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# ACE_Reactor Class Reference

The responsibility of this class is to forward all methods to its delegation/implementation class, e.g., <ACE_Select_Reactor> or <ACE_WFMO_Reactor>. More...

`#include <Reactor.h>`

Collaboration diagram for ACE_Reactor:

[legend]
List of all members.

## Public Types
typedef int(* | REACTOR_EVENT_HOOK )(ACE_Reactor *)
enum | { GET_MASK = 1, SET_MASK = 2, ADD_MASK = 3, CLR_MASK = 4 }
| Operations on the "ready" mask and the "dispatch" mask. More...
## Public Methods
virtual int | run_reactor_event_loop (REACTOR_EVENT_HOOK=0)
virtual int | run_alertable_reactor_event_loop (REACTOR_EVENT_HOOK=0)
virtual int | run_reactor_event_loop (ACE_Time_Value &tv, REACTOR_EVENT_HOOK=0)
virtual int | run_alertable_reactor_event_loop (ACE_Time_Value &tv, REACTOR_EVENT_HOOK=0)
virtual int | end_reactor_event_loop (void)
virtual int | reactor_event_loop_done (void)
| Indicate if the Reactor's event loop has been ended. More...
virtual void | reset_reactor_event_loop (void)
| Resets the <ACE_Reactor::end_event_loop_> static so that the <run_event_loop> method can be restarted. More...
| ACE_Reactor (ACE_Reactor_Impl *implementation=0, int delete_implementation=0)
virtual | ~ACE_Reactor (void)
| Close down and release all resources. More...
virtual int | open (size_t max_number_of_handles, int restart=0, ACE_Sig_Handler *signal_handler=0, ACE_Timer_Queue *timer_queue=0)
virtual int | set_sig_handler (ACE_Sig_Handler *signal_handler)
| Use a user specified signal handler instead. More...
virtual int | set_timer_queue (ACE_Timer_Queue *tq)
| Deprecated: Use <timer_queue> instead. Set a user specified timer queue. More...
virtual int | timer_queue (ACE_Timer_Queue *tq)
| Set a user-specified timer queue. More...
virtual ACE_Timer_Queue * | timer_queue (void) const
| Return the current <ACE_Timer_Queue>. More...
virtual int | close (void)
| Close down and release all resources. More...
virtual int | work_pending (const ACE_Time_Value &max_wait_time=ACE_Time_Value::zero)
virtual int | handle_events (ACE_Time_Value *max_wait_time=0)
virtual int | alertable_handle_events (ACE_Time_Value *max_wait_time=0)
virtual int | handle_events (ACE_Time_Value &max_wait_time)
virtual int | alertable_handle_events (ACE_Time_Value &max_wait_time)
virtual int | register_handler (ACE_Event_Handler *event_handler, ACE_Reactor_Mask mask)
| Register <event_handler> with <mask>. The I/O handle will always come from <get_handle> on the <event_handler>. More...
virtual int | register_handler (ACE_HANDLE io_handle, ACE_Event_Handler *event_handler, ACE_Reactor_Mask mask)
| Register <event_handler> with <mask>. The I/O handle is provided through the <io_handle> parameter. More...
virtual int | register_handler (ACE_Event_Handler *event_handler, ACE_HANDLE event_handle=ACE_INVALID_HANDLE)
virtual int | register_handler (ACE_HANDLE event_handle, ACE_HANDLE io_handle, ACE_Event_Handler *event_handler, ACE_Reactor_Mask mask)
virtual int | register_handler (const ACE_Handle_Set &handles, ACE_Event_Handler *event_handler, ACE_Reactor_Mask mask)
| Register <event_handler> with all the <handles> in the <Handle_Set>. More...
virtual int | register_handler (int signum, ACE_Event_Handler *new_sh, ACE_Sig_Action *new_disp=0, ACE_Event_Handler **old_sh=0, ACE_Sig_Action *old_disp=0)
virtual int | register_handler (const ACE_Sig_Set &sigset, ACE_Event_Handler *new_sh, ACE_Sig_Action *new_disp=0)
| Registers <new_sh> to handle a set of signals <sigset> using the <new_disp>. More...
virtual int | remove_handler (ACE_Event_Handler *event_handler, ACE_Reactor_Mask mask)
virtual int | remove_handler (ACE_HANDLE handle, ACE_Reactor_Mask mask)
virtual int | remove_handler (const ACE_Handle_Set &handle_set, ACE_Reactor_Mask mask)
virtual int | remove_handler (int signum, ACE_Sig_Action *new_disp, ACE_Sig_Action *old_disp=0, int sigkey=-1)
virtual int | remove_handler (const ACE_Sig_Set &sigset)
| Calls <remove_handler> for every signal in <sigset>. More...
virtual int | suspend_handler (ACE_Event_Handler *event_handler)
| Suspend <event_handler> temporarily. Use <ACE_Event_Handler::get_handle> to get the handle. More...
virtual int | suspend_handler (ACE_HANDLE handle)
| Suspend <handle> temporarily. More...
virtual int | suspend_handler (const ACE_Handle_Set &handles)
| Suspend all <handles> in handle set temporarily. More...
virtual int | suspend_handlers (void)
| Suspend all <handles> temporarily. More...
virtual int | resume_handler (ACE_Event_Handler *event_handler)
| Resume <event_handler>. Use <ACE_Event_Handler::get_handle> to get the handle. More...
virtual int | resume_handler (ACE_HANDLE handle)
| Resume <handle>. More...
virtual int | resume_handler (const ACE_Handle_Set &handles)
| Resume all <handles> in handle set. More...
virtual int | resume_handlers (void)
| Resume all <handles>. More...
virtual int | resumable_handler (void)
| Does the reactor allow the application to resume the handle on its own ie. can it pass on the control of handle resumption to the application. A positive value indicates that the handlers are application resumable. A value of 0 indicates otherwise. More...
virtual long | schedule_timer (ACE_Event_Handler *event_handler, const void *arg, const ACE_Time_Value &delay, const ACE_Time_Value &interval=ACE_Time_Value::zero)
virtual int | reset_timer_interval (long timer_id, const ACE_Time_Value &interval)
virtual int | cancel_timer (ACE_Event_Handler *event_handler, int dont_call_handle_close=1)
| Cancel all <Event_Handler>s that match the address of <event_handler>. Returns number of handlers cancelled. More...
virtual int | cancel_timer (long timer_id, const void **arg=0, int dont_call_handle_close=1)
virtual int | schedule_wakeup (ACE_Event_Handler *event_handler, ACE_Reactor_Mask masks_to_be_added)
