ACE_Dev_Poll_Event_Tuple Class Reference

Class that associates specific event mask with a given event handler. More...

#include <Dev_Poll_Reactor.h>

Collaboration diagram for ACE_Dev_Poll_Event_Tuple:

Collaboration graph
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List of all members.

Public Member Functions

 ACE_Dev_Poll_Event_Tuple (void)
 Constructor.

Public Attributes

ACE_Event_Handlerevent_handler
 The event handler.
ACE_Reactor_Mask mask
 The event mask for the above event handler.
char suspended
 Flag that states whether or not the event handler is suspended.
unsigned long refcount

Detailed Description

Class that associates specific event mask with a given event handler.

This class merely provides a means to associate an event mask with an event handler. Such an association is needed since it is not possible to retrieve the event mask from the "interest set" stored in the `/dev/poll' or `/dev/epoll' driver. Without this external association, it would not be possible keep track of the event mask for a given event handler when suspending it or resuming it.

Note:
An ACE_Handle_Set is not used since the number of handles may exceed its capacity (ACE_DEFAULT_SELECT_REACTOR_SIZE).


Constructor & Destructor Documentation

ACE_INLINE ACE_Dev_Poll_Event_Tuple::ACE_Dev_Poll_Event_Tuple void   ) 
 

Constructor.


Member Data Documentation

ACE_Event_Handler* ACE_Dev_Poll_Event_Tuple::event_handler
 

The event handler.

ACE_Reactor_Mask ACE_Dev_Poll_Event_Tuple::mask
 

The event mask for the above event handler.

unsigned long ACE_Dev_Poll_Event_Tuple::refcount
 

Todo:
The reference count should really be maintained within the event handler. This approach was taken to allow for backward compatibility and quick implementation. One approach for maintaining backward compatibility while implementing reference counting within the event handler is to create an ACE_Ref_Counted_Event_Handler "mix-in" class that concrete ACE_Event_Handlers can inherit from (i.e. multiple inheritance). Thus, legacy non-reference counted event handlers need not pay for reference counting resources.

char ACE_Dev_Poll_Event_Tuple::suspended
 

Flag that states whether or not the event handler is suspended.


The documentation for this class was generated from the following files:
Generated on Wed Nov 23 15:48:25 2005 for ACE by  doxygen 1.4.5