ACE  6.1.0
Public Member Functions
ACE_Reactor_Notify Class Reference

Abstract class for unblocking an ACE_Reactor_Impl from its event loop. More...

#include <Reactor_Impl.h>

Inheritance diagram for ACE_Reactor_Notify:
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Collaboration diagram for ACE_Reactor_Notify:
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List of all members.

Public Member Functions

virtual int open (ACE_Reactor_Impl *, ACE_Timer_Queue *timer_queue=0, int disable_notify=0)=0
virtual int close (void)=0
virtual int notify (ACE_Event_Handler *eh=0, ACE_Reactor_Mask mask=ACE_Event_Handler::EXCEPT_MASK, ACE_Time_Value *timeout=0)=0
virtual int dispatch_notifications (int &number_of_active_handles, ACE_Handle_Set &rd_mask)=0
virtual ACE_HANDLE notify_handle (void)=0
virtual int is_dispatchable (ACE_Notification_Buffer &buffer)=0
 Verify whether the buffer has dispatchable info or not.
virtual int dispatch_notify (ACE_Notification_Buffer &buffer)=0
virtual int read_notify_pipe (ACE_HANDLE handle, ACE_Notification_Buffer &buffer)=0
virtual void max_notify_iterations (int)=0
virtual int max_notify_iterations (void)=0
virtual int purge_pending_notifications (ACE_Event_Handler *=0, ACE_Reactor_Mask=ACE_Event_Handler::ALL_EVENTS_MASK)=0
virtual void dump (void) const =0
 Dump the state of an object.

Detailed Description

Abstract class for unblocking an ACE_Reactor_Impl from its event loop.

This class is for ACE internal use only.


Member Function Documentation

virtual int ACE_Reactor_Notify::close ( void  ) [pure virtual]
virtual int ACE_Reactor_Notify::dispatch_notifications ( int &  number_of_active_handles,
ACE_Handle_Set rd_mask 
) [pure virtual]

Handles pending threads (if any) that are waiting to unblock the <Reactor_Impl>.

Implemented in ACE_WFMO_Reactor_Notify, ACE_Select_Reactor_Notify, and ACE_Dev_Poll_Reactor_Notify.

virtual int ACE_Reactor_Notify::dispatch_notify ( ACE_Notification_Buffer buffer) [pure virtual]

Handle one of the notify call on the <handle>. This could be because of a thread trying to unblock the <Reactor_Impl>

Implemented in ACE_WFMO_Reactor_Notify, ACE_Select_Reactor_Notify, and ACE_Dev_Poll_Reactor_Notify.

virtual void ACE_Reactor_Notify::dump ( void  ) const [pure virtual]

Dump the state of an object.

Implemented in ACE_WFMO_Reactor_Notify, ACE_Select_Reactor_Notify, and ACE_Dev_Poll_Reactor_Notify.

virtual int ACE_Reactor_Notify::is_dispatchable ( ACE_Notification_Buffer buffer) [pure virtual]

Verify whether the buffer has dispatchable info or not.

Implemented in ACE_WFMO_Reactor_Notify, ACE_Select_Reactor_Notify, and ACE_Dev_Poll_Reactor_Notify.

virtual void ACE_Reactor_Notify::max_notify_iterations ( int  ) [pure virtual]

Set the maximum number of times that the <handle_input> method will iterate and dispatch the ACE_Event_Handlers that are passed in via the notify queue before breaking out of the event loop. By default, this is set to -1, which means "iterate until the queue is empty." Setting this to a value like "1 or 2" will increase "fairness" (and thus prevent starvation) at the expense of slightly higher dispatching overhead.

Implemented in ACE_WFMO_Reactor_Notify, ACE_Select_Reactor_Notify, and ACE_Dev_Poll_Reactor_Notify.

virtual int ACE_Reactor_Notify::max_notify_iterations ( void  ) [pure virtual]

Get the maximum number of times that the <handle_input> method will iterate and dispatch the ACE_Event_Handlers that are passed in via the notify queue before breaking out of its event loop.

Implemented in ACE_WFMO_Reactor_Notify, ACE_Select_Reactor_Notify, and ACE_Dev_Poll_Reactor_Notify.

virtual int ACE_Reactor_Notify::notify ( ACE_Event_Handler eh = 0,
ACE_Reactor_Mask  mask = ACE_Event_Handler::EXCEPT_MASK,
ACE_Time_Value timeout = 0 
) [pure virtual]

Called by a thread when it wants to unblock the <Reactor_Impl>. This wakeups the <Reactor_Impl> if currently blocked. Pass over both the <Event_Handler> *and* the mask to allow the caller to dictate which <Event_Handler> method the <Reactor_Impl> will invoke. The ACE_Time_Value indicates how long to blocking trying to notify the <Reactor_Impl>. If timeout == 0, the caller will block until action is possible, else will wait until the relative time specified in *timeout elapses).

Implemented in ACE_WFMO_Reactor_Notify, ACE_Select_Reactor_Notify, and ACE_Dev_Poll_Reactor_Notify.

virtual ACE_HANDLE ACE_Reactor_Notify::notify_handle ( void  ) [pure virtual]

Returns the ACE_HANDLE of the notify pipe on which the reactor is listening for notifications so that other threads can unblock the <Reactor_Impl>

Implemented in ACE_WFMO_Reactor_Notify, ACE_Select_Reactor_Notify, and ACE_Dev_Poll_Reactor_Notify.

virtual int ACE_Reactor_Notify::open ( ACE_Reactor_Impl ,
ACE_Timer_Queue timer_queue = 0,
int  disable_notify = 0 
) [pure virtual]
virtual int ACE_Reactor_Notify::purge_pending_notifications ( ACE_Event_Handler = 0,
ACE_Reactor_Mask  = ACE_Event_Handler::ALL_EVENTS_MASK 
) [pure virtual]

Purge any notifications pending in this reactor for the specified ACE_Event_Handler object. Returns the number of notifications purged. Returns -1 on error.

Implemented in ACE_WFMO_Reactor_Notify, ACE_Select_Reactor_Notify, and ACE_Dev_Poll_Reactor_Notify.

virtual int ACE_Reactor_Notify::read_notify_pipe ( ACE_HANDLE  handle,
ACE_Notification_Buffer buffer 
) [pure virtual]

Read one of the notify call on the handle into the buffer. This could be because of a thread trying to unblock the <Reactor_Impl>

Implemented in ACE_WFMO_Reactor_Notify, ACE_Select_Reactor_Notify, and ACE_Dev_Poll_Reactor_Notify.


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