| Add <masks_to_be_added> to the <event_handler>'s entry. <event_handler> must already have been registered. Note that this call does not cause the Reactor to re-examine its set of handlers - the new masks will be noticed the next time the Reactor waits for activity. If there is no other activity expected, or you need immediate re-examination of the wait masks, either call ACE_Reactor::notify after this call, or use ACE_Reactor::register_handler instead. More...
virtual int | schedule_wakeup (ACE_HANDLE handle, ACE_Reactor_Mask masks_to_be_added)
| Add <masks_to_be_added> to the <handle>'s entry. <event_handler> associated with <handle> must already have been registered. Note that this call does not cause the Reactor to re-examine its set of handlers - the new masks will be noticed the next time the Reactor waits for activity. If there is no other activity expected, or you need immediate re-examination of the wait masks, either call ACE_Reactor::notify after this call, or use ACE_Reactor::register_handler instead. More...
virtual int | cancel_wakeup (ACE_Event_Handler *event_handler, ACE_Reactor_Mask masks_to_be_cleared)
| Clear <masks_to_be_cleared> from the <event_handler>'s entry. Note that this call does not cause the Reactor to re-examine its set of handlers - the new masks will be noticed the next time the Reactor waits for activity. If there is no other activity expected, or you need immediate re-examination of the wait masks, either call ACE_Reactor::notify after this call, or use ACE_Reactor::register_handler instead. More...
virtual int | cancel_wakeup (ACE_HANDLE handle, ACE_Reactor_Mask masks_to_be_cleared)
| Clear <masks_to_be_cleared> from the <handle>'s entry. Note that this call does not cause the Reactor to re-examine its set of handlers - the new masks will be noticed the next time the Reactor waits for activity. If there is no other activity expected, or you need immediate re-examination of the wait masks, either call ACE_Reactor::notify after this call, or use ACE_Reactor::register_handler instead. More...
virtual int | notify (ACE_Event_Handler *event_handler=0, ACE_Reactor_Mask mask=ACE_Event_Handler::EXCEPT_MASK, ACE_Time_Value *tv=0)
virtual void | max_notify_iterations (int iterations)
virtual int | max_notify_iterations (void)
virtual int | purge_pending_notifications (ACE_Event_Handler *, ACE_Reactor_Mask=ACE_Event_Handler::ALL_EVENTS_MASK)
virtual int | handler (ACE_HANDLE handle, ACE_Reactor_Mask mask, ACE_Event_Handler **event_handler=0)
virtual int | handler (int signum, ACE_Event_Handler **event_handler=0)
virtual int | initialized (void)
| Returns true if Reactor has been successfully initialized, else false. More...
virtual size_t | size (void) const
| Returns the current size of the Reactor's internal descriptor table. More...
virtual ACE_Lock & | lock (void)
| Returns a reference to the Reactor's internal lock. More...
virtual void | wakeup_all_threads (void)
| Wake up all threads in waiting in the event loop. More...
virtual int | owner (ACE_thread_t new_owner, ACE_thread_t *old_owner=0)
| Transfers ownership of Reactor to the <new_owner>. More...
virtual int | owner (ACE_thread_t *owner)
| Return the ID of the "owner" thread. More...
virtual void | requeue_position (int position)
| Set position of the owner thread. More...
virtual int | requeue_position (void)
| Get position of the owner thread. More...
virtual int | restart (void)
| Get the existing restart value. More...
virtual int | restart (int r)
| Set a new value for restart and return the original value. More...
virtual int | mask_ops (ACE_Event_Handler *event_handler, ACE_Reactor_Mask mask, int ops)
| GET/SET/ADD/CLR the dispatch mask "bit" bound with the <event_handler> and <mask>. More...
virtual int | mask_ops (ACE_HANDLE handle, ACE_Reactor_Mask mask, int ops)
| GET/SET/ADD/CLR the dispatch MASK "bit" bound with the <handle> and <mask>. More...
virtual int | ready_ops (ACE_Event_Handler *event_handler, ACE_Reactor_Mask mask, int ops)
| GET/SET/ADD/CLR the ready "bit" bound with the <event_handler> and <mask>. More...
virtual int | ready_ops (ACE_HANDLE handle, ACE_Reactor_Mask mask, int ops)
| GET/SET/ADD/CLR the ready "bit" bound with the <handle> and <mask>. More...
virtual ACE_Reactor_Impl * | implementation (void) const
| Get the implementation class. More...
virtual int | current_info (ACE_HANDLE handle, size_t &msg_size)
virtual int | uses_event_associations (void)
| Return 1 if we any event associations were made by the reactor for the handles that it waits on, 0 otherwise. More...
void | dump (void) const
| Dump the state of the object. More...
## Static Public Methods
ACE_Reactor * | instance (void)
| Get pointer to a process-wide <ACE_Reactor>. More...
ACE_Reactor * | instance (ACE_Reactor *, int delete_reactor=0)
void | close_singleton (void)
| Delete the dynamically allocated Singleton. More...
const ACE_TCHAR * | dll_name (void)
| Name of the dll in which the dll lives. More...
const ACE_TCHAR * | name (void)
| Name of the component--ACE_Reactor in this case. More...
int | run_event_loop (void)
int | run_alertable_event_loop (void)
int | run_event_loop (ACE_Time_Value &tv)
int | run_alertable_event_loop (ACE_Time_Value &tv)
int | end_event_loop (void)
int | event_loop_done (void)
void | reset_event_loop (void)
int | check_reconfiguration (ACE_Reactor *)
## Public Attributes
| ACE_ALLOC_HOOK_DECLARE
| Declare the dynamic allocation hooks. More...
## Protected Methods
virtual void | implementation (ACE_Reactor_Impl *implementation)
| Set the implementation class. More...
| ACE_Reactor (const ACE_Reactor &)
| Deny access since member-wise won't work... More...
ACE_Reactor & | operator= (const ACE_Reactor &)
## Protected Attributes
ACE_Reactor_Impl * | implementation_
| Delegation/implementation class that all methods will be forwarded to. More...
int | delete_implementation_
| Flag used to indicate whether we are responsible for cleaning up the implementation instance. More...
## Static Protected Attributes
ACE_Reactor * | reactor_ = 0
| Pointer to a process-wide <ACE_Reactor> singleton. More...
int | delete_reactor_ = 0
| Must delete the <reactor_> singleton if non-0. More...

