#include <Dev_Poll_Reactor.h>
Inheritance diagram for ACE_Dev_Poll_Reactor_Notify:
Initialization and Termination Methods | |
| Methods called when initializing and terminating this event handler. | |
| virtual int | open (ACE_Reactor_Impl *, ACE_Timer_Queue *timer_queue=0, int disable_notify=0) |
| virtual int | close (void) |
| virtual int | notify (ACE_Event_Handler *eh=0, ACE_Reactor_Mask mask=ACE_Event_Handler::EXCEPT_MASK, ACE_Time_Value *timeout=0) |
| virtual int | dispatch_notifications (int &number_of_active_handles, ACE_Handle_Set &rd_mask) |
| virtual ACE_HANDLE | notify_handle (void) |
| virtual int | is_dispatchable (ACE_Notification_Buffer &buffer) |
| Verify whether the buffer has dispatchable info or not. | |
| virtual int | dispatch_notify (ACE_Notification_Buffer &buffer) |
| virtual int | read_notify_pipe (ACE_HANDLE handle, ACE_Notification_Buffer &buffer) |
| virtual int | handle_input (ACE_HANDLE handle) |
| virtual void | max_notify_iterations (int) |
| virtual int | max_notify_iterations (void) |
| virtual int | purge_pending_notifications (ACE_Event_Handler *=0, ACE_Reactor_Mask=ACE_Event_Handler::ALL_EVENTS_MASK) |
| virtual void | dump (void) const |
| Dump the state of an object. | |
| ACE_Dev_Poll_Reactor * | dp_reactor_ |
| ACE_Pipe | notification_pipe_ |
| int | max_notify_iterations_ |
Public Member Functions | |
| ACE_Dev_Poll_Reactor_Notify (void) | |
| Constructor. | |
This event handler is used internally by the ACE_Dev_Poll_Reactor as a means to allow a thread other then the one running the event loop to unblock the event loop.
| ACE_BEGIN_VERSIONED_NAMESPACE_DECL ACE_Dev_Poll_Reactor_Notify::ACE_Dev_Poll_Reactor_Notify | ( | void | ) |
Constructor.
| int ACE_Dev_Poll_Reactor_Notify::close | ( | void | ) | [virtual] |
Implements ACE_Reactor_Notify.
| int ACE_Dev_Poll_Reactor_Notify::dispatch_notifications | ( | int & | number_of_active_handles, | |
| ACE_Handle_Set & | rd_mask | |||
| ) | [virtual] |
This method's interface is not very compatibile with this Reactor's design. It's not clear why this method is pure virtual either.
Implements ACE_Reactor_Notify.
| int ACE_Dev_Poll_Reactor_Notify::dispatch_notify | ( | ACE_Notification_Buffer & | buffer | ) | [virtual] |
Handle one notify call represented in buffer. This could be because of a thread trying to unblock the Reactor_Impl.
Implements ACE_Reactor_Notify.
| void ACE_Dev_Poll_Reactor_Notify::dump | ( | void | ) | const [virtual] |
| int ACE_Dev_Poll_Reactor_Notify::handle_input | ( | ACE_HANDLE | handle | ) | [virtual] |
Called back by the ACE_Dev_Poll_Reactor when a thread wants to unblock us.
Reimplemented from ACE_Event_Handler.
| int ACE_Dev_Poll_Reactor_Notify::is_dispatchable | ( | ACE_Notification_Buffer & | buffer | ) | [virtual] |
| int ACE_Dev_Poll_Reactor_Notify::max_notify_iterations | ( | void | ) | [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.
Implements ACE_Reactor_Notify.
| void ACE_Dev_Poll_Reactor_Notify::max_notify_iterations | ( | int | ) | [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.
Implements ACE_Reactor_Notify.
| int ACE_Dev_Poll_Reactor_Notify::notify | ( | ACE_Event_Handler * | eh = 0, |
|
| ACE_Reactor_Mask | mask = ACE_Event_Handler::EXCEPT_MASK, |
|||
| ACE_Time_Value * | timeout = 0 | |||
| ) | [virtual] |
Called by a thread when it wants to unblock the Reactor_Impl. This wakes up 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 block 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).
Implements ACE_Reactor_Notify.
| ACE_HANDLE ACE_Dev_Poll_Reactor_Notify::notify_handle | ( | void | ) | [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.
Implements ACE_Reactor_Notify.
| int ACE_Dev_Poll_Reactor_Notify::open | ( | ACE_Reactor_Impl * | , | |
| ACE_Timer_Queue * | timer_queue = 0, |
|||
| int | disable_notify = 0 | |||
| ) | [virtual] |
Implements ACE_Reactor_Notify.
| int ACE_Dev_Poll_Reactor_Notify::purge_pending_notifications | ( | ACE_Event_Handler * | = 0, |
|
| ACE_Reactor_Mask | = ACE_Event_Handler::ALL_EVENTS_MASK | |||
| ) | [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.
Implements ACE_Reactor_Notify.
| int ACE_Dev_Poll_Reactor_Notify::read_notify_pipe | ( | ACE_HANDLE | handle, | |
| ACE_Notification_Buffer & | buffer | |||
| ) | [virtual] |
Read one notify call on the handle into buffer. This could be because of a thread trying to unblock the Reactor_Impl.
Implements ACE_Reactor_Notify.
Keep a back pointer to the ACE_Dev_Poll_Reactor. If this value if NULL then the ACE_Dev_Poll_Reactor has been initialized with disable_notify_pipe.
int ACE_Dev_Poll_Reactor_Notify::max_notify_iterations_ [protected] |
Keeps track of the maximum number of times that the ACE_Dev_Poll_Reactor_Notify::handle_input method will iterate and dispatch the ACE_Event_Handlers that are passed in via the notify pipe before breaking out of its recv loop. By default, this is set to -1, which means "iterate until the pipe is empty."
Contains the ACE_HANDLE the ACE_Dev_Poll_Reactor is listening on, as well as the ACE_HANDLE that threads wanting the attention of the ACE_Dev_Poll_Reactor will write to.
1.4.7-1