TAO_EC_Timeout_Filter Class Reference

A filter based on event type/source. More...

#include <EC_Timeout_Filter.h>

Inheritance diagram for TAO_EC_Timeout_Filter:

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Collaboration diagram for TAO_EC_Timeout_Filter:

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List of all members.

Public Member Functions

 TAO_EC_Timeout_Filter (TAO_EC_Event_Channel_Base *event_channel, TAO_EC_ProxyPushSupplier *supplier, const TAO_EC_QOS_Info &qos_info, RtecEventComm::EventType type, RtecEventComm::Time period)
 Constructor.
virtual ~TAO_EC_Timeout_Filter (void)
 Destructor.
const TAO_EC_QOS_Infoqos_info (void) const
 Return the QOS_Info for this Timeout filter.
RtecEventComm::EventType type (void) const
 The type of timeout event that we generate.
void push_to_proxy (const RtecEventComm::EventSet &event, TAO_EC_QOS_Info &qos_info ACE_ENV_ARG_DECL)
 Callback from the Timeout_Generator.
virtual int filter (const RtecEventComm::EventSet &event, TAO_EC_QOS_Info &qos_info ACE_ENV_ARG_DECL)
virtual int filter_nocopy (RtecEventComm::EventSet &event, TAO_EC_QOS_Info &qos_info ACE_ENV_ARG_DECL)
virtual void push (const RtecEventComm::EventSet &event, TAO_EC_QOS_Info &qos_info ACE_ENV_ARG_DECL)
virtual void push_nocopy (RtecEventComm::EventSet &event, TAO_EC_QOS_Info &qos_info ACE_ENV_ARG_DECL)
virtual void clear (void)
virtual CORBA::ULong max_event_size (void) const
 Returns the maximum size of the events pushed by this filter.
virtual int can_match (const RtecEventComm::EventHeader &header) const
virtual int add_dependencies (const RtecEventComm::EventHeader &header, const TAO_EC_QOS_Info &qos_info ACE_ENV_ARG_DECL)

Private Member Functions

 ACE_UNIMPLEMENTED_FUNC (TAO_EC_Timeout_Filter(const TAO_EC_Timeout_Filter &)) ACE_UNIMPLEMENTED_FUNC(TAO_EC_Timeout_Filter &operator

Private Attributes

TAO_EC_ProxyPushSuppliersupplier_
 The supplier that finally receives the timeout event.
TAO_EC_QOS_Info qos_info_
 Events "generated" by this filter use this QOS_Info.
RtecEventComm::EventType type_
 The type of timeout event...
RtecEventComm::Time period_
 The period for deadline timeouts...
long id_

Detailed Description

A filter based on event type/source.

This filter only accept events with a predefined type/source, both the source and the type can be wildcards.


Constructor & Destructor Documentation

TAO_EC_Timeout_Filter::TAO_EC_Timeout_Filter TAO_EC_Event_Channel_Base event_channel,
TAO_EC_ProxyPushSupplier supplier,
const TAO_EC_QOS_Info qos_info,
RtecEventComm::EventType  type,
RtecEventComm::Time  period
 

Constructor.

TAO_EC_Timeout_Filter::~TAO_EC_Timeout_Filter void   )  [virtual]
 

Destructor.


Member Function Documentation

TAO_EC_Timeout_Filter::ACE_UNIMPLEMENTED_FUNC TAO_EC_Timeout_Filter(const TAO_EC_Timeout_Filter &)   )  [private]
 

virtual int TAO_EC_Timeout_Filter::add_dependencies const RtecEventComm::EventHeader header,
const TAO_EC_QOS_Info &qos_info  ACE_ENV_ARG_DECL
[virtual]
 

This is used for computing the scheduling dependencies:

Leaf filters check if the header could be matched, similar to the can_match() method; if it does they return 1, and 0 otherwise. Intermediate nodes always return 0.

This is used to build precise dependencies between the suppliers and the leaf of the filters that accept that event. Notice that only the nodes doing scheduling recurse through the list, so in configurations that do no require scheduling the recursion stops fairly soon.

Implements TAO_EC_Filter.

int TAO_EC_Timeout_Filter::can_match const RtecEventComm::EventHeader header  )  const [virtual]
 

Returns 0 if an event with that header could never be accepted. This can used by the suppliers to filter out consumers that couldn't possibly be interested in their events. The rt_info and

Implements TAO_EC_Filter.

void TAO_EC_Timeout_Filter::clear void   )  [virtual]
 

Clear any saved state, must reset and assume no events have been received.

Implements TAO_EC_Filter.

int TAO_EC_Timeout_Filter::filter const RtecEventComm::EventSet event,
TAO_EC_QOS_Info &qos_info  ACE_ENV_ARG_DECL
[virtual]
 

Filter this event, returns 1 if the event is accepted, 0 otherwise. Notice that there are two versions of the method, if the event is not const then filter can take ownership of the event.

Attention:
There seems to be a disparity in interfaces: Supplier always push event sets of size 1 to the EC_ProxyPushSupplier, and EC_Filters do not implement handling of sets of more than 1 event. Then, why is this not enforced by the interface by having EC_ProxyPushSupplier take an event rather than a set?

Implements TAO_EC_Filter.

int TAO_EC_Timeout_Filter::filter_nocopy RtecEventComm::EventSet event,
TAO_EC_QOS_Info &qos_info  ACE_ENV_ARG_DECL
[virtual]
 

Implements TAO_EC_Filter.

CORBA::ULong TAO_EC_Timeout_Filter::max_event_size void   )  const [virtual]
 

Returns the maximum size of the events pushed by this filter.

Implements TAO_EC_Filter.

virtual void TAO_EC_Timeout_Filter::push const RtecEventComm::EventSet event,
TAO_EC_QOS_Info &qos_info  ACE_ENV_ARG_DECL
[virtual]
 

This is called by the children when they accept an event and which to pass it up. Notice that there are two versions of the method, if the event is not const then filter can take ownership of the event.

Implements TAO_EC_Filter.

virtual void TAO_EC_Timeout_Filter::push_nocopy RtecEventComm::EventSet event,
TAO_EC_QOS_Info &qos_info  ACE_ENV_ARG_DECL
[virtual]
 

Implements TAO_EC_Filter.

void TAO_EC_Timeout_Filter::push_to_proxy const RtecEventComm::EventSet event,
TAO_EC_QOS_Info &qos_info  ACE_ENV_ARG_DECL
 

Callback from the Timeout_Generator.

ACE_INLINE const TAO_EC_QOS_Info & TAO_EC_Timeout_Filter::qos_info void   )  const
 

Return the QOS_Info for this Timeout filter.

ACE_INLINE RtecEventComm::EventType TAO_EC_Timeout_Filter::type void   )  const
 

The type of timeout event that we generate.


Member Data Documentation

long TAO_EC_Timeout_Filter::id_ [private]
 

The ID of the timeout in the Timeout_Generator, for cancellation.

RtecEventComm::Time TAO_EC_Timeout_Filter::period_ [private]
 

The period for deadline timeouts...

TAO_EC_QOS_Info TAO_EC_Timeout_Filter::qos_info_ [private]
 

Events "generated" by this filter use this QOS_Info.

TAO_EC_ProxyPushSupplier* TAO_EC_Timeout_Filter::supplier_ [private]
 

The supplier that finally receives the timeout event.

RtecEventComm::EventType TAO_EC_Timeout_Filter::type_ [private]
 

The type of timeout event...


The documentation for this class was generated from the following files:
Generated on Wed Nov 23 16:19:05 2005 for TAO_RTEvent by  doxygen 1.4.5