## Detailed Description

The responsibility of this class is to forward all methods to its delegation/implementation class, e.g., <ACE_Select_Reactor> or <ACE_WFMO_Reactor>.

## Member Typedef Documentation

typedef int(* ACE_Reactor::REACTOR_EVENT_HOOK)(ACE_Reactor *)

| You can add a hook to various run_event methods and the hook will be called after handling every reactor event. If this function returns 0, <run_reactor_event_loop> will check for the return value of <handle_event>. If it is -1, the <run_reactor_event_loop> will return (pre-maturely.)

## Member Enumeration Documentation

anonymous enum

  | Operations on the "ready" mask and the "dispatch" mask. Enumeration values:
  GET_MASK | Retrieve current value of the the "ready" mask or the "dispatch" mask.
  SET_MASK | Set value of bits to new mask (changes the entire mask).
  ADD_MASK | Bitwise "or" the value into the mask (only changes enabled bits).
  CLR_MASK | Bitwise "and" the negation of the value out of the mask (only changes enabled bits).

## Constructor & Destructor Documentation

ACE_Reactor::ACE_Reactor | ( | ACE_Reactor_Impl * | impl = 0,
|  | int | delete_implementation = 0
| ) |

| Create the Reactor using <implementation>. The flag <delete_implementation> tells the Reactor whether or not to delete the <implementation> on destruction.

ACE_Reactor::~ACE_Reactor | ( | void |  | ) | `[virtual]`

| Close down and release all resources. Any notifications that remain queued on this reactor instance are lost.

ACE_Reactor::ACE_Reactor | ( | const ACE_Reactor & |  | ) | `[protected]`

| Deny access since member-wise won't work...

## Member Function Documentation

ACE_INLINE int ACE_Reactor::alertable_handle_events | ( | ACE_Time_Value & | max_wait_time | ) | `[virtual]`

ACE_INLINE int ACE_Reactor::alertable_handle_events | ( | ACE_Time_Value * | max_wait_time = 0 | ) | `[virtual]`

ACE_INLINE int ACE_Reactor::cancel_timer | ( | long | timer_id,
|  | const void ** | arg = 0,
|  | int | dont_call_handle_close = 1
| ) | `[virtual]`

| Cancel the single <Event_Handler> that matches the <timer_id> value, which was returned from the schedule method. If arg is non-NULL then it will be set to point to the ``magic cookie'' argument passed in when the Event_Handler was registered. This makes it possible to free up the memory and avoid memory leaks. Returns 1 if cancellation succeeded and 0 if the <timer_id> wasn't found.

ACE_INLINE int ACE_Reactor::cancel_timer | ( | ACE_Event_Handler * | event_handler,
|  | int | dont_call_handle_close = 1
| ) | `[virtual]`

| Cancel all <Event_Handler>s that match the address of <event_handler>. Returns number of handlers cancelled.

