#include <Timer_Queue_Adapters.h>
Public Types | |
typedef TQ | TIMER_QUEUE |
Trait for the underlying queue type. | |
Public Member Functions | |
ACE_Thread_Timer_Queue_Adapter (ACE_Thread_Manager *=ACE_Thread_Manager::instance(), TQ *timer_queue=0) | |
virtual | ~ACE_Thread_Timer_Queue_Adapter (void) |
Destructor. | |
long | schedule (ACE_Event_Handler *handler, const void *act, const ACE_Time_Value &future_time, const ACE_Time_Value &interval=ACE_Time_Value::zero) |
int | cancel (long timer_id, const void **act=0) |
virtual int | svc (void) |
Runs the dispatching thread. | |
virtual void | deactivate (void) |
Inform the dispatching thread that it should terminate. | |
ACE_SYNCH_RECURSIVE_MUTEX & | mutex (void) |
Access the locking mechanism, useful for iteration. | |
int | timer_queue (TQ *tq) |
Set a user-specified timer queue. | |
TQ * | timer_queue (void) const |
Return the current <TQ>. | |
ACE_thread_t | thr_id (void) const |
Return the thread id of our active object. | |
virtual int | activate (long flags=THR_NEW_LWP|THR_JOINABLE, int n_threads=1, int force_active=0, long priority=ACE_DEFAULT_THREAD_PRIORITY, int grp_id=-1, ACE_Task_Base *task=0, ACE_hthread_t thread_handles[]=0, void *stack[]=0, size_t stack_size[]=0, ACE_thread_t thread_ids[]=0, const char *thr_name[]=0) |
Private Attributes | |
TQ * | timer_queue_ |
The underlying Timer_Queue. | |
bool | delete_timer_queue_ |
ACE_SYNCH_RECURSIVE_MUTEX | mutex_ |
ACE_SYNCH_RECURSIVE_CONDITION | condition_ |
bool | active_ |
ACE_thread_t | thr_id_ |
Thread id of our active object task. |
This implementation uses a separate thread to dispatch the timers. The base queue need not be thread safe; this class takes all the necessary locks.
typedef TQ ACE_Thread_Timer_Queue_Adapter< TQ >::TIMER_QUEUE |
Trait for the underlying queue type.
ACE_Thread_Timer_Queue_Adapter< TQ >::ACE_Thread_Timer_Queue_Adapter | ( | ACE_Thread_Manager * | tm = ACE_Thread_Manager::instance () , |
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TQ * | timer_queue = 0 | |||
) | [inline] |
Creates the timer queue. Activation of the task is the user's responsibility. Optionally a pointer to a timer queue can be passed, when no pointer is passed, a TQ is dynamically created
ACE_Thread_Timer_Queue_Adapter< TQ >::~ACE_Thread_Timer_Queue_Adapter | ( | void | ) | [inline, virtual] |
Destructor.
int ACE_Thread_Timer_Queue_Adapter< TQ >::activate | ( | long | flags = THR_NEW_LWP | THR_JOINABLE , |
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int | n_threads = 1 , |
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int | force_active = 0 , |
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long | priority = ACE_DEFAULT_THREAD_PRIORITY , |
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int | grp_id = -1 , |
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ACE_Task_Base * | task = 0 , |
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ACE_hthread_t | thread_handles[] = 0 , |
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void * | stack[] = 0 , |
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size_t | stack_size[] = 0 , |
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ACE_thread_t | thread_ids[] = 0 , |
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const char * | thr_name[] = 0 | |||
) | [inline, virtual] |
We override the default activate() method so that we can ensure that only a single thread is ever spawned. Otherwise, too many weird things can happen...
Reimplemented from ACE_Task_Base.
int ACE_Thread_Timer_Queue_Adapter< TQ >::cancel | ( | long | timer_id, | |
const void ** | act = 0 | |||
) | [inline] |
Cancel the timer_id and return the act parameter if an address is passed in. Also wakes up the dispatching thread.
void ACE_Thread_Timer_Queue_Adapter< TQ >::deactivate | ( | void | ) | [inline, virtual] |
Inform the dispatching thread that it should terminate.
ACE_SYNCH_RECURSIVE_MUTEX & ACE_Thread_Timer_Queue_Adapter< TQ >::mutex | ( | void | ) | [inline] |
Access the locking mechanism, useful for iteration.
long ACE_Thread_Timer_Queue_Adapter< TQ >::schedule | ( | ACE_Event_Handler * | handler, | |
const void * | act, | |||
const ACE_Time_Value & | future_time, | |||
const ACE_Time_Value & | interval = ACE_Time_Value::zero | |||
) | [inline] |
Schedule the timer according to the semantics of the <TQ>; wakes up the dispatching thread.
int ACE_Thread_Timer_Queue_Adapter< TQ >::svc | ( | void | ) | [inline, virtual] |
ACE_thread_t ACE_Thread_Timer_Queue_Adapter< TQ >::thr_id | ( | void | ) | const [inline] |
Return the thread id of our active object.
TQ * ACE_Thread_Timer_Queue_Adapter< TQ >::timer_queue | ( | void | ) | const [inline] |
Return the current <TQ>.
int ACE_Thread_Timer_Queue_Adapter< TQ >::timer_queue | ( | TQ * | tq | ) | [inline] |
Set a user-specified timer queue.
bool ACE_Thread_Timer_Queue_Adapter< TQ >::active_ [private] |
When deactivate is called this variable turns to false and the dispatching thread is signalled, to terminate its main loop.
ACE_SYNCH_RECURSIVE_CONDITION ACE_Thread_Timer_Queue_Adapter< TQ >::condition_ [private] |
The dispatching thread sleeps on this condition while waiting to dispatch the next timer; it is used to wake it up if there is a change on the timer queue.
bool ACE_Thread_Timer_Queue_Adapter< TQ >::delete_timer_queue_ [private] |
Keeps track of whether we should delete the timer queue (if we didn't create it, then we don't delete it).
ACE_SYNCH_RECURSIVE_MUTEX ACE_Thread_Timer_Queue_Adapter< TQ >::mutex_ [private] |
The mutual exclusion mechanism that is required to use the <condition_>.
ACE_thread_t ACE_Thread_Timer_Queue_Adapter< TQ >::thr_id_ [private] |
Thread id of our active object task.
TQ* ACE_Thread_Timer_Queue_Adapter< TQ >::timer_queue_ [private] |
The underlying Timer_Queue.