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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 Methods

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 *=0, ACE_Reactor_Mask=ACE_Event_Handler::EXCEPT_MASK, ACE_Time_Value *=0)=0
virtual int dispatch_notifications (int &number_of_active_handles, ACE_Handle_Set &rd_mask)=0
 Handles pending threads (if any) that are waiting to unblock the <Reactor_Impl>. More...

virtual ACE_HANDLE notify_handle (void)=0
 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>. More...

virtual int is_dispatchable (ACE_Notification_Buffer &buffer)=0
 Verify whether the buffer has dispatchable info or not. More...

virtual int dispatch_notify (ACE_Notification_Buffer &buffer)=0
 Handle one of the notify call on the <handle>. This could be because of a thread trying to unblock the <Reactor_Impl>. More...

virtual int read_notify_pipe (ACE_HANDLE handle, ACE_Notification_Buffer &buffer)=0
 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>. More...

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. More...


Detailed Description

Abstract class for unblocking an <ACE_Reactor_Impl> from its event loop.

Definition at line 44 of file Reactor_Impl.h.


Member Function Documentation

virtual int ACE_Reactor_Notify::close void    [pure virtual]
 

Implemented in ACE_Dev_Poll_Reactor_Notify.

Referenced by ACE_FlReactor::ACE_FlReactor, ACE_QtReactor::ACE_QtReactor, ACE_TkReactor::ACE_TkReactor, ACE_XtReactor::ACE_XtReactor, ACE_Select_Reactor_T::close, and ACE_Dev_Poll_Reactor::close.

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_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_Dev_Poll_Reactor_Notify.

Referenced by ACE_TP_Reactor::handle_notify_events.

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

Dump the state of an object.

Implemented in ACE_Dev_Poll_Reactor_Notify.

Referenced by ACE_Select_Reactor_T::dump.

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_Dev_Poll_Reactor_Notify.

Referenced by ACE_TP_Reactor::handle_notify_events.

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_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_Dev_Poll_Reactor_Notify.

Referenced by ACE_WFMO_Reactor::max_notify_iterations, ACE_Select_Reactor_T::max_notify_iterations, and ACE_Dev_Poll_Reactor::max_notify_iterations.

virtual int ACE_Reactor_Notify::notify ACE_Event_Handler   = 0,
ACE_Reactor_Mask    = ACE_Event_Handler::EXCEPT_MASK,
ACE_Time_Value   = 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_Dev_Poll_Reactor_Notify.

Referenced by ACE_WFMO_Reactor::notify, ACE_Select_Reactor_T::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_Dev_Poll_Reactor_Notify.

Referenced by ACE_TP_Reactor::get_notify_handle.

virtual int ACE_Reactor_Notify::open ACE_Reactor_Impl  ,
ACE_Timer_Queue   timer_queue = 0,
int    disable_notify = 0
[pure virtual]
 

Implemented in ACE_Dev_Poll_Reactor_Notify.

Referenced by ACE_FlReactor::ACE_FlReactor, ACE_QtReactor::ACE_QtReactor, ACE_TkReactor::ACE_TkReactor, ACE_XtReactor::ACE_XtReactor, ACE_WFMO_Reactor::open, and ACE_Dev_Poll_Reactor::open.

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_Dev_Poll_Reactor_Notify.

Referenced by ACE_WFMO_Reactor::purge_pending_notifications, ACE_Select_Reactor_Impl::purge_pending_notifications, and ACE_Dev_Poll_Reactor::purge_pending_notifications.

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_Dev_Poll_Reactor_Notify.

Referenced by ACE_TP_Reactor::handle_notify_events.


The documentation for this class was generated from the following file:
Generated on Mon Jun 16 12:54:54 2003 for ACE by doxygen1.2.14 written by Dimitri van Heesch, © 1997-2002