ACE_INLINE int ACE_Reactor::cancel_wakeup | ( | ACE_HANDLE | handle,
|  | ACE_Reactor_Mask | masks_to_be_cleared
| ) | `[virtual]`

| Clear <masks_to_be_cleared> from the <handle>'s entry. Note that this call does not cause the Reactor to re-examine its set of handlers - the new masks will be noticed the next time the Reactor waits for activity. If there is no other activity expected, or you need immediate re-examination of the wait masks, either call ACE_Reactor::notify after this call, or use ACE_Reactor::register_handler instead.

ACE_INLINE int ACE_Reactor::cancel_wakeup | ( | ACE_Event_Handler * | event_handler,
|  | ACE_Reactor_Mask | masks_to_be_cleared
| ) | `[virtual]`

| Clear <masks_to_be_cleared> from the <event_handler>'s entry. Note that this call does not cause the Reactor to re-examine its set of handlers - the new masks will be noticed the next time the Reactor waits for activity. If there is no other activity expected, or you need immediate re-examination of the wait masks, either call ACE_Reactor::notify after this call, or use ACE_Reactor::register_handler instead.

int ACE_Reactor::check_reconfiguration | ( | ACE_Reactor * |  | ) | `[static]`

| The singleton reactor is used by the <ACE_Service_Config>. Therefore, we must check for the reconfiguration request and handle it after handling an event.

ACE_INLINE int ACE_Reactor::close | ( | void |  | ) | `[virtual]`

| Close down and release all resources.

void ACE_Reactor::close_singleton | ( | void |  | ) | `[static]`

| Delete the dynamically allocated Singleton.

ACE_INLINE int ACE_Reactor::current_info | ( | ACE_HANDLE | handle,
|  | size_t & | size
| ) | `[virtual]`

| Returns 0, if the size of the current message has been put in <size> returns -1, if not. ACE_HANDLE allows the reactor to check if the caller is valid. Used for CLASSIX Reactor implementation.

const ACE_TCHAR * ACE_Reactor::dll_name | ( | void |  | ) | `[static]`

| Name of the dll in which the dll lives.

void ACE_Reactor::dump | ( | void |  | ) | const

| Dump the state of the object.

ACE_INLINE int ACE_Reactor::end_event_loop | ( | void |  | ) | `[static]`

| Instruct the <ACE_Reactor::instance> to terminate its event loop and notifies the <ACE_Reactor::instance> so that it can wake up and close down gracefully. Note that this method can only be used by the singleton <ACE_Reactor::instance>. Thus, to terminate another reactor, use <ACE_Reactor::end_reactor_event_loop>. Deprecated: Use ACE_Reactor::instance()->end_reactor_event_loop() instead

int ACE_Reactor::end_reactor_event_loop | ( | void |  | ) | `[virtual]`

| Instruct the Reactor to terminate its event loop and notifies the Reactor so that it can wake up and deactivate itself. Deactivating the Reactor would allow the Reactor to be shutdown gracefully. Internally the Reactor calls deactivate () on the underlying implementation. Any queued notifications remain queued on return from this method. If the event loop is restarted in the future, the notifications will be dispatched then. If the reactor is closed or deleted without further dispatching, the notifications will be lost.

ACE_INLINE int ACE_Reactor::event_loop_done | ( | void |  | ) | `[static]`

| Report if the <ACE_Reactor::instance>'s event loop is finished. Note that this method can only be used by the singleton <ACE_Reactor::instance>. Thus, to check another reactor use <ACE_Reactor::reactor_event_loop_done>. Deprecated: Use ACE_Reactor::instance()->reactor_event_loop_done() instead

ACE_INLINE int ACE_Reactor::handle_events | ( | ACE_Time_Value & | max_wait_time | ) | `[virtual]`

| This method is just like the one above, except the <max_wait_time> value is a reference and can therefore never be NULL. The only difference between <alertable_handle_events> and <handle_events> is that in the alertable case, the eventloop will return when the system queues an I/O completion routine or an Asynchronous Procedure Call.

ACE_INLINE int ACE_Reactor::handle_events | ( | ACE_Time_Value * | max_wait_time = 0 | ) | `[virtual]`

| This event loop driver blocks for up to <max_wait_time> before returning. It will return earlier if events occur. Note that <max_wait_time> can be 0, in which case this method blocks indefinitely until events occur. <max_wait_time> is decremented to reflect how much time this call took. For instance, if a time value of 3 seconds is passed to handle_events and an event occurs after 2 seconds, <max_wait_time> will equal 1 second. This can be used if an application wishes to handle events for some fixed amount of time. Returns the total number of timers and I/O <ACE_Event_Handler>s that were dispatched, 0 if the <max_wait_time> elapsed without dispatching any handlers, or -1 if an error occurs. The only difference between <alertable_handle_events> and <handle_events> is that in the alertable case, the eventloop will return when the system queues an I/O completion routine or an Asynchronous Procedure Call.

ACE_INLINE int ACE_Reactor::handler | ( | int | signum,
|  | ACE_Event_Handler ** | event_handler = 0
| ) | `[virtual]`

| Check to see if <signum> is associated with a valid Event_Handler bound to a signal. Return the <event_handler> associated with this <handler> if <event_handler> != 0.

