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# TAO_CEC_ProxyPullSupplier Class Reference

ProxyPullSupplier. More...

`#include <CEC_ProxyPullSupplier.h>`

Collaboration diagram for TAO_CEC_ProxyPullSupplier:

[legend]
List of all members.

## Public Types

typedef CosEventChannelAdmin::ProxyPullSupplier_ptr | _ptr_type
typedef CosEventChannelAdmin::ProxyPullSupplier_var | _var_type

## Public Methods

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

## Protected Methods

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

## Private Attributes

TAO_CEC_EventChannel * | event_channel_
| The Event Channel that owns this object.
ACE_Lock * | lock_
| The locking strategy.
CORBA::ULong | refcount_
| The reference count.
CosEventComm::PullConsumer_var | consumer_
| The consumer....
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 MANAGMENT 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

typedef CosEventChannelAdmin::ProxyPullSupplier_ptr TAO_CEC_ProxyPullSupplier::_ptr_type

typedef CosEventChannelAdmin::ProxyPullSupplier_var TAO_CEC_ProxyPullSupplier::_var_type

## Constructor & Destructor Documentation

TAO_CEC_ProxyPullSupplier::TAO_CEC_ProxyPullSupplier | ( | TAO_CEC_EventChannel * | event_channel | ) |

| constructor...

TAO_CEC_ProxyPullSupplier::~TAO_CEC_ProxyPullSupplier | ( | void |  | ) | `[virtual]`

| destructor...

## Member Function Documentation

void TAO_CEC_ProxyPullSupplier::_add_ref | ( | ACE_ENV_SINGLE_ARG_DECL |  | ) | `[virtual]`

CORBA::ULong TAO_CEC_ProxyPullSupplier::_decr_refcnt | ( | void |  | ) |

PortableServer::POA_ptr TAO_CEC_ProxyPullSupplier::_default_POA | ( | ACE_ENV_SINGLE_ARG_DECL |  | ) | `[virtual]`

CORBA::ULong TAO_CEC_ProxyPullSupplier::_incr_refcnt | ( | void |  | ) |

| Increment and decrement the reference count.

void TAO_CEC_ProxyPullSupplier::_remove_ref | ( | ACE_ENV_SINGLE_ARG_DECL |  | ) | `[virtual]`

void TAO_CEC_ProxyPullSupplier::activate | ( | CosEventChannelAdmin::ProxyPullSupplier_ptr &activated_proxy | ACE_ENV_ARG_DECL | ) | throw (CORBA::SystemException)`[virtual]`

| Activate in the POA.

void TAO_CEC_ProxyPullSupplier::cleanup_i | ( | void |  | ) | `[protected]`

| Release the child and the consumer.

void TAO_CEC_ProxyPullSupplier::connect_pull_consumer | ( | CosEventComm::PullConsumer_ptr pull_consumer | ACE_ENV_ARG_DECL_NOT_USED | ) | throw (CORBA::SystemException, CosEventChannelAdmin::AlreadyConnected)`[virtual]`

ACE_INLINE 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.

ACE_INLINE CosEventComm::PullConsumer_ptr TAO_CEC_ProxyPullSupplier::consumer | ( | void |  | ) | 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.

ACE_INLINE void TAO_CEC_ProxyPullSupplier::consumer_i | ( | CosEventComm::PullConsumer_ptr | consumer | ) | `[protected]`

CORBA::Boolean TAO_CEC_ProxyPullSupplier::consumer_non_existent | ( | CORBA::Boolean_out disconnected | ACE_ENV_ARG_DECL | ) |

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

void TAO_CEC_ProxyPullSupplier::deactivate | ( | ACE_ENV_SINGLE_ARG_DECL |  | ) | throw (CORBA::SystemException)`[virtual]`

| Deactivate from the POA.

void TAO_CEC_ProxyPullSupplier::disconnect_pull_supplier | ( | ACE_ENV_SINGLE_ARG_DECL_NOT_USED |  | ) | throw (CORBA::SystemException)`[virtual]`

ACE_INLINE CORBA::Boolean TAO_CEC_ProxyPullSupplier::is_connected | ( | void |  | ) | const

| Return 0 if no consumer is connected...

ACE_INLINE CORBA::Boolean TAO_CEC_ProxyPullSupplier::is_connected_i | ( | void |  | ) | const`[protected]`

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

CORBA::Any * TAO_CEC_ProxyPullSupplier::pull | ( | ACE_ENV_SINGLE_ARG_DECL_NOT_USED |  | ) | throw (CORBA::SystemException,CosEventComm::Disconnected)`[virtual]`

void TAO_CEC_ProxyPullSupplier::push | ( | const CORBA::Any &event | ACE_ENV_ARG_DECL | ) |

| Push an event into the queue.

void TAO_CEC_ProxyPullSupplier::shutdown | ( | ACE_ENV_SINGLE_ARG_DECL |  | ) | `[virtual]`

| The event channel is shutting down.

CORBA::Any * TAO_CEC_ProxyPullSupplier::try_pull | ( | CORBA::Boolean_out has_event | ACE_ENV_ARG_DECL_NOT_USED | ) | throw (CORBA::SystemException,CosEventComm::Disconnected)`[virtual]`

## Member Data Documentation

int TAO_CEC_ProxyPullSupplier::connected_`[private]`

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

CosEventComm::PullConsumer_var TAO_CEC_ProxyPullSupplier::consumer_`[private]`

| The consumer....

PortableServer::POA_var TAO_CEC_ProxyPullSupplier::default_POA_`[private]`

| Store the default POA.

TAO_CEC_EventChannel* TAO_CEC_ProxyPullSupplier::event_channel_`[private]`

| The Event Channel that owns this object.

ACE_Lock* TAO_CEC_ProxyPullSupplier::lock_`[private]`

| The locking strategy.

ACE_Unbounded_Queue<CORBA::Any> TAO_CEC_ProxyPullSupplier::queue_`[private]`

TAO_SYNCH_MUTEX TAO_CEC_ProxyPullSupplier::queue_lock_`[private]`

| Use a message queue to pass the.

CORBA::ULong TAO_CEC_ProxyPullSupplier::refcount_`[private]`

| The reference count.

TAO_SYNCH_CONDITION TAO_CEC_ProxyPullSupplier::wait_not_empty_`[private]`

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

- CEC_ProxyPullSupplier.h
- CEC_ProxyPullSupplier.cpp
- CEC_ProxyPullSupplier.i