event::Channel Interface Reference

Event Channel. More...

Classes
struct	EventSelect
	Structure to select an Event *. More...

Public Member Functions
void	demandEventType (in typecode type)
	Subscribe for events of a given type. More...
void	cancelEventType (in typecode type)
	Cancel the subscription for events of a given type. More...
void	demandEventTypes (in vector< typecode > types)
	Subscribe for multiple event types at once. More...
void	cancelEventTypes (in vector< typecode > types)
	Cancel subscription for events that are of any of given types. More...
void	demandEvent (in typecode type, in Object src)
	Subscribe for events that are of given type and emitted by a specific object instance. More...
void	cancelEvent (in typecode type, in Object src)
	Cancel the subscription for events that are of given type and emitted by a specific object instance. More...
void	demandEvents (in vector< EventSelect > events)
	Subscribe for multiple specific events at once. More...
void	cancelEvents (in vector< EventSelect > events)
	Cancel the subscription for multiple specific events. More...
boolean	pollEvents (out vector< idl::Event > events)
	Poll for new events blockingly. More...
boolean	pollEventsNb (out vector< idl::Event > events)
	Poll for new events non-blockingly. More...

Detailed Description

Event Channel.

Member Function Documentation

cancelEvent()

void event::Channel::cancelEvent	(	in typecode	type,
		in Object	src
	)

Cancel the subscription for events that are of given type and emitted by a specific object instance.

Parameters

evttype	Event typecode
src	Event source instance

cancelEvents()

void event::Channel::cancelEvents

(

in vector< EventSelect >

events

)

Cancel the subscription for multiple specific events.

Parameters

events

List of typecodes to unsubscribe from

cancelEventType()

void event::Channel::cancelEventType

(

in typecode

type

)

Cancel the subscription for events of a given type.

Parameters

evttype

typecode of valueobject of demanded event

cancelEventTypes()

void event::Channel::cancelEventTypes

(

in vector< typecode >

types

)

Cancel subscription for events that are of any of given types.

Parameters

evttypes

List of event typecodes

demandEvent()

void event::Channel::demandEvent	(	in typecode	type,
		in Object	src
	)

Subscribe for events that are of given type and emitted by a specific object instance.

Parameters

evttype	Event typecode
src	Event source instance

demandEvents()

void event::Channel::demandEvents

(

in vector< EventSelect >

events

)

Subscribe for multiple specific events at once.

Parameters

events

List of typecodes to subscribe for

demandEventType()

void event::Channel::demandEventType

(

in typecode

type

)

Subscribe for events of a given type.

Parameters

evttype

typecode of valueobject of demanded event

demandEventTypes()

void event::Channel::demandEventTypes

(

in vector< typecode >

types

)

Subscribe for multiple event types at once.

Parameters

evttypes

List of event typecodes

pollEvents()

boolean event::Channel::pollEvents

(

out vector< idl::Event >

events

)

Poll for new events blockingly.

This method will block in case the queue is empty. It will return as soon as at least one event is available, or after a maximum wait time of 30 seconds.

The method will not return more than an implementation-defined maximum number of events. The boolean return value indicates whether there are more events in the queue.

Parameters

events

List of new events

Returns

true if there are more events in the queue false if the queue is empty

pollEventsNb()

boolean event::Channel::pollEventsNb

(

out vector< idl::Event >

events

)

Poll for new events non-blockingly.

The method will not return more than an implementation-defined maximum number of events. The boolean return value indicates whether there are more events in the queue.

Parameters

events

List of new events

Returns

true if there are more events in the queue false if the queue is empty

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The documentation for this interface was generated from the following file:

• EventService.idl