ACE_INLINE int ACE_Reactor::handler | ( | ACE_HANDLE | handle,
|  | ACE_Reactor_Mask | mask,
|  | ACE_Event_Handler ** | event_handler = 0
| ) | `[virtual]`

| Check to see if <handle> is associated with a valid Event_Handler bound to <mask>. Return the <event_handler> associated with this <handler> if <event_handler> != 0.

ACE_INLINE void ACE_Reactor::implementation | ( | ACE_Reactor_Impl * | impl | ) | `[protected, virtual]`

| Set the implementation class.

ACE_INLINE ACE_Reactor_Impl * ACE_Reactor::implementation | ( | void |  | ) | const`[virtual]`

| Get the implementation class.

ACE_INLINE int ACE_Reactor::initialized | ( | void |  | ) | `[virtual]`

| Returns true if Reactor has been successfully initialized, else false.

ACE_Reactor * ACE_Reactor::instance | ( | ACE_Reactor * | r,
|  | int | delete_reactor = 0
| ) | `[static]`

| Set pointer to a process-wide <ACE_Reactor> and return existing pointer. If <delete_reactor> != 0 then we'll delete the Reactor at destruction time.

ACE_Reactor * ACE_Reactor::instance | ( | void |  | ) | `[static]`

| Get pointer to a process-wide <ACE_Reactor>.

ACE_INLINE ACE_Lock & ACE_Reactor::lock | ( | void |  | ) | `[virtual]`

| Returns a reference to the Reactor's internal lock.

ACE_INLINE int ACE_Reactor::mask_ops | ( | ACE_HANDLE | handle,
|  | ACE_Reactor_Mask | mask,
|  | int | ops
| ) | `[virtual]`

| GET/SET/ADD/CLR the dispatch MASK "bit" bound with the <handle> and <mask>.

ACE_INLINE int ACE_Reactor::mask_ops | ( | ACE_Event_Handler * | event_handler,
|  | ACE_Reactor_Mask | mask,
|  | int | ops
| ) | `[virtual]`

| GET/SET/ADD/CLR the dispatch mask "bit" bound with the <event_handler> and <mask>.

ACE_INLINE int ACE_Reactor::max_notify_iterations | ( | void |  | ) | `[virtual]`

| Get the maximum number of times that the ACE_Reactor will iterate and dispatch the <ACE_Event_Handlers> that are passed in via the notify queue before breaking out of its <ACE_Message_Queue::dequeue> loop.

ACE_INLINE void ACE_Reactor::max_notify_iterations | ( | int | iterations | ) | `[virtual]`

| Set the maximum number of times that ACE_Reactor will iterate and dispatch the <ACE_Event_Handlers> that are passed in via the notify queue before breaking out of its <ACE_Message_Queue::dequeue> 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.

const ACE_TCHAR * ACE_Reactor::name | ( | void |  | ) | `[static]`

| Name of the component--ACE_Reactor in this case.

ACE_INLINE int ACE_Reactor::notify | ( | ACE_Event_Handler * | event_handler = 0,
|  | ACE_Reactor_Mask | mask = ACE_Event_Handler::EXCEPT_MASK,
|  | ACE_Time_Value * | tv = 0
| ) | `[virtual]`

| Notify <event_handler> of <mask> event. The <ACE_Time_Value> indicates how long to blocking trying to notify. If <timeout> == 0, the caller will block until action is possible, else will wait until the relative time specified in <timeout> elapses). Note that <mask> can only be one of the pre-defined <ACE_Event_Handler> masks, e.g., <READ_MASK>, <WRITE_MASK>, or <EXCEPT_MASK>.

ACE_INLINE int ACE_Reactor::open | ( | size_t | size,
|  | int | restart = 0,
|  | ACE_Sig_Handler * | signal_handler = 0,
|  | ACE_Timer_Queue * | timer_queue = 0
| ) | `[virtual]`

| Initialize the <ACE_Reactor> to manage <max_number_of_handles>. If <restart> is non-0 then the <ACE_Reactor>'s <handle_events> method will be restarted automatically when <EINTR> occurs. If <signal_handler> or <timer_queue> are non-0 they are used as the signal handler and timer queue, respectively.

ACE_Reactor& ACE_Reactor::operator= | ( | const ACE_Reactor & |  | ) | `[protected]`

ACE_INLINE int ACE_Reactor::owner | ( | ACE_thread_t * | owner | ) | `[virtual]`

| Return the ID of the "owner" thread.

ACE_INLINE int ACE_Reactor::owner | ( | ACE_thread_t | new_owner,
|  | ACE_thread_t * | old_owner = 0
| ) | `[virtual]`

| Transfers ownership of Reactor to the <new_owner>.

ACE_INLINE int ACE_Reactor::purge_pending_notifications | ( | ACE_Event_Handler * | eh,
|  | ACE_Reactor_Mask | mask = ACE_Event_Handler::ALL_EVENTS_MASK
| ) | `[virtual]`

| Purge any notifications pending in this reactor for the specified <ACE_Event_Handler> object. If <eh> == 0, all notifications for all handlers are removed (but not any notifications posted just to wake up the reactor itself). Returns the number of notifications purged. Returns -1 on error.

