr_refcnt()

CORBA::ULong TAO_CEC_ProxyPullSupplier::_decr_refcnt

(

)

_default_POA()

PortableServer::POA_ptr TAO_CEC_ProxyPullSupplier::_default_POA ( )

virtual

_incr_refcnt()

CORBA::ULong TAO_CEC_ProxyPullSupplier::_incr_refcnt

(

)

Increment and decrement the reference count.

_remove_ref()

void TAO_CEC_ProxyPullSupplier::_remove_ref ( )

virtual

activate()

void TAO_CEC_ProxyPullSupplier::activate ( CosEventChannelAdmin::ProxyPullSupplier_ptr & activated_proxy )

virtual

Activate in the POA.

apply_policy()

CosEventComm::PullConsumer_ptr TAO_CEC_ProxyPullSupplier::apply_policy ( CosEventComm::PullConsumer_ptr c )

protected

Assigns the parameter to both consumer_ and nopolicy_consumer_, and applies policies (when appropriate) to consumer_.

cleanup_i()

void TAO_CEC_ProxyPullSupplier::cleanup_i ( )

protected

Release the child and the consumer.

connect_pull_consumer()

void TAO_CEC_ProxyPullSupplier::connect_pull_consumer ( CosEventComm::PullConsumer_ptr pull_consumer )

virtual

consumer() [1/2]

CosEventComm::PullConsumer_ptr TAO_CEC_ProxyPullSupplier::consumer

(

)

const

Return the consumer object reference. It returns nil() if it has not connected yet.

Note

This method does not return a new reference!!! Doing so will increase the locking overhead on the critical path.

consumer() [2/2]

void TAO_CEC_ProxyPullSupplier::consumer ( CosEventComm::PullConsumer_ptr consumer )

protected

Set the consumer, used by some implementations to change the policies used when invoking operations on the consumer.

consumer_i()

void TAO_CEC_ProxyPullSupplier::consumer_i ( CosEventComm::PullConsumer_ptr consumer )

protected

consumer_non_existent()

CORBA::Boolean TAO_CEC_ProxyPullSupplier::consumer_non_existent

(

CORBA::Boolean_out

disconnected

)

Invoke the _non_existent() pseudo-operation on the consumer. If it is disconnected then it returns true and sets the disconnected flag.

deactivate()

void TAO_CEC_ProxyPullSupplier::deactivate ( )

virtual

Deactivate from the POA.

disconnect_pull_supplier()

void TAO_CEC_ProxyPullSupplier::disconnect_pull_supplier ( )

virtual

is_connected()

CORBA::Boolean TAO_CEC_ProxyPullSupplier::is_connected

(

)

const

Return 0 if no consumer is connected...

is_connected_i()

CORBA::Boolean TAO_CEC_ProxyPullSupplier::is_connected_i ( ) const

protected

The private version (without locking) of is_connected().

pull()

CORBA::Any * TAO_CEC_ProxyPullSupplier::pull ( )

virtual

push()

void TAO_CEC_ProxyPullSupplier::push

(

const CORBA::Any &

event

)

Push an event into the queue.

shutdown()

void TAO_CEC_ProxyPullSupplier::shutdown ( )

virtual

The event channel is shutting down.

try_pull()

CORBA::Any * TAO_CEC_ProxyPullSupplier::try_pull ( CORBA::Boolean_out has_event )

virtual

Member Data Documentation

connected_

int TAO_CEC_ProxyPullSupplier::connected_

private

If the flag is not zero then we are connected, notice that the consumer can be nil.

consumer_

CosEventComm::PullConsumer_var TAO_CEC_ProxyPullSupplier::consumer_

private

The consumer – use apply_policy() instead of assigning directly to consumer_. This will keep consumer_ and nopolicy_consumer_ in sync.

default_POA_

PortableServer::POA_var TAO_CEC_ProxyPullSupplier::default_POA_

private

Store the default POA.

event_channel_

TAO_CEC_EventChannel* TAO_CEC_ProxyPullSupplier::event_channel_

private

The Event Channel that owns this object.

lock_

ACE_Lock* TAO_CEC_ProxyPullSupplier::lock_

private

The locking strategy.

nopolicy_consumer_

CosEventComm::PullConsumer_var TAO_CEC_ProxyPullSupplier::nopolicy_consumer_

private

The consumer without any policies applied.

queue_

ACE_Unbounded_Queue<CORBA::Any> TAO_CEC_ProxyPullSupplier::queue_

private

queue_lock_

TAO_SYNCH_MUTEX TAO_CEC_ProxyPullSupplier::queue_lock_

private

Use a message queue to pass the.

refcount_

CORBA::ULong TAO_CEC_ProxyPullSupplier::refcount_

private

The reference count.

timeout_

ACE_Time_Value TAO_CEC_ProxyPullSupplier::timeout_

private

wait_not_empty_

TAO_SYNCH_CONDITION TAO_CEC_ProxyPullSupplier::wait_not_empty_

private

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

• CEC_ProxyPullSupplier.h
• CEC_ProxyPullSupplier.cpp
• CEC_ProxyPullSupplier.inl