ACE_INLINE int ACE_Reactor::reactor_event_loop_done | ( | void |  | ) | `[virtual]`

| Indicate if the Reactor's event loop has been ended.

ACE_INLINE int ACE_Reactor::ready_ops | ( | ACE_HANDLE | handle,
|  | ACE_Reactor_Mask | mask,
|  | int | ops
| ) | `[virtual]`

| GET/SET/ADD/CLR the ready "bit" bound with the <handle> and <mask>.

ACE_INLINE int ACE_Reactor::ready_ops | ( | ACE_Event_Handler * | event_handler,
|  | ACE_Reactor_Mask | mask,
|  | int | ops
| ) | `[virtual]`

| GET/SET/ADD/CLR the ready "bit" bound with the <event_handler> and <mask>.

ACE_INLINE int ACE_Reactor::register_handler | ( | const ACE_Sig_Set & | sigset,
|  | ACE_Event_Handler * | new_sh,
|  | ACE_Sig_Action * | new_disp = 0
| ) | `[virtual]`

| Registers <new_sh> to handle a set of signals <sigset> using the <new_disp>.

ACE_INLINE int ACE_Reactor::register_handler | ( | int | signum,
|  | ACE_Event_Handler * | new_sh,
|  | ACE_Sig_Action * | new_disp = 0,
|  | ACE_Event_Handler ** | old_sh = 0,
|  | ACE_Sig_Action * | old_disp = 0
| ) | `[virtual]`

| Register <new_sh> to handle the signal <signum> using the <new_disp>. Returns the <old_sh> that was previously registered (if any), along with the <old_disp> of the signal handler.

ACE_INLINE int ACE_Reactor::register_handler | ( | const ACE_Handle_Set & | handles,
|  | ACE_Event_Handler * | event_handler,
|  | ACE_Reactor_Mask | mask
| ) | `[virtual]`

| Register <event_handler> with all the <handles> in the <Handle_Set>.

ACE_INLINE int ACE_Reactor::register_handler | ( | ACE_HANDLE | event_handle,
|  | ACE_HANDLE | io_handle,
|  | ACE_Event_Handler * | event_handler,
|  | ACE_Reactor_Mask | mask
| ) | `[virtual]`

| Register an <event_handler> that will be notified when <event_handle> is signaled. <mask> specifies the network events that the <event_handler> is interested in.

ACE_INLINE int ACE_Reactor::register_handler | ( | ACE_Event_Handler * | event_handler,
|  | ACE_HANDLE | event_handle = ACE_INVALID_HANDLE
| ) | `[virtual]`

| Register an <event_handler> that will be notified when <event_handle> is signaled. Since no event mask is passed through this interface, it is assumed that the <event_handle> being passed in is an event handle and not an I/O handle. Originally this interface was available for all platforms, but because ACE_HANDLE is an int on non-Win32 platforms, compilers are not able to tell the difference between register_handler(ACE_Event_Handler*,ACE_Reactor_Mask) and register_handler(ACE_Event_Handler*,ACE_HANDLE). Therefore, we have restricted this method to Win32 only.

ACE_INLINE int ACE_Reactor::register_handler | ( | ACE_HANDLE | io_handle,
|  | ACE_Event_Handler * | event_handler,
|  | ACE_Reactor_Mask | mask
| ) | `[virtual]`

| Register <event_handler> with <mask>. The I/O handle is provided through the <io_handle> parameter.

ACE_INLINE int ACE_Reactor::register_handler | ( | ACE_Event_Handler * | handler,
|  | ACE_Reactor_Mask | mask
| ) | `[virtual]`

| Register <event_handler> with <mask>. The I/O handle will always come from <get_handle> on the <event_handler>.

ACE_INLINE int ACE_Reactor::remove_handler | ( | const ACE_Sig_Set & | sigset | ) | `[virtual]`

| Calls <remove_handler> for every signal in <sigset>.

ACE_INLINE int ACE_Reactor::remove_handler | ( | int | signum,
|  | ACE_Sig_Action * | new_disp,
|  | ACE_Sig_Action * | old_disp = 0,
|  | int | sigkey = -1
| ) | `[virtual]`

| Remove the ACE_Event_Handler currently associated with <signum>. Install the new disposition (if given) and return the previous disposition (if desired by the caller). Returns 0 on success and -1 if <signum> is invalid.

ACE_INLINE int ACE_Reactor::remove_handler | ( | const ACE_Handle_Set & | handle_set,
|  | ACE_Reactor_Mask | mask
| ) | `[virtual]`

| Removes all handles in <handle_set>. If <mask> == <ACE_Event_Handler::DONT_CALL> then the <handle_close> method of the associated <event_handler>s is not invoked.

ACE_INLINE int ACE_Reactor::remove_handler | ( | ACE_HANDLE | handle,
|  | ACE_Reactor_Mask | mask
| ) | `[virtual]`

| Removes the <ACE_Event_Handler> associated with <handle>. If <mask> includes <ACE_Event_Handler::DONT_CALL> then the <handle_close> method of the associated <event_handler> is not invoked.

ACE_INLINE int ACE_Reactor::remove_handler | ( | ACE_Event_Handler * | event_handler,
|  | ACE_Reactor_Mask | mask
| ) | `[virtual]`

| Removes <event_handler>. Note that the I/O handle will be obtained using <get_handle> method of <event_handler> . If <mask> includes <ACE_Event_Handler::DONT_CALL> then the <handle_close> method of the <event_handler> is not invoked.

ACE_INLINE int ACE_Reactor::requeue_position | ( | void |  | ) | `[virtual]`

| Get position of the owner thread.

ACE_INLINE void ACE_Reactor::requeue_position | ( | int | position | ) | `[virtual]`

| Set position of the owner thread.

ACE_INLINE void ACE_Reactor::reset_event_loop | ( | void |  | ) | `[static]`

| Resets the <ACE_Reactor::end_event_loop_> static so that the <run_event_loop> method can be restarted. Note that this method can only be used by the singleton <ACE_Reactor::instance>. Thus, to reset another reactor use <ACE_Reactor::reset_reactor_event_loop>. Deprecated: Use ACE_Reactor::instance()->reset_reactor_event_loop() instead

void ACE_Reactor::reset_reactor_event_loop | ( | void |  | ) | `[virtual]`

| Resets the <ACE_Reactor::end_event_loop_> static so that the <run_event_loop> method can be restarted.

ACE_INLINE int ACE_Reactor::reset_timer_interval | ( | long | timer_id,
|  | const ACE_Time_Value & | interval
| ) | `[virtual]`

| Resets the interval of the timer represented by <timer_id> to <interval>, which is specified in relative time to the current <gettimeofday>. If <interval> is equal to <ACE_Time_Value::zero>, the timer will become a non-rescheduling timer. Returns 0 if successful, -1 if not.

ACE_INLINE int ACE_Reactor::restart | ( | int | r | ) | `[virtual]`

| Set a new value for restart and return the original value.

ACE_INLINE int ACE_Reactor::restart | ( | void |  | ) | `[virtual]`

| Get the existing restart value.

int ACE_Reactor::resumable_handler | ( | void |  | ) | `[virtual]`

| Does the reactor allow the application to resume the handle on its own ie. can it pass on the control of handle resumption to the application. A positive value indicates that the handlers are application resumable. A value of 0 indicates otherwise.

ACE_INLINE int ACE_Reactor::resume_handler | ( | const ACE_Handle_Set & | handles | ) | `[virtual]`

| Resume all <handles> in handle set.

ACE_INLINE int ACE_Reactor::resume_handler | ( | ACE_HANDLE | handle | ) | `[virtual]`

| Resume <handle>.

ACE_INLINE int ACE_Reactor::resume_handler | ( | ACE_Event_Handler * | event_handler | ) | `[virtual]`

| Resume <event_handler>. Use <ACE_Event_Handler::get_handle> to get the handle.

ACE_INLINE int ACE_Reactor::resume_handlers | ( | void |  | ) | `[virtual]`

| Resume all <handles>.

ACE_INLINE int ACE_Reactor::run_alertable_event_loop | ( | ACE_Time_Value & | tv | ) | `[static]`

ACE_INLINE int ACE_Reactor::run_alertable_event_loop | ( | void |  | ) | `[static]`

int ACE_Reactor::run_alertable_reactor_event_loop | ( | ACE_Time_Value & | tv,
|  | REACTOR_EVENT_HOOK | eh = 0
| ) | `[virtual]`

int ACE_Reactor::run_alertable_reactor_event_loop | ( | REACTOR_EVENT_HOOK | eh = 0 | ) | `[virtual]`

ACE_INLINE int ACE_Reactor::run_event_loop | ( | ACE_Time_Value & | tv | ) | `[static]`

| Run the event loop until the <ACE_Reactor::handle_events> or <ACE_Reactor::alertable_handle_events> methods returns -1, the <end_event_loop> method is invoked, or the <ACE_Time_Value> expires. Note that this method can only be used by the singleton <ACE_Reactor::instance>. Thus, to run another reactor use <ACE_Reactor::run_reactor_event_loop>. Deprecated: Use ACE_Reactor::instance()->run_reactor_event_loop() instead

ACE_INLINE int ACE_Reactor::run_event_loop | ( | void |  | ) | `[static]`

| Run the event loop until the <ACE_Reactor::handle_events/ACE_Reactor::alertable_handle_events> method returns -1 or the <end_event_loop> method is invoked. Note that this method can only be used by the singleton <ACE_Reactor::instance>. Thus, to run another reactor use <ACE_Reactor::run_reactor_event_loop>. Deprecated: Use ACE_Reactor::instance()->run_reactor_event_loop() instead

int ACE_Reactor::run_reactor_event_loop | ( | ACE_Time_Value & | tv,
|  | REACTOR_EVENT_HOOK | eh = 0
| ) | `[virtual]`

| Run the event loop until the <ACE_Reactor::handle_events> or <ACE_Reactor::alertable_handle_events> methods returns -1, the <end_reactor_event_loop> method is invoked, or the <ACE_Time_Value> expires.

int ACE_Reactor::run_reactor_event_loop | ( | REACTOR_EVENT_HOOK | eh = 0 | ) | `[virtual]`

| Run the event loop until the <ACE_Reactor::handle_events/ACE_Reactor::alertable_handle_events> method returns -1 or the <end_reactor_event_loop> method is invoked.

ACE_INLINE long ACE_Reactor::schedule_timer | ( | ACE_Event_Handler * | event_handler,
|  | const void * | arg,
|  | const ACE_Time_Value & | delta,
|  | const ACE_Time_Value & | interval = ACE_Time_Value::zero
| ) | `[virtual]`

  | Schedule an ACE_Event_Handler that will expire after an amount of time. The return value of this method, a timer_id value, uniquely identifies the event_handler in the ACE_Reactor's internal list of timers. This timer_id value can be used to cancel the timer with the cancel_timer() call. See also: cancel_timer() , reset_timer_interval() Parameters:
  event_handler | event handler to schedule on reactor
  arg | argument passed to the handle_timeout() method of event_handler
  delay | time interval after which the timer will expire
  interval | time interval after which the timer will be automatically rescheduled
Returns: -1 on failure, a timer_id value on success

ACE_INLINE int ACE_Reactor::schedule_wakeup | ( | ACE_HANDLE | handle,
|  | ACE_Reactor_Mask | masks_to_be_added
| ) | `[virtual]`

| Add <masks_to_be_added> to the <handle>'s entry. <event_handler> associated with <handle> must already have been registered. Note that this call does not cause the Reactor to re-examine its set of handlers - the new masks will be noticed the next time the Reactor waits for activity. If there is no other activity expected, or you need immediate re-examination of the wait masks, either call ACE_Reactor::notify after this call, or use ACE_Reactor::register_handler instead.

ACE_INLINE int ACE_Reactor::schedule_wakeup | ( | ACE_Event_Handler * | event_handler,
|  | ACE_Reactor_Mask | masks_to_be_added
| ) | `[virtual]`

| Add <masks_to_be_added> to the <event_handler>'s entry. <event_handler> must already have been registered. Note that this call does not cause the Reactor to re-examine its set of handlers - the new masks will be noticed the next time the Reactor waits for activity. If there is no other activity expected, or you need immediate re-examination of the wait masks, either call ACE_Reactor::notify after this call, or use ACE_Reactor::register_handler instead.

ACE_INLINE int ACE_Reactor::set_sig_handler | ( | ACE_Sig_Handler * | signal_handler | ) | `[virtual]`

| Use a user specified signal handler instead.

ACE_INLINE int ACE_Reactor::set_timer_queue | ( | ACE_Timer_Queue * | tq | ) | `[virtual]`

| Deprecated: Use <timer_queue> instead. Set a user specified timer queue.

ACE_INLINE size_t ACE_Reactor::size | ( | void |  | ) | const`[virtual]`

| Returns the current size of the Reactor's internal descriptor table.

ACE_INLINE int ACE_Reactor::suspend_handler | ( | const ACE_Handle_Set & | handles | ) | `[virtual]`

| Suspend all <handles> in handle set temporarily.

ACE_INLINE int ACE_Reactor::suspend_handler | ( | ACE_HANDLE | handle | ) | `[virtual]`

| Suspend <handle> temporarily.

ACE_INLINE int ACE_Reactor::suspend_handler | ( | ACE_Event_Handler * | event_handler | ) | `[virtual]`

| Suspend <event_handler> temporarily. Use <ACE_Event_Handler::get_handle> to get the handle.

ACE_INLINE int ACE_Reactor::suspend_handlers | ( | void |  | ) | `[virtual]`

| Suspend all <handles> temporarily.

ACE_INLINE ACE_Timer_Queue * ACE_Reactor::timer_queue | ( | void |  | ) | const`[virtual]`

| Return the current <ACE_Timer_Queue>.

ACE_INLINE int ACE_Reactor::timer_queue | ( | ACE_Timer_Queue * | tq | ) | `[virtual]`

| Set a user-specified timer queue.

ACE_INLINE int ACE_Reactor::uses_event_associations | ( | void |  | ) | `[virtual]`

| Return 1 if we any event associations were made by the reactor for the handles that it waits on, 0 otherwise.

ACE_INLINE void ACE_Reactor::wakeup_all_threads | ( | void |  | ) | `[virtual]`

| Wake up all threads in waiting in the event loop.

ACE_INLINE int ACE_Reactor::work_pending | ( | const ACE_Time_Value & | max_wait_time = ACE_Time_Value::zero | ) | `[virtual]`

| Returns non-zero if there are I/O events "ready" for dispatching, but does not actually dispatch the event handlers. By default, don't block while checking this, i.e., "poll".

## Member Data Documentation

ACE_Reactor::ACE_ALLOC_HOOK_DECLARE

| Declare the dynamic allocation hooks.

int ACE_Reactor::delete_implementation_`[protected]`

| Flag used to indicate whether we are responsible for cleaning up the implementation instance.

int ACE_Reactor::delete_reactor_ = 0`[static, protected]`

| Must delete the <reactor_> singleton if non-0.

ACE_Reactor_Impl* ACE_Reactor::implementation_`[protected]`

| Delegation/implementation class that all methods will be forwarded to.

ACE_Reactor * ACE_Reactor::reactor_ = 0`[static, protected]`

| Pointer to a process-wide <ACE_Reactor> singleton.

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

- Reactor.h
- Reactor.cpp
- Reactor.i